Endothelial Dysfunction: Associations with Exposure to Ambient Fine Particles in Diabetic Individuals

Overview

Journal Environ Health Perspect

Date 2008 Dec 17

PMID 19079718

Citations 65

Authors

Alexandra Schneider

Lucas Neas

Margaret C Herbst

Martin Case

Ronald W Williams

Wayne Cascio

Alan Hinderliter

Fernando Holguin

John B Buse

Kathleen Dungan

Maya Styner

Annette Peters

Robert B Devlin

Affiliations

Soon will be listed here.

Abstract

Background: Exposure to fine airborne particulate matter [< or =2.5 microm in aerodynamic diameter (PM(2.5))] has been associated with cardiovascular and hematologic effects, especially in older people with cardiovascular disease. Some epidemiologic studies suggest that adults with diabetes also may be a particularly susceptible population.

Objectives: The purpose of this study was to analyze the short-term effects of ambient PM(2.5) on markers of endothelial function in diabetic volunteers.

Methods: We conducted a prospective panel study in 22 people with type 2 diabetes mellitus in Chapel Hill, North Carolina (USA), from November 2004 to December 2005. We acquired daily measurements of PM(2.5) and meteorologic data at central monitoring sites. On 4 consecutive days, we measured endothelial function by brachial artery ultrasound in all participants and by pulsewave measurements in a subgroup. Data were analyzed using additive mixed models with a random participant effect and adjusted for season, day of the week, and meteorology.

Results: Flow-mediated dilatation decreased in association with PM(2.5) during the first 24 hr, whereas small-artery elasticity index decreased with a delay of 1 and 3 days. These PM(2.5)-associated decrements in endothelial function were greater among participants with a high body mass index, high glycosylated hemoglobin A1c, low adiponectin, or the null polymorphism of glutathione S-transferase M1. However, high levels of myeloperoxidase on the examination day led to strongest effects on endothelial dysfunction.

Conclusions: These data demonstrate that PM(2.5) exposure may cause immediate endothelial dysfunction. Clinical characteristics associated with insulin resistance were associated with enhanced effects of PM on endothelial function. In addition, participants with greater oxidative potential seem to be more susceptible.

Citing Articles

Association between Ambient Particulate Air Pollution and Soluble Biomarkers of Endothelial Function: A Meta-Analysis.

Wang K, Lei L, Li G, Lan Y, Wang W, Zhu J Toxics. 2024; 12(1).

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PM exposure, glycemic markers and incidence of type 2 diabetes in two large Indian cities.

Mandal S, Jaganathan S, Kondal D, Schwartz J, Tandon N, Mohan V BMJ Open Diabetes Res Care. 2023; 11(5).

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Fine Particulate Matter (PM2.5)-Induced Pulmonary Oxidative Stress Contributes to Changes in the Plasma Lipidome and Liver Transcriptome in Mice.

Kurlawala Z, Singh P, Hill B, Haberzettl P Toxicol Sci. 2023; .

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A Review of the Null Genotype Modifies the Association between Air Pollutant Exposure and Health Problems.

Nugrahaningsih D, Wihadmadyatami H, Widyarini S, Wijayaningsih R Int J Genomics. 2023; 2023:4961487.

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Roy B, Yang Z, Pan G, Roth K, Agarwal M, Sharma R Toxics. 2022; 10(6).

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