The profile of insulin secretion and the role of proinsulin processing across the spectrum of glucose tolerance in obese youth have not been studied. The aims of this study were to define the role of insulin secretion and proinsulin processing in glucose regulation in obese youth. We performed hyperglycemic clamps to assess insulin secretion, applying a model of glucose-stimulated insulin secre...

Impaired glucose tolerance (IGT) is characterized by insulin resistance. Recently, defects in the insulinsignaling cascade have been implicated in the pathogenesis of insulin resistance. To study insulin signaling in IGT, we used human skeletal muscle cells in primary culture from patients with IGT and control subjects. In these cultured myotubes, we assessed insulin-induced 2-deoxyglucose upta...

In the present study, the expression levels and DNA methylation status of microRNA (miRNA)-375 in patients with impaired glucose tolerance (IGT) and type 2 diabetes mellitus (T2DM) were analyzed and the role of DNA methylation of miRNA-375 in the pathogenesis of T2DM was investigated. Compared with the miR-375 levels in patients with normal glucose tolerance (NGT; n=53), the samples from patien...

dopaminergic signaling is one of the regulatory pathways being investigated for its implication in glucose metabolism. the aim of this study was to determine the effect of cabergoline on biochemical and anthropometric parameters in prediabetes stage (impaired fasting glucose and impaired glucose tolerance). in this double blind, placebo-controlled, pilot study, 27 prediabetic adults were random...

background impaired fasting glucose (ifg), and impaired glucose tolerance (igt) are two prediabetes conditions which have some correlation with macrovascular disorders. the risk of microvascular complications in these groups is not clear. objectives the prevalence of albuminuria in subjects with ifg and igt was evaluated in the present study. patients and methods in this study three groups of s...

BACKGROUND It is known that risk of chronic kidney disease (CKD) is elevated in patients with diabetes mellitus but it is not clear whether the risk is also elevated with impaired glucose tolerance (IGT). If the risk is increased, it is not known if this is confined to people with IGT who progress to type 2 diabetes (T2DM). The purpose of this systematic review is to determine the relative risk...

OBJECTIVE To evaluate insulin-secretion kinetics and insulin sensitivity in cystic fibrosis (CF) patients with normal glucose tolerance (CF-NGT), impaired glucose tolerance (CF-IGT) or CF-related diabetes (CFRD), and the potential effects of moderate hyperglycemia on clinical and nutritional status. DESIGN AND METHODS Cross-sectional study including 50 outpatients with CF. Patients underwent ...

BACKGROUND Dietary intake influences glucose tolerance status, yet the relation between macronutrient intake and the development of glucose intolerance during pregnancy has not been adequately examined. OBJECTIVE We examined the relation between macronutrient intake early in pregnancy and the development of glucose intolerance. DESIGN Data are from 1698 women in the Pregnancy, Infection, an...

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...