PURPOSE The purpose of this paper is to test the validity of hypothesis that the index finger and ring finger ratio (2D:4D) is related with men's semen quality. MATERIALS AND METHODS We set two groups of healthy young male student (mean age 23.9) who have different 2D:4D ratio from different departments of Chosun University. One group consists of 26 men whose 2D:4D ratio is higher than 1 (mea...

Currently, the assessment of sperm function in a raw or processed semen sample is not able to reliably predict sperm ability to withstand freezing and thawing procedures and in vivo fertility and/or assisted reproductive biotechnologies (ART) outcome. The aim of the present study was to investigate which parameters among a battery of analyses could predict subsequent spermatozoa in vitro fertil...

Maintaining a successful pig artificial insemination programme depends on a number of factors, including evaluation of semen characteristics. This study compared the efficacy of different extenders on the sperm motility of Kolbroek semen during short term storage at 4 °C and 25 °C. Semen was collected from Kolbroek boars using the gloved hand technique and transported to the laboratory for eval...

Reduced semen quality is commonly claimed to be one of the main signs of male infertility and thus, analysis of semen is recommended as the cornerstone of a male fertility investigation. However, to control possible sources of physiological and methodological variation, and to generate reliable information on semen quality that can be accurately compared across different laboratories, semen ana...

The main purpose of this study was to evaluate the influence of the photoperiod on the seminal traits of crossbreed wool-producing rams throughout on year period. For the effect of photoperiod two periods were considered: decreasing daylight length (summer and autumn) and increasing daylight length (winter and spring). For the study 5 Baluchi × Moghani (BL×MG) and 5 Arkharmerino × Moghani (AM×M...

STUDY QUESTION Does the seminal plasma proteomic profile and functional enrichment of gene ontology terms change after microsurgical varicocelectomy? Are there any potential targets for diagnosis or therapeutic intervention in varicocele? SUMMARY ANSWER A shift in state from a responsive-to-stress condition before varicocele correction to a responsive-to-environment condition after varicocele...

Successful sperm retrieval from ejaculates of nonmosaic Klinefelter's syndrome (KS) patients by using semen cytology examination was described in this report. The clinical parameters of KS patients with sperm compared to patients without sperm were described. One hundred and fifty-one patients were proven to suffer from KS by chromosomal analysis using G-banding. Spermatozoa were obtained from ...

The aim of the study was to determine whether there were significant 'seasonal' variations in the rhythm of sperm parameters (i.e. semen volume and sperm density) of men who reside in the tropics. A total of 7656 semen analysis results from the department of obstetrics and gynaecology of a tertiary general hospital was analysed. These samples were obtained as part of an initial screening for ma...

OBJECTIVE To evaluate the performance of the automated semen quality analyzer system for assessing sperm quality. DESIGN Double-blind prospective study. SETTING Tertiary care hospital. PATIENT(S) Fifty healthy men donated semen samples. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Precision, accuracy and agreement between automated and manual semen analysis methods was assessed for s...

Investigation of the probable cause of infertility is complex and in many instances a complicated process. Another adverse factor is stress and there is nothing more stressful than uncertainty and delay especially in couples struggling with involuntary childlessness. Unfortunately infertility investigations are frequently strung out over many months and the process is not only lengthy but frequ...