A long-term observational study on autoimmune pulmonary alveolar proteinosis revealed a sustained and generalized decrease in serum autoantibody levels.

Orphanet J Rare Dis · 2026 · PMC13159374 · PMID 41808122

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a notable trendno p-value reported

Furthermore, we longitudinally measured serum anti–GM-CSF IgG autoantibody (αGM) levels and observed a notable trend toward a gradual decline in antibody levels over time.

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