Propolis Protects Human Spermatozoa from DNA Damage  
Life Sciences, Volume 78, Issue 13 , 23 February 2006, Pages 1401-1406

Abstract: Many environmental, physiological and genetic factors have
been implicated in defective sperm function, the most common cause of
infertility. In addition, sperm preparation techniques such as
centrifugation, used prior to in vitro fertilization, are associated
with the generation of reactive oxygen species (ROS) and an increase in
the level of DNA damage.

Factors that can offer spermatozoa protection are, therefore, of great
importance. This study was designed to examine in vitro the effect of a
Chilean propolis ethanolic extract on human spermatozoa treated with
benzo[a]pyrene and exogenous reactive oxygen species. . .

The propolis extract was shown to possess the capacity to protect sperm
membrane from the deleterious action of oxidative attack, reducing
TBARS formation and LDH release. . .

For full abstract, see Apitherapy News: www.apitherapynews.com

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