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Determining Candidate Single Nucleotide Polymorphisms in Acquired Laryngotracheal Stenosis

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Determining Candidate Single Nucleotide Polymorphisms in Acquired Laryngotracheal Stenosis
Published by
Wiley-Blackwell, November 2017
DOI 10.1002/lary.26981
Pubmed ID

Anis, Mursalin M., Krynetskaia, Natalia, Zhao, Zhigen, Krynetskiy, Evgeny, Soliman, Ahmed M. S., Mursalin M. Anis, Natalia Krynetskaia, Zhigen Zhao, Evgeny Krynetskiy, Ahmed M. S. Soliman


Despite wide adoption of strategies to prevent injury from prolonged intubation and tracheotomy, acquired laryngotracheal stenosis (ALTS) has not disappeared. ALTS' persistence may be due to patient factors that confer unique susceptibility for some. We sought to identify genetic markers in genes associated with wound healing that could be associated with ALTS. Case-control study. One hundred thirty-eight patients were recruited, 53 patients with ALTS and 85 control patients who underwent intubation or tracheotomy without evidence of ALTS. The patients' DNA was isolated from whole blood. Custom primers were designed, and the TaqMan assay employing allele-specific polymerase chain reaction was used to interrogate single nucleotide polymorphisms (SNPs) rs1799750, rs522616, rs2276109, rs2569190, rs1800469, and rs1024611 of candidate wound healing genes MMP1, MMP3, MMP12, CD14, TGFβ1, and MCP1, respectively. A logistic regression model was used to examine the association of candidate gene polymorphisms with the presence or absence of ALTS. All 138 patients were successfully genotyped. No significant association was found between candidate SNPs and development of ALTS in the overall group. However, subgroup analysis within each ethnicity identified SNPs that are associated with ALTS depending upon the ethnic background. Patient factors such as variations in wound healing due to functional SNPs may shed light on the development of ALTS. There may be a difference in susceptibility to developing ALTS in different ethnic backgrounds. These preliminary findings need to be corroborated in larger population studies. 3b Laryngoscope, 2017.

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Readers by professional status Count As %
Researcher 1 50%
Professor > Associate Professor 1 50%
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Pharmacology, Toxicology and Pharmaceutical Science 1 50%
Biochemistry, Genetics and Molecular Biology 1 50%