View clinical trials related to Insulin Sensitivity.
Filter by:Two important mechanisms play a major role in the pathogenesis of type 2 diabetes: insulin resistance of the target tissues and the impaired insulin secretion from pancreatic β-cells. Postprandial factors (such as insulin) are perceived by the human brain and induce signals that regulate glucose metabolism via the parasympathetic nervous system. Deep breathing exercise can increase parasympathetic nerve activity. Heart rate variability (HRV) in healthy people can be significantly increased by deep breathing maneuvers, indicating a shift from sympathetic activity to parasympathetic activity. The hypothesis is that this postprandial shift results in a change in peripheral glucose metabolism. In turn, the increased parasympathetic activity could potentially result in a change in postprandial insulin sensitivity or secretion. To test this hypothesis, this study investigates the effect of deep breathing exercise versus normal breathing on insulin sensitivity, on insulin secretion, glucose tolerance, resting energy expenditure, and on parasympathetic tone (analysis of heart rate variability).
Counting Carbohydrates (CC) is the preferable method used to calculate the amount of insulin needed for a meal. This method is employed by patients with type 1 diabetes melitus (T1DM). the patients receive the general arithmetic calculation of how much insulin to inject for 15 grams/1 portion of carbohydrate (carb to insulin ratio (C:I) and insulin sensitivity (IS). However, Diabetes Educators are often confronted with difficulties guiding their T1DM patient when using this method and find patients get confused calculating the amount of carbs needed. The investigators sought to create a simple tool that would help our patients implement the CC method easily and properly.
This study tests the effects of cannabinoid levels in blood on inflammation and insulin sensitivity both acutely and chronically in individuals across the weight spectrum. To that end, the study employs two observational designs: 1) A study of acute effects with intermittent cannabis users and 2) A study in which current cannabis users will select one of three cannabis strains for four weeks and are compared to a matched control group who do not use cannabis to study chronic effects. Blood levels of THC and CBD, inflammatory biomarkers, and insulin resistance will be measured in both studies.
This study will examine markers of vascular endothelial function (vascular health) and metabolic profiles in younger versus older transgender women (people who were assigned male at birth but whose gender identity is female). Data will also be compared to those from cisgender women and men.
50% of Arizonans are diabetic or pre-diabetic resulting in $6.4 billion in health care and productivity costs. The severity and incidence of Type 2 Diabetes Mellitus (T2DM) is directly related to the hepatic lipid concentration. The degree of hepatic lipid accumulation is communicated by the hepatic vagal afferent nerve (HVAN) to regulate pancreatic insulin secretion and whole body insulin sensitivity. We have shown that obesity enhances expression of GABA-Transaminase (GABA-T) decreasing hepatic release of the excitatory neurotransmitter, aspartate, and increasing release of the inhibitor neurotransmitter, GABA. This enhanced inhibitory tone decreases hepatic vagal afferent nerve activity, increasing pancreatic insulin release and decreasing skeletal muscle glucose clearance/insulin sensitivity. Pharmacological inhibition of GABA-T robustly improves glucose homeostasis in diet induced obese mice. We propose 2 clinical objectives that will test the effect of GABA-T inhibition on glucose tolerance and insulin sensitivity in obese, hyperglycemic, hyperinsulinemic patients.
The study is evaluating the effects of a standard diet to a low carbohydrate diet in obese women after having a baby. The purpose of the study is to determine if a low carbohydrate diet is associated with improvement in insulin sensitivity in postpartum women.
Our goal is to examine linkages between physical activity, appetite control, and energy metabolism in adolescents. The investigators will assess metabolic function and appetite control in male and female adolescents stratified by bodyweight and physical activity using across-sectional study design.
During last decades, an excessive intake of sugars has been observed in westernized countries, mainly due to the consumption of sugar-rich soft drinks. Epidemiological studies have pointed out a positive correlation between the consumption of such drinks and the risk of obesity, diabetes, and cardiovascular diseases. Therefore, there is a growing trend looking for new non-caloric alternatives (sweeteners) in order to reduce the sugar content of foodstuffs without losing their sweetness and tastefulness. However, some questions regarding sweeteners have recently arisen as their effects after long-term consumption have not been fully unravelled. They could also contribute to a higher caloric intake and to disrupt the gut microbiota. Besides seeking new alternatives for the high intake of sugar-rich drinks, there is a need for increasing the consumption of fruits and vegetables among general public. Developing new products to stretch the shelf-life of fresh fruits, preserving their nutrients, and reducing the energetic content of fruit juices should also be accomplished. In this sense, lemon juice has been proposed as an interesting ingredient in the elaboration of soft drinks due to its distinctive aroma and high nutritive value. Its combination with maqui berry juices contributes to stabilize the colour and phenolic compounds that both products contain (mainly flavanones for lemon juice and anthocyanins for maqui). The beneficial effects of these vegetal foodstuffs and their phenolic substances on glucose intolerance have been reported.The aim of BEBESANO is studying the beneficial effects of sugar-free, rich-in-phytochemicals drink consumption on postprandial hyperglycaemia, in order to provide alternatives to excessive sugar intake and counteract the postprandial response linked to sugar consumption in subjects with low levels of chronic inflammation such as overweight people. Moreover, BEBESANO will shed light on the interactions of food constituents with the main pathways involved in the lipid and glucose metabolism, oxidative stress, inflammation, and hormonal regulation in overweight population.
This study will evaluate the effect of treatment of obstructive sleep apnea on insulin sensitivity in pregnant women. Women in their third trimester of pregnancy will be randomized to receive treatment or no treatment for one month.
The hypothesis is that consumption of pulse-based foods (i.e. containing chickpeas, lentils, and split peas) during the workday will improve insulin sensitivity, glucose tolerance, blood lipids, body composition, and blood pressure in sedentary office workers.One-hundred office workers from a university campus will participate in a cross-over study where they will be randomized (i.e. assigned by chance) to receive pre-packaged pulse-based lunches and snacks to replace their usual lunches/snacks during the work day OR to continue consuming their usual diets for two months. After the first dietary intervention, they will undergo a 1-month "wash-out" and then participate in two months of the opposite dietary intervention. The main outcome to be assessed is change in glucose and insulin (i.e. blood sugar control) determined during an oral glucose tolerance test. Secondary outcomes include changes in body composition, lipids, and blood pressure. During the pulse-based diet phases, participants will be supplied with a ready-to-eat lunch and two snacks to eat during each workday. These will contain a total of 150g/d dry weight (250g/d wet weight) pulses