scholarly journals Mustard Leaf Extract Suppresses Psychological Stress in Chronic Restraint Stress-Subjected Mice by Regulation of Stress Hormone, Neurotransmitters, and Apoptosis

Nutrients ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3640
Author(s):  
Kyung-A. Hwang ◽  
Hye-Jeong Hwang ◽  
Yu Jin Hwang ◽  
Young Jun Kim
Keyword(s):  
Restraint Stress ◽  
Leaf Extract ◽  
Caspase 3 ◽  
Chronic Restraint Stress ◽  
Stress Hormone ◽  
Induce Stress ◽  
Bdnf Expression ◽  
Stress Effects ◽  
Cytokine Levels ◽  
The Brain

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.

scholarly journals Protective Effects of Carvacrol against Oxidative Stress Induced by Chronic Stress in Rat’s Brain, Liver, and Kidney

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Saeed Samarghandian ◽  
Tahereh Farkhondeh ◽  
Fariborz Samini ◽  
Abasalt Borji
Keyword(s):  
Oxidative Stress ◽  
Restraint Stress ◽  
Reduced Glutathione ◽  
Control Group ◽  
Protective Effects ◽  
Chronic Restraint Stress ◽  
Oxidative Stress Parameters ◽  
Liver And Kidney ◽  
Stress Damage ◽  
The Brain

Restraint stress may be associated with elevated free radicals, and thus, chronic exposure to oxidative stress may cause tissue damage. Several studies have reported that carvacrol (CAR) has a protective effect against oxidative stress. The present study was designed to investigate the protective effects of CAR on restraint stress induced oxidative stress damage in the brain, liver, and kidney. For chronic restraint stress, rats were kept in the restrainers for 6 h every day, for 21 consecutive days. The animals received systemic administrations of CAR daily for 21 days. To evaluate the changes of the oxidative stress parameters following restraint stress, the levels of malondialdehyde (MDA), reduced glutathione (GSH), superoxide dismutase (SOD), glutathione peroxidase (GPx), glutathione reductase (GR), and catalase (CAT) activities were measured in the brain, liver, and kidney. In the stressed animals that received vehicle, the MDA level was significantly higher (P<0.001) and the levels of GSH and antioxidant enzymes were significantly lower than the nonstressed animals (P<0.001). CAR ameliorated the changes in the stressed animals as compared with the control group (P<0.001). This study indicates that CAR can prevent restraint stress induced oxidative damage.

Changes of the brain activities after chronic restraint stress in rats: A study based on 18F-FDG PET

2018 ◽  
Vol 665 ◽  
pp. 104-109 ◽  
Author(s):  
Kai Wei ◽  
Weiqi Bao ◽  
Zhengxiao Zhao ◽  
Weiyan Zhou ◽  
Jiaqi Liu ◽  
...  
Keyword(s):  
Fdg Pet ◽  
Restraint Stress ◽  
Chronic Restraint Stress ◽  
18F Fdg ◽  
The Brain

Protective Effects of Crocetin on Depression-like Behavior Induced by Immobilization in Rat

2018 ◽  
Vol 17 (5) ◽  
pp. 361-369 ◽  
Author(s):  
Tahereh Farkhondeh ◽  
Saeed Samarghandian ◽  
Fariborz Samini ◽  
Ali Rajabpour Sanati
Keyword(s):  
Antioxidant Enzymes ◽  
Oxidative Damage ◽  
Chronic Stress ◽  
Neurodegenerative Disorders ◽  
Restraint Stress ◽  
Protective Effects ◽  
Chronic Restraint Stress ◽  
Stress Group ◽  
Immobility Time ◽  
The Brain

Background & Objective: Crocetin, an active ingredient of saffron, has been recognized as a potent antioxidant. Plant extracts or their components may be useful in ameliorating the various diseases, including neurodegenerative disorders. This study investigated the effects of crocetin on oxidative damage induced by chronic restraint stress in the rat brain. For this reason, rats were kept in the restrainers for 1 hour every day, for 21 consecutive days. The animals were injected crocetin (20, 40, 60 mg/kg) or vehicle daily for 21 days. Findings showed that the immobility time significantly increased in the rodents subjected to the chronic stress compared with the normal group. However, the number of crossing beams in the rats submitted to the chronic stress significantly decreased versus the non-stress rats. Treatment with crocetin ameliorated the immobility time and the number of crossing in the chronic restraint stress rats versus the non-treated stress group. Crocetin also reverted the levels of MDA and GSH and also the activities of antioxidant enzymes to the normal levels in the stress groups. Conclusion: The present study suggests that crocetin may be useful for the management of depressantlike effects induced by chronic stress through decreasing oxidative damage in the brain.

scholarly journals Links between gut dysbiosis and neurotransmitter disturbance in chronic restraint stress-induced depressive behaviours: the role of inflammation

2021 ◽  
Author(s):  
Hai-long Yang ◽  
Meng-Meng Li ◽  
Man-Fei Zhou ◽  
Huai-Sha Xu ◽  
Fei Huan ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Restraint Stress ◽  
Forced Swim Test ◽  
Preference Test ◽  
16S Rrna Gene Sequencing ◽  
Rrna Gene ◽  
Chronic Restraint Stress ◽  
Bdnf Expression ◽  
Behavioural Tests ◽  
Neurotransmitter Metabolism

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.

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