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Potential genetic polymorphism of matrix metalloproteinase (MMP)-9 in Iranian migraine patients with Toxoplasma gondii infection

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Abstract

Toxoplasma gondii is an intracellular protozoan parasite that causes neuroinflammation in the brain and a constant need for peripheral leukocyte migration. Matrix metalloproteinase 9 (MMP-9) can play a major role in this neuroinflammation and be implicated in some neurological disorders, such as migraines. Therefore, the genetic polymorphism evaluation of MMP-9 in migraine patients with T. gondii infection was performed. One hundred fourteen migraine patients and 114 healthy controls were evaluated for the presence of anti-Toxoplasma IgG antibodies. Seventy-two migraine patients and 40 healthy controls were randomly selected for assessment of the MMP 9-1562C/T genetic polymorphism. In the preliminary examination, 61 (53.5%) migraine patients and 43 (37.3%) healthy controls were positive for IgG antibodies, with a significant association between T. gondii seropositivity and migraine (OR = 1.90; 95% CI = 1.21–3.223; P = 0.012). Genetic distribution for the polymorphism was not in Hardy–Weinberg equilibrium in cases but showed no significant variation in control groups (P = 0.03 and P = 0.180, respectively). A significant preponderance of the CT + TT genotype was found in migraine subjects compared to controls (P = 0.042) (OR, 1.77, CI, 1.013–2.229). The homozygote muted allele TT had a higher rate in migraine patients (6.9%). There were significant differences in CT + TT genotype between T. gondii positive and negative migraine patients (P = 0.024), but T allele frequencies had no significant variation (OR 1.7 CI, 1.084–2.44 and 0.42 CI, 0.044–3.97, respectively). In conclusion, the results may provide the first evidence for the involvement of the MMP-9 gene polymorphism in the mechanism of migraine pathology following Toxoplasma infection.

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No datasets were generated or analysed during the current study.

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Funding

This study was supported by the Babol University of Medical Sciences (Grant No: 140114225).

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Contributions

T.G.F., P.S, and E.F.S. made substantial contributions to the conception and design of the study. All authors contributed to data acquisition, T.G.F., and S.H. performed experimental works. T.G.F. analyzed and interpreted the data. T.G.F. has written the first draft of the manuscript and revised it critically. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Tahmineh Gorgani-Firouzjaee.

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The present study was approved by the Ethics Committee at Babol University of Medical Sciences, Babol, Iran (IR.MUBABOL.REC. 1400.143).

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The authors declare no competing interests.

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Section Editor: Dana Mordue

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Hashemi, S., Saadat, P., Gorgani-Firouzjaee, T. et al. Potential genetic polymorphism of matrix metalloproteinase (MMP)-9 in Iranian migraine patients with Toxoplasma gondii infection. Parasitol Res 123, 140 (2024). https://doi.org/10.1007/s00436-024-08156-7

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  • DOI: https://doi.org/10.1007/s00436-024-08156-7

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