Journal
BRITISH JOURNAL OF CLINICAL PHARMACOLOGY
Volume 88, Issue 8, Pages 3562-3565Publisher
WILEY
DOI: 10.1111/bcp.15328
Keywords
COVID-19; kidney injury; PDE-4 inhibitor; Roflumilast; tumour necrosis factor-alpha
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COVID-19 has affected nearly 160 million people worldwide, with the elderly and pre-existing patients being more susceptible to severe illness. Roflumilast, a PDE4 inhibitor, has shown potential in protecting renal tissues and major organ systems by reducing immune cell infiltration after COVID-19 infection. Its immune-balancing effects are associated with decreased oxidative and inflammatory burden, caspase-3 suppression, and increased PKA/cAMP levels in renal and other organ tissue.
COVID-19 has spread globally, affecting almost 160 million individuals. Elderly and pre-existing patients (such as diabetes, heart disease and asthma) seem more susceptible to severe illness with COVID-19. Roflumilast was licensed for usage in the European Union in July 2010 as a phosphodiesterase-4 (PDE4) inhibitor. Under preclinical studies, roflumilast has been shown to decrease bleomycin-induced lung fibrosis, lung hydroxyproline and right heart thickening. The current study reviewed existing data that the PDE-4 inhibitor, a roflumilast, protects renal tissues and other major organ systems after COVID-19 infection by decreasing immune cell infiltration. These immune-balancing effects of roflumilast were related to a decrease in oxidative and inflammatory burden, caspase-3 suppression and increased protein kinase A (PKA)/cyclic A.M.P. (cAMP) levels in renal and other organ tissue.
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