Lymphoprotective effect of perftoran.

Experiments on rats showed that the lymphoprotective effect of Perftoran manifests in stimulation of contractile activity of myocytes in the wall and valve cusps of lymphatic microvessels, which in turn activates the pump and capacitive functions of the lymphatic system and improves central lymph outflow. These changes contribute to an increase in the resorption and transport of cell and tissue metabolites from the interstitial space.

Change in lymph flow during low-grade fever and febrile fever under experimental conditions.

Experiments on rats showed that low-grade fever is accompanied by a decrease in the central lymph flow rate, which results from inactivation of lymphangion components in lymphatic microvessels of the small intestine mesentery. Lymph flow rate was shown to increase during pyrogenal-induced fever, which did not depend on the duration of the disease.

Content of trace elements in the lymph and blood during pyrogenal-induced fever and complete freund's adjuvant-induced low-grade fever.

Experiments on rats showed that complete Freund's adjuvant-induced low-grade fever and pyrogenal-induced fever are accompanied by an increase in the content of Mn, Cu, Zn, and Se in the thoracic duct lymph. Our results indicate that the lymphatic system supplies trace elements to the circulation, which compensates for a deficiency in trace elements and maintains their systemic circulation. The decrease in the content of some trace elements in the blood during fever is probably associated with their excessive consumption (e.g., to maintain the antioxidant defense system). During experimental low-grade fever and pyrogenal-induced fever, the lymphatic system serves as the reservoir for trace elements and plays a role in the regulation of trace element balance in biological fluids.

Antioxidant protection and lipid peroxidation in the lymph and blood during complete Freund's adjuvant-induced low-grade fever and pyrogenal-induced fever.

Experiments on rats showed that complete Freund's adjuvant-induced low-grade fever and pyrogenal-induced fever of different duration are accompanied by an increase in the content of lipid peroxidation products and components of the antioxidant system not only in blood plasma, but also in the central lymph. These changes reflect activation of drainage, evacuation, and transport function of the lymphatic system. We conclude that the lymphatic system plays an important role in the maintenance of the prooxidant-antioxidant balance under these pathological conditions.