C-reactive protein gene rs1205 polymorphism is associated with low-grade chronic inflammation in postmenopausal women

• Autor(a) principal: Santis, Iriane Prado de
• Data de Publicação: 2020
• Outros Autores: Lindenau, Juliana Dal-Ri, Ramos, Ramon Bossardi, Silva, Thaís Rasia da, Casanova, Gislaine Krolow, Oppermann, Karen, Spritzer, Poli Mara
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UFRGS
• Texto Completo: http://hdl.handle.net/10183/217170
• topic: Proteina C-reativa; Doenças cardiovasculares; Pós-menopausa; Inflamação; Polimorfismo genético; Estudos de associação genética; Menopause; Polymorphism; Inflammation; C-reactive protein; rs1205

Background: Cardiovascular disease is the leading cause of death in postmenopausal women, and inflammation is a key mechanism involved in the pathogenesis of atherosclerosis. High-sensitivity C-reactive protein (hs-CRP) has been used as a biomarker of inflammation. Considering that CRP gene rs1205 polymorphism has been associated with hs-CRP circulating levels, we evaluated whether rs1205 genotypes influence the presence of low-grade chronic inflammation, acting as a marker of cardiovascular risk. Methods We performed a cross-sectional study with biobanked blood samples from 327 postmenopausal women with no evidence of clinical disease. Genotyping for rs1205 C > T SNP of the CRP gene was done by real-time polymerase chain reaction with allelic discrimination assays. Results Mean age was 55.6 ± 5.6 years. Mean body mass index (BMI) was 27.3 ± 4.7. Participants were divided according to hs-CRP levels: ≥3 mg/l (low-grade chronic inflammation) or < 3 mg/l. The frequency of allele C at rs1205 was 74.2% in the hs-CRP ≥ 3 mg/l group vs. 59% in the hs-CRP < 3 mg/l. In a multivariable model, higher prevalence of hs-CRP ≥ 3 mg/l was associated with CC genotype (PR 1.53; 95%CI 1.07–2.18; p = 0.018) and waist circumference ≥ 88 cm (PR 2.45; 95%CI 1.66–3.60; p < 0.001). Conclusions CRP rs1205 CC homozygotes may be at higher risk of a low-grade chronic inflammatory status compared to individuals carrying the T allele.