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Auris Medical Highlights Publication of Study Results Demonstrating Betahistine’s Antiepileptogenic and Anticonvulsant Activity in Murine Model
The article was written by an independent Iranian research group and presents the outcomes of a study on the effects of betahistine on seizure scores, memory deficits, depression, and neuronal loss in a murine model of epilepsy. Seizure was induced by treatment with pentylenetetrazole (PTZ), a common protocol in epilepsy studies. The researchers found that pretreatment and repetitive treatment with intraperitoneal betahistine entirely prevented generalized tonic-clonic seizures induction and significantly diminished seizure intensity. Further, it decreased cell death in the hippocampus and cortex, suggesting a neuroprotective effect of betahistine, and ameliorated the memory deficit and depression induced by PTZ in the kindled animals.
“The exciting outcomes from this study supplement results from earlier studies which showed that an increase in central histamine level suppresses convulsion activity and provides neuroprotection,” commented
About Betahistine
Betahistine is a small molecule structural analog of histamine, which acts as an agonist at the H1 and as an antagonist at the H3 histamine receptors. Unlike histamine, it crosses the blood-brain-barrier. It is known to enhance inner ear and cerebral blood flow, increase histamine turnover and enhance histamine release in the brain, increase release of acetylcholine, dopamine and norepinephrine in the brain and to result in general brain arousal. Betahistine for oral administration is approved in about 115 countries, with the US being a notable exception, for the treatment of vertigo and Meniere’s disease. The compound has a very good safety profile, yet it is also known that its clinical utility is held back by poor bioavailability. Intranasal administration of betahistine has been shown to result in 5 to 29 times higher bioavailability.
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1 Yazdi A et al. (2020), Betahistine prevents kindling, ameliorates the behavioral comorbidities and neurodegeneration induced by pentylenetetrazole, Epilepsy Behav 105: 106956.
Source: Auris Medical AG