TNF and paraneoplastic neurologic syndrome: Meta-analysis results revealed a positive association between TNF-α rs1800629 polymorphism and allele contrast in African populations (p = 0), homozygote comparison (p = .007), heterozygote comparison (p = .026), recessive genetic model (p = .011), and dominant genetic model (p = .000).<h4>Conclusions</h4>TNF-α rs1800629 polymorphism does not appear to confer any increased risk for PNS.