Results 31 to 40 of about 69,701 (316)

Research Advances in Gametogenesis and Embryogenesis Using Pluripotent Stem Cells

open access: yesFrontiers in Cell and Developmental Biology, 2022
The previous studies of human gametogenesis and embryogenesis have left many unanswered questions, which hinders the understanding of the physiology of these two vital processes and the development of diagnosis and treatment strategies for related ...
Yuxin Luo, Yang Yu, Yang Yu
doaj   +1 more source

Effectiveness, safety, and practicality of intramuscular progesterone in restoring pregnancy outcomes during frozen embryo transfers

open access: yesFrontiers in Endocrinology
ObjectiveTo evaluate whether progesterone (P4) supplementation in patients with low serum progesterone levels after normal luteal phase support (LPS) improves pregnancy outcomes in women undergoing frozen embryo transfer (FET).MethodsA retrospective ...
Chien Ngoc Nguyen   +18 more
doaj   +1 more source

Assisted reproductive technology in the USA: is more regulation needed?

open access: yes, 2014
The regulation of assisted reproductive technologies is a contested area. Some jurisdictions, such as the UK and a number of Australian states, have comprehensive regulation of most aspects of assisted reproductive technologies; others, such as the USA ...
Frith, Lucy; id_orcid   +2 more
core   +1 more source

C/EBP-β and SIRT1 regulate IL-18 expression in the proliferative phase endometria of polycystic ovary syndrome patients

open access: yesGynecology and Obstetrics Clinical Medicine, 2021
Background: Previous studies have shown that polycystic ovary syndrome (PCOS) patients suffer from low-grade chronic inflammation. Furthermore, our previous studies have confirmed that IL-18 is highly expressed in the serum and endometria of PCOS ...
Xiaoyu Long   +5 more
doaj   +1 more source

Imprinting and assisted reproductive technology [PDF]

open access: yesHuman Molecular Genetics, 2005
In the past 25 years, the frequency of assisted reproductive technology (ART) births has increased rapidly to account for 1-2% of all births in many developed countries. ART procedures such as in vitro fertilization and intracytoplasmic sperm injection are generally considered to be safe, but recent studies suggest a small excess of birth defects and ...
openaire   +2 more sources

Reproductive tract microbiome in assisted reproductive technologies [PDF]

open access: yesFertility and Sterility, 2015
The human microbiome has gained much attention recently for its role in health and disease. This interest has come as we have begun to scratch the surface of the complexity of what has been deemed to be our "second genome" through initiatives such as the Human Microbiome Project.
Jason M, Franasiak, Richard T, Scott
openaire   +2 more sources

A Novel Splicing Mutation in the FBN2 Gene in a Family With Congenital Contractural Arachnodactyly

open access: yesFrontiers in Genetics, 2020
Congenital contractural arachnodactyly (CCA) is an extremely rare monogenic disorder in humans, and the prevalence of CCA is estimated to be less than 1 in 10,000 worldwide.
Peiwen Xu   +33 more
doaj   +1 more source

The pan-cancer landscape of abnormal DNA methylation and intratumor microorganisms

open access: yesNeoplasia: An International Journal for Oncology Research, 2023
Microorganisms play very important roles in carcinogenesis, tumor progression, and resistance upon treatment. Due to the challenge of accurately acquiring samples and quantifying low-biomass tissue microorganisms, most studies have focused on the effect ...
Ping Zhou   +13 more
doaj   +1 more source

Endometrial Vascularization Characterized by Optical Coherence Tomography and Immunohistochemistry in Women Undergoing In Vitro Fertilization-Embryo Transfer Treatment

open access: yesMedicina, 2019
Background and objective: Endometrial angiogenesis is a prerequisite for successful pregnancy. Optical coherence tomography (OCT) is a non-invasive physically optical imaging technique widely used in ophthalmology and cardiology.
Tracy Sze Man Law   +7 more
doaj   +1 more source

The Influence of the Vanishing Twin on the Perinatal Outcome of Surviving Singleton in IVF Pregnancy

open access: yesFrontiers in Endocrinology, 2022
ObjectiveThe purpose of this study was to clarify the influence of the vanishing twin (VT) on the perinatal outcomes in the surviving singleton and further identify the susceptible window.Study designRetrospective cohort study.MethodsA total of 636 ...
Jiarong Li   +55 more
doaj   +1 more source

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