Results 191 to 200 of about 4,087 (216)

Asthenozoospermia/Teratozoospermia and Infertility

Archives of Andrology, 1990
Abnormal spermiograms with asthenozoospermia and teratozoospermia are often classified as subfertile, and the cause of these findings has been obscure. A new method, the 8-h in vitro motility profile test (MPT), showed a significant difference in motility profile between 130 fertile men and men of infertile couples.
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Teratozoospermia and its effect on male fertility potential

Andrologia, 1999
Teratozoospermia and its significance for male fertility problems is discussed. Different points of view and available information concerning the phenomenon of teratozoospermia have been presented. Ongoing debate about the influence of sperm morphology on male infertility and IVF results emphasizes the fact that when sperm morphology is evaluated using
M, Szczygiel, M, Kurpisz
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Teratozoospermia and asthenozoospermia are associated with specific epigenetic signatures

Andrology, 2016
Semen analysis is commonly used as a tool to assess the fertility potential of a male, despite its relatively low predictive power. In this study, we have assessed associations between semen analysis findings (low count, low motility, low viability, poor sperm penetration assay results, poor morphology, and increased DNA damage) and DNA methylation ...
T G, Jenkins, K I, Aston, J M, Hotaling, M B, Shamsi, L, Simon, D T, Carrell   +5 more
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A Cascade of epistatic interactions regulating teratozoospermia in mice

Mammalian Genome, 2015
Infertility in humans and subfertility in domestic animals are two major reproductive problems. Among human couples, ~15% are diagnosed as infertile, and males are considered responsible in about 50% of the cases. To examine male fertility, various sperm tests including analyses of sperm morphology, sperm count and sperm mobility are usually performed.
Keitaro, Hirawatari, Naoto, Hanzawa, Ikuo, Miura, Shigeharu, Wakana, Hideo, Gotoh   +4 more
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Genetic Factors of Polymorphic Teratozoospermia Development in Humans

Генетика / Russian Journal of Genetics
Nonspecific (polymorphic) teratozoospermia is a common male fertility, when the proportion of morphologically normal spermatozoa is lower than the reference values, while several types of morphological abnormalities of spermatozoa in different ...
M. Kleshchev
semanticscholar   +1 more source

Expression of NOX5 in human teratozoospermia compared to normozoospermia

Andrologia, 2012
Spermatozoa are capable of producing small amounts of reactive oxygen species (ROS), and sperm in teratozoospermia generate more ROS than sperm in normozoospermia. The source of ROS production in ejaculated human sperm has not been fully clarified.
E, Ghani, S, Keshtgar, M, Habibagahi, A, Ghannadi, M, Kazeroni   +4 more
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Teratozoospermia and in-vitro fertilization: a randomized prospective study

Human Reproduction, 1994
A prospective randomized study was conducted to assess the prognostic value of sperm morphology in an in-vitro fertilization (IVF) programme, using strict criteria. The first group (T, teratozoospermic) included 32 couples with an isolated teratozoospermia in the male partner (morphology < 9% normal).
W, Ombelet, F L, Fourie, H, Vandeput, E, Bosmans, A, Cox, M, Janssen, T, Kruger   +6 more
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Metabolic profiling of seminal plasma from teratozoospermia patients

Journal of Pharmaceutical and Biomedical Analysis, 2020
Teratozoospermia is one of conditions that can cause male infertility. The mechanism of teratozoospermia remains unclear. The knowledge of the metabolites in human seminal plasma (HSP) is meaningful for the pathological study of teratozoospermia.
Bahareh, Mehrparvar, Saeed, Chashmniam, Fatemeh, Nobakht, Mehdi, Amini, Amin, Javidi, Arash, Minai-Tehrani, Babak, Arjmand, Kambiz, Gilany   +7 more
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[Genetic aspects of the teratozoospermia].

Gynecologie, obstetrique & fertilite, 2009
Recent mutation identification in well-known sperm defects gives proof that there are genetic causes of infertility. Familial forms and some features of the spermograms lead toward the genetic origin of these syndromes. For each syndrome, several clinical aspects and partial forms were described.
M-R, Guichaoua, C, Geoffroy-Siraudin, G, Mercier, V, Achard, O, Paulmyer-Lacroix, C, Metzler-Guillemain   +5 more
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[DAZL gene polymorphisms and astheno-teratozoospermia].

Zhonghua nan ke xue = National journal of andrology, 2013
To investigate the association between single nucleotide polymorphism (SNP) of the DZAL gene in infertile Han Chinese males with astheno-teratozoospermia.We collected semen samples from 173 infertile Han Chinese men with astheno-teratozoospermia (case group) and 175 age-matched normal male volunteers (control group) for semen routine and morphological ...
Lu-Wei, Ye, Qing-Feng, Yu, Xue-Xi, Yang, Jing-Ping, Li, Xiao-Qiang, Wu, Yong-Hai, Zhang, Xiang-Ming, Mao   +6 more
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