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Semen analysis

About: Semen analysis is a research topic. Over the lifetime, 4909 publications have been published within this topic receiving 143225 citations.


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Journal ArticleDOI
TL;DR: Six subjects who were evaluated by semen analysis and hormone profile at two-week intervals during ten-week basal, 20-week treatment, and post-treatment periods lasting at least ten weeks produced reversible oligozoospermia without attendant change in potency.
Abstract: We have previously shown that LHRH agonist [D-Trp Pro -Net]LHRH (LHRHA) results in reversible oligozoospermia when given to normal subjects for up to 10 weeks. A fall in plasma testosterone was accompanied by loss of libido and potency. The authors now report on 6 subjects who were evaluated by semen analysis and hormone profile at 2-week intervals during 10-week basal 20-week treatment and posttreatment periods lasting at least 10 weeks. Treatment consisted of LHRHA (50 mcg subcutaneously daily) and testosterone enanthate (100 mg intramuscularly every 2 weeks). Sperm density (mean basal 76.7 +or- 8.7x10 /ml) fell consistently in each subject to a mean nadir of 12.3 +or- 4.5x10 /ml (P /ml achieved when LHRHA was given alone. In each individual subject sperm density returned to his basal level after cessation of treatment. No consistent changes were seen in sperm motility or morphology or in semen volume. Libido and potency were maintained in all subjects. An additional 3 subjects received testosterone enanthate alone in identical dosage for 20 weeks. No change in sperm density was observed. In contrast to treatment with LHRHA alone combination treatment produces reversible oligozoospermia without attendant change in potency. (authors)

51 citations

Journal ArticleDOI
TL;DR: In 253 cycles of double IUI, performed in two consecutive days, semen volume and parameters including volume decreased in the second sample, but semen quality improved in most cases of oligo- and/or asthenozoospermia.
Abstract: As little information exists on the semen variability in infertile men, this study aimed at analysing the within-subject variability of semen from men with infertile marriages included in an intrauterine insemination (IUI) programme. Five ejaculates from each of 436 men (2180 specimens) were analysed. The within-subject coefficients of variation (CV(w)) were high for all parameters (semen volume, sperm concentration, forward motility and combined parameters), ranging from 0.73 for the total motile sperm count to 0.27 for the semen volume. Nevertheless, within-subject fluctuations were smaller than the between-subject variability, as indicated by high Intraclass Correlation Coefficient (ICC) values, which, however, significantly lowered when

51 citations

Journal ArticleDOI
TL;DR: It is found that semen lead concentration was significantly higher among the patients with lower sperm count, the first study to demonstrate that a high level of lead accumulation in semen may reduce the sperm count contributing to infertility of men without occupational exposure to lead.
Abstract: Infertility affects approximately 10–15% of reproductive-age couples. Poor semen quality contributes to about 25% of infertile cases. Resulting from the direct effect on testicular function or hormonal alterations, heavy metals exposure has been related to impaired semen quality. The objective of this study was to assess the level of lead in the seminal plasma in men without occupational exposure to lead, and to determine the relationship between semen quality and lead concentration in the semen. This is a prospective and nonrandomized clinical study conducted in University infertility clinic and academic research laboratory. Three hundred and forty-one male partners of infertile couples undergoing infertility evaluation and management were recruited to the study. Semen samples collected for the analyses of semen quality were also used for the measurement of lead concentrations. Semen samples were evaluated according to the WHO standards. All subjects were married and from infertile couples without occupational exposure to lead. There is a significant inverse correlation between the lead concentration in seminal plasma and sperm count. A higher semen lead concentration was correlated with lower sperm count, but not with semen volume, sperm motility or sperm morphology as assessed by simple linear regression. We found that semen lead concentration was significantly higher among the patients with lower sperm count. To our knowledge, this is the first study to demonstrate that a high level of lead accumulation in semen may reduce the sperm count contributing to infertility of men without occupational exposure to lead.

51 citations

Journal ArticleDOI
01 Apr 2014-Urology
TL;DR: It seems BT is a safe method without any side effect on semen analysis parameters, and detrimental effects of sertraline on some semen parameters should be considered in patients who are trying to conceive.

51 citations

Journal ArticleDOI
TL;DR: Feeding of sunflower oil or sunflower seed as fat sources can improve the quality of buffalo bull spermatozoa, according to a study investigating the effects of dietary fat on quality of liquid and frozen-thawed semen of Nili-Ravi buffalo bulls.

51 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023166
2022338
2021229
2020245
2019202
2018233