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Severe von Willebrand's disease: SDS agarose multimer analysis
R Redaelli1, L Pezzetti, T Caimi
1Department of Haematology Talamona, Ospedale Ca Granda Niguarda, Milan, Italy.
Haemostasis
|January 1, 1987
Summary
Severe von Willebrand
Area of Science:
- Hematology
- Biochemistry
- Molecular Biology
Background:
- Severe von Willebrand's disease (vWD) presents challenges in analyzing von Willebrand factor (vWF) due to low protein levels.
- Previous studies using radiocrossed immunoelectrophoresis (RCIE) indicated varied vWF multimeric patterns in severe vWD.
Observation:
- Cryoprecipitate and vWF concentrate from a severe vWD patient were analyzed.
- RCIE showed predominantly anodic vWF forms.
- Sodium dodecylsulfate (SDS) agarose gel electrophoresis revealed main vWF bands, an increase in smaller forms, and reduced definition of minor bands.
Findings:
- SDS agarose analysis of vWF concentrate from severe vWD patients suggests potential structural abnormalities.
- The observed increase in smaller vWF forms and decreased definition of minor bands indicate altered multimeric composition.
Implications:
- Analyzing vWF cryoprecipitates may be a viable method to detect vWF multimers in severe vWD.
- This approach could help elucidate the variability of vWF multimeric patterns in severe forms of the disease.