ABSTRACT. Interleukin-6 (IL-6) is a multifunctional cytokine that is involved in tumor cell proliferation, apoptosis, and differentiation. The purpose of this study was to evaluate the impact of the single nucleotide polymorphism (SNP) -174G/C in IL-6 on the prognosis and pain tolerance of non-small cell lung cancer (NSCLC) patients. DNA was extracted from the peripheral blood of 434 patients with NSCLC, which was diagnosed by cytology or histology. Polymerase chain reaction-restriction fragment length polymorphism was used to detect the IL-6 -174G/C genotypes and their correlation with survival was analyzed. The IL-6 -174G/C genotypes were high IL-6 production type (G carriers -GG or GC genotypes) and low IL-6 production type (CC genotype). The correlation between the IL-6 SNP and pain level/analgesic use was also analyzed. Survival analysis showed that patients carrying the G allele (CG/GG) had a shorter survival time than patients with the CC genotype. The -174G/C SNP is in the promoter region of the IL-6 gene and may be associated with changes in gene transcription and serum cytokine levels. Presence of the IL-6 -174G/C SNP is significantly correlated with morphine equivalent daily dose. Patients with the CC genotype needed a higher opioid dose than patients with the GG or GC genotypes. In conclusion, we found that the IL-6 -174G/C SNP is closely related to survival, analgesic use and pain tolerance in NSCLC patients. However, it is necessary to further validate the results with a larger patient cohort and elucidate the mechanisms of this SNP. Link to retraction noticed R E T R A C T I O N
To investigate the relationship between thrombomodulin (THBD) gene single nucleotide polymorphisms (SNPs) and susceptibility to sepsis and the occurrence and prognosis of acute kidney injury (AKI) in sepsis patients. The genotypes of THBD gene rs1962, rs3176123, and rs1042580 in 178 sepsis patients with AKI, 243 sepsis patients without AKI (No AKI), and 103 healthy controls were analyzed by direct sequencing. Enzyme-linked immunosorbent assay (ELISA) was used to detect the plasma THBD protein levels. Receiver operating characteristic (ROC) curve analysis was performed to evaluate the diagnostic value of plasma THBD levels in sepsis, AKI, and death of sepsis patients. The C allele carriers of THBD gene rs1962 were more likely to develop AKI and sepsis than the T allele carriers (OR = 1.61, 95% CI: 1.18–2.19, P < .01; OR = 2.16, 95% CI: 1.42–3.29, P < .01). The rs3176123 G allele was associated with an increased risk of AKI in sepsis patients (OR = 1.41, 95% CI: 1.06–1.88, P = .02), the G allele had a significant association with a higher risk of sepsis susceptibility (OR = 1.91, 95% CI: 1.33–2.75, P < .01). Sepsis patients of rs1042580 C allele had a lower risk of AKI than those of T allele (OR = 0.58, 95% CI: 0.37–0.91, P = .02), the C allele was related to a reduced risk of sepsis susceptibility (OR = 0.38, 95% CI: 0.26–0.55, P < .01). The THBD gene rs1962, rs3176123, and rs1042580 TGT haplotype was linked to higher risk of AKI in patients with sepsis (OR = 1.96, 95%CI: 1.14–3.38, P = .02). Sepsis patients with the THBD gene rs1962 TC + CC genotype had a higher risk of death than those with TT genotype (OR = 10.93, 95%CI: 5.05–26.96, P < .01), but there was no significant difference in the risk of death in sepsis patients with different genotypes at rs3176123 and rs1042580 ( P > .05). The THBD gene rs1962, rs3176123, and rs1042580 SNPs are significantly associated with sepsis susceptibility and the risk of AKI. The rs1962 SNP is related to the risk of death in sepsis patients.
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