Glutathione peroxidase in bovine semen

Abstract

The roles of selenium (Se) and glutathione peroxidase in reproductive function are poorly understood, but it is possible that they may be important for normal reproduction in the male. In rats fed a Se-deficient diet, the testes accumulated and retained more 75Se than did other tissues 1 week after injection Burk, Brown, Seely & Scaief, 1972). Autoradiographic studies of spermatozoa recovered from rat epididymides have shown that 75Se is associated with the midpiece of the spermatozoon. Gould (1970) (Li, 1975

Influence of Seminal Plasma Antioxidants and Osteopontin on Fertility of the Arabian Horse

“…Based on ANOVA, a clear association was found between the effect of age on GPx activity in stallions' seminal plasma (middle age) and its high activity in stallions with high fertility (the same middleaged stallions). GPx is important for normal male reproduction [30], it can protect sperm motility against the damaging effect of ROS through its action on H 2 O 2 [31]. However, there was a significant increase in GPx activity in seminal plasma of normozoospermic men [32].…”

Inter- and intra-individual variability of total antioxidant capacity of bovine seminal plasma and relationships with sperm quality before and after cryopreservation

“…Sperm have small concentrations of GPx activity compared to seminal plasma (Brown et al, 1977 andBilodeau et al, 2000). In the present study activity of seleno-dependent GPx was measured in seminal plasma using the specific substrate TBHP.…”

Selenium Status and GSH‐Px Activity in Semen and Blood of Boars at Different Ages Used for Artificial Insemination

“…1997). Most investigators did not find correlation between GSH‐Px activity and semen quality in bulls (Brown et al. 1977; Bartle et al.…”

“…The GSH‐Px activity has been found in the semen of several species including ram, dog, human, goat (Li 1975), bull (Brown et al 1977; Slaweta et al. 1988) and boar (Marin‐Guzman et al.…”

“…The GSH-Px activity has been found in the semen of several species including ram, dog, human, goat (Li 1975), bull (Brown et al 1977;Slaweta et al 1988) and boar (Marin-Guzman et al 1997;Lasota 2002). However, Saaranen et al (1989) and Strze_ zek et al (2000) did not find GSH-Px activity of this enzyme in boar semen.…”