Frequency of islet cell autoantibodies (IA-2 and GAD) in young Brazilian type 1 diabetes patients
Braz. j. med. biol. res
;
32(10): 1195-8, Oct. 1999. tab
Article
Dans Anglais
| LILACS
| ID: lil-252267
RESUMO
Type 1 diabetes, as an autoimmune disease, presents several islet cell-specific autoantibodies such as islet cell antibody (ICA), anti-insulin, anti-glutamic acid decarboxylase (GAD) and the antibody (Ab) against tyrosine phosphatase (PTP)-like protein known as ICA-512 (IA-2). In order to determine the frequency of the anti-GAD and anti-IA-2 autoantibodies in Brazilian type 1 diabetes patients we studied 35 diabetes mellitus (DM) type 1 patients with recent-onset disease 12 months and 37 type 1 diabetes patients with long-duration diabetes 12 months who were compared to 12 children with normal fasting glucose. Anti-GAD65 and anti-IA-2 autoantibodies were detected with commercial immunoprecipitation assays. The frequency of positive results in recent-onset DM type 1 patients was 80.0 percent for GADAb, 62.9 percent for IA-2Ab and 82.9 percent for GADAb and/or IA-2Ab. The long-duration type 1 diabetes subjects presented frequencies of 54.1 percent for GADAb and IA-2Ab, and 67.5 percent for GAD and/or IA-2 antibodies. The control group showed no positive cases. Anti-GAD and IA-2 assays showed a high frequency of positivity in these Brazilian type 1 diabetes patients, who presented the same prevalence as a Caucasian population
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Autoanticorps
/
Ilots pancréatiques
/
Protein Tyrosine Phosphatases
/
Diabète de type 1
/
Glutamate decarboxylase
/
Anticorps anti-insuline
Type d'étude:
Facteurs de risque
Limites du sujet:
Adolescent
/
Enfant
/
Femelle
/
Humains
Pays comme sujet:
Amérique du Sud
/
Brésil
langue:
Anglais
Texte intégral:
Braz. j. med. biol. res
Thème du journal:
Biologie
/
Médicament
Année:
1999
Type:
Article
Pays d'affiliation:
Brésil
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