Abstract:
AIMS:To assess the relevance of genetic variants of hepatitis B virus (HBV) and to demonstrate the usefulness of the polymerase chain reaction (PCR) in cases of HBV diagnostic difficulty. METHODS:Five serum samples from patients that presented diagnostic difficulty in routine laboratories were sent to a research laboratory for PCR, and if appropriate, S gene sequencing, in vitro expression, and antigenic analysis. RESULTS:The demonstration of HBV in serum by PCR allowed a definitive diagnosis of current infection. One serum sample with poor reactivity in a diagnostic assay had a minor hepatitis B surface antigen (HBsAg) variant and another with very poor reactivity had multiple variants of HBsAg. Transient HBsAg reactivity was observed in a recently vaccinated patient. A hepatitis Be antigen (HBeAg) false positive reaction was noted in a patient from a well defined risk group for HBV. One patient who was strongly HBsAg/HBeAg positive, but anti-hepatitis B core antibody negative, was viraemic. CONCLUSIONS:PCR may become the gold standard for the diagnosis of current HBV infection. HBV variants are responsible for a proportion of diagnostically difficult cases. Modification of commercial assays is necessary to increase the sensitivity of detection of such variants.
journal_name
J Clin Patholjournal_title
Journal of clinical pathologyauthors
van Deursen FJ,Hino K,Wyatt D,Molyneaux P,Yates P,Wallace LA,Dow BC,Carman WFdoi
10.1136/jcp.51.2.149subject
Has Abstractpub_date
1998-02-01 00:00:00pages
149-53issue
2eissn
0021-9746issn
1472-4146journal_volume
51pub_type
杂志文章abstract::An anaerobic incubator was compared with a standard jar system for the isolation of anaerobes from clinical material. Seventy specimens were selected as likely to yield anaerobes: 342 different anaerobes were isolated in the incubator and 347 in anaebrobic jars. These included Bacteroides spp (43%), Peptococcus spp (2...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.35.10.1158
更新日期:1982-10-01 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:BACKGROUND:Oncogenicity of human papillomavirus (HPV) DNA in premalignant and malignant uterine cervical diseases is mainly induced by E6/E7 open reading frame (ORF). The presence of an oncogenic HPV DNA may be a diagnostic marker for the detection of cytologically negative smears. AIMS:To evaluate an original polymer...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.51.1.38
更新日期:1998-01-01 00:00:00
abstract::This review surveys the staging systems used for the classification of colorectal carcinomas, including the TNM system, and focuses on the assessment of the nodal stage of the disease. It reviews the quantitative requirements for a regional metastatic work up, and some qualitative features of lymph nodes that may help...
journal_title:Journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1136/jcp.56.5.327
更新日期:2003-05-01 00:00:00
abstract::The presence of serum agglutinins and precipitins to Candida albicans in men and women who had impaired bladder function following spinal injury is compared with that in other patients in hospital and in apparently fit men and women. Antibody levels which have commonly been regarded as significant were found in 35 of ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.27.9.722
更新日期:1974-09-01 00:00:00
abstract:AIM:Definitive distinction between low-grade astrocytoma and astrogliosis is a long-standing difficulty due to their similar histopathological characteristics. To clarify differences in biological significance, this study focused on various components of the cell cycle machinery and proliferation as key parameters, com...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2007.051961
更新日期:2008-03-01 00:00:00
abstract::The clinical and pathological findings in 23 patients with ischaemic lesions of the alimentary tract (ischaemic enterocolitis) are described. These are compared with findings in 13 patients with occlusive thrombosis of the superior mesenteric artery. The pathological features distinguishing the two conditions are disc...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.25.2.99
更新日期:1972-02-01 00:00:00
abstract::Serum total calcium was measured in 1693 patients during a four-month period. We examined the effects of adjustment for albumin concentration on the interpretation of single measurements of serum total calcium and on the variation of series of measurements in individual patients. Markedly abnormal total calcium concen...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.32.1.56
更新日期:1979-01-01 00:00:00
abstract::To determine the functional importance of the low B12 and red cell folate concentrations repeatedly observed in the elderly 200 consecutive patients admitted to a geriatric unit were studied. Forty six of the patients had low serum concentrations of B12 (15), red cell folate (26), or both (five). Serum B12 and red cel...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.38.10.1179
更新日期:1985-10-01 00:00:00
abstract::Of the first 166 heart and 15 heart and lung transplant recipients at Papworth Hospital, Cambridge, who survived for more than one month after transplantation, 162 were investigated for cytomegalovirus (CMV) infection by serological methods. Altogether, 73 (45%) developed CMV infection after transplantation: 30 (18.5%...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.41.6.660
更新日期:1988-06-01 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:To investigate the serological cross reaction between legionella and campylobacter using the rapid microagglutination test (RMAT). METHODS:Serum samples from 49 patients with campylobacter infection were tested for legionella antibodies using the indirect fluorescent antibody test (IFAT) and the RMAT. Serum sampl...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.49.7.584
更新日期:1996-07-01 00:00:00
abstract:AIMS:To investigate the expression of the placental cell-specific associated proteins in infantile haemangioma (IH). METHODS:Immunohistochemical staining was used to investigate the expression of human chorionic gonadotrophin (hCG), human placental lactogen (hPL), human leucocyte antigen-G (HLA-G), cytokeratin 7 (CK7)...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2011-200191
更新日期:2011-10-01 00:00:00
abstract:AIMS:To determine whether the monoclonal antibody (MoAb) 83D4, previously shown to be highly specific for carcinoma cells, can be used as an immunocytological marker to discriminate between benign and malignant cells in serous effusions; and to test for a correlation between expression of the antigen reacting with MoAb...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.48.5.433
更新日期:1995-05-01 00:00:00
abstract::Sera obtained from 34 men with Chlamydia trachomatis positive non-gonococcal urethritis, 34 men with C trachomatis negative non-gonococcal urethritis, 42 women with acute salpingitis, 38 healthy women, and 34 healthy men were studied for the presence of specific serum C trachomatis IgA and IgG antibodies. Serological ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.37.6.686
更新日期:1984-06-01 00:00:00
abstract:INTRODUCTION:The role of single mutations has been extensively studied myelodysplastic syndromes (MDS), but the impact of genetic aberrations in the context of other mutations is less well understood. BCOR is an epigenetic transcriptional corepressor. In MDS, BCOR mutations are rare and certain mutations are associated...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2019-206132
更新日期:2020-04-01 00:00:00
abstract:AIMS:To assess the clinical efficacy of diagnostic procedures for breast cancer at a teaching hospital using internal auditing tools and quality control measures. METHODS:A retrospective assessment of 500 patients who underwent core needle biopsy (wide-bore needle biopsy; WBN) of palpable or non-palpable breast nodes ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2011-200057
更新日期:2011-10-01 00:00:00
abstract:BACKGROUND:Cardiac remodelling after acute myocardial infarction (AMI) is characterised by molecular and cellular mechanisms involving both left and right ventricles, and biventricular failure identifies patients with an extremely unfavourable prognosis. AIMS:To assess whether a link exists between increased myocardia...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.56.9.672
更新日期:2003-09-01 00:00:00
abstract:BACKGROUND:EpCAM is an adhesion molecule of the basolateral membranes in a variety of epithelial cells. Over-expression has been detected in many epithelial tumours and has been associated with high stage, high grade and a worse survival in some tumour types. AIMS:To assess the prognostic value of EpCAM in urothelial ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2007.049460
更新日期:2008-03-01 00:00:00
abstract::The relationship between the intensity of the delayed hypersensitivity reaction and the dose of antigen used for its elicitation change with time after sensitization. At three weeks the reactions to 100 mug of egg albumen were little different from those to 1 mug but at 14 weeks 100 mug gave much stronger reactions. T...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.26.9.687
更新日期:1973-09-01 00:00:00
abstract:AIMS:The miR-9 family microRNAs (miRNAs) are tumour suppressor miRNAs implicated in carcinogenesis. We postulated that miR-9-1, miR-9-2 and miR-9-3 may be inactivated by aberrant promoter methylation in multiple myeloma (MM). METHODS:Methylation of miR-9-1, miR-9-2 and miR-9-3 was studied by methylation-specific PCR (...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2014-202817
更新日期:2015-07-01 00:00:00
abstract:BACKGROUND/AIMS:The programmed cell death receptor 1 (PD-1) checkpoint inhibitor, nivolumab, has been approved for the treatment of metastatic renal cell carcinoma (RCC). However, the understanding of the expression and distribution of PD ligand 1 (PD-L1) in the tumour immune microenvironment and its prognostic role in...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2019-206092
更新日期:2020-08-01 00:00:00
abstract::Serial dilutions of Clostridium difficile culture filtrates were incubated overnight with HeLa cell monolayers. Cells were fixed in formalin, stained with crystal violet, rinsed, and drained. Cell rounding could be observed microscopically in the stained monolayers. Absorbance of the retained dye on monolayers in the ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.39.6.672
更新日期:1986-06-01 00:00:00
abstract::A case of florid rheumatoid heart disease with complete heart block is described, and the histopathology of the atrioventricular conducting tissue is described in detail. ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.23.7.623
更新日期:1970-10-01 00:00:00
abstract::The effect of acute hypoglycaemia on platelet function was examined in patients undergoing an insulin stress test. Enhanced platelet aggregation was observed in all cases but platelet count, platelet adenine nucleotides, and the plasma level of von Willebrand factor were unchanged overall. The onset of the hypoglycaem...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.32.5.434
更新日期:1979-05-01 00:00:00
abstract::A case of extramedullary myeloblastic transformation of chronic myeloid leukaemia is reported. This was characterised by an unusual clinical and haematological course and showed a unique cytogenetic pattern. ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.38.7.831
更新日期:1985-07-01 00:00:00
abstract::Two cases of interstitial pneumonia are described. They were characterized by mononuclear cell infiltration of the alveolar walls and protein-rich exudate into the alveolar cavities, with localized hyaline membrane formation. Coxsackie B5 virus was isolated from the lungs of both patients at necropsy. ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.18.6.743
更新日期:1965-11-01 00:00:00
abstract::The macrophage markers non-specific esterase, alpha 1-antitrypsin, alpha 1-antichymotrypsin, and lysozyme were compared with conventional microglial and macrophage stains in the human central nervous system. In a series of specimens from cases of head trauma, conventionally fixed and embedded, the modified Weil-Davenp...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.37.2.150
更新日期:1984-02-01 00:00:00
abstract::The incidence of placenta accreta, defined as the abnormal adherence of the placenta to the uterine wall, has been increasing alarmingly in the developed as well as the developing world. There is considerable maternal morbidity and mortality related to the condition. The pathophysiology focuses on the balance between ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1136/jcp.2008.055202
更新日期:2008-12-01 00:00:00
abstract::Cutaneous melanoma causes most of the skin cancer deaths in the USA. Melanoma is the fifth most common cancer among men and the sixth most common cancer among women. The incidence of melanoma has risen sharply over the past three decades. In this review, which is informed by our extensive experience at a large cancer ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1136/jclinpath-2018-205417
更新日期:2019-04-01 00:00:00