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Experts dispute Cochrane review on anti-amyloid Alzheimer’s drugs

A new Cochrane review said anti-amyloid Alzheimer’s drugs show no clinically meaningful benefit, but many researchers said the analysis has major limitations. Newer evidence on lecanemab and donanemab and broader drug development efforts continue to shape the field.

APOE4 Gene Targeted in Multiple Alzheimer's Treatment Approaches

Multiple therapeutic approaches targeting the APOE4 gene are advancing, including small molecule drugs, gene therapies, and repurposed medications. The APOE4 variant confers a 60% lifetime Alzheimer's risk and affects brain metabolism, increasing seizure susceptibility. Research shows blood pressure drug terazosin can reduce seizures in APOE4 models by boosting cellular energy production.

Vitamin D Shows Mixed Results for Brain Health and COVID Recovery in New Studies

A 16-year study links higher vitamin D levels in middle age to lower tau protein deposits in the brain, while a major COVID-19 trial finds vitamin D doesn't reduce acute severity but may help with long COVID recovery. Separate research shows supplementation improves vitamin D levels and stabilizes immune profiles in athletes and non-athletes.

NICE to Review Alzheimer's Drug Guidance After Appeals Upheld

NICE has upheld appeals to review its guidance on Alzheimer's drugs lecanemab and donanemab, sending the decision back to committee. The manufacturers argued NICE failed to account for the treatments' wider impact on unpaid carers. This comes amid broader challenges in neurodegenerative disease research following recent high-profile clinical trial failures.

Advanced CTE Strongly Linked to Dementia in Major Brain Study

A Boston University study of 614 brains found that advanced chronic traumatic encephalopathy (CTE) from repeated head impacts significantly increases dementia risk, with stage IV CTE making individuals 4.5 times more likely to have dementia.