AI Article Synopsis

  • The study investigates the link between the PRF1 gene mutation (specifically the Ala91Val polymorphism) and the risk of hemophagocytic lymphohistiocytosis (HLH).
  • A meta-analysis of six high-quality case-control studies was conducted, involving 391 HLH patients and 975 controls, using established statistical methods.
  • The results showed a significant association between the PRF1 Ala91Val polymorphism and increased HLH risk, suggesting that further research on this genetic variation's role in HLH onset is warranted.

Article Abstract

Background: Perforin (PRF1) gene mutation can cause the onset of hemophagocytic lymphohistiocytosis (HLH). It has reported that PRF1 Ala91Val polymorphism was related with HLH risk. In the meta-analysis, we aim to evaluate the association between PRF1 Ala91Val polymorphism and HLH risk.

Methods: We accomplished a meta-analysis of six published case-control studies including 391 patients with HLH and 975 controls. We evaluated the quality of each study through Newcastle-Ottawa Scale (NOS). Data analysis was performed with Stata software.

Results: In general, all studies were of high quality (NOS score higher than 7). There were statistically significant between the PRF1 Ala91Val polymorphism and HLH risk though the pooled analysis [for Ala/Val vs. Ala/Ala: pooled odds ratio (OR) = 3.22, 95% confidence interval (CI) 1.08-9.56, P = 0.035, random model; for Ala/Val + Val/Val vs. Ala/Ala: pooled OR = 2.96, 95% CI 1.14-7.69, P = 0.025, random model]. Furthermore, sensitivity analysis also revealed a relationship between PRF1 Ala91Val polymorphism and HLH risk (for Ala/Val vs. Ala/Ala: pooled OR = 5.236, 95% CI 2.72-10.08, P < 0.000, I = 12.1%, P = 0.332; for Ala/Val + Val/Val vs. Ala/Ala, pooled OR = 4.856, 95% CI 2.66-8.85, P < 0.000, I = 5.9%, P = 0.373). Funnel plot and Egger's test did not indicate obvious published bias (P = 0.841 for Ala/Val vs. Ala/Ala; P = 0.284 for Ala/Val + Val/Val vs. Ala/Ala).

Conclusion: This meta-analysis indicated that PRF1 Ala91Val polymorphism affects the factor for developing HLH and future studies of PRF1 Ala91Val on the onset of HLH will be guaranteed.

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http://dx.doi.org/10.1007/s12519-020-00351-7DOI Listing

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Article Synopsis
  • The study investigates the link between the PRF1 gene mutation (specifically the Ala91Val polymorphism) and the risk of hemophagocytic lymphohistiocytosis (HLH).
  • A meta-analysis of six high-quality case-control studies was conducted, involving 391 HLH patients and 975 controls, using established statistical methods.
  • The results showed a significant association between the PRF1 Ala91Val polymorphism and increased HLH risk, suggesting that further research on this genetic variation's role in HLH onset is warranted.
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