Results 201 to 210 of about 54,262 (254)

Plasminogen Activator and Plasminogen Activator Inhibitor Activities in a Reference Population

American Journal of Clinical Pathology, 1988
The influence of age, gender, and aspirin ingestion on plasma levels of tissue plasminogen activator (t-PA) and plasminogen activator inhibitor-1 (PAI-1) activities was studied in a reference population of 35 men and 35 women between the ages of 20 and 65 years.
C, Krishnamurti, D B, Tang, C F, Barr, B M, Alving   +3 more
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Plasminogen activator / plasminogen activator inhibitors in ovarian physiology

Frontiers in Bioscience, 2004
The target extracellular matrix (ECM) degradation generated by plasminogen activator (PA) and regulated by plasminogen activator inhibitor (PAI) is an event that affects a wide variety of physiological and pathological processes in the ovary. Studies carried out over the past 25 years in a number of laboratories have elucidated some of the biochemical ...
openaire   +2 more sources

Activation of Val442-plasminogen (mini-plasminogen) by urokinase, streptokinase and tissue plasminogen activator

Thrombosis Research, 1988
Glu-plasminogen (Glu-plg), Lys-plg and Val442-plg (mini-plg) were activated by urokinase (UK), streptokinase (SK) or tissue plasminogen activator (t-PA). Their activation rates were kinetically analyzed. UK activated Lys-plg with smaller Km and nearly identical Vmax as Glu-plg.
A, Takada, Y, Takada, Y, Sugawara
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Tissue Activator of Plasminogen

Nature, 1964
SINCE Astrup and Permin1 reported that animal tissue cells contain an activator of plasminogen, various authors have confirmed their results, and comparisons of the activator content of different human2 and animal tissues3,4 have been published. Most authors have used whole tissue or aqueous tissue extracts and have estimated activity by the fibrin ...
C H, LACK, S Y, ALI
openaire   +2 more sources

Platelets and Plasminogen Activation

Thrombosis and Haemostasis, 1995
Platelets serve as a site for assembly of the proteins of the plasminogen activator system. Once bound to the platelet surface, tissue-type plasminogen activator manifests enhanced catalytic activity. Plasmin, once formed, also binds to the platelets surface and, at low concentrations, renders the platelet dysfunctional by cleaving glycoprotein IIIa ...
J, Loscalzo, B, Pasche, H, Ouimet, J E, Freedman   +3 more
openaire   +2 more sources

Plasminogen Activator Inhibitor-1

Current Medicinal Chemistry, 2004
Plasminogen activator inhibitor-1 (PAI-1) is an important component of the plasminogen/plasmin system as it is the main inhibitor of tissue-type and urokinase-type plasminogen activator. Consequently, PAI-1 plays an important role in cardiovascular diseases (mainly through inhibition of t-PA) and in cell migration and tumor development (mainly through ...
Ann, Gils, Paul J, Declerck
openaire   +2 more sources

Plasminogen/plasminogen activator and growth factor activation.

Ciba Foundation symposium, 1998
The plasminogen/plasminogen activator system is widely used in extracellular proteolysis. In this review the involvement of this system in tumour invasion, cell migration, growth factor presentation and inhibition of angiogenesis are discussed.
Rifkin, DB, Gleizes, PE, Harpel, J, Nunes, I, Munger, J, Mazzieri, R, Noguera, I   +6 more
openaire   +1 more source

Mechanisms of plasminogen activation

Journal of Internal Medicine, 1994
The fibrinolytic system consists of an inactive proenzyme, plasminogen, that is converted by plasminogen activators to the active enzyme, plasmin, that degrades fibrin. Two immunologically distinct plasminogen activators have been identified: tissue-type plasminogen activator (t-PA) and urokinase-type plasminogen activator (u-PA).
H R, Lijnen, F, Bachmann, D, Collen, V, Ellis, H, Pannekoek, D C, Rijken, S, Thorsen   +6 more
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Zymographic Evaluation of Plasminogen Activators and Plasminogen Activator Inhibitors

2004
Publisher Summary The plasminogen activator/plasminogen activator inhibitor (PA/PAI) system is of considerable fundamental importance in elucidating the biochemical mechanisms of many physiological and patho-physiological processes. Although many techniques are available to assess the PA/PAI system, including ELISA and molecular assays, fibrin ...
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Plasminogen Activators and Angiogenesis

1996
The formation of capillaries from preexisting blood vessels (angiogenesis) occurs in a variety of normal and pathological conditions, including organ development, would healing and tumor growth. Angiogenesis requires a strict temporal modulation of opposing cell functions: cell proliferation and migration, and extracellular matrix (ECM) degradation in ...
P, Mignatti, D B, Rifkin
openaire   +2 more sources