What peptide isolated by Sérgio Henrique Ferreira led to the development of ACE inhibitors for hypertension?

Answer

Bradykinin-potentiating peptide (BPP)

Sérgio Henrique Ferreira, a Brazilian scientist, achieved a major medical breakthrough in 1965 by isolating the bradykinin-potentiating peptide (BPP) directly from the venom of *B. jararaca*. This peptide exhibited a significant capability to reduce blood pressure in test subjects. This foundational discovery provided the specific biochemical target that directly inspired and paved the way for the subsequent creation and global implementation of Angiotensin Converting Enzyme (ACE) inhibitors, a class of drugs exemplified by captopril, which fundamentally changed the treatment landscape for hypertension and certain forms of congestive heart failure.

What peptide isolated by Sérgio Henrique Ferreira led to the development of ACE inhibitors for hypertension?
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