OBJECTIVE To evaluate semen parameters in infertile Saudi Arabian men. METHODS In this retrospective study, semen analysis and other clinical data were extracted from medical records of men attending an infertility clinic. Patients were stratified according to smoking status and presence or absence of varicocele. RESULTS The study included 425 patients. Nonsmokers (n = 322) had significantl...

BACKGROUND A routine semen analysis is a first step in the laboratory evaluation of the infertile male. In addition, other tests such as measurement of reactive oxygen species can provide additional information regarding the etiology of male infertility. The objective of this study was to investigate the association of semen parameters with reactive oxygen species (ROS) in two groups: healthy d...

PURPOSE The aim of this study was to evaluate the relationship of seminal parameters with the neutrophil-to-lymphocyte ratio (NLR) and the platelet-to-lymphocyte ratio (PLR), which are inflammatory markers, in men with an abnormal semen analysis and men with normozoospermia. MATERIALS AND METHODS Fifty-seven men with abnormal semen analyses and 59 men with normozoospermia were included in thi...

BACKGROUND Several factors have been shown to influence semen parameters, one of which is sexual abstinence; a clinical criteria included in the semen evaluation to provide maximum sperm quality. The aim of the present study was to assess the effect of a daily ejaculation frequency on conventional and functional semen parameters. METHODS Semen samples were collected daily over a period of two...

BACKGROUND Exposures to endocrine-disrupting chemicals during critical phases of testicular development may be related to poorer semen parameters. However, few studies have assessed the association between childhood organochlorine (OC) exposure and adult semen parameters. OBJECTIVE We examined whether peripubertal serum OC concentrations are associated with semen parameters among young Russia...

Infertility among couples in Nigeria is causing increasing concern. Investigations have shown a relationship between abnormalities in spermatozoa/semen parameters and the incidence of male factor mediated fertility problems in couples. However, the factors responsible for the sudden increase in semen/spermatozoa abnormalities are not fully understood. In this study, blood and semen samples were...

White rhinoceroses suffer from a low rate of reproduction in captivity. This study examines the role of male reproductive function as a contributing factor. We used ultrasonography to image accessory sex glands, testis and epididymis. Electroejaculation provided 36 ejaculates from 21 rhinoceroses. Based on the percentage of progressively motile spermatozoa, semen was categorized in three groups...

PURPOSE We aimed to compare the associations between semen quality, associated reproductive indicators and the main prostate-related parameters in middle-aged men. MATERIALS AND METHODS This is a prospective study on 422 middle-aged men who underwent the screening for prostate health. Their reproductive function, semen quality and prostate-related pathologies were investigated. RESULTS Sign...

The appropriate management for male partners of couples with recurrent pregnancy loss (RPL) or recurrent implantation failure during in vitro fertilization (IVF) remains unclear. In particular, men with normal semen parameters are often ignored because the “bulk semen parameters” appear normal [1]. Despite normal semen parameters, male partners in couples with RPL or recurrent implantation fail...

The purpose of this study was to evaluate the probable effects of leptin addition in different levels to the semen extender on sperm quality (motility and motility parameters, viability, sperm membrane integrity, and DNA damage). Semen specimens were evaluated immediately after leptin addition, equilibration time and after thawing the frozen semen. Five healthy buffalo bulls (5 ejaculates from ...