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Exploring the association between hypocretin-1 levels and bone mineral content in patients with narcolepsy: A cross-sectional study.
Reis, Maria Júlia Figueiró; Truzzi, Giselle de Martin; Naufel, Maria Fernanda; Coelho, Fernando Morgadinho Santos.
Afiliación
  • Reis MJF; Departamanto de Psicobiologia, Universidade Federal de São Paulo, São Paulo, Brazil.
  • Truzzi GM; Departamanto de Psicobiologia, Universidade Federal de São Paulo, São Paulo, Brazil.
  • Naufel MF; Departamanto de Psicobiologia, Universidade Federal de São Paulo, São Paulo, Brazil.
  • Coelho FMS; Departamanto de Psicobiologia, Universidade Federal de São Paulo, São Paulo, Brazil; Departamento de Neurologia e Neurocirurgia, Universidade Federal de São Paulo, São Paulo, Brazil. Electronic address: fernandomorgadinho@hotmail.com.
Sleep Med ; 121: 375-378, 2024 Sep.
Article en En | MEDLINE | ID: mdl-39084148
ABSTRACT

INTRODUCTION:

Recent studies suggest the existence of a physiologic basis for bone rarefaction and increased risk for fractures. This study aimed to address anthropometric differences between patients with narcolepsy type 1 (NT1) and type 2 (NT2) and discrepancies in bone mineral content (BMC) as a function of hypocretin-1 (Hcrt-1) measured in cerebrospinal fluid (CSF).

METHODS:

We have evaluated 31 adult patients (aged 18-65 years) with NT1 and 18 patients with NT2, comparing the groups in terms of anthropometric variables - body mass index (BMI) and waist-to-hip ratio (WHR) - and percentage of bone mineral content (%BMC), measured by bioelectrical impedance analysis (BIA). Statistical analysis assessed the effects of Hcrt-1 levels on CSF, dietary intake, and medication use over these variables. Statistical significance was achieved with a confidence interval of 95 % and p < 0.05.

RESULTS:

Patients with NT1 presented with higher BMI (32.04 ± 6.95 vs. 25.38 ± 4.26 kg/m2; p < 0.01) and WHR (0.89 ± 0.09 vs. 0.83 ± 0.09; p = 0.02) compared to NT2, in detriment of %BMC, which was lower for NT1 (4.1 ± 1.02 vs. 4.89 ± 0.59; p < 0.01). Hcrt-1 in CSF showed a positive correlation with %BMC (r = +0.48, p < 0.01) and a negative correlation with anthropometric features (BMI r = -0.54, p < 0.01; WHR r = -0.37, p = 0.01). There was a correlation between WHR and diary caloric intake (r = +0.42, p < 0.01).

CONCLUSION:

The evaluation of patients with narcolepsy presupposes a syndromic approach comprising symptoms that go far beyond excessive daytime sleepiness. The integrated follow-up, including nutritional profile and anthropometric features, should add value in reducing morbidity in this population.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Índice de Masa Corporal / Densidad Ósea / Orexinas / Narcolepsia Límite: Adolescent / Adult / Aged / Female / Humans / Male / Middle aged Idioma: En Revista: Sleep Med Asunto de la revista: NEUROLOGIA / PSICOFISIOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Países Bajos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Índice de Masa Corporal / Densidad Ósea / Orexinas / Narcolepsia Límite: Adolescent / Adult / Aged / Female / Humans / Male / Middle aged Idioma: En Revista: Sleep Med Asunto de la revista: NEUROLOGIA / PSICOFISIOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Países Bajos