Role of oxygen gradients in shaping redox relationships between the human intestine and its microbiota.
Free Radic Biol Med
; 55: 130-40, 2013 Feb.
Article
em En
| MEDLINE
| ID: mdl-23127782
ABSTRACT
The unique anatomy and physiology of the intestine in conjunction with its microbial content create the steepest oxygen gradients in the body, which plunge to near anoxia at the luminal midpoint. Far from static, intestinal oxygen gradients ebb and flow with every meal. This in turn governs the redox effectors nitric oxide, hydrogen sulfide, and reactive oxygen species of both host and bacterial origin. This review illustrates how the intestine and microbes utilize oxygen gradients as a backdrop for mechanistically shaping redox relationships and a functional coexistence.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Oxigênio
/
Microbiota
/
Mucosa Intestinal
/
Intestinos
Limite:
Humans
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article