Results 61 to 70 of about 3,548,930 (329)

Deficiency of Mkrn2 causes abnormal spermiogenesis and spermiation, and impairs male fertility. [PDF]

, 2016
Although recent studies have shed insights on some of the potential causes of male infertility, new underlining molecular mechanisms still remain to be elucidated.
Ge, Xin, Guo, Xue-Jiang, He, Jun, Jiang, Bing-Hua, Jiang, Cheng-Fei, Li, Dong-Mei, Li, Wei, Lin, Marie, Liu, Ling-Zhi, Liu, Xue, Qian, Xu, Qian, Ying-Chen, Sha, Jia-Hao, Shen, Hua, Shi, Zhu-Mei, Wang, Lin, Wang, Min, Yin, Yu, Zheng, Bo, Zheng, Ji-Tai   +19 more
core   +2 more sources

Both reduced ovarian reserve and severe semen alterations are overrepresented in couples seeking assisted reproductive technology treatment for the first time: a cross-sectional study

Reproductive Health, 2023
Background Once a mate choice decision has been made, couples that fail to reach a live birth in natural and/or intrauterine insemination (IUI) cycles will likely visit fertility clinics seeking assisted reproductive technology (ART) treatment.
Juan J. Tarín, Eva Pascual, Miguel A. García-Pérez, Aitana Monllor-Tormos, Antonio Cano   +4 more
doaj   +1 more source

Effect of metabolic and antioxidant supplementation on sperm parameters in oligo-astheno-teratozoospermia, with and without varicocele: a double-blind placebo-controlled study [PDF]

, 2018
Since sperm require high energy levels to perform their specialised function, it is vital that essential nutrients are available for spermatozoa when they develop, capacitate and acquire motility.
Agarwal, A., Antonini, G., Busetto, G. M., De Berardinis, E., Del Giudice, F., Gentile, V., Micic, S., Ragonesi, G., Virmani, A.   +8 more
core   +1 more source

Lycopene and male infertility

Asian Journal of Andrology, 2014
Excessive amounts of reactive oxygen species (ROS) cause a state of oxidative stress, which result in sperm membrane lipid peroxidation, DNA damage and apoptosis, leading to decreased sperm viability and motility. Elevated levels of ROS are a major cause
Damayanthi Durairajanayagam, Ashok Agarwal, Chloe Ong, Pallavi Prashast   +3 more
doaj   +1 more source

Testicular expression of TDRD1, TDRD5, TDRD9 and TDRD12 in azoospermia. [PDF]

, 2020
BACKGROUND: Tudor domain-containing proteins (TDRDs) play a critical role in piRNA biogenesis and germ cell development. piRNAs, small regulatory RNAs, act by silencing of transposons during germline development and it has recently been shown in animal ...
Aghaei, M, Alipourfard, I, Babakhanzadeh, E, Ghasemi, N, Hosseinnia, M, Jamshidi, Y, Khodadadian, A, Mehrjardi, MYV, Nazari, M, Rostami, S   +9 more
core   +1 more source

Diagnosing male infertility

BMJ, 2018
### What you need to know Around 1 in 7 couples in the UK1 seek treatment for infertility when they are unable to conceive, despite regular unprotected intercourse. Male infertility describes any factor in men that may prevent a couple from becoming pregnant. In nearly half of infertility cases, the male partner has suboptimal sperm parameters.23 Some
Wall, J, Jayasena, CN
openaire   +4 more sources

Diabetes-induced male infertility: potential mechanisms and treatment options

Molecular Medicine
Male infertility is a physiological phenomenon in which a man is unable to impregnate a fertile woman during a 12-month period of continuous, unprotected sexual intercourse.
Runchun Huang, Jiawang Chen, Buyu Guo, Chenjun Jiang, Weiming Sun   +4 more
semanticscholar   +1 more source

The Use of Non-Apoptotic Sperm Selected by Magnetic Activated Cell Sorting (MACS) to Enhance Reproductive Outcomes: What the Evidence Says

Biology
Sperm selection of the most competent sperm is a promising way to enhance reproductive outcomes. Apoptosis is the programmed cell death process to maintain tissue homeostasis, and MACS sperm selection of non-apoptotic cells enables the removal of ...
Nicolás Garrido, María Gil Juliá
doaj   +1 more source

Infertility in the Moroccan population: an etiological study in the reproductive health centre in Rabat

The Pan African Medical Journal, 2018
The causes of infertility vary widely and differ between regions and within countries. There is no report on this subject in Morocco. Therefore, the aim of this study was to determine the causes of infertility in Moroccan infertile couples and to compare
Amal Benbella, Siham Aboulmakarim, Houyam Hardizi, Asmaa Zaidouni, Rachid Bezad   +4 more
doaj   +1 more source

A de novo paradigm for male infertility

bioRxiv, 2021
De novo mutations are known to play a prominent role in sporadic disorders with reduced fitness. We hypothesize that de novo mutations play an important role in severe male infertility and explain a portion of the genetic causes of this understudied ...
J. Veltman, M. Oud, R. Smits, H. Smith, F. Mastrorosa, G. Holt, B. Houston, P. D. Vries, B. Alobaidi, L. Batty, Hadeel Ismail, Jackie Greenwood, H. Sheth, Aneta Mikulasova, G. Astuti, C. Gilissen, K. McEleny, Helen Turner, Jonathan Coxhead, Simon Cockell, D. Braat, Kathrin Fleischer, K. D’Hauwers, Ewout Schaafsma, L. Nagirnaja, Donald F. Conrad, C. Friedrich, S. Kliesch, K. Aston, A. Riera-Escamilla, C. Krausz, C. Gonzaga‐Jauregui, Mauro Santibanez-Koref, David Elliott, L. Vissers, F. Tüttelmann, Moira K. O’Bryan, Liliana Ramos, M. Xavier, G. V. D. Heijden   +39 more
semanticscholar   +1 more source