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2 Minute Medicine (blog) |
Job insecurity linked to increased asthma risk
2 Minute Medicine (blog) Study Rundown: It is well-established that excessive psychological stressors can increase the incidence of many diseases, including asthma. In particular, high job insecurity has been associated with a higher incidence of neurological, psychiatric, and … |
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Agri-View |
Farms linked to less asthma, allergies
Agri-View “We know that children who grow up on farms where animals are raised have a lower likelihood of developing asthma, allergies and eczema,” said Matthew Keifer, director of the National Farm Medicine Center at Marshfield Clinic Research Foundation in … |
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| Related Articles |
Reactive Oxygen Species Generation Linked to Sources of Atmospheric Particulate Matter and Cardiorespiratory Effects.
Environ Sci Technol. 2015 Oct 12;
Authors: Bates JT, Weber RJ, Abrams J, Verma V, Fang T, Klein M, Strickland M, Sarnat SE, Chang HH, Mulholland JA, Tolbert PE, Russell AG
Abstract
Exposure to atmospheric fine particulate matter (PM2.5) is associated with cardiorespiratory morbidity and mortality, but the mechanisms are not well understood. We assess the hypothesis that PM2.5 induces oxidative stress in the body via catalytic generation of reactive oxygen species (ROS). A dithiothreitol (DTT) assay was used to measure the ROS-generation potential of water-soluble PM2.5. Source apportionment on ambient (Atlanta, GA) PM2.5 was performed using the Chemical Mass Balance Method with ensemble-averaged source impact profiles. Linear regression modeling was used to relate PM2.5 emissions sources to ROS-generation potential and to estimate historical levels of DTT activity for use in an epidemiologic analysis for the period 1998-2009. Light-duty gasoline vehicles (LDGV) exhibited the highest intrinsic DTT activity, followed by biomass burning (BURN) and heavy-duty diesel vehicles (HDDV) (0.11 ± 0.02, 0.069 ± 0.02, and 0.052 ± 0.01 nmol min-1 ?g-1source, respectively). BURN contributed the largest fraction to total DTT activity over the study period, followed by LDGV and HDDV (45%, 20% and 14%, respectively). DTT activity was more strongly associated with emergency department visits for asthma/wheezing and congestive heart failure than PM2.5. This work provides further epidemiologic evidence of a biologically plausible mechanism, that of oxidative stress, for associations of adverse health outcomes with PM2.5 mass, and supports continued assessment of the utility of the DTT activity assay.biological plausibility to associations of adverse health outcomes with PM2.5 mass, supporting oxidative stress as a mechanism.
PMID: 26457347 [PubMed – as supplied by publisher]
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Dietary factors linked to asthma symptoms, allergic sensitization
Healio Having a canteen lunch one or two times per week was associated with wheeze development during the previous year (adjusted OR = 0.71; 95% CI, 0.52-0.96), lifetime asthma risk (adjusted OR = 0.76; 95% CI, 0.6-0.96) and sensitivity to allergies (adjusted … |
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Gut microbes linked to asthma risk
Genetic Literacy Project Now, scientists have pinned down four types of bacteria whose presence definitively prevents asthma—a chronic lung disease that would seem to have no business communicating with your nether regions. But the two systems seem to be linked in a deep, … |
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The Daily Progress |
Health: 'Good' bacteria, asthma prevention linked
The Daily Progress WASHINGTON — Gut checks suggest that not having enough of certain “good” intestinal germs early in life may increase babies' risk of developing asthma, according to a new study of more than 300 children. Wait: What could gut bacteria have to do with a … 'Too Clean' Environment May Lead to Childhood Asthma, Study Suggests Asthma risk in infants may be reduced by gut bacteria Gut Bacteria Could be the Key to Preventing Asthma |
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Asthma medications taken during infancy linked to stunted growth …
EurekAlert (press release) Infants given asthma medications during their first 2 years of age are likely to be stunted in later life, according to research presented today at the 54th Annual European Society for Paediatric Endocrinology Meeting. The findings highlight the … |
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Dallas Morning News |
EPA tightening limits on smog-causing ozone linked to asthma, respiratory illness
Dallas Morning News WASHINGTON — The Obama administration has set a new national ozone standard, tightening limits on the smog-forming pollution linked to asthma and respiratory illness. Officials familiar with the plan but not authorized to speak on the record say the … EPA tightens limits on smog-causing ozone linked to asthma and lung diseases US: Current smog limit inadequate to protect public health |
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Anxiety, depression linked to poor asthma control
Healio Giorgio Ciprandi, MD, of the department of medicine at IRCCS — Azienda Ospedaliera Universitaria San Martino in Italy, and colleagues analyzed 263 patients with asthma by performing a clinical examination that included testing lung function and … |
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Medical Xpress |
Exposure to wildfire smoke linked to increased ER visits for asthma
Medical Xpress Obstruction of the lumen of a bronchiole by mucoid exudate, goblet cell metaplasia, and epithelial basement membrane thickening in a person with asthma. Credit: Yale Rosen/Wikipedia/CC BY-SA 2.0. Researchers who analyzed data from the 2006-2007 … |
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