View clinical trials related to Fasting.
Filter by:This study aims to establish the metabolic/molecular response in both adipose tissue and skeletal muscle as well as sensory experiences (pain, fatigue, drive) to prolonged fasting of 3 days duration. Participants will undergo sequential meal assessment before and after a 3 day fast with measures taken throughout each fasting day.
The aim of this study is to determine whether the fasting duration required for patients after consuming oral jelly is comparable to that after consuming water, prior to elective surgery. International guidelines for perioperative fasting recommend abstaining from clear fluids for 2 hours to minimize the risk of regurgitation and aspiration pneumonia. However, there are no specific recommendations regarding the perioperative management of jelly consumption. Current understanding emphasizes the benefits of minimizing preoperative fasting time, including preventing dehydration and metabolic complications like ketoacidosis, as well as potentially enhancing patient satisfaction. Oral jelly consumption may offer advantages by improving preoperative hydration and providing some nutritional support prior to procedures. This crossover study will involve 25 adult volunteers. In the first phase, participants will be randomly assigned to either oral intake of water or jelly, followed by the opposite intervention in the second phase. Gastric content and volume will be assessed using gastric ultrasound.
In 2018, colorectal cancer is the third most common malignant tumor in terms of morbidity and second mortality in the world. Surgical resection is still the main treatment for colorectal cancer.With the introduction of the ERAS, the latest international and domestic guidelines for fasting before surgery all advocate shortening the fasting time. For example, 2 hours before surgery, oral take cleared fluids, including water, sugar water, fruit juice, tea and black coffee (without milk) is allowed.Solid food can be consumed 4 hours before surgery, and oral diet should be resumed as soon as possible after surgery. Changes in diet, nutritional status, and physical activity are closely related to the incidence of colorectal cancer. Therefore, we believe that the intestine may be very sensitive to different fasting times during the perioperative period. Prolonging the fasting time may improve the prognosis by improving postoperative insulin resistance, reducing inflammation and protecting anti-tumor immune function in patients with colorectal cancer.Prolonged fasting time seems to be contrary to the results of some studies, and whether it is applicable to patients with tumor surgery is unclear. Therefore, there is an urgent need to conduct large-scale, prospective, randomized controlled clinical studies to clarify the most suitable perioperative fasting strategy (including composition, interval, and amount) for cancer patients, which can not only reduce surgical stress and speed up postoperative rehabilitation,reduce postoperative metastasis and recurrence and improve mid- and long-term prognosis.
Gastric volume will be measured before, 5, 30, 60, 90 and 120 min after drinking 450ml of maltodextrin in young adults and elderly.
To determine the feasibility, safety and efficacy of fasting, participants are recruited in a 5-days fasting ( without any food, except unlimited mineral water),and do some fitness regimen (such as meditation and mild physical exercise ) during fasting.The samples will be collected from participates and subjected to comprehensive analysis ,including routine medical examination in blood, metabonomics and proteomics anlysis in serum and urine samples, gut microbiome analysis in stood samples, and so on.
This is a prospective study with a "crossover design", where fasting with a day of complete fasting and a fasting day with the permission intake of calories- and carbohydrate-free foods are compared in a randomized order. Underlying hypothesis is that at the same basal insulin substitution with the fasting of both protocols , no significant differences in the glucose-day or -night profiles revealed. So the same conclusions regarding the "consistency" of basal insulin dosing revealed during the implementation of the part of patients is rated as more pleasant when calories and carbohydrates-free food are allowed.
The purpose of this study will be to determine whether giving leptin (r-metHuLeptin) to a person when he or she is fasting will reverse changes in metabolism, and hormone levels, and immune function associated with fasting, which decreases leptin levels.