View clinical trials related to Glucose Intolerance.
Filter by:The purpose of this study is to find out if tadalafil can help overweight and obese people metabolize blood sugar more efficiently. The investigators also want to find out if 20 mg/day of tadalafil for 3 months is safe to take without causing too many side effects. The investigators are plan to enroll 100 subjects at Massachusetts General Hospital (MGH).
Type 2 diabetes mellitus (T2DM) is a major public health problem .Prevalence of vitamin D deficiency is also high i.e. 78-96% in different groups of population in north India. Observational studies find association between low Vitamin D status and type 2 diabetes mellitus. Prediabetes is a condition that progress to diabetes at a rate of 6-10% per year .There is mechanistic support that vitamin D may influence both insulin secretion and insulin sensitivity and subsequently T2DM incidence. In general, cross-sectional and prospective studies support the role of vitamin D in the prevention of T2DM. This study will be a single blind randomized placebo controlled trial to study the effect of oral cholecalciferol in insulin sensitivity and secretion in adults with prediabetes who are also vitamin D insufficient.
Introduction: The overall aim of the study is to assess the efficacy of Lactobacillus Rhamnosus in reducing glucose intolerance during and after pregnancy. A second objective of the study is to determine the feasibility, compliance and safety of Lactobacillus Rhamnosus among this cohort. Within this goal is to determine whether the investigators can enroll women at high risk for developing Gestational Diabetes Mellitus (GDM) and follow them out at regular antenatal visits and 6-weeks post partum. Women with GDM are, 7 times more at risk of developing type 2 diabetes compared with those who had a normo- glycaemic pregnancy. The population attributable risk for type 2 diabetes mellitus (DM) in women with GDM is high, and around 30 - 50% women with GDM converts into type 2 (DM) which is associated with pre-mature morbidity, mortality and high economic burden. It is evident that untreated GDM is associated with higher incidence of complications during pregnancy and increases the risk of perinatal mortality and infant morbidity. The prevalence of GDM in Pakistan is around 8%, comparatively higher than other South Asian countries. Therefore, interventions that can improve glucose regulation during pregnancy are highly important. Probiotics, the live micro-organisms, have shown promising results in regulating glucose metabolism among pregnant mice. The effect of Probiotics on glucose metabolism is attributable to their immuno-regulatory properties. They elicit powerful anti-inflammatory capabilities by inhibiting the NF-kB pathway, which mediates microbial activation of the immune system. Further, they diminish both fermentation of polysaccharides and induction of fasting-induced adipocyte factor gene transcription. The safety of Lactobacillus Rhamnosus among pregnant women is already established in other diseases. A placebo controlled trial from Finland on pregnant females randomized to receive either dietary counseling and Probiotics (Lactobacillus Rhamnosus), concluded improved glucose tolerance as compared to the placebo group [OR 0.31 (95% CI 0.12, 0.78)]. However, this study could not determine the sole effects of probiotics in reducing glucose intolerance. Nevertheless, no studies on the role of Lactobacillus Rhamnosus in regulating glucose intolerance have been conducted in any other part of the world yet. Therefore, a pilot trial to see the efficacy, compliance and feasibility of Lactobacillus Rhamnosus among pregnant females is imperative. The objectives of the investigators study are: - To assess the efficacy of Probiotics Lactobacillus Rhamnosus (1010 Colony forming Units (CFU)/day) in reducing glucose intolerance among pregnant women attending antenatal clinic of Karachi-Pakistan. - To assess the feasibility, compliance and safety of conducting a double blind, placebo controlled randomized trial of Lactobacillus Rhamnosus by recruiting high risk women during pregnancy attending antenatal clinics and following them up 6 weeks postpartum in Karachi-Pakistan. Methods: For the pilot trial, women will be recruited from antenatal hospital of the city, during 12-14 weeks of gestation. Study Design: The study will be double blind randomized, placebo controlled trial. Randomization will be done by blocked method. The dose of 1010 Colony forming Units (CFU) once daily till delivery will be given orally. Study Endpoints and Ascertainment: Baseline information will be comprised of socioeconomic status, parity, gravida, blood pressure and obstetric history etc. The study endpoint comprises of efficacy, feasibility, compliance and safety and will be ascertained at monthly follow-up, during week 24 - 28, and 6 weeks post partum. Efficacy will be ascertained by Oral Glucose Tolerance Test (OGTT) performed at randomization and during 24-28 weeks of gestation. Feasibility and compliance will be assessed through recruitment rate, drop-out rate, reasons for drop-out, non-participation and empty drug sachet count.
The purpose of this study is to compare the effectiveness of educational and lifestyle intervention programs aimed at reducing fasting blood sugar and emotional distress in adults with prediabetes.
Background: Type 2 diabetes is a chronic disease that puts individuals at risk for serious health problems like heart disease, kidney failure, vision problems, and stroke. A major way that type 2 diabetes occurs is through insulin resistance. Insulin resistance means that insulin (an important hormone in the body to keep blood sugar normal) isn t working as well as it should, which can lead to problems with high blood sugar. Insulin resistance has been linked to mood problems, stress, and depression, especially in women. To determine if group programs can help reduce the risk for type 2 diabetes, researchers want to look at teenage girls who are at risk for developing the disease. Objectives: To test whether a group program designed to improve mood also can help improve insulin resistance in teenage girls who are at risk for developing type 2 diabetes, or whether a group program that teaches healthy living skills is just as helpful. Eligibility: Teenage girls between 12 and 17 years of age who are at risk for developing type 2 diabetes. Design: - Participants will have two screening visits to find out if they are eligible to take part in the study. The first visit takes about 3 hours and will involve a physical exam, medical history, questionnaires and an interview about mood problems and possible depression. The second visit takes about 6 hours and will involve a full body scan to measure muscle and fat, blood draws and a glucose test to determine insulin resistance, questionnaires about general well-being and eating habits, eating meals and snacks, and an exercise test. - Participants will join one of two group programs at the National Institutes of Health. One group focuses on learning skills to help with bad moods and stress. The other group covers topics that are important for teens to lead a healthy life. The groups will meet for 1 hour once a week for 6 weeks during after-school hours. - At the end of the groups, participants will have three follow-up visits. The first visit will be 6 weeks later, the second will be 6 months after the start of the group program, and the third will be 1 year after the start of the group program. Each visit will take about 6 hours. These visits are similar to the second screening visit before the groups. - Some participants will have extra tests to study stress at the second screening visit and the 6-week, 6-month, and 12-month follow-up visits. Participants will give samples of DNA, saliva to measure stress hormones, and they will take part in a brief stress test. For more information, visit the study website at: http://mir.nichd.nih.gov or contact the research coordinators for the study at 301-594-3198.
This randomized, double-blind, placebo-controlled, multi-site study is to reverse modest elevations of fasting blood sugar (prediabetes) and resting blood pressure(Prehypertension) or both co existing prediabetes and prehypertension by increasing blood levels of vitamin D. This may reduce the chances of developing diabetes or high blood pressure or both later in life.
An increasing proportion of Sweden's population comprises non-European immigrants, who constitute a high risk-population for T2D. Numbering almost 9,000 individuals, Iraqi citizens represent the largest immigrant group in Malmoe and are identified as a risk group for Type 2 Diabetes (T2D) in whom genetic and lifestyle factors probably play significant roles in the development of T2D. Several studies have shown that adoption of an active lifestyle by at-risk individuals dramatically reduces the risk of T2D. However, there are currently no established methods for providing support to high-risk individuals from different cultural and social backgrounds to help them adopt beneficial lasting lifestyle changes. Instead of just waiting for Iraqi high-risk individuals to develop T2D, this project will implement and assess lifestyle intervention programs aimed at reducing the risk of developing T2D and tailored to individuals with a different social and cultural background. The study thus seeks to optimize preventive action in health care and aims to facilitate the adoption of permanent changes in lifestyle in high-risk patients, taking account of cultural and social barriers. Since T2D is associated with a sedentary lifestyle and develops earlier in men than women and an average 10 years earlier in immigrants from the Middle East than in native Swedes, it is crucial to study pathogenic mechanisms triggering T2D development in relation to sex, lifestyle and ethnic background. The results will provide the basis for deciding how health care providers can actively work to prevent T2D and other lifestyle-associated diseases in this high-risk population that has not been studied before.
Background: - Metabolic syndrome is a name given to a group of factors that tend to occur together. These risk factors include central obesity (extra weight around the middle of the body) and high blood pressure and blood sugar levels. They also include low levels of HDL ("good cholesterol") and high triglyceride levels. A person is said to have metabolic syndrome if they have three or more of the above risk factors. People with metabolic syndrome are at increased risk for type 2 diabetes, stroke, and heart disease. - Cortisol, a hormone produced by the adrenal glands, is an important regulator of metabolism. People with central obesity and metabolic syndrome may have higher than normal cortisol levels that the body cannot regulate properly. Abnormal cortisol levels may play an important role in metabolic syndrome. Mifepristone is a drug that blocks cortisol. Researchers are interested in studying its effects on metabolic syndrome. Objectives: - To study the effects of short-term mifepristone treatment for metabolic syndrome. Eligibility: - Men and Women between 35 and 70 years of age are overweight or obese, and have abnormal glucose and triglyceride levels. Design: - Participants will be screened with a physical exam and medical history. They will also have blood and urine tests. - Participants will be admitted to the metabolic unit at the National Institutes of Health Clinical Center for the first 3 days of the study: - Day 1: Body measurements (height, weight, waist, hip, and neck) and blood pressure tests. Also, 24 hours of regular blood draws and 24-hour urine collection to monitor regular daily cortisol levels. - Day 2: Glucose/insulin infusion test to measure blood sugar levels. - Day 3: Infusion of cortisol-like compounds and then regular blood draws for about 3 hours to evaluate how cortisol is metabolized. - At the end of Day 3, participants will receive mifepristone or a look-alike capsule to take for 7 days at home. - After 7 days, participants will return to the metabolic unit to repeat the Day 1 and Day 2 study procedures. They will continue to take mifepristone. - One week after the second set of study tests, participants will return for a brief physical exam and blood tests. - The study procedures will be repeated after 6 to 8 weeks, with the other study drug.
Dietary polyphenols might have beneficial effects on glucose and lipid metabolism based on the studies made in animals or cell cultures. The findings regarding the possible decrease of low-grade inflammation are existing also in humans. Low-grade inflammation has been suggested to be a mechanistic link between obesity and its consequences on cardiometabolic health. The aim of the present study is to examine the effect of diet rich in berries on glucose and lipid metabolism and inflammatory markers.
The purpose of this study is to determine the effect of chronic PDE5 inhibitor therapy on glucose metabolism in persons with prediabetes.