background: it has been proposed that oxidative stress plays an important role in male infertility. the aims of this study were to compare seminal plasma levels of 15-f2t-isoprostane (8-iso-pgf2?), malondialdehyde (mda), and total (sum of free and bound) homocysteine (thcy) in normozoospermic vs. asthenozoospermic men, and to examine the relationships between thcy and lipid peroxidation product...

An Fn-II type group of protein present in seminal plasma of ungulates viz. heparin binding proteins (HBP) and PDC-I09 are considered as a new super family, that modulate the fertilizing ability of sperm (McCauley et al., 1999). Attempts to isolate these proteins from buffalo seminal plasma have been less successful. Although presence of proteins having af nity to heparin-Sepharose or gelatin-S...

A family of proteins designated BSP-A1, BSP-A2, BSP-A3 and BSP-30 kDa (collectively called BSP proteins for Bovine Seminal Plasma proteins) constitute the major protein fraction in the bull seminal plasma. These proteins interact with choline phospholipids on the sperm surface and play a role in the membrane stabilization (decapacitation) and destabilization (capacitation) process. Homologous p...

Background: There are several causes leading to male infertility, like oxidative stress, and nutritional deficiency of trace elements i.e., selenium and zinc. The Zinc is the following only to iron as the most abundant element in the body. Although, Zinc is found in red meat, white meat, fish, and milk; the World Health Organization (WHO) approximates that one-third of world population is defic...

Seminal plasma is comprised of the extracellular sperm milieu from spermatogenesis in the testes, through to maturation in the epididymis, as well as secretions from the accessory sex glands. Consisting primarily of proteins, this substance has a multitude of functions in mammalian reproduction. Seminal plasma influences sperm physiology, success of semen freezing, migration of spermatozoa thro...

the indian riverine buffaloes are more susceptible to variations in the environment. these variations affect seminal plasma proteins, which in turn affect fertility. this study was conducted to evaluate variations in the indian bubalus bubalis seminal plasma protein profile using two-dimensional polyacrylamide gel electrophoresis (2d-page) during winter and summer seasons, and its relation with...

Seminal plasma is composed of secretions from accessory sex glands, which are mixed with sperm at ejaculation and contribute the majority of semen volume. Seminal plasma is considered a transport and support medium for sperm in the female reproductive tract. Because seminal plasma is not required for fertilization, the importance of its constituents to the establishment of normal pregnancy has ...

evidence supports the involvement of nitric oxide (no) in a varity of male reproductive processes such as spermatogenesis, spermiogenesis, sperm motion, sperm metabolism and sperm capacitation. however, low concentration of no is essential in biology and physiology of spermatozoa, but high amounts of no is toxic and has negative effects on sperm functions. on the other hand, it is established t...

This study investigated whether specific proteins from distinct seminal plasma fractions of boars could be related to in vivo fertility. Nine boars with acceptable sperm motility and morphology for use in artificial insemination demonstrated major differences in total number born and pregnancy rate when low sperm doses (1.5 billion sperm) were used to breed a minimum of 50 gilts per boar. The 2...