β-Carboline harmine reverses the effects induced by stress on behaviour and citrate synthase activity in the rat prefrontal cortex

2013 ◽  
Vol 25 (6) ◽  
pp. 328-333 ◽  
Author(s):  
Helena Mendes Abelaira ◽  
Gislaine Zilli Réus ◽  
Giselli Scaini ◽  
Emilio Luiz Streck ◽  
José Alexandre Crippa ◽  
...  
Keyword(s):  
Prefrontal Cortex ◽  
Energy Metabolism ◽  
Citrate Synthase ◽  
Memory Performance ◽  
Chronic Mild Stress ◽  
Mild Stress ◽  
Sucrose Intake ◽  
The Brain

ObjectivesThe present study was aimed at evaluating the effects of the administration of β-carboline harmine on behaviour and citrate synthase activity in the brain of rats exposed to chronic mild stress (CMS) procedure.MethodsTo this aim, after 40 days of exposure to CMS procedure, rats were treated with harmine (15 mg/kg/day) for 7 days, then memory, anhedonia and citrate synthase activity were assessed.ResultOur findings demonstrated that stressed rats treated with saline increased the sucrose intake, and the stressed rats treated with harmine reversed this effect. Neither stress nor harmine treatment altered memory performance in rats. In addition, chronic stressful situations induced increase in citrate synthase activity in the prefrontal cortex, but not in the hippocampus and striatum. Treatment with harmine reversed the increase in citrate synthase activity in the prefrontal cortex.ConclusionThese findings support the hypothesis that harmine could be involved in controlling the energy metabolism.

Minocycline protects against oxidative damage and alters energy metabolism parameters in the brain of rats subjected to chronic mild stress

2014 ◽  
Vol 30 (2) ◽  
pp. 545-553 ◽  
Author(s):  
Gislaine Z. Réus ◽  
Helena M. Abelaira ◽  
Amanda L. Maciel ◽  
Maria Augusta B. dos Santos ◽  
Anelise S. Carlessi ◽  
...  
Keyword(s):  
Energy Metabolism ◽  
Oxidative Damage ◽  
Chronic Mild Stress ◽  
Mild Stress ◽  
The Brain

scholarly journals Haloperidol and aripiprazole impact on the BDNF and glucocorticoid receptor levels in the rat hippocampus and prefrontal cortex: effect of the chronic mild stress

2021 ◽  
Vol 55 (3) ◽  
pp. 153-162
Author(s):  
Jana Osacka ◽  
Romana Koprdova ◽  
Andrej Tillinger ◽  
Zdenko Pirnik ◽  
Alexander Kiss
Keyword(s):  
Prefrontal Cortex ◽  
Weight Gain ◽  
Glucocorticoid Receptor ◽  
Chronic Mild Stress ◽  
Mild Stress ◽  
Typical Antipsychotic ◽  
Mrna Levels ◽  
Frozen Sections ◽  
Bdnf Mrna ◽  
The Brain

Abstract Objective. Changes in the brain derived neurotrophic factor (BDNF) and glucocorticoid receptor (GR) expression in the prefrontal cortex (PFC) and hippocampus (HIP) are associated with psychiatric diseases and stress response. Chronic mild stress (CMS) may alter BDNF as well as GR levels in both the PFC and the HIP. The aim of the present study was to find out whether chronic treatment with a typical antipsychotic haloperidol (HAL) and an atypical antipsychotic aripiprazole (ARI) may modify the CMS effect on the BDNF and GR expression in the above-mentioned structures. Methods. The rats were exposed to CMS for 3 weeks and from the 7th day of CMS injected with vehicle (VEH), HAL (1 mg/kg) or ARI (10 mg/kg) for 4 weeks. BDNF and GR mRNA levels were established in the PFC and the HIP by Real Time PCR, whereas, PFC and HIP samples were obtained by punching them from 500 µm thick frozen sections. C-Fos immunoreactivity was analyzed in the PFC and the HIP on 30 µm thick paraformaldehyde fixed sections. Weight gain and corticosterone (CORT) levels were also measured. Results. The CMS and HAL suppressed the BDNF and GR mRNA levels in the PFC. In the HIP, CMS elevated BDNF mRNA levels that were suppressed by HAL and ARI treatments. The CMS decreased the c-Fos immunoreactivity in the PFC in both HAL- and ARI-treated animals. In the HIP, HAL increased the c-Fos immunoreactivity that was again diminished in animals exposed to CMS. Stressed animals gained markedly less weight until the 7th day of CMS, however, later their weight gain did not differ from the unstressed ones or was even higher in CMS+HAL group. Un-stressed HAL and ARI animals gained less weight than the VEH ones. Neither CMS nor HAL/ARI affected the plasma CORT levels. Conclusion. The present data indicate that HAL and ARI in the doses 1 mg/kg or 10 mg/kg, respectively, does not modify the effect of the CMS preconditioning on the BDNF and GR mRNA levels in the PFC or the HIP. However, HAL seems to modify the CMS effect on the HIP activation.

Rapid antidepressant effects of deep brain stimulation of the pre-frontal cortex in an animal model of treatment-resistant depression

2018 ◽  
Vol 32 (10) ◽  
pp. 1133-1140 ◽  
Author(s):  
Mariusz Papp ◽  
Piotr Gruca ◽  
Magdalena Lason ◽  
Katarzyna Tota-Glowczyk ◽  
Monika Niemczyk ◽  
...  
Keyword(s):  
Prefrontal Cortex ◽  
Deep Brain Stimulation ◽  
Brain Stimulation ◽  
Antidepressant Drugs ◽  
Chronic Mild Stress ◽  
Mild Stress ◽  
Sucrose Intake ◽  
Treatment Resistant ◽  
Deep Brain ◽  
Stimulation Of

Background: A significant proportion of depressed patients fail to respond to treatment with antidepressant drugs. Such patients might nonetheless respond to deep brain stimulation of the prefrontal cortex. Deep brain stimulation has also been shown to normalize behaviour in the chronic mild stress (CMS) model of depression. However, these studies have involved animals that are in general treatment responsive. Thus, this is not the ideal situation in which to investigate how deep brain stimulation is effective where antidepressant drugs are not. Aims: Here, we studied the behavioural effects of deep brain stimulation in treatment-resistant animals. Methods: Wistar rats were exposed to chronic mild stress and concurrent treatment with saline or one of three antidepressant drugs, imipramine, citalopram and venlafaxine. Individuals were selected from the CMS-exposed drug-treated groups that had failed to increase their sucrose intake by week 5 of drug treatment. All animals were then implanted with deep brain stimulation electrodes in the ventro-medial prefrontal cortex, and tested for sucrose intake and in the elevated plus maze and novel object recognition test, following 2 × 2 h of deep brain stimulation. Results: The selected drug-treated animals were found to be antidepressant-resistant in all three tests. With a single exception (sucrose intake in imipramine-treated animals), deep brain stimulation reversed the anhedonic, anxiogenic and dyscognitive effects of CMS in all four conditions, with no significant differences between saline- and drug-treated animals. Conclusions: These data provide a proof of principle that deep brain stimulation of the prefrontal cortex can be effective in a rat model of resistance to chronic antidepressant treatment, replicating the clinical effect of deep brain stimulation in treatment-resistant depression.

The role of prefrontal cortex dopamine D2 and D3 receptors in the mechanism of action of venlafaxine and deep brain stimulation in animal models of treatment-responsive and treatment-resistant depression

2019 ◽  
Vol 33 (6) ◽  
pp. 748-756 ◽  
Author(s):  
Mariusz Papp ◽  
Piotr Gruca ◽  
Magdalena Lason ◽  
Monika Niemczyk ◽  
Paul Willner
Keyword(s):  
Prefrontal Cortex ◽  
Deep Brain Stimulation ◽  
Brain Stimulation ◽  
Memory Consolidation ◽  
Wistar Rats ◽  
Chronic Mild Stress ◽  
Mild Stress ◽  
Wistar Kyoto Rats ◽  
Wistar Kyoto ◽  
Deep Brain

Aims: The Wistar-Kyoto rat has been validated as an animal model of treatment-resistant depression. Here we investigated a role of dopamine D2 and D3 receptors in the ventro-medial prefrontal cortex in the mechanism of action of deep brain stimulation in Wistar-Kyoto rats and venlafaxine in Wistar rats. Methods: Wistar or Wistar-Kyoto rats were exposed chronically to chronic mild stress. Wistar rats were treated chronically with venlafaxine (10 mg/kg) beginning after two weeks of chronic mild stress; Wistar-Kyoto rats received two sessions of deep brain stimulation before behavioural tests. L-742,626 (1 µg), a D2 receptor agonist, or 7-OH DPAT (3 µg), a D3 receptor antagonist, were infused into the ventro-medial prefrontal cortex immediately following the exposure trial in the Novel Object Recognition Test, and discrimination between novel and familiar object was tested one hour later. Results: Chronic mild stress decreased sucrose intake and impaired memory consolidation; these effects were reversed by venlafaxine in Wistar rats and deep brain stimulation in Wistar-Kyoto rats. In control animals, L-742,626 and 7-OH DPAT also impaired memory consolidation. In Wistar rats, venlafaxine reversed the effect of L-742,626 in controls, but not in the chronic mild stress group, and venlafaxine did not reverse the effect of 7-OH DPAT in either group. In Wistar-Kyoto rats, deep brain stimulation reversed the effect of both L-742,626 and 7-OH DPAT in both control and chronic mild stress groups. Conclusions: We conclude that the action of venlafaxine to reverse the impairment of memory consolidation caused by chronic mild stress in Wistar rats involves D2 receptors in the ventro-medial prefrontal cortex; but the effect of deep brain stimulation to reverse the same effect in Wistar-Kyoto rats does not.

Poster #S22 THE ANTI-ANHEDONIC PROPERTIES OF LURASIDONE IN THE CHRONIC MILD STRESS MODEL ARE ASSOCIATED WITH SYNAPTIC AND NEUROPLASTIC CHANGES IN THE RAT PREFRONTAL CORTEX

2014 ◽  
Vol 153 ◽  
pp. S95-S96
Author(s):  
Marco A. Riva ◽  
Flavia Macchi ◽  
Andrea C. Rossetti ◽  
Mariusz Papp ◽  
Raffaella Molteni
Keyword(s):  
Prefrontal Cortex ◽  
Chronic Mild Stress ◽  
Mild Stress ◽  
Stress Model

INFLUENCE OF INDIVIDUAL OR GROUP HOUSING ON SUCROSE INTAKE RESPONDINGTO CHRONIC MILD STRESS (CMS) IMPOSITION IN MALE CD1 MICE

1998 ◽  
Vol 9 (1) ◽  
pp. S71
Author(s):  
J. L. Paya-Cano ◽  
A. Calvo Torrenta ◽  
M. A. Pico-Alfonsoa ◽  
RF. Brain ◽  
M. Martinez
Keyword(s):  
Chronic Mild Stress ◽  
Mild Stress ◽  
Group Housing ◽  
Sucrose Intake ◽  
Cd1 Mice

scholarly journals Involvement of Infralimbic Prefrontal Cortex but not Lateral Habenula in Dopamine Attenuation After Chronic Mild Stress

2016 ◽  
Vol 42 (4) ◽  
pp. 904-913 ◽  
Author(s):  
Jared L Moreines ◽  
Zoe L Owrutsky ◽  
Anthony A Grace
Keyword(s):  
Prefrontal Cortex ◽  
Chronic Mild Stress ◽  
Mild Stress ◽  
Lateral Habenula
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