Methylphenidate In Children With Monogenic Obesity Due To Lepr Or Mc4r Deficiency Improves Feeling Of Satiety And Reduces Bmi-Sds-A Case Series
PEDIATRIC OBESITY(2020)
摘要
Background: The clinical phenotype of patients with monogenic obesity due to mutations in the leptin receptor (LEPR) or melanocortin 4 receptor (MC4R) gene is characterized by impaired satiety and hyperphagia, leading to extreme, sometimes life-threatening weight gain.Subjects/methods: In a case series, we analysed the effect of an off-label methylphenidate (MPH) use for 1 year as an individual treatment approach on eating behaviour (Child Eating Behaviour Questionnaire [CEBQ]), appetite (visual analogue scales) and body mass index (BMI) trajectories in five patients with severe obesity due to mutations in the LEPR (n = 3) or MC4R (n = 2) gene.Results: After 1 year use of MPH (20 mg/day divided in two to three doses), BMI (Delta BMIT0-T1 (x) over bar: -0.7 +/- 0.9 kg/m(2)), BMI standard deviation score (SDS) (Delta BMI-SDST0-T1 (x) over bar: -0.32 +/- 0.20), and %BMIP95 (Delta%BMIP95(T0-T1) (x) over bar: -6.6 +/- 7.8%) decreased. BMI-SDS velocity decreased from +0.17 +/- 0.22 to -0.30 +/- 0.20. Appetite and CEBQ subscale scores for "food responsiveness" and "enjoyment of food" decreased. We observed adverse effects with increase in self-reported frequency of disordered sleep, nervousness, hyperactivity, and tics.Conclusions: The observed decrease in BMI trajectories with MPH use for one year is clinically meaningful in this group of patients, since the natural course would have been associated with a pronounced increase in BMI, leading to comorbidities and complications over time.
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关键词
central nervous system, MC4R mutation, methylphenidate, monogenic obesity, LEPR mutation
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