Results 1 to 10 of about 25,689 (170)

Nicotine and cotinine enhance SARS-CoV-2 entry through distinct but complementary mechanisms in human respiratory epithelial cells [PDF]

open access: yesJournal of Virology
Previous epidemiological studies have shown that E-cigarette and tobacco users are more likely to develop COVID-19 symptoms than non-users. To investigate the underlying mechanisms, we examined the effects of nicotine, the major component of tobacco and ...
Jiheng Xu   +7 more
doaj   +2 more sources

Food insecurity and elevated nicotine exposure among U.S. tobacco users: Evidence from NHANES [PDF]

open access: yesAddictive Behaviors Reports
Background: Tobacco use and food insecurity (FI) frequently co-occur and may influence each other bidirectionally. Most prior research has emphasized tobacco use as a driver of FI, typically relying on self-reported measures.
Casey Jordan Roulette
doaj   +2 more sources

Association between serum cotinine and α-Klotho levels among adults: Findings from the National Health and Nutrition Examination Survey 2007–2016

open access: yesTobacco Induced Diseases, 2022
Introduction Serum cotinine is a sensitive and specific marker of tobacco smoke exposure. α-Klotho is an anti-ageing molecule, which plays an important role in several diseases.
Yu Yao   +4 more
doaj   +1 more source

Assessing tobacco smoke exposure in pregnancy from self-report, urinary cotinine and NNAL: a validation study using the New Hampshire Birth Cohort Study

open access: yesBMJ Open, 2022
Objectives Accurate assessment of tobacco smoke exposure is key to evaluate its effects. We sought to validate and establish cut-offs for self-reported smoking and secondhand smoke (SHS) exposure during pregnancy using urinary cotinine and 4 ...
Margaret R Karagas   +8 more
doaj   +1 more source

Simultaneous Measurement and Distribution Analysis of Urinary Nicotine, Cotinine, Trans-3′-Hydroxycotinine, Nornicotine, Anabasine, and Total Nicotine Equivalents in a Large Korean Population

open access: yesMolecules, 2023
Measurement of multiple nicotine metabolites and total nicotine equivalents (TNE) might be a more reliable strategy for tobacco exposure verification than measuring single urinary cotinine alone.
Hyun-Seung Lee   +2 more
doaj   +1 more source

Factors Affecting the Serum Cotinine Level of Male Smokers in Malang, Indonesia

open access: yesInternational Journal of Medical Toxicology and Forensic Medicine, 2023
Background: In tobacco, nicotine is the primary toxic agent that causes health problems. As a primary metabolite of nicotine, cotinine is frequently used as an accurate measure of exposure to tobacco smoke.
Kumboyono Kumboyono   +10 more
doaj   +3 more sources

Racial Disparity in the Associations of Cotinine with Insulin Secretion: Data from the National Health and Nutrition Examination Survey, 2007-2012. [PDF]

open access: yesPLoS ONE, 2016
BACKGROUND:Although relationships between smoking/high cotinine and type 2 diabetes have consistently been observed, few studies have investigated the relationship between cotinine and underlying pathophysiological defects that characterize diabetes ...
Rong Liu   +4 more
doaj   +1 more source

Effect of Sample Storage Conditions on Measurements of Salivary Cotinine Levels

open access: yesMetabolites, 2020
Information on smoking exposure obtained with self-reports may be inaccurate. Cotinine has a large half-life and its salivary levels correlate well with plasmatic levels.
Fábio Renato Manzolli Leite   +4 more
doaj   +1 more source

The prevalence of and factors associated with urinary cotinine-verified smoking in Korean adults: The 2008-2011 Korea National Health and Nutrition Examination Survey. [PDF]

open access: yesPLoS ONE, 2018
BACKGROUND:Smoking rate based on self-reporting questionnaire might be underestimated. Cotinine is the principal metabolite of nicotine and is considered an accurate biomarker of exposure to cigarette smoke. OBJECTIVES:This study evaluated the prevalence
Jae Won Hong   +2 more
doaj   +1 more source

Association between cotinine-verified smoking status and moderately increased albuminuria in the middle-aged and older population in Korea: A nationwide population-based study.

open access: yesPLoS ONE, 2021
ObjectivesAlthough several self-reported questionnaire-based studies have found an association between smoking and moderately increased albuminuria, this result remains controversial.
Yeonjoo Choi   +10 more
doaj   +1 more source

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