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Wang X, Chen Z, Cheng D, Cao Y, Xie X, Zhou J, Wu Y, Li X, Yu J, Yang B. Association between urinary metabolites of volatile organic compounds and cardiovascular disease in the general population from NHANES 2011-2018. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 264:115412. [PMID: 37714034 DOI: 10.1016/j.ecoenv.2023.115412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 08/23/2023] [Accepted: 08/25/2023] [Indexed: 09/17/2023]
Abstract
BACKGROUND Volatile organic compounds (VOCs) contain hundreds of chemicals and human exposure to VOCs is pervasive. However, most studies have considered only a single chemical or a class of similar chemicals. OBJECTIVE We aimed to investigate the association between urinary volatile organic compound metabolites (mVOCs) and the risk of cardiovascular disease (CVD) in the general population. METHODS The data in this study were collected from the National Health and Nutrition Examination Survey in 2011-2018. Eligible patients were aged ≥20 years for whom complete data for 20 types of urinary mVOCs and CVD outcomes were available. Multivariate logistic regression models were used to elucidate the association between mVOCs and CVD. Generalized additive models were used to examine the nonlinear relationships between mVOCs and CVD. RESULTS 6814 indiviuals were included in the final analysis, of whom 508 had CVD. Higher urinary concentrations of N-acetyl-S-(2-carboxyethyl)-L-cysteine (CEMA) and N-Acetyl-S-(2-cyanoethyl)-l-cysteine (CYMA) and a lower urinary concentration of 2-aminothiazoline-4-carboxylic acid (ATCA) were associated with CVD outcomes after the adjustment for potential confounding factors. A nonlinear relationship and a threshold effect were only observed between N-acetyl-S-(N-methylcarbamoyl)-l-cysteine (AMCC) and CVD among 20 types of mVOCs. There was a significantly positive correlation between AMCC and CVD when AMCC concentration was >2.32 g/mL. CONCLUSION The findings of this study suggested a significant correlation between urinary VOC metabolites and CVD. Urinary mVOCs may indicate hazardous exposure or distinct metabolic traits in patients with CVD.
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Affiliation(s)
- Xuecheng Wang
- Department of Cardiovascular Medicine, Shanghai East Hospital, School of Medicine, TongjiUniversity, 150 Jimo Road, Shanghai 200120, PR China
| | - Zijun Chen
- Department of Cardiovascular Medicine, Shanghai East Hospital, School of Medicine, TongjiUniversity, 150 Jimo Road, Shanghai 200120, PR China
| | - Dian Cheng
- Department of Cardiovascular Medicine, Shanghai East Hospital, School of Medicine, TongjiUniversity, 150 Jimo Road, Shanghai 200120, PR China
| | - Yue Cao
- School of Resources and Environmental Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China
| | - Xin Xie
- Department of Cardiovascular Medicine, Shanghai East Hospital, School of Medicine, TongjiUniversity, 150 Jimo Road, Shanghai 200120, PR China
| | - Jian Zhou
- Department of Cardiovascular Medicine, Shanghai East Hospital, School of Medicine, TongjiUniversity, 150 Jimo Road, Shanghai 200120, PR China
| | - Yizhang Wu
- Department of Cardiovascular Medicine, Shanghai East Hospital, School of Medicine, TongjiUniversity, 150 Jimo Road, Shanghai 200120, PR China
| | - Xiaorong Li
- Department of Cardiovascular Medicine, Shanghai East Hospital, School of Medicine, TongjiUniversity, 150 Jimo Road, Shanghai 200120, PR China
| | - Jinbo Yu
- Department of Cardiovascular Medicine, Shanghai East Hospital, School of Medicine, TongjiUniversity, 150 Jimo Road, Shanghai 200120, PR China.
| | - Bing Yang
- Department of Cardiovascular Medicine, Shanghai East Hospital, School of Medicine, TongjiUniversity, 150 Jimo Road, Shanghai 200120, PR China.
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McGraw KE, Konkle SL, Riggs DW, Rai SN, DeJarnett N, Xie Z, Keith RJ, Oshunbade A, Hall ME, Shimbo D, Bhatnagar A. Exposure to Volatile Organic Compounds Is Associated with Hypertension in Black Adults: The Jackson Heart Study. ENVIRONMENTAL RESEARCH 2023; 223:115384. [PMID: 36796615 PMCID: PMC10134439 DOI: 10.1016/j.envres.2023.115384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 12/15/2022] [Accepted: 01/27/2023] [Indexed: 05/03/2023]
Abstract
BACKGROUND The prevalence of hypertension is higher among Black adults than among White and Hispanic adults. Nevertheless, reasons underlying the higher rates of hypertension in the Black population remain unclear but may relate to exposure to environmental chemicals such as volatile organic compounds (VOCs). METHODS We evaluated the associations of blood pressure (BP) and hypertension with VOC exposure in non-smokers and smokers in a subgroup of the Jackson Heart Study (JHS), consisting of 778 never smokers and 416 age- and sex-matched current smokers. We measured urinary metabolites of 17 VOCs by mass spectrometry. RESULTS After adjusting for covariates, we found that amoong non-smokers, metabolites of acrolein and crotonaldehyde were associated with a 1.6 mm Hg (95%CI: 0.4, 2.7; p = 0.007) and a 0.8 mm Hg (95%CI: 0.01, 1.6; p = 0.049) higher systolic BP, and the styrene metabolite was associated with a 0.4 mm Hg (95%CI: 0.09, 0.8, p = 0.02) higher diastolic BP. Current smokers had 2.8 mm Hg (95% CI 0.5, 5.1) higher systolic BP. They were at higher risk of hypertension (relative risk = 1.2; 95% CI, 1.1, 1.4), and had higher urinary levels of several VOC metabolites. Individuals who smoke had higher levels of the urinary metabolites of acrolein, 1,3-butadiene, and crotonaldehyde and were associated with higher systolic BP. The associations were stronger among participants who were <60 years of age and male. Using Bayesian kernel machine regression to assess the effects of multiple VOC exposures, we found that the relationship between VOCs and hypertension among non-smokers was driven primarily by acrolein and styrene in non-smokers, and crotonaldehyde in smokers. CONCLUSIONS Hypertension in Black individuals may be attributed, in part, to VOC exposure from the environment or tobacco smoke.
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Affiliation(s)
- Katlyn E McGraw
- Christina Lee Brown Envirome Institute, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA; University of Louisville Superfund Research Center, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA; University of Louisville School of Public Health and Information Sciences, 485 E Gray Street, Louisville, KY, 40202, USA
| | - Stacey L Konkle
- Christina Lee Brown Envirome Institute, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA; University of Louisville Superfund Research Center, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA; University of Louisville School of Public Health and Information Sciences, 485 E Gray Street, Louisville, KY, 40202, USA
| | - Daniel W Riggs
- Christina Lee Brown Envirome Institute, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA; University of Louisville Superfund Research Center, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA; University of Louisville School of Public Health and Information Sciences, 485 E Gray Street, Louisville, KY, 40202, USA
| | - Shesh N Rai
- Christina Lee Brown Envirome Institute, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA; University of Louisville Superfund Research Center, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA; University of Louisville School of Public Health and Information Sciences, 485 E Gray Street, Louisville, KY, 40202, USA
| | - Natasha DeJarnett
- Christina Lee Brown Envirome Institute, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA
| | - Zhengzhi Xie
- Christina Lee Brown Envirome Institute, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA
| | - Rachel J Keith
- Christina Lee Brown Envirome Institute, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA; University of Louisville Superfund Research Center, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA
| | - Adebamike Oshunbade
- University of Mississippi Medical Center Department of Medicine - Cardiology, 2500 North State St, Jackson, MS, 39216, USA
| | - Michael E Hall
- University of Mississippi Medical Center Department of Medicine - Cardiology, 2500 North State St, Jackson, MS, 39216, USA
| | - Diachi Shimbo
- Columbia University Department of Medicine, 161 Fort Washington Ave, New York, NY, USA
| | - Aruni Bhatnagar
- Christina Lee Brown Envirome Institute, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA; University of Louisville Superfund Research Center, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA.
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Stapelberg NJC, Branjerdporn G, Adhikary S, Johnson S, Ashton K, Headrick J. Environmental Stressors and the PINE Network: Can Physical Environmental Stressors Drive Long-Term Physical and Mental Health Risks? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:13226. [PMID: 36293807 PMCID: PMC9603079 DOI: 10.3390/ijerph192013226] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/10/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
Both psychosocial and physical environmental stressors have been linked to chronic mental health and chronic medical conditions. The psycho-immune-neuroendocrine (PINE) network details metabolomic pathways which are responsive to varied stressors and link chronic medical conditions with mental disorders, such as major depressive disorder via a network of pathophysiological pathways. The primary objective of this review is to explore evidence of relationships between airborne particulate matter (PM, as a concrete example of a physical environmental stressor), the PINE network and chronic non-communicable diseases (NCDs), including mental health sequelae, with a view to supporting the assertion that physical environmental stressors (not only psychosocial stressors) disrupt the PINE network, leading to NCDs. Biological links have been established between PM exposure, key sub-networks of the PINE model and mental health sequelae, suggesting that in theory, long-term mental health impacts of PM exposure may exist, driven by the disruption of these biological networks. This disruption could trans-generationally influence health; however, long-term studies and information on chronic outcomes following acute exposure event are still lacking, limiting what is currently known beyond the acute exposure and all-cause mortality. More empirical evidence is needed, especially to link long-term mental health sequelae to PM exposure, arising from PINE pathophysiology. Relationships between physical and psychosocial stressors, and especially the concept of such stressors acting together to impact on PINE network function, leading to linked NCDs, evokes the concept of syndemics, and these are discussed in the context of the PINE network.
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Affiliation(s)
- Nicolas J. C. Stapelberg
- Gold Coast Hospital and Health Service, Gold Coast, QLD 4215, Australia
- Faculty of Health Sciences and Medicine, Bond University, Gold Coast, QLD 4226, Australia
| | - Grace Branjerdporn
- Gold Coast Hospital and Health Service, Gold Coast, QLD 4215, Australia
- Faculty of Health Sciences and Medicine, Bond University, Gold Coast, QLD 4226, Australia
| | - Sam Adhikary
- Mater Young Adult Health Centre, Mater Hospital, Brisbane, QID 4101, Australia
| | - Susannah Johnson
- Gold Coast Hospital and Health Service, Gold Coast, QLD 4215, Australia
| | - Kevin Ashton
- Faculty of Health Sciences and Medicine, Bond University, Gold Coast, QLD 4226, Australia
| | - John Headrick
- School of Medical Science, Griffith University, Gold Coast, QID 4215, Australia
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Environmental exposure to volatile organic compounds is associated with endothelial injury. Toxicol Appl Pharmacol 2022; 437:115877. [PMID: 35045333 PMCID: PMC10045232 DOI: 10.1016/j.taap.2022.115877] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 12/23/2021] [Accepted: 01/05/2022] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Volatile organic compounds (VOCs) are airborne toxicants abundant in outdoor and indoor air. High levels of VOCs are also present at various Superfund and other hazardous waste sites; however, little is known about the cardiovascular effects of VOCs. We hypothesized that ambient exposure to VOCs exacerbate cardiovascular disease (CVD) risk by depleting circulating angiogenic cells (CACs). APPROACH AND RESULTS In this cross-sectional study, we recruited 603 participants with low-to-high CVD risk and measured 15 subpopulations of CACs by flow cytometry and 16 urinary metabolites of 12 VOCs by LC/MS/MS. Associations between CAC and VOC metabolite levels were examined using generalized linear models in the total sample, and separately in non-smokers. In single pollutant models, metabolites of ethylbenzene/styrene and xylene, were negatively associated with CAC levels in both the total sample, and in non-smokers. The metabolite of acrylonitrile was negatively associated with CD45dim/CD146+/CD34+/AC133+ cells and CD45+/CD146+/AC133+, and the toluene metabolite with AC133+ cells. In analysis of non-smokers (n = 375), multipollutant models showed a negative association with metabolites of ethylbenzene/styrene, benzene, and xylene with CD45dim/CD146+/CD34+ cells, independent of other VOC metabolite levels. Cumulative VOC risk score showed a strong negative association with CD45dim/CD146+/CD34+ cells, suggesting that total VOC exposure has a cumulative effect on pro-angiogenic cells. We found a non-linear relationship for benzene, which showed an increase in CAC levels at low, but depletion at higher levels of exposure. Sex and race, hypertension, and diabetes significantly modified VOC associated CAC depletion. CONCLUSION Low-level ambient exposure to VOCs is associated with CAC depletion, which could compromise endothelial repair and angiogenesis, and exacerbate CVD risk.
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Jin L, Lorkiewicz P, Xie Z, Bhatnagar A, Srivastava S, Conklin DJ. Acrolein but not its metabolite, 3-Hydroxypropylmercapturic acid (3HPMA), activates vascular transient receptor potential Ankyrin-1 (TRPA1): Physiological to toxicological implications. Toxicol Appl Pharmacol 2021; 426:115647. [PMID: 34271065 PMCID: PMC8343963 DOI: 10.1016/j.taap.2021.115647] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 07/07/2021] [Accepted: 07/08/2021] [Indexed: 11/17/2022]
Abstract
Acrolein, an electrophilic α,β-unsaturated aldehyde, is present in foods and beverages, and is a product of incomplete combustion, and thus, reaches high ppm levels in tobacco smoke and structural fires. Exposure to acrolein is linked with cardiopulmonary toxicity and cardiovascular disease risk. The hypothesis of this study is the direct effects of acrolein in isolated murine blood vessels (aorta and superior mesenteric artery, SMA) are transient receptor potential ankyrin-1 (TRPA1) dependent. Using isometric myography, isolated aorta and SMA were exposed to increasing levels of acrolein. Acrolein inhibited phenylephrine (PE)-induced contractions (approximately 90%) in aorta and SMA of male and female mice in a concentration-dependent (0.01-100 μM) manner. The major metabolite of acrolein, 3-hydroxypropylmercapturic acid (3HPMA), also relaxed PE-precontracted SMA. As the SMA was 20× more sensitive to acrolein than aorta (SMA EC50 0.8 ± 0.2 μM; aorta EC50 > 29.4 ± 4.4 μM), the mechanisms of acrolein-induced relaxation were studied in SMA. The potency of acrolein-induced relaxation was inhibited significantly by: 1) mechanically-impaired endothelium; 2) Nω-Nitro-L-arginine methyl ester hydrochloride (L-NAME); 3) guanylyl cyclase (GC) inhibitor (ODQ); and, 4) a TRPA1 antagonist (A967079). TRPA1 positive immunofluorescence was present in the endothelium. Compared with other known TRPA1 agonists, including allyl isothiocyanate (AITC), cinnamaldehyde, crotonaldehyde, and formaldehyde, acrolein stimulated a more potent TRPA1-dependent relaxation. Acrolein, at high concentration [100 μM], induced tension oscillations (spasms) independent of TRPA1 in precontracted SMA but not in aorta. In conclusion, acrolein is vasorelaxant at low levels (physiological) yet vasotoxic at high levels (toxicological).
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Affiliation(s)
- L Jin
- Christina Lee Brown Envirome Institute, University of Louisville, Louisville, KY, USA; Diabetes and Obesity Center, University of Louisville, Louisville, KY, USA; American Heart Association-Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY, USA
| | - P Lorkiewicz
- Christina Lee Brown Envirome Institute, University of Louisville, Louisville, KY, USA; Diabetes and Obesity Center, University of Louisville, Louisville, KY, USA; American Heart Association-Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY, USA
| | - Z Xie
- Christina Lee Brown Envirome Institute, University of Louisville, Louisville, KY, USA; Diabetes and Obesity Center, University of Louisville, Louisville, KY, USA
| | - A Bhatnagar
- Christina Lee Brown Envirome Institute, University of Louisville, Louisville, KY, USA; Diabetes and Obesity Center, University of Louisville, Louisville, KY, USA; American Heart Association-Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY, USA; Superfund Research Center, University of Louisville, Louisville, KY, USA
| | - S Srivastava
- Christina Lee Brown Envirome Institute, University of Louisville, Louisville, KY, USA; Diabetes and Obesity Center, University of Louisville, Louisville, KY, USA; American Heart Association-Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY, USA; Superfund Research Center, University of Louisville, Louisville, KY, USA
| | - D J Conklin
- Christina Lee Brown Envirome Institute, University of Louisville, Louisville, KY, USA; Diabetes and Obesity Center, University of Louisville, Louisville, KY, USA; American Heart Association-Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY, USA; Superfund Research Center, University of Louisville, Louisville, KY, USA.
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6
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McGraw KE, Riggs DW, Rai S, Navas-Acien A, Xie Z, Lorkiewicz P, Lynch J, Zafar N, Krishnasamy S, Taylor KC, Conklin DJ, DeFilippis AP, Srivastava S, Bhatnagar A. Exposure to volatile organic compounds - acrolein, 1,3-butadiene, and crotonaldehyde - is associated with vascular dysfunction. ENVIRONMENTAL RESEARCH 2021; 196:110903. [PMID: 33636185 PMCID: PMC8119348 DOI: 10.1016/j.envres.2021.110903] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 02/03/2021] [Accepted: 02/16/2021] [Indexed: 05/03/2023]
Abstract
BACKGROUND Cardiovascular disease (CVD) is the leading cause of mortality worldwide. Exposure to air pollution, specifically particulate matter of diameter ≤2.5 μm (PM2.5), is a well-established risk factor for CVD. However, the contribution of gaseous pollutant exposure to CVD risk is less clear. OBJECTIVE To examine the vascular effects of exposure to individual volatile organic compounds (VOCs) and mixtures of VOCs. METHODS We measured urinary metabolites of acrolein (CEMA and 3HPMA), 1,3-butadiene (DHBMA and MHBMA3), and crotonaldehyde (HPMMA) in 346 nonsmokers with varying levels of CVD risk. On the day of enrollment, we measured blood pressure (BP), reactive hyperemia index (RHI - a measure of endothelial function), and urinary levels of catecholamines and their metabolites. We used generalized linear models for evaluating the association between individual VOC metabolites and BP, RHI, and catecholamines, and we used Bayesian Kernel Machine Regression (BKMR) to assess exposure to VOC metabolite mixtures and BP. RESULTS We found that the levels of 3HPMA were positively associated with systolic BP (0.98 mmHg per interquartile range (IQR) of 3HPMA; CI: 0.06, 1.91; P = 0.04). Stratified analysis revealed an increased association with systolic BP in Black participants despite lower levels of urinary 3HPMA. This association was independent of PM2.5 exposure and BP medications. BKMR analysis confirmed that 3HPMA was the major metabolite associated with higher BP in the presence of other metabolites. We also found that 3HPMA and DHBMA were associated with decreased endothelial function. For each IQR of 3HPMA or DHBMA, there was a -4.4% (CI: -7.2, -0.0; P = 0.03) and a -3.9% (CI: -9.4, -0.0; P = 0.04) difference in RHI, respectively. Although in the entire cohort the levels of several urinary VOC metabolites were weakly associated with urinary catecholamines and their metabolites, in Black participants, DHBMA levels showed strong associations with urinary norepinephrine and normetanephrine levels. DISCUSSION Exposure to acrolein and 1,3-butadiene is associated with endothelial dysfunction and may contribute to elevated risk of hypertension in participants with increased sympathetic tone, particularly in Black individuals.
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Affiliation(s)
- Katlyn E McGraw
- Christina Lee Brown Envirome Institute, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA; Superfund Research Center, 302 E Muhammad Ali Blvd, Louisville, KY 40202, USA; University of Louisville School of Public Health and Information Sciences, USA; Department of Environmental and Occupational Health Sciences, USA
| | - Daniel W Riggs
- Christina Lee Brown Envirome Institute, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA; Superfund Research Center, 302 E Muhammad Ali Blvd, Louisville, KY 40202, USA; University of Louisville School of Public Health and Information Sciences, USA; Department of Epidemiology and Population Health, USA
| | - Shesh Rai
- Christina Lee Brown Envirome Institute, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA; Superfund Research Center, 302 E Muhammad Ali Blvd, Louisville, KY 40202, USA; University of Louisville School of Public Health and Information Sciences, USA; Department of Bioinformatics and Biostatistics, 485 E Gray Street, Louisville, KY, 40202, USA
| | - Ana Navas-Acien
- Columbia University Mailman School of Public Health, USA; Department of Environmental Health Science, 722 W 168th St, New York, NY, 10032, USA
| | - Zhengzhi Xie
- Christina Lee Brown Envirome Institute, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA; Superfund Research Center, 302 E Muhammad Ali Blvd, Louisville, KY 40202, USA
| | - Pawel Lorkiewicz
- Christina Lee Brown Envirome Institute, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA; Superfund Research Center, 302 E Muhammad Ali Blvd, Louisville, KY 40202, USA
| | - Jordan Lynch
- Christina Lee Brown Envirome Institute, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA; Superfund Research Center, 302 E Muhammad Ali Blvd, Louisville, KY 40202, USA
| | - Nagma Zafar
- Christina Lee Brown Envirome Institute, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA
| | - Sathya Krishnasamy
- Christina Lee Brown Envirome Institute, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA
| | - Kira C Taylor
- University of Louisville School of Public Health and Information Sciences, USA; Department of Epidemiology and Population Health, USA
| | - Daniel J Conklin
- Christina Lee Brown Envirome Institute, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA; Superfund Research Center, 302 E Muhammad Ali Blvd, Louisville, KY 40202, USA
| | - Andrew P DeFilippis
- Christina Lee Brown Envirome Institute, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA; Superfund Research Center, 302 E Muhammad Ali Blvd, Louisville, KY 40202, USA
| | - Sanjay Srivastava
- Christina Lee Brown Envirome Institute, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA; Superfund Research Center, 302 E Muhammad Ali Blvd, Louisville, KY 40202, USA; University of Louisville School of Public Health and Information Sciences, USA
| | - Aruni Bhatnagar
- Christina Lee Brown Envirome Institute, 302 E Muhammad Ali Blvd, Louisville, KY, 40202, USA; Superfund Research Center, 302 E Muhammad Ali Blvd, Louisville, KY 40202, USA.
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Horinouchi T, Mazaki Y, Terada K, Miwa S. Cigarette Smoke Extract and Its Cytotoxic Factor Acrolein Inhibit Nitric Oxide Production in Human Vascular Endothelial Cells. Biol Pharm Bull 2020; 43:1804-1809. [PMID: 32879145 DOI: 10.1248/bpb.b20-00522] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Acrolein (ACR), a highly reactive α,β-unsaturated aldehyde, is a major cytotoxic factor in nicotine- and tar-free cigarette smoke extract (CSE). There are conflicting results regarding endothelial functions despite the fact that both CSE and ACR cause cellular damage. Several lines of evidence indicate that CSE impairs endothelium-derived nitric oxide (NO)-dependent vasodilation by reducing the activity and protein expression of endothelial NO synthase (eNOS), whereas ACR elicits endothelium-dependent vasorelaxation by increasing the production of NO and expression of eNOS. To clarify whether CSE and its cytotoxic factor ACR cause endothelial dysfunction, this study examined the effects of CSE and ACR on human vascular endothelial EA.hy926 cells. CSE and ACR reduced the phosphorylation of eNOS at serine (Ser)1177 and total expression of eNOS. The CSE- and ACR-induced decrease in the phosphorylation and expression of eNOS was counteracted by glutathione (reduced form), an antioxidant. Basal NO production was inhibited by CSE, ACR, NG-nitro-L-arginine methyl ester (a competitive eNOS inhibitor), and nominally Ca2+-free solution supplemented with BAPTA-AM (a membrane permeable Ca2+ chelator). These results indicate that CSE and ACR increase oxidative stress, and reduce NO production by reducing the activity and total protein level of eNOS.
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Affiliation(s)
- Takahiro Horinouchi
- Department of Cellular Pharmacology, Graduate School of Medicine, Hokkaido University
| | - Yuichi Mazaki
- Department of Cellular Pharmacology, Graduate School of Medicine, Hokkaido University
| | - Koji Terada
- Department of Biochemistry and Molecular Biology, Shiga University of Medical Science
| | - Soichi Miwa
- Department of Cellular Pharmacology, Graduate School of Medicine, Hokkaido University
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Jin L, Jagatheesan G, Lynch J, Guo L, Conklin DJ. Crotonaldehyde-induced vascular relaxation and toxicity: Role of endothelium and transient receptor potential ankyrin-1 (TRPA1). Toxicol Appl Pharmacol 2020; 398:115012. [PMID: 32320793 PMCID: PMC7375699 DOI: 10.1016/j.taap.2020.115012] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 04/13/2020] [Accepted: 04/15/2020] [Indexed: 01/25/2023]
Abstract
INTRODUCTION Crotonaldehyde (CR) is an electrophilic α,β-unsaturated aldehyde present in foods and beverages and is a minor metabolite of 1,3-butadiene. CR is a product of incomplete combustion, and is at high levels in smoke of cigarettes and structural fires. Exposure to CR has been linked to cardiopulmonary toxicity and cardiovascular disease. OBJECTIVE The purpose of this study was to examine the direct effects of CR in murine blood vessels (aorta and superior mesenteric artery, SMA) using an in vitro system. METHODS AND RESULTS CR induced concentration-dependent (1-300 μM) relaxations (75-80%) in phenylephrine (PE) precontracted aorta and SMA. Because the SMA was 20× more sensitive to CR than aorta (SMA EC50 3.8 ± 0.5 μM; aorta EC50 76.0 ± 2.0 μM), mechanisms of CR relaxation were studied in SMA. The CR-induced relaxation at low concentrations (1-30 μM) was inhibited by: 1) mechanically-impaired endothelium; 2) Nω-Nitro-L-arginine methyl ester hydrochloride (L-NAME); 3) guanylyl cyclase (GC) inhibitor (ODQ); 4) transient receptor potential ankyrin-1 (TRPA1) antagonist (A967079); and, 5) by non-vasoactive level of nicotine (1 μM). Similarly, a TRPA1 agonist, allyl isothiocyanate (AITC; mustard oil), stimulated SMA relaxation dependent on TRPA1, endothelium, NO, and GC. Consistent with these mechanisms, TRPA1 was present in the SMA endothelium. CR, at higher concentrations (100-300 μM), induced tension oscillations (spasms) and irreversibly impaired contractility (a vasotoxic effect enhanced by impaired endothelium). CONCLUSIONS CR relaxation depends on a functional endothelium and TRPA1, whereas vasotoxicity is enhanced by endothelium dysfunction. Thus, CR is both vasoactive and vasotoxic along a concentration continuum.
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Affiliation(s)
- L Jin
- Department of Anesthesiology, Critical Care and Pain Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China; Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, Louisville, KY, USA; Christina Lee Brown Envirome Institute, University of Louisville, Louisville, KY, USA; Diabetes and Obesity Center, University of Louisville, Louisville, KY, USA; American Heart Association-Tobacco Regulation Center, University of Louisville, Louisville, KY, USA
| | - G Jagatheesan
- Christina Lee Brown Envirome Institute, University of Louisville, Louisville, KY, USA; Diabetes and Obesity Center, University of Louisville, Louisville, KY, USA; American Heart Association-Tobacco Regulation Center, University of Louisville, Louisville, KY, USA
| | - J Lynch
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, Louisville, KY, USA; Christina Lee Brown Envirome Institute, University of Louisville, Louisville, KY, USA; Diabetes and Obesity Center, University of Louisville, Louisville, KY, USA; American Heart Association-Tobacco Regulation Center, University of Louisville, Louisville, KY, USA
| | - L Guo
- Christina Lee Brown Envirome Institute, University of Louisville, Louisville, KY, USA; Diabetes and Obesity Center, University of Louisville, Louisville, KY, USA; American Heart Association-Tobacco Regulation Center, University of Louisville, Louisville, KY, USA
| | - D J Conklin
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, Louisville, KY, USA; Christina Lee Brown Envirome Institute, University of Louisville, Louisville, KY, USA; Diabetes and Obesity Center, University of Louisville, Louisville, KY, USA; American Heart Association-Tobacco Regulation Center, University of Louisville, Louisville, KY, USA.
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Jin L, Jagatheesan G, Guo L, Nystoriak M, Malovichko M, Lorkiewicz P, Bhatnagar A, Srivastava S, Conklin DJ. Formaldehyde Induces Mesenteric Artery Relaxation via a Sensitive Transient Receptor Potential Ankyrin-1 (TRPA1) and Endothelium-Dependent Mechanism: Potential Role in Postprandial Hyperemia. Front Physiol 2019; 10:277. [PMID: 30984013 PMCID: PMC6448550 DOI: 10.3389/fphys.2019.00277] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 03/04/2019] [Indexed: 11/30/2022] Open
Abstract
Formaldehyde (FA), the smallest aldehyde, is generated endogenously, and is widespread in the environment in foods, beverages and as a gas phase product of incomplete combustion. The main metabolite of FA, formate, was increased significantly in murine urine (∼3×) after overnight feeding. Because feeding increases mesenteric blood flow, we explored the direct effects of FA in isolated murine superior mesenteric artery (SMA). Over the concentration range of 30–1,200 μM, FA strongly and reversibly relaxed contractions of SMA induced by three different agonists: phenylephrine (PE), thromboxane A2 analog (U46,619) and high potassium (60K, 60 mM K+). Formate (to 1.5 mM) induced a modest relaxation. FA (>1,500 μM) irreversibly depressed vascular function in SMA indicating vasotoxicity. The sensitivity (EC50) but not the efficacy (% relaxation) of FA-induced relaxations was dependent on blood vessel type (SMA << aorta) and contractile agonist (PE, EC50= 52 ± 14 μM; U46,619, EC50= 514 ± 129 μM; 60K, EC50= 1,093 ± 87 μM). The most sensitive component of FA vasorelaxation was within physiological levels (30–150 μM) and was inhibited significantly by: (1) mechanically impaired endothelium; (2) Nω-Nitro-L-arginine methyl ester hydrochloride (L-NAME); (3) transient receptor potential ankyrin-1 (TRPA1) antagonist (A967079); (4) guanylyl cyclase (GC) inhibitor (ODQ); and, (5) K+ channel inhibitor (BaCl2). A similar mechanism of SMA vasorelaxation was stimulated by the TRPA1 agonist cinnamaldehyde. Positive TRPA1 immunofluorescent staining and gene-specific sequence were present in SMA but not in aorta. These data indicate FA, but not formate, robustly relaxes SMA via a sensitive TRPA1- and endothelium-dependent mechanism that is absent in aorta. Thus, as FA levels increase with feeding, FA likely contributes to the physiological reflex of post-prandial hyperemia via SMA vasodilatation.
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Affiliation(s)
- L Jin
- Department of Anesthesiology, Critical Care and Pain Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY, United States
| | - G Jagatheesan
- Envirome Institute, University of Louisville, Louisville, KY, United States.,Diabetes and Obesity Center, University of Louisville, Louisville, KY, United States.,Department of Medicine, University of Louisville, Louisville, KY, United States.,American Heart Association Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY, United States
| | - L Guo
- Envirome Institute, University of Louisville, Louisville, KY, United States.,Diabetes and Obesity Center, University of Louisville, Louisville, KY, United States.,Department of Medicine, University of Louisville, Louisville, KY, United States.,American Heart Association Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY, United States
| | - M Nystoriak
- Envirome Institute, University of Louisville, Louisville, KY, United States.,Diabetes and Obesity Center, University of Louisville, Louisville, KY, United States.,Department of Medicine, University of Louisville, Louisville, KY, United States.,American Heart Association Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY, United States
| | - M Malovichko
- Envirome Institute, University of Louisville, Louisville, KY, United States.,Department of Medicine, University of Louisville, Louisville, KY, United States.,American Heart Association Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY, United States
| | - P Lorkiewicz
- Envirome Institute, University of Louisville, Louisville, KY, United States.,Diabetes and Obesity Center, University of Louisville, Louisville, KY, United States.,Department of Medicine, University of Louisville, Louisville, KY, United States.,American Heart Association Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY, United States
| | - A Bhatnagar
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY, United States.,Envirome Institute, University of Louisville, Louisville, KY, United States.,Diabetes and Obesity Center, University of Louisville, Louisville, KY, United States.,Department of Medicine, University of Louisville, Louisville, KY, United States.,American Heart Association Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY, United States
| | - S Srivastava
- Envirome Institute, University of Louisville, Louisville, KY, United States.,Diabetes and Obesity Center, University of Louisville, Louisville, KY, United States.,Department of Medicine, University of Louisville, Louisville, KY, United States.,American Heart Association Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY, United States
| | - D J Conklin
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY, United States.,Envirome Institute, University of Louisville, Louisville, KY, United States.,Diabetes and Obesity Center, University of Louisville, Louisville, KY, United States.,Department of Medicine, University of Louisville, Louisville, KY, United States.,American Heart Association Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY, United States
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10
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Keith RJ, Fetterman JL, Riggs DW, O'Toole T, Nystoriak JL, Holbrook M, Lorkiewicz P, Bhatnagar A, DeFilippis AP, Hamburg NM. Protocol to assess the impact of tobacco-induced volatile organic compounds on cardiovascular risk in a cross- sectional cohort: Cardiovascular Injury due to Tobacco Use study. BMJ Open 2018; 8:e019850. [PMID: 29602846 PMCID: PMC5884372 DOI: 10.1136/bmjopen-2017-019850] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 02/14/2018] [Accepted: 02/19/2018] [Indexed: 11/12/2022] Open
Abstract
INTRODUCTION Tobacco use leads to increased mortality, the majority of which is attributed to cardiovascular disease. Despite this knowledge, the early cardiovascular impact of tobacco product use is not well understood. Tobacco use increases exposure to harmful and potentially harmful constituents including volatile organic compounds (VOCs) such as acrolein and crotonaldehyde, which may contribute to cardiovascular risk. The link between exposure patterns, risk profiles and demographic distribution of tobacco product users, particularly users of new and emerging products, are not well known. Therefore, we designed the Cardiovascular Injury due to Tobacco Use (CITU) study to assess population characteristics, demographic features, exposure patterns and cardiovascular risk in relation to tobacco. METHODS AND ANALYSIS We present the design and methodology of the CITU study, a cross-sectional observational tobacco study conducted in Boston, Massachusetts and Louisville, Kentucky starting in 2014. Healthy participants 21-45 years of age who use tobacco products, including electronic nicotine devices, or who never used tobacco are being recruited. The study aims to recruit an evenly split cohort of African-Americans and Caucasians, that is, sex balanced for evaluation of self-reported tobacco exposure, VOC exposure and tobacco-induced injury profiling. Detailed information about participant's demographics, health status and lifestyle is also collected. ETHICS AND DISSEMINATION The study protocol was approved institutional review boards at both participating universities. All study protocols will protect participant confidentiality. Results from the study will be disseminated via peer-reviewed journals and presented at scientific conferences.
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Affiliation(s)
- Rachel J Keith
- Division of Cardiovascular Medicine, University of Louisville School of Medicine, Louisville, Kentucky, USA
- American Heart Association Tobacco Regulation and Addiction Center, University of Louisville
| | - Jessica L Fetterman
- Vascular Biology Section, Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, Massachusetts, USA
- American Heart Association Tobacco Regulation and Addiction Center, Boston University
| | - Daniel W Riggs
- Division of Cardiovascular Medicine, University of Louisville School of Medicine, Louisville, Kentucky, USA
- American Heart Association Tobacco Regulation and Addiction Center, University of Louisville
| | - Timothy O'Toole
- Division of Cardiovascular Medicine, University of Louisville School of Medicine, Louisville, Kentucky, USA
- American Heart Association Tobacco Regulation and Addiction Center, University of Louisville
| | - Jessica L Nystoriak
- Division of Cardiovascular Medicine, University of Louisville School of Medicine, Louisville, Kentucky, USA
- American Heart Association Tobacco Regulation and Addiction Center, University of Louisville
| | - Monika Holbrook
- Vascular Biology Section, Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, Massachusetts, USA
- American Heart Association Tobacco Regulation and Addiction Center, Boston University
| | - Pawel Lorkiewicz
- Division of Cardiovascular Medicine, University of Louisville School of Medicine, Louisville, Kentucky, USA
- American Heart Association Tobacco Regulation and Addiction Center, University of Louisville
| | - Aruni Bhatnagar
- Division of Cardiovascular Medicine, University of Louisville School of Medicine, Louisville, Kentucky, USA
- American Heart Association Tobacco Regulation and Addiction Center, University of Louisville
| | - Andrew P DeFilippis
- Division of Cardiovascular Medicine, University of Louisville School of Medicine, Louisville, Kentucky, USA
- American Heart Association Tobacco Regulation and Addiction Center, University of Louisville
| | - Naomi M Hamburg
- Vascular Biology Section, Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, Massachusetts, USA
- American Heart Association Tobacco Regulation and Addiction Center, Boston University
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11
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Wiest EF, Walsh-Wilcox MT, Walker MK. Omega-3 Polyunsaturated Fatty Acids Protect Against Cigarette Smoke-Induced Oxidative Stress and Vascular Dysfunction. Toxicol Sci 2018; 156:300-310. [PMID: 28115642 DOI: 10.1093/toxsci/kfw255] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
In cigarette smokers endothelial dysfunction, measured by flow-mediated dilation (FMD), precedes cardiovascular disease (CVD) and can be improved by supplementation with n - 3 polyunsaturated fatty acids (PUFAs). We developed a mouse model of cigarette smoke (CS)-induced endothelial dysfunction that resembles impaired FMD observed in human cigarette smokers and investigated the mechanism by which n - 3 PUFAs mediate vasoprotection. We hypothesized that loss of nitric oxide (NO)-dependent vasodilation in CS-exposed mice would be prevented by dietary n - 3 PUFAs via a decrease in oxidative stress. C57BL/6 mice were fed a chow or n - 3 PUFA diet for 8 weeks and then exposed to mainstream CS or filtered air for 5 days, 2 h/day. Mesenteric arterioles were preconstricted with U46619 and dilated by stepwise increases in pressure (0-40 mmHg), resulting in increases in flow, ± inhibitor of NO production or antioxidant, Tempol. Markers of oxidative stress were measured in lung and heart. CS-exposed mice on a chow diet had impaired FMD, resulting from loss of NO-dependent dilation, compared with air exposed mice. Tempol restored FMD by normalizing NO-dependent dilation and increasing NO-independent dilation. CS-exposed mice on the n - 3 PUFA diet had normal FMD, resulting from a significant increase in NO-independent dilation, compared with CS-exposed mice on a chow diet. Furthermore, n - 3 PUFAs decreased two CS-induced markers of oxidative stress, 8-epiprostaglandin-F2α levels and heme oxygenase-1 mRNA, and significantly attenuated CS-induced cytochrome P4501A1 mRNA expression. These data demonstrate that dietary n - 3 PUFAs can protect against CS-induced vascular dysfunction via multiple mechanisms, including increasing NO-independent vasodilation and decreasing oxidative stress.
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Affiliation(s)
- Elani F Wiest
- Department of Pharmaceutical Sciences, University of New Mexico, Albuquerque, New Mexico 87131
| | - Mary T Walsh-Wilcox
- Department of Pharmaceutical Sciences, University of New Mexico, Albuquerque, New Mexico 87131
| | - Mary K Walker
- Department of Pharmaceutical Sciences, University of New Mexico, Albuquerque, New Mexico 87131
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12
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Abstract
Many features of the environment have been found to exert an important influence on cardiovascular disease (CVD) risk, progression, and severity. Changes in the environment because of migration to different geographic locations, modifications in lifestyle choices, and shifts in social policies and cultural practices alter CVD risk, even in the absence of genetic changes. Nevertheless, the cumulative impact of the environment on CVD risk has been difficult to assess and the mechanisms by which some environment factors influence CVD remain obscure. Human environments are complex, and their natural, social, and personal domains are highly variable because of diversity in human ecosystems, evolutionary histories, social structures, and individual choices. Accumulating evidence supports the notion that ecological features such as the diurnal cycles of light and day, sunlight exposure, seasons, and geographic characteristics of the natural environment such as altitude, latitude, and greenspaces are important determinants of cardiovascular health and CVD risk. In highly developed societies, the influence of the natural environment is moderated by the physical characteristics of the social environments such as the built environment and pollution, as well as by socioeconomic status and social networks. These attributes of the social environment shape lifestyle choices that significantly modify CVD risk. An understanding of how different domains of the environment, individually and collectively, affect CVD risk could lead to a better appraisal of CVD and aid in the development of new preventive and therapeutic strategies to limit the increasingly high global burden of heart disease and stroke.
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Affiliation(s)
- Aruni Bhatnagar
- From the Diabetes and Obesity Center and the Institute of Molecular Cardiology, University of Louisville, KY.
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13
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E-Cigarettes and Cardiovascular Disease Risk: Evaluation of Evidence, Policy Implications, and Recommendations. CURRENT CARDIOVASCULAR RISK REPORTS 2016. [DOI: 10.1007/s12170-016-0505-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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14
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Conklin DJ. Acute cardiopulmonary toxicity of inhaled aldehydes: role of TRPA1. Ann N Y Acad Sci 2016; 1374:59-67. [PMID: 27152448 DOI: 10.1111/nyas.13055] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2015] [Revised: 02/26/2016] [Accepted: 03/07/2016] [Indexed: 12/13/2022]
Abstract
Inhalation of high-level volatile aldehydes, as present in smoke from wildfires and in tobacco smoke, is associated with both acute and chronic cardiopulmonary morbidity and mortality, but the underlying mechanisms are unclear. The transient receptor potential ankyrin 1 (TRPA1) protein forms a cation channel (irritant receptor) that mediates tobacco smoke-induced airway and lung injury, yet the role of TRPA1 in the cardiovascular toxicity of aldehyde exposure is unclear. Physiologically, airway-located TRPA1 activation triggers an irritant response (e.g., coughing and "respiratory braking") that alters the rate and depth of breathing to reduce exposure. Acrolein (2-propenal), a volatile, unsaturated aldehyde, activates TRPA1. Acrolein was used as a chemical weapon in World War I and is present at high levels in wildfires and tobacco smoke. Acrolein is thought to contribute to pulmonary and cardiovascular injury caused by tobacco smoke exposure, although the role of TRPA1 in cardiovascular toxicity is unclear. This minireview addresses this gap in our knowledge by exploring literature and recent data indicating a connection between TRPA1 and cardiovascular as well as pulmonary injury due to inhaled aldehydes.
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Affiliation(s)
- Daniel J Conklin
- Diabetes and Obesity Center, Institute of Molecular Cardiology, Division of Cardiovascular Medicine, Department of Medicine, University of Louisville, Louisville, Kentucky
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15
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The biological effect of endogenous sulfur dioxide in the cardiovascular system. Eur J Pharmacol 2011; 670:1-6. [DOI: 10.1016/j.ejphar.2011.08.031] [Citation(s) in RCA: 97] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Revised: 08/14/2011] [Accepted: 08/27/2011] [Indexed: 11/21/2022]
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16
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Srivastava S, Sithu SD, Vladykovskaya E, Haberzettl P, Hoetker DJ, Siddiqui MA, Conklin DJ, D'Souza SE, Bhatnagar A. Oral exposure to acrolein exacerbates atherosclerosis in apoE-null mice. Atherosclerosis 2011; 215:301-8. [PMID: 21371710 DOI: 10.1016/j.atherosclerosis.2011.01.001] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2010] [Revised: 12/20/2010] [Accepted: 01/03/2011] [Indexed: 12/13/2022]
Abstract
BACKGROUND Acrolein is a dietary aldehyde that is present in high concentrations in alcoholic beverages and foods including cheese, donuts and coffee. It is also abundant in tobacco smoke, automobile exhaust and industrial waste and is generated in vivo during inflammation and oxidative stress. OBJECTIVES The goal of this study was to examine the effects of dietary acrolein on atherosclerosis. METHODS Eight-week-old male apoE-null mice were gavage-fed acrolein (2.5mg/kg/day) for 8 weeks. Atherosclerotic lesion formation and composition and plasma lipids and platelet factor 4 (PF4) levels were measured. Effects of acrolein and PF4 on endothelial cell function was measured in vitro. RESULTS Acrolein feeding increased the concentration of cholesterol in the plasma. NMR analysis of the lipoproteins showed that acrolein feeding increased the abundance of small and medium VLDL particles. Acrolein feeding also increased atherosclerotic lesion formation in the aortic valve and the aortic arch. Immunohistochemical analysis showed increased macrophage accumulation in the lesions of acrolein-fed mice. Plasma PF4 levels and accumulation of PF4 in atherosclerotic lesions was increased in the acrolein-fed mice. Incubation of endothelial cells with the plasma of acrolein-fed mice augmented transmigration of monocytic cells, which was abolished by anti-PF4 antibody treatment. CONCLUSIONS Dietary exposure to acrolein exacerbates atherosclerosis in apoE-null mice. Consumption of foods and beverages rich in unsaturated aldehydes such as acrolein may be a contributing factor to the progression of atherosclerotic lesions.
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Affiliation(s)
- Sanjay Srivastava
- Diabetes and Obesity Center, University of Louisville, Louisville, KY 40202, USA.
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17
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Restrepo-Angulo I, De Vizcaya-Ruiz A, Camacho J. Ion channels in toxicology. J Appl Toxicol 2010; 30:497-512. [DOI: 10.1002/jat.1556] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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18
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Sithu SD, Srivastava S, Siddiqui MA, Vladykovskaya E, Riggs DW, Conklin DJ, Haberzettl P, O'Toole TE, Bhatnagar A, D'Souza SE. Exposure to acrolein by inhalation causes platelet activation. Toxicol Appl Pharmacol 2010; 248:100-10. [PMID: 20678513 DOI: 10.1016/j.taap.2010.07.013] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2010] [Revised: 07/16/2010] [Accepted: 07/16/2010] [Indexed: 12/16/2022]
Abstract
Acrolein is a common air pollutant that is present in high concentrations in wood, cotton, and tobacco smoke, automobile exhaust and industrial waste and emissions. Exposure to acrolein containing environmental pollutants such as tobacco smoke and automobile exhaust has been linked to the activation of the coagulation and hemostasis pathways and thereby to the predisposition of thrombotic events in human. To examine the effects of acrolein on platelets, adult male C57Bl/6 mice were subjected acute (5ppm for 6h) or sub-chronic (1ppm, 6h/day for 4days) acrolein inhalation exposures. The acute exposure to acrolein did not cause pulmonary inflammation and oxidative stress, dyslipidemia or induce liver damage or muscle injury. Platelet GSH levels in acrolein-exposed mice were comparable to controls, but acrolein-exposure increased the abundance of protein-acrolein adducts in platelets. Platelets isolated from mice, exposed to both acute and sub-chronic acrolein levels, showed increased ADP-induced platelet aggregation. Exposure to acrolein also led to an increase in the indices of platelet activation such as the formation of platelet-leukocyte aggregates in the blood, plasma PF4 levels, and increased platelet-fibrinogen binding. The bleeding time was decreased in acrolein exposed mice. Plasma levels of PF4 were also increased in mice exposed to environmental tobacco smoke. Similar to inhalation exposure, acrolein feeding to mice also increased platelet activation and established a pro-thrombotic state in mice. Together, our data suggest that acrolein is an important contributing factor to the pro-thrombotic risk in human exposure to pollutants such as tobacco smoke or automobile exhaust, or through dietary consumption.
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Affiliation(s)
- Srinivas D Sithu
- Department of Physiology and Biophysics, University of Louisville, Louisville, KY 40202, USA
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19
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Haberzettl P, Vladykovskaya E, Srivastava S, Bhatnagar A. Role of endoplasmic reticulum stress in acrolein-induced endothelial activation. Toxicol Appl Pharmacol 2008; 234:14-24. [PMID: 18951912 DOI: 10.1016/j.taap.2008.09.019] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2008] [Revised: 09/09/2008] [Accepted: 09/11/2008] [Indexed: 11/15/2022]
Abstract
Acrolein is a ubiquitous environmental pollutant and an endogenous product of lipid peroxidation. It is also generated during the metabolism of several drugs and amino acids. In this study, we examined the effects of acrolein on endothelial cells. Treatment of human umbilical vein endothelial cells (HUVECs) with 2 to 10 microM acrolein led to an increase in the phosphorylation of eIF-2alpha within 10 to 30 min of exposure. This was followed by alternate splicing of XBP-1 mRNA and an increase in the expression of the endoplasmic reticulum (ER) chaperone genes Grp78 and Herp. Within 2-4 h of treatment, acrolein also increased the abundance and the nuclear transport of the transcription factors ATF3, AFT4, and CHOP. Acrolein-induced increase in ATF3 was prevented by treating the cells with the chemical chaperone - phenylbutyric acid (PBA). Treatment with acrolein increased phosphorylation of ERK1/2, p38, and JNK. The increase in JNK phosphorylation was prevented by PBA. Acrolein treatment led to activation and nuclear translocation of the transcription factor NF-kappaB and an increase in TNF-alpha, IL-6 and IL-8, but not MCP-1, mRNA. Increased expression of cytokine genes and NF-kappaB activation were not observed in cells treated with PBA. These findings suggest that exposure to acrolein induces ER stress and triggers the unfolded protein response and that NF-kappaB activation and stimulation of cytokine production by acrolein could be attributed, in part, to ER stress. Chemical chaperones of protein-folding may be useful in treating toxicological and pathological states associated with excessive acrolein exposure or production.
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Affiliation(s)
- Petra Haberzettl
- Institute of Molecular Cardiology, Department of Medicine, University of Louisville, Louisville, KY 40202, USA
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20
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Conklin DJ, Bhatnagar A, Cowley HR, Johnson GH, Wiechmann RJ, Sayre LM, Trent MB, Boor PJ. Acrolein generation stimulates hypercontraction in isolated human blood vessels. Toxicol Appl Pharmacol 2006; 217:277-88. [PMID: 17095030 PMCID: PMC3487162 DOI: 10.1016/j.taap.2006.09.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2006] [Revised: 08/16/2006] [Accepted: 09/22/2006] [Indexed: 10/24/2022]
Abstract
Increased risk of vasospasm, a spontaneous hyperconstriction, is associated with atherosclerosis, cigarette smoking, and hypertension-all conditions involving oxidative stress, lipid peroxidation, and inflammation. To test the role of the lipid peroxidation- and inflammation-derived aldehyde, acrolein, in human vasospasm, we developed an ex vivo model using human coronary artery bypass graft (CABG) blood vessels and a demonstrated acrolein precursor, allylamine. Allylamine induces hypercontraction in isolated rat coronary artery in a semicarbazide-sensitive amine oxidase activity (SSAO) dependent manner. Isolated human CABG blood vessels (internal mammary artery, radial artery, saphenous vein) were used to determine: (1) vessel responses and sensitivity to acrolein, allylamine, and H(2)O(2) exposure (1 microM-1 mM), (2) SSAO dependence of allylamine-induced effects using SSAO inhibitors (semicarbazide, 1 mM; MDL 72274-E, active isomer; MDL 72274-Z, inactive isomer; 100 microM), (3) the vasoactive effects of two other SSAO amine substrates, benzylamine and methylamine, and (4) the contribution of extracellular Ca(2+) to hypercontraction. Acrolein or allylamine but not H(2)O(2), benzylamine, or methylamine stimulated spontaneous and pharmacologically intractable hypercontraction in CABG blood vessels that was similar to clinical vasospasm. Allylamine-induced hypercontraction and blood vessel SSAO activity were abolished by pretreatment with semicarbazide or MDL 72274-E but not by MDL 72274-Z. Allylamine-induced hypercontraction also was significantly attenuated in Ca(2+)-free buffer. In isolated aorta of spontaneously hypertensive rat, allylamine-induced an SSAO-dependent contraction and enhanced norepinephrine sensitivity but not in Sprague-Dawley rat aorta. We conclude that acrolein generation in the blood vessel wall increases human susceptibility to vasospasm, an event that is enhanced in hypertension.
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Affiliation(s)
- D J Conklin
- Institute of Molecular Cardiology, Department of Medicine, University of Louisville, Louisville, KY 40202, USA.
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