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A key role for postsynaptic 5-HT<jats:sub>1A<\/jats:sub> receptors has recently been suggested in studies of genetic knockout mice.<\/jats:p><\/jats:sec><jats:sec><jats:title>Aims<\/jats:title><jats:p>To measure 5-HT<jats:sub>1A<\/jats:sub> receptor binding in patients with panic disorder in the untreated state and after recovery on treatment with selective serotonin reuptake inhibitors (SSRIs).<\/jats:p><\/jats:sec><jats:sec><jats:title>Method<\/jats:title><jats:p>Nine symptomatic untreated patients with panic disorder, seven patients recovered on SSRI medication and nineteen healthy volunteers underwent a single positron emission tomography (PET) scan using the 5-HT<jats:sub>1A<\/jats:sub> tracer [<jats:sup>11<\/jats:sup>C]WAY-100635.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>In comparison with controls, both presynaptic and postsynaptic 5-HT<jats:sub>1A<\/jats:sub> receptor binding was reduced in untreated patients, with the most significant reductions being in the raphe, orbitofrontal cortex, temporal cortex and amygdala. In recovered patients presynaptic binding was reduced, but there was no significant reduction in postsynaptic binding.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Panic disorder is associated with reduced 5-HT<jats:sub>1A<\/jats:sub> receptor availability, which is also known to have a key role in depression.<\/jats:p><\/jats:sec>","DOI":"10.1192\/bjp.bp.107.041186","type":"journal-article","created":{"date-parts":[[2008,8,31]],"date-time":"2008-08-31T19:12:48Z","timestamp":1220209968000},"page":"229-234","source":"Crossref","is-referenced-by-count":160,"title":["Serotonin 5-HT<sub>1A<\/sub> receptor binding in people with panic disorder: positron emission tomography study"],"prefix":"10.1192","volume":"193","author":[{"given":"Jon R.","family":"Nash","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peter A.","family":"Sargent","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eugenii A.","family":"Rabiner","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sean D.","family":"Hood","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Spilios V.","family":"Argyropoulos","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John P.","family":"Potokar","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paul M.","family":"Grasby","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David J.","family":"Nutt","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"170","published-online":{"date-parts":[[2018,1,2]]},"reference":[{"key":"S0007125000235939_ref12","first-page":"179","volume-title":"ECDEU Assessment Manual for Psychopharmacology. 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