Transforming growth factor β1 at clinical onset of Type 1 diabetes mellitus. A pilot study.

Autor: Flores, L., Näf, S., Hernáez, R., Conget, I., Gomis, R., Esmatjes, E.
Předmět:
Zdroj: Diabetic Medicine; Aug2004, Vol. 21 Issue 8, p818-822, 5p
Abstrakt: The aims of the study were to determine whether transforming growth factor β1 TGF-β1 levels are raised at diagnosis of Type 1 diabetes mellitus and are related to blood glucose. Fourteen patients (mean age 24.3 ± 4.9 years) admitted to hospital for onset of Type 1 diabetes were studied. On the first day of hospitalization, before insulin therapy, and at 1, 4 and 16 weeks, fasting blood glucose, HbA1c, lipid profile and TGF-β1 levels and TGF-β1 levels in 24-h urine were determined. The control group included 14 non-diabetic subjects with similar characteristics to those of the diabetic group. Plasma and urinary TGF-β1 levels were significantly lower in controls (4.7 (1.6–6.8) ng/ml P < 0.001; 5.7 (1.5–8.5) ng/mg urinary creatinine, P < 0.01) than in patients with Type 1 diabetes mellitus [10.5 (1.8–24.9) ng/ml; 10.1 (4.2–29.8) ng/mg urinary creatinine]. On study completion, HbA1c fell from 11.6 ± 2.0 to 5.4 ± 0.6% ( P < 0.001). Improved metabolic control was not associated with changes in plasma (9.4 (2.6–19.5)/5.9 (1.6–21.5)/7.0 (2.3–30.2)/10.5 (1.8–24.9) ng/ml at baseline, 1, 4 and 16 weeks, respectively) or urinary (12.0 (4.7–29.5)/10.9 (1.5–20.5)/8.7 (4.3–16.9)/10.1 (4.2–29.8) ng/mg urinary creatinine) TGF-β1 levels. A statistically significant correlation was observed between plasma TGF-β1 and insulin dosage (U/kg/day) ( r = 0.52, P = 0.037). The increased TGF-β1 production observed herein was not modulated by glycaemic reduction and could be a response to immuno-inflammatory activation present at the onset of Type 1 diabetes. Diabet. Med. (2004) [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index