The Cardiovascular Effect of Systemic Homocysteine Is Associated with Oxidative Stress in the Rostral Ventrolateral Medulla

Autor: Mei-Fang Zhong, Yu-Hong Zhao, Hua Xu, Xing Tan, Yang-Kai Wang, Wei-Zhong Wang
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Neural Plasticity, Vol 2017 (2017)
Druh dokumentu: article
ISSN: 2090-5904
1687-5443
DOI: 10.1155/2017/3256325
Popis: It has been demonstrated that homocysteine (HCY) is a significant risk factor of hypertension, which is characterized by overactivity of sympathetic tone. Excessive oxidative stress in the rostral ventrolateral medulla (RVLM), a key region for control of sympathetic outflow, contributes to sympathetic hyperactivity in hypertension. Therefore, the goal of the present study is to determine the effect of systemic HCY on production of reactive oxygen species (ROS) in the RVLM. In the rat model of the diet-induced hyperhomocysteinemia (L-methionine, 1 g/kg/day, 8 weeks), we found that the HCY resulted in a significant increase (≈3.7-fold, P
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