Ulcera allo stomaco? Un integratore può prevenirla
29 Mag 2009
|A cura di Franca Iannici|
La glutamina, un aminoacido naturale non essenziale, protegge lo stomaco dagli attacchi dell’infezione da Helycobacter pylori, batterio responsabile dell’ulcera gastrica. Lo ha scoperto recentemente Susan Hagen, medico e Associate Director of Research of Surgery at BIDMC e Associate Professor of Surgery at Harvard Medical School nel tentativo di cercare alternative agli antibiotici, ormai diventati inefficaci, per combattere l’infezione. Scoperto vent’anni fa, questo batterio colpisce il 6% della popolazione mondiale e più di 900.000 casi di gastriti ogni anno evolvono in cancro allo stomaco. La glutamina, che normalmente viene utilizzata come integratore nelle diete degli atleti che praticano body building, ha rivelato ottime proprietà nella prevenzione delle infezioni del batterio ed è presente in alcuni alimenti come manzo, pollo, pesce, uova latticini, verdure e alcuni frutti.
Glutamine Supplements Show Promise In Treating Stomach Ulcers
Nearly 20 years ago, it was discovered that bacteria known as Helicobacter pylori were responsible for stomach ulcers. Since then, antibiotics have become the primary therapy used to combat the H. pylori infection, which affects approximately six percent of the world population and is also a primary cause of stomach cancer. But today the bacteria is growing increasingly resistant to antibiotics.
Our findings suggest that extra glutamine in the diet could protect against gastric damage caused by H. pylori," says senior author Susan Hagen, PhD, Associate Director of Research in the Department of Surgery at BIDMC and Associate Professor of Surgery at Harvard Medical School. "Gastric damage develops when the bacteria weakens the stomach's protective mucous coating, damages cells and elicits a robust immune response that is ineffective at ridding the infection." Eventually, she notes, years of infection result in a combination of persistent gastritis, cell damage and an environment conducive to cancer development.
Glutamine is a nonessential amino acid naturally found in certain foods, including beef, chicken, fish, eggs, dairy products and some fruits and vegetables. L-glutamine – the biologically active isomer of glutamine – is widely used as a dietary supplement by body builders to increase muscle mass. "Approximately 5.5 percent of the entire global cancer burden is attributed to H. pylori infection and, worldwide, over 900,000 new cases of gastric cancer develop each year. (ScienceDaily May 2009)