PMID- 25621254 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20150126 LR - 20201001 IS - 2231-3796 (Print) IS - 0973-7707 (Electronic) IS - 2231-3796 (Linking) VI - 67 IP - Suppl 1 DP - 2015 Mar TI - Association of cagA Positive Helicobacter pylori Infection and Laryngeal Squamous Cell Carcinoma: A PCR Approach. PG - 51-5 LID - 10.1007/s12070-014-0750-2 [doi] AB - Helicobacter pylori is a gram-negative bacillus causing benign and malignant gastric diseases such as gastroesophageal reflux (GER). In larynx, H. pylori causes chronic inflammation and mucosal destruction that may lead to malignant changes. Although, H. pylori poses several virulence factors, cagA is probably the main factor in this regard. To evaluate the role of cagA gene in laryngeal squamous cell carcinoma (LSCC), a case-control study was conducted on patients with laryngeal complaints during 2010-2012. Seventy-two patients with LSCC (case group) and 72 patients without malignancy (control group) were included in the study. The H. pylori and cagA factor were assessed in laryngeal specimen of patients with PCR technique. 33 % of patients in case group (24 patients) and 45.8 % (33 patients) of control group were positive for H. pylori. CagA gene was present in 13.8 % (10 patients) of case group specimens and 31.9 % (23 patients) of control group. This difference was statistically significant with Mantel-Haenszel statistical test analyses. The results showed that patients with LSCC have significantly lower incidence of laryngeal H. pylori infection and cagA virulence factor than those without LSCC. Findings from this study support the protective effect of H. pylori infection against laryngeal cancer. FAU - Amizadeh, Maryam AU - Amizadeh M AD - Department of Otorhinolaryngology, Kerman University of Medical Sciences, Kerman, Iran. FAU - Shamsadini, Ayeh AU - Shamsadini A AD - Department of Otorhinolaryngology, Kerman University of Medical Sciences, Kerman, Iran. FAU - Arabzadeh, Aliakbar AU - Arabzadeh A AD - Department of Medical Microbiology, Kerman University of Medical Sciences, Kerman, Iran. FAU - Jazayeri, Seyedbehzad AU - Jazayeri S AD - Farzan Clinical Research Institute, Tehran, Iran. LA - eng PT - Journal Article DEP - 20140820 PL - India TA - Indian J Otolaryngol Head Neck Surg JT - Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India JID - 9422551 PMC - PMC4298619 OTO - NOTNLM OT - Helicobacter pylori OT - Laryngeal cancer OT - SCC OT - cagA EDAT- 2015/01/27 06:00 MHDA- 2015/01/27 06:01 PMCR- 2016/03/01 CRDT- 2015/01/27 06:00 PHST- 2014/05/11 00:00 [received] PHST- 2014/07/11 00:00 [accepted] PHST- 2015/01/27 06:00 [entrez] PHST- 2015/01/27 06:00 [pubmed] PHST- 2015/01/27 06:01 [medline] PHST- 2016/03/01 00:00 [pmc-release] AID - 750 [pii] AID - 10.1007/s12070-014-0750-2 [doi] PST - ppublish SO - Indian J Otolaryngol Head Neck Surg. 2015 Mar;67(Suppl 1):51-5. doi: 10.1007/s12070-014-0750-2. Epub 2014 Aug 20.