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Abstract Title:

Sodium butyrate exerts protective effect against Parkinson's disease in mice via stimulation of glucagon like peptide-1.

Abstract Source:

J Neurol Sci. 2017 Oct 15 ;381:176-181. Epub 2017 Aug 24. PMID: 28991675

Abstract Author(s):

Jiaming Liu, Fangyan Wang, Suzhi Liu, Jimei Du, Xuezhen Hu, Jiaojiao Xiong, Renchi Fang, Wenqian Chen, Jing Sun

Article Affiliation:

Jiaming Liu

Abstract:

Sodium butyrate (NaB) has exhibited protective activity in neurological disorders. Here, we investigated the neuroprotective effect and potential mechanisms of NaB in a mouse model of Parkinson's disease (PD). A mouse was intraperitoneally treated with MPTP (30mg/kg) for 7 consecutive days to induce PD model and NaB (200mg/kg) was intragastrically treated for 3weeks. The behavioral tests were then conducted. Dopaminergic degeneration was evaluated by western blot and immunohistochemistry of tyrosine hydroxylase (TH) in the SN. Brain damage was assessed by histologic (Nissl staining for cell death), apoptosis-associated protein and tight junction (TJ) proteins studies. Meanwhile, the levels of colonic glucagon-like peptide-1 (GLP-1) and cerebral GLP-1 receptor (GLP-1R) expression were assessed. Our results showed that NaB improved neurobehavioral impairment including cognitive behavior and coordination performance. Moreover, NaB treatment prevented the MPTP-induced dopaminergic degeneration and decreased expression level of TH in the striatum. NaB treatment attenuated the PD-associated disruption of BBB by upregulation of Occludin and zonula occludens (ZO)-1. In addition, NaB resulted in increased level of Bcl-2 and decreased level of Bax. Particularly, NaB-treated mice with PD exhibited increased colonic GLP-1 level as well as upregulation of brain GLP-1R expression compared with PD group. Our findings suggest that NaB has potential as a novel therapeutic for treatment of PD, and its mechanism was associated with stimulating colonic GLP-1secretion.

Study Type : Animal Study

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