The safety, tolerability, and efficacy of a 12-wk treatment with pravastatin, 5, 10, and 20 mg/d, was evaluated in 72 children with heterozygous familial hypercholesterolemia (FH) in a double-blind, randomized and placebo-controlled study. The results show that pravastatin was well tolerated and that adverse events were mild and equally distributed among the three treatment groups. Plasma total and LDL cholesterol levels were significantly reduced in all pravastatin treatment groups, in comparison with the control group; -24.6% (-28.1 to 21.0) and -32.9% (-37.0 to -28.6), for mean change and 95% confidence interval, respectively. In four children plasma LDL cholesterol levels were reduced within normal limits for sex and age. HDL cholesterol increased in the pravastatin 20-mg group, +10.8% (+3.4 to +18.8), whereas plasma apo B100 and very LDL (VLDL) cholesterol levels were reduced within all pravastatin-treated groups -26.8% (-31.2 [corrected] to -21.7) and -24.5% (-35.0 to -12.3). These data show that short-term pravastatin treatment of children with FH is safe and effective, although long-term dose titration studies with 3-hydroxy-3-methylglutaryl-CoA reductase inhibitors need to be performed, to reduce plasma LDL cholesterol levels below a predefined level. The results of these studies have to be awaited before new treatment strategies are to be considered in these children.
Parents of children with chronic disorders have an impaired health-related quality of life (HRQoL) compared to parents of healthy children. Remarkably, parents of children with a metabolic disorder reported an even lower HRQoL than parents of children with other chronic disorders. Possibly, the uncertainty about the course of the disease and the limited life expectancy in many metabolic disorders are important factors in the low parental HRQoL. Therefore, we performed a cross-sectional study in parents of children with phenylketonuria (PKU, OMIM #261600) and galactosemia (OMIM #230400), metabolic disorders not affecting life expectancy, in order to investigate their HRQoL compared to parents of healthy children and to parents of children with other metabolic disorders. A total of 185 parents of children with PKU and galactosemia aged 1–19 years completed two questionnaires. Parents of children with PKU or galactosemia reported a HRQoL comparable to parents of healthy children and a significantly better HRQoL than parents of children with other metabolic disorders. Important predictors for parental mental HRQoL were the psychosocial factors emotional support and loss of friendship. As parental mental functioning influences the health, development and adjustment of their children, it is important that treating physicians also pay attention to the wellbeing of the parents. The insight that emotional support and loss of friendship influence the HRQoL of the parents enables treating physicians to provide better support for these parents.
A comparison of the clinical presentation, disease course and results of laboratory and imaging studies of all patients so far published with a NDUFS4 mutation are presented. This reveals marked clinical heterogeneity, even in patients with the same genotype.
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