LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 8 of total 8

Search options

  1. Article ; Online: Traditional Cardiovascular Risk Factors Are Stronger Related to Carotid Intima-Media Thickness Than to Presence of Carotid Plaques in People Living With HIV.

    Blaauw, Marc J T / Berrevoets, Marvin A H / Vos, Wilhelm A J W / Groenendijk, Albert L / van Eekeren, Louise E / Vadaq, Nadira / Weijers, Gert / van der Ven, Andre J A M / Rutten, Joost H W / Riksen, Niels P

    Journal of the American Heart Association

    2023  Volume 12, Issue 20, Page(s) e030606

    Abstract: Background Cardiovascular disease is a major cause of morbidity and mortality in people living with HIV, who are at higher risk than the general population. We assessed, in a large cohort of people living with HIV, which cardiovascular, HIV-specific, and ...

    Abstract Background Cardiovascular disease is a major cause of morbidity and mortality in people living with HIV, who are at higher risk than the general population. We assessed, in a large cohort of people living with HIV, which cardiovascular, HIV-specific, and lipoproteomic markers were associated with carotid intima-media thickness (cIMT) and carotid plaque presence. We also studied guideline adherence on lipid-lowering medication in individuals with high and very high risk for cardiovascular disease. Methods and Results In 1814 individuals with a median (interquartile range) age of 53 (44-60) years, we found a carotid plaque in 909 (50.1%) and a median (interquartile range) intima-media thickness of 0.66 (0.57-0.76) mm. Ultrasonography was used for the assessment of cIMT and plaque presence. Univariable and multivariable regression models were used for associations with cIMT and presence of plaques. Age, Black race, body mass index, type 2 diabetes, and smoking (pack years) were all positively associated with higher cIMT. Levels of high-density lipoprotein cholesterol, specifically medium and large high-density lipoprotein subclasses, were negatively associated with higher cIMT. Only age and prior myocardial infarction were positively related to the presence of a carotid plaque. Lipid-lowering treatment was prescribed in one-third of people living with HIV, who are at high and very high risk for cardiovascular disease. Conclusions Traditional cardiovascular risk factors were significantly associated with higher cIMT but not with carotid plaques, except for age. HIV-specific factors were not associated with both ultrasound measurements. Future studies are needed to elucidate which factors contribute to plaque formation. Improvement of guideline adherence on prescription of lipid-lowering treatment in high- and very high-risk patients for cardiovascular disease is recommended. Registration URL: https://www.clinicaltrials.gov; Unique identifier: NCT03994835.
    MeSH term(s) Child, Preschool ; Humans ; Middle Aged ; Cardiovascular Diseases/etiology ; Cardiovascular Diseases/complications ; Carotid Intima-Media Thickness ; Diabetes Mellitus, Type 2/complications ; Heart Disease Risk Factors ; HIV Infections/complications ; HIV Infections/drug therapy ; HIV Infections/epidemiology ; Lipoproteins, HDL/therapeutic use ; Plaque, Atherosclerotic/complications ; Risk Factors
    Chemical Substances Lipoproteins, HDL
    Language English
    Publishing date 2023-10-07
    Publishing country England
    Document type Clinical Trial ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2653953-6
    ISSN 2047-9980 ; 2047-9980
    ISSN (online) 2047-9980
    ISSN 2047-9980
    DOI 10.1161/JAHA.123.030606
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Cardiometabolic Differences in People Living with HIV Receiving Integrase Strand Transfer Inhibitors Compared to Non-nucleoside Reverse Transcriptase Inhibitors: Implications for Current ART Strategies.

    Vos, Wilhelm A J W / Vadaq, Nadira / Matzaraki, Vasiliki / Otten, Twan / Groenendijk, Albert L / Blaauw, Marc J T / van Eekeren, Louise E / Brinkman, Kees / de Mast, Quirijn / Riksen, Niels P / Stalenhoef, Anton F H / van Lunzen, Jan / van der Ven, Andre J A M / Blok, Willem L / Stalenhoef, Janneke E

    Viruses

    2024  Volume 16, Issue 4

    Abstract: In people living with HIV (PLHIV), integrase strand transfer inhibitors (INSTIs) are part of the first-line combination antiretroviral therapy (cART), while non-nucleoside reverse transcriptase inhibitor (NNRTI)-based regimens are alternatives. Distinct ... ...

    Abstract In people living with HIV (PLHIV), integrase strand transfer inhibitors (INSTIs) are part of the first-line combination antiretroviral therapy (cART), while non-nucleoside reverse transcriptase inhibitor (NNRTI)-based regimens are alternatives. Distinct cART regimens may variably influence the risk for non-AIDS comorbidities. We aimed to compare the metabolome and lipidome of INSTI and NNRTI-based regimens. The 2000HIV study includes asymptomatic PLHIV (n = 1646) on long-term cART, separated into a discovery cohort with 730 INSTI and 617 NNRTI users, and a validation cohort encompassing 209 INSTI and 90 NNRTI users. Baseline plasma samples from INSTI and NNRTI users were compared using mass spectrometry-based untargeted metabolomic (n = 500) analysis. Perturbed metabolic pathways were identified using MetaboAnalyst software. Subsequently, nuclear magnetic resonance spectroscopy was used for targeted lipoprotein and lipid (n = 141) analysis. Metabolome homogeneity was observed between the different types of INSTI and NNRTI. In contrast, higher and lower levels of 59 and 45 metabolites, respectively, were found in the INSTI group compared to NNRTI users, of which 77.9% (81/104) had consistent directionality in the validation cohort. Annotated metabolites belonged mainly to 'lipid and lipid-like molecules', 'organic acids and derivatives' and 'organoheterocyclic compounds'. In pathway analysis, perturbed 'vitamin B1 (thiamin) metabolism', 'de novo fatty acid biosynthesis', 'bile acid biosynthesis' and 'pentose phosphate pathway' were detected, among others. Lipoprotein and lipid levels in NNRTIs were heterogeneous and could not be compared as a group. INSTIs compared to individual NNRTI types showed that HDL cholesterol was lower in INSTIs compared to nevirapine but higher in INSTIs compared to doravirine. In addition, LDL size was lower in INSTIs and nevirapine compared to doravirine. NNRTIs show more heterogeneous cardiometabolic effects than INSTIs, which hampers the comparison between these two classes of drugs. Targeted lipoproteomic and lipid NMR spectroscopy showed that INSTI use was associated with a more unfavorable lipid profile compared to nevirapine, which was shifted to a more favorable profile for INSTI when substituting nevirapine for doravirine, with evidently higher fold changes. The cardiovascular disease risk profile seems more favorable in INSTIs compared to NNRTIs in untargeted metabolomic analysis using mass-spectrometry.
    MeSH term(s) Humans ; HIV Infections/drug therapy ; Reverse Transcriptase Inhibitors/therapeutic use ; Male ; Female ; Middle Aged ; Adult ; HIV Integrase Inhibitors/therapeutic use ; Metabolome/drug effects ; Anti-HIV Agents/therapeutic use ; Metabolomics ; Cohort Studies ; Antiretroviral Therapy, Highly Active
    Chemical Substances Reverse Transcriptase Inhibitors ; HIV Integrase Inhibitors ; Anti-HIV Agents
    Language English
    Publishing date 2024-04-10
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Comparative Study
    ZDB-ID 2516098-9
    ISSN 1999-4915 ; 1999-4915
    ISSN (online) 1999-4915
    ISSN 1999-4915
    DOI 10.3390/v16040582
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Targeted plasma proteomics identifies MICA and IL1R1 proteins associated with HIV-1 reservoir size.

    Blaauw, Marc J T / Cristina Dos Santos, Jéssica / Vadaq, Nadira / Trypsteen, Wim / van der Heijden, Wouter / Groenendijk, Albert / Zhang, Zhenhua / Li, Yang / de Mast, Quirijn / Netea, Mihai G / Joosten, Leo A B / Vandekerckhove, Linos / van der Ven, Andre / Matzaraki, Vasiliki

    iScience

    2023  Volume 26, Issue 4, Page(s) 106486

    Abstract: HIV-1 reservoir shows high variability in size and activity among virally suppressed individuals. Differences in the size of the viral reservoir may relate to differences in plasma protein concentrations. We tested whether plasma protein expression ... ...

    Abstract HIV-1 reservoir shows high variability in size and activity among virally suppressed individuals. Differences in the size of the viral reservoir may relate to differences in plasma protein concentrations. We tested whether plasma protein expression levels are associated with levels of cell-associated (CA) HIV-1 DNA and RNA in 211 virally suppressed people living with HIV (PLHIV). Plasma concentrations of FOLR1, IL1R1, MICA, and FETUB showed a positive association with CA HIV-1 RNA and DNA. Moreover, SNPs in close proximity to
    Language English
    Publishing date 2023-03-22
    Publishing country United States
    Document type Journal Article
    ISSN 2589-0042
    ISSN (online) 2589-0042
    DOI 10.1016/j.isci.2023.106486
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: People with HIV have higher percentages of circulating CCR5+ CD8+ T cells and lower percentages of CCR5+ regulatory T cells.

    van Eekeren, Louise E / Matzaraki, Vasiliki / Zhang, Zhenhua / van de Wijer, Lisa / Blaauw, Marc J T / de Jonge, Marien I / Vandekerckhove, Linos / Trypsteen, Wim / Joosten, Leo A B / Netea, Mihai G / de Mast, Quirijn / Koenen, Hans J P M / Li, Yang / van der Ven, André J A M

    Scientific reports

    2022  Volume 12, Issue 1, Page(s) 11425

    Abstract: CCR5 is the main HIV co-receptor. We aimed to (1) compare CCR5 expression on immune cells between people living with HIV (PLHIV) using combination antiretroviral therapy (cART) and HIV-uninfected controls, (2) relate CCR5 expression to viral reservoir ... ...

    Abstract CCR5 is the main HIV co-receptor. We aimed to (1) compare CCR5 expression on immune cells between people living with HIV (PLHIV) using combination antiretroviral therapy (cART) and HIV-uninfected controls, (2) relate CCR5 expression to viral reservoir size and (3) assess determinants of CCR5 expression. This cross-sectional study included 209 PLHIV and 323 controls. Percentages of CCR5+ cells (%) and CCR5 mean fluorescence intensity assessed by flow cytometry in monocytes and lymphocyte subsets were correlated to host factors, HIV-1 cell-associated (CA)-RNA and CA-DNA, plasma inflammation markers and metabolites. Metabolic pathways were identified. PLHIV displayed higher percentages of CCR5+ monocytes and several CD8+ T cell subsets, but lower percentages of CCR5+ naive CD4+ T cells and regulatory T cells (Tregs). HIV-1 CA-DNA and CA-RNA correlated positively with percentages of CCR5+ lymphocytes. Metabolome analysis revealed three pathways involved in energy metabolism associated with percentage of CCR5+ CD8+ T cells in PLHIV. Our results indicate that CCR5 is differently expressed on various circulating immune cells in PLHIV. Hence, cell-trafficking of CD8+ T cells and Tregs may be altered in PLHIV. Associations between energy pathways and percentage of CCR5+ CD8+ T cells in PLHIV suggest higher energy demand of these cells in PLHIV.
    MeSH term(s) CD8-Positive T-Lymphocytes/immunology ; Cross-Sectional Studies ; HIV Infections/blood ; HIV Infections/immunology ; HIV-1/immunology ; Humans ; RNA/metabolism ; Receptors, CCR5/immunology ; Receptors, HIV ; T-Lymphocytes, Regulatory/immunology
    Chemical Substances CCR5 protein, human ; Receptors, CCR5 ; Receptors, HIV ; RNA (63231-63-0)
    Language English
    Publishing date 2022-07-06
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-022-15646-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Few bacterial co-infections but frequent empiric antibiotic use in the early phase of hospitalized patients with COVID-19: results from a multicentre retrospective cohort study in The Netherlands.

    Karami, Zara / Knoop, Bram T / Dofferhoff, Anton S M / Blaauw, Marc J T / Janssen, Nico A / van Apeldoorn, Marjan / Kerckhoffs, Angèle P M / van de Maat, Josephine S / Hoogerwerf, Jacobien J / Ten Oever, Jaap

    Infectious diseases (London, England)

    2020  Volume 53, Issue 2, Page(s) 102–110

    Abstract: Background: Knowledge on bacterial co-infections in COVID-19 is crucial to use antibiotics appropriately. Therefore, we aimed to determine the incidence of bacterial co-infections, antibiotic use and application of antimicrobial stewardship principles ... ...

    Abstract Background: Knowledge on bacterial co-infections in COVID-19 is crucial to use antibiotics appropriately. Therefore, we aimed to determine the incidence of bacterial co-infections, antibiotic use and application of antimicrobial stewardship principles in hospitalized patients with COVID-19.
    Methods: We performed a retrospective observational study in four hospitals (1 university, 2 non-university teaching, 1 non-teaching hospital) in the Netherlands from March to May 2020 including consecutive patients with PCR-confirmed COVID-19. Data on first microbiological investigations obtained at the discretion of the physician and antibiotic use in the first week of hospital admission were collected.
    Results: Twelve (1.2%) of the 925 patients included had a documented bacterial co-infection (75.0% pneumonia) within the first week. Microbiological testing was performed in 749 (81%) patients: sputum cultures in 105 (11.4%), blood cultures in 711 (76.9%), pneumococcal urinary antigen testing in 202 (21.8%), and
    Conclusions: On presentation to the hospital bacterial co-infections are rare, while empiric antibiotic use is abundant. This implies that in patients with COVID-19 empiric antibiotic should be withheld. This has the potential to dramatically reduce the current overuse of antibiotics in the COVID-19 pandemic.
    MeSH term(s) Aged ; Anti-Bacterial Agents/administration & dosage ; Antimicrobial Stewardship ; Bacterial Infections/drug therapy ; Bacterial Infections/epidemiology ; Bacterial Infections/microbiology ; Blood Culture ; COVID-19/epidemiology ; COVID-19/virology ; Coinfection ; Drug Administration Routes ; Drug Administration Schedule ; Female ; Guideline Adherence/statistics & numerical data ; Hospitalization ; Humans ; Incidence ; Male ; Middle Aged ; Netherlands/epidemiology ; Pandemics ; Prescription Drug Overuse/prevention & control ; Prescription Drug Overuse/statistics & numerical data ; Retrospective Studies ; SARS-CoV-2/pathogenicity
    Chemical Substances Anti-Bacterial Agents
    Keywords covid19
    Language English
    Publishing date 2020-10-24
    Publishing country England
    Document type Journal Article ; Multicenter Study ; Observational Study
    ZDB-ID 2839775-7
    ISSN 2374-4243 ; 2374-4235
    ISSN (online) 2374-4243
    ISSN 2374-4235
    DOI 10.1080/23744235.2020.1839672
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article: Few bacterial co-infections but frequent empiric antibiotic use in the early phase of hospitalized patients with COVID-19: results from a multicentre retrospective cohort study in The Netherlands

    Karami, Zara / Knoop, Bram T / Dofferhoff, Anton S M / Blaauw, Marc J T / Janssen, Nico A / van Apeldoorn, Marjan / Kerckhoffs, Angèle P M / van de Maat, Josephine S / Hoogerwerf, Jacobien J / Ten Oever, Jaap

    Infect Dis (Lond)

    Abstract: BACKGROUND: Knowledge on bacterial co-infections in COVID-19 is crucial to use antibiotics appropriately. Therefore, we aimed to determine the incidence of bacterial co-infections, antibiotic use and application of antimicrobial stewardship principles in ...

    Abstract BACKGROUND: Knowledge on bacterial co-infections in COVID-19 is crucial to use antibiotics appropriately. Therefore, we aimed to determine the incidence of bacterial co-infections, antibiotic use and application of antimicrobial stewardship principles in hospitalized patients with COVID-19. METHODS: We performed a retrospective observational study in four hospitals (1 university, 2 non-university teaching, 1 non-teaching hospital) in the Netherlands from March to May 2020 including consecutive patients with PCR-confirmed COVID-19. Data on first microbiological investigations obtained at the discretion of the physician and antibiotic use in the first week of hospital admission were collected. RESULTS: Twelve (1.2%) of the 925 patients included had a documented bacterial co-infection (75.0% pneumonia) within the first week. Microbiological testing was performed in 749 (81%) patients: sputum cultures in 105 (11.4%), blood cultures in 711 (76.9%), pneumococcal urinary antigen testing in 202 (21.8%), and Legionella urinary antigen testing in 199 (21.5%) patients, with clear variation between hospitals. On presentation 556 (60.1%; range 33.3-73.4%) patients received antibiotics for a median duration of 2 days (IQR 1-4). Intravenous to oral switch was performed in 41 of 413 (9.9%) patients who received intravenous treatment >48 h. Mean adherence to the local guideline on empiric antibiotic therapy on day 1 was on average 60.3% (range 45.3%-74.7%). CONCLUSIONS: On presentation to the hospital bacterial co-infections are rare, while empiric antibiotic use is abundant. This implies that in patients with COVID-19 empiric antibiotic should be withheld. This has the potential to dramatically reduce the current overuse of antibiotics in the COVID-19 pandemic.
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #889455
    Database COVID19

    Kategorien

  7. Article ; Online: Few bacterial co-infections but frequent empiric antibiotic use in the early phase of hospitalized patients with COVID-19

    Karami, Zara / Knoop, Bram T. / Dofferhoff, Anton S. M. / Blaauw, Marc J. T. / Janssen, Nico A. / van Apeldoorn, Marjan / Kerckhoffs, Angèle P. M. / van de Maat, Josephine S. / Hoogerwerf, Jacobien J. / ten Oever, Jaap

    Infectious Diseases

    results from a multicentre retrospective cohort study in The Netherlands

    2020  , Page(s) 1–9

    Keywords Microbiology (medical) ; General Immunology and Microbiology ; Infectious Diseases ; General Medicine ; covid19
    Language English
    Publisher Informa UK Limited
    Publishing country uk
    Document type Article ; Online
    ZDB-ID 2839775-7
    ISSN 2374-4243 ; 2374-4235
    ISSN (online) 2374-4243
    ISSN 2374-4235
    DOI 10.1080/23744235.2020.1839672
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  8. Article ; Online: Dysregulated Innate and Adaptive Immune Responses Discriminate Disease Severity in COVID-19.

    Janssen, Nico A F / Grondman, Inge / de Nooijer, Aline H / Boahen, Collins K / Koeken, Valerie A C M / Matzaraki, Vasiliki / Kumar, Vinod / He, Xuehui / Kox, Matthijs / Koenen, Hans J P M / Smeets, Ruben L / Joosten, Irma / Brüggemann, Roger J M / Kouijzer, Ilse J E / van der Hoeven, Hans G / Schouten, Jeroen A / Frenzel, Tim / Reijers, Monique H E / Hoefsloot, Wouter /
    Dofferhoff, Anton S M / van Apeldoorn, Marjan J / Blaauw, Marc J T / Veerman, Karin / Maas, Coen / Schoneveld, Arjan H / Hoefer, Imo E / Derde, Lennie P G / van Deuren, Marcel / van der Meer, Jos W M / van Crevel, Reinout / Giamarellos-Bourboulis, Evangelos J / Joosten, Leo A B / van den Heuvel, Michel M / Hoogerwerf, Jacobien / de Mast, Quirijn / Pickkers, Peter / Netea, Mihai G / van de Veerdonk, Frank L

    The Journal of infectious diseases

    2021  Volume 223, Issue 8, Page(s) 1322–1333

    Abstract: The clinical spectrum of COVID-19 varies and the differences in host response characterizing this variation have not been fully elucidated. COVID-19 disease severity correlates with an excessive proinflammatory immune response and profound lymphopenia. ... ...

    Abstract The clinical spectrum of COVID-19 varies and the differences in host response characterizing this variation have not been fully elucidated. COVID-19 disease severity correlates with an excessive proinflammatory immune response and profound lymphopenia. Inflammatory responses according to disease severity were explored by plasma cytokine measurements and proteomics analysis in 147 COVID-19 patients. Furthermore, peripheral blood mononuclear cell cytokine production assays and whole blood flow cytometry were performed. Results confirm a hyperinflammatory innate immune state, while highlighting hepatocyte growth factor and stem cell factor as potential biomarkers for disease severity. Clustering analysis revealed no specific inflammatory endotypes in COVID-19 patients. Functional assays revealed abrogated adaptive cytokine production (interferon-γ, interleukin-17, and interleukin-22) and prominent T-cell exhaustion in critically ill patients, whereas innate immune responses were intact or hyperresponsive. Collectively, this extensive analysis provides a comprehensive insight into the pathobiology of severe to critical COVID-19 and highlights potential biomarkers of disease severity.
    MeSH term(s) Adaptive Immunity/immunology ; Aged ; Biomarkers/blood ; COVID-19/blood ; COVID-19/immunology ; COVID-19/virology ; Cytokine Release Syndrome/blood ; Cytokine Release Syndrome/immunology ; Cytokine Release Syndrome/virology ; Cytokines/immunology ; Female ; Humans ; Immunity, Innate/immunology ; Inflammation/blood ; Inflammation/immunology ; Inflammation/virology ; Leukocytes, Mononuclear/immunology ; Leukocytes, Mononuclear/virology ; Lymphopenia/blood ; Lymphopenia/immunology ; Lymphopenia/virology ; Male ; Middle Aged ; SARS-CoV-2/immunology ; Severity of Illness Index
    Chemical Substances Biomarkers ; Cytokines
    Language English
    Publishing date 2021-02-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 3019-3
    ISSN 1537-6613 ; 0022-1899
    ISSN (online) 1537-6613
    ISSN 0022-1899
    DOI 10.1093/infdis/jiab065
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top