Articles tagged with Obesity
A recent study found that even moderate amounts of exercise can help prevent weight gain in overweight individuals. The research, published in the Archives of Internal Medicine, suggests that more intense physical activity is necessary for weight maintenance and that a modest amount of exercise can reverse positive caloric imbalances.
A WHO expert consultation suggests that traditional BMI cut-off points may not be suitable for Asian populations, who experience a higher risk of adverse health outcomes at lower BMI values. The consultation proposes intermediate public-health action points to address this disparity.
A new study finds evidence of genetic linkages to metabolic syndrome in both black and white patients. The researchers also identified chromosomal regions linked to cardiovascular disease and type 2 diabetes risk factors. These findings bring us closer to discovering the actual genes responsible for metabolic syndrome.
Two studies found obesity increases risk of aggressive prostate cancer and cancer recurrence in African-American men. Obesity is associated with higher Gleason scores and elevated PSA levels, suggesting a link between excess body fat and tumor growth.
A study on beclin 1 autophagy gene reveals its role in tumor suppression. In another study, researchers found that obese fatty tissue is characterized by inflammation, which may contribute to insulin resistance. These findings suggest that autophagy and inflammation play crucial roles in cancer biology and obesity-related diseases.
Two studies found that macrophage infiltration of adipose tissue is characteristic of human obesity and precedes insulin resistance. Treatment with an insulin-sensitizing drug triggered downregulation of inflammatory genes, suggesting a potential therapeutic target.
A new study has identified a link between the size of apolipoprotein(a), a protein component of low-density lipoprotein, and an increased risk of heart disease in overweight individuals. The research suggests that analyzing apolipoprotein(a) size may provide a reliable way to discriminate between those at high risk and those without.
A new study finds that obese mice require the MSH hormone to develop diabetes, increasing resistance to insulin. Researchers believe this may lead to more effective preventive treatments for Type 2 Diabetes.
A study of patients undergoing Roux-en-Y gastric bypass found significant complications and increased risk of obesity-related health issues. The procedure requires major lifestyle changes and can be fraught with complications, highlighting the importance of weighing risks and benefits before surgery.
A study of 335 patients found that gastric bypass surgery is associated with complications such as suture tears, pulmonary embolism, and pneumonia. The procedure should only be considered for patients who have tried other weight loss methods and are at risk of life-threatening complications due to their obesity.
A study found that a waist measurement greater than 40 inches for men and 35 inches for women is an independent risk factor for cardiovascular disease. Another study discovered that patients rated their doctors' care higher when both were of the same race, leading to longer matched-race visits.
A study found that Roux-en-Y gastric bypass surgery carries a high risk of complications, including suture tears, leaks, pulmonary embolism, pneumonia, and infection. Patients who undergo the procedure are at high risk due to co-morbidities such as type 2 diabetes and cardiopulmonary problems.
A global study found that caloric sweetener use increased worldwide, driven by soft drink consumption. The study analyzed data from 103 countries and showed a significant rise in added sugar intake between 1962 and 2000, primarily attributed to soft drinks and fruit drinks.
A study by OHSU researchers found a strong relationship between the decline of estrogen and progesterone in female monkeys and significant weight gain. The study suggests that menopause may play a key role in metabolic changes leading to obesity.
A recent study by the American Heart Association recommends regular brisk but comfortable walking to boost cardiovascular fitness. Middle-aged obese adults walked at a self-selected pace and achieved recommended levels of exercise intensity.
A recent study found that one in eight North Carolina schoolchildren have three or more heart risks, including low HDL levels and obesity. The researchers attribute this to the prevalence of overweight children among girls, which increases the risk of developing type 2 diabetes and heart disease.
A new gene, BBS8, has been identified as being involved in Bardet-Biedl syndrome, a rare genetic disorder characterized by obesity, learning disabilities, and eye/kidney problems. The protein BBS8 is found only at the base of cilia, which play key roles in mammalian development.
Researchers found that overweight boys experience greater increases in blood pressure during stress, but their ability to restore normal pressures is impaired. In contrast, overweight girls have a more effective natural mechanism for reducing blood pressure, which may be attributed to the effects of estrogen.
A study of 9,790 participants found that exercising more and eating a balanced diet reduced cardiovascular mortality rates by over half. Those who were overweight or obese but exercised less faced increased cardiovascular risks, even if they ate fewer calories.
A new study links variations in the GAD2 gene to obesity and Type 1 diabetes, revealing a potential connection between food intake regulation and body weight control. Researchers hope to further unravel the underlying biology of eating behavior and explore genetic connections to obesity.
Researchers found a genetic link between GAD2 variants and obesity. The study suggests that overexpression of the GAD2 gene may increase GABA levels in the hypothalamus, leading to increased orexigenic effects and overeating.
A recent study published in Public Library of Science Biology has identified the GAD2 gene as a strong candidate for human obesity. The research suggests that an active form of this gene contributes to excessive hunger and eating behaviors, particularly in individuals with a higher risk of obesity.
A new study found that lower family income and parental education levels significantly contribute to the development of depression and obesity among adolescents. The researchers analyzed data from over 15,000 teenagers and found that these socioeconomic factors accounted for a substantial proportion of the disease burden.
Researchers discovered that portion size and calorie density both contribute to caloric intake, with combined effects leading to a 56% increase. By choosing water-rich foods or smaller portions, individuals can reduce their risk of overeating.
Using National Longitudinal Study of Adolescent Health data, researchers found that 18% and 15% of black and Hispanic females respectively became obese over the five-year exam period. Obesity rates among older adolescents were higher and more likely to remain stable or increase.
The study found that gastric bypass surgery significantly improved diabetes outcomes in patients, with nearly all achieving normal blood sugar levels and reducing their reliance on anti-diabetic medications. Patients with shorter disease durations and milder type 2 diabetes saw the greatest improvements in glycemic control.
Researchers found that high-fat diet causes downregulation of CYP4A and CYP2C23 enzymes in renal tubules, leading to increased sodium reabsorption and elevated blood pressure. This study highlights the importance of eicosanoid synthesis in regulating renal function and blood pressure.
Researchers found increased COX-2 protein expression and changes in TXA2 and PGE2 levels in the Obese Zucker rat, which led to kidney damage. The study suggests that COX-2 inhibitors may be beneficial for preventing renal damage in obesity-related type II diabetes.
A recent study of early-stage breast cancer patients found that tamoxifen is effective in reducing recurrence and mortality regardless of body mass index. However, obesity was linked to increased risks of second cancers and all-cause mortality.
A study found that health professionals who treat and study obesity are biased against overweight patients, associating them with negative stereotypes. Younger people show greater bias, while those working directly with obese patients and having understanding friends exhibit lower levels of bias.
A research team at Johns Hopkins Medicine has identified a potential new contributor to obesity and learning disabilities, faulty cilia, in the rare genetic disorder Bardet-Biedl syndrome. Cilia play key roles in mammalian development, but defects have never been directly linked to this condition before.
A study of 276 adolescents found overweight teens with scoliosis experienced worsening curvatures despite bracing, with over half requiring surgery. The Hopkins team recommends considering weight in treatment decisions for scoliosis.
A study by Stephanie A. Roberts and colleagues found that lesbians have a significantly higher body mass index, waist circumference, and waist-to-hip ratio than their sisters, which may trigger more heart disease. The researchers recommend focusing on reducing weight around the middle of the body to decrease cardiovascular risk.
Researchers investigate how excess fat contributes to hypertension by increasing blood volume, as opposed to constricting it. Studies show impaired sodium handling mechanisms lead to prolonged elevated pressures in obese individuals.
A new study reveals that poor American families struggle to balance heating costs with nutrition during the cold season. Despite a 10% calorie reduction, researchers argue that this may not be as detrimental to health as previously thought.
A study found that obese individuals have lower levels of the naturally occurring gut hormone PYY3-36, which limits appetite. Infusing PYY3-36 reduced calorific consumption in both lean and overweight volunteers by around a third for 24 hours.
Researchers identified OEA, a natural fatty acid, that activates cell receptors to curb hunger and reduce weight in rodents. The study found that increasing OEA levels while maintaining normal receptor activity can lower blood cholesterol and triglyceride levels.
Researchers have discovered an engineered mouse that can eat a high-fat diet without gaining weight or developing diabetes. The mouse lacks the SCD-1 gene, which affects fat production and glucose regulation. As a result, muscle cells are more sensitive to insulin, enabling them to absorb glucose and regulate blood sugar levels.
The Exten Fitness System uses motorized chairs to provide a safe all-body workout for those unfit or overweight, helping counter the UK's 'couch potato' culture. The system offers 23 exercises in 30 minutes, promoting increased muscle tone and mobility, improved circulation and coordination.
A new study is investigating the role of genetics in exercise response, seeking to identify genes that influence body composition and fitness. The project aims to develop personalized exercise programs tailored to individual needs, which could lead to improved weight loss and reduced obesity-related risks.
The UNC study found that residents with access to trails, sidewalks, and well-lit streets were more likely to meet the recommended physical activity levels. Notably, blacks, American Indians, and those with lower education and income levels reported less favorable neighborhood environments and reduced access to exercise spaces.
A recent study found that the French eat smaller portions compared to Americans, which may contribute to their lower obesity rates and healthier diets. The researchers examined portion sizes at restaurants in Paris and Philadelphia, as well as single-serve foods sold in supermarkets.
A study by UT Southwestern Medical Center found that obesity is associated with acute mountain sickness in high-altitude destinations. Obese individuals are more susceptible to symptoms such as headache, nausea, and fatigue, highlighting the importance of gradual ascent and medication for preventive measures.
Research suggests that obesity increases breast cancer risk in postmenopausal women by raising serum estrogen levels. The study analyzed blood samples from over 1,600 women and found a significant link between obesity and increased estrogen levels, highlighting the importance of controlling this modifiable risk factor.
Research reveals that obese individuals are more likely to develop symptoms of acute mountain sickness at high altitudes, with lower blood oxygen levels. In contrast, smoking marijuana or taking synthetic cannabinoids in HIV patients did not affect key treatment indicators, according to a new study. A no-fault medical malpractice syste...
Researchers at Johns Hopkins Medicine discovered that altering leptin's signaling pathway can minimize or even reverse left ventricular hypertrophy, a condition causing the heart to expand and stiffen. Leptin infusions led to weight loss and improved heart function in mice with obesity, while caloric restriction had no effect.
Recent studies highlight the importance of addressing weight concerns without stigmatizing obese patients. The American Thoracic Society Journal reports on innovative approaches to weight loss treatment and sheds light on previously unexplored phenomena such as chimerism in human lung tissue after stem cell transplantation.
The WHO leader highlights three key priorities for action: reinstating health as a focus of organizational agendas, scaling up effective interventions to reach more dying children, and building capacity at the district level. Collaborative partnerships are necessary to achieve these goals and reduce child mortality worldwide by two-thi...
A new study by Cornell University professor David Levitsky found that college freshmen gain an average of 4.2 pounds in their first 12 weeks, with breakfast and lunch at all-you-can-eat dining facilities accounting for 20% of the weight gain. The study suggests that this phenomenon may be contributing to the rise in obesity among Ameri...
Researchers at McGill University have identified a receptor protein on fat cells that stimulates lipid storage when stimulated. Dr. Katherine Cianflone's team found that disrupting the ASP-C5L2 complex may help slow down fat production, which could be a potential key to treating obesity.
Researchers have identified a gene called Foxa-2 that is switched on only in the fat cells of obese mice. This gene acts as a brake to slow down further fat production and storage. In pre-adipocytes, Foxa-2 activates genes important for insulin sensitivity, providing an ideal combination for treating obesity and type 2 diabetes.
A large-scale study will test three weight-maintenance strategies: self-directed/usual care, personal contact, and interactive technology. Participants who lose 9 or more pounds in the initial phase will be eligible to enroll in phase II.
Women who developed Alzheimer's disease between ages 79 and 88 were significantly more likely to have been overweight at age 70. A moderate, healthy weight seems to be best according to the study.
A study by Penn State researchers suggests that ancestry mix may be a key factor in obesity prevalence among African-American women. The analysis found an association between body mass index and West African ancestry, with implications for understanding the genetic basis of health disparities.
Researchers found that adding interleukin-6 to the preservative solution before transplantation significantly increased post-transplant survival of rats receiving organs with fatty degeneration. The treatment reduced cell death and improved liver function in steatotic livers, suggesting a promising strategy for addressing organ shortages.
Researchers at Saint Louis University found that daily injections of growth hormone helped obese patients lose an average of five pounds. The weight loss was primarily due to the reduction of body fat, particularly in the abdominal area.
A large prospective study of over 6,300 patients found no significant difference in postoperative complications between obese and non-obese individuals. Obesity alone does not appear to be a risk factor for postoperative complications, contrary to previous attitudes.
A new blend of cooking oil made from medium chain triglycerides (MCT) has been shown to heighten metabolism, lower cholesterol levels, and promote weight loss. In two clinical trials, participants who consumed the oil for 27 days experienced significant reductions in body fat and upper body fat, as well as improved blood lipid profiles.
Researchers discovered a significant link between obesity and periodontal disease among individuals aged 18-34 years. The association was found to be 76% higher than normal weight individuals in this age group.
Researchers have developed genetically modified fat that protects mice from obesity and insulin resistance by increasing adiponectin production. The study suggests that knocking out the Dgat1 gene perturbs the metabolic function of fat tissue, leading to increased energy expenditure and improved insulin sensitivity.