Platelet membrane defects in fawn hooded bleeder rats.


An inbred strain of fawn hooded rats with a congenital platelet defect shows a marked bleeding tendency with prolonged bleeding time. This haemorrhagic disorder has been exclusively related to a deficiency of nucleotides in platelet dense granules. When tested in cell electrophoresis platelets from fawn hooded bleeder rats showed a significantly lower electrophoretic mobility than normal rat platelets. Subsequent studies on the platelet membrane protein pattern by high resolution two-dimensional gel electrophoresis revealed the deficiency of a membrane glycoprotein (apparent molecular mass 90.000, isoelectric point 5.6), which is detectable in normal rat platelets after surface labeling by periodate-tritiated sodium borohydride. It seems likely, that this glycoprotein defect contributes at least partially to the disorder of platelet function in fawn hooded bleeder rats.

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@article{Kirchmaier1990PlateletMD, title={Platelet membrane defects in fawn hooded bleeder rats.}, author={Carl Maximilian Kirchmaier and Martin Meyer and P Spangenberg and Regine Heller and Dorothee Haroske and Hans Klaus Breddin and Uwe Till}, journal={Thrombosis research}, year={1990}, volume={57 3}, pages={353-60} }