Apolipoprotein C3 and beta-cell dysfunction are linked in patients with systemic lupus erythematosus

  1. Candelaria Martín-González 1
  2. Carmen Ferrer-Moure 2
  3. Juan Carlos Quevedo-Abeledo 3
  4. Miguel Ángel González-Gay 4
  5. Iván Ferraz-Amaro 2
  1. 1 Universidad de La Laguna
    info

    Universidad de La Laguna

    San Cristobal de La Laguna, España

    ROR https://ror.org/01r9z8p25

  2. 2 Hospital Universitario de Canarias
    info

    Hospital Universitario de Canarias

    San Cristóbal de La Laguna, España

    ROR https://ror.org/05qndj312

  3. 3 Hospital Doctor Negrín
  4. 4 Universidad de Cantabria
    info

    Universidad de Cantabria

    Santander, España

    ROR https://ror.org/046ffzj20

Revista:
Clinical and experimental rheumatology

ISSN: 0392-856X

Ano de publicación: 2021

Tipo: Artigo

DOI: 10.55563/CLINEXPRHEUMATOL/CEZJNR GOOGLE SCHOLAR

Outras publicacións en: Clinical and experimental rheumatology

Obxectivos de Desenvolvemento Sustentable

Resumo

Objectives: Systemic lupus erythematosus (SLE) has been associated with insulin resistance and beta-cell dysfunction. Apolipoprotein C3 (ApoC3) is a component of very low-density lipoproteins. Since ApoC3 has been linked to beta-cell impairment in the general population, in this study we aimed to discover if this lipoprotein is related to glucose homeostasis disturbance in patients with SLE.Methods: One hundred and forty non diabetic patients with SLE who had a glycaemia lower than 110 mg/dl were recruited. Insulin, C-peptide, and ApoC3 were assessed. Insulin resistance and beta-cell function were calculated using the Homeostasis Model Assessment (HOMA2) indices. A multivariable regression analysis was performed to study the relationship of ApoC3 to those molecules and indices adjusting for classical factors associated with insulin resistance that included glucocorticoids.Results: In the multivariable regression analysis that included prednisone intake, a significant relation of ApoC3 to C-peptide was found (beta coef. 0.27 [95%CI 0.03-0.51) ng/ml, p=0.030). Similarly, ApoCa3 was associated with higher degree of beta-cell dysfunction (HOMA2-%B) although in this case statistical significance was not achieved (beta coef. 8 [95%CI-1-18], p=0.086). This relationship was not found with serum insulin levels or IR indices. Furthermore, in the univariable analysis, but not after multivariable adjustment, the disease damage score was found to significantly mediate the effect of ApoC3 on circulating C-peptide. and HOMA2-%B.