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Maiden MJ, Forehan S. The use of triiodothyronine during critical illness. Curr Opin Clin Nutr Metab Care 2024; 27:163-167. [PMID: 38170688 DOI: 10.1097/mco.0000000000001012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
PURPOSE OF REVIEW Thyroid hormone physiology changes during critical illness. Circulating concentration of triiodothyronine (T3), the active form of thyroid hormone decreases. It has long been uncertain whether this represents a pathologic change or if it is an adaptive phenomenon. Controlled clinical trials have been required to understand whether replacing and restoring serum T3 levels is therapeutic. RECENT FINDINGS Clinical trials of T3 have recently been proposed with some completed. These have been conducted in patients with sepsis, myocardial infarction, infants undergoing cardiac surgery, and acute respiratory distress syndrome. Of the completed trials, T3 administration restored serum concentrations, but was not accompanied by significant clinical benefit. Importantly, restoring serum T3 levels did not cause any adverse effects. SUMMARY If T3 is to be considered a therapeutic target in critical illness, further studies should consider the stage of disease it is administered, and whether there are other surrogate measures to assess adequacy of hormone replacement over and above serum T3 concentrations.
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Affiliation(s)
- Matthew J Maiden
- Intensive Care Unit, The Royal Melbourne Hospital
- Department of Critical Care, The University of Melbourne
| | - Simon Forehan
- Department of Diabetes & Endocrinology, The Royal Melbourne Hospital, Victoria, Australia
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Correlation between Thyroid Responses and Inflammatory Cytokines in Critically Ill COVID-19 Patients. Biomedicines 2022; 11:biomedicines11010026. [PMID: 36672534 PMCID: PMC9855627 DOI: 10.3390/biomedicines11010026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/11/2022] [Accepted: 12/15/2022] [Indexed: 12/25/2022] Open
Abstract
Mechanisms involved in thyroid dysfunction in critically ill coronavirus disease 2019 (COVID-19) patients are not clear. Our objective was to correlate the thyroid response with the pro- and anti-inflammatory cytokines profile in critically ill COVID-19 patients. This was a prospective single-center study. We studied the relationship between continuous variables by using Pearson correlation and simple linear regression. Multiple logistic regression analysis was performed to analyze the factors independently associated with mortality. Seventy-eight patients were included in the study at intensive care unit (ICU) admission and 72 had a measurement of the thyroid and inflammatory profile at day 5. No significant correlations were found between thyroid stimulating hormone (TSH), free triiodothyronine (fT3) and free thyroxine (fT4) and inflammatory cytokines at ICU admission. At day 5, fT4, was inversely correlated with IL-10 (p = 0.035). IL-10 was associated with maximum lactate (p < 0.001) and SOFA score values (p = 0.012). The multiple logistic regression analysis showed that there was a significant relationship between IL-10 (day 5) and in-hospital mortality after adjusting by age and severity of illness. In conclusion, we found that the thyroid hormone profile and inflammatory cytokines had a weak correlation at ICU admission. Associations of interest between fT4 and IL-10 were found at day 5. IL-10 at day 5 was found to be correlated with low fT4 and markers of organ failure and death.
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Endocrine Aspects of ICU-Hospitalized COVID-19 Patients. J Pers Med 2022; 12:jpm12101703. [PMID: 36294842 PMCID: PMC9604718 DOI: 10.3390/jpm12101703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/03/2022] [Accepted: 10/08/2022] [Indexed: 11/07/2022] Open
Abstract
The unprecedented scale of the current SARS-CoV-2/COVID-19 pandemic has led to an extensive—yet fragmented—assessment of its endocrine repercussions; in many reports, the endocrine aspects of COVID-19 are lumped together in intensive care unit (ICU) patients and non-ICU patients. In this brief review, we aimed to present endocrine alterations in ICU-hospitalized patients with COVID-19. There are tangible endocrine disturbances that may provide fertile ground for COVID-19, such as preexisting diabetes. Other endocrine disturbances accompany the disease and more particularly its severe forms. Up to the time of writing, no isolated robust endocrine/hormonal biomarkers for the prognosis of COVID-19 have been presented. Among those which may be easily available are admission glycemia, thyroid hormones, and maybe (OH)25-vitamin D3. Their overlap among patients with severe and less severe forms of COVID-19 may be considerable, so their levels may be indicative only. We have shown that insulin-like growth factor 1 may have prognostic value, but this is not a routine measurement. Possibly, as our current knowledge is expanding, the inclusion of selected routine endocrine/hormonal measurements into artificial intelligence/machine learning models may provide further information.
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De Vitis C, Capalbo C, Torsello A, Napoli C, Salvati V, Loffredo C, Blandino G, Piaggio G, Auciello FR, Pelliccia F, Salerno G, Simmaco M, Di Magno L, Canettieri G, Coluzzi F, Mancini R, Rocco M, Sciacchitano S. Opposite Effect of Thyroid Hormones on Oxidative Stress and on Mitochondrial Respiration in COVID-19 Patients. Antioxidants (Basel) 2022; 11:antiox11101998. [PMID: 36290721 PMCID: PMC9598114 DOI: 10.3390/antiox11101998] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 10/03/2022] [Accepted: 10/04/2022] [Indexed: 01/08/2023] Open
Abstract
Background: Thyroid hormones (TH)s are master regulators of mitochondrial activity and biogenesis. Nonthyroidal illness syndrome (NTIS) is generally considered an adaptative response to reduced energy that is secondary to critical illness, including COVID-19. COVID-19 has been associated with profound changes in the cell energy metabolism, especially in the cells of the immune system, with a central role played by the mitochondria, considered the power units of every cell. Infection by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) affects and alters mitochondrial functions, both to influence its intracellular survival and to evade host immunity. Aim of the study: This study was undertaken to analyze the oxidative balance and mitochondrial respiration in COVID-19 patients with and without NTIS to elucidate the role that thyroid hormones (TH)s play in this context. Methods: In our cohort of 54 COVID-19 patients, admitted to our University Hospital during the COVID-19 pandemic, we evaluated the generation of reactive oxygen species (ROS) by measuring the serum levels of derivatives of reactive oxygen metabolites (dROMs), and we analyzed the antioxidant capacity by measuring the serum biological antioxidant potential (BAP). We then analyzed the mitochondrial respiration in peripheral blood mononuclear cells (PBMC)s of 28 of our COVID-19 patients, using the seahorse instrument (Agilent). Results were correlated with the serum levels of THs and, in particular, of FT3. In addition, the role of T3 on bioelectrical impedance analysis (BIA) and mitochondrial respiration parameters was directly evaluated in two COVID-19 patients with NTIS, in which treatment with synthetic liothyronine (LT3) was given both in vivo and in vitro. Results: In our COVID-19 patients with NTIS, the dROMs values were significantly lower and the BAP values were significantly higher. Consequently, the oxidative stress index (OSi), measured as BAP/dROMs ratio was reduced compared to that observed in COVID-19 patients without NTIS, indicating a protective role exerted by NTIS on oxidative stress. In our COVID-19 patients, the mitochondrial respiration, measured in PBMCs, was reduced compared to healthy controls. Those with NTIS showed a reduced maximal respiratory capacity and a reduced proton leak, compared to those with normal FT3 serum values. Such lowered mitochondrial respiratory capacity makes the cells more vulnerable to bioenergetic exhaustion. In a pilot study involving two COVID-19 patients with NTIS, we could reinforce our previous observation regarding the role of T3 in the maintenance of adequate peripheral hydroelectrolytic balance. In addition, in these two patients, we demonstrated that by treating their PBMCs with LT3, both in vitro and in vivo, all mitochondrial respiration parameters significantly increased. Conclusions: Our results regarding the reduction in the serum levels of the reactive oxygen species (ROS) of COVID-19 patients with NTIS support the hypothesis that NTIS could represent an adaptative response to severe COVID-19. However, beside this beneficial effect, we demonstrate that, in the presence of an acute reduction of FT3 serum levels, the mitochondrial respiration is greatly impaired, with a consequent establishment of a hypoenergetic state of the immune cells that may hamper their capacity to react to massive viral infection.
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Affiliation(s)
- Claudia De Vitis
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, 00189 Rome, Italy
| | - Carlo Capalbo
- Department of Medical Oncology, Sant’Andrea University Hospital, 00189 Rome, Italy
- Department of Molecular Medicine, Sapienza University of Rome, 00189 Rome, Italy
| | - Alessandra Torsello
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, 00189 Rome, Italy
| | - Christian Napoli
- Department of Surgical and Medical Science and Translational Medicine, Sapienza University of Rome, 00181 Rome, Italy
| | - Valentina Salvati
- Scientific Direction, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Chiara Loffredo
- Unit of Anesthesia, Intensive Care and Pain Medicine, Sant’Andrea University Hospital, 00189 Rome, Italy
| | - Giovanni Blandino
- Translational Oncology Research Unit, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Giulia Piaggio
- UOSD SAFU, Department of Research, Diagnosis and Innovative Technologies, IRCCS Regina Elena National Cancer Institute, 00144 Roma, Italy
| | - Francesca Romana Auciello
- Translational Oncology Research Unit, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Flaminia Pelliccia
- Unit of Anesthesia, Intensive Care and Pain Medicine, Sant’Andrea University Hospital, 00189 Rome, Italy
| | - Gerardo Salerno
- Department of Neuroscience, Mental Health, and Sensory Organs (NESMOS), Sapienza University of Rome, 00189 Rome, Italy
| | - Maurizio Simmaco
- Department of Neuroscience, Mental Health, and Sensory Organs (NESMOS), Sapienza University of Rome, 00189 Rome, Italy
| | - Laura Di Magno
- Department of Molecular Medicine, Sapienza University of Rome, 00189 Rome, Italy
| | - Gianluca Canettieri
- Department of Molecular Medicine, Sapienza University of Rome, 00189 Rome, Italy
- Pasteur Institute, Cenci-Bolognetti Foundation, 00161 Rome, Italy
| | - Flaminia Coluzzi
- Unit of Anesthesia, Intensive Care and Pain Medicine, Sant’Andrea University Hospital, 00189 Rome, Italy
- Department Medical and Surgical Sciences and Biotechnologies, Sapienza University of Rome, Polo Pontino, 04100 Latina, Italy
| | - Rita Mancini
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, 00189 Rome, Italy
| | - Monica Rocco
- Department of Surgical and Medical Science and Translational Medicine, Sapienza University of Rome, 00181 Rome, Italy
- Unit of Anesthesia, Intensive Care and Pain Medicine, Sant’Andrea University Hospital, 00189 Rome, Italy
| | - Salvatore Sciacchitano
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, 00189 Rome, Italy
- Correspondence:
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