Results 11 to 20 of about 15,474 (218)

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+15 more sources

Thyroid Hormone Receptor Is Essential for Larval Epithelial Apoptosis and Adult Epithelial Stem Cell Development but Not Adult Intestinal Morphogenesis during Xenopus tropicalis Metamorphosis

open access: yesCells, 2021
Vertebrate postembryonic development is regulated by thyroid hormone (T3). Of particular interest is anuran metamorphosis, which offers several unique advantages for studying the role of T3 and its two nuclear receptor genes, TRα and TRβ, during ...
Yuki Shibata   +5 more
doaj   +1 more source

Identification and differential expression of microRNAs during metamorphosis of the Japanese flounder (Paralichthys olivaceus). [PDF]

open access: yesPLoS ONE, 2011
BACKGROUND: MicroRNAs (miRNAs) are a class of endogenous small non-coding RNAs of 20-25 nucleotides that play a key role in diverse biological processes. Japanese flounder undergo dramatic metamorphosis in their early development.
Yuanshuai Fu   +5 more
doaj   +1 more source

Enzymatic activity of bone markers on Lithobates catesbeianus (Shaw, 1802) growth during the ossification process

open access: yesBrazilian Journal of Biology, 2021
In order to better understand the ossification processes in anurans our study was carried out on tadpoles and adults of Lithobates catesbeianus. In this sense, we characterized the kinetic properties of alkaline phosphatase with p-nitrophenylphosphatase (
R. R. Colosio   +5 more
doaj   +1 more source

Relationship between serum thyroid hormones and their associated metabolites, and gene expression bioindicators in the back skin of Rana [Lithobates] catesbeiana tadpoles and frogs during metamorphosis

open access: yesFrontiers in Endocrinology, 2023
Anuran metamorphosis is characterized by profound morphological changes including remodeling of tissues and organs. This transition is initiated by thyroid hormones (THs).
Rikke Poulsen   +4 more
doaj   +1 more source

Temporal and spatial transcriptomic dynamics across brain development in Xenopus laevis tadpoles

open access: yesG3: Genes, Genomes, Genetics, 2021
Amphibian metamorphosis is a transitional period that involves significant changes in the cell-type populations and biological processes occurring in the brain.
Aaron C Ta   +5 more
doaj   +1 more source

Identification and differential regulation of microRNAs during thyroid hormone-dependent metamorphosis in Microhyla fissipes

open access: yesBMC Genomics, 2018
Background Anuran metamorphosis, which is obligatorily initiated and sustained by thyroid hormone (TH), is a dramatic example of extensive morphological, biochemical and cellular changes occurring during post-embryonic development.
Lusha Liu   +4 more
doaj   +1 more source

Virus Membrane Fusion Proteins: Biological Machines that Undergo a Metamorphosis

open access: yesBioscience Reports, 2000
Fusion proteins from a group of widely disparate viruses, including the paramyxovirus F protein, the HIV and SIV gp160 proteins, the retroviral Env protein, the Ebola virus Gp, and the influenza virus haemagglutinin, share a number of common features. All contain multiple glycosylation sites, and must be trimeric and undergo proteolytic cleavage to be ...
R E, Dutch, T S, Jardetzky, R A, Lamb
openaire   +2 more sources

Metamorphosis of the invasive ascidian Ciona savignyi: environmental variables and chemical exposure [PDF]

open access: yesPeerJ, 2016
In this study, the effects of environmental variables on larval metamorphosis of the solitary ascidian Ciona savignyi were investigated in a laboratory setting.
Patrick L. Cahill   +3 more
doaj   +2 more sources

Amyloid Formation by Globular Proteins: The Need to Narrow the Gap Between in Vitro and in Vivo Mechanisms

open access: yesFrontiers in Molecular Biosciences, 2022
The globular to fibrillar transition of proteins represents a key pathogenic event in the development of amyloid diseases. Although systemic amyloidoses share the common characteristic of amyloid deposition in the extracellular matrix, they are ...
Giulia Faravelli   +20 more
doaj   +1 more source

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