1
|
Hoel H, Heggelund L, Reikvam DH, Stiksrud B, Ueland T, Michelsen AE, Otterdal K, Muller KE, Lind A, Muller F, Dudman S, Aukrust P, Dyrhol-Riise AM, Holter JC, Trøseid M. Elevated markers of gut leakage and inflammasome activation in COVID-19 patients with cardiac involvement. J Intern Med 2021; 289:523-531. [PMID: 32976665 PMCID: PMC7536991 DOI: 10.1111/joim.13178] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 09/10/2020] [Accepted: 09/14/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND A high proportion of COVID-19 patients have cardiac involvement, even those without known cardiac disease. Downregulation of angiotensin converting enzyme 2 (ACE2), a receptor for SARS-CoV-2 and the renin-angiotensin system, as well as inflammatory mechanisms have been suggested to play a role. ACE2 is abundant in the gut and associated with gut microbiota composition. We hypothesized that gut leakage of microbial products, and subsequent inflammasome activation could contribute to cardiac involvement in COVID-19 patients. METHODS Plasma levels of a gut leakage marker (LPS-binding protein, LBP), a marker of enterocyte damage (intestinal fatty acid binding protein, IFABP), a gut homing marker (CCL25, ligand for chemokine receptor CCR9) and markers of inflammasome activation (IL-1β, IL-18 and their regulatory proteins) were measured at three time points (day 1, 3-5 and 7-10) in 39 hospitalized COVID-19 patients and related to cardiac involvement. RESULTS Compared to controls, COVID-19 patients had elevated plasma levels of LBP and CCL25 but not IFABP, suggesting impaired gut barrier function and accentuated gut homing of T cells without excessive enterocyte damage. Levels of LBP were twice as high at baseline in patients with elevated cardiac markers compared with those without and remained elevated during hospitalization. Also, markers of inflammasome activation were moderately elevated in patients with cardiac involvement. LBP was associated with higher NT-pro-BNP levels, whereas IL-18, IL-18BP and IL-1Ra were associated with higher troponin levels. CONCLUSION Patients with cardiac involvement had elevated markers of gut leakage and inflammasome activation, suggestive of a potential gut-heart axis in COVID-19.
Collapse
Affiliation(s)
- H Hoel
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway.,Lovisenberg Diaconal Hospital, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - L Heggelund
- Department of Clinical Science, Faculty of Medicine, University of Bergen, Bergen, Norway.,Department of Internal Medicine, Drammen Hospital, Vestre Viken Hospital Trust, Drammen, Norway
| | - D H Reikvam
- Department of Infectious Diseases, Oslo University Hospital, Oslo, Norway
| | - B Stiksrud
- Department of Infectious Diseases, Oslo University Hospital, Oslo, Norway
| | - T Ueland
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,Faculty of Health Sciences, K.G. Jebsen TREC, University of Tromsø, Tromsø, Norway
| | - A E Michelsen
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - K Otterdal
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway
| | - K E Muller
- Department of Internal Medicine, Drammen Hospital, Vestre Viken Hospital Trust, Drammen, Norway
| | - A Lind
- Department of Microbiology, Oslo University Hospital, Oslo, Norway
| | - F Muller
- Department of Microbiology, Oslo University Hospital, Oslo, Norway
| | - S Dudman
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,Department of Microbiology, Oslo University Hospital, Oslo, Norway
| | - P Aukrust
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,Section of Clinical Immunology and Infectious Diseases, Oslo University Hospital, Oslo, Norway
| | - A M Dyrhol-Riise
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,Department of Infectious Diseases, Oslo University Hospital, Oslo, Norway
| | - J C Holter
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,Department of Microbiology, Oslo University Hospital, Oslo, Norway
| | - M Trøseid
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,Section of Clinical Immunology and Infectious Diseases, Oslo University Hospital, Oslo, Norway
| |
Collapse
|
2
|
Hoel H, Giga SI, Davidson MJ. Expectations and realities of student nurses' experiences of negative behaviour and bullying in clinical placement and the influences of socialization processes. Health Serv Manage Res 2016; 20:270-8. [DOI: 10.1258/095148407782219049] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This paper explores nursing students' experiences and perceptions of negative behaviour and bullying in clinical placement measured against expectations at the start of their education. It explores their understanding and how they make sense of their circumstances and their experiences of negative behaviour, emphasizing socialization processes and factors which may prevent or reproduce negative behaviour and bullying. To this end, a focus group study was conducted, and this revealed that many students felt exploited, ignored or were made to feel unwelcome, although few reported personal experience of bullying. These frequent but less severe negative experiences appear to play a key role in institutionalizing an unwelcoming culture within which bullying could easily be triggered or take hold. Students' coping mechanisms may also contribute to reproducing such negative behaviour. The paper concludes that while the vulnerable position of student nurses might offer some protection against outright bullying, it is unable to shield them from unfriendly and negative behaviour, with implications for their learning and professional socialization. If student nurses respond to their experiences by suppressing their feelings and developing a hard front, such responses may themselves contribute to a reproduction of such behaviour with implications for personal wellbeing and retention rates.
Collapse
Affiliation(s)
- H Hoel
- Manchester Business School, The University of Manchester, Manchester, UK
| | - S I Giga
- Centre for Inclusion and Diversity, The University of Bradford, Bradford, UK
| | - M J Davidson
- Centre for Equality and Diversity at Work, Manchester Business School, The University of Manchester, Manchester, UK
| |
Collapse
|