background: there are many studies focused on long or short storage time of epididymal sperm (eps) of different species. there are limited studies on preservation or cryopreservation of the domestic goat eps. objective: the aim of the present study was to evaluate the effects of ex vivo cold-storage on freezing of eps from goat (capra hircus). materials and methods: in a split-plot design the c...

Extracellular microvesicles present in the epididymal fluid have been named epididymosomes. Many epididymosome-associated proteins are transferred to spermatozoa during their maturation in the excurrent duct. Epididymosomes are heterogeneous, with their size varying between 50 and 250 nm. Two distinct population of epididymosomes characterized by different protein compositions and diameters hav...

Short-term hyperthyroidism, induced by daily administration of T3 (20 microg/100g body weight) for one, three, and five days consecutively, modulates oxidative stress and antioxidant defence parameters in mitochondrial and postmitochondrial fractions of testis in adult rats. Alteration in antioxidant defences along with oxidative stress parameters in testis by thyroid hormone was found to be as...

The present study was aimed to study the effects of hyperlipidaemia on the histology of various reproductive organs. The chronic oral administration of cholesterol diet (400 mg/kg bodyweight/day for 60 day) induced hyperlipidaemia in male rabbits. It showed severe degeneration in germinal epithelium. Few spermatocytes could be seen, but the number was decreased. The seminiferous tubules were wa...

The purpose of this study was to evaluate 2 methods of semen collection that could be used as terminal procedures in stallions with irreparable conditions, such as fractures or colic. Electroejaculation was attempted under general anesthesia. Forty-eight hours later, the ponies were castrated and 2 different epididymal sperm collection techniques were attempted by using a flushing or floating m...

We have investigated the toxic effects of trichloroethylene (TCE) on the epididymis and epididymal sperm in mice. Mice were exposed to TCE (1000 ppm) by inhalation for 6 h/day for 5 days/week for 1 to 4 weeks. Segments of the epididymis (caput, corpus and cauda) were examined by light and electron microscopy. At the light microscopic level, degeneration and sloughing of epithelial cells were ev...

Objective: To investigate the of epididymal width in identifying non obstructive azoospermia (NOA) and obstructive azoospermia (OA). Methods: Using scrotal ultrasound to compare difference of epididymal width between OA (n=18) and NOA (n=10) patients. Results: In the patients with OA average bilateral epididymal width is 0.7+0.1 cm, which is higher than the NOA patients (P<0.05) by ultrasonic m...