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A team of scientists is proposing a new explanation for some cases of long COVID, based on their findings that serotonin levels were lower in people with the complex condition. In their study, published Monday in the journal Cell, researchers at the University of Pennsylvania suggest that serotonin reduction is triggered by remnants of the virus lingering in the gut. Depleted serotonin could especially explain memory problems and some neurological and cognitive symptoms of long COVID, they say.

The Michael J. Fox Foundation for Parkinson's Research (MJFF), confirms the most significant breakthrough yet in the search for a Parkinson's biomarker: a biological test for Parkinson's disease that demonstrates high diagnostic accuracy, differentiates molecular subtypes and detects disease in individuals before cardinal movement symptoms arise. The new test, known as the alpha-synuclein seed amplification assay (?Syn-SAA), heralds the revolutionary ability for research to define Parkinson's disease biologically, offering a critical tool for clinical trial design and assessmen...

New paper in The Lancet Neurology confirms that a key Parkinson's pathology can now be identified by examining spinal fluid from living patients Test validated...

New paper in The Lancet Neurology confirms that a key Parkinson's pathology can now be identified by examining spinal fluid from living patientsTest validated in the gold-standard Parkinson's

New paper in The Lancet Neurology confirms that a key Parkinson's pathology can now be identified by examining spinal fluid from living patients Test validated...