Abstract:
:In the past decade, cellular immunophenotyping has become a new discipline in diagnostic haematology and immunology, and is invaluable in the rapid diagnosis of leukaemia and monitoring disease progression in human immunodeficiency virus infected individuals. The introduction of bench top flow cytometers has meant that immunophenotyping is now also used for the quantitation of CD34(+) peripheral blood stem cells (PBSCs) to ensure the correct timing and adequacy of haematopoietic progenitor cell harvests. Furthermore, flow cytometry has become an important tool for the counting of leucocytes in blood components after leucocyte depletion. Because this new discipline is now such a major diagnostic and prognostic tool in the clinical arena, its use must be subject to both internal and external quality control. Such a requirement was first recognised as early as 1986 when an Inter-Regional Quality Assessment Scheme (IRQAS) was initiated for laboratories that undertook the immunocytochemical diagnosis of leukaemia using the alkaline phosphates anti-alkaline phosphatase technique. This programme began with around 25 UK laboratories. In 1990, after the introduction of two more programmes (one for leukaemia diagnosis using UV microscopy and latterly flow cytometry, and one for the enumeration of CD4(+) T cells) the IRQAS achieved UK National External Quality Assessment Scheme (UK NEQAS) status and changed its title to UK NEQAS for Leucocyte Immunophenotyping. In the past decade the once small IRQAS programme has evolved into the largest international scheme of its kind, providing EQA to over 650 laboratories world wide for leukaemia immunophenotyping, lymphocyte subset analysis, PBSCs, and more recently low level leucocyte counting. Over the years, this EQA programme has highlighted important problems, such as the inappropriate use of fluorochromes and antibody titre, and the identification of effective gating strategies, all of which have contributed directly to the high interlaboratory variations seen in cellular immunophenotyping. Furthermore, particularly in absolute counting of lymphocyte subsets, PBSCs, and the enumeration of low numbers of leucocytes, UK NEQAS for Leucocyte Immunophenotyping programmes have been instrumental in highlighting the differences that occur between single and dual platform flow cytometric technologies. As a result of these findings, UK NEQAS for Leucocyte Immunophenotyping has helped to reduce the variation seen on an interlaboratory basis and enabled greater standardisation both in the UK and internationally. These advances have been attributable to the development, by UK NEQAS for Leucocyte Immunophenotyping, of a unique whole blood stabilising process that ensures the retention of the physical characteristics (both light scatter and antigenic profile) required of cells to ensure successful cellular immunophenotyping. This major technological advancement has enabled the distribution of specimens for EQA purposes on a global scale that have minimal matrix effect and behave in a manner identical to fresh blood for several months after stabilisation.
journal_name
J Clin Patholjournal_title
Journal of clinical pathologyauthors
Reilly JT,Barnett Ddoi
10.1136/jcp.54.7.508keywords:
subject
Has Abstractpub_date
2001-07-01 00:00:00pages
508-11issue
7eissn
0021-9746issn
1472-4146journal_volume
54pub_type
杂志文章,评审abstract::A polyclonal antiserum, produced in sheep and reactive against purified human leucocyte elastase, has been applied to paraffin sections from a range of human tissues by means of the indirect immunoperoxidase method. Striking and consistent results have been obtained. Normal or inflammatory granulocytes were intensely ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.37.10.1114
更新日期:1984-10-01 00:00:00
abstract::Haemoglobin, haematocrit, and plasma iron values were estimated on blood samples collected from 100 male and 113 female National Blood Transfusion Service blood donors, and from 83 male and 66 female age-matched control subjects. No significant differences in any of these values were found to exist between the donors ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.22.6.680
更新日期:1969-11-01 00:00:00
abstract::A time and temperature relationship required to destroy certain pathogenic organisms in milk feeds has been ascertained. A method of achieving this destruction by using steam at atmospheric pressure is described, and a routine method for use in milk kitchens is suggested. ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.19.4.321
更新日期:1966-07-01 00:00:00
abstract::An investigation into the noise levels in a clinical chemistry laboratory has been carried out. It was shown that although the levels were insufficient to cause damage to hearing, they exceeded the criteria of acceptability for offices and workshops. ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.23.5.445
更新日期:1970-07-01 00:00:00
abstract::Serum alanine aminotransferase (ALT) and gamma-glutamyltransferase (gamma-GT) activities were measured in over 2000 north London blood donors. The results were compared with those from the United States. The percentage of the total donor population with ALT activities above 40 IU/l in 1986 was greater than that found ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.40.11.1340
更新日期:1987-11-01 00:00:00
abstract:BACKGROUND:The Sysmex XN haematology instrument performs automatic reflex testing, depending on sample results. A nucleated red blood cell (NRBC) count is provided on all samples. The instrument has a smaller footprint (34%) than previous Sysmex XE analysers. METHODS:An evaluation comparing all results to the Sysmex X...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2012-200930
更新日期:2012-11-01 00:00:00
abstract:AIMS:Apoptosis in prostate cancer was evaluated after three months of combined endocrine therapy to investigate the association with tumour grade, tumour stage, and the immunohistochemical detection of p53 and bcl-2 in tumour cells before and after therapy. METHODS:Twenty six formalin fixed, paraffin wax embedded core...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.50.5.384
更新日期:1997-05-01 00:00:00
abstract::A technique is described whereby inclusion-bearing cells identified by light microscopy in stained smears of urinary sediment were reprocessed for examination in the electron microscope. The nuclei of the abnormal cells were found to contain numerous virus particles, 35 nm in diameter, which morphologically resembled ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.30.11.1015
更新日期:1977-11-01 00:00:00
abstract::An automated method for the microbiological assay of vitamin B(12) is described. A chloramphenicol-resistant strain of Lactobacillus leichmannii is used as the test organism and this eliminates the need for sterilization or aseptic addition. Precipitation of the serum protein is avoided by dilution of the serum with a...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.26.7.494
更新日期:1973-07-01 00:00:00
abstract::Clonality analysis of the immunoglobulin heavy chain (IgH) gene is helpful in identifying malignant B cell infiltrates in the bone marrow and is usually carried out on separate aspirates or on the same formalin-fixed decalcified bone marrow specimen. To determine whether the removal of the decalcification step would i...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2005.030379
更新日期:2006-10-01 00:00:00
abstract:AIMS:The incidence of RAS/RAF/PI3KA and TP53 gene mutations in colorectal cancer (CRC) is well established. Less information, however, is available on other components of the CRC genomic landscape, which are potential CRC prognostic/predictive markers. METHODS:Following a previous validation study, ion-semiconductor n...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2015-203403
更新日期:2016-09-01 00:00:00
abstract:AIMS:The signalling system of phosphoinositides (PIs) is involved in a number of cell and tissue functions including membrane trafficking, ion channel activity, cell cycle, apoptosis, differentiation and cell and tissue polarity. Recently, a role in cell migration was hypothesised for PI and related molecules including...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2011-200096
更新日期:2011-10-01 00:00:00
abstract::Purulent exudate from 28 cases of Bartholin's abscess were examined for aerobic, anaerobic, and microaerophilic bacteria. Three cases gave no bacterial growth, five cases grew facultative bacteria only, and a further three grew a mixture of facultative and anaerobic bacteria. One case gave a pure growth of a microaero...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.30.11.1025
更新日期:1977-11-01 00:00:00
abstract::Accurate diagnosis of Clostridium difficile infection (CDI) is essential for optimal treatment, prevention and control. There are two reference assays for CDI diagnosis: the cell cytotoxicity assay (CCTA) and toxigenic culture (TC). Importantly, these tests actually detect different targets: CCTA detects the presence ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2010.080135
更新日期:2011-01-01 00:00:00
abstract::In an investigation of the in vitro phagocytic and microbicidal function of granulocytes collected by filtration leucapheresis (FL) from 18 donors and by discontinuous flow centrifugation leucapheresis (DFC) from six donors, comparison was made with the function of granulocytes obtained from the same donors by venepun...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.36.5.586
更新日期:1983-05-01 00:00:00
abstract::The calcium, vitamin D, and osteocalcin concentrations were investigated in 17 patients with anorexia nervosa. Serum 25-hydroxyvitamin D (25 OHD) concentrations below normal were observed in 15 (88%); only two patients has serum 1,25 dihydroxycholecalciferol (1,25(OH)2D) concentrations below normal. Serum parathyroid ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.41.2.195
更新日期:1988-02-01 00:00:00
abstract::A Cyto-Tek staining machine designed for Papanicolau staining of cervical smears has been adapted for auramine staining of smears of sputum and other clinical specimens for acid-fast bacilli. The results compared favourably with those obtained by a manual method of staining. Contamination of negative smears by acid-fa...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.31.2.185
更新日期:1978-02-01 00:00:00
abstract:AIMS:To evaluate whether endometrial pathology is more likely to be diagnosed in gynaecologically symptomatic rather than in gynaecologically asymptomatic postmenopausal breast cancer patients with tamoxifen treatment; and to evaluate the possible influence of various clinical factors on the incidence of endometrial pa...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.52.4.278
更新日期:1999-04-01 00:00:00
abstract::A study has been made of 523 strains of staphylococci on the basis of biological properties, phage typing, and serology. The value of serology in the identification of pathogenic staphylococci has been assessed. ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.23.4.370
更新日期:1970-05-01 00:00:00
abstract::The sensitivity patterns to a number of antibiotic-impregnated discs of 126 strains of Gram-negative anaerobes and 36 strains of Gram-positive non-sporing anaerobes from various sources have been examined. The sensitivity patterns shown by Bacteroids fragilis and Bacteroides melaninogenicus were useful for the rapid i...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.28.5.388
更新日期:1975-05-01 00:00:00
abstract::Reticulin antibodies have been classified by immunofluorescence into five types reacting with distinct antigens of intra- and extracellular components in mesenchyme. Two types of fibrillar antigens can be distinguished on the basis of the staining patterns, anatomical distribution, and species specificity. A third ant...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.26.11.841
更新日期:1973-11-01 00:00:00
abstract:AIMS:To set up a network for remote consultation using static imaging telepathology via Internet connection between pathologists in different European countries, and to collect some numerical and subjective impressions on the usefulness of this form of telepathology. METHODS:A static image remote consultation network ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.54.10.752
更新日期:2001-10-01 00:00:00
abstract::Hereditary spherocytosis is a relatively common haematological disorder and will be encountered by all haematologists. The abundance of new information, dealing principally with molecular and genetic aspects of pathophysiology, is beginning to have implications for its investigation and management. While these advance...
journal_title:Journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1136/jcp.44.6.441
更新日期:1991-06-01 00:00:00
abstract:AIMS:To investigate whether cholesterol and lactate dehydrogenase (LDH) measurements in fluids are more sensitive and specific markers for differentiating between exudates and transudates, as confirmed clinically, than the measurement of fluid total protein concentrations alone. PATIENTS/METHODS:Serum, pleural fluid, ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.55.1.69
更新日期:2002-01-01 00:00:00
abstract:INTRODUCTION:Cellular blue naevi (CBN) measure 1-2 cm in diameter and affect the dermis, occasionally extending into the subcutaneous fat. The case of a 14-year-old boy with a giant CBN (GCBN) involving the right half of the face, the jugal mucosa and the lower eyelid with a tumour that had infiltrated the bone and the...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2005.029488
更新日期:2007-01-01 00:00:00
abstract::Non-alcoholic fatty liver disease (NAFLD) encompasses a histological spectrum of liver disease, from simple steatosis through to cirrhosis. As the worldwide rates of obesity have increased, NAFLD has become the commonest cause of liver disease in many developed countries, affecting up to a third of the population. The...
journal_title:Journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1136/jclinpath-2013-201620
更新日期:2013-12-01 00:00:00
abstract::Sera from 5171 inpatients have been tested for HBAg and HBAb during the 18-month period ending in December 1972. The incidence of HBAg (0.116%) was similar to that in blood donors (0.119%) in the same area, being tested for the first time by the same technique. By contrast the incidence of HBAb in patients (0.271%) wa...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.27.2.125
更新日期:1974-02-01 00:00:00
abstract:AIMS:To report the clinicopathological characteristics of patients with ocular adnexal marginal zone B cell lymphoma (MZBL) with IgG4-positive plasma cells. METHODS:114 biopsy samples of ocular adnexal MZBLs were analysed. MZBLs with IgG4-positive plasma cells were included when the IgG4:IgG ratio was >40% (IgG4-relat...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2010.082156
更新日期:2010-12-01 00:00:00
abstract::A method is described for assessing thyroid status using Sephadex column chromatography of serum samples with added (125)I triiodothyronine. The method is simple and inexpensive. It gave a correct diagnostic result in 97% of 258 euthyroid, 90% of 80 hyperthyroid, 78% of 59 hypothyroid, and 67% of 50 euthyroid, ill pat...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.20.2.170
更新日期:1967-03-01 00:00:00
abstract:AIMS:To evaluate a recently developed digital slide and virtual microscope system, and to compare this method with optical microscopy on routine gastrointestinal biopsy specimens in both local and remote access modes. METHODS:A fully computer controlled commercial microscope was used. The scanning program included obj...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.56.6.433
更新日期:2003-06-01 00:00:00