Abstract:
:The effect of heparin on platelet aggregation was systematically examined on platelets in plasma (PRP), as well as on gel-filtered, washed, and formaldehyde-fixed platelets. Results indicate that, although heparin causes a mild potentiation of platelet aggregation in the PRP systems, a significant inhibitory activity is observed when heparin is added to isolated platelets. This inhibitory activity appears to be specific and not related to the impurities in the heparin preparations, as heparinase, as well as protamine, effectively neutralizes the heparin-mediated inhibitory activity on platelet aggregation. Although heparin-mediated inhibitory activity can be demonstrated in the presence of a number of different agonists (ADP, arachidonic acid, thrombin, Ionophore A23187, epinephrine, and ristocetin), the most pronounced inhibition is seen in the presence of ristocetin. Further studies show that heparin enhances thromboxane generation in isolated platelets. Platelets pretreated with heparin, however, fail to respond to preformed thromboxane. These findings suggest that, in addition to the potentiation of thromboxane production in platelets, heparin may also attribute some change(s) to the platelet(s)/platelet membrane, which interferes with their ability to respond to the agonists of platelet aggregation. This antiaggregatory activity of heparin was found to be inhibited by a factor(s) present in plasma but not in serum.
journal_name
Am J Hematoljournal_title
American journal of hematologyauthors
Saba HI,Saba SR,Morelli GAdoi
10.1002/ajh.2830170310subject
Has Abstractpub_date
1984-10-01 00:00:00pages
295-306issue
3eissn
0361-8609issn
1096-8652journal_volume
17pub_type
杂志文章abstract::The diagnosis of primary plasma cell leukemia (pPCL) has been made by quantifying circulating plasma cells (cPCs) morphologically on a peripheral blood (PB) smear. However, this technique is not sufficiently sensitive. Multiparametric flow cytometry (MFC) provides a readily available and highly sensitive method to ide...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.25773
更新日期:2020-06-01 00:00:00
abstract::Reduced ferrochelatase activity in erythropoietic protoporphyria (EPP) causes the accumulation of protoporphyrin IX (PPIX) leading to acute cutaneous photosensitivity and liver injury. Many EPP patients also have a mild hypochromic, microcytic anemia and iron deficiency. Iron deficiency can lead to decreased PPIX accu...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.25743
更新日期:2020-05-01 00:00:00
abstract::Some patients suffering from malignancies may benefit of myeloablative chemotherapy followed by hematological reconstitution with autologous peripheral blood reinfusion. A quick evaluation of the number of hematopoietic progenitors present in leukapheresis blood samples is necessary to ensure the collection of a suffi...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830390304
更新日期:1992-03-01 00:00:00
abstract::Despite advances in chemotherapeutic agents, the prognosis for some cancers remains extremely poor, suggesting the need for other treatment modalities. Immunotherapy appears an ideal approach because the mechanisms of tumor cell killing induced by tumor vaccines are different from those from chemotherapy. Various inve...
journal_title:American journal of hematology
pub_type: 杂志文章,评审
doi:10.1002/ajh.20415
更新日期:2005-09-01 00:00:00
abstract::Eight patients with severe chronic autoimmune thrombocytopenic purpura (AITP) refractory to high-dose intravenous immunoglobulin (IVIgG) and/or oral prednisone were treated with one to three infusions of high-dose methylprednisolone (HDMP) (15 mg/kg/day). The mean platelet count before treatment was 12 +/- 10 x 10(9)/...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830480416
更新日期:1995-04-01 00:00:00
abstract::Pulmonary alveolar proteinosis (PAP) is a heterogeneous disease that occasionally develops with hematological malignancy. However, PAP in association with hematopoietic stem cell transplantation is quite rare. Here we present the first report of a patient who developed PAP after cord blood transplantation (CBT). A 45-...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.10107
更新日期:2002-06-01 00:00:00
abstract::Thalassemia is an inherited blood disorder that requires lifelong adherence to a complicated and burdensome medical regimen which could potentially impact emotional functioning of patients. The importance of understanding and promoting healthy emotional functioning is crucial not only to psychological well-being, but ...
journal_title:American journal of hematology
pub_type: 信件,多中心研究
doi:10.1002/ajh.21826
更新日期:2010-10-01 00:00:00
abstract::Matching for HLA-A, -B, -C, and -DRB1 loci (8/8 match) is currently the gold standard for unrelated donor hematopoietic cell transplantation (HCT). In Europe, patients are also matched at the HLA-DQB1 loci (10/10 match). However, there is increasing evidence that matching at HLA-DRB3/4/5 loci may help to lower transpl...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.25133
更新日期:2018-05-04 00:00:00
abstract::Our objectives were to measure and compare plasminogen activator inhibitor levels (PAI-1) in primary adult thrombotic thrombocytopenic purpura (TTP) and in secondary TTP associated with bone marrow transplantation (BMT)-TTP. PAI-1 antigen levels were measured by an enzyme linked immunosorbent assay on platelet poor pl...
journal_title:American journal of hematology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1002/(sici)1096-8652(199809)59:1<9::aid-ajh3>3.
更新日期:1998-09-01 00:00:00
abstract::The Muir-Torre syndrome (MTS) is defined as the concurrent or sequential discovery of at least one sebaceous gland tumor and a minimum of one internal malignancy. A man with Hodgkin's lymphoma who subsequently developed an ocular sebaceous carcinoma in situ is described and the world literature of patients with the MT...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830400114
更新日期:1992-05-01 00:00:00
abstract::The aim of the study was to assess the efficacy and safety of rituximab (RTX) for treating systemic lupus erythematosus (SLE)-associated immune cytopenias. This multicenter retrospective cohort study of adults from French referral centers and networks for adult immune cytopenias and SLE involved patients ≥18 years old...
journal_title:American journal of hematology
pub_type: 杂志文章,多中心研究
doi:10.1002/ajh.24999
更新日期:2018-03-01 00:00:00
abstract::Argentine hemorrhagic fever (AHF) is a viral disease caused by Junin virus and characterized by hematologic and neurological involvement. The main hematologic features are leukopenia, thrombocytopenia, and bone marrow hypoplasia. Hematopoietic growth factors serum levels were measured by ELISA technique in forty-eight...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/(sici)1096-8652(200005)64:1<1::aid-ajh1>3.
更新日期:2000-05-01 00:00:00
abstract::We have studied 91 patients with SS genotype, 44 children and 47 adults. Excluding the Cameroon and atypical haplotypes, the distribution in the children's sample exhibited 43% Benin, 38% Bantu, and 3% Senegal. In adults, the sample exhibited 46% Benin, 30% Bantu, and 9% Senegal (chi 2: 13.511, 2 df, P = 0.001). When ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830490212
更新日期:1995-06-01 00:00:00
abstract::Drug metabolizing genes are involved in the detoxification of chemical carcinogens. Polymorphisms in drug-metabolizing genes affect the risk of some forms of cancer. We analyzed six polymorphisms to evaluate their association with risk for non-Hodgkin lymphoma (NHL), and to examine whether smoking modifies these assoc...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.21556
更新日期:2009-12-01 00:00:00
abstract::Although tyrosine kinase inhibitors have redefined the care of chronic myeloid leukemia (CML), these agents have not proved curative, likely due to resistance of the leukemia stem cells (LSC). While a number of potential therapeutic targets have emerged in CML, their expression in the LSC remains largely unknown. We t...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.21915
更新日期:2011-01-01 00:00:00
abstract::Immunoglobulin (Ig) light chain amyloidosis is a clonal but nonproliferative plasma cell disorder in which fragments of an Ig light chain are deposited in tissues. The clinical features depend on the organs involved but can include restrictive cardiomyopathy, nephrotic syndrome, hepatic failure, and peripheral/autonom...
journal_title:American journal of hematology
pub_type: 杂志文章,评审
doi:10.1002/ajh.21934
更新日期:2011-02-01 00:00:00
abstract::Prenatal diagnosis was carried out on a woman who had previously given birth to a son with a spontaneous mutation of C-->T transition at nt 31133 of the factor IX (F.IX) gene. The diagnosis was performed on chorionic villi sampling by the method of amplification-created restriction site (ACRS). It revealed a female fe...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/(SICI)1096-8652(199608)52:4<243::AID-AJH1>
更新日期:1996-08-01 00:00:00
abstract::We describe 3 episodes of microangiopathic hemolytic anemia (MAHA) in 2 solid organ recipients under FK506 (tacrolimus) therapy. In both cases, discontinuation of FK506 and treatment with plasma exchange, fresh frozen plasma replacement, corticosteroids, aspirin, and dipyridamole led to resolution of MAHA. In one pati...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/(SICI)1096-8652(199608)52:4<310::AID-AJH11
更新日期:1996-08-01 00:00:00
abstract::The optimal treatment of advanced sporadic Burkitt lymphoma in adults is still a matter of debate. The salutary results of pediatric therapies did open the road for improving the adult outcome. Between May 1988 and March 2009, 71 consecutive patients-46 adults, 25 children-affected by Burkitt lymphoma/leukemia were tr...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.22189
更新日期:2012-01-01 00:00:00
abstract::Using an in vitro system to evaluate the simultaneous use of two drugs, we previously have confirmed the synergism of vincristine and prednisolone cytotoxicity against lymphoid cells. Experiments were now carried out to determine whether other steroid hormones can be substituted for prednisolone. Partial or complete p...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830050405
更新日期:1978-01-01 00:00:00
abstract::The increased adhesiveness of sickle erythrocytes (SS RBC) to endothelial cells has been confirmed in a static system utilizing fresh umbilical vein endothelium. Adherence of SS RBC to the endothelium was as great in the presence of calcium-containing buffer as when incubated in plasma. SS RBC suspended in autologous ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830340110
更新日期:1990-05-01 00:00:00
abstract::Autoantibody production following allogeneic stem-cell transplantation is common and is often ascribed to the immune dysregulation associated with graft-versus-host disease. Recent data suggests that donor-memory B cells can be reactivated on exposure to antigen and result in antibody production in the recipient ident...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.20350
更新日期:2005-08-01 00:00:00
abstract::The purpose of the study was to assess consensus and interobserver agreement among an international panel of six hematopathologists regarding characterization and reproducibility of bone marrow (BM) histologic features used to diagnose early stage myeloproliferative neoplasms, in particular differentiation of so-calle...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.24837
更新日期:2017-10-01 00:00:00
abstract::Cephalosporins are commonly used drugs that interact with red blood cell membranes. They frequently cause a positive direct antiglobulin test but rarely cause hemolysis. A case of cefotetan-induced hemolytic anemia is described in which two types of antibodies were detected. One reacted with red blood cells by a hapte...
journal_title:American journal of hematology
pub_type: 杂志文章,评审
doi:10.1002/ajh.2830400209
更新日期:1992-06-01 00:00:00
abstract:OVERVIEW:Evidence suggests that even patients aged 70 or above benefit from specific AML therapy. The fundamental decision in AML then becomes whether to recommend standard or investigational treatment. This decision must rest on the likely outcome of standard treatment. Hence we review factors that predict treatment r...
journal_title:American journal of hematology
pub_type: 杂志文章,评审
doi:10.1002/ajh.23834
更新日期:2014-11-01 00:00:00
abstract::Retroviral-mediated gene transfer into hematopoietic stem cells provides the only means of stable transduction of these cells and their progeny for use with a variety of potentially therapeutic genes. Expression of the Moloney amphotropic retroviral receptor-pit-2 or GLVR-2-is critical to the recognition and entry of ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/(sici)1096-8652(199908)61:4<243::aid-ajh4>
更新日期:1999-08-01 00:00:00
abstract::A modified protein-bound cobalamin absorption test was used to study dietary cobalamin absorption in healthy adults of different age groups and patients with isolated low serum concentrations of cobalamin. Dietary cobalamin absorption was significantly reduced in healthy adults aged 55-75 years compared with young adu...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830390202
更新日期:1992-02-01 00:00:00
abstract::Polycythemia vera (PV) and essential thrombocythemia (ET) are common types of myeloproliferative disorders (MPD), the prevalence of which has not been well documented in the United States. Recent breakthroughs in the molecular etiology of these disorders and the accelerated development of targeted pharmacotherapeutics...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.21129
更新日期:2008-05-01 00:00:00
abstract::The above abstract from the THSNA 2016 Summit Abstract Proceedings, first published online in the American Journal of Hematology on 20 July 2016 in Wiley OnlineLibrary (www.onlinelibrary.wiley.com), and in Volume 91, Issue 9, p. E427, has been retracted by agreement between the authors, the journal Editor-in-Chief, Ca...
journal_title:American journal of hematology
pub_type: 杂志文章,撤回出版物
doi:10.1002/ajh.24678
更新日期:2017-04-01 00:00:00
abstract::A 13-year-old boy presented with progressive bilateral lower limb weakness due to exradural granulocytic sarcoma of the spine. After surgical decompression and radiotherapy, he remained in complete remission 6 years after initial diagnosis. The possible reasons for the favorable outcome of this unique case are discuss...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830220415
更新日期:1986-08-01 00:00:00