Body Weight

This study is being done to learn about the safety and effects of the study drugs, PF-08653945 and PF-08653944, when given alone or together for weight loss, compared to a placebo (a dummy drug that has no active ingredient in it).

This is a placebo controlled clinical trial to assess the utility of light therapy as a sufficient treatment for excessive daytime sleepiness in patients with Prader-Willi Syndrome

Background: Time restricted eating (TRE) is a form of fasting in which a person eats only during a set window of time, which is usually between 4 and 10 hours each day. Researchers want to know more about how TRE may affect health. Objective: To learn how TRE affects women with different body sizes. Eligibility: Healthy women aged 18 to 50 years. Design: Participants will have 2 visits: 1 screening visit and one 5-day stay in the clinic. Participants will fast before both visits. They will have a physical exam with blood tests. They will talk to a nutritionist about the foods they eat. They will lay under a clear hood for up to 45 minutes during a test that measures how many calories they burn while resting. Participants will keep a food diary for up to 7 days before their clinic stay. They will apply a continuous glucose monitor the day before they go to the clinic. This is a device that attaches to the skin of the stomach. They will wear this device throughout their clinic stay. All meals will be provided during the clinic stay. Participants will follow TRE on 3 days. They will answer survey questions and have tests during their stay, including: * DXA (dual energy X-ray absorptiometry) scan. Participants will lie on a padded table. Their body will be scanned to measure how much muscle, bone, fat, and other tissues they have. * Stable isotope tracer study. Small amounts of sugar and other substances will be given through a tube attached to a needle inserted into a vein in the arm. Blood samples will be collected.

This research program includes two coordinated prospective studies (FLOURISH and THRIVE) evaluating the real-world effectiveness of Noom's digital health programs on weight, cardiometabolic biomarkers, physiological health indicators, and program engagement. FLOURISH is a 6-arm prospective cohort study comparing an Education-only control, Noom Weight, standard-dose compounded semaglutide, microdose compounded semaglutide, standard-dose tirzepatide (Noom Plus), and microdose tirzepatide (Noom Plus Microdose). THRIVE is a nested 2-arm prospective study comparing a Proactive Health program to a Noom Free Tier control. Participants complete monthly surveys, remote biomarker collection (Tasso device), connected-scale weigh-ins, and in-app biometric assessments (FaceScan, BodyScan). Microdose and Free Tier arms also use wearable fitness trackers. Primary outcomes are changes in cardiometabolic biomarkers, weight, body composition, and GLP-1 side effect profile. Total N = 2,310; 24-month duration.

This study, at the Western Human Nutrition Research Center (WHNRC), will focus on whether or not achieving and maintaining a healthy body weight is the most important health promoting recommendation of the Dietary Guidelines for Americans (DGA).The investigators hypothesize that improvement in cardiometabolic risk factors resulting from eating a DGA style diet will be greater in people whose energy intake is restricted to result in weight loss compared to those who maintain their weight. The investigators further propose that during a state of energy restriction, a higher nutrient quality diet such as the DGA style diet pattern, will result in greater improvement in cardiometabolic risk factors compared to a typical American diet (TAD) pattern that tends to be lower nutrient quality (more energy-dense and less nutrient-rich.)

The prospective 5-month follow-up study will involve 150 mother-infant dyads grouped based on maternal baseline BMI category (normal weight, overweight, obesity). The investigators plan 3 study visits (1, 3, and 6 months postpartum) with analysis the following parameters and outcomes: 1. maternal anthropometry and body composition; 2. maternal dietary intake and dietary patterns (with results of biomarker-based validation); 3. maternal status of lipophilic antioxidants, selected vitamins, and fatty acids profile that may be related to adipose tissue metabolism, inflammation, and cardiometabolic status; 4. maternal metabolomics, adipokines, insulin, selected biomarkers of inflammation, altered glucose metabolism, and oxidation; 5. breastmilk composition assessed by systemic approach (macronutrients, fatty acids profile, lipophilic antioxidants, adipokines, hormones, immunological profile, and preliminary lipidomic analysis in part of the study group); 6. infant growth trajectory, body composition, urine metabolomics, and biomarkers of oxidative stress. Additionally, maternal and infant stool, buccal swabs, and human milk samples will be banked for further microbiome analysis studies.

This is a randomized controlled experimental study evaluating the effects of oral motor intervention and chronobiological approach to feeding model applied to preterm infants on feeding readiness, transition to total oral feeding and body weight.

The study is a follow-up of a Randomized Controlled Trial (RCT) performed in 2007-10 - the "Lifestyle in Pregnancy" LiP study. The LiP study included 360 pregnant women with BMI ≥30 kg/m2 from Odense University Hospital and Aarhus University Hospital. The women were randomized to intervention with low-calorie diet and physical activity from gestational age 10-14 in pregnancy and until delivery - or to a standard care control group. The objective of the LiPO-Teen project is to perform a clinical follow-up study of the eligible 301 mothers who completed the trial until delivery with a liveborn child, and their 14 year-old offspring. The overall ambition is to understand whether lifestyle intervention in pregnancy prevents obesity and its complications across generations, with a specific focus on modifiable factors.

Weight stigma and weight bias internalization (WBI) are common among adolescents at higher weight statuses. WBI is associated with negative physical and mental health outcomes. The current study aims to test an intervention for weight stigma and WBI combined with an evidence-based adolescent weight management program. Eligible adolescents (13-17) will be assigned by chance to one of two groups: 1) a 4-week intervention focused on weight stigma and WBI followed by a 16-week behavioral weight management program; or 2) a 4-week health information control (to include non-weight-related health promotion topics such as smoking and skin cancer prevention) followed by the same 16-week weight management program but without the WBI and weight stigma content. Study outcomes will be assessed at the 4-week and post-treatment (20 week) timepoints.

The NutriEvalUA program is an observational study aiming to assess the nutritional status, body composition, hydration, physical activity, and health indicators in university athletes. The main objective is to describe and evaluate dietary habits, supplement use, physical condition, and related risk factors to improve health and sports performance in this population. The main question it aims to answer is: What is the nutritional, body composition, hydration, physical activity, and general health profile of university athletes at the University of Alicante, and which factors are associated with potential risks to their performance and well-being?

Obesity is an epidemic in the US. With progression of obesity, Nonalcoholic steatohepatitis (NASH) has been a growing public health issue. Presently there is no cure for NASH.Prevention of progression of fibrosis in NASH is crucial, as they are at a high risk for cirrhosis and may need liver transplant. Recent studies have shown that blocking blood vessels to a particular portion of the stomach (bariatric or left gastric artery embolization) can temporarily decrease levels of the appetite inducing hormone ghrelin, and result in weight loss.The purpose of this study is to determine if Left gastric artery embolization (LGAE) in patients with obesity and NASH leads to clinically significant weight loss with improvement of NASH.

This is a pilot study in 10 men to test the hypothesis that perturbations in substrate flux and the circulating metabolic and pro-inflammatory milieus during a high-fat diet paradigm will modulate DNA methylation of genes in sperm associated with obesity and cardiometabolic dysfunction.

This study looks into how a common breast cancer treatment, paclitaxel, can sometimes cause severe side effects that make it hard for patients to continue treatment. These side effects can significantly affect a patient's quality of life and even impact their recovery and overall health costs. What's interesting about this research is that it considers how a patient's lifestyle, specifically their physical activity levels and body makeup (like how much muscle and fat they have), might influence these side effects. The researchers are doing a detailed study with 40 women receiving paclitaxel treatment, tracking how the drug is processed in their bodies and how their body composition and physical activity might play a role in the side effects they experience. They are using a special method to monitor drug levels in the blood and are also keeping tabs on the patients' health and physical activity through questionnaires and modern tracking devices. The goal here is twofold: first, to better understand why these side effects happen to some people and not others, and second, to develop a model that can predict who might be at higher risk for these side effects based on their body composition, lifestyle, and how their body handles the drug. This could lead to more personalized treatment plans that could help reduce the risk of severe side effects and improve the overall treatment experience for patients with breast cancer. In simpler terms, this research is trying to find a way to make breast cancer treatment with paclitaxel safer and more comfortable by considering how a person's lifestyle and body type might affect their reaction to the drug. This could make a big difference in helping patients complete their treatment successfully and with a better quality of life.

The aim of this study is to look at changes in diabetes-related risk factors in Black adolescent girls who are at risk for type 2 diabetes and their primary female caregiver after both participating in a 12-week in-person lifestyle program.

Childhood obesity is a global public health issue, with rising prevalence rates. In Spain, the problem is significant, particularly in the southern regions. Factors contributing to childhood obesity include dietary habits, lack of physical activity, and socioeconomic influences. Efforts to address childhood obesity in Spain include various programs focusing on dietary modification, increased physical activity, and family involvement. Despite these initiatives, there is a need for continued intervention, as changing dietary and lifestyle patterns have led to reduced fruit and vegetable consumption and increased sedentary behavior among children. Childhood obesity has concerning health implications, including heart-related issues. Echocardiography plays a vital role in early detection. Given the limited research on the impact of childhood obesity on musculoskeletal development and mobility, a comprehensive study is needed to analyze its prevalence and associated factors. The study aims to assess the effectiveness of nutritional interventions administered by school nurses. In summary, childhood obesity in Spain is a growing concern, with multifaceted causes and health implications. Ongoing efforts are required to combat this issue and promote healthier lifestyles among children.

BMI is a simple and widely recorded variable that may capture obesity or cachexia in cancer patients. How BMI is associated to health-related quality of life (HR-QoL) in such patients is poorly investigated. High BMI may be associated to obesity, an increased burden of comorbidity, reduced physical activity and, in some settings, to more aggressive oncological disease. On the other hand, low BMI may reflect enhanced weight loss, cachectic syndrome, higher tumor burden and adverse prognostic features which all deteriorate quality of life. The aim of the present study is to evaluate the association of BMI and HR-QoL as measured by the EORTC-QLQ-C30 questionnaire in several cancer settings (such as localized vs metastatic or distinct primary tumors).