Results 41 to 50 of about 46,128 (270)

Electroactivation of zebrafish (Danio rerio) eggs

open access: yesSpanish Journal of Agricultural Research, 2011
In zebrafish, initial egg activation by water after being discharged from the ovarian stroma is followed by normal cleavages only in inseminated eggs. When sperm (genetically active or not) is not used as activating agent, reproductive techniques (as either nuclear transplant or intracytoplasmic sperm injection are ineff icient.
Cardona-Costa, J.   +2 more
openaire   +6 more sources

A comparative analysis of transcription factor expression during metazoan embryonic development. [PDF]

open access: yesPLoS ONE, 2013
During embryonic development, a complex organism is formed from a single starting cell. These processes of growth and differentiation are driven by large transcriptional changes, which are following the expression and activity of transcription factors ...
Alicia N Schep, Boris Adryan
doaj   +1 more source

Cadmium and visual performance in Danio rerio

open access: yesJournal of Biological Research, 2013
This study describes the negative effects exerted by cadminum intoxication on behavioral responses to re-illumination with white or colored light in the zebrafish, Danio rerio.
C.M. Motta, P. Simoniello
doaj   +1 more source

TARDBP (TDP‐43) Knock‐in Zebrafish Display a Late‐Onset Motor Phenotype and Loss of Large Spinal Cord Motor Neurons

open access: yesAnnals of Neurology, EarlyView.
Objective Mutations in TARDBP (encoding TDP‐43) are associated with the neurodegenerative disease amyotrophic lateral sclerosis (ALS) and include familial missense mutations where there are a lack of models and mechanisms examining how they are pathogenic.
Ziyaan A. Harji   +10 more
wiley   +1 more source

Effects of Subchronic Exposure of Diclofenac on Growth, Histopathological Changes, and Oxidative Stress in Zebrafish (Danio rerio)

open access: yesThe Scientific World Journal, 2014
The aim of this study was to investigate effects of subchronic exposure to sublethal levels of diclofenac on growth, oxidative stress, and histopathological changes in Danio rerio. The juvenile growth tests were performed on Danio rerio according to OECD
Eva Praskova   +10 more
doaj   +1 more source

Sex blind: bridging the gap between drug exposure and sex-related gene expression in Danio rerio using next-generation sequencing (NGS) data and a literature review to find the missing links in pharmaceutical and environmental toxicology studies

open access: yesFrontiers in Toxicology, 2023
The sex of both humans and Danio rerio has previously been shown to affect the way individuals respond to drug exposure. Genes which allow identification of sex in juvenile zebrafish show potential to reveal these confounding variables between sex in ...
Alex C. King, Armin K. Zenker
doaj   +1 more source

Quantity discrimination by zebrafish (Danio rerio).

open access: yesJournal of Comparative Psychology, 2015
Discrimination of quantity (magnitude) was investigated in zebrafish (Danio rerio). Male zebrafish chose to approach the location previously occupied by the larger in number between 2 groups of female conspecifics (no longer visible at test) in sets of 1 versus 2 items, and 2 versus 3 items, but failed at 3 versus 4 items; similarly, when tested with ...
Potrich D.   +3 more
openaire   +4 more sources

Bioimaging of sense organs and the central nervous system in extant fishes and reptiles in situ: A review

open access: yesThe Anatomical Record, EarlyView.
Bioimaging of the sense organs and brain of fishes and reptiles. Left panel: 3D reconstruction of the head and brain of the deep‐sea viperfish Chauliodus sloani following diceCT. Right panel: A 3D reconstruction of a 70‐day‐old embryo head of the bearded dragon Pogona vitticeps following diceCT, showing the position of the segmented brain within the ...
Shaun P. Collin   +9 more
wiley   +1 more source

Effect of Enriched Feed by Different n-6 Fatty Acids Levels at 0% of n-3 on Danio rerio Reproductive Performance

open access: yesJurnal Akuakultur Indonesia, 2007
Lipid and fatty acids are two factors determining reproductive performance of fish and survival rate of hatched larvae. Lipid has important role as energy source and to maintain the stability of membrane permeability.
N.B.P Utomo, A. Rosmawati, I. Mokoginta
doaj   +1 more source

The zebrafish (Danio rerio) snoRNAome

open access: yesNAR Genomics and Bioinformatics
Small nucleolar RNAs (snoRNAs) are one of the most abundant and evolutionary ancient group of functional non-coding RNAs. They were originally described as guides of post-transcriptional rRNA modifications, but emerging evidence suggests that snoRNAs fulfil an impressive variety of cellular functions, some of which are only being discovered.
Renáta Hamar, Máté Varga
openaire   +2 more sources

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