Active clinical trials for "Obesity"

The present study aims to evaluate the correlation between the presence of COMT Val158Met polymorphism and the density of dopaminergic transporters (DAT) in young obese women.

The objective of our study is to evaluate the prevalence of sarcopenia and sarcopenic obesity in our surgical population and their relationship in postoperative complications after complex abdominal wall surgery and its influence on hernia recurrence. This is a retrospective study on a prospective maintains database of complex abdominal wall surgery. We select patients with defects larger than 10 cm from any location (W3 of the EHS classification), excluding other causes of complex abdominal wall in order to have a more homogeneous sample. Pre-surgical computed tomography (CT) scans of the selected patients will be reviewed to establish the diagnosis of sarcopenia, obesity, sarcopenia-obesity or the absence of these (normal). The CT scans will be reviewed by two trained investigators, blinded to postoperative complications and survival. In case of disagreement, a third investigator will break the tie. The radiological diagnosis of sarcopenia has been established based on the skeletal muscle mass index. Skeletal muscle mass measurement will be performed in a cross-section in the pre-surgical CT scan at the level of the third lumbar vertebra (L3). The BMI, the Visceral Fat Area and the Subcutaneous Fat Area (SFA) will also be measured. With the previous data, the VFA / SFA ratio will be calculated. The study will be completed with the collection of sociodemographic data, comorbidities and presence of risk factors for the development of incisional hernia, ASA, size and location of the hernia, surgical technique, postoperative complications according to Clavien-Dindo, stay, readmission, late complications and hernia recurrence. Likewise, the presence or absence of recurrence will be collected. Statistical analysis will be performed to see if there is a correlation between sarcopenia and sarcopenic obesity with the appearance of local and systemic complications and recurrence. To evaluate the independent contribution of each variable to the presence of complications, a univariate and multivariate logistic regression analysis will be performed.

The aim of this study was to investigate the pathogenic role of obesity on blinding eye diseases in a population of severely obese patients with no history of eye diseases, and to verify whether weight loss induced by bariatric surgery may have a protective effect.

The purpose of this study is to compare average methylation of epigenetic markers on genomic DNA and some genes (APP, BACE, LRP, SorL1) involved in cerebral amyloid homeostasis: Of obese young adults and healthy young adults Of obese young adults and individuals affected by Alzheimer's disease (AD) having been obese at young adult age (<50 years old) or individuals affected by Alzheimer's disease (AD) having never been obese. The secondary purpose is to determine if there is an association between the frequency of these epigenetic markers and elements associated to the metabolic syndrome (lipidic and glycemic analysis, leptinemia, inflammation markers) and clinical ones (visceral fat mass, body mass index) in young adults.

This study is designed to determine whether obese, normal weight, and successful weight loss maintainers differ in their food choice decision-making and/or executive function, and whether participation in a behavioral weight loss program leads to neural and/or behavioral changes. The investigators will examine behavioral performance on several tasks involving decision-making and self-control in conjunction with brain imaging data acquired during a food-choice decision-making task. Participants enrolled in the behavioral weight loss program will also be assessed following the treatment.

Obesity is associated with increased risk of surgical complications. Ventilation tube insertion is one of the most frequent surgical procedures performed on children. However, the impact of obesity on surgical results or surgical related complication following ventilation tube insertion remains poorly understood. The aim of this study was to investigate the effect of obesity on the surgical results of ventilation tube insertion for otitis media with effusion (OME) in pediatric patients.

Fructose intake from added sugars has increased dramatically over the last century and has recently been implicated as potential contributor to metabolic syndrome, obesity, hypertension, inflammation and kidney disease. Fructose differs from the other sugars because, uric acid is generated during its metabolism. Serum uric acid levels have been found to correlate with the intake of fructose and added sugars. In turn, an elevated serum uric acid has also been shown to be associated with increased risk for cardiovascular and metabolic diseases. On the other hand complexity of fructose metabolism in each individuals results of the various magnitude of hyperuricemia induced by fructose intake. The magnitude of uric acid production in each patient may reflect individual predisposition to endogenous urate production in a face of relatively normal fasting uric acid concentration. Therefore the oral fructose tolerance test might reveal an occult purine disturbances which plays casual role in either metabolic disturbances or organ damage. The aim of this study is to see whether is a relationship between fructose induced hyperuricemia and metabolic disturbances , inflammatory state and organ damage in obese and various stages CKD patients.

The purpose of this study is to determine if there is an association between a variety of adverse childhood experiences and overweight and obesity. The adverse childhood experiences that will be examined include childhood abuse (physical, emotional, sexual), childhood neglect (physical, emotional), and household dysfunction (domestic violence, parental marital discord, and household members with a history of substance abuse, mental illness, and criminal behavior). Because this study will be performed at a military treatment facility, additional military unique experiences to include frequent residential mobility and parental deployment will also be examined. Hypotheses/Research Questions: Overweight and obese young adults are more likely to report having experienced adverse childhood experiences and household dysfunction than their peers of normal weight. In addition, the more severely overweight or obese the patient, the more likely the patient is to report a higher number of previous adverse childhood experiences. Thus, there is a graded relationship between the severity of overweight/obesity and the number of adverse childhood experiences.

The metabolic risks associated with obesity are closely correlated with central (abdominal), rather than a peripheral (gluteofemoral) fat pattern It has been shown that weight loss after bariatric surgery is followed by metabolic improvements. The amount of fat lost from each site may be independently regulated. Very scant information is found in the literature regarding the relative changes in different fat body compartments, and their effect on the improvement of the metabolic profile. In this study we define the absolute and relative changes in the different adipose tissue compartment after weight loss surgery

Hormonal disruption is the inappropriate alteration of the hormonal system by chemical substances that are present in our environment. Some chemical substances are capable of replicating, enhancing or reducing the production, release, transport or action of natural hormones. Therefore, they are called hormonal or endocrine disrupters. Some 'classic' endocrine disrupters such as pesticides and dioxins are considered responsible for infertility, cancer and thyroid problems. Recently, a number of additional chemical substances were stipulated to have endocrine disrupting capabilities. The industrial production of these substances in large quantities has led to an accumulation in our environment and thus possible negative consequences on human health. The aim of this study is to investigate the rol of these chemical substances in the occurence of overweight and obesity.