Peptide YY, Cholecystokinin, Insulin and Ghrelin Response to Meal did not Change, but Mean Serum Levels of Insulin is Reduced in Children with Prader-Willi Syndrome
Journal of Korean Medical Science
;
: 436-441, 2007.
Artigo
em Inglês
| WPRIM
| ID: wpr-109323
ABSTRACT
Prader-Willi syndrome (PWS) is a contiguous gene syndrome characterized by uncontrollable eating or hyperphagia. Several studies have confirmed that plasma ghrelin levels are markedly elevated in PWS adults and children. The study of anorexigenic hormones is of interest because of their regulation of appetite by negative signals. To study the pattern and response of the anorexigenic hormones such as cholecystokinin (CCK) and peptide YY (PYY) to a meal in PWS, we measured the plasma CCK, PYY, ghrelin and serum insulin levels in PWS patients (n=4) and in controls (n=4) hourly for a day, and analyzed hormone levels and hormonal responses to meals. Repeated measures of ANOVA of hormone levels demonstrated that only insulin levels decreased (p=0.013) and CCK (p=0.005) and ghrelin (p=0.0007) increased in PWS over 24 hr. However, no significant group x time interactions (ghrelin p=0.89, CCK p=0.93, PYY p=0.68 and insulin p=0.85) were observed; in addition, there were no differences in an assessment of a three-hour area under the curve after breakfast. These results suggest that the response pattern of hormones to meals in PWS patients parallels that of normal controls. In addition, the decrease of insulin levels over 24 hr, in spite of obesity and elevated ghrelin levels, suggests that the baseline insulin level, not the insulin response to meals, may be abnormal in patients with PWS.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Síndrome de Prader-Willi
/
Fatores de Tempo
/
Biópsia
/
Peso Corporal
/
Colecistocinina
/
Índice de Massa Corporal
/
Área Sob a Curva
/
Peptídeo YY
/
Hormônios Peptídicos
/
Grelina
Tipo de estudo:
Estudo prognóstico
Limite:
Adolescente
/
Criança
/
Humanos
/
Masculino
Idioma:
Inglês
Revista:
Journal of Korean Medical Science
Ano de publicação:
2007
Tipo de documento:
Artigo
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