Abstract
The present study investigated the effect of quinazolinealkylthio derivative(QAD) on cervical vertigo in the rat model and explored the underlying mechanism. Treatment of the cervical vertigo rats with QAD led to a significant (P<0.05) improvement in balance beam score compared to the model group. Cervical vertigo-mediated reduction in CGRP level in rat plasma samples was effectively inhibited on treatment with QAD. Treatment with QAD led to a significant (P<0.05) reduction in cervical vertigo-induced increase in ET-1 and NE levels in rats. An increase in NO production by cervical vertigo induction showed a significant (P<0.05) decrease in rats by QAD treatment. The QAD treatment of the rats significantly (P<0.05) inhibited cervical vertigo-induced increase in radiographic score on day 56. The radiographic score in cervical vertigo rats was decreased to 0.42 on treatment with QAD compared to 8.2 in the model group. Therefore, QAD treatment of the cervical vertigo rats improves behavioral score and inhibits radiographic score. It upregulates CGRP expression and suppresses ET-1, NE and NO levels in a rat model of cervical vertigo. Thus, QAD can be used for the treatment of cervical vertigo however, further investigations are required to study the mechanism in detail.
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