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Equity, Diversity and Inclusion (EDI) in Organ Transplantation: An ESOT Survey About EDI Within ESOT as an Organization and its Educational Activities, and Transplantation Research and Science. Transpl Int 2023; 36:11331. [PMID: 37680646 PMCID: PMC10481529 DOI: 10.3389/ti.2023.11331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 07/31/2023] [Indexed: 09/09/2023]
Abstract
The European Society of Organ Transplantation (ESOT) strives to promote equity, diversity, and inclusion (EDI) across all its activities. We surveyed the transplant community's experiences and perspectives regarding EDI within ESOT as an organization and its educational activities, and research in general. A total of 299 respondents completed the questionnaire. About half agreed that ESOT's Executive Committee, Council, and Sections/Committees are diverse and inclusive (51%) and that ESOT promotes EDI in its live and digital educational activities (54%). Forty percent of respondents agreed that scientific and clinical trials in the field of transplantation are diverse and inclusive. Despite the wide distribution of the survey, most of the respondents self-identified as White and were either physician or surgeon. However, the results contribute a unique insight into the experiences and perspectives of the transplantation community regarding EDI. Whilst ESOT is committed to the principles of EDI, perceptions and the high number of proposals show the apparent need to prioritize efforts to embed EDI across ESOT and transplantation science. These data should constitute a starting point for change and provide guidance for future efforts to promote EDI within the transplantation community.
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Perioperative Desensitization Changes the Plasma Cytokine Milieu in Lung Transplant Patients with Preformed Donor Specific Antibodies. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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3
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Nine-Year Results of an IgA-And IgM-Enriched Human Immunoglobulin-Based Therapy for Early Detectable Anti-HLA Donor Specific Antibodies after Lung Transplantation. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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4
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Coincidence of Early Graft Rejection and Replication of Human Herpesvirus 6 in the Donor Heart Associated with a CD38+ Lineage of Negative T Cells. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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5
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Citraconate inhibits ACOD1 (IRG1) catalysis, reduces interferon responses and oxidative stress, and modulates inflammation and cell metabolism. Nat Metab 2022; 4:534-546. [PMID: 35655026 PMCID: PMC9170585 DOI: 10.1038/s42255-022-00577-x] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 04/20/2022] [Indexed: 01/08/2023]
Abstract
Although the immunomodulatory and cytoprotective properties of itaconate have been studied extensively, it is not known whether its naturally occurring isomers mesaconate and citraconate have similar properties. Here, we show that itaconate is partially converted to mesaconate intracellularly and that mesaconate accumulation in macrophage activation depends on prior itaconate synthesis. When added to human cells in supraphysiological concentrations, all three isomers reduce lactate levels, whereas itaconate is the strongest succinate dehydrogenase (SDH) inhibitor. In cells infected with influenza A virus (IAV), all three isomers profoundly alter amino acid metabolism, modulate cytokine/chemokine release and reduce interferon signalling, oxidative stress and the release of viral particles. Of the three isomers, citraconate is the strongest electrophile and nuclear factor-erythroid 2-related factor 2 (NRF2) agonist. Only citraconate inhibits catalysis of itaconate by cis-aconitate decarboxylase (ACOD1), probably by competitive binding to the substrate-binding site. These results reveal mesaconate and citraconate as immunomodulatory, anti-oxidative and antiviral compounds, and citraconate as the first naturally occurring ACOD1 inhibitor.
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Eight-Year Results of an IgA- and IgM-Enriched Human Immunoglobulin-Based Therapy for Early Detectable Anti-HLA Donor Specific Antibodies After Lung Transplantation. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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7
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Perioperative Desensitization with IgA- and IgM-Enriched Human Immunoglobulins Allows Safe Lung Transplantation in Patients with Preformed Donor Specific Antibodies. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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8
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Risk Factors for the Development of Early Anti-HLA Donor Specific Antibodies After Lung Transplantation: The Role of Primary Graft Dysfunction. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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9
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Primary Graft Dysfunction following Lung Transplantation Is Associated with Increased In Vivo T-Cell Alloreactivity. Thorac Cardiovasc Surg 2022. [DOI: 10.1055/s-0042-1742874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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10
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Regulatory T Cells and the Effect of Ex Vivo Preservation on the Development of Transplant Arteriosclerosis in a Humanized Mouse Model. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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11
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Donor T and NK Cells with a Special Tissue-Resident Memory Phenotype Migrate into the Periphery of Lung Transplant Recipients - A Potential Feature for Tolerance Development. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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12
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Implementation of daily chlorhexidine bathing in intensive care units for reduction of central line-associated bloodstream infections. J Hosp Infect 2021; 110:26-32. [PMID: 33482298 DOI: 10.1016/j.jhin.2021.01.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 01/12/2021] [Accepted: 01/12/2021] [Indexed: 01/02/2023]
Abstract
BACKGROUND Daily chlorhexidine bathing has been associated with a reduction in central line-associated bloodstream infections (CLABSI). In the setting of an already established CLABSI surveillance system and an implemented CLABSI prevention bundle, we analysed the effect of daily chlorhexidine bathing in ICU patients on CLABSI incidence and its causative pathogens. METHODS This was a before-and-after study in intensive care units (ICUs) at a tertiary-care centre in Switzerland. Prospective surveillance of CLABSIs and their aetiologies was established. The intervention consisted of daily chlorhexidine bathing of ICU patients with a central venous catheter. A baseline period of 19 months was followed by an intervention period of 9 months. FINDINGS A total of 5008 patients were included. In the baseline period a mean CLABSI rate of 2.45/1000 catheter days (95% confidence interval (CI) 1.93-3.07) was observed, followed by 1.00/1000 catheter days (95% CI 0.55-1.67; P<0.001) in the intervention period. Introduction of chlorhexidine bathing was independently associated with a reduced risk of CLABSI (adjusted odds ratio 0.47, 95% CI 0.26-0.84, P=0.011). We did not observe a significant change in aetiology except for an increase of Serratia marcescens in the intervention period. CONCLUSIONS Introduction of daily chlorhexidine bathing resulted in a decline in CLABSI incidence on ICUs. Starting from a baseline CLABSI rate that can be considered standard in a high-income setting and several measures for CLABSI prevention implemented, chlorhexidine bathing proved helpful for a further reduction.
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Treatment of ANTI-HLA Donor-Specific Antibodies and Antibody-Mediated Rejection in Heart Transplantation: A Single-Center 3-Year Experience. Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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14
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The Effect of Ex Vivo Preservation and Regulatory T Cells on the Development of Transplant Arteriosclerosis in a Humanized Mouse Model. Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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15
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Correlation of CLAD in Lung Transplant Recipients with Transplant Arteriosclerosis in Humanized Mice: A 5-years Follow Up Analysis. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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16
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Six-Year Results of an IgA- and IgM-Enriched Immunoglobulin-Based Therapy for Early Detectable Anti-HLA Donor Specific Antibodies in Lung Transplantation. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.1302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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17
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Inflammatory Response after Immediate versus Delayed Ex-Vivo Lung Perfusion in a Porcine Cardiac Arrest Donation Model. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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18
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Linking CLAD in Lung Transplant Recipients after 3 Years Follow Up with Transplant Arteriosclerosis in Humanized Mice. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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19
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The Frequency of Tissue-Resident Donor T and NK Cells in Peripheral Blood after Lung Transplantation is Modulated by Normothermic Ex Vivo Lung. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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20
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Lung Transplant Recipients with Severe Primary Graft Dysfunction Developed Decreased Transplant Arteriosclerosis in Humanized Mice Models. Thorac Cardiovasc Surg 2019. [DOI: 10.1055/s-0039-1678982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Transplant Arteriosclerosis in Humanized Mice Reflects the Presence of Early Donor-Specific Antibodies in Lung Transplant Recipients and Is Controlled by Autologous Regulatory T Cells. Thorac Cardiovasc Surg 2019. [DOI: 10.1055/s-0039-1678897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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22
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Viral dominance patterns in chronic hepatitis delta determine early response to interferon alpha therapy. J Viral Hepat 2018; 25:1384-1394. [PMID: 29888837 DOI: 10.1111/jvh.12947] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 04/30/2018] [Indexed: 12/17/2022]
Abstract
Chronic hepatitis D is caused by coinfection of hepatitis B and hepatitis D virus. While HDV is the dominant virus over HBV in the majority of cases, mechanisms and consequences of viral dominance are largely unknown. We aimed to investigate associations between viral dominance patterns and patients' characteristics and inflammatory features; 109 HDV-infected patients treated with PEG-IFNa-2α within the international multicentre, prospective HIDIT-2 trial were studied. Patients were classified as D- or B-dominant if the viral load of one virus exceeded that of the other virus by more than 1log10 . Otherwise, no viral dominance (ND) was described. We used Luminex-based multiplex technology to study 50 soluble immune mediators (SIM) in pretreatment samples of 105 HDV RNA-positive patients. Dominance of HDV was evident in the majority (75%) of cases. While only 7% displayed B-dominance, 17% showed nondominance. D-dominance was associated with downregulation of 4 interleukins (IL-2ra, IL-13, IL-16 and IL-18) and 5 chemokines/cytokines (CTACK (CCL27), MCP-1 (CCL2), M-CSF, TRAIL and ICAM-1) while no analyte was increased. In addition, D-dominance could be linked to a delayed HDV RNA response to pegylated interferon as patients with B-dominance or nondominance showed higher early HDV RNA responses (61% at week 12) than D-dominant patients (11%; P < .001). In conclusion, this study revealed unexpected effects of viral dominance on clinical and immunological features in chronic hepatitis delta patients. Individualizing PEG-IFNa-2α treatment duration should consider viral dominance. Overall, our findings suggest an activated but exhausted IFN system in D-dominant patients.
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Ischemia Reperfusion Injury Significantly Differs Between Lung vs. Heart Transplantation with Respect to Lead Cytokines and Correlation to Clinical Outcome. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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24
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Cytokine Dynamics Insights into Improved Lung Preservation Using the Organ Care System in a Porcine Transplantation Model in Comparison to the INSPIRE Trial. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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25
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Linking Early Humoral Sensitization in Lung Transplant Recipients with Even Earlier Cellular Alloreactivity in Humanized Mice. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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26
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After Clinical Lung Transplantation, NK Cells with a Lung-Resident Phenotype Represent the Most Prominent Donor Passenger Leukocyte Subset. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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27
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Linking Early Donor-Specific Antibodies in Lung Transplant Recipients with Transplant Arteriosclerosis in Humanized Mice. Thorac Cardiovasc Surg 2018. [DOI: 10.1055/s-0038-1627953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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28
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P4537Prevalence of infective endocarditis in patients with gram positive cocci bacteraemia. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p4537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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29
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Normothermic Donor Lung Preservation Using the Organ Care System Significantly Reduces Ischemia/Reperfusion Injury by Promoting Cytokine Antagonists. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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30
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Autotransplantation of the Left Lung for the Treatment of Recurrent Life Threatening Pulmonary Hemorrhage Related to Pulmonary Vascular Malformation: A Novel Treatment Approach & a Unique Chance to Study Ischemia/Reperfusion Injury. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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31
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Immune Monitoring-Guided Treatment of a Pediatric Patient with Sequential GvHD, Acute Rejection and CMV Infection Following Lung Transplantation. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.738] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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32
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Cytokine Expression in Humanized Mice Reflects Development of Primary Graft Dysfunction in Lung Transplant Recipients. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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33
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428 Secretion of IL-4 and IFN-γ by autoreactive effector-memory CD8 + T cells in atopic dermatitis. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.06.448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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34
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Normothermic Donor Lung Preservation with Portable EVLP Maintains IL-33-Driven Epithelial Integrity and Suppresses Inflammation in the Recipient. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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35
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IFN-mediated cytokine induction is associated with sustained virological response in chronic HCV infection. ZEITSCHRIFT FUR GASTROENTEROLOGIE 2015. [DOI: 10.1055/s-0035-1568108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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36
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Early Donor Specific Antibodies After Lung Transplantation Lead to an Increase of CD56+CD16+ NK Cells in Peripheral Blood. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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37
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Belatacept Can Inhibit Allo-Specific T Cell Responses in a Donor-Dependent Manner But Preserves Virus-Specific Memory T Cell-Responses. Transplantation 2014. [DOI: 10.1097/00007890-201407151-00115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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38
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Modulation of immune-mediators from donor lungs using the OrganCareSystem® – a potential mechanism for improved outcome. Pneumologie 2014. [DOI: 10.1055/s-0034-1376840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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39
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Pretreatment with donor alloantigen and anti-CD4-antibody 28 days befor lung transplantation leads to immunization rather than tolerance in miniature pigs. Thorac Cardiovasc Surg 2014. [DOI: 10.1055/s-0034-1367312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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40
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Microenvironment of preservation solution in lung transplantation – warm perfusion on OCS vs. cold static storage. Thorac Cardiovasc Surg 2013. [DOI: 10.1055/s-0032-1332403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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41
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987 Molecular Mechanisms of Sorafenib-induced Apoptosis in Cancer Cells. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71605-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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42
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Messung der Schalleitgeschwindigkeit in der Mammasonographie – Machbarkeitsstudie zur Anwendung zonaren Ultraschalls in der Routine. Geburtshilfe Frauenheilkd 2008. [DOI: 10.1055/s-0028-1088686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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43
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Self-tolerance of human natural killer cells lacking self-HLA-specific inhibitory receptors. Scand J Immunol 2008; 67:218-29. [PMID: 18226015 DOI: 10.1111/j.1365-3083.2007.02058.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Natural killer (NK) cells identify cells with altered human leucocyte antigen (HLA) expression as targets through lacking engagement of self-HLA-specific inhibitory receptors (e.g. killer cell immunoglobulin-like receptor, KIR). Thus, they eliminate cells with 'missing self' because of viral or malignant transformation. We performed analysis of HLA, KIR genotypes and KIR receptor expression patterns at single cell level in NK cells in 17 donors. The function of NK cell subsets is determined by degranulation assays using target cells expressing self, cognate, control or no HLA class I. Donors could be grouped into three groups: their NK cells possess potential for alloreactivity, autoreactivity based on the presence of NK cells expressing particular KIR only (mono-KIR) in the absence of its ligand or lack alloreactivity. All donors possess NK cells lacking all detectable inhibitory receptors. Both potential autoreactive subpopulations did not respond to HLA class I-positive target cells. They retain partial reactivity against HLA class I-negative tumour target cells. Mono-KIR NK cells without the corresponding ligands in the individuals and NK cells lacking all inhibitory receptors behave self-tolerant. Our results suggest alternative mechanisms than HLA-specific inhibitory receptors to control NK cell activity. But HLA seems to be involved in shaping effector function of the NK cell repertoire.
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CD4+CD25 high regulatory T-cells of patients with Multiple Sclerosis have a reduced suppressive effect on proliferation and cytokine secretion of responder T-cells. AKTUELLE NEUROLOGIE 2004. [DOI: 10.1055/s-2004-833321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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45
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[Heavy white coats are not the cause of physicians' headaches and shoulder pain]. Ugeskr Laeger 2001; 163:7271-2. [PMID: 11797560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
The weight of doctors' white coats was examined and correlated to the degree of headache and muscle pain in the shoulders. The coat weight of doctors was 1.5 kg (1.1 kg-1.9 kg) (median with 25%-75% in parenthesis). The highest weight was found in the coats of young physicians 2.0 kg (1.7 kg-2.2 kg), which was higher than those of young surgeons. No correlation was seen in the degree of headache and muscle pain in the shoulders. With the long walking distances in hospitals, it would seem that internal medicine is not only an intellectually, but also a physically, demanding job.
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The effects of PCB exposure and fish consumption on endogenous hormones. ENVIRONMENTAL HEALTH PERSPECTIVES 2001; 109:1275-1283. [PMID: 11748036 DOI: 10.2307/3454751] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Previous studies have suggested that exposure to polychlorinated biphenyls (PCBs) may alter thyroid function, but data on effects of PCB exposure on other endogenous hormones has been lacking. The current study is ancillary to a larger investigation of the effects of Great Lakes fish consumption on PCBs and reproductive function. In the current study we examine associations of PCBs, 1,1-bis (4-chlorophenyl)-2,2-dichloroethene (DDE), and fish consumption with thyroid and steroid hormones in 178 men and PCBs, DDE, and fish consumption with thyroid hormones in 51 women from the original study. Serum PCB level and consumption of Great Lakes fish are associated with significantly lower levels of thyroxine (T(4)) and free thyroxine index (FTI) in women and with significantly lower levels of T(4) in men. Fish consumption, but not PCB level, is significantly and inversely associated with triiodothyronine (T(3)) in men. Results for thyroid-stimulating hormone (TSH) are inconsistent. Among men, there are significant inverse associations of both PCB and fish consumption with sex hormone-binding globulin (SHBG)-bound testosterone, but no association with SHBG or free testosterone. There are no significant overall associations of PCB, DDE, or fish consumption with estrone sulfate, follicle-stimulating hormone, luteinizing hormone, or dehydroepiandrosterone sulfate. The results of this study are consistent with previous studies showing effects of fish consumption and PCB exposure on thyroid hormones and suggest that PCBs may also decrease steroid binding to SHBG. Elucidation of specific mechanisms must await future investigations.
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The effects of PCB exposure and fish consumption on endogenous hormones. ENVIRONMENTAL HEALTH PERSPECTIVES 2001; 109:1275-83. [PMID: 11748036 PMCID: PMC1240511 DOI: 10.1289/ehp.011091275] [Citation(s) in RCA: 123] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Previous studies have suggested that exposure to polychlorinated biphenyls (PCBs) may alter thyroid function, but data on effects of PCB exposure on other endogenous hormones has been lacking. The current study is ancillary to a larger investigation of the effects of Great Lakes fish consumption on PCBs and reproductive function. In the current study we examine associations of PCBs, 1,1-bis (4-chlorophenyl)-2,2-dichloroethene (DDE), and fish consumption with thyroid and steroid hormones in 178 men and PCBs, DDE, and fish consumption with thyroid hormones in 51 women from the original study. Serum PCB level and consumption of Great Lakes fish are associated with significantly lower levels of thyroxine (T(4)) and free thyroxine index (FTI) in women and with significantly lower levels of T(4) in men. Fish consumption, but not PCB level, is significantly and inversely associated with triiodothyronine (T(3)) in men. Results for thyroid-stimulating hormone (TSH) are inconsistent. Among men, there are significant inverse associations of both PCB and fish consumption with sex hormone-binding globulin (SHBG)-bound testosterone, but no association with SHBG or free testosterone. There are no significant overall associations of PCB, DDE, or fish consumption with estrone sulfate, follicle-stimulating hormone, luteinizing hormone, or dehydroepiandrosterone sulfate. The results of this study are consistent with previous studies showing effects of fish consumption and PCB exposure on thyroid hormones and suggest that PCBs may also decrease steroid binding to SHBG. Elucidation of specific mechanisms must await future investigations.
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Fish consumption habits and advisory awareness among Fox River anglers. WMJ : OFFICIAL PUBLICATION OF THE STATE MEDICAL SOCIETY OF WISCONSIN 2000; 99:43-6. [PMID: 11149260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Eating PCB-contaminated fish caught from the Lower Fox River, northeast Wisconsin, has raised concern about the health risk to consumers, especially to children and unborn babies. The fish advisory published by the state of Wisconsin recommends which fish are safe to eat. However, there is reason to believe that many anglers, especially non-English speaking anglers, are not aware of the advisory and the possible health risks of eating contaminated fish. A face-to-face survey administered to 104 anglers fishing along the Fox River indicates that 17% of anglers eat some or all of the fish they catch and that 83% practice "catch and release." Almost all the anglers were not familiar with Wisconsin's fish advisory but had heard of the health risks from their local newspaper and TV. As a follow-up, a fish health advisory brochure specific to the Fox River was developed.
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Abstract
BACKGROUND Abnormalities in cardiac function, eg, arrhythmias and congestive heart failure, often accompany thyrotoxicosis. A relationship between thyroid hormone excess and the cardiac complications of angina pectoris and myocardial infarction (MI) remains largely speculative. METHODS The results of thyroid function studies on blood samples drawn from a total of 1049 patients (aged 40 years or older) immediately on emergency medical admission were related to frequencies of angina pectoris and myocardial infarction as determined according to current diagnostic algorithms. After 3 years, those patients who had initially presented with angina pectoris or acute MI were observed for subsequent coronary events; of these (n=185), 98% of the subjects (n=181) could be reevaluated. RESULTS On hospital admission, the relative rate of angina pectoris and MI was markedly high (odds ratio, 2.6; 95% confidence interval, 1.3-5.2; P=.007) in patients with elevated serum free and total triiodothyronine (T(3)) levels. An initially elevated free T(3) level was a risk factor for subsequent coronary events during the 3-year follow-up (adjusted odds ratio, 4.8; 95% confidence interval, 1.3-17.4; P=.02). CONCLUSIONS An elevation of serum free T(3) levels at hospital admission is associated with a 2.6-fold greater likelihood of the presence of a coronary event. Moreover, an initially elevated T(3) level is associated with a 3-fold higher risk of developing a subsequent coronary event during the next 3 years. Excess T(3) seemed to be a factor associated with the development and progression of acute myocardial ischemia.
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Body burden levels of dioxin, furans, and PCBs among frequent consumers of Great Lakes sport fish. The Great Lakes Consortium. ENVIRONMENTAL RESEARCH 1999; 80:S19-S25. [PMID: 10092416 DOI: 10.1006/enrs.1998.3906] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Dioxins, furans, and polychlorinated biphenyls (PCBs) are toxic, persist in the environment, and bioaccumulate to concentrations that can be harmful to humans. Sport anglers may be exposed to these residues via consumption of contaminated Great Lakes (GL) fish. The Health Departments of five GL states, Wisconsin, Michigan, Ohio, Illinois, and Indiana, formed a consortium to study body burden levels of chemical residues in fish consumers of Lakes Michigan, Huron, and Erie. In Fall 1993, a telephone survey was administered to sport angler households to obtain fish consumption habits and demographics. A blood sample was obtained from a portion of the study subjects. One hundred serum samples were analyzed for 8 dioxin, 10 furan, and 4 coplanar PCB congeners. Multiple linear regression was conducted to assess the predictability of the following covariates: GL sport fish species, age, BMI, gender, years sport fish consumed, and lake. Of the 100 subjects, there were 58 men; 35 consumed sport fish from Lake Michigan, 29 from Lake Huron, and 36 from Lake Erie. The overall average number of GL sport fish meals consumed in the previous 12 months was 43. Lake Erie male and female consumers, on average, ate more GL sport fish, a mean of 57 and 42 meals, respectively, than men and women from the other two lake subgroups. Median total dioxin toxic equivalents (TEq), total furan TEq, and total coplanar PCB TEq were higher among all men than all women (P=0.0001). Lake trout, salmon, age, BMI, and gender were significant regression predictors of log(total coplanar PCBs). Lake trout, age, gender, and lake were significant regression predictors of log(total furans). Age was the only significant predictor of total dioxin levels.
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