Abstract
The aim of this study was to assess the behaviour of insulin sensitivity and insulin resistance (IR) indexes in a group of obese adolescents with Type 2 diabetes mellitus (T2DM) in comparison to obese adolescents without diabetes and normal controls, moreover to compare these parameters with the cardiac autonomic pattern. Seven T2DM obese (12.7±0.5 yr), 18 obese without T2DM, and 10 nonobese control adolescents age matched were studied. In all subjects we performed oral glucose tolerance test (OGTT) with insulin and glucose determination, 24-h electrocardiogram Holter, blood pressure monitoring, ecoho-cardiogram. Results: serum lipids were significantly higher in obese and T2DM. Insulin sensitivity was significantly reduced in T2DM and obese vs controls; T2DM showed a more pronounced oral glucose insulin sensitivity (OGIS) reduction vs obese. Both obese and T2DM presented an higher IR. T2DM showed an impaired β-cell function, with insulin areas under the curve and disposition index significantly reduced in comparison to controls and obese who showed similar values. A progressive reduction of vagal indexes and an increase of sympathetic indexes were found in obese adolescents and were more pronounced in T2DM. These parameters were correlated with OGIS and β-cell function parameters in both obese and T2DM adolescents. T2DM showed a significant relative wall thickness increase suggesting a trend toward concentric remodeling. In conclusion, T2DM adolescents are characterized by a more marked IR reduced β-cell function in comparison to non-diabetic obese. These modifications may lead to an early impairment of the autonomic pattern.
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Imperatore G. Childhood obesity: is it time of action? Nutr Matab Cardiovasc Dis 2006, 16: 235–8.
Bloomgarden ZT. Type 2 Diabetes in the young: the evolving epidemic. Diabetes Care 2004, 27: 998–1010.
McQuaid S, O’Gorman DJ, Yousif O, et al. Early onset insulin resistant diabetes in obese Caucasians has features of typical type 2 diabetes, but 3 decades earlier. Diabetes Care 2005, 28: 1216–8.
American Diabetes Association. Type 2 Diabetes in children and adolescents. Pediatrics 2000, 105: 671–80.
Weiss R, Kaufman FR. Metabolic complications of childhood obesity. Diabetes Care 2008, 31: S310–6.
Yeckel CW, Taksali SE, Dziura J, et al. The normal glucose tolerance continuum in obese youth: evidence for impairment in β-cell function independent of insulin resistance. J Clin Endocrinol Metab 2005, 90: 747–54.
Grassi G, Dell’Oro R, Quarti-Trevano F, et al. Neuroadrenergic and reflex abnormalities in patients with metabolic syndrome. Diabetologia 2005, 48: 1359–65.
The Expert Committee on the Diagnosis and Classification of Diabetes Mellitus. Report of the Expert Committee on the Diagnosis and Classification of Diabetes Mellitus. Diabetes Care 1999, 22: S5–19.
Pacini G, Mari A. Methods for clinical assessment of insulin sensitivity and beta-cell function. Best Pract Research Clin Endocrinol Metab 2003, 17: 305–22.
Mari A, Pacini G, Murphy E, Ludvik B, Nolan JJ. A model-based method for assessment of insulin sensitivity from the oral glucose tolerance test. Diabetes Care 2001, 24: 539–48.
Abdul-Ghani MA, Jenkinson CP, Richardson DK, Tripathy D, DeFronzo RA. nsulin secretion and action in subjects with impaired fasting glucose and impaired glucose tolerance: results from the Veterans Administration Genetic Epidemiology Study. Diabetes 2006, 55: 1430–5.
Ahrén B, Pacini G. Importance of quantifying insulin secretion in relation to insulin sensitivity to accurately assess beta cell function in clinical studies. Eur J Endocrinol 2004, 150: 97–104.
National High Blood Pressure Education Program Working Group on High Blood Pressure in Children and Adolescents. The fourth report on the diagnosis, evaluation, and treatment of high blood pressure in children and adolescents. Pediatrics 2004, 114: 555–76.
Berntson GG, Quigley KS, Jang JF, Boysen ST. An approch to artifact identification: application to heart period data. Psychophysiology 1990, 27: 586–98.
Task Force of the European Society of Cardiology and the North American Society of pacing and Electrophysiology. Heart rate variability: standards of measurement, physiological interpretation and clinical use. Circulation 1996, 93: 1043–65.
von Neumann J, Kent RH, Bellinson HR, Hart BI. The mean square successive difference. Ann Math Stat 1941, 12: 153–62.
Sahn DJ, DeMaria A, Kisslo J, Weyman A. Recommendations regarding quantitation in M-mode echocardiography: results of a survey of echocardiographic measurements. Circulation 1978, 58: 1072–83.
Sinha R, Fish G, Teague B, et al. Prevalence of impaired glucose tolerance among children and adolescents with marked obesity. N Engl J Med 2002, 346: 802–10.
Invitti C, Guzzaloni G, Gilardini L, Morabito F, Viberti G. Prevalence and concomitants of glucose intolerance in European obese children and adolescents. Diabetes Care 2003, 26: 118–24.
Cerutti F, Sacchetti C, Bessone A, Rabbone I, Cavallo-Perin P, Pacini G. Insulin secretion and hepatic insulin clearance as determinants of hyperinsulinaemia in normotolerant grossly obese adolescents. Acta Paediatr 1998, 87: 1045–50.
Gastaldelli A, Ferrannini E, Miyazaki Y, Matsuda M, DeFronzo RA. β-cell dysfunction and glucose intolerance: results from the San Antonio metabolism (SAM) study. Diabetologia 2004, 47: 31–9.
Arslanian SA, Bacha F, Saad R, Gungor N. Family history of type 2 diabetes is associated with decreased insulin sensitivity and an impaired balance between insulin sensitivity and insulin secretion in white youth. Diabetes Care 2005, 28: 127–31.
Weiss R, Dziura JD, Burgert TS, Taksali SE, Tamborlane WV, Caprio S. Ethnic differences in beta cell adaptation to insulin resistance in obese children and adolescents. Diabetologia 2006, 49: 571–9.
Esler M, Straznicky N, Eikelis N, Masuo K, Lambert C, Lambert E. Mechanisms of sympathetic activation in obesity-related hypertension. Hypertension 2006, 48: 787–96.
Rabbia F, Silke B, Conterno A, Grosso T, De Vito B, Rabbone I et al. Assessment of cardiac autonomic modulation during adolescent obesity. Obes Res 2003, 11: 541–8.
Lucini D, Cusumano G, Bellia A, et al; for the Linosa Study Group. Is reduced baroreflex gain a component of the metabolic syndrome? Insights from the LINOSA study. J Hypertens 2006, 24: 361–70.
Singh JP, Larson MG, Tsuji H, Evans JC, O’Donnell CJ, Levy D. Reduced heart rate variability and new-onset hypertension: insights into pathogenesis of hypertension: the Framingham Heart Study. Hypertension 1998, 32: 293–7.
La Rovere MT, Bigger JT, Marcus FI, Mortara A, Schwartz PJ. Baroreflex sensitivity and heart-rate variability in prediction of total cardiac mortality after myocardial infarction: ATRAMI (Autonomic Tone and Reflexes After Myocardial Infarction). Lancet 1998, 351: 478–84.
Grassi G. Role of the sympathetic nervous system in human hypertension. J Hypertens 1998, 16: 1979–87.
Avelar E, Cloward TV, Walker JM, et al. Left ventricular hypertrophy in severe obesity: interactions among blood pressure, nocturnal hypoxemia, and body mass. Hypertension 2007, 49: 34–9.
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Cerutti, F., Rabbia, F., Rabbone, I. et al. Impairment of cardiovascular autonomic pattern in obese adolescents with Type 2 diabetes mellitus. J Endocrinol Invest 33, 539–543 (2010). https://doi.org/10.1007/BF03346644
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DOI: https://doi.org/10.1007/BF03346644