Association of C-reactive protein polymorphisms with serum-CRP concentration and viral load among dengue-chikungunya mono/co-infected patients

India being endemic to Dengue (DENV) and chikungunya (CHIKV) infections faces high patient-mortality and morbidity with overlapping clinical features. C-reactive protein (CRP) acts as early defence system in response to these infections. This study investigated role of CRP single-nucleotide polymorp...

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Bibliographic Details
Published in:Antiviral research 2022-01, Vol.197, p.105225-105225, Article 105225
Main Authors: Sengupta, Siddhartha, Bhattacharya, Nemai, Tripathi, Anusri
Format: Article
Language:English
Subjects:
Adolescent
Adult
Aged
Antibodies, Viral - blood
C-Reactive Protein - analysis
C-Reactive Protein - genetics
Chikungunya
Chikungunya Fever - blood
Chikungunya Fever - epidemiology
Chikungunya virus - genetics
Child
Child, Preschool
Co-infection
Coinfection - epidemiology
Coinfection - virology
CRP
Dengue
Dengue - blood
Dengue - epidemiology
Dengue Virus - genetics
Female
Genotype
Humans
India - epidemiology
Male
Middle Aged
Polymorphism, Single Nucleotide
Single-nucleotide polymorphism
Viral Load
Young Adult
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Summary:India being endemic to Dengue (DENV) and chikungunya (CHIKV) infections faces high patient-mortality and morbidity with overlapping clinical features. C-reactive protein (CRP) acts as early defence system in response to these infections. This study investigated role of CRP single-nucleotide polymorphism (SNP) genotypes and protein levels towards DENV/CHIKV mono and co-infection among eastern Indian patients. 128 DENV-CHIKV co-infected, 206 DENV and 167 CHIKV mono-infected patients were subjected to genotyping of two CRP SNPs by PCR-RFLP along with 102 healthy individuals. CRP levels were determined by immunoturbidimetry. Statistical correlation of CRP genotypes with CRP concentration, DENV-CHIKV mono/co-infection and viral load was performed. Patients with rs3093059-CT and rs3091244-TT were more susceptible to DENV-CHIKV co-infection, whereas, rs3091244-CT might have imparted protection against CHIKV mono-infection. DENV-HVL was more prevalent within rs3093059-TT and rs3091244-CT co-infected patients, whereas, CHIKV-HVL among rs3091244-CC. Acute phase co-infected patients had significantly higher CRP level compared to mono-infections. Both mono and co-infected patients with aches/pain exhibited 2-3-fold higher CRP levels compared to those without. rs3093059-CT and rs3091244-CT co-infected patients had higher CRP concentration compared to rs3093059-TT and rs3091244-CC, respectively. Co-infected patients with WHO-defined warning signs had higher anti-dengue IgG/IgM ratio and serum CRP level compared to those without warning signs. Thus, patient's CRP genotype might play significant role in determining serum-CRP concentration, viral load and DENV-CHIKV mono/co-infection.
ISSN:0166-3542
1872-9096
DOI:10.1016/j.antiviral.2021.105225