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
in English
| 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
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Autoantibodies
/
Islets of Langerhans
/
Protein Tyrosine Phosphatases
/
Diabetes Mellitus, Type 1
/
Glutamate Decarboxylase
/
Insulin Antibodies
Type of study:
Risk factors
Limits:
Adolescent
/
Child
/
Female
/
Humans
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
Braz. j. med. biol. res
Journal subject:
Biology
/
Medicine
Year:
1999
Type:
Article
Affiliation country:
Brazil
Similar
MEDLINE
...
LILACS
LIS