Abstract:
AIMS:Clot waveform analysis (CWA) has been reported to extend the interpretation of clotting time measurement. The parameters obtained from successive derivatives of the clotting reaction curves reflect the rates of activation of individual coagulation factors, theoretically dissecting the cascade pathway. This study aims to assess the in vitro effects of direct thrombin inhibitors (DTIs) and activated factor X (FXa) inhibitors. METHODS:CWA was applied to the activated partial thromboplastin time (APTT) assay of plasma samples spiked with each drug. For CWA of APTT measurement curves (APTT-CWA), the positive mode of clotting reaction curves was defined as the direction towards fibrin generation. RESULTS:All the maximum positive values in the successive derivatives were decreased dependently on the concentrations of each drug. Moreover, the negative values in the second and third derivatives appeared putatively due to consumption of thrombin and factor FXa, respectively, to form complexes with plasma serine protease inhibitors. The decrease of the maximum negative values observed dependently on the concentrations of each drug appeared to be consistent with the decreased generation of thrombin and factor FXa. The analysis of Hill coefficients of each drug in the dose-response of changes in the APTT-CWA parameters revealed a difference in anticoagulant cooperativity between DTIs versus FXa inhibitors. CONCLUSIONS:The APTT-CWA demonstrated evidence for the blockade of thrombin-positive feedback by DTIs and FXa inhibitors and that for the differences in anticoagulant cooperativity between them. The results demonstrate the usability of CWA for assessment of anticoagulation and provide insights into direct anticoagulants.
journal_name
J Clin Patholjournal_title
Journal of clinical pathologyauthors
Wakui M,Fujimori Y,Katagiri H,Nakamura S,Kondo Y,Kuroda Y,Nakagawa T,Shimizu N,Murata Mdoi
10.1136/jclinpath-2018-205517subject
Has Abstractpub_date
2019-03-01 00:00:00pages
244-250issue
3eissn
0021-9746issn
1472-4146pii
jclinpath-2018-205517journal_volume
72pub_type
杂志文章abstract::Recent evidence shows that chronic liver disease induced by hepatitis delta virus is closely associated with production of autoantibodies. To verify this sera from patients with hepatitis delta virus and from those with hepatitis B virus mediated chronic liver disease were tested for a panel of autoantibodies. Althoug...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.39.8.897
更新日期:1986-08-01 00:00:00
abstract::An ultrastructural cytochemical study of lysosomal acid phosphatase was performed on leukemic cells in a case of chronic lymphocytic leukaemia of T cell origin (T-CLL). The cells showed inclusion bodies known as parallel tubular arrays, which often lay within acid phosphatase-positive, membrane-bound spaces. This sugg...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.35.2.167
更新日期:1982-02-01 00:00:00
abstract::During an outbreak of gastroenteritis in a paediatric ward astroviruses were found in faeces from 17 to 27 symptomatic children and from four of 14 members of the staff with diarrhoea. No viruses were found in 10 asymptomatic children. Fourteen of the 21 astrovirus excretors were free of any recognised pathogens, but ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.30.10.948
更新日期:1977-10-01 00:00:00
abstract:PURPOSE:To investigate p53 and hepatoma-derived growth factor (HDGF) expression and their association with clinicopathological features of Ewing family tumour (EFT). EXPERIMENTAL DESIGN:A total of 108 cases of EFT were retrospectively analysed. p53 and HDGF expression were detected using immunohistochemistry, and the ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2013-201705
更新日期:2014-03-01 00:00:00
abstract::Hepatitis C virus (HCV) replication is reported in both tumour and non-tumour tissue in a case of hepatocellular carcinoma. Viral replication was established by showing the presence of minus strand HCV RNA by PCR amplification, after excluding residual reverse transcriptase activity of Taq polymerase. No minus strand ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.48.9.880
更新日期:1995-09-01 00:00:00
abstract:BACKGROUND:Fibrinogen plays a crucial role in the pathophysiology of tumour cell growth, invasion and metastasis. The aim of this study was to evaluate the prognostic significance of pretreatment plasma fibrinogen levels in patients with diffuse large B cell lymphoma (DLBCL) METHODS: Data from 372 patients with DLBCL, ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章,多中心研究
doi:10.1136/jclinpath-2015-203356
更新日期:2016-04-01 00:00:00
abstract::A prospective, randomized trial is described in which the usefulness of two tests in the control of anticoagulant therapy is compared. Fifty-two patients were controlled by the one-stage prothrombin time and 55 by the activated partial thromboplastin time. There was no significant difference in the incidence of bleedi...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.26.1.73
更新日期:1973-01-01 00:00:00
abstract::A rapid technique using a non-radioactive receptor molecule (digoxigenin) for intrahepatic hepatitis B virus (HBV) DNA detection using in situ hybridisation was developed. It can be adapted for use in combination with standard immunohistochemistry for simultaneous detection of both HBV DNA and HBV antigens. The total ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.44.11.905
更新日期:1991-11-01 00:00:00
abstract:AIM:To better understand the spectrum of primary lymphomas in the upper aerodigestive tract, a common site of extranodal lymphoma. MATERIALS AND METHODS:Lymphoma cases diagnosed at an institution in southern Taiwan from 1992 to 2007 were retrospectively studied with pathology and history review, immunohistochemistry, ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2010.081927
更新日期:2010-10-01 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:AIMS:The Royal College of Pathologists recommend that a median of at least 12 lymph nodes should be harvested during pathological staging of colorectal cancer. It is not always easy to harvest the required number, especially in patients with rectal cancer receiving neoadjuvant therapy. Lymph node revealing solutions, f...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2015-203281
更新日期:2016-06-01 00:00:00
abstract:AIMS:To determine the sensitivity and specificity of a multiplex PCR assay for the contemporary identification of major species involved in oral candidiasis, without extraction and purification of DNA from the samples under investigation; and evaluation of this method in comparison with routine phenotypic culture ident...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2006.040782
更新日期:2007-09-01 00:00:00
abstract::In two out of three cases of idiopathic fibrosis of the mediastinum there was also retroperitoneal fibrosis, and in one of them extensive fibrosis of the lungs. One of these, a fit middle-aged man, died suddenly with severe coronary artery stenosis due to fibrosis. The third case was that of a young man with a solitar...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.31.1.78
更新日期:1978-01-01 00:00:00
abstract::Statistical tables including 50 and 95 percentile ranges are presented of the combined kidney weights compared with body weight, crown-rump length, and gestation age of foetuses and newborn children, and also a table of kidney weights related to post-natal age. The importance of relating kidney weight to more than one...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.13.6.490
更新日期:1960-11-01 00:00:00
abstract::This article reviews recent information concerning the origin of osteoclasts and the local and systemic regulation of their activity. It appears that much of the environmental responsiveness of osteoclasts is mediated by cells of the osteoblastic lineage, which exert a major influence on the localisation, induction, s...
journal_title:Journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1136/jcp.38.3.241
更新日期:1985-03-01 00:00:00
abstract:AIMS:To identify the number and geographical distribution of post mortem examinations performed on HIV infected cadavers; to identify the areas that perform post mortem examinations so that, by invitation and discussion, a national post mortem network could be initiated. METHODS:A nationwide survey of Royal College of...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.46.12.1076
更新日期:1993-12-01 00:00:00
abstract:AIMS:Multiple myeloma (MM) is a heterogeneous disease characterised by genetically complex abnormalities. The classical mutational spectrum includes recurrent chromosomal aberrations and gene-level mutations. Recurrent translocations involving the IGH gene such as t(11;14), t(4;14) and t(14;16) are well known. However,...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2017-204961
更新日期:2018-08-01 00:00:00
abstract:BACKGROUND:Helicobacter pylori associated gastric cancer arises via a multistage process, with atrophic gastritis being the precursor lesion. Helicobacter pylori is typically acquired in childhood, yet little is known of the prevalence of atrophic gastritis in childhood. AIM:To study atrophic gastritis among children ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章,多中心研究
doi:10.1136/jcp.2005.026310
更新日期:2005-11-01 00:00:00
abstract:BACKGROUND:Breast cancer is increasing in Indonesia and other developing countries. Germline mutations in the BRCA1/2 genes are most strongly associated with a high risk for breast cancer development. There have been no reports on BRCA1/2 gene mutations in the Indonesian population. Genetic research yielding insight in...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2004.020388
更新日期:2005-05-01 00:00:00
abstract::Synovial sarcoma is a distinctive soft tissue neoplasm with monophasic and biphasic forms. It is typically a deep-seated soft tissue tumour of the extremities of young adults and occasional cases have been described in large peripheral nerves. A rare example has a predominance of the glandular component and may mimic ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2007.053124
更新日期:2008-05-01 00:00:00
abstract::The activities of three commercial products of papain were compared as supplied and after activation, and when used in the enzyme-serum method for rhesus (D) grouping. Certain dangers in activation became apparent, and accurate determination of the proportions of papain to anti-D appeared more important than indiscrim...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.15.6.503
更新日期:1962-11-01 00:00:00
abstract::Xanthine oxidase (XO) activity was found to be negligible in sterile human urines (less than 480 units, as presently defined, per litre). Significant XO activity was found in all urines containing more than 10(5) bacteria/ml, except for urines infected with Staphylococcus aureus, in which XO activity ranged from 347 t...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.31.5.444
更新日期:1978-05-01 00:00:00
abstract:AIMS:To analyse the entity specific incidence and disease specific survival (DSS) of non-Hodgkin lymphomas (NHLs) in Tyrol/Austria, 1991-2000. METHODS:Data from 1307 NHLs (excluding primary cutaneous lymphomas and monoclonal gammopathies of undetermined significance) were obtained. Current status was available for all...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2005.026815
更新日期:2006-01-01 00:00:00
abstract::Large cell neuroendocrine carcinoma (LCNEC) is a high grade type of neuroendocrine tumour with an aggressive clinical course. This report describes the first case of LCNEC combined with an adenocarcinoma component in the common bile duct. A 68 year old man presented with jaundice. Severe stenosis of the bile duct was ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2005.028019
更新日期:2006-01-01 00:00:00
abstract::Twenty five specimens of branchial cyst from the same number of patients have been examined. On staining with haematoxylin and eosin a consistent finding was that the mural lymphoid follicles were always aligned with their mantle zones towards the luminal epithelium. With conventional staining lymphatic sinuses were n...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.38.7.784
更新日期:1985-07-01 00:00:00
abstract:AIMS:To describe and evaluate two apparently unique cases of inverted hyperplastic (metaplastic) polyposis of the colon. METHODS:The cases were analysed by standard histopathological, histochemical, and immunohistochemical techniques and the findings compared with those of regular hyperplastic polyps of the colorectum...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.46.1.56
更新日期:1993-01-01 00:00:00
abstract::This report describes a case of aleukaemic myeloid sarcoma of the small intestine in a 50-year-old woman presenting with small bowel obstruction. Fluorescence in situ hybridisation analysis of interphase nuclei revealed a split CBFbeta signal, consistent with an underlying inversion of chromosome 16, inv(16)(p13q22). ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2008.063669
更新日期:2009-08-01 00:00:00
abstract::Activation of the complement system, the main humoral mediator of inflammation, is restrained by the action of enzyme inhibitors including alpha 1-antitrypsin. Deficiency leads to chronic liver disease in about one in five children with this genetic defect. Complement activation was investigated in 34 children with al...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.44.10.855
更新日期:1991-10-01 00:00:00
abstract::Cytomegalovirus (CMV) is a recognised cause of morbidity and mortality in immunocompromised individuals. This review will concentrate on recent advances in the understanding of the complex interplay between the host and parasite and the pathological consequences of perturbation of the host immune system. The classic v...
journal_title:Journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1136/jcp.54.2.84
更新日期:2001-02-01 00:00:00
abstract::Two cases of anticonvulsant megaloblastic anaemia are described, showing features of unusual interest. Though both cases were apparently deficient in folic acid, the Figlu tests were negative. One patient had an extremely low serum B(12) concentration apparently associated with defective B(12) absorption due to defici...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.18.5.593
更新日期:1965-09-01 00:00:00