LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Your last searches

  1. AU="Miyake, Yukiko"
  2. AU="Masuda, T"

Search results

Result 1 - 9 of total 9

Search options

  1. Article ; Online: Secondary household transmission of SARS-CoV-2: a case-control study on factors associated with reduced transmission risk.

    Inaba, Masato / Miyake, Yukiko / Yasuda, Kazutaka

    International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases

    2023  Volume 137, Page(s) 4–8

    Abstract: Objectives: This study aimed to identify factors deterring secondary household transmission of SARS-CoV-2 from SARS-CoV-2-positive cohabitants.: Methods: A case-control study was conducted with 272 healthcare workers in close contact with SARS-CoV-2- ... ...

    Abstract Objectives: This study aimed to identify factors deterring secondary household transmission of SARS-CoV-2 from SARS-CoV-2-positive cohabitants.
    Methods: A case-control study was conducted with 272 healthcare workers in close contact with SARS-CoV-2-positive cohabitants. Logistic regression modeling was employed to determine the factors independently associated with secondary household transmission.
    Results: A SARS-CoV-2 infection within the past 6 months was the most protective factor against secondary household transmission (adjusted odds ratio = 0.07, 95% CI: 0.01-0.61, P <0.05). Home isolation and older age of primary index case (7-12, ≥18 years) were also associated with a reduced risk. Both monovalent and bivalent messenger ribonucleic acid booster vaccinations exhibited potential protective tendencies but were not statistically significant. Additionally, bivalent vaccines did not demonstrate a clear advantage over monovalent vaccines.
    Conclusion: A recent history of SARS-CoV-2 infection, home isolation of positive cohabitants, and older age of primary index cases were positively associated with a reduced risk of secondary household transmission. Regarding booster vaccinations, data from a single center with a limited sample size may not capture all statistically significant differences, necessitating broader studies.
    MeSH term(s) Humans ; SARS-CoV-2 ; COVID-19/epidemiology ; COVID-19/prevention & control ; Case-Control Studies ; Health Personnel ; Immunization, Secondary
    Language English
    Publishing date 2023-10-01
    Publishing country Canada
    Document type Journal Article
    ZDB-ID 1331197-9
    ISSN 1878-3511 ; 1201-9712
    ISSN (online) 1878-3511
    ISSN 1201-9712
    DOI 10.1016/j.ijid.2023.09.019
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Evaluation of physical and psychological status of health care workers infected with COVID-19 during a hospital outbreak in Japan.

    Kameyama, Koji / Mizutani, Kosuke / Miyake, Yukiko / Iwase, Toma / Mizutani, Yoshio / Yamada, Mikito / Ito, Yoshiki / Ishihara, Satoshi / Deguchi, Takashi

    Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy

    2022  Volume 29, Issue 2, Page(s) 126–130

    Abstract: Purpose: COVID-19 causes physical and psychological impacts on health care workers (HCWs), especially when it occurs during an outbreak. As there are few reports on outcomes of HCWs infected with COVID-19 during a hospital outbreak, we investigated the ... ...

    Abstract Purpose: COVID-19 causes physical and psychological impacts on health care workers (HCWs), especially when it occurs during an outbreak. As there are few reports on outcomes of HCWs infected with COVID-19 during a hospital outbreak, we investigated the physical and psychological impacts on HCWs infected with COVID-19 during an outbreak in our hospital.
    Methods: During the outbreak in our hospital, 231 people were infected with COVID-19 including patients, HCWs and their families. Among them, 83 HCWs were enrolled in this study. Current quality of life (QOL) was assessed with the EuroQol-visual analogue scales (EQ-VAS), and motivation to keep on working was evaluated by a 10-point analogue scale. Physiological recovery rates including return to work (RTW) period were also analyzed.
    Results: One nurse quit work due to anxiety regarding re-infection with COVID-19. The median period to RTW from the diagnosis was 14.0 (12.0-17.0) days. Motivation to keep on working was slightly reduced, and the EQ-VAS was 75.0 (65.0-83.6). There were no significant differences in QOL and motivation between male and female HCWs, nurses and other HCWs, treatment and non-treatment group, and supplemental and non-supplemental oxygen group. The most frequent persistent symptoms at 1,3 and 6 months after infection were anosmia followed by fatigue.
    Conclusion: Although QOL and motivation to keep on working were slightly reduced, only one HCW quit work. No severe persistent symptoms were observed, and the RTW period was relatively short.
    MeSH term(s) Humans ; Male ; Female ; COVID-19/epidemiology ; Quality of Life ; SARS-CoV-2 ; Japan/epidemiology ; Health Personnel ; Hospitals ; Disease Outbreaks
    Language English
    Publishing date 2022-10-12
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1355399-9
    ISSN 1437-7780 ; 1341-321X
    ISSN (online) 1437-7780
    ISSN 1341-321X
    DOI 10.1016/j.jiac.2022.10.003
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article: A cell wall protein (YqgA) is genetically related to the cell wall-degrading dl-endopeptidases in Bacillus subtilis

    Hashimoto, Masayuki / Fujikura, Kentaro / Miyake, Yukiko / Higashitsuji, Yuhei / Kiriyama, Yuuka / Tanaka, Tatsuhito / Yamamoto, Hiroki / Sekiguchi, Junichi

    Bioscience, biotechnology, and biochemistry. 2014 Aug. 3, v. 78, no. 8

    2014  

    Abstract: The Gram-positive bacterium Bacillus subtilis has a thick cell wall. The cell wall contains various proteins, both for secretion and for peptidoglycan (PG) maintenance. Penicillin-binding proteins for PG synthesis, PG hydrolases (autolysins), and ... ...

    Abstract The Gram-positive bacterium Bacillus subtilis has a thick cell wall. The cell wall contains various proteins, both for secretion and for peptidoglycan (PG) maintenance. Penicillin-binding proteins for PG synthesis, PG hydrolases (autolysins), and regulator proteins for the autolysins are the known components of the PG maintenance system. YqgA was identified as an abundant protein attached to the cell wall of B. subtilis through a proteomics analysis. The YqgA protein was localized at cell division sites during the transition period between the exponential and the stationary phases. YqgA localization was affected by mutations in the dl-endopeptidases (DLEPases), which are the autolysins involved in cell morphogenesis. Furthermore, yqgA mutations on a background of defective DLEPases led to delays in cell growth and cell morphological changes. These results demonstrate that yqgA is genetically related to the genes encoding DLEPases involved in cell morphogenesis.
    Keywords Bacillus subtilis ; Gram-positive bacteria ; biotechnology ; cell division ; cell growth ; cell walls ; gametolysin ; morphogenesis ; peptidoglycans ; proteomics ; secretion ; structural proteins
    Language English
    Dates of publication 2014-0803
    Size p. 1428-1434.
    Publishing place Taylor & Francis
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 1106450-x
    ISSN 1347-6947 ; 0916-8451
    ISSN (online) 1347-6947
    ISSN 0916-8451
    DOI 10.1080/09168451.2014.923294
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  4. Article ; Online: A cell wall protein (YqgA) is genetically related to the cell wall-degrading dl-endopeptidases in Bacillus subtilis.

    Hashimoto, Masayuki / Fujikura, Kentaro / Miyake, Yukiko / Higashitsuji, Yuhei / Kiriyama, Yuuka / Tanaka, Tatsuhito / Yamamoto, Hiroki / Sekiguchi, Junichi

    Bioscience, biotechnology, and biochemistry

    2014  Volume 78, Issue 8, Page(s) 1428–1434

    Abstract: The Gram-positive bacterium Bacillus subtilis has a thick cell wall. The cell wall contains various proteins, both for secretion and for peptidoglycan (PG) maintenance. Penicillin-binding proteins for PG synthesis, PG hydrolases (autolysins), and ... ...

    Abstract The Gram-positive bacterium Bacillus subtilis has a thick cell wall. The cell wall contains various proteins, both for secretion and for peptidoglycan (PG) maintenance. Penicillin-binding proteins for PG synthesis, PG hydrolases (autolysins), and regulator proteins for the autolysins are the known components of the PG maintenance system. YqgA was identified as an abundant protein attached to the cell wall of B. subtilis through a proteomics analysis. The YqgA protein was localized at cell division sites during the transition period between the exponential and the stationary phases. YqgA localization was affected by mutations in the dl-endopeptidases (DLEPases), which are the autolysins involved in cell morphogenesis. Furthermore, yqgA mutations on a background of defective DLEPases led to delays in cell growth and cell morphological changes. These results demonstrate that yqgA is genetically related to the genes encoding DLEPases involved in cell morphogenesis.
    MeSH term(s) Bacillus subtilis/cytology ; Bacillus subtilis/enzymology ; Bacillus subtilis/genetics ; Bacillus subtilis/metabolism ; Bacterial Proteins/genetics ; Bacterial Proteins/metabolism ; Cell Proliferation ; Cell Wall/metabolism ; Endopeptidases/genetics ; Gene Expression Regulation, Bacterial ; Intracellular Space/metabolism ; Mutation ; Protein Transport ; Sequence Homology, Nucleic Acid
    Chemical Substances Bacterial Proteins ; Endopeptidases (EC 3.4.-)
    Language English
    Publishing date 2014
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1106450-x
    ISSN 1347-6947 ; 0916-8451
    ISSN (online) 1347-6947
    ISSN 0916-8451
    DOI 10.1080/09168451.2014.923294
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Possible contact transmission of severe acute respiratory coronavirus virus 2 (SARS-CoV-2) in healthcare settings in Japan, 2020-2021.

    Kurosu, Hitomi / Watanabe, Kana / Kurosawa, Katsuki / Nakashita, Manami / Kasamatsu, Ayu / Nakamura, Haruna / Yamagishi, Takuya / Mitsuhashi, Yuu / Yano, Koichi / Hachiya, Yuka / Odani, Toshio / Amishima, Masaru / Nekomiya, Yumiko / Matsui, Takeshi / Yamada, Mayumi / Kamiyama, Kenji / Kikuchi, Takefumi / Takadate, Kumiko / Watanabe, Chizuko /
    Furusawa, Yushin / Kase, Katsuichi / Hyodo, Yuko / Suzuki, Hiromi / Matsunaga, Tamotsu / Hori, Hiroyuki / Kanoh, Mio / Miyake, Yukiko / Yamada, Mikito / Kobayashi, Yusuke / Sugai, Motoyuki / Suzuki, Motoi / Sunagawa, Tomimasa

    Infection control and hospital epidemiology

    2021  Volume 43, Issue 9, Page(s) 1296–1298

    MeSH term(s) COVID-19 ; Delivery of Health Care ; Health Facilities ; Humans ; Japan/epidemiology ; SARS-CoV-2 ; Virus Diseases
    Language English
    Publishing date 2021-05-27
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 639378-0
    ISSN 1559-6834 ; 0195-9417 ; 0899-823X
    ISSN (online) 1559-6834
    ISSN 0195-9417 ; 0899-823X
    DOI 10.1017/ice.2021.254
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article: The major and minor wall teichoic acids prevent the sidewall localization of vegetative dl-endopeptidase LytF in Bacillus subtilis

    Yamamoto, Hiroki / Miyake, Yukiko / Hisaoka, Miharu / Kurosawa, Shin-ichirou / Sekiguchi, Junichi

    Molecular microbiology. 2008 Oct., v. 70, no. 2

    2008  

    Abstract: Cell separation in Bacillus subtilis depends on specific activities of dl-endopeptidases CwlS, LytF and LytE. Immunofluorescence microscopy (IFM) indicated that the localization of LytF depended on its N-terminal LysM domain. In addition, we revealed ... ...

    Abstract Cell separation in Bacillus subtilis depends on specific activities of dl-endopeptidases CwlS, LytF and LytE. Immunofluorescence microscopy (IFM) indicated that the localization of LytF depended on its N-terminal LysM domain. In addition, we revealed that the LysM domain efficiently binds to peptidoglycan (PG) prepared by chemically removing wall teichoic acids (WTAs) from the B. subtilis cell wall. Moreover, increasing amounts of the LysM domain bound to TagB- or TagO-depleted cell walls. These results strongly suggested that the LysM domain specifically binds to PG, and that the binding may be prevented by WTAs. IFM with TagB-, TagF- or TagO-reduced cells indicated that LytF-6xFLAG was observed not only at cell separation site and poles but also as a helical pattern along the sidewall. Moreover, we found that LytF was localizable on the whole cell surface in TagB-, TagF- or TagO-depleted cells. These results strongly suggest that WTAs inhibit the sidewall localization of LytF. Furthermore, the helical LytF localization was observed on the lateral cell surface in MreB-depleted cells, suggesting that cell wall modification by WTAs along the sidewall might be governed by an actin-like cytoskeleton homologue, MreB.
    Language English
    Dates of publication 2008-10
    Size p. 297-310.
    Publisher Blackwell Publishing Ltd
    Publishing place Oxford, UK
    Document type Article
    ZDB-ID 619315-8
    ISSN 1365-2958 ; 0950-382X
    ISSN (online) 1365-2958
    ISSN 0950-382X
    DOI 10.1111/j.1365-2958.2008.06397.x
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  7. Article ; Online: The major and minor wall teichoic acids prevent the sidewall localization of vegetative DL-endopeptidase LytF in Bacillus subtilis.

    Yamamoto, Hiroki / Miyake, Yukiko / Hisaoka, Miharu / Kurosawa, Shin-Ichirou / Sekiguchi, Junichi

    Molecular microbiology

    2008  Volume 70, Issue 2, Page(s) 297–310

    Abstract: Cell separation in Bacillus subtilis depends on specific activities of DL-endopeptidases CwlS, LytF and LytE. Immunofluorescence microscopy (IFM) indicated that the localization of LytF depended on its N-terminal LysM domain. In addition, we revealed ... ...

    Abstract Cell separation in Bacillus subtilis depends on specific activities of DL-endopeptidases CwlS, LytF and LytE. Immunofluorescence microscopy (IFM) indicated that the localization of LytF depended on its N-terminal LysM domain. In addition, we revealed that the LysM domain efficiently binds to peptidoglycan (PG) prepared by chemically removing wall teichoic acids (WTAs) from the B. subtilis cell wall. Moreover, increasing amounts of the LysM domain bound to TagB- or TagO-depleted cell walls. These results strongly suggested that the LysM domain specifically binds to PG, and that the binding may be prevented by WTAs. IFM with TagB-, TagF- or TagO-reduced cells indicated that LytF-6xFLAG was observed not only at cell separation site and poles but also as a helical pattern along the sidewall. Moreover, we found that LytF was localizable on the whole cell surface in TagB-, TagF- or TagO-depleted cells. These results strongly suggest that WTAs inhibit the sidewall localization of LytF. Furthermore, the helical LytF localization was observed on the lateral cell surface in MreB-depleted cells, suggesting that cell wall modification by WTAs along the sidewall might be governed by an actin-like cytoskeleton homologue, MreB.
    MeSH term(s) Bacillus subtilis/enzymology ; Bacterial Proteins/genetics ; Bacterial Proteins/metabolism ; Blotting, Western ; Cell Wall/chemistry ; Cell Wall/enzymology ; Electrophoresis, Polyacrylamide Gel ; Endopeptidases/genetics ; Endopeptidases/metabolism ; Microscopy, Fluorescence ; Microscopy, Immunoelectron ; Peptidoglycan/metabolism ; Protein Binding ; Protein Structure, Tertiary ; Teichoic Acids/genetics ; Teichoic Acids/metabolism
    Chemical Substances Bacterial Proteins ; Peptidoglycan ; Teichoic Acids ; Endopeptidases (EC 3.4.-)
    Language English
    Publishing date 2008-10
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 619315-8
    ISSN 1365-2958 ; 0950-382X
    ISSN (online) 1365-2958
    ISSN 0950-382X
    DOI 10.1111/j.1365-2958.2008.06397.x
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article: Effect on blood pressure of daily lemon ingestion and walking.

    Kato, Yoji / Domoto, Tokio / Hiramitsu, Masanori / Katagiri, Takao / Sato, Kimiko / Miyake, Yukiko / Aoi, Satomi / Ishihara, Katsuhide / Ikeda, Hiromi / Umei, Namiko / Takigawa, Atsusi / Harada, Toshihide

    Journal of nutrition and metabolism

    2014  Volume 2014, Page(s) 912684

    Abstract: Background. Recent studies suggest that the daily intake of lemon (Citrus limon) has a good effect on health, but this has not been confirmed in humans. In our previous studies, it was observed that people who are conscious of their health performed more ...

    Abstract Background. Recent studies suggest that the daily intake of lemon (Citrus limon) has a good effect on health, but this has not been confirmed in humans. In our previous studies, it was observed that people who are conscious of their health performed more lemon intake and exercise. An analysis that took this into account was required. Methodology. For 101 middle-aged women in an island area in Hiroshima, Japan, a record of lemon ingestion efforts and the number of steps walked was carried out for five months. The change rates (Δ%) of the physical measurements, blood test, blood pressure, and pulse wave measured value during the observation period were calculated, and correlations with lemon intake and the number of steps walked were considered. As a result, it was suggested that daily lemon intake and walking are effective for high blood pressure because both showed significant negative correlation to systolic blood pressure Δ%. Conclusions. As a result of multiple linear regression analysis, it was possible that lemon ingestion is involved more greatly with the blood citric acid concentration Δ% and the number of steps with blood pressure Δ%, and it was surmised that the number of steps and lemon ingestion are related to blood pressure improvement by different action mechanisms.
    Language English
    Publishing date 2014-04-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2573563-9
    ISSN 2090-0732 ; 2090-0724
    ISSN (online) 2090-0732
    ISSN 2090-0724
    DOI 10.1155/2014/912684
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: [Effect of variation of lemon intake and walking in daily life on various indicators of muscle mass and blood biochemistry in menopausal middle-aged and elderly women].

    Sato, Kimiko / Domoto, Tokio / Hiramitsu, Masanori / Katagiri, Takao / Kato, Yoji / Miyake, Yukiko / Ishihara, Katsuhide / Umei, Namiko / Takigawa, Atsushi / Harada, Toshihide / Aoi, Satomi / Ikeda, Hiromi

    Nihon eiseigaku zasshi. Japanese journal of hygiene

    2013  Volume 69, Issue 1, Page(s) 39–48

    Abstract: Objectives: We examined the factors considered to change body composition and blood biochemistry indicators in menopausal middle-aged and elderly women. These changes result from exercise by walking as part of their daily activities and lemon ... ...

    Abstract Objectives: We examined the factors considered to change body composition and blood biochemistry indicators in menopausal middle-aged and elderly women. These changes result from exercise by walking as part of their daily activities and lemon consumption by women who live on the small islands of the Seto Inland Sea, Japan's largest citrus fruit (lemon)-producing region.
    Methods: Between September 2011 and March 2012, we recorded the daily lemon consumption and the number of steps taken by 101 middle-aged and elderly female lemon farmers. We also measured their body dimensions, body compositions, and blood pressure pulse wave velocity and conducted blood tests before and after the survey period. The results before and after the survey period were compared by the t-test and associations were determined on the basis of Pearson's correlation coefficient. Covariance structural analysis was carried out to determine causal associations.
    Results: From the results of covariance structure analysis, lemon intake did not have a direct impact on each item examined. The third item, i.e., "the factors related to arteriosclerosis," was affected indirectly via citric acid and fatigue, and anticoagulation was shown. The fourth item, i.e., "the factors related to maintenance of muscle mass," which is affected by menopausal years and the change in walking speed, was shown to be associated with the second item, i.e., "the factors related to lipid metabolism." Menopausal years affected the first, third and fourth items.
    Conclusions: Lemon intake did not have a direct impact on each item. Lemon has been shown to indirectly affect the third item through citric acid. Walking affected the second item, the level of total cholesterol, such as HDL cholesterol, through the fourth item. The importance of providing services that lead to sustained physical activity and a well-balanced metabolism between lipids and carbohydrates has been shown.
    MeSH term(s) Adult ; Aged ; Aged, 80 and over ; Basal Metabolism/physiology ; Body Composition/physiology ; Citrus ; Energy Intake/physiology ; Exercise/physiology ; Female ; Humans ; Japan ; Menopause ; Middle Aged ; Walking/physiology
    Language Japanese
    Publishing date 2013-01-27
    Publishing country Japan
    Document type English Abstract ; Journal Article
    ZDB-ID 604089-5
    ISSN 1882-6482 ; 0021-5082
    ISSN (online) 1882-6482
    ISSN 0021-5082
    DOI 10.1265/jjh.69.39
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top