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Article type: Research Article
Authors: Kiesewetter, H.; * | Jung, F. | Gerhards, M. | Roggenkamp, H.G.
Affiliations: Department of Clinical Haemostasiology and Transfusion Medicine, University of Saarland, Homburg/Saar, and Centre for Vascular and Circulatory Diseases, F.R.G.
Correspondence: [*] Correspondence to Priv. Doz. Dr. med. Dr.-Ing. H. Kiesewetter, Department of Clinical Haemostasiology
Note: [] Accepted by: Editor J.A. Dormandy (Received in final form by Executive Editorial Office 13.7.1987)
Abstract: Metformin was added to blood samples taken from 10 patients with type-IIb diabetes, giving final contrations of 1,3, and 8 mg metformin/l. The yield shear stress of the blood, the erythrocyte rigidity and aggregration, and the plasma viscosity and fibrinogen concentration were determined under the influence of metformin in comparison with untreated control samples. Concentrations of 1 and 3 mg metformin/l brought about a distinct and dose-dependent reduction in the aggregration tendency of the erythrocytes, and to a smaller extent in their deformability, which led to a decrease in the yield shear stress. These effects could no longer be observed at a concentration of 8 mg/l. There was no apparent effect on plasma viscosity. This indicates the possibility that metformin, in addition to its antihyperglycaemic action, also has favourable haemorheological properties.
Keywords: Diabetes mellitus, Metformin, Rheology
DOI: 10.3233/CH-1987-7606
Journal: Clinical Hemorheology and Microcirculation, vol. 7, no. 6, pp. 781-791, 1987
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