DHG, a new depolymerized holothurian glycosaminoglycan, exerts an antithrombotic effect with less bleeding than unfractionated or low molecular weight heparin, in rats.

Abstract:

:We characterized the antithrombotic, haemorrhagic, and ex vivo anticoagulant effects of a recently identified depolymerized holothurian glycosaminoglycan (DHG), and compared these effects with those of unfractionated heparin (UFH), low molecular weight heparin (LMWH), and dermatan sulfate (DS). In thrombin-induced venous thrombus formation in rats, DHG had a significant preventive effect at 0.3 mg/kg or more at 5 min after i.v., administration. UFH, LMWH, and DS also showed a significant antithrombotic effect at 0.3, 0.3, and 1 mg/kg, respectively, under the same experimental conditions. After rat tail transection, DHG, UFH, LMWH, and DS prolonged the bleeding time significantly at 10, 1, 1, and 10 mg/kg, respectively, at 5 min after i.v., injection. Therefore, DHG exerts its antithrombotic effect with less bleeding than UFH and LMWH in experimental animals. DHG prolonged the activated partial thromboplastin time in a dose-dependent manner at 0.3-3 mg/kg, at which dose an antithrombotic effect was exhibited without any significant haemorrhagic effect. All of these glycosaminoglycans prolonged thrombin clotting time markedly at their haemorrhagic doses.

journal_name

Thromb Res

journal_title

Thrombosis research

authors

Kitazato K,Kitazato KT,Nagase H,Minamiguchi K

doi

10.1016/0049-3848(96)00166-1

subject

Has Abstract

pub_date

1996-10-15 00:00:00

pages

111-20

issue

2

eissn

0049-3848

issn

1879-2472

pii

0049-3848(96)00166-1

journal_volume

84

pub_type

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