Results 11 to 20 of about 62,614 (258)

Density‐dependent patterns of multivariate selection on sperm motility and morphology in a broadcast spawning mussel

open access: yesEcology and Evolution, 2022
Sperm cells exhibit extraordinary phenotypic variation, both among taxa and within individual species, yet our understanding of the adaptive value of sperm trait variation across multiple contexts is incomplete.
Jessica H. Hadlow   +2 more
doaj   +1 more source

#159 : Aneuploidy Embryos Rate in Good Prognosis Patients After Fertilization Using ICSI and IMSI Methods

open access: yesFertility & Reproduction, 2023
Background and Aims: Embryo aneuploidy is caused by many factors, including patient age, sperm quality and sperm selection method. There are several methods for selecting sperm, ICSI (intracytoplasmic sperm injection) and IMSI (intracytoplasmic ...
Reza Raharjo   +3 more
doaj   +1 more source

No evidence for pre-copulatory sexual selection on sperm length in a passerine bird. [PDF]

open access: yesPLoS ONE, 2012
There is growing evidence that post-copulatory sexual selection, mediated by sperm competition, influences the evolution of sperm phenotypes. Evidence for pre-copulatory sexual selection effects on sperm traits, on the other hand, is rather scarce.
Jan T Lifjeld   +7 more
doaj   +1 more source

FertDish: microfluidic sperm selection-in-a-dish for intracytoplasmic sperm injection [PDF]

open access: yesLab on a Chip, 2021
The FertDish features a clinically applicable sperm processing format, and enables high recovery of motile sperm with high DNA quality.
Sa Xiao   +7 more
openaire   +3 more sources

Sperm quality metrics were improved by a biomimetic microfluidic selection platform compared to swim-up methods

open access: yesMicrosystems & Nanoengineering, 2023
Sperm selection is an essential component of all assisted reproductive treatments (ARTs) and is by far the most neglected step in the ART workflow in regard to technological innovation.
Steven A. Vasilescu   +4 more
doaj   +1 more source

The birth of a healthy child in a married couple with a history of multiple unsuccessful attempts at ART by selecting sperm on oocyte-cumulus complexes. Case report [PDF]

open access: yesГинекология, 2023
In male infertility, couples must use assisted reproductive technologies with the intracytoplasmic sperm injection (ICSI) technique. A significant disadvantage of ICSI is bypassing natural selection barriers since selective processes in the female ...
Alina V. Chistyakova   +5 more
doaj   +1 more source

Novel distance-progesterone-combined selection approach improves human sperm quality

open access: yesJournal of Translational Medicine, 2018
Background Sperm selection is essential for the health of offspring conceived via assistive reproductive technology (ART). Various methods of sperm preparation for in vitro fertilization and intracytoplasmic sperm injection have been developed to acquire
Kun Li   +6 more
doaj   +1 more source

Rheotaxis-based sperm separation using a biomimicry microfluidic device

open access: yesScientific Reports, 2021
Sperm selection is crucial to assisted reproduction, influencing the success rate of the treatment cycle and offspring health. However, in the current clinical sperm selection practices, bypassing almost all the natural selection barriers is a major ...
Iman Ramazani Sarbandi   +3 more
doaj   +1 more source

Conventional Magnification Suffices for High-quality Sperm Selection When Embryologist Experience Is Optimized: A Comparison with MSOME [PDF]

open access: yesJournal of Genetic Resources
The ability to choose the appropriate sperm is essential to enhance the assisted reproductive technologies results. This study evaluated the performance of five embryologists in selecting sperm using conventional magnifications.
Fatemeh Shakeri   +4 more
doaj   +1 more source

Sperm Inspection for In Vitro Fertilization via Self-Assembled Microdroplet Formation and Quantitative Phase Microscopy

open access: yesCells, 2021
We present a new method for the selection of individual sperm cells using a microfluidic device that automatically traps each cell in a separate microdroplet that then individually self-assembles with other microdroplets, permitting the controlled ...
Yuval Atzitz   +3 more
doaj   +1 more source

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