Document Detail


High prevalence of precocious puberty and obesity in childhood narcolepsy with cataplexy.
MedLine Citation:
PMID:  23372264     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
STUDY OBJECTIVES: We analyzed the potential predictive factors for precocious puberty, observed in some cases of childhood narcolepsy with cataplexy (NC) and for obesity, a much more common feature of NC, through a systematic assessment of pubertal staging, body mass index (BMI), and metabolic/endocrine biochemical analyses.
DESIGN: Cross-sectional on consecutive recruitment.
SETTING: Hospital sleep center and pediatric unit.
PATIENTS: Forty-three children and adolescents with NC versus 52 age-matched obese children as controls.
INTERVENTIONS: N/A.
MEASUREMENTS AND RESULTS: Patients underwent clinical interview, polysomnographic recordings, cerebrospinal fluid hypocretin-1 measurement, and human leukocyte antigen typing. Height, weight, arterial blood pressure, and Tanner pubertal stage were evaluated. Plasma lipid and glucose profiles were analyzed. When an altered pubertal development was clinically suspected, plasma concentrations of hypothalamic-pituitary-gonadal axis hormones were determined. Children with NC showed a high prevalence of overweight/obesity (74%) and a higher occurrence of precocious puberty (17%) than obese controls (1.9%). Isolated signs of accelerated pubertal development (thelarche, pubic hair, advanced bone age) were also present (41%). Precocious puberty was significantly predicted by a younger age at first NC symptom onset but not by overweight/obesity or other factors. In addition, overweight/obesity was predicted by younger age at diagnosis; additional predictors were found for overweight/obesity (short disease duration, younger age at weight gain and lower high-density lipoprotein cholesterol), which did not include precocious puberty. NC symptoms, pubertal signs appearance, and body weight gain developed in close temporal sequence.
CONCLUSIONS: NC occurring during prepubertal age is frequently accompanied by precocious puberty and overweight/obesity, suggesting an extended hypothalamic dysfunction. The severity of these comorbidities and the potential related risks require a multidiagnostic approach and a tailored therapeutic management.
Authors:
Francesca Poli; Fabio Pizza; Emmanuel Mignot; Raffaele Ferri; Uberto Pagotto; Shahrad Taheri; Elena Finotti; Filippo Bernardi; Piero Pirazzoli; Alessandro Cicognani; Antonio Balsamo; Lino Nobili; Oliviero Bruni; Giuseppe Plazzi
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2013-02-01
Journal Detail:
Title:  Sleep     Volume:  36     ISSN:  1550-9109     ISO Abbreviation:  Sleep     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-02-01     Completed Date:  2013-07-22     Revised Date:  2013-08-09    
Medline Journal Info:
Nlm Unique ID:  7809084     Medline TA:  Sleep     Country:  United States    
Other Details:
Languages:  eng     Pagination:  175-81     Citation Subset:  IM    
Affiliation:
Department of Neurological Sciences, University of Bologna - IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy.
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MeSH Terms
Descriptor/Qualifier:
Body Mass Index
Child
Comorbidity
Cross-Sectional Studies
Female
Humans
Logistic Models
Luteinizing Hormone / blood
Male
Narcolepsy / epidemiology*
Obesity / epidemiology*
Prevalence
Puberty, Precocious / epidemiology*
Statistics, Nonparametric
Chemical
Reg. No./Substance:
9002-67-9/Luteinizing Hormone
Comments/Corrections
Comment In:
Sleep. 2013 Feb;36(2):161-2   [PMID:  23372260 ]

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