Results 141 to 150 of about 3,612 (170)

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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Asthenozoospermia and the human sperm mid-piece

Human Reproduction, 1995
This study provides a quantitative comparison between surface and ultrastructural features of motile spermatozoa in asthenozoospermic and fertile men. The study group consisted of 10 individuals with persistent asthenozoospermia and the controls were 10 fertile donors to a sperm bank.
A J, Mundy, T A, Ryder, D K, Edmonds
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In Vivo Therapies for Asthenozoospermia

1999
Motility is one of the major sperm characteristics needed to achieve a pregnancy in vivo. Several factors can affect sperm motility, some of which are relatively well known, such as ultrastructural tail defects (see previous chapters in this book).
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Septins as Diagnostic Markers for a Subset of Human Asthenozoospermia

Journal of Urology, 2008
Septins are the major constituents of the annulus, a submembranous ring that separates the middle and principal pieces of spermatozoa. We previously reported its essential role in spermiogenesis and reproduction in mice. In the current study we investigated septin abnormality in infertile men.Semen samples from 108 infertile patients and 21 healthy ...
Yoshio, Sugino, Kentaro, Ichioka, Takeshi, Soda, Masafumi, Ihara, Makoto, Kinoshita, Osamu, Ogawa, Hiroyuki, Nishiyama   +6 more
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MicroRNA profiling in spermatozoa of men with unexplained asthenozoospermia

Andrologia, 2019
Asthenozoospermia (AZS) which is characterised by decreased sperm motility is one of the main causes of male infertility. Recent studies demonstrated altered microRNAs (miRNAs) in total semen, seminal plasma and spermatozoa of asthenozoospermic men.
Zohreh Heidary, Majid Zaki‐Dizaji, Kioomars Saliminejad, Hamid Reza Khorram Khorshid   +3 more
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SEMG1 may be the candidate gene for idiopathic asthenozoospermia

Andrologia, 2013
Asthenozoospermia (AZS) is a major cause of male infertility, aetiology of which is reported to be related with gene mutation or deletion. However, studies on candidate genes for AZS are very scarce. In this study, we examined the gene expression profiles of asthenozoosperm. Gene expression profile analyses with microarray on spermatozoa specimens from
Q, Yu, Q, Zhou, Q, Wei, J, Li, C, Feng, X, Mao   +5 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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Identification of a homozygous GFPT2 variant in a family with asthenozoospermia

Gene, 2019
Asthenozoospermia (ASZ) is a condition characterized by reduced sperm motility in semen affecting approximately 19% of infertile men. Major risk factors, particularly gene mutations, still remain unknown. The main aim of the present study was to identify novel genes and mutations that may influence human sperm motility.Whole-exome sequencing (WES) was ...
Askari, Masomeh, Kordi-Tamandani, Dor Mohammad, Almadani, Navid, Mcelreavey, Ken, Totonchi, Mehdi   +4 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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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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