Finotti P, Piccoli A, Carraro P. Alteration of plasma proteinase-antiproteinase system in type 1 diabetic patients. Influence of sex and relationship with metabolic control.
Diabetes Res Clin Pract 1992;
18:35-42. [PMID:
1280191 DOI:
10.1016/0168-8227(92)90053-t]
[Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The aim of the present study was to investigate whether or not alterations of the plasma proteinase-antiproteinase system were present in type 1 (insulin-dependent) diabetic patients and, if so, whether or not they were related to sex, age at onset and duration of the disease as well as to short- and long-term diabetic control. The plasma concentration of trypsin-like activity and two of the most important plasma serine proteinase inhibitors, alpha 1-antitrypsin and alpha 2-macroglobulin, were determined in 95 type 1 diabetic and 67 control subjects. The plasma concentration of alpha 1 antitrypsin was found to be markedly decreased (P < 0.001), whereas plasma alpha 2-macroglobulin and trypsin-like activity were increased in diabetics compared to controls (P = 0.009 and < 0.001, respectively). Sex also influenced the values of both proteinase inhibitors in diabetics, women showing higher values of plasma alpha 1-antitrypsin (P = 0.004) than men. In women, HbA1c was also positively correlated with blood glucose (P < 0.001), daily insulin dosage (P < 0.001), and trypsin-like activity of plasma (P = 0.02). On the contrary, in men, HbA1c appeared to be negatively correlated with plasma alpha 2-macroglobulin (P = 0.02). In addition to sex, age at onset (but not duration) of the disease revealed differences in plasma alpha 1-antitrypsin among diabetics, the lowest mean value of this inhibitor being present in men with age at onset below 15 years, who also showed a significant negative correlation between this inhibitor and HbA1c (P = 0.01).(ABSTRACT TRUNCATED AT 250 WORDS)
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