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  1. Article: Magnesium and Vitamin D Deficiency as a Potential Cause of Immune Dysfunction, Cytokine Storm and Disseminated Intravascular Coagulation in covid-19 patients.

    DiNicolantonio, James J / O'Keefe, James H

    Missouri medicine

    2021  Volume 118, Issue 1, Page(s) 68–73

    Abstract: Magnesium and vitamin D each have the possibility of affecting the immune system and consequently ... the cytokine storm and coagulation cascade in COVID-19 infections. Vitamin D is important for reducing the risk ... of vitamin D for a healthy immune system has been known for decades, the benefits of magnesium has only ...

    Abstract Magnesium and vitamin D each have the possibility of affecting the immune system and consequently the cytokine storm and coagulation cascade in COVID-19 infections. Vitamin D is important for reducing the risk of upper respiratory tract infections and plays a role in pulmonary epithelial health. While the importance of vitamin D for a healthy immune system has been known for decades, the benefits of magnesium has only recently been elucidated. Indeed, magnesium is important for activating vitamin D and has a protective role against oxidative stress. Magnesium deficiency increases endothelial cell susceptibility to oxidative stress, promotes endothelial dysfunction, reduces fibrinolysis and increases coagulation. Furthermore, magnesium deficient animals and humans have depressed immune responses, which, when supplemented with magnesium, a partial or near full reversal of the immunodeficiency occurs. Moreover, intracellular free magnesium levels in natural killer cells and CD8 killer T cells regulates their cytotoxicity. Considering that magnesium and vitamin D are important for immune function and cellular resilience, a deficiency in either may contribute to cytokine storm in the novel coronavirus 2019 (COVID-19) infection.
    MeSH term(s) Animals ; CD8-Positive T-Lymphocytes/drug effects ; COVID-19/complications ; COVID-19/diagnosis ; COVID-19/drug therapy ; COVID-19/virology ; Cytokine Release Syndrome/etiology ; Disseminated Intravascular Coagulation/etiology ; Humans ; Immune System Diseases/etiology ; Killer Cells, Natural/drug effects ; Magnesium/administration & dosage ; Magnesium/pharmacology ; Magnesium/therapeutic use ; Magnesium Deficiency/complications ; Oxidative Stress/drug effects ; SARS-CoV-2/drug effects ; SARS-CoV-2/genetics ; Vitamin D/administration & dosage ; Vitamin D/pharmacology ; Vitamin D/therapeutic use ; Vitamin D Deficiency/complications ; Vitamins/administration & dosage ; Vitamins/pharmacology ; Vitamins/therapeutic use
    Chemical Substances Vitamins ; Vitamin D (1406-16-2) ; Magnesium (I38ZP9992A)
    Language English
    Publishing date 2021-01-31
    Publishing country United States
    Document type Journal Article
    ZDB-ID 427362-x
    ISSN 0026-6620
    ISSN 0026-6620
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Vitamin D and cardiovascular health.

    Lavie, Carl J / Dinicolantonio, James J / Milani, Richard V / O'Keefe, James H

    Circulation

    2013  Volume 128, Issue 22, Page(s) 2404–2406

    MeSH term(s) Coronary Disease/drug therapy ; Coronary Disease/epidemiology ; Coronary Disease/metabolism ; Female ; Humans ; Hypertension/drug therapy ; Hypertension/epidemiology ; Hypertension/metabolism ; Middle Aged ; Risk Factors ; Vitamin D/metabolism ; Vitamin D/therapeutic use ; Vitamin D Deficiency/drug therapy ; Vitamin D Deficiency/epidemiology ; Vitamin D Deficiency/metabolism
    Chemical Substances Vitamin D (1406-16-2)
    Language English
    Publishing date 2013-11-26
    Publishing country United States
    Document type Case Reports ; Journal Article ; Review
    ZDB-ID 80099-5
    ISSN 1524-4539 ; 0009-7322 ; 0069-4193 ; 0065-8499
    ISSN (online) 1524-4539
    ISSN 0009-7322 ; 0069-4193 ; 0065-8499
    DOI 10.1161/CIRCULATIONAHA.113.002902
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Can vitamin D deficiency break your heart?

    O'Keefe, James H / Patil, Harshal R / Lavie, Carl J

    Mayo Clinic proceedings

    2012  Volume 87, Issue 4, Page(s) 412–3; author reply 413

    MeSH term(s) Depression/blood ; Female ; Humans ; Male ; Vitamin D/analogs & derivatives
    Chemical Substances Vitamin D (1406-16-2)
    Language English
    Publishing date 2012-04-03
    Publishing country England
    Document type Letter ; Comment
    ZDB-ID 124027-4
    ISSN 1942-5546 ; 0025-6196
    ISSN (online) 1942-5546
    ISSN 0025-6196
    DOI 10.1016/j.mayocp.2011.12.013
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Medical Reminiscences of New York.

    O'Keefe, D C

    Atlanta medical and surgical journal

    2022  Volume 5, Issue 7, Page(s) 394–404

    Language English
    Publishing date 2022-07-11
    Publishing country United States
    Document type Journal Article
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: New York Correspondence.

    O'Keefe, D C

    Atlanta medical and surgical journal

    2022  Volume 5, Issue 1, Page(s) 49–60

    Language English
    Publishing date 2022-07-11
    Publishing country United States
    Document type Journal Article
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Medical Reminiscences of New York.

    O'Keefe, D C

    Atlanta medical and surgical journal

    2022  Volume 5, Issue 8, Page(s) 465–480

    Language English
    Publishing date 2022-07-11
    Publishing country United States
    Document type Journal Article
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Case of Difficult Diagnosis.

    O'Keefe, D C

    Atlanta medical and surgical journal

    2022  Volume 6, Issue 6, Page(s) 338–342

    Language English
    Publishing date 2022-07-11
    Publishing country United States
    Document type Journal Article
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Editorial and Miscellaneous.

    O'Keefe, D C

    Atlanta medical and surgical journal

    2022  Volume 4, Issue 11, Page(s) 700–706

    Language English
    Publishing date 2022-07-11
    Publishing country United States
    Document type Journal Article
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Medical Reminiscences of New York.

    O'Keefe, D C

    Atlanta medical and surgical journal

    2022  Volume 5, Issue 5-6, Page(s) 279–288

    Language English
    Publishing date 2022-07-11
    Publishing country United States
    Document type Journal Article
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Book: The principles and practice of nutritional support

    O'Keefe, Stephen J. D.

    2015  

    Author's details Stephen J.D. O'Keefe
    Language English
    Size VI, 288 S. : Ill., graph. Darst.
    Publisher Springer
    Publishing place New York u.a.
    Publishing country United States
    Document type Book
    HBZ-ID HT018654067
    ISBN 978-1-4939-1778-5 ; 9781493917792 ; 1-4939-1778-1 ; 149391779X
    Database Catalogue ZB MED Nutrition, Environment, Agriculture

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