background: the etiologic cause in near one third of male factor infertility is unknown. the percentage of men with idiopathic infertility who have been successfully treated by the empirical therapeutic modalities is not high. objective: the aim of this study was to assay the effect of l-carnitine on sperm parameters in patients who needs intracytoplasmic sperm injection (icsi) as a method for ...

background: various frequencies of sperm aneuploidy are reported in sperms of subfertile patients compared to normal individuals. moreover, sperm dna damage is shown to be associated with male infertility. in this study, the rate of dna damage and frequencies of aneuploidy in sperms of subfertile patients was investigated. methods: semen samples were obtained from healthy normal and subfertile ...

Fresh semen obtained from infertile men occasionally exhibits the total absence of motile sperm (100%asthenozoospermia). Vitality tests may reveal that a proportion of the immotile sperm has functional membranes, which are considered viable. An easy test for the prior determination of sperm viability may assist in sperm selection for the microinjection of oocytes. The main objective of this stu...

OBJECTIVE To evaluate seminal plasma coenzyme Q10 (CoQ10) levels and oxidative stress in patients with different types of male infertility. METHODS A case-control study was carried out in the Department of Chemistry and Biochemistry, College of Medicine, Al-Nahrain University, Baghdad, Iraq from the period of November 2004 to July 2006. Sixty patients with male infertility were recruited from...

Background: Cysteine-rich secretory protein 2 (CRISP2) is an important sperm protein and plays roles in spermatogenesis, modulation of flagellar motility, acrosome reaction, and gamete fusion. Clinical evidence shows a reduced CRISP2 expression in spermatozoa from asthenozoospermic patients, but the molecular mechanism underlying its reduction remains unknown. Herein, we carried out a study foc...