Results 91 to 100 of about 133,185 (340)

Enhancing Specificity, Precision, Accessibility, Flexibility, and Safety to Overcome Traditional CRISPR/Cas Editing Challenges and Shape Future Innovations

open access: yesAdvanced Science, Volume 12, Issue 28, July 24, 2025.
CRISPR/Cas9, while transformative, faces challenges in specificity, precision, delivery, accessibility, flexibility, and safety. This review addresses these limitations by highlighting strategies to reduce off‐target effects, exploring HDR‐based and alternative editing approaches, and evaluating advanced delivery mechanisms.
Muna Alariqi   +8 more
wiley   +1 more source

G9a regulates temporal preimplantation developmental program and lineage segregation in blastocyst

open access: yeseLife, 2018
Early mouse development is regulated and accompanied by dynamic changes in chromatin modifications, including G9a-mediated histone H3 lysine 9 dimethylation (H3K9me2).
Jan J Zylicz   +6 more
doaj   +1 more source

Should extended blastocyst culture include Day 7?

open access: yesHuman Reproduction, 2018
Extended culture to the blastocyst stage is widely practised, improving embryo selection and promoting single embryo transfer. Selection of useable blastocysts typically occurs on Days 5 and 6 of embryo culture.
E. Hammond, Lynsey M Cree, D. Morbeck
semanticscholar   +1 more source

Tracing and Capturing the Epiblast Pluripotency of Sheep Preimplantation Embryos

open access: yesAdvanced Science, EarlyView.
This study performs a comprehensive single‐cell transcriptome analysis of sheep embryos from embryonic (E) day 1 to E14 to elucidate the mechanism of early lineage specification and the pluripotency changes (naïve, formative, and primed) of epiblast.
Jinying Zhang   +28 more
wiley   +1 more source

Establishment of a trans‐vaginal ultrasound‐guided pinpoint transfer method

open access: yesReproductive Medicine and Biology, 2018
Purpose Through the use of the trans‐vaginal ultrasound‐guided pinpoint transfer method, the aim was to ensure the safety of the embryo being transferred in cases of difficult cervixes.
Sumihide Okamoto
doaj   +1 more source

A Critical Examination of the Question of Personhood in Stem Cell Research [PDF]

open access: yes, 2016
Stem cell research programme has been celebrated world over as the most promising medical research in the 21st century. However, the method of stem cell research involves the use and unavoidable destruction of human embryo.
Ibanga, Diana-Abasi
core  

Blastocyst-induced changes in the bovine endometrial transcriptome.

open access: yesReproduction, 2018
The objectives of this study were (i) to determine whether blastocyst-induced responses in endometrial explants were detectable after 6- or 24-h co-culture in vitro; (ii) to test if direct contact is required between embryos and the endometrial surface ...
C. Passaro   +7 more
semanticscholar   +1 more source

RSPO2 Coordinates with GDF9:BMP15 Heterodimers to Promote Granulosa Cell and Oocyte Development in Mice

open access: yesAdvanced Science, EarlyView.
RSPO2 and GDF9:BMP15 heterodimers—core components of oocyte‐secreted factors (OSFs)—coordinate to shape the molecular architecture of preantral granulosa cells via gene‐specific synergistic and antagonistic regulation, mediated through CTNNB1–SMAD2 signaling crosstalk.
Yingmei Wang   +7 more
wiley   +1 more source

Transient Sperm Starvation Improves the Outcome of Assisted Reproductive Technologies

open access: yesFrontiers in Cell and Developmental Biology, 2019
To become fertile, mammalian sperm must undergo a series of biochemical and physiological changes known as capacitation. These changes involve crosstalk between metabolic and signaling pathways and can be recapitulated in vitro.
Felipe A. Navarrete   +17 more
doaj   +1 more source

Neurotrophin-4 promotes the specification of trophectoderm lineage after parthenogenetic activation and enhances porcine early embryonic development

open access: yesFrontiers in Cell and Developmental Biology, 2023
Neurotrophin-4 (NT-4), a neurotrophic factor, appears to affect early embryonic development because it is secreted not only by neurons but also by oviductal and uterine epithelial cells. However, no studies have characterized the effects of NT-4 on early
Mirae Kim   +15 more
doaj   +1 more source

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