Results 21 to 30 of about 5,747 (231)

Phospholipase C Zeta 1 (PLCZ1): The Function and Potential for Fertility Assessment and In Vitro Embryo Production in Cattle and Horses

open access: yesVeterinary Sciences, 2023
Phospholipase C Zeta 1 (PLCZ1) is considered a major sperm-borne oocyte activation factor. After gamete fusion, PLCZ1 triggers calcium oscillations in the oocyte, resulting in oocyte activation.
Raul A. Gonzalez-Castro   +1 more
doaj   +1 more source

Embryonic POU5F1 is Required for Expanded Bovine Blastocyst Formation. [PDF]

open access: yes, 2018
POU5F1 is a transcription factor and master regulator of cell pluripotency with indispensable roles in early embryo development and cell lineage specification.
Daigneault, Bradford W   +3 more
core   +2 more sources

Intracytoplasmic sperm injection (ICSI) [PDF]

open access: yesHuman Reproduction, 2000
IVF has become a well-established treatment for certain types of infertility, including long-standing infertility due to tubal disease, endometriosis, unexplained infertility or infertility involving a male factor. Soon it became clear that certain couples with severe male-factor infertility could not be helped by conventional IVF.
openaire   +3 more sources

Assisted reproductive technology in Japan: A summary report for 2019 by the Ethics Committee of the Japan Society of Obstetrics and Gynecology

open access: yesReproductive Medicine and Biology, 2022
Purpose The Japan Society of Obstetrics and Gynecology records online annual cycle‐based information for assisted reproductive technology (ART). This report presents the characteristics and treatment outcomes of ART cycles registered during 2019. Methods
Yukiko Katagiri   +10 more
doaj   +1 more source

Predictive factors for ovarian response in a corifollitropin alfa/GnRH antagonist protocol for controlled ovarian stimulation in IVF/ICSI cycles [PDF]

open access: yes, 2015
Background This secondary analysis aimed to identify predictors of low (<6 oocytes retrieved) and high ovarian response (>18 oocytes retrieved) in IVF patients undergoing controlled ovarian stimulation with corifollitropin alfa in a gonadotropin-
Nelson, Scott M.   +3 more
core   +1 more source

Intracytoplasmic Sperm Injection in Cattle [PDF]

open access: yesGenes, 2021
Intracytoplasmic sperm injection (ICSI) involves the microinjection of sperm into a matured oocyte. Although this reproductive technology is successfully used in humans and many animal species, the efficiency of this procedure is low in the bovine species mainly due to failed oocyte activation following sperm microinjection.
Veena Unnikrishnan   +2 more
openaire   +2 more sources

Integrating Quality Management and Male Reproductive Health in Assisted Reproduction [PDF]

open access: yesInternational Brazilian Journal of Urology
Quality management is essential to ensure consistent, safe, and effective outcomes in assisted reproductive technology (ART) centers. However, traditional quality assessments often overlook male infertility, which contributes to nearly half of all ...
Fabiola C. Bento   +2 more
doaj   +1 more source

Gene therapy:the potential applicability of gene transfer technology to the human germline [PDF]

open access: yes, 2004
The theoretical possibility of applying gene transfer methodologies to the human germline is explored. Transgenic methods for genetically manipulating embryos may in principle be applied to humans.
Smith, Kevin R.
core   +3 more sources

Male Infertility and antioxidants:one small step for man, no giant leap for andrology? [PDF]

open access: yes, 2019
Oxidative stress is detrimental to spermatozoa and is acknowledged to be a common pathology in infertile men. Antioxidant supplements, therefore, represent a logical therapeutic approach, although the recent Cochrane review recommends cautious ...
Martins da Silva, Sarah J.
core   +2 more sources

First polar body morphology and fertilization rate, cleavage rate, and embryo quality [PDF]

open access: yes, 2008
OBJETIVO: determinar a relação entre a morfologia do primeiro corpúsculo polar (CP) de oócitos humanos e as taxas de fertilização e clivagem e a qualidade embrionária em procedimentos de Injeção Intracitoplasmática de Espermatozóide (ICSI).
ARAÚJO, Carlos Henrique Medeiros de   +6 more
core   +2 more sources

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