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Article type: Research Article
Authors: Muller, S.a | Donner, M.a | Drouin, P.b | Stoltz, J.F.a
Affiliations: [a] INSERM U 284. CO 10, Plateau de Brabois, 54511 Vandoeuvre les Nancy, France | [b] Service de Médecine G du CHU de Nancy, Hôpital Jeanne d’Arc, B.P. 303, 54201 Dommartin les Toul, France
Note: [] Accepted by: Editor L. Dintenfass
Abstract: A molecular rheological parameter (lipid fluidity) of erythrocyte membrane was investigated in diabetic patients by means of fluorescence polarization method using two fluorescent probes: DPH and TMA–DPH which are localized in different lipid compartments of red cell membrane. Other rheological parameters: plasma viscosity, red cell aggregation and filterability were simultaneously determined. Despite significant alterations in plasma viscosity and red cell aggregation, no important modifications in the membrane fluidity was observed in diabetic patients. The only significant change suggesting an increase in membrane fluidity was observed with TMA–DPH as fluorescent probe in diabetic patients with good metabolic control. Some of the possible factors explaining our data and the opposite results previously reported are discussed with regard to both standardization of methods and metabolic aspects in diabetic patients.
Keywords: Diabetes, lipid fluidity, erythrocyte membrane, fluorescence polarization, DPH, TMA-DPH
DOI: 10.3233/CH-1987-7407
Journal: Clinical Hemorheology and Microcirculation, vol. 7, no. 4, pp. 619-626, 1987
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