AVISO IMPORTANTE


A partir del día 14 de junio de 2015, domingo, este blog dejará de ser actualizado como se ha venido haciendo hasta la fecha. La primera idea fue la de cerrar el blog, pero el deseo que que cuanto aquí se ha publicado pueda seguir siendo útil en el futuro, nos hace que mantengamos abierto el blog. Si tuviera alguna duda o quisiera hacer algún comentario, no tema hacerlo: seguiremos publicando cuantos comentarios se hagan y seguiremos contestando a las dudas que puedan surgir.
Gracias y hasta siempre.
Andrés Guerrero Serrano
-Homeópata-

miércoles, 22 de enero de 2014

Fiber-Munching Mice Avoid Asthma

(Extraído de scientificamerican.com)

Mice fed a fiber-rich diet were more resistant to allergy-induced airway inflammation, thanks to happy gut bacteria that produce fatty acids, which calm the immune system. Sophie Bushwick reports

It's important to trust your gut. Because the stomach, and the food put into it, can influence the entire body. For example, a new study finds that mice that eat lots of fiber have stronger resistance against asthma-like attacks.

For two weeks, lab mice ate one of three diets: low-fiber, or regular chow, or food supplemented with fiber-rich pectin. Then the mice were exposed to allergy-inducing dust mites. And the low-fiber rodents suffered from increased airway inflammation, while the high-fiber group experienced less of an asthmatic response.

Seems that fiber supports gut bacteria that produce anti-inflammatory molecules called short chain fatty acids. These molecules then enter the bloodstream, where they can influence the immune system. An over-reactive immune system can play a role in allergies and asthma. But the fatty acids can calm down the immune reaction. The work is published in Nature Medicine. [Aurélien Trompette et al., Gut microbiota metabolism of dietary fiber influences allergic airway disease and hematopoiesis]

Directly injecting the mice with a short chain fatty acid had a similar anti-inflammatory effect. But mice probably prefer fiber to a series of shots—and it still helps them breathe easy.

—Sophie Bushwick

No hay comentarios:

Publicar un comentario