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Your search keyword '"Tsurudome, Masato"' showing total 12 results
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12 results on '"Tsurudome, Masato"'

1. Effects of Alkaline Solutions on the Structure and Function of Influenza A Virus.

Author

Seguchi, Manato, Yamaguchi, Seiji, Tanaka, Mamoru, Mori, Yukihiro, Tsurudome, Masato, and Ito, Morihiro

Subjects
ALKALINE solutions, INFLUENZA A virus, ELECTRON microscopes, INFLUENZA viruses, VIRAL proteins
Abstract

Influenza A virus (IAV) infection contributes to high annual morbidity and mortality, thus necessitating measures aimed at protecting against the disease. Alcohol-based disinfectants are commonly used to inactivate IAV, but they have several undesirable properties. In search of other means which would inactivate IAV, we focused on the effect of alkaline solutions on IAV. We found the viral infectivity remarkably decreased with treatment of an alkaline solution at pH 12.0 for 1 min, where destruction of the viral spikes was observed using an electron microscope. A more detailed examination revealed that the infectivity of IAV was remarkedly reduced by brief treatment with the alkaline solution at pH 11.75 or above, most likely due to the degradation of viral hemagglutinin protein. These results show that at a high pH, the haemagglutinin protein is degraded, resulting in very rapid inactivation of IAV. [ABSTRACT FROM AUTHOR]

Published
2024
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10. Evaluation of Japanese university students' perception of smoking, interest in quitting, and smoking behavior: An examination and public health challenges during the COVID-19 pandemic

Author

Aoike, Makoto, primary, Mori, Yukihiro, additional, Hotta, Kiyoshi, additional, Shigeno, Yukihiro, additional, Aoyama, Yuka, additional, Tanaka, Mamoru, additional, Kouzai, Hana, additional, Kawamura, Hatsumi, additional, Tsurudome, Masato, additional, and Ito, Morihiro, additional

Published
2022
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12. University students' living conditions during the COVID-19 pandemic and predictors of their subjective health views: A cross-sectional survey.

Author

Hotta K, Mori Y, Aoike M, Shigeno Y, Aoyama Y, Tanaka M, Kozai H, Kawamura H, Tsurudome M, and Ito M

Subjects
Humans, Cross-Sectional Studies, Diagnostic Self Evaluation, Pandemics, Social Conditions, Universities, Students, COVID-19 epidemiology
Abstract

This study aimed to explore the factors influencing subjective health views based on the living conditions and concerns of university students during the coronavirus infection 2019 (COVID-19) pandemic. From March to April 2021, a questionnaire survey was administered to 8,547 Japanese university students, and logistic regression analysis was used to explore factors related to subjective health views. The results showed that satisfaction with quality of sleep (OR = 2.651, 95% Cl 2.370-2.966,p < 0.001), satisfaction with university life (OR = 2.486, 95%Cl 2.215-2.789, p < 0.001), satisfaction with diet (OR = 1.849, 95% CI: 1.496-2.285, p < 0.001), regular exercise (OR = 1.759, 95% CI: 1.594-1.941, p < 0.001), consciousness of nutritional balance (OR = 1.276, 95% CI: 1.147-1.420,p < 0.001), eating breakfast every day (OR = 1.247, 95% CI: 1.121-1.387, p < 0.001), and consuming soft drinks at least once a week (OR = 0.865, 95% CI: 0.755-0.966, p = 0.010) were positive factors for subjective views of health. On the other hand, anxiety about whether the necessary credits can be obtained (OR = 0.885, 95% CI: 0.799-0.980, p = 0.019), infection from minimal outings (OR = 0.881, 95% CI: 0.794-0.976, p = 0.016) building and maintaining friendships on campus (OR = 0.867, 95% CI: 0.767-0.980, p = 0.023), and being able to continue working (OR = 0.713, 95% CI: 0.640-0.795, p < 0.001) were identified as negative factors. To ensure a healthy university life during the COVID-19 pandemic or future pandemic, supports tailored to students' living conditions and measures to address their anxieties are required.

Published
2023
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