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Kobayashi S, Yoda Y, Takagi H, Ito T, Wakamatsu J, Nakatsubo R, Horie Y, Hiraki T, Shima M. Short-term effects of the chemical components of fine particulate matter on pulmonary function: A repeated panel study among adolescents. Sci Total Environ 2023; 895:165195. [PMID: 37391138 DOI: 10.1016/j.scitotenv.2023.165195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 06/07/2023] [Accepted: 06/27/2023] [Indexed: 07/02/2023]
Abstract
The effects of the chemical components of fine particulate matter (PM2.5) have been drawing attention. However, information regarding the impact of low PM2.5 concentrations is limited. Hence, we aimed to investigate the short-term effects of the chemical components of PM2.5 on pulmonary function and their seasonal differences in healthy adolescents living on an isolated island without major artificial sources of air pollution. A panel study was repeatedly conducted twice a year for one month every spring and fall from October 2014 to November 2016 on an isolated island in the Seto Inland Sea, which has no major artificial sources of air pollution. Daily measurements of peak expiratory flow (PEF) and forced expiratory volume in 1 s (FEV1) were performed in 47 healthy college students, and the concentrations of 35 chemical components of PM2.5 were analyzed every 24 h. Using a mixed-effects model, the relationship between pulmonary function values and concentrations of PM2.5 components was analyzed. Significant associations were observed between several PM2.5 components and decreased pulmonary function. Among the ionic components, sulfate was strongly related to decreases in PEF and FEV1 (-4.20 L/min [95 % confidence interval (CI): -6.40 to -2.00] and - 0.04 L [95 % CI: -0.05 to -0.02] per interquartile range increase, respectively). Among the elemental components, potassium induced the greatest reduction in PEF and FEV1. Therefore, PEF and FEV1 were significantly reduced as the concentrations of several PM2.5 components increased during fall, with minimal changes observed during spring. Several chemical components of PM2.5 were significantly associated with decreased pulmonary function among healthy adolescents. The concentrations of PM2.5 chemical components differed by season, suggesting the occurrence of distinct effects on the respiratory system depending on the type of component.
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Affiliation(s)
- Satoru Kobayashi
- Department of Public Health, School of Medicine, Hyogo Medical University, Nishinomiya, Hyogo 663-8501, Japan
| | - Yoshiko Yoda
- Department of Public Health, School of Medicine, Hyogo Medical University, Nishinomiya, Hyogo 663-8501, Japan.
| | - Hiroshi Takagi
- National Institute of Technology, Yuge College, Kamijima, Ehime 794-2593, Japan
| | - Takeshi Ito
- National Institute of Technology, Yuge College, Kamijima, Ehime 794-2593, Japan
| | - Junko Wakamatsu
- National Institute of Technology, Yuge College, Kamijima, Ehime 794-2593, Japan
| | - Ryohei Nakatsubo
- Hyogo Prefectural Institute of Environmental Sciences, Kobe, Hyogo 654-0037, Japan
| | - Yosuke Horie
- Hyogo Prefectural Institute of Environmental Sciences, Kobe, Hyogo 654-0037, Japan
| | - Takatoshi Hiraki
- Hyogo Prefectural Institute of Environmental Sciences, Kobe, Hyogo 654-0037, Japan
| | - Masayuki Shima
- Department of Public Health, School of Medicine, Hyogo Medical University, Nishinomiya, Hyogo 663-8501, Japan
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Yoda Y, Takagi H, Wakamatsu J, Ito T, Nakatsubo R, Horie Y, Hiraki T, Shima M. Stronger association between particulate air pollution and pulmonary function among healthy students in fall than in spring. Sci Total Environ 2019; 675:483-489. [PMID: 31030154 DOI: 10.1016/j.scitotenv.2019.04.268] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/21/2019] [Accepted: 04/17/2019] [Indexed: 06/09/2023]
Abstract
Previous studies have reported the short-term effects of particulate air pollution on health. However, most of those studies were relatively short in duration, with only a few, in healthy adolescents. We investigated the short-term effects of particulate air pollution on pulmonary function in healthy adolescents over a long period. A panel study was repeatedly conducted twice a year for about one month each, in spring and fall from 2014 to 2016, in an isolated island in the Seto Inland Sea, Japan. Daily measurements of peak expiratory flow (PEF) and forced expiratory volume in 1 s (FEV1) were performed in a total of 48 healthy college students aged 15-19 years. The ambient concentrations of particulate matter with diameter ≤2.5 μm (PM2.5) and between 2.5 and 10 μm (PM10-2.5), and black carbon (BC) were continuously measured. A mixed-effects model was used to investigate the relationships between air pollutants and pulmonary function. In the overall analyses of the six study periods, decreases in the PEF and FEV1 were significantly associated with increases in the PM2.5 and BC concentrations. The greatest decrease was found in FEV1 (-1.97% [95% confidence interval (CI): -2.90, -1.04]), which was associated with an interquartile range (IQR) increase in the 0-72-h average concentrations of PM2.5 (14.1 μg/m3). Neither PEF nor FEV1 were associated with PM10-2.5 concentrations. In the analyses by season, both the PEF and FEV1 values decreased significantly in relation to increases in the PM2.5, PM10-2.5 and BC concentrations in the fall. However, in spring, both PEF and FEV1 showed weak associations with each of the pollutants. In conclusion, relatively low increases in the ambient particulate matter levels were associated with reduced pulmonary function among healthy adolescents. This association was stronger in fall than in spring.
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Affiliation(s)
- Yoshiko Yoda
- Department of Public Health, Hyogo College of Medicine, Nishinomiya, Japan.
| | - Hiroshi Takagi
- National Institute of Technology, Yuge College, Kamijima, Japan.
| | - Junko Wakamatsu
- National Institute of Technology, Yuge College, Kamijima, Japan.
| | - Takeshi Ito
- National Institute of Technology, Yuge College, Kamijima, Japan.
| | - Ryohei Nakatsubo
- Hyogo Prefectural Institute of Environmental Sciences, Kobe, Japan.
| | - Yosuke Horie
- Hyogo Prefectural Institute of Environmental Sciences, Kobe, Japan.
| | - Takatoshi Hiraki
- Hyogo Prefectural Institute of Environmental Sciences, Kobe, Japan.
| | - Masayuki Shima
- Department of Public Health, Hyogo College of Medicine, Nishinomiya, Japan.
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Yoda Y, Takagi H, Wakamatsu J, Ito T, Nakatsubo R, Horie Y, Hiraki T, Shima M. Acute effects of air pollutants on pulmonary function among students: a panel study in an isolated island. Environ Health Prev Med 2017; 22:33. [PMID: 29165154 PMCID: PMC5664589 DOI: 10.1186/s12199-017-0646-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 03/20/2017] [Indexed: 11/23/2022] Open
Abstract
Background Many epidemiological studies on the health effects of air pollutants have been carried out in regions with major sources such as factories and automobiles. However, the health effects of air pollutants in regions without major sources remain unclear. This study investigated the acute effects of ambient air pollution on pulmonary function among healthy students in an isolated island without major artificial sources of air pollutants. Methods A panel study was conducted of 43 healthy subjects who attended a school in an isolated island in the Seto Inland Sea, Japan. We measured the forced expiratory volume in 1 s (FEV1) and peak expiratory flow (PEF) every morning for about 1 month in May 2014. Ambient concentrations of particulate matter ≤ 2.5 μm in diameter (PM2.5), particulate matter between 2.5 and 10 μm in diameter (PM10-2.5), black carbon (BC), ozone (O3), and nitrogen dioxide (NO2) were measured. The associations between the concentrations of air pollutants and pulmonary function were analyzed using mixed-effects models. Results A decrease in FEV1 was significantly associated with BC concentrations (−27.28 mL [95%confidence interval (CI):−54.10,−0.46] for an interquartile range (IQR) increase of 0.23 μg/m3). The decrease in PEF was significantly associated with indoor O3 concentrations (−8.03 L/min [95% CI:−13.02,−3.03] for an IQR increase of 11 ppb). Among subjects with a history of allergy, an increase in PM2.5 concentrations was significantly associated with low FEV1. In subjects with a history of asthma, an inverse association between the indoor O3 concentration and pulmonary function was observed. Conclusions Our results demonstrate that increases in BC and O3 concentrations have acute effects on the pulmonary function among students in an isolated island without major artificial sources of air pollutants. Electronic supplementary material The online version of this article (doi:10.1186/s12199-017-0646-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yoshiko Yoda
- Department of Public Health, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan
| | - Hiroshi Takagi
- National Institute of Technology, Yuge College, Kamijima, Ehime, Japan
| | - Junko Wakamatsu
- National Institute of Technology, Yuge College, Kamijima, Ehime, Japan
| | - Takeshi Ito
- National Institute of Technology, Yuge College, Kamijima, Ehime, Japan
| | - Ryouhei Nakatsubo
- Hyogo Prefectural Institute of Environmental Sciences, Kobe, Hyogo, Japan
| | - Yosuke Horie
- Hyogo Prefectural Institute of Environmental Sciences, Kobe, Hyogo, Japan
| | - Takatoshi Hiraki
- Hyogo Prefectural Institute of Environmental Sciences, Kobe, Hyogo, Japan
| | - Masayuki Shima
- Department of Public Health, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan.
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Hayakawa T, Yoshida Y, Yasui M, Ito T, Iwasaki T, Wakamatsu J, Hattori A, Nishimura T. Heat-induced gelation of myosin in a low ionic strength solution containing L-histidine. Meat Sci 2012; 90:77-80. [DOI: 10.1016/j.meatsci.2011.06.002] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Revised: 05/10/2011] [Accepted: 06/01/2011] [Indexed: 10/18/2022]
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Hayakawa T, Ito T, Wakamatsu J, Nishimura T, Hattori A. Myosin filament depolymerizes in a low ionic strength solution containing l-histidine. Meat Sci 2010; 84:742-6. [DOI: 10.1016/j.meatsci.2009.11.010] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2009] [Revised: 11/06/2009] [Accepted: 11/13/2009] [Indexed: 11/28/2022]
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Hayakawa T, Ito T, Wakamatsu J, Nishimura T, Hattori A. Myosin is solubilized in a neutral and low ionic strength solution containing l-histidine. Meat Sci 2009; 82:151-4. [DOI: 10.1016/j.meatsci.2009.01.002] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2008] [Revised: 12/10/2008] [Accepted: 01/04/2009] [Indexed: 10/21/2022]
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Ito T, Yamamoto T, Matsumoto Y, Wakamatsu J, Kato Y, Tsuboi R. Folliculotropic mycosis fungoides and a leonine clinical appearance of the face. Dermatol Online J 2008; 14:6. [PMID: 19061588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023] Open
Abstract
A 73-year-old man presented with a two year history of multiple nodules and follicular papules accompanied by slight itching on the face and the forearm. A physical examination showed multiple, soft, erythematous nodules on the forehead, cheek, and jaw, contributing to a generally leonine appearance of the face. Histopathological examination from the forehead revealed dense, massive concentrations of atypical lymphocytes in the dermis, and the forearm showed infiltration of atypical lymphocytes predominantly around the follicles. We diagnosed this condition as folliculotropic cutaneous T cell lymphoma (CTCL). EPOCH therapy was very effective and the lesions of the forehead and forearm showed a decrease in tumor elevation; the histology showed a precipitous decrease in the number of the atypical lymphocytes.
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Affiliation(s)
- Tomonobu Ito
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan.
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Ito T, Yamamoto T, Matsumoto Y, Wakamatsu J, Kato Y, Tsuboi R. Folliculotropic mycosis fungoides and a leonine clinical appearance of the face. Dermatol Online J 2008. [DOI: 10.5070/d30w86n2qx] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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Wakamatsu J, Yamamoto T, Uchida H, Tsuboi R. Lichen sclerosus et atrophicus of the lip: successful treatment with topical tacrolimus. J Eur Acad Dermatol Venereol 2008; 22:760-2. [DOI: 10.1111/j.1468-3083.2007.02469.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Wakamatsu J, Odagiri H, Nishimura T, Hattori A. Observation of the distribution of Zn protoporphyrin IX (ZPP) in Parma ham by using purple LED and image analysis. Meat Sci 2006; 74:594-9. [DOI: 10.1016/j.meatsci.2006.05.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2006] [Revised: 05/08/2006] [Accepted: 05/08/2006] [Indexed: 10/24/2022]
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Wakamatsu J, Okui J, Ikeda Y, Nishimura T, Hattori A. Establishment of a model experiment system to elucidate the mechanism by which Zn–protoporphyrin IX is formed in nitrite-free dry-cured ham. Meat Sci 2004; 68:313-7. [DOI: 10.1016/j.meatsci.2004.03.014] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2003] [Revised: 03/23/2004] [Accepted: 03/23/2004] [Indexed: 10/26/2022]
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Wakamatsu J, Nishimura T, Hattori A. A Zn–porphyrin complex contributes to bright red color in Parma ham. Meat Sci 2004; 67:95-100. [DOI: 10.1016/j.meatsci.2003.09.012] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2003] [Revised: 09/23/2003] [Accepted: 09/23/2003] [Indexed: 10/26/2022]
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Hattori A, Wakamatsu J, Ishii T, Kuwahara K, Tatsumi R. Characterization of a novel 550-kDa protein in skeletal muscle of chick embryo. Biochim Biophys Acta 1995; 1245:201-6. [PMID: 7492578 DOI: 10.1016/0304-4165(95)00097-u] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Some characteristics of a novel 550-kDa protein which is abundant in skeletal muscle tissues at an early stage of the chick embryo, and localized in the peripheries of adult muscle fibers and at the Z-disks of isolated myofibrils, was investigated. A cosedimentation experiment and solid phase immunoabsorbent assay showed that the 550-kDa protein binds directly to F-actin. Therefore, it is concluded that the 550-kDa protein is a novel actin-binding protein. The 550-kDa protein was also interacted with alpha-actinin, laminin, fibronectin and Type IV collagen. Reactions with several kinds of lectin revealed that the 550-kDa protein is a glycoprotein containing oligosaccharides. Electron microscopic observation of negatively stained 550-kDa protein showed that native 550-kDa protein molecules are particles with an average diameter of 26.5 nm, but those particles treated with ethanol/ether are filamentous structures. These results suggest that the 550-kDa protein in the cytoplasma of unorganized skeletal muscle tissues exists as lipid-protein complex. Consequently, the 550-kDa protein may play an important role in the binding of myofibrils to the basal lamina by interaction with F-actin, alpha-actinin, laminin, fibronectin or Type IV collagen.
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Affiliation(s)
- A Hattori
- Department of Animal Science, Faculty of Agriculture, Hokkaido University, Japan
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Hattori A, Wakamatsu J, Ishii T, Kuwahara K, Tatsumi R. A novel 550-kDa protein in skeletal muscle of chick embryo: purification and localization. Biochim Biophys Acta 1995; 1245:191-200. [PMID: 7492577 DOI: 10.1016/0304-4165(95)00096-t] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
We have found a novel protein with a molecular mass of 550 kDa on SDS-polyacrylamide gels, which is abundant in skeletal muscle tissues at an early stage of chick embryonic development. The 550-kDa protein decreased with the progress of development, and only a slight amount of the protein was present in adult chicken skeletal muscle. The 550-kDa protein was purified from the cytoplasm of 18 day embryos by a procedure including ultracentrifugation and gel filtration. The purified 550-kDa protein was essentially free of contaminants as judged by SDS-PAGE. By immunofluorescence and immunoelectron microscopy using the antibody raised against the 550-kDa protein, this protein was shown to be localized in the peripheries of adult muscle fibers and at the Z-disks of isolated myofibrils. These findings have led us to conclude that the 550-kDa protein is a novel myofibrillar protein in chicken skeletal muscle.
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Affiliation(s)
- A Hattori
- Department of Animal Science, Faculty of Agriculture, Hokkaido University, Japan
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Takahashi M, Sakamoto Y, Kojima R, Wakamatsu J. [Diagnosis of cancer with magnetic resonance imaging (MRI)]. Gan No Rinsho 1988; 34:1237-46. [PMID: 3172483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Following a brief review of the history of magnetic resonance imaging (MRI), advantages and disadvantages of MRI are discussed in the diagnosis of malignant tumors of the various parts of the body. The advantages include high contrast resolution, no artifacts from the bones, and arbitrary imaging planes obtainable in multiple slices, whereas disadvantages include no signals from calcifications and prolonged imaging time. The roles of MRI were discussed in relation to detection of early cancers, extent of the lesions, histologic diagnosis and monitoring of treatments. Early diagnosis of tumors is successful in the central nervous system, whereas it is not accomplished in other parts of the body. Extent of the tumors or staging of the tumors can be accomplished to excellent advantage, but signal intensity is often not useful for differential diagnosis.
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Affiliation(s)
- M Takahashi
- Dept. of Radiology, School of Med., Kumamoto Univ
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