To critique the interpretation of negative studies regarding the link between infections and Alzheimer's disease.
Key Findings:
Negative findings in studies may reflect limitations in study design or exposure measurement rather than a lack of association.
Widespread exposure to pathogens like HSV-1 complicates comparisons between cases and controls.
Dysregulated host immunity may connect various pathogens to Alzheimer's pathology, but this area requires further investigation.
Interpretation:
The perspective emphasizes the need for caution in interpreting negative findings and suggests that the infectious hypothesis may need a more nuanced approach.
Limitations:
No unifying mechanistic explanation exists for the link between various pathogens and Alzheimer's-related pathology.
Current studies may not adequately account for genetic susceptibility and the distinction between central and peripheral infections.
Conclusion:
The authors call for more precise study designs to better understand the potential infectious contributions to Alzheimer's disease.
Invited narrative review supports early, interprofessional rehabilitation across the ICU recovery continuum while emphasizing heterogeneous evidence and inconsistent implementation worldwide.
