Results 221 to 230 of about 41,510 (263)
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Semen Quality and In‐vitro Fertilization
Australian and New Zealand Journal of Obstetrics and Gynaecology, 1989Summary: The standard sperm parameters, and a newly developed assay, the hypoosmotic swelling (HOS) test, of 208 ejaculates were correlated with in vitro fertilization (IVF) outcome to assess their predictive value of the fertilizing capacity of spermatozoa.
R S, Jeyendran +4 more
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Bacterial infection and semen quality
Journal of Reproductive Immunology, 2005We have analyzed two infertile male cohorts with (n=39) and without genital tract infection (n=14) comparing their selected seminological parameters with healthy controls (n=30). Genital tract infection (GTI) has been defined by the presence of leukocytes and pathological bacterial strains identified with Bio-Merieux tests.
D, Sanocka-Maciejewska +2 more
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Cigarette smoking and semen quality
Fertility and Sterility, 1982In order to further investigate the findings of earlier studies the authors conducted a study of semen quality in 437 consecutively seen male partners of infertile couples and excluded 181 men who exhibited factors which could have influenced semen quality. A group of 97 men with varicocele was considered separately. Of the remaining 159 men 101 were
L J, Rodriguez-Rigau +2 more
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Semen quality in the 21st century
Nature Reviews Urology, 2017Although semen quality is an important determinant of fertility, defining clear thresholds for normal ranges has proven difficult. According to 'time to pregnancy' studies, fecundity starts to decline when sperm concentrations fall below 30-55 × 106/ml, whereas the WHO criterion for normal values is currently 15 × 106/ml. Multiple studies over the past
Helena E, Virtanen +2 more
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Cigarette smoking and semen quality
Fertility and Sterility, 1996To determine whether cotinine levels provide stronger evidence for an association between smoking and semen quality than the number of cigarettes smoked per day or years smoked controlling for potential confounders and effect modifiers.Cross-sectional study.Male volunteers at the Reproductive Endocrinology-Fertility Laboratory.Eighty-eight men (ages 18
M F, Vine, C K, Tse, P, Hu, K Y, Truong
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Aluminum content of human semen: Implications for semen quality
Reproductive Toxicology, 2014A deterioration of human semen quality has been observed over recent decades. A possible explanation could be an increased exposure to environmental pollutants, including aluminum. Our aim was to measure the aluminum concentration in the semen of 62 patients and to carry out a preliminary evaluation on its impact on specific semen parameters.
J P, Klein +4 more
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Detection of macrophages in rabbit semen and their relationship with semen quality
Theriogenology, 2017We aimed at the evaluating the occurrence of macrophages in rabbit semen and finding possible relationship between macrophage concentration and spermatozoa quality. The concentration of macrophages in semen samples from broiler rabbit males of lines M91 and P91 (n = 30) without overt evidence of genital tract infections was determined using monocyte ...
Lenka, Kuželová +3 more
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Semen quality and semen storage.
2009AbstractPoultry semen quality and semen storage respectively can be considered in terms of the intrinsic components of spermatozoa and seminal plasma and their properties, and of the oviducal sperm-storage systems and their regulation. However, the focus of this chapter is on the technologies for assessing semen quality and for storing semen in vitro ...
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Effect of paracetamol on semen quality
Andrologia, 2017Several published studies, both direct and indirect, have connected paracetamol, also named acetaminophen, a commonly used over-the-counter analgesic and antipyretic medication, with semen quality and male infertility, although as yet this connection is unclear.
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SIGNIFICANCE OF SEMEN CULTURES FOR MEN WITH QUESTIONABLE SEMEN QUALITY
Archives of Andrology, 2006Semen cultures often yield inconclusive results probably due to bacterial contaminants. We were able to isolate enteric pathogens with greater specificity by comparing two cultures from the same individual: one obtained from the midstream urine and the other from ejaculate obtained following midstream urine collection and eliminating the bacteria ...
M, Damirayakhian +2 more
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