Effect of betahistine on pro-inflammatory cytokine expression in autoimmune inner ear disease and Meniere's disease patients.

Objective: Betahistine is a partial H1 receptor agonist and a potent H3 receptor antagonist commonly used for the treatment of MD and peripheral vertigo. The aim of this study was to investigate the impact of betahistine on the salt induced cytokine expression profiles of AIED and MD patients.

Methods: Peripheral blood mononuclear cells (PBMCs) were obtained from 24 patients with autoimmune inner ear disease (AIED) or Meniere's disease (MD) during an acute exacerbation of hearing loss.

Positional Vertigo.

Positional vertigo is a complex symptom that may arise from several disorders. In this chapter, we define positional vertigo and provide a comprehensive review of the disorders in the differential diagnosis, including benign paroxysmal positional vertigo, central paroxysmal positional vertigo, cervical vertigo and vertebrobasilar insufficiency, and persistent postural perceptual dizziness.