Research Article

Polymorphisms in Glutathione S-Transferase M1, T1, and P1 in Patients with Chronic Periodontitis: A Pilot Study

Table 3

Results of polymorphisms in GST M1, T1, P1b, and P1c of the study groups.

GenotypeNonsmokers 
(%)
Smokers 
(%)

M1
 + b10 (33.3)17 (56.7)
 − b20 (66.7)13 (43.4)
T1
 +8 (26.7)13 (43.4)
 −22 (73.3)17 (56.7)
P1b
 a/a0 (0)3 (10)
 a/b18 (60)15 (50)
 b/b12 (40)12 (40)
P1c
 a/a24 (80)25 (83.3)
 a/c6 (20)5 (16.7)
 c/c0 (0)0 (0)

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