Results 61 to 70 of about 47,546 (244)

Severity of effect considerations regarding the use of mutation as a toxicological endpoint for risk assessment: A report from the 8th International Workshop on Genotoxicity Testing (IWGT)

Environmental and Molecular Mutagenesis, EarlyView.
Abstract Exposure levels without appreciable human health risk may be determined by dividing a point of departure on a dose–response curve (e.g., benchmark dose) by a composite adjustment factor (AF). An “effect severity” AF (ESAF) is employed in some regulatory contexts.
Barbara L. Parsons, Marc A. Beal, Kerry L. Dearfield, George R. Douglas, Min Gi, B. Bhaskar Gollapudi, Robert H. Heflich, Katsuyoshi Horibata, Michelle Kenyon, Alexandra S. Long, David P. Lovell, Anthony M. Lynch, Meagan B. Myers, Stefan Pfuhler, Alisa Vespa, Andreas Zeller, George E. Johnson, Paul A. White   +17 more
wiley   +1 more source

Exposure to active and passive smoking among Greek pregnant women

Tobacco Induced Diseases, 2016
Introduction Active smoking and exposure to passive smoke are responsible for numerous adverse pregnancy outcomes for women and their infants. The aim of this study was to explore the perceptions, attitudes, patterns of personal tobacco use and exposure ...
Victoria G. Vivilaki, Athina Diamanti, Maria Tzeli, Evridiki Patelarou, Debra Bick, Sophia Papadakis, Katerina Lykeridou, Paraskevi Katsaounou   +7 more
doaj   +1 more source

Greater Attention to Gingival Cancer and Floor of Mouth Cancer: Based on a Retrospective Analysis of Oral Cancer Across Different Subsites

Head &Neck, EarlyView.
ABSTRACT Background The gingiva and floor of the mouth are distinct subsites, and oral squamous cell carcinoma (OSCC) originating in these locations warrants further indepth understanding. Methods This study enrolled patients with OSCC from 2000 to 2020, and analyzed the clinicopathological characteristics.
Hao Li, Yi Ding, Yansheng Wu, Yan Fang, Xinhua Li, Weifeng Shi, Shaoshi Chen, Ailin Yang, Jin Zhang, Ruoyu Shi, Chao Jing, Xudong Wang, Yuansheng Duan   +12 more
wiley   +1 more source

The impact of tobacco cessation on buccal mucosa cancer risk: A multi‐centre case–control study in India

International Journal of Cancer, EarlyView.
What's New? While the association between tobacco consumption and oral cancer is well established, the effect of cessation, particularly of chewing tobacco, the most common tobacco product in South Asia, is understudied. This case–control study in an Indian population demonstrates that a longer duration of tobacco smoking and chewing cessation is ...
Gayathri B. Pullat, Bastian Bohrmann, Grace Sarah George, Shubham Dikshit, Arjun Singh, Pankaj Chaturvedi, Rajesh Dikshit, Sarah Lewington, Sharayu Mhatre   +8 more
wiley   +1 more source

Environmental tobacco smoke exposure among non-smoking waiters: measurement of expired carbon monoxide levels

São Paulo Medical Journal, 2000
CONTEXT: Exposure to environmental tobacco smoke is a health risk that is of concern to patrons and of particular concern to employees of restaurants and bars.
Ronaldo Laranjeira, Sandra Pillon, John Dunn   +2 more
doaj   +1 more source

Associations between Nugent‐bacterial vaginosis and preterm birth and other adverse pregnancy outcomes in rural northwestern Bangladesh

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objective Bacterial vaginosis, defined by Nugent score (Nugent‐BV), has been associated with preterm birth and other adverse pregnancy outcomes. However, few studies have longitudinally described the associations between Nugent‐BV and adverse pregnancy outcomes at varying times in pregnancy.
Daniel J. Erchick, Susan Tuddenham, Lena Kan, Lee S. F. Wu, Alain B. Labrique, Hasmot Ali, Ethan K. Gough, Mahbubur Rashid, Towfida J. Siddiqua, Subhra Chakraborty, Pawel Gajer, Michael France, Jacques Ravel, Golsa M. Yazdy, Keith P. West, Parul Christian   +15 more
wiley   +1 more source

Post protocol residual thickness as a negative predictor for pharmacological treatment in early pregnancy loss

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objective To determine the rate of pharmacological treatment failure in early pregnancy loss, assess post‐treatment residua thickness as a predictor of retained products of conception (RPOC), identify a clinically relevant cutoff, and evaluate additional clinical and sonographic predictors. Methods This retrospective cohort study was conducted
Ravit Pertez‐Machluf, Maya Kimhi, Rotem Yedidia Moser, David Rosen, Yair Daykan, Ron Schonman, Zvi Klein, Yael Yagur   +7 more
wiley   +1 more source

Letter to the Editor Regarding the Article: “Prevalence of Portuguese Children Exposed to Secondhand Smoke at Home and in the Car”

Acta Médica Portuguesa, 2019
N/a.
Ana Rute Marques
doaj   +1 more source

Move beyond free radical theory of aging

iMetaOmics, EarlyView.
Free radicals play a dual, dose‐dependent role in aging. Low levels activate the key sensor adenosine 5'‐monophosphate‐activated protein kinase (AMPK), promoting cell survival mechanisms like autophagy and enhancing mitochondrial health. High levels, however, push AMPK to initiate cell death pathways, such as apoptosis. This positions AMPK as a central
Xiaofeng Dai, Meilan Hu, Ruohan Lyu
wiley   +1 more source

Effect of smoking over one pack daily on implant healing and health: A cohort study

Journal of Periodontology, EarlyView.
Abstract Background This prospective cohort trial examines the effects of heavy smoking on peri‐implant marginal bone loss (MBL) and implant survival rates over 15 months. Methods Thirty subjects, categorized as either smokers (more than 20 cigarettes daily for over 5 years) or non‐smokers, were initially recruited with pocket depths ≤ 5 mm and at ...
Yaniv Mayer, Eran Gabay, Eli E. Machtei, Eli Regev, Ofir Ginesin, Zvi Gutmacher, Jacob Horwitz, Luigi Canullo, Jamil Awad Shibli, Hadar Giladi Zigdon   +9 more
wiley   +1 more source