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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neural transmission 103 (1996), S. 947-955 
    ISSN: 1435-1463
    Keywords: Serotonin ; interferon ; wet-dog shake ; opioid receptor
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Acute (1h) intraperitoneal (ip) treatment with interferon (IFN)-α-2a (300IU/g) significantly inhibited wet-dog shakes (WDS) induced by (±)-1-(2,5-dimethoxy-4-iodophenyl)-2 aminopropane (DOI; 0.5, 1.0mg/kg), which is mediated by serotonin (5-hydroxytryptamine; 5-HT)2 receptor in rats. IFN-α did not affect spontaneous locomotion. The inhibition of DOI (0.5mg/kg)-induced WDS by IFN-α was dose (90–300 IU/g)- and time (1–6 h)-dependent, and was prevented by 30 min pretreatment with naltrexone (NLTX; 1.0mg/kg, ip), an opioid receptor antagonist. Acute (1h) intracerebroventricular (icv) treatment with IFN-α (1,500IU/rat) also inhibited DOI (0.5mg/kg)-induced WDS, and the effect was blocked by NLTX (50μg/rat, icv). These results suggest that IFN-α may modulate 5-HT2 receptor-mediated behavior through opioid receptors in the central nervous system.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1435-1463
    Keywords: Keywords: Wet dog shaking behavior (WDS) ; dehydroepiandroste-rone (DHEA) ; dexamethasone ; (±)-1-(2 ; 5-dimethoxy-4-iodophenyl)-2-aminopropane (DOI) ; serotonin-2A (5-HT-2A) receptor.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary. It has been reported that dehydroepiandrosterone (DHEA) or dehydroepiandrosterone sulfate (DHEA-S) is associated with affective disorders and that pathology of affective disorders are related with dysfunction of serotonin(5-HT)-2A receptor-mediated responses. In this study, we investigated the effect of DHEA on (±)-1-(2,5-dimethoxy-4-iodophenyl)-2 aminopropane (DOI), 5-HT-2A receptor agonist, -induced wet dog shaking behavior (WDS) in rats. Acute treatment with DHEA inhibited the DOI-induced WDSs dose dependently. This inhibition was recovered by opioid receptor antagonist, naltrexone. 5-HT-2A receptor-mediated WDSs were desensitized after chronic treatment with DOI, however chronic treatment with DHEA had no effect on this desensitization. Chronic treatment with DHEA had no facilitating effect of chronic dexamethasone treatment on DOI-induced WDSs. These findings may lead the possibility that DHEA has the inhibitory effect of 5-HT-2A mediated signaling pathway via non-genomic action.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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