Inhaled Particulate Accumulation with Age Impairs Immune Function and Architecture in Human Lung Lymph Nodes

In an analysis of human lymph nodes (LNs) from 84 organ donors aged 11–93 years, scientists found a specific age-related decline in lung-associated, but not gut-associated, LN immune function linked to the accumulation of inhaled atmospheric particulate matter.
[Nature Medicine]
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