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Table 2 Genotype analysis association with mtGI and metabolizing genes.

From: Analysis Association between Mitochondrial Genome Instability and Xenobiotic Metabolizing Genes in Human Breast Cancer

mtGI

Gene and Genotype

Absence, n(%)

Presence, n(%)

Odds ratio (95% CI)

P value

GSTM-1

59

35

  

 +a

42 (71.2)

14 (40)

1 (reference)

 

 null

17 (28.8)

21 (60)

3.71 (1.41–9.88)

0.006b

GSTT-1

62

32

  

 +

50 (80.6)

27 (84.4)

1 (reference)

 

 null

12 (19.4)

5 (15.6)

0.77 (0.21–2.71)

0.87c

NAT-2

62

32

  

 R∫I

30 (48.4)

22 (68.8)

1 (reference)

 

 S

32 (51.6)

10 (31.2)

0.43 (0.16–1.14)

0.09d

  1. aCases carrying the GSTM-1 gene in hetero- or homozygosis.
  2. bGSTM-1 null versus “+” genotype, the first had a significant overrepresentation of cases with mtGI.
  3. cGSTT-1 null versus “+” genotype, nonsignificant difference.
  4. dNAT-2 slow versus rapid/intermediate acetylators, nonsignificant difference.