Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9118792 | Neuropeptides | 2005 | 6 Pages |
Abstract
Galanin and the N-terminal fragment Galanin(1-15) are involved in central cardiovascular regulation. The present paper reviews the recent cardiovascular results obtained by intracisternal injections of Galanin and Galanin(1-15) showing that: (A) the Galanin antagonist M40 blocks the central cardiovascular responses induced by Galanin(1-15) but not those elicited by Galanin; (B) both Galanin and Galanin(1-15) induce the expression of c-Fos in cardiovascular nuclei of the medulla oblongata with different temporal and spatial profiles; (C) the cardiovascular action of Galanin(1-15), but not Galanin, is mediated by peripheral β-receptor stimulation; (D) and it is demonstrated an antagonistic Galanin/α2-adrenoceptors interaction as well as a differential modulation of central cardiovascular responses of Angiotensin II by Galanin or Galanin(1-15). All these data strengthen the involvement of both Galanin molecules as neuromodulators on central cardiovascular regulation.
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Authors
Z. DÃaz-Cabiale, C. Parrado, C. Vela, H. Razani, R. Coveñas, K. Fuxe, J.A. Narváez,