[Seasonal fluctuations in the kallikrein-kinin system indices].

State of kallikrein-kinine system was studied in 100 persons of young and mature age during various seasons of year. Season variations in content of kininogen, kallikreinogen as well as in BAEE-esterase activity of blood serum were observed in young persons. In mature persons the season variations of antitryptic and kininase activities were also observed in blood serum. The kinine system of young persons was apparently less subjected to season variations as compared with the persons of mature age.