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Biomedical subjects

I V Zaĭtseva

Publications and source records attributed to I V Zaĭtseva.

14 recordsLinked to original sources
PubMed1999

[The mechanical action of Dirol chewing gum on the periodontal tissues and masticatory muscles].

Regional hemodynamics, bioelectric activity of masticatory muscles, and compactness of mandibular bone were studied by the rheographic method for measuring periodontal bloodflow, by electromyography, and echo-osteometry in 52 volunteers after 4-week regular chewing of Dirol chewing gum. Congestive hyperemia develops in periodontal tissues; functional activity of masticatory muscles and compactness of mandibular bone are normal.

Adult↗
PubMed1999

[A comprehensive study of the mechanical effects of the long-term and regular use of chewing gum].

The results of regular gum chewing (30 min 3 times a day after meals for 4 weeks) were assessed in 46 volunteers by the functional diagnosis methods. Chronometry of food chewing and arbitrary gum chewing for 30 min was carried out before the investigation. Daily duration of food chewing is about 33 min. During gum chewing, the number of masticatory strikes on the inert side is higher during the first 5 min and then levels. This leads to levelling of mechanical loading of the lateral parts of the jaws and of bioelectrical activity in the masticatory muscles proper. The gum is bit 3-5 times more often with frontal teeth than with lateral teeth. Regular use of chewing gum notably increases the blood supply to the periodontium, and the regulatory mechanisms fail to cope with it in periodontal diseases; this leads to venous congestion in the regional vascular system.

Adult↗
PubMed1999

[Hemodynamic changes in the periodontium with the use of chewing gum].

The effect of gum chewing (5 min after meals 3 times a day) on periodontal blood supply was studied in a group of 52 volunteers with different clinical status of the periodontium. Tonic strain in the local vessels changed (fluctuated) little (by 2-7%). Tonic strain was shifted on the inert side and in patients with periodontal diseases. Blood consumption increased by 33%. Regular gum chewing for 10 min resulted in compensatory vasoconstriction and hyperemia of the periodontium starting from the second week, irrespective of the initial clinical status of the periodontium.

Chewing Gum↗
PubMed1985

[Immunosedimentation analysis of proteins].

After performing experiments with protein sedimentation the ultracentrifuge test-tube was attached to the inferior opening of the channel in the agar block with a vertical gradient of saccharose concentration. The liquid with protein zones was removed from the test-tube to the channel, forcing a 60% solution of saccharose beneath the lower layers in the test-tube. Horizontal electrophoresis was performed so that the protein zones penetrated the width of the channel walls. A piece of agar gel was cut out from the walls along the whole height of the channel. That piece was placed on the slide and embedded with a mixture of agar and antiserum. Immunoelectrophoresis was made according to Lowrell. The method permits obtaining for the first time continuous sedimentograms during immunodevelopment of the protein zones derived on ultracentrifugation.

Agar↗
PubMedDate not supplied

[Dopplerographic assessment of therapeutic efficacy of incoherent quantum irradiation in combined therapy of acute pyelonephritis].

The authors present a comparative estimation of therapeutic efficiency of conventional antibacterial therapy, coherent and incoherent impulse quantum irradiation at a constant magnetic field in combined therapy of 130 patients with acute pyelonephritis. Incoherent impulsive quantum irradiation at a constant magnetic field showed high clinical efficacy manifesting in early normalization of microcirculation of the affected kidney.

Acute Disease↗