OBJECTIVE To investigate insulin sensitivity and secretion in young adolescent girls with childhood onset polycystic ovarian syndrome (PCOS) and to identify the early metabolic derangement(s). STUDY DESIGN Twelve obese girls with PCOS (age 12.0+/-0.7 years) were compared with 10 obese nonhyperandrogenic girls (control group). The groups were matched for age, percent body fat, and abdominal fa...

We investigated the association between fasting insulin concentration--an indicator of insulin resistance in nondiabetic individuals--cardiovascular risk factors, and coronary heart disease in a study of 390 men in the town of Zutphen. In 1990, an extensive examination was carried out on the participating men (aged 70 to 89 years). Fasting insulin levels were determined and a number of other ri...

OBJECTIVE The extent to which abnormal glucose metabolism increases the risk of depression remains unclear. In this study, we investigated prospective associations of levels of fasting glucose and fasting insulin and indices of insulin resistance and secretion with subsequent new-onset depressive symptoms (DepS). RESEARCH DESIGN AND METHODS In this prospective cohort study of 3,145 adults fro...

The primary goal of this paper is to predict fasting glucose levels in type 2 diabetes (T2D) in long-acting insulin treatment. The paper presents a model for simulating insulinglucose dynamics in T2D patients. The model combines a physiological model of type 1 diabetes (T1D) and an endogenous insulin production model in T2D. We include a review of sources of variance in fasting glucose values i...

OBJECTIVE Insulin resistance and compensatory hyperinsulinemia have been proposed as increasing risk for a variety of abnormalities and clinical syndromes, including type 2 diabetes and cardiovascular disease. Our aim was to assess the trends in the mean concentrations of fasting serum insulin and the prevalence of hyperinsulinemia among nondiabetic adults during the periods of 1988-1994 and 19...

BACKGROUND Ghrelin is a 28-amino acid peptide that predominantly produced by the stomach. Strong evidence indicates the effects of ghrelin in the regulation of metabolic functions and its potential role in the aetiology of obesity. AIM The aim of this study was to investigate the relationship of ghrelin levels with obesity, insulin resistance and glucose in normal and obese subjects. METHOD...

OBJECTIVE To compare the pathophysiology of impaired fasting glucose (IFG) and impaired glucose tolerance (IGT) in a more comprehensive and standardized fashion than has hitherto been done. RESEARCH DESIGN AND METHODS We studied 21 individuals with isolated IFG (IFG/normal glucose tolerance [NGT]), 61 individuals with isolated IGT (normal fasting glucose [NFG]/IGT), and 240 healthy control su...

OBJECTIVE Insulin resistance is associated with chronic subclinical inflammation, and both conditions are linked with increased risk for type 2 diabetes mellitus and atherothrombotic cardiovascular disease. METHODS AND RESULTS In a cross-sectional study conducted among participants in the Women's Health Study, an ongoing US primary prevention trial of cardiovascular disease and cancer, we eva...

Insulin resistance syndrome, also referred to as the metabolic syndrome or syndrome X, refers to a constellation of common metabolic and cardiovascular disorders (e.g. obesity, type 2 diabetes mellitus, hypertension, and dyslipidemia), which are all cardiovascular risk factors. Insulin resistance can be induced by fructose-rich diet in rats. We investigated the effect of vanadyl sulfate (0.2 mg...

We aimed to investigate associations of the dietary inflammatory index (DII) with glucose-insulin homeostasis markers, and the risk of glucose intolerance. This cross-sectional study included 2975 adults from the Tehran Lipid and Glucose Study. Fasting plasma glucose (FPG), 2-h post-load glucose (2h-PG), and fasting serum insulin were measured. Homeostatic model assessment of insulin resistance...