NDLI: A Comparison of the Anti-Inflammatory Effects of Cis-9, Trans-11 Conjugated Linoleic Acid to Celecoxib in the Collagen-Induced Arthritis Model

Content Provider	Springer Nature Link
Author	Olson, Jake M. Haas, Alexander W. Lor, Jennifer McKee, Holly S. Cook, Mark E.
Copyright Year	2017
Abstract	Cyclooxygenase (COX)-2 inhibitors, such as celecoxib, for chronic inflammatory disease are associated with adverse health events, while cis-9, trans-11 (c9t11) conjugated linoleic acid (CLA) is anti-inflammatory without adverse events attributed to pure intake. Mechanistically, celecoxib and c9t11 disrupt the arachidonic acid cascade; however, the equivalency of anti-inflammatory effects between these compounds is unknown. Therefore, to test the hypothesis that 0.5% dietary c9t11 reduces inflammation equivalently to a celecoxib dose intended to treat rheumatoid arthritis (RA; 5 mg/kg bw), arthritic mice received diets containing one of the following supplements: 1% corn oil (CO, w/w), 0.5% c9t11 (>91% purity) +0.5% CO, or 1% CO + 0.5, 5, or 50 mg/kg bw celecoxib, and were assessed for changes in arthritic severity over 6 weeks. Overall, arthritic severity in mice fed c9t11 was reduced (34%, P < 0.01) while celecoxib doses (0.5, 5, 50 mg/kg) reduced arthritic severity (16, 56, 48%, respectively) compared to CO-fed arthritic mice. Linear regression of the celecoxib dose-response showed 0.5% c9t11 (570 mg/kg bw) reduced arthritic severity equivalently to 1.5 mg/kg celecoxib. Interleukin-6 (IL-6) was increased in paws of arthritic mice fed CO compared to shams, but was decreased in arthritic groups fed 0.5% c9t11 and 5 mg/kg celecoxib, compared to arthritic mice fed CO (Ps ≤ 0.05). Additionally, paw and plasma IL-10 levels in arthritic mice were decreased by 5 mg/kg celecoxib, but were unaffected by c9t11 compared to CO. Results suggest dietary c9t11 may be an effective adjunct to COX-2 inhibition for treating chronic inflammation.
Starting Page	151
Ending Page	159
Page Count	9
File Format	PDF
ISSN	00244201
Journal	Lipids
Volume Number	52
Issue Number	2
e-ISSN	15589307
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2017-01-11
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Conjugated linoleic acid COX inhibitor Celecoxib Collagen-induced arthritis Cyclooxygenase Inflammation Lipidology Neurochemistry Medical Biochemistry Nutrition Medicinal Chemistry Microbial Genetics and Genomics
Content Type	Text
Resource Type	Article
Subject	Cell Biology Organic Chemistry Biochemistry

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