Results 31 to 40 of about 305,098 (258)

Depolarization of sperm membrane potential is a common feature of men with subfertility and is associated with low fertilization rate at IVF [PDF]

, 2016
STUDY QUESTION. Are significant abnormalities in outward (K+) conductance and resting membrane potential (Vm) present in the spermatozoa of patients undertaking IVF and ICSI and if so, what is their functional effect on fertilization success?
Barratt, Christopher L. R., Brown, Sean G., Lishko, Polina V., Mansell, Steven A., Martins da Silva, Sarah, Publicover, Stephen J., Ramalingam, Mythili, Sutton, Keith A., Williams, Hannah L., Wilson, Stuart M.   +9 more
core   +6 more sources

CD9 Expression by Human Granulosa Cells and Platelets as a Predictor of Fertilization Success during IVF

Obstetrics and Gynecology International, 2010
Objective. To determine whether CD9 expression on human granulosa cells (GCs) and platelets could predict the success of conventional fertilization of human oocytes during in vitro fertilization (IVF). Methods.
Carolyn R. Jaslow, Kyle S. Patterson, Shila Cholera, Lisa K. Jennings, Raymond W. Ke, William H. Kutteh   +5 more
doaj   +1 more source

#338 : Insights into the Zona-Pellucida Mediated Selection of Fertilization-Competent Spermatozoa

Fertility & Reproduction, 2023
Background and Aims: Human zona pellucida (ZP) selectively interacts with high-quality spermatozoa characterized by superior morphology and normal chromatin structure to achieve fertilization. Human ejaculate contains millions of spermatozoa with varying
Erica Tsz Ying Leung, Chuk-Lun Lee, Philip C.N. Chiu   +2 more
doaj   +1 more source

Single-cell analysis of [Ca²⁺]i signalling in sub-fertile men:characteristics and relation to fertilization outcome [PDF]

, 2018
STUDY QUESTIONWhat are the characteristics of progesterone-induced (CatSper-mediated) single cell [Ca2+]i signals in spermatozoa from sub-fertile men and how do they relate to fertilizing ability?SUMMARY ANSWERSingle cell analysis of progesterone-induced
Barratt, Christopher L.R., Brown, Sean G., Costello, Sarah M., Drew, Ellen, Kelly, Mark C., Martins da Silva, Sarah, Publicover, Stephen J., Ramalingam, Mythili   +7 more
core   +4 more sources

Zinc protection of fertilized eggs is an ancient feature of sexual reproduction in animals.

PLoS Biology, 2020
One of the earliest and most prevalent barriers to successful reproduction is polyspermy, or fertilization of an egg by multiple sperm. To prevent these supernumerary fertilizations, eggs have evolved multiple mechanisms.
Katherine L Wozniak, Rachel E Bainbridge, Dominique W Summerville, Maiwase Tembo, Wesley A Phelps, Monica L Sauer, Bennett W Wisner, Madelyn E Czekalski, Srikavya Pasumarthy, Meghan L Hanson, Melania B Linderman, Catherine H Luu, Madison E Boehm, Steven M Sanders, Katherine M Buckley, Daniel J Bain, Matthew L Nicotra, Miler T Lee, Anne E Carlson   +18 more
doaj   +1 more source

Vitrification of human immature oocytes before and after in vitro maturation: a review [PDF]

, 2017
The use of immature oocytes subjected to in vitro maturation (IVM) opens interesting perspectives for fertility preservation where ovarian reserves are damaged by pathologies or therapies, as in PCO/PCOS and cancer patients. Human oocyte cryopreservation
Ashourzadeh, S, Khalili, Ma, Macchiarelli, G, Nottola, Sa, Palmerini, Mg, Shahedi, A   +5 more
core   +1 more source

Validation of a method for measuring sperm quality and quantity in reproductive toxicity tests with pair-breeding male fathead minnows (Pimephales promelas) [PDF]

, 2009
This article originally appeared in the ILAR e-Journal. It is reprinted with permission from the ILAR Journal, Institute for Laboratory Animal Research, National Research Council, Washington DC (www.nationalacademies.org/ilar).The fathead minnow ...
Hala, D, Holt, WV, Jobling, S, Van Look, K   +3 more
core   +1 more source

Facing the Unborn [PDF]

, 2015
(excerpt) An ultrasound video of an unborn child sucking its thumb makes a case against abortion that reason hardly need supplement. But a zygote photographed just after an in vitro conception is not so easily recognizable as a human being or person. Pro-
Stith, Richard
core   +2 more sources

Transmission of mitochondrial DNA following assisted reproduction and nuclear transfer [PDF]

, 2006
Review of the articleMitochondria are the organelles responsible for producing the majority of a cell's ATP and also play an essential role in gamete maturation and embryo development.
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core   +2 more sources

The Synergic Effect of Tubal Endometriosis and Women’s Aging on Fallopian Tube Function: Insights from a 3D Mechanical Model

Bioengineering
The fallopian tubes are essential for human fertility, facilitating the movement of sperm and oocytes to the fertilization site and transporting fertilized oocytes to the uterus.
Mayssam Nassir, Mattan Levi, Natan T. Shaked   +2 more
doaj   +1 more source