A new study suggests that an imbalance in the brain microbiome may predispose people to neurodegenerative diseases. Cases of reversible dementia have sparked interest in this idea, challenging the previous belief that the brain is devoid of microbes.
IT SEEMED like a classic case of Alzheimer’s disease. For three years, a man in his 70s had experienced serious cognitive decline: he frequently forgot the names of family members and was no longer able to drive or leave home by himself. Further deterioration seemed inevitable. But then his doctors checked. When they put him on a course of antifungal medication, the results were startling. Within two years, he had regained his driving licence and returned to work as a gardener..
But cases of “reversible dementia” are starting to inspire enormous interest in the idea that our brains are teeming with microorganisms – and that an imbalance in this “brain microbiome” may predispose people to neurodegenerative disease.Until recently, the brain was thought to be devoid of microbes, not least because of the blood-brain barrier, a specialised membrane that keeps pathogens and toxins in the blood out of the brain. So the idea of a brain microbiome was controversial. However, a new study seems to clinch the case.stored in four brain banks in the UK and U
Reversible Dementia Brain Microbiome Neurodegenerative Diseases Microbes Blood-Brain Barrier
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