[The dependence of the connective tissue reaction to stress on typological body characteristics]. / Zavisimost' reaktsii soedinitel'noi tkani na stress ot tipologicheskikh svoistv organizma.

The experiment on 52 Wistar rats was made to study dependence of connective tissue reactions on typological properties of the body. The type of the reaction is closely related with the degree of changes in connective tissue structures of the digestive organs (periodontium, stomach) and the lungs. Acute stress stimulates degradation of the noncollagen proteins of the connective tissue main substance.

Menaquinone function in the respiratory chain of Micrococcus lysodeikticus. / Funktsiia menakhinona v dykhatel'noi tsepi Micrococcus lysodeikticus

Menaquinone-9 which is destructed under long-wave UV-irradiation is isolated from Micrococcus lysodeikticus membranes. NAD-H, malate and lactate oxidases are observed to be inhibited under irradiation, dehydrogenases of these substrates being almost intact. Photoinactivation of menaquinone results in the reduction of only one from two cytochromes b, presented in the membrane, thus testifying the location of menaquinone-9 between cytochromes b in the respiratory chain. Reconstruction of malate, NAD-H and lactate oxidases after irradiation took place when natural menaquinone (MQ-9) or menadione (MQ-0) were added. Detailed scheme of M. lysodeikticus respiratory chain is given.