US Patent 7183375 Inhibitors for continuous activation for calcineurin

The object of the present invention is to provide a suppressant for neuronal cell death effective for various diseases which inhibits a constitutive active forming of calcineurin and has less side effect. An inhibitor of constitutive active forming of calcineurin, more specifically a drug which inhibits cleavage of calcineurin subunit A (CaNA) by calpain. Examples thereof include peptides having the amino acid sequence of FDGATAAARKEVIRNK (SEQ No. 1) and REESESVLTLKGLTPTG (SEQ No. 2).