Abstract:
:Epidemiological data have shown that methamphetamine (MA) abuse significantly increases the risk of developing pulmonary arterial hypertension (PAH). To investigate whether MA could induce PAH and its possible mechanism, rats were exposed daily to MA for 5 weeks in the absence or presence of fluoxetine. The results showed that the pulmonary arterial pressure was not significantly increased, but the pulmonary arterial remodelling was markedly developed in the MA exposure group. The protein expressions of the serotonin transporter (5-HTT) and 5-HT(1B) receptor were increased in the lungs and in the pulmonary arteries of MA-treated rats. Fluoxetine attenuated the pulmonary arterial remodelling and down-regulated the protein expression of 5-HTT and 5-HT(1B) receptor in pulmonary arteries of MA-treated rats. These findings suggest that fluoxetine has a novel potential suppressive effect on the chronic MA-induced pulmonary vascular remodelling and also suggest that 5-HTT and 5-HT(1B) receptor may be involved as part of its mechanism.
journal_name
Basic Clin Pharmacol Toxicoljournal_title
Basic & clinical pharmacology & toxicologyauthors
Liu M,Wang Y,Wang HM,Bai Y,Zhang XH,Sun YX,Wang HLdoi
10.1111/j.1742-7843.2012.00933.xsubject
Has Abstractpub_date
2013-02-01 00:00:00pages
77-82issue
2eissn
1742-7835issn
1742-7843journal_volume
112pub_type
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