Results 71 to 80 of about 190,003 (291)

Review: Environment of the ovulatory follicle: modifications and use of biotechnologies to enhance oocyte competence and increase fertility in cattle

open access: yesAnimal, 2023
The oocyte is the basis of life, supporting development from a fertilized cell to an independent multicellular organism. The oocyte’s competence to drive the first cell cycles postfertilization are critical to embryonic survival and subsequent successful
Camila Bortoliero Costa   +2 more
doaj  

Fatty Acid Oxidation and Meiotic Resumption in Mouse Oocytes [PDF]

open access: yes, 2009
We have examined the potential role of fatty acid oxidation (FAO) in AMP-activated protein kinase (AMPK)-induced meiotic maturation. Etomoxir and malonyl CoA, two inhibitors of carnitine palmitoyl transferase-1 (CPT1), and thus FAO, blocked meiotic ...
Downs, Stephen   +2 more
core   +2 more sources

Intermediate Filament Protein BFSP1 Maintains Oocyte Asymmetric Division by Modulating Spindle Length

open access: yesAdvanced Science, EarlyView.
Different from mitosis, the female meiosis undergoes asymmetric division that produces haploid oocytes and polar body, which is essential for retaining maternal components to support subsequent fertilization and embryo development. However, the underlying mechanisms are still largely unknown.
Yu Li   +6 more
wiley   +1 more source

Ovarian aging: energy metabolism of oocytes

open access: yesJournal of Ovarian Research
In women who are getting older, the quantity and quality of their follicles or oocytes and decline. This is characterized by decreased ovarian reserve function (DOR), fewer remaining oocytes, and lower quality oocytes.
Shenglan Bao, Tailang Yin, Su Liu
doaj   +1 more source

Perturbing Microtubule Integrity Blocks AMP-Activated Protein Kinase-Induced Meiotic Resumption in Cultured Mouse Oocytes [PDF]

open access: yes, 2012
The oocyte meiotic spindle is comprised of microtubules (MT) that bind chromatin and regulate both metaphase plate formation and karyokinesis during meiotic maturation; however, little information is known about their role in meiosis reinitiation.
Downs, Stephen, Ya, Ru
core   +2 more sources

Artificial Intelligences: A Bridge Toward Diverse Intelligence and Humanity's Future

open access: yesAdvanced Intelligent Systems, EarlyView.
Many discussions of artificial intelligence fail to address deeper questions being raised by advances in developmental biology, neuroscience, bioengineering, and philosophy of mind. Novel beings, including technologically and biologically augmented humans, engineered life forms, hybrots, and others, require tools of the emerging field of diverse ...
Michael Levin
wiley   +1 more source

Functional Analysis of MicroRNA Pathway Genes in the Somatic Gonad and Germ Cells During Ovulation in \u3cem\u3eC. Elegans\u3c/em\u3e [PDF]

open access: yes, 2017
MicroRNAs (miRNAs) are post-transcriptional regulators of gene expression that play critical roles in animal development and physiology, though functions for most miRNAs remain unknown.
Abbott, Allison L.   +3 more
core   +1 more source

Digital multiplexed mRNA analysis of functionally important genes in single human oocytes and correlation of changes in transcript levels with oocyte protein expression [PDF]

open access: yes, 2014
Objective To investigate functionally important transcripts in single human oocytes with the use of NanoString technology and determine whether observed differences are biologically meaningful.
Homer, H, Riris, S, Webster, P
core   +1 more source

Non‐Invasive Prenatal Testing by Cell‐Free DNA (cfNIPT) for Detecting Turner Syndrome With Mosaicism and Structural Variants—Prenatal Findings and Postnatal Outcomes

open access: yesAmerican Journal of Medical Genetics Part C: Seminars in Medical Genetics, EarlyView.
ABSTRACT Turner Syndrome (TS) is a sex chromosomal disorder associated with karyotype heterogeneity. Although TS can be associated with severe prenatal findings, most often linked to the 45, X karyotype, the majority of TS fetuses have no overt phenotype, resulting in delayed diagnosis and management.
Ivonne Bedei   +10 more
wiley   +1 more source

In vivo Imaging of oskar mRNA transport reveals the mechanism of posterior localization [PDF]

open access: yes, 2008
oskar mRNA localization to the posterior of the Drosophila oocyte defines where the abdomen and germ cells form in the embryo. Although this localization requires microtubules and the plus end-directed motor, kinesin, its mechanism is controversial and ...
Vitaly L. Zimyanin   +60 more
core   +2 more sources

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