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29 pages, 1828 KiB  
Review
Advances in Fermentation Technology: A Focus on Health and Safety
by Theoneste Niyigaba, Kübra Küçükgöz, Danuta Kołożyn-Krajewska, Tomasz Królikowski and Monika Trząskowska
Appl. Sci. 2025, 15(6), 3001; https://doi.org/10.3390/app15063001 - 10 Mar 2025
Abstract
Fermentation represents a pivotal bioconversion process that enhances foodstuffs’ nutritional and sensory attributes while playing a crucial role in global food systems. Nevertheless, concerns about safety issues associated with microbial contamination and the production of biogenic amines are often understated. This review appraised [...] Read more.
Fermentation represents a pivotal bioconversion process that enhances foodstuffs’ nutritional and sensory attributes while playing a crucial role in global food systems. Nevertheless, concerns about safety issues associated with microbial contamination and the production of biogenic amines are often understated. This review appraised recent advancements in fermentation technology, emphasising their association with the health and safety of fermented foods. Key advances include predictive microbiology models, in some cases achieving up to 95% accuracy in predicting microbial behaviour, and high-throughput sequencing (HTS) for microbial enrichment. In addition, advanced detection methods such as biosensors and PCR-based assays enable the rapid identification of contaminants, improving manufacturing processes and preserving product integrity. Advanced bioreactor technologies equipped with real-time monitoring systems have been shown to increase fermentation efficiency. Moreover, innovative packaging, artificial intelligence, machine learning models, and sensor technologies have optimised fermentation processes and contributed to tracking quality and safety in the blockchain technology supply chain, potentially reducing spoilage rates and showing a decrease in production times. This study also addresses regulatory frameworks essential for establishing robust safety protocols. Integrating advanced fermentation technologies is imperative to meet the growing global demand for safe fermented foods. Continuous research and innovation are needed to address safety challenges and promote industry practices prioritising health and quality, ensuring public safety and building consumer confidence in fermented products. Full article
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<p>Key factors associated with unsafe fermented foods and health risks for consumers.</p>
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<p>Examples of the food safety advantages derived from recent progress in fermentation technology. The combination of these modern technologies indicated a transition to more effective and efficient safety measures in the fermented food sector, enhancing customer trust and public health.</p>
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<p>Schematic illustration of technologically advanced fermentation processes as a sustainable solution to food production.</p>
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14 pages, 1817 KiB  
Article
Bifidobacterium adolescentis PRL2019 in Pediatric Irritable Bowel Syndrome: A Multicentric, Randomized, Double-Blind, Placebo-Controlled Trial
by Valentina Giorgio, Giovanna Quatrale, Maurizio Mennini, Marisa Piccirillo, Silvia Furio, Giuseppe Stella, Alessandro Ferretti, Pasquale Parisi, Melania Evangelisti, Enrico Felici, Paolo Quitadamo and Giovanni Di Nardo
Microorganisms 2025, 13(3), 627; https://doi.org/10.3390/microorganisms13030627 - 10 Mar 2025
Abstract
Background: The gut microbiota plays a pivotal role in gastrointestinal inflammation and immune response since changes in microbiota may result in abnormal neurotransmitter expression, inducing changes in gastrointestinal sensory–motor function and leading to symptom onset in irritable bowel syndrome (IBS) patients. [...] Read more.
Background: The gut microbiota plays a pivotal role in gastrointestinal inflammation and immune response since changes in microbiota may result in abnormal neurotransmitter expression, inducing changes in gastrointestinal sensory–motor function and leading to symptom onset in irritable bowel syndrome (IBS) patients. The Bifidobacterium adolescentis species has a documented immunomodulatory effect through its ability to produce γ-aminobutyric acid (GABA), the primary inhibitory neurotransmitter in the mammalian central nervous system, which is reduced in IBS patients. Aim and Methods: This is a multicentric, randomized, double-blind, placebo-controlled, parallel-arm trial aimed at evaluating the effectiveness of Bifidobacterium adolescentis PRL2019 in children with IBS. IBS children diagnosed according to Rome IV criteria were enrolled and randomized into two groups to receive one stick containing 20 × 109 colony-forming unit of Bifidobacterium adolescentis PRL2019 (Gabapral, Pontenure, Italy) or an equivalent placebo once a day, in a 1:1 ratio, for 12 weeks. Clinical evaluation of symptoms was performed every four weeks using validated scores. Bowel habit characteristics were assessed using the Bristol Stool Chart (BSC). Results: Seventy-two subjects (mean age 12.2 ± 1.8 years, 30 males) were enrolled and randomized into two groups, each of thirty-six patients. No significant differences were observed between the two groups regarding demographic characteristics, distribution of IBS subtypes, or baseline measures of IBS severity and BSC. The proportion of patients achieving complete remission was significantly higher in the BA Group (19/36; 52.8%) than in the Placebo Group (7/36; 19.4%, p = 0.003, odds ratio [OR] 0.216, 95% confidence interval [CI] 0.075–0.619). Both groups obtained a reduction in Total IBS Symptom Severity Scale (IBS SSS), Pain Intensity Score (PIS), Pain Frequency Score (PFS), and Life Interference Score (LIS) from T0 to T12. However, upon intergroup comparison, only in the BA group did the IBS-SSS (p = 0.001), PIS (p = 0.001), LIS (p = 0.015), and PFS (p = 0.005) significantly improve between T0 and T12. BSC showed a greater representation of normal stools (type 3–4) at the end of treatment in the BA group compared with baseline (25% vs. 58.3%, p = 0.004), especially in patients who presented an IBS–constipation subtype at T0 (44.5% vs. 19.4%, p = 0.02). Conclusions: In our study, Bifidobacterium adolescentis PRL2019 reduces the severity and frequency of symptoms in children with IBS, positively affecting bowel habits in children with the IBS–constipation subtype. Full article
(This article belongs to the Section Medical Microbiology)
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<p>Study design.</p>
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<p>Consort diagram of the study.</p>
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<p>Complete remission in <span class="html-italic">Bifidobacterium adolescent’s PRL2019</span> (<span class="html-italic">BA</span>) and placebo group * significant difference vs. T0.</p>
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<p>(<b>A</b>) IBS-Symptom Severity Scale (<span class="html-italic">IBS-SSS</span>) trend in <span class="html-italic">BA</span> and placebo group, (<b>B</b>) Pain Intensity Score (<span class="html-italic">PIS</span>) trend in <span class="html-italic">BA</span> and placebo group, (<b>C</b>) Life Interference Score (<span class="html-italic">LIS</span>) trend in <span class="html-italic">BA</span> and placebo group, (<b>D</b>) Pain Frequency Score <span class="html-italic">(PFS</span>) trend in <span class="html-italic">BA</span> and placebo group.</p>
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<p>(<b>A</b>) IBS-Symptom Severity Scale (<span class="html-italic">IBS-SSS</span>) trend in <span class="html-italic">BA</span> and placebo group, (<b>B</b>) Pain Intensity Score (<span class="html-italic">PIS</span>) trend in <span class="html-italic">BA</span> and placebo group, (<b>C</b>) Life Interference Score (<span class="html-italic">LIS</span>) trend in <span class="html-italic">BA</span> and placebo group, (<b>D</b>) Pain Frequency Score <span class="html-italic">(PFS</span>) trend in <span class="html-italic">BA</span> and placebo group.</p>
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<p>Bristol Stool Chart (<span class="html-italic">BSC</span>) subtypes in BA and in placebo groups at baseline and after 12 weeks. * Significant difference vs. T0.</p>
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18 pages, 3586 KiB  
Review
Advances in Reducing Salt Content in Processed Meats with Basic Amino Acids
by Rui Fang and Zongshuai Zhu
Foods 2025, 14(6), 940; https://doi.org/10.3390/foods14060940 - 10 Mar 2025
Abstract
Basic amino acids have emerged as a pivotal area of research in efforts to decrease the sodium content in meat products, primarily due to their ability to enhance flavor, improve taste, and effectively replace sodium salts. This review synthesizes current strategies for sodium [...] Read more.
Basic amino acids have emerged as a pivotal area of research in efforts to decrease the sodium content in meat products, primarily due to their ability to enhance flavor, improve taste, and effectively replace sodium salts. This review synthesizes current strategies for sodium reduction in meat products and offers an overview of previous studies examining the role of basic amino acids in such applications, including their impact on sensory attributes and structural alterations. Furthermore, the implications of these strategies on product quality are examined, addressing aspects such as protein hydrolysis, oxidation, color, and textural changes, as well as potential underlying mechanisms. Additionally, future challenges and trends in the utilization of basic amino acids in processed meats are explored. Overall, basic amino acids exhibit significant potential as sodium salt substitutes, particularly at low NaCl concentrations. Their combinations with chloride salts, yeast extracts, and other salts have been explored as alternative sodium reduction strategies. However, challenges remain in their application to meat products, including high production costs, consumer acceptance, and stability during large-scale production. Future research should focus on optimizing the use of basic amino acids, enhancing their economic feasibility, and addressing technical hurdles. Full article
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<p>Health risks associated with excessive salt intake.</p>
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<p>Strategies for reducing sodium in meat products. (<b>A</b>) Direct reduction in salt content. (<b>B</b>) Design of unique physical structures, including shape alterations and hollow structures (a–f). (<b>C</b>) Changes in processing techniques. (<b>D</b>) Use of non-sodium alternatives; the main salt taste receptor in human (a: epithelial sodium channel receptor; b: transient receptor potential vanillic acid receptor).</p>
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<p>(<b>A</b>) The effect of L-Lys and L-Arg on the emulsion stability of meat products [<a href="#B66-foods-14-00940" class="html-bibr">66</a>]; (a1,a2) control, (b1,b2) 0.6% Lys-treated emulsified sausage, (c1,c2) 0.6% Arg-treated emulsified sausage and (d1,d2) 3.0% soybean isolate protein-treated emulsified sausage. (<b>B</b>) Spectroscopic techniques and chemical probes used to investigate the mechanisms by which L-Arg and L-Lys influence myosin solubility [<a href="#B63-foods-14-00940" class="html-bibr">63</a>]; different letters (a,b) denote significant differences (<span class="html-italic">p</span> &lt; 0.05). (<b>C</b>) The impact of L-Arg on the microstructure of chicken actinoglobulin gels [<a href="#B65-foods-14-00940" class="html-bibr">65</a>]; (A1,A2) SEM of Arg 0%/pH 7.23 group and (B1,B2) SEM of Arg 0.1%/pH 7.23 group. (<b>D</b>) The influence of L-His on the color changes in meat during storage [<a href="#B68-foods-14-00940" class="html-bibr">68</a>]; (a–c) color changes during storage, respectively. (<b>E</b>) pH values of low-sodium frankfurter sausages with varying levels of L-Lys added [<a href="#B54-foods-14-00940" class="html-bibr">54</a>]; different letters (a–e) denote significant differences (<span class="html-italic">p</span> &lt; 0.05). (<b>F</b>) The effect of basic amino acids on the elasticity of fried beef patties [<a href="#B58-foods-14-00940" class="html-bibr">58</a>]; different letters (a–f) denote significant differences (<span class="html-italic">p</span> &lt; 0.05).</p>
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<p>Molecular mechanisms of basic amino acids in flavor regulation (√ denotes promotion, and × denotes inhibition).</p>
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21 pages, 1192 KiB  
Review
Unlocking the Potential of Vitamin D: A Comprehensive Exploration of Its Role in Neurological Health and Diseases
by Rehana Khatoon
Biology 2025, 14(3), 280; https://doi.org/10.3390/biology14030280 - 10 Mar 2025
Viewed by 89
Abstract
Vitamin D (VD), an indispensable micronutrient renowned for its pivotal role in bone health, is increasingly recognized as a frontline therapy for bone-related disorders owing to its involvement in maintaining calcium/phosphorus levels. Beyond these benefits, VD exhibits a modulatory impact on redox imbalance, [...] Read more.
Vitamin D (VD), an indispensable micronutrient renowned for its pivotal role in bone health, is increasingly recognized as a frontline therapy for bone-related disorders owing to its involvement in maintaining calcium/phosphorus levels. Beyond these benefits, VD exhibits a modulatory impact on redox imbalance, inflammation, and anti-apoptotic pathways implicated in brain-related disorders. Recent findings reveal a notable decrease in VD and its receptor expression in the cerebrospinal fluid of individuals with brain diseases, indicating a positive association between VD levels and normal brain function. Moreover, emerging reports underscore VD’s potential in mitigating the pathophysiology of neurodegenerative diseases, including memory and motor impairments, mitochondrial dysfunction, and neuronal loss. Extensive in vitro and in vivo studies elucidate VD’s multifaceted neuroprotective mechanisms, effectively mitigating neuronal damage and ATP deprivation, thus reducing mortality and morbidity. This review comprehensively examines VD’s diverse attributes, encompassing antioxidative, anti-inflammatory, anti-apoptotic, and neurogenic effects. It provides contemporary insights into VD’s efficacious actions at appropriate doses and exposures across diverse neurological experimental models. Furthermore, the clinical relevance of VD in treating patients with neurological diseases is explored. Overall, this review contributes to the exploration of potential neuroprotective agents and holds promise for improving human health outcomes in the future. Full article
(This article belongs to the Section Neuroscience)
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<p>VD metabolism and functions: In the skin cells, UV-B light exposure from the sun induces the conversion of cholesterol to pro-vitamin D forms. Pro-vitamin D enters the liver and is converted into 25 hydroxy-vitamin 3 (cholecalciferol) via the 25-hydroxylase enzyme. This is the first hydroxylation step of active form vitamin D synthesis, and it is also taken from external food sources. The second step of hydroxylation is initiated in the kidney by 1,α-25 hydroxylase enzyme and converted into 1,25 hydroxy-vitamin D, which is an active form of vitamin D. The active form binds with the vitamin D receptor (VDR), enters the nucleus, and regulates the synthesis of antioxidant, anti-inflammatory molecule, Ca<sup>+2</sup> homeostasis, neurotransmitter, mitochondrial, and developmental genes via the relevant specific gene transcription machinery activation. The active form of VD is regulated by kidney resident Cyp24A1 and A4 enzyme by feedback mechanism activation.</p>
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<p>VD-mediated regulation of causative factors in different neurological conditions. Oxidative stress, mitochondrial dysfunction, ER stress, inflammation, and apoptosis in neuronal cells unleash the aging process as a consequence of the onset of Alzheimer’s, Parkinson’s, Huntington’s, ALS, and schizophrenia diseases. VD normalizes the process of these causative agent mechanics and reduces the chances of disease onset and pathogenesis in the brain.</p>
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<p>Probable mechanisms involved in the onset and pathogenesis of different neurological diseases and their regulation by VD: In neurological disease conditions, VD deficiency occurs and induces oxidative stress, which is ultimately linked to mitochondrial dysfunction. Mitochondrial dysfunction is the cause of ATP depletion, reduced mitochondrial complex activity, and mitochondrial membrane permeability disruption. As a result of the disruption of membrane permeability, this decreases the affinity of cyt c with the inner mitochondrial membrane and promotes the release of cyt c in the cytosol from mitochondria. Cyt c induces the apoptosis process protein via the cleavage of pro-caspase-3 to caspase-3, and the loss of neuronal cells occurrs. Mitochondria also regulate the balance of Ca<sup>+2</sup> in the cytosol and mitochondria, and due to impairment in the normal function of mitochondrial activities, this decreases the CaMKII/CREB/BDNF pathway, and eventually, the event of memory loss is initiated. In addition, oxidative stress involved in ROS formation by the mitochondrial respiration alteration or other components of the body, like NADPH oxidase, regulate mitochondrial biogenesis and mitochondrial fission through the AMPK and PGC-1 pathways. ROS induce inflammation via the activation of the NFkB pathway, which is also with the apoptosis of neuronal cells. On the other hand, the induction of the MAPK pathway by excessive ROS generation also participated in the neurodegeneration process by apoptosis induction. Abbreviation: TNFα = tumor necrosis factor, IL6 = interleukin-6, Cyt c = cytochrome c, CREB = cAMP-response element binding protein, CaMKII = calcium/calmodulin-dependent protein kinase II, PGC1 = peroxisome proliferator-activated receptor-gamma coactivator 1, Drp1 = dynamin-related protein 1, ATP = adenosine triphosphate.</p>
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20 pages, 471 KiB  
Article
Enhancing Pro-Environmental Behavior Through Green HRM: Mediating Roles of Green Mindfulness and Knowledge Sharing for Sustainable Outcomes
by Yijing Li and Yannan Li
Sustainability 2025, 17(6), 2411; https://doi.org/10.3390/su17062411 - 10 Mar 2025
Viewed by 32
Abstract
This study investigates the impact of Green Human Resource Management (GHRM) practices on employees’ pro-environmental behaviors (PEBs) across multiple sectors in China, including production and manufacturing, real estate, financial services, and IT industries. Data were collected from 492 participants through online and offline [...] Read more.
This study investigates the impact of Green Human Resource Management (GHRM) practices on employees’ pro-environmental behaviors (PEBs) across multiple sectors in China, including production and manufacturing, real estate, financial services, and IT industries. Data were collected from 492 participants through online and offline surveys conducted between June and August 2024, ensuring a comprehensive and representative sample. The findings reveal that GHRM significantly enhances employees’ PEBs, with green mindfulness and knowledge sharing as critical mediating mechanisms. These mediators amplify the effectiveness of GHRM by fostering deeper environmental awareness and encouraging the exchange of eco-friendly practices among employees. By integrating GHRM with knowledge management processes, the study highlights how organizations can strategically leverage HR practices to strengthen their environmental performance and foster a culture of sustainability. By emphasizing the pivotal roles of green knowledge sharing and environmental awareness, this research underscores their significance in bridging the gap between organizational practices and sustainability outcomes. The insights derived contribute to advancing theoretical understanding and practical applications of green knowledge management and sustainability, offering a robust framework for businesses seeking to align their operations with global environmental goals. Full article
(This article belongs to the Special Issue Green Innovation and Knowledge Management in Organizations)
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<p>Research model.</p>
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13 pages, 1162 KiB  
Article
A Low Dietary Quality Index in a Newly Diagnosed Inflammatory Bowel Disease Cohort: Results from a Case—Control Study
by Ravi Misra, Lovesh Dyall, Janet Kyle, Heather Clark, Jimmy Limdi, Rachel Cooney, Matthew Brookes, Edward Fogden, Sanjeev Pattni, Naveen Sharma, Tariq Iqbal, Pia Munkholm, Johan Burisch and Naila Arebi
Nutrients 2025, 17(6), 958; https://doi.org/10.3390/nu17060958 - 10 Mar 2025
Viewed by 149
Abstract
Background: Epidemiological evidence suggests a link between the risk of IBD and diet. Macro- and micro- nutrient intake, diet quality and dietary patterns may play a pivotal role in disease pathogenesis. We aimed to study the dietary intake of newly diagnosed IBD patients [...] Read more.
Background: Epidemiological evidence suggests a link between the risk of IBD and diet. Macro- and micro- nutrient intake, diet quality and dietary patterns may play a pivotal role in disease pathogenesis. We aimed to study the dietary intake of newly diagnosed IBD patients compared to non-IBD controls. Methods: A cohort of newly diagnosed IBD patients were invited to complete the Scottish Collaborative Group Food Frequency Questionnaire (SCGFFQ) at their first clinic visit. Controls were recruited from non-IBD ambulatory patients, university students, and healthcare workers. The SCGFFQ estimates habitual diet over a 3-month period. Component nutrient data were calculated based on previous validation studies, deriving nutrient data by comparison of the SCGFFQ to actual weighted food records. Data on age, gender, ethnicity, and disease phenotype were collected. The intake of macro- and micro-nutrients was expressed as mean and standard deviation and compared using the Kruskal–Wallis test. Dietary patterns were derived using principal component analysis. Differences in the dietary patterns for age, gender, and ethnicity were analysed by logistic regression analysis. The diet quality was compared to the dietary recommendation values (DRVs) and measured using the diet quality index. Results: We enrolled 160 IBD cases (114 UC and 46 CD) and 126 non-IBD controls, and in the study, with a median age across the groups of 40 years (IQR = 24) for UC, 34 years (IQR = 29) for CD, and 36 years (IQR = 24) for non-IBD controls. The diet quality indexes for both UC and CD were low compared to controls: 59.0% (SD 18.0) for UC, 46.0% (SD 17.7) for CD, and 63.2% (SD 17.1) controls. UC patients had excessive total energy consumption (>2500 kcal/day) compared to the DRVs. UC patients reported higher retinol, vitamin D, riboflavin, niacin, vitamin B6, vitamin B12, and panthanoic acid intake, consistent with a diet rich in animal products and low in fruit/vegetable intake. This is likely driven by higher consumption of dietary patterns 2 (rich in carbohydrates, refined sugar and low fibre) and 5 (refined sugar and saturated fat) in the UC cohort. Dietary pattern 1 (variety of food items and oily fish) was less likely to be consumed by the CD population. CD patients tended to have a lower overall intake of both macro- and micro-nutrients. Conclusions: The dietary patterns identified here are a proof of concept, and the next phase of the study would be to ideally monitor these patterns in a case–control cohort prospectively, and to further understand the mechanisms behind which dietary patterns influence IBD. Patients with newly diagnosed CD have low dietary quality and lower overall intake of macro- and micro-nutrients. This finding supports the role for dietetic attention early in newly diagnosed CD. Full article
(This article belongs to the Section Nutritional Immunology)
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<p>Summary of the consumption of the dietary patterns within UC, CD, and controls. Comparison of the consumption of five dietary patterns between UC, CD, and controls. Count on y-axis refers to percentage frequency. Blue: 1st tertile, Orange: 2nd tertile, Green: 3rd tertile.</p>
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19 pages, 3348 KiB  
Article
Spatial Coupling Characteristics Between Tourism Point of Interest (POI) and Nighttime Light Data of the Changsha–Zhuzhou–Xiangtan Metropolitan Area, China
by Jiangzhou Wu, Qing Zhang and Zhida Li
Sustainability 2025, 17(6), 2391; https://doi.org/10.3390/su17062391 - 9 Mar 2025
Viewed by 367
Abstract
Metropolitan areas, as pivotal hubs for global tourism and economic growth, necessitate sustainable spatial planning to balance development with ecological preservation. As critical geospatial datasets, nighttime light (NTL) and point of interest (POI) data enable the robust analysis of urban structural patterns. Building [...] Read more.
Metropolitan areas, as pivotal hubs for global tourism and economic growth, necessitate sustainable spatial planning to balance development with ecological preservation. As critical geospatial datasets, nighttime light (NTL) and point of interest (POI) data enable the robust analysis of urban structural patterns. Building upon coupling coordination theory and polycentric spatial frameworks, this study investigates the spatial interdependencies between tourism POI and NTL data in China’s Changsha–Zhuzhou–Xiangtan Metropolitan Area (CZTMA). Key findings reveal high spatial coupling homogeneity, with three urban cores exhibiting radial value attenuation from city centers toward the tri-city intersection; concentric zonation patterns where NTL-dominant rings encircle high-coupling nuclei, contrasting with sporadic POI-intensive clusters in peri-urban towns; and sector-specific luminosity responses, where sightseeing infrastructure demonstrates the strongest localized NTL impacts through multiscale geographically weighted regression (MGWR). These findings establish a novel “data fusion-spatial coupling-governance” analytical framework and provide actionable insights for policymakers to harmonize tourism-driven urbanization with ecological resilience, contributing to United Nations Sustainable Development Goal (SDG) 11 (Sustainable Cities). Full article
(This article belongs to the Section Sustainable Urban and Rural Development)
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<p>The location of study area.</p>
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<p>Data collection and analysis process.</p>
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<p>Grid distribution map of tourism POI kernel density in CZTMA.</p>
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<p>Grid distribution map of NTL intensity in CZTMA.</p>
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<p>Map of the spatial coupling relationship between tourism POIs and NTL in CZTMA.</p>
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<p>Spatial distribution map of areas where the tourism POI kernel density value is lower than the NTL intensity value.</p>
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<p>Spatial distribution map of areas where the tourism POI kernel density value is lower than the NTL intensity value.</p>
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<p>The ideal location of the “Urban Central Park of CZTMA”.</p>
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17 pages, 279 KiB  
Review
Perioperative Drug Management of Systemic Therapies in Breast Cancer: A Literature Review and Treatment Recommendations
by Mariem Galuia, Julia Fedorova, Wassim McHayleh, Eleftherios Mamounas, Sarfraz Ahmad and Sabrina Pavri
Curr. Oncol. 2025, 32(3), 154; https://doi.org/10.3390/curroncol32030154 - 9 Mar 2025
Viewed by 312
Abstract
Breast cancer accounts for about 30% of all new female cancers each year, and its incidence is increasing 0.6% per year. An enhanced understanding of the molecular mechanisms of carcinogenesis has led to the development of constantly evolving strategies for local and systemic [...] Read more.
Breast cancer accounts for about 30% of all new female cancers each year, and its incidence is increasing 0.6% per year. An enhanced understanding of the molecular mechanisms of carcinogenesis has led to the development of constantly evolving strategies for local and systemic therapies. Perioperative chemotherapy, immunotherapy, and endocrine therapy play pivotal roles in the overall treatment plan. Guidelines on the appropriate use of these drugs in patients undergoing extirpative breast surgery and/or breast reconstruction are lacking. Clear indications for the management of systemic therapies relative to the timing of surgery is crucial to ensure consistent treatment outcomes and to minimize complications. Our purpose is to propose evidence-based recommendations to optimize the perioperative management of systemic therapies in patients undergoing breast cancer surgery and breast reconstructive surgery. In this review, we outline the basic tenets of breast cancer therapies, provide an overview on wound-healing principles, delineate relevant pharmacodynamic concepts, summarize literature and pharmacologic data from various preclinical studies and clinical trials, and propose treatment recommendations. Synopsis: This review proposes evidence-based recommendations regarding systemic therapies management for outcome optimization in the perioperative period in breast cancer patients. Full article
(This article belongs to the Special Issue Advances in Personalized Therapy for Breast Cancer)
21 pages, 8107 KiB  
Review
The Evolution of Unconventional Water Resources in the Hellenic World
by Andreas N. Angelakis, Antigoni Zafeirakou, Nektarios N. Kourgialas and Konstantinos Voudouris
Sustainability 2025, 17(6), 2388; https://doi.org/10.3390/su17062388 - 9 Mar 2025
Viewed by 329
Abstract
The water demand is increasing across all sectors, driven by intensive agriculture, overexploitation and urbanization, tourism, and industrial development. This trend is set to intensify in the context of climate variability, with an anticipated rise in the frequency and intensity of prolonged dry [...] Read more.
The water demand is increasing across all sectors, driven by intensive agriculture, overexploitation and urbanization, tourism, and industrial development. This trend is set to intensify in the context of climate variability, with an anticipated rise in the frequency and intensity of prolonged dry periods. As a result, conventional water resources, including surface and groundwater, are facing significant pressure and cannot meet the growing water needs. In contrast, unconventional (UWR) or non-conventional water resources, such as treated wastewater, salinized water, and rainwater harvesting are emerging as valuable and strategic resources and will play a pivotal role in the new era. Therefore, it is evident that the management of water resources must also include UWR to address the issue of water scarcity, with the ultimate goal of achieving a sustainable water future. This review aims to provide an overview of the currently and potentially available UWR in Greece. In addition to current trends and prospects, this study examines the utilization of unconventional resources in ancient Greek civilizations. The main conclusion is that in the context of the circular economy and the implementation of the Sustainable Development Goals (SDGs), the use of unconventional water resources is crucial for facing the problems that are emerging. Full article
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<p>The progression of desalination across the world from 1960 to 2025.</p>
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<p>The toilet of the Minoan Knossos in Cere: The left part of the figure provides an overall view (adapted from [<a href="#B22-sustainability-17-02388" class="html-bibr">22</a>]—photo by the author: A.N. Angelakis). The right part of the figure indicates vertical Section A of the ground-floor toilet (adapted from [<a href="#B21-sustainability-17-02388" class="html-bibr">21</a>]—schematic representation by the author: A.N. Angelakis).</p>
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<p>Water reuse in ancient times: (<b>a</b>) drainage systems within the palace of Phaistos and (<b>b</b>) downhill farmland irrigated and fertilized by the wastewater outflow (photos by the author: A.N. Angelakis).</p>
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<p>Sewers and drains in ancient Greece: (<b>a</b>) a drain and sewer in the Agora of ancient Athens and (<b>b</b>) a drain in the Agora of ancient Messene (photos by the author: A.N. Angelakis).</p>
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<p>The reuse of greywater: (<b>a</b>) reuse in a household and (<b>b</b>) greywater flushing system with gravity (photos by the author: A. Zafeirakou).</p>
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<p>Water supply system based on harvesting and storage systems. Palace sand filtered and storage cistern (photo by the author: A.N. Angelakis).</p>
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<p>The rainwater collection system at the temple of Aphaia in Aegina: (<b>a</b>) the temple (photo by the author: A.N. Angelakis), (<b>b</b>) a small section of the stone pipe used for harvesting rainwater, and (<b>c</b>) the rainwater storage cistern (photos by the author: K. Voudouris).</p>
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<p>Mycenae water supply system: (<b>a</b>) the subterranean reservoir and (<b>b</b>) surface water cistern (Permission of A. N. Angelakis).</p>
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<p>Water harvesting and storage in the ancient island Delos: (<b>a</b>) the cistern of the front of the ancient theater and (<b>b</b>) the water cistern close to the road with the lions (photos by the author: A. Zafeirakou).</p>
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<p>Roman-time cisterns: (<b>a</b>) an interior view of the three-aisled vaulted cistern of Aptera in western Crete (photo by A.N. Angelakis) and (<b>b</b>) the cistern of Hadrian in Athens, which were reconstructed in the 1880s, following the original designs (with permission from the copyright holder: G.P. Antoniou).</p>
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<p>Public rainwater harvesting and storage in Monemvasia: (<b>a</b>) the double-domed cistern at the upper town and (<b>b</b>) the interior cistern of the Katergo (with permission from the copyright holder G.P. Antoniou).</p>
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<p>Rainwater harvesting and storage in Mystras: (<b>a</b>) underground cistern and (<b>b</b>) water cistern outside of Agia Sofia church (photos by the author: A.N. Angelakis).</p>
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13 pages, 4116 KiB  
Article
Excited-State-Altering Ratiometric Fluorescent Probes for the Response of β-Galactosidase in Senescent Cells
by Ya-Nan Han, Lei Dong, Lu-Lu Sun, Wen-Jia Li, Jianjing Xie, Congyu Li, Shuhui Ren, Zhan Zhang, Hai-Hao Han and Zhong Zhang
Molecules 2025, 30(6), 1221; https://doi.org/10.3390/molecules30061221 - 8 Mar 2025
Viewed by 288
Abstract
β-galactosidase (β-Gal) has emerged as a pivotal biomarker for the comprehensive investigation of diseases associated with cellular senescence. The development of a fluorescent sensor is of considerable importance for precisely detecting the activity and spatial distribution of β-Gal. In [...] Read more.
β-galactosidase (β-Gal) has emerged as a pivotal biomarker for the comprehensive investigation of diseases associated with cellular senescence. The development of a fluorescent sensor is of considerable importance for precisely detecting the activity and spatial distribution of β-Gal. In this study, we developed two excited-state-altering responsive fluorescent sensors (TF1 and TF2) for ratiometric detection of β-Gal. Two TCF dyes, composed of tricyanofuran (TCF) and naphthol units, feature electron “pull–push” systems and are quenched fluorescence by β-Gal. Upon β-Gal hydrolysis, a significant ratiometric shift in absorption from ca. 475 nm to 630 nm is observed, accompanied by the emergence of a fluorescence signal at ca. 660 nm. The enzyme-responsive optical red-shifts are attributed to the excited-state transition from intramolecular charge transfer (ICT) state to local excited (LE) state, which was confirmed by density functional theory (DFT) calculations. Both fluorescent sensors display exceptional sensitivity and selectivity for the response of β-Gal in PBS solution and are capable of tracking β-Gal within senescent A549 cells. This study introduces a framework for developing multimodal optical probes by systematically modulating excited-state properties, demonstrating their utility in senescence studies, diagnostic assay design, and therapeutic assessment. Full article
(This article belongs to the Special Issue Fluorescent Probes in Biomedical Detection and Imaging)
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<p>(<b>a</b>) <span class="html-italic">β</span>-Gal-responded fluorescent probes provide ratiometric optical signal by excited-state altering from ICT to LE states. (<b>b</b>) Structures of TCF-based fluorescent probes (<b>TF1</b> and <b>TF2</b>).</p>
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<p>Molar extinction coefficient (<span class="html-italic">ε</span>, dash line) and normalized fluorescence (line) of (<b>a</b>) <b>TF1</b> and (<b>b</b>) <b>TF2</b> (10 μM) incubated without (blue) or with <span class="html-italic">β</span>-Gal (red, 4 U mL<sup>−1</sup>) at 37 °C for 1 h. Inset: Sample photos of probe alone (left) and probe incubated with <span class="html-italic">β</span>-Gal (right, 4 U mL<sup>−1</sup>). Molar extinction coeffcient (<span class="html-italic">ε</span>, solid line) and normalized fluorescence (dashed line) of residues from <span class="html-italic">β</span>-Gal-cut (<b>c</b>) <b>TF1</b> and (<b>d</b>) <b>TF2</b> (10 μM) after adding with (green, <b>TF-OH</b>) or without (red, <b>TF-O</b>) trifluoroacetic acid (50 μL). (<b>e</b>) Relative absorption of samples of <span class="html-italic">β</span>-Gal-cut <b>TF1</b> with addition of trifluoroacetic acid (50 μL, interval 10 μL). (<b>f</b>) Relative absorption variation of <b>TF1-OH</b> in 10% DMSO-mixed PBS buffer with different pH values (3–8).</p>
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<p>Calculated natural transition orbitals (NTOs) of <b>TF1</b>, <b>TF2</b>, <b>TF1-OH</b>, <b>TF2-OH</b>, <b>TF1-O</b> and <b>TF2-O</b> using density functional theory at the PBE1PBE/6-31G* level of theory in the gas phase.</p>
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<p>Plotting the relative fluorescence changes of (<b>a</b>) <b>TF1</b> and (<b>b</b>) <b>TF2</b> (10 μM) incubated with <span class="html-italic">β</span>-Gal (4 U mL<sup>−1</sup>) as a function of time. Relative fluorescence changes of (<b>c</b>) <b>TF1</b> and (<b>d</b>) <b>TF2</b> (10 μM) incubated with <span class="html-italic">β</span>-Gal (4 U mL<sup>−1</sup>) and other analytes for 25 min. [a: blank, b: H<sub>2</sub>O<sub>2</sub>, c: NaClO, d: Hcy, e: Cys, f: GSH, (a–f, 200 μM), g: DNA, h: BSA, i: cellose (g–i, 200 μg mL<sup>−1</sup>), j: <span class="html-italic">β</span>-glucosidase (4 U mL<sup>−1</sup>)]. Fluorescence spectra of (<b>e</b>) <b>TF1</b> and (<b>f</b>) <b>TF2</b> (10 μM) incubated with different concentrations of <span class="html-italic">β</span>-Gal (0–4 U mL<sup>−1</sup>). Plotting the <span class="html-italic">I</span>/<span class="html-italic">I</span><sub>0</sub> of (<b>g</b>) <b>TF1</b> and (<b>h</b>) <b>TF2</b> (10 μM) incubated with different concentrations of <span class="html-italic">β</span>-Gal (0–4 U mL<sup>−1</sup>), inset: fitted <span class="html-italic">I</span>/<span class="html-italic">I</span><sub>0</sub> curve of <b>TF1</b> incubated with a low concentration of <span class="html-italic">β</span>-Gal (0–0.5 U mL<sup>−1</sup>). <span class="html-italic">I</span> and <span class="html-italic">I</span><sub>0</sub> are the fluorescence intensity of probes in the presence and absence of <span class="html-italic">β</span>-Gal. All fluorescence spectra were excited at 570 nm and measured at 37 °C in PBS (pH 7.4) mixed with 10% DMSO.</p>
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<p>Fluorescence imaging of normal and senescent A549 cells incubated with (<b>a</b>) <b>TF1</b> and (<b>b</b>) <b>TF2</b> (10 μM) for 4 h. (<b>c</b>) Fluorescence quantification of normal (blue) and senescent (red) A549 cells incubated with <b>TF1</b> and <b>TF2</b> (10 μM) for 4 h. Fluorescence co-localization of (<b>d</b>) <b>TF1</b> and (<b>e</b>) <b>TF2</b> (10 μM) with LysoTracker (a lysosome tracker, 75 nM), MitoTracker (a mitochondria tracker, 75 nM)), and ERTracker (an endoplasmic reticulum tracker, 75 nM). Excitation and emission wavelength of <b>TF</b>s were 640 nm and 650–700 nm, respectively. Error bars represent the S.D. *** <span class="html-italic">p</span> &lt; 0.001; <span class="html-italic">n</span> = 3.</p>
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13 pages, 963 KiB  
Article
Responsiveness to the Context: Information–Task–Situation Decisional Strategies and Electrophysiological Correlates
by Angelica Daffinà, Carlotta Acconito and Michela Balconi
Appl. Sci. 2025, 15(6), 2941; https://doi.org/10.3390/app15062941 - 8 Mar 2025
Viewed by 275
Abstract
Decision-making, defined as a cognitive process involving the selection of a course of action among several alternatives, is pivotal in personal and professional life and is founded on responsiveness to the context of decisional strategies—in terms of pieces of contextual features collected, evaluated, [...] Read more.
Decision-making, defined as a cognitive process involving the selection of a course of action among several alternatives, is pivotal in personal and professional life and is founded on responsiveness to the context of decisional strategies—in terms of pieces of contextual features collected, evaluated, and integrated. This study explored the behavioral and electrophysiological (EEG) correlates of individual tendencies to rely on three distinct decisional strategies: Information (I-ds), Situation (S-ds), or Task (T-ds). A total of 51 individuals performed a decision-making task that required participants to face real-life decision-making situations, during which an unexpected event prompted them to appraise the situation and rely on different sources of contextual features to make the best decision and manage the problem. The behavioral data and EEG frequency bands (delta, theta, alpha, beta, and gamma) were collected during the decision-making task. The results evidenced a general predisposition to adopt a T-ds. In addition, EEG findings reported a higher increase in theta band power in the right frontal area (AF8) compared to the left temporoparietal site (TP9). Moreover, for the gamma band, higher activity was found in the T-ds compared to the I-ds in AF8. Overall, responsiveness to the context was closely linked to the assignment’s requirements. Additionally, adopting a T-ds requires high levels of multilevel attention control systems and a significant workload on human performance. Nevertheless, the T-ds remain the most employed type of responsiveness to the context approach, when compared to situational and contextual aspects. Full article
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<p>Behavioral results. The bar chart shows significant differences in Strategy, with higher scores in S-ds compared to I-ds and in T-ds compared to I-ds and S-ds. Bars represent ±1 Standard Error and stars (*) mark statistically significant comparisons.</p>
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<p>EEG results: theta band. The bar chart shows significant differences for the theta band in Electrodes, with higher activity in AF8 compared to TP9. Bars represent ±1 Standard Error and stars (*) mark statistically significant comparisons. The more intense color in the rendering of the head (on the right) represents the increase in EEG power at specific EEG electrodes.</p>
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<p>EEG results: gamma band. The bar chart shows significant differences for the gamma band in Strategy × Electrodes, with higher activity in T-ds compared to I-ds in AF8. Bars represent ±1 standard error and stars (*) mark statistically significant comparisons. The more intense color in the rendering of the head (below) represents the increase in EEG power at the specific EEG electrode for each strategy.</p>
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14 pages, 4158 KiB  
Article
Vis/NIR Spectroscopy and Chemometrics for Non-Destructive Estimation of Chlorophyll Content in Different Plant Leaves
by Qiang Huang, Meihua Yang, Liao Ouyang, Zimiao Wang and Jiayao Lin
Sensors 2025, 25(6), 1673; https://doi.org/10.3390/s25061673 - 8 Mar 2025
Viewed by 76
Abstract
Vegetation biochemical and biophysical variables, especially chlorophyll content, are pivotal indicators for assessing drought’s impact on plants. Chlorophyll, crucial for photosynthesis, ultimately influences crop productivity. This study evaluates the mean squared Euclidean distance (MSD) method, traditionally applied in soil analysis, for estimating chlorophyll [...] Read more.
Vegetation biochemical and biophysical variables, especially chlorophyll content, are pivotal indicators for assessing drought’s impact on plants. Chlorophyll, crucial for photosynthesis, ultimately influences crop productivity. This study evaluates the mean squared Euclidean distance (MSD) method, traditionally applied in soil analysis, for estimating chlorophyll content in five diverse leaf types across various months using visible/near-infrared (vis/NIR) spectral reflectance. The MSD method serves as a tool for selecting a representative calibration dataset. By integrating MSD with partial least squares regression (PLSR) and the Cubist model, we aim to accurately predict chlorophyll content, focusing on key spectral bands within the ranges of 500–640 nm and 740–1100 nm. In the validation dataset, PLSR achieved a high determination coefficient (R2) of 0.70 and a low mean bias error (MBE) of 0.04 mg g−1. The Cubist model performed even better, demonstrating an R2 of 0.77 and an exceptionally low MBE of 0.01 mg g−1. These results indicate that the MSD method serves as a tool for selecting a representative calibration dataset in leaves, and vis/NIR spectrometry combined with the MSD method is a promising alternative to traditional methods for quantifying chlorophyll content in various leaf types over various months. The technique is non-destructive, rapid, and consistent, making it an invaluable tool for assessing drought impacts on plant health and productivity. Full article
(This article belongs to the Section Smart Agriculture)
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<p>The leaves of the plants.</p>
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<p>The location of sampling (<b>A</b>) and the spectra instrument (<b>B</b>).</p>
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<p>The reflectance of five plants.</p>
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<p>The density of the first six principal components of the vis/NIR leaf data in the subset (60, 100, …, 260) and the validation set (<b>A</b>), along with the mean squared Euclidean distance (MSD) between the probability density functions of the selected subset and the validation set, were analyzed (<b>B</b>).</p>
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<p>The convex hulls and their centroids plotted in the principal component (PC) space from five different plants.</p>
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<p>Scatterplots depict the relationship between measured and predicted chlorophyll content using two models: the partial least squares regression (PLSR) (<b>A</b>) and the Cubist model (<b>B</b>). The dashed line represents the 1:1 line.</p>
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<p>The coefficients of the partial least squares regression (PLSR) model (<b>A</b>) and the Cubist model (<b>B</b>) are depicted. In model A, the dashed line indicates wavelengths with values exceeding 1, highlighting their significance in the PLSR model.</p>
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<p>The variations in chlorophyll content across leaves from five different species were monitored over several months. The data presented are the averages of the outcomes measured by the PLSR and Cubist models. These predicted results for each treatment are expressed as the mean ± standard error (SE), the black point shows the mean value.</p>
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17 pages, 3023 KiB  
Systematic Review
Accuracy of Artificial Intelligence Models in Detecting Peri-Implant Bone Loss: A Systematic Review
by Maryam H. Mugri
Diagnostics 2025, 15(6), 655; https://doi.org/10.3390/diagnostics15060655 - 7 Mar 2025
Viewed by 242
Abstract
Background and Objectives: AI is considered one of the most innovative technologies of this century. Its introduction into healthcare has transformed the industry, significantly impacting various aspects such as education, teaching, diagnosis, treatment planning, and patient care. Researchers have tested the accuracy of [...] Read more.
Background and Objectives: AI is considered one of the most innovative technologies of this century. Its introduction into healthcare has transformed the industry, significantly impacting various aspects such as education, teaching, diagnosis, treatment planning, and patient care. Researchers have tested the accuracy of various generations of AI models for detecting peri-implant bone loss using radiographic images. While studies have reported promising outcomes, there remains significant potential for improving these models. This systematic review aims to critically analyze the existing published literature on the accuracy of AI models in detecting peri-implant bone loss and to evaluate the current state of knowledge in this area. Methods: The guidelines established by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) were pivotal and provided a framework for preparing, implementing, and recording this systematic review. The protocol for this review was registered in PROSPERO. Four electronic databases (PubMed, Scopus, Web of Science, and Cochrane) were diligently searched on 5–6 January 2025, targeting articles published between January 2000 and December 2024. The PIRD elements (population, index test, reference test, diagnosis of interest) that helped in structuring the protocol of the present review were: P: X-ray images of humans demonstrating the bone loss around the dental implant; I: Artificial intelligence models used for detecting radiographic peri-implant bone loss; R: Expert opinions and reference standards; D: Radiographic peri-implant bone loss. The Quality Assessment and Diagnostic Accuracy Tool (QUADAS-2) was used to assess the quality of each included study. Results: Seven studies met the selection criteria and were included in the qualitative analysis. A self-designed table was used to tabulate all the relevant study characteristics. The included studies were reported to have a moderate level of certainty of evidence as assessed by the GRADE assessment. In general, all studies included in this review demonstrated a low risk of bias. Overall accuracy of the AI models varied and ranged between 61% and 94.74%. The precision values ranged from 0.63% to 100%. Whereas sensitivity and specificity values range between 67% and 94.44%, and 87% and 100%, respectively. Conclusions: The present systematic review highlights that AI models demonstrate high accuracy in detecting peri-implant bone loss using dento-maxillofacial radiographic images. Thus, AI models can serve as effective tools for the practicing dentist in confirming the diagnosis of peri-implant bone loss, ultimately aiding in accurate treatment planning and improving treatment outcomes. Full article
(This article belongs to the Section Machine Learning and Artificial Intelligence in Diagnostics)
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<p>PRISMA 2020 flow diagram depicting the search strategy.</p>
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<p>Country-wise distribution of the studies.</p>
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<p>Quality assessment of the individual risk of bias domains and applicability using QUADAS-2 tool.</p>
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20 pages, 5835 KiB  
Article
The Early Sex-Specific Expression of the Fruitless Gene in the Asian Tiger Mosquito Aedes albopictus (Skuse) and Its Functional Conservation in Male Courtship
by Marianna Varone, Paola Di Lillo, Katerina Nikolouli, Ayca Eda Özel, Francesca Lucibelli, Gennaro Volpe, Sarah Maria Mazzucchiello, Angela Carfora, Serena Aceto, Giuseppe Saccone, Kostas Bourtzis and Marco Salvemini
Insects 2025, 16(3), 280; https://doi.org/10.3390/insects16030280 - 7 Mar 2025
Viewed by 244
Abstract
The Asian tiger mosquito, Aedes albopictus, is an invasive species and a vector for several significant human pathogens. Gaining a deeper understanding of its reproductive biology offers valuable insights into its evolutionary success and may inform the development of sustainable strategies to [...] Read more.
The Asian tiger mosquito, Aedes albopictus, is an invasive species and a vector for several significant human pathogens. Gaining a deeper understanding of its reproductive biology offers valuable insights into its evolutionary success and may inform the development of sustainable strategies to control its spread. This study presents a comprehensive structural and functional characterization of the fruitless gene in Ae. albopictus (Aalfru), a pivotal regulator of sexual behavior in insects. Through in silico analysis combined with molecular and functional genetics approaches, we identified a high degree of conservation in the fru gene structure and its regulation via sex-specific alternative splicing. Differently from Drosophila, Aedes aegypti, and other dipteran fruitless orthologs, Aalfru sex-specific regulation starts in 1-day-old embryos, rather than the late larval stage. Functional analysis using embryonic RNA interference (RNAi) demonstrated that, Ae. albopictus males with transiently disrupted fru expression at the embryonic stage showed significant deficits in adult mating behavior and failed to produce viable progeny. Our findings elucidate the Aalfru gene’s molecular organization, developmental regulation, and critical role in courtship behavior, highlighting its importance in male sexual behavior and reproductive success in Ae. albopictus. Full article
(This article belongs to the Special Issue Research on Insect Molecular Biology)
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<p>The <span class="html-italic">Aalfru</span> gene structure. (<b>A</b>) Schematic representation of the <span class="html-italic">fru</span> gene in <span class="html-italic">Ae. albopictus</span> (introns not to scale). In purple, are the exons belonging to the predicted AALF007440 gene of the <span class="html-italic">Ae. albopictus</span> AaloF1 reference genome. The translational start (ATG) and stop (TGA, TAA) sites are indicated. The exons C1 and C2 encode for the BTB domain; the exons C3, C4, and C5 encode for the connecting region; the terminal exons Znf-A, Znf-B, and Znf-C encode for the type A, B, and C zinc finger domains, respectively. The sex-specific region is divided into two sub-regions: male- (M in blue) and female-specific (F in pink) portions, which are alternatively spliced according to sex. (<b>B</b>) The RT-PCR amplification with <span class="html-italic">Aalrp49</span> and <span class="html-italic">AalNix</span> positive controls. The first lane left is a 100-bp ladder (NEB). The <span class="html-italic">Aalrp49</span> primer pairs span a 113-bp long intron of the <span class="html-italic">rp49</span> gene (genomic amplicon size 467 bp; cDNA amplicon 354 bp). The <span class="html-italic">Nix</span> gene is a male-specific positive control. (<b>C</b>) The RT-PCR amplifications of <span class="html-italic">Aalfru</span> sex-specific and common cDNA fragments on sexed adult <span class="html-italic">Ae. albopictus</span> mosquitoes. The first lane left is the High Range ladder (NEB). (<b>D</b>) RT-PCR amplifications of <span class="html-italic">Aalfru</span> terminal cDNA fragments encoding for zinc finger domains on sexed adult <span class="html-italic">Ae. albopictus</span> mosquitoes. The first lane on the left is a 100-bp ladder. Primers used in the PCR amplifications of (<b>B</b>–<b>D</b>) panels are indicated as short black arrows in (<b>A</b>).</p>
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<p>The sequence alignment of the FRU protein isoforms of <span class="html-italic">D. melanogaster</span>, <span class="html-italic">An. gambiae</span>, <span class="html-italic">Ae. aegypti</span>, and <span class="html-italic">Ae. albopictus</span>. The conserved BTB domain and zinc finger domains are boxed in grey. The bold letters indicate amino acid identity among at least two species. The intron positions are indicated by solid triangles and the position of the alternative splicing site is indicated by AS white triangles. Gaps were introduced in the alignments to maximize similarity. The sequences are divided into (<b>A</b>) male-specific N-terminal portion encoded by P1 transcript; (<b>B</b>) common portion of the gene including the BTB domain, the connector region, and the zinc finger type C domain; and (<b>C</b>) putative in silico identified zinc finger of type A and B domains of <span class="html-italic">Ae. albopictus</span> aligned with the homologous domains of <span class="html-italic">D. melanogaster</span>, <span class="html-italic">An. gambiae</span>, and <span class="html-italic">Ae. aegypti</span>.</p>
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<p>The developmental and spatial expression analyses of the <span class="html-italic">fru</span> gene in <span class="html-italic">Ae. albopictus</span>. (<b>A</b>) The first lane left of each panel is a High-Range ladder or 100-bp ladder (NEB). RT-PCR amplifications of <span class="html-italic">Aalfru</span> were performed with M2+/C3− primer pair (for sex-specific adult isoforms) on the following sexed samples: E = 0–24 h embryos; L<sub>I</sub> = first instar larvae; L<sub>II</sub> = second instar larvae; L<sub>III</sub> = third instar larvae L<sub>IV</sub> = fourth instar larvae; P = pupae; and A= adults. The <span class="html-italic">Aalrp49</span> and <span class="html-italic">AalNix</span> were used as a positive control and male-specific control, respectively. (<b>B</b>,<b>C</b>) The tissue-specific transcription profile of <span class="html-italic">Aalfru</span> in males and females. The spatial transcription on male and female antennae, heads, and carcasses (minus heads) sampled by qRT-PCR. The x-axis indicates the sample ID and the y-axis shows the relative expression value obtained by qRT-PCR. The internal reference gene was the <span class="html-italic">Ae. albopictus</span> ribosomal protein 49 (<span class="html-italic">Aalrp49</span>). (<b>B</b>) The error bars represent the SEM (N = 10) (one-way ANOVA test, <span class="html-italic">p</span>-Value &lt;0.0001). Tukey post hoc test: ‘a’ vs. ‘c’ and ‘a’ vs. ‘b’ &lt;0.0001; ‘b’ vs. ‘c’ 0,0009); (<b>C</b>) The error bars represent the SEM (one-way ANOVA test, <span class="html-italic">p</span>-Value &lt;0.0001). Tukey post hoc test: ‘a’ vs. ‘b’ and ‘a’ vs. ‘c’ &lt;0.0001; ‘a’ vs. ‘c’ 0,0482).</p>
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<p>A comparative scheme of <span class="html-italic">D. melanogaster</span>, <span class="html-italic">An. gambiae</span>, <span class="html-italic">Ae. Aegypti</span>, and <span class="html-italic">Ae. albopictus</span> gene structures. (<b>A</b>) The portions of <span class="html-italic">fru</span> genes, starting with the sex-specific regulated region and ending with the ZnF-C domain encoding exon, are reported. The male-specific and female-specific exons are represented as blue and pink boxes, respectively. The green boxes represent the non-sex-specific exons encoding the BTB domain and the black boxes represent the connector region of FRU proteins. The terminal grey boxes represent the ZnF-C domain encoding exons. The white sequences represent TRA/TRA-2 binding sites. The <span class="html-italic">Ae. albopictus fru</span> gene is located in supercontigs JXUM01S001695 and JXUM01S000018 of the AaloF1 reference genome and on chromosome 1 of the AalbF5 genome assembly (GCF_035046485.1). (<b>B</b>)The <span class="html-italic">fru-P1</span> sex-specific region. The azure sequence indicates the male-specific exon; the purple sequence indicates the female-specific exon. The red are the predicted splicing donor sites. The blue are the P1m 5′ss and P1f 5′ss MAXENT scores. The yellow are the putative TRA/TRA-2 binding sites. (<b>C</b>) The WebLogo consensus sequence of the putative TRA/TRA-2 binding sites identified in <span class="html-italic">dsx</span> and <span class="html-italic">fru</span> genes of Dipteran Brachycera and Nematocera species. Within Nematocera, only in the <span class="html-italic">P. perniciosus</span> sand fly species it is possible to define a clear TRA/TRA-2 binding sites consensus sequence.</p>
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<p>The RNAi knockdown analysis of the <span class="html-italic">fru</span> gene in <span class="html-italic">Ae. albopictus</span>. (<b>A</b>) The schematic representation of the RNAi knockdown analysis. The first lane left is a 100 bp ladder (NEB). The 133 bp long dsRNA synthesized in vitro, targets the M exon of the sex-specifically regulated <span class="html-italic">Aalfru</span> gene. This region is present in both the male- and female-specific <span class="html-italic">Aalfru</span> transcripts. (<b>B</b>) The expression level of the <span class="html-italic">Ae. albopictus fru</span> gene in larvae subjected to <span class="html-italic">AalfruM</span> interference at the embryonic stage. The larvae were analyzed as single specimens or as a pool of two or three larvae, at the third instar larval stage. The x-axis indicates the sample ID and the y-axis shows the relative expression value obtained by qRT-PCR. The internal reference gene was the <span class="html-italic">Ae. albopictus</span> ribosomal protein 49 (<span class="html-italic">Aalrp49</span>). The error bars represent the SEM. One-way ANOVA was used to assess differences among the control group and RNAi groups (<span class="html-italic">p</span>-Value &lt; 0.0001), Dunnett’s multiple comparisons test: ‘a’ vs. ‘b’ &lt;0.0001. Eight wild-type males, four males developed from embryos injected with GFP dsRNA, and eight males developed from embryos injected with <span class="html-italic">AalfruM</span> dsRNA were individually crossed with five wild-type females, resulting in a total of twenty mating experiments (<a href="#insects-16-00280-f006" class="html-fig">Figure 6</a>A). Before cross set-up, all males were visually inspected under a stereomicroscope for abnormalities in sexual phenotypes, including antennae structure, body size, and genitalia. No notable physical abnormalities were observed. To evaluate the effects of the <span class="html-italic">Aalfru</span> knockdown on male sexual behavior, we conducted mating assays by observing the formation of mating pairs within each cage and recording the duration of copulation (<a href="#insects-16-00280-f006" class="html-fig">Figure 6</a>C). A significant difference in mating duration was noted between control males (wild-type and GFP dsRNA-injected) and <span class="html-italic">Aalfru</span>-knockdown males when paired with wild-type virgin females. The mating time for <span class="html-italic">Aalfru</span>-knockdown males was substantially reduced, averaging approximately 3 s, compared to an average duration of 20 s for the wild-type and GFP control males (<a href="#insects-16-00280-f006" class="html-fig">Figure 6</a>C). These results suggest that the suppression of <span class="html-italic">Aalfru</span> expression profoundly impacts male sexual behavior, likely impairing their ability to sustain normal mating interactions. This highlights the role of <span class="html-italic">Aalfru</span> in regulating the key aspects of male reproductive behavior in <span class="html-italic">Ae. albopictus</span>.</p>
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<p>The mating, fecundity, and feeding assays of the RNAi-knockdown <span class="html-italic">fru</span> males. (<b>A</b>) The mating and fecundity assay schematic. (<b>B</b>) The feeding assay schematic. (<b>C</b>) The mating time for the three types of crosses is indicated in the A panel. The one-way ANOVA test, <span class="html-italic">p</span>-Value &lt; 0.0001. Dunnett’s multiple comparisons test: ‘a’ vs. ‘b’ &lt; 0.0001. (<b>D</b>) The egg numbers for the three types of crosses as indicated in the A panel. The one-way ANOVA test, <span class="html-italic">p</span>-Value 0.0004. Dunnett’s multiple comparisons test: ‘a’ vs. ‘b’ &lt; 0.0001. The different letters above bars (’a’ vs. ’b’) mean significant differences between the different groups. (<b>E</b>) The scatter dot plot shows the number of mosquitoes that fed on sucrose or blood in different groups: wild-type male and female (WT M, WT F), <span class="html-italic">GFP</span>, and <span class="html-italic">fru</span> males (<span class="html-italic">GFP</span> M, <span class="html-italic">fru</span> M). Each dot represents an individual cross. The horizontal bars indicate the mean ± standard error of the mean (SEM). N represents the number of crosses (panel A) observed for each group.</p>
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21 pages, 2977 KiB  
Article
From Command-Control to Lifecycle Regulation: Balancing Innovation and Safety in China’s Pharmaceutical Legislation
by Jing Zhang, Shuchen Tang and Pengqing Sun
Healthcare 2025, 13(6), 588; https://doi.org/10.3390/healthcare13060588 - 7 Mar 2025
Viewed by 189
Abstract
Background: China’s pharmaceutical regulatory framework is undergoing a pivotal shift from a traditional “command-control” model to a “lifecycle regulation” approach, aiming to balance drug safety, innovation, and accessibility. This study systematically examines the evolution, achievements, and challenges of China’s regulatory reforms, offering insights [...] Read more.
Background: China’s pharmaceutical regulatory framework is undergoing a pivotal shift from a traditional “command-control” model to a “lifecycle regulation” approach, aiming to balance drug safety, innovation, and accessibility. This study systematically examines the evolution, achievements, and challenges of China’s regulatory reforms, offering insights for global pharmaceutical governance. Methods: Using a mixed-methods approach integrating historical analysis, policy text mining, and case studies, we reviewed the pharmaceutical laws and regulations enacted since 1949, supplemented by case studies (e.g., COVID-19 vaccine emergency approvals) and a comparative analysis with international models (e.g., U.S. FDA and EU EMA frameworks). The data were sourced from authoritative platforms such as the PKULAW database, criminal law amendments, and international regulatory texts. Results: China’s regulatory evolution is categorized into four phases: Emergence (1949–1984), Foundational (1985–2000), Deepening Reform (2001–2018), and Lifecycle Regulation (2019–present). The revised Drug Administration Law (2019) institutionalized risk management, dynamic GMP inspections, and post-market surveillance, marking a transition to holistic lifecycle oversight. Key milestones include the introduction of the Vaccine Management Law (2019) and stricter penalties under the Criminal Law Amendment (XI) (2020). Conclusions: China’s lifecycle regulation model demonstrates potential to harmonize safety and innovation, evidenced by improved API export compliance (e.g., 15% increase in international certifications by 2023) and accelerated approvals for breakthrough therapies (e.g., domestically developed PD-1 inhibitors). However, challenges persist, including uneven enforcement capacities, tensions between conditional approvals and risk mitigation, and reliance on global supply chains. These findings provide critical lessons for developing countries navigating similar regulatory dilemmas. Full article
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<p>Number of laws and regulations introduced in different stages.</p>
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<p>Statistical overview of legal and regulatory documents across different stages.</p>
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<p>Timeline of legislation during the Emergence stage.</p>
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<p>Timeline of legislation during the Foundational stage.</p>
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<p>Timeline of legislation during the Deepening Reform stage.</p>
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<p>Timeline of legislation during the full Lifecycle Regulation stage.</p>
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