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Neuropeptide Y and gamma-melanocyte stimulating hormone (gamma-MSH) share a common pressor mechanism of action
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience.
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2009 (English)In: Endocrine (Basingstoke), ISSN 1355-008X, Vol. 35, no 3, 312-324 p.Article in journal (Refereed) Published
Abstract [en]

Central circuits known to regulate food intake and energy expenditure also affect central cardiovascular regulation. For example, both the melanocortin and neuropeptide Y (NPY) peptide families, known to regulate food intake, also produce central hypertensive effects. Members of both families share a similar C-terminal amino acid residue sequence, RF(Y) amide, a sequence distinct from that required for melanocortin receptor binding. A recently delineated family of RFamide receptors recognizes both of these C-terminal motifs. We now present evidence that an antagonist with Y1 and RFamide receptor activity, BIBO3304, will attenuate the central cardiovascular effects of both gamma-melanocyte stimulating hormone (gamma-MSH) and NPY. The use of synthetic melanocortin and NPY peptide analogs excluded an interaction with melanocortin or Y family receptors. We suggest that the anatomical convergence of NPY and melanocortin neurons on cardiovascular control centers may have pathophysiological implications through a common or similar RFamide receptor(s), much as they converge on other nuclei to coordinately control energy homeostasis.

Place, publisher, year, edition, pages
2009. Vol. 35, no 3, 312-324 p.
Keyword [en]
gamma-MSH, Neuropeptide Y, Hypertensive effects, Central nervous system, RFamide peptides, RFamide receptors, Y1 antagonists, Central vasopressin system
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-123964DOI: 10.1007/s12020-008-9141-3ISI: 000266476500008PubMedID: 19363600OAI: oai:DiVA.org:uu-123964DiVA: diva2:317701
Available from: 2010-05-04 Created: 2010-04-30 Last updated: 2010-07-28Bibliographically approved

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