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317 results for “Cigarette smoke”
Data from: Molecular characterization of aldehydes and ketones in particle phase of mainstream and sidestream cigarette smoke
Aldehydes and ketones (AKs) in cigarette smoke are risk to humans and environment. Due to the complexity of itself and the interference of the smoke tar matrix, the aldehydes and ketones in particle phase (AKPs) of mainstream smoke (MSS) and sidestream smoke (SSS) have not been well investigated. In this study, the AKPs of MSS and SSS were derivatized into polar products by reaction with Girard T reagent. The derivatives were isolated rapidly by column chromatography and analysed by Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). Fifteen species of aldehydes and ketones were detected by positive ion electrospray ionization (ESI) FT-ICR MS: O1–6, N1O1–4, N2O1–3 and N3O2–3. The total number of AKPs obtained by ESI FT-ICR MS in MSS and SSS is about 1100 and 970, respectively. After hydrolysis, the original AKPs were obtained and 63 carbonyls were identified and quantified by gas chromatography–mass spectrometry (GCMS). The nitrogen-containing and high-oxygen AKPs were further characterized by Orbitrap mass spectrometry. Structures of compounds with high relative abundance in the mass spectrum were speculated (e.g. a series of degradants of cembrenediol) by comparison with the results of GCMS.
Cytotoxicity, Mutagenicity and Genotoxicity of Electronic Cigarettes Emission Aerosols Compared to Cigarette Smoke: the REPLICA project
<p>In this work the REPLICA Team replicated part of the work published by Rudd and colleagues in 2020, which aims to establish the aerosol-induced cytotoxicity, mutagenesis and genotoxicity of a pod system e-cigarette aerosol compared to tobacco cigarette smoke. As in the original paper, we performed Neutral Red Test (NRU) for the evaluation of cytotoxicity, AMES test for the evaluation of mutagenesis and In Vitro Micronuclei (IVM) assay for the evaluation of genotoxicity on cells treated with cigarette smoke or e-cigarette aerosol. The results obtained showed high cytotoxicity, mutagenicity and genotoxicity induced by cigarette smoke, but slight or no cytotoxic, mutagenic and genotoxic effects induced by the e-cigarette aerosol. The data obtained support those previously presented by Rudd and colleagues, although we have highlighted some methodological flaws of their work. Overall, we can affirm that the results obtained by Rudd and colleagues have been established and our data also confirm the idea that e-cigarette aerosol is much safer and less harmful than e-cigarette smoking, making it a useful device in smoking harm reduction</p>
Evaluating the Impact of Synthetic Cooling Agents in Combustible Cigarettes on Smoking Perceptions and Use
ClinicalTrials.gov study NCT06230159. IPD Sharing: NO. Countries: 1. Publications: 0.
Cigarette Smoking Decision Study
ClinicalTrials.gov study NCT04595279. IPD Sharing: NO. Countries: 1. Publications: 0.
Effects of Menthol in E-cigarettes on Smoking Behaviors
ClinicalTrials.gov study NCT04521647. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Nicotine Pharmacokinetics Following Use of the P4M3 Gen 2.0 E-Cigarette Compared to Smoking Cigarettes
ClinicalTrials.gov study NCT05383508. IPD Sharing: Not stated. Countries: 1. Publications: 0.
E-cigarettes to Promote Smoking Reduction Among Individuals With Schizophrenia
ClinicalTrials.gov study NCT02918630. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Impact of Cigarette and E-cigarette Flavors on Adult Smoking Behavior
ClinicalTrials.gov study NCT04009850. IPD Sharing: NO. Countries: 1. Publications: 0.
Cigarette Pack Inserts for Smoking Cessation
ClinicalTrials.gov study NCT04075682. IPD Sharing: NO. Countries: 1. Publications: 0.
e-Cigarettes Versus NRT Gum for Smoking Cessation
ClinicalTrials.gov study NCT01925781. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Effects of FDA Authorized Smokeless Tobacco Claims Among US Adults Who Smoke Cigarettes
ClinicalTrials.gov study NCT06927700. IPD Sharing: YES. Countries: 1. Publications: 0.
Very Low Nicotine Content Cigarettes and E-Cigarettes in Promoting Smoking Cessation in Daily and Intermittent Cigarette Smokers
ClinicalTrials.gov study NCT02964182. IPD Sharing: Not stated. Countries: 1. Publications: 0.
The Impact of Cigarette Smoking on Periodontal Therapy
ClinicalTrials.gov study NCT05120206. IPD Sharing: NO. Countries: 0. Publications: 2.
Changes in Biomarker of Exposure in Adults Who Smoke Cigarettes Switching From Cigarettes to Heated Tobacco Products
ClinicalTrials.gov study NCT06179290. IPD Sharing: NO. Countries: 1. Publications: 0.
Effects of Intranasal Oxytocin on Cigarette Smoking
ClinicalTrials.gov study NCT02595749. IPD Sharing: NO. Countries: 1. Publications: 0.
Comparison of Nicotine Replacement Therapy and Electronic Cigarettes for Smoking Cessation in Pakistan
ClinicalTrials.gov study NCT06063421. IPD Sharing: YES. Countries: 1. Publications: 0.
Ecological Momentary Intervention of Implementation Intentions Delivered by Text Message to Reduce Cigarette Smoking
ClinicalTrials.gov study NCT04967885. IPD Sharing: NO. Countries: 1. Publications: 0.
Evaluation of Appeal and Impact of E-Cigarettes Among Chronic Smokers With Smoking-Related Cancers
ClinicalTrials.gov study NCT02648178. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Examining Brain Responses Linked to Emotion in Individuals Who Smoke Cigarettes
ClinicalTrials.gov study NCT04310735. IPD Sharing: UNDECIDED. Countries: 1. Publications: 0.
Facilitating Smoking Cessation With Reduced Nicotine Cigarettes
ClinicalTrials.gov study NCT02796391. IPD Sharing: Not stated. Countries: 1. Publications: 0.
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International Brain Laboratory public data
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OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.