“Enzymatic Lysis in Vitro of Hyalin Deposits in Human Kidney”, 1972-05 (; similar):
Vascular hyalin was readily dissolved in vitro from sections of the formalin-preserved, paraffin-embedded kidney of a hypertensive patient, by means of an enzyme (BJ-B-66) isolated from Bac. cereus. The enzyme attacked other hyalins and tissue components as well.
The enzyme is active at body temperature and pH, and appears substantially nontoxic to rats and hamsters.