Results 351 to 360 of about 1,568,056 (388)

Epididymal Sperm Count

Current Protocols in Toxicology, 2002
AbstractMaking Epididymal Sperm Counts (Yefan Wang, TherImmune Research Corporation, Gaithersberg, Maryland). Epididymal sperm counts are a widely used, simple and sensitive method of assessing the effects of male reproductive toxicants on the epididymal and/or testicular site of action.
openaire   +2 more sources

Reexamination of “normal” sperm count

Urology, 1974
A males ejaculated semen can vary up to 40% in volume sperm count and sperm motivility 100 vasectomized men were studied before vasectomy for sperm counts of single specimens; 15% of these men (all fathers of 2 or more children) had sperm counts considered by accepted standards to be infertile (below 60 million).
M.D. Fletcher C. Derrick, M.D. Jerome Johnson   +1 more
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SPERM COUNTS AND STERILITY

Journal of the American Medical Association, 1948
To the Editor:— I should like to call your attention to Dr. I. C. Rubin's article published inThe Journal(Dec. 28, 1946, page 1047) "Contraception Masking Sterility and Infertility." While most practitioners interested in the field of fertility in men would agree with Dr. Pollack and Dr. E. T.
openaire   +3 more sources

Counting Sperm Numbers

2017
Selection of the best ejaculate from the donor species depends greatly on precise calculation of the concentration of the live sperm cells. Different laboratories engaged in the semen biology work employ variety of instruments and procedures. These, coupled with the variability of the result induced by the objective assessment (inter-technician ...
Megha Pande, P. Perumal, N. Srivastava, Srikant Ghosh   +3 more
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Evaluation of Sperm Counts and Total Sperm Counts in 2543 Men Requesting Vasectomy

Andrologia, 2009
Semen analyses were performed on semen specimens from 2543 men requesting vasectomy at Planned Parenthood of Houston and the results were compared to earlier reports of semen analyses in allegedly fertile men. The comparisons suggest that mean sperm counts and mean total sperm counts are significantly lower than those reported in 1951.
J.R. Jackson, E. Steinberger, D.R. Stultz, K.D. Smith   +3 more
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Estrogens and falling sperm counts

Reproduction, Fertility and Development, 2001
Extravagant claims have been made repeatedly in recent years that human sperm counts are falling and that global exposure to environmental estrogens are responsible. The basis for these two distinct claims is reviewed. The claims of falling human sperm output, reviving an old debate, are prompted by a paper by Carlsen et al. (1992). This meta-analysis,
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Environmental estrogens and sperm counts

Pure and Applied Chemistry, 2003
The term "environmental estrogen" refers to chemical substances that exhibit some degree of estrogen-like activity. The primary emphasis for potential adverse effects resulting from exposure to environmental estrogens is on in utero exposure because such exposure can occur during critical periods of organogenesis.
Harry Fisch, Robert R. Golden
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Sperm Counts in Fertile and Infertile Men

Fertility and Sterility, 1979
Sperm counts obtained since 1973 for a series of fertile and infertile men in France were studied. The fertile men group consisted of 190 consecutive patients requesting vasectomy who had fathered at least 1 child. The husbands in the infertile couples consisted of 3119 consecutive patients consulting for infertility. In all cases semen was obtained
G. David, Daniel Schwartz, Alfred Spira, Anne Martin-Boyce, Pierre Jouannet   +4 more
openaire   +3 more sources

Honey increases sperm count in male albino rats by enhancing testosterone production.

, 2013
We investigated the effects of different doses of honey (H) and testosterone (T) on sperm count and reproductive hormones in male albino rats. Thirty-five male albino rats were randomly divided in a blinded fashion into 7 groups of 5 rats each.
T. M. Salman, I. A. Alagbonsi, Lukman Aribidesi Olayaki, S. Biliaminu, H. Salahdeen, Olumide Ayodeji Olowu   +5 more
semanticscholar   +1 more source

Dietary supplementation of antioxidants improves semen quality of IVF patients in terms of motility, sperm count, and nuclear vacuolization.

International journal for vitamin and nutrition research. Internationale Zeitschrift fur Vitamin- und Ernahrungsforschung. Journal international de vitaminologie et de nutrition, 2012
BACKGROUND This study aimed to investigate the influence of an oral antioxidative supplementation on sperm quality of in vitro fertilization (IVF) patients, as analyzed by sperm motility according to the WHO criteria and motile sperm organelle morphology
B. Wirleitner, P. Vanderzwalmen, A. Stecher, D. Spitzer, M. Schuff, Delf Schwerda, M. Bach, B. Schechinger, Nicolas Herbert Zech   +8 more
semanticscholar   +1 more source