Abstract
We studied spontaneous and ex vivo activated cytokine production by blood cells of male Wistar rats with different resistance to hypoxia against the background of an LPS-induced systemic inflammatory response. In rats with low (LR) and high resistance (HR) to hypoxia, the number of leukocytes, granulocytes, and peripheral blood lymphocytes was determined, the levels of spontaneous and stimulated production of IL-1β and IL-10 and their ratio were assessed ex vivo. Against the background of a systemic inflammatory response, only HR animals showed a decrease in spontaneous and stimulated production of IL-1β and spontaneous production of IL-10. The IL-1β/IL-10 ratio decreased only in LR rats during the development of a systemic inflammatory response, while in HR animals, no changes in this indicator were observed. The obtained data suggest a high proinflammatory potential of blood cells in LR rats, which apparently determines the development of a more severe course of the systemic inflammatory response.
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