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Converging evidence in support of the serotonin hypothesis of dexfenfluramine-induced pulmonary hypertension with novel transgenic mice.

TitleConverging evidence in support of the serotonin hypothesis of dexfenfluramine-induced pulmonary hypertension with novel transgenic mice.
Publication TypeJournal Article
Year of Publication2008
AuthorsDempsie Y, Morecroft I, Welsh DJ, MacRitchie NA, Herold N, Loughlin L, Nilsen M, Peacock AJ, Harmar A, Bader M, MacLean MR
JournalCirculation
Volume117
Issue22
Pagination2928-37
Date Published2008 Jun 3
ISSN1524-4539
KeywordsAnimals, Anoxia, Dexfenfluramine, Hypertension, Pulmonary, Mice, Mice, Transgenic, p38 Mitogen-Activated Protein Kinases, Serotonin, Serotonin Plasma Membrane Transport Proteins, Serotonin Receptor Agonists, Tryptophan Hydroxylase
AbstractThe incidence of pulmonary arterial hypertension secondary to the use of indirect serotinergic agonists such as aminorex and dexfenfluramine led to the "serotonin hypothesis" of pulmonary arterial hypertension; however, the role of serotonin in dexfenfluramine-induced pulmonary arterial hypertension remains controversial. Here, we used novel transgenic mice lacking peripheral serotonin (deficient in tryptophan hydroxylase-1; Tph1(-/-) mice) or overexpressing the gene for the human serotonin transporter (SERT; SERT(+) mice) to investigate this further.
Alternate JournalCirculation
Refereed DesignationRefereed