http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. In recent years, a growing body of evidence has linked inflammation to the development of insulin resistance. In insulin resistance, the hormone insulin is less effective in promoting glucose uptake from the bloodstream into other tissues. Obesity is a major factor that contributes to insulin resistance, which can eventually lead to type 2 diabetes. Previous studies have shown that proinflammatory molecules found in fat tissue decreases sensitivity of tissues to insulin. http://medicalxpress.com/news/2012-06-obesity-induced-insulin-sensitivity.html Overweight and Obesity Fri, 01 Jun 2012 13:05:49 EST news257774686 Weight training at a lower intensity but with more repetitions may be as effective for building muscle as lifting heavy weights says a new opinion piece in Applied Physiology, Nutrition, and Metabolism. http://medicalxpress.com/news/2012-04-muscle-heavy-weights.html Health Thu, 26 Apr 2012 04:36:54 EST news254633670 Can lack of sleep make you fat? A new paper which reviews the evidence from sleep restriction studies reveals that inadequate sleep is linked to obesity. The research, published in a special issue of the The American Journal of Human Biology, explores how lack of sleep can impact appetite regulation, impair glucose metabolism and increase blood pressure. http://medicalxpress.com/news/2012-04-lack-linked-obesity-evidence.html Health Tue, 17 Apr 2012 10:31:35 EST news253877485 In a study conducted among 25 healthy individuals living in a controlled setting who were randomized to overconsumption of different levels of protein diets, those consuming the low-protein diet had less weight gain compared to those consuming normal and high protein diets, and calories alone, and not protein appeared to contribute to an increase in body fat, according to a study in the January 4 issue of JAMA. The researchers also found that protein did contribute to changes in energy expenditure and lean body mass. http://medicalxpress.com/news/2012-01-overeating-calories-protein-contribute-body.html Medical research Tue, 03 Jan 2012 16:35:43 EST news244830894 (Medical Xpress) -- Researchers at Genetech Inc. in South San Francisco, California, led by molecular biologist Junichiro Sonoda, have discovered that a single injection of antibodies into obese diabetic mice provided a marked and sustained improvement in their condition and a reduction in their weight. http://medicalxpress.com/news/2011-12-antibody-diabetes-obesity.html Medical research Fri, 16 Dec 2011 06:00:01 EST news243233160 Physical activity will definitely lower children's chances of developing cardiovascular disease down the road, but physical inactivity will not necessarily increase it. Findings from a recent Queen's University study shows different kinds of sedentary behaviour may have different consequences for young people's health. http://medicalxpress.com/news/2011-11-tv-viewing-poses-greater-cardiovascular.html Health Wed, 16 Nov 2011 15:53:24 EST news240681186 (Medical Xpress) -- A new study has found that protein and not sugar activates the cells responsible for keeping us awake and burning calories. The research, published in the 17 November issue of the scientific journal Neuron, has implications for understanding obesity and sleep disorders. http://medicalxpress.com/news/2011-11-pm-slump-sugar.html Neuroscience Wed, 16 Nov 2011 12:00:05 EST news240664790 When obese men take a relatively small dose of resveratrol in purified form every day for a month, their metabolisms change for the better. In fact, the effects appear to be as good for us as severe calorie restriction. Resveratrol is a natural compound best known as an ingredient in red wine. http://medicalxpress.com/news/2011-11-clinical-trial-red-wine-ingredient.html Medical research Tue, 01 Nov 2011 12:44:47 EST news239370278 A person who uses a manual wheelchair can burn up to 120 calories in half an hour while wheeling at 2 mph on a flat surface, which is three times as much as someone doing the same action in a motorized wheelchair. http://medicalxpress.com/news/2011-10-manual-wheelchair-calorie.html Health Fri, 28 Oct 2011 13:16:54 EST news239026594 A recent UT Southwestern Medical Center study found that estrogen regulates energy expenditure, appetite and body weight, while insufficient estrogen receptors in specific parts of the brain may lead to obesity. http://medicalxpress.com/news/2011-10-estrogen-brain-weight.html Medical research Thu, 20 Oct 2011 02:50:01 EST news238296281 (Medical Xpress) -- The effects of obesity - both on our bodies and on the health budget - are well known, and now, scientists are getting closer to understanding how the disease progresses, providing clues for future treatments. http://medicalxpress.com/news/2011-10-clue-obesity.html Medical research Fri, 14 Oct 2011 08:30:23 EST news237799804 (Medical Xpress) -- Reaching over to make the bed or bending to get a grocery bag might not be the typical idea of being physically active. But all those everyday movements add up and could contribute to health benefits, especially among older adults — even if it’s not clear just how much energy seniors are exerting. http://medicalxpress.com/news/2011-08-older-adults-cognitively-impaired.html Health Fri, 12 Aug 2011 07:21:02 EST news232352417 The past two decades have witnessed an epidemic spread of obesity-related diseases in Western countries. Elucidating the biological mechanism that links overnutrition to obesity could prove crucial in reducing obesity levels. In the July 26 issue of PLoS Biology, Dr. Dongsheng Cai and his research team at Albert Einstein College of Medicine describe a pathway that directs the brain to sense the body's glucose dynamics, and they find that a defect of this glucose sensing process contributes to the development of obesity and related disease. Importantly, the team also found that correction of this defect can normalize the whole-body energy balance and treat obesity. http://medicalxpress.com/news/2011-07-obesity-brain-glucose.html Medical research Tue, 26 Jul 2011 17:27:25 EST news230919926 Engaging in regular physical activity is associated with less decline in cognitive function in older adults, according to two studies published Online First by Archives of Internal Medicine, one of the JAMA/Archives journals. The articles are being released on July 19 to coincide with the International Conference on Alzheimer's Disease in Paris and will be included in the July 25 print edition. http://medicalxpress.com/news/2011-07-association-physical-cognitive-impairment.html Health Tue, 19 Jul 2011 11:31:04 EST news230293839 Scientists have known for some time that the hormone leptin acts in the brain to prevent obesity, but the specific underlying neurocircuitry has remained a mystery. Now, new research published by Cell Press in the July 14 issue of the journal Neuron reveals neurobiological mechanisms that may underlie the antiobesity effects of leptin. http://medicalxpress.com/news/2011-07-modulation-inhibitory-output-key-function.html Neuroscience Wed, 13 Jul 2011 12:28:58 EST news229778922 Research to be presented at the upcoming annual meeting of the Society for the Study of Ingestive Behavior (SSIB), the foremost society for research into all aspects of eating and drinking behavior, may explain why some antipsychotic drugs can promote overeating, weight gain, and insulin resistance. http://medicalxpress.com/news/2011-07-metabolic-effects-antipsychotic-drugs.html Medical research Tue, 12 Jul 2011 05:14:38 EST news229666465 Fat-rich food makes you fat. Behind this simple equation lie complex signalling pathways, through which the neurotransmitters in the brain control the body's energy balance. Scientists at the Cologne-based Max Planck Institute for Neurological Research and the Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases (CECAD) at the University of Cologne have clarified an important step in this complex control circuit. http://medicalxpress.com/news/2011-06-insulin-action-brain-obesity.html Neuroscience Mon, 06 Jun 2011 12:05:05 EST news226580679 A new therapeutic vaccine to treat obesity by suppressing the appetite-stimulating hormone ghrelin decreases food intake and increases calorie burning in mice, a new study finds. The results will be presented Sunday at The Endocrine Society's 93rd Annual Meeting in Boston. http://medicalxpress.com/news/2011-06-anti-obesity-vaccine-food-consumption-animals.html Other Mon, 06 Jun 2011 09:34:25 EST news226571653 Warning: Your workplace may be making you fat. http://medicalxpress.com/news/2011-05-obesity-linked-decrease-physical-workplace.html Health Tue, 31 May 2011 10:32:31 EST news226056736 The US Centers for Disease Control and Prevention estimates that almost 18% of US teens are obese. Although most experts agree that our growing obesity "epidemic" is driven by both inadequate physical activity and excessive caloric intake, implementing solutions is extraordinarily difficult. One area that has caught the attention of health researchers is the observation that trends in video game playing parallel obesity rates on a population basis. Furthermore, several studies have documented a positive association between how much time a child plays video games and his or her chance of being obese. However, correlation does not necessarily imply causality, and controlled intervention studies are required to test whether playing video games causes children to increase their food intake and/or decrease their energy expenditure. In the first such study of this kind, Canadian and Danish researchers tested their hypothesis that video game playing is accompanied by increased spontaneous food intake. http://medicalxpress.com/news/2011-05-rigorous-video-game-food-intake.html Health Tue, 17 May 2011 14:34:27 EST news224861643 A recent study accepted for publication in The Endocrine Society's Journal of Clinical Endocrinology & Metabolism (JCEM) found that higher metabolic rates predict early natural mortality, indicating that higher energy turnover may accelerate aging in humans. http://medicalxpress.com/news/2011-04-metabolic-aging.html Other Wed, 27 Apr 2011 11:10:01 EST news223120158 Spicing up your daily diet with some red pepper can curb appetite, especially for those who don't normally eat the popular spice, according to research from Purdue University. http://medicalxpress.com/news/2011-04-quantities-red-pepper-curb-appetite.html Psychology & Psychiatry Mon, 25 Apr 2011 16:16:20 EST news222966955