Comparison of L‐selectin blood level and gene polymorphism in tuberculosis patients with healthy individuals

BackgroundThe inflammatory response to Mycobacterium tuberculosis bacilli influences tuberculosis (TB) progression. In this study, we aimed to identify the Phe206Leu polymorphism and serum L‐selectin level in TB patients, compared to healthy individuals.MethodsNinety patients with a diagnosis of TB and 90 healthy controls were selected in this study. The serum L‐selectin level was determined, using ELISA. L‐selectin polymorphism was also evaluated using PCR. For data analysis, SPSS was used at a significance level of 0.05.ResultsAccording to the findings, the mean±SD age of the participants was 57.5 ± 18.4 and 56.5 ± 17.5 years in the TB and healthy groups, respectively. The TB group showed a significantly higher serum L‐selectin level (1721.1 ± 330.9) versus the healthy controls (1624 ± 279). The L‐selectin Phe allele frequencies were higher than the Leu allele frequencies in the main population, whereas the patients and controls were not significantly different. Eight (0.04%) subjects had Leu/Leu genotypes, 84 (46.6%) carried Phe/Leu genotypes, and 88 (48.8%) had Phe/Phe genotypes. Our results showed that the groups were not significantly different regarding L‐selectin genotypes.ConclusionTB patients had a significantly higher serum L‐selectin level, compared to the controls. Based on the findings, the incidence of TB and L‐selectin polymorphism in the Phe206Leu gene had no significant association.