The PCR was performed for 1 cycle of 94 °C for 3 min, then 30 cycles of 94 °C for 30 s, 60 °C for 30 s, 72 °C for 45 s and then a final 3 min at 72 °C. PCR products were run on 1.5% gel stained with ethidium bromide and visualized by UV light–generating bands (Fig. 1B). Pearson’s χ2 test was used to examine differences in characteristic
variables and the distribution of genetic polymorphisms. Odds ratio (O.R) and 95% confidence interval (CI) were calculated using JAVASTAT. All epidemiologic variables were determined using IBM SPSS Statistics 20 software, where student’s t-test is used to evaluate continuous variables, and χ2 test, for categorical variables. The gene–gene interaction for SNPs was analysed by nonparametric multifactor dimensionality Opaganib manufacturer reduction (MDR
version 2.0 beta 8.4) analysis. Distribution of alleles and deviation of genotype frequencies were tested by using Hardy–Weinberg equilibrium (HWE). P < 0.05 was considered to be statistically significant for all the tests except HWE. Bonferroni correction, an adjustment made to P values, was used to reduce the chances of obtaining false-positive results (P < 0.0005). The demographic profile of tuberculosis cohort was studied. The mean age of the patients (50 males and 50 females), their HHC (44 males selleck products and 56 females) and HC (54 males and 46 females) was 27.4 ± 13.9, 34.8 ± 10.7 and 30 ± 10.7, respectively. TST positivity was observed in patients and HHC with a significance of P < 0.0001. Mean BMI was found to be 16.8 ± 4.25, 22.6 ± 6.85 and 23.7 ± 4.09 in patients, HHC and HC, respectively, and there was significant difference in patients versus HHC and patients versus HC (P < 0.001 and P < 0.0001) (Table 1). 0.15a Pts versus HHC 0.17apts versus HC The genotype frequencies of IL-1 β (+3954 C/T) polymorphism did not vary significantly between TB patients and HC (P < 0.32, 0.395 and 0.89 for CC, CT and TT ADP ribosylation factor respectively). CC genotype was found to be significantly associated with HHC versus HC (P < 0.03, OR = 1.833 and 95% CI = 1.1–3.35) while Bonferroni correction
was not significant. Frequency of alleles did not differ significantly in all the subjects with T allele more frequently found when compared with the C allele (Table 2). IL-1β (+3954 C/T) was found to be in Hardy–Weinberg equilibrium with P > 0.05 (χ2 = 0.08). In IL-10-1082 G/A polymorphism, GG (P < 0.005, OR = 0.219 and 95% CI = 0.059–0.735) and GA (P < 0.0001, OR = 2.938 and 95% CI = 1.526–5.696) genotypes were found to be significantly associated with patients versus HC. GA (P < 0.0001, OR = 0.194 and 95% CI = 0.069–0.516) and AA (P < 0.0001, OR = 4.612 and 95% CI = 2.225–9.702) genotypes in HHC versus HC have shown significant association. Allele frequency was found to be similar in all the subjects (Table 3).