{"title":"Proceedings: The histochemical assay of plasminogen activator in the venous wall--an inter-ethnic study.","authors":"R C Franz, N Hugo, C R Jansen","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":23068,"journal":{"name":"Thrombosis et diathesis haemorrhagica","volume":"34 2","pages":"608-9"},"PeriodicalIF":0.0,"publicationDate":"1975-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12376289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Proceedings: Purification of tissue activator using affinity adsorption on fibrin and hydrophobic interaction chromatography. Effect of fibrin on the enzymatic properties of the activator.","authors":"P Wallén, B Wiman","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":23068,"journal":{"name":"Thrombosis et diathesis haemorrhagica","volume":"34 2","pages":"609"},"PeriodicalIF":0.0,"publicationDate":"1975-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12376291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Proceedings: Factor VIII, small active factor VIII fragments, and von Willebrand factor.","authors":"R H Wagner","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":23068,"journal":{"name":"Thrombosis et diathesis haemorrhagica","volume":"34 2","pages":"605"},"PeriodicalIF":0.0,"publicationDate":"1975-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12262106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B N Bouma, J M Hordijk-Hos, S de Graaf, J A van Mourik, J J Sixma
{"title":"Proceedings: Factor VIII related antigen in normal blood platelets and in platelets of patients with von Willebrand's disease.","authors":"B N Bouma, J M Hordijk-Hos, S de Graaf, J A van Mourik, J J Sixma","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":23068,"journal":{"name":"Thrombosis et diathesis haemorrhagica","volume":"34 2","pages":"606-7"},"PeriodicalIF":0.0,"publicationDate":"1975-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12262108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P M Mannucci, L Holmberg, Z M Ruggeri, I M Nilsson
{"title":"Proceedings: Mechanisms of the prolonged bleeding time in von Willebrand's disease (vWd).","authors":"P M Mannucci, L Holmberg, Z M Ruggeri, I M Nilsson","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":23068,"journal":{"name":"Thrombosis et diathesis haemorrhagica","volume":"34 2","pages":"607"},"PeriodicalIF":0.0,"publicationDate":"1975-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12262109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Proceedings: Receptors for 5-hydroxytryptamine on rat blood platelets.","authors":"A H Drummond, J L Gordon","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":23068,"journal":{"name":"Thrombosis et diathesis haemorrhagica","volume":"34 2","pages":"594"},"PeriodicalIF":0.0,"publicationDate":"1975-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12376262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Proceedings: Activation of dicoumarol-induced atypical prothrombin.","authors":"O P Malhotra","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":23068,"journal":{"name":"Thrombosis et diathesis haemorrhagica","volume":"34 2","pages":"592"},"PeriodicalIF":0.0,"publicationDate":"1975-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11276547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
An evaluation of changes in the plasma chromatographic pattern was carried out in dogs with experimental coronary thrombosis. Sequential samples were taken simultaneously from the aorta and coronary sinus over a two, four and twenty-four hour period. In addition to gel-chromatography, immunodiffusion and electrophoresis were also employed to identify the protein components of the elution fractions. The results showed that there was a shift of the normal chromatographic pattern to the left from the control within two hours following thrombotic occlusion of the coronary artery and it was maintained over a twenty-four hour period. The shift to the left was presumably due to the earlier elution of the heavy molecular weight components forming as a result of the thrombotic process. The early appearance of the altered chromatographic pattern constitutes an important advantage worthy of further exploration for possible diagnostic application in the human subject.
{"title":"Effects of experimental coronary thrombosis upon regional and systemic plasma chromatographic patterns.","authors":"P Chowdhury, C B Moschos","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>An evaluation of changes in the plasma chromatographic pattern was carried out in dogs with experimental coronary thrombosis. Sequential samples were taken simultaneously from the aorta and coronary sinus over a two, four and twenty-four hour period. In addition to gel-chromatography, immunodiffusion and electrophoresis were also employed to identify the protein components of the elution fractions. The results showed that there was a shift of the normal chromatographic pattern to the left from the control within two hours following thrombotic occlusion of the coronary artery and it was maintained over a twenty-four hour period. The shift to the left was presumably due to the earlier elution of the heavy molecular weight components forming as a result of the thrombotic process. The early appearance of the altered chromatographic pattern constitutes an important advantage worthy of further exploration for possible diagnostic application in the human subject.</p>","PeriodicalId":23068,"journal":{"name":"Thrombosis et diathesis haemorrhagica","volume":"34 2","pages":"504-12"},"PeriodicalIF":0.0,"publicationDate":"1975-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11999837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Proceedings: Immunohistological studies of coagulation factors in normal blood vessels and platelets.","authors":"A L Bloom, J C Giddings, S A Shearn","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":23068,"journal":{"name":"Thrombosis et diathesis haemorrhagica","volume":"34 2","pages":"599"},"PeriodicalIF":0.0,"publicationDate":"1975-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12285384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Coagulation activity, expressed as percentage of normal and as clotting time ratio, was estimated in 220 specimens from patients on long-term anticoagulant treatment by 3 different coagulation test procedures, i.e. Thrombotest, Simplastin-A and Normotest. The estimates were calculated from the same determinations. The distribution of percentage values showed a fairly pronounced deviation from normality. After logarithmic transformation, the distribution was normalized, the regression lines between Thrombotest and other tests became parallel, and that between PIVKA-insensitive systems was shifted to a 45 degree line. Logarithmic transformation also stabilized the residual variance. These features make percentage values accessible for treatment according to the standard methods of bioassay statistics. Attempts to normalize the distribution of ratio values by various transformations were unsuccessful. Formal analysis of data revealed a variation in the proportionality of ratio values with the level of estimated coagulation defect. This may restrict the usefulness of the ratio approach. Logarithmic transformation partly reduced the discrepancy.
{"title":"Assessment of different mathematical models for calculating and expressing the results of coagulation test procedures.","authors":"J Kahan, I Norén","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Coagulation activity, expressed as percentage of normal and as clotting time ratio, was estimated in 220 specimens from patients on long-term anticoagulant treatment by 3 different coagulation test procedures, i.e. Thrombotest, Simplastin-A and Normotest. The estimates were calculated from the same determinations. The distribution of percentage values showed a fairly pronounced deviation from normality. After logarithmic transformation, the distribution was normalized, the regression lines between Thrombotest and other tests became parallel, and that between PIVKA-insensitive systems was shifted to a 45 degree line. Logarithmic transformation also stabilized the residual variance. These features make percentage values accessible for treatment according to the standard methods of bioassay statistics. Attempts to normalize the distribution of ratio values by various transformations were unsuccessful. Formal analysis of data revealed a variation in the proportionality of ratio values with the level of estimated coagulation defect. This may restrict the usefulness of the ratio approach. Logarithmic transformation partly reduced the discrepancy.</p>","PeriodicalId":23068,"journal":{"name":"Thrombosis et diathesis haemorrhagica","volume":"34 2","pages":"522-30"},"PeriodicalIF":0.0,"publicationDate":"1975-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12373885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}