Abstract:
:The aim of this study was to evaluate the thrombolytic activity of two hybrid plasminogen activators (HPAs) in a rabbit jugular vein thrombosis model. In the two HPAs the kringle-2 domain (K2tu-PA) or the finger and the kringle-2 domains (FK2tu-PA) of tissue-type plasminogen activator (t-PA) are linked to the catalytic protease domain of single chain urokinase type plasminogen activator (scu-PA). The two HPAs were compared with rt-PA and scu-PA on a weight/weight basis. K2tu-PA, FK2tu-PA, rt-PA and scu-PA were infused at doses of 0.4, 0.8 and 1.2 mg/kg over 3 h. Saline served as control. Saline produced 11 +/- 2% thrombolysis. The three doses of K2tu-PA led to 38 +/- 4%, 66 +/- 5% and 89 +/- 7% thrombolysis, respectively; the three doses of FK2tu-PA: 18 +/- 3%, 29 +/- 5% and 33 +/- 6%, respectively; the three doses of rt-PA 32 +/- 2%, 49 +/- 3% and 68 +/- 6%, respectively; the three doses of scu-PA 16 +/- 2%, 24 +/- 3% and 32 +/- 4%, respectively. K2tu-PA and rt-PA showed a statistically significant higher thrombolytic activity than FK2tu-PA and scu-PA at the three tested doses (p less than 0.01). The thrombolytic activity of K2tu-PA was significantly higher than rt-PA at the two higher doses (p less than 0.01). Both K2tu-PA and rt-PA produced a statistically significant reduction of fibrinogen, alpha 2-antiplasmin and plasminogen 3 h after the start of the infusions of the two higher doses.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Thromb Haemostjournal_title
Thrombosis and haemostasisauthors
Agnelli G,Pascucci C,Colucci M,Nenci GG,Mele A,Bürgi R,Heim Jkeywords:
subject
Has Abstractpub_date
1992-09-07 00:00:00pages
331-5issue
3eissn
0340-6245issn
2567-689Xjournal_volume
68pub_type
杂志文章abstract::Management strategies for patients with atrial fibrillation (AF) in association with valvular heart disease (VHD) have been less informed by randomized trials, which have largely focused on ‘non-valvular AF’ patients. Thromboembolic risk also varies according to valve lesion and may also be associated with CHA2DS2-VAS...
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journal_title:Thrombosis and haemostasis
pub_type: 临床试验,杂志文章,随机对照试验
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journal_title:Thrombosis and haemostasis
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journal_title:Thrombosis and haemostasis
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pub_type: 杂志文章,评审
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journal_title:Thrombosis and haemostasis
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journal_title:Thrombosis and haemostasis
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pub_type: 临床试验,杂志文章,多中心研究
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journal_title:Thrombosis and haemostasis
pub_type: 临床试验,杂志文章
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journal_title:Thrombosis and haemostasis
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pub_type: 杂志文章,多中心研究
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
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journal_title:Thrombosis and haemostasis
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journal_title:Thrombosis and haemostasis
pub_type: 临床试验,杂志文章,随机对照试验
doi:
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,评审
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journal_title:Thrombosis and haemostasis
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
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