current study was aimed to evaluating protective effects of cornus mas fruit extract (cmfe) in mice treated with methotrexate (mtx). for this purpose, 48 young mature male mice were divided into 6 groups. control group received only normal saline (0.1 mlper day, intraperitoneally), and the second group was administered mtx (20 mg kg-1 perweek, intraperitoneally). the third, fourth and fifth gro...

introduction: standard semen analysis is routinly used to evaluate the male fertility, however some researchers belive that sperm functional test should also be used with standard semen analysis for more precise evaluation of male fertility. the aim of this study was to consider the relation between different nuclear maturity tests and in vitro fertilization, in order to select the nuclear matu...

background: sperm selection is generally used to describe methods for separation of spermatozoa for in-vitro-assisted reproduction. few studies reported relation in vivo fertility and semen parameters after selection of fertile spermatozoa; hence, our research attempt to assess different semen parameters after post-thaw (pt) or after selecting sperm sample (ssp), using density gradient separati...

Reports indicate that one of the causes of harmful to the genital system, especially the testes is stress. Result of damage to testicular quality certainly will affect the quality of sperm fertility. Stress could be created secondarily after some pathological conditions such as neurological diseases or environmental factors. One of the causes of stress could be scary voices, such as cat voice f...

background: the utilization of immature oocytes derived from stimulated cycles could be of great importance, specially for urgent fertility preservation cases. the aim of the current study was to determine whether in-vitro maturation is more successful before or after the vitrification of these oocytes. materials and methods: the study was performed in a private ivf center. 318 germinal vesicle...