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Decreased incidence followed by comeback of pediatric infections during the COVID‑19 pandemic in Japan

World Journal of Pediatrics 2022年第8期18卷 564-567页

作者： Cyrus Ghaznavi haruka sakamoto Takayuki Kawashima Sayaka Horiuchi Masahiro Ishikane Sarah Krull Abe Daisuke Yoneoka Akifumi Eguchi Yuta Tanoue Masahiro Hashizume Shuhei Nomura Department of Health Policy and Management School of MedicineKeio University35 ShinanomachiShinjuku-kuTokyo 160-8582Japan Medical Education Program Washington University School of Medicine in St.LouisSaint LouisUSA Department of Global Health Policy Graduate School of MedicineThe University of TokyoTokyoJapan Tokyo Foundation for Policy Research TokyoJapan Department of Hygiene and Public Health Tokyo Women’s Medical UniversityTokyoJapan Department of Mathematical and Computing Science Tokyo Institute of TechnologyTokyoJapan Center for Birth Cohort Studies University of YamanashiYamanashiJapan Disease Control and Prevention Center National Center for Global Health and MedicineTokyoJapan Division of Prevention National Cancer Center Institute for Cancer ControlTokyoJapan Infectious Disease Surveillance Center National Institute of Infectious DiseasesTokyoJapan Department of Sustainable Health Science Center for Preventive Medical SciencesChiba UniversityChibaJapan Institute for Business and Finance Waseda UniversityTokyoJapan

During the coronavirus disease 2019(COVID-19)pandemic,the Japanese government implemented several infection control measures,such as states of emergency(SoE)and school closures,and encouraged universal masking and hand *** activity restrictions and improved hygiene were found to be associated with declines in the incidence of infuenza during the 2019–2020 winter season[1].Prior studies have found that the incidence of seven pediatric infections,such as pharyngoconjunctivitis and varicella,decreased during and after the school closures in Japan[2].As activity restrictions continue to be lifted,there is growing concern that pediatric infections may suddenly return given that the pool of susceptible children increased during the pandemic[3].In this study,we use national infectious disease sentinel data from January 2012 to October 2021 to assess changes in the reported number of pediatric infections in Japan during the COVID-19 *** hypothesize that the reporting of many infectious diseases decreased during the early stages of the pandemic but ultimately returned to normal when activity restrictions were lifted.

关键词： closure return suddenly

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Polyvinyl alcohol–potassium iodide gel probe to monitor the distribution of reactive species generation around atmospheric-pressure plasma jet

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Plasma Science and Technology 2023年第3期25卷 78-86页

作者： Trung Nguyen TRAN Min HU Tomohiro OGASAWARA Yuki IWATA haruka SUZUKI Jin sakamoto Masafumi AKIYOSHI Hirotaka TOYODA Hiroto MATSUURA Department of Quantum and Radiation Engineering Osaka Prefecture University Department of Electronics Nagoya University Faculty of Chemistry Materials and BioengineeringKansai University Department of Quantum and Radiation Engineering Osaka Metropolitan University

This study proposes polyvinyl alcohol–potassium iodide(PVA–KI)as a novel gel chemical *** probe uses the reactions among PVA,KI,water,borax,and oxidative species to visualize the distribution of reactive *** method provides information regarding the distribution of reactive species by coloration on the gel *** effects of the surrounding gas phase on the distribution and diffusion of the reactive species are also investigated using the PVA–KI gel ***,the relationship between the irradiation distance and reactive species diffusion is determined on the surface of the PVA–KI probe with and without plastic *** the irradiation distance appropriately leads to an increase in the modified area as detected by the PVA–KI gel probe *** relative concentration distributions of the reactive species are also obtained from visualized color distributions measured using a ***,reactive species generation by long-scale line plasma is confirmed by the color reaction on the PVA–KI gel surface,with a greater area being covered by an atmospheric-pressure pulsed microwave line plasma source.

关键词： atmospheric-pressure plasma jet(APPJ) PVA–KI gel chemical probe argon plasma jets

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<i>α</i>-Mangostin Promotes DAF-16-Mediated Thermotolerance in <i>Caenorhabditis elegans</i>

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Food and Nutrition Sciences 2018年第6期9卷 693-702页

作者： Nattapong Thammawong haruka Takahashi Takaya Sugawara Kazuichi sakamoto Graduate School of Life and Environmental Sciences University of Tsukuba Tsukuba Japan

Garcinia mangostana, commonly known as mangosteen, is a tropical fruit with a reddish-purple pericarp. In Southeast Asia, the pericarp has traditionally been used as a medicine to treat various diseases, including inflammation, wounds, and bacterial infections, as well as aging. α-mangostin is an abundant xanthone in the pericarp, and is thought to play a critical role in the medicinal effects of mangosteens. Previous studies have demonstrated numerous beneficial effects of α-mangostin, such as cytotoxicity in cancer cells. However, the effects of this xanthone in in vivo have not yet been studied. In the current study, C. elegans was used to test the in vivo effects of α-mangostin using several bioassays, including fat accumulation, pharyngeal movement (pumping) and heat-stress assays. Quantitative real time PCR (qRT-PCR) was also used to examine the expression of heat shock proteins. The results revealed that α-mangostin appeared to cause an increase in fat accumulation, which correlated with an increase in pharyngeal movement. The thrashing movement of the worms after heat stress also showed a correlation with an increase in heat shock protein mRNA expression.

关键词： Mangosteen α-Mangostin Thermotolerance Caenorhabditis elegans DAF-16

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