Behavioral and cortisol analysis of the anti-stress effect of Polygonum minus (Huds) extracts in chronic unpredictable stress (CUS) zebrafish model

The World Health Organization (WHO) recorded approximately 350 million people worldwide have suffered from mental health disorders, such as depression, anxiety, schizophrenia, and addictive behaviors. The search for new drugs from nature has drawn on many biological resources and human practices. In...

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Published in:	Comparative biochemistry and physiology. Toxicology & pharmacology Vol. 256; p. 109303
Main Authors:	Abdul Rahim, Nurhidayah, Nordin, Nurfatihah, Ahmad Rasedi, Nur Izzatun Shahira, Mohd Kauli, Farah Syazwani, Wan Ibrahim, Wan Norhamidah, Zakaria, Fauziahanim
Format:	Journal Article
Language:	English
Published:	United States Elsevier Inc 01-06-2022
Subjects:	Animals Behavior Behavior, Animal Cortisol Disease Models, Animal Fluoxetine - pharmacology Fluoxetine - therapeutic use Humans Hydrocortisone Plant Extracts - pharmacology Plant Extracts - therapeutic use Polygonum Polygonum minus Stress Stress, Psychological - drug therapy Zebrafish Polygonum minus Zebrafish Cortisol Behavior Stress
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Summary:	The World Health Organization (WHO) recorded approximately 350 million people worldwide have suffered from mental health disorders, such as depression, anxiety, schizophrenia, and addictive behaviors. The search for new drugs from nature has drawn on many biological resources and human practices. In this study, leaves of Polygonum minus standardized extract (Biokesum®), 1 and 100 mg/L were used to evaluate the anti-stress effect in the chronic unpredictable stress (CUS) zebrafish model. Five groups of zebrafish were manipulated in this study, comprising control, chronic unpredictable stress (CUS), CUS + Biokesum® 1 mg/L (4 days, 20 min/day, immersion) CUS + Biokesum® 100 mg/L (4 days, 20 min/day, immersion) and CUS + fluoxetine 0.6 mg/L (4 days, 20 min/day, immersion). Four different behavioral tests were used, i.e. open-field test, social interaction test, light and dark test, and exploratory test. After four consecutive days of treatment, the zebrafish were sacrificed for whole-body cortisol analysis. The exploratory test showed a significant change upon P. minus treatment (one-way ANOVA; p = 0.0011). Cortisol analysis showed a decrease of cortisol level after treatment with the extract and fluoxetine, without significant difference. These results showed that zebrafish is a reliable model to study the anti-stress effect of compounds or herbal extract. [Display omitted] •We investigated the anti-stress effect of Polygonum minus standardized extract (Biokesum®), 1 and 100 mg/L in the chronic unpredictable stress (CUS) zebrafish model.•Exploratory behaviour significantly increase after high concentration Biokesum treatment•Contact duration significantly increase after fluoxetine treatment•Cortisol levels significantly increased in zebrafish even after four days of CUS ended.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1532-0456 1878-1659
DOI:	10.1016/j.cbpc.2022.109303