Review shows that lipid disorders are associated with endothelial but not renal dysfunction in children

AIM: We undertook this review to assess the effects of lipid metabolism abnormalities on endothelial and renal function in children. METHODS: A search of relevant literature published in English from January 1988 to May 2018 was performed, and this included randomised controlled trials, observational cohort studies, systematic reviews and case reports. RESULTS: The search process identified 2324 relevant studies and 29 were finally included. Noninvasive ultrasound markers of endothelial dysfunction, such as flow-mediated dilation and carotid intima-media thickness, were impaired in children with dyslipidaemia. Dietary interventions and statin therapy reversed the effects of dyslipidaemia on endothelial function in children. Most data from adult studies failed to prove a causative relationship between dyslipidaemia and renal disease progression or a beneficial effect of lipid-lowering treatment on renal outcomes. The limited paediatric data did not indicate dyslipidaemia as an independent risk factor for renal dysfunction, which was mainly estimated by cystatin C levels or proteinuria. Therefore, further investigation is needed to clarify a potential relationship. CONCLUSION: In view of limited available paediatric evidence, dyslipidaemia may be adversely associated with endothelial function. However, the association between lipid metabolism disorders and renal function in childhood needs to be further investigated.