Effects of corticosteroid on the expressions of neuropeptide and cytokine mRNA and on tenocyte viability in lateral epicondylitis

<p>Abstract</p> <p>Background</p> <p>The purpose of this study was to determine the reaction mechanism of corticosteroid by analyzing the expression patterns of neuropeptides (substance P (SP), calcitonin gene related peptide (CGRP)) and of cytokines (interleukin (IL)-1...

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Principais autores: Han Soo (Autor), An Hee (Autor), Song Ji (Autor), Shin Dong (Autor), Kwon Young (Autor), Shim Jong (Autor), Lee Soon (Autor)
Formato: Livro
Publicado em: BMC, 2012-10-01T00:00:00Z.
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042 |a dc 
100 1 0 |a Han Soo  |e author 
700 1 0 |a An Hee  |e author 
700 1 0 |a Song Ji  |e author 
700 1 0 |a Shin Dong  |e author 
700 1 0 |a Kwon Young  |e author 
700 1 0 |a Shim Jong  |e author 
700 1 0 |a Lee Soon  |e author 
245 0 0 |a Effects of corticosteroid on the expressions of neuropeptide and cytokine mRNA and on tenocyte viability in lateral epicondylitis 
260 |b BMC,   |c 2012-10-01T00:00:00Z. 
500 |a 10.1186/1476-9255-9-40 
500 |a 1476-9255 
520 |a <p>Abstract</p> <p>Background</p> <p>The purpose of this study was to determine the reaction mechanism of corticosteroid by analyzing the expression patterns of neuropeptides (substance P (SP), calcitonin gene related peptide (CGRP)) and of cytokines (interleukin (IL)-1α, tumor growth factor (TGF)-β) after corticosteroid treatment in lateral epicondylitis. In addition, we also investigated whether corticosteroid influenced tenocyte viability.</p> <p>Methods</p> <p>The corticosteroid triamcinolone acetonide (TAA) was applied to cultured tenocytes of lateral epicondylitis, and the changes in the mRNA expressions of neuropeptides and cytokines and tenocyte viabilities were analyzed at seven time points. Quantitative real-time polymerase chain reaction and an MTT assay were used.</p> <p>Results</p> <p>The expression of SP mRNA was maximally inhibited by TAA at 24 hours but recovered at 72 hours, and the expressions of CGRP mRNA and IL-1α mRNA were inhibited at 24 and 3 hours, respectively. The expression of TGF-β mRNA was not significant. Tenocyte viability was significantly reduced by TAA at 24 hours.</p> <p>Conclusions</p> <p>We postulate that the reaction mechanism predominantly responsible for symptomatic relief after a corticosteroid injection involves the inhibitions of neuropeptides and cytokines, such as, CGRP and IL-1α. However the tenocyte viability was compromised by a corticosteroid.</p> 
546 |a EN 
690 |a Lateral epicondylitis 
690 |a Corticosteroid 
690 |a Neuropeptide 
690 |a mRNA 
690 |a Tenocyte viability 
690 |a Therapeutics. Pharmacology 
690 |a RM1-950 
655 7 |a article  |2 local 
786 0 |n Journal of Inflammation, Vol 9, Iss 1, p 40 (2012) 
787 0 |n http://www.journal-inflammation.com/content/9/1/40 
787 0 |n https://doaj.org/toc/1476-9255 
856 4 1 |u https://doaj.org/article/ffa33e8581e94ab88b4e6ff42eee2b6e  |z Connect to this object online.