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Microcirculation and hemorheology in NIDDM patients
M Catalano1, M Tomasini, M Annoni
1Centro di Ricerca per la Prevenzione e la Terapia della Patologia Vascolare Periferica, Università di Milano, Italy.
Angiology
|December 1, 1990
Summary
This study investigated microcirculation in patients with non-insulin-dependent diabetes mellitus. Findings suggest microcirculatory abnormalities are independent of hemorheologic factors in these patients.
Area of Science:
- Vascular Biology
- Endocrinology
- Ophthalmology
Background:
- Non-insulin-dependent diabetes mellitus (NIDDM) is associated with microvascular complications.
- Understanding the early changes in microcirculation is crucial for managing diabetes.
- Hemorheologic factors may contribute to diabetic microangiopathy.
Purpose of the Study:
- To evaluate microcirculatory parameters in patients with NIDDM compared to healthy controls.
- To investigate the relationship between hemorheologic characteristics and microcirculatory alterations in NIDDM.
Main Methods:
- Comparison of 10 NIDDM patients and 5 matched controls.
- Assessment of hemorheologic parameters: whole blood, plasma, serum viscosity, erythrocyte filtration, and aggregation.
- Microcirculation evaluation: microalbuminuria, retinal fluorangiography, and capillaroscopy of bulbar conjunctiva and nail folds.
Main Results:
- No significant difference in hemorheologic parameters between groups.
- All NIDDM patients exhibited capillaroscopic alterations (microaneurysms, erythrocyte aggregates).
- Similar capillaroscopic alterations were observed in control subjects, suggesting independence from NIDDM and hemorheology.
Conclusions:
- Capillaroscopic abnormalities in the bulbar conjunctiva and nail folds are prevalent in NIDDM patients.
- These microcirculatory alterations appear to be independent of hemorheologic values in this cohort.
- Further research is needed to elucidate the specific mechanisms underlying these observed abnormalities.