Radio-labeled Heparin
Radio-labeled Heparin - Related Videos
10:13
Measuring G-protein-coupled Receptor Signaling via Radio-labeled GTP Binding
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Cited by 11 •
2017
Guanosine triphosphate (GTP) binding is one of the earliest events in G-Protein-Coupled Receptor (GPCR) activation. This protocol describes how to pharmacologically characterize specific GPCR-ligand interactions by monitoring the binding of the radio-labeled GTP analog, [35S]guanosine-5'-O-(3-thio)triphosphate ([35S]GTPγS), in response to a ligand of interest.
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
The isotope emits detectable radiation that marks the heparin during biological studies, while the heparin retains interactions with coagulation proteins such as antithrombin. This combination lets researchers track the anticoagulant and interpret where it travels, how it distributes, and whether its protein interactions remain relevant to biological activity.
Antithrombin binding connects the tracer signal to a central anticoagulant interaction. Because radio-labeled heparin retains this interaction, researchers can examine heparin behavior in relation to coagulation mechanisms rather than tracking an unrelated molecule. Measurements involving binding therefore help clarify how heparin participates in anticoagulant activity within biological systems.
Measurements can address several distinct properties: binding to coagulation proteins, distribution through biological systems, tissue uptake, clearance, and persistence over time. Examining these properties separately helps distinguish where heparin is found from how long it remains present and how its movement relates to biological activity.
Radio-labeled heparin supports investigations of blood coagulation and heparin-protein interactions by making the anticoagulant traceable in biological systems. Researchers can connect detected distribution or tissue uptake with interactions involving coagulation proteins, including antithrombin. This provides a way to study anticoagulant mechanisms alongside the movement and persistence of heparin.
Researchers monitor where the tracer appears in tissues and how its presence changes as the biological system processes heparin. These observations provide information about tissue uptake, distribution, clearance, and persistence. Together, the measurements describe pharmacokinetic behavior, showing how heparin travels through a system and how long it remains detectable.
The approach links therapeutic evaluation to measurable biological behavior. By revealing heparin distribution, tissue uptake, clearance, persistence, and interactions with coagulation proteins, it helps researchers assess how an anticoagulant behaves in biological systems. These findings can clarify mechanisms of action and support the development and evaluation of heparin-based therapies.