An immune signature of postoperative cognitive decline in elderly patients
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View abstract on PubMed
Summary
This summary is machine-generated.Predicting postoperative cognitive decline (POCD) in elderly patients is crucial. This study identified immune cell signaling patterns and plasma proteins that accurately predict POCD after surgery.
Area Of Science
- Immunology
- Geriatric Medicine
- Computational Biology
Background
- Postoperative cognitive decline (POCD) is a common complication in elderly patients after major surgery, posing significant challenges for prediction and prevention.
- Understanding the underlying biological mechanisms of POCD is vital for developing effective diagnostic and therapeutic strategies.
- Peripheral immune cell responses to surgical trauma play a role in POCD pathogenesis.
Approach
- A longitudinal study analyzed single-cell mass cytometry data from 26 elderly orthopedic surgery patients.
- Trajectory analyses identified specific immune signaling pathways (JAK/STAT, MyD88) altered in patients who developed POCD.
- Integrated single-cell, plasma proteomic, and clinical data to build a predictive model for POCD.
Key Points
- Early exacerbation of JAK/STAT signaling and diminished MyD88 signaling were observed post-surgery in patients developing POCD.
- A predictive model integrating immune cell features and plasma proteins accurately identified patients at risk for POCD (AUC = 0.80).
- A concise immune signature comprising one plasma protein and ten immune cell features was identified.
Conclusions
- Peripheral immune cell responses significantly impact the development of POCD in elderly surgical patients.
- The identified POCD immune signature offers potential biomarker candidates for point-of-care prognostic tests.
- Personalized perioperative management strategies can be advanced by identifying at-risk patients through these biomarkers.
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