Active clinical trials for "Insulin Resistance"

In this project, the investigators will perform a multicenter randomised controlled trial to determine whether advice to consume a moderate, whole food-based low-carbohydrate high-fat (LCHF) ad libitum diet (CarbCount program) can produce and maintain equal remission rates of type 2 diabetes (T2D) as a nutritionally complete very-low-calorie formula diet followed by a energy-restrictive (i.e., calorie counting) diet (DiRECT principles). Within the principles of each approach, the dietary goals and change will be adjusted according to individual needs/capabilities conducive to long-term adherence. Furthermore, the investigators aim to determine whether the rate of diet-induced remission is reflected in/can be predicted by baseline or diet-induced changes in glucose variability (e.g., time-in-range measured by continuous glucose monitoring) and other factors such as anthropometric changes and genetic susceptibility. Each center will also conduct locally-lead standalone mechanistic research, including analyses of intra-abdominal/hepatic fat accumulation, adipose tissue biopsies and/or measurements of energy metabolism. Additionally, changes in medication use, nutritional status, cardiovascular disease risk, as well as adverse events, will be monitored.

Insufficient sleep and circadian misalignment are independent risk factors for the development of obesity and diabetes, yet few strategies exist to counter metabolic impairments when these behaviors are unavoidable. This project will examine whether avoiding food intake during the biological night can mitigate the impact of circadian misalignment on metabolic homeostasis in adults during simulated night shift work. Findings from this study could identify a translatable strategy to minimize metabolic diseases in populations that include anyone working nonstandard hours such as police, paramedics, firefighters, military personnel, pilots, doctors and nurses, truck drivers, and individuals with sleep disorders.

The objective of the study is to determine the effect of dairy consumption on insulin sensitivity in overweight and obese adults with prediabetes. Men and women (30-65 y) will be recruited from the greater Montreal area. Upon screening, those with prediabetes will complete a 2-wk run-in period in which participants will consume 1 serving/d of reduced-fat dairy. Adherent participants will be randomized by sex into 1 of 3 groups: ≤1 serving/d of dairy (limited dairy) or 2-3 servings/d of reduced-fat or regular-fat dairy for 12 weeks. Participants will be instructed on how to incorporate foods into their diet in a manner that prevents changes in their body weight. The hyperinsulinemic-euglycemic clamp will be used before and after the intervention to document potential changes in insulin sensitivity as the primary outcome. In addition, glycemic variables, body composition, and cardiometabolic risk factors will be assessed as secondary outcomes. Serum lipidomic and global gene expression responses to the intervention in subcutaneous adipose tissue will be measured as exploratory variables. Adherence to intervention will be assessed at each visit by food diaries, a record of consumed dairy products, and serum proportion of 15:0, 17:0, and t16:1n7 fatty acids as objective biomarkers of dairy fat intake.

Comparing between the efficacy of high intensity interval training and moderate intensity aerobic exercises on insulin resistance in type 2 Diabetes Mellitus.

To determine if Inositol, a dietary supplement, will improve ovarian and adrenal androgen excess in women with Polycystic Ovarian Syndrome(PCOS).

The main purpose of this study is to determine if the Go Girls! program to take place at the Kluge Children's Rehabilitation Center Therapeutic Recreation Gymnasium, intended to introduce girls to a fun, non-threatening environment of exercise with peer support, improves scores on a physical activity enjoyment scale (PACES). Information regarding enjoyment of physical activity before and after the program will allow objective evaluation of whether the program is achieving its mission. Qualitative responses to the questionnaires will give program leaders a better sense of potential attitudes and barriers to regular exercise for teen girls. These responses will be used to shape activities during this or future programs for teens. Anthropometric (e.g. body weight, blood pressure, waist circumference) and biochemical (bloodwork) data will allow us to determine whether any change in metabolic risk factors can be seen from this 6-month once weekly intervention.

Myoinositol (MI) and D-chiro inositol (DCI) are isomeric forms of inositol that were found to have insulin-like properties, acting as second messengers in the insulin intracellular pathway; both of these molecules are involved in the increasing insulin sensitivity of different tissues to improve metabolic and ovulatory functions. Myoinositol is the predominant form that can be found in nature and food. Inositol has been mainly used as a supplement in treating several pathologies such as polycystic ovary syndrome (PCOS), metabolic syndrome, type 2 diabetes mellitus (T2DM) and gestational diabetes (GDM). In the case of GDM, a condition defined as a glucose impairment first detected in pregnancy, a preventive role of inositol for GDM onset was recognized. In addition, inositol has been studied as a therapeutic option for the treatment of GDM and T2DM. The main effect of inositol is decreasing the level of insulin resistance. Consequently, a potential role of inositol as a treatment option could be hypothesized for other conditions typically characterized by insulin resistance like metabolic syndrome and obesity. Zinc also plays an important role in insulin action and carbohydrate metabolism. It may also have a protective role in the prevention of atherogenesis. Several human studies have demonstrated that Zinc supplementation reduces total cholesterol, LDL cholesterol and triglycerides, in addition to increasing the HDL cholesterol levels. Studies have shown that diabetes is accompanied by hypozincemia and high levels of Zinc in urine. In addition Zinc is also an integral part of key anti-oxidant enzymes and Zinc deficiency impairs their synthesis, resulting in increased oxidative stress. A supplementation with Myo-Inositol and Zinc could represent a valid strategy in paediatric obesity in addiction to a standard approach. The purpose of our study is to evaluate the supplementation of Myo-inositol and Zinc in the treatment of paediatric obesity.

The hypothesis is that acupuncture is equally effective as metformin (both treatments combined with lifestyle management) in improving whole body glucose homeostasis in insulin resistant women with polycystic ovary syndrome (PCOS), and that both are superior to lifestyle management alone. The investigators hypothesize that acupuncture and metformin induce ovulation and improve hyperandrogenism, as well as health related quality of life (HRQoL) and symptoms of anxiety and depression. Although equally effective (acupuncture and metformin), the investigators hypothesize that acupuncture is associated with less negative side-effects. The investigators also hypothesize that these treatments have the potential to restore epigenetic and molecular alterations in target tissues (endometrial-, adipose-, and skeletal muscle tissue) and thus have the potential to prevent the development of type 2 diabetes (T2D).

The goal of this pilot open pre-post clinical trial is to test effects of a wholegrain product in patients with newly diagnosed gestational diabetes. The main question it aims to answer is: Does the wholegrain product improve glucose tolerance and insulin sensitivity during a 75 g oral glucose tolerance test (OGTT). Participants will consume product on two consecutive evenings shortly after the first OGTT and will then perform a second OGTT. Researchers will compare the results of the first and second OGTT to see if glucose tolerance improved after consumption of the test product.

The purpose of this study is to determine if diet-induced weight loss causes different changes in hormones that control appetite and glucose control than surgery-induced weight loss. The overall research plan is a non-randomized prospective study of 3 different weight loss (WL) interventions and a lean and an obese healthy control group.