Results 21 to 30 of about 241,682 (297)

Live birth after fresh embryo transfer vs elective embryo cryopreservation/frozen embryo transfer in women with polycystic ovary syndrome undergoing IVF (FreFro-PCOS): study protocol for a multicenter, prospective, randomized controlled clinical trial [PDF]

open access: yes, 2014
BACKGROUND: Polycystic ovary syndrome (PCOS) patients are at increased risk of pregnancy complications, which may impair pregnancy outcome. Transfer of fresh embryos after superovulation may lead to abnormal implantation and placentation and further ...
Bo Zhang   +9 more
core   +2 more sources

Differences in Endocrine and Cardiac Changes in Mares and Her Fetus before, during, and after Parturition in Horses of Different Size

open access: yesAnimals, 2020
Equine fetomaternal monitoring is based on endocrine and cardiac parameters which may differ among small, medium-size, and full-size horses. Therefore, Shetland (n = 6), Haflinger (n = 8), and Warmblood pregnancies (n = 9) were studied during late ...
Christina Nagel   +3 more
doaj   +1 more source

Efficiency of Semen Cryopreservation in Stallions

open access: yesAnimals, 2020
Differences in the cryotolerance of spermatozoa exist among stallions, but it remains to be determined to what extent such differences are affected by breed.
Jörg Aurich   +3 more
doaj   +1 more source

Should a single blastocyst transfer policy be a clinical decision or should it depend on the embryological evaluation on day 3? [PDF]

open access: yes, 2011
Background: Single blastocyst transfer has the advantage of maximizing the fresh single pregnancy rate. However, in patients with a low number of good quality embryos on day 3, it remains unclear whether immediate embryo transfer or further embryo ...
Dominic Stoop   +5 more
core   +2 more sources

Sperm Quality during Storage Is Not Affected by the Presence of Antibiotics in EquiPlus Semen Extender but Is Improved by Single Layer Centrifugation

open access: yesAntibiotics, 2017
Contamination of semen with bacteria arises during semen collection and handling. This bacterial contamination is typically controlled by adding antibiotics to semen extenders but intensive usage of antibiotics can lead to the development of bacterial ...
Ziyad Al-Kass   +6 more
doaj   +1 more source

The Effect of Embryo Transfer Process Duration on Implantation Success

open access: yesGynecology Obstetrics & Reproductive Medicine, 2022
OBJECTIVE: To evaluate the effect of the embryo transfer duration of standard and simple embryo transfer method. STUDY DESIGN: This study was a retrospective cohort study conducted at a tertiary ART Centre, between June 2018- September 2018.
Isıl Kasapoglu   +7 more
doaj   +1 more source

BIRTH OF TWIN CALVES THROUGH MULTIPLE OVULATION AND EMBRYO TRANSFER: A CASE REPORT [PDF]

open access: yesExploratory Animal and Medical Research, 2013
A surrogate Gir cow delevered twin calves after receiving embryo from a donor Sahiwal cow at Multiple Ovulation and Embryo Transfer laboratory, Haringhata, West Bengal, India is reported.
P.S. Sengupta   +4 more
doaj  

Pre-implantation mouse embryos cultured In vitro under different oxygen concentrations show altered ultrastructures [PDF]

open access: yes, 2020
Assisted Reproductive Technologies routinely utilize different culture media and oxygen (O2) concentrations to culture human embryos. Overall, embryos cultured under physiological O2 tension (5%) have improved development compared to embryos cultured ...
Antonouli, S   +6 more
core   +1 more source

Sequential cleavage and blastocyst embryo transfer and IVF outcomes: a systematic review

open access: yesReproductive Biology and Endocrinology, 2021
Background Sequential embryo transfer has been proposed as a way to improve embryo implantation in women for in vitro fertilization (IVF), but the effect on pregnancy outcomes remains ambiguous.
Jianeng Zhang   +3 more
doaj   +1 more source

The Association Between Embryo Quality, Number of Transferred Embryos and Live Birth Rate After Vitrified Cleavage-Stage Embryos and Blastocyst Transfer

open access: yesFrontiers in Physiology, 2020
ObjectiveThe single-embryo transfer (SET) is the recommended approach to improve the live birth rate and reduce the complications related with multiple pregnancies.
Qianqian Zhu   +5 more
doaj   +1 more source

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