[Medico-social and clinico-biochemical aspects of longevity in Siberia]

Over 90-year old inhabitants of districts of Novosibirsk were questioned in connection with sociological studies about their living habits. The authors consider the genetically determined system of monooxygenases for the elimination of foreign bodies (xenobiotics) to be important, but they are also involved in the synthesis of biologically active substances in the organism and thus by no means of minor importance to the phenomenon of longevity.