نتایج جستجو برای: embryo donor

تعداد نتایج: 133294  

Journal: :Molecular human reproduction 1998
J Cohen R Scott M Alikani T Schimmel S Munné J Levron L Wu C Brenner C Warner S Willadsen

Ooplasmic transplantation aimed at restoring normal growth in developmentally compromised oocytes and embryos was evaluated in seven couples (eight cycles) with multiple implantation failures. Two approaches were investigated to transfer ooplasm from donor eggs at metaphase II (MII) stage into patient MII eggs: (i) electrofusion of a ooplasmic donor fragment into each patient egg (three cycles)...

Journal: :Theriogenology 2001
S Wang W C Foote D L Sutton A Maciulis J M Miller R C Evans G R Holyoak J W Call T D Bunch W D Taylor M R Marshall

This study investigated whether the transmission of naturally occurring scrapie in sheep can be prevented using embryo transfer. Embryos were collected from 38 donor ewes in a Suffolk sheep flock with a high incidence of naturally occurring scrapie, treated with a sanitary procedure (embryo washing) recommended by the International Embryo Transfer Society and then transferred to 58 scrapie-free...

M Soleimani, R Taheripanah

a:4:{s:10:"Background";s:513:"Obesity has become a major health problem across the world. In women, it is known to cause anovulation, sub-fecundity, increased risk of fetal anomalies and miscarriage rates. However, in women going for assisted reproduction the effects of obesity on egg quality, embryo quality, clinical pregnancy, live birth rates are controversial To assess the effect of women's...

ژورنال: Anatomical Sciences Journal 2007
Forouzan Far, Mohsen, Hajian, Mahdi, Hoseini, Seyed Morteza, Moulavi, Fariba, Nasr Esfahani, Mohammad Hosein, Parivar, Kazem, Reza Zadeh, Moitaba,

Purpose: Despite remarkable progresses have been achieved in the field of somatic cell nuclear transfer (SCNT), there is little information regarding the effect of donor cell type on the efficiency mammalian somatic cell cloning in vitro. This study compared in vitro developmental competency of sheep enucleated oocytes reconstructed with either fibroblast or cumulus cells. Material and methods...

Journal: :Human reproduction 2007
Fiona MacCallum Susan Golombok

BACKGROUND Previous data suggest that parents who adopt a child tend to support full disclosure while donor conception families prefer to keep the method of conception relatively private. It is not known whether parents in embryo donation families will tend towards the adoption model, therefore, we studied families with a child conceived using donated embryos. METHODS A total of 21 embryo don...

Journal: :Proceedings of the Latvian Academy of Sciences. Section B, Natural, Exact and Applied Sciences 2023

Abstract In cows embryo transfer occurs on the 7 th day of oestrous cycle. Embryo survival and successful pregnancy depend many factors, including early interaction between endometrium. Therefore, aim our research was to describe histo-morphological characteristics endometrium in donor recipient obtaining day, respectively (7 oestrus cycle). addition, progesterone oestradiol levels, ipsilateral...

2014
Vitaly A. Kushnir Yao Yu David H. Barad Andrea Weghofer Eric Himaya Ho-Joon Lee Yan-Guang Wu Aya Shohat-Tal Emanuela Lazzaroni-Tealdi Norbert Gleicher

CONTEXT Mutations of the fragile X mental retardation 1 (FMR1) gene are associated with distinct ovarian aging patterns. OBJECTIVE To confirm in human in vitro fertilization (IVF) that FMR1 affects outcomes, and to determine whether this reflects differences in ovarian aging between FMR1 mutations, egg/embryo quality or an effect on implantation. DESIGN, SETTING, PATIENTS IVF outcomes were ...

Journal: :Current Applied Science and Technology 2021

This study was conducted to compare the agronomic performance of four elite cocoa clones (MCBC1, KKM22, KKM4 and PBC230) regenerated from staminode immature zygotic embryo culture with conventional grafted clones. From results, it found that clone propagated exhibited variations in fresh pod weight (339.6 g), individual seed (4.13 g) number flat beans per (4 beans) compared rest The genetic sta...

Bansal ML Gupta N, Gupta SC, Pandey A Ritu T Singh M

Background: Somatic cell nuclear transfer (SCNT) provides an appealing alternative for the conservation and improvement of genetic material of unique and endangered species. An important prerequisite for successful SCNT is the availability of good quality donor cells, as normal embryo development is dependent upon proper reprogramming of the donor genome so that embryonic genes can be appropria...

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