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International Journal of Physiology and Pathophysiology

年間 4 号発行

ISSN 印刷: 2155-014X

ISSN オンライン: 2155-0158

SJR: 0.116

Disorders of Oxygen-Dependent Processes in Periodontal Tissues under Prolonged Immobilization Stress and the Ways of Their Pharmacological Correction

巻 4, 発行 4, 2013, pp. 315-324
DOI: 10.1615/IntJPhysPathophys.v4.i4.50
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要約

The effects of prolonged immobilization (6 h strict horizontal position of rats in the tight containers daily for 2 weeks) on oxygen tension in the gingival tissue, oxygen consumption by the mandible alveolar bone, pro-/antioxidant balance and energetic metabolism of soft periodontal tissues were investigated. It has been shown that prolonged immobilization stress results in a marked decrease in the gingival tissue PO2 (by 36%), oxygen consumption rate in the bone tissue (by 46%), and a reduction in the gingival mitochondrial respiration rate, compared to the control values. The latter is more significantly manifested in case of oxidation of α-ketoglutarate, NAD-dependent substrate of the respiratory chain, compared to succinate, FAD-dependent one. The prolonged stress results in intensification of peroxide processes and a depletion of antioxidant protection of the soft periodontal tissues. It has been found that pharmacological drugs Thiotriazolin and Actovegin possess modifying protective effect on stress-induced disorders of oxygen homeostasis in the soft and hard periodontal tissues under prolonged immobilization stress.

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