- 著者
- Mayumi Tsuji Chihaya Koriyama Yasuhiro Ishihara Megumi Yamamoto Kiwako Yamamoto-Hanada Kumiko Kanatani Yu Ait Bamai Kazunari Onishi Ayako Senju Shunsuke Araki Eiji Shibata Seiichi Morokuma Masafumi Sanefuji Hiroshi Kitazawa Mayako Saito Masakazu Umezawa Atsuto Onoda Koichi Kusuhara Rie Tanaka Toshihiro Kawamoto the Japan Environment & Children’s Study Group
- 出版者
- Japan Epidemiological Association
- 雑誌
- Journal of Epidemiology (ISSN:09175040)
- 巻号頁・発行日
- pp.JE20180098, (Released:2019-01-12)
- 参考文献数
- 54
- 被引用文献数
- 6
Background: Metal exposures could possibly affect allergic responses in pregnant women, although no studies have yet shown a clear relationship between the two, and such exposures might also affect the development of allergic diseases in children.Methods: We investigated the relationship between metal concentrations in whole blood and immunoglobulin E (IgE; total and specific) in 14,408 pregnant women who participated in the Japan Environment and Children’s Study. The subjects submitted self-administered questionnaires, and blood samples were collected from them twice, specifically, during the first trimester and again during the second/third trimester. Concentrations of the metals Cd, Pb, Hg, Se, and Mn, as well as serum total and allergen-specific IgEs for egg white, house dust-mites (HDM), Japanese cedar pollen (JCP), animal dander, and moth, were measured. Allergen-specific IgE(s) were divided based on concentrations <0.35 or ≥0.35 UA/mL, and the metal levels were divided into quartiles.Results: Multivariable logistic regression analysis showed that there was a significant negative correlation between HDM- and animal dander-specific IgEs and Hg and Mn concentrations. Conversely, there was a significant positive relationship between JCP-specific IgE and Hg and Se concentrations.Conclusions: Metal exposures may be related to both increases and decreases in allergen-specific IgEs in pregnant women.
- 著者
- Yasuhiro Ishihara Kouichi Itoh
- 出版者
- SOCIETY FOR FREE RADICAL RESEARCH JAPAN
- 雑誌
- Journal of Clinical Biochemistry and Nutrition (ISSN:09120009)
- 巻号頁・発行日
- vol.72, no.1, pp.23-27, 2023 (Released:2023-01-01)
- 参考文献数
- 51
- 被引用文献数
- 1
Microglia are immune cells in the brain that can respond to endogenous and exogenous substrates to elicit inflammatory reactions. The transcription factor nuclear factor kappa-light-chain-enhancer of activated B induces proinflammatory gene expression in response to foreign matter via pattern recognition receptors; thus, nuclear factor kappa-light-chain-enhancer of activated B is a master regulator of inflammation. During the inflammatory process, very large amounts of reactive oxygen species are generated and promote the onset and progression of inflammation. Interestingly, nuclear factor kappa-light-chain-enhancer of activated B drives the transcription of superoxide dismutase 2 in many types of cells, including microglia. Superoxide dismutase 2 is an antioxidative enzyme that catalyzes the dismutation of superoxide anions into molecular oxygen and hydrogen peroxide. Of note, nuclear factor kappa-light-chain-enhancer of activated B can initiate inflammation to elicit proinflammatory gene expression, while its transcription product superoxide dismutase 2 can suppress inflammation. In this review, we use recent knowledge to describe the interaction between oxidative stress and nuclear factor kappa-light-chain-enhancer of activated B and discuss the complicated role of microglial superoxide dismutase 2 in inflammation.