Abstract
Platelet function was measured on 29 occasions in 16 adult patients in the asymptomatic steady state of sickle-cell anaemia. There was a significant increase in platelet number and micro-aggregate formation, and a lower aggregation threshold with adenosine diphosphate, compared with 23 healthy controls. Similar changes were found, however, in 12 splenectomised patients without sickle-cell diseases. The platelet hyperactivity of the sickle-cell steady state therefore reflects an increased circulating population of young, metabolically active platelets resulting from previous autosplenectomy.
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- Alkjaersig N., Fletcher A., Joist H., Chaplin H., Jr Hemostatic alterations accompanying sickle cell pain crises. J Lab Clin Med. 1976 Sep;88(3):440–449. [PubMed] [Google Scholar]
- Aster R. H. Pooling of platelets in the spleen: role in the pathogenesis of "hypersplenic" thrombocytopenia. J Clin Invest. 1966 May;45(5):645–657. doi: 10.1172/JCI105380. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Boxer M. A., Braun J., Ellman L. Thromboembolic risk of postsplenectomy thrombocytosis. Arch Surg. 1978 Jul;113(7):808–809. doi: 10.1001/archsurg.1978.01370190030004. [DOI] [PubMed] [Google Scholar]
- Freedman M. L., Karpatkin S. Elevated platelet count and megathrombocyte number in sickle cell anemia. Blood. 1975 Oct;46(4):579–582. [PubMed] [Google Scholar]
- Freedman M. L., Karpatkin S. Heterogeneity of rabbit platelets. V. Preferential splenic sequestration of megathrombocytes. Br J Haematol. 1975 Oct;31(2):255–262. doi: 10.1111/j.1365-2141.1975.tb00855.x. [DOI] [PubMed] [Google Scholar]
- Gordon P. A., Breeze G. R., Mann J. R., Stuart J. Coagulation fibrinolysis in sickle-cell disease. J Clin Pathol. 1974 Jun;27(6):485–489. doi: 10.1136/jcp.27.6.485. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Green D., Kwaan HC RUIZ G. Impaired fibrinolysis in sickle cell disease. Relation to crisis and infection. Thromb Diath Haemorrh. 1970 Oct 31;24(1):10–16. [PubMed] [Google Scholar]
- Haut M. J., Cowan D. H., Harris J. W. Platelet function and survival in sickle cell disease. J Lab Clin Med. 1973 Jul;82(1):44–53. [PubMed] [Google Scholar]
- Ittyerah R., Alkjaersig N., Fletcher A., Chaplin H. Coagulation factor XIII concentration in sickle-cell disease. J Lab Clin Med. 1976 Oct;88(4):546–554. [PubMed] [Google Scholar]
- Karpatkin S., Charmatz A. Hetrogeneity of human platelets. 3. Glycogen metabolism in platelets of different sizes. Br J Haematol. 1970 Aug;19(2):135–143. doi: 10.1111/j.1365-2141.1970.tb01612.x. [DOI] [PubMed] [Google Scholar]
- Karpatkin S. Heterogeneity of human platelets. I. Metabolic and kinetic evidence suggestive of young and old platelets. J Clin Invest. 1969 Jun;48(6):1073–1082. doi: 10.1172/JCI106063. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Karpatkin S. Heterogeneity of human platelets. II. Functional evidence suggestive of young and old platelets. J Clin Invest. 1969 Jun;48(6):1083–1087. doi: 10.1172/JCI106064. [DOI] [PMC free article] [PubMed] [Google Scholar]
- LIPSON R. L., BAYRD E. D., WATKINS C. H. The postsplenectomy blood picture. Am J Clin Pathol. 1959 Dec;32:526–532. doi: 10.1093/ajcp/32.6.526. [DOI] [PubMed] [Google Scholar]
- Leslie J., Langler D., Serjeant G. R., Serjeant B. E., Desai P., Gordon Y. B. Coagulation changes during the steady state in homozygous sickle-cell disease in Jamaica. Br J Haematol. 1975 Jun;30(2):159–166. doi: 10.1111/j.1365-2141.1975.tb00530.x. [DOI] [PubMed] [Google Scholar]
- Mannucci P. M., Sharp A. A. Platelet volume and shape in relation to aggregation and adhesion. Br J Haematol. 1967 Jul;13(4):604–617. doi: 10.1111/j.1365-2141.1967.tb00768.x. [DOI] [PubMed] [Google Scholar]
- McClure P. D., Ingram G. I., Stacey R. S., Glass U. H., Matchett M. O. Platelet function tests in thrombocythaemia and thrombocytosis. Br J Haematol. 1966 Jul;12(4):478–498. doi: 10.1111/j.1365-2141.1966.tb05656.x. [DOI] [PubMed] [Google Scholar]
- O'Brien J. R., Etherington M., Jamieson S., Lawford P. Letter: Heparin thrombin clotting-time and platelet factor 4. Lancet. 1974 Sep 14;2(7881):656–657. doi: 10.1016/s0140-6736(74)91982-5. [DOI] [PubMed] [Google Scholar]
- Pearson H. A., Spencer R. P., Cornelius E. A. Functional asplenia in sickle-cell anemia. N Engl J Med. 1969 Oct 23;281(17):923–926. doi: 10.1056/NEJM196910232811703. [DOI] [PubMed] [Google Scholar]
- Richardson S. G., Matthews K. B., Stuart J., Geddes A. M., Wilcox R. M. Serial changes in coagulation and viscosity during sickle-cell crisis. Br J Haematol. 1979 Jan;41(1):95–103. doi: 10.1111/j.1365-2141.1979.tb03685.x. [DOI] [PubMed] [Google Scholar]
- Rickles F. R., O'Leary D. S. Role of coagulation system in pathophysiology of sickle cell disease. Arch Intern Med. 1974 Apr;133(4):635–641. [PubMed] [Google Scholar]
- Rosenblate H. J., Eisenstein R., Holmes A. W. The liver in sickle cell anemia. A clinical-pathologic study. Arch Pathol. 1970 Sep;90(3):235–245. [PubMed] [Google Scholar]
- Schwartz A. D. The splenic platelet reservoir in sickle cell anemia. Blood. 1972 Nov;40(5):678–683. [PubMed] [Google Scholar]
- Shulman N. R., Watkins S. P., Jr, Itscoitz S. B., Students A. B. Evidence that the spleen retains the youngest and hemostatically most effective platelets. Trans Assoc Am Physicians. 1968;81:302–313. [PubMed] [Google Scholar]
- Stuart M. J., Stockman J. A., Oski F. A. Abnormalities of platelet aggregation in the vaso-occlusive crisis of sickle-cell anemia. J Pediatr. 1974 Nov;85(5):629–632. doi: 10.1016/s0022-3476(74)80504-4. [DOI] [PubMed] [Google Scholar]
- Wu K. K., Hoak J. C. A new method for the quantitative detection of platelet aggregates in patients with arterial insufficiency. Lancet. 1974 Oct 19;2(7886):924–926. doi: 10.1016/s0140-6736(74)91131-3. [DOI] [PubMed] [Google Scholar]
- Wu K. K., Hoak J. C. Spontaneous platelet aggregation in arterial insufficiency: mechanisms and implications. Thromb Haemost. 1976 Jun 30;35(3):702–711. [PubMed] [Google Scholar]
- Zucker S., Mielke C. H. Classification of thrombocytosis based on platelet function tests: correlation with hemorrhagic and thrombotic complications. J Lab Clin Med. 1972 Sep;80(3):385–394. [PubMed] [Google Scholar]