Elevation of serum thioredoxin levels in patients with type 2 diabetes.
To evaluate the clinical significance of thioredoxin in diabetic patients, serum thioredoxin levels measured with a recently established sandwich enzyme-linked immunosorbent assay kit were compared with clinical laboratory data and complications in 174 patients with Type 2 diabetes. Thioredoxin levels were significantly higher in diabetic patients (mean value, 38 ng/ml) than in healthy controls (21 ng/ml) (p < 0.05). Fasting blood sugar and hemoglobin A1c did not correlate with thioredoxin. Plasma non-esterified fatty acids levels were significantly higher in patients with higher thioredoxin levels (>or= 40 ng/ml) than in those with lower thioredoxin levels (< 40 ng/ml) (p < 0.001). There was a significant correlation both between thioredoxin and non-esterified fatty acids in patients with diet/exercise therapy (p < 0.01) and between thioredoxin and fasting immunoreactive insulin in those treated with diet/exercise or oral hypoglycemic agents (p < 0.05). Thioredoxin did not correlate with diabetic complications. In conclusion, serum thioredoxin levels may reflect the status of insulin resistance in Type 2 diabetic patients.
Kakisaka
Y
Y
Third Department of Internal Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan. yuko@sun.kpu-m.ac.jp
Nakashima
T
T
Sumida
Y
Y
Yoh
T
T
Nakamura
H
H
Yodoi
J
J
Senmaru
H
H
D000368:Aged; D001786:Blood Glucose / Q000378:metabolism; D003924:Diabetes Mellitus, Type 2 / Q000097:blood* / Q000188:drug therapy / Q000628:therapy; D004797:Enzyme-Linked Immunosorbent Assay; D005081:Exercise Therapy; D005230:Fatty Acids, Nonesterified / Q000097:blood; D005260:Female; D006442:Glycated Hemoglobin / Q000378:metabolism; D006801:Humans; D007004:Hypoglycemic Agents / Q000627:therapeutic use; D007328:Insulin / Q000097:blood / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D013879:Thioredoxins / Q000097:blood*
D001786:Blood Glucose; D005230:Fatty Acids, Nonesterified; D006442:Glycated Hemoglobin; D007004:Hypoglycemic Agents; D007328:Insulin; D013879:Thioredoxins