🔬 Discovery

Bradykinin

Bradicinina

Date
1948-1949 · confidence high
Place
Biological Institute, São Paulo, Brazil
Credited to
Maurício Rocha e Silva, Wilson Beraldo and Gastão Rosenfeld
Field
Life & health

What was discovered

A peptide released from plasma by snake venom or trypsin that dilates vessels and lowers blood pressure slowly (hence 'brady-kinin', slow movement). It opened the study of kinins and their role in inflammation and vascular regulation.

The finding was made in late 1948 with Bothrops jararaca venom and published in 1949 in the American Journal of Physiology.

What it led to

  • Study of kinins in inflammation and pain
  • ACE-inhibitor drugs such as captopril (1975-1981)
  • Pharmacology of snake venoms
🕸️ View in the graph

Made possible

Links

Sources✓ verified 2026-11-04