Heparinized Organ Flush
Heparinized Organ Flush - Related Videos
07:08
Assessing and Flushing a Peripheral Intravenous Line
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2023
Source: Madeline Lassche, MSNEd, RN and Katie Baraki, MSN, RN, College of Nursing, University of Utah, UT After peripheral intravenous (IV) access is initiated, it is important to assess and maintain the IV catheter according to institutional policies and nursing standards of practice. The regular assessment of the insertion site and the surrounding areas for signs of complications is necessary to prevent IV catheter complications, including infiltration, phlebitis, infection, extravasation, or...
02:21
Purification of Viral Integrase Using Heparin Affinity Chromatography
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2026
Source: Lopez Jr., M. et al. Detection and Removal of Nuclease Contamination During Purification of Recombinant Prototype Foamy Virus Integrase. J. Vis. Exp. (2017)This video demonstrates the procedure for purifying viral integrase from bacterial nuclease contamination using heparin Sepharose column chromatography followed by SDS-PAGE analysis to confirm protein purity.
10:41
Using a GFP-tagged TMEM184A Construct for Confirmation of Heparin Receptor Identity
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Cited by 2 •
2017
A construct encoding TMEM184A with a GFP tag at the carboxy-terminus designed for eukaryotic expression, was employed in assays designed to confirm the identification of TMEM184A as a heparin receptor in vascular cells.
12:27
Polyelectrolyte Complex for Heparin Binding Domain Osteogenic Growth Factor Delivery
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Cited by 2 •
2016
Self-assembled polyelectrolyte complexes (PEC) fabricated from heparin and protamine were deposited on alginate beads to entrap and regulate the release of osteogenic growth factors. This delivery strategy enables a 20-fold reduction of BMP-2 dose in spinal fusion applications. This article illustrates the benefits and fabrication of PECs.
01:30
Anticoagulant Drugs: Low-Molecular-Weight Heparins
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2024
Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
FAQs
Heparin is important because it enhances antithrombin activity, which limits thrombin-mediated fibrin formation. This reduces the accumulation of clots inside the organ’s vessels while the tissue is being handled or preserved. Maintaining a less obstructed vascular pathway supports subsequent access by preservation or processing solutions and helps establish more consistent conditions for bioengineering studies.
Perfusion and anticoagulation address different parts of the preparation. The flowing flush helps remove residual blood from the isolated organ, whereas heparin reduces clot formation by strengthening antithrombin activity. Together, these effects help maintain vascular patency rather than relying on rinsing alone. That distinction matters when later solutions must reach vascular spaces throughout the tissue.
Effective performance depends on achieving two related outcomes: removing residual blood and preserving open vascular pathways. If blood or clots remain, access by later preservation or processing solutions may be less consistent. For bioengineering workflows, this makes the quality of the initial flush relevant to tissue handling, vascular assessment, and the reproducibility of downstream processing.
The workflow begins with an isolated organ and a solution containing heparin. Researchers perfuse the solution through the organ to rinse out residual blood and reduce clot accumulation, then use the prepared tissue for handling or preservation. The same preparation can precede vascular assessment, decellularization, recellularization, or graft-development studies.
Clearing blood and limiting clot accumulation can improve access of later processing solutions to the tissue. That advantage is especially relevant when bioengineers prepare organs for decellularization, then for recellularization or graft development. The flush does not perform those later steps; it helps provide a more accessible and consistent starting condition for them.
Researchers may use this preparation when an isolated organ must be handled or preserved, when its vasculature needs assessment, or when it will enter an engineered-organ workflow. Its value is preparative: reducing blood and clot obstruction can make vascular spaces more accessible and support structural integrity before downstream preservation, processing, recellularization, or graft-development work.