Arachidonyl trifluoromethyl ketone (ATK) is an analog of arachidonic acid.

[1] that inhibits some isoforms of the enzyme phospholipase A2.

[2] Specifically it inhibits the 85 kDa cystolic PLA2 (cPLA2).

[2] It has been studied as a neuroprotective agent after spinal cord injury,[2][3] and in animal models of multiple sclerosis.

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