Results 161 to 170 of about 3,927 (181)

Human Spermatozoal Nuclear Maturity in Normozoospermia and Asthenozoospermia

Archives of Andrology, 1988
Ejaculated human spermatozoa were studied to assess their nuclear maturity. After SDS or SDS-EDTA treatment, asthenozoospermic semen had a lower resistance to decondensation than normozoospermic semen and contained more stained immature nuclei after aniline blue staining. It showed a higher uptake of ethidium bromide, specific for DNA.
D, Colleu, D, Lescoat, D, Boujard, D, Le Lannou   +3 more
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Sperm metabolomic profiles of varicocele-associated asthenozoospermia

Journal of Pharmaceutical and Biomedical Analysis
Varicocele is a leading cause of male infertility, with asthenozoospermia being a common phenotype. The metabolic basis of varicocele-induced asthenozoospermia remains poorly understood, necessitating a comprehensive metabolic profiling study. This GC-MS-based metabolomic study investigated sperm metabolic profiles across three cohorts: healthy ...
Yuyang, Hou, Yupeng, Wang, Mengyue, Pan, Di, An, Mengling, Zhong, Qi, Zhang   +5 more
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Nutrient patterns and asthenozoospermia: a case-control study

Andrologia, 2016
The association of dietary nutrient patterns and sperm motility is not yet well elucidated, and previous studies have just focused on the isolated nutrients. This case-control study examined the association of nutrient patterns with asthenozoospermia among Iranian men.
G, Eslamian, N, Amirjannati, B, Rashidkhani, M-R, Sadeghi, A, Hekmatdoost   +4 more
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NT-proCNP as a new indicator of asthenozoospermia

Advances in Medical Sciences, 2017
C-type natriuretic peptide (CNP) is a proinflammatory peptide. The highest concentration of CNP is found in male reproductive organs. This study aims to analyze the role of N-terminal C-type natriuretic propeptide (NT-proCNP) as a new indicator of asthenozoospermia.Semen was collected after 3-5 days of sexual abstinence from 86 men.
Ryszard, Tomasiuk, Ricardo, Faundez, Marek, Cacko, Małgorzata, Mikaszewska-Sokolewicz, Andrzej, Cacko, Michał, Rabijewski   +5 more
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[Oral kallikrein-therapy of asthenozoospermia].

Fortschritte der Medizin, 1977
Over a period of 7 weeks 51 men with idiopathic asthenozoospermia were treated with Kallikrein (600 Kallikrein units per day). A statistically significant improvement of sperm motility was observed with a maximum 1 month after the therapy. The conception rate was 31%.
T, Kienitz, W B, Schill
openaire   +1 more source

Hyperprolactinemia in Men with Asthenozoospermia, Oligozoospermia, or Azoospermia

Archives of Andrology, 1997
The role of serum prolactin (PRL) in male infertility is still unclear. To assess the clinical significance of PRL determination during infertility studies, serum hormones and semen samples from 167 men attending the Andrology Clinic were analyzed, and PRL seric values were correlated with volume, sperm count, motility, viability, and morphology.
G, Merino, S, Carranza-Lira, J C, Martinez-Chéquer, E, Barahona, C, Morán, J A, Bermúdez   +5 more
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[CatSper1 protein and idiopathic asthenozoospermia].

Zhonghua nan ke xue = National journal of andrology, 2011
To investigate the role of the cation channel of sperm 1 (CatSper1) protein in the pathogenesis of idiopathic asthenozoospermia.Sperm samples from patients with idiopathic asthenozoospermia were separated by Percoll discontinuous density gradients, and the distribution and expression of the CatSper1 protein were determined by immunocytochemistry ...
Wen-bin, Wu, Yu-shan, Li, Xiao-xia, Feng, Quan-xian, Wang, Xue-min, Gao, Xian-feng, Yang, Zhou-hui, Pan, Lin, Sun   +7 more
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L- carnitine in idiopathic asthenozoospermia: a multicenter study

Andrologia, 2009
The aim of the study described here was to evaluate any possible effect of L-carnitine on spermatozoal motility in a group of patients with unexplained asthenozoospermia in four different infertility centres. One hundred patients received 3 g d-1 of oral L-carnitine for 4 months.
Costa M., Canale D., Filicori M., D’Iddio S., LENZI, Andrea   +4 more
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Electron microscopy in the investigation of asthenozoospermia

British Journal of Biomedical Science, 2010
Asthenozoospermia, defined as low sperm motility, is a significant cause of subfertility in men. Its origins are diverse and in some instances cannot be ascertained. However, severely reduced motility can often be associated with abnormalities in the structure of the sperm tails, which can only be detected by transmission electron microscopy (TEM).
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Expression of NDUFA13 in asthenozoospermia and possible pathogenesis

Reproductive BioMedicine Online, 2017
Asthenozoospermia is a common cause of male infertility, which is characterized by reduced forward motility of spermatozoa. The cause and pathogenesis of asthenozoospermia are not fully understood. The purpose of this study was to investigate the expression of nicotinamide adenine dinucleotide (NADH) dehydrogenase (ubiquinone) 1 alpha subcomplex, 13 ...
Yang, Yang, Laiyang, Cheng, Ying, Wang, Yilong, Han, Jin, Liu, Xiaohui, Deng, Lan, Chao   +6 more
openaire   +2 more sources