Objective: To identify respiratory symptoms and COPD (forced vital capacity and forced expiratory volume in one second ratio < 0.70 and below the lower limit of normal) in non-smoking women with history of exposure to wood smoke of at least 80 hours-years.
Methods: One hundred sixty nonsmoking women were included. Demographic data and information about symptoms and other environmental exposures were collected. All women underwent spirometry and those with COPD also had their lung volumes measured.
Results: The COPD group had greater exposure in years to wood smoke (p = 0.043), greater length of rural residence (p = 0.042) and the same length of passive smoking (p = 0.297) and farm work (p = 0.985). Cough (69.8%), sputum (55.8%) and wheezing (67.4%) predominated in the COPD group (p < 0.001) compared to those without COPD (40.2%, 27.4%, 33, 3%, respectively). The COPD patients had mild to moderate obstructive disturbance and normal lung volumes, except that the residual volume and total lung capacity ratio (RV/TLC) > 0.40 in 45%, which correlated negatively with forced expiratory volume in one second (FEV1) and FEV1/vital forced capacity ratio (FEV1/FVC).
Conclusion: Women with prolonged exposure to wood smoke had predominantly mild to moderate COPD. Those without COPD had a high prevalence of chronic respiratory symptoms, justifying clinical and spirometric monitoring.
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http://dx.doi.org/10.1016/j.ramb.2013.09.001 | DOI Listing |
Int J Biol Macromol
March 2025
Zhejiang A&F University, College of Chemistry and Materials Engineering, Hangzhou 311300, PR China; Key Laboratory of Wood Science and Technology of Zhejiang Province, Hangzhou 311300, PR China. Electronic address:
Wood and its derivatives play a decisive role in traditional Chinese architecture. Waste wood as a major source of garbage in the construction industry represents a valuable source. The efficient recycling of waste wood has become an urgent technical problem in waste recycling research.
View Article and Find Full Text PDFFaraday Discuss
March 2025
Alaska Department of Environmental Conservation, 410 Willoughby Ave, Junea, AK 99811, USA.
Fairbanks Alaska has some of the highest recorded levels of fine particulate matter (PM) in the United States (U.S.), exceeding health-based standards since 2009.
View Article and Find Full Text PDFTalanta
February 2025
School of Mechanical and Materials Engineering, Washington State University, Pullman, WA, 99164, USA. Electronic address:
Exposure to wood smoke is associated with various adverse health problems. Biomonitoring of smoke exposure-associated biomarkers provides accurate measurements of personally absorbed doses. As a specific metabolite of benzene, the quantitative measurement of S-phenylmercapturic acid (S-PMA) plays a vital role in evaluating human exposure to wood smoke.
View Article and Find Full Text PDFInt J Cancer
February 2025
Division of Research, Kaiser Permanente Northern California, Oakland, California, USA.
Lower birth rates and higher pregnancy loss are observed after childhood cancer. Studies specific to adolescent and young adult (AYA) cancer rarely have information on pregnancies that do not end in live birth, fertility preservation strategies, or detailed cancer treatment information to assess these risks. To address this gap, we examined pregnancy outcomes after cancer in a cohort of 30,020 AYAs with detailed clinical records.
View Article and Find Full Text PDFJ Family Med Prim Care
January 2025
Department of Respiratory Medicine, SBKS MI and RC, Sumandeep Vidyapeeth Deemed to be University, Vadodara, Gujarat, India.
Introduction: Chronic respiratory symptoms (dyspnoea, coughing, sputum production) associated with abnormalities of the airways (bronchitis, bronchiolitis) and/or alveoli (emphysema) that result in persistent, frequently progressive airflow obstruction are the hallmarks of COPD, a diverse lung illness. The current investigation aimed to establish a clinical profile of patients with recently diagnosed COPD who present to a healthcare facility in Vadodara.
Materials And Methods: The Department of Respiratory Medicine conducted an observational cross-section study on individuals with recently discovered COPD.
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