Plasma granzyme K

1. Coffee is associated with plasma granzyme K in humans.

   “coffee intake (an A2aR antagonist) inversely correlates with plasma Gzmk levels.”

   Humansplasma

   A feed-forward loop between niche adenosine and Gzmk⁺ CD8 T cells propagates systemic inflammaging

   bioRxiv (Cold Spring Harbor Laboratory)·20 Mar 2026Preprint

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