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Nutrients 2016, 8(5), 260; doi:10.3390/nu8050260

Effects of Lactobacillus plantarum TWK10-Fermented Soymilk on Deoxycorticosterone Acetate-Salt-Induced Hypertension and Associated Dementia in Rats

1
Department of Food Science, Fu Jen Catholic University, New Taipei City 24205, Taiwan
2
Shenzhen Key Lab for Food Biological Safety Control, Food Safety and Technology Research Center, Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518000, China
*
Author to whom correspondence should be addressed.
Received: 5 February 2016 / Revised: 25 April 2016 / Accepted: 26 April 2016 / Published: 2 May 2016
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Abstract

Oxidative stress resulting from excessive production of reactive oxygen species is the major mediator of neuronal cell degeneration observed in neurodegenerative diseases, such as Alzheimer’s disease (AD) and vascular dementia (VaD). Additionally, hypertension has been shown to be a positive risk factor for VaD. Therefore, the objective of this study was to investigate the effects of Lactobacillus plantarum strain TWK10 (TWK10)-fermented soymilk on the protection of PC-12 cells in H2O2-, oxygen-glucose deprivation (OGD)- and deoxycorticosterone acetate (DOCA)-salt-induced rat models of VaD. Notably, the viabilities of H2O2-treated PC-12 cells and OGD model were significantly increased by treatment with TWK10-fermented soymilk ethanol extract (p < 0.05). In addition, oral administration of TWK10-fermented soymilk extract in DOCA-salt hypertension-induced VaD rats resulted in a significant decrease in blood pressure (p < 0.05), which was regulated by inhibiting ACE activity and promoting NO production, in addition to decreased escape latency and increased target crossing (p < 0.05). In conclusion, these results demonstrated that TWK10-fermented soymilk extract could improve learning and memory in DOCA-salt hypertension-induced VaD rats by acting as a blood pressure-lowering and neuroprotective agent. View Full-Text
Keywords: hypertension; fermented soymilk; reactive oxygen species; neuronal cell degeneration; dementia hypertension; fermented soymilk; reactive oxygen species; neuronal cell degeneration; dementia
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Liu, T.-H.; Chiou, J.; Tsai, T.-Y. Effects of Lactobacillus plantarum TWK10-Fermented Soymilk on Deoxycorticosterone Acetate-Salt-Induced Hypertension and Associated Dementia in Rats. Nutrients 2016, 8, 260.

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