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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.
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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
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Guo Q, Pan L, Qin Y, Xie F, Wang X, Zhao X, Chen L, Wang B, Cai J, Liu H. Combined use of analyte protectants and precolumn backflushing for a robust, high-throughput quantitative determination of aroma compounds in cigarette mainstream smoke by gas chromatography-tandem mass spectrometry. Microchem J 2022. [DOI: 10.1016/j.microc.2021.107121] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Wen Z, Gu X, Tang X, Li X, Pang Y, Hu Q, Wang J, Zhang L, Liu Y, Zhang W. Time-resolved online analysis of the gas- and particulate-phase of cigarette smoke generated by a heated tobacco product using vacuum ultraviolet photoionization mass spectrometry. Talanta 2022; 238:123062. [PMID: 34801915 DOI: 10.1016/j.talanta.2021.123062] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/09/2021] [Accepted: 11/10/2021] [Indexed: 11/19/2022]
Abstract
We present a vacuum ultraviolet (VUV) lamp-based photoionization time-of-flight (TOF) mass spectrometer coupled with a capillary inlet and an aerodynamic lens to online analyze the chemical compositions of the gas- and particulate-phase of cigarette smoke of a heated tobacco product (HTP). Both phase compositions of the fresh cigarette smoke, without dilution and pretreatment, are softly photoionized and their mass spectra are measured with a time resolution of 1 s. It is shown that the gas-phase compositions with low mass are volatile organic compounds (VOCs), and the particulate-phase compositions are also clearly identified and cover the full mass range of the mass spectrometer. The time- or puff-by-puff resolved dynamic data are obtained for each species and provide abundant information to unravel the chemistry of the HTP smoke. In addition, the present results show that besides thermal vaporization, a couple of chemical reactions including pyrolysis and degradation have also occurred in the HTP smoking process, although its operation temperature is less than 350 °C. Even if not done here, this study paves the way to analyze the gas- and particulate-phase chemical compositions of a complex system in real time, like the cigarette smoke presented here, by using advanced soft ionization mass spectrometry.
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Affiliation(s)
- Zuoying Wen
- Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, Anhui, China
| | - Xuejun Gu
- Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, Anhui, China
| | - Xiaofeng Tang
- Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, Anhui, China.
| | - Xiangyu Li
- China National Tobacco Quality Supervision & Test Centre, Zhengzhou, 450001, Henan, China
| | - Yongqiang Pang
- China National Tobacco Quality Supervision & Test Centre, Zhengzhou, 450001, Henan, China
| | - Qingyuan Hu
- China National Tobacco Quality Supervision & Test Centre, Zhengzhou, 450001, Henan, China.
| | - Jian Wang
- Key Laboratory of Combustion and Pyrolysis, China Tobacco Anhui Industrial Co, Ltd, Hefei, 230088, Anhui, China
| | - Long Zhang
- Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, Anhui, China
| | - Yong Liu
- Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, Anhui, China
| | - Weijun Zhang
- Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, Anhui, China.
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