Protective Effect of Dexamethasone on Lipopolysaccharide-Induced Inhibition of Contractile Function of Isolated Lymphatic Vessels and Nodes
- Authors: Lobov G.I.1, Unt D.V.1
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Affiliations:
- Laboratory of Physiology of Cardiovascular and Lymphatic Systems, I. P. Pavlov Institute of Physiology, Russian Academy of Sciences
- Issue: Vol 165, No 5 (2018)
- Pages: 602-605
- Section: Article
- URL: https://journals.rcsi.science/0007-4888/article/view/240590
- DOI: https://doi.org/10.1007/s10517-018-4222-7
- ID: 240590
Cite item
Abstract
LPS has an inhibitory effect on contractile activity of bovine mesenteric lymphatic vessels and nodes and causes a pronounced decrease in the tone and phase contractions. The selective inhibitor of inducible NO synthase, 1400W, and cyclooxygenase-2 selective inhibitor, dynastat, significantly attenuated the inhibitory effect of LPS. Dexamethasone interferes with the inhibitory effect of LPS on bovine lymphatic vessels and nodes. It was concluded that LPS stimulates expression of inducible NO synthase and cyclooxygenase-2 in endothelial and smooth muscle cells of lymphatic vessels and nodes. Dexamethasone has a pronounced protective effect on the contractile function of lymphatic vessels and nodes affected by LPS and suppresses the expression of inducible NO synthase and cyclooxygenase-2.
About the authors
G. I. Lobov
Laboratory of Physiology of Cardiovascular and Lymphatic Systems, I. P. Pavlov Institute of Physiology, Russian Academy of Sciences
Author for correspondence.
Email: gilobov@yandex.ru
Russian Federation, St. Petersburg
D. V. Unt
Laboratory of Physiology of Cardiovascular and Lymphatic Systems, I. P. Pavlov Institute of Physiology, Russian Academy of Sciences
Email: gilobov@yandex.ru
Russian Federation, St. Petersburg