The TNF-Alpha gene-1031T>C polymorphism is associated with onset age but not with risk of schizophrenia in a Chinese population

Meihong Xiu, Guangya Zhang, Nan Chen, Song Chen, Yunlong Tan, Guangzhou Yin, Lijuan Man, Yuping Ning, Xingbing Huang, Antonio L. Teixeira, Jair C. Soares, Xiangdong Du, Xiaoe Lang, Xiang Yang Zhang

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Objective: Evidence has shown the importance of tumor necrosis factor alpha (TNF-Alpha) in the pathophysiological feature in schizophrenia patients. This study aims to determine the impact of a single-nucleotide polymorphism (SNP) in the TNF-Alpha gene promoter on the susceptibility, onset age, and cognitive function of schizophrenia. Method: The SNP-1031T>C in the TNF-Alpha gene was genotyped in 905 patients and 571 healthy controls. The Positive and Negative Syndrome Scale (PANSS) was used to assess the schizophrenia symptoms and the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) for cognitive function. Results: There was no significant difference in allele or genotype distribution of the SNP-1031T>C between patients and controls (p = .85, p = .98). This polymorphism had no significant genotypic effect on the symptomatology assessed by the PANSS. Interestingly, this polymorphism was significantly correlated with onset age in schizophrenia patients (p = .004). We found an earlier onset age in patients with the TT genotype compared to those with the CT and CC genotypes (both p = .05). Moreover, there were significant genotypic effects on the immediate memory index, visuospatial/constructional index, and RBANS total score (all p = 0.05) in the patient group. Conclusions: Our results suggest that the SNP-1031T>C of the TNF-Alpha gene may not be associated with susceptibility to schizophrenia but possibly acts as a modulator for its onset age as well as for cognitive deficits.

Original languageEnglish (US)
Pages (from-to)482-489
Number of pages8
Issue number4
StatePublished - May 2019
Externally publishedYes


  • Association
  • Genotype
  • Immune
  • Onset age
  • Schizophrenia
  • Tumor necrosis factor

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology


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