Results 21 to 30 of about 1,448,946 (300)

Strengthened luteal phase support for patients with low serum progesterone on the day of frozen embryo transfer in artificial endometrial preparation cycles: a large-sample retrospective trial

Reproductive Biology and Endocrinology, 2021
Background Low serum progesterone on the day of frozen embryo transfer (FET) is associated with diminished pregnancy rates in artificial endometrium preparation cycles, but there is no consensus on whether strengthened luteal phase support (LPS) benefits
Hongyuan Gao, Jing Ye, Hongjuan Ye, Qingqing Hong, Lihua Sun, Qiuju Chen   +5 more
doaj   +1 more source

Multiparametric Study of Antioxidant Effect on Ram Sperm Cryopreservation—From Field Trials to Research Bench

Animals, 2021
The optimization of sperm cryopreservation protocols in ram is a feasible tool to reinforce artificial insemination technologies considering the desirable application of sperm by vaginal/cervical or transcervical deposition.
Marta F. Riesco, Mercedes Alvarez, Luis Anel-Lopez, Marta Neila-Montero, Cristina Palacin-Martinez, Rafael Montes-Garrido, Juan Carlos Boixo, Paulino de Paz, Luis Anel   +8 more
doaj   +1 more source

Frequency of Semen Collection Affects Ram Sperm Cryoresistance

Animals, 2022
The improvement of frozen-thawed sperm quality has been mostly approached from the view of cryopreservation protocol optimization in terms of cryoprotectant solutions, freezing-thawing rates and antioxidant supplementation, while the impact of sperm ...
Cristina Palacin-Martinez, Mercedes Alvarez, Rafael Montes-Garrido, Marta Neila-Montero, Luis Anel-Lopez, Paulino de Paz, Luis Anel, Marta F. Riesco   +7 more
doaj   +1 more source

Donors we choose:Race, nation and the biopolitics of (queer) assisted reproduction in Scandinavia

, 2023
In the 2000s, same sex partnership laws, new reproductive technologies, and legislation rendering lesbian couples and single women eligible for state-funded assisted reproduction with donated gametes in the Scandinavian nations has resulted in ...
Dahl, Ulrika, Andreassen, Rikke,, Andreassen, Rikke, Dahl, Ulrika,   +3 more
core   +1 more source

Effects of vaginal vs oral progesterone supplementation before embryo transfer on live birth rates and levels: a randomized trial

Reproduction and Fertility
The increase in frozen embryo transfers (FETs) is a consequence of advances in embryo vitrification and the implementation of genetic screening of embryos.
Gorka Barrenetxea, Olaia Prego, Ricardo Celis, Edurne Martínez, María De Las Heras, Oihane Gómez, Olaia Aguirre, Sheila Samojluk, Julen Barrenetxea   +8 more
doaj   +1 more source

The Use of Proteomics in Assisted Reproduction [PDF]

In Vivo, 2017
Despite the explosive increase in the use of Assisted Reproductive Technologies (ART) over the last 30 years, their success rates remain suboptimal. Proteomics is a rapidly-evolving technology-driven science that has already been widely applied in the exploration of human reproduction and fertility, providing useful insights into its physiology and ...
Kosteria, I., Anagnostopoulos, A.K., Kanaka-Gantenbein, C., Chrousos, G.P., Tsangaris, G.T.   +4 more
openaire   +3 more sources

Progestin-primed milder stimulation with clomiphene citrate yields fewer oocytes and suboptimal pregnancy outcomes compared with the standard progestin-primed ovarian stimulation in infertile women with polycystic ovarian syndrome

Reproductive Biology and Endocrinology, 2018
Background Oral progestin has recently been used to prevent premature LH surges in ovarian stimulation, and this progestin-primed ovarian stimulation (PPOS) is effective and safe in patients with different ovarian reserves.
Hongjuan Ye, Hui Tian, Wen He, Qifeng Lyu, Yanping Kuang, Qiuju Chen, Lihua Sun   +6 more
doaj   +1 more source

European policies on same-sex relationships, adoption and assisted reproduction [PDF]

, 2022
Same-sex civil union, marriage, adoption and access to assisted reproduction have progressively been more accepted worldwide. However, many differences exist in national legislation regarding the matter. This work is a review of current national policies
Brandão, Pedro, Pedro Brandão
core   +1 more source

Decrease in preovulatory serum estradiol is a valuable marker for predicting premature ovulation in natural/unstimulated in vitro fertilization cycle

Journal of Ovarian Research, 2018
Background Premature ovulation occurs at a high rate in natural-cycle in vitro fertilization (IVF), and cycle cancellation further hampers the overall efficiency of the procedure.
Xuefeng Lu, Shuzin Khor, Qianqian Zhu, Lihua Sun, Yun Wang, Qiuju Chen, Ling Wu, Yonglun Fu, Hui Tian, Qifeng Lyu, Renfei Cai, Yanping Kuang   +11 more
doaj   +1 more source

Does the cell number of 0PN embryos on day 3 affect pregnancy and neonatal outcomes following single blastocyst transfer?

BMC Pregnancy and Childbirth, 2022
Background 0PN zygotes have a low cleavage rate, and the clinical outcomes of cleavage-stage embryo transfers are unsatisfactory. Blastocyst culturing is used to screen 0PN embryos, but whether the cell number of 0PN embryos on day 3 affects the clinical
Chen Chen, Wenzhi Li, Mingru Yin, Menghui Li, Ling Wu, Jiqiang Si, Leiwen Zhao, Bin Li, Zheng Yan, Qifeng Lyu   +9 more
doaj   +1 more source