Systemic Inflammation: The Cytokine Latch and the Break Window

A systemic inflammatory response couples responders through shared cytokine tone. Past a critical insult the population self-sustains after the trigger is removed, the cytokine feed-forward holding itself ON, so removing the trigger is insufficient and the latch must be actively broken within a time-critical window. With coupling off the system cannot latch. DIRECTION/CLASS only, not medical advice. Grade [V].

A systemic inflammatory response couples many responders through a shared cytokine tone, and past a critical insult near the single-cell threshold the population self-sustains after the external trigger is removed — the cytokine feed-forward holds itself ON, the cytokine-storm latch. Removing the trigger is therefore insufficient: the latch must be actively broken, and the break is time-critical, an intervention window monotone in delay. The honest control switches the coupling off, and the same insult sweep stays flat; measured dynamics [V], absolute scale [O].

Systemic inflammation: the cytokine latch and the break window

A systemic inflammatory response couples many responders through a shared cytokine tone. Past a critical insult (measured 1.076× the spinodal, near the single-cell threshold) the population SELF-SUSTAINS after the external trigger is REMOVED — the cytokine feed-forward holds itself ON (supra-threshold occupancy 100% versus sub-threshold 0% after the trigger is withdrawn) — the cytokine-storm latch. Removing the trigger alone is therefore insufficient; the latch must be actively broken. And the break is TIME-CRITICAL: an early counter-pulse breaks the latch, but the same pulse applied too late fails, a measured intervention window monotone in delay. The control is explicit: with the cytokine coupling switched off the system cannot latch and the same insult sweep stays flat (occupancy range 0% versus 100% with coupling on).

Part of the disease/treatment axis: a pathological immune state is a latched basin, and the durable class of intervention moves the system across the saddle-node rather than only holding the drive down, which relapses on withdrawal.