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Table 4 phospho-eIF2α protein expression.

From: Cigarette smoke induces endoplasmic reticulum stress and the unfolded protein response in normal and malignant human lung cells

   Cellular Compartment  
Diagnostic Group N Normal Tumor P-value
Small Cell Carcinoma 4 0.21 ± 0.42 3.00 ± 4.13 0.1833
Non-Small Cell Carcinoma 90 0.24 ± 0.72 2.61 ± 2.77 < 0.0001*
Mixed Carcinoma 8 0.04 ± 0.12 1.79 ± 2.40 0.0324*
  1. Mean immunostaining levels (± SD) and results of statistical testing for differences between the normal and tumor cell compartments for each diagnostic group.
  2. *Statistically significant (α = 0.05)