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A Microfluidic Flow Chamber Model for Platelet Transfusion and Hemostasis Measures Platelet Deposition and Fibrin Formation in Real-time

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Published on: February 14, 2017

Metals in air pollution particles decrease whole-blood coagulation time.

Rahul G Sangani¹, Joleen M Soukup, Andrew J Ghio

¹Human Studies Division, National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, Chapel Hill, North Carolina, USA.

Inhalation Toxicology

|April 15, 2010

Summary

This summary is machine-generated.

Air pollution particles contain metals that shorten blood clotting time. These metals, particularly iron and zinc, may explain how pollution increases clotting risk in people.

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Published on: July 12, 2024

Area of Science:

Environmental Health
Toxicology
Hematology

Background:

The procoagulative effects of air pollution exposure lack a defined mechanism.
Particulate matter (PM) is a component of air pollution with potential health impacts.

Purpose of the Study:

To investigate if water-soluble components of air pollution particles affect blood coagulation.
To determine if metals within these components are responsible for procoagulative effects.

Main Methods:

Exposure of whole blood to the water-soluble fraction of particulate matter.
Assessing coagulation time following exposure.
Testing the effects of metal sulfates and iron chelators/complexes.

Main Results:

Water-soluble PM components significantly reduced whole-blood coagulation time.
Deferoxamine (an iron chelator) prolonged coagulation, while ferroxamine did not.
Iron and zinc sulfates markedly shortened coagulation time, even at low doses.
Iron complexes demonstrated procoagulative activity, unlike citrate and EDTA.

Conclusions:

Metals present in the water-soluble fraction of air pollution particles decrease whole-blood coagulation time.
These metal-induced procoagulative effects may contribute to health risks associated with air pollution exposure.