Roux-en-Y gastric bypass can effective weight-loss - Nachrichten-Medical.net

Published in the American Journal of Physiology - regulatory, the discoveries, integrative and comparative physiology, suggest to some types of bariatric surgery a new mechanism, with the result in long-term weight loss.

A growing number of obese patients decide to undergo bariatric surgery to lose weight, with more than 7000 such procedures on the NHS 2009-10 run. The most common and the most effective procedure is bypass the Roux en Y gastric-which involved stapling of the stomach to a small pouch at the top are, create, directly in the small intestine, bypassing the most stomach and duodenum (the first part of the small intestine) is connected. This means that patients feel full sooner.

The new study involved data from human trials and experiments with rats. Used assigned to gastric bypass surgery or a different kind of operation, vertical banded gastroplasty, in which the lap-band is reduced researchers data from 16 participants in a study, which were in the obese people randomly, but no part of the intestine is bypassed. The participants who had gastric bypass surgery had lower percentage of fat in their diet six years after the operation, based on questionnaire.

In the experiments rat rats were given gastric bypass surgery with rats compared, given a sham operation. Rats that had gastric bypass surgery ate less food as a whole, but they ate specially less high fat food and more low fat food. If a choice between two bottles with different concentrations of fat emulsions, the rats, the gastric bypass surgery showed a lower preference for high fat concentrations compared to rats that had a sham operation.

"It seems that people have undergone the gastric bypass surgery, eating the right food, without even trying," Mr Torsten Olbers said of Imperial College in London, that the operations on patients in the study at the Sahlgrenska University Hospital in Gothenburg, Sweden carried out.

Dr. Carel le Roux, the imperial weight in the Imperial College in London, who led the research, said: "it seems that after bypass surgery, patients are hungry for good food and avoid junk food, not because they have, but because they not only like it more." "If we can find out we humans can why this happens, eat healthier without to much effort."

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