نتایج جستجو برای: urinary cotinine

تعداد نتایج: 109002  

Journal: :Gaceta sanitaria 2017
José M Martínez-Sánchez Adrián González-Marrón Juan Carlos Martín-Sánchez Xisca Sureda Marcela Fu Raúl Pérez-Ortuño Cristina Lidón-Moyano Iñaki Galán José Antonio Pascual Esteve Fernández

The objective of this study was to assess the validity of two questions about the perception of intensity of exposure to secondhand smoke (SHS) at home using as a reference environmental markers (airborne nicotine and benzene) and biomarkers of exposure (cotinine in saliva and urine). This was a cross-sectional study in a convenience sample of 49 non-smoking volunteers. We found a high correlat...

Journal: :Asian Pacific Journal of Cancer Prevention 2012

Journal: :Toxicological sciences : an official journal of the Society of Toxicology 2006
Anthony J Hedley Sarah M McGhee James L Repace Lai-Chin Wong Marcus Y S Yu Tze-Wai Wong Tai-Hing Lam

Workers in the catering industry are at greater risk of exposure to secondhand smoke (SHS) when smoke-free workplace policies are not in force. We determined the exposure of catering workers to SHS in Hong Kong and their risk of death from heart disease and lung cancer. Nonsmoking catering workers were provided with screening at their workplaces and at a central clinic. Participants reported wo...

Journal: :Psychological medicine 2013
S C Cho Y C Hong J W Kim S Park M H Park J Hur E J Park S B Hong J H Lee M S Shin B N Kim H J Yoo I H Cho S Y Bhang S Hahn

BACKGROUND We examined the cross-sectional relationship between environmental tobacco smoke exposure, continuous performance test (CPT) measures, and attention deficit hyperactivity disorder (ADHD) or learning disability symptoms in school-aged children. METHOD In total, 989 children (526 boys, mean age 9.1 ± 0.7 years), recruited from five South Korean cities participated in this study. We u...

2012
Hongwei Hou Wei Xiong Xiaotao Zhang Dongkui Song Gangling Tang Qingyuan Hu

A simple and sensitive high performance liquid chromatography-tandem mass spectrometry (HPLC-ESI-MS-MS) method was developed and validated for the quantification of creatinine in human urine. The analysis was carried out on an Agilent Zorbax Eclipse XDB-C18 column (2.1 × 150 mm, 3.5 μm). The mobile phase was 0.1% formic acid in water and 0.1% formic acid in acetonitrile (50/50, v/v). Linear cal...

2012
Amany Abdel-Fattah El-Shazly Walid Mohamed Abd El Raouf El-Zawahry Ahmad Mohamed Hamdy Manal Basyouni Ahmed

Purpose. Adult active smoking is a risk factor for dry eye. We hypothesize that passive smoking in children can also produce the same effects. Methods. We included 112 school children presenting with eye discomfort. Assessment of eye dryness and its severity levels depending on symptoms of dry eye, visual symptoms, tear breakup time (TBUT), Schirmer-1 test, and corneal fluorescein staining were...

Journal: :Pediatrics international : official journal of the Japan Pediatric Society 2006
Hasim Boyaci Nilay Etiler Can Duman Ilknur Basyigit Ayse Pala

BACKGROUND Environmental tobacco smoke (ETS) in the home continues to be a major health risk for children around the world. Measuring ETS is a central feature of clinical and epidemiological studies, with children's exposure often assessed through parental estimates. The authors examined the relationship between parent-reported estimates of children's exposure to ETS and children's urinary coti...

Journal: :Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 2007
Irina Stepanov Stephen S Hecht Bruce Lindgren Peyton Jacob Margaret Wilson Neal L Benowitz

Recently, we developed sensitive and quantitative methods for analysis of the biomarkers of tobacco smoke exposure nicotine, cotinine, and 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (NNAL) in human toenails. In this study, we further evaluated the newly developed toenail biomarkers by investigating their relationship to demographic factors, reported exposure, plasma nicotine, cotinine, and t...

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