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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

The selective sigma2 ligand Lu 28-179 has an antidepressant-like profile in the rat chronic mild stress model of depression.

The selective sigma2 (sigma2) ligand Lu 28-179, or 1'-[4[1-(4-fluorophenyl)-1H-indol-3-yl]-l-butyl]spiro[isobenzofuran++ +-1(3H),4'-piperidine], was studied in the chronic mild stress (CMS) model of depression. The CMS test procedure consists of sequential exposures to a variety of mild stressors for a prolonged period of time and results in behavioural hedonic deficits, which can be measured as decreased consumption of a palatable sucrose solution. In rats, exposure to CMS treatment with citalopram or imipramine for 2 or 4 weeks, respectively, normalized the sucrose intake. Similarly, Lu 28-179 (1.0 mg/kg subcutaneously per day) normalized sucrose intake in rats exposed to CMS. This effect was found in two separate experiments and was achieved after 3 and 4 weeks of treatment, respectively. This suggests an antidepressant potential for Lu 28-179. Doses of 0.01 and 0.1 mg/kg were inactive. Groups exposed to CMS and treated with 0.5, 2.0 or 3.0 mg/kg showed a significantly increased sucrose intake compared with vehicle-treated stressed animals at week 5. However, this effect was confounded by decreased intake in the vehicle controls. Lu 28-179 did not affect sucrose intake in non-stressed rats at any of the doses tested.[1]

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