1
|
Velayutham M, Mills A, Khramtsov VV, Olfert IM. An electron paramagnetic resonance time-course study of oxidative stress in the plasma of electronic cigarette exposed rats. Exp Physiol 2024. [PMID: 39090831 DOI: 10.1113/ep092064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Accepted: 07/09/2024] [Indexed: 08/04/2024]
Abstract
The long-term consequences of electronic cigarette (Ecig) use in humans are not yet known, but it is known that Ecig aerosols contain many toxic compounds of concern. We have recently shown that Ecig exposure impairs middle cerebral artery (MCA) endothelial function and that it takes 3 days for MCA reactivity to return to normal. However, the sources contributing to impairment of the endothelium were not investigated. We hypothesized that the increased levels of oxidative stress markers in the blood are correlated with impaired MCA reactivity. We used electron paramagnetic resonance (EPR) spectroscopy to examine plasma from 4-month-old male Sprague-Dawley rats that were exposed to either air (n = 5) or 1 h Ecig exposure, after which blood samples were collected at varying times after exposure (i.e., 1-4, 24, 48 and 72 h postexposure, n = 4 or 5 in each time group). The EPR analyses were performed using the redox-sensitive hydroxylamine spin probe 1-hydroxy-3-carboxymethyl-2,2,5,5-tetramethyl-pyrrolidine (CMH) to measure the level of reactive oxidant species in the plasma samples. We found that EPR signal intensity from the CM• radical was significantly increased in plasma at 1-4, 24 and 48 h (P < 0.05, respectively) and returned to control (air) levels by 72 h. When evaluating the EPR results with MCA reactivity, we found a significant negative correlation (Pearson's P = 0.0027). These data indicate that impaired cerebrovascular reactivity resulting from vaping is associated with the oxidative stress level (measured by EPR from plasma) and indicate that a single 1 h vaping session can negatively influence vascular health for up to 3 days after vaping. HIGHLIGHTS: What is the central question of this study? Does the time course of oxidative stress triggered by electronic cigarette exposure follow the cerebral vascular dysfunction? What is the main finding and its importance? Electron paramagnetic resonance analysis shows that the oxidative stress induced after a single 1 h exposure to electronic cigarette aerosol takes ≤72 h to return to normal, which mirrors the time course for vascular dysfunction in the middle cerebral artery that we have reported previously.
Collapse
Affiliation(s)
- Murugesan Velayutham
- In vivo Multifunctional Magnetic Resonance Center, West Virginia University School of Medicine, Morgantown, West Virginia, USA
- Center for Inhalation Toxicology, West Virginia University School of Medicine, Morgantown, West Virginia, USA
- Department of Biochemistry and Molecular Medicine, West Virginia University School of Medicine, Morgantown, West Virginia, USA
| | - Amber Mills
- Department of Physiology, Pharmacology & Toxicology, West Virginia University School of Medicine, Morgantown, West Virginia, USA
| | - Valery V Khramtsov
- In vivo Multifunctional Magnetic Resonance Center, West Virginia University School of Medicine, Morgantown, West Virginia, USA
- Department of Biochemistry and Molecular Medicine, West Virginia University School of Medicine, Morgantown, West Virginia, USA
| | - I Mark Olfert
- Center for Inhalation Toxicology, West Virginia University School of Medicine, Morgantown, West Virginia, USA
- Department of Physiology, Pharmacology & Toxicology, West Virginia University School of Medicine, Morgantown, West Virginia, USA
- Department of Human Performance, Division of Exercise Physiology, West Virginia University School of Medicine, Morgantown, West Virginia, USA
| |
Collapse
|
2
|
Cordery S, Thompson K, Stevenson M, Simms L, Chapman F, Grandolfo E, Malt L, Weaver S, Fearon IM, Nahde T. The Product Science of Electrically Heated Tobacco Products: An Updated Narrative Review of the Scientific Literature. Cureus 2024; 16:e61223. [PMID: 38939262 PMCID: PMC11209752 DOI: 10.7759/cureus.61223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/28/2024] [Indexed: 06/29/2024] Open
Abstract
Heated tobacco products represent a novel category of tobacco products in which a tobacco consumable is heated to a temperature that releases nicotine from the tobacco leaf but not to a temperature sufficient to cause combustion. Heated tobacco products may therefore have the potential to be a less harmful alternative for adult smokers who would otherwise continue to smoke cigarettes, as their use should result in exposure to substantially fewer and lower levels of toxicants. This update represents a two-year extension to our previous narrative review, which covered peer-reviewed journal articles published up to August 31, 2021. The scientific evidence published between 2021 and 2023 continues to indicate that aerosols produced from heated tobacco products contain fewer and substantially lower levels of harmful and potentially harmful constituents and that these observed reductions consistently translate to reduced biological effects in both in vitro and in vivo toxicological studies. Biomarker and clinical data from studies in which product use is controlled within a clinical setting continue to suggest changes in levels of biomarkers of exposure, biomarkers of potential harm, and clinical endpoints indicating the potential for reduced harm with switching to exclusive use of heated tobacco products in adult smokers. Overall, the available peer-reviewed scientific evidence continues to indicate that heated tobacco products offer promise as a potentially less harmful alternative to cigarettes, and as such, the conclusions of our original narrative review remain valid.
Collapse
Affiliation(s)
- Sarah Cordery
- Group Science and Regulatory Affairs, Imperial Brands Plc., Bristol, GBR
| | - Keith Thompson
- Independent Scientific Consultant, Elucid8 Holdings Ltd., Coleraine, GBR
| | - Matthew Stevenson
- Group Science and Regulatory Affairs, Imperial Brands Plc., Bristol, GBR
| | - Liam Simms
- Group Science and Regulatory Affairs, Imperial Brands Plc., Bristol, GBR
| | - Fiona Chapman
- Group Science and Regulatory Affairs, Imperial Brands Plc., Bristol, GBR
| | - Erika Grandolfo
- Group Science and Regulatory Affairs, Imperial Brands Plc., Bristol, GBR
| | - Layla Malt
- Group Science and Regulatory Affairs, Imperial Brands Plc., Bristol, GBR
| | - Sarah Weaver
- Group Science and Regulatory Affairs, Imperial Brands Plc., Bristol, GBR
| | - Ian M Fearon
- Scientific Research, whatIF? Consulting Ltd., Harwell, GBR
| | - Thomas Nahde
- Group Science and Regulatory Affairs, Imperial Brands Reemtsma, Hamburg, DEU
| |
Collapse
|
3
|
Tuttolomondo D, Niccoli G, Martini C, D’Ascenzo F, De Filippo O, Nicolini F, Formica F, Carino D, Gurgoglione FL, Denegri A, Magnani G, Vignali L, De Filippo M, Sverzellati N, Ticinesi A, Bergamaschi L, Pizzi C, Gherbesi E, Suma S, Gaibazzi N. Cardiovascular Disease from Pathophysiology to Risk Estimation: Is Inflammation Estimated through Perivascular Attenuation on Computed Tomography the Key? Life (Basel) 2024; 14:457. [PMID: 38672728 PMCID: PMC11051374 DOI: 10.3390/life14040457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 03/19/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024] Open
Abstract
(1) Background: Systemic inflammation stands as a well-established risk factor for ischemic cardiovascular disease, as well as a contributing factor in the development of cardiac arrhythmias, notably atrial fibrillation. Furthermore, scientific studies have brought to light the pivotal role of localized vascular inflammation in the initiation, progression, and destabilization of coronary atherosclerotic disease. (2) Methods: We comprehensively review recent, yet robust, scientific evidence elucidating the use of perivascular adipose tissue attenuation measurement on computed tomography applied to key anatomical sites. Specifically, the investigation extends to the internal carotid artery, aorta, left atrium, and coronary arteries. (3) Conclusions: The examination of perivascular adipose tissue attenuation emerges as a non-invasive and indirect means of estimating localized perivascular inflammation. This measure is quantified in Hounsfield units, indicative of the inflammatory response elicited by dense adipose tissue near the vessel or the atrium. Particularly noteworthy is its potential utility in assessing inflammatory processes within the coronary arteries, evaluating coronary microvascular dysfunction, appraising conditions within the aorta and carotid arteries, and discerning inflammatory states within the atria, especially in patients with atrial fibrillation. The widespread applicability of perivascular adipose tissue attenuation measurement underscores its significance as a diagnostic tool with considerable potential for enhancing our understanding and management of cardiovascular diseases.
Collapse
Affiliation(s)
- Domenico Tuttolomondo
- Department of Cardiology, Parma University Hospital, Via Gramsci 14, 43126 Parma, Italy
| | - Giampaolo Niccoli
- Department of Cardiology, Parma University Hospital, Via Gramsci 14, 43126 Parma, Italy
| | - Chiara Martini
- Department of Diagnostic, Parma University Hospital, 43126 Parma, Italy
- Department of Medicine and Surgery, University of Parma, Via Antonio Gramsci 14, 43126 Parma, Italy
| | - Fabrizio D’Ascenzo
- Division of Cardiology, Cardiovascular and Thoracic Department, Città della Salute e della Scienza, 10126 Turin, Italy
| | - Ovidio De Filippo
- Division of Cardiology, Cardiovascular and Thoracic Department, Città della Salute e della Scienza, 10126 Turin, Italy
| | - Francesco Nicolini
- Department of Cardiac Surgery, Parma University Hospital, Via Gramsci 14, 43126 Parma, Italy
| | - Francesco Formica
- Department of Cardiac Surgery, Parma University Hospital, Via Gramsci 14, 43126 Parma, Italy
| | - Davide Carino
- Department of Cardiac Surgery, Parma University Hospital, Via Gramsci 14, 43126 Parma, Italy
| | | | - Andrea Denegri
- Department of Cardiology, Parma University Hospital, Via Gramsci 14, 43126 Parma, Italy
| | - Giulia Magnani
- Department of Cardiology, Parma University Hospital, Via Gramsci 14, 43126 Parma, Italy
| | - Luigi Vignali
- Department of Cardiology, Parma University Hospital, Via Gramsci 14, 43126 Parma, Italy
| | - Massimo De Filippo
- Department of Medicine and Surgery (DiMec), Section of Radiology, University of Parma, Maggiore Hospital, Via Gramsci 14, 43126 Parma, Italy
| | - Nicola Sverzellati
- Scienze Radiologiche, Dipartimento di Medicina e Chirurgia, University-Hospital of Parma, 43126 Parma, Italy
| | - Andrea Ticinesi
- Department of Medicine and Surgery, University of Parma, Via Antonio Gramsci 14, 43126 Parma, Italy
- Geriatric-Rehabilitation Department, Azienda Ospedaliero-Universitaria di Parma, 43126 Parma, Italy
| | - Luca Bergamaschi
- Cardiology Unit, IRCCS Azienda Ospedaliera-Universitaria di Bologna, 40138 Bologna, Italy
- Department of Medical and Surgical Sciences—DIMEC—Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy
| | - Carmine Pizzi
- Cardiology Unit, IRCCS Azienda Ospedaliera-Universitaria di Bologna, 40138 Bologna, Italy
- Department of Medical and Surgical Sciences—DIMEC—Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy
| | - Elisa Gherbesi
- Department of Cardio-Thoracic-Vascular Diseases, Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20154 Milan, Italy
| | - Sergio Suma
- Department of Cardiology, Parma University Hospital, Via Gramsci 14, 43126 Parma, Italy
| | - Nicola Gaibazzi
- Department of Cardiology, Parma University Hospital, Via Gramsci 14, 43126 Parma, Italy
| |
Collapse
|
4
|
Sheth P, Mehta F, Jangid G, Anamika FNU, Singh B, Kanagala SG, Jain R. The Rising Use of E-Cigarettes: Unveiling the Health Risks and Controversies. Cardiol Rev 2024:00045415-990000000-00217. [PMID: 38385663 DOI: 10.1097/crd.0000000000000666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
The use of e-cigarettes has tremendously increased in recent times due to the widespread availability of e-cigarettes in diverse flavors, reduced cost compared to regular cigarettes, and misconception of being comparatively safe, which have led to around 2.55 million US middle and high school students smoking e-cigarettes. These devices use a nicotine-rich liquid, which is aerosolized electronically, producing vapors that may also include hazardous chemicals and heavy metals. E-cigarettes are associated with e-cigarette or vaping-associated lung injury, which presents as an acute respiratory ailment mirroring various pulmonary diseases. Additionally, it causes endothelial dysfunction, alters blood lipid profile by elevating circulating levels of low-density lipoprotein cholesterol, increases sympathetic tone, and is found to correlate with arterial stiffening, hence negatively affecting respiratory, cardiovascular, and overall health. We aim to provide a comprehensive analysis of the data on e-cigarettes and their harmful effects on health in comparison to conventional cigarette use by highlighting the pathophysiology of e-cigarette-induced adverse effects and critically analyzing the data both in favor and against its use. Our review concludes that no matter how much nicotine an e-cigarette contains, evidence shows that using it increases the risk of cardiovascular disease, albeit maybe not as much as smoking regular tobacco. Nonetheless, it is crucial to note that the long-term effects of e-cigarette usage are still not fully understood, and existing data have provided opposing viewpoints.
Collapse
Affiliation(s)
- Parth Sheth
- From the Internal Medicine, Smt. NHL Municipal Medical College, Ahmedabad, India
| | - Fena Mehta
- From the Internal Medicine, Smt. NHL Municipal Medical College, Ahmedabad, India
| | - Gurusha Jangid
- Internal Medicine, Dr. Sampurnanand Medical College, Jodhpur, India
| | - F N U Anamika
- Internal Medicine, University College of Medical Sciences, New Delhi, India
| | - Bhupinder Singh
- Internal Medicine, Government Medical College, Amritsar, Punjab, India
| | | | - Rohit Jain
- Internal Medicine, Penn State Hershey Medical Center, Hershey, PA
| |
Collapse
|
5
|
Osman A, Petrescu GS, Tuculină MJ, Dascălu IT, Popescu C, Enescu AȘ, Dăguci C, Cucu AP, Nistor C, Carsote M. Metabolic and Other Endocrine Elements with Regard to Lifestyle Choices: Focus on E-Cigarettes. Metabolites 2023; 13:1192. [PMID: 38132874 PMCID: PMC10745117 DOI: 10.3390/metabo13121192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/22/2023] [Accepted: 11/29/2023] [Indexed: 12/23/2023] Open
Abstract
Our objective was to overview recent data on metabolic/endocrine disorders with respect to e-cigarette (e-cig) use. This is a narrative review; we researched English, full-length, original articles on PubMed (between January 2020 and August 2023) by using different keywords in the area of metabolic/endocrine issues. We only included original clinical studies (n = 22) and excluded case reports and experimental studies. 3 studies (N1 = 22,385; N2 = 600,046; N3 = 5101) addressed prediabetes risk; N1 showed a 1.57-fold increased risk of dual vs. never smokers, a higher risk that was not confirmed in N2 (based on self-reported assessments). Current non-smokers (N1) who were dual smokers still have an increased odd of prediabetes (a 1.27-fold risk increase). N3 and another 2 studies addressed type 2 diabetes mellitus (DM): a lower prevalence of DM among dual users (3.3%) vs. cigarette smoking (5.9%) was identified. 6 studies investigated obesity profile (4 of them found positive correlations with e-cig use). One study (N4 = 373,781) showed that e-cig use was associated with obesity in the general population (OR = 1.6, 95%CI: 1.3-2.1, p < 0.05); another (N5 = 7505, 0.82% were e-cig-only) showed that obesity had a higher prevalence in dual smokers (51%) vs. cig-only (41.2%, p < 0.05), while another (N6 = 3055) found that female (not male) e-cig smokers had higher body mass index vs. non-smokers. Data on metabolic syndrome (MS) are provided for dual smokers (n = 2): one case-control study found that female dual smokers had higher odds of MS than non-smokers. The need for awareness with respect to potential e-cig--associated medical issues should be part of modern medicine, including daily anamnesis. Whether the metabolic/endocrine frame is part of the general picture is yet to be determined. Surveillance protocols should help clinicians to easily access the medical background of one subject, including this specific matter of e-cig with/without conventional cigarettes smoking and other habits/lifestyle elements, especially when taking into consideration metabolism anomalies.
Collapse
Affiliation(s)
- Andrei Osman
- Department of Anatomy and Embryology, Faculty of Dental Medicine, University of Medicine and Pharmacy of Craiova, Department ENT & Clinical Emergency County Hospital of Craiova, 200349 Craiova, Romania; (A.O.); (C.P.); (A.-Ș.E.)
| | - Gabriel Sebastian Petrescu
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania;
| | - Mihaela Jana Tuculină
- Department of Endodontics, Faculty of Dental Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania;
| | - Ionela Teodora Dascălu
- Department of Orthodontics, Faculty of Dental Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania;
| | - Cristina Popescu
- Department of Anatomy and Embryology, Faculty of Dental Medicine, University of Medicine and Pharmacy of Craiova, Department ENT & Clinical Emergency County Hospital of Craiova, 200349 Craiova, Romania; (A.O.); (C.P.); (A.-Ș.E.)
| | - Anca-Ștefania Enescu
- Department of Anatomy and Embryology, Faculty of Dental Medicine, University of Medicine and Pharmacy of Craiova, Department ENT & Clinical Emergency County Hospital of Craiova, 200349 Craiova, Romania; (A.O.); (C.P.); (A.-Ș.E.)
| | - Constantin Dăguci
- Department of Oro-Dental Prevention, Faculty of Dental Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania;
| | - Anca-Pati Cucu
- PhD Doctoral School, Carol Davila University of Medicine and Pharmacy, Bucharest & Thoracic Surgery Department, Dr. Carol Davila Central Military Emergency University Hospital, 010825 Bucharest, Romania;
| | - Claudiu Nistor
- Department 4—Cardio-Thoracic Pathology, Thoracic Surgery II Discipline, Carol Davila University of Medicine and Pharmacy & Thoracic Surgery Department, Dr. Carol Davila Central Military Emergency University Hospital, 010825 Bucharest, Romania;
| | - Mara Carsote
- Department of Endocrinology, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania & C.I. Parhon National Institute of Endocrinology, 011863 Bucharest, Romania;
| |
Collapse
|