OBJECTIVE To evaluate the effectiveness of liquid nitrogen (LN(2)) vapor (indirect contact method) for the storage of human semen. DESIGN Experimental study. SETTING University hospital-based fertility center. PATIENT(S) We evaluated 150 patients with normal sperm parameters. INTERVENTION(S) Human semen (N = 120) was mixed with Semen Freezing Medium, divided into two groups, frozen, and...

BACKGROUND Ipsilateral renal agenesis associated with seminal vesicular cysts is an uncommon finding. Zinner syndrome is a rare variant of wolffian duct anomalies with a triad of seminal vesicle cyst, ipsilateral renal agenesis, and male fertility problems due to ejaculatory duct obstruction (EDO). CASE PRESENTATION A 28-year-old man with 6 years history of primary infertility presented with ...

background: leptin is a polypeptide hormone secreted by white adipose tissue in proportion to body energy. although the participation of leptin in female reproduction is well established any role in male reproductive function is at best tenuous. objective: the objective of this study was to compare the leptin concentration in human seminal plasma and then the relationships between seminal lepti...

BACKGROUND The aim of the study was to evaluate the quality of fresh raccoon dog semen and raccoon dog semen stored at 4 °C. The qualitative evaluation was based on apoptosis in the sperm cells, which was tested by the Annexin V/Pi assay, the TUNEL method and JC-1. In addition, the suitability of the semen for insemination and its effect on reproduction in females were determined in relation to...