Abstract:
BACKGROUND:Venlafaxine blocks both serotonin and norepinephrine transporters (SERT and NET), with higher affinity for SERT. Serotonergic effects occur with lower doses, whereas both serotonergic and noradrenergic effects occur with higher doses of venlafaxine. Chronic treatment of rats with selective serotonin reuptake inhibitors decreases SERT binding sites, whereas similar treatment with selective norepinephrine reuptake inhibitors decreases NET binding sites. We hypothesized that venlafaxine would affect monoamine transporters dose-dependently, with low doses causing selective reduction of SERT binding sites and higher doses reducing both SERT and NET binding sites. METHODS:Rats were treated for 21 days with a low (15 mg/kg/day) or high (70 mg/kg/day) dose of venlafaxine, vehicle, or other antidepressants. The SERT and NET density was determined by quantitative autoradiography. RESULTS:Neither dose of venlafaxine nor amitriptyline reduced binding to either the SERT or NET. In rats with noradrenergic terminals destroyed by 6-hydroxydopamine, venlafaxine still failed to reduce SERT binding. Also, rats treated simultaneously with sertraline plus desipramine exhibited reductions in both SERT and NET binding. CONCLUSIONS:Chronic venlafaxine treatment affected SERT and NET binding differently from paroxetine or desipramine. The inability of venlafaxine to reduce SERT or NET binding sites is not due to its dual uptake inhibiting properties.
journal_name
Biol Psychiatryjournal_title
Biological psychiatryauthors
Gould GG,Altamirano AV,Javors MA,Frazer Adoi
10.1016/j.biopsych.2005.07.011subject
Has Abstractpub_date
2006-03-01 00:00:00pages
408-14issue
5eissn
0006-3223issn
1873-2402pii
S0006-3223(05)00864-4journal_volume
59pub_type
杂志文章abstract:BACKGROUND:Cannabis use is associated with an increased risk of psychosis. One study has suggested that genetic variation in the AKT1 gene might influence this effect. METHODS:In a case-control study of 489 first-episode psychosis patients and 278 control subjects, we investigated the interaction between variation at ...
journal_title:Biological psychiatry
pub_type: 杂志文章
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abstract:BACKGROUND:The aim of the present study was to describe the distribution of regional cerebral blood flow during the hypnotic state (HS) in humans, using positron-emission tomography (PET) and statistical parametric mapping. METHODS:The hypnotic state relied on revivification of pleasant autobiographical memories and w...
journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/s0006-3223(97)00546-5
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journal_title:Biological psychiatry
pub_type: 杂志文章,多中心研究
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更新日期:2008-04-15 00:00:00
abstract::Seventeen drug-free patients with Alzheimer's disease (AD) and 15 normal elderly controls, of which 13 age- and sex-matched pairs were included, participated in a study of red blood cell (RBC) and plasma choline. Mean values for RBC choline, plasma choline, and the ratio of RBC/plasma choline did not differ between th...
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journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/0006-3223(92)90231-n
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journal_title:Biological psychiatry
pub_type: 杂志文章
doi:
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pub_type: 杂志文章
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doi:10.1016/j.biopsych.2006.10.027
更新日期:2007-07-01 00:00:00
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pub_type: 临床试验,杂志文章
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doi:
更新日期:1981-12-01 00:00:00
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journal_title:Biological psychiatry
pub_type: 临床试验,杂志文章
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journal_title:Biological psychiatry
pub_type: 杂志文章
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更新日期:2004-05-01 00:00:00
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journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/0006-3223(95)00546-3
更新日期:1996-11-01 00:00:00
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journal_title:Biological psychiatry
pub_type: 杂志文章
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更新日期:1999-08-15 00:00:00
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journal_title:Biological psychiatry
pub_type: 杂志文章
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更新日期:2019-06-01 00:00:00
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journal_title:Biological psychiatry
pub_type: 杂志文章
doi:
更新日期:1984-07-01 00:00:00
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journal_title:Biological psychiatry
pub_type: 杂志文章
doi:
更新日期:1982-01-01 00:00:00
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journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/j.biopsych.2008.04.033
更新日期:2008-09-15 00:00:00