To study the influence of season on oxidative status of buffalo semen and their association with semen characteristics and seminal plasma proteins, ejaculates were collected twice a week in winter, summer and rainy seasons from six adult Bhadawari buffalo bulls. The neat semen was analyzed for semen characteristics immediately after collection and oxidative status viz. lipid peroxidation (LPO),...

Some biological aspects of semen were investigated in the Persian sturgeon, Acipenser persicus, by determination of seminal plasma indices (ionic composition and osmolality), sperm density and their relationships with sperm motility. The osmolality of seminal plasma ranged from 42.00 to 111.00 mOsmol Kg-1. The concentrations of Sodium (Na+), Potassium (K+), Chloride (Cl-), Calcium (Ca2+) and Ma...

Background Levels of serum gonadotropins have direct effects on testicular functions and spermatogenesis. Assessment of levels of serum gonadotropins from fathered subjects and infertile patients indicates wide range diversity. In this study, we tried to find out whether the levels of seminal FSH and LH affect the parameters of seminal fluid analysis (SFA) and if there is any correlation betwee...

Background: Lipopolysaccharide (LPS) is a major component of Chlamydia spp, and of all Gram-negative bacteria. The role of LPS in alteration of sperm parameters is controversial. In this study quantification of Chlamydia-specific and general lipopolysaccharide in semen was correlated to semen quality. Materials and Methods: 255 male partners of infertile couples were recruited to produce urine ...

conclusions these results suggest that serum cholesterol, phospholipids and triacylglycerols have no effect on the levels of cholesterol, phospholipids and triacylglycerols of spermatozoa and seminal plasma. our findings suggest that sperm lipid content is regulated locally within the male reproductive tract. patients and methods cholesterol, phospholipids and triacylglycerols in sperm cells, s...

Background: The lipid peroxides and their degradation products are highly toxic to spermatozoa and may play a major role in sperm dysfunction. The purpose of this study was to determine the level of lipid peroxidation as indicated by malondialdehyde (MDA) in the spermatozoa and seminal plasma of asthenozoospermic and normozoospermic males. In addition, correlation of lipid peroxidation with mot...

BACKGROUND Infertility affects approximately 10-15% of reproductive-age couples. Poor semen quality contributes to about 25% of infertile cases. Resulting from the direct effect on testicular function or hormonal alterations, heavy metals exposure has been related to impaired semen quality. The objective of this study was to assess the level of lead in the seminal plasma in men without occupati...

this experiment was conducted to evaluate the addition of seminal plasma to coated spermatozoa after 72 h. semen was collected from four taleshi rams by artificial vagina. to prepare coated spermatozoa, semen was collected in tube containing tris-fructose-15% egg yolk. after initial evaluation, the samples were mixed and centrifuged. after removal of supernatant and dilution, samples were divid...