J Korean Med Sci.  1998 Oct;13(5):525-528. 10.3346/jkms.1998.13.5.525.

Effects of Ginkgo biloba extract on the cochlear damage induced by local gentamicin installation in guinea pigs

Affiliations
  • 1Department of Otorhinolaryngology - Head & Neck Surgery, Seoul National University College of Medicine, Korea.

Abstract

Investigations evaluating the protective effect of Ginkgo biloba extract (EGb) on gentamicin (GM) ototoxicity were undertaken. Guinea pigs treated with 5 mg/kg gentamicin sulfate on the round window niche (RWN) showed acute changes on electrocochleogram and hair cell or microvilli damage on scanning electron microscopy (SEM). There was accumulation of GM in the whole cochlea, especially in the organ of Corti, stria vascularis, and type III fibrocyte on immunohistochemical study. However, the guinea pigs pretreated with local or systemic EGb revealed no significant changes by local GM installation. From these results, we concluded that EGb has a protective effect on the development of GM ototoxicity in the cochlea.


MeSH Terms

Animal
Audiometry, Evoked Response
Cochlea/ultrastructure
Cochlea/injuries*
Gentamicins/immunology
Gentamicins/adverse effects*
Ginkgo biloba/therapeutic use*
Guinea Pigs
Microscopy, Electron, Scanning
Plant Extracts
Staining and Labeling

Cited by  1 articles

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Mukesh Kumar Yadav, June Choi, Jae-Jun Song
Clin Exp Otorhinolaryngol. 2014;7(1):13-18.    doi: 10.3342/ceo.2014.7.1.13.

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