4.7 Article

Significance of 1,25-Dihydroxyvitamin D3 on Overall Mortality in Peritoneal Dialysis Patients with COVID-19

Journal

NUTRIENTS
Volume 15, Issue 9, Pages -

Publisher

MDPI
DOI: 10.3390/nu15092050

Keywords

calcitriol; COVID-19; peritoneal dialysis; glycosylation; mortality

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In previous publications, it was found that mannosylation of fibrinogen and fucosylation can predict cardiovascular complications and peritoneal membrane dysfunction in PD patients. In this study, after a 30-month follow-up period during the COVID-19 pandemic, it was demonstrated that calcitriol therapy and diabetes mellitus were potential predictors of mortality in PD patients, with diabetes mellitus being the strongest predictor. Calcitriol therapy significantly reduced mortality in these patients. This study also suggests that aberrant fibrinogen glycosylation may contribute to thrombogenic events observed in PD patients during the pandemic.
In previous publications, we pointed out the importance of mannosylation of fibrinogen for the development of cardiovascular complications and fucosylation as a predictor of peritoneal membrane dysfunction in patients on peritoneal dialysis (PD). After a follow-up period of 30 months from the onset of the COVID-19 pandemic, we evaluated the significance of 1,25-dihydroxyvitamin D-3 (calcitriol) therapy, primary disease, biochemical and hematologic analyzes, and previously performed glycan analysis by lectin-based microarray as predictors of mortality in this patient group. After univariate Cox regression analysis, diabetes mellitus (DM) and calcitriol therapy were found to be potential predictors of mortality. Additional multivariate Cox regression analysis confirmed that only DM was a predictor of mortality. Nevertheless, the use of calcitriol in therapy significantly reduced mortality in this patient group, as shown by the Kaplan-Meier survival curve. The presence of DM as a concomitant disease proved to be a strong predictor of fatal outcome in PD patients infected with SARS-CoV-2. This is the first study to indicate the importance and beneficial effect of calcitriol therapy on survival in PD patients with COVID-19 infection. In addition, this study points to the possibility that adverse thrombogenic events observed in PD patients during the pandemic may be caused by aberrant fibrinogen glycosylation.

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