Abstract:
AIMS/BACKGROUND:Telomerase is an enzyme that is expressed in most human neoplasms and is associated with tumour immortality. Determination of the point in neoplastic transformation at which telomerase is expressed may aid the understanding of tumour pathogenesis and progression. Despite numerous reports on telomerase, few studies have investigated its expression in high grade glial tumours. These studies, performed on archival banked, single brain tumour specimens, have shown conflicting results for oligodendrogliomas and unexpectedly negative results for telomerase expression in high grade astrocytomas, with one third to one half of glioblastoma multiformes being negative. METHODS:34 rapidly banked glioma specimens taken from patients undergoing gross total surgical resection of their tumours were studied. Telomerase expression was assessed across 3-8 sampled regions from each tumour by the telomeric repeat amplification protocol (TRAP) assay. Matched mirror image tissue samples were taken for histological analysis of tissue adequacy, statistical correlation of telomerase with tumour histological features, Mib-1 (a marker for cell cycling) labelling, and p53 immunohistochemistry. RESULTS:All five well differentiated oligodendrogliomas were homogeneously telomerase negative and two of three untreated anaplastic oligodendrogliomas were homogeneously positive. In contrast, 10 of 14 high grade astrocytomas showed heterogeneity for telomerase expression across the multiple regions sampled. All glioblastoma multiformes and two of three anaplastic astrocytomas showed at least one region positive for telomerase. When test samples were individually assessed in both oligodendrogliomas and high grade astrocytomas, telomerase expression was associated with Mib-1 labelling (p < 0.001). For the entire group, telomerase expression was associated with grade of tumour, age of patient, and vascular endothelial proliferation (all p < 0.001). CONCLUSIONS:This regional study clarifies that all glioblastoma multiformes are at least focally positive and that telomerase expression correlates with tumour grade in oligodendrogliomas. Homogeneity versus heterogeneity for telomerase expression across multiple regions of oligodendrogliomas versus high grade astrocytomas may provide important preclinical data on the use of antitelomerase agents in these adult glial tumours.
journal_name
J Clin Patholjournal_title
Journal of clinical pathologyauthors
Kleinschmidt-DeMasters BK,Hashizumi TL,Sze CI,Lillehei KO,Shroyer AL,Shroyer KRdoi
10.1136/jcp.51.4.284subject
Has Abstractpub_date
1998-04-01 00:00:00pages
284-93issue
4eissn
0021-9746issn
1472-4146journal_volume
51pub_type
杂志文章abstract::Pseudomonas cepacia (Ps. multivorans) can become adapted to a 1 in 30 dilution of Savlon hospital concentrate in distilled water, and can multiply in it. The organism so adapted did not survive in Savlon of the same strength made with hard tap water (pH 7.2). This effect was due to the difference of pH between the two...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.24.8.708
更新日期:1971-11-01 00:00:00
abstract::The results of the measurement of vitamin B(12) absorption by counting the radioactivity of 5 ml. serum obtained eight to 10 hours after the ingestion of an oral dose of 0.5 mug. vitamin B(12) labelled with 0.5 muc. (57)Co are compared with those obtained with the urinary excretion (Schilling) test. Inadequate urine c...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.19.6.606
更新日期:1966-11-01 00:00:00
abstract::Two cases of Wegener's granulomatosis are described in which the early and predominating lesions were found in the breast. The histological features of breast necrosis with granulomatous inflammation and widespread vasculitis in the breast in the absence of any demonstrable pathogens enabled a presumptive diagnosis to...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.24.4.343
更新日期:1971-05-01 00:00:00
abstract:AIMS:To assess changes in volume and complexity of cellular pathology workload after clinical service reorganisation and alterations in pathology reporting practices, and to identify objective measures of change applicable to all cellular pathology departments. The ear, nose, and throat (ENT), head and neck (HN) specia...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.57.1.22
更新日期:2004-01-01 00:00:00
abstract::A case of idiopathic acquired sideroblastic anaemia transforming to acute myelofibrosis is reported. The appearance of atypical megakaryocytic proliferation in idiopathic acquired sideroblastic anaemia may presage the development of an acute myelofibrotic phase of this usually chronic disease. ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.37.9.1032
更新日期:1984-09-01 00:00:00
abstract::Sera can produce nuclear or perinuclear immunofluorescence staining in neutrophils which may be caused by antibodies with differing antigenic specificities. These include perinuclear antineutrophil cytoplasmic antibodies (P-ANCA), granulocyte specific antinuclear antibody (GS-ANA), and antinuclear antibody (ANA). Ther...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.52.6.475
更新日期:1999-06-01 00:00:00
abstract:BACKGROUND:Clinical outcome in patients with diffuse large B cell lymphomas (DLBCL) is highly variable and poorly predictable. Microarray studies showed that patients with DLBCL with a germinal centre B cell-like (GCB) phenotype have a better prognosis than those with an activated B cell-like (ABC) phenotype. The BMI1 ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2006.038752
更新日期:2007-02-01 00:00:00
abstract:AIMS:To determine the causes of ovarian granulomatous inflammation and to discuss the differential diagnoses. METHODS:The pathological features of all ovarian granulomas identified by pathology SNOMED coding in Northern Ireland over a 13 year period were reviewed. Case notes of patients were also reviewed. RESULTS:Th...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.50.4.324
更新日期:1997-04-01 00:00:00
abstract::A case of cryptococcal meningo-encephalitis is described. Treatment with the fungicidal agent amphotericin B resulted in temporary improvement, but the patient relapsed and died 17 months after diagnosis. The pathology and treatment of the disease are discussed. ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.18.3.296
更新日期:1965-05-01 00:00:00
abstract::The Microring YT is a commercial system for identifying clinical yeast isolates. The system uses a series of discs impregnated with inhibitory agents mounted on a ring. The pattern of growth and inhibition produced provides a six digit code which can be compared with a table provided by the manufacturer. The performan...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.44.9.775
更新日期:1991-09-01 00:00:00
abstract::In an era when immunohistochemistry (IHC) is increasingly depended on for histological subtyping, and IHC-determined biomarker informing rapid treatment choices is on the horizon; reproducible, quantifiable techniques are required. This study aimed to compare automated IHC scoring to quantify 6 DNA damage response pro...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2020-207081
更新日期:2020-11-19 00:00:00
abstract::Histological assessment of melanocytic naevi constitutes a substantial proportion of a dermatopathologist's daily workload. Although they may be excised for cosmetic reasons, most lesions encountered are clinically atypical and are biopsied or excised to exclude melanoma. Although dysplastic naevi are most often encou...
journal_title:Journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1136/jcp.2003.008516
更新日期:2004-11-01 00:00:00
abstract:AIM:To ascertain the views of Scottish hospital laboratory users on aspects of regional and supraregional biochemical services offered by the Institute of Biochemistry at Glasgow Royal Infirmary. METHODS:A questionnaire was circulated asking questions or inviting opinions under various headings, including current patt...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.47.5.395
更新日期:1994-05-01 00:00:00
abstract::Cytological diagnosis in a series of 153 skin lesions is presented. The diagnosis in each case has been compared with the clinical assessment and, where available, the biopsy result (85 lesions). Of 131 basal cell carcinomas, a cytological diagnosis was possible in 124 while biopsyl failed to identify two of the 73 le...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.32.4.361
更新日期:1979-04-01 00:00:00
abstract::During each of the four-year periods 1971-1975 and 1975-1979, the annual incidence of hepatitis B infection has been assessed in 56 patients with haemophilia A by measuring plasma HBsAg, anti-HBs and anti-HBc levels. Infection rates of 7% and 9.5% per annum respectively were observed for each four-year period despite ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.36.5.577
更新日期:1983-05-01 00:00:00
abstract:AIM:To investigate the natural history of patients with non-alcoholic steatohepatitis by means of a prospective histological study. METHODS:One thousand five hundred and seventy one patients underwent liver biopsy at the Western Infirmary in Glasgow during the 10 year period 1985 to 1994. All biopsies were reported by...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.55.9.689
更新日期:2002-09-01 00:00:00
abstract::This review of the histomorphometry of bone outlines methods of biopsy and processing of specimens in the laboratory, the basic principles of morphometry, and the measurements made in order to obtain estimates of the proportional volumes and surfaces occupied by different components of bone. Variability such as that b...
journal_title:Journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1136/jcp.36.12.1323
更新日期:1983-12-01 00:00:00
abstract:OBJECTIVE:To study the expression of nuclear beta-catenin and Ki-67 in patients with normal gestation products (NGP), complete hydatidiform moles (CHM), and choriocarcinoma to elucidate their roles in carcinogenesis and their interrelations. METHODS:Expression of nuclear beta-catenin and Ki-67 was studied by immunohis...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2005.026666
更新日期:2006-04-01 00:00:00
abstract::This study was undertaken to determine the interrelations between clinico-biochemical parameters and hepatic morphology in markedly obese patients. One hundred and sixty-six women and 52 men comprise this series. There was a statistically significant association of carbohydrate metabolism disturbance with increasing a...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.26.10.776
更新日期:1973-10-01 00:00:00
abstract:BACKGROUND:The Wnt pathway is important in cell signalling transduction and is involved in the pathogenesis of multiple tumour types. A comprehensive analysis of the expression of Wnt signalling pathway proteins in mammary phyllodes tumours (PTs) has not been previously performed. AIMS:To evaluate the immunohistochemi...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2009.066977
更新日期:2009-11-01 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::An indirect method of an enzyme-linked immunosorbent assay (ELISA) is described to assess the reactivity of antisera used for the identification of peptide hormone producing cells by immunocytochemistry. Compared with radioimmunoassay and immunodiffusion, the ELISA method has the advantages of simplicity and sensitivi...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.36.4.406
更新日期:1983-04-01 00:00:00
abstract::In situ hybridisation, immunohistochemistry, and morphological analysis for the detection of cytomegalovirus (CMV) were compared in routinely processed tissue sections from a patient with acquired immune deficiency syndrome (AIDS) and widespread CMV infection. Both in situ hybridisation and immunohistochemistry with t...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.41.9.1005
更新日期:1988-09-01 00:00:00
abstract:AIMS:The authors previously demonstrated that nasal mucus cyclic adenosine 3', 5'-monophosphate (cAMP) and cyclic 3', 5'-guanosine monophosphate (cGMP) were lower in patients with smell and taste dysfunction than in normal individuals. To learn more about these differences this study related levels of nasal mucus cAMP ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2012-200698
更新日期:2012-05-01 00:00:00
abstract::Two diabetic patients with symptomatic urinary tract infection by Torulopsis glabrata were successfully treated with two-week courses of 5-fluorocytosine. ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.27.1.50
更新日期:1974-01-01 00:00:00
abstract::Superficial inflammatory dermatoses are very common and comprise a wide, complex variety of clinical conditions. Accurate histological diagnosis, although it can sometimes be difficult to establish, is essential for clinical management. Knowledge of the microanatomy of the skin is important to recognise the variable h...
journal_title:Journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1136/jcp.2005.027151
更新日期:2005-12-01 00:00:00
abstract::The number of granulocyte/macrophage colonies grown in vitro from bone marrow cells obtained from 90 rib segments and 30 ;normal' bone marrow aspirates was found to be highly variable. Considerable variation was also noted in the relationship between colony number and the number of cells cultured in both groups. The a...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.27.10.776
更新日期:1974-10-01 00:00:00
abstract::The serotype of 320 strains of Proteus mirabilis from clinical material was determined. Using 20 O antisera and four H antisera 61% of strains could be fully identified and 90% partially identified. A large number of serotypes were recognized but no difference was found between the serotype of organisms infecting the ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.22.3.263
更新日期:1969-05-01 00:00:00
abstract::Of the first 250 heart and 35 heart and lung transplant recipients at Papworth Hospital, Cambridge, who survived for more than one month after transplantation, 217 heart and 33 heart and lung patients were investigated serologically for evidence of Toxoplasma gondii infection. Six patients acquired primary T gondii in...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.42.2.194
更新日期:1989-02-01 00:00:00
abstract:AIMS:To determine whether the recommended methods for the handling of breast excision biopsy specimens from screening patients cause more laboratory work than those used for non-screening patients. METHODS:All breast excision biopsy specimens from 1990 were identified. Ninety one came from patients identified during t...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.45.6.521
更新日期:1992-06-01 00:00:00