Results 51 to 60 of about 298,840 (357)

Resumption of Meiotic Maturation of Oocytes, Pre- and Post-Implantational Embryonic Mortality under Conditions of Experimental Glomerulonephritis and Treatment of Silver Nanoparticles

open access: yesNano Biomedicine and Engineering, 2018
The aim of the current study was to estimate the resumption of meiotic maturation of oocytes, pre- and post-implantation mortality of embryos under conditions of experimental glomerulonephritis and intravenous treatment of silver nanoparticles in mice ...
Taras Viroslavovich Blashkiv   +5 more
doaj   +1 more source

Human embryos from overweight and obese women display phenotypic and metabolic abnormalities [PDF]

open access: yes, 2014
STUDY QUESTION Is the developmental timing and metabolic regulation disrupted in embryos from overweight or obese women? SUMMARY ANSWER Oocytes from overweight or obese women are smaller than those from women of healthy weight, yet post-fertilization ...
Leary, C.   +5 more
core   +1 more source

Multi‐omics and low‐input proteomics profiling reveals dynamic regulation driving pluripotency initiation in early mouse embryos

open access: yesFEBS Open Bio, EarlyView.
Mouse pre‐implantation development involves a transition from totipotency to pluripotency. Integrating transcriptomics, epigenetic profiling, low‐input proteomics and functional assays, we show that eight‐cell embryos retain residual totipotency features, whereas cytoskeletal remodeling regulated by the ubiquitin‐proteasome system drives progression ...
Wanqiong Li   +8 more
wiley   +1 more source

Congelação de ovócitos desnudados ou não, maturos e imaturos de bovinos, utilizando o Etileno Glicol pelo método convencional Freezing of either naked or no-naked, matured and immature oocytes from cows, using the Ethylene Glycol by the conventional method

open access: yesRevista Brasileira de Zootecnia, 2004
Objetivou-se avaliar os efeitos da criopreservação pelo método convencional em ovócitos imaturos e maturados in vitro. Utilizou-se ovócitos provenientes de ovários de vacas abatidas em matadouro, distribuídos em seis tratamentos: ovócitos não-congelados ...
Letícia Martins Fagundes   +4 more
doaj   +1 more source

Effect of harvesting technique and presence or absence of corpus luteum on in vitro development after parthenogenetic activation of oocytes recovered from buffalo ovaries [PDF]

open access: yesVeterinary World, 2014
Aim: The present study was aimed at assessing the influence of three oocyte harvesting (aspiration, puncture and slicing) methods and presence or absence of corpus luteum (CL) on recovery efficiency and subsequent in vitro maturation and parthenogenetic ...
Yelisetti Uma Mahesh   +3 more
doaj   +1 more source

Regulation of the G2/M Transition in Rodent Oocytes [PDF]

open access: yes, 2010
Regulation of maturation in meiotically competent mammalian oocytes is a complex process involving the carefully coordinated exchange of signals between the somatic and germ cell compartments of the ovarian follicle via paracrine and cell–cell coupling ...
Downs, Stephen
core   +2 more sources

Functional Integration of Different‐Sex Gonad Transplants Into the Adult Mouse Hypothalamic Pituitary Gonadal Axis

open access: yesAdvanced Biology, EarlyView.
This study introduces and investigates different‐sex gonad transplants in a mouse model of gender‐affirming hormone therapy. Ovaries and testes implanted into gonadectomized adults exhibit gametogenesis and steroidogenesis independent of the sex of the host.
Daniel R. Pfau   +8 more
wiley   +1 more source

The Exploration of miRNAs From Porcine Fallopian Tube Stem Cells on Porcine Oocytes

open access: yesFrontiers in Veterinary Science, 2022
Fallopian tube is essential to fertilization and embryonic development. Extracellular vesicles (EVs) from Fallopian tube containing biological regulatory factors, such as lipids, proteins and microRNAs (miRNAs) serve as the key role.
Tzu-Yen Fu   +13 more
doaj   +1 more source

Preventing effect of vitamin E on oocytes apoptosis in morphinetreated mice [PDF]

open access: yes, 2013
Several studies have shown that Morphine Sulfate affects on fertility, embryogenesis and consequent pregnancy loss and ultrastructural alterations of oocytes in animal model.
Asadi, E.   +3 more
core   +1 more source

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

open access: yesAdvanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen   +5 more
wiley   +1 more source

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