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. 2015 May 10;15:385. doi: 10.1186/s12885-015-1402-y

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© Castillo-González et al.; licensee BioMed Central. 2015

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 2 — Histograms showing differences between unaffected and cancerous pieces in the levels of the distinct AChE mRNA variants and the single BChE transcript. mRNA of adjacent non cancerous tissues (ANCT; blue bars) and of head and neck squamous cell carcinomas (HNSCC; red bars). mRNA was extracted, retro-transcribed and amplified using the primers indicated in Additional file 1: Table S1. β-actin and GAPDH mRNAs were used as the housekeeping markers. AChE-T, AChE-H, and AChE-R stand for tailed (synaptic) AChE, hydrophobic (erythrocytic) AChE, and read-through AChE. AChE and BChE mRNA levels in HNSCC and ANCT pieces (a) and in tissues from smoker and non smoker patients (b). Note the lower AChE-T mRNA level (p = 0.036) and higher BChE mRNA level (p = 0.015) in HNSCC than ANCT pieces (a) and the significant decrease of both AChE-T and AChE-H mRNA levels in ANCT (dark blue) and HNSCC (dark red) tissues from smoker patients. (* p < 0.05)