Results 81 to 90 of about 118,915,937 (305)

Can leptin and progesterone be involved in fertilization in the horse? cleavage rate after icsi or ivf

open access: yes, 2011
Objective of this study was not only to investigate the immunocytochemical detection of leptin (Ob) and leptin receptor (Ob-R) on equine spermatozoa and on horse oocytes (compact and expanded-cumulus; pre and post in vitro maturation) but also to ...
F. Cremonesi   +3 more
core   +1 more source

A Micropeptide Component of the OGDH Complex Modulates ATP Production in the TCA Cycle

open access: yesAdvanced Science, EarlyView.
This study identified a mitochondrial micropeptide encoded by a non‐canonical open reading frame (alt‐ORF) within the CTSB gene. This micropeptide named APPM (ATP production‐promoting micropeptide) is a novel component of the OGDHc complex in the TCA cycle. APPM localizes to the inner mitochondrial membrane and directly binds to OGDH, the E1 subunit of
Xinqiang Yin   +9 more
wiley   +1 more source

Spatial dynamics of mTOR pathway activity during bovine embryo development

open access: yesFrontiers in Cell and Developmental Biology
The mTOR pathway regulates cell proliferation, growth, survival, and metabolism by integrating nutritional and growth factor signaling. In embryos, its activity is influenced by the availability of nutrients in the culture medium, and it can affect the ...
Francieli P. Berling   +4 more
doaj   +1 more source

Effect of morphokinetics and morphological dynamics of cleavage stage on embryo developmental potential: A time-lapse study

open access: yesTaiwanese Journal of Obstetrics & Gynecology, 2018
Objective: Using a non-invasive method to select the most competent embryo is essential in in vitro fertilization (IVF). Since the beginning of clinical application of time-lapse technology, several studies have proposed models using the time-lapse ...
Shiao-Hsuan Yang   +6 more
doaj   +1 more source

Prevention of fertilization by exposure of hamster eggs to soluble acrosin [PDF]

open access: yes, 1977
Incubation of hamster eggs with trypsin or chymotrypsin, but not with a series of glycosidases or lipases, prevents capacitated spermatozoa from binding to the zona pellucida so that fertilization is prevented (Hartmann & Gwatkin, 1971; Gwatkin ...
L. Wudl   +7 more
core  

Agreement between self-reported use of in vitro fertilization or ovulation induction, and medical insurance claims in Australian women aged 28–36 years

open access: yes, 2012
What is the self-reported use of in vitro fertilization (IVF) and ovulation induction (OI) in comparison with insurance claims by Australian women aged 2836 ...
Dobson, Annette   +2 more
core   +1 more source

Fzd7 Restrains Pink1‐Dependent Mitophagy in Suture Stem Cells to Maintain Cranial Suture Patency

open access: yesAdvanced Science, EarlyView.
How suture stem cells fail to preserve cranial suture patency remains incompletely understood. Integrated single‐cell and high‐resolution spatial transcriptomic analyses identify reduced Fzd7 expression in Prrx1+ suture stem cells as an early feature of craniosynostosis.
Xinyan Chen   +10 more
wiley   +1 more source

Establishment of contaminant-free perennial plants in vitro

open access: yes, 1999
Perennial plant tissue cultures are established by disinfecting field or greenhouse-grown plant parts and transferring them to sterile medium in vitro. Typically, shoots harvested from field or greenhouse-grown plants are placed in water, either to force
McMeans O.M.   +5 more
core   +1 more source

Compact 9dBEs Enable Efficient and Precise Genome Editing in Mammalian Cells and In Vivo

open access: yesAdvanced Science, EarlyView.
As a compact type II‐D system, the Cas9d‐based platform holds great potential for in vivo applications. Through rational engineering, its derived base editors (9dBEs) enable efficient disease modeling while facilitating single‐vector AAV delivery for in vivo genome editing. These miniature tools offer a robust strategy for basic research and biomedical
Qingquan Xiao   +12 more
wiley   +1 more source

NICE: A Two‐Step Non‐Invasive Framework for Embryo cfDNA Read Enrichment and Quality Assessment

open access: yesAdvanced Science, EarlyView.
The non‐invasive NICE framework, built on an ensemble stacking machine learning model, prioritizes embryos by analyzing cell‐free DNA from spent culture medium. By integrating multimodal signals, including genomic and epigenetic profiles, this automated approach standardizes morphological assessment without human bias, paving the way for more precise ...
Xueya Zhou   +6 more
wiley   +1 more source

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