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Wu Z, Yu W, Luo J, Shen G, Cui Z, Ni W, Wang H. Comprehensive transcriptomic analysis unveils macrophage-associated genes for establishing an abdominal aortic aneurysm diagnostic model and molecular therapeutic framework. Eur J Med Res 2024; 29:323. [PMID: 38867262 PMCID: PMC11167832 DOI: 10.1186/s40001-024-01900-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 05/22/2024] [Indexed: 06/14/2024] Open
Abstract
BACKGROUND Abdominal aortic aneurysm (AAA) is a highly lethal cardiovascular disease. The aim of this research is to identify new biomarkers and therapeutic targets for the treatment of such deadly diseases. METHODS Single-sample gene set enrichment analysis (ssGSEA) and CIBERSORT algorithms were used to identify distinct immune cell infiltration types between AAA and normal abdominal aortas. Single-cell RNA sequencing data were used to analyse the hallmark genes of AAA-associated macrophage cell subsets. Six macrophage-related hub genes were identified through weighted gene co-expression network analysis (WGCNA) and validated for expression in clinical samples and AAA mouse models. We screened potential therapeutic drugs for AAA through online Connectivity Map databases (CMap). A network-based approach was used to explore the relationships between the candidate genes and transcription factors (TFs), lncRNAs, and miRNAs. Additionally, we also identified hub genes that can effectively identify AAA and atherosclerosis (AS) through a variety of machine learning algorithms. RESULTS We obtained six macrophage hub genes (IL-1B, CXCL1, SOCS3, SLC2A3, G0S2, and CCL3) that can effectively diagnose abdominal aortic aneurysm. The ROC curves and decision curve analysis (DCA) were combined to further confirm the good diagnostic efficacy of the hub genes. Further analysis revealed that the expression of the six hub genes mentioned above was significantly increased in AAA patients and mice. We also constructed TF regulatory networks and competing endogenous RNA networks (ceRNA) to reveal potential mechanisms of disease occurrence. We also obtained two key genes (ZNF652 and UBR5) through a variety of machine learning algorithms, which can effectively distinguish abdominal aortic aneurysm and atherosclerosis. CONCLUSION Our findings depict the molecular pharmaceutical network in AAA, providing new ideas for effective diagnosis and treatment of diseases.
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Affiliation(s)
- Zhen Wu
- Department of Vascular and Interventional Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
| | - Weiming Yu
- Department of Vascular and Interventional Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
- General Surgery, Thyroid Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510000, Guangdong, China
| | - Jie Luo
- Department of Vascular and Interventional Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
- Department of Clinical Laboratory, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Guanghui Shen
- Department of Vascular and Interventional Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
| | - Zhongqi Cui
- Department of Clinical Laboratory, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Wenxuan Ni
- Department of Clinical Laboratory, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China.
| | - Haiyang Wang
- Department of Vascular and Interventional Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China.
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Li GJ, Yang QH, Yang GK, Yang G, Hou Y, Hou LJ, Li ZX, Du LJ. MiR-125b and SATB1-AS1 might be shear stress-mediated therapeutic targets. Gene 2023; 857:147181. [PMID: 36623676 DOI: 10.1016/j.gene.2023.147181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 12/20/2022] [Accepted: 01/04/2023] [Indexed: 01/09/2023]
Abstract
The aim of the study was to explore the potential molecular mechanism associated with shear stress on abdominal aortic aneurysm (AAA) progression. This study performed RNA sequencing on AAA patients (SQ), AAA patients after endovascular aneurysm repair (EVAR, SH), and normal controls (NC). Furthermore, we identified the differentially expressed microRNAs (miRNAs), long noncoding RNAs (lncRNAs), and circular RNA (cirRNAs) and constructed competing endogenous RNA (ceRNA) networks. Finally, 164 differentially expressed miRNAs, 179 co-differentially expressed lncRNAs, and 440 co-differentially expressed circRNAs among the three groups were obtained. The differentially expressed miRNAs mainly enriched in 325 Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways. Target genes associated with co-differentially expressed genes among the group of SH, SQ, and NC mainly enriched in 66 KEGG pathways. LncRNA-miRNA-mRNA interactions, including 15 lncRNAs, 63 miRNAs and 57 mRNAs, was constructed. CircRNA-miRNA-mRNA ceRNA network included 79 circRNAs, 21 miRNAs, and 49 mRNAs. Among them, KLRC2 and CSTF1, targeted by miR-125b, participated in cell-mediated immunity regulation. MiR-320-related circRNAs and SATB1-AS1 serving as the sponge of miRNAs, such as has-circ-0129245, has-circ-0138746, and has-circ-0139786, were hub genes in ceRNA network. In conclusion, AAA patients might be benefit from EVAR based on various pathways and some molecules, such as miR-125b and SATB1-AS1, related with shear stress.
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Affiliation(s)
- Guo-Jian Li
- Department of Vascular Surgery, Affiliated Hospital of Yunnan University, Kunming 650021, Yunnan, China
| | - Qiong-Hui Yang
- Department of Pharmaceutical, The Third People's Hospital of Yunnan Province, Kunming 650011, Yunnan, China
| | - Guo-Kai Yang
- Department of Vascular Surgery, Affiliated Hospital of Yunnan University, Kunming 650021, Yunnan, China
| | - Guang Yang
- Department of Radiology, the First People's Hospital of Anning, China
| | - Yi Hou
- Department of Vascular Surgery, Affiliated Hospital of Yunnan University, Kunming 650021, Yunnan, China
| | - Li-Juan Hou
- Department of Vascular Surgery, Affiliated Hospital of Yunnan University, Kunming 650021, Yunnan, China
| | - Zhao-Xiang Li
- Department of Vascular Surgery, Affiliated Hospital of Yunnan University, Kunming 650021, Yunnan, China
| | - Ling-Juan Du
- Department of Vascular Surgery, Affiliated Hospital of Yunnan University, Kunming 650021, Yunnan, China.
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Jones M, Faris P, Moore R. Mortality and risk factors for ruptured abdominal aortic Aneurysm after Repair Endovascular (rARE). J Vasc Surg Cases Innov Tech 2023. [DOI: 10.1016/j.jvscit.2023.101165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023] Open
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4
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Stoll S, Sowah SA, Fink MA, Nonnenmacher T, Graf ME, Johnson T, Schlett CL, von Stackelberg O, Kirsten R, Bamberg F, Keller J, Ulrich CM, Kaaks R, Kauczor HU, Rengier F, Kühn T, Nattenmüller J. Changes in aortic diameter induced by weight loss: The HELENA trial- whole-body MR imaging in a dietary intervention trial. Front Physiol 2022; 13:976949. [PMID: 36203934 PMCID: PMC9531129 DOI: 10.3389/fphys.2022.976949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 09/02/2022] [Indexed: 11/17/2022] Open
Abstract
Obesity-related metabolic disorders such as hypertension, hyperlipidemia and chronic inflammation have been associated with aortic dilatation and resulting in aortic aneurysms in many cases. Whether weight loss may reduce the risk of aortic dilatation is not clear. In this study, the diameter of the descending thoracic aorta, infrarenal abdominal aorta and aortic bifurcation of 144 overweight or obese non-smoking adults were measured by MR-imaging, at baseline, and 12 and 50 weeks after weight loss by calorie restriction. Changes in aortic diameter, anthropometric measures and body composition and metabolic markers were evaluated using linear mixed models. The association of the aortic diameters with the aforementioned clinical parameters was analyzed using Spearman`s correlation. Weight loss was associated with a reduction in the thoracic and abdominal aortic diameters 12 weeks after weight loss (predicted relative differences for Quartile 4: 2.5% ± 0.5 and -2.2% ± 0.8, p < 0.031; respectively). Furthermore, there was a nominal reduction in aortic diameters during the 50-weeks follow-up period. Aortic diameters were positively associated with weight, visceral adipose tissue, glucose, HbA1c and with both systolic and diastolic blood pressure. Weight loss induced by calorie restriction may reduce aortic diameters. Future studies are needed to investigate, whether the reduction of aortic diameters via calorie restriction may help to prevent aortic aneurysms.
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Affiliation(s)
- Sibylle Stoll
- Heidelberg University Hospital, Diagnostic and Interventional Radiology, Heidelberg, Germany
| | - Solomon A. Sowah
- German Cancer Research Center (DKFZ), Division of Cancer Epidemiology, Heidelberg, Germany
| | - Matthias A. Fink
- Heidelberg University Hospital, Diagnostic and Interventional Radiology, Heidelberg, Germany
| | - Tobias Nonnenmacher
- Heidelberg University Hospital, Diagnostic and Interventional Radiology, Heidelberg, Germany
| | - Mirja E. Graf
- German Cancer Research Center (DKFZ), Division of Cancer Epidemiology, Heidelberg, Germany
| | - Theron Johnson
- German Cancer Research Center (DKFZ), Division of Cancer Epidemiology, Heidelberg, Germany
| | - Christopher L. Schlett
- Department of Diagnostic and Interventional Radiology, Medical Center - Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | | | - Romy Kirsten
- National Center for Tumor Diseases (NCT), Liquid Biobank, Heidelberg, Germany
- Division of Preventive Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Fabian Bamberg
- Department of Diagnostic and Interventional Radiology, Medical Center - Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | | | - Cornelia M. Ulrich
- Huntsman Cancer Institute and Department of Population Health Sciences, University of Utah, Salt Lake City, UT, United States
| | - Rudolf Kaaks
- German Cancer Research Center (DKFZ), Division of Cancer Epidemiology, Heidelberg, Germany
| | - Hans-Ulrich Kauczor
- Heidelberg University Hospital, Diagnostic and Interventional Radiology, Heidelberg, Germany
| | - Fabian Rengier
- Heidelberg University Hospital, Diagnostic and Interventional Radiology, Heidelberg, Germany
| | - Tilman Kühn
- German Cancer Research Center (DKFZ), Division of Cancer Epidemiology, Heidelberg, Germany
| | - Johanna Nattenmüller
- Heidelberg University Hospital, Diagnostic and Interventional Radiology, Heidelberg, Germany
- Department of Diagnostic and Interventional Radiology, Medical Center - Faculty of Medicine, University of Freiburg, Freiburg, Germany
- *Correspondence: Johanna Nattenmüller,
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Soluble ST2 as a Potential Biomarker for Abdominal Aortic Aneurysms-A Single-Center Retrospective Cohort Study. Int J Mol Sci 2022; 23:ijms23179598. [PMID: 36076997 PMCID: PMC9455465 DOI: 10.3390/ijms23179598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 08/16/2022] [Accepted: 08/22/2022] [Indexed: 11/17/2022] Open
Abstract
The maximal aortic diameter is the only clinically applied predictor of abdominal aortic aneurysm (AAA) progression and indicator for surgical repair. Circulating biomarkers resulting from AAA pathogenesis are attractive candidates for the diagnosis and prognosis of aneurysmal disease. Due to the reported role of interleukin 33 in AAA development, we investigated the corresponding circulating receptor molecules of soluble suppression of tumorigenesis 2 (sST2) in AAA patients regarding their marker potential in diagnosis and prognosis. We conducted a single-center retrospective cohort study in a diagnostic setting, measuring the circulating serum sST2 protein levels of 47 AAA patients under surveillance, matched with 25 peripheral artery disease (PAD) patients and 25 healthy controls. In a prognostic setting, we analyzed the longitudinal monitoring data of 50 monitored AAA patients. Slow versus fast AAA progression was defined as a <2 or ≥2 mm increase in AAA diameter over 6 months and a <4 or ≥4 mm increase over 12 months. Additionally, the association of circulating serum sST2 and AAA growth was investigated using a specifically tailored log-linear mixed model. Serum sST2 concentrations were significantly increased in AAA patients compared with healthy individuals: the median of AAA patient cohort was 112.72 ng/mL (p = 0.025) and that of AAA patient cohort 2 was 14.32 ng/mL (p = 0.039) versus healthy controls (8.82 ng/mL). Likewise, PAD patients showed significantly elevated sST2 protein levels compared with healthy controls (the median was 12.10 ng/mL; p = 0.048) but similar concentrations to AAA patients. Additionally, sST2 protein levels were found to be unsuited to identifying fast AAA progression over short-term periods of 6 or 12 months, which was confirmed by a log-linear mixed model. In conclusion, the significantly elevated protein levels of sST2 detected in patients with vascular disease may be useful in the early diagnosis of AAA but cannot distinguish between AAA and PAD or predict AAA progression.
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Xiong T, Lv XS, Wu GJ, Guo YX, Liu C, Hou FX, Wang JK, Fu YF, Liu FQ. Single-Cell Sequencing Analysis and Multiple Machine Learning Methods Identified G0S2 and HPSE as Novel Biomarkers for Abdominal Aortic Aneurysm. Front Immunol 2022; 13:907309. [PMID: 35769488 PMCID: PMC9234288 DOI: 10.3389/fimmu.2022.907309] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 05/06/2022] [Indexed: 11/20/2022] Open
Abstract
Identifying biomarkers for abdominal aortic aneurysms (AAA) is key to understanding their pathogenesis, developing novel targeted therapeutics, and possibly improving patients outcomes and risk of rupture. Here, we identified AAA biomarkers from public databases using single-cell RNA-sequencing, weighted co-expression network (WGCNA), and differential expression analyses. Additionally, we used the multiple machine learning methods to identify biomarkers that differentiated large AAA from small AAA. Biomarkers were validated using GEO datasets. CIBERSORT was used to assess immune cell infiltration into AAA tissues and investigate the relationship between biomarkers and infiltrating immune cells. Therefore, 288 differentially expressed genes (DEGs) were screened for AAA and normal samples. The identified DEGs were mostly related to inflammatory responses, lipids, and atherosclerosis. For the large and small AAA samples, 17 DEGs, mostly related to necroptosis, were screened. As biomarkers for AAA, G0/G1 switch 2 (G0S2) (Area under the curve [AUC] = 0.861, 0.875, and 0.911, in GSE57691, GSE47472, and GSE7284, respectively) and for large AAA, heparinase (HPSE) (AUC = 0.669 and 0.754, in GSE57691 and GSE98278, respectively) were identified and further verified by qRT-PCR. Immune cell infiltration analysis revealed that the AAA process may be mediated by T follicular helper (Tfh) cells and the large AAA process may also be mediated by Tfh cells, M1, and M2 macrophages. Additionally, G0S2 expression was associated with neutrophils, activated and resting mast cells, M0 and M1 macrophages, regulatory T cells (Tregs), resting dendritic cells, and resting CD4 memory T cells. Moreover, HPSE expression was associated with M0 and M1 macrophages, activated and resting mast cells, Tregs, and resting CD4 memory T cells. Additional, G0S2 may be an effective diagnostic biomarker for AAA, whereas HPSE may be used to confer risk of rupture in large AAAs. Immune cells play a role in the onset and progression of AAA, which may improve its diagnosis and treatment.
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Affiliation(s)
- Tao Xiong
- Department of Cardiovascular, Shaanxi Provincial People’s Hospital, Xi’an, China
- Department of Cardiovascular Surgery, Yan'an Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xiao-Shuo Lv
- Department of Cardiovascular Surgery, China-Japan Friendship Hospital, Beijing, China
| | - Gu-Jie Wu
- Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Yao-Xing Guo
- Department of Pathology, College of Basic Medical Sciences China Medical University, Shenyang, China
| | - Chang Liu
- Department of Cardiovascular Surgery, Yan'an Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Fang-Xia Hou
- Department of Cardiovascular, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Jun-Kui Wang
- Department of Cardiovascular, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Yi-Fan Fu
- School of Biological Science and Medical Engineering, Beihang University, Beijing, China
| | - Fu-Qiang Liu
- Department of Cardiovascular, Shaanxi Provincial People’s Hospital, Xi’an, China
- *Correspondence: Fu-Qiang Liu,
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7
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Clifford K, Majumder A, Hill B, Young-Gough A, Jones GT, Krysa J. The Impact of Suprarenal Diameter on Outcomes Following Endovascular Aneurysm Repair: A Retrospective Cohort Study. Vasc Endovascular Surg 2022; 56:15385744221108052. [PMID: 35680567 DOI: 10.1177/15385744221108052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVES To determine the association between suprarenal aortic diameters and complications that may be attributed to a dilating phenotype following endovascular abdominal aortic aneurysm repair. DESIGN This study is a retrospective review. METHODS We measured the abdominal aortas of 147 consecutive patients with a mean age of 78.5 (range 60-93) years, who had a mean Endovascular aneurysm repair (EVAR) follow-up of 3 years (6 months to 8 years) at a public Hospital. Aortic calibres measured 5 mm above the highest renal artery were recorded, patients were categorised according to suprarenal diameter; Group A: greater than 25 mm, Group B: less than or equal to 25 mm. Stent migration, aneurysmal sac growth, presence of an endoleak and its type, occlusion events, rupture, interventions and mortality, as well as clinical history and demographic data were compared between groups. RESULTS There was a significantly higher occurrence of stent migration (11% v 0%; P = .01) in patients with larger suprarenal aortas (Group A). The occurrence of any endoleak did not differ between the groups, however, significantly more complications resulting in secondary intervention, excluding occlusions, were noted in Group A (34% vs 17%, P = .04). CONCLUSIONS The results from this study suggest that patients with above-average suprarenal diameters (categorised as dilators) may have a higher occurrence of specific complications following EVAR. A more detailed study to establish the association of suprarenal calibre with types of complications following EVAR is warranted.
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Affiliation(s)
- Kari Clifford
- Department of Surgery, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - Arunesh Majumder
- Department of Surgery, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - Brigid Hill
- Department of Surgery, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - Anastasia Young-Gough
- Department of Surgery, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - Gregory T Jones
- Department of Surgery, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - Jolanta Krysa
- Department of Surgery, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
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8
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Pathology of sudden death, cardiac arrhythmias, and conduction system. Cardiovasc Pathol 2022. [DOI: 10.1016/b978-0-12-822224-9.00007-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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9
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Ballegaard CR, Pham MHC, Sigvardsen PE, Kühl JT, Sørgaard M, Taudorf M, Fuchs A, Nordestgaard BG, Køber LV, Kofoed KF. Aortic enlargement and coronary artery calcification in a general population cohort. Eur Heart J Cardiovasc Imaging 2021; 23:855-862. [PMID: 34166489 DOI: 10.1093/ehjci/jeab122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 06/03/2021] [Indexed: 01/16/2023] Open
Abstract
AIMS The role of atherosclerosis in the pathogenesis of aortic enlargement is uncertain. We aimed to evaluate the relationship between the diameters of the ascending, descending and abdominal aorta, and coronary artery calcification. METHODS AND RESULTS Individuals in the Copenhagen General Population Study underwent thoracic and abdominal computed tomography. Maximal aortic diameters were measured in each aortic segment and coronary artery calcium scores (CACS) were calculated. Participants were stratified into five predefined groups according to CACSs and compared to aortic dimensions. The relation between aortic diameter and CACS was adjusted for risk factors for aortic dilatation in a multivariable model. A total of 2678 eligible individuals were included. In all segments of the aorta, aortic diameter was associated to CACSs, with mean increases in aortic diameters ranging from 0.7 to 3.5 mm in individuals with calcified coronary arteries compared to non-calcified subjects (P-value < 0.001). After correction for risk factors, individuals with CACS above 400 had larger ascending, descending and abdominal aortic diameter than the non-calcified reference group (P-value < 0.01). CONCLUSION Enlarged thoracic and abdominal aortic vascular segments are associated with co-existing coronary artery calcification in the general population.
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Affiliation(s)
- Christian R Ballegaard
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100Copenhagen, Denmark
| | - Michael H C Pham
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100Copenhagen, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark
| | - Per E Sigvardsen
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100Copenhagen, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark
| | - J Tobias Kühl
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100Copenhagen, Denmark
| | - Mathias Sørgaard
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100Copenhagen, Denmark
| | - Mikkel Taudorf
- Department of Radiology, The Diagnostic Center, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Andreas Fuchs
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100Copenhagen, Denmark
| | - Børge G Nordestgaard
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark.,Department of Clinical Biochemistry and the Copenhagen General Population Study, Herlev Gentofte Hospital, Copenhagen University Hospital, Borgmester Ib Juuls Vej 1, 2730 Herlev, Denmark
| | - Lars V Køber
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100Copenhagen, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark
| | - Klaus F Kofoed
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100Copenhagen, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark.,Department of Radiology, The Diagnostic Center, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100 Copenhagen, Denmark
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10
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Arnold F, Muzzio N, Patnaik SS, Finol EA, Romero G. Pentagalloyl Glucose-Laden Poly(lactide- co-glycolide) Nanoparticles for the Biomechanical Extracellular Matrix Stabilization of an In Vitro Abdominal Aortic Aneurysm Model. ACS APPLIED MATERIALS & INTERFACES 2021; 13:25771-25782. [PMID: 34030437 DOI: 10.1021/acsami.1c05344] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The suppression of abdominal aortic aneurysm (AAA) growth by nonsurgical therapy is currently not an option, and AAA is considered an irreversible destructive disease. The formation and development of AAA is associated with the progressive deterioration of the aortic wall. Infiltrated macrophages and resident vascular smooth muscle cells oversecrete matrix metalloproteinases (MMPs), which cause the loss of crucial aortic extracellular matrix (ECM) components, thus weakening the aortic wall. Stabilization of the aortic ECM could enable the development of novel therapeutic options for preventing and reducing AAA progression. In the present work, we studied the biochemical and biomechanical interactions of pentagalloyl glucose (PGG) on mouse C2C12 myoblast cells. PGG is a naturally occurring ECM-stabilizing polyphenolic compound that has been studied in various applications, including vascular health, with promising results. With its known limitations of systemic administration, we also studied the administration of PGG when encapsulated within poly(lactide-co-glycolide) (PLGA) nanoparticles (NPs). Treatment with collagenase and elastase enzymes was used to mimic a pathway of degenerative effects seen in the pathogenesis of human AAA. PGG and PLGA(PGG) NPs were added to enzyme-treated cells in either a suppressive or preventative scenario. Biomolecular interactions were analyzed through cell viability, cell adhesion, reactive oxygen species (ROS) production, and MMP-2 and MMP-9 secretion. Biomechanical properties were studied through atomic force microscopy and quartz crystal microbalance with dissipation. Our results suggest that PGG or PLGA(PGG) NPs caused minor to no cytotoxic effects on the C2C12 cells. Both PGG and PLGA(PGG) NPs showed reduction in ROS and MMP-2 secretion if administered after enzymatic ECM degradation. A quantitative comparison of Young's moduli showed a significant recovery in the elastic properties of the cells treated with PGG or PLGA(PGG) NPs after enzymatic ECM degradation. This work provides preliminary support for the use of a pharmacological therapy for AAA treatment.
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Affiliation(s)
- Frances Arnold
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Nicolas Muzzio
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Sourav S Patnaik
- Department of Mechanical Engineering, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Ender A Finol
- Department of Mechanical Engineering, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Gabriela Romero
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
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11
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Giannopoulos S, Kokkinidis DG, Avgerinos ED, Armstrong EJ. Association of Abdominal Aortic Aneurysm and Simple Renal Cysts: A Systematic Review and Meta-Analysis. Ann Vasc Surg 2021; 74:450-459. [PMID: 33556506 DOI: 10.1016/j.avsg.2021.01.075] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 12/31/2020] [Accepted: 01/06/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND-OBJECTIVE Prior studies have suggested a higher prevalence of simple renal cysts (SRC) among patients with aortic disease, including abdominal aortic aneurysms (AAA). Thus, the aim of this study was to systematically review all currently available literature and investigate whether patients with AAA are more likely to have SRC. METHODS This study was performed according to the PRISMA guidelines. A meta-analysis was conducted with the use of random effects modeling and the I-square was used to assess heterogeneity. Odds ratios (OR) and the corresponding 95% confidence intervals (CI) were synthesized to compare the prevalence of several patients' characteristics between AAA vs. no-AAA cases. RESULTS Eleven retrospective studies, 9 comparative (AAA vs. no-AAA groups) and 3 single-arm (AAA group), were included in this meta-analysis, enrolling patients (AAA: N = 2,297 vs. no-AAA: N = 35,873) who underwent computed tomography angiography as part of screening or preoperative evaluation for reasons other than AAA. The cumulative incidence of SRC among patients with AAA and no-AAA was 55% (95% CI: 49%-61%) and 32% (95% CI: 22%-42%) respectively, with a statistically higher odds of SRC among patients with AAA (OR: 3.02; 95% CI: 2.01-4.56; P< 0.001). The difference in SRC prevalence remained statistically significant in a sensitivity analysis, after excluding the study with the largest sample size (OR: 2.71; 95% CI: 1.91-3.84; P< 0.001). CONCLUSIONS Our meta-analysis demonstrated a 3-fold increased prevalence of SRC in patients with AAA compared to no-AAA cases, indicating that the pathogenic processes underlying SRC and AAA could share a common pathophysiologic mechanism. Thus, patients with SRC could be considered at high risk for AAA formation, potentially warranting an earlier AAA screening.
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Affiliation(s)
- Stefanos Giannopoulos
- Division of Cardiology, Rocky Mountain Regional VA Medical Center, University of Colorado, Denver, CO
| | | | - Efthymios D Avgerinos
- Division of Vascular Surgery, Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA
| | - Ehrin J Armstrong
- Division of Cardiology, Rocky Mountain Regional VA Medical Center, University of Colorado, Denver, CO.
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MiR-126-5p promotes contractile switching of aortic smooth muscle cells by targeting VEPH1 and alleviates Ang II-induced abdominal aortic aneurysm in mice. J Transl Med 2020; 100:1564-1574. [PMID: 32612287 DOI: 10.1038/s41374-020-0454-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 06/10/2020] [Accepted: 06/15/2020] [Indexed: 12/25/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) is a potential lethal disease that is defined by an irreversible dilatation (>50%) of the aorta. During AAA expansion, the aortic wall is often remodeled, which is featured by extracellular matrix (ECM) degeneration, medial and adventitial inflammation, depletion and phenotypic switching of vascular smooth muscle cells (SMCs). Recent studies have suggested microRNAs as vital regulators for vascular SMC function. Our earlier work demonstrated an anti-AAA role of miR-126-5p in ApoE-/- mice infused with angiotensin (Ang) II. The present study aimed to further elucidate its role in AAA pathogenesis with a focus on aortic SMC phenotypic switching. Ventricular zone expressed PH domain containing 1 (VEPH1) was identified as a novel negative regulator for vascular SMC differentiation by our group, and its expression was negatively correlated to miR-126-5p in mouse abdominal aortas based on the present microarray data. In vivo, in addition attenuating Ang II infusion-induced aortic dilation and elastin degradation, miR-126-5p agomirs also significantly reduced the expression of VEPH1. In vitro, to induce synthetic transition of human aortic smooth muscle cells (hAoSMCs), cells were stimulated with 1 μM Ang II for 24 h. Ectopic overexpression of miR-126-5p restored the differentiation of hAoSMCs-the expression of contractile/differentiated SMC markers, MYH11, and α-SMA, increased, whilst that of synthetic/dedifferentiated SMC markers, PCNA and Vimentin, decreased. Both mus and homo VEPH1 genes were validated as direct targets for miR-126-5p. VEPH1 re-expression impaired miR-126-5p-induced differentiation of hAoSMCs. In addition, Ang II-induced upregulation in matrix metalloproteinase (MMP)-9 and MMP2, two key proteases responsible for ECM degradation, in mouse aortas and hAoSMCs was reduced by miR-126-5p overexpression as well. Collectively, these results reveal an important, but previously unexplored, role of miR-126-5p in inhibiting AAA development-associated aortic SMC dedifferentiation.
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Yamada S, Asakura H. Management of disseminated intravascular coagulation associated with aortic aneurysm and vascular malformations. Int J Hematol 2020; 113:15-23. [PMID: 33175341 DOI: 10.1007/s12185-020-03028-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/04/2020] [Accepted: 10/22/2020] [Indexed: 11/25/2022]
Abstract
Aortic aneurysms and vascular malformations are sometimes associated with disseminated intravascular coagulation (DIC). A typical blood coagulation test shows decrease in platelet count and fibrinogen, and increases in fibrin/fibrinogen degradation products (FDP) and D-dimer. The coagulation activation marker thrombin-antithrombin complex (TAT) and the fibrinolysis activation marker plasmin-α2 plasmin inhibitor (PIC) are significantly increased. α2 plasmin inhibitor (α2PI) is significantly reduced. Since no prolongation of prothrombin time (PT) is noticeable and activated partial thromboplastin time (APTT) is shortened in some cases, DIC cannot be diagnosed or ruled out by PT and APTT alone. The cornerstone of treatment for DIC is to treat the underlying disease. However, surgery is not possible in some cases. Follow-up may be appropriate in patients with abnormal results from coagulation tests and no bleeding. However, pharmacotherapy is often required in cases with bleeding. Unfractionated heparin, low molecular weight heparin, protease inhibitors, recombinant thrombomodulin, direct oral anticoagulants, and factor XIII preparations are effective. If PIC is significantly increased and α2PI is significantly decreased, or if the bleeding is severe, tranexamic acid is used as an antifibrinolytic therapy with anticoagulant therapy. In such cases, attention should be paid not only to TAT but also changes in PIC.
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Affiliation(s)
- Shinya Yamada
- Department of Hematology, Kanazawa University Hospital, 13-1 Takaramachi, Kanazawa, Ishikawa, 920-8641, Japan.
| | - Hidesaku Asakura
- Department of Hematology, Kanazawa University Hospital, 13-1 Takaramachi, Kanazawa, Ishikawa, 920-8641, Japan
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Giannopoulos S, Trinidad E, Aronow H, Soukas P, Armstrong EJ. Εndovascular Repair of Extracranial Carotid Artery Aneurysms: A Systematic Review. Vasc Endovascular Surg 2020; 54:254-263. [PMID: 31894734 DOI: 10.1177/1538574419895383] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Both true and false extracranial carotid artery aneurysms (ECAA) are a potential source of morbidity and mortality. While ECAA have historically been treated surgically, endovascular reconstruction with stenting is an emerging treatment option. The aim of our study was to report clinical/radiologic outcomes following endovascular repair of ECAAs. METHODS A comprehensive systematic review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines. RESULTS A total of 68 case reports and case series, comprising 162 patients, were included. Most patients presented with at least one symptom or sign related to the ECAA (89.5%; N = 145/162). In 42.6% (N = 69/162) and 46.3% (N = 75/162) of the cases polytetrafluoroethylene covered and uncovered stents were deployed respectively. Immediate post-procedural imaging demonstrated complete aneurysm exclusion in 86.4% (N = 140/162) of the cases and minimal filling of the aneurysm sack in 10.5% (N = 17/162) of all cases. Perioperative adverse event rates were 3.1% for stroke, 1.2% for transient ischemic attack (TIA) and 4.3% for mortality. During a mean follow-up of 21.8months, there were additionally observed one stroke, two TIAs and three deaths. Overall 88.6 % of the patients (N = 117/132) remained asymptomatic, partially recovered or at least did not suffer from new neurologic deficits during follow up, with no signs of stenosis or occlusion of the carotid artery. CONCLUSIONS Endovascular stenting for the treatment of ECAAs is feasible with acceptable short- and long-term clinical and radiologic outcomes. Prospective real-world studies are needed to further validate the safety and the long-term patency of endovascular repair.
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Affiliation(s)
- Stefanos Giannopoulos
- Division of Cardiology, Rocky Mountain Regional VA Medical Center, University of Colorado, Denver, CO, USA
| | - Evan Trinidad
- Department of Internal Medicine, UCHealth University of Colorado Hospital, Denver, CO, USA
| | - Herbert Aronow
- Alpert Medical School at Brown University, Providence, RI, USA
| | - Peter Soukas
- Alpert Medical School at Brown University, Providence, RI, USA
| | - Ehrin J Armstrong
- Division of Cardiology, Rocky Mountain Regional VA Medical Center, University of Colorado, Denver, CO, USA
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15
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Tsialtas D, Bolognesi MG, Assimopoulos S, Volpi R, Bolognesi R. Electrocardiographic and echocardiographic features in patients with major arterial vascular disease assigned to surgical revascularization. Acta Cardiol 2019; 74:501-507. [PMID: 30507282 DOI: 10.1080/00015385.2018.1528665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Background: We aimed to depict the electrocardiographic and echocardiographic aspects in patients before elective major vascular surgery.Methods: We evaluated through standard 12 lead electrocardiography and transthoracic echocardiography 469 patients with asymptomatic large abdominal aortic aneurysm (AAA), 334 with critical carotid stenosis (CAS), and 238 with advanced peripheral artery disease (PAD) before surgical revascularization.Results: Patients with AAA were predominantly males (p < .001) with normal sinus rhythm (p = .026), were more affected by atrioventricular block (p = .033) and left anterior fascicular block (p < .001). They also presented larger aortic root size (p < .001) and septal hypertrophy (p = .036), in addition, atrial fibrillation was less frequent in the same group (p = .023). Patients with CAS were of older age (p < .001) with a substantial number of females (p < .001). They presented less left ventricular segmental kinetic disorders and fewer dilated ventricles (p = .004 and p < .001 respectively). Finally, those with PAD had reduced septal and posterior wall thickness (p < .01, p = .009 respectively), greater mitral and aortic annular calcification (p < .001), and were more affected by previous myocardial infarction (p < .001). The PR interval, left anterior fascicular block and aortic root size were independently associated with aneurysm, previous myocardial infarction with PAD, while smaller left ventricular end systolic volumes with carotid artery stenosis.Conclusions: Patients with AAA were mostly affected by cardiac conduction disorders, septal hypertrophy, aortic root dilation and less affected by atrial fibrillation. Patients with CAS were older with more normal sized ventricles, whereas, previous myocardial infarction was most common amongst patients with peripheral artery disease.
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Affiliation(s)
- Dimitri Tsialtas
- Dipartimento di Medicina Interna e Scienze Biomediche, Sezione di Cardiologia, Università degli Studi di Parma, Parma, Italy
| | - Maria Giulia Bolognesi
- Dipartimento di Medicina Interna e Scienze Biomediche, Sezione di Cardiologia, Università degli Studi di Parma, Parma, Italy
| | - Stephania Assimopoulos
- Faculty of Medicine, Department of Medical Biophysics, University of Toronto, Toronto, Canada
| | - Riccardo Volpi
- Dipartimento di Medicina Interna e Scienze Biomediche, Sezione di Cardiologia, Università degli Studi di Parma, Parma, Italy
| | - Roberto Bolognesi
- Dipartimento di Medicina Interna e Scienze Biomediche, Sezione di Cardiologia, Università degli Studi di Parma, Parma, Italy
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Meilhac O. High-density Lipoproteins (HDLs): Biomarkers or bio-actors of abdominal aortic aneurysmal disease? EBioMedicine 2019; 43:5-6. [PMID: 31060903 PMCID: PMC6558252 DOI: 10.1016/j.ebiom.2019.04.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 04/26/2019] [Indexed: 11/25/2022] Open
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Cornejo Saucedo M, García-Gil D, Brun Romero F, Torres do Rego A, Beltrán Romero L, Rodilla Sala E, Acosta Guerra G, Villanueva Martínez J, Casas Rojo J, Torres Macho J, García de Casasola-Sánchez G. Prevalence of abdominal aortic aneurysm in patients with high cardiovascular risk. Rev Clin Esp 2018. [DOI: 10.1016/j.rceng.2018.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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18
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Cornejo Saucedo M, García-Gil D, Brun Romero F, Torres do Rego A, Beltrán Romero L, Rodilla Sala E, Acosta Guerra G, Villanueva Martínez J, Casas Rojo J, Torres Macho J, García de Casasola-Sánchez G. Prevalencia de aneurisma de aorta abdominal en pacientes con alto riesgo cardiovascular. Rev Clin Esp 2018; 218:461-467. [DOI: 10.1016/j.rce.2018.08.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 07/17/2018] [Accepted: 08/10/2018] [Indexed: 01/27/2023]
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19
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Gianfagna F, Veronesi G, Tozzi M, Tarallo A, Borchini R, Ferrario MM, Bertù L, Montonati A, Castelli P, Castelli P, Tozzi M, Ferrario MM, Gianfagna F, Veronesi G, Bertù L, Mara L, Montonati A, Tarallo A, Franchin M, Angrisano A, Tadiello M, Quarti LM, Tagliabue I, Buscarini E, Farioli V, Sala G, Agrusti S, Colombo A, Ferraro S, Rivolta N, Piffaretti G, Borchini R, Conti M, Maio RC, Andreotta U, Ruspa M, Turetta L, Abate T, Rossi S, Ghiringhelli M, Quadrini F, Facchinetti N, Dashi O, Mombelli S, Mazzoleni D, Martignoni MP, Caravati G, De Luca G. Prevalence of Abdominal Aortic Aneurysms in the General Population and in Subgroups at High Cardiovascular Risk in Italy. Results of the RoCAV Population Based Study. Eur J Vasc Endovasc Surg 2018; 55:633-639. [DOI: 10.1016/j.ejvs.2018.01.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 01/10/2018] [Indexed: 02/08/2023]
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20
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Lin YT, Chen HJ, Chen PC, Sung FC. Increased Risk of Peripheral Arterial Disease in Patients With Abdominal Aortic Aneurysm: A Retrospective Cohort Study (Version 5). Angiology 2018; 70:41-46. [PMID: 29444589 DOI: 10.1177/0003319718757615] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Studies evaluating the risk of peripheral arterial disease (PAD) in patients with abdominal aortic aneurysm (AAA) are limited. We used insurance claims data of Taiwan to establish a cohort of 6590 patients with AAA newly diagnosed from 2000 to 2008 and 6590 controls without AAA matched by propensity score. The subsequent incidence density rates of PAD were estimated in both cohorts by the end of 2011, and the AAA cohort to the non-AAA cohort hazard ratios (HRs) of PAD were calculated using Cox proportional hazards models. The incidence density of PAD in the AAA cohort was 3.7-fold greater than that in the non-AAA cohort (14.1 vs 3.66 per 1000 person-years) with an adjusted HR of 3.56 (95% confidence interval [CI] = 2.89-4.39). For those without comorbidities, PAD in the AAA cohort was 7.4-fold greater than that in the non-AAA cohort (12.0 vs 1.61 per 1000 person-years) with an adjusted HR of 6.70 (95% CI = 4.43-10.1). The incidence of PAD in patients with ruptured AAA was lower than that in patients without rupture (6.95 vs 15.0 per 1000 person-years). This study demonstrates that patients with AAA are at increased risk of developing PAD.
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Affiliation(s)
- Yi-Ting Lin
- 1 Department of Emergency Medicine, Taichung Hospital, Ministry of Health and Welfare, Taichung, Taiwan
| | - Hsuan-Ju Chen
- 2 Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan
| | - Pei-Chun Chen
- 2 Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan.,3 Department of Public Health, China Medical University, Taichung, Taiwan
| | - Fung-Chang Sung
- 2 Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan.,4 Graduate Institute of Clinical Medical Science, College of Medicine, China Medical University, Taichung, Taiwan.,5 Department of Health Services Administration, China Medical University, Taichung, Taiwan
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PATELIS N, MORIS D, SCHIZAS D, DAMASKOS C, PERREA D, BAKOYIANNIS C, LIAKAKOS T, GEORGOPOULOS S. Animal Models in the Research of Abdominal Aortic Aneurysms Development. Physiol Res 2017; 66:899-915. [DOI: 10.33549/physiolres.933579] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) is a prevalent and potentially life threatening disease. Many animal models have been developed to simulate the natural history of the disease or test preclinical endovascular devices and surgical procedures. The aim of this review is to describe different methods of AAA induction in animal models and report on the effectiveness of the methods described in inducing an analogue of a human AAA. The PubMed database was searched for publications with titles containing the following terms “animal” or ‘‘animal model(s)’’ and keywords “research”, “aneurysm(s)’’, “aorta”, “pancreatic elastase’’, “Angiotensin”, “AngII” “calcium chloride” or “CaCl2”. Starting date for this search was set to 2004, since previously bibliography was already covered by the review of Daugherty and Cassis (2004). We focused on animal studies that reported a model of aneurysm development and progression. A number of different approaches of AAA induction in animal models has been developed, used and combined since the first report in the 1960’s. Although specific methods are successful in AAA induction in animal models, it is necessary that these methods and their respective results are in line with the pathophysiology and the mechanisms involved in human AAA development. A researcher should know the advantages/disadvantages of each animal model and choose the appropriate model.
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Affiliation(s)
- N. PATELIS
- First Department of Surgery, Vascular Unit, Laikon General Hospital, Medical School, National and Kapodistrian University of Athens, Greece
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Stimulation of Alpha7 Nicotinic Acetylcholine Receptor Attenuates Nicotine-Induced Upregulation of MMP, MCP-1, and RANTES through Modulating ERK1/2/AP-1 Signaling Pathway in RAW264.7 and MOVAS Cells. Mediators Inflamm 2017; 2017:2401027. [PMID: 29348704 PMCID: PMC5733626 DOI: 10.1155/2017/2401027] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 09/04/2017] [Accepted: 09/27/2017] [Indexed: 12/23/2022] Open
Abstract
Vagus nerve stimulation through alpha7 nicotine acetylcholine receptors (α7-nAChR) signaling had been demonstrated attenuation of inflammation. This study aimed to determine whether PNU-282987, a selective α7-nAChR agonist, affected activities of matrix metalloproteinase (MMP) and inflammatory cytokines in nicotine-treatment RAW264.7 and MOVAS cells and to assess the underlying molecular mechanisms. RAW264.7 and MOVAS cells were treated with nicotine at different concentrations (0, 1, 10, and 100 ng/ml) for 0–120 min. Nicotine markedly stimulated the phosphorylation of extracellular signal-regulated kinase1/2 (ERK1/2) and c-Jun in RAW264.7 cells. Pretreatment with U0126 significantly suppressed phosphorylation of ERK1/2 and further attenuated nicotine-induced activation of c-Jun and upregulation of MMP-2, MMP-9, monocyte chemotactic protein- (MCP-) 1, and regulated upon activation normal T cell expressed and secreted (RANTES). Similarly, nicotine treatment also increased phosphorylation of c-Jun and expressions of MMP-2, MMP-9, MCP-1, and RANTES in MOVAS cells. When cells were pretreated with PNU-282987, nicotine-induced activations of ERK1/2 and c-Jun in RAW264.7 cells and c-Jun in MOVAS cells were effectively inhibited. Furthermore, nicotine-induced secretions of MMP-2, MMP-9, MCP-1, and RANTES were remarkably downregulated. Treatment with α7-nAChR agonist inhibits nicotine-induced upregulation of MMP and inflammatory cytokines through modulating ERK1/2/AP-1 signaling in RAW264.7 cells and AP-1 in MOVAS cells, providing a new therapeutic for abdominal aortic aneurysm.
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Berg P, Stroetges RA, Miller LE, Schoefferle J. A Propensity Score–Matched Analysis of Inflammatory Response With Endovascular Aneurysm Sealing vs Endovascular Aneurysm Repair. J Endovasc Ther 2017; 24:670-674. [DOI: 10.1177/1526602817722019] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Purpose: To evaluate the risk of postimplantation syndrome associated with endovascular aneurysm sealing (EVAS) and endovascular aneurysm repair (EVAR) in patients treated for abdominal aortic aneurysm (AAA). Methods: From December 2013 to May 2015, 41 AAA patients treated with EVAS (mean age 72±9 years; 38 men) and 63 with EVAR (mean age 74±10 years; 55 men) at a single center were retrospectively reviewed. To control for treatment selection bias, propensity score matching was used to compare outcomes by treatment mode. Main outcomes were postimplantation syndrome (defined as temperature >38°C and leukocyte count >12,000/µL), inflammatory response markers [platelets and high-sensitivity C-reactive protein (hs-CRP)], and clinical complications through 30 days. Results: In 39 matched patients per group, the incidences of postimplantation syndrome (p=0.07), mean body temperature (p=0.05), mean leukocyte count (p=0.003), and mean hs-CRP (p<0.001) were proportionally lower with EVAS vs EVAR. Serious adverse events (0% vs 12.8%, p=0.05) and endoleaks (0% vs 10.3%, p=0.13) through 30 days were less frequent with EVAS, but the group differences were not significantly different. The choice of endovascular graft material influenced postoperative and 30-day clinical outcomes, with greater overall risk observed with polyester stent-grafts. Conclusion: Endovascular aneurysm sealing is associated with a blunted systematic inflammatory response compared with EVAR. Polyester stent-grafts induce the greatest periprocedural inflammatory response.
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Affiliation(s)
- Patrick Berg
- Department of Vascular & Endovascular Surgery, Katholisches Karl-Leisner-Klinikum, Marienhospital Kevelaer, Kevelaer, Nordrhein-Westfalen, Germany
| | - Roland A. Stroetges
- Department of Vascular & Endovascular Surgery, Katholisches Karl-Leisner-Klinikum, Marienhospital Kevelaer, Kevelaer, Nordrhein-Westfalen, Germany
| | | | - Jochen Schoefferle
- Medical Controlling, Katholisches Karl-Leisner-Klinikum, Marienhospital Kevelaer, Kevelaer, Germany
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A Novel Modification of the Murine Elastase Infusion Model of Abdominal Aortic Aneurysm Formation. Ann Vasc Surg 2017; 42:246-253. [PMID: 28288888 DOI: 10.1016/j.avsg.2017.01.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 12/17/2016] [Accepted: 01/14/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND To create a novel procedure that will decrease the mortality of experimental animals in the intraarterial infusion of elastase abdominal aortic aneurysm (AAA) model. METHODS Novel models were created by means of direct puncture in the infrarenal abdominal aortic aorta, intraluminal elastase in the 1-cm segment of abdominal aorta. Femoral artery cannula approach and infusing with elastase was considered as the traditional group and that infusing with saline solution as the control group. Survival rate, morphology and histology of aneurysms, and inflammation mediators were calculated. RESULTS Among the 36 rats, the average length from testicular arteries to left iliolumbar artery was 1.18 ± 0.22 cm, and 77.8% of them were longer than 1 cm. Procedure time was significantly shorter in novel group than that in 2 other groups (P = 0.006; P < 0.0001). During 24 hr postoperation, no death was observed in the novel group. Within 4 wk, survival rate in the control group was 60.6% and 80.8% in the novel group whereas 41.0% in the traditional group. Till the second week, all rats in the traditional and novel group had formed AAAs. And then, the survival rates and rupture rates of AAA between the 2 groups were similar within the following 2 wk (P = 0.487; P = 0.539). Inflammation degree and elastase content in intima media of aneurysms were similar (P = 0.720). However, Tumor necrosis factor alpha and Interleukin-1 beta levels were significantly lower in the novel group than those in the traditional group (P < 0.0001; P < 0.0001). CONCLUSIONS A novel rat AAA model was created by intraluminal elastase infusion through direct puncture the infrarenal aorta. This model is efficient and reliable, with a high survival rate and with similar morphology and histology of aortic aneurysms.
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Wang L, Djousse L, Song Y, Akinkuolie AO, Matsumoto C, Manson JE, Gaziano JM, Sesso HD. Associations of Diabetes and Obesity with Risk of Abdominal Aortic Aneurysm in Men. J Obes 2017; 2017:3521649. [PMID: 28326193 PMCID: PMC5343258 DOI: 10.1155/2017/3521649] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 01/29/2017] [Indexed: 12/24/2022] Open
Abstract
Background. The associations of diabetes and obesity with the risk of abdominal aortic aneurysm (AAA) are inconclusive in previous studies. Subjects/Methods. We conducted prospective analysis in the Physicians' Health Study. Among 25,554 male physicians aged ≥ 50 years who reported no AAA at baseline, 471 reported a newly diagnosed AAA during a mean of 10.4 years' follow-up. Results. Compared with men who had baseline body mass index (BMI) < 25 kg/m2, the multivariable hazard ratio (HR [95% CI]) of newly diagnosed AAA was 1.30 [1.06-1.59] for BMI 25-<30 kg/m2 and 1.69 [1.24-2.30] for BMI ≥ 30 kg/m2. The risk of diagnosed AAA was significantly higher by 6% with each unit increase in baseline BMI. This association was consistent regardless of the other known AAA risk factors and preexisting vascular diseases. Overall, baseline history of diabetes tended to be associated with a lower risk of diagnosed AAA (HR = 0.79 [0.57-1.11]); this association appeared to vary by follow-up time (HR = 1.56 and 0.63 during ≤ and >2 years' follow-up, resp.). Conclusion. In a large cohort of middle-aged and older men, obesity was associated with a higher risk, while history of diabetes tended to associate with a lower risk of diagnosed AAA, particularly over longer follow-up.
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Affiliation(s)
- Lu Wang
- Division of Preventive Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
- *Lu Wang:
| | - Luc Djousse
- Division of Aging, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
- Massachusetts Veterans Epidemiology Research and Information Center and Geriatric Research, Education, and Clinical Center, VA Boston Healthcare System, Boston, MA, USA
| | - Yiqing Song
- Department of Epidemiology, Indiana University Richard M. Fairbanks School of Public Health, Indianapolis, IN, USA
| | - Akintunde O. Akinkuolie
- Division of Preventive Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Chisa Matsumoto
- Department of Clinical Epidemiology, Division of Cardiology, Tokyo Medical University Hospital, Tokyo, Japan
| | - JoAnn E. Manson
- Division of Preventive Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - J. Michael Gaziano
- Division of Preventive Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
- Division of Aging, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
- Massachusetts Veterans Epidemiology Research and Information Center and Geriatric Research, Education, and Clinical Center, VA Boston Healthcare System, Boston, MA, USA
| | - Howard D. Sesso
- Division of Preventive Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
- Division of Aging, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
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Tsialtas D, Bolognesi MG, Volpi R, Bolognesi R. A not so adverse impact of diabetes on large abdominal aortic aneurysm. J Cardiovasc Med (Hagerstown) 2016; 18:780-781. [PMID: 27898504 DOI: 10.2459/jcm.0000000000000488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Dimitri Tsialtas
- Department of clinical and experimental medicine, University of Parma, Italy
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Peng YT, Shi XE, Li ZQ, He X, Sun YM. Particularly interesting Cys-His-rich protein is highly expressed in human intracranial aneurysms and resists aneurysmal rupture. Exp Ther Med 2016; 12:3905-3912. [PMID: 28101173 PMCID: PMC5228173 DOI: 10.3892/etm.2016.3881] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 09/27/2016] [Indexed: 12/14/2022] Open
Abstract
Particularly interesting Cys-His-rich protein (PINCH) has several biological functions in cancer development, invasion and metastasis in malignant cells, and the expression of PINCH is upregulated in several cancer types, including breast cancer, gastric adenocarcinoma and rectal cancer. However, the contribution of PINCH to human cerebral aneurysms remains largely unknown. Therefore, the significance of PINCH expression in cerebral aneurysm growth and rupture was examined in the present study. The protein expression levels of alpha-smooth muscle actin, osteopontin (OPN), matrix metalloproteinase (MMP) 9 and PINCH were evaluated using immunohistochemistry and western blot analyses. The results demonstrate that the protein expression levels of OPN, MMP9 and PINCH in the unruptured intracranial aneurysm (UA) and ruptured intracranial aneurysm (RA) groups were markedly higher than those of the control group, whereas OPN and PINCH expression levels were decreased in the RA group compared to those of the UA group. In addition, there was a strong correlation between PINCH and tumor size (r=0.650 and P=0.0026), as well as between PINCH and OPN (r=0.639 and P=0.0033) in the unruptured cerebral aneurysms. However, the correlation between PINCH and tumor size (r=0.450 and P=0.1393) and between PINCH and OPN (r=0.366 and P=0.2426) revealed no obvious difference in the ruptured cerebral aneurysms. In conclusion, PINCH was highly expressed in the UAs, which may be a critical factor for preventing aneurysmal rupture. Moreover, PINCH may facilitate intracranial aneurysm progression, at least partially, through the activation of extracellular signal-regulated kinase signaling and the suppression of c-Jun N-terminal kinase signaling.
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Affiliation(s)
- Yu-Tao Peng
- Department of Neurosurgery, Fu Xing Hospital, Capital Medical University, Beijing 100038, P.R. China
| | - Xiang-En Shi
- Department of Neurosurgery, Fu Xing Hospital, Capital Medical University, Beijing 100038, P.R. China
| | - Zhi-Qiang Li
- Department of Neurosurgery, Fu Xing Hospital, Capital Medical University, Beijing 100038, P.R. China
| | - Xin He
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing 100038, P.R. China
| | - Yu-Ming Sun
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing 100038, P.R. China
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Baranyi U, Stern C, Winter B, Türkcan A, Scharinger B, Stelzmüller ME, Aschacher T, Andreas M, Ehrlich M, Laufer G, Bernhard D, Messner B. The megaaortic syndrome: Progression of ascending aortic aneurysm or a disease of distinct origin? Int J Cardiol 2016; 227:717-726. [PMID: 27836291 DOI: 10.1016/j.ijcard.2016.10.072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 10/27/2016] [Indexed: 10/20/2022]
Abstract
BACKGROUND Thoracic aortic aneurysm (TAA) is an often asymptomatic disease with fatal outcome, such as dissection or rupture. The megaaortic syndrome (MAS) is an extensive dilatation of the whole aorta with low incidence but high lethal outcome with unknown pathophysiology so far. METHODS AND RESULTS We compared aortic tissue of patients with sporadic TAAs and MAS of the ascending aorta with non-aneurysmal control tissues. Specimens of MAS patients showed a significantly reduced thickness of the media but an increased thickness of the intima compared to control tissue and TAAs with moderate dilatation. Advanced media degeneration however was detectable in both, TAAs with enhanced luminal diameter and MAS specimens, accompanied by reduced medial smooth muscle cell-density. Further specimens of MAS were characterized by massive atherosclerotic lesions in contrast to specimens of sporadic TAA patients. Infiltrations of macrophages in atherosclerotic lesions but also in the media adjacent to the adventitia were significantly elevated in tissue of TAAs with dilatation ≤6cm. Of note, atherosclerotic plaque-associated macrophages as well as those in the external media produce huge amounts of MMP-9 which is possibly involved in media degeneration and tissue destruction. CONCLUSIONS Taken together these results demonstrate that the pathology of MAS shows similarities with that of TAAs but pathological differences in the ascending aorta, suggesting that MAS might be a disease of different origin.
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Affiliation(s)
- Ulrike Baranyi
- Cardiac Surgery Research Laboratory, Department of Surgery, Medical University of Vienna, Vienna, Austria
| | - Christian Stern
- Cardiac Surgery Research Laboratory, Department of Surgery, Medical University of Vienna, Vienna, Austria
| | - Birgitta Winter
- Cardiac Surgery Research Laboratory, Department of Surgery, Medical University of Vienna, Vienna, Austria
| | - Adrian Türkcan
- Cardiac Surgery Research Laboratory, Department of Surgery, Medical University of Vienna, Vienna, Austria
| | - Bernhard Scharinger
- Cardiac Surgery Research Laboratory, Department of Surgery, Medical University of Vienna, Vienna, Austria
| | | | - Thomas Aschacher
- Department of Surgery, Cardiac Surgery, Medical University of Vienna, Vienna, Austria
| | - Martin Andreas
- Department of Surgery, Cardiac Surgery, Medical University of Vienna, Vienna, Austria
| | - Marek Ehrlich
- Department of Surgery, Cardiac Surgery, Medical University of Vienna, Vienna, Austria
| | - Günther Laufer
- Department of Surgery, Cardiac Surgery, Medical University of Vienna, Vienna, Austria
| | - David Bernhard
- Cardiac Surgery Research Laboratory Innsbruck, University Clinic for Cardiac Surgery, Innsbruck Medical University, Innsbruck, Austria
| | - Barbara Messner
- Cardiac Surgery Research Laboratory, Department of Surgery, Medical University of Vienna, Vienna, Austria.
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Kotani K, Sahebkar A, Serban MC, Ursoniu S, Mikhailidis DP, Mariscalco G, Jones SR, Martin S, Blaha MJ, Toth PP, Rizzo M, Kostner K, Rysz J, Banach M. Lipoprotein(a) Levels in Patients With Abdominal Aortic Aneurysm. Angiology 2016; 68:99-108. [PMID: 26980774 DOI: 10.1177/0003319716637792] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Circulating markers relevant to the development of abdominal aortic aneurysm (AAA) are currently required. Lipoprotein(a), Lp(a), is considered a candidate marker associated with the presence of AAA. The present meta-analysis aimed to evaluate the association between circulating Lp(a) levels and the presence of AAA. The PubMed-based search was conducted up to April 30, 2015, to identify the studies focusing on Lp(a) levels in patients with AAA and controls. Quantitative data synthesis was performed using a random effects model, with standardized mean difference (SMD) and 95% confidence interval (CI) as summary statistics. Overall, 9 studies were identified. After a combined analysis, patients with AAA were found to have a significantly higher level of Lp(a) compared to the controls (SMD: 0.87, 95% CI: 0.41-1.33, P < .001). This result remained robust in the sensitivity analysis, and its significance was not influenced after omitting each of the included studies from the meta-analysis. The present meta-analysis confirmed a higher level of circulating Lp(a) in patients with AAA compared to controls. High Lp(a) levels can be associated with the presence of AAA, and Lp(a) may be a marker in screening for AAA. Further studies are needed to establish the clinical utility of measuring Lp(a) in the prevention and management of AAA.
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Affiliation(s)
- Kazuhiko Kotani
- 1 Division of Community and Family Medicine, Jichi Medical University, Shimotsuke-City, Japan
| | - Amirhossein Sahebkar
- 2 Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,3 Metabolic Research Centre, Royal Perth Hospital, School of Medicine and Pharmacology, University of Western Australia, Perth, Australia
| | - Maria-Corina Serban
- 4 Discipline of Pathophysiology, Department of Functional Sciences, "Victor Babes" University of Medicine and Pharmacy, Timisoara, Romania
| | - Sorin Ursoniu
- 5 Discipline of Public Health, Department of Functional Sciences, "Victor Babes" University of Medicine and Pharmacy, Timisoara, Romania
| | - Dimitri P Mikhailidis
- 6 Department of Clinical Biochemistry, Royal Free Campus, University College London Medical School, University College London, London, United Kingdom
| | - Giovanni Mariscalco
- 7 Department of Cardiovascular Sciences, University of Leicester Glenfield Hospital, Leicester, United Kingdom
| | - Steven R Jones
- 8 The Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, MD, USA
| | - Seth Martin
- 8 The Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, MD, USA
| | - Michael J Blaha
- 8 The Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, MD, USA
| | - Peter P Toth
- 8 The Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, MD, USA.,9 Preventive Cardiology, CGH Medical Center, Sterling, IL, USA
| | - Manfredi Rizzo
- 10 Biomedical Department of Internal Medicine and Medical Specialties, University of Palermo, Italy
| | - Karam Kostner
- 11 Mater Hospital, University of Queensland, St Lucia, Australia
| | - Jacek Rysz
- 12 Department of Hypertension, Nephrology and Hypertension, WAM University Hospital in Lodz, Medical University of Lodz, Poland
| | - Maciej Banach
- 12 Department of Hypertension, Nephrology and Hypertension, WAM University Hospital in Lodz, Medical University of Lodz, Poland
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30
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Lu WW, Jia LX, Ni XQ, Zhao L, Chang JR, Zhang JS, Hou YL, Zhu Y, Guan YF, Yu YR, Du J, Tang CS, Qi YF. Intermedin1-53 Attenuates Abdominal Aortic Aneurysm by Inhibiting Oxidative Stress. Arterioscler Thromb Vasc Biol 2016; 36:2176-2190. [PMID: 27634835 DOI: 10.1161/atvbaha.116.307825] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 08/31/2016] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Oxidative stress plays a critical role in the development of abdominal aortic aneurysm (AAA). Intermedin (IMD) is a regulator of oxidative stress. Here, we investigated whether IMD reduces AAA by inhibiting oxidative stress. APPROACH AND RESULTS In angiotensin II-induced ApoE-/- mouse and CaCl2-induced C57BL/6J mouse model of AAA, IMD1-53 significantly reduced the incidence of AAA and maximal aortic diameter. Ultrasonography, hematoxylin, and eosin staining and Verhoeff-van Gieson staining showed that IMD1-53 significantly decreased the enlarged aortas and elastic lamina degradation induced by angiotensin II or CaCl2. Mechanistically, IMD1-53 attenuated oxidative stress, inflammation, vascular smooth muscle cell apoptosis, and matrix metalloproteinase activation. IMD1-53 inhibited the activation of redox-sensitive signaling pathways, decreased the mRNA and protein expression of nicotinamide adenine dinucleotide phosphate oxidase subunits, and reduced the activity of nicotinamide adenine dinucleotide phosphate oxidase in AAA mice. Expression of Nox4 was upregulated in human AAA segments and in angiotensin II-treated mouse aortas and was markedly decreased by IMD1-53. In vitro, vascular smooth muscle cells with small-interfering RNA knockdown of IMD showed significantly increased angiotensin II-induced reactive oxygen species, and small-interfering RNA knockdown of Nox4 markedly inhibited the reactive oxygen species. IMD knockdown further increased the apoptosis of vascular smooth muscle cells and inflammation, which was reversed by Nox4 knockdown. Preincubation with IMD17-47 and protein kinase A inhibitor H89 inhibited the effect of IMD1-53, reducing Nox4 protein levels. CONCLUSIONS IMD1-53 could have a protective effect on AAA by inhibiting oxidative stress.
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Affiliation(s)
- Wei-Wei Lu
- From the Key Laboratory of Remodeling-Related Cardiovascular Diseases, Beijing Institute of Heart, Lung, and Blood Vessel Diseases, Beijing An Zhen Hospital, Capital Medical University, Ministry of Education, China (W.-W.L., L.-X.J., X.-Q.N., L.Z., Y.-L.H., J.D., Y.-F.Q.); Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., L.Z., J.-R.C., J.-S.Z., Y.Z., Y.-F.G., C.-S.T., Y.-F.Q.); and Department of Pathogen Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., J.-S.Z., Y.-L.H., Y.-R.Y., Y.-F.Q.)
| | - Li-Xin Jia
- From the Key Laboratory of Remodeling-Related Cardiovascular Diseases, Beijing Institute of Heart, Lung, and Blood Vessel Diseases, Beijing An Zhen Hospital, Capital Medical University, Ministry of Education, China (W.-W.L., L.-X.J., X.-Q.N., L.Z., Y.-L.H., J.D., Y.-F.Q.); Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., L.Z., J.-R.C., J.-S.Z., Y.Z., Y.-F.G., C.-S.T., Y.-F.Q.); and Department of Pathogen Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., J.-S.Z., Y.-L.H., Y.-R.Y., Y.-F.Q.)
| | - Xian-Qiang Ni
- From the Key Laboratory of Remodeling-Related Cardiovascular Diseases, Beijing Institute of Heart, Lung, and Blood Vessel Diseases, Beijing An Zhen Hospital, Capital Medical University, Ministry of Education, China (W.-W.L., L.-X.J., X.-Q.N., L.Z., Y.-L.H., J.D., Y.-F.Q.); Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., L.Z., J.-R.C., J.-S.Z., Y.Z., Y.-F.G., C.-S.T., Y.-F.Q.); and Department of Pathogen Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., J.-S.Z., Y.-L.H., Y.-R.Y., Y.-F.Q.)
| | - Lei Zhao
- From the Key Laboratory of Remodeling-Related Cardiovascular Diseases, Beijing Institute of Heart, Lung, and Blood Vessel Diseases, Beijing An Zhen Hospital, Capital Medical University, Ministry of Education, China (W.-W.L., L.-X.J., X.-Q.N., L.Z., Y.-L.H., J.D., Y.-F.Q.); Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., L.Z., J.-R.C., J.-S.Z., Y.Z., Y.-F.G., C.-S.T., Y.-F.Q.); and Department of Pathogen Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., J.-S.Z., Y.-L.H., Y.-R.Y., Y.-F.Q.)
| | - Jin-Rui Chang
- From the Key Laboratory of Remodeling-Related Cardiovascular Diseases, Beijing Institute of Heart, Lung, and Blood Vessel Diseases, Beijing An Zhen Hospital, Capital Medical University, Ministry of Education, China (W.-W.L., L.-X.J., X.-Q.N., L.Z., Y.-L.H., J.D., Y.-F.Q.); Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., L.Z., J.-R.C., J.-S.Z., Y.Z., Y.-F.G., C.-S.T., Y.-F.Q.); and Department of Pathogen Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., J.-S.Z., Y.-L.H., Y.-R.Y., Y.-F.Q.)
| | - Jin-Sheng Zhang
- From the Key Laboratory of Remodeling-Related Cardiovascular Diseases, Beijing Institute of Heart, Lung, and Blood Vessel Diseases, Beijing An Zhen Hospital, Capital Medical University, Ministry of Education, China (W.-W.L., L.-X.J., X.-Q.N., L.Z., Y.-L.H., J.D., Y.-F.Q.); Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., L.Z., J.-R.C., J.-S.Z., Y.Z., Y.-F.G., C.-S.T., Y.-F.Q.); and Department of Pathogen Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., J.-S.Z., Y.-L.H., Y.-R.Y., Y.-F.Q.)
| | - Yue-Long Hou
- From the Key Laboratory of Remodeling-Related Cardiovascular Diseases, Beijing Institute of Heart, Lung, and Blood Vessel Diseases, Beijing An Zhen Hospital, Capital Medical University, Ministry of Education, China (W.-W.L., L.-X.J., X.-Q.N., L.Z., Y.-L.H., J.D., Y.-F.Q.); Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., L.Z., J.-R.C., J.-S.Z., Y.Z., Y.-F.G., C.-S.T., Y.-F.Q.); and Department of Pathogen Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., J.-S.Z., Y.-L.H., Y.-R.Y., Y.-F.Q.)
| | - Yi Zhu
- From the Key Laboratory of Remodeling-Related Cardiovascular Diseases, Beijing Institute of Heart, Lung, and Blood Vessel Diseases, Beijing An Zhen Hospital, Capital Medical University, Ministry of Education, China (W.-W.L., L.-X.J., X.-Q.N., L.Z., Y.-L.H., J.D., Y.-F.Q.); Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., L.Z., J.-R.C., J.-S.Z., Y.Z., Y.-F.G., C.-S.T., Y.-F.Q.); and Department of Pathogen Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., J.-S.Z., Y.-L.H., Y.-R.Y., Y.-F.Q.)
| | - You-Fei Guan
- From the Key Laboratory of Remodeling-Related Cardiovascular Diseases, Beijing Institute of Heart, Lung, and Blood Vessel Diseases, Beijing An Zhen Hospital, Capital Medical University, Ministry of Education, China (W.-W.L., L.-X.J., X.-Q.N., L.Z., Y.-L.H., J.D., Y.-F.Q.); Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., L.Z., J.-R.C., J.-S.Z., Y.Z., Y.-F.G., C.-S.T., Y.-F.Q.); and Department of Pathogen Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., J.-S.Z., Y.-L.H., Y.-R.Y., Y.-F.Q.)
| | - Yan-Rong Yu
- From the Key Laboratory of Remodeling-Related Cardiovascular Diseases, Beijing Institute of Heart, Lung, and Blood Vessel Diseases, Beijing An Zhen Hospital, Capital Medical University, Ministry of Education, China (W.-W.L., L.-X.J., X.-Q.N., L.Z., Y.-L.H., J.D., Y.-F.Q.); Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., L.Z., J.-R.C., J.-S.Z., Y.Z., Y.-F.G., C.-S.T., Y.-F.Q.); and Department of Pathogen Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., J.-S.Z., Y.-L.H., Y.-R.Y., Y.-F.Q.)
| | - Jie Du
- From the Key Laboratory of Remodeling-Related Cardiovascular Diseases, Beijing Institute of Heart, Lung, and Blood Vessel Diseases, Beijing An Zhen Hospital, Capital Medical University, Ministry of Education, China (W.-W.L., L.-X.J., X.-Q.N., L.Z., Y.-L.H., J.D., Y.-F.Q.); Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., L.Z., J.-R.C., J.-S.Z., Y.Z., Y.-F.G., C.-S.T., Y.-F.Q.); and Department of Pathogen Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., J.-S.Z., Y.-L.H., Y.-R.Y., Y.-F.Q.)
| | - Chao-Shu Tang
- From the Key Laboratory of Remodeling-Related Cardiovascular Diseases, Beijing Institute of Heart, Lung, and Blood Vessel Diseases, Beijing An Zhen Hospital, Capital Medical University, Ministry of Education, China (W.-W.L., L.-X.J., X.-Q.N., L.Z., Y.-L.H., J.D., Y.-F.Q.); Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., L.Z., J.-R.C., J.-S.Z., Y.Z., Y.-F.G., C.-S.T., Y.-F.Q.); and Department of Pathogen Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., J.-S.Z., Y.-L.H., Y.-R.Y., Y.-F.Q.)
| | - Yong-Fen Qi
- From the Key Laboratory of Remodeling-Related Cardiovascular Diseases, Beijing Institute of Heart, Lung, and Blood Vessel Diseases, Beijing An Zhen Hospital, Capital Medical University, Ministry of Education, China (W.-W.L., L.-X.J., X.-Q.N., L.Z., Y.-L.H., J.D., Y.-F.Q.); Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., L.Z., J.-R.C., J.-S.Z., Y.Z., Y.-F.G., C.-S.T., Y.-F.Q.); and Department of Pathogen Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China (W.-W.L., X.-Q.N., J.-S.Z., Y.-L.H., Y.-R.Y., Y.-F.Q.).
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31
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Uhrin P, Breuss JM. Protective role of the matricellular protein CCN3 in abdominal aortic aneurysm. J Thorac Dis 2016; 8:2365-2368. [PMID: 27746977 DOI: 10.21037/jtd.2016.09.21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Pavel Uhrin
- Department of Vascular Biology and Thrombosis Research, Center for Physiology and Pharmacology, Medical University of Vienna, 1090 Vienna, Austria
| | - Johannes M Breuss
- Department of Vascular Biology and Thrombosis Research, Center for Physiology and Pharmacology, Medical University of Vienna, 1090 Vienna, Austria
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32
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Fennell VS, Kalani MYS, Atwal G, Martirosyan NL, Spetzler RF. Biology of Saccular Cerebral Aneurysms: A Review of Current Understanding and Future Directions. Front Surg 2016; 3:43. [PMID: 27504449 PMCID: PMC4958945 DOI: 10.3389/fsurg.2016.00043] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Accepted: 07/06/2016] [Indexed: 12/24/2022] Open
Abstract
Understanding the biology of intracranial aneurysms is a clinical quandary. How these aneurysms form, progress, and rupture is poorly understood. Evidence indicates that well-established risk factors play a critical role, along with immunologic factors, in their development and clinical outcomes. Much of the expanding knowledge of the inception, progression, and rupture of intracranial aneurysms implicates inflammation as a critical mediator of aneurysm pathogenesis. Thus, therapeutic targets exploiting this arm of aneurysm pathogenesis have been implemented, often with promising outcomes.
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Affiliation(s)
- Vernard S Fennell
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center , Phoenix, AZ , USA
| | - M Yashar S Kalani
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center , Phoenix, AZ , USA
| | - Gursant Atwal
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center , Phoenix, AZ , USA
| | - Nikolay L Martirosyan
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center , Phoenix, AZ , USA
| | - Robert F Spetzler
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center , Phoenix, AZ , USA
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33
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Emerging roles of CCN proteins in vascular development and pathology. J Cell Commun Signal 2016; 10:251-257. [PMID: 27241177 DOI: 10.1007/s12079-016-0332-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 05/19/2016] [Indexed: 01/02/2023] Open
Abstract
The CCN family of proteins consists of 6 members (CCN1-CCN6) that share conserved functional domains. These matricellular proteins interact with growth factors, extracellular matrix (ECM) proteins, cell surface integrins and other receptors to promote ECM-intracellular signaling. This signaling leads to propagation of a variety of cellular actions, including adhesion, invasion, migration and proliferation within several cell types, including epithelial, endothelial and smooth muscle cells. Though CCNs share significant homology, the function of each is unique due to distinct and cell specific expression patterns. Thus, their correct spatial and temporal expressions are critical during embryonic development, wound healing, angiogenesis and fibrosis. Disruption of these patterns leads to severe development disorders and contributes to the pathological progression of cancers, vascular diseases and chronic inflammatory diseases such as colitis, rheumatoid arthritis and atherosclerosis. While the effects of CCNs are diverse, this review will focus on the role of CCNs within the vasculature during development and in vascular diseases.
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34
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Quantification of abdominal aortic aneurysm stiffness using magnetic resonance elastography and its comparison to aneurysm diameter. J Vasc Surg 2016; 64:966-74. [PMID: 27131923 DOI: 10.1016/j.jvs.2016.03.426] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 03/12/2016] [Indexed: 01/29/2023]
Abstract
OBJECTIVE Abdominal aortic aneurysm (AAA) wall stiffness has been suggested to be an important factor in the overall rupture risk assessment compared with anatomic measure. We hypothesize that AAA diameter will have no correlation to AAA wall stiffness. The aim of this study is to (1) determine magnetic resonance elastography (MRE)-derived aortic wall stiffness in AAA patients and its correlation to AAA diameter; (2) determine the correlation between AAA stiffness and amount of thrombus and calcium; and (3) compare the AAA stiffness measurements against age-matched healthy individuals. METHODS In vivo abdominal aortic MRE was performed on 36 individuals (24 patients with AAA measuring 3-10 cm and 12 healthy volunteers), aged 36 to 78 years, after obtaining written informed consent under the approval of the Institutional Review Board. MRE images were processed to obtain spatial stiffness maps of the aorta. AAA diameter, amount of thrombus, and calcium score were reported by experienced interventional radiologists. Spearman correlation, Wilcoxon signed rank test, and Mann-Whitney test were performed to determine the correlation between AAA stiffness and diameter and to determine the significant difference in stiffness measurements between AAA patients and healthy individuals. RESULTS No significant correlation (P > .1) was found between AAA stiffness and diameter or amount of thrombus or calcium score. AAA stiffness (mean 13.97 ± 4.2 kPa) is significantly (P ≤ .02) higher than remote normal aorta in AAA (mean 8.87 ± 2.2 kPa) patients and in normal individuals (mean 7.1 ± 1.9 kPa). CONCLUSIONS Our results suggest that AAA wall stiffness may provide additional information independent of AAA diameter, which may contribute to our understanding of AAA pathophysiology, biomechanics, and risk for rupture.
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35
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Zhang C, van der Voort D, Shi H, Zhang R, Qing Y, Hiraoka S, Takemoto M, Yokote K, Moxon JV, Norman P, Rittié L, Kuivaniemi H, Atkins GB, Gerson SL, Shi GP, Golledge J, Dong N, Perbal B, Prosdocimo DA, Lin Z. Matricellular protein CCN3 mitigates abdominal aortic aneurysm. J Clin Invest 2016; 126:1282-99. [PMID: 26974158 DOI: 10.1172/jci82337] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 01/28/2016] [Indexed: 12/19/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) is a major cause of morbidity and mortality; however, the mechanisms that are involved in disease initiation and progression are incompletely understood. Extracellular matrix proteins play an integral role in modulating vascular homeostasis in health and disease. Here, we determined that the expression of the matricellular protein CCN3 is strongly reduced in rodent AAA models, including angiotensin II-induced AAA and elastase perfusion-stimulated AAA. CCN3 levels were also reduced in human AAA biopsies compared with those in controls. In murine models of induced AAA, germline deletion of Ccn3 resulted in severe phenotypes characterized by elastin fragmentation, vessel dilation, vascular inflammation, dissection, heightened ROS generation, and smooth muscle cell loss. Conversely, overexpression of CCN3 mitigated both elastase- and angiotensin II-induced AAA formation in mice. BM transplantation experiments suggested that the AAA phenotype of CCN3-deficient mice is intrinsic to the vasculature, as AAA was not exacerbated in WT animals that received CCN3-deficient BM and WT BM did not reduce AAA severity in CCN3-deficient mice. Genetic and pharmacological approaches implicated the ERK1/2 pathway as a critical regulator of CCN3-dependent AAA development. Together, these results demonstrate that CCN3 is a nodal regulator in AAA biology and identify CCN3 as a potential therapeutic target for vascular disease.
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Prasad K, Sarkar A, Zafar MA, Shoker A, Moselhi HEI, Tranquilli M, Ziganshin BA, Elefteriades JA. Advanced Glycation End Products and its Soluble Receptors in the Pathogenesis of Thoracic Aortic Aneurysm. AORTA (STAMFORD, CONN.) 2016; 4:1-10. [PMID: 27766267 PMCID: PMC5068493 DOI: 10.12945/j.aorta.2015.15.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 05/06/2015] [Indexed: 12/18/2022]
Abstract
BACKGROUND Matrix metalloproteinases (MMPs) have been implicated in the pathogenesis of thoracic aortic aneurysms (TAAs). Cytokines [Interleukin (IL)-Iβ, IL-2, IL-6, and TNF-α)] increase the expression of MMP-2 and -3. Advanced glycation end products (AGEs) interact with cell receptors to increase the release of cytokines. Circulating soluble receptors for AGEs (sRAGE) and endogenous secretory RAGE (esRAGE) compete with membrane bound RAGE for binding with AGEs and reduce the production of cytokines. It is hypothesized that low levels of serum sRAGE and esRAGE and high levels of AGEs, AGEs/sRAGE, and AGEs/esRAGE would increase the levels of cytokines that would increase the levels MMPs, thus contributing to the formation of TAAs. METHODS The study population was composed of 17 control subjects and 20 patients with TAA. Blood samples were collected for measurement of serum sRAGE, esRAGE, AGEs, cytokines, and MMPs. AGEs, sRAGE, and esRAGE were measured using ELISA kits, whereas the remaining parameters were measured using the Luminex Multi-Analyte system. RESULTS The levels of sRAGE were lower, while the levels of AGEs, AGEs/sRAGE, AGEs/esRAGE, cytokines and MMPs were higher in patients with TAA compared to controls. The levels of sRAGE were inversely correlated with cytokines and MMPs, while AGEs, AGEs/sRAGE and AGEs/esRAGE were positively correlated with cytokines and MMPs. Cytokines were positively correlated with MMPs. CONCLUSIONS The data suggest that the AGE-RAGE axis may be involved in the pathogenesis of TAA and that low levels of sRAGE and high levels of AGEs, AGEs/sRAGE, and AGEs/esRAGE are risk factors for TAA.
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Affiliation(s)
- Kailash Prasad
- Department of Physiology, College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Abdullah Sarkar
- Aortic Institute at Yale-New Haven, Yale University School of Medicine, Connecticut, USA
- College of Medicine, Alfaisal University, Ryadh, Saudi Arabia
| | - Mohammad A. Zafar
- Aortic Institute at Yale-New Haven, Yale University School of Medicine, Connecticut, USA
| | - Ahmed Shoker
- Department of Medicine, Royal University Hospital, Saskatoon, Saskatchewan, Canada
| | - Hamdi EI Moselhi
- Department of Medicine, Royal University Hospital, Saskatoon, Saskatchewan, Canada
| | - Maryann Tranquilli
- Aortic Institute at Yale-New Haven, Yale University School of Medicine, Connecticut, USA
| | - Bulat A. Ziganshin
- Aortic Institute at Yale-New Haven, Yale University School of Medicine, Connecticut, USA
- Department of Surgical Diseases #2, Kazan State Medical University, Kazan, Russia
| | - John A. Elefteriades
- Aortic Institute at Yale-New Haven, Yale University School of Medicine, Connecticut, USA
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Peshkova IO, Schaefer G, Koltsova EK. Atherosclerosis and aortic aneurysm – is inflammation a common denominator? FEBS J 2016; 283:1636-52. [DOI: 10.1111/febs.13634] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 11/20/2015] [Accepted: 12/18/2015] [Indexed: 12/30/2022]
Affiliation(s)
- Iuliia O. Peshkova
- Blood Cell Development and Function Program Fox Chase Cancer Center Philadephia PA USA
| | - Giulia Schaefer
- Blood Cell Development and Function Program Fox Chase Cancer Center Philadephia PA USA
| | - Ekaterina K. Koltsova
- Blood Cell Development and Function Program Fox Chase Cancer Center Philadephia PA USA
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Kaźmierski P, Pająk M, Bogusiak K. Concomitance of atherosclerotic lesions in arteries of the lower extremities and carotid arteries in patients with abdominal aorta aneurysm. Artery Res 2016. [DOI: 10.1016/j.artres.2016.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Liu Z, Morgan S, Ren J, Wang Q, Annis DS, Mosher DF, Zhang J, Sorenson CM, Sheibani N, Liu B. Thrombospondin-1 (TSP1) contributes to the development of vascular inflammation by regulating monocytic cell motility in mouse models of abdominal aortic aneurysm. Circ Res 2015; 117:129-41. [PMID: 25940549 DOI: 10.1161/circresaha.117.305262] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Accepted: 05/04/2015] [Indexed: 01/12/2023]
Abstract
RATIONALE Histological examination of abdominal aortic aneurysm (AAA) tissues demonstrates extracellular matrix destruction and infiltration of inflammatory cells. Previous work with mouse models of AAA has shown that anti-inflammatory strategies can effectively attenuate aneurysm formation. Thrombospondin-1 is a matricellular protein involved in the maintenance of vascular structure and homeostasis through the regulation of biological functions, such as cell proliferation, apoptosis, and adhesion. Expression levels of thrombospondin-1 correlate with vascular disease conditions. OBJECTIVE To use thrombospondin-1-deficient (Thbs1(-/-)) mice to test the hypothesis that thrombospondin-1 contributes to pathogenesis of AAAs. METHODS AND RESULTS Mouse experimental AAA was induced through perivascular treatment with calcium phosphate, intraluminal perfusion with porcine elastase, or systemic administration of angiotensin II. Induction of AAA increased thrombospondin-1 expression in aortas of C57BL/6 or apoE-/- mice. Compared with Thbs1(+/+) mice, Thbs1(-/-) mice developed significantly smaller aortic expansion when subjected to AAA inductions, which was associated with diminished infiltration of macrophages. Thbs1(-/-) monocytic cells had reduced adhesion and migratory capacity in vitro compared with wild-type counterparts. Adoptive transfer of Thbs1(+/+) monocytic cells or bone marrow reconstitution rescued aneurysm development in Thbs1(-/-) mice. CONCLUSIONS Thrombospondin-1 expression plays a significant role in regulation of migration and adhesion of mononuclear cells, contributing to vascular inflammation during AAA development.
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Affiliation(s)
- Zhenjie Liu
- From the Departments of Surgery (Z.L., S.M., J.R., Q.W., B.L.), Pathology and Laboratory Medicine (B.L.), Biomolecular Chemistry and Medicine (D.S.A., D.F.M.), McArdle Laboratory for Cancer Research (J.Z.), Pediatrics (C.M.S.), and Ophthalmology and Visual Sciences (N.S.), University of Wisconsin School of Medicine and Public Health, Madison; and Department of Vascular Surgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (Z.L.)
| | - Stephanie Morgan
- From the Departments of Surgery (Z.L., S.M., J.R., Q.W., B.L.), Pathology and Laboratory Medicine (B.L.), Biomolecular Chemistry and Medicine (D.S.A., D.F.M.), McArdle Laboratory for Cancer Research (J.Z.), Pediatrics (C.M.S.), and Ophthalmology and Visual Sciences (N.S.), University of Wisconsin School of Medicine and Public Health, Madison; and Department of Vascular Surgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (Z.L.)
| | - Jun Ren
- From the Departments of Surgery (Z.L., S.M., J.R., Q.W., B.L.), Pathology and Laboratory Medicine (B.L.), Biomolecular Chemistry and Medicine (D.S.A., D.F.M.), McArdle Laboratory for Cancer Research (J.Z.), Pediatrics (C.M.S.), and Ophthalmology and Visual Sciences (N.S.), University of Wisconsin School of Medicine and Public Health, Madison; and Department of Vascular Surgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (Z.L.)
| | - Qiwei Wang
- From the Departments of Surgery (Z.L., S.M., J.R., Q.W., B.L.), Pathology and Laboratory Medicine (B.L.), Biomolecular Chemistry and Medicine (D.S.A., D.F.M.), McArdle Laboratory for Cancer Research (J.Z.), Pediatrics (C.M.S.), and Ophthalmology and Visual Sciences (N.S.), University of Wisconsin School of Medicine and Public Health, Madison; and Department of Vascular Surgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (Z.L.)
| | - Douglas S Annis
- From the Departments of Surgery (Z.L., S.M., J.R., Q.W., B.L.), Pathology and Laboratory Medicine (B.L.), Biomolecular Chemistry and Medicine (D.S.A., D.F.M.), McArdle Laboratory for Cancer Research (J.Z.), Pediatrics (C.M.S.), and Ophthalmology and Visual Sciences (N.S.), University of Wisconsin School of Medicine and Public Health, Madison; and Department of Vascular Surgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (Z.L.)
| | - Deane F Mosher
- From the Departments of Surgery (Z.L., S.M., J.R., Q.W., B.L.), Pathology and Laboratory Medicine (B.L.), Biomolecular Chemistry and Medicine (D.S.A., D.F.M.), McArdle Laboratory for Cancer Research (J.Z.), Pediatrics (C.M.S.), and Ophthalmology and Visual Sciences (N.S.), University of Wisconsin School of Medicine and Public Health, Madison; and Department of Vascular Surgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (Z.L.)
| | - Jing Zhang
- From the Departments of Surgery (Z.L., S.M., J.R., Q.W., B.L.), Pathology and Laboratory Medicine (B.L.), Biomolecular Chemistry and Medicine (D.S.A., D.F.M.), McArdle Laboratory for Cancer Research (J.Z.), Pediatrics (C.M.S.), and Ophthalmology and Visual Sciences (N.S.), University of Wisconsin School of Medicine and Public Health, Madison; and Department of Vascular Surgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (Z.L.)
| | - Christine M Sorenson
- From the Departments of Surgery (Z.L., S.M., J.R., Q.W., B.L.), Pathology and Laboratory Medicine (B.L.), Biomolecular Chemistry and Medicine (D.S.A., D.F.M.), McArdle Laboratory for Cancer Research (J.Z.), Pediatrics (C.M.S.), and Ophthalmology and Visual Sciences (N.S.), University of Wisconsin School of Medicine and Public Health, Madison; and Department of Vascular Surgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (Z.L.)
| | - Nader Sheibani
- From the Departments of Surgery (Z.L., S.M., J.R., Q.W., B.L.), Pathology and Laboratory Medicine (B.L.), Biomolecular Chemistry and Medicine (D.S.A., D.F.M.), McArdle Laboratory for Cancer Research (J.Z.), Pediatrics (C.M.S.), and Ophthalmology and Visual Sciences (N.S.), University of Wisconsin School of Medicine and Public Health, Madison; and Department of Vascular Surgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (Z.L.)
| | - Bo Liu
- From the Departments of Surgery (Z.L., S.M., J.R., Q.W., B.L.), Pathology and Laboratory Medicine (B.L.), Biomolecular Chemistry and Medicine (D.S.A., D.F.M.), McArdle Laboratory for Cancer Research (J.Z.), Pediatrics (C.M.S.), and Ophthalmology and Visual Sciences (N.S.), University of Wisconsin School of Medicine and Public Health, Madison; and Department of Vascular Surgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (Z.L.).
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Majeed K, Hamer AW, White SC, Pegg TJ, Wilkins GT, Williams SM, Chen YH, Williams MJA. Prevalence of abdominal aortic aneurysm in patients referred for transthoracic echocardiography. Intern Med J 2015; 45:32-9. [DOI: 10.1111/imj.12592] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 09/21/2014] [Indexed: 12/13/2022]
Affiliation(s)
- K. Majeed
- Department of Cardiology; Dunedin Hospital; Dunedin New Zealand
- Department of Medicine; Dunedin School of Medicine, University of Otago; Dunedin New Zealand
| | - A. W. Hamer
- Department of Cardiology; Nelson Hospital; Nelson New Zealand
| | - S. C. White
- Department of Cardiology; Nelson Hospital; Nelson New Zealand
| | - T. J. Pegg
- Department of Cardiology; Nelson Hospital; Nelson New Zealand
| | - G. T. Wilkins
- Department of Cardiology; Dunedin Hospital; Dunedin New Zealand
- Department of Medicine; Dunedin School of Medicine, University of Otago; Dunedin New Zealand
| | - S. M. Williams
- Department of Medicine; Dunedin School of Medicine, University of Otago; Dunedin New Zealand
| | - Y. H. Chen
- Department of Medicine; Nelson Hospital; Nelson New Zealand
| | - M. J. A. Williams
- Department of Cardiology; Dunedin Hospital; Dunedin New Zealand
- Department of Medicine; Dunedin School of Medicine, University of Otago; Dunedin New Zealand
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Tanweer O, Wilson TA, Metaxa E, Riina HA, Meng H. A comparative review of the hemodynamics and pathogenesis of cerebral and abdominal aortic aneurysms: lessons to learn from each other. J Cerebrovasc Endovasc Neurosurg 2014; 16:335-49. [PMID: 25599042 PMCID: PMC4296046 DOI: 10.7461/jcen.2014.16.4.335] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2014] [Revised: 10/13/2014] [Accepted: 10/29/2014] [Indexed: 12/28/2022] Open
Abstract
OBJECTIVE Cerebral aneurysms (CAs) and abdominal aortic aneurysms (AAAs) are degenerative vascular pathologies that manifest as abnormal dilations of the arterial wall. They arise with different morphologies in different types of blood vessels under different hemodynamic conditions. Although treated as different pathologies, we examine common pathways in their hemodynamic pathogenesis in order to elucidate mechanisms of formation. MATERIALS AND METHODS A systematic review of the literature was performed. Current concepts on pathogenesis and hemodynamics were collected and compared. RESULTS CAs arise as saccular dilations on the cerebral arteries of the circle of Willis under high blood flow, high wall shear stress (WSS), and high wall shear stress gradient (WSSG) conditions. AAAs arise as fusiform dilations on the infrarenal aorta under low blood flow, low, oscillating WSS, and high WSSG conditions. While at opposite ends of the WSS spectrum, they share high WSSG, a critical factor in arterial remodeling. This alone may not be enough to initiate aneurysm formation, but may ignite a cascade of downstream events that leads to aneurysm development. Despite differences in morphology and the structure, CAs and AAAs share many histopathological and biomechanical characteristics. Endothelial cell damage, loss of elastin, and smooth muscle cell loss are universal findings in CAs and AAAs. Increased matrix metalloproteinases and other proteinases, reactive oxygen species, and inflammation also contribute to the pathogenesis of both aneurysms. CONCLUSION Our review revealed similar pathways in seemingly different pathologies. We also highlight the need for cross-disciplinary studies to aid in finding similarities between pathologies.
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Affiliation(s)
- Omar Tanweer
- Department of Neurosurgery, New York University School of Medicine, NY, United States
| | - Taylor A Wilson
- Department of Neurosurgery, New York University School of Medicine, NY, United States
| | - Eleni Metaxa
- Foundation for Research and Technology - Hellas Institute of Applied and Computational Mathematics, Crete, Greece
| | - Howard A Riina
- Department of Neurosurgery, New York University School of Medicine, NY, United States
| | - Hui Meng
- Toshiba Stroke Research Center, University at Buffalo, NY, United States. ; Department of Mechanical and Aerospace Engineering, University at Buffalo, NY, United States. ; Department of Neurosurgery, University at Buffalo, NY, United States
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Hurks R, Vink A, Hoefer IE, de Vries JPP, Schoneveld AH, Schermerhorn ML, den Ruijter HM, Pasterkamp G, Moll FL. Atherosclerotic risk factors and atherosclerotic postoperative events are associated with low inflammation in abdominal aortic aneurysms. Atherosclerosis 2014; 235:632-41. [DOI: 10.1016/j.atherosclerosis.2014.05.928] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2013] [Revised: 05/08/2014] [Accepted: 05/12/2014] [Indexed: 02/03/2023]
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Cronin O, Liu D, Bradshaw B, Iyer V, Buttner P, Cunningham M, Walker PJ, Golledge J. Visceral adiposity is not associated with abdominal aortic aneurysm presence and growth. Vasc Med 2014; 19:272-280. [PMID: 24948557 DOI: 10.1177/1358863x14537883] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Previous studies in rodent models and patients suggest that visceral adipose could play a direct role in the development and progression of abdominal aortic aneurysm (AAA). This study aimed to assess the association of visceral adiposity with AAA presence and growth. This study was a case-control investigation of patients that did (n=196) and did not (n=181) have an AAA who presented to The Townsville Hospital vascular clinic between 2003 and 2012. Cases were patients with AAA (infra-renal aortic diameter >30 mm) and controls were patients with intermittent claudication but no AAA (infra-renal aortic diameter <30 mm). All patients underwent computed tomography angiography (CTA). The visceral to total abdominal adipose volume ratio was estimated from CTAs by assessing total and visceral adipose deposits using an imaging software program. Measurements were assessed for reproducibility by repeat assessments on 15 patients. AAA risk factors were recorded at entry. Forty-five cases underwent two CTAs more than 6 months apart to assess AAA expansion. The association of visceral adiposity with AAA presence and growth was examined using logistic regression. Visceral adipose assessment by CTA was highly reproducible (mean coefficient of variation 1.0%). AAA was positively associated with older age and negatively associated with diabetes. The visceral to total abdominal adipose volume ratio was not significantly associated with AAA after adjustment for other risk factors. Patients with a visceral to total abdominal adipose volume ratio in quartile four had a 1.63-fold increased risk of AAA but with wide confidence intervals (95% CI 0.71-3.70; p=0.248). Visceral adiposity was not associated with AAA growth. In conclusion, this study suggests that visceral adiposity is not specifically associated with AAA presence or growth although larger studies are required to confirm these findings.
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Affiliation(s)
- Oliver Cronin
- Queensland Research Centre for Peripheral Vascular Disease, School of Medicine and Dentistry, James Cook University, Townsville, QLD, Australia
| | - David Liu
- Queensland Research Centre for Peripheral Vascular Disease, School of Medicine and Dentistry, James Cook University, Townsville, QLD, Australia
| | - Barbara Bradshaw
- Queensland Research Centre for Peripheral Vascular Disease, School of Medicine and Dentistry, James Cook University, Townsville, QLD, Australia
| | - Vikram Iyer
- Queensland Research Centre for Peripheral Vascular Disease, School of Medicine and Dentistry, James Cook University, Townsville, QLD, Australia School of Medicine and Centre for Clinical Research, University of Queensland, Brisbane, QLD, Australia
| | - Petra Buttner
- Queensland Research Centre for Peripheral Vascular Disease, School of Medicine and Dentistry, James Cook University, Townsville, QLD, Australia School of Public Health, Tropical Medicine and Rehabilitation Sciences, James Cook University, Townsville, QLD, Australia
| | - Margaret Cunningham
- Queensland Research Centre for Peripheral Vascular Disease, School of Medicine and Dentistry, James Cook University, Townsville, QLD, Australia
| | - Philip J Walker
- Queensland Research Centre for Peripheral Vascular Disease, School of Medicine and Dentistry, James Cook University, Townsville, QLD, Australia School of Medicine and Centre for Clinical Research, University of Queensland, Brisbane, QLD, Australia Department of Vascular Surgery, Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia
| | - Jonathan Golledge
- Queensland Research Centre for Peripheral Vascular Disease, School of Medicine and Dentistry, James Cook University, Townsville, QLD, Australia Department of Vascular and Endovascular Surgery, The Townsville Hospital, Townsville, QLD, Australia
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Moazzam AA, Savvas SN, Amar AP, Ham SW, Panush RS, Clavijo LC. Diffuse aneurysmal disease – A review. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.rvm.2013.11.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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45
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Liu M, Chen Y, Yang X, Zhang L, Zhao T, Zhao B, Jia L, Zhu Y, Gao X, Zhang B, Li X, Xiang R, Han J, Duan Y. DanHong Injection inhibits the development of primary abdominal aortic aneurysms in apoE knockout mice. CHINESE SCIENCE BULLETIN-CHINESE 2014. [DOI: 10.1007/s11434-014-0175-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Wang Q, Ren J, Morgan S, Liu Z, Dou C, Liu B. Monocyte chemoattractant protein-1 (MCP-1) regulates macrophage cytotoxicity in abdominal aortic aneurysm. PLoS One 2014; 9:e92053. [PMID: 24632850 PMCID: PMC3954911 DOI: 10.1371/journal.pone.0092053] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Accepted: 02/17/2014] [Indexed: 11/18/2022] Open
Abstract
Aims In abdominal aortic aneurysm (AAA), macrophages are detected in the proximity of aortic smooth muscle cells (SMCs). We have previously demonstrated in a murine model of AAA that apoptotic SMCs attract monocytes and other leukocytes by producing MCP-1. Here we tested whether infiltrating macrophages also directly contribute to SMC apoptosis. Methods and Results Using a SMC/RAW264.7 macrophage co-culture system, we demonstrated that MCP-1-primed RAWs caused a significantly higher level of apoptosis in SMCs as compared to control macrophages. Next, we detected an enhanced Fas ligand (FasL) mRNA level and membrane FasL protein expression in MCP-1-primed RAWs. Neutralizing FasL blocked SMC apoptosis in the co-culture. In situ proximity ligation assay showed that SMCs exposed to primed macrophages contained higher levels of receptor interacting protein-1 (RIP1)/Caspase 8 containing cell death complexes. Silencing RIP1 conferred apoptosis resistance to SMCs. In the mouse elastase injury model of aneurysm, aneurysm induction increased the level of RIP1/Caspase 8 containing complexes in medial SMCs. Moreover, TUNEL-positive SMCs in aneurysmal tissues were frequently surrounded by CD68+/FasL+ macrophages. Conversely, elastase-treated arteries from MCP-1 knockout mice display a reduction of both macrophage infiltration and FasL expression, which was accompanied by diminished apoptosis of SMCs. Conclusion Our data suggest that MCP-1-primed macrophages are more cytotoxic. MCP-1 appears to modulate macrophage cytotoxicity by increasing the level of membrane bound FasL. Thus, we showed that MCP-1-primed macrophages kill SMCs through a FasL/Fas-Caspase8-RIP1 mediated mechanism.
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Affiliation(s)
- Qiwei Wang
- Division of Vascular Surgery, Department of Surgery, University of Wisconsin-Madison, Wisconsin, United States of America
| | - Jun Ren
- Division of Vascular Surgery, Department of Surgery, University of Wisconsin-Madison, Wisconsin, United States of America
| | - Stephanie Morgan
- Division of Vascular Surgery, Department of Surgery, University of Wisconsin-Madison, Wisconsin, United States of America
| | - Zhenjie Liu
- Division of Vascular Surgery, Department of Surgery, University of Wisconsin-Madison, Wisconsin, United States of America
| | | | - Bo Liu
- Division of Vascular Surgery, Department of Surgery, University of Wisconsin-Madison, Wisconsin, United States of America
- * E-mail:
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Pejkic S, Opacic D, Mutavdzic P, Radmili O, Krstic N, Davidovic L. Chronic complete thrombosis of abdominal aortic aneurysm: An unusual presentation of an unusual complication. Vascular 2014; 23:83-8. [DOI: 10.1177/1708538114523955] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Although mural thrombosis frequently accompanies aneurysmal disease, complete thrombosis is distinctly unusual complication of abdominal aortic aneurysm (AAA). A case study of a patient with chronic, asymptomatic complete thrombosis of a large juxtarenal AAA is presented along with a literature review and discussion of the potential secondary complications, mandating aggressive management of this condition. A 67-year-old man with multiple atherogenic risk factors and unattended complaints consistent with a recent episode of a transient right hemispheric ischemic attack was referred to our clinic with a diagnosis of a thrombosed AAA established by computed tomography. Duplex ultrasonography and aortography confirmed the referral diagnosis and also revealed near occlusion of the left internal carotid artery. The patient underwent a two-stage surgery, with preliminary left-sided carotid endarterectomy followed three days later by an aneurysmectomy and aortobifemoral reconstruction. He had an uncomplicated recovery and was discharged home on postoperative day 7, remaining asymptomatic at the 42-month follow-up. Complete thrombosis is an uncommon presentation of AAA and may be clinically silent. It is frequently associated with other manifestations of generalized atherosclerosis. Radical open repair yields durable result and is the preferred treatment modality.
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Affiliation(s)
- Sinisa Pejkic
- Clinic for Vascular and Endovascular Surgery, Clinical Center of Serbia, Belgrade, Serbia
| | - Dragan Opacic
- Clinic for Vascular and Endovascular Surgery, Clinical Center of Serbia, Belgrade, Serbia
| | - Perica Mutavdzic
- Clinic for Vascular and Endovascular Surgery, Clinical Center of Serbia, Belgrade, Serbia
| | - Oliver Radmili
- Clinic for Vascular and Endovascular Surgery, Clinical Center of Serbia, Belgrade, Serbia
| | - Nevena Krstic
- Clinic for Physical medicine and rehabilitation, Clinical Center of Serbia, Belgrade, Serbia
| | - Lazar Davidovic
- Clinic for Vascular and Endovascular Surgery, Clinical Center of Serbia, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, Serbia
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Figuero E, Lindahl C, Marín MJ, Renvert S, Herrera D, Ohlsson O, Wetterling T, Sanz M. Quantification of periodontal pathogens in vascular, blood, and subgingival samples from patients with peripheral arterial disease or abdominal aortic aneurysms. J Periodontol 2014; 85:1182-93. [PMID: 24502612 DOI: 10.1902/jop.2014.130604] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
BACKGROUND The aim of this investigation is to quantify periodontal pathogens (Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Campylobacter rectus, and Tannerella forsythia) in vascular, blood, and subgingival samples. As a secondary objective, two molecular bacterial identification methods (nested polymerase chain reaction [PCR] and quantitative PCR [qPCR]) are compared. METHODS Seventy consecutive patients provided a vascular lesion, a blood sample, and 36 subgingival samples. Bacterial DNA was extracted, and qPCR was used to determine the prevalence and amounts of the target pathogens in each sample. Nested PCR was performed only in the samples from vascular lesions. Periodontal examination was performed in 42 patients. Mann-Whitney U or χ(2) tests were used to compare microbiologic results according to periodontal diagnosis. RESULTS All targeted periodontal pathogens (A. actinomycetemcomitans, P. gingivalis, T. forsythia, or C. rectus) were detected in subgingival samples, with a prevalence rate of 72.2%, 47.2%, 74.3%, and 82.9%, respectively. In 7.1% and 11.4% of vascular and blood samples, bacterial DNA was detected. One patient was positive for A. actinomycetemcomitans in the three types of samples. No differences were found in the levels of targeted bacteria when comparing patients with and without periodontitis. Prevalence rates obtained with nested PCR were significantly higher than those obtained with qPCR. CONCLUSIONS The presence of A. actinomycetemcomitans was demonstrated in vascular, blood, and subgingival samples in one of 36 patients. These results, although with a very low frequency, may support the hypothesis of a translocation of periodontal pathogens from subgingival microbiota to the bloodstream and then to atheromatous plaques in carotid or other peripheral arteries. Nested PCR is not an adequate method for identifying DNA of periodontal pathogens in low quantities because of the high number of false-negative results.
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Affiliation(s)
- Elena Figuero
- Oral Research Laboratory, Faculty of Odontology, University Complutense, Madrid, Spain
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Li F, Downing BD, Smiley LC, Mund JA, Distasi MR, Bessler WK, Sarchet KN, Hinds DM, Kamendulis LM, Hingtgen CM, Case J, Clapp DW, Conway SJ, Stansfield BK, Ingram DA. Neurofibromin-deficient myeloid cells are critical mediators of aneurysm formation in vivo. Circulation 2013; 129:1213-24. [PMID: 24370551 DOI: 10.1161/circulationaha.113.006320] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
BACKGROUND Neurofibromatosis type 1 (NF1) is a genetic disorder resulting from mutations in the NF1 tumor suppressor gene. Neurofibromin, the protein product of NF1, functions as a negative regulator of Ras activity in circulating hematopoietic and vascular wall cells, which are critical for maintaining vessel wall homeostasis. NF1 patients have evidence of chronic inflammation resulting in the development of premature cardiovascular disease, including arterial aneurysms, which may manifest as sudden death. However, the molecular pathogenesis of NF1 aneurysm formation is unknown. METHOD AND RESULTS With the use of an angiotensin II-induced aneurysm model, we demonstrate that heterozygous inactivation of Nf1 (Nf1(+/-)) enhanced aneurysm formation with myeloid cell infiltration and increased oxidative stress in the vessel wall. Using lineage-restricted transgenic mice, we show that loss of a single Nf1 allele in myeloid cells is sufficient to recapitulate the Nf1(+/-) aneurysm phenotype in vivo. Finally, oral administration of simvastatin or the antioxidant apocynin reduced aneurysm formation in Nf1(+/-) mice. CONCLUSION These data provide genetic and pharmacological evidence that Nf1(+/-) myeloid cells are the cellular triggers for aneurysm formation in a novel model of NF1 vasculopathy and provide a potential therapeutic target.
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Affiliation(s)
- Fang Li
- Department of Pediatrics (F.L., B.D.D., L.C.S., J.A.M., M.R.D., W.K.B., K.N.S., D.M.H., J.C., D.W.C., S.J.C., B.K.S., D.A.I.), Wells Center for Pediatric Research (F.L., B.D.D., L.C.S., J.A.M., M.R.D., W.K.B., K.N.S., D.M.H., J.C., D.W.C., S.J.C., B.K.S., D.A.I.), Department of Biochemistry and Molecular Biology (B.D.D., D.W.C., S.J.C., D.A.I.), Microbiology and Immunology (M.R.D.), Pharmacology and Toxicology (L.M.K.), and Neurology (C.M.H.), Indiana University School of Medicine, Indianapolis, IN
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Abstract
Although cardiovascular disease is widely recognized as the leading cause of death, a lesser known fact is that aortic aneurysm is the 15th leading cause of death over the age of 65 years in the USA. The golden standard of the treatments are invasive interventions either with open surgical repair (OS) or endovascular aneurysm repair (EVAR). The concept of medical treatment is to prevent abdominal aortic aneurysm (AAA) from rupture and avoid surgical treatment by preventing aneurysm enlargement or even reducing aneurysm size. Matrix metalloproteinases (MMP) are structurally related metalloendopeptidases that can degrade the extracellular matrix and is thought to play important roles in AAA. There are many proposed pharmacological treatments including: β-blockers, angiotensin-converting enzyme inhibitor (ACE inhibitors), angiotensin-receptor blocker (ARB), statins, macrolides and, doxycycline, an inhibitor of the MMP. The latter is a potential promising drug as medical treatment for AAA and the Non-invasive Treatment of Abdominal Aortic Aneurysm Clinical Trial (N-TA(3)CT) is currently ongoing in the USA. Here, the pathophysiology and potential medical therapy for AAA will be reviewed.
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Affiliation(s)
- Koji Kurosawa
- Division of Vascular Surgery, Department of Surgery, University of Wisconsin School of Medicine and Public Health
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