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Schaich CL, Leisman DE, Goldberg MB, Filbin MR, Khanna AK, Chappell MC. Dysfunction of the renin-angiotensin-aldosterone system in human septic shock. Peptides 2024; 176:171201. [PMID: 38555976 PMCID: PMC11060897 DOI: 10.1016/j.peptides.2024.171201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 03/20/2024] [Accepted: 03/27/2024] [Indexed: 04/02/2024]
Abstract
Sepsis and septic shock are global healthcare problems associated with mortality rates of up to 40% despite optimal standard-of-care therapy and constitute the primary cause of death in intensive care units worldwide. Circulating biomarkers of septic shock severity may represent a clinically relevant approach to individualize those patients at risk for worse outcomes early in the course of the disease, which may facilitate early and more precise interventions to improve the clinical course. However, currently used septic shock biomarkers, including lactate, may be non-specific and have variable impact on prognosis and/or disease management. Activation of the renin-angiotensin-aldosterone system (RAAS) is likely an early event in septic shock, and studies suggest that an elevated level of renin, the early and committed step in the RAAS cascade, is a better predictor of worse outcomes in septic shock, including mortality, than the current standard-of-care measure of lactate. Despite a robust increase in renin, other elements of the RAAS, including endogenous levels of Ang II, may fail to sufficiently increase to maintain blood pressure, tissue perfusion, and protective immune responses in septic shock patients. We review the current clinical literature regarding the dysfunction of the RAAS in septic shock and potential therapeutic approaches to improve clinical outcomes.
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Affiliation(s)
- Christopher L Schaich
- Hypertension & Vascular Research Center, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Daniel E Leisman
- Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Marcia B Goldberg
- Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Micheal R Filbin
- Department of Emergency Medicine, Massachusetts General Hospital,Boston, MA, USA
| | - Ashish K Khanna
- Hypertension & Vascular Research Center, Wake Forest University School of Medicine, Winston-Salem, NC, USA; Department of Anesthesiology, Section on Critical Care Medicine, Atrium Health Wake Forest Baptist Medical Center, USA; Outcomes Research Consortium, Cleveland, OH, USA
| | - Mark C Chappell
- Hypertension & Vascular Research Center, Wake Forest University School of Medicine, Winston-Salem, NC, USA.
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Nethathe GD, Lipman J, Anderson R, Fuller PJ, Feldman C. Glucocorticoids with or without fludrocortisone in septic shock: a narrative review from a biochemical and molecular perspective. Br J Anaesth 2024; 132:53-65. [PMID: 38030548 PMCID: PMC10797514 DOI: 10.1016/j.bja.2023.10.034] [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: 08/07/2023] [Revised: 10/20/2023] [Accepted: 10/24/2023] [Indexed: 12/01/2023] Open
Abstract
Two randomised controlled trials have reported a reduction in mortality when adjunctive hydrocortisone is administered in combination with fludrocortisone compared with placebo in septic shock. A third trial did not support this finding when hydrocortisone administered in combination with fludrocortisone was compared with hydrocortisone alone. The underlying mechanisms for this mortality benefit remain poorly understood. We review the clinical implications and potential mechanisms derived from laboratory and clinical data underlying the beneficial role of adjunctive fludrocortisone with hydrocortisone supplementation in septic shock. Factors including distinct biological effects of glucocorticoids and mineralocorticoids, tissue-specific and mineralocorticoid receptor-independent effects of mineralocorticoids, and differences in downstream signalling pathways between mineralocorticoid and glucocorticoid binding at the mineralocorticoid receptor could contribute to this interaction. Furthermore, pharmacokinetic and pharmacodynamic disparities exist between aldosterone and its synthetic counterpart fludrocortisone, potentially influencing their effects. Pending publication of well-designed, randomised controlled trials, a molecular perspective offers valuable insights and guidance to help inform clinical strategies.
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Affiliation(s)
- Gladness D Nethathe
- School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa; Department of Anaesthesia and Perioperative Medicine, Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia; Academy of Critical Care, Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia.
| | - Jeffrey Lipman
- Academy of Critical Care, Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia; Jamieson Trauma Institute and Intensive Care Services, Royal Brisbane and Women's Hospital, Butterfield Street, Herston, Brisbane, 4029, QLD, Australia; Nimes University Hospital, University of Montpellier, Nimes, France
| | - Ronald Anderson
- Department of Immunology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Peter J Fuller
- Endocrinology Unit, Monash Health, Centre for Endocrinology and Metabolism, Hudson Institute of Medical Research, Melbourne, VIC, Australia
| | - Charles Feldman
- School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
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Guzzo I, Paglialonga F. Critically ill children with septic shock: time to rediscover renin? Pediatr Nephrol 2023; 38:2907-2910. [PMID: 37087478 DOI: 10.1007/s00467-023-05985-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 04/10/2023] [Accepted: 04/10/2023] [Indexed: 04/24/2023]
Affiliation(s)
- Isabella Guzzo
- Pediatric Nephrology, Dialysis and Transplant Unit, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Fabio Paglialonga
- Pediatric Nephrology, Dialysis and Transplant Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
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Matsui H, Lopez IA, Ishiyama G, Ishiyama A. Immunohistochemical localization of glucocorticoid receptors in the human cochlea. Brain Res 2023; 1806:148301. [PMID: 36868509 PMCID: PMC10521330 DOI: 10.1016/j.brainres.2023.148301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 02/09/2023] [Accepted: 02/26/2023] [Indexed: 03/05/2023]
Abstract
In the present study we investigated the localization of glucocorticoid receptors (GCR) in the human inner ear using immunohistochemistry. Celloidin-embedded cochlear sections of patients with normal hearing (n = 5), patients diagnosed with MD (n = 5), and noise induced hearing loss (n = 5) were immunostained using GCR rabbit affinity-purified polyclonal antibodies and secondary fluorescent or HRP labeled antibodies. Digital fluorescent images were acquired using a light sheet laser confocal microscope. In celloidin-embedded sections GCR-IF was present in the cell nuclei of hair cells and supporting cells of the organ of Corti. GCR-IF was detected in cell nuclei of the Reisner's membrane. GCR-IF was seen in cell nuclei of the stria vascularis and the spiral ligament. GCR-IF was found in the spiral ganglia cell nuclei, however, spiral ganglia neurons showed no GCR-IF. Although GCRs were found in most cell nuclei of the cochlea, the intensity of IF was differential among the different cell types being more intense in supporting cells than in sensory hair cells. The differential expression of GCR receptors found in the human cochlea may help to understand the site of action of glucocorticoids in different ear diseases.
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Affiliation(s)
- Hirooki Matsui
- Department of Head and Neck Surgery, David Geffen School of Medicine at UCLA, University of California, Los Angeles, USA; Department of Otolaryngology, Head and Neck Surgery, Yamagata University School of Medicine, Yamagata, Japan
| | - Ivan A Lopez
- Department of Head and Neck Surgery, David Geffen School of Medicine at UCLA, University of California, Los Angeles, USA.
| | - Gail Ishiyama
- Department of Neurology. David Geffen School of Medicine at UCLA, University of California, Los Angeles, USA
| | - Akira Ishiyama
- Department of Head and Neck Surgery, David Geffen School of Medicine at UCLA, University of California, Los Angeles, USA
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Briegel J, Möhnle P, Keh D, Lindner JM, Vetter AC, Bogatsch H, Lange D, Frank S, Hinske LC, Annane D, Vogeser M, Bauer M, Brenner T, Meybohm P, Weigand M, Gründling M, Löffler M, Kiehntopf M, Bloos F, Elke G, Meersch-Dini M, Putensen C, Kaasch A, Kluge S. Corticotropin-stimulated steroid profiles to predict shock development and mortality in sepsis: From the HYPRESS study. Crit Care 2022; 26:343. [DOI: 10.1186/s13054-022-04224-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 10/28/2022] [Indexed: 11/09/2022] Open
Abstract
Abstract
Rationale
Steroid profiles in combination with a corticotropin stimulation test provide information about steroidogenesis and its functional reserves in critically ill patients.
Objectives
We investigated whether steroid profiles before and after corticotropin stimulation can predict the risk of in-hospital death in sepsis.
Methods
An exploratory data analysis of a double blind, randomized trial in sepsis (HYPRESS [HYdrocortisone for PRevention of Septic Shock]) was performed. The trial included adult patients with sepsis who were not in shock and were randomly assigned to placebo or hydrocortisone treatment. Corticotropin tests were performed in patients prior to randomization and in healthy subjects. Cortisol and precursors of glucocorticoids (17-OH-progesterone, 11-desoxycortisol) and mineralocorticoids (11-desoxycorticosterone, corticosterone) were analyzed using the multi-analyte stable isotope dilution method (LC–MS/MS). Measurement results from healthy subjects were used to determine reference ranges, and those from placebo patients to predict in-hospital mortality.
Measurements and main results
Corticotropin tests from 180 patients and 20 volunteers were included. Compared to healthy subjects, patients with sepsis had elevated levels of 11-desoxycorticosterone and 11-desoxycortisol, consistent with activation of both glucocorticoid and mineralocorticoid pathways. After stimulation with corticotropin, the cortisol response was subnormal in 12% and the corticosterone response in 50% of sepsis patients. In placebo patients (n = 90), a corticotropin-stimulated cortisol-to-corticosterone ratio > 32.2 predicted in-hospital mortality (AUC 0.8 CI 0.70–0.88; sensitivity 83%; and specificity 78%). This ratio also predicted risk of shock development and 90-day mortality.
Conclusions
In this exploratory analysis, we found that in sepsis mineralocorticoid steroidogenesis was more frequently impaired than glucocorticoid steroidogenesis. The corticotropin-stimulated cortisol-to-corticosterone ratio predicts the risk of in-hospital death.
Trial registration Clinical trial registered with www.clinicaltrials.gov Identifier: NCT00670254. Registered 1 May 2008, https://clinicaltrials.gov/ct2/show/NCT00670254.
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Renin as a Marker of Tissue Perfusion, Septic Shock and Mortality in Septic Patients: A Prospective Observational Study. Int J Mol Sci 2022; 23:ijms23169133. [PMID: 36012398 PMCID: PMC9409106 DOI: 10.3390/ijms23169133] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/10/2022] [Accepted: 08/12/2022] [Indexed: 11/16/2022] Open
Abstract
Sepsis is a life-threatening organ dysfunction caused by the dysregulation of the host’s response to an infection, where the dominant mechanism is tissue hypoperfusion. Currently, the marker used to define tissue disorders is lactate levels, which may be elevated in other disease states as well. Renin is an essential hormone for the proper functioning of the renin-angiotensin-aldosterone (RASS) system. It is secreted in the glomerular apparatus in response to hypoperfusion. This study aimed to assess the usefulness of renin as a marker of tissue hypoperfusion in patients with sepsis and septic shock. A final group of 48 patients treated for sepsis and septic shock in the intensive care unit was included. Blood samples for renin quantification were collected in the morning as a part of routine blood analysis on the first, third, and fifth days. Sepsis was diagnosed in 19 patients (39.6%), and septic shock was diagnosed in 29 patients (60.4%). There was no significant difference in renin concentration between patients who received and did not receive continuous renal replacement therapy (CRRT) on any study day. Therefore, all samples were analyzed together in subsequent analyses. There was a significant difference in renin concentration between sepsis survivors and non-survivors on the third (31.5 and 119.9 pg/mL, respectively) and fifth (18.2 and 106.7 pg/mL, respectively) days. As a survival marker, renin was characterized by 69% and 71% overall accuracy if determined on the third and fifth days, respectively. There was a significant difference in renin concentration between sepsis and septic shock patients on the first (45.8 and 103.4 pg/mL, respectively) and third (24.7 and 102.1 pg/mL, respectively) days. At an optimal cut-off of 87 pg/mL, renin had very good specificity and a positive likelihood ratio. Renin was a strong predictor of mortality in patients with sepsis and septic shock. Further, the level of renin in patients with septic shock was significantly higher than in patients with sepsis. In combination with the assessment of lactate concentration, renin seems to be the optimal parameter for monitoring tissue hypoperfusion and could be helpful for septic shock diagnosis, as well as for identifying candidate patients for CRRT.
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Nedel W, Lisboa T, Salluh JIF. What Is the Role of Steroids for Septic Shock in 2021? Semin Respir Crit Care Med 2021; 42:726-734. [PMID: 34544190 DOI: 10.1055/s-0041-1733900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Corticosteroids have been used for decades in the adjunctive treatment of severe infections in intensive care. The most frequent scenario in intensive care is in septic shock, where low doses of glucocorticoids appear to restore vascular responsiveness to norepinephrine. There is a strong body of evidence suggesting that hydrocortisone reduces time on vasopressor, and may modulate the immune response. In this review, we explore the current evidence supporting the use of corticosteroids in septic shock, its benefits, and potential harms. In addition to landmark clinical trials, we will also describe new frontiers for the use of corticosteroids in septic shock which should be explored in future studies.
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Affiliation(s)
- Wagner Nedel
- Programa de Pós-Graduação em Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Intensive Care Unit, Grupo Hospitalar Conceição, Porto Alegre, Brazil
| | - Thiago Lisboa
- Critical Care Department, Programa de Pós-Graduação em Ciencias Pneumologicas, Hospital de Clinicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Programa de Pós-Graduação em Saúde e Desenvolvimento Humano, Universidade Unilasalle, Canoas, Brazil
- Instituto de Pesquisa, HCOR, São Paulo, Brazil
| | - Jorge I F Salluh
- Department of Critical Care and Postgraduate Program in Translational Medicine, D'Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
- Programa de Pós-Graduação em Clínica Médica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Vassiliou AG, Athanasiou N, Vassiliadi DA, Jahaj E, Keskinidou C, Kotanidou A, Dimopoulou I. Glucocorticoid and mineralocorticoid receptor expression in critical illness: A narrative review. World J Crit Care Med 2021; 10:102-111. [PMID: 34316445 PMCID: PMC8291002 DOI: 10.5492/wjccm.v10.i4.102] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/18/2021] [Accepted: 04/22/2021] [Indexed: 02/06/2023] Open
Abstract
The glucocorticoid receptor (GCR) and the mineralocorticoid receptor (MR) are members of the steroid receptor superfamily of hormone-dependent transcription factors. The receptors are structurally and functionally related. They are localized in the cytosol and translocate into the nucleus after ligand binding. GCRs and MRs can be co-expressed within the same cell, and it is believed that the balance in GCR and MR expression is crucial for homeostasis and plays a key role in normal adaptation. In critical illness, the hypothalamic-pituitary-adrenal axis is activated, and as a consequence, serum cortisol concentrations are high. However, a number of patients exhibit relatively low cortisol levels for the degree of illness severity. Glucocorticoid (GC) actions are facilitated by GCR, whose dysfunction leads to GC tissue resistance. The MR is unique in this family in that it binds to both aldosterone and cortisol. Endogenous GCs play a critical role in controlling inflammatory responses in critical illness. Intracellular GC concentrations can differ greatly from blood levels due to the action of the two 11β-hydroxysteroid dehydrogenase isozymes, type 1 and type 2. 11β-hydroxysteroid dehydrogenases interconvert endogenous active cortisol and intrinsically inert cortisone. The degree of expression of the two isozymes has the potential to dramatically influence local GC availability within cells and tissues. In this review, we will explore the clinical studies that aimed to elucidate the role of MR and GCR expression in the inflammatory response seen in critical illness.
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Affiliation(s)
- Alice G Vassiliou
- 1st Department of Critical Care Medicine & Pulmonary Services, School of Medicine, National & Kapodistrian University of Athens, “Evangelismos” Hospital, Athens 10676, Greece
| | - Nikolaos Athanasiou
- 1st Department of Critical Care Medicine & Pulmonary Services, School of Medicine, National & Kapodistrian University of Athens, “Evangelismos” Hospital, Athens 10676, Greece
| | - Dimitra A Vassiliadi
- Department of Endocrinology, Diabetes and Metabolism, “Evangelismos” Hospital, Athens 10676, Greece
| | - Edison Jahaj
- 1st Department of Critical Care Medicine & Pulmonary Services, School of Medicine, National & Kapodistrian University of Athens, “Evangelismos” Hospital, Athens 10676, Greece
| | - Chrysi Keskinidou
- 1st Department of Critical Care Medicine & Pulmonary Services, School of Medicine, National & Kapodistrian University of Athens, “Evangelismos” Hospital, Athens 10676, Greece
| | - Anastasia Kotanidou
- 1st Department of Critical Care Medicine & Pulmonary Services, School of Medicine, National & Kapodistrian University of Athens, “Evangelismos” Hospital, Athens 10676, Greece
| | - Ioanna Dimopoulou
- 1st Department of Critical Care Medicine & Pulmonary Services, School of Medicine, National & Kapodistrian University of Athens, “Evangelismos” Hospital, Athens 10676, Greece
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Wang ZY, Wang M, Guo JJ, Gao YL, Yu XF. Acute bilateral cerebral infarction in the presence of neuromyelitis optica spectrum disorder: A case report. Medicine (Baltimore) 2020; 99:e22616. [PMID: 33019482 PMCID: PMC7535662 DOI: 10.1097/md.0000000000022616] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
RATIONALE Neuromyelitis optica spectrum disorders (NMOSDs) are inflammatory demyelinating disorders of the central nervous system; they are characterized by severe optic neuritis and transverse myelitis. Intravenous methylprednisolone pulse (IVMP) therapy is an effective treatment that is administered to patients in the acute phase of NMOSD; this therapy has achieved remarkable results in clinical practice. However, there are no reports on NMOSD patients who have experienced an acute bilateral cerebral infarction while undergoing IVMP treatment. PATIENT CONCERNS We report on a 62-yr-old woman who was undergoing IVMP therapy for the primary diagnosis of NMOSD. Unexpectedly, the patient's existing limb weakness worsened, and she developed motor aphasia on the second day of IVMP treatment. Additionally, brain magnetic resonance imaging revealed acute bilateral cerebral infarction. DIAGNOSIS The patient's clinical manifestations, medical imaging results, and laboratory test results were taken into consideration; the final diagnosis was acute bilateral cerebral infarction in the presence of NMOSD. INTERVENTIONS Subsequent to the onset of acute cerebral infarction, the patient was immediately treated with oral aspirin, atorvastatin, and intravenous butylphthalide. The hormone dose was adjusted to an oral 60-mg/d dose for maintenance; this was followed by immunoadsorption plasmapheresis for 3 days, and double-filtration plasmapheresis for 2 days. OUTCOMES Following treatment onset, the patient's ocular symptoms significantly improved, and her limb muscle strength gradually recovered. Two months after discharge, the patient's husband reported that she was able to walk with the help of others and take care of herself, and that there was no recurrence. LESSONS Medical professionals must be aware of the possibility of NMOSD patients with cerebrovascular risk factors suffering an acute cerebral infarction while undergoing high-dose IVMP therapy, as this therapy can exacerbate existing problems.
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