ArticleAsia Pacific allergy2017
Increased antioxidant activity after exposure of ozone in murine asthma model.
Article in Asia Pacific allergy, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
4 citing papers in PubMed, 5 citations in OpenAlex.
- Neuronal and Astrocytic Lipid Metabolic Coupling Mediates Ozone-Induced Learning and Memory Impairment.Environment & health (Washington, D.C.) · 2026Article
- Does Oxidative Stress Along with Dysbiosis Participate in the Pathogenesis of Asthma in the Obese?Cell biochemistry and biophysics · 2023Article
- Toxicity of environmental ozone exposure on mice olfactory bulbs, using Western blot technique.Toxicology reports · 2020Article
- Aerobiology in Asian airway allergic diseases.Asia Pacific allergy · 2017Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundOzone is well known as an important component of ambient air pollutants. Ozone can aggravate respiratory symptoms in patients with bronchial asthma, but, not in healthy person. We hypothesized asthma itself may show different response to ozone compared to nonasthma.
objectiveThis study was performed to evaluate the differences of response to ozone between normal and asthmatic mice model in terms of status of oxidant injury and antioxidant activity.
methodsThree parts per million of ozone was exposed to ovalbumin (OVA)-induced murine asthma model for 3 hours at 3, 7, 14, 21 days after completion of asthma model. Airway responsiveness to methacholine was measured after completion of asthma model. Bronchoalveolar lavage (BAL), protein extraction from lung for Western blot and immunohistochemistry of 4-hydroxy-2-nonenal (4-HNE), proliferating cell nuclear antigen (PCNA), NF-E2 related factor 2 (Nrf-2), and activity of glutathione were performed at before and each ozone exposure day.
resultsAirway hyper-responsiveness and increased eosinophils in BAL fluid were observed in asthma model. In asthma model, the expression of 4-HNE already more increased at baseline (without ozone) compared to those in sham model. This increased expression is more enhanced at 3 days after ozone exposure. The expression of PCNA was significantly increased in OVA-model compared to those in sham model. The expression of Nrf-2 was observed at baseline, and 3 and 7 days after exposure ozone in asthma model, but not in sham model. The activity of glutathione increased significantly after exposure of ozone, but not in sham model.
conclusionMurine asthma model has enhanced oxygen toxicity and antioxidant activity response to ozone.
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