Abstract:
:Carbon monoxide (CO) poisoning is a leading cause of unintentional poisoning deaths in many countries. In ex vivo studies, CO released from carbon monoxide-releasing molecules has been shown to attenuate fibrinolysis via increased alpha-2-antiplasmin activity. Hypofibrinolysis is associated with coronary ischaemia, which is also commonly observed in CO poisoning. We examined fibrin clot properties in acutely poisoned CO patients. Ex vivo plasma fibrin clot permeability, turbidimetry and efficiency of fibrinolysis were investigated in 48 patients and controls matched for age and sex. CO-poisoned patients had 11.6% longer clot lysis time than the controls (p < 0.0001). No intergroup differences in clot permeability or turbidimetric variables were observed. Plasma tissue-type plasminogen antigen (tPA), plasminogen activator inhibitor-1 (PAI-1) antigen and activity and F1.2 prothrombin fragments were higher in the patients than in the controls (all p < 0.0001). Plasma tPA activity was lower in the CO-poisoned group. Multiple linear regression showed that a thrombin generation marker, F1.2, is the strongest predictor of clot lysis time, followed by PAI-1 activity and carboxyhaemoglobin levels. In conclusion, this report is the first to demonstrate that acute CO poisoning in human beings is linked to increased thrombin generation and impaired fibrinolysis, which might contribute to ischaemic complications.
journal_name
Basic Clin Pharmacol Toxicoljournal_title
Basic & clinical pharmacology & toxicologyauthors
Gawlikowski T,Gomolka E,Piekoszewski W,Jawień W,Undas Adoi
10.1111/bcpt.12042subject
Has Abstractpub_date
2013-05-01 00:00:00pages
352-6issue
5eissn
1742-7835issn
1742-7843journal_volume
112pub_type
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