2015 Factor XIII (FXIII) is composed of two catalytic A subunits and two carrier B subunits. Following activation by thrombin FXIII becomes plasma transglutaminase, which crosslinks the γ-glutamyl-ɛ-lysine residues of fibrin chains stabilizing fibrin clot. Congenital deficiency of factor XIII results in a severe life-long hemorrhagic disorder, abnormal wound healing in about 30% of patients and...

There is a wide normal range of coagulation factor XIII activity that has never been adequately explained. A polymorphism substituting leucine for valine at position 34 in the activation peptide of the A subunit of factor XIII has recently been discovered in nondeficient individuals, and the present studies indicate that the leucine substitution results in a significant increase in transglutami...

Factor XIII (F XIII) is an essential parameter for final clot stability. The purpose of this study was to determine the impact of the addition of factor (F)XIII on clot stability as assessed by Rotation Thromboelastometry (ROTEM). In 90 intensive care patients ROTEM measurements were performed after in vitro addition of F XIII 0.32 IU, 0.63 IU, 1.25 IU and compared to diluent controls (DC; aqua...

6. Warner D, Mansfield MW, Grant PJ. Coagulation factor XIII and cardiovascular disease in UK Asian patients undergoing coronary angiography. Thromb Haemost 2001; 85: 408-11. 7. Kohler HP, Grant PJ. Clustering of haemostatic risk factors with FXIIIVal34Leu in patients with myocardial infarction. Thromb Haemost 1998; 80: 862. 8. Ariëns RAS, Kohler HP, Mansfield MW, Grant PJ. Subunit antigen and ...

Paraffin embedded sections of human liver, lymph node, and placenta showed that certain connective tissue cells were positive for factor XIII subunit a. These cells were further characterised by double immunofluorescence labelling and by combined immunofluorescence and enzyme cytochemical staining on frozen sections. They were labelled by the monoclonal antibodies RFD7 and anti-Leu M3 (markers ...

Two women, aged 81 and 61, became haemorrhagic after surgery. Their previous surgeries were uneventful with no unexpected bleeding observed. Blood tests prior to the current surgeries indicated normal values including those related to coagulation. There were no problems with the current surgeries prior to leaving the operating room. At 3 hours after the surgery, the 81-year-old patient had an o...

This case report presents a patient with advanced diffuse panbronchiolitis accompanied by chronic respiratory failure, marked cachexia, and refractory spontaneous pneumothorax. Because instillation of a pleurodesis agent and thoracoscopy were considered highly risky and invasive, we instead treated the patient with intravenous administration of a coagulation factor XIII concentrate, and the pne...

A highly sensitive label-free assay for the determination of blood coagulation Factor XIII activity is demonstrated through the controlled assembly of peptide-functionalized gold nanoparticles (AuNPs). Activated Factor XIII catalyzes the formation of covalent crosslinking between peptide chains through ε-(γ-glutamyl)-lysine bonds leading to the aggregation of the AuNPs and consequently a red-sh...

The nucleotide and deduced amino acid sequences of the coding regions of human and rat keratinocyte transglutaminases (protein-glutamine: amine gamma-glutamyltransferase; EC 2.3.2.13) have been determined. These yield proteins of approximately 90 kDa that are 92% identical, indicative of the conservation of important structural features. Alignments of amino acid sequences show substantial simil...

The objective of the present study was to compare the mechanical, kinetic, and biochemical properties of fibrin clots produced using EVICEL Fibrin Sealant (Human) and TISSEEL Fibrin Sealant. The stiffness/elasticity and strength of fibrin clots formed with EVICEL and TISSEEL were assessed using applied mechanical force and thromboelastography (TEG). The factor XIII content of the fibrin clots w...