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Arq. bras. endocrinol. metab ; 55(8): 653-660, nov. 2011. tab
Article Dans Anglais | LILACS | ID: lil-610469

Résumé

OBJECTIVE: To analyze traits of metabolic syndrome (MetS) in medulloblastoma survivors. SUBJECTS AND METHODS: Sixteen childhood medulloblastoma survivors aged 18.0 (4.4) years, with history of craniospinal radiation therapy (RT) were compared with nine control subjects matched by age, gender, and body mass index, according to fat distribution, metabolic and cardiovascular variables. RESULTS: Medulloblastoma patients showed increases in waist circum-ference and its relationships (all p < 0.05), and HOMA1-IR (p = 0.006), which were modified by growth hormone (GH) secretion status. However, these increases were within normal range. CONCLUSIONS: Adolescent and young adult survivors of medulloblastoma showed centripetal fat deposition and decreased insulin sensitivity, associated with GH status. Pediatric brain tumor survivors following RT should be monitored for the diagnosis of MetS traits predisposing to cardiovascular disease.


OBJETIVO: Analisar características que predispõem para síndrome metabólica (SM) em sobreviventes de meduloblastoma. SUJEITOS E MÉTODOS: Dezesseis sobreviventes de meduloblastoma pediátrico, 18,0 (4,4) anos, história de radioterapia (RT) cranioespinhal, comparados a nove controles pareados por idade, sexo e índice de massa corporal, de acordo com distribuição de gordura, variáveis metabólicas e cardiovasculares. RESULTADOS: Pacientes com meduloblastoma mostraram aumento da cintura e relações (todos p < 0,05) e HOMA1-IR (p = 0,006), modificados pela secreção do hormônio de crescimento (GH), mas dentro dos limites de normalidade. CONCLUSÕES: Sobreviventes adolescentes e adultos jovens de meduloblastoma apresentaram deposição centrípeta de gordura e diminuição da sensibilidade à insulina, associados ao estado do GH. Sobreviventes de tumor cerebral pediátrico que receberam RT devem ser monitorados para diagnosticar fatores para SM predispondo à doença cardiovascular.


Sujets)
Adolescent , Femelle , Humains , Mâle , Jeune adulte , Adiposité , Tumeurs du cerveau/complications , Irradiation crânienne/effets indésirables , Insulinorésistance , Médulloblastome/complications , Syndrome métabolique X/étiologie , Tumeurs du cerveau/radiothérapie , Maladies cardiovasculaires/prévention et contrôle , Méthodes épidémiologiques , Hormone de croissance humaine/métabolisme , Médulloblastome/radiothérapie , Syndrome métabolique X/diagnostic , Survivants , Résultat thérapeutique
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