Results 71 to 80 of about 101,802 (324)

The Sperm Chromatin Structure Assay (SCSA(®)) and other sperm DNA fragmentation tests for evaluation of sperm nuclear DNA integrity as related to fertility.

Animal Reproduction Science, 2016
Thirty-five years ago the pioneering paper in Science (240:1131) on the relationship between sperm DNA integrity and pregnancy outcome was featured as the cover issue showing a fluorescence photomicrograph of red and green stained sperm.
D. Evenson
semanticscholar   +1 more source

Association between semen microbiome disorder and sperm DNA damage

Microbiology Spectrum
DNA fragmentation index (DFI), a new biomarker to diagnose male infertility, is closely associated with poor reproductive outcomes. Previous research reported that seminal microbiome correlated with sperm DNA integrity, suggesting that the microbiome may
Junxian He, Menghui Ma, Zhenhan Xu, Jintao Guo, Haicheng Chen, Xing Yang, Peigen Chen, Guihua Liu   +7 more
doaj   +1 more source

Acridine Orange and Flow Cytometry: Which Is Better to Measure the Effect of Varicocele on Sperm DNA Integrity?

Advances in Urology, 2015
We evaluated the effect of varicocelectomy on semen parameters and levels of sperm DNA damage in infertile men. A total of 75 infertile men with varicocele and 40 fertile men (controls) were included in this study.
Essam-Elden M. Mohammed, Eman Mosad, Asmaa M. Zahran, Diaa A. Hameed, Emad A. Taha, Mohamed A. Mohamed   +5 more
doaj   +1 more source

Stallion sperm quality after combined ejaculate fractionation and colloidal centrifugation [PDF]

, 2015
This study investigated the possible additive benefit of ejaculate fractionation and colloidal centrifugation on stallion sperm quality. Using an open-end artificial vagina, the sperm-rich fraction (FRAC-1) was separated from the rest of the ejaculate ...
Crespo, F., De la Torre, J., Gosálvez, J., Johnston, S.D.   +3 more
core   +2 more sources

Sperm DNA fragmentation and oxidation are independent of malondialdheyde

Reproductive Biology and Endocrinology, 2011
Background There is clinical evidence to show that sperm DNA damage could be a marker of sperm quality and extensive data exist on the relationship between DNA damage and male fertility status.
Gargouri Jalel, Ben Hamida Afifa, Abdallah Fatma, Elleuch Henda, Chakroun Nozha, Zribi Nassira, Fakhfakh Faiza, Keskes Leila   +7 more
doaj   +1 more source

Tomato protoplast DNA transformation: physical linkage and recombination of exogenous DNA sequences [PDF]

, 1987
Tomato protoplasts have been transformed with plasmid DNA's, containing a chimeric kanamycin resistance gene and putative tomato origins of replication.
A Crossway, A Deshayes, B Reiss, BR Thomas, C-L Hsiao, CP Meredith, DT Stinchcomb, EA Shahin, FA Krens, G Scangos, HC Birnboim, HE Ruley, I Potrykus, J Messing, J Paszkowski, Jacques Hille, JD Rochaix, K Struhl, K Wernars, KC Reed, KR Folger, M Koornneef, M Perucho, Maarten Jongsma, Maarten Koornneef, MG Murray, MW Bevan, O Smithies, P Zabel, Pim Zabel, PW Rigby, R Hain, R Peerbolte, RA Anderson, RD Shillito, S Kato, SN Cohen, T Maniatis, TL Adams   +38 more
core   +4 more sources

Sperm DNA fragmentation is correlated with poor embryo development, lower implantation rate, and higher miscarriage rate in reproductive cycles of non-male factor infertility.

Fertility and Sterility, 2019
OBJECTIVE To study the implications of sperm DNA fragmentation (SDF) in intracytoplasmic sperm injection cycles for non-male factor infertility. DESIGN Prospective cohort study. SETTING Private university-affiliated IVF center. PATIENT(S) Data from
E. Borges, B. F. Zanetti, A. Setti, D. Braga, R. Provenza, A. Iaconelli   +5 more
semanticscholar   +1 more source

Chronic Hypoxia Disrupts Spermatogenesis Through ASXL2–EZH2–Mediated Microtubule Destabilization

Advanced Science, EarlyView.
This study reveals the mechanism by which chronic hypoxia impairs spermatogenesis via the ASXL2–EZH2 axis, hindering the transition of spermatids from round to elongated forms. Key findings reveal that under hypoxic conditions, downregulated ASXL2 expression reduces EZH2 binding to the CEP162 promoter, leading to decreased H3K27me3 modification and ...
Jun Yin, Mengjie Zhang, Wenying Liu, Wenlong Shen, Debao Li, Hongming Miao, Fang Deng, Gang Zhang, Yi Tian, Yi Zhang, Zhihu Zhao, Bing Ni   +11 more
wiley   +1 more source

Is there a causal association between genotoxicity and the imposex effect? [PDF]

, 2006
There is a growing body of evidence that indicates common environmental pollutants are capable of disrupting reproductive and developmental processes by interfering with the actions of endogenous hormones.
Josephine A. Hagger, Michael H. Depledge, Jörg Oehlmann, Susan Jobling, Tamara S. Galloway, Colborn T, Collins MKL, Cooke H, Depledge MH, Gibbs PE, Harring KE, Harris JO, Laruelle F, Smith BS   +13 more
core   +1 more source

The effects of aging on semen parameters and sperm DNA fragmentation

JBRA Assisted Reproduction, 2020
Introduction This study aimed to look into possible correlations between male age and different sperm parameters derived from semen analysis and sperm deoxyribonucleic acid (DNA) fragmentation.
V. Pino, Antonia Sanz, N. Valdés, J. Crosby, A. MacKenna   +4 more
semanticscholar   +1 more source