Abstract

REINA BOUVET, Beatriz; VICENTA PAPARELLA, Cecilia  and  FELDMAN, Rodolfo Néstor. The oxidative stress effect on semen quality. Rev haban cienc méd [online]. 2007, vol.6, n.4, pp. 0-0. ISSN 1729-519X.

The spermatozoids have in its plasmatic membrane high concentrations of unsaturated fatty acids, vulnerable to the attack of the reactive oxygen substances. The male gamete has protective systems, the distortion between pro and antioxidizers produces “oxidative stress". Objective: to study samples of semen from infertile men, the effect of oxidative stress on the sperm membrane and the nucleus. 142 semen samples were analyzed from infertile men. The sperm study was evaluated according to OMS and 83 samples without agglutination and hiperviscosity with concentration of spermatozoids more of 5 x 10 6 /ml were chosen. The sperm membrane was studied with the Hipoosmotic Test, the maturity of chromatina with blue aniline and the nuclear AND with acridine orange. The EO was evaluated with the MOST test (motility end/motility initial) measuring the loss of motility of the spermatozoids incubated at 40ºC in a water bath for 4 hours, separating the samples in : G1 : MOST major or equal to 0.40 (normal) G2 : MOST under to 0.40 ( abnormal). The statistic analysis of the three tests showed significant difference (p<0.003). The oxidative stress affects essential structures.

Keywords : semen; oxidative stress; spermatozoids; infertility.

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