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  • Title: Serum Klotho is correlated to cardiovascular complications of chronic kidney disease in children.
    Author: Okarska-Napierała M, Skrzypczyk P, Pietrzak R, Stelmaszczyk-Emmel A, Górska E, Werner B, Pańczyk-Tomaszewska M.
    Journal: Clin Nephrol; 2020 Oct; 94(4):163-172. PubMed ID: 32729817.
    Abstract:
    AIM: Aim of the study was to investigate soluble Klotho (sKl), fibroblast growth factor 23 (FGF23) concentrations, and their correlations with cardiovascular complications in children with CKD. MATERIALS AND METHODS: 38 children with CKD stages 2 - 5 were compared to 38 healthy controls in terms of: plasma FGF23, serum sKl, peripheral and central blood pressure, arterial stiffness (pulse wave velocity - (PWV)), carotid intima media thickness (cIMT), left ventricular mass index (LVMI), and diastolic function. Correlations between FGF23, sKl, and cardiovascular parameters were investigated. RESULTS: The CKD group was characterized by higher FGF23, lower sKl concentrations, higher peripheral and central blood pressure, arterial stiffness, cIMT, left ventricular mass index, and decreased E/A ratio compared to the control group. In CKD children, sKl correlated negatively with diastolic blood pressure (DBP), mean arterial pressure (MAP), central systolic, diastolic, and mean blood pressure, PWV, and LVMI. In multivariate analysis, higher sKl was a significant predictor of lower peripheral and central DBP and lower LVMI and E/A, whereas higher FGF23 was a predictor of higher of LVMI. CONCLUSION: (1) In children with CKD, decreased sKl might be a marker of elevated central blood pressure. (2) Both sKl decrease and FGF23 increase could possibly contribute to left ventricular hypertrophy in this group of patients.
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