نتایج جستجو برای: semen volume 098031 vs 0912 mlejaculation
تعداد نتایج: 549750 فیلتر نتایج به سال:
semen hyperviscosity (shv) is one of the factors involved in deficiency in sperm function. this research aimed to evaluate seminal plasma total antioxidant capacity (tac) and malondialdehyde (mda) levels in infertile patients with hyperviscous and non-hyperviscous semen samples to understand whether hyperviscous semen is associated with oxidative damage in infertile subjects. in this cross sect...
OBJECTIVES Possible relationship between semen quality (semen volume, sperm concentration and sperm motility) and parabens exposure was investigated in male partners of couples who visited a gynecology clinic in Tokyo for infertility consultation (n = 42, 36.8 ± 5.4 years). METHODS Semen parameters were measured according to WHO guideline at the clinic, and urinary methyl- (MP), ethyl- (EP), ...
OBJECTIVE To evaluate sperm concentration, morphology and motility of Brazilian semen donors from 1992 to 2003, in the city of São Paulo. METHODS Retrospective study analyzing 182 donor semen samples from 1992 to 2003. The first and the second donated sample were analyzed for each donor. Donor average age was 30.8 years. Means with standard errors, medians with minimum and maximum values, and...
Many studies have reported a negative impact of lifestyle factors on testicular function, spermatozoa parameters and pituitary-gonadal axis. However, conclusions are difficult to draw, since studies in the general population are rare. In this study we intended to address the early and late short-term impact of acute lifestyle alterations on young men's reproductive function. Thirty-six healthy ...
OBJECTIVE To compare the semen quality and age-specific changes in men between the 1980s and 2000s. DESIGN Prospective study. SETTING Andrology laboratory, University of Calcutta, India. PATIENT(S) A semen sample was obtained from 3729 men presenting for infertility problems in two distinct decades, that is, between 1981-85 and 2000-2006. INTERVENTION(S) Subjects with sperm count >20 x ...
The research work was conducted in District Artificial Insemination (AI) Center, Daulatpur, Khulna and Animal Biotechnology Laboratory, Khulna University, Khulna from July, 2010 to January, 2012. Semen was collected from 3 genetic groups of bulls from the AI center. Five frozen semen ampoules (1/4 Local x3/4 Friesian) was also used in this experiment. After collection, semen was observed to eva...
OBJECTIVE To review the literature on the association between male age and semen quality (semen volume, concentration, motility, and morphology) and fertility status (pregnancy rate and time to pregnancy/subfecundity). METHOD(S) Review of English language-published research over the last 20 years from January 1, 1980, through December 31, 1999, using MEDLINE and Biosis databases. Studies with...
BACKGROUND Tobacco smoking is a public health issue and has been implicated in adverse reproductive outcomes including semen quality. Available data however provides conflicting findings. The objective of this study was to evaluate the effect of tobacco smoking on semen quality among men in Ghana. METHODS In this study, a total of 140 subjects were recruited, comprising 95 smokers and 45 non-...
OBJECTIVES To provide information of semen quality among normal young Japanese men and indicate the frequency of reduced semen quality. DESIGN Cross-sectional, coordinated studies of Japanese young men included from university areas. The men had to be 18-24 years, and both the man and his mother had to be born in Japan. Background information was obtained from questionnaires. Standardised and...
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