Results 61 to 70 of about 1,839,558 (201)

SPERM MORPHOLOGICAL ABNORMALITIES AS INDICATORS OF DNA FRAGMENTATION AND FERTILIZATION IN ASSISTED REPRODUCTION

Zdravniški Vestnik, 2018
Background. To determine the relationship between sperm morphological abnormalities, DNA fragmentation and fertilization rate in IVF and ICSI. Methods. Sperm samples from 10 IVF and 20 ICSI cycles were analyzed.
Barbara Dariš, Veljko Vlaisavljević
doaj   +1 more source

Comparison of three sperm selection methods for ICSI-DGC, Cumulus column, and incubation with supernatant product of adipose tissue-derived adult stem cells: An experimental study

International Journal of Reproductive BioMedicine, 2021
Background: The examination of sperm parameters and sperm DNA integrity are necessary for male fertility expression. These parameters can be affected by method of sperm separation.
Zeynab Yazdanpanah, Mitra Heydari Nasrabadi, Zeynab Piravar   +2 more
doaj   +1 more source

Sperm competition and sperm length in shorebirds [PDF]

, 1999
We investigated how sperm morphology varies across 16 species of shorebirds in the Scolopacidae, Charadriidae, and Jacanidae. Sperm were significantly longer in nonmonogamous than in socially monogamous species.
Briskie, J V, Johnson, D D P
core  

Effect of bacterial infection on sperm quality and DNA fragmentation in subfertile men with Leukocytospermia

BMC Molecular and Cell Biology, 2021
Background Although bacterial infections have been recognized as a possible cause of male infertility, the effect of bacterial infections on sperm quality and sperm DNA fragmentation remains controversial.
Fatemeh Eini, Maryam Azizi Kutenaei, Fayegheh Zareei, Zeinolabedin Sharifian Dastjerdi, Maryam Hosseinzadeh Shirzeyli, Ensieh Salehi   +5 more
doaj   +1 more source

DNA fragmentation and sperm head morphometry in cat epididymal spermatozoa

, 2014
Sperm DNA fragmentation is an important parameter to assess sperm quality and can be a putative fertility predictor. Because the sperm head consists almost entirely of DNA, subtle differences in sperm head morphometry might be related to DNA status ...
V. Vernocchi, A. Lange Consiglio, M. Morselli, M. Faustini, G.C. Luvoni   +4 more
core   +1 more source

Sperm swim-up techniques and DNA fragmentation [PDF]

Human Reproduction, 2001
Swim-up techniques for sperm separation may have detrimental effects on sperm DNA. We wished to determine whether the normal swim-up method with centrifugation used in our laboratory, which involves a centrifugation step, was harmful to sperm compared with swim-up without centrifugation.Semen samples were obtained from patients undergoing IVF or ...
E V, Younglai, D, Holt, P, Brown, A, Jurisicova, R F, Casper   +4 more
openaire   +2 more sources

The effect of two pre-cryopreservation single layer colloidal centrifugation protocols in combination with different freezing extenders on the fragmentation dynamics of thawed equine sperm DNA

, 2012
Variability among stallions in terms of semen cryopreservation quality renders it difficult to arrive at a standardized cryopreservation method. Different extenders and processing techniques (such us colloidal centrifugation) are used in order to ...
Fernández, Alvaro, Gosálvez Berenguer, Jaime, Serres Dalmau, María Consolacion, Gutiérrez Cepeda, Luna, Crespo Castejón, Francisco, Ramírez, Miguel Ángel   +5 more
core   +1 more source

Clinical usefulness of sperm DNA fragmentation testing [PDF]

Translational Andrology and Urology, 2017
The search for the best biomarker for the diagnosis of male infertility is more evident in recent years as conventional semen analysis is not always an optimal predictor of male fertility. Since the advent of the intra-cytoplasmic sperm injection (ICSI) for male factor infertility, the pace of research related to sperm functional assays has slowed down.
Varghese, Alex C., Tan, Grace, Chan, Peter, Tan, Seang Lin   +3 more
openaire   +2 more sources

Study Protocol: Comparison of Clinical Pregnancy Outcomes of Intracytoplasmic Sperm Injection (ICSI) Using Testicular and Ejaculated Spermatozoa in Male Patients with High DNA Fragmentation

Journal of Pharmacy and Bioallied Sciences
Background: This study aims to compare the clinical pregnancy outcome of intracytoplasmic sperm injection (ICSI) using testicular and ejaculated spermatozoa in male patients with high deoxyribonucleic acid (DNA) fragmentation.
Juhi Barai, Akash More, Namrata Choudhary   +2 more
doaj   +1 more source

Acrosome integrity and sperm DNA fragmentation.

, 2019
(A) Acrosome evaluation was detected using FITC-PSA staining; acrosome intact and acrosome-reacted are shown. (B) Box-and-whisker plots for sperm with acrosome intact from the three experimental groups show the significant differences among all groups (C)
Rouhollah Fathi (7349051), James Benson (7349054), Gholamhossein Riazi (7349048), Seyed Mahmood Ghaffari (7349045), Abdolhossein Shahverdi (2388424), Mohsen Sharafi (7349057), Dariush Gholami (7349042)   +6 more
core   +1 more source