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Low prevalence of glucose intolerance in racially mixed children with cystic fibrosis.
Alves, Crésio; Lima, Daniela S; Cardeal, Mauricio; Santana, Angelica.
Afiliação
  • Alves C; Federal University of Bahia, Salvador-Bahia, Brazil. cresio.alves@uol.com.br
Pediatr Diabetes ; 11(7): 493-7, 2010 Nov.
Article em En | MEDLINE | ID: mdl-20149123
OBJECTIVE: To evaluate glucose tolerance in racially mixed Brazilian youth with cystic fibrosis (CF). METHODS: Cross-sectional study conducted between August and September 2007, at a reference service for CF, evaluating: glycated hemoglobin (HbA1c), blood glucose, and insulin levels, before and 2 h after a glucose overload. RESULTS: There were 46 patients aged between 6 yr and 16 yr and 2 months (median: 9 yr and 10 months) of whom 64% were boys. Of these, 26% were Whites; 54.4% Mulattoes; and 19.6% Blacks. HbA1c was normal in all patients. Only one participant (12-yr old) had glucose intolerance. Insulin levels ranged from 1 to 23 µIU/mL (median: 4.5 µIU/mL) at baseline and from 3.2 to 192.1 µIU/mL (median: 11 µIU/mL) after a glucose overload. Insulin resistance evaluated by the HOMA index, stratified by sex and age, was present in three patients. The ΔF508 mutation was present in only 4.3% of the sample, all of them being heterozygous. CONCLUSIONS: The low prevalence of carbohydrate intolerance in this population is probably a result of their young age. Another possibility is the low frequency of the ΔF508 mutation. Although not conclusive, these data suggest that in addition to age, the genotype:phenotype ratio may influence the development of glucose intolerance in patients with CF.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Intolerância à Glucose / Fibrose Cística Tipo de estudo: Observational_studies / Prevalence_studies / Risk_factors_studies Limite: Adolescent / Child / Female / Humans / Male País/Região como assunto: America do sul / Brasil Idioma: En Revista: Pediatr Diabetes Assunto da revista: ENDOCRINOLOGIA Ano de publicação: 2010 Tipo de documento: Article País de afiliação: Brasil País de publicação: Dinamarca

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Intolerância à Glucose / Fibrose Cística Tipo de estudo: Observational_studies / Prevalence_studies / Risk_factors_studies Limite: Adolescent / Child / Female / Humans / Male País/Região como assunto: America do sul / Brasil Idioma: En Revista: Pediatr Diabetes Assunto da revista: ENDOCRINOLOGIA Ano de publicação: 2010 Tipo de documento: Article País de afiliação: Brasil País de publicação: Dinamarca