PMID- 18357839 OWN - NLM STAT- MEDLINE DCOM- 20080424 LR - 20191110 IS - 0003-4894 (Print) IS - 0003-4894 (Linking) VI - 117 IP - 2 DP - 2008 Feb TI - Inflammatory factor profiles one hour following vocal fold injury. PG - 145-52 AB - OBJECTIVES: Inflammatory factors are key mediators of wound healing processes following injury, and their modulation may improve healing outcomes. The objective of this study was to characterize in vivo inflammatory factor and extracellular matrix (ECM) messenger RNA (mRNA) expression levels 1 hour after vocal fold injury. METHODS: Five Sprague-Dawley rats were subjected to bilateral vocal fold injury, 5 rats were reserved as uninjured controls, and 1 rat was subjected to unilateral vocal fold injury and reserved for histology. Tissue was harvested 1 hour after injury. Real-time reverse transcription-polymerase chain reaction was performed to examine the mRNA expression profiles of inflammatory factors nuclear factor kappa beta (NF-kappabeta), interferon gamma (IFN-gamma), cyclooxygenase 2 (COX-2), transforming growth factor beta isoform 1 (TGF-beta1), tumor necrosis factor alpha (TNF-alpha), and interleukin 1 beta (IL-1beta), as well as ECM genes hyaluronic acid synthase (HAS) 1, HAS-2, procollagen 1, procollagen 3, and elastin, in the injured samples compared with the uninjured controls. RESULTS: Injury resulted in subepithelial bleeding throughout the vocal fold. The COX-2, TNF-alpha, IL-1beta, and HAS-1 mRNA expression levels were significantly up-regulated 1 hour after injury compared with the uninjured controls. CONCLUSIONS: Inflammatory factor and ECM gene expression changes occur in vocal fold wound sites as early as 1 hour after injury. These results should inform future efforts to attenuate vocal fold scarring via the modulation of inflammatory factors. FAU - Welham, Nathan V AU - Welham NV AD - Division of Otolaryngology, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA. FAU - Lim, Xinhong AU - Lim X FAU - Tateya, Ichiro AU - Tateya I FAU - Bless, Diane M AU - Bless DM LA - eng GR - R01 DC004428/DC/NIDCD NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PL - United States TA - Ann Otol Rhinol Laryngol JT - The Annals of otology, rhinology, and laryngology JID - 0407300 RN - 0 (Extracellular Matrix Proteins) RN - 0 (Inflammation Mediators) RN - 0 (RNA, Messenger) SB - IM MH - Animals MH - Extracellular Matrix Proteins/biosynthesis/genetics MH - Gene Expression MH - *Inflammation Mediators MH - Male MH - RNA, Messenger/analysis MH - Rats MH - Rats, Sprague-Dawley MH - Time Factors MH - Vocal Cords/*injuries EDAT- 2008/03/25 09:00 MHDA- 2008/04/25 09:00 CRDT- 2008/03/25 09:00 PHST- 2008/03/25 09:00 [pubmed] PHST- 2008/04/25 09:00 [medline] PHST- 2008/03/25 09:00 [entrez] AID - 10.1177/000348940811700213 [doi] PST - ppublish SO - Ann Otol Rhinol Laryngol. 2008 Feb;117(2):145-52. doi: 10.1177/000348940811700213.