Active clinical trials for "Insulin Resistance"

Hypovitaminosis D is highly prevalent in the general population, particularly in obese individuals. Besides being associated with obesity, vitamin D deficiency seems to be involved in the pathogenesis of insulin resistance and low-grade chronic inflammation. In addition, it has been reported that individuals with low vitamin D levels are at increased risk for cardiovascular diseases. A healthy diet and weight loss are cornerstones in the prevention of cardiovascular diseases. Vitamin D supplementation could increase the beneficial effects of these lifestyle interventions. The purpose of this study is to assess whether vitamin D supplementation in conjunction with a hypocaloric diet improves the cardiometabolic profile of overweight/obese subjects to a greater extent than diet alone.

The current project is designed as a 30-day pilot trial to demonstrate the safety and tolerability of resveratrol therapy in overweight adolescents to decrease liver fat, and improve insulin sensitivity to prevent type 2 diabetes.

Korean red ginseng (KRG) is popular worldwide since it is believed to contain ingredients with a variety of health enhancement effects. Several in vitro studies and animal studies showed that ginseng has anti-obesity, anti-diabetic and anti-metabolic disease effects. Several studies involving type 2 diabetes mellitus (T2DM) patients reported that administration of KRG for 12 weeks resulted in positive effects on the maintenance of sugar control effect and improvement of insulin resistance Although there is evidence to suggest that KRG could efficacious reduction in postprandial glycemia, the benefits of long-term KRG in healthy individuals on insulin sensitivity has not yet been established. Therefore, we investigated whether KRG affected insulin sensitivity in healthy overweight or obese Korean subjects without overt diabetes.

The results of studies conducted until now does not determine what the best way to treat infertility in the first line with patients with Polycystic ovary syndrome (PCOS). This study objective is to determine the best treatment for such patients. The long-term consequence health of women with PCOS are multiple. The woman with PCOS has a risk of developing metabolic diseases, heart diseases, diabetes Type II or anovulatory infertility. The insulin resistance plays an important role in all this medical condition. Clomiphene Citrate (CC) remains the first line treatment to induce ovulation in women with PCOS and anovulatory infertility.

The growing prevalence of obesity and type 2 diabetes (T2D) is a major public health problem. Recent studies have clearly established that the gut microbiota plays a key role in the investigator's propensity to develop obesity and associated metabolic health disorders. The gut microbiota compositions plays a decisive role in glucose metabolism and the chronic inflammatory state associated with insulin resistance. Consuming prebiotic rich diet, including polyphenol and inulin rich food could help modulate favorably the gut microbiota which could lead to a reduction of endotoxemia and beneficial metabolic health effects.

Elective surgery is the most effective treatment option for colorectal cancer, however it has been recognized to be associated with high morbidity and mortality risks. ERAS (Enhanced Recovery After Surgery) is a preoperative multimodality treatment package, which has been well investigated and proved to be effective in reducing early postoperative morbidity, mortality, length of hospital stay and hospital costs, as well. Still, a good proportion of patients are not suitable for ERAS program, mainly based on lack of compliance and the impaired physical function before surgery. Prehabilitation Program is a recently introduced trimodal preoperative preparation (training) program, which addresses improvement of physical, mental and nutritional status of the high risk elective surgery patients. This study aims to investigate the benefit of all efforts of a 4-6-week preoperative preparation program (Prehabilitation) being added to an established ERAS protocol.

BACKGROUND: The influence of sleep extension on glucose homeostasis in adolescents at risk for type 2 diabetes is unknown. This issue is of high clinical relevance given the high prevalence of sleep deprivation in this population and the accumulating body of evidence indicating that having a good night's sleep is important for the prevention of chronic diseases including type 2 diabetes. OBJECTIVE: To determine if extending sleep duration improves insulin sensitivity in adolescents presenting with risk factors for type 2 diabetes. HYPOTHESIS: It was hypothesized that compared with decreasing sleep duration, increasing sleep duration by 1.5 hours over 1 week will improve insulin sensitivity. METHODS: Using a randomized, counterbalanced, 2-condition crossover design, 30 obese adolescents between 13 and 18 years of age who have insulin resistance will complete the study. Participants will sleep their typical amount at home for 1 week and will then be randomized to either increase or decrease their time in bed by 1.5 hours per night for 1 week, completing the alternate schedule on the fourth week (washout period of at least 1 week between sleep conditions). This procedure will result in a targeted 3-hour time in bed difference between conditions. Sleep will be objectively measured using actigraphy (Actiwatch) and sleep schedule adherence will be promoted by providing fixed bedtimes and wake times during the experimental weeks, and will be monitored through phone calls to the research center. Participants will also be compensated for keeping the sleep schedule and daily calls to enhance adherence. The outcome measures will then be compared between both sleep conditions at the end (on day 8 of each study week). The primary outcome measure will be insulin sensitivity as measured by the Matsuda index (total body insulin sensitivity). Secondary outcomes will include the homeostasis model assessment of insulin resistance (HOMA-IR), blood lipids, food intake and physical activity. Repeated measures analysis using the mixed model will be used to assess the effect of the two sleep interventions on insulin sensitivity. RELEVANCE: The study will provide the first robust clinical evidence to determine if increasing sleep duration in youth at risk for type 2 diabetes improves insulin sensitivity. This information will be essential for clinical and public health guidelines for type 2 diabetes prevention among adolescents.

It is of major importance to refine prevention strategies in order to alleviate inflammation, insulin resistance and metabolic syndrome and it appear that improving gut health and microbiota represent a promising strategy. Cranberry-enriched diets may help prevent metabolic syndrome and its associated chronic diseases by a protective effect of gut health and microbiota. It is therefore highly relevant to test the hypothesis that a whole cranberry powder supplements (which include a mixture of polyphenols, free and fiber-associated proanthocyanidins, and fruits fibers) is associated with changes on the gut health and microbiota playing a major role in alleviating inflammation and obesity-associated metabolic disorders.

Type 2 diabetes is a worldwide epidemic disease, and preventive strategies are needed to face this health problem. The goal of this clinical trial is to evaluate the effect of linagliptin + metformin vs metformin alone on physiopathological parameters, such as glucose metabolism, insulin resistance, insulin secretion and pancreatic beta cell function in patients with impaired fasting glucose plus impaired glucose tolerance, during 24 months.

The purpose of this study is to see what effect skipping breakfast versus consuming breakfast has on cognitive performance and the hormones responsible for glucose homeostasis in lean and obese adolescent males. The subjects will be tested on their ability to maintain attention when given several tasks called continuous temporal expectancy tasks (CTET) and electrophysiological signals using electroencephalogram (EEG) will be monitored. These two study groups will be randomized to one of two orders: (A,B) or (B,A) where A = breakfast intervention and B = no breakfast. There will be a washout period of 7 days in between study visits.