View clinical trials related to Insulin Resistance.
Filter by:Obesity is a widespread disease that basically develops from unhealthy lifestyle and genetics. The Fat-mass and obesity associated (FTO) gene affects appetite and energy intake of the body, thus elevating fat mass and body weight. The single nucleotide polymorphism (SNP) rs9939609 of the FTO gene is a common variant in different ethnic groups, and its A allele is associated with increased body mass and waist circumference. Hence, the carriers of rs9939609 SNP are prone to weight gain if a healthy diet and lifestyle are not maintained. Similarly, high levels of serum cholesterol and triglycerides, while low levels of high-density lipoproteins are observed in carriers of rs9939609 AA genotype. For individuals having FTO rs9939609 A allele, consumption of hypocaloric diets (1500 kcal/day) consisting of high protein foods up to 25-30% of total daily energy intake might help reduce body weight. However, weight loss tends to vary in individuals after consuming the same diet under similar environmental conditions, so it is important to know the effect of different genotypes that might cause this variation. The study aimed to genotype overweight and obese adults for FTO rs9939609 polymorphism and to determine the effect of this polymorphism on body weight, BMI, waist and hip circumferences, lipid profile, insulin sensitivity, ghrelin levels, inflammatory markers and advanced glycation end-products in these individuals after consumption of a hypocaloric, high-protein diet for 4 weeks.
The purpose of this research is to obtain blood samples before and after a bariatric procedure to better understand the reasons for glucose intolerance and insulin resistance (diabetes) in the obesity, and the reasons for improvement of diabetes after bariatric surgery
The primary aim of this study is to evaluate if a single bout of AM vs PM resistance exercise has different effects on insulin sensitivity and sleep. A randomized cross-over trial be used to compare resistance exercise at two different times of the day. Each condition will take place in a laboratory setting. Each condition will consist of exercise, overnight sleep, and oral glucose tolerance tests the following day. The AM exercise will occur ~1.5 hours after habitual wake, and PM exercise will occur ~11 hours after habitual wake. After a 2-6 week washout, participants will complete the other condition. The hypothesis is that PM exercise will be more beneficial than AM exercise in improving insulin sensitivity. This study could identify if there is a better time of day to perform resistance exercise to decrease risk of developing Type 2 Diabetes Mellitus.
The goal of this clinical trial is to understand how the blood sugar-lowering hormone insulin works in healthy adults versus those who are at risk for type 2 diabetes. The study will use a drug called alpelisib, which interferes with insulin's actions in the body, to answer the study's main question: does the liver continue to respond to insulin's stimulation of fat production even when it loses the ability to stop making glucose (sugar) in response to insulin. Researchers will compare the impact of single doses of both alpelisib and placebo (inert non-drug) in random order (like flipping a coin) in study participants. Participants will be asked to stay twice overnight in the hospital, take single doses of alpelisib and placebo (one or the other on each of the two hospital stays), and receive intravenous (into the vein) infusions of non-radioactive "tracer" molecules that allow researchers to measure the production of glucose (sugar) and fats by the liver. Measurements will be done both overnight, while participants are asleep and fasting (not eating or drinking other than water) and while consuming a standardized diet of nutritional beverages during the following day. The objective is to evaluate the effect of lowering insulin levels, while maintaining constant mild hyperglycemia, on plasma glucose and lipid levels.
The aim of this study was to determine the effect of intravenous infusion of 5% dextrose injection during the recovery period of anesthesia for painless gastroenteroscopy on the patient's blood glucose level, incidence of hypoglycemia and time of awakening from anesthesia, postoperative vertigo, postoperative nausea and vomiting, and quality of recovery in the early postoperative period.
To determine the efficacy and safety of 2 different treatment modalities: 1) acupuncture plus lifestyle management (treatment group), 2) placebo plus lifestyle management (control group) in the treatment of insulin resistance in PCOS patients.
This double-blinded proof-of-concept study is proposed to explore the effects of fecal microbiota transfer (FMT) in human subjects. Here we perform FMTs into obese recipients using stool from lean unoperated donors and from previously obese patients after successfull treatment with bariatric Roux-en-Y Gastric Bypass (RYGB) surgery. Obese patients treated with their own material (autologous FMT) serve as controls. After FMT treatment the functional impact of post-surgery microbiome changes on host energy consumption and regulation of blood glucose levels will be analysed. Additionally the variations on the microbiota and metabolite composition will be profiled using extensive sequencing analyses. The major aim of the study is to explore the scientific rationale for targeted gut microbiota modulation in management of obesity and related metabolic diseases.We estimate the transfer of microbiota from RYGB donors is superior to the transfer of lean microbiota at inducing reduced adiposity and improving high blood glucose levels in obese recipients. Each is better than a sham procedure (autologous FMT), which itself can also induce considerable short-term effects.
The goal of this randomized controlled trial is to test the effect of time-restricted eating (14-hour fast, 10-hour eating window) of a low-energy dense diet (reduced calories per gram of food) in older adults with obesity and insulin resistance. The study aims to determine if modulating the energy density of the diet reduces: 1. Insulin resistance and 2. Body weight. Researchers will compare the groups: 1. Following time-restricted eating and given a diet reduced in energy density or 2. Following time-restricted eating and given a diet typically consumed in this population
Females treated with antipsychotics have higher rates of comorbid metabolic syndrome than males. Despite this, females have historically been excluded from many mechanistic studies due to confounding effects of menstrual cycles. Recent evidence suggests that brain insulin resistance may be an underlying mechanism through which antipsychotics may exert their metabolic side effects. This study seeks to investigate how brain insulin action differs in females according to their menstrual cycle phase, and how a high metabolic liability agent such as olanzapine might interrupt these differential insulin effects. Young healthy females will be given olanzapine and intranasal insulin to test how these treatment combinations change brain processes. Participants will be tested during both the first half of their menstrual cycle (follicular phase) and the second half of their cycle (luteal phase). We predict that intranasal insulin will change MRI-based measures in females, in a comparable way to males, in the follicular phase only. Adding olanzapine will block these effects of insulin in females in the follicular phase. This investigation has the potential to generate new knowledge in an area of significant unmet need. Demonstrating that antipsychotics disrupt brain insulin action, evidenced by inhibition of recognized effects of insulin on neuroimaging measures, will provide novel insights into currently poorly understood mechanisms.
The goal of this study is to collect more information from people with plaque psoriasis and to determine if insulin plays a role in the pathogenesis of psoriasis. The main question it aims to answer is if insulin action is preserved or even enhanced in psoriatic lesions despite insulin resistance elsewhere. Participants with plaque psoriasis will have punch biopsies taken of lesional and non-lesional skin after an overnight fast and then during an oral glucose tolerance test. Biopsy specimens will then be assessed for markers of insulin action.