LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 33

Search options

  1. Article ; Online: Immune Mechanisms in Cardiovascular Diseases Associated With Viral Infection.

    Gopal, Radha / Marinelli, Michael A / Alcorn, John F

    Frontiers in immunology

    2020  Volume 11, Page(s) 570681

    Abstract: Influenza virus infection causes 3-5 million cases of severe illness and 250,000-500,000 deaths worldwide annually. Although pneumonia is the most common complication associated with influenza, there are several reports demonstrating increased risk for ... ...

    Abstract Influenza virus infection causes 3-5 million cases of severe illness and 250,000-500,000 deaths worldwide annually. Although pneumonia is the most common complication associated with influenza, there are several reports demonstrating increased risk for cardiovascular diseases. Several clinical case reports, as well as both prospective and retrospective studies, have shown that influenza can trigger cardiovascular events including myocardial infarction (MI), myocarditis, ventricular arrhythmia, and heart failure. A recent study has demonstrated that influenza-infected patients are at highest risk of having MI during the first seven days of diagnosis. Influenza virus infection induces a variety of pro-inflammatory cytokines and chemokines and recruitment of immune cells as part of the host immune response. Understanding the cellular and molecular mechanisms involved in influenza-associated cardiovascular diseases will help to improve treatment plans. This review discusses the direct and indirect effects of influenza virus infection on triggering cardiovascular events. Further, we discussed the similarities and differences in epidemiological and pathogenic mechanisms involved in cardiovascular events associated with coronavirus disease 2019 (COVID-19) compared to influenza infection.
    MeSH term(s) Animals ; COVID-19/genetics ; COVID-19/immunology ; COVID-19/virology ; Cardiovascular Diseases/immunology ; Cardiovascular Diseases/virology ; Cytokines/genetics ; Cytokines/immunology ; Humans ; Influenza, Human/genetics ; Influenza, Human/immunology ; Influenza, Human/virology ; Orthomyxoviridae/genetics ; Orthomyxoviridae/physiology ; SARS-CoV-2/genetics ; SARS-CoV-2/physiology
    Chemical Substances Cytokines
    Keywords covid19
    Language English
    Publishing date 2020-10-22
    Publishing country Switzerland
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Review
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2020.570681
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: STAT1 regulates neutrophil gelatinase B-associated lipocalin induction in influenza-induced myocarditis.

    Constantinesco, Nicholas J / Srikanth, Sashwath / De Vito, Louis / Moras, Crystal / Ramasubramanian, Vennila / Chinnappan, Baskaran / Hartwick, Sean / Schwab, Kristina E / Wu, Yijen / Gopal, Radha

    Scientific reports

    2024  Volume 14, Issue 1, Page(s) 11124

    Abstract: Influenza is a significant public health and economic threat around the world. Epidemiological studies have demonstrated a close association between influenza pandemics and cardiovascular mortality. Moreover, it has been shown that there is a decrease in ...

    Abstract Influenza is a significant public health and economic threat around the world. Epidemiological studies have demonstrated a close association between influenza pandemics and cardiovascular mortality. Moreover, it has been shown that there is a decrease in cardiovascular mortality in high-risk patients following vaccination with the influenza vaccine. Here, we have investigated the role of anti-viral STAT1 signaling in influenza-induced myocarditis. Wild-type mice (C57BL/6) were infected with either influenza A/PR/8/34 or control, and cellular response and gene expression analysis from the heart samples were assessed 7 days later. The expression of interferon response genes STAT1, STAT2, Mx1, OASL2, ISG15, chemokines CCL2, CCL3, CXCL9 and CXCL10, and the frequency of neutrophils (CD45
    MeSH term(s) Animals ; Myocarditis/virology ; Myocarditis/metabolism ; Myocarditis/etiology ; Lipocalin-2/metabolism ; Lipocalin-2/genetics ; STAT1 Transcription Factor/metabolism ; STAT1 Transcription Factor/genetics ; Mice ; Orthomyxoviridae Infections/complications ; Orthomyxoviridae Infections/immunology ; Orthomyxoviridae Infections/metabolism ; Mice, Inbred C57BL ; Neutrophils/metabolism ; Neutrophils/immunology ; Male ; Mice, Knockout
    Language English
    Publishing date 2024-05-15
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-024-61953-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article: Immune Mechanisms in Cardiovascular Diseases Associated With Viral Infection

    Gopal, Radha / Marinelli, Michael A / Alcorn, John F

    Front Immunol

    Abstract: Influenza virus infection causes 3-5 million cases of severe illness and 250,000-500,000 deaths worldwide annually. Although pneumonia is the most common complication associated with influenza, there are several reports demonstrating increased risk for ... ...

    Abstract Influenza virus infection causes 3-5 million cases of severe illness and 250,000-500,000 deaths worldwide annually. Although pneumonia is the most common complication associated with influenza, there are several reports demonstrating increased risk for cardiovascular diseases. Several clinical case reports, as well as both prospective and retrospective studies, have shown that influenza can trigger cardiovascular events including myocardial infarction (MI), myocarditis, ventricular arrhythmia, and heart failure. A recent study has demonstrated that influenza-infected patients are at highest risk of having MI during the first seven days of diagnosis. Influenza virus infection induces a variety of pro-inflammatory cytokines and chemokines and recruitment of immune cells as part of the host immune response. Understanding the cellular and molecular mechanisms involved in influenza-associated cardiovascular diseases will help to improve treatment plans. This review discusses the direct and indirect effects of influenza virus infection on triggering cardiovascular events. Further, we discussed the similarities and differences in epidemiological and pathogenic mechanisms involved in cardiovascular events associated with coronavirus disease 2019 (COVID-19) compared to influenza infection.
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #918135
    Database COVID19

    Kategorien

  4. Article ; Online: Strong Anharmonicity-Induced Low Thermal Conductivity and High n-type Mobility in the Topological Insulator Bi

    Pathak, Riddhimoy / Dutta, Prabir / Srivastava, Ashutosh / Rawat, Divya / Gopal, Radha Krishna / Singh, Abhishek K / Soni, Ajay / Biswas, Kanishka

    Angewandte Chemie (International ed. in English)

    2022  Volume 61, Issue 41, Page(s) e202210783

    Abstract: Intrinsically low lattice thermal conductivity ( ... ...

    Abstract Intrinsically low lattice thermal conductivity (κ
    Language English
    Publishing date 2022-09-02
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202210783
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Zinc deficiency enhances sensitivity to influenza A associated bacterial pneumonia in mice.

    Gopal, Radha / Tutuncuoglu, Egemen / Bakalov, Veli / Wasserloos, Karla / Li, HuiHua / Lemley, David / DeVito, Louis J / Constantinesco, Nicholas J / Reed, Douglas S / McHugh, Kevin J / Chinnappan, Baskaran / Andreas, Alexis R / Maloy, Abigail / Bain, Daniel / Alcorn, John F / Pitt, Bruce R / Kaynar, Ata Murat

    Physiological reports

    2024  Volume 12, Issue 1, Page(s) e15902

    Abstract: Although zinc deficiency (secondary to malnutrition) has long been considered an important contributor to morbidity and mortality of infectious disease (e.g. diarrhea disorders), epidemiologic data (including randomized controlled trials with ... ...

    Abstract Although zinc deficiency (secondary to malnutrition) has long been considered an important contributor to morbidity and mortality of infectious disease (e.g. diarrhea disorders), epidemiologic data (including randomized controlled trials with supplemental zinc) for such a role in lower respiratory tract infection are somewhat ambiguous. In the current study, we provide the first preclinical evidence demonstrating that although diet-induced acute zinc deficiency (Zn-D: ~50% decrease) did not worsen infection induced by either influenza A (H1N1) or methicillin-resistant staph aureus (MRSA), Zn-D mice were sensitive to the injurious effects of superinfection of H1N1 with MRSA. Although the mechanism underlying the sensitivity of ZnD mice to combined H1N1/MRSA infection is unclear, it was noteworthy that this combination exacerbated lung injury as shown by lung epithelial injury markers (increased BAL protein) and decreased genes related to epithelial integrity in Zn-D mice (surfactant protein C and secretoglobins family 1A member 1). As bacterial pneumonia accounts for 25%-50% of morbidity and mortality from influenza A infection, zinc deficiency may be an important pathology component of respiratory tract infections.
    MeSH term(s) Animals ; Mice ; Influenza A Virus, H1N1 Subtype ; Malnutrition ; Methicillin-Resistant Staphylococcus aureus ; Pneumonia, Bacterial/complications ; Staphylococcus aureus ; Zinc
    Chemical Substances Zinc (J41CSQ7QDS)
    Language English
    Publishing date 2024-01-17
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2724325-4
    ISSN 2051-817X ; 2051-817X
    ISSN (online) 2051-817X
    ISSN 2051-817X
    DOI 10.14814/phy2.15902
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Reduced mortality from lower respiratory tract disease in adult diabetic patients treated with metformin.

    Mendy, Angelico / Gopal, Radha / Alcorn, John F / Forno, Erick

    Respirology (Carlton, Vic.)

    2019  Volume 24, Issue 7, Page(s) 646–651

    Abstract: Background and objective: Chronic lower respiratory diseases (CLRD) increase the risk of type 2 diabetes, which in turn may worsen lung function. Metformin, a common antidiabetic with anti-inflammatory and antioxidant properties, may improve respiratory ...

    Abstract Background and objective: Chronic lower respiratory diseases (CLRD) increase the risk of type 2 diabetes, which in turn may worsen lung function. Metformin, a common antidiabetic with anti-inflammatory and antioxidant properties, may improve respiratory outcomes. Therefore, we examined the association of metformin use with the risk of mortality from CLRD.
    Methods: We analysed data from the National Health and Nutrition Examination Survey during 1988-1994 and 1999-2010 for participants aged 40 years or older who had diabetes and were followed up for mortality through 2011. Information on prescription medicine was collected at baseline and CLRD-related mortality during follow-up was defined using the 10th Revision of the International Classification of Diseases (ICD-10). Cox proportional hazards modelling was used to determine the mortality hazard ratio (HR) associated with metformin use, adjusting for relevant covariates.
    Results: A total of 5266 participants with a median follow-up of 6.1 years were included. The prevalence of metformin use was 31.9% and 1869 participants died during follow-up, including 72 of CLRD. In the adjusted Cox proportional regression analysis, metformin was associated with a decreased risk of CLRD mortality in the overall population (HR: 0.39, 95% CI: 0.15-0.99) and among participants with baseline CLRD (HR: 0.30, 95% CI: 0.10-0.93), after adjusting for age, gender, race/ethnicity, cigarette smoking, body mass index, current asthma and chronic obstructive pulmonary disease (COPD), insulin and other diabetic medications, and glycohaemoglobin level. We found no association between other antidiabetic medications and CLRD mortality.
    Conclusion: In this sample representative of the U.S. population, metformin was associated with lower CLRD mortality in adults with diabetes.
    MeSH term(s) Adult ; Aged ; Cross-Sectional Studies ; Diabetes Mellitus, Type 2/drug therapy ; Diabetes Mellitus, Type 2/etiology ; Female ; Follow-Up Studies ; Humans ; Hypoglycemic Agents/therapeutic use ; Male ; Metformin/therapeutic use ; Middle Aged ; Nutrition Surveys ; Respiratory Tract Diseases/complications ; Respiratory Tract Diseases/mortality ; Survival Rate/trends ; Time Factors ; United States/epidemiology
    Chemical Substances Hypoglycemic Agents ; Metformin (9100L32L2N)
    Language English
    Publishing date 2019-02-13
    Publishing country Australia
    Document type Journal Article ; Multicenter Study ; Research Support, N.I.H., Extramural
    ZDB-ID 1435849-9
    ISSN 1440-1843 ; 1323-7799
    ISSN (online) 1440-1843
    ISSN 1323-7799
    DOI 10.1111/resp.13486
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Sodium-Glucose Cotransporter-2 Inhibitor, Empagliflozin, Suppresses the Inflammatory Immune Response to Influenza Infection.

    Constantinesco, Nicholas J / Chinnappan, Baskaran / DeVito, Louis J / Moras, Crystal / Srikanth, Sashwath / Garcia-Hernandez, Maria de la Luz / Rangel-Moreno, Javier / Gopal, Radha

    ImmunoHorizons

    2023  Volume 7, Issue 12, Page(s) 861–871

    Abstract: Influenza is a highly contagious, acute respiratory disease that causes significant public health and economic threats. Influenza infection induces various inflammatory mediators, IFNs, and recruitment of inflammatory cells in the host. This inflammatory ...

    Abstract Influenza is a highly contagious, acute respiratory disease that causes significant public health and economic threats. Influenza infection induces various inflammatory mediators, IFNs, and recruitment of inflammatory cells in the host. This inflammatory "cytokine storm" is thought to play a role in influenza-induced lung pathogenesis. Empagliflozin is a drug primarily used to lower blood glucose in type II diabetes patients by inhibiting the sodium-glucose cotransporter-2 (SGLT-2) found in the proximal tubules in the kidneys. In this study, we have investigated the effects of empagliflozin on the pulmonary immune response to influenza infection. C57BL/6 mice (wild type) were infected with influenza A/PR/8/34 and treated with empagliflozin, and the disease outcomes were analyzed. Empagliflozin treatment decreased the expression of the inflammatory cytokines IL-1β, IL-6, and CCL2; the percentage of inflammatory monocytes and inducible NO synthase-positive macrophages; and IFN response genes Stat1 and CXCL9 during influenza infection. Further, empagliflozin treatment decreases the expression of IL-6, CCL2, and CCL5 in RAW264.7 macrophages and bone marrow-derived macrophages. However, empagliflozin treatment increased influenza viral titer during infection. Despite fostering an increased viral burden, treatment with empagliflozin decreases the mortality in wild type and high fat diet-induced atherosclerotic LDLR-/- mice. Based on our findings, empagliflozin may have therapeutic implications for use in patients to prevent lung damage and acute respiratory illness.
    MeSH term(s) Humans ; Mice ; Animals ; Sodium-Glucose Transporter 2 Inhibitors/pharmacology ; Sodium-Glucose Transporter 2 Inhibitors/therapeutic use ; Diabetes Mellitus, Type 2 ; Influenza, Human/drug therapy ; Interleukin-6 ; Mice, Inbred C57BL ; Blood Glucose ; Immunity ; Sodium/therapeutic use
    Chemical Substances empagliflozin (HDC1R2M35U) ; Sodium-Glucose Transporter 2 Inhibitors ; Interleukin-6 ; Blood Glucose ; Sodium (9NEZ333N27)
    Language English
    Publishing date 2023-12-19
    Publishing country United States
    Document type Journal Article
    ISSN 2573-7732
    ISSN (online) 2573-7732
    DOI 10.4049/immunohorizons.2300077
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Immune reconstitution inflammatory syndrome associated with pulmonary pathogens.

    Gopal, Radha / Rapaka, Rekha R / Kolls, Jay K

    European respiratory review : an official journal of the European Respiratory Society

    2017  Volume 26, Issue 143

    Abstract: Immune reconstitution inflammatory syndrome (IRIS) is an exaggerated immune response to a variety of pathogens in response to antiretroviral therapy-mediated recovery of the immune system in HIV-infected patients. Although IRIS can occur in many organs, ... ...

    Abstract Immune reconstitution inflammatory syndrome (IRIS) is an exaggerated immune response to a variety of pathogens in response to antiretroviral therapy-mediated recovery of the immune system in HIV-infected patients. Although IRIS can occur in many organs, pulmonary IRIS, associated with opportunistic infections such as Mycobacterium tuberculosis and Pneumocystis jirovecii, is particularly associated with high morbidity and mortality. The pathology of IRIS is associated with a variety of innate and adaptive immune factors, including CD4
    MeSH term(s) Adaptive Immunity ; Animals ; Cytokines/immunology ; Cytokines/metabolism ; Disease Models, Animal ; Host-Pathogen Interactions/immunology ; Humans ; Immune Reconstitution Inflammatory Syndrome/diagnosis ; Immune Reconstitution Inflammatory Syndrome/genetics ; Immune Reconstitution Inflammatory Syndrome/immunology ; Immune Reconstitution Inflammatory Syndrome/metabolism ; Immunity, Innate ; Inflammation Mediators/immunology ; Inflammation Mediators/metabolism ; Lymphocyte Subsets/immunology ; Lymphocyte Subsets/metabolism ; Mice, Knockout ; Primates ; Prognosis ; Respiratory Tract Infections/diagnosis ; Respiratory Tract Infections/genetics ; Respiratory Tract Infections/immunology ; Respiratory Tract Infections/metabolism ; Signal Transduction ; Toll-Like Receptors/immunology ; Toll-Like Receptors/metabolism
    Chemical Substances Cytokines ; Inflammation Mediators ; Toll-Like Receptors
    Language English
    Publishing date 2017-01-03
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 1077620-5
    ISSN 1600-0617 ; 0905-9180
    ISSN (online) 1600-0617
    ISSN 0905-9180
    DOI 10.1183/16000617.0042-2016
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Vaccines against tuberculosis: moving forward with new concepts.

    Gopal, Radha / Khader, Shabaana A

    Expert review of vaccines

    2013  Volume 12, Issue 8, Page(s) 829–831

    MeSH term(s) Clinical Trials as Topic ; Drug Discovery/trends ; Drug Evaluation, Preclinical/methods ; Humans ; Interleukin-17/metabolism ; Tuberculosis/immunology ; Tuberculosis/prevention & control ; Tuberculosis Vaccines/immunology ; Tuberculosis Vaccines/isolation & purification
    Chemical Substances Interleukin-17 ; Tuberculosis Vaccines
    Language English
    Publishing date 2013-08-14
    Publishing country England
    Document type Editorial ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2181284-6
    ISSN 1744-8395 ; 1476-0584
    ISSN (online) 1744-8395
    ISSN 1476-0584
    DOI 10.1586/14760584.2013.814836
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: IL-17 in protective immunity to intracellular pathogens.

    Khader, Shabaana A / Gopal, Radha

    Virulence

    2011  Volume 1, Issue 5, Page(s) 423–427

    Abstract: The identification of a new T cell subset referred to as T helper 17 (Th17) cells and its role in protective immunity against extracellular bacterial infections is well established. In contrast, initial studies suggested that the IL-23-IL-17 pathway was ... ...

    Abstract The identification of a new T cell subset referred to as T helper 17 (Th17) cells and its role in protective immunity against extracellular bacterial infections is well established. In contrast, initial studies suggested that the IL-23-IL-17 pathway was not required for protection against intracellular pathogens such as mycobacterial infections. However, recent studies demonstrate that Th17-IL-23 pathway may play a crucial role in protective immunity against other intracellular pathogens by regulating the innate and adaptive immune responses. The current outlook on the role of IL-23-IL-17 pathway in protective immunity to intracellular pathogens is discussed here.
    MeSH term(s) Animals ; Bacterial Infections/immunology ; Chlamydia muridarum/immunology ; Chlamydia muridarum/pathogenicity ; Francisella tularensis/immunology ; Francisella tularensis/pathogenicity ; Humans ; Interleukin-17/immunology ; Interleukin-23/immunology ; Models, Biological ; Mycobacterium bovis/immunology ; Mycobacterium bovis/pathogenicity ; Mycobacterium tuberculosis/immunology ; Mycobacterium tuberculosis/pathogenicity ; Salmonella typhimurium/immunology ; Salmonella typhimurium/pathogenicity ; Th17 Cells/immunology
    Chemical Substances Interleukin-17 ; Interleukin-23
    Language English
    Publishing date 2011-02-15
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 2657572-3
    ISSN 2150-5608 ; 2150-5594
    ISSN (online) 2150-5608
    ISSN 2150-5594
    DOI 10.4161/viru.1.5.12862
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top