Purpose: To investigate the in vitro effects of methanol leaf extract E. hirta (MLEEH) on motility, viability and morphology caprine spermatozoa.
 Methods: The effect MLEEH treatment (1.25, 2.5, 5, 10 20 mg per mL) sperm percentage total progressive abnormalities were evaluated at 1, 5 min post-treatment. Sperm revival test was used to evaluate reversibility incapacitation following...

BACKGROUND : Metronidazole (MTZ) is commonly used as an antibacterial and antiprotozoal drug. Various doses of MTZ have been reported to inhibit spermatogenic activity and sperm indices. MATERIALS AND METHODS In this experimental study, dose-dependent effects of MTZ on the structural and functional integrity of the testis and accessory reproductive organs have been investigated. Adult male mi...

In the first half of the 20 century, it was generally accepted that myosin and actin are proteins specific for muscle, and muscle contractility is a specific interaction of actin, myosin and ATP. It came as a surprise when in 1954 Hoffmann-Berling reported that water-glycerol extracted amnion fibroblasts contract upon addition of ATP. Figures CM1a and 1b show that the elongated fibroblast cells...

the aim of this study was to evaluate the effects of the addition of antioxidants (vitamin e, β- mercaptoethanol and their combination) to semen extender.  progressive motility, viability and ph of fresh ram semen were examined. ejaculate samples were collected with artificial vagina from three ghezel-merinose rams (3 years old) during non- breeding reproduction season. semen was diluted with a...

World's population is increasing at an alarming rate. Contraceptive methods for male are comparatively less common than female. Sperm motility, indicator fertilisation, regulated by a set of proteins protein phosphatase (PP) family. Among these PP1 directly related with sperm motility. SDS22 (suppressor Dis2 mutant 2) conserved and extensively expressed regulator, information regarding its func...

background: human sperm cryopreservation has proven to be very valuable. cryopreservation has effects on function, morphology and percentage of fertilization capacity of human sperm. also, it has been revealed that cryopreservation has a role in sperm dna fragmentation and infertility. in this study, viability, motility, dna fragmentation and for the first time, intracellular nitric oxide asses...

background: intrauterine insemination (iui) is one of the therapeutic approaches for infertility. the objective of this study was to evaluate dna integrity and apoptosis role in success of iui in both mild male and female factor infertility. methods: patients were divided into two groups: m (mild male factor; n=29) and f (female factor; n=31) undergoing single iui. ejaculates were analyzed and ...

Because it detects discrete changes in tissue density, ultrasound allows an early diagnosis of physiologic changes, especially when dealing with subclinical changes. aimed to evaluate the use quantitative analysis gray scale images ovine testicles as a method for testicular caused by heat stress. Testicles from ten were insulated and then evaluated regarding echogenicity, echotexture, anatomica...