DIABETES-MELLITUS IN CHILDREN SUFFERING FROM BETA-THALASSEMIA

被引:18
|
作者
ELHAZMI, MAF
ALSWAILEM, A
ALFAWAZ, I
WARSEY, AS
ALSWAILEM, A
机构
[1] MINIST HLTH,RIYADH,SAUDI ARABIA
[2] KING SAUD UNIV,COLL MED,DEPT PAEDIAT,RIYADH,SAUDI ARABIA
[3] KING SAUD UNIV,COLL SCI,DEPT BIOCHEM,RIYADH 11451,SAUDI ARABIA
[4] MATERN & CHILDREN HOSP,RIYADH,SAUDI ARABIA
关键词
D O I
10.1093/tropej/40.5.261
中图分类号
R72 [儿科学];
学科分类号
100202 ;
摘要
Insulin-dependent diabetes mellitus (IDDM) is a frequent complication in patients with beta-thalassaemia major. It is believed to be a consequence of the damage inflicted by iron overload to the pancreatic beta-cell. Liver disorders and genetic influences seem to be additional predisposing factors to diabetes mellitus in patients with beta-thalassaemia. Ethnic variations are frequently reported on prevalence and complications of diabetes mellitus in the beta-thalassaemia patients. We investigated 50 Saudi children (<15 years) with beta-thalassaemia major and 50 beta-thalassaemia minor, and age- and sex-matched controls for the prevalence of diabetes mellitus, and its relation to hitherto claimed predisposing factors. Easting blood glucose, plasma insulin level, liver function tests, plasma ferritin, iron, and transferrin were assessed in each patient and glucose tolerance was evaluated. Results in patients with beta-thalassaemia major were compared with those obtained for beta-thalassaemia minor and the controls. The results showed moderate elevation of ferritin level in the majority of the beta-thalassaemia major despite desferroxamine therapy. Either hyperinsulinaemia or hypoinsulinaemia was encountered in the majority of these patients. The prevalence of diabetes mellitus was 6 per cent compared to 2 per cent in the beta-thalassaemia minor and normal children. Impaired glucose tolerance (IGT) occurred at a significantly higher (24 per cent) frequency in the beta-thalassaemia major compared to 2 and 0 per cent in the beta-thalassaemia minor patients and normal controls, respectively. The prevalence of diabetes mellitus was significantly lower in the Saudi thalassaemic patients compared to the results obtained from patients of other ethnic groups reported in literature. Liver function abnormalities were more frequent in this group than in the beta-thalassaemia minor and the controls. It appears from the inference of our results that combinations of factors including iron overload and liver damage, predispose the beta-thalassaemia major patients to beta-cell damage and, hence, to impaired glucose tolerance.
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页码:261 / 266
页数:6
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