alexa Proteomic and gene expression analysis of zebrafish brain undergoing continuous light dark stress.
Neurology

Neurology

Neurochemistry & Neuropharmacology

Author(s): Purushothaman S, Saxena S, Meghah V, Meena Lakshmi MG, Singh SK,

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Abstract Several organisms irrespective of their complexity in structure and function have an inbuilt circadian rhythm. Zebrafish could be used as an alternate model animal in sleep research as it exhibits similar sleep-wake dynamics as mammals and Drosophila. In this study, we have analysed the adult zebrafish brain for its differential proteome and gene expression during perturbed light/dark cycle. A total of 53 and 25 proteins including sncb, peroxiredoxins and TCR alpha were identified based on two-dimensional gel electrophoresis Fourier transform mass spectrometer/ion trap tandem mass spectrometer and differential in-gel electrophoresis MALDI TOF MS/MS analysis, respectively, with at least 1.5-fold changes between the control and experimental brains. Real time-polymerase chain reaction revealed that many circadian pathway-associated genes, such as per1b, bmal1b, cry1b, bmal2 and nr1d2, were differentially regulated during continuous light/dark exposures. It is hypothesized that the differential regulation of these genes might lead to the discovery of potential diagnostic markers for gaining insight into the light/dark-associated stress in humans. © 2015 European Sleep Research Society. This article was published in J Sleep Res and referenced in Neurochemistry & Neuropharmacology

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