TAILIEUCHUNG - Báo cáo khoa học: Roles of prolactin-releasing peptide and RFamide related peptides in the control of stress and food intake

Subsequent to the isolation of the first recognized RFamide neuropeptide, FMRFamide, from the clam, a large number of these peptides have been identified. There are now five groups of RFamide peptides identified in mammals. RFamide peptides show diversity with respect to their N-termi-nal sequence and biological activity. | 1FEBS Journal MINIREVIEW Roles of prolactin-releasing peptide and RFamide related peptides in the control of stress and food intake Yuki Takayanagi and Tatsushi Onaka Division of Brain and Neurophysiology Department of Physiology Jichi MedicalUniversity Japan Keywords dorsomedialhypothalamus energy consumption energy metabolism food intake nucleus tractus solitarii oxytocin prolactin-releasing peptide RFamide peptide RFamide-related peptide stress Correspondence T. Onaka Division of Brain and Neurophysiology Department of Physiology Jichi MedicalUniversity Shimotsuke-shi Tochigi-ken 329-0498 Japan Fax 81 285 44 8147 Tel 81 285 58 7318 E-mail tonaka@ Received 13 June 2010 revised 2 September 2010 accepted 13 October 2010 doi Subsequent to the isolation of the first recognized RFamide neuropeptide FMRFamide from the clam a large number of these peptides have been identified. There are now five groups of RFamide peptides identified in mammals. RFamide peptides show diversity with respect to their N-termi-nal sequence and biological activity. RFamide peptides have been implicated in a variety of roles including energy metabolism stress and pain modulation as well as effects in the neuroendocrine and cardiovascular systems. In the present minireview we focus on prolactin-releasing peptide PrRP and RFamide related peptide RFRP with respect to their roles in the control of energy metabolism and stress responses. Both food intake and stressful stimuli activate PrRP neurons. The administration of PrRP affects energy metabolism and neuroendocrine systems. PrRP-deficient or PrRP receptor-deficient mice show abnormal energy metabolism and or stress responses. On the other hand RFRP neurons are activated by stressful stimuli and the administration of RFRP induces neuroendocrine and behavioral stress responses. Taken together these data suggests that PrRP and RFRP neurons play a role in the control of energy metabolism and or stress .

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