Results 41 to 50 of about 44,529 (290)

Inhibition of IGFBP4 in Granulosa Cells Improves Reproductive Performance and Maintains Fertility With Age via YAP Signaling

Advanced Science, EarlyView.
IGFBP4 is upregulated in granulosa cells of aged ovaries across monkeys, mice, and humans. It inhibits YAP signaling, thereby suppressing cell proliferation and contributing to follicular dysfunction. Deletion of Igfbp4 in granulosa cells enhances ovulatory output, improves hormone profiles, and reproductive performance in aged female mice, suggesting ...
Qianhui Hu, Ajun Geng, Ziyuan Li, Fanghao Guo, Jingqiang Wang, Xinyi Chen, Meiling Zhang, Yi Arial Zeng, Wen Li   +8 more
wiley   +1 more source

Stress and anxiety in IVF and non-IVF pregnancies [PDF]

, 2010
As an increasing number of couples experience difficulties conceiving a child, the demand for assisted reproductive technologies (ARTs) continues to grow. A great deal of research has been done on the process of enabling conception but much less research
Clausen, Elizabeth Dorothy
core  

Sperm deoxyribonucleic acid fragmentation index at the time of intracytoplasmic sperm injection and standard in vitro fertilization is correlated with lower fertilization but not with blastocyst genetic diagnosis

F&S Reports, 2023
Objective: To determine the effects of sperm deoxyribonucleic acid (DNA) fragmentation at the time of fertilization on in vitro fertilization (IVF) outcomes and genetic diagnosis using next generation sequencing. Design: Prospective double-blinded study.
Alicia L. Broussard, Ph.D., H.C.L.D., Benjamin Leader, M.D., Edna Tirado, Ph.D., Helena Russell, M.S., Hind Beydoun, Ph.D., Robert Colver, M.D., Laura Reuter, M.D., Bradford Bopp, M.D., Matthew Will, M.D., Erica Anspach Will, M.D., Glen Adaniya, Ph.D., H.C.L.D.   +10 more
doaj   +1 more source

NAD+ Metabolism Licenses Zygotic Genome Activation via PARP7‐Mediated ADP‐Ribosylation of UHRF1 in Mouse Early Embryos

Advanced Science, EarlyView.
This study uncovers a metabolic‐epigenetic axis licensing zygotic genome activation (ZGA) in mouse embryos. A developmental decline in NAD+ levels activates PARP7, which mono‐ADP‐ribosylates and stabilizes UHRF1. This modification promotes the establishment of permissive histone acetylation marks, thereby facilitating timely ZGA.
Guangyi Cao, Ziqi Zhang, Anqi Chen, Yanbo Liu, Yuling Lin, Lina Yu, Ruixin Shi, Aolei Guo, Yan Mao, Ganggui Lou, Chaojun Li, Luhong Wen, Guijun Yan, Haixiang Sun   +13 more
wiley   +1 more source

Effect of Social-Platform-Based Education on Nurses’ Performance Regarding In-vitro Fertilization [PDF]

Egyptian Journal of Health Care
Background: One of the most effective assisted reproductive technologies currently available is the in vitro fertilization technique, which helps infertile couples in starting a family. The care provided to patients undergoing in vitro fertilization (IVF)
Safaa H Mohamed, Heba Ahmed Osman Mohamed, Mona R. Ahmed, Sahar Mansour Ibrahim   +3 more
doaj   +1 more source

Paternal Sperm Gnas‐ICR Epigenetic Programming Contributes to PPP‐Like Phenotypes in Female Offspring

Advanced Science, EarlyView.
A paternal glucocorticoid–sperm Gnas‐ICR axis is linked to ovarian endocrine programming in female offspring. Paternal preconception caffeine exposure elevates corticosterone, promotes sperm Gnas‐ICR hypermethylation, and is associated with ovarian Gnas upregulation, cAMP/PKA/CREB–StAR activation, enhanced estradiol synthesis, and PPP‐like phenotypes ...
Jing Huang, Lu Chen, Tiancheng Wu, Yating Li, Hui Wang   +4 more
wiley   +1 more source

Improving the safety of the embryo and the patient during in vitro fertilization procedures [PDF]

, 2016
In vitro fertilization (IVF) is a method of treatment for infertility in selected indications. Recent years have brought dynamic development of technologies related to IVF.
Iwona Bojar, Artur Wdowiak, Edyta Wdowiak   +2 more
core   +1 more source

Spatially Organized Human Ovarian Spheroids Instruct Endometrial Morphogenesis

Advanced Science, EarlyView.
A spatially organized human follicle‐like spheroid (SPHEGaT) composed of granulosa cells (GCs) and stromal‐derived theca‐like cells (TLCs) establishes sustained steroidogenesis in vitro. When co‐cultured with human endometrial organoids (EMOs), estradiol (E2) and progesterone (P4) exchange induces secretory/progesterone‐responsive differentiation ...
Maria João Sousa, Silke De Vriendt, Lixian Liu, Thalles Fernando Rocha Ruiz, Hugo Vankelecom, Christiani Andrade Amorim   +5 more
wiley   +1 more source

Gonadotrophin stimulation for in vitro fertilization significantly alters the hormone milieu in follicular fluid: a comparative study between natural cycle IVF and conventional IVF. [PDF]

, 2014
STUDY QUESTION Is the steroid hormone profile in follicular fluid (FF) at the time of oocyte retrieval different in naturally matured follicles, as in natural cycle IVF (NC-IVF), compared with follicles stimulated with conventional gonadotrophin ...
Flück, Christa E., Kollmann, Zahraa, Stute, Petra, von Wolff, Michael, Weiss, B., Marti, U., Bersinger, Nick A.   +6 more
core   +1 more source

Unraveling ovarian histology: The key morphological aspects that spur the development of the Fossa ovarii in equine

The Anatomical Record, EarlyView.
Abstract The equine ovary exhibits unique structural and developmental features that distinguish it from those of other domestic species, including the presence of an ovulation fossa and an inversion of cortical and medullary layers. This study aimed to investigate the morphostructural development of the equine fetal ovary, with particular emphasis on ...
Laura Ver Goltz, Silvio Pires Gomes, Bruno Cesar Schimming, Fabio Cesar Magioli Abdala, Maria Angélica Miglino, Tais Harumi de Castro Sasahara   +5 more
wiley   +1 more source