Abstract
Microinjections of Leu-enkephalin into the dorsal vagal complex induced hypotension and bradycardia. Both naloxone, given at a dose conferring selectivity for μ receptors, and the δ antagonist ICI 154,129 prevented the cardiovascular effects of Leu-enkephalin. Naloxone was also found to decrease the gain of the baroreflex. These results suggest that Leu-enkephalin is involved in cardiovascular regulation through activation of δ-, and possibly μ-, opioid receptors in the dorsal vagal complex.
Original language | English (US) |
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Pages (from-to) | 331-336 |
Number of pages | 6 |
Journal | Brain Research |
Volume | 709 |
Issue number | 2 |
DOIs | |
State | Published - Feb 19 1996 |
Externally published | Yes |
Keywords
- δ
- μ
- Autonomic
- Enkephalin
- ICI 154,129
- Naloxone
- Opioid
- Solitarius
- Vagal
ASJC Scopus subject areas
- Neuroscience(all)