Q705K variant in NLRP3 gene confers protection against myocardial infarction in female individuals

Varghese,Geena  Paramel; Fransén,Karin; Hurtig‑Wennlöf,Anita; Bengtsson,Torbjörn; Jansson,Jan‑Håkan; Sirsjö,Allan

doi:10.3892/br.2013.155

Q705K variant in NLRP3 gene confers protection against myocardial infarction in female individuals

Authors:
- Geena Paramel Varghese
- Karin Fransén
- Anita Hurtig‑Wennlöf
- Torbjörn Bengtsson
- Jan‑Håkan Jansson
- Allan Sirsjö
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Affiliations: Department of Clinical Medicine, School of Health and Medical Sciences, Örebro University, SE‑701 82 Örebro, Sweden, Department of Internal Medicine, Skellefteå Hospital and Umeå University Hospital, SE-931 86 Umeå, Sweden
Published online on: August 7, 2013 https://doi.org/10.3892/br.2013.155
Pages: 879-882

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Abstract

Inflammation is a multifaceted process that underlies the pathophysiology of acute myocardial infarction (MI). Variations in the inflammasome‑related NLRP3 gene have been associated with risk for a number of different inflammatory diseases. Therefore, Q705K polymorphism in NLRP3 gene likely confers susceptibility to risk for MI. A First‑ever myocardial Infarction study in Ac‑county (FIA) cohort comprising 555 MI patients and 1,016 controls was used to genotype rs35829419 in the NLRP3 gene by TaqMan single‑nucleotide polymorphism assay. C‑reactive protein (CRP) was measured in the study participants by ELISA. The results showed no significant association between the variant rs35829419 and MI. However, the minor A allele of the rs35829419 polymorphism conferred a protective effect against the risk of developing MI in females. The minor A allele of rs35829419 polymorphism was also associated with increased CRP levels in males. Results of the study suggested a gender‑specific deregulation of NLRP3 gene mediated by rs35829419 polymorphism that confers protection against MI in females but has no effect on MI susceptibility in males. However, the rs35829419 polymorphism was associated with increased CRP levels among the male subjects, thereby demonstrating the possible effect of the Q705K polymorphism in elevating the basal active state of innate immune response.

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