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, 6 de julio de 2011

Reduction of blood lead levels in lead-exposed mice by dietary supplements and natural antioxidants.

(Extraído de PubMed)

J Sci Food Agric. 2011 Feb;91(3):485-91. doi: 10.1002/jsfa.4210. Epub 2010 Oct 28.

Jiao J, Lü G, Liu X, Zhu H, Zhang Y.

Source

Department of Medicine, Harvard Medical School, Charlestown, MA 02129, USA.

Abstract
BACKGROUND:

Lead exposure is a global environmental problem that induces lifelong adverse health effects. Our aim was to investigate the effect of dietary supplements and natural antioxidants on blood lead levels (BLL) in lead-exposed mice, and observe their impact on the absorption of calcium, iron and zinc in vivo.

RESULTS:

All of selected dietary supplements (calcium lactate, zinc sulfate, ferrous sulfate, ascorbic acid and calcium-rich milk) and natural antioxidants (extract of Chinese wolfberry, extract of Hangzhou white chrysanthemum and antioxidant extract of bamboo leaves) have promising capacity of reducing BLL in lead-exposed mice with an reduction range from 56.2% to 65.1%. The metal ion-mediated chelating and competitively inhibitory mechanisms may elucidate their reduction effect. Besides, blood calcium, iron and zinc levels were not significantly changed in all of the experimental groups, indicating that the intake of all additives does not disturb the absorption of essential mineral elements in mice.

CONCLUSION:

All the studied additives not only effectively reduce BLL, but also maintain normal calcium, iron and zinc absorption in mice. The formulation of calcium, iron and zinc supplements and/or polyphenol and vitamin-rich antioxidants may constitute an important secondary prevention effort to reduce BLL and lead exposure.

2010 Society of Chemical Industry.

PMID:
21218482
[PubMed - indexed for MEDLINE]

No hay comentarios:

Publicar un comentario en la entrada