Abstract:
:A simple method designed to allow coagulation studies in heparinized blood was evaluated. Citrated plasma containing heparin was incubated with an anion-exchange resin commercially available in tablet form (Heparsorb). After centrifugation of the mixture, coagulation studies were carried out on the supernatant plasma. One heparin neutralizer (HN) tablet was capable of removing as much as 43 units of heparin from 1 ml plasma within 10 min of incubation. When normal plasma was exposed to the heparin neutralizer, little or no change in the activities of clotting factors XII, XI, VIII, VII, X, V, and II was observed. However, the resin caused a substantial (44%) loss of factor IX-activity from normal plasma. This loss of factor IX-activity was not observed with plasma from patients receiving coumadin therapy. The results of coagulation tests (aPTT, PT, TT) and determination of fibrinogen/fibrin degradation products performed with HN-treated plasmas from nine patients receiving heparin therapy for thromboembolic disease and seven patients undergoing cardiopulmonary bypass operations were virtually identical to those obtained for the same persons before heparin was administered. The method, which is suitable for the routine clinical laboratory, may be useful in the hemostatic evaluation of critically ill patients who experience bleeding complications while receiving heparin therapy, in the laboratory control of coumadin therapy during the heparin-coumadin overlap period, and in the rapid identification of heparin contamination of blood specimens as a cause of an unexplained aPTT prolongation.
journal_name
Am J Clin Patholjournal_title
American journal of clinical pathologyauthors
Cowan JF,Khan MB,Vargo J,Joist JHdoi
10.1093/ajcp/75.1.60subject
Has Abstractpub_date
1981-01-01 00:00:00pages
60-4issue
1eissn
0002-9173issn
1943-7722journal_volume
75pub_type
杂志文章abstract::Terminal transferase (TdT) activity and antigen have been measured in 267 specimens of human bone marrow and peripheral blood by using a biochemical assay for enzymatic activity and an immunofluorescence test for antigen. Oligo p(dA)50 and dGTP were used as reagents in the biochemical assay and either rabbit anti-calf...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/77.4.420
更新日期:1982-04-01 00:00:00
abstract::We compared the differential counts of normal and abnormal bone marrow from touch imprints with those from aspirate smears to determine whether the touch imprint was reliable for independent routine use in the examination of bone marrow and the classification of hematologic abnormalities. Normocellular bone marrow spe...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/111.6.753
更新日期:1999-06-01 00:00:00
abstract::Thirteen cases of disseminated Mycobacterium avium-intracellulare (MAI), representing a total of 27 bone marrow specimens, were studied. The patients ranged from 25 to 46 years of age and included ten immunocompromised and three immunocompetent hosts. Peripheral blood findings included anemia in all patients, leukopen...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/83.4.463
更新日期:1985-04-01 00:00:00
abstract::Histiocytosis-X cells were obtained at autopsy from the lungs and lymph nodes of a patient who died of the disseminated infantile form of this disease (Letterer-Siwe disease). The ability of these cells to synthesize and release prostaglandins was investigated in culture, by prelabeling the cell lipids with [14C] arac...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/75.2.243
更新日期:1981-02-01 00:00:00
abstract::Five patterns of bone marrow infiltration by non-Hodgkin lymphoma or Hodgkin lymphoma are currently recognized, but a true follicular pattern of bone marrow involvement by follicular lymphoma has not been described. In 260 bone marrow trephine biopsy specimens involved by follicular lymphoma, we identified 12 cases wi...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/EG2M-YHB9-WEFW-7H1R
更新日期:2002-11-01 00:00:00
abstract:OBJECTIVES:Acute myeloid leukemia with myelodysplasia-related changes (AML-MRC) is a heterogeneous disorder defined by morphologic, genetic, or clinical features. Genetic abnormalities associated with AML-MRC are often associated with adverse prognostic features, and many cases are preceded by a myelodysplastic syndrom...
journal_title:American journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1309/AJCP58RSMFRHLHHH
更新日期:2015-07-01 00:00:00
abstract::Blastomycosis generally results from inhalation of Blastomyces dermatitidis conidia following exposure to contaminated soil in an endemic area. Primary infections commonly involve the lungs, although secondary dissemination to other body sites may occur. We describe 2 cases of osseous blastomycosis in people living ou...
journal_title:American journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1309/JEJ0-3N98-C3G8-21DE
更新日期:2002-10-01 00:00:00
abstract::The occurrence of antibodies belonging to IgG class of immunoglobulins with specificity for short ragweed and Bermuda grass in the sera of nonatopic subjects and patients with inhalant allergy (at the time of initial diagnosis, following specific immunotherapy was investigated with an enzyme immunoassay. The intra-ass...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/80.3.290
更新日期:1983-09-01 00:00:00
abstract::This is apparently the second report of a case of human meningoencephalitis caused by the nematode Micronema deletrix. The patient had severe granulomatous meningoencephalitis with numerous foci of hemorrhage and encephalomalacia. Numerous adult female and larval M. deletrix were in the brain. The organisms probably i...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/72.4.640
更新日期:1979-10-01 00:00:00
abstract::Human serum contains 2 isoforms of type-5 tartrate-resistant acid phosphatase (TRACP): 5a and 5b. TRACP-5b is osteoclastic. Our goal was to determine if serum TRACP-5a could originate from inflammatory macrophages (MPhi). We stained 246 paraffin-embedded tissue samples for TRACP using monoclonal antibody 9C5 (mab9C5) ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/DGEA9BE2VE5VCFYH
更新日期:2007-04-01 00:00:00
abstract::Evaluation of blood cells to determine immunologic status is becoming an important clinical application of flow cytometric analysis. For a wider use of immunophenotyping technology in clinical laboratories, the authors developed a rapid method to detect monoclonal antibody-labeled cells using forward light scatter/abs...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/97.3.331
更新日期:1992-03-01 00:00:00
abstract::A test for the detection of antibodies to HTLV-III is available and will be widely used to screen donated blood to prevent transfusion-associated acquired immunodeficiency syndrome (AIDS). Based upon the sensitivity and specificity, the authors calculated the expected predictive values for different groups of asymptom...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/85.6.700
更新日期:1986-06-01 00:00:00
abstract::Primary angiosarcomas of the uterus are exceedingly rare. The authors report a unique case of this entity arising in connection with uterine leiomyomas. The malignant tumor cells showed focally epithelioid features and were immunoreactive for keratin. Electron microscopy and immunohistochemistry confirmed their endoth...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/100.5.514
更新日期:1993-11-01 00:00:00
abstract::This paper presents the first comprehensive morphometry analysis of normal thyroid, adenomas, and follicular and papillary carcinomas. The mean nuclear volume and the mean nuclear surface increased, while the volume densities of rough endoplasmic reticulum and dense bodies decreased from normal thyroid through adenoma...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/79.2.166
更新日期:1983-02-01 00:00:00
abstract::The presence of antineutrophil cytoplasmic autoantibodies with specificity for proteinase 3 (PR3-ANCA) usually is detected by enzyme-linked immunosorbent assay (ELISA) with purified PR3 as a substrate. We studied the technical performance of direct and capture ELISA using a recombinant proteolytically inactive form of...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/YTU2-FUHB-EXJL-WMLD
更新日期:2003-10-01 00:00:00
abstract::Data collection can be enhanced with the use of computers. Care must be taken, however, to ensure that the data collected have a purpose and meet either the quality assessment needs or business functions of the transfusion service. Required data elements are frequently in several data repositories and must be merged t...
journal_title:American journal of clinical pathology
pub_type: 杂志文章,评审
doi:
更新日期:1997-04-01 00:00:00
abstract::A new blood culture medium (16B) containing adsorbent and cationic exchange resins has become available for use with the BACTEC instrument (Johnston Laboratories, Towson, MD). Its purpose is to enhance the detection of bacteremia through binding of antimicrobials. The performance of the BACTEC 16B resin medium was com...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/81.5.643
更新日期:1984-05-01 00:00:00
abstract::After several transfusions with D-negative blood, an O Rh-negative women was apparently sensitized to the C and D antigens. In her prenatal workup, it became evident that she had in fact not been sensitized to D but to G, which initially appeared as anti-D plus anti-C. This sensitization pattern is an unusual occurren...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/84.6.769
更新日期:1985-12-01 00:00:00
abstract::Gastric intraepithelial neoplasia (IEN; formerly dysplasia) is an advanced precancerous lesion. Lesions indefinite for IEN mimic the IEN phenotype but lack some morphologic attributes of IEN. Indefinite for IEN lesions may arise in native foveolae (atypical foveolar hyperproliferation [aFH]) or intestinalized glands (...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/AJCPEU41HTGXSJDQ
更新日期:2012-05-01 00:00:00
abstract::We describe the development and testing of a novel pre-sign-out quality assurance tool for case diagnoses that allows for the random review of a percentage of cases by a second pathologist before case verification and release of the final report. The tool incorporates the ability to record and report levels of diagnos...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/AJCPLN9DU9LNXSXA
更新日期:2010-06-01 00:00:00
abstract::Immunohistochemical expression of napsin A in primary pulmonary mucinous tumors is not well established. Napsin A immunoreactivity was evaluated in 43 mucin-producing adenocarcinomas of the lung consisting of 18 tumors formerly classified as mucinous bronchioloalveolar carcinoma, 15 colloid adenocarcinomas, 5 solid pr...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/AJCP62WJUAMSZCOM
更新日期:2013-02-01 00:00:00
abstract::The expression of human E-cadherin in normal tissues and in benign and malignant tumors of female genital organs was examined immunohistochemically with a monoclonal antibody, HECD-1, specific for human E-cadherin. The normal tissues included the ovary, fallopian tube, uterine endometrium, uterine cervix, and vagina. ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/98.1.76
更新日期:1992-07-01 00:00:00
abstract::Bone marrow biopsy specimens taken on initial investigation of 134 patients with hairy cell leukemia (HCL) were processed into plastic, and sections cut at 3 microns were used for histologic and histomorphometric evaluation. Twenty-four clinical, 10 histologic, and four histomorphometric variables were tested for thei...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/79.5.531
更新日期:1983-05-01 00:00:00
abstract::The case of a 3-week-old infant with Coxsackie B3 meningoencephalitis is discussed. Hypoglycorrhachia and neutrophils in the cerebrospinal fluid characterized the first ten days of her illness. Coxsackie B3 should be added to the list of enteroviruses that can cause hypoglycorrhachia during infections of the central n...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/70.6.947
更新日期:1978-12-01 00:00:00
abstract::Hepatocytes with orcein-positive ground-glass cytoplasm have been shown to contain abundant hepatitis B surface antigen in the cisternae of excess smooth endoplasmic reticulum. Hepatocytes with similar cytoplasmic changes that did not react with orcein were observed in 26.5% of 49 cases of cirrhosis. These cells exhib...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/75.4.498
更新日期:1981-04-01 00:00:00
abstract:OBJECTIVES:To characterize the clinical and pathologic features of mantle cell lymphoma with mantle zone growth pattern (MCL-MZGP). METHODS:The clinicopathologic data from 35 cases of MCL-MZGP obtained in 12 centers were analyzed. RESULTS:The patients with MCL-MZGP typically sought treatment at high clinical stages (...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/aqz043
更新日期:2019-07-05 00:00:00
abstract:OBJECTIVES:Tissue confirmation of the intrauterine location of a pregnancy can be difficult grossly, necessitating a frozen section diagnosis. First-trimester tissue is often scant and can be exhausted by frozen section. We examined 39 endometrial curettings performed for rule-out ectopic pregnancy by touch prep to exa...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/aqw048
更新日期:2016-06-01 00:00:00
abstract::Four media, Eagle's minimal essential medium with 10% fetal bovine serum (MEM/FBS), tryptic soy broth (TSB), 2-SP, and 4-SP, were compared for their ability to maintain the viability of Chlamydia trachomatis at 4 degrees C, -20 degrees C, -70 degrees C, and -176 degrees C (liquid nitrogen) over a 1-week period. 2-SP m...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/81.2.237
更新日期:1984-02-01 00:00:00
abstract:OBJECTIVES:We tried to describe cellular immune response (tertiary lymphoid structures (TLSs), lymphoid aggregates, tumor infiltrating lymphocytes (TILs)) in neoplastic microenvironment of ductal carcinoma in situ (DCIS) with or without associated microinvasion. METHODS:The histopathologic parameters of 177 DCIS and 2...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/aqw097
更新日期:2016-07-01 00:00:00
abstract::The Society for Hematopathology and European Association for Haematopathology workshop, from October 27 to 29, 2011, in Los Angeles, CA, exhibited many exemplary skin biopsy specimens with interesting inflammatory changes mimicking features of cutaneous lymphoma. This article reviews features observed in cutaneous lym...
journal_title:American journal of clinical pathology
pub_type: 共识发展会议,杂志文章
doi:10.1309/AJCPX4BXTP2QBRKO
更新日期:2013-04-01 00:00:00