Abstract：
INTRODUCTION:Measurement of hemoglobin A1c (HbA1c) is used as an objective measure of long-term blood glucose control in diabetic patients. Recent improvements in automation combined with new recommendations for precision and accuracy have caused us to reevaluate our methods for measuring HbA1c. OBJECTIVE:We evaluated a newly automated high-performance liquid chromatography (HPLC) instrument for measurement of HbA1c (Tosoh A1c 2.2 Plus Glycohemoglobin Analyzer, Tosoh Medics, Foster City, Calif) and compared the results obtained by HPLC to those obtained with an immunoassay (Hitachi 911, Boehringer Mannheim Corporation, Indianapolis, Ind). RESULTS:The Tosoh analyzer was found to be linear in a range of 5.3% to 17% and had a throughput of 20 samples per hour. HbA1c results for 102 patient samples by the 2 techniques showed good correlation, with a slope of 0.87 and an intercept at 1.27% +/- 0.15%. Both the total and within-run coefficients of variation were consistently lower for the HPLC method compared with the immunoassay method. The HPLC method produces a chromatogram that shows the different hemoglobin fractions, allowing identification of abnormal hemoglobin variants. In heterozygous individuals, HbA1c measurements are made with no interference from the hemoglobin variant. In the case of homozygous or doubly heterozygous hemoglobin variants, the Tosoh HPLC identifies the hemoglobin variants as such and correctly does not report a HbA1c value in the presence of a markedly decreased amount of hemoglobin A. CONCLUSIONS:The Tosoh HPLC provides adequate throughput and improved precision, and the method is traceable to the Diabetes Control and Complications Trial.
journal_name
Arch Pathol Lab Medjournal_title
Archives of pathology & laboratory medicineauthors
Khuu HM,Robinson CA,Goolsby K,Hardy RW,Konrad RJdoi
10.1043/0003-9985(1999)123<0763:EOAFAH>2.0.CO;2subject
Has Abstractpub_date
1999-09-01 00:00:00pages
763-7issue
9eissn
0003-9985issn
1543-2165journal_volume
123pub_type
杂志文章abstract：:beta-Aminopropionitrile (BAPN) administered to rats has caused exostosis formation at sites of muscle attachment and also caused delay in the healing of soft tissue wounds and of bone fractures. Since phenytoin sodium has an opposite effect on wound healing, bone fractures, and the tensile strength of connective tissu...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1977-02-01 00:00:00
abstract：CONTEXT:Fine-needle aspiration has become an accepted and cost-effective procedure for rapid diagnosis of thyroid lesions. The routine use of fine-needle aspiration has reduced the rate of unnecessary surgery for thyroid nodules. OBJECTIVES:To determine the accuracy of fine-needle aspiration biopsy diagnosis and to di...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/0003-9985(2001)125<0484:AOFNAO>2.0.CO;2
更新日期：2001-04-01 00:00:00
abstract：:We recently encountered a unique case of follicular variant of papillary carcinoma arising in struma ovarii that contained numerous intrafollicular crystalloids. There was no evidence of capsular or vascular invasion or metastases, though the DNA content of the papillary carcinoma was aneuploid. In contrast, diploid D...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1991-02-01 00:00:00
abstract：BACKGROUND:The major biochemical characteristic of Dupuytren disease is the progressive and irreversible deposition of excess fibrous collagen characterized by an enhanced type III collagen proportion. OBJECTIVE:To investigate the influence of changes of the collagen spectrum on the biophysical properties of the palma...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/0003-9985(2000)124<1275:COBABP>2.0.CO;2
更新日期：2000-09-01 00:00:00
abstract：:By means of an electrofocusing technique, the serum specimens of pregnant women routinely revealed three bands of alkaline phosphatase (ALP) that were released by placental syncytiotrophoblast, germ cell (ovary), and fetal intestine at pl of 4.73, 4.65, and 4.55, respectively. When defining reference ranges for ostens...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1992-10-01 00:00:00
abstract：:Four instances (8%) of inflammatory fibroid polyp (IFP) with concomitant adenocarcinoma or adenoma, in the same area, were noted among 50 cases of IFP of the stomach. Adding two cases from other sources, four cases of gastric IFP concomitant with an adenocarcinoma and two of gastric IFP concomitant with an adenoma wer...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1988-08-01 00:00:00
abstract：:The dramatic rise and equally dramatic fall in the mortality from coronary heart disease in the 20th century is only partly explained. This article reviews the development of our ideas concerning possible pathways other than lipids that might play a role in the development of human atherosclerosis alone or in combinat...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1988-10-01 00:00:00
abstract：:Aspiration biopsy cytology (ABC) specimens were obtained from 540 patients by transrectal biopsy because of suspicious lesions or metastases from occult carcinoma. Although poorly differentiated prostatic carcinoma had previously presented few diagnostic problems by ABC, cells from well-differentiated adenocarcinoma h...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1982-03-01 00:00:00
abstract：CONTEXT:A Treatise on Pathological Anatomy, published in 1829 by William E. Horner, is the first American textbook on pathology. Several articles have been written on Horner, but they do not evaluate the role that the knowledge he recorded played on the intellectual origin of the discipline of pathology in America. Onl...
journal_title：Archives of pathology & laboratory medicine
pub_type： 传,历史文章,杂志文章
doi：10.5858/arpa.2011-0141-HP
更新日期：2011-12-01 00:00:00
abstract：CONTEXT:Mucin 4 (MUC4) is a high-molecular-weight membrane-bound glycoprotein that is expressed in the foregut before epithelial differentiation. It is found in normal adult airway epithelium, non-small cell lung carcinoma (NSCLC) and in other human malignancies independent of mucus secretion. Although its tissue distr...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/1543-2165(2007)131[593:MEINCL]2.0.CO;2
更新日期：2007-04-01 00:00:00
abstract：:When present, chromosome abnormalities can contribute useful information for tumor diagnosis and prognosis. However, the existence of diploid tumor cells indicates that such abnormalities are not necessary in tumors. Their time of appearance, sometimes preceding or predisposing to tumor and sometimes occurring late in...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1984-01-01 00:00:00
abstract：:A case of epithelioid sarcoma was studied light microscopically, ultrastructurally, and immunohistologically. The tumor was a deep antebrachial mass in a 57-year-old man, and led to antebrachial amputation. Light microscopically, the tumor consisted of nodules that often had central necrosis. The cells were uniform, w...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1982-11-01 00:00:00
abstract：:The concentration of neuron-specific enolase (NSE, gamma-subunit of enolase) in tumor extracts of 25 nonargyrophilic and seven argyrophilic carcinomas of the female breast was measured by radioimmunoassay. The mean concentration of NSE in nonargyrophilic carcinomas was 89 ng/mg of protein, (range, 9 to 281 ng/mg), and...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1987-09-01 00:00:00
abstract：CONTEXT:- Nonuterine high-grade serous carcinomas (HGSCs) are believed to arise most often from precursors in the fallopian tube referred to as serous tubal intraepithelial carcinomas (STICs). A designation of tubal origin has been suggested for all cases of nonuterine HGSC if a STIC is identified. OBJECTIVE:- To high...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：10.5858/arpa.2017-0231-RA
更新日期：2017-10-01 00:00:00
abstract：:Stereotactically directed needle biopsy of central nervous system lesions is a widely used diagnostic procedure with low morbidity and mortality. Diagnostic tissue is obtained in most instances. As a part of the College of American Pathologists Practical Topics in Neuropathology series, the following report summarizes...
journal_title：Archives of pathology & laboratory medicine
pub_type： 指南,杂志文章,实务指引
doi：
更新日期：1997-05-01 00:00:00
abstract：:We describe the pathomorphologic features of 29 autopsy cases of thorium dioxide-related angiosarcoma (AGS) of the liver. The average (+/- SD) latent period after thorium dioxide injection was 36.2 +/- 5.2 years. Macroscopically, thorium dioxide-related AGS was divided into four types as follows: diffuse micronodular,...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1985-09-01 00:00:00
abstract：:The College of American Pathologists and the American Society of Human Genetics offer a proficiency testing program in clinical cytogenetics. Two hundred twenty-five laboratories now provide data for this survey, which was begun in 1986. Challenges have consisted of photographed metaphases, fixed lymphoblastoid cell s...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1993-08-01 00:00:00
abstract：:A 50-year-old man presented with a lung mass in the left upper lobe, which was shown by electron microscopy to be a thymoma. There was no evidence of a mediastinal mass. The lymphocytes of the tumor reacted with monoclonal antibody T101, a pan T-cell marker, and with OKT8. B1 and B2 surface antigens characteristic of ...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1987-11-01 00:00:00
abstract：:Crystal-storing histiocytosis is an uncommon form of nonneoplastic histiocytic proliferation that in most patients complicates an underlying lymphoproliferative or plasma cell disorder. Lung is a common site of involvement in patients with localized disease. We present an illustrative example from a 54-year-old woman ...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：10.5858/arpa.2013-0252-CR
更新日期：2013-09-01 00:00:00
abstract：:A 38-year-old woman suffered rapid onset of renal failure between 11 and 15 months after undergoing a jejunoileal bypass for morbid obesity. Microscopic examination of renal biopsy specimens revealed oxalosis and severe tubulointerstitial nephritis. Immunofluorescence microscopy disclosed linear staining of tubular ba...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1981-07-01 00:00:00
abstract：:An adenoma of type 2 pneumocytes in the periphery of the left lung was an incidental finding at the autopsy of a 28-year-old woman. Light microscopy revealed a predominantly papillary growth with oncocytic features. Ultrastructurally, multilaminated bodies and many mitochondria were found in the tumor cells and tubula...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1991-08-01 00:00:00
abstract：:We report a case of cytokeratin-positive, CD45-negative primary polymorphic centroblastic lymphoma of the adrenal gland. Additional immunostaining, which demonstrated positivity for CD20 and kappa light chain, as well as detection of the monoclonal rearrangement of the immunoglobulin heavy chain gene, helped to establ...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/0003-9985(2001)125<1104:CPCNPC>2.0.CO;2
更新日期：2001-08-01 00:00:00
abstract：CONTEXT:- Although many mesotheliomas are related to asbestos exposure, not all are, and there is increasing information on other causes of mesothelioma. OBJECTIVE:- To provide a review of non-asbestos causes for malignant mesothelioma. DATA SOURCES:- Review of relevant published literature via PubMed and other searc...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：10.5858/arpa.2017-0365-RA
更新日期：2018-06-01 00:00:00
abstract：CONTEXT:Methods to improve surgical pathology patient safety include measuring the frequency of error in specific steps of the surgical pathology testing process, root cause analysis of active and latent components, and implementation of quality improvement initiatives. OBJECTIVE:To determine the frequency and cause o...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.5858/arpa.2011-0334-OA
更新日期：2011-11-01 00:00:00
abstract：CONTEXT:Case reports have described detection of candidemia by examination of peripheral blood smears. It is unclear whether this method has wider applicability for early detection of fungemia. OBJECTIVE:To determine the sensitivity of smear review for detecting candidemia. DESIGN:Normal and cytopenic blood was spike...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/1543-2165(2007)131[97:SOPBSR]2.0.CO;2
更新日期：2007-01-01 00:00:00
abstract：:We report the case of a patient treated with a combination of fludarabine and cyclophosphamide after suffering from B-cell chronic lymphocytic leukemia for 10 years. Three months after treatment, the patient presented with an unusual association, not previously reported in the literature: Richter syndrome (monotypic E...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/1543-2165(2006)130[1227:CEVLBL]2.0.CO;2
更新日期：2006-08-01 00:00:00
abstract：:We reviewed 36 body fluid specimens from 18 patients with Hodgkin's disease (HD) to characterize the cytologic features of HD as seen in Wright-Giemsa (WG)-stained cytocentrifuge preparations, and to compare diagnostic agreement between WG- and Papanicolaou-stained samples. Slides were examined independently by two pa...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1988-06-01 00:00:00
abstract：CONTEXT:Correction factors have been proposed for estimating true potassium concentrations in blood samples with evidence of in vitro hemolysis. OBJECTIVE:We used 2 different models of true (ie, nonsimulated) in vitro hemolysis to evaluate the clinical utility of correction factors for estimating potassium concentrati...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/1543-2165-133.6.960
更新日期：2009-06-01 00:00:00
abstract：OBJECTIVE:It has been suggested that localized Langerhans cell histiocytosis may represent an exaggerated form of a proliferative process that has been reported in a few patients with myasthenia gravis. To evaluate the relationship between thymic Langerhans' cell proliferation and myasthenia gravis, we analyzed a rare ...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1997-02-01 00:00:00
abstract：:The prune belly syndrome is a well-recognized entity consisting of deficient abdominal musculature, cryptorchid testes, and urinary tract abnormalities most consistent with an obstructive phenomenon. However, an obstructive lesion has not been consistently identified in previously reported cases. Retrospective review ...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1987-02-01 00:00:00
