Table 1.
Baseline characteristics of COPD group, healthy smoker group and no smokers group.
Table 2.
Relative mitochondria DNA copy number related to variables in COPD group, healthy smoker group and no smoker group respectively.
Fig 1.
Relative mtDNA copy number of peripheral leukocytes in COPD group, heathy smokers and no-smokers.
MtDNA copy number: COPD group (N = 86, 250.3± 21.5); heathy smokers group (N = 33, 404.0± 76.7); non-smokers group(N = 77, 464.2± 49.9). Results are expressed as mean ± standard error. P<0.001, COPD group vs. non-smokers group; P = 0.08, COPD group vs. heathy smokers group; NS, non-smokers group vs. heathy smokers group.
Fig 2.
Relative mtDNA copy number of peripheral leukocytes correlates with serum glutathione level.
Pearson correlation test shows a significant liner correlation between mtDNA copy number and serum glutathione level (R = 0.2, P = 0.009).