OBJECTIVE: The aim of this study was to analyze association between HLA-DRB1 alleles and pulmonary tuberculosis (PTB) in the Polish population. METHODS: The HLA-DRB1 typing was performed using sequence-specific amplification (polymerase chain reaction with sequence specific primer [PCR-SSP] in 31 patients and 58 healthy volunteers. The DRB1 primers were supplied by DYNAL in the standard kit DYNAL DR "low-resolution"-SSP. RESULTS: The study showed that the DRB1*16 alleles frequency was higher in patients with PTB than in the tested group of healthy controls (P < 0.01). When HLA-DR2 alleles were combined (i.e., the DRB1*15 with DRB1*16 alleles), their frequency was comparable with that in the healthy individuals. The highest relative risk (RR) of tuberculosis was associated with DRB1*16 alleles (RR = 9.7). When HLA-DR6 alleles were combined (i.e., the DRB1*13 with DRB1*14 alleles), only a trend for higher frequency in patients with PTB was found. Frequency of DRB1*13 alleles of HLA-DR6 was significantly lower in PTB than in the healthy individuals (P < 0.001; RR = 0.04). CONCLUSIONS: Results suggest that the presence of HLA-DRB1*16 alleles may increase the risk of development of PTB, whereas HLA-DRB1*13 alleles may be resistant to tuberculosis.
OBJECTIVE: The aim of this study was to analyze association between HLA-DRB1 alleles and pulmonary tuberculosis (PTB) in the Polish population. METHODS: The HLA-DRB1 typing was performed using sequence-specific amplification (polymerase chain reaction with sequence specific primer [PCR-SSP] in 31 patients and 58 healthy volunteers. The DRB1 primers were supplied by DYNAL in the standard kit DYNAL DR "low-resolution"-SSP. RESULTS: The study showed that the DRB1*16 alleles frequency was higher in patients with PTB than in the tested group of healthy controls (P < 0.01). When HLA-DR2 alleles were combined (i.e., the DRB1*15 with DRB1*16 alleles), their frequency was comparable with that in the healthy individuals. The highest relative risk (RR) of tuberculosis was associated with DRB1*16 alleles (RR = 9.7). When HLA-DR6 alleles were combined (i.e., the DRB1*13 with DRB1*14 alleles), only a trend for higher frequency in patients with PTB was found. Frequency of DRB1*13 alleles of HLA-DR6 was significantly lower in PTB than in the healthy individuals (P < 0.001; RR = 0.04). CONCLUSIONS: Results suggest that the presence of HLA-DRB1*16 alleles may increase the risk of development of PTB, whereas HLA-DRB1*13 alleles may be resistant to tuberculosis.
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