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Domizi R, Damiani E, Scorcella C, Carsetti A, Giaccaglia P, Casarotta E, Montomoli J, Gabbanelli V, Brugia M, Moretti M, Adrario E, Donati A. Mid-Regional Proadrenomedullin (MR-proADM) and Microcirculation in Monitoring Organ Dysfunction of Critical Care Patients With Infection: A Prospective Observational Pilot Study. Front Med (Lausanne) 2021; 8:680244. [PMID: 34917627 PMCID: PMC8669477 DOI: 10.3389/fmed.2021.680244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 10/25/2021] [Indexed: 01/20/2023] Open
Abstract
Introduction: Microvascular alterations are involved in the development of organ injury in critical care patients. Mid-regional proadrenomedullin (MR-proADM) may predict organ damage and its evolution. The main objective of this study was to assess the correlation between MR-proADM and microvascular flow index (MFI) in a small cohort of 20 adult critical care patients diagnosed with infection, sepsis, or septic shock. Further objectives were to evaluate the correlation between the clearance of MR-proADM and the variables of microcirculation and between MR-proADM and the Sequential Organ Failure Assessment (SOFA) score. Materials and Methods: This is a prospective observational pilot study. Inclusion criteria: consecutive adult patients admitted to intensive care unit (ICU) for or with infection-related illness. Daily measurement of MR-proADM and calculation of the SOFA score from admission in ICU to day 5. Repeated evaluations of sublingual microcirculation, collection of clinical data, and laboratory tests. Results: Primary outcome: MR-proADM was not significantly correlated to the MFI at admission in ICU. A clearance of MR-proADM of 20% or more in the first 24 h was related to the improvement of the MFIs and MFIt [percentual variation of the MFIs + 12.35 (6.01–14.59)% vs. +2.23 (−4.45–6.01)%, p = 0.005; MFIt +9.09 (4.53–16.26)% vs. −1.43 (−4.36–3.12)%, p = 0.002]. Conclusion: This study did not support a direct correlation of MR-proADM with the MFI at admission in ICU; however, it showed a good correlation between the clearance of MR-proADM, MFI, and other microvascular variables. This study also supported the prognostic value of the marker. Adequately powered studies should be performed to confirm the findings.
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Affiliation(s)
- Roberta Domizi
- Anesthesia and Intensive Care Unit, Azienda Ospedaliera Universitaria Ospedali Riuniti, Ancona, Italy
| | - Elisa Damiani
- Anesthesia and Intensive Care Unit, Azienda Ospedaliera Universitaria Ospedali Riuniti, Ancona, Italy.,Department of Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona, Italy
| | - Claudia Scorcella
- Anesthesia and Intensive Care Unit, Azienda Ospedaliera Universitaria Ospedali Riuniti, Ancona, Italy
| | - Andrea Carsetti
- Anesthesia and Intensive Care Unit, Azienda Ospedaliera Universitaria Ospedali Riuniti, Ancona, Italy.,Department of Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona, Italy
| | - Paolo Giaccaglia
- Anesthesia and Intensive Care Unit, Azienda Ospedaliera Universitaria Ospedali Riuniti, Ancona, Italy.,Department of Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona, Italy
| | - Erika Casarotta
- Anesthesia and Intensive Care Unit, Azienda Ospedaliera Universitaria Ospedali Riuniti, Ancona, Italy.,Department of Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona, Italy
| | - Jonathan Montomoli
- Anesthesia and Intensive Care Unit, Azienda Ospedaliera Universitaria Ospedali Riuniti, Ancona, Italy.,Department of Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona, Italy
| | - Vincenzo Gabbanelli
- Anesthesia and Intensive Care Unit, Azienda Ospedaliera Universitaria Ospedali Riuniti, Ancona, Italy
| | - Marina Brugia
- Laboratory Medicine, Azienda Ospedaliera Universitaria Ospedali Riuniti Ancona, Ancona, Italy
| | - Marco Moretti
- Laboratory Medicine, Azienda Ospedaliera Universitaria Ospedali Riuniti Ancona, Ancona, Italy
| | - Erica Adrario
- Anesthesia and Intensive Care Unit, Azienda Ospedaliera Universitaria Ospedali Riuniti, Ancona, Italy.,Department of Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona, Italy
| | - Abele Donati
- Anesthesia and Intensive Care Unit, Azienda Ospedaliera Universitaria Ospedali Riuniti, Ancona, Italy.,Department of Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona, Italy
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Rudnov VA, Moldovanov AV, Astafieva MN, Perevalova EY. The clinical significance of proadrenomedulin level in blood in sepsis patients. MESSENGER OF ANESTHESIOLOGY AND RESUSCITATION 2019. [DOI: 10.21292/2078-5658-2019-16-5-36-42] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- V. A. Rudnov
- Ural State Medical University; City Clinical Hospital no. 40
| | | | - M. N. Astafieva
- Ural State Medical University; City Clinical Hospital no. 40
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Elke G, Bloos F, Wilson DC, Brunkhorst FM, Briegel J, Reinhart K, Loeffler M, Kluge S, Nierhaus A, Jaschinski U, Moerer O, Weyland A, Meybohm P. The use of mid-regional proadrenomedullin to identify disease severity and treatment response to sepsis - a secondary analysis of a large randomised controlled trial. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2018; 22:79. [PMID: 29562917 PMCID: PMC5863464 DOI: 10.1186/s13054-018-2001-5] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Accepted: 02/19/2018] [Indexed: 02/08/2023]
Abstract
Background This study assessed the ability of mid-regional proadrenomedullin (MR-proADM) in comparison to conventional biomarkers (procalcitonin (PCT), lactate, C-reactive protein) and clinical scores to identify disease severity in patients with sepsis. Methods This is a secondary analysis of a randomised controlled trial in patients with severe sepsis or septic shock across 33 German intensive care units. The association between biomarkers and clinical scores with mortality was assessed by Cox regression analysis, area under the receiver operating characteristic and Kaplan-Meier curves. Patients were stratified into three severity groups (low, intermediate, high) for all biomarkers and scores based on cutoffs with either a 90% sensitivity or specificity. Results 1089 patients with a 28-day mortality rate of 26.9% were analysed. According to the Sepsis-3 definition, 41.2% and 58.8% fulfilled the criteria for sepsis and septic shock, with respective mortality rates of 20.0% and 32.1%. MR-proADM had the strongest association with mortality across all Sepsis-1 and Sepsis-3 subgroups and could facilitate a more accurate classification of low (e.g. MR-proADM vs. SOFA: N = 265 vs. 232; 9.8% vs. 13.8% mortality) and high (e.g. MR-proADM vs. SOFA: N = 161 vs. 155; 55.9% vs. 41.3% mortality) disease severity. Patients with decreasing PCT concentrations of either ≥ 20% (baseline to day 1) or ≥ 50% (baseline to day 4) but continuously high MR-proADM concentrations had a significantly increased mortality risk (HR (95% CI): 19.1 (8.0–45.9) and 43.1 (10.1–184.0)). Conclusions MR-proADM identifies disease severity and treatment response more accurately than established biomarkers and scores, adding additional information to facilitate rapid clinical decision-making and improve personalised sepsis treatment. Electronic supplementary material The online version of this article (10.1186/s13054-018-2001-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Gunnar Elke
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Center Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3 Haus 12, 24105, Kiel, Germany.
| | - Frank Bloos
- Department of Anesthesiology and Intensive Care Medicine, Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany.,Center for Sepsis Control & Care (CSCC), Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany
| | | | - Frank Martin Brunkhorst
- Department of Anesthesiology and Intensive Care Medicine, Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany.,Center for Sepsis Control & Care (CSCC), Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany
| | - Josef Briegel
- Department of Anaesthesiology, University Hospital Munich, Marchioninistrasse 15, 81377, Munich, Germany
| | - Konrad Reinhart
- Department of Anesthesiology and Intensive Care Medicine, Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany.,Center for Sepsis Control & Care (CSCC), Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany
| | - Markus Loeffler
- Clinical Trial Centre Leipzig, University of Leipzig, Härtelstraße 16-18, 04107, Leipzig, Germany
| | - Stefan Kluge
- Department of Intensive Care Medicine, University Hospital Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany
| | - Axel Nierhaus
- Department of Intensive Care Medicine, University Hospital Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany
| | - Ulrich Jaschinski
- Department of Anaesthesiology and Surgical Intensive Care Medicine, Hospital Augsburg, Stenglinstrasse 2, 86156, Augsburg, Germany
| | - Onnen Moerer
- Department of Anaesthesiology, University Hospital Göttingen, Robert-Koch-Str. 40, 37099, Göttingen, Germany
| | - Andreas Weyland
- University Department for Anesthesia, Intensive and Emergency Medicine and Pain Management, Hospital Oldenburg, Rahel-Straus-Str. 10, 26133, Oldenburg, Germany
| | - Patrick Meybohm
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
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Müller-Redetzky HC, Lienau J, Witzenrath M. The Lung Endothelial Barrier in Acute Inflammation. THE VERTEBRATE BLOOD-GAS BARRIER IN HEALTH AND DISEASE 2015. [PMCID: PMC7123850 DOI: 10.1007/978-3-319-18392-3_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Müller-Redetzky HC, Will D, Hellwig K, Kummer W, Tschernig T, Pfeil U, Paddenberg R, Menger MD, Kershaw O, Gruber AD, Weissmann N, Hippenstiel S, Suttorp N, Witzenrath M. Mechanical ventilation drives pneumococcal pneumonia into lung injury and sepsis in mice: protection by adrenomedullin. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2014; 18:R73. [PMID: 24731244 PMCID: PMC4056010 DOI: 10.1186/cc13830] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Accepted: 04/03/2014] [Indexed: 01/04/2023]
Abstract
Introduction Ventilator-induced lung injury (VILI) contributes to morbidity and mortality in acute respiratory distress syndrome (ARDS). Particularly pre-injured lungs are susceptible to VILI despite protective ventilation. In a previous study, the endogenous peptide adrenomedullin (AM) protected murine lungs from VILI. We hypothesized that mechanical ventilation (MV) contributes to lung injury and sepsis in pneumonia, and that AM may reduce lung injury and multiple organ failure in ventilated mice with pneumococcal pneumonia. Methods We analyzed in mice the impact of MV in established pneumonia on lung injury, inflammation, bacterial burden, hemodynamics and extrapulmonary organ injury, and assessed the therapeutic potential of AM by starting treatment at intubation. Results In pneumococcal pneumonia, MV increased lung permeability, and worsened lung mechanics and oxygenation failure. MV dramatically increased lung and blood cytokines but not lung leukocyte counts in pneumonia. MV induced systemic leukocytopenia and liver, gut and kidney injury in mice with pneumonia. Lung and blood bacterial burden was not affected by MV pneumonia and MV increased lung AM expression, whereas receptor activity modifying protein (RAMP) 1–3 expression was increased in pneumonia and reduced by MV. Infusion of AM protected against MV-induced lung injury (66% reduction of pulmonary permeability p < 0.01; prevention of pulmonary restriction) and against VILI-induced liver and gut injury in pneumonia (91% reduction of AST levels p < 0.05, 96% reduction of alanine aminotransaminase (ALT) levels p < 0.05, abrogation of histopathological changes and parenchymal apoptosis in liver and gut). Conclusions MV paved the way for the progression of pneumonia towards ARDS and sepsis by aggravating lung injury and systemic hyperinflammation leading to liver, kidney and gut injury. AM may be a promising therapeutic option to protect against development of lung injury, sepsis and extrapulmonary organ injury in mechanically ventilated individuals with severe pneumonia.
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Dynamics of pulmonary endothelial barrier function in acute inflammation: mechanisms and therapeutic perspectives. Cell Tissue Res 2014; 355:657-73. [PMID: 24599335 PMCID: PMC7102256 DOI: 10.1007/s00441-014-1821-0] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 01/16/2014] [Indexed: 12/11/2022]
Abstract
The lungs provide a large inner surface to guarantee respiration. In lung alveoli, a delicate membrane formed by endo- and epithelial cells with their fused basal lamina ensures rapid and effective gas exchange between alveolar and vascular compartments while concurrently forming a robust barrier against inhaled particles and microbes. However, upon infectious or sterile inflammatory stimulation, tightly regulated endothelial barrier leakiness is required for leukocyte transmigration. Further, endothelial barrier disruption may result in uncontrolled extravasation of protein-rich fluids. This brief review summarizes some important mechanisms of pulmonary endothelial barrier regulation and disruption, focusing on the role of specific cell populations, coagulation and complement cascades and mediators including angiopoietins, specific sphingolipids, adrenomedullin and reactive oxygen and nitrogen species for the regulation of pulmonary endothelial barrier function. Further, current therapeutic perspectives against development of lung injury are discussed.
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Temmesfeld-Wollbrück B, Brell B, zu Dohna C, Dorenberg M, Hocke AC, Martens H, Klar J, Suttorp N, Hippenstiel S. Adrenomedullin reduces intestinal epithelial permeability in vivo and in vitro. Am J Physiol Gastrointest Liver Physiol 2009; 297:G43-51. [PMID: 19423749 DOI: 10.1152/ajpgi.90532.2008] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Leakage of the gut mucosal barrier in the critically ill patient may allow translocation of bacteria and their virulence factors, thereby perpetuating sepsis and inflammation. Present evidence suggests that adrenomedullin (AM) improves endothelial barrier function and stabilizes circulatory function in systemic inflammation. We tested the hypothesis that exogenously applied AM stabilizes gut epithelial barrier function. Infusion of Staphylococcus aureus alpha-toxin induced septic shock in rats. AM infusion in a therapeutic setting reduced translocation of labeled dextran from the gut into the systemic circulation in this model. AM also reduced alpha-toxin and hydrogen peroxide (H2O2)-related barrier disruption in Caco-2 cells in vitro and reduced H2O2-related rat colon barrier malfunction in Ussing chamber experiments. AM was shown to protect endothelial barrier function via cAMP elevation, but AM failed to induce cAMP accumulation in Caco-2 cells. cAMP is degraded via phosphodiesterases (PDE), and Caco-2 cells showed high activity of cAMP-degrading PDE3 and 4. However, AM failed to induce cAMP accumulation in Caco-2 cells even in the presence of sufficient PDE3/4 inhibition, whereas adenylyl cyclase activator forskolin induced strong cAMP elevation. Furthermore, PDE3/4 inhibition neither amplified AM-induced epithelial barrier stabilization nor affected AM cAMP-related rat colon short-circuit current, furthermore indicating that AM may act independently of cAMP in Caco-2 cells. Finally, experiments using chemical inhibitors indicated that PKC, phosphatidylinositide 3-kinase, p38, and ERK did not contribute to AM-related stabilization of barrier function in Caco-2 cells. In summary, during severe inflammation, elevated AM levels may substantially contribute to the stabilization of gut barrier function.
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Affiliation(s)
- Bettina Temmesfeld-Wollbrück
- Departments of Internal Medicine and Infectious Diseases, Charité-Universitätsmedizin Berlin, Berlin 13353, Germany
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Abstract
OBJECTIVE To test the hypothesis that persistent villi hypoperfusion explains intramucosal acidosis after endotoxemic shock resuscitation. DESIGN Controlled experimental study. SETTING University-based research laboratory. SUBJECTS A total of 14 anesthetized, mechanically ventilated sheep. INTERVENTIONS Sheep were randomly assigned to endotoxin (n = 7) or control groups (n = 7). The endotoxin group received 5 microg/kg endotoxin, followed by 4 microg x kg(-1) x hr(-1) for 150 mins. After 60 mins of shock, hydroxyethylstarch resuscitation was given to normalize oxygen transport for an additional 90 mins. MEASUREMENTS AND MAIN RESULTS Endotoxin infusion decreased mean arterial blood pressure, cardiac output, and superior mesenteric artery blood flow (96 +/- 10 vs. 51 +/- 20 mm Hg, 145 +/- 30 vs. 90 +/- 30 mL x min(-1) x kg(-1), and 643 +/- 203 vs. 317 +/- 93 mL x min(-1) x kg(-1), respectively; p < .05 vs. basal), whereas it increased intramucosal-arterial PCO2 (deltaPCO2) and arterial lactate (3 +/- 3 vs. 14 +/- 8 mm Hg, and 1.5 +/- 0.5 vs. 3.7 +/- 1.3 mmol/L; p < .05). Sublingual, and serosal and mucosal intestinal microvascular flow indexes, and the percentage of perfused ileal villi were reduced (3.0 +/- 0.1 vs. 2.3 +/- 0.4, 3.2 +/- 0.2 vs. 2.4 +/- 0.6, 3.0 +/- 0.0 vs. 2.0 +/- 0.2, and 98% +/- 3% vs. 76% +/- 10%; p < .05). Resuscitation normalized mean arterial blood pressure (92 +/- 13 mm Hg), cardiac output (165 +/- 32 mL x min(-1) x kg(-1)), superior mesenteric artery blood flow (683 +/- 192 mL x min(-1) x kg(-1)), and sublingual and serosal intestinal microvascular flow indexes (2.8 +/- 0.5 and 3.5 +/- 0.7). Nevertheless, deltaPCO2, lactate, mucosal intestinal microvascular flow indexes, and percentage of perfused ileal villi remained altered (10 +/- 6 mm Hg, 3.7 +/- 0.9 mmol/L, 2.3 +/- 0.4, and 78% +/- 11%; p < .05). CONCLUSIONS In this model of endotoxemia, fluid resuscitation corrected both serosal intestinal and sublingual microcirculation but was unable to restore intestinal mucosal perfusion. Intramucosal acidosis might be due to persistent villi hypoperfusion.
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İseri SÖ, Ersoy Y, Gedik N, Ercan F, Alican İ. Protective role of adrenomedullin in burn-induced remote organ damage in the rat. ACTA ACUST UNITED AC 2008; 146:99-105. [DOI: 10.1016/j.regpep.2007.08.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2007] [Revised: 08/22/2007] [Accepted: 08/23/2007] [Indexed: 11/17/2022]
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Temmesfeld-Wollbrück B, Brell B, Dávid I, Dorenberg M, Adolphs J, Schmeck B, Suttorp N, Hippenstiel S. Adrenomedullin reduces vascular hyperpermeability and improves survival in rat septic shock. Intensive Care Med 2007; 33:703-10. [PMID: 17318497 DOI: 10.1007/s00134-007-0561-y] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2006] [Accepted: 01/26/2007] [Indexed: 01/20/2023]
Abstract
OBJECTIVE Current therapies of sepsis and septic shock require administration of a large volume of fluid to maintain hemodynamic stability. The vasoregulatory peptide adrenomedullin has been shown to prevent the transition to the fatal hypocirculatory septic state by poorly understood mechanisms. We tested the hypothesis that therapeutic administration of adrenomedullin would reduce vascular hyperpermeability, thereby contributing to improved hemodynamics and survival. DESIGN Prospective randomized controlled animal study. SUBJECTS Male Sprague-Dawley rats (270 g). INTERVENTIONS We used 4.8 x 10(3) U/kg of Staphylococcus aureus alpha-toxin, a pore-forming exotoxin, to induce vascular leakage and circulatory shock in rats. The infusion rate was 24 microg/kg per hour. Adrenomedullin was started 1 h after alpha-toxin administration. MEASUREMENT AND RESULTS Infusion of alpha-toxin in rats induced cardiocirculatory failure resulting in a 6-h mortality of 53%. alpha-Toxin provoked massive vascular hyperpermeability, which was indicated by an enrichment of Evans blue dye albumin in the tissues of lung, liver, ileum and kidney. Plasma fluid loss led to a significant hemoconcentration. Hemodynamic impairment observed after alpha-toxin infusion was closely correlated to vascular hyperpermeability. Therapeutic administration of 24 microg/kg per hour adrenomedullin reduced 6-h mortality from 53% to 7%. Stabilization of the endothelial barrier by adrenomedullin was indicated by reduced extravasation of albumin and plasma fluid and may have contributed to hemodynamic improvement. CONCLUSIONS These data suggest that adrenomedullin-related reduction of vascular hyperpermeability might represent a novel and important mechanism contributing to the beneficial effects of this endogenous vasoregulatory peptide in sepsis and septic shock.
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Affiliation(s)
- Bettina Temmesfeld-Wollbrück
- Department of Internal Medicine/Infectious Diseases and Respiratory Medicine, Charité-University Medicine Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
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