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Table 3 Correlation between the gene expression of SIRT2, FBXW5 and CPT1B analyzed with quantitative PCR (QPCR) with % fiber type and mitochondrial DNA. Significant correlation was determined using Spearman’s rank correlation coefficient test

From: Relationship between insulin sensitivity and gene expression in human skeletal muscle

  SIRT2 FBXW5 CPT1B
% type I fiber Spearman’s rank correlation coefficient 0.46 0.47 0.44
P 0.006 0.005 0.008
n 34 34 35
% type II A fiber Spearman’s rank correlation coefficient 0.20 0.03 0.19
P 0.27 0.88 0.31
n 31 31 32
% type II B fiber Spearman’s rank correlation coefficient −0.53 −0.46 −0.46
P 0.002 0.01 0.007
n 31 31 32
Mitochondrial DNA Spearman’s rank correlation coefficient 0.42 0.25 0.40
P 0.013 0.15 0.017
n 34 34 35
  1. Abbreviations: SIRT2, sirtuin 2; FBXW5, F-box and WD repeat domain containing 5; CPT1B, carnitine palmitoyltransferase 1B