Synergetic effects of quetiapine and venlafaxine in preventing the chronic restraint stress-induced decrease in cell proliferation and BDNF expression in rat hippocampus

Hippocampus ◽  
2006 ◽  
Vol 16 (6) ◽  
pp. 551-559 ◽  
Author(s):  
Haiyun Xu ◽  
Zhong Chen ◽  
Jue He ◽  
Samson Haimanot ◽  
Xiaokun Li ◽  
...  
Nutrients ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3640
Author(s):  
Kyung-A. Hwang ◽  
Hye-Jeong Hwang ◽  
Yu Jin Hwang ◽  
Young Jun Kim

Mustard leaf (Brassica juncea var. crispifolia L. H. Bailey) has been reported to have psychological properties such as anti-depressant activities. However, studies on chronic stress and depression caused by restraint have not been conducted. Therefore, this study aimed to evaluate the effects of a mustard leaf (ML) extract on chronic restraint stress (CRS) in mice. Male mice were subjected to a CRS protocol for a period of four weeks to induce stress. The results showed that the ML extract (100 and 500 mg/kg/perorally administered for four weeks) significantly decreased corticosterone levels and increased neurotransmitters levels in stressed mice. Apoptosis by CRS exposure was induced by Bcl-2 and Bax expression regulation and was suppressed by reducing caspase-3 and poly (ADP-ribose) polymerase expression after treatment with the ML extract. Our results confirmed that apoptosis was regulated by increased expression of brain-derived neurotrophic factor (BDNF). Additionally, cytokine levels were regulated by the ML extract. In conclusion, our results showed that the ML extract relieved stress effects by regulating hormones and neurotransmitters in CRS mice, BDNF expression, and apoptosis in the brain. Thus, it can be suggested that the studied ML extract is an agonist that can help relieve stress and depression.


2021 ◽  
Author(s):  
Hai-long Yang ◽  
Meng-Meng Li ◽  
Man-Fei Zhou ◽  
Huai-Sha Xu ◽  
Fei Huan ◽  
...  

Abstract Accumulating evidence has shown that inflammation, the gut microbiota and neurotransmitters are closely associated with the pathophysiology of depression. However, the links between the gut microbiota and neurotransmitter metabolism remain poorly understood. The present study aimed to investigate the neuroinflammatory reactions in chronic restraint stress (CRS)-induced depression and to delineate the potential links between the gut microbiota and neurotransmitter metabolism. C57BL/6 mice were subjected to chronic restraint stress for 5 weeks, followed by behavioural tests (the sucrose preference test, forced swim test, open field test and elevated plus maze) and analysis. The results showed that CRS significantly increased IL-1β, IL-2, IL-6 and TNFα levels and decreased BDNF expression, accompanied by the activation of IκBα-p-NF-κB signalling in the mouse hippocampus. In addition, the neurotransmitter metabolomics results showed that CRS resulted in decreased levels of plasma 5-HT, DA, and NE and their corresponding metabolites, and gut microbiota fecal metabolites with the 16S rRNA gene sequencing indicated that CRS caused marked microbiota dysbiosis in mice, with a significant increase in Helicobacter, Lactobacillus, and Oscillibacter and a decrease in Parabacteroides, Ruminococcus, and Prevotella. Notably, CRS-induced depressive behaviours and the disturbance of neurotransmitter metabolism and microbiota dysbiosis can be substantially restored by dexamethasone (DXMS) administration. Furthermore, a Pearson heatmap focusing on correlations between the microbiota, behaviours and neurotransmitters showed that Helicobacter, Lactobacillus, and Oscillibacter were positively correlated with depressive behaviours but were negatively correlated with neurotransmitter metabolism, and Parabacteroides and Ruminococcus were negatively correlated with depressive behaviours but were positively correlated with neurotransmitter metabolism. Taken together, the results suggest that inflammation is involved in microbiota dysbiosis and the disturbance of neurotransmitter metabolism in CRS-induced depressive changes, and the delineation of the potential links between the microbiota and neurotransmitter metabolism will provide novel strategies for depression treatment.


Author(s):  
Gonzalo García-Rojo ◽  
Cristóbal Fresno ◽  
Natalia Vilches ◽  
Gabriela Díaz-Véliz ◽  
Sergio Mora ◽  
...  

2017 ◽  
Vol 18 (1) ◽  
Author(s):  
Mi Kyoung Seo ◽  
Cheol Min Choi ◽  
Roger S. McIntyre ◽  
Hye Yeon Cho ◽  
Chan Hong Lee ◽  
...  

2004 ◽  
Vol 101 (7) ◽  
pp. 2179-2184 ◽  
Author(s):  
Lawrence P. Reagan ◽  
Daniel R. Rosell ◽  
Gwendolyn E. Wood ◽  
Michael Spedding ◽  
Carmen Muñoz ◽  
...  

2008 ◽  
Vol 17 (3) ◽  
pp. 363-372 ◽  
Author(s):  
Lee Hee Hyuk ◽  
Chang-Ju Kim ◽  
Jin hwan Yoon ◽  
김성은 ◽  
JongOh Kim ◽  
...  

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