Abstract:
:Urine myoglobin concentrations are measured clinically to assess rhabdomyolysis and the related risk of renal damage. We studied urine myoglobin concentrations in vitro to explore the factors affecting stability. Myoglobin was very unstable in urine specimens, especially below pH 6.5, and its immunoreactivity deteriorated rapidly with increasing temperatures. The deterioration rate was influenced greatly by urine myoglobin concentration, suggesting rate-limiting kinetics. Myoglobin in acidic phosphate-buffered saline was significantly more stable than in acidic urine, indicating that urinary factors in addition to pH are involved in myoglobin instability. These unidentified urinary factors had a molecular weight of less than 10 kd. Our results provide additional insight into the mechanism involved in the instability of the urine myoglobin concentration. Understanding the stability of myoglobin in the preanalytic in vitro phase and its potential in vivo instability is essential in assuring the reliability and clinical usefulness of urine myoglobin measurements.
journal_name
Am J Clin Patholjournal_title
American journal of clinical pathologyauthors
Chen-Levy Z,Wener MH,Toivola B,Daum P,Reyes M,Fine JSdoi
10.1309/9AQ6-2FR2-65ER-3E2Wsubject
Has Abstractpub_date
2005-03-01 00:00:00pages
432-8issue
3eissn
0002-9173issn
1943-7722pii
9AQ62FR265ER3E2Wjournal_volume
123pub_type
杂志文章abstract::Experiences of the CAP Survey Program in reticulocyte counts and morphologic identification of reticulocytes from 1971 to 1974 are reviewed. Problems of morphologic identification are reflected in an excessive variance of reticulocyte counts. Statistical sources of variations in counting are identified. The older, ori...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:
更新日期:1976-07-01 00:00:00
abstract::Three anti-Factor-VIII antibodies from hemophiliacs were reacted with samples of batches of Maws commerical bovine and porcine Factor VIII concentrates manufactured over a 12-year period. The apparent antibody concentrations varied widely with the different batches of concentrates. The variations are probably due to i...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/65.6.957
更新日期:1976-06-01 00:00:00
abstract::A case of epithelioid sarcoma in a 39-year-old woman who had metastatic lesions in her lung from a primary arm tumor is presented. A review of the literature and analysis of this case did not identify any specific light microscopic or immunohistochemical way to separate definitively the lung cytologic smear in this ca...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/100.2.171
更新日期:1993-08-01 00:00:00
abstract:Objectives:To model renal function 2 years following radical nephrectomy with quantitative analyses using clinical, histopathologic, and renal composite cortical volumes (CCV). Methods:This retrospective study involved an assessment of the nonneoplastic kidney tissue by three blinded nephropathologists using modified ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/aqy107
更新日期:2019-01-01 00:00:00
abstract::The authors report two cases of vernix caseosa peritonitis, an infrequent complication of cesarean section with distinctive histopathologic findings. Both patients underwent exploratory laparotomy for unexplained abdominal pain after cesarean section. Histopathologic evaluation of surgically removed tissue revealed an...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/103.6.681
更新日期:1995-06-01 00:00:00
abstract:Objectives:The aims were to evaluate breast cancer (BC) tumor-infiltrating lymphocytes (TILs) interobserver variability, heterogeneity, and the fidelity of scoring TILs in core needle biopsy (CNB). Methods:Matching CNB and two full-face sections (FFSs) of BC cases (n = 100) were independently reviewed by two pathologi...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/aqy069
更新日期:2018-10-01 00:00:00
abstract::An immunohistochemical study was conducted of 108 papillary carcinoma cases, including 48 cases with intratumoral heterotopic ossification (IHO). In 48 cases, papillary carcinoma with IHO was accompanied by nodular fibrosis. Cases of papillary carcinoma with IHO or nodular fibrosis showed higher incidences of lymph no...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/AJCPQZQN50HKIAHA
更新日期:2013-05-01 00:00:00
abstract::We analyzed the diagnostic role of claudins in effusion cytology in 325 effusions, including 218 ovarian, 49 breast, 15 cervical or endometrial, 10 gastrointestinal, and 8 lung adenocarcinomas and 25 malignant mesotheliomas (MMs). Specimens were analyzed for claudin-1 and claudin-3 expression using immunohistochemical...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/V025QRN3R9CJGNPX
更新日期:2007-06-01 00:00:00
abstract::We evaluated a comprehensive deidentification engine at the University of Pittsburgh Medical Center (UPMC), Pittsburgh, PA, that uses a complex set of rules, dictionaries, pattern-matching algorithms, and the Unified Medical Language System to identify and replace identifying text in clinical reports while preserving ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/E6K3-3GBP-E5C2-7FYU
更新日期:2004-02-01 00:00:00
abstract::Infusible platelet membranes (IPMs) prepared from fresh or outdated human platelets have been shown to correct prolonged bleeding times in thrombocytopenic rabbits. In previous trials, IPMs did not seem to be immunogenic and lacked dose-limiting toxicity. The present study was undertaken to explore whether the platele...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/CCDV-3BEP-XXKP-BKDM
更新日期:2001-01-01 00:00:00
abstract::Examination of kidneys of ten patients with uremia and severe hypertension treated by chronic intermittent hemodialysis revealed a deposition of glycogen within interstitial cells of the renal medulla. This is unlike any described renal distribution of glycogen. Electron microscopic studies performed in one case demon...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/72.3.400
更新日期:1979-09-01 00:00:00
abstract::By electrophoresis, prealbumin is seen as a discrete band anodic to the albumin fraction. Cases of duplicate bands in the prealbumin region have been described previously in serum, cerebrospinal fluid, and urine, and have had an association with varied clinical entities. The authors describe a novel association of sev...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/101.4.475
更新日期:1994-04-01 00:00:00
abstract:OBJECTIVES:The objective of this research was to determine test intervals between intraoperator case reviews to minimize the impact of recall. METHODS:Three pathologists were presented with a group of 120 slides and subsequently challenged with a study set of 120 slides after 2-week and 4-week intervals. The challenge...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/AJCPUC3TYMS3QOBM
更新日期:2015-03-01 00:00:00
abstract::The major histocompatibility complex probably plays a crucial role in the efficacy of the cellular immune response against virally infected cervical diseases. Therefore, the allele-specific histocompatibility-related leukocyte antigens (HLA) class I and II expression on normal (n = 10), premalignant (n = 25), and mali...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/101.1.5
更新日期:1994-01-01 00:00:00
abstract:Objectives:To evaluate the prevalence of potentially unnecessary repeat testing (PURT) and the associated economic burden for an inpatient population at a large academic medical facility. Methods:We evaluated all inpatient test orders during 2016 for PURT by comparing the intertest times to published recommendations. ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/aqy020
更新日期:2018-05-31 00:00:00
abstract::Lymphocyte subpopulations in the intestinal tissues of seven patients with acquired immunodeficiency syndrome (AIDS) or AIDS-related complex (ARC) were studied by immunohistologic technics at two different locations, the small bowel and the rectum. Intraepithelial and lamina propria lymphocyte subsets stained with mon...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/87.3.356
更新日期:1987-03-01 00:00:00
abstract::Hepatitis C virus (HCV) infection may be complicated by non-Hodgkin's lymphoma. We describe eight cases of B-cell extranodal non-Hodgkin's lymphoma occurring during the course of chronic HCV-related hepatic disease (low-grade of mucosa-associated lymphoid tissue [MALT]-type; diffuse large cell; Burkitt; diffuse small ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/109.5.600
更新日期:1998-05-01 00:00:00
abstract::A 73-year-old man with myelodysplastic syndrome developed during the course of his illness auto-immune hemolytic anemia. The association between auto-immune hemolysis and myeloproliferative disease is extremely rare. An even more unique finding is the nature of the antibody which demonstrated single specificity agains...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/77.3.356
更新日期:1982-03-01 00:00:00
abstract::We studied the expression of cytokeratin (CK) 7, CK20, CDX-2, and p16 in 119 cervical adenocarcinomas (65 usual type [50 invasive; 15 in situ], 37 intestinal type [21 invasive; 16 in situ], 10 endometrioid, 5 adenosquamous, and 2 signet-ring carcinomas) in comparison with 55 cases of rectal adenocarcinomas. The percen...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/AJCP7E5ASGOENPFP
更新日期:2009-10-01 00:00:00
abstract::We noticed almost routine disparate results in margin lengths when colorectal specimens are measured in vivo by the surgeon and in vitro by the pathologist. We studied 26 sigmoid and rectum specimens to document the amount of organ shrinkage after surgical removal and fixation. Each specimen had a 5.0-cm segment at ea...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/111.3.349
更新日期:1999-03-01 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::An acquired circulating inhibitor to Factor VIII:C was found in a 27-year-old postpartum woman who presented with ecchymoses and hematomas. Postpartum Factor VIII:C inhibitors can clinically manifest with signs and symptoms not unlike those in a classic hemophiliac. The natural history of this inhibitor is typically o...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/78.5.789
更新日期:1982-11-01 00:00:00
abstract::Fifteen cases of low-grade B-cell lymphoma involving unusual extranodal sites have been studied in comparison to cases reported or observed arising in typical mucosa-associated lymphoid tissues. In every case, histopathologic features conformed to those characteristic for lymphomas of mucosa-associated lymphoid tissue...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/96.6.738
更新日期:1991-12-01 00:00:00
abstract:OBJECTIVES:To demonstrate the impact of genetics specialists on identifying test order errors and improving reimbursement for genetic testing. METHODS:Forty-four cases in which whole exome sequencing (WES) was performed but not reimbursed were reviewed by a genetic counselor through simulated prospective and retrospec...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/aqz188
更新日期:2020-03-09 00:00:00
abstract:OBJECTIVES:Human epidermal growth factor receptor 2 (HER2, ERBB2) testing is an important prognostic/predictive marker in breast cancer management, especially in selecting HER2-targeted treatment. American Society of Clinical Oncology (ASCO)/College of American Pathologists (CAP) guidelines address HER2 status and were...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/AJCP3Q9WFOQTKUVV
更新日期:2015-08-01 00:00:00
abstract::Peripheral blood mononuclear cells from pemphigus vulgaris and bullous pemphigoid patients produced antiepithelial antibodies in a pokeweed mitogen-stimulated in vitro cell culture system. Antiintercellular substance (ICS) antibodies were detected in supernatants of cell cultures from four of four pemphigus vulgaris p...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/81.5.586
更新日期:1984-05-01 00:00:00
abstract::In diagnostic pathology, decision-making skills are used to match the facts of a particular case to a diagnostic category. Ideally the diagnosis is established with "beyond a reasonable doubt" certainty, but substantial uncertainty orfrank diagnostic error can afflict the diagnostic process for a variety of reasons. M...
journal_title:American journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1309/YUCA-HMEE-BKQ5-BH5B
更新日期:2001-12-01 00:00:00
abstract::Myxomatous degeneration of the mitral valve is a disease of unknown etiology that is associated with many ominous complications. A case in which non-bacterial thrombotic endocarditis, superimposed on a myxomatous mitral valve, resulted in systemic embolization to the brain, heart, and kidney is presented. The purpose ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/72.3.489
更新日期:1979-09-01 00:00:00
abstract::Statin is a 57 kDa nuclear protein exclusively found in noncycling cells. Its expression in hematolymphoid cells had not been examined previously. The authors studied statin immunoreactivity in nonneoplastic lymphoid tissues from 26 lymph nodes, 3 tonsils, and 2 spleens. Statin was detected primarily in small lymphoid...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/101.4.421
更新日期:1994-04-01 00:00:00
abstract::Two hundred forty-three patients who had pathologically verified primary osteosarcomas of bone, treated at The University of Texas System Cancer Center, M. D. Anderson Hospital and Tumor Institute over a 24-year period, form the basis of this study. These cases provide a basis for comparison of those patients currentl...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/67.5.427
更新日期:1977-05-01 00:00:00