Results 81 to 90 of about 2,639,951 (318)

Sperm‐Derived CircRNA‐1572 Regulates Embryogenesis and Zygotic Genome Activation by Targeting CCNB2 via Bta‐miR‐2478‐L‐2

open access: yesAdvanced Science, EarlyView.
Sperm‐derived circRNA‐1572 competitively binds to bta‐miR‐2478‐L‐2 through a “sponge” mechanism to regulate cyclin B2 (CCNB2) expression, thereby modulating the distribution of fibrous actin (F‐actin) in early pig embryos, ensuring proper chromosome segregation during mitosis, and facilitating normal embryo cleavage and zygotic genome activation.
Yanfang Wu   +10 more
wiley   +1 more source

ChatGPT’s Efficacy in Queries Regarding Polycystic Ovary Syndrome and Treatment Strategies for Women Experiencing Infertility

open access: yesDiagnostics
This study assesses the efficacy of ChatGPT-4, an advanced artificial intelligence (AI) language model, in delivering precise and comprehensive answers to inquiries regarding managing polycystic ovary syndrome (PCOS)-related infertility.
Belgin Devranoglu   +2 more
doaj   +1 more source

Vortex dynamics in trabeculated embryonic ventricles [PDF]

open access: yesarXiv, 2015
Proper heart morphogenesis requires a delicate balance between hemodynamic forces, myocardial activity, morphogen gradients, and epigenetic signaling, all of which are coupled with genetic regulatory networks. Recently both in vivo and in silico studies have tried to better understand hemodynamics at varying stages of vertebrate cardiogenesis.
arxiv  

Mitofusin 1 Drives Preimplantation Development by Enhancing Chromatin Incorporation of Histone H3.3

open access: yesAdvanced Science, EarlyView.
MFN1 exerts its function partially through histone H3.3 in early embryos. MFN1 colocalizes with PADI6, and its deficiency results in compromised cytoplasmic lattices and ribosomal subunits, leading to declined H3.3 protein level. This, in turn, hinders the incorporation of H3.3 into the embryonic genome, thereby causing failure of male pronucleus ...
Xiao‐yan Shi   +9 more
wiley   +1 more source

Oxidative Stress-Related Signaling Pathways Predict Oocytes' Fertilization In Vitro and Embryo Quality. [PDF]

open access: yesInt J Mol Sci, 2022
Artini PG   +10 more
europepmc   +1 more source

Human sperm cells swimming in micro-channels [PDF]

open access: yesarXiv, 2012
The migratory abilities of motile human spermatozoa in vivo are essential for natural fertility, but it remains a mystery what properties distinguish the tens of cells which find an egg from the millions of cells ejaculated. To reach the site of fertilization, sperm must traverse narrow and convoluted channels, filled with viscous fluids.
arxiv  

Paternal Obesity‐Induced H3K27me3 Elevation Leads to MANF‐Mediated Transgenerational Metabolic Dysfunction in Female Offspring

open access: yesAdvanced Science, EarlyView.
Paternal lifestyle and environmental exposures play a critical role in the offspring's health. The present study established a paternal obesity model and demonstrated that elevated H3K27me3 levels in sperm persist through the 8‐cell embryo stage. This epigenetic modification triggers transgenerational decrease of MANF, inducing ER stress and activating
Yajun Shi   +13 more
wiley   +1 more source

Effect of dual tobacco smoking of hookah and cigarettes on semen parameters of infertile men

open access: yesTobacco Induced Diseases
Introduction The research regarding the effect of hookah smoking on health is still deficient, even though it has been proven to jeopardize human health by raising the hazard of different types of cancers, infections, and cardiovascular disease. We aimed
Soha Albeitawi   +9 more
doaj   +1 more source

Successful pregnancy for primary amenorrhea and recurrent implantation failure and the role of hysteroscopic adhesiolysis: a case report

open access: yesJournal of Medical Case Reports, 2019
Background Infertility continues to be an enigmatic and emerging problem. Although in vitro fertilization has proved to be revolutionary and immensely beneficial to many people, it is far from perfect, and many women experience recurrent in vitro ...
Zakwan Khrait
doaj   +1 more source

Wnt Inhibition Safeguards Porcine Embryonic Stem Cells From the Acquisition of Extraembryonic Endoderm Cell Fates

open access: yesAdvanced Science, EarlyView.
The study reports that Wnt inhibitors safeguard porcine embryonic stem cells (ESCs) from acquiring the extraembryonic endoderm (XEN) lineage, and further develop an efficient strategy to derive XEN cells from ESCs. The XEN cells from ESCs exhibit similar transcriptome and chromatin accessibility features to XEN cells from embryos and contribute to ...
Hanning Wang   +4 more
wiley   +1 more source

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