Abstract:
:Chronic myeloproliferative diseases (MPDs) are not associated with consistent cytogenetic or molecular abnormalities. Demonstration of clonal cell growth by analysis of X-chromosome inactivation (XCI) patterns in females provides a promising tool for diagnosis. However, this technique can be complicated by excessive lyonization of normal cells mimicking clonal cell growth: We analyzed XCI patterns at the human androgen receptor (HUMARA) locus in 146 healthy females, 65 women with secondary neutrophilia, 31 women with reactive thrombocytosis, and 86 women with chronic MPDs. A skewed XCI pattern with greater than 75% amplification of 1 allele (allele ratio > 3:1) was found in 22 (9.1%) of 242 control subjects. The incidence of skewing was statistically significantly lower in women younger than 30 years (2/73) compared with women older than 60 years (10/53). Of 86 patients with a chronic MPD, 71 (82%) exhibited an allele ratio greater than 3:1, whereas only 10 (12%) of 86 age-matched control subjects showed a skewed XCI pattern. Although statistical evaluation of the data showed a significant difference between patients with a chronic MPD and control subjects, proof of clonality in individual, especially elderly, patients is difficult.
journal_name
Am J Clin Patholjournal_title
American journal of clinical pathologyauthors
Mitterbauer G,Winkler K,Gisslinger H,Geissler K,Lechner K,Mannhalter Cdoi
10.1093/ajcp/112.1.93subject
Has Abstractpub_date
1999-07-01 00:00:00pages
93-100issue
1eissn
0002-9173issn
1943-7722journal_volume
112pub_type
杂志文章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::The Digene Hybrid Capture 2 (hc2) high-risk human papillomavirus (HPV) DNA test (Digene, Gaithersburg, MD) is widely used for triage of women with atypical squamous cells of undetermined significance. Results in a "retest zone" (weakly positive tests) are repeated up to 2 times according to the Digene-recommended algo...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/4WCPTUV506HLP06P
更新日期:2007-01-01 00:00:00
abstract::Acute myeloid leukemia (AML) with normal cytogenetics represents approximately 40% to 50% of de novo AML. This heterogeneous AML subgroup constitutes the single largest cytogenetic group with an intermediate prognosis. Previous studies have suggested that the Fms-like tyrosine kinase-3 internal tandem duplication (FLT...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/NRTX9AKXHR5JBT93
更新日期:2008-04-01 00:00:00
abstract::The quality management program in the Division of Transfusion Medicine at our institution had evolved to the point that the program generally was perceived to be the sole responsibility of our Quality Unit (which was administratively independent of day-to-day operations). It became clear that this administrative model...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/UHKMFRFTDRJ7MJ58
更新日期:2005-10-01 00:00:00
abstract::The measurement of beta-thromboglobulin (BTG) and platelet lactic dehydrogenase (LDH) as markers for alpha-granule release and platelet lysis, respectively, has been reported to correlate with the amount of damage incurred during the preparation and storage of platelet concentrates. We compared the concentrations of t...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/79.6.719
更新日期:1983-06-01 00:00:00
abstract::This article explores 3 aspects of breast diagnosis that are currently under investigation and about which our thinking has recently undergone considerable reshaping. The trend toward more frequent evaluation of clinically subtle lesions has suggested that it might be necessary to understand thefine-needle aspiration ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1309/29FP-0QAU-CMJY-BK3U
更新日期:2000-05-01 00:00:00
abstract::Since the introduction of the triple screen, the emergence of additional analytes found to be associated with trisomy 21 pregnancies has challenged the clinical pathology and obstetric communities to determine which combination provides the best performance characteristics as a screening test. The cost, practicality, ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1309/B7DBBLJW0W8P9G06
更新日期:2003-12-01 00:00:00
abstract::A teenage male, with Goodpasture's syndrome and serum antiglomerular basement membrane (anti-GBM) antibodies, had a focal proliferative glomerulonephritis with crescents. Immunofluorescence microscopy of his glomeruli using anti-IgG antibodies demonstrated both intense linear GBM staining, and granular subepithelial s...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/78.3.381
更新日期:1982-09-01 00:00:00
abstract:OBJECTIVES:Edoxaban, an oral direct factor Xa inhibitor, does not require routine monitoring. However, assessment of the anticoagulant effects may be required in certain situations. METHODS:We investigated the effects of edoxaban on prothrombin time (PT), activated partial thromboplastin time (aPTT), and thrombin gene...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/AJCPQ2NJD3PXFTUG
更新日期:2015-02-01 00:00:00
abstract::The involvement of Nonspecific Crossreacting Antigen (NCA) in the immunohistological demonstration of Carcino Embryonic Antigen (CEA) in 56 benign and 92 malignant lesions of the breast was analyzed. For this purpose, the authors utilized both polyclonal antisera and monoclonal antibodies. Polyclonal anti-CEA sera wer...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/82.5.526
更新日期:1984-11-01 00:00:00
abstract:OBJECTIVES:Pathogenic free-living amebae (FLAs) cause skin, ocular, and central nervous system (CNS) infections with significant morbidity and mortality. Diagnosis of FLA infections by pathologic examination of tissue sections can be aided using molecular assays. This study investigated the performance characteristics ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/aqz103
更新日期:2019-11-04 00:00:00
abstract::The cytodiagnosis of Pneumocystis carinii (PC) in bronchoalveolar lavage (BAL) fluids has traditionally required a special stain such as Gomori's methenamine silver (GMS) stain. Recent reports indicate that identification of foamy alveolar casts (FACs) with Papanicolaou's (Pap) stain may provide a sensitive and less c...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/95.4.583
更新日期:1991-04-01 00:00:00
abstract::Anti-glomerular basement membrane (anti-GBM) glomerulonephritis is a rare disease caused by IgG autoantibodies against the glomerular basement membrane. We describe clinical and pathologic findings in a series of renal biopsy specimens from 80 patients. The patients ranged in age from 16 to 87 years. The age distribut...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/nptp-4ukv-7ju3-elmq
更新日期:2006-03-01 00:00:00
abstract::Point-of-care testing (POCT) is a means of providing patient services more rapidly. Most evaluations of bedside laboratory testing devices have emphasized analytical performance in tertiary care settings. In contrast, the authors compare the operating cost of POCT for glucose and an electrolyte/glucose/blood urea nitr...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/103.2.240
更新日期:1995-02-01 00:00:00
abstract::A clinically and histopathologically well-documented case of malignant carcinoid tumor (with carcinoid syndrome) is described. The presence of numerous psammoma bodies in metastatic carcinoid tumor deposits, confirmed by histochemical and ultrastructural analyses, represents a heretofore unreported finding. ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/81.3.372
更新日期:1984-03-01 00:00:00
abstract::Adenovirus was cultured from various gastrointestinal sites and one lung specimen from seven immunosuppressed patients, four of whom were bone marrow transplant recipients. Histologic examination and in situ hybridization studies of the lung demonstrated adenovirus in the bronchial epithelium and alveolar lining cells...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/97.4.555
更新日期:1992-04-01 00:00:00
abstract::Pancreatic adenocarcinoma is believed to develop from histologically identifiable intraductal lesions known as pancreatic intraepithelial neoplasias (PanINs) that undergo a series of architectural, cytologic, and genetic changes, a progression model similar to the adenoma-carcinoma sequence in the colon. The apomucin ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/7Y7N-M1WM-R0YK-M2VA
更新日期:2002-05-01 00:00:00
abstract::The development of sensitive immunofluorescent technics for the detection of platelet antibodies has stimulated renewed interest in the field of platelet immunology. However, the analysis of multispecific sera containing both HLA and platelet-specific antibodies requires cumbersome absorption technics and relatively l...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/80.6.839
更新日期:1983-12-01 00:00:00
abstract:Objectives:Lymphoepithelioma-like carcinoma (LELC) of the uterine cervix is a rare tumor. The goal of this study was to evaluate a series of cases of cervical LELC and to investigate possible association with human papillomavirus (HPV) and/or Epstein-Barr virus (EBV). Methods:Immunohistochemistry for p63, p16, human l...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/aqy130
更新日期:2019-01-07 00:00:00
abstract::Non-Hodgkin lymphoma (NHL) is more likely to develop in patients with Hodgkin disease (HD) than in the general population. Although reports of synchronous or metachronous HD and NHL are not uncommon in the literature, the biologic relationship of these 2 malignant neoplasms often is unclear. A larger-than-expected fra...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/W1GW-43HT-793U-F86R
更新日期:2004-05-01 00:00:00
abstract::Functional assays for heparin cofactor II (HC-II) are based on the inactivation of thrombin by HC-II in the presence of dermatan sulfate (DS). Residual thrombin is measured in a chromogenic assay. Interference by the antithrombin-III (AT-III)/heparin complex, which also rapidly inactivates thrombin, must be eliminated...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/89.3.353
更新日期:1988-03-01 00:00:00
abstract::Urine cultures represent 40-50% of specimens processed by hospital clinical microbiology laboratories. An accurate rapid screening method to detect positive urine cultures could greatly improve laboratory efficiency. Three hundred eighty-two unselected urines were screened by nephelometry at 2, 4, and 5 hours of shaki...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/77.3.305
更新日期:1982-03-01 00:00:00
abstract::Eosinophils are normally absent from the urine. Their presence has been associated with a variety of clinical conditions affecting the kidney or urinary tract. The authors examined the clinical significance and eosinophils, in particular, for acute interstitial nephritis. ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/88.4.520
更新日期:1987-10-01 00:00:00
abstract::Distributions of nine clinical chemistry determinations (serum bilirubin, globulin, creatinine, thyroxine, alkaline phosphatase, hematocrit, aspartate aminotransferase, uric acid, and plasma glucose) were assessed for 1,605 schoolchildren aged 6 to 17 years, in the Cincinati Lipid Research Clinic's Princeton School Di...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/74.4.371
更新日期:1980-10-01 00:00:00
abstract:Objectives:To analyze the economic impact of testing for activated protein C resistance (APC-R) due to factor V Leiden (FVL) mutation with APC-R with reflexive FVL genotyping (algorithmic approach) or genotyping alone. Methods:OptumLabs Data Warehouse (OLDW) data were used to assess testing approaches. Insurance claim...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/aqx033
更新日期:2017-06-01 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::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::The authors investigated the humoral and tissue expression of six antigens associated with medullary thyroid cancer (MTC): calcitonin (CT), calcitonin gene-related peptide (CGRP), carcinoembryonic antigen (CEA), neuron-specific enolase (NSE), somatostatin (SRIF), and thyroglobulin (TG). The antigens were studied in th...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/95.3.300
更新日期:1991-03-01 00:00:00
abstract::In view of their reported reciprocal effects on apoptosis, the expression of p53 and bcl-2 proteins was studied in 46 cases of Hodgkin's disease by immunocytochemical labeling. We found p53 protein in Reed-Sternberg cells and their mononuclear variants in 16 of the 46 cases (34.7%) of Hodgkin's disease, mainly in a nu...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/99.6.663
更新日期:1993-06-01 00:00:00
abstract::The concept of re-engineering rests on computer coordination of information. As a management tool, it has been tested and found to be ambiguous. At best it sharpens laboratory objectives, but at worst it fragments skills and threatens the community attitudes needed for teamwork. Experience with its most fruitful compo...
journal_title:American journal of clinical pathology
pub_type: 杂志文章,评审
doi:
更新日期:1996-04-01 00:00:00