View clinical trials related to Glucose Intolerance.
Filter by:Caffeine containing energy drinks (CCED) are beverages that typically contain mixtures of simple sugars, caffeine and may contain vitamin, mineral and/or herbal preparations. In Canada, the consumption of CCEDs among adolescents is a regular occurrence and a common part of the everyday diet. Contributing to the obesity epidemic in youth is the consumption of energy drinks; yet no data on the metabolic responses to CCEDs exists. This study will examine the metabolic implications of CCED consumption in adolescents, aged 13-19 years. The investigators hypothesize that CCEDs will impair glucose tolerance by ~30% in lean adolescents and the primary cause of the insulin resistance will be caffeine. Obese individuals will experience a similar level of glucose impairment, but a greater rise in blood glucose compared to their lean counterparts (i.e. higher starting glucose level). For many, this additional, caffeine-induced rise will expose them to hyperglycemia, putting some individuals in the glucose intolerant or transient diabetic range. It is hypothesized that continued metabolic insult resulting from CCEDs may predispose susceptible individuals to chronic metabolic diseases later in life. The investigators will also examine the genetic basis of caffeine-induced glucose intolerance. This gene-diet interaction could explain why caffeine may be much more metabolically harmful for some individuals compared to others. The study of 'metabolomics' will also be utilized to analyze caffeine and caffeine metabolites such as theobromine, theophylline, and xanthine. This will be accomplished using Nuclear Magnetic Resonance (NMR) spectroscopy. Results from this study will have the potential to alter current perceptions that CCED are 'harmless' and will have far reaching implications for both medical professionals and legislators alike.
Cystic Fibrosis related diabetes (CFRD), a major factor of morbid-mortality in CF, is characterized by a preclinical phase of glucose intolerance particularly long reaching up to 10 years. At the physiopathology level, insulin secretion is determinant in the glucose tolerance abnormalities in CF. Indeed insulin secretion is dependent of the CFTR activity at the beta cell surface and inhibition of CFTR leads to a decrease in insulin secretion. Recently, the combination of the lumacaftor, a CFTR corrector, with Ivacaftor, a CFTR potentiator, was studied in patient with CF homozygous for the Phe508 del CFTR mutation patients and showed an improvement of the respiratory state in comparison with the placebo group. These data suggests that lumacaftor in combination with ivacaftor in targeting CFTR action may have an early impact on the insulin-secretion and consequently on the glucose tolerance.
One in three American adults have prediabetes, and up to 70% of adults with prediabetes eventually develop type 2 diabetes. With the high cost of treating diabetes, cost-effective approaches are needed to reduce the incidence of diabetes. One new strategy may be to change when people eat. Studies in rodents suggest that a form of intermittent fasting that limits eating to a short time period each day and involves fasting for the rest of the day (time-restricted eating; TRE) improves blood sugar control and cardiovascular health. Preliminary studies suggest that TRE also improves blood sugar, weight loss, and cardiovascular health in humans. This study will be the first full-scale, controlled feeding trial to determine whether TRE can improve 24-hour blood sugar control, 24-hour blood pressure, and cardiovascular disease risk factors even when food intake is matched to the control group. This clinical trial will also determine whether the benefits of TRE depend on the time of day that people eat. Participants will be assigned to one of three groups: (1) 'Early TRE' (eat between ~8 am-3 pm), (2) 'Mid-day TRE' (eat between ~1 pm - 8 pm), or (3) Control Schedule (~8 am - 8 pm) for 8 weeks. All food will be provided and matched between groups.
The Pre-DICTED (Pre-Diabetes Intervention and Continued Tracking to Ease-out Diabetes) program is a community-based diabetes prevention program. This study aims to test the effectiveness of structured, group-based lifestyle interventions with stepwise addition of metformin, if required, among subjects with pre-diabetes in multi-ethnic Singapore.
This project aims to ascertain that novel imaging and metabolic markers can be used to identify as well as to validate and improve the detection of Singapore-Chinese women at increased risk of diabetes.
Despite exercise training decrease blood fasting glicaemy in 'average' terms, there is a wide inter-individual variability after exercise training explored mainly in adults but not in adults with prediabetes comorbidities. Thus, is yet unknown the effects and influence of the concurrent training (CT) eliciting responders (R) and non-responders (NR) cases (i.e., percentage of subjects who experienced a non-change/worsened response after training in some metabolic outcomes).
Obesity and pre-diabetes threatens the overall health and functional independence of older adults but lifestyle weight management for diabetes prevention, soon to be reimbursed by Medicare, can reduce this burden. The current 24-month study will enroll adults, ages 60 and older, through senior community centers and research registries. The investigators will study how two long term weight loss maintenance programs, both using group telephone sessions to support health behavior change, impact meaningful health outcomes. If successful, this project will provide a sustainable intervention model for healthy aging services that can benefit older adults and society.
The purpose of this study is to determine if a weight loss app (VA MOVE!® Coach App) along with regularly scheduled telephone counseling, will motivate obese people with metabolic syndrome to lose weight and improve the symptoms of the metabolic syndrome, compared to usual weight loss approaches. This study will randomly assign participants to one of two groups, interventional or control. The interventional group will use the app with phone coaching and standard of care for weight loss. The control group will receive standard weight loss care without the app and phone coaching. Weight loss motivation to adopt life-style changes to maintain weight loss and quality of life between the two groups will be compared. The metabolic syndrome (MetS) is a cluster of disorders including high blood pressure, pre-diabetes, the tendency to carry body weight around the waist, and increased fat in the blood. When these problems happen together, there is an increased risk for heart attack, stroke, diabetes and certain cancers. Although the metabolic syndrome is a serious condition, it can be treated with diet, weight loss and increased activity. It can even be reversed using these lifestyle changes. Due to poor success with routine short-term weight loss treatment (group and one-on-one counseling), it is time to address the problem by a different method. Studies have shown feedback devices and weight loss apps have been successful in weight loss and weight maintenance. They are economical (many apps are free), and convenient to use, without attendance at group sessions. Since weight loss is the corner stone for improvement in the symptoms of the MetS, this study will offer a unique approach to support individuals who are committed to losing weight and adopting a healthier lifestyle. Numerous studies demonstrated that feedback via text messaging, and interaction through social networking support groups, in addition to iPhone apps, are all more effective in weight loss measures than group sessions at a hospital site. (Duncan et al., 2011; Greene, Sacks, Piniewski, Kil, & Hahn, 2012; Shaw et al., 2013; Spring et al., 2013). The benefit of these various methods is that they appear to accelerate weight loss and prevent weight re-gain if employed long-term. With technology changing daily, these approaches must be considered an essential adjunct to, or replacement for, traditional group counselling sessions.
This research will assess the feasibility of conducting a randomised control trial to evaluate the effectiveness of a 15-minute one-to-one consultation to improve blood glucose control in pre-diabetes. The consultation will take the form of a 15-minute one-to-one consultation between a health-care practitioner and the patient in a primary care setting. Patients with a glycated haemoglobin (HbA1c) of between 42 and 47 mmol·mol-1 will be identified in general practise and will be eligible to participate. They will attend testing sessions at baseline (before the consultation), and at three months and six months post consultation. Body mass index (BMI), waist and hip girth, blood pressure and body composition will be recorded and blood analysed for HbA1c, cholesterol and dietary components. For a three-week period following each visit, urine will be collected, a 5-ml sample on nine occasions, and physical activity will be recorded in a sub group of participants. Urine will be analysed by flow infusion electrospray mass spectrometry (FIE-MS) to determine the metabolic content, providing an indication of the diet over the three-week sampling period. The research objectives are to assess the effectiveness of recruitment strategy and willingness of patients to engage in, and adhere to, the research process; to determine the impact of consultation on health outcome measures, including HbA1c, and to establish participant and practitioner perspectives of the consultation.
The Fit-One trial involves three prospective, randomized waitlist-controlled studies. These studies evaluate the effects of One Drop's digital therapeutics solution with and without Fitbit devices on the social cognitive, behavioral, and health outcomes of people with diabetes. Fit-One is being tested on adults with type 1 diabetes (T1D) of all weights, and adults with type 2 diabetes (T2D) or pre-diabetes that are overweight or obese (BMI ≥ 25).