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  1. Article ; Online: Insights into the enigma of oral streptococci in carcinogenesis.

    Senthil Kumar, Sangeetha / Johnson, Michael D L / Wilson, Justin E

    Microbiology and molecular biology reviews : MMBR

    2024  , Page(s) e0009523

    Abstract: SUMMARYThe ... ...

    Abstract SUMMARYThe genus
    Language English
    Publishing date 2024-03-20
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 1376131-6
    ISSN 1098-5557 ; 1070-6275 ; 1092-2172
    ISSN (online) 1098-5557 ; 1070-6275
    ISSN 1092-2172
    DOI 10.1128/mmbr.00095-23
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: mSphere

    Johnson, Michael D L

    mSphere

    2020  Volume 5, Issue 5

    Abstract: The inaugural Black In Microbiology Week (#BlackInMicro) is 28 September 2020 through 4 October 2020. Its mission is to "showcase the presence and accomplishments of Black microbiologists from around the globe, connect Black microbiologists with one ... ...

    Abstract The inaugural Black In Microbiology Week (#BlackInMicro) is 28 September 2020 through 4 October 2020. Its mission is to "showcase the presence and accomplishments of Black microbiologists from around the globe, connect Black microbiologists with one another and foster a sense of community among them, and provide a forum for the discussion of racial disparities in microbiology and its subfields." Participation in this event will happen primarily over Twitter through the hashtag #BlackInMicro and over Zoom through registration on the website https://blackinmicrobiology.org/ An additional mission of Black In Microbiology Week is to amplify black scientists. Today,
    MeSH term(s) African Continental Ancestry Group/genetics ; Betacoronavirus ; COVID-19 ; Coronavirus Infections/epidemiology ; Genetic Determinism ; Humans ; Microbiology ; Microbiota ; Pandemics ; Pneumonia, Viral/epidemiology ; Racism/prevention & control ; SARS-CoV-2
    Keywords covid19
    Language English
    Publishing date 2020-09-30
    Publishing country United States
    Document type Editorial
    ISSN 2379-5042
    ISSN (online) 2379-5042
    DOI 10.1128/mSphere.00966-20
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: The promise of copper ionophores as antimicrobials.

    O'Brien, Henrik / Davoodian, Talish / Johnson, Michael D L

    Current opinion in microbiology

    2023  Volume 75, Page(s) 102355

    Abstract: Antibiotic-resistant microbe-mediated deaths are a major worldwide health issue. Unfortunately, due to microbial adaptation to develop resistance, some antibiotics are nullified early in their usage, and worse, resistance is detected before they can even ...

    Abstract Antibiotic-resistant microbe-mediated deaths are a major worldwide health issue. Unfortunately, due to microbial adaptation to develop resistance, some antibiotics are nullified early in their usage, and worse, resistance is detected before they can even be prescribed. Copper's toxicity since antiquity against microbes at the host-pathogen interface offers a fascinating weapon to fight antimicrobial resistance. Here, we briefly review why copper is so effective, how drugs that work with copper are effective antimicrobials, and how compounds such as these could reinvigorate investment in antimicrobial development.
    MeSH term(s) Copper/pharmacology ; Ionophores ; Drug Resistance, Bacterial ; Anti-Infective Agents/pharmacology ; Anti-Bacterial Agents/pharmacology ; Anti-Bacterial Agents/therapeutic use
    Chemical Substances Copper (789U1901C5) ; Ionophores ; Anti-Infective Agents ; Anti-Bacterial Agents
    Language English
    Publishing date 2023-07-03
    Publishing country England
    Document type Journal Article ; Review ; Research Support, N.I.H., Extramural
    ZDB-ID 1418474-6
    ISSN 1879-0364 ; 1369-5274
    ISSN (online) 1879-0364
    ISSN 1369-5274
    DOI 10.1016/j.mib.2023.102355
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: mSphere of Influence: Hiring of Underrepresented Minority Assistant Professors in Medical School Basic Science Departments Has a Long Way To Go.

    Johnson, Michael D L

    mSphere

    2019  Volume 4, Issue 5

    Abstract: Michael D. L. Johnson is a molecular microbiologist observing the role of metals in bacterial biology. In this mSphere of Influence article, he discusses the impact that the paper "Decoupling of the minority PhD talent pool and assistant professor hiring ...

    Abstract Michael D. L. Johnson is a molecular microbiologist observing the role of metals in bacterial biology. In this mSphere of Influence article, he discusses the impact that the paper "Decoupling of the minority PhD talent pool and assistant professor hiring in medical school basic science departments in the US" by Kenneth D. Gibbs, Jr., Jacob Basson, Imam M. Xierali, and David A. Broniatowski (eLife 5:e21393, 2016, https://doi.org/10.7554/eLife.21393) had on him regarding hiring underrepresented minorities at research-intensive institutions and what he considers to be the next steps.
    MeSH term(s) Faculty/statistics & numerical data ; Faculty, Medical ; Humans ; Minority Groups ; Schools, Medical/statistics & numerical data
    Language English
    Publishing date 2019-09-18
    Publishing country United States
    Document type Journal Article
    ISSN 2379-5042
    ISSN (online) 2379-5042
    DOI 10.1128/mSphere.00599-19
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: National Summer Undergraduate Research Project (NSURP): A Virtual Research Experience to Deliver REAL (Retention, Equity, Access, and Life-Changing) Outcomes for Underrepresented Minorities in STEM.

    Johnson, Michael D L / Knox, Corey J

    Journal of microbiology & biology education

    2022  Volume 23, Issue 1

    Abstract: Summer undergraduate research experiences (SUREs) provide important onramps to secondary STEM graduate degrees and subsequent careers. Studies demonstrate that these experiences increase the likelihood of students advancing to a graduate-level STEM ... ...

    Abstract Summer undergraduate research experiences (SUREs) provide important onramps to secondary STEM graduate degrees and subsequent careers. Studies demonstrate that these experiences increase the likelihood of students advancing to a graduate-level STEM degree, positively impact STEM identity and confidence, and imbue a sense of professional belonging. In 2020, COVID-19 shutdowns eliminated many in-person SUREs. In response, we launched the National Summer Undergraduate Research Project (NSURP). While NSURP addressed an immediate need for a flexible research experience, we found that this model extends access to underrepresented minorities because it provides authentic research experiences for students who are unable to travel to a research location, and/or who have familial responsibilities that necessitate a flexible work model, and/or students facing financial challenges. What began as an emergency summer research program for undergraduates to address laboratory closures resulted in what we believe is a necessary and normalized addition to the undergraduate STEM training and preparation repertoire.
    Language English
    Publishing date 2022-04-04
    Publishing country United States
    Document type Journal Article
    ISSN 1935-7877
    ISSN 1935-7877
    DOI 10.1128/jmbe.00335-21
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: mSphere Highlights Black In Microbiology Week

    Johnson, Michael D. L.

    mSphere

    2020  Volume 5, Issue 5

    Abstract: ABSTRACT The inaugural Black In Microbiology Week (#BlackInMicro) is 28 September 2020 through 4 October 2020. Its mission is to “showcase the presence and accomplishments of Black microbiologists from around the globe, connect Black microbiologists with ...

    Abstract ABSTRACT The inaugural Black In Microbiology Week (#BlackInMicro) is 28 September 2020 through 4 October 2020. Its mission is to “showcase the presence and accomplishments of Black microbiologists from around the globe, connect Black microbiologists with one another and foster a sense of community among them, and provide a forum for the discussion of racial disparities in microbiology and its subfields.” Participation in this event will happen primarily over Twitter through the hashtag #BlackInMicro and over Zoom through registration on the website https://blackinmicrobiology.org/ . An additional mission of Black In Microbiology Week is to amplify black scientists. Today, mSphere does this by presenting two mSphere of Influence commentaries from Black In Microbiology co-lead organizers Ariangela J. Kozik (“mSphere of Influence: frameshift—a vision for human microbiome research” [mSphere 5:e00944-20, 2020, https://doi.org/10.1128/mSphere.00944-20 ]) and Kishana Taylor (“mSphere of Influence: that’s racist—COVID-19, biological determinism, and the limits of hypotheses” [mSphere 5:e00945-20, 2020, https://doi.org/10.1128/mSphere.00945-20 ]).
    Keywords covid19
    Language English
    Publisher American Society for Microbiology
    Publishing country us
    Document type Article ; Online
    ISSN 2379-5042
    DOI 10.1128/msphere.00966-20
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Mentoring across difference and distance: building effective virtual research opportunities for underrepresented minority undergraduate students in biological sciences.

    Knox, Corey J / Ab Latif, Faqryza M / Cornejo, Natasha R / Johnson, Michael D L

    mBio

    2023  Volume 15, Issue 1, Page(s) e0145223

    Abstract: Importance: Summer Research Experiences for Undergraduates (REUs) are established to provide platforms for interest in scientific research and as tools for eventual matriculation to scientific graduate programs. Unfortunately, the COVID-19 pandemic ... ...

    Abstract Importance: Summer Research Experiences for Undergraduates (REUs) are established to provide platforms for interest in scientific research and as tools for eventual matriculation to scientific graduate programs. Unfortunately, the COVID-19 pandemic forced the cancellation of in-person programs for 2020 and 2021, creating the need for alternative programming. The National Summer Undergraduate Research Project (NSURP) was created to provide a virtual option to REUs in microbiology to compensate for the pandemic-initiated loss of research opportunities. Although in-person REUs have since been restored, NSURP currently remains an option for those unable to travel to in-person programs in the first place due to familial, community, and/or monetary obligations. This study examines the effects of the program's first 3 years, documenting the students' experiences, and suggests future directions and areas of study related to the impact of virtual research experiences on expanding and diversifying science, technology, engineering, and mathematics.
    MeSH term(s) Humans ; Mentoring ; Pandemics ; Mentors ; Students ; Biological Science Disciplines
    Language English
    Publishing date 2023-12-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2557172-2
    ISSN 2150-7511 ; 2161-2129
    ISSN (online) 2150-7511
    ISSN 2161-2129
    DOI 10.1128/mbio.01452-23
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Media Matters, Examining Historical and Modern

    Sanchez-Rosario, Yamil / Johnson, Michael D L

    Frontiers in cellular and infection microbiology

    2021  Volume 11, Page(s) 613623

    Abstract: While some bacteria can thrive for generations in minerals and salts, many require lavish nutrition and specific chemicals to survive to the point where they can be observed and researched. Although researchers once boiled and rendered animal flesh and ... ...

    Abstract While some bacteria can thrive for generations in minerals and salts, many require lavish nutrition and specific chemicals to survive to the point where they can be observed and researched. Although researchers once boiled and rendered animal flesh and bones to obtain a media that facilitated bacterial growth, we now have a plethora of formulations and manufacturers to provide dehydrated flavors of historical, modified, and modern media. The purpose of media has evolved from simple isolation to more measured study. However, in some instances, media formulated to aid the metabolic, nutritional, or physical properties of microbes may not be best suited for studying pathogen behavior or resilience as a function of host interactions. While there have been comparative studies on handfuls of these media in
    MeSH term(s) Animals ; Bacterial Proteins ; Culture Media ; Pneumococcal Infections ; Streptococcus pneumoniae
    Chemical Substances Bacterial Proteins ; Culture Media
    Language English
    Publishing date 2021-03-23
    Publishing country Switzerland
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Review
    ZDB-ID 2619676-1
    ISSN 2235-2988 ; 2235-2988
    ISSN (online) 2235-2988
    ISSN 2235-2988
    DOI 10.3389/fcimb.2021.613623
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Crowdsourcing virtual summer research opportunities to support minorities in microbiology.

    Johnson, Michael D L / Baltrus, David A / Gardy, Jennifer

    Nature microbiology

    2020  Volume 5, Issue 11, Page(s) 1311–1313

    MeSH term(s) Biomedical Research/education ; Biomedical Research/organization & administration ; Crowdsourcing ; Education, Distance/organization & administration ; Humans ; Mentors ; Microbiology/education ; Minority Groups/education ; Seasons ; Students ; United States ; Universities
    Keywords covid19
    Language English
    Publishing date 2020-10-21
    Publishing country England
    Document type Journal Article
    ISSN 2058-5276
    ISSN (online) 2058-5276
    DOI 10.1038/s41564-020-00807-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: The role of CopA in Streptococcus pyogenes copper homeostasis and virulence.

    Dao, Tina H / Iverson, Amy / Neville, Stephanie L / Johnson, Michael D L / McDevitt, Christopher A / Rosch, Jason W

    Journal of inorganic biochemistry

    2023  Volume 240, Page(s) 112122

    Abstract: Maintenance of intracellular metal homeostasis during interaction with host niches is critical to the success of bacterial pathogens. To prevent infection, the mammalian innate immune response employs metal-withholding and metal-intoxication mechanisms ... ...

    Abstract Maintenance of intracellular metal homeostasis during interaction with host niches is critical to the success of bacterial pathogens. To prevent infection, the mammalian innate immune response employs metal-withholding and metal-intoxication mechanisms to limit bacterial propagation. The first-row transition metal ion copper serves critical roles at the host-pathogen interface and has been associated with antimicrobial activity since antiquity. Despite lacking any known copper-utilizing proteins, streptococci have been reported to accumulate significant levels of copper. Here, we report that loss of CopA, a copper-specific exporter, confers increased sensitivity to copper in Streptococcus pyogenes strain HSC5, with prolonged exposure to physiological levels of copper resulting in reduced viability during stationary phase cultivation. This defect in stationary phase survival was rescued by supplementation with exogeneous amino acids, indicating the pathogen had altered nutritional requirements during exposure to copper stress. Furthermore, S. pyogenes HSC5 ΔcopA was substantially attenuated during murine soft-tissue infection, demonstrating the importance of copper efflux at the host-pathogen interface. Collectively, these data indicate that copper can severely reduce the viability of stationary phase S. pyogenes and that active efflux mechanisms are required to survive copper stress in vitro and during infection.
    MeSH term(s) Mice ; Animals ; Copper/metabolism ; Virulence ; Streptococcus pyogenes/metabolism ; Bacterial Proteins/chemistry ; Homeostasis ; Gene Expression Regulation, Bacterial ; Mammals/metabolism
    Chemical Substances Copper (789U1901C5) ; Bacterial Proteins
    Language English
    Publishing date 2023-01-06
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 162843-4
    ISSN 1873-3344 ; 0162-0134
    ISSN (online) 1873-3344
    ISSN 0162-0134
    DOI 10.1016/j.jinorgbio.2023.112122
    Database MEDical Literature Analysis and Retrieval System OnLINE

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