The transcripts of CRF and CRF receptors under fasting stress in Dabry's sturgeon (Acipenser dabryanus Dumeril)
文献类型： 外文期刊
作者： Qi, Jinwen 1 ; Tang, Ni 1 ; Wu, Yuanbin 1 ; Chen, Hu 1 ; Wang, Shuyao 1 ; Wang, Bin 1 ; Xu, Shaoqi 1 ; Wang, Mei 1 ; Zhang, 1 ;
作者机构： 1.Sichuan Agr Univ, Coll Anim Sci & Technol, Dept Aquaculture, 211 Huimin Rd, Chengdu, Sichuan, Peoples R China
2.Ocean Univ China, Fisheries Coll, Minist Educ, Key Lab Mariculture, 5 Yushan Rd, Qingdao, Shandong, Peoples R China
3.Sichuan Acad Agr Sci, Fisheries Inst, 156 Gaozhuang Bridge Community, Yibin, Sichuan, Peoples R China
关键词： CRF; CRF receptors; Transcripts; Fasting; Dabry's sturgeon
期刊名称：GENERAL AND COMPARATIVE ENDOCRINOLOGY （ 影响因子：2.822； 五年影响因子：2.772 ）
ISSN： 0016-6480
年卷期： 2019 年 280 卷
页码：
收录情况： SCI
摘要： Dabry's sturgeon (Acipenser dabryanus Dumeril, 1868) belongs to Sturgeon and is distributed throughout the mainstream of the upper Yangtze River. While there is little research on physiological mechanism of Dabry's sturgeon, such as feeding regulation by the CRF system. At present, CRF is thought to regulate feeding via CRF receptors (CRF-Rs) in several mammals, but relatively few studies of CRF and feeding exist in teleosts. Herein, the transcripts of CRF and CRF-Rs under fasting stress in Dabry's sturgeon (Acipenser dabryanus Dumeril) have been explored. A full length Dabry's sturgeon CRF cDNA of 953 by was identified, which contained a 447 by open reading frame (ORF). A partial CRF-R1 cDNA of 1053 by and CRF-R2 cDNA of 906 by corresponding to the coding sequences (CDS) was obtained. In addition, analysis of the tissue distribution of CRF and CRF-Rs mRNAs revealed they were widely distributed in the central and peripheral nervous systems. Furthermore, periprandial (preprandial and postprandial), fasting, and re-feeding experiments revealed CRF mRNA was significantly increased 1 h and 3 h after feeding and CRF and CRF-Rs transcripts were significantly decreased after 10 days fasting, and significantly increased on re-feeding on day 10. These results suggest that CRF and CRF-Rs might regulate feeding by acting as satiety factors.
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