Insulin binding and tyrosine kinase activity of the insulin receptor have been measured in the liver and muscles of rats fed or submitted to a 72-h-fasting. In both tissues, insulin binding increased in fasting rats. In liver, the ability of insulin to simulate receptor tyrosine kinase activity greatly unpaired during fasting, but remained unchanged in muscle. The change during fasting of the i...

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...

Hirsutism is characterized by excessive growth of terminal hair in a male pattern. Idiopathic hirsutism (IH) is a common cause of hirsutism. Since there are few data demonstrating IH is associated with insulin resistance, we tried to assess various insulin sensitivity indices in lean IH and compare with healthy subjects. A cross-sectional study was performed in 71 lean (BMI between 20-25 kg/m(2...

AIMS It is uncertain whether there are associations between circulating levels of insulin markers and coronary heart disease (CHD) risk. We report an updated meta-analysis of studies of circulating levels of three insulin markers (fasting insulin, non-fasting insulin, and pro-insulin) and CHD risk. METHODS AND RESULTS Prospective studies based in Western populations that reported on associati...

BACKGROUND We aimed to evaluate the predictive utility of common fasting insulin sensitivity indices, and non-laboratory surrogates [BMI, waist circumference (WC) and waist-to-height ratio (WHtR)] in sub-Saharan Africans without diabetes. METHODS We measured fasting glucose and insulin, and glucose uptake during 80/mU/m2/min euglycemic clamp in 87 Cameroonians (51 men) aged (SD) 34.6 (11.4) y...

purpose: the aim of this study was to compare biochemical tests, body composition and anthropometric parameters in nonalcoholic fatty liver disease (nafld) patients before and after ramadan fasting. methods: fifty nafld patients including 33 males and 17 females aged 18-65 year, were recruited. subjects attended after diagnosis based on  ultrasound imaging, with at least 10 hour fasting, before...

Hyperinsulinaemia is the earliest subclinical metabolic abnormality, which precedes insulin resistance in obese children. An investigation was conducted on the potential predictors of fasting insulin and insulin resistance among overweight/obese adolescents in a developing Asian country. A total of 173 overweight/obese (BMI > 85th percentile) multi-ethnic Malaysian adolescents aged 13 were recr...

OBJECTIVES Published descriptions of the oral sugar test (OST) and insulin response test (IRT) have been inconsistent when specifying the protocol for fasting horses before testing. The purpose of our study was to examine the effect of fasting duration on blood glucose concentration, blood insulin concentration, glucose/insulin ratio, OST, and IRT results in horses. ANIMALS Ten healthy adult ...

hyperglycemia and gestational diabetes mellitus are complications of pregnancy. both mothers and newborns are typically at increased risk for complications. this study sought to determine effect of zinc supplementation on serum glucose levels, insulin resistance, energy and macronutrients intakes in pregnant women with impaired glucose tolerance.in this clinical trial 44 pregnant women with imp...