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Articles by Rong-Ming Lyu
Total Records ( 1 ) for Rong-Ming Lyu
  Willis K. Samson , Jian V. Zhang , Orna Avsian-Kretchmer , Kai Cui , Gina L. C. Yosten , Cindy Klein , Rong-Ming Lyu , Yong Xiong Wang , Xiang Qun Chen , Jun Yang , Christopher J. Price , Ted D. Hoyda , Alastair V. Ferguson , Xiao-bin Yuan , Jaw Kang Chang and Aaron J. W. Hsueh
  Somatostatin is important in the regulation of diverse neuroendocrine functions. Based on bioinformatic analyses of evolutionarily conserved sequences, we predicted another peptide hormone in pro-somatostatin and named it neuronostatin. Immuno-affinity purification allowed the sequencing of an amidated neuronostatin peptide of 13 residues from porcine tissues. In vivo treatment with neuronostatin induced c-Fos expression in gastrointestinal tissues, anterior pituitary, cerebellum, and hippocampus. In vitro treatment with neuronostatin promoted the migration of cerebellar granule cells and elicited direct depolarizing actions on paraventricular neurons in hypothalamic slices. In a gastric tumor cell line, neuronostatin induced c-Fos expression, stimulated SRE reporter activity, and promoted cell proliferation. Furthermore, intracerebroventricular treatment with neuronostatin increased blood pressure but suppressed food intake and water drinking. Our findings demonstrate diverse neuronal, neuroendocrine, and cardiovascular actions of a somatostatin gene-encoded hormone and provide the basis to investigate the physiological roles of this endogenously produced brain/gut peptide.
 
 
 
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