Results 41 to 50 of about 158,096 (183)

Assessment of the effectiveness of methods for the selection of sperm with increased DNA fragmentation in ART cycles [PDF]

BIO Web of Conferences
Sperm DNA stability is significant in male infertility and favorable reproductive outcomes. Increased DNA fragmentation in spermatozoa can negatively affect the fertilization potential and the kinetics of embryo development.
Leontyeva Eugene, Kim Alena, Zastavskiy Ivan, Yakhyarova Mukhabbat, Polumiskov Vadim   +4 more
doaj   +1 more source

A biomimetic sperm selection device for routine sperm selection

Reproductive BioMedicine Online
Can a biomimetic microfluidic sperm sorter isolate motile sperm while minimizing DNA damage in comparison with density gradient centrifugation (DGC)?This was a two-phase study of 61 men, consisting of a proof-of-concept study with 21 donated semen samples in a university research laboratory, followed by a diagnostic andrology study with 40 consenting ...
Steven A, Vasilescu, Dale M, Goss, Kathryn H, Gurner, Rebecca L, Kelley, Maria, Mazi, Fabrice K, De Bond, Jennifer, Lorimer, Fabrizzio, Horta, Farin Y, Parast, David K, Gardner, Reza, Nosrati, Majid E, Warkiani   +11 more
openaire   +2 more sources

Evolution of female multiple mating : A quantitative model of the “sexually selected sperm” hypothesis [PDF]

, 2014
This article is protected by copyright. All rights reserved. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is ...
Bocedi, Greta, Reid, Jane M
core   +1 more source

Measuring Pre- and Post-Copulatory Sexual Selection and Their Interaction in Socially Monogamous Species with Extra-Pair Paternity

Cells, 2021
When females copulate with multiple males, pre- and post-copulatory sexual selection may interact synergistically or in opposition. Studying this interaction in wild populations is complex and potentially biased, because copulation and fertilization ...
Emily Rebecca Alison Cramer
doaj   +1 more source

Last-male sperm precedence in Rhynchophorus ferrugineus (Olivier): observations in laboratory mating experiments with irradiated males [PDF]

, 2018
The Red PalmWeevil (RPW)Rhynchophorus ferrugineus(Olivier 1790) is an invasive pest from southeastern Asia and Melanesia that in the last 30 years has spread widely in the Middle East and Mediterranean Basin.
A. De Biase, A. La Marca, Abdel-Azim, Barclay, Benjamini, Danielsson, El-Mergawy, Esteban-Duràn, Faghih, Faleiro, Gothi, Inghilesi, Knipling, Lee, M. Cristofaro, Murphy, Musmeci, P. Nobili, Prabhu, Prabhu, R. Sasso, Rahalkar, Rahalkar, Rahalkar, Ramachandran, S. Arnone, S. Belvedere, S. Musmeci, Simmons   +28 more
core   +1 more source

Experimental evolution of sperm competitiveness in a mammal

BMC Evolutionary Biology, 2011
Background When females mate with multiple partners, sperm from rival males compete to fertilise the ova. Studies of experimental evolution have proven the selective action of sperm competition on male reproductive traits.
Simmons Leigh W, Firman Renée C
doaj   +1 more source

Modeling diffusive search by non-adaptive sperm: Empirical and computational insights.

PLoS Computational Biology
During fertilization, mammalian sperm undergo a winnowing selection process that reduces the candidate pool of potential fertilizers from ~106-1011 cells to 101-102 cells (depending on the species).
Benjamin M Brisard, Kylie D Cashwell, Stephanie M Stewart, Logan M Harrison, Aidan C Charles, Chelsea V Dennis, Ivie R Henslee, Ethan L Carrow, Heather A Belcher, Debajit Bhowmick, Paul W Vos, Maciej Majka, Martin Bier, David M Hart, Cameron A Schmidt   +14 more
doaj   +1 more source

Hyaluronic Acid Binding Sperm Selection for assisted reproduction treatment (HABSelect): Study protocol for a multicentre randomised controlled trial [PDF]

, 2016
© Published by the BMJ Publishing Group Limited.Introduction The selection of a sperm with good genomic integrity is an important consideration for improving intracytoplasmic sperm injection (ICSI) outcome.
Beresford, L., Bhattacharya, S., Brian, K., Coomarasamy, A., Hooper, R., Khalaf, Y., Kirkman-Brown, J., Lewis, S.E., Miller, D., Pacey, A., Pavitt, S., West, R., Witt, K.D.   +12 more
core   +8 more sources

A PMMA-Based Microfluidic Device for Human Sperm Evaluation and Screening on Swimming Capability and Swimming Persistence

Micromachines, 2020
The selection of high-quality sperm is essential to the success of in vitro fertilization (IVF). As human cervical mucus has a high viscosity, without enough swimming persistence, human sperm clouds cannot arrive at the ampulla to fertilize the egg.
Yimo Yan, Haoran Liu, Boxuan Zhang, Ran Liu   +3 more
doaj   +1 more source

Sperm morphology, adenosine triphosphate (ATP) concentration and swimming velocity: unexpected relationships in a passerine bird. [PDF]

, 2016
The relationship between sperm energetics and sperm function is poorly known, but is central to our understanding of the evolution of sperm traits. The aim of this study was to examine how sperm morphology and ATP content affect sperm swimming velocity ...
Bennison, C., Birkhead, T., Brookes, L., Hemmings, N., Slate, J.   +4 more
core   +3 more sources