Potassium 2-(1-hydroxypentyl)-benzoate improves depressive-like behaviors in rat model.
10.1016/j.apsb.2018.08.004
- Author:
Hao MA
1
;
Weiping WANG
1
;
Shaofeng XU
1
;
Ling WANG
1
;
Xiaoliang WANG
1
Author Information
1. State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China.
- Publication Type:Journal Article
- Keywords:
5-HT;
Antidepressant;
BDNF;
CUMS;
HPA axis;
PHPB
- From:
Acta Pharmaceutica Sinica B
2018;8(6):881-888
- CountryChina
- Language:English
-
Abstract:
Potassium 2-(1-hydroxypentyl)-benzoate (PHPB) is a novel drug candidate for acute ischemic stroke. PHPB has been also shown to be beneficial for some neurodegenerative diseases. In this study, we demonstrated that PHPB improved depressive-like behaviors induced by chronic unpredictable mild stress (CUMS) in rats. Male SD rats were subjected to the stress for five weeks. PHPB (30 and 100 mg/kg) or fluoxetine (FLX 10 mg/kg, as positive control) was administered orally from the third week in CUMS procedure. The behavioral tests were applied and then the biochemical studies were carried out. PHPB or FLX treatment rescued the behavioral deficiency in CUMS-exposed rats. Meanwhile, PHPB normalized the enhanced level of serum corticosterone, improved hippocampal and serum BDNF levels, as well as p-CREB level in hippocampus. In addition, PHPB could reverse the reduced level of extracellular 5-HT and its metabolite 5-HIAA in prefrontal cortex (PFC) of depressed rats. In summary, our results showed that PHPB improved depression-like behaviors in CUMS-exposed rats. The mechanisms might relate to the reverse of neurotrophic disturbance in the brain, reducing excessive HPA axis response and facilitating the release of 5-HT.
