View clinical trials related to Insulin Resistance.
Filter by:The goal of this clinical trial is to test a single dose of the phosphoinositide-3-kinase (PI3K) inhibitor alpelisib versus placebo in healthy volunteers. The main questions it aims to answer are the impact of acute alpelisib-induced insulin resistance on parameters of glucose and lipid metabolism (how healthy people respond to temporary insulin resistance so that the investigators can see what happens to how the liver handles fat and sugar). Participants will: - Consume their total calculated daily caloric needs in nutritional supplements, divided in three meals, and otherwise fast for 24 hours - Take a dose of alpelisib 300 mg or placebo at bedtime - Wear a continuous glucose monitor for 72 hours - Participate in an oral glucose tolerance test (OGTT) Researchers will compare blood tests before and during OGTT in participants randomized (like the flip of a coin) to alpelisib versus placebo to see how the drug treatment affects plasma glucose, serum insulin, and serum lipid parameters (triglycerides, free fatty acids, and apolipoprotein B).
The goal of this clinical trial is to compare a two-week course of diazoxide (at two different doses) and placebo in people with overweight/obesity and insulin resistance (IR) with, or at high risk for, non-alcoholic fatty liver disease (NAFLD). The main questions it aims to answer are how mitigation of compensatory hyperinsulinemia with diazoxide affects parameters of glucose and lipid metabolism (how people with IR and NAFLD respond to lowering high insulin levels so that the investigators can see what happens to how the liver handles fat and sugar). Participants will: - Take 27 doses of diazoxide (at 1 mg per kg of body weight per dose [mpk] or 2 mpk) or of placebo, over 14 days - Take 32 doses of heavy (deuterated) water (50 mL each) over 14 days - Have blood drawn and saliva collected after an overnight fast on four mornings over the two-week study period - Consume their total calculated daily caloric needs as divided into three meals per day - Wear a continuous glucose monitor for the two-week study period Researchers will compare fasting blood tests at intervals during the study period in participants randomized (like the flip of a coin) to diazoxide 1 mpk, diazoxide 2 mpk, or placebo, to see how the drug treatment affects plasma glucose, serum insulin, and serum lipid parameters (triglycerides, free fatty acids, and apolipoprotein B). They will also consume heavy (deuterated) water to assess de novo lipogenesis (building of new fatty acids by the liver).
Impaired brain vascular function precedes the development of reduced cognitive performance, while brain insulin-resistance is also associated with cognitive decline. Peanut consumption has already been shown to beneficially affect cognitive performance. However, underlying mechanisms have not yet been established, while well-controlled trials on longer-term effects of peanuts on cognitive performance are highly needed. The hypothesis is that longer-term peanut consumption has beneficial effects on (regional) cerebral blood flow responses (primary outcome), which may relate to an improved cognitive performance (secondary outcome) in older men and women. Important objectives are to investigate in older adults the effect of 16-week peanut consumption on (i) brain vascular function in cognitive-control brain areas, and (ii) brain insulin-sensitivity. We will also focus on changes in cognitive performance as assessed with a neuropsychological test battery (secondary objective). Cerebral blood flow responses before (brain vascular function) and after the administration of intranasal insulin (brain insulin sensitivity) will be non-invasively quantified by the non-invasive gold standard magnetic resonance imaging (MRI)-perfusion method Arterial Spin Labeling (ASL).
This is a single-center, prospective, randomized, controlled (crossover) clinical study designed to investigate the specific dose-response impact of insulin infusion rate (IIR) on blood glucose levels during a pancreatic clamp study. The investigators will recruit participants with a history of overweight/obesity and evidence of insulin resistance (i.e., fasting hyperinsulinemia plus prediabetes and/or impaired fasting glucose and/or Homeostasis Model Assessment of Insulin Resistance [HOMA-IR] score >=2.73), and with evidence of, or clinically judged to be at high risk for, uncomplicated non-alcoholic fatty liver disease (NAFLD). Participants will undergo two pancreatic clamp procedures in which individualized basal IIR are identified, followed in one by maintenance of basal IIR (maintenance hyperinsulinemia, MH) and in the other by a stepped decline in IIR (reduction toward euinsulinemia, RE). In both clamps the investigators will closely monitor plasma glucose and various metabolic parameters. The primary outcome will be the absolute and relative changes in steady-state plasma glucose levels at each stepped decline in IIR.
In this study, the drug Akkermania muciniphila has been proved to play an important role in the occurrence and development of obesity related metabolic diseases. The purpose of this study was to evaluate the safety and efficacy of AKK in the treatment of insulin resistance related obesity. In this study, a single center, randomized, double-blind, placebo-controlled design was adopted. 120 patients with obesity related to insulin resistance were included in this study, and were allocated to live bacteria high-dose group, live bacteria low-dose group, and placebo group at a ratio of 1:1:1. The study lasted for 12 weeks. The changes of body fat, glucose metabolism, lipid metabolism indicators, and fatty liver changes compared with the baseline at the end of the treatment were analyzed. In addition, glucagon like peptide-1 (GLP-1) in plasma and inflammatory markers (hsCRP, TNF) in blood will be analyzed before and after treatment- α、 IL-6、IL-8、IL-1 β） Level, plasma LPS level, oxygen/hydrogen/methane level in methane hydrogen breath test, changes in fecal flora structure, and the mechanism of AKK bacteria affecting insulin resistance by analyzing bacterial metabonomics molecular spectrum in plasma and urine.
Propolis, a natural resinous mixture rich in polyphenols, produced by bees from a variety of plant sources, has shown significant therapeutic effects and may prevent the development of certain chronic diseases. Current evidence supports the beneficial effect of these bioactive phytochemicals on the management of type 2 diabetes mellitus (T2DM) and other chronic diseases. The objective of this study is to evaluate the effect of poplar propolis extract powder (PPEP) on glucose homeostasis and other clinical parameters in insulin-resistant patients (diagnosed by HOMA-IR index > 1.85 for men and > 2.07 for women).
To investigate whether changes in fructose dietary intake can help to improve dietary fructose-induced insulin resistance and post bariatric weight loss in obese subjects of Caucasian descent
Background: Obesity and related illnesses cause at least 2.8 million deaths each year worldwide. Few treatments exist for obesity that are safe and widely available. A study drug (mirabegron [MG]) combined with a supplement (alpha-lipoic acid [ALA]) may help. Objective: To learn how MG and ALA can help the body process food. Eligibility: People aged 18 to 65 years with a body mass index between 30 and 40 kg/m2. Design: Participants will be screened. They will have a physical exam. They will have blood and urine tests and a test of their heart function. They will speak with a dietician. The study has two phases. Each phase begins with a 2-day stay in the clinic; then the participant will take the study drugs at home for about 4 weeks, followed by another 2-day stay in the clinic. They will also have outpatient visits about 2 weeks after each clinic stay. During the clinic stays, participants will undergo many tests: They will have a plastic tube (catheter) inserted into a vein in each arm. These will be used to draw blood and to infuse glucose (sugar) and insulin. They will have imaging scans. They will have a clear hard plastic shield placed over their head to measure oxygen and carbon dioxide as they breathe. Participants will take the study drugs at home. Both MG and ALA are taken by mouth with water. During one phase, participants will take MG plus a placebo. A placebo looks like the study drug but doesn t contain medicine. They will log their diet, exercise, and sleep....
The study aims to investigate the effects of oral inositols on insulin-resistance and metabolic variables (triglycerides, total cholesterol, HDL cholesterol) in children aged 8-12 years with obesity and insulin-resistance.
The goal of this randomized, double-blind, parallel group interventional study is to evaluate the effect of ketone bodies on healthy older adults (65-85 y) during 5 days of bed rest. The main questions it aims to answer are: Does supplementation of ketone bodies prevent the typical decline in muscle protein synthesis, muscle size, muscle function, insulin sensitivity, and muscle mitochondrial function that occurs in response to bed rest? Researchers will compare ketone supplements (KET) to an energy matched control beverage (carbohydrates and fats) to see if the ketones can rescue the decline in muscle protein synthesis rates, muscle loss, muscle function, insulin sensitivity, and mitochondrial function due to 5 days of bed rest. This may positively impact the heath of older adults subjected to bed rest.