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Inescapable shock-induced potentiation of morphine analgesia in rats: involvement of opioid, GABAergic, and serotonergic mechanisms in the dorsal raphe nucleus

Autor: L C, Sutton, R E, Grahn, E P, Wiertelak, L R, Watkins, S F, Maier

Publikováno v: Behavioral neuroscience. 111(4)

Exposure of rats to inescapable shock (IS) potentiated the analgesic response to a low dose (1 mg/kg) of morphine 24 hr later. This effect was blocked by naltrexone (10 micrograms), diazepam (5 micrograms), or 8-hydroxy-2-(di-n-propylamine)-tetralin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::33c5ea4b5f170957e0e249fa15909f7d
https://pubmed.ncbi.nlm.nih.gov/9267659

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The dorsal raphe nucleus is a site of action mediating the behavioral effects of the benzodiazepine receptor inverse agonist DMCM

Autor: S F, Maier, C R, Busch, S, Maswood, R E, Grahn, L R, Watkins

Publikováno v: Behavioral neuroscience. 109(4)

Systemic administration of benzodiazepine receptor inverse agonists leads to behavioral changes similar to those produced by inescapable shock (IS). The dorsal raphe nucleus (DRN) is a critical structure mediating IS effects. The present experiments

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::fb5c5288bbe49061ec197b03b566261e
https://pubmed.ncbi.nlm.nih.gov/7576219

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8-OH-DPAT microinjected in the region of the dorsal raphe nucleus blocks and reverses the enhancement of fear conditioning and interference with escape produced by exposure to inescapable shock

Autor: S F, Maier, R E, Grahn, L R, Watkins

Publikováno v: Behavioral neuroscience. 109(3)

Prior work suggests that inhibition of the dorsal raphe nucleus (DRN) either during exposure to inescapable electric shock (IS) or during later behavioral testing might block the usual behavioral consequences of IS. The 5-HT1A agonist 8-OH-DPAT was m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::b867c773c2381838c020a558865370ca
https://pubmed.ncbi.nlm.nih.gov/7662151

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Chlordiazepoxide microinjected into the region of the dorsal raphe nucleus eliminates the interference with escape responding produced by inescapable shock whether administered before inescapable shock or escape testing

Autor: S F, Maier, B A, Kalman, R E, Grahn

Publikováno v: Behavioral neuroscience. 108(1)

Systemic administration of benzodiazepines before exposure to inescapable shock (IS) blocks the enhanced fear conditioning and escape learning deficits that follow exposure to IS, whereas administration before the subsequent behavioral testing elimin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::e6f6f94012dea3ddd707e87ac81e62fd
https://pubmed.ncbi.nlm.nih.gov/8192838

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The role of the amygdala and dorsal raphe nucleus in mediating the behavioral consequences of inescapable shock

Autor: S F, Maier, R E, Grahn, B A, Kalman, L C, Sutton, E P, Wiertelak, L R, Watkins

Publikováno v: Behavioral neuroscience. 107(2)

It has been argued that exposure to inescapable shock produces later behavioral changes such as poor shuttle box escape learning because it leads to the conditioning of intense fear, which later transfers to the shuttle box test situation and interfe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::1ec48564fa1df212324ae355ed19598f
https://pubmed.ncbi.nlm.nih.gov/8484901

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