Risk for cardiovascular autonomic neuropathy is associated with the HLA-DR3/4 phenotype in type I diabetes mellitus.
Ann Intern Med
; 116(7): 544-9, 1992 Apr 01.
Article
in En
| MEDLINE
| ID: mdl-1543308
ABSTRACT
OBJECTIVE:
To identify risk factors for the development of cardiovascular autonomic neuropathy in patients with juvenile-onset type I diabetes mellitus.DESIGN:
Cross-sectional examination of an inception cohort 15 to 21 years after the onset of diabetes.SETTING:
Outpatient diabetes clinic. PATIENTS Seventy-nine patients with type I diabetes who experienced onset of disease before 21 years of age and who were followed for 15 to 21 years. MEASUREMENTS Autonomic nerve function was evaluated in all patients using deep breathing and tilt tests. On the basis of these tests, an index of cardiovascular autonomic neuropathy was derived and patients were classified as having intact, mildly impaired, or significantly impaired autonomic function.RESULTS:
The group with significantly impaired function had a higher mean hemoglobin A1 at the time of examination than the group without impairment, yet the groups did not differ regarding glycemic control during the first decade of diabetes. The HLA-DR3/4 phenotype was present in more than 50% of the patients with significant autonomic dysfunction and conferred relative odds of 6.2 (95% CI, 1.7 to 23.3) for the development of autonomic neuropathy when compared with other HLA-DR phenotypes. Sex, percent ideal body weight, and smoking did not have a statistically significant effect on the development of autonomic neuropathy.CONCLUSIONS:
The development of cardiovascular autonomic neuropathy in type I diabetes mellitus is strongly associated with the HLA-DR3/4 phenotype. Thus, genetic predisposition may play an important role in the development of this complication.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Autonomic Nervous System Diseases
/
HLA-DR3 Antigen
/
HLA-DR4 Antigen
/
Diabetes Mellitus, Type 1
/
Diabetic Neuropathies
Type of study:
Diagnostic_studies
/
Etiology_studies
/
Incidence_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limits:
Adult
/
Female
/
Humans
/
Male
Language:
En
Journal:
Ann Intern Med
Year:
1992
Document type:
Article