Comparison of low-molecular-weight heparins prepared from ovine heparins with enoxaparin
Loading...
Authors
Chen, Jianle
Yu, Yanlei
Fareed, Jawed
Hoppensteadt, Debra
Jeske, Walter
Kouta, Ahmed
Jin, Caijuan
Jin, Yongsheng
Yao, Yiming
Xia, Ke
Issue Date
2019-04-12
Type
Article
Language
ENG
Keywords
Biology , Chemistry and chemical biology , Chemical and biological engineering , Biomedical engineering
Alternative Title
Abstract
Heparin and its low-molecular-weight heparin derivatives are widely used clinical anticoagulants. These drugs are critical for the practice of medicine in applications, including kidney dialysis, cardiopulmonary bypass, and in the management of venous thromboembolism. Currently, these drugs are derived from livestock, primarily porcine intestine and less frequently bovine intestine and bovine lung. The worldwide dependence on the pig as a single dominant animal species has made the supply chain for this critical drug quite fragile, leading to the search for other sources of these drugs, including the expanded use of bovine tissues. A number of laboratories are now also examining the similarities between heparin and low-molecular-weight heparins prepared from porcine and ovine tissues. This study was designed to compare low-molecular-weight heparin prepared from ovine heparin through chemical β-elimination, a process currently used to prepare the low-molecular-weight heparin, enoxaparin. Using top-down, bottom-up, and compositional analyses as well as bioassays, low-molecular-weight heparin derived from ovine intestine was shown to closely resemble enoxaparin. Moreover, the compositions of daughter low-molecular-weight heparins prepared from three unfractionated ovine parent heparins were compared. Ovine enoxaparins had similar molecular weight and in vitro anticoagulant activities as Lovenox. Some disaccharide compositional, oligosaccharide composition at the reducing and nonreducing ends and intact chain compositional differences could be observed between porcine enoxaparin and ovine low-molecular-weight heparin. The similarity of these ovine and porcine heparin products suggests that their preclinical evaluation and ultimately clinical assessment is warranted.
Description
Clinical and Applied Thrombosis/Hemostasis, 25, 1-9
Note : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
Note : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
Full Citation
Comparison of low-molecular-weight heparins prepared from ovine heparins with enoxaparin, J. Chen, Y. Yu, J. Fareed, D. Hoppensteadt, W. Jeske, A. Kouta, C. Jin, Y. Jin, Y. Yao, K. Xia, F. Zhang, S. Chen, X. Ye, R. J. Linhardt, Clinical and Applied Thrombosis/Hemostasis, 25, 1-9, 2019.
Publisher
Sage
Terms of Use
Journal
Volume
Issue
PubMed ID
DOI
ISSN
19382723
10760296
10760296