The effects of the Chinese herbal medicine EMF01 on salicylate-induced tinnitus in rats

Autor: Xuan-xuan Zhu, Ming Zhang, Yiwen Zheng, Shweta Vagal, Paul F. Smith, Cynthia L. Darlington, Guangji Wang, Catherine de Waele
Rok vydání: 2010
Předmět:
Zdroj: Journal of Ethnopharmacology. 128:545-548
ISSN: 0378-8741
Popis: Aim of the study Traditional Chinese medicine (TCM) has been reported to successfully alleviate tinnitus, although well-controlled studies have not been conducted. In this study, we attempted to test a TCM, Er Ming Fang (EMF01) containing Rehmannia glutinosa , Cornus officinalis , Salvia mittiorrhiza , Pueraria , Schisandra chinensis , Poria cocos and Platycodon grandiflorum , on salicylate-induced tinnitus in rats, using a conditioned lick suppression paradigm. Materials and methods A pilot study examined the effect of 8.75 g/kg and 17.5 g/kg EMF01 (delivered by oral gavage for 20 days) and showed a slight decrease in the suppression ratio (SR) in the 8.75 g/kg group. In order to confirm the possible effect of EMF01 on tinnitus at 8.75 g/kg, a further study was carried out with a larger sample size. Results While there were statistically significant differences between the treatment groups, post hoc tests revealed that EMF01 did not have any significant effect on salicylate-induced tinnitus. Conclusions While this study does not support the efficacy of EMF01 in the treatment of salicylate-induced tinnitus, further studies should be conducted to determine if it alleviates tinnitus associated with acoustic trauma.
Databáze: OpenAIRE