Correlation of the pediatric metabolic index with NAFLD or MAFLD diagnosis, and serum adipokine levels in children - 31/05/23
Highlights |
• | PMI correlated positively with NAFLD and MAFLD diagnoses. |
• | Leptin and adiponectin levels correlate with the presence of MAFLD. |
• | PMI is a potential marker of hepatic fat with or without metabolic dysfunction. |
Abstract |
Introduction |
Non-alcoholic fatty liver disease (NAFLD) is characterized by ectopic fat deposition in the liver. However, a recent classification of this condition, which also integrates the presence of coexisting metabolic disorders, termed Metabolic dysfunction Associated Fatty Liver Disease (MAFLD), has been proposed.
NAFLD is increasingly common in early childhood, partly due to the increase in metabolic disease in this age. Thus, studying hepatic steatosis in the metabolic context has become important in this population as well. However, NAFLD, and thus MAFLD, diagnosis in children is challenging by the lack of non-invasive diagnostic tools comparable to the gold standard of hepatic biopsy. Recent studies have reported that the Pediatric Metabolic Index (PMI) could be a marker of insulin resistance and abnormal liver enzymes, but its association with NAFLD, MAFLD, or altered adipokines in these conditions has not been reported. The aim of this study is to evaluate the correlation between PMI with the diagnosis of NAFLD or MAFLD, together with serum levels of leptin and adiponectin, in school-age children.
Methods |
A cross sectional study was carried out in two hundred and twenty-three children without medical history of hypothyroidism, genetic, or chronic diseases. Anthropometry, liver ultrasound, and serum levels of lipids, leptin, and adiponectin were evaluated. The children were classified as having NAFLD or non-NAFLD, and a subgroup of MAFLD in the NAFLD group was analyzed. The PMI was calculated by the established formulas for age and gender.
Results |
PMI correlated positively with the presence and severity of NAFLD (r = 0.62, p<0.001 and r = 0.79, p<0.001 respectively) and with the presence of MAFLD (r = 0.62; p<0.001). Also, this index correlated positively with serum leptin levels (r = 0.66; p<0.001) and negatively with serum adiponectin levels (r= -0.65; p<0.001). PMI showed to be a good predictor for diagnosing NAFLD in school-age children when performing a ROC curve analysis (AUROC=0.986, p< 0.0001).
Conclusion |
PMI could be a useful tool for the early diagnosis of NAFLD or MAFLD in children. However, future studies are necessary to establish validated cut-off points for each population.
Il testo completo di questo articolo è disponibile in PDF.Keywords : Metabolic-associated fatty liver disease, Non-alcoholic fatty liver disease, Pediatric metabolic index
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Vol 47 - N° 6
Articolo 102137- Giugno 2023 Ritorno al numero
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