Search Results - "HELEN, Gideon St"

Public Health Consequences of e-Cigarette Use by St Helen, Gideon, Eaton, David L

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Nicotine delivery, retention and pharmacokinetics from various electronic cigarettes by St.Helen, Gideon, Havel, Christopher, Dempsey, Delia A., Jacob III, Peyton, Benowitz, Neal L.

“…Aims To measure the systemic retention of nicotine, propylene glycol (PG) and vegetable glycerin (VG) in electronic cigarette (e‐cigarette) users, and assess…”
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Comparison of Urine 4-(Methylnitrosamino)-1-(3)Pyridyl-1-Butanol and Cotinine for Assessment of Active and Passive Smoke Exposure in Urban Adolescents by Benowitz, Neal L, Nardone, Natalie, Jain, Shonul, Dempsey, Delia A, Addo, Newton, St Helen, Gideon, Jacob, 3rd, Peyton

“…Many adolescents are exposed to tobacco smoke, from either active smoking (CS) or secondhand smoke (SHS) exposure. Tobacco-specific biomarkers of exposure…”
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Twenty‐four‐hour subjective and pharmacological effects of ad‐libitum electronic and combustible cigarette use among dual users by Harvanko, Arit M., St Helen, Gideon, Nardone, Natalie, Addo, Newton, Benowitz, Neal L.

“…Background and Aims Relative pharmacological effects of e‐cigarettes and cigarettes during 24 hours of ad‐libitum use have not been described. In this study,…”
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Effects of Nicotine Metabolic Rate on Withdrawal Symptoms and Response to Cigarette Smoking After Abstinence by Liakoni, Evangelia, Edwards, Kathryn C., St. Helen, Gideon, Nardone, Natalie, Dempsey, Delia A., Tyndale, Rachel F., Benowitz, Neal L.

“…This study investigated the influence of the rate of nicotine metabolism, as indicated by the nicotine metabolite ratio (NMR), on tobacco dependence. We…”
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An Electronic Cigarette Vaping Machine for the Characterization of Aerosol Delivery and Composition by Havel, Christopher M., Benowitz, Neal L., Jacob, Peyton, St.Helen, Gideon

“…Characterization of aerosols generated by electronic cigarettes (e-cigarettes) is one method used to evaluate the safety of e-cigarettes. While some…”
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Nicotine and Carcinogen Exposure after Water Pipe Smoking in Hookah Bars by HELEN, Gideon St, BENOWITZ, Neal L, DAINS, Katherine M, HAVEL, Christopher, PENG, Margaret, JACOB, Peyton

“…Water pipe tobacco smoking is spreading globally and is increasingly becoming popular in the United States, particularly among young people. Although many…”
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Urinary anatalline and nicotelline cut-points to distinguish between exclusive and dual use of tobacco products by Edwards, Kathryn C, Helen, Gideon St, Jacob, 3rd, Peyton, Ozga, Jenny E, Stanton, Cassandra A

“…This study measured anatalline and nicotelline, two minor tobacco alkaloids, to discriminate between exclusive smokeless tobacco (SLT) use, exclusive…”
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Disposition kinetics and metabolism of nicotine and cotinine in African American smokers: impact of CYP2A6 genetic variation and enzymatic activity by Benowitz, Neal L, St. Helen, Gideon, Dempsey, Delia A, Jacob, Peyton, Tyndale, Rachel F

“…OBJECTIVEThe rate of nicotine metabolism, determined primarily by CYP2A6 activity, influences tobacco dependence and smoking-induced disease risk. The…”
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The Influence of Puff Characteristics, Nicotine Dependence, and Rate of Nicotine Metabolism on Daily Nicotine Exposure in African American Smokers by Ross, Kathryn C, Dempsey, Delia A, St Helen, Gideon, Delucchi, Kevin, Benowitz, Neal L

“…African American (AA) smokers experience greater tobacco-related disease burden than Whites, despite smoking fewer cigarettes per day (CPD). Understanding…”
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Relationship between skin melanin index and nicotine pharmacokinetics in African American smokers by Liakoni, Evangelia, St. Helen, Gideon, Dempsey, Delia A., Jacob, Peyton, Tyndale, Rachel F., Benowitz, Neal L.

“…•Nicotine pharmacokinetics and metabolism were not related to skin melanin content.•Skin melanin content did not influence tobacco dependence.•No evidence to…”
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Urine Cotinine Screening Detects Nearly Ubiquitous Tobacco Smoke Exposure in Urban Adolescents by Benowitz, Neal L., Jain, Shonul, Dempsey, Delia A., Nardone, Natalie, St. Helen, Gideon, Jacob, Peyton

“…Routine biochemical assessment of tobacco smoke exposure could lead to more effective interventions to reduce or prevent secondhand smoke (SHS)-related disease…”
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Tobacco papers and tobacco industry ties in "regulatory toxicology and pharmacology" by Velicer, Clayton, Helen, Gideon St, Glantz, Stanton A.

“…We examined the relationship between the tobacco industry and the journal Regulatory Toxicology and Pharmacology (RTP) using the Truth Tobacco Industry…”
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Intake of toxic and carcinogenic volatile organic compounds from secondhand smoke in motor vehicles by St Helen, Gideon, Jacob, 3rd, Peyton, Peng, Margaret, Dempsey, Delia A, Hammond, S Katharine, Benowitz, Neal L

“…Volatile organic compounds (VOC) from tobacco smoke are associated with cancer, cardiovascular, and respiratory diseases. The objective of this study was to…”
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The impact of e-cigarette and cigarette prices on e-cigarette and cigarette sales in California by Yao, Tingting, Sung, Hai-Yen, Huang, Jidong, Chu, Lela, St. Helen, Gideon, Max, Wendy

“…•No study estimated the impact of e-cig and cig prices on e-cig and cig sales in CA.•Cig prices were positively associated with reusable e-cig sales.•Reusable…”
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JUUL electronic cigarettes: Nicotine exposure and the user experience by Nardone, Natalie, Helen, Gideon St, Addo, Newton, Meighan, Sandra, Benowitz, Neal L.

“…•Adult JUUL users’ nicotine exposure similar to other e-cigarette/cigarette users.•JUUL users self-report low to moderate levels of dependence.•Specific device…”
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Utility of urinary Clara cell protein (CC16) to demonstrate increased lung epithelial permeability in non-smokers exposed to outdoor secondhand smoke by St Helen, Gideon, Holland, Nina T, Balmes, John R, Hall, Daniel B, Bernert, J Thomas, Vena, John E, Wang, Jia-Sheng, Naeher, Luke P

“…The objective of this study was to assess the utility of urinary Clara cell protein (CC16) as a biomarker of increased lung epithelial permeability in…”
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Cardiopulmonary Consequences of Vaping in Adolescents: A Scientific Statement From the American Heart Association by Wold, Loren E., Tarran, Robert, Crotty Alexander, Laura E., Hamburg, Naomi M., Kheradmand, Farrah, St. Helen, Gideon, Wu, Joseph C.

“…Although the US Food and Drug Administration has not approved e-cigarettes as a cessation aid, industry has at times positioned their products in that way for…”
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Comparison of Systemic Exposure to Toxic and/or Carcinogenic Volatile Organic Compounds (VOC) during Vaping, Smoking, and Abstention by St Helen, Gideon, Liakoni, Evangelia, Nardone, Natalie, Addo, Newton, Jacob, 3rd, Peyton, Benowitz, Neal L

“…Comparisons of systemic exposure to toxicants during monitored cigarette smoking, electronic cigarette (e-cigarette) use, and abstention are needed to enhance…”
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Urine Metabolites for Estimating Daily Intake of Nicotine From Cigarette Smoking by Benowitz, Neal L, St. Helen, Gideon, Nardone, Natalie, Cox, Lisa Sanderson, Jacob, Peyton

“…Abstract Introduction Accurate measurement of nicotine exposure from cigarette smoke is important in studying disease risk and level of dependence. Urine total…”
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