Results 31 to 40 of about 112,190 (308)

Embryo donation parents' attitudes towards donors : comparison with adoption [PDF]

open access: yes, 2008
BACKGROUND: Embryo donation produces a family structure where neither rearing parent is genetically related to the child, as in adoption. It is not known how embryo donation parents view the donors compared with how adoptive parents view the birth ...
MacCallum, Fiona
core   +1 more source

Diestrous Ovulations in Pregnant Mares as a Response to Low Early Postovulatory Progestogen Concentration

open access: yesAnimals, 2020
Spontaneous prolongation of the luteal phase has been described in horses, but the underlying causes are still unclear. The present study investigated details of gonadotrophin and progestogen secretion in pregnant mares (n = 11) with or without ...
Carolina T. C. Okada   +5 more
doaj   +1 more source

EFFECT OF MELATONIN ON BUFFALO BULL SPERM FREEZABILITY, ULTRASTRUCTURE CHANGES AND FERTILIZING POTENTIALS [PDF]

open access: yesAssiut Veterinary Medical Journal, 2015
Cryopreservation induces sublethal damage to the spermatozoa, which leads to reduce their fertile life. The objective of the present study was to investigate the effect of melatonin on freezability, ultrastructure and fertilizing potentials of the ...
MOHAMED EL-RAEY   +3 more
doaj   +1 more source

Comparative Analysis of Nuclear Transfer Embryo Derived Mouse Embryonic Stem Cells. Part II: Gene regulation [PDF]

open access: yes, 2012
In a mouse model nuclear transfer embryo-derived embryonic stem cell lines (ntESCs) of various genetic backgrounds and donor cell types were compared with reference ESCs and analyzed comprehensively at molecular level as a second part of a larger study ...
Julianna Kobolak   +17 more
core   +1 more source

Comparative Analysis of Nuclear Transfer Embryo Derived Mouse Embryonic Stem Cells. Part I: Cellular characterization [PDF]

open access: yes, 2012
Embryonic stem cells derived from nuclear transfer embryos (ntESCs) are particularly valuable for regenerative medicine, as they are a patient-specific and histocompatible cell source for the treatment of varying diseases.
Julianna Kobolak   +13 more
core   +1 more source

Fertility quality of life (FertiQoL) among Chinese women undergoing frozen embryo transfer

open access: yes, 2021
Background: Women undergoing infertility treatment have poor quality of life. This may cause them to withdraw from or refuse treatment. Women undergoing frozen embryo transfer have a treatment interval. The aim of this study was to investigate the status
Diao, Siyu   +8 more
core   +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.
St. John Justin C.   +22 more
core   +1 more source

Clinical Application Of Intrauterine Laparoscopic Insemination In Zaraiby Goats Using Different Concentrations Of Zaraiby And Boer Bucks’ Frozen Semen

open access: yesJournal of Applied Veterinary Sciences, 2020
This study aimed to determine the proper sperm dose per laparoscopic intrauterine insemination (LAI) in Zaraiby goats. Thirty-six Zaraiby goats, two Zaraiby and two Boer bucks were used in the study.
Amal Z. Leil   +2 more
doaj   +1 more source

Prospects for transgenesis in the chick [PDF]

open access: yes, 2004
Research to develop a useful method for genetic modification of the chick has been on-going since the first demonstrations in the mouse in the 1980s that genetic modification is an invaluable tool for the study of gene function. Manipulation of the chick
Sang, Helen
core   +1 more source

Effect of methyl β cyclodextrin on freezability and in vitro fertilizing potential of buffalo spermatozoa Badr, M. R. and Mary G. Abd El- Malak

open access: yesAssiut Veterinary Medical Journal, 2007
Cryopreservation induces partially irreversible damage to sperm membrane as a result of membrane destabilization.  The membrane damage after freezing might be linked to the modification of the membrane fluidity before freezing.
Badr, M. R., Mary G. Abd El- Malak
doaj   +1 more source

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