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Gene. 2013 Sep 15;527(1):193-200. doi: 10.1016/j.gene.2013.06.003. Epub 2013 Jun 15.

Characterization, tissue distribution and regulation of agouti-related protein (AgRP) in a cyprinid fish (Schizothorax prenanti).

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1
Department of Aquaculture, Sichuan Agricultural University, 46# Xinkang Road, Yaan, China.

Abstract

Agouti-related protein (AgRP) is an important neuropeptide involved in the regulation of feeding in both mammals and fish. In this study, we have cloned the full-length cDNA sequence for AgRP in a cyprinid fish (Schizothorax prenanti). The AgRP gene, encoding 126-amino acids, was strongly expressed in the brain. The AgRP gene was detected in embryos at developmental stages. Further, its mRNA was detectable in unfertilized eggs. An experiment was conducted to determine the expression profile of AgRP during short-term and long-term fasting of the hypothalamus. The expression level of AgRP in unfed fish was significantly increased at 3 and 4h post-fasting than in fed fish but did not affect AgRP mRNA expression after 14 days fasting. Overall, our results suggest that AgRP is a conserved peptide that might be involved in the regulation of short-term feeding and other physiological function in Schizothorax prenanti.

KEYWORDS:

ARC; ASIP; AgRP; Appetite regulation; CART; Cloning; Expression pattern; LHRH; Luteinizing Hormone Releasing Hormone; MC3-R; MC4-R; MCRs; MS-222; NPY; ORF; Open reading frame; POMC; Schizothorax prenanti; Structure; TSGD; agouti-related protein; agouti-signaling protein; arcuate nucleus; cocaine and amphetamine regulated transcript; hour post fertilization; hpf; melanocortin receptor 3; melanocortin receptor 4; melanocortin receptors; neuropeptide Y; proopiomelanocortin; teleost-specific genome duplication; tricaine methanesulfonate

PMID:
23774689
DOI:
10.1016/j.gene.2013.06.003
[Indexed for MEDLINE]
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