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Hoshino M, Akitsu K, Ohtawa J, Kubota K. Long-term efficacy of house dust mite sublingual immunotherapy on clinical and pulmonary function in patients with asthma and allergic rhinitis. J Allergy Clin Immunol Glob 2024; 3:100206. [PMID: 38328802 PMCID: PMC10847160 DOI: 10.1016/j.jacig.2024.100206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 11/04/2023] [Accepted: 11/10/2023] [Indexed: 02/09/2024]
Abstract
Background A previous study reported that house dust mite (HDM) sublingual immunotherapy (SLIT) for 48 weeks was effective as add-on treatment for allergic asthma; however, data regarding its long-term efficacy are scarce. Objective We sought to evaluate the effect of HDM SLIT on asthma control, pulmonary function, and airway inflammation and remodeling throughout the 5-year treatment period. Methods A total of 140 patients with asthma and allergic rhinitis sensitized to HDM were randomized to receive either drugs alone or drugs plus SLIT for 5 years. The 5-item Asthma Control Questionnaire (ACQ-5), Asthma Quality of Life Questionnaire (AQLQ), Rhinoconjunctivitis Quality of Life Questionnaire (RQLQ), spirometry, quantitative computed tomography, and type 2 biomarkers were assessed. Results An improvement in the ACQ-5, AQLQ, and RQLQ scores was observed in the SLIT group compared with the control group. HDM SLIT increased lung function and reduced the percentage of airway wall area. The levels of fractional exhaled nitric oxide (Feno), blood eosinophil, serum specific IgE for HDM, and total IgE decreased and were sustained during the 5 years. The change in type 2 biomarkers correlated with change in the AQLQ score. On the basis of receiver-operating characteristic analysis for predicting responders, the area under the receiver-operating characteristic curve in FEV1% predicted, airway wall area, Feno, and specific IgE was high. Multivariate regression analysis showed that the strongest predictor of responders was Feno. Conclusions HDM SLIT continued to provide sustained efficacy, improve lung function, and prevent progression of airway inflammation and remodeling in asthma throughout the 5-year treatment period.
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Affiliation(s)
- Makoto Hoshino
- Division of Clinical Allergy, Department of Internal Medicine, Atami Hospital, International University of Health and Welfare, Atami, Japan
| | - Kenta Akitsu
- Department of Radiology, Atami Hospital, International University of Health and Welfare, Atami, Japan
| | - Junichi Ohtawa
- Department of Radiology, Atami Hospital, International University of Health and Welfare, Atami, Japan
| | - Kengo Kubota
- Department of Radiology, Atami Hospital, International University of Health and Welfare, Atami, Japan
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2
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Russell JJ, Mummidi S, DeMarco VG, Grisanti LA, Bailey CA, Bender SB, Chandrasekar B. Integrated miRNA-mRNA networks underlie attenuation of chronic β-adrenergic stimulation-induced cardiac remodeling by minocycline. Physiol Genomics 2024; 56:360-366. [PMID: 38314697 DOI: 10.1152/physiolgenomics.00140.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/18/2024] [Accepted: 02/01/2024] [Indexed: 02/07/2024] Open
Abstract
Adverse cardiac remodeling contributes to heart failure development and progression, partly due to inappropriate sympathetic nervous system activation. Although β-adrenergic receptor (β-AR) blockade is a common heart failure therapy, not all patients respond, prompting exploration of alternative treatments. Minocycline, an FDA-approved antibiotic, has pleiotropic properties beyond antimicrobial action. Recent evidence suggests it may alter gene expression via changes in miRNA expression. Thus, we hypothesized that minocycline could prevent adverse cardiac remodeling induced by the β-AR agonist isoproterenol, involving miRNA-mRNA transcriptome alterations. Male C57BL/6J mice received isoproterenol (30 mg/kg/day sc) or vehicle via osmotic minipump for 21 days, along with daily minocycline (50 mg/kg ip) or sterile saline. Isoproterenol induced cardiac hypertrophy without altering cardiac function, which minocycline prevented. Total mRNA sequencing revealed isoproterenol altering gene networks associated with inflammation and metabolism, with fibrosis activation predicted by integrated miRNA-mRNA sequencing, involving miR-21, miR-30a, miR-34a, miR-92a, and miR-150, among others. Conversely, the cardiac miRNA-mRNA transcriptome predicted fibrosis inhibition in minocycline-treated mice, involving antifibrotic shifts in Atf3 and Itgb6 gene expression associated with miR-194 upregulation. Picrosirius red staining confirmed isoproterenol-induced cardiac fibrosis, prevented by minocycline. These results demonstrate minocycline's therapeutic potential in attenuating adverse cardiac remodeling through miRNA-mRNA-dependent mechanisms, especially in reducing cardiac fibrosis. NEW & NOTEWORTHY We demonstrate that minocycline treatment prevents cardiac hypertrophy and fibrotic remodeling induced by chronic β-adrenergic stimulation by inducing antifibrotic shifts in the cardiac miRNA-mRNA transcriptome.
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Affiliation(s)
- Jacob J Russell
- Biomedical Sciences, University of Missouri, Columbia, Missouri, United States
- Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri, United States
| | - Srinivas Mummidi
- Health and Behavior Sciences, Texas A&M University-San Antonio, San Antonio, Texas, United States
| | - Vincent G DeMarco
- Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri, United States
- Medicine, University of Missouri School of Medicine, Columbia, Missouri, United States
| | - Laurel A Grisanti
- Biomedical Sciences, University of Missouri, Columbia, Missouri, United States
| | - Chastidy A Bailey
- Biomedical Sciences, University of Missouri, Columbia, Missouri, United States
- Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri, United States
| | - Shawn B Bender
- Biomedical Sciences, University of Missouri, Columbia, Missouri, United States
- Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri, United States
- Dalton Cardiovascular Center, University of Missouri, Columbia, Missouri, United States
| | - Bysani Chandrasekar
- Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri, United States
- Medicine, University of Missouri School of Medicine, Columbia, Missouri, United States
- Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, Missouri, United States
- Dalton Cardiovascular Center, University of Missouri, Columbia, Missouri, United States
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3
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Asatryan B, Muller SA. A Novel CMR-ECGI Lens Exposes the Electrophysiological Substrate in Subclinical HCM: A Glimmering Future Preview. J Am Coll Cardiol 2024; 83:1056-1058. [PMID: 38385930 DOI: 10.1016/j.jacc.2024.01.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 01/22/2024] [Indexed: 02/23/2024]
Affiliation(s)
- Babken Asatryan
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
| | - Steven A Muller
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; Department of Cardiology, University Medical Center Utrecht, Utrecht, the Netherlands; Netherlands Heart Institute, Utrecht, the Netherlands
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4
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Badano LP, Muraru D. Make Right Heart Remodeling in Secondary Tricuspid Regurgitation as Simple as Possible, But Not Simpler. JACC Cardiovasc Imaging 2024:S1936-878X(24)00058-5. [PMID: 38520426 DOI: 10.1016/j.jcmg.2024.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 02/01/2024] [Indexed: 03/25/2024]
Affiliation(s)
- Luigi P Badano
- Department of Medicine and Surgery, University of Milano Bicocca, Milan, Italy; Department of Cardiology, IRCCS Istituto Auxologico Italiano, Milan, Italy.
| | - Denisa Muraru
- Department of Medicine and Surgery, University of Milano Bicocca, Milan, Italy; Department of Cardiology, IRCCS Istituto Auxologico Italiano, Milan, Italy
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Domingo C, Monserrate DR, Sogo A, Mirapeix RM. The Incredible Adventure of Omalizumab. Int J Mol Sci 2024; 25:3056. [PMID: 38474304 DOI: 10.3390/ijms25053056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/18/2024] [Accepted: 02/29/2024] [Indexed: 03/14/2024] Open
Abstract
The basis of our current understanding of allergies begins with the discovery of IgE in the mid-1960s. The whole theory of the physiology and pathophysiology of allergic diseases, including rhinitis and asthma, dates from that period. Among the key regions of IgE identified were the FAB (fragment antigen binding) portion that has the ability to capture allergens, and the Cε3 domain, through which IgE binds to its membrane receptor. It was then postulated that blocking IgE at the level of the Cε3 domain would prevent it from binding to its receptor and thus set in motion the allergic cascade. This was the beginning of the development of omalizumab, a monoclonal antibody with an anti-IgE effect. In this article, we review the pathophysiology of allergic disease and trace the clinical development of omalizumab. We also review the benefits of omalizumab treatment that are apparently unrelated to allergies, such as its effect on immunity and bronchial remodeling.
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Affiliation(s)
- Christian Domingo
- Department of Pulmonary Medicine, Parc Taulí Hospital Universitari, Institut d'Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autònoma de Barcelona, 08202 Sabadell, Spain
| | - Daniel R Monserrate
- Department of Pulmonary Medicine, Parc Taulí Hospital Universitari, Institut d'Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autònoma de Barcelona, 08202 Sabadell, Spain
| | - Ana Sogo
- Department of Pulmonary Medicine, Parc Taulí Hospital Universitari, Institut d'Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autònoma de Barcelona, 08202 Sabadell, Spain
| | - Rosa M Mirapeix
- Unitat d'Anatomia, Departament de Ciències Morfològiques, Universitat Autònoma de Barcelona (UAB), 08193 Cerdanyola, Spain
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Wang H, Yip KH, Keam SP, Vlahos R, Nichol K, Wark P, Toubia J, Kral AC, Cildir G, Pant H, Hercus TR, Wilson N, Owczarek C, Lopez AF, Bozinovski S, Tumes DJ. Dual inhibition of airway inflammation and fibrosis by common β cytokine receptor blockade. J Allergy Clin Immunol 2024; 153:672-683.e6. [PMID: 37931708 DOI: 10.1016/j.jaci.2023.10.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 09/11/2023] [Accepted: 10/12/2023] [Indexed: 11/08/2023]
Abstract
BACKGROUND Patients with severe asthma can present with eosinophilic type 2 (T2), neutrophilic, or mixed inflammation that drives airway remodeling and exacerbations and represents a major treatment challenge. The common β (βc) receptor signals for 3 cytokines, GM-CSF, IL-5, and IL-3, which collectively mediate T2 and neutrophilic inflammation. OBJECTIVE To determine the pathogenesis of βc receptor-mediated inflammation and remodeling in severe asthma and to investigate βc antagonism as a therapeutic strategy for mixed granulocytic airway disease. METHODS βc gene expression was analyzed in bronchial biopsy specimens from patients with mild-to-moderate and severe asthma. House dust mite extract and Aspergillus fumigatus extract (ASP) models were used to establish asthma-like pathology and airway remodeling in human βc transgenic mice. Lung tissue gene expression was analyzed by RNA sequencing. The mAb CSL311 targeting the shared cytokine binding site of βc was used to block βc signaling. RESULTS βc gene expression was increased in patients with severe asthma. CSL311 potently reduced lung neutrophils, eosinophils, and interstitial macrophages and improved airway pathology and lung function in the acute steroid-resistant house dust mite extract model. Chronic intranasal ASP exposure induced airway inflammation and fibrosis and impaired lung function that was inhibited by CSL311. CSL311 normalized the ASP-induced fibrosis-associated extracellular matrix gene expression network and strongly reduced signatures of cellular inflammation in the lung. CONCLUSIONS βc cytokines drive steroid-resistant mixed myeloid cell airway inflammation and fibrosis. The anti-βc antibody CSL311 effectively inhibits mixed T2/neutrophilic inflammation and severe asthma-like pathology and reverses fibrosis gene signatures induced by exposure to commonly encountered environmental allergens.
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Affiliation(s)
- Hao Wang
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Australia
| | - Kwok Ho Yip
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, Australia
| | - Simon P Keam
- Research and Development, CSL Limited, Bio21 Molecular Science and Biotechnology Institute, Parkville, Australia
| | - Ross Vlahos
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Australia
| | - Kristy Nichol
- Immune Health Research Program, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia; Department of Respiratory and Sleep Medicine, John Hunter Hospital, Newcastle, Australia
| | - Peter Wark
- Immune Health Research Program, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia; Department of Respiratory and Sleep Medicine, John Hunter Hospital, Newcastle, Australia
| | - John Toubia
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, Australia
| | - Anita C Kral
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, Australia
| | - Gökhan Cildir
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, Australia
| | - Harshita Pant
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, Australia; Faculty of Medicine, University of Adelaide, Adelaide, Australia
| | - Timothy R Hercus
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, Australia
| | - Nick Wilson
- Research and Development, CSL Limited, Bio21 Molecular Science and Biotechnology Institute, Parkville, Australia
| | - Catherine Owczarek
- Research and Development, CSL Limited, Bio21 Molecular Science and Biotechnology Institute, Parkville, Australia
| | - Angel F Lopez
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, Australia; Faculty of Medicine, University of Adelaide, Adelaide, Australia
| | - Steven Bozinovski
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Australia.
| | - Damon J Tumes
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, Australia.
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Urbanski PP, Atieh A, Lehmkuhl L, Irimie V, Zhan X, Thamm T, Ahmidou A, Nasra W, Diegeler A. Selective sinus replacement for aortic root repair in bicuspid aortopathy. J Thorac Cardiovasc Surg 2024; 167:908-917.e6. [PMID: 35461710 DOI: 10.1016/j.jtcvs.2022.03.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 03/09/2022] [Accepted: 03/16/2022] [Indexed: 11/22/2022]
Abstract
OBJECTIVES To evaluate the results after selective sinus replacement (SSR) for aortic root remodeling in bicuspid aortopathy. METHODS Among 662 patients who underwent root repair using SSR between 2005 and 2020, there were 114 with bicuspid aortopathy. SSR was performed either as an isolated procedure (31) or as an adjunct to aortic valve repair (83) and was adjusted to the existing aortic annulus diameter rather than a downsized diameter. In valves with asymmetrical commissural orientation, the repair aimed for the achievement of a 180°-commissural orientation. RESULTS Abolishment of aortic insufficiency (AI) ≥2+ using root repair alone was only possible in 2 patients with acute-dissection-related AI, yet isolated root repair was also performed in 29 further patients with no/mild AI. All remaining patients with AI ≥2+ presented cusp-related regurgitation and necessitated an additional valve repair. During the mean follow-up of 91 months (range, 13-196), a relevant valve defect (AI ≥3+ in 8, stenosis in 2) occurred in 10 patients (all after combined repair) resulting in an estimated freedom from a relevant aortic valve defect and/or reoperation of 96 ± 2%, 89 ± 4%, and 82 ± 6% at 5, 10, and 12 years, respectively. Echocardiographically, no patient revealed a considerable change of form or size of the repaired root nor was any root reintervention necessary. CONCLUSIONS Patient-tailored root repair using SSR is a very effective and durable valve-sparing approach for bicuspid aortopathy. Aortic cusp repair is decisive for both abolishment of AI in bicuspid aortopathy and for the functional durability of the repaired aortic valve.
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Affiliation(s)
- Paul P Urbanski
- Department of Cardiovascular Surgery, Cardiovascular Clinic Bad Neustadt, Bad Neustadt, Germany.
| | - Alaa Atieh
- Department of Cardiovascular Surgery, Cardiovascular Clinic Bad Neustadt, Bad Neustadt, Germany
| | - Lukas Lehmkuhl
- Department of Radiology, Cardiovascular Clinic Bad Neustadt, Bad Neustadt, Germany
| | - Vadim Irimie
- Department of Cardiovascular Surgery, Cardiovascular Clinic Bad Neustadt, Bad Neustadt, Germany
| | - Xiaochun Zhan
- Department of Cardiovascular Surgery, Cardiovascular Clinic Bad Neustadt, Bad Neustadt, Germany
| | - Tarvo Thamm
- Department for Medical Statistics, Campus Bad Neustadt, Bad Neustadt, Germany
| | - Akram Ahmidou
- Department for Medical Statistics, Campus Bad Neustadt, Bad Neustadt, Germany
| | - Wasim Nasra
- Department of Cardiovascular Surgery, Cardiovascular Clinic Bad Neustadt, Bad Neustadt, Germany
| | - Anno Diegeler
- Department of Cardiovascular Surgery, Cardiovascular Clinic Bad Neustadt, Bad Neustadt, Germany
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Anders S, Breithausen B, Unichenko P, Herde MK, Minge D, Abramian A, Behringer C, Deshpande T, Boehlen A, Domingos C, Henning L, Pitsch J, Kim YB, Bedner P, Steinhäuser C, Henneberger C. Epileptic activity triggers rapid ROCK1-dependent astrocyte morphology changes. Glia 2024; 72:643-659. [PMID: 38031824 PMCID: PMC10842783 DOI: 10.1002/glia.24495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 11/16/2023] [Accepted: 11/20/2023] [Indexed: 12/01/2023]
Abstract
Long-term modifications of astrocyte function and morphology are well known to occur in epilepsy. They are implicated in the development and manifestation of the disease, but the relevant mechanisms and their pathophysiological role are not firmly established. For instance, it is unclear how quickly the onset of epileptic activity triggers astrocyte morphology changes and what the relevant molecular signals are. We therefore used two-photon excitation fluorescence microscopy to monitor astrocyte morphology in parallel to the induction of epileptiform activity. We uncovered astrocyte morphology changes within 10-20 min under various experimental conditions in acute hippocampal slices. In vivo, induction of status epilepticus resulted in similarly altered astrocyte morphology within 30 min. Further analysis in vitro revealed a persistent volume reduction of peripheral astrocyte processes triggered by induction of epileptiform activity. In addition, an impaired diffusion within astrocytes and within the astrocyte network was observed, which most likely is a direct consequence of the astrocyte remodeling. These astrocyte morphology changes were prevented by inhibition of the Rho GTPase RhoA and of the Rho-associated kinase (ROCK). Selective deletion of ROCK1 but not ROCK2 from astrocytes also prevented the morphology change after induction of epileptiform activity and reduced epileptiform activity. Together these observations reveal that epileptic activity triggers a rapid ROCK1-dependent astrocyte morphology change, which is mechanistically linked to the strength of epileptiform activity. This suggests that astrocytic ROCK1 signaling is a maladaptive response of astrocytes to the onset of epileptic activity.
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Affiliation(s)
- Stefanie Anders
- Institute of Cellular Neurosciences, Medical Faculty, University of Bonn, Bonn, Germany
| | - Björn Breithausen
- Institute of Cellular Neurosciences, Medical Faculty, University of Bonn, Bonn, Germany
| | - Petr Unichenko
- Institute of Cellular Neurosciences, Medical Faculty, University of Bonn, Bonn, Germany
| | - Michel K. Herde
- Institute of Cellular Neurosciences, Medical Faculty, University of Bonn, Bonn, Germany
| | - Daniel Minge
- Institute of Cellular Neurosciences, Medical Faculty, University of Bonn, Bonn, Germany
| | - Adlin Abramian
- Institute of Cellular Neurosciences, Medical Faculty, University of Bonn, Bonn, Germany
| | - Charlotte Behringer
- Institute of Cellular Neurosciences, Medical Faculty, University of Bonn, Bonn, Germany
| | - Tushar Deshpande
- Institute of Cellular Neurosciences, Medical Faculty, University of Bonn, Bonn, Germany
| | - Anne Boehlen
- Institute of Cellular Neurosciences, Medical Faculty, University of Bonn, Bonn, Germany
| | - Cátia Domingos
- Institute of Cellular Neurosciences, Medical Faculty, University of Bonn, Bonn, Germany
| | - Lukas Henning
- Institute of Cellular Neurosciences, Medical Faculty, University of Bonn, Bonn, Germany
| | - Julika Pitsch
- Department of Epileptology, University Hospital Bonn, Bonn, Germany
| | - Young-Bum Kim
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Beth Israel Deaconess Medical Center, and Harvard Medical School, Boston, MA, USA
| | - Peter Bedner
- Institute of Cellular Neurosciences, Medical Faculty, University of Bonn, Bonn, Germany
| | - Christian Steinhäuser
- Institute of Cellular Neurosciences, Medical Faculty, University of Bonn, Bonn, Germany
| | - Christian Henneberger
- Institute of Cellular Neurosciences, Medical Faculty, University of Bonn, Bonn, Germany
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
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Tona F, Civieri G, Vadori M, Masiero G, Iop L, Marra MP, Perin V, Cuciz E, Cecere A, Bernava G, Tansella D, Naumova N, Grewal S, Cozzi E, Iliceto S. Association of Angiotensin II Receptor Type 1 and Endothelin-1 Receptor Type A Agonistic Autoantibodies With Adverse Remodeling and Cardiovascular Events After Acute Myocardial Infarction. J Am Heart Assoc 2024; 13:e032672. [PMID: 38348777 DOI: 10.1161/jaha.123.032672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 12/27/2023] [Indexed: 02/21/2024]
Abstract
BACKGROUND The left ventricular remodeling (LVR) process has limited the effectiveness of therapies after myocardial infarction. The relationship between autoantibodies activating AT1R-AAs (angiotensin II receptor type 1-AAs) and ETAR-AAs (autoantibodies activating endothelin-1 receptor type A) with myocardial infarction has been described. Among patients with ST-segment-elevation myocardial infarction, we investigated the relationship between these autoantibodies with LVR and subsequent major adverse cardiac events. METHODS AND RESULTS In this prospective observational study, we included 131 patients with ST-segment-elevation myocardial infarction (61±11 years of age, 112 men) treated with primary percutaneous coronary intervention. Within 48 hours of admission, 2-dimensional transthoracic echocardiography was performed, and blood samples were obtained. The seropositive threshold for AT1R-AAs and ETAR-AAs was >10 U/mL. Patients were followed up at 6 months, when repeat transthoracic echocardiography was performed. The primary end points were LVR, defined as a 20% increase in left ventricular end-diastolic volume index, and major adverse cardiac event occurrence at follow-up, defined as cardiac death, nonfatal re-myocardial infarction, and hospitalization for heart failure. Forty-one (31%) patients experienced LVR. The prevalence of AT1R-AAs and ETAR-AAs seropositivity was higher in patients with versus without LVR (39% versus 11%, P<0.001 and 37% versus 12%, P=0.001, respectively). In multivariable analysis, AT1R-AAs seropositivity was significantly associated with LVR (odds ratio [OR], 4.66; P=0.002) and represented a risk factor for subsequent major adverse cardiac events (OR, 19.6; P=0.002). CONCLUSIONS AT1R-AAs and ETAR-AAs are associated with LVR in patients with ST-segment-elevation myocardial infarction. AT1R-AAs are also significantly associated with recurrent major adverse cardiac events. These initial observations may set the stage for a better pathophysiological understanding of the mechanisms contributing to LVR and ST-segment-elevation myocardial infarction prognosis.
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Affiliation(s)
- Francesco Tona
- Department of Cardiac, Thoracic, Vascular Sciences, and Public Health University of Padua Padua Italy
| | - Giovanni Civieri
- Department of Cardiac, Thoracic, Vascular Sciences, and Public Health University of Padua Padua Italy
| | - Marta Vadori
- Department of Cardiac, Thoracic, Vascular Sciences, and Public Health University of Padua Padua Italy
| | - Giulia Masiero
- Department of Cardiac, Thoracic, Vascular Sciences, and Public Health University of Padua Padua Italy
| | - Laura Iop
- Department of Cardiac, Thoracic, Vascular Sciences, and Public Health University of Padua Padua Italy
| | - Martina Perazzolo Marra
- Department of Cardiac, Thoracic, Vascular Sciences, and Public Health University of Padua Padua Italy
| | - Valentina Perin
- Department of Cardiac, Thoracic, Vascular Sciences, and Public Health University of Padua Padua Italy
| | - Elisa Cuciz
- Department of Cardiac, Thoracic, Vascular Sciences, and Public Health University of Padua Padua Italy
| | - Annagrazia Cecere
- Department of Cardiac, Thoracic, Vascular Sciences, and Public Health University of Padua Padua Italy
| | - Giacomo Bernava
- Department of Cardiac, Thoracic, Vascular Sciences, and Public Health University of Padua Padua Italy
| | - Donatella Tansella
- Department of Cardiac, Thoracic, Vascular Sciences, and Public Health University of Padua Padua Italy
| | - Nataliia Naumova
- Department of Cardiac, Thoracic, Vascular Sciences, and Public Health University of Padua Padua Italy
| | | | - Emanuele Cozzi
- Department of Cardiac, Thoracic, Vascular Sciences, and Public Health University of Padua Padua Italy
| | - Sabino Iliceto
- Department of Cardiac, Thoracic, Vascular Sciences, and Public Health University of Padua Padua Italy
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10
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Zeder K, Marsh LM, Avian A, Brcic L, Birnhuber A, Douschan P, Foris V, Sassmann T, Hoetzenecker K, Böhm P, Kwapiszewska G, Olschewski A, Olschewski H, Kovacs G. Compartment-specific remodeling patterns in end-stage chronic obstructive pulmonary disease with and without severe pulmonary hypertension. J Heart Lung Transplant 2024:S1053-2498(24)01087-8. [PMID: 38382583 DOI: 10.1016/j.healun.2024.02.1044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 02/08/2024] [Accepted: 02/16/2024] [Indexed: 02/23/2024] Open
Abstract
RATIONALE In end-stage COPD patients, severe pulmonary hypertension (PH) is frequently associated with less severe airway obstruction as compared to mild or no PH. However, the histologic correlate of this finding is not clear. OBJECTIVE To quantify remodeling of pulmonary arteries, airways and parenchyma in random samples of explanted end-stage COPD lungs. METHODS We quantified thickening of small pulmonary arteries, remodeling of small airways and the degree of emphysema (mean interseptal distance, MID) with dedicated software. As primary objective, we compared COPD patients with severe PH (SevPH-COPD) with age- and sex matched MildPH-COPD. For comparison, we also investigated COPD lungs with no PH (NoPH-COPD), idiopathic PAH (IPAH), and healthy donors. RESULTS We included n=17 SevPH-COPD (mPAP=43 [39-45]mmHg), n=17 MildPH-COPD (mPAP=28 [24-31]mmHg), n=5 NoPH-COPD (mPAP=18 [16-19]mmHg), n=10 IPAH (mPAP=72 [65-91]mmHg) and n=10 healthy donor lungs. SevPH-COPD vs. MildPH-COPD was characterized by better preserved forced vital capacity (51%vs.40%predicted,p<0.05), less emphysema (MID 169µmvs.279µm,p<0.001), and less PAS-positive and CD45-positive mucosa cells (15%vs.22%,p=0.063 and 5%vs.7%,p=0.058) suggesting less airway inflammation. Over the full range of COPD, intimal and medial thickening were strongly correlated with mPAP (r=0.676,p<0.001 and r=0.595,p<0.001). MID was negatively correlated with mPAP (r=-0.556,p<0.001) and was highest in NoPH-COPD (mean 281µm), suggesting that emphysema per se is not associated with PH. CONCLUSION End-stage COPD with severe PH is characterized by pronounced pulmonary vascular remodeling, less inflammation of small airways and less emphysema as compared to COPD with mild PH or no PH, suggesting that COPD with severe PH may represent a unique phenotype of COPD.
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Affiliation(s)
- Katarina Zeder
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria; Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | | | - Alexander Avian
- Institute for Medical Informatics, Statistics and Documentation, Medical University of Graz, Graz, Austria
| | - Luka Brcic
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria; Diagnostic and Research Institute of Pathology, Medical University of Graz
| | - Anna Birnhuber
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria; Division of Physiology, Otto Loewi Research Center, Medical University of Graz, Graz, Austria
| | - Philipp Douschan
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria; Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Vasile Foris
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria; Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Teresa Sassmann
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria; Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Konrad Hoetzenecker
- Division of Thoracic Surgery, Department of Surgery, Medical University of Vienna, Vienna, Austria, Vienna, Austria
| | - Panja Böhm
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria; Division of Thoracic Surgery, Department of Surgery, Medical University of Vienna, Vienna, Austria, Vienna, Austria
| | - Grazyna Kwapiszewska
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria; Division of Physiology, Otto Loewi Research Center, Medical University of Graz, Graz, Austria; Institute for Lung Health, Giessen, Germany
| | - Andrea Olschewski
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria; Experimental Anaesthesiology, Department of Anaesthesiology and Intensive Care Medicine, Medical University of Graz, Austria
| | - Horst Olschewski
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria; Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria.
| | - Gabor Kovacs
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria; Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
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11
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De Larochellière H, Brouillette F, Lévesque P, Dognin N, St-Germain R, Rimac G, Lemay S, Philippon F, Sénéchal M. Severity of Left Ventricular Dysfunction in Patients With Tachycardia-Induced Cardiomyopathy: Impacts on Remodeling After Atrial Flutter Ablation. Am J Cardiol 2024; 213:132-139. [PMID: 38114044 DOI: 10.1016/j.amjcard.2023.11.072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 11/12/2023] [Accepted: 11/24/2023] [Indexed: 12/21/2023]
Abstract
Tachycardia-induced cardiomyopathy is defined as a reversible left ventricular (LV) systolic dysfunction (SeD) resulting from a sustained fast heart rate. LV remodeling in patients with severe LV dysfunction at diagnosis remains poorly understood. In this retrospective cohort study, we described LV remodeling in 50 patients who underwent atrial flutter ablation. These patients were divided into severe LV SeD (LV ejection fraction [EF] ≤30%) and LV nonsevere SeD (LVEF 31% to 50%) at baseline. All continuous variables are expressed as median and interquartile range. LVEF was 18% (13 to 25) and 38% (34 to 41) in the SeD (n = 29) and LV nonsevere SeD (n = 21) groups, respectively. At baseline, patients with SeD had higher LV end-diastolic diameter (56 [54 to 59] vs 49 mm [47 to 52], p <0.01), LV end-systolic diameter (48 [43 to 51] vs 36 mm [34 to 41], p <0.01), LV end-diastolic volume (71 [64 to 85] vs 56 ml/m2 [46 to 68], p <0.01), LV end-systolic volume (56 [53 to 70] vs 36 ml/m2 [27 to 42], p <0.01), and lower tricuspid annular plane systolic excursion (12 [10 to 13] vs 16 mm [13 to 19], p <0.01). At last follow-up, LVEF was not statistically significantly different between groups. However, LV end-systolic diameter (36 [34 to 39] vs 32 mm [32 to 34], p = 0.01) and LV end-systolic volume (29 [26 to 35] vs 25 ml/m2 [20 to 29], p = 0.02) remained larger in the SeD group. Seven patients (14%), all from the SeD group, had a LVEF ≤35% 2 months after rhythm control, and reverse remodeling was observed up to 9 months. In conclusion, more than half of patients with tachycardia-induced cardiomyopathy and atrial flutter had LVEF ≤30% at baseline. LVEF recovery and LV remodeling were observed beyond 2 months, highlighting the importance of rhythm control and early guideline-directed medical therapy in these patients.
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Affiliation(s)
- Hugo De Larochellière
- Division of Cardiology, Institut Universitaire de Cardiologie et Pneumologie de Québec (IUCPQ), Université Laval, Québec City, Québec, Canada
| | - François Brouillette
- Division of Cardiology, Institut Universitaire de Cardiologie et Pneumologie de Québec (IUCPQ), Université Laval, Québec City, Québec, Canada
| | - Patrick Lévesque
- Division of Cardiology, Institut Universitaire de Cardiologie et Pneumologie de Québec (IUCPQ), Université Laval, Québec City, Québec, Canada
| | - Nicolas Dognin
- Division of Cardiology, Institut Universitaire de Cardiologie et Pneumologie de Québec (IUCPQ), Université Laval, Québec City, Québec, Canada
| | - Raphaël St-Germain
- Division of Cardiology, Institut Universitaire de Cardiologie et Pneumologie de Québec (IUCPQ), Université Laval, Québec City, Québec, Canada
| | - Goran Rimac
- Division of Cardiology, Institut Universitaire de Cardiologie et Pneumologie de Québec (IUCPQ), Université Laval, Québec City, Québec, Canada
| | - Sylvain Lemay
- Division of Cardiology, Institut Universitaire de Cardiologie et Pneumologie de Québec (IUCPQ), Université Laval, Québec City, Québec, Canada
| | - François Philippon
- Division of Cardiology, Institut Universitaire de Cardiologie et Pneumologie de Québec (IUCPQ), Université Laval, Québec City, Québec, Canada
| | - Mario Sénéchal
- Division of Cardiology, Institut Universitaire de Cardiologie et Pneumologie de Québec (IUCPQ), Université Laval, Québec City, Québec, Canada.
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12
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Burton S, Reynolds AC, King N, Modi A, Asopa S. Midterm Clinical Outcomes of Reimplantation Versus Remodeling Valve-Sparing Aortic Root Replacement in Patients With Connective Tissue Disorders: A Meta-Analysis. Am J Cardiol 2024; 213:28-35. [PMID: 38104753 DOI: 10.1016/j.amjcard.2023.11.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/13/2023] [Accepted: 11/29/2023] [Indexed: 12/19/2023]
Abstract
This meta-analysis aimed to compare the midterm clinical outcomes of reimplantation versus remodeling techniques for valve-sparing aortic root replacement (VSARR) in patients with connective tissue disorders (CTDs). Studies were screened and identified after the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines from the PubMed, Web of Science, and Embase databases. Forest plots were produced using Review Manager 5.3 (Cochrane, UK). Studies comparing early and midterm clinical outcomes of reimplantation versus remodeling VSARR in patients with CTD with a mean age ≥18 years were included. The sensitivity analysis excluded studies and subgroups of patients that received ring or suture annuloplasty in addition to remodeling surgery. The study selection identified 9 eligible studies. After analysis of the study period and location for patient crossover, 7 retrospective studies consisting of 597 patients (301 reimplantation and 296 remodeling) were pooled. The pooling revealed no significant difference in postoperative mortality (estimated mean follow-up of 10.5 years) (odds ratio [OR] 0.66, 95% confidence interval [CI] 0.30 to 1.48, I2 = 30%, p = 0.32), reoperation (OR 0.35, CI 0.04 to 3.30, I2 = 81%, p = 0.36), or occurrence of postoperative aortic regurgitation of ≥2 (OR 0.56, CI 0.31 to 1.02, I2 = 47%, p = 0.06). The sensitivity analysis excluding annuloplasty demonstrated improved mortality (OR 0.19, CI 0.06 to 0.64, I2 = 0%, p = 0.007) and decreased aortic regurgitation of ≥2 (OR 0.23, CI 0.10 to 0.53, I2 = 47%, p = 0.0005) in reimplantation VSARR. The rates of reoperation remained insignificant in the sensitivity analysis (OR 0.43, CI 0.05 to 3.53, I2 = 71%, p = 0.43). In conclusion, this meta-analysis has demonstrated no significant difference in the midterm clinical outcomes of reimplantation versus remodeling techniques of VSARR. The sensitivity analysis excluding studies and patient subgroups that received remodeling and annuloplasty suggests remodeling alone to be inferior to reimplantation in patients with CTDs. Further research is required to assess remodeling and annuloplasty against reimplantation in patients of this demographic because the current body of knowledge does not allow sufficient analysis.
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Affiliation(s)
- Samuel Burton
- Faculty of Health Sciences, University of Bristol, Bristol, United Kingdom.
| | | | - Nicola King
- Faculty of Health, University of Plymouth, Plymouth, United Kingdom
| | - Amit Modi
- Wessex Cardiac Centre, Southampton, United Kingdom
| | - Sanjay Asopa
- Southwest Cardiothoracic Centre, Plymouth, United Kingdom
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13
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Thormann K, Lüthi AS, Deniau F, Heider A, Cazzaniga S, Radonjic-Hoesli S, Lehmann M, Schlapbach C, Herzog EL, Kreuzer M, Zinkernagel MS, Akdis CA, Zysset-Burri DC, Simon HU, Simon D. Dupilumab-associated ocular surface disease is characterized by a shift from Th2/Th17 toward Th1/Th17 inflammation. Allergy 2024. [PMID: 38317432 DOI: 10.1111/all.16045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/18/2023] [Accepted: 01/01/2024] [Indexed: 02/07/2024]
Abstract
BACKGROUND Dupilumab is used for the treatment of atopic dermatitis (AD). Approximately one third of AD patients develop a dupilumab-associated ocular surface disease (DAOSD), of which the pathomechanism is poorly understood. This study aimed at investigating inflammatory markers in tear fluids of patients on dupilumab therapy. METHODS Tear fluids were collected from AD patients with DAOSD (ADwDAOSD), AD patients without DAOSD (ADw/oDAOSD), and non-AD patients before and during dupilumab therapy, and analyzed using a specialized proteomic approach quantifying inflammatory markers. The ocular surface microbiome was determined by next generation sequencing technology. RESULTS Upon dupilumab therapy, an upregulation of 31 inflammatory markers was observed in DAOSD tear fluids compared to baseline in AD patients. While IL-12B was upregulated in both ADwDAOSD and ADw/oDAOSD groups, the pattern of inflammatory markers significantly differed between groups and over time. In the ADwDAOSD group, a shift from a mixed Th2/Th17 pattern at baseline toward a Th1/Th17 profile under dupilumab was observed. Furthermore, an upregulation of remodeling and fibrosis markers was seen in DAOSD. Semantic map and hierarchical cluster analyses of baseline marker expression revealed four clusters distinguishing between AD and non-AD as well as ADwDAOSD and ADw/oDAOSD patient groups. In a pilot study, dupilumab therapy was associated with a decrease in richness of the ocular surface microbiome. CONCLUSIONS DAOSD is characterized by a Th1/Th17 cytokine profile and an upregulation of markers known to promote remodeling and fibrosis. The expression pattern of inflammatory markers in tear fluids at baseline might serve as a prognostic factor for DAOSD.
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Affiliation(s)
- Kathrin Thormann
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Anne-Sophie Lüthi
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Felix Deniau
- Department of Ophthalmology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Anja Heider
- Swiss Institute of Allergy and Asthma Research, University of Zurich, Davos, Switzerland
| | - Simone Cazzaniga
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Centro Studi GISED, Bergamo, Italy
| | - Susanne Radonjic-Hoesli
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Mathias Lehmann
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Christoph Schlapbach
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Elio L Herzog
- Department of Ophthalmology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Department for BioMedical Research, University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Marco Kreuzer
- Interfaculty Bioinformatics Unit and Swiss Institute of Bioinformatics, University of Bern, Bern, Switzerland
| | - Martin S Zinkernagel
- Department of Ophthalmology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Department for BioMedical Research, University of Bern, Bern, Switzerland
| | - Cezmi A Akdis
- Swiss Institute of Allergy and Asthma Research, University of Zurich, Davos, Switzerland
| | - Denise C Zysset-Burri
- Department of Ophthalmology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Department for BioMedical Research, University of Bern, Bern, Switzerland
| | - Hans-Uwe Simon
- Institute of Pharmacology, University of Bern, Bern, Switzerland
- Institute of Biochemistry, Brandenburg Medical School, Neuruppin, Germany
| | - Dagmar Simon
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
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14
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Paschall L, Carrozzi S, Tabdanov E, Dhawan A, Szczesny SE. Cyclic loading induces anabolic gene expression in ACLs in a load-dependent and sex-specific manner. J Orthop Res 2024; 42:267-276. [PMID: 37602554 DOI: 10.1002/jor.25677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 06/28/2023] [Accepted: 07/26/2023] [Indexed: 08/22/2023]
Abstract
Anterior cruciate ligament (ACL) injuries are historically thought to be a result of a single acute overload or traumatic event. However, recent studies suggest that ACL failure may be a consequence of fatigue damage. Additionally, the remodeling response of ACLs to fatigue loading is unknown. Therefore, the objective of this study was to investigate the remodeling response of ACLs to cyclic loading. Furthermore, given that women have an increased rate of ACL rupture, we investigated whether this remodeling response is sex specific. ACLs were harvested from male and female New Zealand white rabbits and cyclically loaded in a tensile bioreactor mimicking the full range of physiological loading (2, 4, and 8 MPa). Expression of markers for anabolic and catabolic tissue remodeling, as well as inflammatory cytokines, was quantified using quantitative reverse transcription polymerase chain reaction. We found that the expression of markers for tissue remodeling of the ACL is dependent on the magnitude of loading and is sex specific. Male ACLs activated an anabolic response to cyclic loading at 4 MPa but turned off remodeling at 8 MPa. These data support the hypothesis that noncontact ACL injury may be a consequence of failed tissue remodeling and inadequate repair of microtrauma resulting from elevated loading. Compared to males, female ACLs failed to increase anabolic gene expression with loading and exhibited higher expression of catabolic genes at all loading levels, which may explain the increased rate of ACL tears in women. Together, these data provide insight into load-induced ACL remodeling and potential causes of tissue rupture.
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Affiliation(s)
- Lauren Paschall
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania, USA
| | - Sabrina Carrozzi
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania, USA
| | - Erdem Tabdanov
- Department of Pharmacology, The Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - Aman Dhawan
- Department of Orthopaedics and Rehabilitation, The Pennsylvania State University, Hershey, Pennsylvania, USA
| | - Spencer E Szczesny
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania, USA
- Department of Orthopaedics and Rehabilitation, The Pennsylvania State University, Hershey, Pennsylvania, USA
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15
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Shang T, Zhou HJ, Wang YS, Qiu C, Chen TC, Sun J, Lu T, Wu Z, Zhang H, Li Z, Li DL. Mid-term Results of the Treatment of Isolated Dissection of the Celiac Artery: A Comparative Analysis of Endovascular Versus Conservative Therapy. J Endovasc Ther 2024; 31:80-88. [PMID: 35852451 DOI: 10.1177/15266028221112254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVES Endovascular treatment (EVT) is an alternative method used to treat isolated dissection of the celiac artery (IDCA). However, only a few mid-term results have been reported. This study aimed to analyze and compare the outcomes of endovascular and non-operative therapies for IDCA. METHODS Data from a cohort of consecutive IDCA patients enrolled in the study hospital between April 2012 and September 2020 were retrospectively reviewed. Demographic information, imaging features, treatment modalities, and follow-up results of celiac artery remodeling and adverse events were collected and analyzed. RESULTS A total of 87 patients were enrolled in the study. Stents were deployed in 68 patients, and non-operative treatment (blood pressure control and pain management) was continued in the remaining 19 patients who did not receive stenting; among these 19 patients, EVT failed in 6. The mean follow-up period was 37.3 (range, 10-85 months) and 44.0 (range, 9-80 months) months in the EVT and non-operative groups, respectively. During follow-up, the overall complete remodeling (absence of residual dissection with no false lumen or no intramural thrombus) rate was significantly higher in the EVT group than in the non-operative group (87.3% vs 7.1%, p<0.001). The incomplete remodeling (improved true lumen with malabsorption or partial thrombosis of the false lumen) rate was not significantly different between the EVT and non-operative groups (6.3% vs 14.3%; p=0.2984). Meanwhile, the adverse event-free survival rates were 89.0%, 67.0%, and 67.0% at 1, 3, and 5 years, respectively, in the EVT group compared with 39.7% and 29.8% at 1 and 3 years in the non-operative group (p<0.0001). CONCLUSIONS EVT for IDCA may be considered an effective management option with a favorable clinical success rate, an encouraging complete remodeling rate, and a satisfactory adverse event-free survival rate. However, further evaluation with a long-term follow-up is required. CLINICAL IMPACT Endovascular intervention for isolated dissection of the celiac artery has attracted inadequate attention. In this retrospective study with comparative analysis of endovascular versus conservative therapy for isolated dissection of the celiac artery patients, a better complete remodeling rate and a higher adverse event-free survival rate were observed in the endovascular treatment (EVT) group during follow-up, indicating that EVT could be an effective management option for isolated dissection of the celiac artery.
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Affiliation(s)
- Tao Shang
- Department of Vascular Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Hua-Ji Zhou
- Department of Vascular Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Vascular Surgery, Ping Hu People's Hospital, Jiaxing, China
| | - Yi-Shu Wang
- Department of Vascular Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chenyang Qiu
- Department of Vascular Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Tian-Chi Chen
- Department of Vascular Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jie Sun
- Department of Vascular Surgery, Hwa Mei Hospital, University of Chinese Academy of Sciences (Ningbo No.2 Hospital), Ningbo, China
| | - Tian Lu
- Department of Vascular Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Ziheng Wu
- Department of Vascular Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Hongkun Zhang
- Department of Vascular Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhenjiang Li
- Department of Vascular Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Dong-Lin Li
- Department of Vascular Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Huang Y, Yan B, Meng C, Zhang L, Wang C. Matrix metalloproteinases in chronic rhinosinusitis. Expert Rev Clin Immunol 2024:1-12. [PMID: 38251631 DOI: 10.1080/1744666x.2024.2302362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 01/03/2024] [Indexed: 01/23/2024]
Abstract
INTRODUCTION Matrix metalloproteinases (MMPs) are a group of enzymes that are essential in maintaining extracellular matrix (ECM) homeostasis, regulating inflammation and tissue remodeling. In chronic rhinosinusitis (CRS), the overexpression of certain MMPs can contribute to chronic nasal tissue inflammation, ECM remodeling, and tissue repair. AREAS COVERED This review provides a comprehensive overview of the biological characteristics and functions of the MMP family, particularly focusing on the expression and activity of MMPs in patients with CRS, and delves into their role in the pathogenesis of CRS and their potential as therapeutic targets. EXPERT OPINION MMPs are important in tissue remodeling and have been implicated in the pathophysiology of CRS. Previous studies have shown that the expression of MMPs is upregulated in the nasal mucosa of patients with CRS and positively correlates with the severity of CRS. However, there is still a large gap in the research content of MMP in CRS, and the specific expression and pathogenic mechanism of MMP still need to be clarified. The significance and value of the ratio of MMP to tissue inhibitors of metalloproteinase (TIMP) in diseases still need to be demonstrated. Moreover, further studies are needed to assess the efficacy and safety of biologics that target MMPs in patients with CRS.
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Affiliation(s)
- Yuqing Huang
- Department of Otolaryngology, Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing Laboratory of Allergic Diseases, Beijing Key Laboratory of Nasal Diseases, Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Capital Medical University, Beijing, China
- Research Unit of Diagnosis and Treatment of Chronic Nasal Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Bing Yan
- Department of Otolaryngology, Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing Laboratory of Allergic Diseases, Beijing Key Laboratory of Nasal Diseases, Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Capital Medical University, Beijing, China
- Research Unit of Diagnosis and Treatment of Chronic Nasal Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Chen Meng
- Department of Otolaryngology, Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing Laboratory of Allergic Diseases, Beijing Key Laboratory of Nasal Diseases, Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Capital Medical University, Beijing, China
- Research Unit of Diagnosis and Treatment of Chronic Nasal Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Luo Zhang
- Department of Otolaryngology, Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing Laboratory of Allergic Diseases, Beijing Key Laboratory of Nasal Diseases, Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Capital Medical University, Beijing, China
- Research Unit of Diagnosis and Treatment of Chronic Nasal Diseases, Chinese Academy of Medical Sciences, Beijing, China
- Department of Allergy, Beijing TongRen Hospital, Capital Medical University, Beijing, China
| | - Chengshuo Wang
- Department of Otolaryngology, Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing Laboratory of Allergic Diseases, Beijing Key Laboratory of Nasal Diseases, Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Capital Medical University, Beijing, China
- Research Unit of Diagnosis and Treatment of Chronic Nasal Diseases, Chinese Academy of Medical Sciences, Beijing, China
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Kantor PF, Shi L, Colan SD, Orav EJ, Wilkinson JD, Hamza TH, Webber SA, Canter CE, Towbin JA, Everitt MD, Pahl E, Ware SM, Rusconi PG, Lamour JM, Jefferies JL, Addonizio LJ, Lipshultz SE. Progressive Left Ventricular Remodeling for Predicting Mortality in Children With Dilated Cardiomyopathy: The Pediatric Cardiomyopathy Registry. J Am Heart Assoc 2024; 13:e022557. [PMID: 38214257 PMCID: PMC10926795 DOI: 10.1161/jaha.121.022557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 12/08/2023] [Indexed: 01/13/2024]
Abstract
BACKGROUND Pediatric dilated cardiomyopathy often leads to death or cardiac transplantation. We sought to determine whether changes in left ventricular (LV) end-diastolic dimension (LVEDD), LV end-diastolic posterior wall thickness, and LV fractional shortening (LVFS) over time may help predict adverse outcomes. METHODS AND RESULTS We studied children up to 18 years old with dilated cardiomyopathy, enrolled between 1990 and 2009 in the Pediatric Cardiomyopathy Registry. Changes in LVFS, LVEDD, LV end-diastolic posterior wall thickness, and the LV end-diastolic posterior wall thickness:LVEDD ratio between baseline and follow-up echocardiograms acquired ≈1 year after diagnosis were determined for children who, at the 1-year follow-up had died, received a heart transplant, or were alive and transplant-free. Within 1 year after diagnosis, 40 (5.0%) of the 794 eligible children had died, 117 (14.7%) had undergone cardiac transplantation, and 585 (73.7%) had survived without transplantation. At diagnosis, survivors had higher median LVFS and lower median LVEDD Z scores. Median LVFS and LVEDD Z scores improved among survivors (Z score changes of +2.6 and -1.1, respectively) but remained stable or worsened in the other 2 groups. The LV end-diastolic posterior wall thickness:LVEDD ratio increased in survivors only, suggesting beneficial reverse LV remodeling. The risk for death or cardiac transplantation up to 7 years later was lower when LVFS was improved at 1 year (hazard ratio [HR], 0.83; P=0.004) but was higher in those with progressive LV dilation (HR, 1.45; P<0.001). CONCLUSIONS Progressive deterioration in LV contractile function and increasing LV dilation are associated with both early and continuing mortality in children with dilated cardiomyopathy. Serial echocardiographic monitoring of these children is therefore indicated. REGISTRATION URL: https://www.clinicaltrials.gov; Unique identifier: NCT00005391.
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Affiliation(s)
- Paul F. Kantor
- Children’s Hospital Los Angeles and Keck School of Medicine of USCLos AngelesCA
| | - Ling Shi
- New England Research InstitutesWatertownMA
| | | | | | | | | | | | | | | | | | - Elfriede Pahl
- Ann and Robert H. Lurie Children’s Hospital of ChicagoChicagoIL
| | | | | | | | | | | | - Steven E. Lipshultz
- University at Buffalo Jacobs School of Medicine and Biomedical SciencesBuffaloNY
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18
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Paques M, Krivosic V, Castro-Farias D, Dulière C, Hervé D, Chaumette C, Rossant F, Taleb A, Lebenberg J, Jouvent E, Tadayoni R, Chabriat H. Early remodeling and loss of light-induced dilation of retinal small arteries in CADASIL. J Cereb Blood Flow Metab 2024:271678X241226484. [PMID: 38217411 DOI: 10.1177/0271678x241226484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2024]
Abstract
A major hurdle to therapeutic development in cerebral small vessel diseases is the lack of in-vivo method that can be used repeatedly for evaluating directly cerebral microvessels. We hypothesised that Adaptive Optics (AO), which allows resolution images up to 1-2 μm/pixel at retinal level, could provide a biomarker for monitoring vascular changes in CADASIL, a genetic form of such condition. In 98 patients and 35 healthy individuals, the wall to lumen ratio (WLR), outer and inner diameter, wall thickness and wall cross-sectional area were measured in a parapapillary and/or paramacular retinal artery. The ratio of vessel diameters before and after light flicker stimulations was also calculated to measure vasoreactivity (VR). Multivariate mixed-model analysis showed that WLR was increased and associated with a larger wall thickness and smaller internal diameter of retinal arteries in patients. The difference was maximal at the youngest age and gradually reduced with aging. Average VR in patients was less than half of that of controls since the youngest age. Any robust association was found with clinical or imaging manifestations of the disease. Thus, AO enables the detection of early functional or structural vascular alterations in CADASIL but with no obvious link to the clinical or imaging severity.
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Affiliation(s)
- Michel Paques
- Paris Eye Imaging Group, Clinical Investigation Center 1423, Quinze-Vingts Hospital, Sorbonne Université, INSERM, Paris, France
| | - Valérie Krivosic
- Paris Eye Imaging Group, Clinical Investigation Center 1423, Quinze-Vingts Hospital, Sorbonne Université, INSERM, Paris, France
- Ophthalmology Department, Hôpital Lariboisière, APHP and Université Paris-Cité, France
- Centre de Référence des Maladies Vasculaires Rares du Cerveau et de l'Œil (CERVCO), Hôpital Lariboisière, Paris, AP-HP, France
| | - Daniela Castro-Farias
- Paris Eye Imaging Group, Clinical Investigation Center 1423, Quinze-Vingts Hospital, Sorbonne Université, INSERM, Paris, France
| | - Cédric Dulière
- Paris Eye Imaging Group, Clinical Investigation Center 1423, Quinze-Vingts Hospital, Sorbonne Université, INSERM, Paris, France
| | - Dominique Hervé
- Centre de Référence des Maladies Vasculaires Rares du Cerveau et de l'Œil (CERVCO), Hôpital Lariboisière, Paris, AP-HP, France
- Translational Neurovascular Centre and Departement of Neurology, FHU NeuroVasc, Paris, France
| | - Céline Chaumette
- Paris Eye Imaging Group, Clinical Investigation Center 1423, Quinze-Vingts Hospital, Sorbonne Université, INSERM, Paris, France
| | | | - Abbas Taleb
- Centre de Référence des Maladies Vasculaires Rares du Cerveau et de l'Œil (CERVCO), Hôpital Lariboisière, Paris, AP-HP, France
| | - Jessica Lebenberg
- Translational Neurovascular Centre and Departement of Neurology, FHU NeuroVasc, Paris, France
- Université Paris-Cité, Inserm, NeuroDiderot, U1141, Paris, France
| | - Eric Jouvent
- Centre de Référence des Maladies Vasculaires Rares du Cerveau et de l'Œil (CERVCO), Hôpital Lariboisière, Paris, AP-HP, France
- Translational Neurovascular Centre and Departement of Neurology, FHU NeuroVasc, Paris, France
- Université Paris-Cité, Inserm, NeuroDiderot, U1141, Paris, France
| | - Ramin Tadayoni
- Paris Eye Imaging Group, Clinical Investigation Center 1423, Quinze-Vingts Hospital, Sorbonne Université, INSERM, Paris, France
- Ophthalmology Department, Hôpital Lariboisière, APHP and Université Paris-Cité, France
- Centre de Référence des Maladies Vasculaires Rares du Cerveau et de l'Œil (CERVCO), Hôpital Lariboisière, Paris, AP-HP, France
| | - Hugues Chabriat
- Centre de Référence des Maladies Vasculaires Rares du Cerveau et de l'Œil (CERVCO), Hôpital Lariboisière, Paris, AP-HP, France
- Translational Neurovascular Centre and Departement of Neurology, FHU NeuroVasc, Paris, France
- Université Paris-Cité, Inserm, NeuroDiderot, U1141, Paris, France
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Arias-González L, Rodríguez-Alcolado L, Laserna-Mendieta EJ, Navarro P, Lucendo AJ, Grueso-Navarro E. Fibrous Remodeling in Eosinophilic Esophagitis: Clinical Facts and Pathophysiological Uncertainties. Int J Mol Sci 2024; 25:927. [PMID: 38256003 PMCID: PMC10815180 DOI: 10.3390/ijms25020927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 01/08/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
Eosinophilic esophagitis (EoE) is a chronic, progressive, type 2 inflammatory disease with increasing global prevalence. An eosinophil-predominant inflammation that permeates the epithelium and deeper esophageal layers characterizes the disease. Several cytokines, mainly derived from inflammatory T-helper 2 (Th2) cells and epithelial cells, are involved in perpetuating inflammatory responses by increasing surface permeability and promoting tissue remodeling characterized by epithelial-mesenchymal transition (EMT) and collagen deposition. This leads to esophageal strictures and narrow caliber esophagi, which are proportional a patient's age and untreated disease length. Pathophysiological mechanisms leading to EoE have been described in recent years, and transforming growth factor beta (TGF)-beta have been involved in fibrotic phenomena in EoE. However, evidence on the dependence of these phenomena on TGF-beta is scarce and contradictory. This review provides state-of-the art knowledge on intimate mechanisms of esophageal fibrosis in EoE and its clinical consequences.
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Affiliation(s)
- Laura Arias-González
- Department of Gastroenterology, Hospital General de Tomelloso, Vereda de Socuéllamos s/n, 13700 Tomelloso, Spain; (L.A.-G.); (L.R.-A.); (E.J.L.-M.); (P.N.); (E.G.-N.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 28029 Madrid, Spain
- Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), 45071 Toledo, Spain
- Instituto de Investigación Sanitaria Princesa, 28006 Madrid, Spain
| | - Leticia Rodríguez-Alcolado
- Department of Gastroenterology, Hospital General de Tomelloso, Vereda de Socuéllamos s/n, 13700 Tomelloso, Spain; (L.A.-G.); (L.R.-A.); (E.J.L.-M.); (P.N.); (E.G.-N.)
- Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), 45071 Toledo, Spain
| | - Emilio J. Laserna-Mendieta
- Department of Gastroenterology, Hospital General de Tomelloso, Vereda de Socuéllamos s/n, 13700 Tomelloso, Spain; (L.A.-G.); (L.R.-A.); (E.J.L.-M.); (P.N.); (E.G.-N.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 28029 Madrid, Spain
- Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), 45071 Toledo, Spain
- Instituto de Investigación Sanitaria Princesa, 28006 Madrid, Spain
| | - Pilar Navarro
- Department of Gastroenterology, Hospital General de Tomelloso, Vereda de Socuéllamos s/n, 13700 Tomelloso, Spain; (L.A.-G.); (L.R.-A.); (E.J.L.-M.); (P.N.); (E.G.-N.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 28029 Madrid, Spain
- Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), 45071 Toledo, Spain
| | - Alfredo J. Lucendo
- Department of Gastroenterology, Hospital General de Tomelloso, Vereda de Socuéllamos s/n, 13700 Tomelloso, Spain; (L.A.-G.); (L.R.-A.); (E.J.L.-M.); (P.N.); (E.G.-N.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 28029 Madrid, Spain
- Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), 45071 Toledo, Spain
- Instituto de Investigación Sanitaria Princesa, 28006 Madrid, Spain
| | - Elena Grueso-Navarro
- Department of Gastroenterology, Hospital General de Tomelloso, Vereda de Socuéllamos s/n, 13700 Tomelloso, Spain; (L.A.-G.); (L.R.-A.); (E.J.L.-M.); (P.N.); (E.G.-N.)
- Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), 45071 Toledo, Spain
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20
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Reusswig F, Dille M, Krüger E, Ortscheid J, Feige T, Gorressen S, Fischer JW, Elvers M. Platelets modulate cardiac remodeling via the collagen receptor GPVI after acute myocardial infarction. Front Immunol 2024; 14:1275788. [PMID: 38274818 PMCID: PMC10808189 DOI: 10.3389/fimmu.2023.1275788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 12/21/2023] [Indexed: 01/27/2024] Open
Abstract
Introduction Platelets play an important role in cardiovascular diseases. After acute myocardial infarction, platelets display enhanced activation and migrate into the infarct zone. Furthermore, platelets trigger acute inflammation and cardiac remodeling leading to alterations in scar formation and cardiac function as observed in thrombocytopenic mice. GPVI is the major collagen receptor in platelets and important for platelet activation and thrombus formation and stability. Antibody induced deletion of GPVI at the platelet surface or treatment of mice with recombinant GPVI-Fc results in reduced inflammation and decreased infarct size in a mouse model of AMI. However, the role of GPVI has not been fully clarified to date. Methods/Results In this study, we found that GPVI is not involved in the inflammatory response in experimental AMI using GPVI deficient mice that were analyzed in a closed-chest model. However, reduced platelet activation in response to GPVI and PAR4 receptor stimulation resulted in reduced pro-coagulant activity leading to improved cardiac remodeling. In detail, GPVI deficiency in mice led to reduced TGF-β plasma levels and decreased expression of genes involved in cardiac remodeling such as Col1a1, Col3a1, periostin and Cthrc1 7 days post AMI. Consequently, collagen quality of the scar shifted to more tight and less fine collagen leading to improved scar formation and cardiac function in GPVI deficient mice at 21d post AMI. Conclusion Taken together, this study identifies GPVI as a major regulator of platelet-induced cardiac remodeling and supports the potential relevance of GPVI as therapeutic target to reduce ischemia reperfusion injury and to improve cardiac healing.
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Affiliation(s)
- Friedrich Reusswig
- Department of Vascular- and Endovascular Surgery, University Hospital Düsseldorf, Heinrich-Heine University, Düsseldorf, Germany
| | - Matthias Dille
- Department of Vascular- and Endovascular Surgery, University Hospital Düsseldorf, Heinrich-Heine University, Düsseldorf, Germany
| | - E. Krüger
- Department of Vascular- and Endovascular Surgery, University Hospital Düsseldorf, Heinrich-Heine University, Düsseldorf, Germany
| | - J. Ortscheid
- Department of Vascular- and Endovascular Surgery, University Hospital Düsseldorf, Heinrich-Heine University, Düsseldorf, Germany
| | - Tobias Feige
- Department of Vascular- and Endovascular Surgery, University Hospital Düsseldorf, Heinrich-Heine University, Düsseldorf, Germany
| | - S. Gorressen
- Institute for Pharmacology and Clinical Pharmacology, Heinrich-Heine University, Düsseldorf, Germany
| | - J.-W. Fischer
- Institute for Pharmacology and Clinical Pharmacology, Heinrich-Heine University, Düsseldorf, Germany
| | - Margitta Elvers
- Department of Vascular- and Endovascular Surgery, University Hospital Düsseldorf, Heinrich-Heine University, Düsseldorf, Germany
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21
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Zhang S, Wu S, Yao R, Wei X, Ohlstein B, Guo Z. Eclosion muscles secrete ecdysteroids to initiate asymmetric intestinal stem cell division in Drosophila. Dev Cell 2024; 59:125-140.e12. [PMID: 38096823 DOI: 10.1016/j.devcel.2023.11.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 10/05/2023] [Accepted: 11/14/2023] [Indexed: 01/11/2024]
Abstract
During organ development, tissue stem cells first expand via symmetric divisions and then switch to asymmetric divisions to minimize the time to obtain a mature tissue. In the Drosophila midgut, intestinal stem cells switch their divisions from symmetric to asymmetric at midpupal development to produce enteroendocrine cells. However, the signals that initiate this switch are unknown. Here, we identify the signal as ecdysteroids. In the presence of ecdysone, EcR and Usp promote the expression of E93 to suppress Br expression, resulting in asymmetric divisions. Surprisingly, the primary source of pupal ecdysone is not from the prothoracic gland but from dorsal internal oblique muscles (DIOMs), a group of transient skeletal muscles that are required for eclosion. Genetic analysis shows that DIOMs secrete ecdysteroids during mTOR-mediated muscle remodeling. Our findings identify sequential endocrine and mechanical roles for skeletal muscle, which ensure the timely asymmetric divisions of intestinal stem cells.
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Affiliation(s)
- Song Zhang
- Department of Medical Genetics, School of Basic Medicine, Institute for Brain Research, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Song Wu
- Department of Medical Genetics, School of Basic Medicine, Institute for Brain Research, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Ruining Yao
- Department of Medical Genetics, School of Basic Medicine, Institute for Brain Research, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xueying Wei
- Department of Medical Genetics, School of Basic Medicine, Institute for Brain Research, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Benjamin Ohlstein
- Children's Research Institute and Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Zheng Guo
- Department of Medical Genetics, School of Basic Medicine, Institute for Brain Research, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Cell Architecture Research Center, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China.
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22
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Duan C, Yu X, Feng X, Shi L, Wang D. Expression Profiles of Matrix Metalloproteinases and Their Inhibitors in Nasal Polyps. J Inflamm Res 2024; 17:29-39. [PMID: 38193041 PMCID: PMC10771793 DOI: 10.2147/jir.s438581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 12/28/2023] [Indexed: 01/10/2024] Open
Abstract
Purpose Nasal polyp (NP) is characterized by inflammation of the sinonasal mucosa with predominant inflammatory cell infiltration. Matrix metalloproteinases (MMPs) and tissue inhibitor of metalloproteinases (TIMPs) are recognized to play an important role in leukocyte migration in airway inflammation. Herein, efforts were made to confirm the expression levels of MMPs/TIMPs and study the relationship between the infiltration of inflammatory cells and local expression levels of MMPs/TIMPs in NPs. Patients and Methods NP tissues were obtained from 42 Chinese patients with bilateral nasal polyps during the endoscopic sinus surgery. Inferior turbinate (IT) tissues from 19 patients with septal deviation were taken during the rhinoplasty surgery as controls. mRNA and protein levels of MMP1, MMP9, MMP10, MMP12, TIMP1 and TIMP3 were assessed by quantitative PCR and immunohistochemistry. Results Eosinophilia (72%, 23/32 samples), neutrophilia (41%, 13/32 samples), and increase in macrophages (38%, 12/32 samples) were found in NP tissues. mRNA expression of MMP1 (10.9-fold), MMP9 (4.1-fold), MMP10 (6.7-fold) and MMP12 (3.5-fold) were significantly up-regulated, while TIMP1 (1.5-fold) and TIMP3 (6.0-fold) were significantly down-regulated in NPs (n=42) as compared to the controls (n=19). The immunostaining levels of all 4 MMPs and two TIMPs were higher in NPs than those in controls. The co-localization of MMP1/MMP10/MMP12 and macrophages were identified in NPs. MMP9 was mainly expressed in neutrophils, while TIMP1 or TIMP3 were mostly found in eosinophils in NPs. Conclusion The results of our study indicate that tissue remodeling is significant in NPs, where MMPs/TIMPs play important roles in both tissue remodeling and inflammatory cells infiltration.
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Affiliation(s)
- Chen Duan
- Department of Otorhinolaryngology, Qilu Hospital of Shandong University, National Health Commission (NHC) Key Laboratory of Otorhinolaryngology, Shandong University, Jinan, Shandong, 250000, People’s Republic of China
| | - Xuemin Yu
- Department of Otorhinolaryngology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, NHC Key Laboratory of Otorhinolaryngology (Shandong University), Qingdao, Shandong, 250000, People’s Republic of China
| | - Xin Feng
- Department of Otorhinolaryngology, Qilu Hospital of Shandong University, National Health Commission (NHC) Key Laboratory of Otorhinolaryngology, Shandong University, Jinan, Shandong, 250000, People’s Republic of China
| | - Li Shi
- Department of Otolaryngology, The Second Hospital of Shandong University, Jinan, Shandong, 250000, People’s Republic of China
| | - Deyun Wang
- Department of Otolaryngology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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Masuda M, Matsuda Y, Uematsu H, Sugino A, Ooka H, Kudo S, Fujii S, Asai M, Okamoto S, Ishihara T, Nanto K, Tsujimura T, Hata Y, Higashino N, Nakao S, Mano T. Clinical impact of left atrial remodeling pattern in patients with atrial fibrillation: Comparison of volumetric, electrical, and combined remodeling. J Cardiovasc Electrophysiol 2024; 35:171-181. [PMID: 38018401 DOI: 10.1111/jce.16129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/12/2023] [Accepted: 10/28/2023] [Indexed: 11/30/2023]
Abstract
INTRODUCTION Atrial fibrillation (AF) is accompanied by various types of remodeling, including volumetric enlargement and histological degeneration. Electrical remodeling reportedly reflects histological degeneration. PURPOSE To clarify the differences in determinants and clinical impacts among types of remodeling. METHODS This observational study included 1118 consecutive patients undergoing initial ablation for AF. Patients were divided into four groups: minimal remodeling (left atrial volume index [LAVI] < mean value and no low-voltage area [LVA], n = 477); volumetric remodeling (LAVI ≥ mean value and no LVA, n = 361); electrical remodeling (LAVI < mean value and LVA presence, n = 96); and combined remodeling (LAVI ≥ mean value and LVA presence, n = 184). AF recurrence and other clinical outcomes were followed up for 2 and 5 years, respectively. RESULTS Major determinants of each remodeling pattern were high age for electrical (odds ratio = 2.32, 95% confidence interval = 1.68-3.25) and combined remodeling (2.57, 1.88-3.49); female for electrical (3.85, 2.21-6.71) and combined remodeling (4.92, 2.90-8.25); persistent AF for combined remodeling (7.09, 3.75-13.4); and heart failure for volumetric (1.71, 1.51-2.53) and combined remodeling (2.21, 1.30-3.75). Recurrence rate after initial ablation increased in the order of minimal remodeling (20.1%), volumetric (27.4%) or electrical remodeling (36.5%), and combined remodeling (50.0%, p < .0001). A composite endpoint of heart failure, stroke, and death occurred in the order of minimal (3.4%), volumetric (7.5%) or electrical (8.3%), and combined remodeling (15.2%, p < .0001). CONCLUSION Volumetric, electrical, and combined remodeling were each associated with a unique patient background, and defined rhythm and other clinical outcomes.
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Affiliation(s)
- Masaharu Masuda
- Kansai Rosai Hospital Cardiovascular Center, Amagasaki, Hyogo, Japan
| | - Yasuhiro Matsuda
- Kansai Rosai Hospital Cardiovascular Center, Amagasaki, Hyogo, Japan
| | - Hiroyuki Uematsu
- Kansai Rosai Hospital Cardiovascular Center, Amagasaki, Hyogo, Japan
| | - Ayako Sugino
- Kansai Rosai Hospital Cardiovascular Center, Amagasaki, Hyogo, Japan
| | - Hirotaka Ooka
- Kansai Rosai Hospital Cardiovascular Center, Amagasaki, Hyogo, Japan
| | - Satoshi Kudo
- Kansai Rosai Hospital Cardiovascular Center, Amagasaki, Hyogo, Japan
| | - Subaru Fujii
- Kansai Rosai Hospital Cardiovascular Center, Amagasaki, Hyogo, Japan
| | - Mitsutoshi Asai
- Kansai Rosai Hospital Cardiovascular Center, Amagasaki, Hyogo, Japan
| | - Shin Okamoto
- Kansai Rosai Hospital Cardiovascular Center, Amagasaki, Hyogo, Japan
| | - Takayuki Ishihara
- Kansai Rosai Hospital Cardiovascular Center, Amagasaki, Hyogo, Japan
| | - Kiyonori Nanto
- Kansai Rosai Hospital Cardiovascular Center, Amagasaki, Hyogo, Japan
| | - Takuya Tsujimura
- Kansai Rosai Hospital Cardiovascular Center, Amagasaki, Hyogo, Japan
| | - Yosuke Hata
- Kansai Rosai Hospital Cardiovascular Center, Amagasaki, Hyogo, Japan
| | - Naoko Higashino
- Kansai Rosai Hospital Cardiovascular Center, Amagasaki, Hyogo, Japan
| | - Sho Nakao
- Kansai Rosai Hospital Cardiovascular Center, Amagasaki, Hyogo, Japan
| | - Toshiaki Mano
- Kansai Rosai Hospital Cardiovascular Center, Amagasaki, Hyogo, Japan
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Perlato M, Mecheri V, Vivarelli E, Accinno M, Vultaggio A, Matucci A. "Patient remodeling" as a consequence of uncontrolled and prolonged OCS use in severe asthma: how biologic therapy can reverse a dangerous trend. J Asthma 2024; 61:72-75. [PMID: 37615543 DOI: 10.1080/02770903.2023.2241910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 07/24/2023] [Indexed: 08/25/2023]
Abstract
INTRODUCTION Asthma is a chronic inflammatory disease that can lead to airways remodeling. Despite their well-known side-effects, oral corticosteroids (OCS) continue to be used to reduce exacerbations and control asthma symptoms in many patients. CASE STUDY We describe two cases of uncontrolled severe asthma characterized by systemic clinical consequences of prolonged OCS use, such as diabetes, weight gain, and osteoporosis. RESULTS Both patients were treated with Dupilumab. During follow-up both patients showed an improvement in asthma control and were able to gradually taper the OCS dose, thus reducing the clinical burden associated with hypercortisolism. CONCLUSION Dupilumab was able to control both the inflammatory-induced "airway remodeling" as well as the OCS-induced "patient remodeling".
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Affiliation(s)
- Margherita Perlato
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Valentina Mecheri
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | | | - Matteo Accinno
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Alessandra Vultaggio
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
- Immunoallergology Unit, Careggi University Hospital, Florence, Italy
| | - Andrea Matucci
- Immunoallergology Unit, Careggi University Hospital, Florence, Italy
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Vitouš J, Jiřík R, Stračina T, Hendrych M, Nádeníček J, Macíček O, Tian Y, Krátká L, Dražanová E, Nováková M, Babula P, Panovský R, DiBella E, Starčuk Z. T1 mapping of myocardium in rats using self-gated golden-angle acquisition. Magn Reson Med 2024; 91:368-380. [PMID: 37811699 DOI: 10.1002/mrm.29846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 07/19/2023] [Accepted: 08/10/2023] [Indexed: 10/10/2023]
Abstract
PURPOSE The aim of this study is to design a method of myocardial T1 quantification in small laboratory animals and to investigate the effects of spatiotemporal regularization and the needed acquisition duration. METHODS We propose a compressed-sensing approach to T1 quantification based on self-gated inversion-recovery radial two/three-dimensional (2D/3D) golden-angle stack-of-stars acquisition with image reconstruction performed using total-variation spatiotemporal regularization. The method was tested on a phantom and on a healthy rat, as well as on rats in a small myocardium-remodeling study. RESULTS The results showed a good match of the T1 estimates with the results obtained using the ground-truth method on a phantom and with the literature values for rats myocardium. The proposed 2D and 3D methods showed significant differences between normal and remodeling myocardium groups for acquisition lengths down to approximately 5 and 15 min, respectively. CONCLUSIONS A new 2D and 3D method for quantification of myocardial T1 in rats was proposed. We have shown the capability of both techniques to distinguish between normal and remodeling myocardial tissue. We have shown the effects of image-reconstruction regularization weights and acquisition length on the T1 estimates.
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Affiliation(s)
- Jiří Vitouš
- Institute of Scientific Instruments, Czech Academy of Sciences, Brno, Czechia
- Faculty of Electrical Engineering and Communication, Brno University of Technology, Brno, Czechia
| | - Radovan Jiřík
- Institute of Scientific Instruments, Czech Academy of Sciences, Brno, Czechia
| | - Tibor Stračina
- Department of Physiology, Masaryk University, Faculty of Medicine, Brno, Czechia
| | - Michal Hendrych
- First Department of Pathology, St. Anne's University Hospital and Faculty of Medicine Masaryk University, Brno, Czechia
| | - Jaroslav Nádeníček
- Department of Physiology, Masaryk University, Faculty of Medicine, Brno, Czechia
| | - Ondřej Macíček
- Institute of Scientific Instruments, Czech Academy of Sciences, Brno, Czechia
| | - Ye Tian
- Viterbi School of Engineering, University of Southern California, Los Angeles, California, USA
| | - Lucie Krátká
- Institute of Scientific Instruments, Czech Academy of Sciences, Brno, Czechia
| | - Eva Dražanová
- Institute of Scientific Instruments, Czech Academy of Sciences, Brno, Czechia
- Department of Pharmacology, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Marie Nováková
- Department of Physiology, Masaryk University, Faculty of Medicine, Brno, Czechia
| | - Petr Babula
- Department of Physiology, Masaryk University, Faculty of Medicine, Brno, Czechia
| | - Roman Panovský
- International Clinical Research Center, St. Anne's Faculty Hospital, Faculty of Medicine, Masaryk University, Brno, Czechia
- 1st Department of Internal Medicine/Cardioangiology, St. Anne's Faculty Hospital, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Edward DiBella
- School of Medicine, University of Utah, Salt Lake City, Utah, USA
| | - Zenon Starčuk
- Institute of Scientific Instruments, Czech Academy of Sciences, Brno, Czechia
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Leduc L, Leclère M, Gauthier LG, Marcil O, Lavoie J. Severe asthma in horses is associated with increased airway innervation. J Vet Intern Med 2024; 38:485-494. [PMID: 38054207 PMCID: PMC10800206 DOI: 10.1111/jvim.16941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 11/02/2023] [Indexed: 12/07/2023] Open
Abstract
BACKGROUND Altered innervation structure and function contribute to airway hyperresponsiveness in human asthma, yet the role of innervation in airflow limitation in asthma in horses remains unknown. HYPOTHESIS To characterize peribronchial innervation in horses with asthma. We hypothesized that airway innervation increases in horses with asthma compared with controls. ANIMALS Formalin-fixed lung samples from 8 horses with severe asthma and 8 healthy horses from the Equine Respiratory Tissue Biobank. Ante-mortem lung function was recorded. METHODS Blinded case-control study. Immunohistochemistry was performed using rabbit anti-s100 antibody as a neuronal marker for myelinating and non-myelinating Schwann cells. The number and cumulative area of nerves in the peribronchial region and associated with airway smooth muscle were recorded using histomorphometry and corrected for airway size. RESULTS Both the number (median [IQR]: 1.87 × 10-5 nerves/μm2 [1.28 × 10-5 ]) and the cumulative nerve area (CNA; 1.03 × 10-3 CNA/μm2 [1.57 × 10-3 ]) were higher in the peribronchial region of horses with asthma compared with controls (5.17 × 10-6 nerves/μm2 [3.76 × 10-6 ], 4.14 × 10-4 CNA/μm2 [2.54 × 10-4 ], Mann-Whitney, P = .01). The number of nerves within or lining airway smooth muscle was significantly higher in horses with asthma (4.47 × 10-6 nerves/μm2 [5.75 × 10-6 ]) compared with controls (2.26 × 10-6 nerves/μm2 [1.16 × 10-6 ], Mann-Whitney, P = .03). CONCLUSIONS AND CLINICAL IMPORTANCE Asthma in horses is associated with greater airway innervation, possibly contributing to airway smooth muscle remodeling and exacerbating severity of the disease.
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Affiliation(s)
- Laurence Leduc
- Department of Clinical Sciences, Faculté de Médecine VétérinaireUniversité de MontréalSaint‐HyacintheQuebecCanada
| | - Mathilde Leclère
- Department of Clinical Sciences, Faculté de Médecine VétérinaireUniversité de MontréalSaint‐HyacintheQuebecCanada
| | | | | | - Jean‐Pierre Lavoie
- Department of Clinical Sciences, Faculté de Médecine VétérinaireUniversité de MontréalSaint‐HyacintheQuebecCanada
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Nelson MR, Zhang X, Podgaetz E, Wang X, Zhang Q, Pan Z, Spechler SJ, Souza RF. Th2 cytokine signaling through IL-4Rα increases eotaxin-3 secretion and tension in human esophageal smooth muscle. Am J Physiol Gastrointest Liver Physiol 2024; 326:G38-G52. [PMID: 37933466 DOI: 10.1152/ajpgi.00155.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 10/24/2023] [Accepted: 10/24/2023] [Indexed: 11/08/2023]
Abstract
In esophageal epithelial cells in eosinophilic esophagitis (EoE), Th2 cytokines (IL-4, IL-13) signal through IL-4Rα, activating JAK to increase eotaxin-3 secretion, which draws eosinophils into the mucosa. We explored whether Th2 cytokines also might stimulate eotaxin-3 secretion and increase tension in esophageal smooth muscle (ESM), which might impair esophageal distensibility, and whether those events could be blocked by proton pump inhibitors (PPIs) or agents that disrupt IL-4Rα signaling. We established human ESM cell cultures from organ donors, characterizing Th2 cytokine receptor and P-type ATPase expression by qPCR. We measured Th2 cytokine-stimulated eotaxin-3 secretion by enzyme-linked immunosorbent assay (ELISA) and ESM cell tension by gel contraction assay, before and after treatment with omeprazole, ruxolitinib (JAK inhibitor), or IL-4Rα blocking antibody. CPI-17 (inhibitor of a muscle-relaxing enzyme) effects were studied with CPI-17 knockdown by siRNA or CPI-17 phospho(T38A)-mutant overexpression. ESM cells expressed IL-4Rα and IL-13Rα1 but only minimal H+-K+-ATPase mRNA. Th2 cytokines increased ESM eotaxin-3 secretion and tension, effects blocked by ruxolitinib and IL-4Rα blocking antibody but not consistently blocked by omeprazole. IL-13 increased ESM tension by increasing CPI-17 expression and phosphorylation, effects blocked by CPI-17 knockdown. Blocking IL-4Rα decreased IL-13-stimulated eotaxin-3 secretion, CPI-17 expression, and tension in ESM. Th2 cytokines increase ESM eotaxin-3 secretion and tension via IL-4Rα signaling that activates CPI-17. Omeprazole does not reliably inhibit this process, but IL-4Rα blocking antibody does. This suggests that ESM eosinophilia and impaired esophageal distensibility might persist despite elimination of mucosal eosinophils by PPIs, and IL-4Rα blocking agents might be especially useful in this circumstance.NEW & NOTEWORTHY We have found that Th2 cytokines increase eotaxin-3 secretion and tension in esophageal smooth muscle (ESM) cells via IL-4Rα signaling. Unlike esophageal epithelial cells, ESM cells do not express H+-K+-ATPase, and omeprazole does not inhibit their cytokine-stimulated eotaxin-3 secretion or tension. An IL-4Rα blocking antibody reduces both eotaxin-3 secretion and tension induced by Th2 cytokines in ESM cells, suggesting that an agent such as dupilumab might be preferred for patients with EoE with esophageal muscle involvement.
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Affiliation(s)
- Melissa R Nelson
- Department of Medicine, Center for Esophageal Diseases, Baylor University Medical Center and Center for Esophageal Research, Baylor Scott and White Research Institute, Dallas, Texas, United States
| | - Xi Zhang
- Department of Medicine, Center for Esophageal Diseases, Baylor University Medical Center and Center for Esophageal Research, Baylor Scott and White Research Institute, Dallas, Texas, United States
| | - Eitan Podgaetz
- Center for Thoracic Surgery, Center for Esophageal Diseases, Baylor University Medical Center and Center for Esophageal Research, Baylor Scott and White Research Institute, Dallas, Texas, United States
| | - Xuan Wang
- Biostatistics Core, Baylor Scott and White Research Institute, Dallas, Texas, United States
| | - Qiuyang Zhang
- Department of Medicine, Center for Esophageal Diseases, Baylor University Medical Center and Center for Esophageal Research, Baylor Scott and White Research Institute, Dallas, Texas, United States
| | - Zui Pan
- College of Nursing and Health Innovation, The University of Texas at Arlington, Arlington, Texas, United States
| | - Stuart Jon Spechler
- Department of Medicine, Center for Esophageal Diseases, Baylor University Medical Center and Center for Esophageal Research, Baylor Scott and White Research Institute, Dallas, Texas, United States
| | - Rhonda F Souza
- Department of Medicine, Center for Esophageal Diseases, Baylor University Medical Center and Center for Esophageal Research, Baylor Scott and White Research Institute, Dallas, Texas, United States
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Choi R, Narayanan R, Jandu S, Savage W, Kang S, Wodu B, Nandakumar K, Santhanam L, Steppan J. Optimization of resting tension for wire myography in male rat pulmonary arteries. Physiol Rep 2024; 12:e15911. [PMID: 38212292 PMCID: PMC10784191 DOI: 10.14814/phy2.15911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/22/2023] [Accepted: 12/22/2023] [Indexed: 01/13/2024] Open
Abstract
Wire myography to test vasomotor functions of blood vessels ex-vivo are well-established for the systemic circulation, however, there is no consensus on protocols for pulmonary arteries. We created a standardized wire myography protocol for healthy rat PAs and validated this in a pulmonary hypertension (PH) model. Vessels stretched to higher initial tensions (5.0, 7.5 and 10.0 mN) exhibited a uniform response to phenylephrine, a larger dynamic range, and lower EC50 values. The endothelium-mediated relaxation showed that moderate tensions (7.5 and 10.0 mN) produced robust responses with higher maximum relaxation and lower EC50 values. For endothelium independent responses, the higher initial tension groups had lower and more consistent EC50 values than the lower initial tension groups. Pulmonary arteries from rats with PH were more responsive to vasoactive drugs when subjected to a higher initial tension. Notably, vessels in the PH group subjected to 15.0 mN exhibited high dynamic ranges in contractile and relaxation responses without tearing. Lastly, we observed attenuated cholinergic responses in these vessels-consistent with endothelial dysfunction in PH. Therefore, a moderate initial tension of 7.5-10.0 mN is optimal for healthy rat pulmonary arteries and a higher initial tension of 15.0 mN is optimal for pulmonary arteries from animals with PH.
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Affiliation(s)
- Rira Choi
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland, USA
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Roshini Narayanan
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland, USA
| | - Sandeep Jandu
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - William Savage
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland, USA
| | - Sara Kang
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Bulouere Wodu
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Kavitha Nandakumar
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Lakshmi Santhanam
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland, USA
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland, USA
| | - Jochen Steppan
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
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Nemes A. Myocardial Mechanics and Associated Valvular and Vascular Abnormalities in Left Ventricular Noncompaction Cardiomyopathy. J Clin Med 2023; 13:78. [PMID: 38202085 PMCID: PMC10779999 DOI: 10.3390/jcm13010078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 11/26/2023] [Accepted: 12/11/2023] [Indexed: 01/12/2024] Open
Abstract
Left ventricular (LV) non-compaction (LVNC) is a rare genetic cardiomyopathy due to abnormal intra-uterine arrest of compaction of the myocardial fibers during endomyocardial embryogenesis. Due to the partial or complete absence of LV compaction, the structure of the LV wall shows characteristic abnormalities, including a thin compacted epicardium and a thick non-compacted endocardium with prominent trabeculations and deep intertrabecular recesses. LVNC is frequently associated with chronic heart failure, life-threatening ventricular arrhythmias, and systemic embolic events. According to recent findings, in the presence of LVNC, dysfunctional LV proved to be associated with left atrial volumetric and functional abnormalities and consequential dilated and functionally impaired mitral annulus, partly explaining the higher prevalence of regurgitation. Although the non-compaction process morphologically affects only the LV, signs of remodeling of the right heart were also detected. Moreover, dilation and stiffening of the aorta were present. The aim of the present detailed review was to summarize findings regarding changes in cardiac mechanics, valvular abnormalities, and vascular remodeling detected in patients with LVNC.
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Affiliation(s)
- Attila Nemes
- Department of Medicine, Albert Szent-Györgyi Medical School, University of Szeged, 6725 Szeged, Hungary
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30
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Pedersen LN, Valenzuela Ripoll C, Ozcan M, Guo Z, Lotfinaghsh A, Zhang S, Ng S, Weinheimer C, Nigro J, Kovacs A, Diab A, Klaas A, Grogan F, Cho Y, Ataran A, Luehmann H, Heck A, Kolb K, Strong L, Navara R, Walls GM, Hugo G, Samson P, Cooper D, Reynoso FJ, Schwarz JK, Moore K, Lavine K, Rentschler SL, Liu Y, Woodard PK, Robinson C, Cuculich PS, Bergom C, Javaheri A. Cardiac radiation improves ventricular function in mice and humans with cardiomyopathy. Med 2023; 4:928-943.e5. [PMID: 38029754 DOI: 10.1016/j.medj.2023.10.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 08/30/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023]
Abstract
BACKGROUND Rapidly dividing cells are more sensitive to radiation therapy (RT) than quiescent cells. In the failing myocardium, macrophages and fibroblasts mediate collateral tissue injury, leading to progressive myocardial remodeling, fibrosis, and pump failure. Because these cells divide more rapidly than cardiomyocytes, we hypothesized that macrophages and fibroblasts would be more susceptible to lower doses of radiation and that cardiac radiation could therefore attenuate myocardial remodeling. METHODS In three independent murine heart failure models, including models of metabolic stress, ischemia, and pressure overload, mice underwent 5 Gy cardiac radiation or sham treatment followed by echocardiography. Immunofluorescence, flow cytometry, and non-invasive PET imaging were employed to evaluate cardiac macrophages and fibroblasts. Serial cardiac magnetic resonance imaging (cMRI) from patients with cardiomyopathy treated with 25 Gy cardiac RT for ventricular tachycardia (VT) was evaluated to determine changes in cardiac function. FINDINGS In murine heart failure models, cardiac radiation significantly increased LV ejection fraction and reduced end-diastolic volume vs. sham. Radiation resulted in reduced mRNA abundance of B-type natriuretic peptide and fibrotic genes, and histological assessment of the LV showed reduced fibrosis. PET and flow cytometry demonstrated reductions in pro-inflammatory macrophages, and immunofluorescence demonstrated reduced proliferation of macrophages and fibroblasts with RT. In patients who were treated with RT for VT, cMRI demonstrated decreases in LV end-diastolic volume and improvements in LV ejection fraction early after treatment. CONCLUSIONS These results suggest that 5 Gy cardiac radiation attenuates cardiac remodeling in mice and humans with heart failure. FUNDING NIH, ASTRO, AHA, Longer Life Foundation.
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Affiliation(s)
- Lauren N Pedersen
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | | | - Mualla Ozcan
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Zhen Guo
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Aynaz Lotfinaghsh
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Shiyang Zhang
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Sherwin Ng
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Carla Weinheimer
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Jessica Nigro
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Attila Kovacs
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Ahmed Diab
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Amanda Klaas
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Felicia Grogan
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Yoonje Cho
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Anahita Ataran
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Hannah Luehmann
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Abigail Heck
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Kollin Kolb
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Lori Strong
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Rachita Navara
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Gerard M Walls
- Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Belfast BT97AE, Northern Ireland
| | - Geoff Hugo
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Pamela Samson
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Daniel Cooper
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Francisco J Reynoso
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Julie K Schwarz
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Kaitlin Moore
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Kory Lavine
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Stacey L Rentschler
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Yongjian Liu
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Pamela K Woodard
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Clifford Robinson
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Phillip S Cuculich
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Carmen Bergom
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA.
| | - Ali Javaheri
- Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA; John J. Cochran Veterans Affairs Medical Center, St. Louis, MO 63106, USA.
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Zhang Y, Zhang L, Zhao W, Li N, Chen G, Ge J, Su X, Ge S, Sun C. Cardiac structural and functional remodeling in the fetuses associated with maternal hypothyroidism during pregnancy. J Matern Fetal Neonatal Med 2023; 36:2203796. [PMID: 37121903 DOI: 10.1080/14767058.2023.2203796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
OBJECTIVES We sought to investigate the effect of maternal hypothyroidism during pregnancy on fetal cardiac structural and functional remodeling using fetal echocardiography. METHODS A total of 59 pregnant women with history of hypothyroidism were prospectively enrolled as the study group, and 74 normal fetuses as the control group. Fetal echocardiography was performed on each subject. Demographic, clinical, and fetal echocardiographic variables were measured, including left ventricular (LV) and right ventricular (RV) free wall and ventricular septal thickness, fractional shortening (FS), stroke volume (SV), cardiac output (CO), combined cardiac output (CCO), cardiac index (CI), combined cardiac index (CCI), aortic and pulmonary artery velocity, ductus venosus (DV) and pulmonary vein (PV) spectral Doppler, and Tei index. RESULTS The incidence of echogenic intracardiac foci (EIF) was higher in the study group than that in the control group (18.6% vs. 6.8%, p = .036). The thickness of LV free wall and interventricular septum was reduced, the pulmonary velocities and CCI, RV FS, CO, and CI were lower, the S, D, S/A, and pulsatility index (PI) of DV were higher, and LV Tei index was higher in the study group compared with the control group. There was no significant difference in other variables between the two groups. CONCLUSIONS There is cardiac remodeling, and systolic, diastolic functional alterations in fetuses with maternal hypothyroidism. Further investigation is warranted to develop strategies to optimize the outcome of these fetuses.
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Affiliation(s)
- Yanhong Zhang
- Department of Ultrasound, The Fourth Hospital of Shijiazhuang, Shijiazhuang, China
| | - Lisi Zhang
- Department of Ultrasound, The Fourth Hospital of Shijiazhuang, Shijiazhuang, China
| | - Wei Zhao
- Department of Ultrasound, The Fourth Hospital of Shijiazhuang, Shijiazhuang, China
| | - Na Li
- Department of Ultrasound, The Fourth Hospital of Shijiazhuang, Shijiazhuang, China
| | - Guihong Chen
- Department of Ultrasound, The Fourth Hospital of Shijiazhuang, Shijiazhuang, China
| | - Jun Ge
- Department of Nutrition, The Fourth Hospital of Shijiazhuang, Shijiazhuang, China
| | - Xingna Su
- Department of Ultrasound, The Maternal and Child Health Hospital of Ningjin County, Xingtai, China
| | - Shuping Ge
- Department of Pediatric and Adult Congenital Cardiology, Geisinger Heart and Vascular Institute, Geisinger Clinic, Danville, PA, USA
| | - Congxin Sun
- Department of Ultrasound, The Fourth Hospital of Shijiazhuang, Shijiazhuang, China
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Zhao Y, Yao C, Yin H, Wang M, Li Z, Wang J, Hu Z, Wang S, Chang G. Prognosis and Remodeling after Endovascular Repair for Acute, Subacute, and Chronic Type B Aortic Dissection. J Endovasc Ther 2023; 30:838-848. [PMID: 35658611 DOI: 10.1177/15266028221098703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Thoracic endovascular aortic repair (TEVAR) for type B aortic dissection (TBAD) is already well introduced, but the best time point to perform TEVAR has not been defined. This study was to report mid- to long-term outcomes and aortic remodeling of TEVAR in patients with TBAD. MATERIALS AND METHODS In total, 318 TBAD patients from June 2001 to May 2016 were retrospectively reviewed. Patients were divided into 3 groups depending on interval between dissection onset to TEVAR: acute (0-7 days), subacute (8-30 days), and chronic (>30 days). Clinical and morphological data were collected and analyzed. RESULTS The follow-up aorta-related mortality rates in the 3 groups were 17.6%, 2.6%, 4.2%, and the proximal stent-induced new entry rates were 11.8%, 1.6%, 2.8%, respectively. Aortic remodeling was satisfied in both the acute and subacute group, but the false lumen diameter did not decrease (p>0.05) in the chronic group. Compared with the VIRTUE classification (acute, 0-14 days; subacute, 15-92 days; chronic, >92 days), mid- to long-term outcomes of patients within the first overlapped interval between the 2 classifications (8-14 days) were similar to that of subacute patients (15-30 days), while aortic remodeling of patients in the second overlapped interval (31-92 days) was similar to that of chronic patients (>92 days). CONCLUSIONS This study suggests that TEVAR for subacute TBAD is associated with a low long-term rate of aorta-related death. Aortic remodeling of chronic dissections is not satisfactory. Additional results suggest that the subacute phase (8-30 days) may be the optimal time to perform TEVAR for uncomplicated TBAD.
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Affiliation(s)
- Yang Zhao
- Vascular Surgery Department, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Vascular Surgery Department, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Chen Yao
- Vascular Surgery Department, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Henghui Yin
- Vascular Surgery Department, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Mian Wang
- Vascular Surgery Department, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zilun Li
- Vascular Surgery Department, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jingsong Wang
- Vascular Surgery Department, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zuojun Hu
- Vascular Surgery Department, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Shenming Wang
- Vascular Surgery Department, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Guangqi Chang
- Vascular Surgery Department, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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Lazzarin T, Martins D, Ballarin RS, Monte MG, Minicucci MF, Polegato BF, Zornoff L. The Role of Omega-3 in Attenuating Cardiac Remodeling and Heart Failure through the Oxidative Stress and Inflammation Pathways. Antioxidants (Basel) 2023; 12:2067. [PMID: 38136187 PMCID: PMC10741242 DOI: 10.3390/antiox12122067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/17/2023] [Accepted: 11/28/2023] [Indexed: 12/24/2023] Open
Abstract
Cardiac remodeling is defined as molecular, cellular, and interstitial changes that manifest clinically as alterations in the size, shape, and function of the heart. Despite the pharmacological approaches, cardiac remodeling-related mortality rates remain high. Therefore, other therapeutic options are being increasingly studied. This review highlights the role of omega-3 as an adjunctive therapy to attenuate cardiac remodeling, with an emphasis on its antioxidant and anti-inflammatory actions.
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Affiliation(s)
| | | | | | | | | | | | - Leonardo Zornoff
- Internal Medicine Department, Botucatu Medical School, São Paulo State University (UNESP), Botucatu 18600-000, Brazil; (T.L.); (D.M.); (R.S.B.); (M.G.M.); (M.F.M.); (B.F.P.)
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Drăgan A, Mateescu AD. Novel Biomarkers and Advanced Cardiac Imaging in Aortic Stenosis: Old and New. Biomolecules 2023; 13:1661. [PMID: 38002343 PMCID: PMC10669288 DOI: 10.3390/biom13111661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 11/12/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023] Open
Abstract
Currently, the symptomatic status and left ventricular ejection fraction (LVEF) play a crucial role in aortic stenosis (AS) assessment. However, the symptoms are often subjective, and LVEF is not a sensitive marker of left ventricle (LV) decompensation. Over the past years, the cardiac structure and function research on AS has increased due to advanced imaging modalities and potential therapies. New imaging parameters emerged as predictors of disease progression in AS. LV global longitudinal strain has proved useful for risk stratification in asymptomatic severe AS patients with preserved LVEF. The assessment of myocardial fibrosis by cardiac magnetic resonance is the most studied application and offers prognostic information on AS. Moreover, the usage of biomarkers in AS as objective measures of LV decompensation has recently gained more interest. The present review focuses on the transition from compensatory LV hypertrophy (H) to LV dysfunction and the biomarkers associated with myocardial wall stress, fibrosis, and myocyte death. Moreover, we discuss the potential impact of non-invasive imaging parameters for optimizing the timing of aortic valve replacement and provide insight into novel biomarkers for possible prognostic use in AS. However, data from randomized clinical trials are necessary to define their utility in daily practice.
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Affiliation(s)
- Anca Drăgan
- Department of Cardiovascular Anaesthesiology and Intensive Care, Emergency Institute for Cardiovascular Diseases “Prof Dr C C Iliescu”, 258 Fundeni Road, 022328 Bucharest, Romania
| | - Anca Doina Mateescu
- Department of Cardiology, Emergency Institute for Cardiovascular Diseases “Prof Dr C C Iliescu”, 258 Fundeni Road, 022328 Bucharest, Romania;
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Sauvé CP, Fiani N, Peralta S, Hatcher DC, Arzi B. Repair and remodeling of the mandibular head of the condylar process in four immature dogs. Front Vet Sci 2023; 10:1288938. [PMID: 38026680 PMCID: PMC10663213 DOI: 10.3389/fvets.2023.1288938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 10/19/2023] [Indexed: 12/01/2023] Open
Abstract
Spontaneous repair and remodeling of the mandibular head of the condylar process is a rarely reported outcome following condylectomy. This clinical report describes the spontaneous repair and subsequent remodeling of the mandibular head of the condylar process in four immature dogs that sustained traumatic injuries, necessitating surgical intervention through arthroplasty via partial or complete condylectomy, or caudal mandibulectomy. In subsequent evaluations, it was observed that all dogs exhibited clinically functional TMJs, as evidenced by an appropriate range of motion. These findings were corroborated by the owners' reports of the patient's normal eating and drinking abilities. Conventional and cone-beam computed tomography studies demonstrated the repair and remodeling of the osseous tissues of the mandibular head of the condylar process. Histopathology was unavailable to assess the novel tissues. No evidence of intraarticular or extraarticular ankylosis or osteoarthritic changes was observed.
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Affiliation(s)
| | - Nadine Fiani
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, United States
| | - Santiago Peralta
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, United States
| | - David C. Hatcher
- Department of Surgical and Radiological Sciences, University of California, Davis, Davis, CA, United States
| | - Boaz Arzi
- Department of Surgical and Radiological Sciences, University of California, Davis, Davis, CA, United States
- Veterinary Institute for Regenerative Cures, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States
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Konkimalla A, Konishi S, Macadlo L, Kobayashi Y, Farino ZJ, Miyashita N, El Haddad L, Morowitz J, Barkauskas CE, Agarwal P, Souma T, ElMallah MK, Tata A, Tata PR. Transitional cell states sculpt tissue topology during lung regeneration. Cell Stem Cell 2023; 30:1486-1502.e9. [PMID: 37922879 PMCID: PMC10762634 DOI: 10.1016/j.stem.2023.10.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 06/22/2023] [Accepted: 10/03/2023] [Indexed: 11/07/2023]
Abstract
Organ regeneration requires dynamic cell interactions to reestablish cell numbers and tissue architecture. While we know the identity of progenitor cells that replace lost tissue, the transient states they give rise to and their role in repair remain elusive. Here, using multiple injury models, we find that alveolar fibroblasts acquire distinct states marked by Sfrp1 and Runx1 that influence tissue remodeling and reorganization. Unexpectedly, ablation of alveolar epithelial type-1 (AT1) cells alone is sufficient to induce tissue remodeling and transitional states. Integrated scRNA-seq followed by genetic interrogation reveals RUNX1 is a key driver of fibroblast states. Importantly, the ectopic induction or accumulation of epithelial transitional states induce rapid formation of transient alveolar fibroblasts, leading to organ-wide fibrosis. Conversely, the elimination of epithelial or fibroblast transitional states or RUNX1 loss, leads to tissue simplification resembling emphysema. This work uncovered a key role for transitional states in orchestrating tissue topologies during regeneration.
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Affiliation(s)
- Arvind Konkimalla
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA; Medical Scientist Training Program, Duke University School of Medicine, Durham, NC 27710, USA
| | - Satoshi Konishi
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Lauren Macadlo
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Yoshihiko Kobayashi
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Zachary J Farino
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Naoya Miyashita
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Léa El Haddad
- Division of Pulmonary and Sleep Medicine, Department of Pediatrics, School of Medicine, Duke University, Durham, NC, USA
| | - Jeremy Morowitz
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Christina E Barkauskas
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Duke University School of Medicine, Durham, NC 27710, USA
| | - Pankaj Agarwal
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Tomokazu Souma
- Division of Nephrology, Department of Medicine, Duke University School of Medicine, Durham, NC, USA; Duke Regeneration Center, Duke University, Durham, NC 27710, USA
| | - Mai K ElMallah
- Division of Pulmonary and Sleep Medicine, Department of Pediatrics, School of Medicine, Duke University, Durham, NC, USA
| | - Aleksandra Tata
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA.
| | - Purushothama Rao Tata
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA; Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Duke University School of Medicine, Durham, NC 27710, USA; Duke Regeneration Center, Duke University, Durham, NC 27710, USA; Center for Advanced Genomic Technologies, Duke University, Durham, NC 27710, USA; Duke Cancer Institute, Duke University School of Medicine, Durham, NC 27710, USA.
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Matsumoto S, Anazawa U, Sasaki A, Hotta H, Watanabe I, Aoyama R. Remodeling of Lumbar Spinal Osteoid Osteoma Resected With Microscopic Surgery in a 15-Year-Old Basketball Player: A Case Report. Cureus 2023; 15:e48351. [PMID: 37937183 PMCID: PMC10626628 DOI: 10.7759/cureus.48351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/06/2023] [Indexed: 11/09/2023] Open
Abstract
This case report focuses on a 15-year-old competitive-level high school basketball player who experienced chronic low back pain. Diagnostic imaging revealed osteoid osteoma in the L5 posterior element, causing osteosclerotic deformity of the left lamina and more inferior facet. To return him to the condition of sports activity, less invasive surgery of microscopic tumor resection with autologous bone grafting was planned instead of CT-guided ablation, which can cause thermal injury to nearby tissues. This procedure could preserve spinal structures, including the facet, pedicle, and paravertebral muscles. The day after surgery, the patient experienced a complete resolution of lower back pain. He gradually resumed light exercise two months postoperatively. Three-month follow-up CT imaging revealed bone remodeling at the resection site, to return to complete basketball activities. Over five years, no tumor recurrence or symptoms were observed, and he maintained his competitive activity level.
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Affiliation(s)
- Shogo Matsumoto
- Orthopaedic Surgery, Tokyo Dental College Ichikawa General Hospital, Ichikawa, JPN
| | - Ukei Anazawa
- Orthopaedic Surgery, Tokyo Dental College Ichikawa General Hospital, Ichikawa, JPN
| | - Aya Sasaki
- Clinical Laboratory, Tokyo Dental College Ichikawa General Hospital, Ichikawa, JPN
| | - Hiraku Hotta
- Rehabilitation, Tokyo Dental College Ichikawa General Hospital, Ichikawa, JPN
| | - Itsuo Watanabe
- Orthopaedic Surgery, Tokyo Dental College Ichikawa General Hospital, Ichikawa, JPN
| | - Ryoma Aoyama
- Orthopaedic Surgery, Tokyo Dental College Ichikawa General Hospital, Ichikawa, JPN
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Kierdorf U, Gomez S, Stock SR, Antipova O, Kierdorf H. Bone resorption and formation in the pedicles of European roe deer (Capreolus capreolus) in relation to the antler cycle-A morphological and microanalytical study. J Anat 2023; 243:842-859. [PMID: 37278321 PMCID: PMC10557394 DOI: 10.1111/joa.13908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/18/2023] [Accepted: 05/19/2023] [Indexed: 06/07/2023] Open
Abstract
We analyzed pedicle bone from roe bucks that had died around antler casting or shortly before or during the rutting period. Pedicles obtained around antler casting were highly porous and showed signs of intense osteoclastic activity that had caused the formation of an abscission line. Following the detachment of the antler plus a portion of pedicle bone, osteoclastic activity in the pedicles continued for some time, and new bone was deposited onto the separation plane of the pedicle stump, leading to partial pedicle restoration. Pedicles obtained around the rutting period were compact structures. The newly formed, often very large secondary osteons, which had filled the resorption cavities, exhibited a lower mineral density than the persisting older bone. The middle zones of the lamellar infilling frequently showed hypomineralized lamellae and enlarged osteocyte lacunae. This indicates a deficiency in mineral elements during the formation of these zones that occurred along with peak antler mineralization. We suggest that growing antlers and compacting pedicles compete for mineral elements, with the rapidly growing antlers being the more effective sinks. The competition between the two simultaneously mineralizing structures is probably more severe in Capreolus capreolus than in other cervids. This is because roe bucks regrow their antlers during late autumn and winter, a period of limited food and associated mineral supply. The pedicle is a heavily remodeled bone structure with distinct seasonal variation in porosity. Pedicle remodeling differs in several aspects from the normal bone remodeling process in the mammalian skeleton.
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Affiliation(s)
- Uwe Kierdorf
- Department of BiologyUniversity of HildesheimHildesheimGermany
| | - Santiago Gomez
- Department of Pathological AnatomyUniversity of CadizCadizSpain
| | - Stuart R. Stock
- Department of Cell and Developmental Biology and Simpson Querrey InstituteNorthwestern UniversityChicagoIllinoisUSA
| | - Olga Antipova
- Advanced Photon Source, Argonne National LaboratoryLemontIllinoisUSA
| | - Horst Kierdorf
- Department of BiologyUniversity of HildesheimHildesheimGermany
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Paulus WJ. Paving the Road for Interleukin-6 Inhibition in Heart Failure With Preserved Ejection Fraction. JACC Heart Fail 2023; 11:1562-1564. [PMID: 37589616 DOI: 10.1016/j.jchf.2023.06.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 06/27/2023] [Indexed: 08/18/2023]
Affiliation(s)
- Walter J Paulus
- Amsterdam University Medical Centers, Amsterdam, the Netherlands.
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40
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Assaf AY, Noujaim C, Mekhael M, Younes H, Chouman N, Dhore-Patil A, Donnellan E, Feng H, Shan B, Kholmovski EG, Marrouche NF, Kreidieh O. Early Remodeling of the Left Atrium Following Catheter Ablation of Atrial Fibrillation: Insights From DECAAFII. JACC Clin Electrophysiol 2023; 9:2253-2262. [PMID: 37737783 DOI: 10.1016/j.jacep.2023.07.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 07/17/2023] [Accepted: 07/23/2023] [Indexed: 09/23/2023]
Abstract
BACKGROUND Left atrial (LA) enlargement is prevalent among atrial fibrillation (AF) patients and constitutes an important marker of atrial myopathy. Several studies have described reduction in LA volume post-catheter ablation (CA) of AF, however, none have investigated differences related to additional ablation outside the pulmonary veins (PVs). OBJECTIVES The authors sought to study early LA remodeling following CA of persistent AF and the impact of additional, fibrosis-guided extra-PV ablation. METHODS In this DECAAF II (Effect of MRI-Guided Fibrosis Ablation vs Conventional Catheter Ablation on Atrial Arrhythmia Recurrence in Patients With Persistent Atrial Fibrillation) trial subanalysis, patients with persistent AF were randomized to receive pulmonary vein isolation (PVI) only or PVI + fibrosis-guided ablation. Late gadolinium enhancement magnetic resonance imaging (LGE-MRI) was performed before and 3 months after CA. Patients were followed up with single-lead electrocardiogram devices for 12 to18 months. AF burden was calculated as days with AF divided by days monitored. RESULTS This analysis included 733 patients. The mean LA volume index (LAVI) before ablation was 62.0 mm3/m2 and after ablation was 51.3 mm3/m2, with a mean reduction of 10.7 mm3/m2 (P < 0.001). Patients in the fibrosis-guided ablation arm had more volume reduction than did those in the PVI-only group (12.1 mm3/m2 vs 9.3 mm3/m2; P = 0.02). LAVI reduction was greater in patients with heart failure (15.7 vs 8.9; P = 0.001) and was associated with improved left ventricular ejection fraction (LVEF) (r = 0.23; P < 0.001), reduced AF burden (r = -0.173; P < 0.001), improved LVEF, and improved quality of life (r = 0.146; P < 0.001). CONCLUSIONS We confirmed the presence of LA remodeling within 3 months after ablation for persistent AF. Importantly, we saw more LA volume reductions in patients in the PVI + fibrosis-guided ablation arm in comparison with PVI only, and in patients with LV dysfunction. LA volume reduction in response to CA is associated with decreased arrhythmia recurrence, reduced AF burden, and improved LVEF and quality of life.
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Affiliation(s)
- Ala Y Assaf
- Tulane Research Innovation for Arrhythmia Discovery, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Charbel Noujaim
- Tulane Research Innovation for Arrhythmia Discovery, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Mario Mekhael
- Tulane Research Innovation for Arrhythmia Discovery, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Hadi Younes
- Tulane Research Innovation for Arrhythmia Discovery, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Nour Chouman
- Tulane Research Innovation for Arrhythmia Discovery, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Aneesh Dhore-Patil
- Tulane Research Innovation for Arrhythmia Discovery, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Eoin Donnellan
- Tulane Research Innovation for Arrhythmia Discovery, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Han Feng
- Tulane Research Innovation for Arrhythmia Discovery, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Botao Shan
- Tulane Research Innovation for Arrhythmia Discovery, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Eugene G Kholmovski
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland, USA
| | - Nassir F Marrouche
- Tulane Research Innovation for Arrhythmia Discovery, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Omar Kreidieh
- Tulane Research Innovation for Arrhythmia Discovery, Tulane University School of Medicine, New Orleans, Louisiana, USA.
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41
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Yao RA, Reyre JL, Tamburrini KC, Haon M, Tranquet O, Nalubothula A, Mukherjee S, Le Gall S, Grisel S, Longhi S, Madhuprakash J, Bissaro B, Berrin JG. The Ustilago maydis AA10 LPMO is active on fungal cell wall chitin. Appl Environ Microbiol 2023; 89:e0057323. [PMID: 37702503 PMCID: PMC10617569 DOI: 10.1128/aem.00573-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 07/14/2023] [Indexed: 09/14/2023] Open
Abstract
Lytic polysaccharide monooxygenases (LPMOs) can perform oxidative cleavage of glycosidic bonds in carbohydrate polymers (e.g., cellulose, chitin), making them more accessible to hydrolytic enzymes. While most studies have so far mainly explored the role of LPMOs in a (plant) biomass conversion context, alternative roles and paradigms begin to emerge. The AA10 LPMOs are active on chitin and/or cellulose and mostly found in bacteria and in some viruses and archaea. Interestingly, AA10-encoding genes are also encountered in some pathogenic fungi of the Ustilaginomycetes class, such as Ustilago maydis, responsible for corn smut disease. Transcriptomic studies have shown the overexpression of the AA10 gene during the infectious cycle of U. maydis. In fact, U. maydis has a unique AA10 gene that codes for a catalytic domain appended with a C-terminal disordered region. To date, there is no public report on fungal AA10 LPMOs. In this study, we successfully produced the catalytic domain of this LPMO (UmAA10_cd) in Pichia pastoris and carried out its biochemical characterization. Our results show that UmAA10_cd oxidatively cleaves α- and β-chitin with C1 regioselectivity and boosts chitin hydrolysis by a GH18 chitinase from U. maydis (UmGH18A). Using a biologically relevant substrate, we show that UmAA10_cd exhibits enzymatic activity on U. maydis fungal cell wall chitin and promotes its hydrolysis by UmGH18A. These results represent an important step toward the understanding of the role of LPMOs in the fungal cell wall remodeling process during the fungal life cycle.IMPORTANCELytic polysaccharide monooxygenases (LPMOs) have been mainly studied in a biotechnological context for the efficient degradation of recalcitrant polysaccharides. Only recently, alternative roles and paradigms begin to emerge. In this study, we provide evidence that the AA10 LPMO from the phytopathogen Ustilago maydis is active against fungal cell wall chitin. Given that chitin-active LPMOs are commonly found in microbes, it is important to consider fungal cell wall as a potential target for this enigmatic class of enzymes.
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Affiliation(s)
- Roseline Assiah Yao
- INRAE, Aix Marseille Univ, UMR 1163 Biodiversité et Biotechnologie Fongiques (BBF), Marseille, France
| | - Jean-Lou Reyre
- INRAE, Aix Marseille Univ, UMR 1163 Biodiversité et Biotechnologie Fongiques (BBF), Marseille, France
- IFP Energies Nouvelles, Rueil-Malmaison, France
| | - Ketty C. Tamburrini
- INRAE, Aix Marseille Univ, UMR 1163 Biodiversité et Biotechnologie Fongiques (BBF), Marseille, France
- CNRS, Aix Marseille Univ, UMR 7257 Architecture et Fonction des Macromolécules Biologiques (AFMB), Marseille, France
| | - Mireille Haon
- INRAE, Aix Marseille Univ, UMR 1163 Biodiversité et Biotechnologie Fongiques (BBF), Marseille, France
- INRAE, Aix Marseille Univ, 3PE Platform, Marseille, France
| | - Olivier Tranquet
- INRAE, Aix Marseille Univ, UMR 1163 Biodiversité et Biotechnologie Fongiques (BBF), Marseille, France
| | - Akshay Nalubothula
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana, India
| | - Saumashish Mukherjee
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana, India
| | - Sophie Le Gall
- INRAE, UR1268 BIA, Nantes, France
- INRAE, PROBE Research Infrastructure, BIBS Facility, Nantes, France
| | - Sacha Grisel
- INRAE, Aix Marseille Univ, UMR 1163 Biodiversité et Biotechnologie Fongiques (BBF), Marseille, France
- INRAE, Aix Marseille Univ, 3PE Platform, Marseille, France
| | - Sonia Longhi
- CNRS, Aix Marseille Univ, UMR 7257 Architecture et Fonction des Macromolécules Biologiques (AFMB), Marseille, France
| | - Jogi Madhuprakash
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana, India
| | - Bastien Bissaro
- INRAE, Aix Marseille Univ, UMR 1163 Biodiversité et Biotechnologie Fongiques (BBF), Marseille, France
| | - Jean-Guy Berrin
- INRAE, Aix Marseille Univ, UMR 1163 Biodiversité et Biotechnologie Fongiques (BBF), Marseille, France
- INRAE, Aix Marseille Univ, 3PE Platform, Marseille, France
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Nemes A, Kormányos Á, Ambrus N, Lengyel C, Valkusz Z. Myocardial, Valvular, and Vascular Structural and Functional Properties in Acromegaly. J Clin Med 2023; 12:6857. [PMID: 37959322 PMCID: PMC10648583 DOI: 10.3390/jcm12216857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/18/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023] Open
Abstract
Acromegaly is an uncommon systematic endocrine disease caused by the hypersecretion of human growth hormone and, consequently, of insulin-like growth factor-1 during adulthood. Acromegaly could cause a typical cardiomyopathy characterized by left ventricular hypertrophy associated with diastolic dysfunction, which later could progress to systolic dysfunction. Moreover, some valvular and vascular abnormalities are also associated with acromegaly. This present review aims to summarize available information regarding acromegaly-associated abnormalities in myocardial, valvular, and vascular structural and functional properties and their relationship to disease activity and treatment options.
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Affiliation(s)
- Attila Nemes
- Department of Medicine, Albert Szent-Györgyi Medical School, University of Szeged, 6725 Szeged, Hungary; (Á.K.); (N.A.); (C.L.); (Z.V.)
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Pirri C, Caroccia B, Angelini A, Piazza M, Petrelli L, Caputo I, Montemurro C, Ruggieri P, De Caro R, Stecco C. A New Player in the Mechanobiology of Deep Fascia: Yes-Associated Protein (YAP). Int J Mol Sci 2023; 24:15389. [PMID: 37895068 PMCID: PMC10607668 DOI: 10.3390/ijms242015389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 10/14/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
Recent studies have demonstrated that fascial fibroblasts are susceptible to mechanical stimuli, leading to the remodeling of the extracellular matrix (ECM). Moreover, the extensive literature on Yes-associated protein (YAP) has shown its role in cell mechanics, linking cell properties, such as shape, adhesion, and size, to the expression of specific genes. The aim of this study was to investigate the presence of YAP in deep fascia and its activation after a mechanical stimulus was induced via a focal extracorporeal shockwave (fESW) treatment. Thoracolumbar fascia (TLF) samples were collected from eight patients (age: 30-70 years; four males and four females) who had undergone spine elective surgical procedures at the Orthopedic Clinic of University of Padova. YAP was measured in both tissue and TLF-derived fibroblasts through immunoblotting. COL1A1 and HABP2 gene expression were also evaluated in fibroblasts 2, 24, and 48 h after the fESW treatment. YAP was expressed in all the examined tissues. The ratio between the active/inactive forms (YAP/p-YAP) of the protein significantly increased in fascial fibroblasts after mechanical stimulation compared to untreated cells (p = 0.0022). Furthermore, COL1A1 and HABP2 gene expression levels were increased upon treatment. These findings demonstrate that YAP is expressed in the deep fascia of the thoracolumbar region, suggesting its involvement in fascial mechanotransduction processes, remodeling, regeneration, and fibrogenesis. This study indicates, for the first time, that YAP is a "new player" in the mechanobiology of deep fascia.
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Affiliation(s)
- Carmelo Pirri
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, 35121 Padova, Italy; (R.D.C.); (C.S.)
| | - Brasilina Caroccia
- Department of Medicine-DIMED, University of Padova, 35128 Padova, Italy; (B.C.); (M.P.); (L.P.); (I.C.)
| | - Andrea Angelini
- Department of Orthopedics and Orthopedic Oncology, University of Padova, 35128 Padova, Italy; (A.A.); (P.R.)
| | - Maria Piazza
- Department of Medicine-DIMED, University of Padova, 35128 Padova, Italy; (B.C.); (M.P.); (L.P.); (I.C.)
| | - Lucia Petrelli
- Department of Medicine-DIMED, University of Padova, 35128 Padova, Italy; (B.C.); (M.P.); (L.P.); (I.C.)
| | - Ilaria Caputo
- Department of Medicine-DIMED, University of Padova, 35128 Padova, Italy; (B.C.); (M.P.); (L.P.); (I.C.)
| | | | - Pietro Ruggieri
- Department of Orthopedics and Orthopedic Oncology, University of Padova, 35128 Padova, Italy; (A.A.); (P.R.)
| | - Raffaele De Caro
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, 35121 Padova, Italy; (R.D.C.); (C.S.)
| | - Carla Stecco
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, 35121 Padova, Italy; (R.D.C.); (C.S.)
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Yamada K, Tsukagoshi Y, Hoshi T, Suzuki M, Hosono Y, Shimada H, Nomura S, Ikezawa Y. A Pediatric Case of Cubitus Varus Deformity due to Olecranon Fracture. JMA J 2023; 6:556-560. [PMID: 37941687 PMCID: PMC10627793 DOI: 10.31662/jmaj.2023-0060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 06/21/2023] [Indexed: 11/10/2023] Open
Abstract
We encountered a pediatric case of cubitus varus deformity with a sheared olecranon fracture in an 8-year-old boy who underwent corrective osteotomy without relevant medical history. The patient fell, resulting in a sheared olecranon fracture. He underwent a closed reduction and casting. As the displacement slightly increased within a week, we followed him without secondary reduction to expect remodeling. No remodeling occurred; corrective osteotomy was performed one-year post-injury for a marked cubitus varus deformity. At 2.5 years after corrective osteotomy, little difference existed in the carrying angle (CA) and varus angulation (VA) of the proximal ulna than that of the contralateral side, without pain or limited range of motion. The acceptable displacement range for pediatric forearm fractures is <1 cm shortening and 15° angular deformation in patients under 10 years old, and 10° angular deformation in older children. Here, the deformity of the ulna in the coronal plane did not remodel. Proximal forearm deformity can be accurately evaluated in flexion contracture elbows by measuring VA. Ulnar osteotomies are commonly performed on Monteggia fractures to reduce the radial head, and the osteotomy site is at the center of the deformity of the diaphysis. Corrective osteotomy for cubitus varus deformity after supracondylar humerus fracture improves function and cosmetic appearance, with good clinical results. In addition, it could prevent cubitus varus deformity from causing posterolateral rotatory instability. The coronal-plane deformity of the proximal ulnar was not expected to remodel. We recommended early accurate reduction and consideration of additional internal fixation for preventing re-displacement. Corrective osteotomy for cubitus varus deformity of the proximal ulna was an effective treatment.
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Affiliation(s)
- Kazuya Yamada
- Department of Orthopaedic Surgery, Mito Saiseikai General Hospital, Ibaraki, Japan
| | - Yuta Tsukagoshi
- Department of Orthopaedic Surgery, Ibaraki Children's Hospital, Ibaraki, Japan
| | - Toru Hoshi
- Department of Orthopaedic Surgery, Mito Saiseikai General Hospital, Ibaraki, Japan
| | - Masazumi Suzuki
- Department of Orthopaedic Surgery, Mito Saiseikai General Hospital, Ibaraki, Japan
| | - Yasuaki Hosono
- Department of Orthopaedic Surgery, Mito Saiseikai General Hospital, Ibaraki, Japan
| | - Hayato Shimada
- Department of Orthopaedic Surgery, Mito Saiseikai General Hospital, Ibaraki, Japan
| | - Shinsen Nomura
- Department of Orthopaedic Surgery, Mito Saiseikai General Hospital, Ibaraki, Japan
| | - Yoshiyasu Ikezawa
- Department of Orthopaedic Surgery, Mito Saiseikai General Hospital, Ibaraki, Japan
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45
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Yang T, Li G, Li X, Wei B, Su H, Liu W, Guo S, Yang N, Xu T, Duan C. VEGF combined with DAPT promotes tissue regeneration and remodeling in vascular grafts. Regen Biomater 2023; 10:rbad088. [PMID: 37899954 PMCID: PMC10603585 DOI: 10.1093/rb/rbad088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 08/28/2023] [Accepted: 09/14/2023] [Indexed: 10/31/2023] Open
Abstract
Previous research on tissue-engineered blood vessels (TEBVs) has mainly focused on the intima or adventitia unilaterally, neglecting the equal importance of both layers. Meanwhile, the efficacy of grafts modified with vascular endothelial growth factor (VEGF) merely has been limited. Here, we developed a small-diameter graft that can gradually release VEGF and γ secretase inhibitor IX (DAPT) to enhance tissue regeneration and remodeling in both the intima and adventitia. In vitro, experiments revealed that the combination of VEGF and DAPT had superior pro-proliferation and pro-migration effects on endothelial cells. In vivo, the sustained release of VEGF and DAPT from the grafts resulted in improved regeneration and remodeling. Specifically, in the intima, faster endothelialization and regeneration of smooth muscle cells led to higher patency rates and better remodeling. In the adventitia, a higher density of neovascularization, M2 macrophages and fibroblasts promoted cellular ingrowth and replacement of the implant with autologous neo-tissue. Furthermore, western blot analysis confirmed that the regenerated ECs were functional and the effect of DAPT was associated with increased expression of vascular endothelial growth factor receptor 2. Our study demonstrated that the sustained release of VEGF and DAPT from the graft can effectively promote tissue regeneration and remodeling in both the intima and adventitia. This development has the potential to significantly accelerate the clinical application of small-diameter TEBVs.
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Affiliation(s)
- Tao Yang
- Neurosurgery Center, Department of Cerebrovascular Surgery, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Guangxu Li
- Department of Neurosurgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, 510630, China
| | - Xifeng Li
- Neurosurgery Center, Department of Cerebrovascular Surgery, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Boyang Wei
- Neurosurgery Center, Department of Cerebrovascular Surgery, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Hengxian Su
- Neurosurgery Center, Department of Cerebrovascular Surgery, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Wenchao Liu
- Neurosurgery Center, Department of Cerebrovascular Surgery, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Shenquan Guo
- Neurosurgery Center, Department of Cerebrovascular Surgery, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Nan Yang
- Neurosurgery Center, Department of Cerebrovascular Surgery, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Tao Xu
- Department of Bio-intelligent Manufacturing and Living Matter Bioprinting Center, Research Institute of Tsinghua University in Shenzhen, Tsinghua University, Shenzhen 518057, People’s Republic of China
- Department of Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, People’s Republic of China
| | - Chuanzhi Duan
- Neurosurgery Center, Department of Cerebrovascular Surgery, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
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Babadag S, Çelebi-Saltik B. A cellular regulator of the niche: telocyte. Tissue Barriers 2023; 11:2131955. [PMID: 36218299 PMCID: PMC10606812 DOI: 10.1080/21688370.2022.2131955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 09/24/2022] [Accepted: 09/28/2022] [Indexed: 10/17/2022] Open
Abstract
Interstitial cells are present in the environment of stem cells in order to increase stem cell proliferation and differentiation and they are important to increase the efficiency of their transplantation. Telocytes (TCs) play an important role both in the preservation of tissue organ integrity and in the pathophysiology of many diseases, especially cancer. They make homo- or heterocellular contacts to form the structure of 3D network through their telopodes and deliver signaling molecules via a juxtacrine and/or paracrine association by budding shed vesicles into the vascular, nervous and endocrine systems. During this interaction, along with organelles, mRNA, microRNA, long non-coding RNA, and genomic DNA are transferred. This review article not only specifies the properties of TCs and their roles in the tissue organ microenvironment but also gives information about the factors that play a role in the transport of epigenetic information by TCs.
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Affiliation(s)
- Sena Babadag
- Department of Stem Cell Sciences, Hacettepe University Graduate School of Health Sciences, Sihhiye, Turkey
- Center for Stem Cell Research and Development, Hacettepe University, Sihhiye, Turkey
| | - Betül Çelebi-Saltik
- Department of Stem Cell Sciences, Hacettepe University Graduate School of Health Sciences, Sihhiye, Turkey
- Center for Stem Cell Research and Development, Hacettepe University, Sihhiye, Turkey
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Wu H, Tang B, Zhang H, Ran K, Chen Y, Luo H. Endovascular treatment of systematic isolated mesenteric artery dissection with a patent false lumen: Bare stents alone versus stent-assisted coiling. Sci Prog 2023; 106:368504231214959. [PMID: 38116780 PMCID: PMC10664444 DOI: 10.1177/00368504231214959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
OBJECTIVES Bare stent treatment and bare stent-assisted coiling treatment have not been directly compared in symptomatic isolated superior mesenteric artery dissection with a patent false lumen. Thus, we compared the early and mid-term outcomes of bare stent treatment and bare stent-assisted coiling treatment to determine the most effective remedy for patients with this condition. METHODS Consecutive patients diagnosed with systematic isolated superior mesenteric artery dissection with a patent false lumen admitted to the study hospital between January 2016 and December 2021 were enrolled in this retrospective study. Their demographic data, clinical findings, treatment options, early outcomes, and follow-up results were analyzed. RESULTS A total of 85 patients (83 men) were included. 34.1% (n = 29) adopted bare stent treatment and 65.9% (n = 56) underwent bare stent-assisted coiling treatment. The symptoms were relieved in all patients (100%) with bare stent treatment and bare stent-assisted coiling treatment. There was no significant difference in the length of hospital stay between the two endovascular treatments (p = 0.354). The cumulative complete remodeling rate was 100% in bare stent-assisted coiling treatment vs. 70.4% in bare stent treatment (p < 0.0001). The prevalence of adverse events for abdominal pain recurrence (none in BST or bare stent-assisted coiling treatment), and formation of the aneurysm (two in bare stent treatment, and none in bare stent-assisted coiling treatment) showed no significant difference at follow-up. CONCLUSION Both bare stent treatment and bare stent-assisted coiling treatment for symptomatic isolated superior mesenteric artery dissection with a patent false lumen have the same satisfying early outcome. In the midterm follow-up, bare stent-assisted coiling treatment has the higher cumulative complete remodeling rate which could be prioritized to treat this condition.
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Affiliation(s)
- Huan Wu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Bo Tang
- Department of Vascular Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Haolong Zhang
- Department of Vascular Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Kun Ran
- Department of Vascular Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yikuan Chen
- Department of Vascular Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hailong Luo
- Department of Vascular Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Heck A, Godang K, Lekva T, Markussen KN, De Vincentis S, Ueland T, Bollerslev J. Endocortical Trabecularization in Acromegaly: The Cause for the Paradoxically Increased Vertebral Fracture Risk? JBMR Plus 2023; 7:e10787. [PMID: 37808394 PMCID: PMC10556260 DOI: 10.1002/jbm4.10787] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 04/26/2023] [Accepted: 06/02/2023] [Indexed: 10/10/2023] Open
Abstract
Growth hormone (GH) is nonphysiologically increased in acromegaly, stimulating target tissues directly and indirectly via insulin-like growth factor type 1 (IGF-1). Despite GH having anabolic effects on bone growth and renewal, the risk of vertebral fractures is paradoxically increased in acromegaly. We hypothesized that bone tissue compartments were differentially affected by hormonal alterations in active and controlled acromegaly. We aimed to study the effect of sex and gonadal status on long-term outcome of bone mass and structure to understand the biomechanical competence of bone. We followed 62 patients with newly diagnosed acromegaly longitudinally (median 4.8 years after pituitary surgery) to investigate changes assessed by dual X-ray absorptiometry (DXA), trabecular bone score (TBS), and hip structure analysis (HSA). At diagnosis, patients had increased bone mineral density (BMD) in most compartments compared with normative data (Z-scores). Conversely, TBS Z-score was decreased (Z = -0.64 (SD 1.73), p = 0.028). Following treatment of acromegaly, BMD increased further in compartments containing predominantly trabecular bone, such as the lumbar spine, in eugonadal and male subjects, while compartments with predominantly cortical bone, such as the hip and femoral neck, were unchanged. Total body measurements showed further increase in BMD independent of sex and gonadal status. TBS did not change. HSA revealed a significant decrease in cortical thickness in both sexes independent of gonadal status, whereas the overall size of bone (hip axis length and neck width) did not change over time. In conclusion, patients with acromegaly had increased bone mass and dimensions by DXA. Following normalization of disease activity, BMD increased mainly in compartments rich in trabecular bone, reflecting a closure of the remodeling space. However, HSA revealed a significant decrease in cortical thickness, implying endocortical trabecularization, potentially explaining the increased risk for incident vertebral fractures following treatment. © 2023 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Ansgar Heck
- Section of Specialized Endocrinology, Medical ClinicOslo University HospitalOsloNorway
| | - Kristin Godang
- Section of Specialized Endocrinology, Medical ClinicOslo University HospitalOsloNorway
| | - Tove Lekva
- Research Institute of Internal MedicineOslo University HospitalOsloNorway
| | - Kjersti Norman Markussen
- Section of Specialized Endocrinology, Medical ClinicOslo University HospitalOsloNorway
- Faculty of MedicineUniversity of OsloOsloNorway
| | - Sara De Vincentis
- Section of Specialized Endocrinology, Medical ClinicOslo University HospitalOsloNorway
- Unit of Endocrinology, Department of Biomedical, Metabolic and Neural SciencesUniversity of Modena and Reggio EmiliaModenaItaly
| | - Thor Ueland
- Research Institute of Internal MedicineOslo University HospitalOsloNorway
- Faculty of MedicineUniversity of OsloOsloNorway
| | - Jens Bollerslev
- Section of Specialized Endocrinology, Medical ClinicOslo University HospitalOsloNorway
- Faculty of MedicineUniversity of OsloOsloNorway
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Kuprytė M, Lesauskaitė V, Keturakis V, Bunevičienė V, Utkienė L, Jusienė L, Pangonytė D. Remodeling of Cardiomyocytes: Study of Morphological Cellular Changes Preceding Symptomatic Ischemic Heart Failure. Int J Mol Sci 2023; 24:14557. [PMID: 37834000 PMCID: PMC10572236 DOI: 10.3390/ijms241914557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/19/2023] [Accepted: 09/22/2023] [Indexed: 10/15/2023] Open
Abstract
Although major pathogenesis mechanisms of heart failure (HF) are well established, the significance of early (mal)adaptive structural changes of cardiomyocytes preceding symptomatic ischemic HF remains ambiguous. The aim of this study is to present the morphological characterization of changes in cardiomyocytes and their reorganization of intermediate filaments during remodeling preceding symptomatic ischemic HF in an adult human heart. A total of 84 myocardial tissue samples from middle-left heart ventricular segments were analyzed histomorphometrically and immunohistochemically, observing the cardiomyocyte's size, shape, and desmin expression changes in the remodeling process: Stage A of HF, Stage B of HF, and Stages C/D of HF groups (ACC/AHA classification). Values p < 0.05 were considered significant. The cellular length, diameter, and volume of Stage A of HF increased predominantly by the diameter vs. the control group (p < 0.001) and continued to increase in Stage B of HF in a similar pattern (p < 0.001), increasing even more in the C/D Stages of HF predominantly by length (p < 0.001). Desmin expression was increased in Stage A of HF vs. the control group (p < 0.001), whereas it was similar in Stages A and B of HF (p > 0.05), and most intense in Stages C/D of HF (p < 0.001). Significant morphological changes of cardiomyocytes and their cytoskeletal reorganization were observed during the earliest remodeling events preceding symptomatic ischemic HF.
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Affiliation(s)
- Milda Kuprytė
- Laboratory of Cardiac Pathology, Institute of Cardiology, Lithuanian University of Health Sciences, LT-44307 Kaunas, Lithuania; (M.K.); (V.K.)
| | - Vaiva Lesauskaitė
- Laboratory of Molecular Cardiology, Institute of Cardiology, Lithuanian University of Health Sciences, LT-44307 Kaunas, Lithuania;
| | - Vytenis Keturakis
- Laboratory of Cardiac Pathology, Institute of Cardiology, Lithuanian University of Health Sciences, LT-44307 Kaunas, Lithuania; (M.K.); (V.K.)
| | - Vitalija Bunevičienė
- Laboratory of Cardiac Pathology, Institute of Cardiology, Lithuanian University of Health Sciences, LT-44307 Kaunas, Lithuania; (M.K.); (V.K.)
| | - Lina Utkienė
- Laboratory of Cardiac Pathology, Institute of Cardiology, Lithuanian University of Health Sciences, LT-44307 Kaunas, Lithuania; (M.K.); (V.K.)
| | - Lina Jusienė
- Laboratory of Cardiac Pathology, Institute of Cardiology, Lithuanian University of Health Sciences, LT-44307 Kaunas, Lithuania; (M.K.); (V.K.)
| | - Dalia Pangonytė
- Laboratory of Cardiac Pathology, Institute of Cardiology, Lithuanian University of Health Sciences, LT-44307 Kaunas, Lithuania; (M.K.); (V.K.)
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50
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Saipudinova KM, Uskach TM, Shariya MА, Ustyuzhanin DV, Dobrovolskaya SV, Tereshchenko SN. [Effect of dapagliflozin on the dynamics of magnetic resonance imaging in patients with heart failure and atrial fibrillation]. TERAPEVT ARKH 2023; 95:776-781. [PMID: 38158922 DOI: 10.26442/00403660.2023.09.202368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Indexed: 01/03/2024]
Abstract
AIM To determine the effect of dapagliflozin therapy on myocardial remodeling and fibrosis according to magnetic resonance imaging (MRI) with contrast in patients with chronic heart failure (CHF) and atrial fibrillation (AF). MATERIALS AND METHODS In the group of 22 patients with a combination of CHF and AF we analyzed the dynamics of remodeling parameters and assessed myocardial fibrosis during 6-month therapy with dapagliflozin according to cardiac MRI with contrast. RESULTS After 6 months of dapagliflozin therapy there was a statistically significant increase in LVEF (27 [23-32]-32 [26.5-36.5] p-0.04) and a tendency to decrease volume and linear dimensions of LV, LP. There was no progression of myocardial fibrosis according to the results of cardiac MRI with contrast in patients with HFrFV and AF. CONCLUSIONS Dapagliflozin therapy in patients with HFrEF and AF led to favorable myocardial remodeling changes.
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Affiliation(s)
| | - T M Uskach
- Chazov National Medical Research Center of Cardiology
- Russian Medical Academy of Continuous Professional Education
| | - M А Shariya
- Chazov National Medical Research Center of Cardiology
- Sechenov First Moscow State Medical University (Sechenov University)
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