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Updated: Aug 10, 2026

Analysis of β-Amyloid-induced Abnormalities on Fibrin Clot Structure by Spectroscopy and Scanning Electron Microscopy
Published on: November 30, 2018
An abnormal fibrinogen with delayed fibrinopeptide A release
Investigation of the family of a patient presenting with haematuria revealed seven cases in three generations showing a prolonged thrombin clotting time. A dysfibrinogenaemia was confirmed when purified fibrinogen from an affected member of the family was shown to also exhibit a prolonged thrombin clotting time. No molecular abnormality could be demonstrated using electrophoretic and immunological techniques. However, using a specific radioimmunoassay to fibrinopeptide A a major defect has been localized to a delay in the rate of release of this peptide by thrombin when the abnormal fibrinogen is converted to fibrin. This case of dysfibrinogenaemia has been tentatively designated fibrinogen Manchester.
Investigation of the family of a patient presenting with haematuria revealed seven cases in three generations showing a prolonged thrombin clotting time. A dysfibrinogenaemia was confirmed when purified fibrinogen from an affected member of the family was shown to also exhibit a prolonged thrombin clotting time. No molecular abnormality could be demonstrated using electrophoretic and immunological techniques. However, using a specific radioimmunoassay to fibrinopeptide A a major defect has been localized to a delay in the rate of release of this peptide by thrombin when the abnormal fibrinogen is converted to fibrin. This case of dysfibrinogenaemia has been tentatively designated fibrinogen Manchester.
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