Biomaterial Database

The influence of low molecular weight heparin in combination with dihydroergotamine on experimental thrombosis and haemostasis. 1987

D Bergqvist, and B Nilsson

Department of Surgery, University of Lund, General Hospital, Malmö, Sweden.

The influence of low molecular weight heparin in combination with dihydroergotamine (DHE) on thrombus formation and primary haemostasis was investigated in rabbit models. Conventional heparin in the dose of 60 units anti Xa activity/kg b. w. effectively prevented thrombus formation but the same dose of a low molecular weight fragment only gave a marginal decrease of the frequency of thrombosis. The thrombus weight was, however, significantly reduced. Doubling the dose of the heparin fragment totally abolished thrombus formation as did the combination of 60 units with DHE. With DHE it was also possible to diminish the low molecular weight heparin dose to 30 units with a good prophylactic effect. There was a small but significant increase of haemostatic plug formation time in all treatment groups except the one with low molecular weight heparin fragment 30 units anti Xa activity combined with DHE. Thus, by combining low molecular weight heparin in a low dose with DHE it is possible to prevent thrombus formation without influencing primary haemostasis in rabbits.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D011817	Rabbits	A burrowing plant-eating mammal with hind limbs that are longer than its fore limbs. It belongs to the family Leporidae of the order Lagomorpha, and in contrast to hares, possesses 22 instead of 24 pairs of chromosomes.	Belgian Hare,New Zealand Rabbit,New Zealand Rabbits,New Zealand White Rabbit,Rabbit,Rabbit, Domestic,Chinchilla Rabbits,NZW Rabbits,New Zealand White Rabbits,Oryctolagus cuniculus,Chinchilla Rabbit,Domestic Rabbit,Domestic Rabbits,Hare, Belgian,NZW Rabbit,Rabbit, Chinchilla,Rabbit, NZW,Rabbit, New Zealand,Rabbits, Chinchilla,Rabbits, Domestic,Rabbits, NZW,Rabbits, New Zealand,Zealand Rabbit, New,Zealand Rabbits, New,cuniculus, Oryctolagus
D004087	Dihydroergotamine	A 9,10alpha-dihydro derivative of ERGOTAMINE. It is used as a vasoconstrictor, specifically for the therapy of MIGRAINE DISORDERS.	Agit,Angionorm,Clavigrenin,D-Tamin Retard L.U.T.,D.H.E. 45,DET MS,DHE-45,DHE-Puren,DHE-Ratiopharm,Dihydergot,Dihydroergotamin AL,Dihydroergotamine Mesylate,Dihydroergotamine Methanesulfonate,Dihydroergotamine-Sandoz,Dihytamin,Erganton,Ergomimet,Ergont,Ergotam Von Ct,Ikaran,Migranal,Orstanorm,Seglor,Tamik,Verladyn,D Tamin Retard L.U.T.,DHE 45,DHE Puren,DHE Ratiopharm,DHE45,Dihydroergotamine Sandoz,Mesylate, Dihydroergotamine,Methanesulfonate, Dihydroergotamine,Von Ct, Ergotam
D004195	Disease Models, Animal	Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases.	Animal Disease Model,Animal Disease Models,Disease Model, Animal
D004353	Drug Evaluation, Preclinical	Preclinical testing of drugs in experimental animals or in vitro for their biological and toxic effects and potential clinical applications.	Drug Screening,Evaluation Studies, Drug, Pre-Clinical,Drug Evaluation Studies, Preclinical,Drug Evaluations, Preclinical,Evaluation Studies, Drug, Preclinical,Evaluation, Preclinical Drug,Evaluations, Preclinical Drug,Medicinal Plants Testing, Preclinical,Preclinical Drug Evaluation,Preclinical Drug Evaluations,Drug Screenings,Screening, Drug,Screenings, Drug
D005260	Female		Females
D006487	Hemostasis	The process which spontaneously arrests the flow of BLOOD from vessels carrying blood under pressure. It is accomplished by contraction of the vessels, adhesion and aggregation of formed blood elements (eg. ERYTHROCYTE AGGREGATION), and the process of BLOOD COAGULATION.	Hemostases
D006495	Heparin, Low-Molecular-Weight	Heparin fractions with a molecular weight usually between 4000 and 6000 kD. These low-molecular-weight fractions are effective antithrombotic agents. Their administration reduces the risk of hemorrhage, they have a longer half-life, and their platelet interactions are reduced in comparison to unfractionated heparin. They also provide an effective prophylaxis against postoperative major pulmonary embolism.	LMWH,Low-Molecular-Weight Heparin,Low Molecular Weight Heparin,Heparin, Low Molecular Weight
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D013927	Thrombosis	Formation and development of a thrombus or blood clot in BLOOD VESSELS.	Atherothrombosis,Thrombus,Blood Clot,Blood Clots,Thromboses