Results 131 to 140 of about 133,185 (340)

The blastocyst [PDF]

open access: yesHuman Reproduction, 2012
Thorir, Hardarson   +2 more
openaire   +2 more sources

Calpain Proteases and the Evolving Signaling Network in Insect Embryonic Patterning

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Insect embryonic Dorsal‐Ventral (DV) patterning relies on the BMP and Toll pathways to different extents. Calcium‐dependent cystein proteases of the Calpain family also exert an important function to pattern the DV axis. In Drosophila, Calpain A cleaves the Cactus/IkappaB inhibitor and modifies Toll signals in ventral regions of the embryo. In Rhodnius
Alison Julio, Helena Araujo
wiley   +1 more source

A predictive model for blastocyst formation based on morphokinetic parameters in time-lapse monitoring of embryo development

open access: yesJournal of Assisted Reproduction and Genetics, 2015
PurposeThe aim of the study was to create a predictive model of blastocyst development based on morphokinetic parameters of time-lapse embryoscope monitoring.MethodsTime-lapse recordings of 432 embryos (obtained from 77 patients), monitored in ...
R. Milewski   +5 more
semanticscholar   +1 more source

High concentrations of fluorescent nanoprobes delayed Oryzias melastigma embryo hatching by modulating respiratory and metabolic pathways

open access: yesVIEW, EarlyView.
We investigated the developmental toxicity of a new graphene‐based fluorescent nanoprobe for tumor cell nucleus (GTTNs) using Oryzias melastigma embryos. The results confirmed that GTTNs have excellent biocompatibility for biomedical applications. Only the highest dose delayed hatching time.
Tianle Tang   +9 more
wiley   +1 more source

Biophysical models of early mammalian embryogenesis

open access: yesStem Cell Reports, 2023
Summary: Embryo development is a critical and fascinating stage in the life cycle of many organisms. Despite decades of research, the earliest stages of mammalian embryogenesis are still poorly understood, caused by a scarcity of high-resolution spatial ...
Alaina Cockerell   +6 more
doaj  

Developmental kinetics of cleavage stage mouse embryos are related to their subsequent carbohydrate and amino acid utilization at the blastocyst stage.

open access: yesHuman Reproduction, 2015
STUDY QUESTION What is the relationship between cleavage stage embryo kinetics, blastocyst metabolism and subsequent embryo viability? SUMMARY ANSWER Embryos cleaving faster at the first cleavage division resulted in blastocysts with a larger inner ...
Y. Lee, G. Thouas, D. Gardner
semanticscholar   +1 more source

Forces Shaping the Blastocyst [PDF]

open access: yesCold Spring Harbor Perspectives in Biology
The blastocyst forms during the first days of mammalian development. The structure of the blastocyst is conserved among placental mammals and is paramount to the establishment of the first mammalian lineages. The blastocyst is composed of an extraembryonic epithelium, the trophectoderm (TE), that envelopes a fluid-filled lumen and the inner cell mass ...
David Rozema, Jean-Léon Maître
openaire   +2 more sources

Harbingers of change: Towards a mechanistic understanding of anticipatory plasticity in animal systems

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Phenotypic plasticity is a strategy by which animals alter behaviour, morphology and/or physiology in response to cues of current conditions to cope with environmental heterogeneity.
Lauren Petrullo   +3 more
wiley   +1 more source

Risk of ectopic pregnancy lowest with transfer of single frozen blastocyst.

open access: yesHuman Reproduction, 2015
STUDY QUESTION What type of transferred embryo is associated with a lower rate of ectopic pregnancy? SUMMARY ANSWER The lowest risk of ectopic pregnancy was associated with the transfer of blastocyst, frozen and single embryo compared with cleavage ...
Zhuoyang Li   +5 more
semanticscholar   +1 more source

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