background: the seminal plasma is an excellent source for noninvasive detection of spermatogenesis. the seminal plasma of normospermic and azoospermic men has been analyzed for detection of spermatogenesis. methods: optical spectroscopy (attenuated total reflectance-infrared spectroscopy (atr-ir) and fourier transform infrared spectroscopy (ft-ir) has been used to analyze the seminal plasma and...

The sonication method produced a quantitatively higher release of buffalo sperm hyaluronidase than the freeze-thaw technique. The released enzyme constituted 10 p. 100 of the total enzymatic activity of the fresh semen. Seminal plasma hyaluronidase activity was not correlated with the motility score of the semen sample. Unlike cattle semen, the seminal plasma enzyme level in buffalo semen store...

Background: The aim of this study was to evaluate seminal plasma coenzyme Q10 levels and oxidative stress in patients with different types of male infertility. Materials and Methods: The study took place in the Department of Chemistry and Biochemistry, College of Medicine, Al-Nahrain University- Baghdad-Iraq from the period of November 2004 till July 2006. Sixty patients with male infertility w...

  Objective(s): Echis carinatus is one of the venomous snakes in Iran. The venom of Iranian Echis carinatus is a rich source of protein with various factors affecting the plasma protein and blood coagulation factor. Some of these proteins exhibit types of enzymatic activities. However, other items are proteins with no enzymatic activity.   Materials and Methods: In order to study the mechanism ...

Prostate-specific antigen (PSA) was purified to homogeneity from human seminal plasma by ion-exchange chromatography on a CM-Sephadex C-50 and by gel filtration on a Sephacryl S-200 column. A single 33-kDa protein band appeared in SDS-PAGE. High pressure liquid chromatography (HPLC) of the purified protein produced a single peak, while isoelectric focusing demonstrated the presence of five diff...

objective(s): echis carinatus is one of the venomous snakes in iran. the venom of iranian echis carinatus is a rich source of protein with various factors affecting the plasma protein and blood coagulation factor. some of these proteins exhibit types of enzymatic activities. however, other items are proteins with no enzymatic activity.   materials and methods: in order to study the mechanism an...

In this study, age-dependent changes of sperm quality parameters in Rutilus frisii were investigated. Also, fertilization capacity of breeders was tested using two age groups of males (3 and 4 year old breeders) and one female group (i.e. 4 year old breeders). For fertilization trials, the breeders were crossed randomly among age classes. Between the two age groups, spermatological parameters d...

the objective of this study was to investigate aspartate-amino-transferase (ast), γ-glutamyl-transferase(ggt), alkaline phosphatase (alp), lactate-dehydrogenase (ldh) and acid phosphatase (acp) activities andsemen parameters (volume, ph, concentration, total sperm number (tsn), progressive motility, dead sperm,total morphological defect (tmd) and hypo-osmotic swelling test (host)) in seminal pl...

It has long been known that seminal plasma contains factors that influence the fertilizing capacity of spermatozoa in many different ways. However, little is understood of the biochemical cascades triggered when spermatozoa and seminal plasma interact. In this study, we examined how incubation with seminal plasma affected protein tyrosine phosphorylation in human spermatozoa. Increased protein ...

semen hyperviscosity (shv) is one of the factors involved in deficiency in sperm function. this research aimed to evaluate seminal plasma total antioxidant capacity (tac) and malondialdehyde (mda) levels in infertile patients with hyperviscous and non-hyperviscous semen samples to understand whether hyperviscous semen is associated with oxidative damage in infertile subjects. in this cross sect...