Results 41 to 50 of about 2,311 (205)

Evaluation of Protamine Deficiency and DNA Fragmentation in Two Globozoospermia Patients Undergoing ICSI [PDF]

International Journal of Fertility and Sterility, 2007
The aim of this report has been evaluating protamine content and DNA integrity of two patients with globozoospermia undergoing Intra Cytoplasmic Sperm Injection (ICSI).Semen analysis was carried out according to WHO criteria. Protamine deficiency and DNA
Mohammad Reza Deemeh, Marziyeh Tavalaee, shahnaz razavi, Mohammad Hossein Nasr-Esfahani   +3 more
doaj   +1 more source

How exome sequencing improves the diagnostics and management of men with non-syndromic infertility. [PDF]

Andrology
Abstract Male infertility affects approximately 17% of all men and represents a complex disorder in which not only semen parameters such as sperm motility, morphology, and number of sperm are highly variable, but also testicular phenotypes range from normal spermatogenesis to complete absence of germ cells.
Stallmeyer B, Dicke AK, Tüttelmann F.
europepmc   +2 more sources

Comparison of Human Oocyte Activation Between Round-Headed Sperm Injection Followed by Calcium Ionophore Treatment and Normal Sperm Injection in a Patient With Globozoospermia

Frontiers in Endocrinology, 2020
Fertilization failure is common in patients with round-headed sperm, a form of globozoospermia. Artificial oocyte activation is able to assist oocyte fertilization after sperm injection in these patients.
Xiangli Niu, Qiuyan Ruan, Craig A. Witz, Weihua Wang   +3 more
doaj   +1 more source

Bi-allelic mutation in Fsip1 impairs acrosome vesicle formation and attenuates flagellogenesis in mice

Redox Biology, 2021
Fibrous sheath interacting protein 1 (Fsip1) is a cytoskeletal structural protein of the sperm flagellar proteome. A few studies have reported that it plays a vital role in the tumorigenesis and cancer progression. However, little is known about the role
Yaser Gamallat, Xiang Fang, Hanran Mai, Xiaonan Liu, Hong Li, Pei Zhou, Dingding Han, Shuxin Zheng, Caihua Liao, Miaomiao Yang, Yan Li, Liandong Zuo, Ling Sun, Hao Hu, Na Li   +14 more
doaj   +1 more source

Expanding the sperm phenotype caused by mutations in SPATA20: A novel splicing mutation in an infertile patient with partial globozoospermia

, 2023
Clinical Genetics, Volume 103, Issue 5, Page 612-614, May 2023.
Guillaume Martinez, Catherine Metzler‐Guillemain, Caroline Cazin, Zine‐Eddine Kherraf, Odile Paulmyer‐Lacroix, Christophe Arnoult, Pierre F. Ray, Charles Coutton   +7 more
wiley   +1 more source

Intracytoplasmic Sperm Injection Fertilization Rate Does Not Depend on the Proportion of Round-headed Sperm, Small-acrosomal Sperm, or Morphologically Normal Sperm in Patients with Partial Globozoospermia

Chinese Medical Journal, 2015
Background:. Generally, intracytoplasmic sperm injection (ICSI) may be the preferable method to treat partial globozoospermia, but whether there exist some correlations between ICSI fertilization rate and the proportion of round-headed sperm or ...
Ling-Ying Jiang, Ling-Yun Yang, Xiao-Mei Tong, Hai-Yan Zhu, Ya-Mei Xue, Wen-Zhi Xu, Yang Yang, Song-Ying Zhang   +7 more
doaj   +1 more source

Exceptional sperm cooperation in the wood mouse [PDF]

, 2002
Spermatozoa from a single male will compete for fertilization of ova with spermatozoa from another male when present in the female reproductive tract at the same time.
AH Harcourt, BA Shepherd, C Holt, D Haig, DM De Kretser, E Kim, F Hayashi, GF Friend, Harry Moore, HD Moore, HD Moore, HD Moore, HD Moore, J Sivinski, JM Bedford, Katerina Dvoráková, KC Kleene, LR Fraser, Nicholas Jenkins, PM Wassarman, R Dawkins, R Trivers, R Yanagimachi, RR Baker, RR Baker, TE Tew, TR Birkhead, TR Birkhead, V Hanak, WD Hamilton, WG Breed, William Breed, X Xu   +32 more
core   +1 more source

Dynamics of Sun5 localization during spermatogenesis in wild type and Dpy19l2 knock-out mice indicates that Sun5 is not involved in acrosome attachment to the nuclear envelope. [PDF]

PLoS ONE, 2015
The acrosome is an organelle that is central to sperm physiology and a defective acrosome biogenesis leads to globozoospermia, a severe male infertility. The identification of the actors involved in acrosome biogenesis is therefore particularly important
Sandra Yassine, Jessica Escoffier, Roland Abi Nahed, Virginie Pierre, Thomas Karaouzene, Pierre F Ray, Christophe Arnoult   +6 more
doaj   +1 more source

Effect of high intratesticular estrogen on global gene expression and testicular cell number in rats [PDF]

, 2010
Background The identification of estrogen receptors alpha and beta and aromatase in the testis has highlighted the important role of estrogens in regulating spermatogenesis.
Nafisa H Balasinor, Ryan D'Souza, Padma Nanaware, Susan Idicula-Thomas, Neelam Kedia-Mokashi, Zuping He, Martin Dym   +6 more
core   +2 more sources

The application of scanning near field optical imaging to the study of human sperm morphology [PDF]

, 2015
BackgroundThe morphology of spermatozoa is a fundamental aspect to consider in fertilization, sperm pathology, assisted reproduction and contraception.
Andolfi, Laura, Boscolo, Rita, Giolo, Elena, Luppi, Stefania, Martinelli, Monica, Prato, Stefano, Ricci, Giuseppe, Trevisan, Elisa, Troian, Barbara, Zweyer, Marina   +9 more
core   +2 more sources