Elevated numbers of reticulated platelets in hyperthyroidism: direct evidence for an increase of thrombopoiesis.

Autor: Stiegler, Gabriele, Stohlawetz, Petra, Brugger, Stefan, Jilma, Bernd, Vierhapper, Heinrich, Höcker, Paul, Panzer, Simon
Předmět:
Zdroj: British Journal of Haematology; Jun98, Vol. 101 Issue 4, p656-658, 3p
Abstrakt: We studied thrombopoietic activity in hyperthyroidism by determination of reticulated platelet counts. At the time of hyperthyroidism 14/15 patients had higher reticulated platelets than after achievement of euthyroidism (P < 0.001). There was no difference in peripheral platelet counts and mean platelet volumes at the time of hyperthyroidism when compared to euthyroidism. Three patients had pan- and auto-reactive platelet antibodies during hyperthyroidism. These antibodies were directed against GPIIb/IIIa in two patients and against GPIb/IX in one patient. Our findings provide direct evidence that hyperthyroidism is associated with increased platelet production, as reflected by an increase in reticulated platelets. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index