{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,23]],"date-time":"2025-10-23T16:37:05Z","timestamp":1761237425359,"version":"3.33.0"},"reference-count":43,"publisher":"Canadian Science Publishing","issue":"12","license":[{"start":{"date-parts":[[2006,12,1]],"date-time":"2006-12-01T00:00:00Z","timestamp":1164931200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/www.nrcresearchpress.com\/page\/about\/CorporateTextAndDataMining"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Can. J. Physiol. Pharmacol."],"published-print":{"date-parts":[[2006,12]]},"abstract":"<jats:p>Sibutramine has been described as an anti-obesity drug with the ability to inhibit serotonin (5-HT), noradrenaline, and dopamine re-uptake, but without affinity to histamine and muscarinic receptors. On the other hand, cyproheptadine antagonizes serotonin 5-HT<jats:sub>2A<\/jats:sub>, 5-HT<jats:sub>2B<\/jats:sub>, and 5-HT<jats:sub>2C<\/jats:sub>, histamine H1, and muscarinic (M) receptors. There are many reports concerning the influence of sibutramine on central serotoninergic pathways. In this study, we suggest that peripheral pathways may also be involved in the serotoninergic effects of sibutramine. In vivo experiments were undertaken to investigate the serotoninergic effects of sibutramine on body mass, the glycogen concentration in the diaphragm of rats, and locomotor behaviour. Rats were submitted to oral treatment with sibutramine, cyproheptadine, or sibutramine applied in combination with cyproheptadine, for a period of 2 months to investigate the 5-HT<jats:sub>2<\/jats:sub>effects of sibutramine on these parameters. As the results demonstrated, the lower increase in body mass and the increased glycogen levels in the diaphragm muscle of rats treated with sibutramine seem to be modulated by 5-HT<jats:sub>2<\/jats:sub>receptors, since these effects were completely antagonized by cyproheptadine in the group treated with the 2 drugs co-applied. Furthermore, the behavioural results also suggest that mechanisms modulated by 5-HT<jats:sub>2<\/jats:sub>receptors are involved in the increase of locomotion in the rats treated with sibutramine, since the effect did not occur in the rats treated with sibutramine co-applied with the 5-HT<jats:sub>2<\/jats:sub>receptor antagonist, cyproheptadine. The results suggest that sibutramine modifies energy-related parameters such as body mass, diaphragm glycogen, and locomotor behaviour in rats via 5-HT<jats:sub>2<\/jats:sub>serotoninergic pathways.<\/jats:p>","DOI":"10.1139\/y06-082","type":"journal-article","created":{"date-parts":[[2007,5,8]],"date-time":"2007-05-08T15:56:54Z","timestamp":1178639814000},"page":"1239-1244","source":"Crossref","is-referenced-by-count":6,"title":["Locomotor and peripheral effects of sibutramine modulated by 5-HT<sub>2<\/sub>receptors"],"prefix":"10.1139","volume":"84","author":[{"given":"Silvana Soriano","family":"Frassetto","sequence":"first","affiliation":[{"name":"Universidade Luterana do Brasil, Curso de Farm\u00e1cia e Biomedicina, Av. 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