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Borkar NA, Thompson MA, Bartman CM, Sathish V, Prakash YS, Pabelick CM. Nicotine affects mitochondrial structure and function in human airway smooth muscle cells. Am J Physiol Lung Cell Mol Physiol 2023; 325:L803-L818. [PMID: 37933473 PMCID: PMC11068407 DOI: 10.1152/ajplung.00158.2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 09/26/2023] [Accepted: 10/24/2023] [Indexed: 11/08/2023] Open
Abstract
Exposure to cigarette smoke and e-cigarettes, with nicotine as the active constituent, contributes to increased health risks associated with asthma. Nicotine exerts its functional activity via nicotinic acetylcholine receptors (nAChRs), and the alpha7 subtype (α7nAChR) has recently been shown to adversely affect airway dynamics. The mechanisms of α7nAChR action in airways, particularly in the context of airway smooth muscle (ASM), a key cell type in asthma, are still under investigation. Mitochondria have garnered increasing interest for their role in regulating airway tone and adaptations to cellular stress. Here mitochondrial dynamics such as fusion versus fission, and mitochondrial Ca2+ ([Ca2+]m), play an important role in mitochondrial homeostasis. There is currently no information on effects and mechanisms by which nicotine regulates mitochondrial structure and function in ASM in the context of asthma. We hypothesized that nicotine disrupts mitochondrial morphology, fission-fusion balance, and [Ca2+]m regulation, with altered mitochondrial respiration and bioenergetics in the context of asthmatic ASM. Using human ASM (hASM) cells from nonasthmatics, asthmatics, and smokers, we examined the effects of nicotine on mitochondrial dynamics and [Ca2+]m. Fluorescence [Ca2+]m imaging of hASM cells with rhod-2 showed robust responses to 10 μM nicotine, particularly in asthmatics and smokers. In both asthmatics and smokers, nicotine increased the expression of fission proteins while decreasing fusion proteins. Seahorse analysis showed blunted oxidative phosphorylation parameters in response to nicotine in these groups. α7nAChR siRNA blunted nicotine effects, rescuing [Ca2+]m, changes in mitochondrial structural proteins, and mitochondrial dysfunction. These data highlight mitochondria as a target of nicotine effects on ASM, where mitochondrial disruption and impaired buffering could permit downstream effects of nicotine in the context of asthma.NEW & NOTEWORTHY Asthma is a major healthcare burden, which is further exacerbated by smoking. Recognizing the smoking risk of asthma, understanding the effects of nicotine on asthmatic airways becomes critical. Surprisingly, the mechanisms of nicotine action, even in normal and especially asthmatic airways, are understudied. Accordingly, the goal of this research is to investigate how nicotine influences asthmatic airways in terms of mitochondrial structure and function, via the a7nAChR.
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Affiliation(s)
- Niyati A Borkar
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota, United States
| | - Michael A Thompson
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota, United States
| | - Colleen M Bartman
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota, United States
| | - Venkatachalem Sathish
- Department of Pharmaceutical Sciences, North Dakota State University, Fargo, North Dakota, United States
| | - Y S Prakash
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota, United States
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, United States
| | - Christina M Pabelick
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota, United States
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, United States
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Maiyo AK, Kibet JK, Kengara FO. A review of the characteristic properties of selected tobacco chemicals and their associated etiological risks. REVIEWS ON ENVIRONMENTAL HEALTH 2023; 38:479-491. [PMID: 35538694 DOI: 10.1515/reveh-2022-0013] [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: 01/19/2022] [Accepted: 04/21/2022] [Indexed: 06/14/2023]
Abstract
OBJECTIVES Despite the quantum of research findings on tobacco epidemic, a review on the formation characteristics of nicotine, aldehydes and phenols, and their associated etiological risks is still limited in literature. Accordingly, knowledge on the chemical properties and free radical formation during tobacco burning is an important subject towards unravelling the relationship between smoking behaviour and disease. This review investigates how scientific efforts have been advanced towards understanding the release of molecular products from the thermal degradation of tobacco, and harm reduction strategies among cigarette smokers in general. The mechanistic characteristics of nicotine and selected aldehydes are critically examined in this review. For the purpose of this work, articles published during the period 2004-2021 and archived in PubMed, Google Scholar, Medley, Cochrane, and Web of Science were used. The articles were selected based on the health impacts of cigarette smoking, tobacco burning kinetics, tobacco cessation and tobacco as a precursor for emerging diseases such as Covid-19. CONTENT The toxicity of cigarette smoke is directly correlated with its chemical composition derived from the pyrolysis of tobacco stem and leaves. Most of the harmful toxic substances are generated by pyrolysis during smoking and depends on pyrolysis conditions. Detailed studies have been conducted on the kinetics of nicotine by use of robust theoretical models in order to determine the rate constants of reactions in nicotine and those of nicotine dissociation via C-C and C-N scission, yielding pyridinyl and methyl radicals, respectively. Research has suggested that acetaldehyde enhances the effect of nicotine, which in turn reinforces addiction characteristics whereas acrolein and crotonaldehyde are ciliatoxic, and can inhibit lung clearance. On the other hand, phenol affects liver enzymes, lungs, kidneys, and the cardiovascular system while m-cresol attacks the nervous system. SUMMARY AND OUTLOOK The characteristics of chemical release during tobacco burning are very important in the tobacco industry and the cigarette smoking community. Understanding individual chemical formation from cigarette smoking will provide the necessary information needed to formulate sound tobacco reform policies from a chemical standpoint. Nonetheless, intense research is needed in this field in order to prescribe possible measures to deter cigarette smoking addiction and ameliorate the grave miseries bedevilling the tobacco smoking community.
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Affiliation(s)
- Alfayo K Maiyo
- Department of Chemistry and Biochemistry, Moi University, Eldoret, Kenya
- African Centre of Excellence in Phytochemicals, Textiles and Renewable Energy (ACE II-PTRE), Eldoret, Kenya
| | - Joshua K Kibet
- Department of Chemistry, Egerton University, Njoro, Kenya
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Qiu A, Xu H, Mao L, Xu B, Fu X, Cheng J, Zhao R, Cheng Z, Liu X, Xu J, Zhou Y, Dong Y, Tian T, Tian G, Chu M. A Novel apaQTL-SNP for the Modification of Non-Small-Cell Lung Cancer Susceptibility across Histological Subtypes. Cancers (Basel) 2022; 14:cancers14215309. [PMID: 36358727 PMCID: PMC9658938 DOI: 10.3390/cancers14215309] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/24/2022] [Accepted: 10/26/2022] [Indexed: 11/23/2022] Open
Abstract
Background: Alternative polyadenylation (APA) events may be modulated by single nucleotide polymorphisms (SNPs). Therefore, this study aims to evaluate the association between APA quantitative trait loci (apaQTLs)-related SNPs (apaQTL-SNPs) and non-small-cell lung cancer (NSCLC) risk. Methods: APA-related genes associated with NSCLC (LUAD and LUSC) were first identified, and the respective apaQTL-SNPs of those genes were selected. Then, a two-phase case-control study was performed to evaluate the association between candidate apaQTL-SNPs and NSCLC risk. Results: A total of 7 LUAD- and 21 LUSC-associated apaQTL-SNPs were selected. In the first phase, the apaQTL-SNP rs10138506 was significantly associated with LUAD risk (p < 0.05), whereas the other two apaQTL-SNPs (rs1130698 and rs1130719) were significantly associated with LUSC risk (p < 0.05). In the second phase, the variant G allele of rs10138506 was still significantly associated with an increased risk of LUAD (OR = 1.42, 95%CI = 1.02−1.98, p = 0.038). Functional annotation indicated that the variant G allele of rs10138506 was significantly associated with a higher PDUI value of CHURC1. Meanwhile, 3′RACE experiments verified the presence of two poly(A) sites (proximal and distal) in CHURC1, while qRT-PCR results indicated that different genotypes of rs1127968 which, in perfect LD with rs10138506, can mediate changes in the lengths of the 3′UTR of CHURC1 isoforms. Conclusion: The variant G allele of rs10138506 in CHURC1 was correlated with a longer 3′UTR of CHURC1 mRNA and an increased LUAD risk. Further studies should evaluate the interaction between rs10138506 and different 3′UTR lengths of CHURC1 that regulate LUAD development.
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Affiliation(s)
- Anni Qiu
- Department of Epidemiology, School of Public Health, Nantong University, Nantong 226019, China
| | - Huiwen Xu
- Department of Epidemiology, School of Public Health, Nantong University, Nantong 226019, China
| | - Liping Mao
- Department of Oncology, Affiliated Nantong Hospital of Shanghai University (The Sixth People’s Hospital of Nantong), Nantong 226001, China
| | - Buyun Xu
- Department of Epidemiology, School of Public Health, Nantong University, Nantong 226019, China
| | - Xiaoyu Fu
- Department of Epidemiology, School of Public Health, Nantong University, Nantong 226019, China
| | - Jingwen Cheng
- Department of Epidemiology, School of Public Health, Nantong University, Nantong 226019, China
| | - Rongrong Zhao
- Department of Oncology, Jiangdu People’s Hospital of Yangzhou, Yangzhou 225202, China
| | - Zhounan Cheng
- Department of Epidemiology, School of Public Health, Nantong University, Nantong 226019, China
| | - Xiaoxuan Liu
- Department of Epidemiology, School of Public Health, Nantong University, Nantong 226019, China
| | - Jingsheng Xu
- Department of Epidemiology, School of Public Health, Nantong University, Nantong 226019, China
| | - Yan Zhou
- Department of Epidemiology, School of Public Health, Nantong University, Nantong 226019, China
| | - Yang Dong
- Department of Epidemiology, School of Public Health, Nantong University, Nantong 226019, China
| | - Tian Tian
- Department of Epidemiology, School of Public Health, Nantong University, Nantong 226019, China
| | - Guangyu Tian
- Department of Oncology, Jiangdu People’s Hospital of Yangzhou, Yangzhou 225202, China
- Correspondence: (M.C.); (G.T.)
| | - Minjie Chu
- Department of Epidemiology, School of Public Health, Nantong University, Nantong 226019, China
- Correspondence: (M.C.); (G.T.)
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Paulin LM, Halenar MJ, Edwards KC, Lauten K, Stanton CA, Taylor K, Hatsukami D, Hyland A, MacKenzie T, Mahoney MC, Niaura R, Trinidad D, Blanco C, Compton WM, Gardner LD, Kimmel HL, Lauterstein D, Marshall D, Sargent JD. Association of tobacco product use with chronic obstructive pulmonary disease (COPD) prevalence and incidence in Waves 1 through 5 (2013-2019) of the Population Assessment of Tobacco and Health (PATH) Study. Respir Res 2022; 23:273. [PMID: 36183112 PMCID: PMC9526897 DOI: 10.1186/s12931-022-02197-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 09/22/2022] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND We examined the association of non-cigarette tobacco use on chronic obstructive pulmonary disease (COPD) risk in the Population Assessment of Tobacco and Health (PATH) Study. METHODS There were 13,752 participants ≥ 40 years with Wave 1 (W1) data for prevalence analyses, including 6945 adults without COPD for incidence analyses; W1-5 (2013-2019) data were analyzed. W1 tobacco use was modeled as 12 mutually-exclusive categories of past 30-day (P30D) single and polyuse, with two reference categories (current exclusive cigarette and never tobacco). Prevalence and incidence ratios of self-reported physician-diagnosed COPD were estimated using weighted multivariable Poisson regression. RESULTS W1 mean (SE) age was 58.1(0.1) years; mean cigarette pack-years was similar for all categories involving cigarettes and exclusive use of e-cigarettes (all > 20), greater than exclusive cigar users (< 10); and COPD prevalence was 7.7%. Compared to P30D cigarette use, never tobacco, former tobacco, and cigar use were associated with lower COPD prevalence (RR = 0.33, (95% confidence interval-CI) [0.26, 0.42]; RR = 0.57, CI [0.47, 0.70]; RR = 0.46, CI [0.28, 0.76], respectively); compared to never tobacco use, all categories except cigar and smokeless tobacco use were associated with higher COPD prevalence (RR former = 1.72, CI [1.33, 2.23]; RR cigarette = 3.00, CI [2.37, 3.80]; RR e-cigarette = 2.22, CI [1.44, 3.42]; RR cigarette + e-cigarette = 3.10, CI [2.39, 4.02]; RR polycombusted = 3.37, CI [2.44, 4.65]; RR polycombusted plus noncombusted = 2.75, CI]1.99, 3.81]). COPD incidence from W2-5 was 5.8%. Never and former tobacco users had lower COPD risk compared to current cigarette smokers (RR = 0.52, CI [0.35, 0.77]; RR = 0.47, CI [0.32, 0.70], respectively). Compared to never use, cigarette, smokeless, cigarette plus e-cigarette, and polycombusted tobacco use were associated with higher COPD incidence (RR = 1.92, CI [1.29, 2.86]; RR = 2.08, CI [1.07, 4.03]; RR = 1.99, CI [1.29, 3.07]; RR = 2.59, CI [1.60, 4.21], respectively); exclusive use of e-cigarettes was not (RR = 1.36, CI [0.55, 3.39]). CONCLUSIONS E-cigarettes and all use categories involving cigarettes were associated with higher COPD prevalence compared to never use, reflecting, in part, the high burden of cigarette exposure in these groups. Cigarette-but not exclusive e-cigarette-use was also strongly associated with higher COPD incidence. Compared to cigarette use, only quitting tobacco was protective against COPD development.
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Affiliation(s)
- Laura M Paulin
- Geisel School of Medicine at Dartmouth, The C. Everett Koop Institute at Dartmouth, Hanover, NH, USA.
| | - Michael J Halenar
- Behavioral Health and Health Policy Practice, Westat, Rockville, MD, USA
| | - Kathryn C Edwards
- Behavioral Health and Health Policy Practice, Westat, Rockville, MD, USA
| | - Kristin Lauten
- Behavioral Health and Health Policy Practice, Westat, Rockville, MD, USA
| | | | - Kristie Taylor
- Behavioral Health and Health Policy Practice, Westat, Rockville, MD, USA
| | - Dorothy Hatsukami
- Department of Psychiatry and Behavioral Sciences, University of Minnesota, Minneapolis, MN, USA
| | - Andrew Hyland
- Department of Health Behavior, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Todd MacKenzie
- Geisel School of Medicine at Dartmouth, The C. Everett Koop Institute at Dartmouth, Hanover, NH, USA
| | - Martin C Mahoney
- Department of Health Behavior, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Ray Niaura
- New York University School of Global Public Health, New York, NY, 10012, USA
| | - Dennis Trinidad
- University of California at San Diego, La Jolla, CA, 92037, USA
| | - Carlos Blanco
- National Institute on Drug Abuse, National Institutes of Health, Bethesda, MD, USA
| | - Wilson M Compton
- National Institute on Drug Abuse, National Institutes of Health, Bethesda, MD, USA
| | - Lisa D Gardner
- Center for Tobacco Products, Food and Drug Administration, Silver Spring, MD, USA
| | - Heather L Kimmel
- National Institute on Drug Abuse, National Institutes of Health, Bethesda, MD, USA
| | - Dana Lauterstein
- Center for Tobacco Products, Food and Drug Administration, Silver Spring, MD, USA
| | - Daniela Marshall
- National Institute on Drug Abuse, National Institutes of Health, Bethesda, MD, USA
- Kelly Government Solutions, Rockville, MD, USA
| | - James D Sargent
- Geisel School of Medicine at Dartmouth, The C. Everett Koop Institute at Dartmouth, Hanover, NH, USA
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Wang X, Qian ZM, Zhang Z, Cai M, Chen L, Wu Y, Li H, Liu E, McMillin SE, Lin H. Population attributable fraction of lung cancer due to genetic variants, modifiable risk factors, and their interactions: a nationwide prospective cohort study. CHEMOSPHERE 2022; 301:134773. [PMID: 35500626 DOI: 10.1016/j.chemosphere.2022.134773] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 04/01/2022] [Accepted: 04/26/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Genetic variants and modifiable risk factors (including environmental exposure and lifestyle) greatly contribute to the development of lung cancer. The population attributable fraction (PAF) of these risk factors, especially their interactive effects, has not been well quantified. METHODS A total of 398,577 participants were included in this analysis. There were 2504 incident lung cancer cases identified over an average 10.4-year follow-up. We applied Cox proportional hazards models to examine the associations between risk factors and incident lung cancer. We further developed a polygenic risk score and evaluated whether environmental factors modified the effect of genetic risk on incident lung cancer. Furthermore, we calculated the PAF for each risk factor, as well as their gene-environment additive interaction, and then combined them to create a weighted PAF that takes into consideration participants with overlapping risk factors. RESULTS Our analysis showed that smoking was the leading risk factor for lung cancer with a PAF of 63.73%. We observed additive interactions between smoking, PM2.5, NOx, and genetic risk, with PAFs of 17.85% (smoking-high genetic risk interaction), 10.79% (smoking-intermediate genetic risk interaction), 5.30% (NOx-high genetic risk interaction), 6.55% (PM2.5-high genetic risk interaction), and 4.99% (PM2.5-intermediate genetic risk interaction). We estimated that 73.46% of lung cancer cases could be attributable to potentially modifiable risk factors after adjusting for the correlation between them. CONCLUSION High genetic risk and several modifiable factors may increase the risk of incident lung cancer. Participants with a high genetic risk may be more vulnerable to developing lung cancer if exposed to smoking and/or high air pollution. Our findings provide evidence that the majority of incident lung cancer cases could be prevented by eliminating modifiable risk factors.
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Affiliation(s)
- Xiaojie Wang
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Zhengmin Min Qian
- Department of Epidemiology and Biostatistics, College for Public Health & Social Justice, Saint Louis University, Saint Louis, USA
| | - Zilong Zhang
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Miao Cai
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Lan Chen
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Yinglin Wu
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Haitao Li
- Department of Social Medicine and Health Service Management, Shenzhen University General Hospital, Shenzhen, China
| | - Echu Liu
- Department of Health Management and Policy, College for Public Health and Social Justice, Saint Louis University, Saint Louis, USA
| | - Stephen Edward McMillin
- School of Social Work, College for Public Health and Social Justice, Saint Louis University, Saint Louis, USA
| | - Hualiang Lin
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China.
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Bogomolov A, Zaikov S, Gogunska I, Tkhorovskyi M. HEATED TOBACCO PRODUCTS: WE STILL NEED TO KNOW A BIT MORE. WIADOMOSCI LEKARSKIE (WARSAW, POLAND : 1960) 2022; 75:1771-1775. [PMID: 35962696 DOI: 10.36740/wlek202207129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
OBJECTIVE The aim: This research aims to analyze the challenges we came across due to the rapid spread among the population (including young people) of tobacco heating devices. PATIENTS AND METHODS Materials and methods: Analysis of 20 literature sources containing information about tobacco heating systems was performed. The search for literary sources was carried out in two main scientific databases: Scopus and PubMed. The review included original articles, research, and official recommendations from medical associations. CONCLUSION Conclusions: Tobacco heaters reduce harmful substances in the inhaled air compared to conventional tobacco cigarettes, but these new devices provide effective nicotine absorption, which prolongs a person's nicotine dependence and prevents smoking cessation. The main problem we face due to the rapid spreading of these devices - potentially tobacco heating systems can pose health risks and further research on such risks, especially long - term, are needed. Tobacco heating devices, regardless of their manufacturer and design, should be subject to restrictions similar to traditional cigarettes.
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Affiliation(s)
| | - Sergii Zaikov
- SHUPYK NATIONAL MEDICAL ACADEMY OF POSTGRADUATE EDUCATION, KYIV, UKRAINE
| | - Inna Gogunska
- O. S. KOLOMIYCHENKO INSTITUTE OF OTOLARYNGOLOGY OF NATIONAL ACADEMY OF MEDICAL SCIENCES OF UKRAINE, KYIV, UKRAINE
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Miura SST, Bernat D, Reid KM, Macdonald M, Porter L, Choi K. Current Tobacco Use Trends and Harm Perceptions Among High School Students by Asthma Status and Sex, 2012-2018. THE JOURNAL OF SCHOOL HEALTH 2022; 92:521-529. [PMID: 35266149 PMCID: PMC9869457 DOI: 10.1111/josh.13180] [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: 04/16/2021] [Revised: 10/30/2021] [Accepted: 11/04/2021] [Indexed: 06/03/2023]
Abstract
BACKGROUND Tobacco use is known to worsen asthma management. No studies have investigated how trends in youth tobacco use and related harm perceptions vary by asthma status and sex. This study examined these trends among Florida high school students during 2012-2018. METHODS Data from the 2012, 2014, 2016, and 2018 Florida Youth Tobacco Survey were analyzed. Public high school students (grades 9-12) with known asthma status were included along with their current tobacco product use, tobacco product harm perceptions, and demographics. Weighted multivariable logistic regression was used to assess trends in tobacco product use and harm perceptions and test differences by asthma status and sex. RESULTS From 2012 to 2018, high school students with asthma had the slowest decline in cigarette and cigar use prevalence (asthma status-time interaction p = .01) compared to those with no asthma. Cigarette and cigar smoking were perceived as less harmful over time, except among females with asthma who smoked cigarettes (p < .05). CONCLUSIONS Those with asthma showed a slower decline and were more likely to smoke cigarettes. Results indicate that further public health efforts are needed to address tobacco use among high school students with asthma.
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Affiliation(s)
- Sarah Selica T Miura
- Department of Epidemiology, Milken Institute School of Public Health, George Washington University, 950 New Hampshire Ave, NW, 5th Floor, Washington, DC, 20052, USA
| | - Debra Bernat
- Department of Epidemiology, Milken Institute School of Public Health, George Washington University, 950 New Hampshire Ave, NW, 5th Floor, Washington, DC, 20052., USA
| | - Keshia M Reid
- Public Health Research Unit, Division of Community Health Promotion, Florida Department of Health, 4052 Bald Cypress Way, Bin A24, Tallahassee, FL, 32399-1712, USA
| | - Megan Macdonald
- Division of Children's Medical Services, Florida Department of Health, 4052 Bald Cypress, Bin A06, Tallahassee, FL, 32399-1712, USA
| | - Lauren Porter
- Public Health Research, Division of Community Health Promotion, Florida Department of Health, 4052 Bald Cypress Way, Bin A24, Tallahassee, FL, 32399-1712, USA
| | - Kelvin Choi
- Division of Intramural Research, National Institute on Minority Health and Health Disparities, 9000 Rockville Pike, Building 3 Room 5W05, Bethesda, MD, 20892, USA
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Jia Y, Zhang Q, Liu Z, Pan P, Jia Y, Zhu P, Jiao Y, Kang G, Ma X. The role of α5-nicotinic acetylcholine receptor/NLRP3 signaling pathway in lung adenocarcinoma cell proliferation and migration. Toxicology 2022; 469:153120. [DOI: 10.1016/j.tox.2022.153120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 02/02/2022] [Accepted: 02/03/2022] [Indexed: 12/16/2022]
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Kang HS, Kim JY, Park HJ, Jung JW, Choi HS, Park JS, Park JH, Lee SH, Chun EM, Cho Y, Rhee E, Hwang BS. E-cigarette-associated Severe Pneumonia in Korea Using Data Linkage between the Korea National Health and Nutrition Examination Survey (KNHANES, 2013-2019) and the National Health Insurance Service (NHIS) Claims Database. J Korean Med Sci 2021; 36:e331. [PMID: 34904409 PMCID: PMC8668496 DOI: 10.3346/jkms.2021.36.e331] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 10/20/2021] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND This study aimed to investigate the association between e-cigarette (EC) use and development of acute severe pneumonia in the Korean population using a national database. METHODS We conducted a retrospective analysis using linkage of data between the Korean National Health and Nutrition Examination Survey (KNHANES) and the National Health Insurance Service (NHIS) administrative claims database. The primary endpoint of this study was development of severe pneumonia requiring hospital admission according to EC use during the study period. The secondary endpoints were in-hospital mortality, intensive care unit (ICU) admission, ventilator care, and days of hospital stay. RESULTS The final analysis included 28,950 individuals, of which 578 (2.0%) were EC users. EC users were younger and more often male than non-EC users. The EC users showed higher level of education and household income and had fewer comorbidities. Severe pneumonia was noted in 37 of 28,372 non-EC users (0.13%), but there were no occurrences of severe pneumonia in EC users. The incidence of pneumonia occurrence was not different between the two groups (P = 1.000). CONCLUSIONS Since e-cigarette or vaping use-associated lung injury (EVALI) is most likely included in acute severe pneumonia occurring within 3 months of EC use, it is considered that there might be no EVALI patients in Korea during the investigation period. A large-scale, prospective study is necessary to evaluate the association between EC use and acute lung injury.
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Affiliation(s)
- Hye Seon Kang
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jae Yeol Kim
- Department of Internal Medicine, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Hye Jung Park
- Department of Internal Medicine, College of Medicine, Yonsei University, Seoul, Korea
| | - Jae-Woo Jung
- Department of Internal Medicine, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Hye Sook Choi
- Department of Internal Medicine, Kyung Hee University Medical Center, Seoul, Korea
| | - Jong Sook Park
- Department of Internal Medicine, College of Medicine, Soonchunhyang University, Bucheon, Korea
| | - Joo Hun Park
- Department of Pulmonary and Critical Care Medicine, Ajou University School of Medicine, Suwon, Korea
| | - Sang Haak Lee
- Department of Internal Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Eun Mi Chun
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, Korea
| | - Yoojung Cho
- Department of Applied Statistics, Chung-Ang University, Seoul, Korea
| | - Eunhee Rhee
- Department of Applied Statistics, Chung-Ang University, Seoul, Korea
| | - Beom Seuk Hwang
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, Korea.
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Ancy RJ, Shenoy RP, Jodalli PS, Sonde L, Mohammed IP. Comparative Evaluation of Salivary Sialic Acid Levels Among Beedi Rollers and Tobacco Users in Mangalore, South India. Cureus 2021; 13:e16651. [PMID: 34462684 PMCID: PMC8387602 DOI: 10.7759/cureus.16651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/26/2021] [Indexed: 11/25/2022] Open
Abstract
Introduction: According to World Health Organization, the global cancer burden is estimated to have risen to 18.1 million new cases and 9.6 million deaths in 2018. Tobacco use is a leading cause of cancer and of death from cancer. Beedis are the most popular smoking form of tobacco in India. Thirty-four percent of the tobacco produced in India is used for making beedis. The beedi sector is agroforestry-based and the second largest industry in India with approximately 4.4 million full-time beedi workers in India. Toxic constituents present in tobacco are released into the ambient air during the processing of beedis. Methods: A descriptive cross-sectional study was conducted to assess and compare salivary sialic acid levels among beedi rollers, tobacco smokers, smokeless tobacco users and individuals with no tobacco exposure. The study sample comprised of 140 individuals who were 30 to 60 years old, who attended dental screening and treatment camps in rural and urban areas in Mangalore, conducted by the Department of Public Health Dentistry, Yenepoya Dental College and patients who visited the Department of Oral Medicine and Radiology of Yenepoya Dental College. Saliva was collected by passive drool method into a sterile container. Biochemical analysis of salivary sialic acid was done using the acidic ninhydrin method. Continuous variables are expressed in terms of mean and standard deviation. Categorical variables are expressed in terms of frequencies and percentages. To compare salivary sialic acid levels between the groups ANOVA was used. The Chi-square test was used to compare categorical variables between the groups. Results: A total of 140 participants, 35 beedi rollers, 35 smokers, 35 smokeless tobacco users and 35 individuals with no tobacco exposure participated in the study. Among the 140 participants, 90 participants were males and 50 participants were females. There was a statistically significant difference in the mean salivary sialic acid level between the different groups (p<0.001) with smokeless tobacco users having the highest (10.60 mg/dL) mean salivary sialic acid level. It was found that the mean salivary sialic acid level reduced as the age progressed, even though there was no statistically significant difference. There was a statistically significant difference in the mean salivary sialic acid level between the different groups (p=0.010) with participants with 11 to 20 years of exposure to tobacco having the highest (8.67 mg/dL) mean salivary sialic acid level and participants with no tobacco exposure having least (3.06 mg/dL) mean salivary sialic acid level. Conclusion: The salivary sialic acid level was more in beedi rollers than individuals with no tobacco exposure, even though the difference was not statistically significant. The results showed elevated levels of salivary sialic acid in smokeless tobacco users followed by tobacco smokers. This may be an indication that smokeless tobacco use has harmful effects similar to or more than tobacco smoking since salivary sialic acid levels in smokeless tobacco users were higher than those in smokers.
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Affiliation(s)
- R J Ancy
- Public Health Dentistry, Century International Institute of Dental Science and Research Centre, Kasaragod, IND
| | - Rekha P Shenoy
- Public Health Dentistry, Yenepoya Dental College and Hospital, Mangalore, IND
| | - Praveen S Jodalli
- Public Health Dentistry, Yenepoya Dental College and Hospital, Mangalore, IND
| | - Laxminarayan Sonde
- Public Health Dentistry, Yenepoya Dental College and Hospital, Mangalore, IND
| | - Imran P Mohammed
- Public Health Dentistry, Yenepoya Dental College and Hospital, Mangalore, IND
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11
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Kotoulas SC, Katsaounou P, Riha R, Grigoriou I, Papakosta D, Spyratos D, Porpodis K, Domvri K, Pataka A. Electronic Cigarettes and Asthma: What Do We Know So Far? J Pers Med 2021; 11:jpm11080723. [PMID: 34442368 PMCID: PMC8399607 DOI: 10.3390/jpm11080723] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 07/19/2021] [Accepted: 07/23/2021] [Indexed: 12/20/2022] Open
Abstract
Electronic cigarettes (EC) are a novel product, marketed as an alternative to tobacco cigarette. Its effects on human health have not been investigated widely yet, especially in specific populations such as patients with asthma. With this review, we use the existing literature in order to answer four crucial questions concerning: (1) ECs' role in the pathogenesis of asthma; (2) ECs' effects on lung function and airway inflammation in patients with asthma; (3) ECs' effects on asthma clinical characteristics in asthmatics who use it regularly; and (4) ECs' effectiveness as a smoking cessation tool in these patients. Evidence suggests that many EC compounds might contribute to the pathogenesis of asthma. Lung function seems to deteriorate by the use of EC in this population, while airway inflammation alters, with the aggravation of T-helper-type-2 (Th2) inflammation being the most prominent but not the exclusive effect. EC also seems to worsen asthma symptoms and the rate and severity of exacerbations in asthmatics who are current vapers, whilst evidence suggests that its effectiveness as a smoking cessation tool might be limited. Asthmatic patients should avoid using EC.
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Affiliation(s)
- Serafeim-Chrysovalantis Kotoulas
- Clinic of Respiratory Failure, General Hospital of Thessaloniki Georgios Papanikolaou, Aristotle University of Thessaloniki, Leoforos Papanikolaou, 57010 Thessaloniki, Greece; (I.G.); (A.P.)
- Correspondence: ; Tel.: +30-6977-705450
| | - Paraskevi Katsaounou
- 1st ICU “Evangelismos Hospital”, School of Medicine, National and Kapodistrian University of Athens, Ypsilantou 45-47, 10676 Athens, Greece;
| | - Renata Riha
- Sleep Research Unit, Department of Sleep Medicine, The University of Edinburgh, Royal Infirmary of Edinburgh, 51 Little France Crescent, Edinburgh EH16 4SA, UK;
| | - Ioanna Grigoriou
- Clinic of Respiratory Failure, General Hospital of Thessaloniki Georgios Papanikolaou, Aristotle University of Thessaloniki, Leoforos Papanikolaou, 57010 Thessaloniki, Greece; (I.G.); (A.P.)
| | - Despoina Papakosta
- Department of Pulmonary Medicine, General Hospital of Thessaloniki “Georgios Papanikolaou”, Aristotle University of Thessaloniki, Leoforos Papanikolaou, 57010 Thessaloniki, Greece; (D.P.); (D.S.); (K.P.); (K.D.)
| | - Dionysios Spyratos
- Department of Pulmonary Medicine, General Hospital of Thessaloniki “Georgios Papanikolaou”, Aristotle University of Thessaloniki, Leoforos Papanikolaou, 57010 Thessaloniki, Greece; (D.P.); (D.S.); (K.P.); (K.D.)
| | - Konstantinos Porpodis
- Department of Pulmonary Medicine, General Hospital of Thessaloniki “Georgios Papanikolaou”, Aristotle University of Thessaloniki, Leoforos Papanikolaou, 57010 Thessaloniki, Greece; (D.P.); (D.S.); (K.P.); (K.D.)
| | - Kalliopi Domvri
- Department of Pulmonary Medicine, General Hospital of Thessaloniki “Georgios Papanikolaou”, Aristotle University of Thessaloniki, Leoforos Papanikolaou, 57010 Thessaloniki, Greece; (D.P.); (D.S.); (K.P.); (K.D.)
| | - Athanasia Pataka
- Clinic of Respiratory Failure, General Hospital of Thessaloniki Georgios Papanikolaou, Aristotle University of Thessaloniki, Leoforos Papanikolaou, 57010 Thessaloniki, Greece; (I.G.); (A.P.)
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12
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Borkar NA, Roos B, Prakash YS, Sathish V, Pabelick CM. Nicotinic α7 acetylcholine receptor (α7nAChR) in human airway smooth muscle. Arch Biochem Biophys 2021; 706:108897. [PMID: 34004182 DOI: 10.1016/j.abb.2021.108897] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 04/25/2021] [Accepted: 04/26/2021] [Indexed: 12/31/2022]
Abstract
Diseases such as asthma are exacerbated by inflammation, cigarette smoke and even nicotine delivery devices such as e-cigarettes. However, there is currently little information on how nicotine affects airways, particularly in humans, and changes in the context of inflammation or asthma. Here, a longstanding assumption is that airway smooth muscle (ASM) that is key to bronchoconstriction has muscarinic receptors while nicotinic receptors (nAChRs) are only on airway neurons. In this study, we tested the hypothesis that human ASM expresses α7nAChR and explored its profile in inflammation and asthma using ASM of non-asthmatics vs. mild-moderate asthmatics. mRNA and western analysis showed the α7 subunit is most expressed in ASM cells and further increased in asthmatics and smokers, or by exposure to nicotine, cigarette smoke or pro-inflammatory cytokines TNFα and IL-13. In these effects, signaling pathways relevant to asthma such as NFκB, AP-1 and CREB are involved. These novel data demonstrate the expression of α7nAChR in human ASM and suggest their potential role in asthma pathophysiology in the context of nicotine exposure.
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Affiliation(s)
- Niyati A Borkar
- Department of Pharmaceutical Sciences, North Dakota State University, Fargo, ND, USA
| | - Benjamin Roos
- Department of Anesthesiology and Perioperative Medicine, USA
| | - Y S Prakash
- Department of Anesthesiology and Perioperative Medicine, USA; Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
| | - Venkatachalem Sathish
- Department of Pharmaceutical Sciences, North Dakota State University, Fargo, ND, USA
| | - Christina M Pabelick
- Department of Anesthesiology and Perioperative Medicine, USA; Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA.
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13
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Hung BL, Chen LJ, Chen YY, Ou JB, Fang SH. Nicotine supplementation enhances simulated game performance of archery athletes. J Int Soc Sports Nutr 2021; 18:16. [PMID: 33602279 PMCID: PMC7890628 DOI: 10.1186/s12970-021-00413-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 02/09/2021] [Indexed: 12/27/2022] Open
Abstract
Background Nicotine is beneficial to mood, arousal and cognition in humans. Due to the importance of cognitive functioning for archery athletes, we investigated the effects of nicotine supplementation on the cognitive abilities, heart rate variability (HRV), and sport performance of professional archers. Methods Eleven college archers were recruited and given 2 mg of nicotine supplementation (NIC group) and placebo (PLA group) in a crossover design. Results The results showed that at 30 min after the intake of nicotine gum, the “correct rejection” time in the NIC group was significantly lower than that of the PLA group (7.29 ± 0.87 vs. 8.23 ± 0.98 msec, p < 0.05). In addition, the NIC group completed the grooved pegboard test in a shorter time than the PLA group (48.76 ± 3.18 vs. 53.41 ± 4.05 s, p < 0.05), whereas motor reaction times were not different between the two groups. Saliva α-amylase activity was significantly lower after nicotine supplementation (p < 0.01) but increased immediately after the archery test in the NIC group (p < 0.05). In addition, nicotine supplementation significantly decreased HRV and increased the archery score (290.58 ± 10.09 vs. 298.05 ± 8.56, p < 0.01). Conclusions Nicotine enhances the performance of archery athletes by increasing cognitive function and stimulating the sympathetic adrenergic system.
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Affiliation(s)
- Bao-Lien Hung
- Department of Sports Medicine, China Medical University, Taichung, 40402, Taiwan
| | - Li-Jung Chen
- Department of Exercise Health Science, National Taiwan University of Sport, Taichung, 40404, Taiwan
| | - Yi-Ying Chen
- Institute of Athletics, National Taiwan University of Sport, No. 16, Section 1, Shuang-Shih Road, Taichung, 40404, Taiwan
| | - Jhih-Bang Ou
- Institute of Athletics, National Taiwan University of Sport, No. 16, Section 1, Shuang-Shih Road, Taichung, 40404, Taiwan
| | - Shih-Hua Fang
- Institute of Athletics, National Taiwan University of Sport, No. 16, Section 1, Shuang-Shih Road, Taichung, 40404, Taiwan.
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14
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Affiliation(s)
- Claudio Nardiello
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
- Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center (UGMLC), member of the German Center for Lung Research (DZL), Giessen, Germany
| | - Rory E Morty
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
- Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center (UGMLC), member of the German Center for Lung Research (DZL), Giessen, Germany
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15
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Morty RE. World health days in May 2020: pulmonary hypertension; asthma; and tobacco-, smoking-, and vaping-related disease in focus. Am J Physiol Lung Cell Mol Physiol 2020; 318:L988-L991. [PMID: 32233790 DOI: 10.1152/ajplung.00115.2020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- Rory E Morty
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center (UGMLC), member of the German Center for Lung Research (DZL), Giessen, Germany
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