The bio-distribution of the antidepressant clomipramine is modulated by chronic stress in mice: effects on behavior.

Abstract:

:Major depression (MD) is one of the most common psychiatric disorders, severely affecting the quality of life of millions of people worldwide. Despite the availability of several classes of antidepressants, treatment efficacy is still very variable and many patients do not respond to the treatment. Clomipramine (CMI), a classical and widely used antidepressant, shows widespread interindividual variability of efficacy, while the environmental factors contributing to such variability remain unclear. We investigated whether chronic stress modulates the bio-distribution of CMI, and as a result the behavioral response to CMI treatment in a mouse model of chronic social defeat stress (CSDS). Our results show that stress exposure increased anxiety-like and depressive-like behaviors and altered the stress response. Chronic defeat stress furthermore significantly altered CMI bio-distribution. Interestingly, CMI bio-distribution highly correlated with anxiety-like and depressive-like behaviors only under basal conditions. Taken together, we provide first evidence demonstrating that chronic stress exposure modulates CMI bio-distribution and behavioral responses. This may contribute to CMI's broad interindividual variability, and is especially relevant in clinical practice.

journal_name

Front Behav Neurosci

authors

Balsevich G,Namendorf C,Gerlach T,Uhr M,Schmidt MV

doi

10.3389/fnbeh.2014.00445

subject

Has Abstract

pub_date

2015-01-06 00:00:00

pages

445

issn

1662-5153

journal_volume

8

pub_type

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