Active clinical trials for "Obesity"

This study focuses on a comprehensive examination of obese patients with sleep-related breathing disorders including patients with OSA, sleep hypoventilation and OHS. The aim of this study is to (1) evaluate characteristics of and differences between severity levels of obesity-related breathing disorders, (2) discuss pathophysiological variables associated with hypoventilation during sleep or at daytime and (3) find functional parameters indicating sleep hypoventilation.

Heart failure with preserved ejection fraction (HFpEF) was considered as a heterogeneous disease with multi-organ and multi-system design, which is related to various complications, such as hypertension, obesity and arteriosclerosis. Studies have found that hypertension and obesity are respectively associated with increased arterial stiffness. However, there is still no research investigating the the relationship between blood pressure and arterial stiffness in HFpEF patients with different levels of obesity.

This study has been designed as a randomized, double blinded, multi-centric, placebo controlled, and phase II dose-ranging study. The herbal drug contains bioactive ingredients from Labisia pumila plant and it is an aqueous ethanolic standardized extract (SKF7™).

Obesity is an important public health problem worldwide. There are large regional differences in the prevalence of overweight and obesity. Obesity is a growing problem in both developed and low-income countries. Obesity is a common condition characterized by excessive fat accumulation in adipose tissue. It is associated with metabolic, hematological and musculoskeletal complications, increased risk of dyslipidemia, heart disease, diabetes and some malignancies, leading to a shortened life span. Inflammation from adipose tissue has been identified as the main source of systemic inflammation and may also be associated with insulin resistance. Adipocytes and adipose tissue-related macrophages from obese individuals are an important source of inflammatory mediators such as TNF-α, IL-6, IL-1 and MCP-1. It has also been shown that decreased levels of IL-10, an anti-inflammatory cytokine, are associated with obesity and metabolic syndrome.We aimed to evaluate changes in 13 different proinflammatory and anti-inflammatory cytokines in patients who underwent sleeve gastrectomy or gastric bypass.

Researchers are trying to better understand the relationship between inflammation in adipose tissue (AT) and insulin resistance.

The purpose of this study is to evaluate the effectiveness of a recreational physical activity intervention for reducing the prevalence of overweight/obesity and other cardiovascular risk factors

Obesity is a national epidemic that affects all aspects of health care, including trauma care. According to the Centers for Disease Control and Prevention, 1% of US adults 20 years old and older are obese (body mass index [BMI], calculated as weight in kilograms divided by height in meters squared, > 30), and 69% are overweight (BMI > 25) (1, 2). Obesity is a major health concern because of its established relationship with serious medical diseases and increased likelihood of comorbid conditions (eg, diabetes mellitus, hyperlipidemia, heart disease, pulmonary disease) (3). As the number of obese adults continues to increase, the potential number of obese trauma patients with severe injury and complications will also increase (3). Management of prehospital and in-hospital trauma care, including complications associated with airway management, surgical procedures, and radiological imaging, of obese patients can be challenging. However, published reports on how obesity complicates hospital stays after trauma are conflicting (4, 5). Several studies have indicated that obese trauma patients are more likely than non-obese patients to have longer stays in the intensive care unit (ICU) and hospital, more days of mechanical ventilation, more complications, and comorbid conditions, and higher mortality (6,7,8). Other studies have indicated no differences between obese and nonobese patients in mortality, length of stay in the ICU and the hospital, duration of mechanical ventilation, complications, or comorbid conditions (9). Accordingly, the main aim of this study is to investigate and compare hospital course, clinical outcomes, disposition, and the cost of treatment between geriatric obese and non-obese patients hospitalized for treatment of traumatic injuries.

The overall purpose of this explorative yet quantitative study project is to understand how blocking IL-6 signaling leads to the expansion of adipose tissue mass in humans in vivo. The aim is to gain in depth knowledge about how IL-6 receptor blockade affects human lipid, glucose and protein metabolism, specifically the uptake and storage of substrates from a meal vs. their utilization, hence the balance determining whether one gains or loses fat mass.

Importance and Purpose of the Study: Proper management of the difficult airway is an important part of preventing anesthesia-related mortality and morbidity. Difficult airways, characterized by both difficult mask ventilation and difficult intubation, are common in obese patients. Many studies have shown an association between obesity or morbid obesity and difficult intubation. We thought that in obese patients, increased subcutaneous fat tissue in the nape of the neck may restrict the head extension and cause difficult intubation and difficult mask ventilation, and the increase in the chin-nape circumference may predict difficult intubation and difficult mask ventilation. We also predicted that the ratio of neck circumference to chin-nape circumference might predict difficult intubation and difficult mask ventilation. Materials and Methods: After the approval of the ethics committee, obese patients who require tracheal intubation, undergo elective surgery, over the age of 18, with a body mass index (BMI) of more than 30 were evaluated. Patients with cervical spine anomaly, emergency procedures, known history of difficult intubation or upper respiratory tract disease, and planned awake intubation were excluded from the study. Mallampati score, mouth opening, upper lip bite test, distance between incisors, thyromental distance, sternomental distance and thyromental height were recorded. Using a tape measure, the neck circumference from the thyroid cartilage level and the chin-neck circumference from the mentum level were measured with the patient in a neutral position. The ratio of neck circumference to thyromental distance and the ratio of neck circumference to chin-nape circumference were calculated from these measurements. Mask ventilation was graded according to the method described by Han et al. After adequate muscle relaxation was achieved, tracheal intubation was performed with an appropriately sized Macintosh blade using direct laryngoscopy. Difficult intubation evaluation was performed using the Difficult Intubation Scale (IDS) based on seven variables. Results: A statistically significant relationship was found between difficult intubation and the distance between incisors, neck circumference, neck circumference / thyromental distance, neck circumference / sternomental distance, and chin-nape circumference. In the multivariate regression analysis performed with these parameters, the distance between the incisors was <4.85 cm and the neck circumference> 41.5 cm was found to be independent risk factors for difficult intubation. A statistically significant relationship was found between difficult mask ventilation and age, male gender, OSAS, neck circumference, neck circumference / thyromental distance, neck circumference / sternomental distance, neck circumference / chin-nape circumference and chin-nape circumference. In the multivariate regression analysis performed with these parameters, it was determined that male gender and neck circumference thicker than 45.5 cm were independent risk factors for difficult mask ventilation. Conclusion: The ratio of neck circumference to chin-nape circumference and chin-nape circumference are successful in predicting difficult mask ventilation in obese patients. While chin-nape circumference is successful in predicting difficult intubation in obese patients, neck circumference / chin-nape circumference is unsuccessful.

Obesity, in addition to causing abnormal glucose and lipid metabolism, is also associated with altered plasma concentrations of multiple amino acids, including increased levels of branched-chain amino acids and decreased levels of glycine. The mechanisms and consequences of obesity- related glycine deficiency are unknown. The overall aim of this project is to comprehensively study glycine metabolic pathways in morbid obesity using stable-isotope tracer techniques in human subjects and validating kinetic findings using a cell model of oxidative stress. This will be a single-centre, observational study. 21 individuals with morbid obesity scheduled for bariatric surgery and 21 non-obese controls will be recruit. They will undergo different study visits and procedures and the human biological materials collected will be analysed for as per aims of the studies. We believe that the glycine metabolic pathways, possibly through the optimization of gluthathione (GSH) synthesis, may provide targets to develop novel therapeutic agents.