Mastering Leptin the Key to Weight Loss

Leptin leapt into the headlines when it was identified in 1995 as a protein that triggers weight loss in mice. Leptin (the Greek term for thin) is a hormone released by your fat cells. When you lose fat, leptin levels drop and when you get fat, leptin levels rise. recent research on leptin has revealed what is likely to be essential to the control of appetite, weight loss and weight regulations by kyle leon. Advances in research leptin and its role in the control of obesity will lead to reductions in diabetes, coronary heart disease and many types of cancer, and all of which are increased in obesity.

American adults and surplus weight more than 30 percent are obese. currently 50 million Americans suffer from metabolic syndrome - a disease associated with obesity and encompassing coronary artery disease and type 2 diabetes. leptin affects our weight and our appetites. leptin levels rise just before a meal and fall when people are full. It is now known that leptin not only can affect the chemical response that affects how hungry you but also can affect the wiring of your brain. scientists are interested in whether leptin can be manipulated to help people, especially hyper- the weight of the person, to lose weight and not put it back. They know that leptin is released by fat cells and tells the brain how much fat in the body.

Once leptin has been secreted by your fat cells, it travels to the hypothalamus. This is the part of your brain that controls eating behavior. defects in leptin signaling leads to obesity, overeating, and decreased energy output. Normally, when leptin levels in the blood go up, the brain signals us to stop eating . But since obesity is not the result of a lack of leptin, it is a response to the lack of leptin, and obese individuals tend to have more and larger leptin-producing fat cells than thinner people, their leptin levels increase substantially each pound gain more weight. This picture below. mice lacking leptin ate voraciously and grew enormously fat; leptin injections that made ​​them stop eating and slim down.

The discovery led researchers to think that fat people may lack leptin, and this can make them lose weight. but this is not it. Scientists found that most fat people have had a lot of leptin, and gives them more with little effect. (The New York Times 11/26/2002). researchers at the Oregon National Primate Research Center conducted a study in mice involving two separate groups that were fed high-fat and low-fat diets . the high-fat diet group developed symptoms of diabetes and obesity while the low-fat diet group was not. The researchers tested cells that conduct nerve impulses and found the cells act as if there is no leptin present, although levels are 40 times higher than in normal mice.

(Cell Metab. March 2007; 5 (3) :181-94). This is because obese people becoming resistant to leptin's signal. when the brain fails to interpret the hormone leptin's signal incorrectly thinks that more fat is needed, although we have enough, and the fat begins to accumulate during metabolism slows down. Some scientists either leptin is not transported through the blood-brain barrier properly or the brain does not interpret the signal correctly. 's regular discovery of hormones involved in regulating body weight has are diverse and rapidly expanding field.