Results 21 to 30 of about 29,382 (227)

Artificial mineralized shell encapsulates mammalian oocytes

open access: yesMaterials Letters: X, 2021
Biomineralization refers to the process of functional minerals biosynthesis in organisms. This study introduced artificial mineralization operations on human oocytes and performed micromorphological and material studies.
Jing Fan   +4 more
doaj   +1 more source

Protein-carbohydrate interactions during fertilization [PDF]

open access: yes, 1998
Interaction between gametes during fertilization is at least in part regulated by carbohydrate moieties of the zona pellucida (ZP) and carbohydrate binding proteins of the sperm surface. This review focuses on the protein-carbohydrate interactions during
Kolle, S., Plendl, J., Sinowatz, Fred
core   +1 more source

Application of a zona pellucida binding assay (ZBA) in the domestic cat benefits from the use of in vitro matured oocytes

open access: yesActa Veterinaria Scandinavica, 2007
Background Zona pellucida binding assays (ZBAs) have proven useful in determining the fertilising ability of spermatozoa in several species. Most ZBAs use fresh or salt-stored oocytes collected from fresh ovaries but because ovaries are not easy to ...
Holst Bodil   +2 more
doaj   +1 more source

Biosynthesis and expression of zona pellucida glycoproteins in mammals [PDF]

open access: yes, 2001
The zona pellucida (ZP) is an extracellular matrix surrounding the oocyte and the early embryo that exerts several important functions during fertilization and early embryonic development.
Kölle, S.   +2 more
core   +1 more source

Laser microdissection as a new approach to prefertilization genetic diagnosis [PDF]

open access: yes, 2000
The genetic status of oocytes can be determined by polar body (PB) analysis. Following PB extraction, a genetic evaluation is performed. As each PB contains the complementary genetic material of the oocyte, PB analysis reveals information about its ...
Buchholz, Tina   +2 more
core   +1 more source

The effect of chemical treatment of the sheep embryo zona pellucida on the ability of blastocysts to hatch after vitrification and warming

open access: yesVeterinary Medicine and Science, 2022
Background The embryo release from the zona pellucida is of prerequisites of successful implantation. Objectives Regarding the negative impact of embryo cryopreservation on the blastocysts hatchability, the aim of the present study was to investigate the
Fatemeh‐Sadat Mousavi   +4 more
doaj   +1 more source

Foliculogénesis Ovárica en la Raya Marmorada, Sympterygia bonapartii (Müller & Henle, 1841) (Chondrichthyes, Rajidae) [PDF]

open access: yes, 2011
Los Condrictios se han convertido en un recurso económico importante en las últimas décadas, siendo Argentina uno de los países que más explota tiburones y rayas, incluso a niveles que exceden los límites de varias especies.
Díaz Andrade, María Constanza   +3 more
core   +1 more source

Morphocytometric Evaluation of Equine Oocytes Following In Vitro Maturation

open access: yesBulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca: Veterinary Medicine, 2023
In the current study, 930 equine oocytes were collected, 765 (82.25%) of which were considered viable for in vitro maturation. All selected oocytes were matured for 27 h at 38.50 0C in an atmosphere of 5% CO2 in humidified air.
Hussam ARYAN   +2 more
doaj   +1 more source

Interspecies somatic cell nuclear transfer is dependent on compatible mitochondrial DNA and reprogramming factors [PDF]

open access: yes, 2011
Interspecies somatic cell nuclear transfer (iSCNT) involves the transfer of a nucleus or cell from one species into the cytoplasm of an enucleated oocyte from another.
Jiang, Yan   +6 more
core   +6 more sources

Availability of empty zona pellucida for generating embryonic chimeras. [PDF]

open access: yesPLoS ONE, 2014
In the present study we used an empty zona pellucida derived from hatched blastocysts as an alternative source for embryo aggregation and compared results with the conventional microwell method.
Chi-Hun Park   +7 more
doaj   +1 more source

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