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Prognostic value of apolipoproteins in COVID-19 patients: A systematic review and meta-analysis
Juan R Ulloque-Badaracco1, Enrique A Hernandez-Bustamante2, Percy Herrera-Añazco3
1Escuela de Medicina, Universidad Peruana de Ciencias Aplicadas, Lima, Peru.
Insights
Adequate ApoliproteinA1 (ApoA1) and ApoliproteinB (ApoB) levels may protect against severe COVID-19. Low ApoA1 levels were linked to higher mortality risk, while the ApoB/ApoA1 ratio showed no predictive value for disease severity.
Area of Science:
- Biochemistry
- Immunology
- Epidemiology
Background:
- Apolipoproteins are established biomarkers for cardiovascular and cerebrovascular diseases.
- Their prognostic potential in infectious diseases, including COVID-19, is increasingly recognized.
- Understanding these roles is crucial for managing COVID-19 patient outcomes.
Purpose of the Study:
- To evaluate the prognostic value of apolipoproteins for COVID-19 severity and mortality.
- To assess the predictive utility of ApoliproteinA1 (ApoA1) and ApoliproteinB (ApoB) levels and their ratio in COVID-19 patients.
Main Methods:
- A systematic review and meta-analysis of observational studies was conducted.
- 12 cohort studies involving 3580 patients were analyzed.
- Newcastle-Ottawa scale assessed study quality; Egger's test evaluated publication bias.
Main Results:
- Low ApoliproteinA1 (ApoA1) and ApoliproteinB (ApoB) levels were associated with an increased risk of severe COVID-19.
- Low ApoA1 levels significantly correlated with higher all-cause mortality.
- The ApoB/ApoA1 ratio did not demonstrate a statistically significant association with COVID-19 severity.
Conclusions:
- Sufficient levels of ApoA1 and ApoB may confer protection against COVID-19 severity.
- The ApoB/ApoA1 ratio lacks predictive utility for COVID-19 severity.
- Apolipoprotein levels warrant further investigation as prognostic markers in COVID-19.
Introduction:
Apolipoproteins are predictive biomarkers for cardiovascular, neoplasms and cerebrovascular diseases and are postulated as prognostic biomarkers in infectious diseases, as COVID-19. Thus, we assessed the prognosis value of apolipoproteins for COVID-19 severity and mortality.
Methods:
We conducted a systematic review and meta-analysis using observational studies that reported the association between apolipoproteins and severity or mortality in COVID-19 patients. Newcastle-Ottawa was used for the quality assessment of included studies. Effects measurements were shown as odds ratios (ORs) with 95% confidence intervals (CIs), and Egger-test was developed for assessing the risk of bias publication.
Results:
We analyzed 12 cohort studies (n = 3580). Patients with low ApoliproteinA1 (ApoA1) (OR 0.35; 95%CI 0.24 to 0.49; P < 0.001) and ApoliproteinB (ApoB) (OR = 0.78; 95%CI 0.69 to 0.87; P < 0.001) values had a higher risk of developing severe disease. ApoB/ApoA1 ratio showed no statistically significant association with higher odds of severity. Low ApoA1 levels were associated with higher odds of all-cause mortality (OR = 0.34; 95%CI 0.20 to 0.57; P < 0.001). ApoB values showed no statistically significant association with a high risk of all-cause mortality.
Conclusion:
We suggest that adequate levels of ApoA1 and ApoB can be a protective factor for severity in COVID-19, and ApoB/ApoA1 ratio did not show predictive utility for severity.
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