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Biomedical subjects

A I Rybakov

Publications and source records attributed to A I Rybakov.

At least 19 recordsLinked to original sources

[Sugar in the pathogenesis of dental caries].

While the complex and versatile nature of the cariogenic effect of refined sugars in the mouth cavity is recognized, it is nevertheless believed that it is mostly due to altered metabolism in dental hard tissues in the presence of changed pancreatic insular apparatus. Caries goes through several stages in its development: phosphate metabolism disorders in dental tissue; calcium metabolism disorder; abnormal glycemia; declining ascorbic acid level and activation of the insular apparatus followed by its exhaustion. It is demonstrated, both experimentally and clinically, that caries-inducing factors are particularly dangerous in childhood when carbohydrate metabolism is disturbed, especially if due to the exposure to refined sugars. The effect of sugars on dental pulp, with a resulting decrease of its trophic influence on the teeth is believed to be very important. Sugar effects on the teeth is not a purely stomatologic problem; rather, it is of interest to other medical professions as well and has a national significance.

Diet, Cariogenic

[Changes in the phagocytic activity of leukocytes in patients with acute appendicitis].

The phagocytic activity of leucocytes in different forms of acute appendicitis in 126 patients has been studied. The phagocytic activity of leucocytes in patients with acute appendicitis a day after the operation was found to be reduced, a decrease being more pronounced in patients with a gangrenous form. It is felt that, although not being a specific reaction, the phagocytosis indices along with other clinical and laboratory investigations reflect the status of protective forces of the organism and contribute to recognition of associated complications.

Acute Disease

[General factors in the pathogenesis of parodontosis and chronic recurring aphthous stomatitis].

Parodontosis and aphthous stomatitis form a nosological entity which may be considered to be due to a pathological condition of exchange functions within the matrix of the connective tissue. As final products of the catabolism of collagen, there may be found peptid fragments containing both oxyproline and free amino acids. A large number of series of tests were made on a total of 164 patients in order to determine the various products of decomposition of collagen in the urine and their accumulation in the plasma.

Adult