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Yi T, Sui Y, Zheng D, Ren X, Lin X, Wu Y, Lin D, Pan Z, Zheng X, Hong G, Wu M, Zeng L, Chen W. Diagnostic Performance of Carotid Ring Sign on CT-Angiography in Internal Carotid True Occlusion. Stroke 2024; 55:1025-1031. [PMID: 38527154 DOI: 10.1161/strokeaha.123.045156] [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: 09/13/2023] [Accepted: 01/24/2024] [Indexed: 03/27/2024]
Abstract
BACKGROUND To differentiate between pseudo occlusion (PO) and true occlusion (TO) of internal carotid artery (ICA) is important in thrombectomy treatment planning for patients with acute ischemic stroke. Although delayed contrast filling has been differentiated carotid PO from TO, its application has been limited by the implementations of multiphasic computed tomography angiography. In this study, we hypothesized that carotid ring sign, which is readily acquired from single-phasic CTA, can sufficiently differentiate carotid TO from PO. METHODS One thousand four hundred and twenty patients with anterior circulation stroke receiving endovascular therapy were consecutively recruited through a hospital- and web-based registry. Two hundred patients with nonvisualization of the proximal ICA were included in the analysis after a retrospective screening. Diagnosis of PO or TO of the cervical segment of ICA was made based on digital subtraction angiography. Diagnostic performances of carotid ring sign on arterial-phasic CTA and delayed contrast filling on multiphasic computed tomography angiography were evaluated and compared. RESULTS One-hundred twelve patients had ICA PO and 88 had TO. Carotid ring sign was more common in patients with TO (70.5% versus 6.3%; P<0.001), whereas delayed contrast filling was more common in PO (94.9% versus 7.7%; P<0.001). The sensitivity and specificity of carotid ring sign in diagnosing carotid TO were 0.70 and 0.94, respectively, whereas sensitivity and specificity of delayed contrast filling was 0.95 and 0.92 in judging carotid PO. CONCLUSIONS Carotid ring sign is a potent imaging marker in diagnosing ICA TO. Carotid ring sign could be complementary to delayed contrast filling sign in differentiating TO from PO, in particular in centers with only single-phasic CTA.
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Affiliation(s)
- Tingyu Yi
- Department of Neurointervention, Zhangzhou Affiliated Hospital of Fujian Medical University, China (T.Y., X.L., Y.W., D.L., Z.P., X.Z., G.H., M.W., L.Z., W.C.)
- Interventional Neuroradiology, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, China (T.Y.)
| | - Yi Sui
- Department of Neurology, Shenyang First People's Hospital, Shenyang Medical College, China (Y.S.)
- Department of Neurology, The First Affiliated Hospital of China Medical University, Shenyang, China (Y.S.)
| | - Dinghuan Zheng
- Department of Neurology, Huian County Hospital, Quanzhou, Fujian, China (D.Z.)
| | - Xinwen Ren
- George Institute for Global Health China (X.R.)
| | - Xiaohui Lin
- Department of Neurointervention, Zhangzhou Affiliated Hospital of Fujian Medical University, China (T.Y., X.L., Y.W., D.L., Z.P., X.Z., G.H., M.W., L.Z., W.C.)
| | - Yanmin Wu
- Department of Neurointervention, Zhangzhou Affiliated Hospital of Fujian Medical University, China (T.Y., X.L., Y.W., D.L., Z.P., X.Z., G.H., M.W., L.Z., W.C.)
| | - Dinglai Lin
- Department of Neurointervention, Zhangzhou Affiliated Hospital of Fujian Medical University, China (T.Y., X.L., Y.W., D.L., Z.P., X.Z., G.H., M.W., L.Z., W.C.)
| | - Zhinan Pan
- Department of Neurointervention, Zhangzhou Affiliated Hospital of Fujian Medical University, China (T.Y., X.L., Y.W., D.L., Z.P., X.Z., G.H., M.W., L.Z., W.C.)
| | - Xiufen Zheng
- Department of Neurointervention, Zhangzhou Affiliated Hospital of Fujian Medical University, China (T.Y., X.L., Y.W., D.L., Z.P., X.Z., G.H., M.W., L.Z., W.C.)
| | - Ganji Hong
- Department of Neurointervention, Zhangzhou Affiliated Hospital of Fujian Medical University, China (T.Y., X.L., Y.W., D.L., Z.P., X.Z., G.H., M.W., L.Z., W.C.)
| | - Meihua Wu
- Department of Neurointervention, Zhangzhou Affiliated Hospital of Fujian Medical University, China (T.Y., X.L., Y.W., D.L., Z.P., X.Z., G.H., M.W., L.Z., W.C.)
| | - Lisan Zeng
- Department of Neurointervention, Zhangzhou Affiliated Hospital of Fujian Medical University, China (T.Y., X.L., Y.W., D.L., Z.P., X.Z., G.H., M.W., L.Z., W.C.)
| | - Wenhuo Chen
- Department of Neurointervention, Zhangzhou Affiliated Hospital of Fujian Medical University, China (T.Y., X.L., Y.W., D.L., Z.P., X.Z., G.H., M.W., L.Z., W.C.)
- Department of Neurology, Fujian Medical University Union Hospital, China (W.C.)
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Ma X, Wang J, Li Z, Zhou X, Liang X, Wang J, Duan Y, Zhao P. Early Assessment of Atherosclerotic Lesions and Vulnerable Plaques in vivo by Targeting Apoptotic Macrophages with AV Nanobubbles. Int J Nanomedicine 2022; 17:4933-4946. [PMID: 36275481 PMCID: PMC9581080 DOI: 10.2147/ijn.s382738] [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: 07/19/2022] [Accepted: 10/03/2022] [Indexed: 11/07/2022] Open
Abstract
Background The early detection of atherosclerotic lesions is particularly important for risk prediction of acute cardiovascular events. Macrophages apoptosis was significantly associated with the degree of AS lesions and especially contributed to plaque vulnerability. In this research, we mainly sought to explore the feasibility of a home-made AV-nanobubbles (NBAV) for visualization of apoptotic macrophages and assessment of atherosclerosis (AS) lesions by contrast-enhanced ultrasound (CEUS) imaging. Methods NBAV were prepared by “Optimized Thin-Film Hydration” and “Biotin-Avidin-Biotin” methods. Then, the characterization and echogenicity of NBAV were measured and analyzed in vitro. The targeting ability of NBAV to ox-LDL–induced apoptotic macrophages was observed by laser scanning confocal microscope. The ApoE−/− mice mode fed with high fat diet were observed by high-frequency ultrasound, microanatomy and oil red O staining. CEUS imaging in vivo was performed on AS plaques with NBAV and NBCtrl injection through the tail vein in turn in ApoE−/− mice. After CEUS imaging, the plaques were confirmed and analyzed by histopathological and immunological assessment. Results The prepared NBAV had a nano-scale size distribution with a low PDI and a negative zeta potential. Moreover, NBAV showed an excellent stability and exhibited a significantly echogenic signal than saline in vitro. In addition, we found that NBAV could target apoptotic macrophages induced by ox-LDL. Compared with NBCtrl, CEUS imaging of NBAV showed strong and sustained echo enhancement in plaque area of aortic arch in vivo. Further research showed that NBAV sensitive plaques presented more significant pathological changes with several vulnerable plaque features and abundant TUNEL-positive area. Conclusion NBAV displayed a sensitive indicator to evaluate apoptotic macrophages, indicating a promising CEUS molecular probe for AS lesions and vulnerable plaques identification.
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Affiliation(s)
- Xiaoju Ma
- Department of Ultrasonic Medicine, Tang Du Hospital, Air Force Medical University, Xi’an, 710038, People’s Republic of China,Ultrasonic Department, Lin Tong Rehabilitation and Convalescent Center, Lintong, 710600, People’s Republic of China
| | - Jia Wang
- Department of Ultrasonic Medicine, Tang Du Hospital, Air Force Medical University, Xi’an, 710038, People’s Republic of China
| | - Zhelong Li
- Department of Ultrasonic Medicine, Tang Du Hospital, Air Force Medical University, Xi’an, 710038, People’s Republic of China
| | - Xueying Zhou
- Ultrasonic Department, Air Force Hospital of Central Theater, Datong, 037006, People’s Republic of China
| | - Xiao Liang
- Department of Ultrasonic Medicine, Tang Du Hospital, Air Force Medical University, Xi’an, 710038, People’s Republic of China
| | - Junyan Wang
- Department of Nuclear Medicine, Tang Du Hospital, Air Force Medical University, Xi’an, 710038, People’s Republic of China
| | - Yunyou Duan
- Department of Ultrasonic Medicine, Tang Du Hospital, Air Force Medical University, Xi’an, 710038, People’s Republic of China
| | - Ping Zhao
- Department of Ultrasonic Medicine, Tang Du Hospital, Air Force Medical University, Xi’an, 710038, People’s Republic of China,Correspondence: Ping Zhao; Yunyou Duan, Email ;
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Guzmán-Oyarzo D, Hernández-Montelongo J, Rosas C, Leal P, Weber H, Alvear M, Salazar LA. Controlled Release of Caffeic Acid and Pinocembrin by Use of nPSi-βCD Composites Improves Their Antiangiogenic Activity. Pharmaceutics 2022; 14:pharmaceutics14030484. [PMID: 35335862 PMCID: PMC8955862 DOI: 10.3390/pharmaceutics14030484] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/09/2022] [Accepted: 02/16/2022] [Indexed: 11/16/2022] Open
Abstract
Although polyphenols have great pharmacological potential, the main disadvantage is that they have low bioavailability at the desired site. Thus, the use of biocompatible systems for drug delivery is a strategy that is currently gaining great interest. The objective of this study is to evaluate the effect of microencapsulation of caffeic acid and pinocembrin on the antioxidant and antiangiogenic activity of both polyphenols, by the use of nPSi-βCD composite microparticles. For this HUVEC, cells were exposed to H2O2 and to treatments with polyphenols in solution and loaded in the composite microparticle. The polyphenols were incorporated into a microparticle using nanoporous silicon, chitosan and a β-cyclodextrin polymer as the biomaterial. The evaluation of the antiangiogenic effect of the treatments with polyphenols in solution and microencapsulated was carried out through functional tests, and the changes in the expression of target genes associated with the antioxidant pathway and angiogenesis was performed through qPCR. The results obtained show that the caffeic acid and pinocembrin have an antioxidant and antiangiogenic activity, both in solution as microencapsulated. In the caffeic acid, a greater biological effect was observed when it was incorporated into the nPSi-βCD composite microparticle. Our results suggest that the nPSi-βCD composite microparticle could be used as an alternative oral drug administration system.
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Affiliation(s)
- Dina Guzmán-Oyarzo
- Center of Molecular Biology and Pharmacogenetics, Department of Basic Sciences, Scientific and Technological Bioresource Nucleus (BIOREN-UFRO), Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco 4811230, Chile;
- Escuela de Tecnología Médica, Facultad de Ciencias de la Salud, Universidad San Sebastián, General Cruz 1577, Concepción 4030000, Chile
| | - Jacobo Hernández-Montelongo
- Bioproducts and Advanced Materials Research Center (BioMA), Faculty of Engineering, Universidad Católica de Temuco, Avenida Rudecindo Ortega 02950, Temuco 4813302, Chile;
- Department of Physical and Mathematical Sciences, Faculty of Engineering, Universidad Católica de Temuco, Temuco 4813302, Chile
| | - Carlos Rosas
- Escuela de Medicina, Facultad de Medicina y Ciencia, Universidad San Sebastián, General Lagos 1163, Valdivia 5110693, Chile;
| | - Pamela Leal
- Center of Excellence in Translational Medicine (CETM) and Scientific and Technological Bioresource Nucleus (BIOREN-UFRO), Universidad de La Frontera, Temuco 4810296, Chile; (P.L.); (H.W.)
- Department of Agricultural Sciences and Natural Resources, Faculty of Agricultural and Forestry Science, Universidad de La Frontera, Temuco 4810296, Chile
| | - Helga Weber
- Center of Excellence in Translational Medicine (CETM) and Scientific and Technological Bioresource Nucleus (BIOREN-UFRO), Universidad de La Frontera, Temuco 4810296, Chile; (P.L.); (H.W.)
| | - Marysol Alvear
- Department of Chemical Sciences and Natural Resources, Faculty of Engineering and Sciences, Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco 4811230, Chile;
| | - Luis A. Salazar
- Center of Molecular Biology and Pharmacogenetics, Department of Basic Sciences, Scientific and Technological Bioresource Nucleus (BIOREN-UFRO), Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco 4811230, Chile;
- Correspondence: ; Tel.: +56-45-259-6724
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Yang X, Wang L, Zhang Z, Hu J, Liu X, Wen H, Liu M, Zhang X, Dai H, Ni M, Li R, Guo R, Zhang L, Luan X, Lin H, Dong M, Lu H. Ginsenoside Rb 1 Enhances Plaque Stability and Inhibits Adventitial Vasa Vasorum via the Modulation of miR-33 and PEDF. Front Cardiovasc Med 2021; 8:654670. [PMID: 34124194 PMCID: PMC8192703 DOI: 10.3389/fcvm.2021.654670] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 04/20/2021] [Indexed: 01/25/2023] Open
Abstract
Background: Atherosclerosis is closely associated with proliferation of the adventitial vasa vasorum, leading to the atherosclerotic plaque progression and vulnerability. In this report, we investigated the role of Ginsenoside Rb1 (Rb1) on atherosclerotic plaque stabilization and adventitial vasa vasorum (VV) along with the mechanisms involved. Methods and Results: Apolipoprotein E-deficient (ApoE-/-) mice were fed with a high-fat diet for 20 weeks, and then Ginsenoside Rb1 (50 mg/kg/d, intraperitoneal) was given for 4 weeks. Rb1 treatment significantly inhibited adventitial VV proliferation, alleviated inflammation, decreased plaque burden, and stabilized atherosclerotic plaques in apoE-/- mice. However, the beneficial effects of Rb1 on atherosclerotic lesion was attenuated by overexpression of miR-33. The analysis from atherosclerotic plaque revealed that Rb1 treatment could result in an induction of Pigment epithelium-derived factor (PEDF) expression and reduction of the miR-33 generation. Overexpression of miR-33 significantly reverted the Rb1-mediated elevation of PEDF and anti-angiogenic effect. Conclusions: Ginsenoside Rb1 attenuates plaque growth and enhances plaque stability partially through inhibiting adventitial vasa vasorum proliferation and inflammation in apoE-/- mice. The anti-angiogenic and anti-inflammation effects of Rb1 are exerted via the modulation of miR-33 and its target gene PEDF.
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Affiliation(s)
- Xiaoyan Yang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Department of Cardiology, Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, China
| | - Lei Wang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Zihao Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jiayi Hu
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xiaoling Liu
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Hao Wen
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,The Second School of Clinical Medicine, Binzhou Medical University, Yantai, China
| | - Minghao Liu
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xue Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Department of Cardiology, Qingdao Municipal Hospital, Qingdao, China
| | - Hongyan Dai
- Department of Cardiology, Qingdao Municipal Hospital, Qingdao, China
| | - Mei Ni
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Rui Li
- Department of Cardiology, China-Japan Friendship Hospital, Ministry of Health, Beijing, China
| | - Rong Guo
- Department of Cardiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Lei Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xiaorong Luan
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Huili Lin
- Department of Cardiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Mei Dong
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Huixia Lu
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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Wang R, Weng L, Li M. Effect of vasa vasorum in cerebrovascular compensation: 2 case reports. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:508. [PMID: 32395552 PMCID: PMC7210153 DOI: 10.21037/atm.2020.03.77] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Intracranial vasa vasorum (VV) are rare and develop predominantly in the proximal segments of the internal carotid artery (ICA) and vertebral artery (VA). The typical appearance of intracranial VV has not yet been reported in clinical practice. Although VV in the ICA have been found to re-institute the collateral flow, bypassing the obstructive segment, far less attention has been paid to the manner in which VV can connect the two ends of the obstructive segment through the plaque. In this study, we present two cases and discuss the positive effects of VV. In our first case, a patient with basilar artery (BA) occlusion and multiple infarcts in the posterior circulation territory received endovascular treatment. Digital subtraction angiography (DSA) showed the existence of VV, which originated from the proximal BA lumen, penetrated through the vessel wall, bypassed the obstructive segment, re-penetrated through the vessel wall, and reconnected to the distal BA lumen. Balloon angioplasty was performed, specifically avoiding the path of the VV, then the VV had disappeared in follow-up angiography. In our second case, a patient who had been diagnosed with occlusion in the initial segment of the left ICA two years ago suffered a stroke. DSA revealed that the VV collaterals penetrated directly through the plaque of obstructive site and reconnected to the distal vessel lumen, which caused low hemodynamic compensation. Angioplasty was performed directly following the VV path, then follow-up angiography showed the VV had disappeared. Arterial occlusion, including in the intracranial and extracranial artery, could trigger the occurrence of VV, which can improve downstream perfusion. VV also could play a role of signal light in endovascular treatment.
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Affiliation(s)
- Rongfei Wang
- Brain Center, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510120, China
| | - Luankun Weng
- Brain Center, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510120, China
| | - Mengzhen Li
- Brain Center, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510120, China
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Halimulati M, Duman B, Nijiati J, Aizezi A. Long noncoding RNA TCONS_00024652 regulates vascular endothelial cell proliferation and angiogenesis via microRNA-21. Exp Ther Med 2018; 16:3309-3316. [PMID: 30233677 PMCID: PMC6143905 DOI: 10.3892/etm.2018.6594] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 01/19/2018] [Indexed: 01/02/2023] Open
Abstract
Acute coronary syndrome caused by the rupture of atherosclerotic plaques is one of the primary causes of major cardiovascular events, and neovascularization within the plaque is closely associated with its stability. Long noncoding RNA (lncRNAs) is a type of noncoding RNA that serves a crucial role in regulating vascular endothelial cells (VECs). The aim of the present study was to investigate the effect of lncRNA TCONS_00024652 on the proliferation and angiogenesis of VECs following stimulation with TNF-α. The expression of lncRNA and miRNA was measured in human umbilical vein endothelial cells (HUVECs) by reverse transcription-quantitative polymerase chain reaction. Cell proliferation was measured using a Cell Counting Kit-8 assay. Wound healing and tube formation assays were performed to determine cell migration and angiogenesis. Interactions between TCONS_00024652 and miR-21 were determined using bioinformatics and a dual-luciferase reporter assay. The results demonstrated that TCONS_00024652 is highly expressed in TNF-α-induced HUVECs. Functional assays demonstrated that the dysregulated expression of TCONS_00024652 promotes endothelial cell proliferation and angiogenesis, whereas TCONS_00024652 knockdown induces the opposite effects. Bioinformatics analysis using starBase predicted putative binding at the 3′-untranslated region of TCONS_00024652 and miR-21 and luciferase reporter assays further verified this interaction. The results of the present study suggest that the targeting of TCONS_00024652 by miR-21 may be a potential method of improving vascular endothelial dysfunction, neovascularization maturation and plaque stabilization.
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Affiliation(s)
- Muertiza Halimulati
- Department of Vascular and Thyroid Surgery, Center of Digestive and Vascular Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China
| | - Bagedati Duman
- Department of Vascular and Thyroid Surgery, Center of Digestive and Vascular Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China
| | - Julaiti Nijiati
- Department of Vascular and Thyroid Surgery, Center of Digestive and Vascular Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China
| | - Abudoureyimu Aizezi
- Department of Vascular and Thyroid Surgery, Center of Digestive and Vascular Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China
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Rico-Jimenez JJ, Campos-Delgado DU, Villiger M, Otsuka K, Bouma BE, Jo JA. Automatic classification of atherosclerotic plaques imaged with intravascular OCT. BIOMEDICAL OPTICS EXPRESS 2016; 7:4069-4085. [PMID: 27867716 PMCID: PMC5102521 DOI: 10.1364/boe.7.004069] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 09/09/2016] [Accepted: 09/12/2016] [Indexed: 05/24/2023]
Abstract
Intravascular optical coherence tomography (IV-OCT) allows evaluation of atherosclerotic plaques; however, plaque characterization is performed by visual assessment and requires a trained expert for interpretation of the large data sets. Here, we present a novel computational method for automated IV-OCT plaque characterization. This method is based on the modeling of each A-line of an IV-OCT data set as a linear combination of a number of depth profiles. After estimating these depth profiles by means of an alternating least square optimization strategy, they are automatically classified to predefined tissue types based on their morphological characteristics. The performance of our proposed method was evaluated with IV-OCT scans of cadaveric human coronary arteries and corresponding tissue histopathology. Our results suggest that this methodology allows automated identification of fibrotic and lipid-containing plaques. Moreover, this novel computational method has the potential to enable high throughput atherosclerotic plaque characterization.
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Affiliation(s)
- Jose J. Rico-Jimenez
- Department of Biomedical Engineering, Texas A & M University, College Station, TX,
USA
| | | | - Martin Villiger
- Wellman Center for Photomedicine, Harvard Medical School and Massachusetts General Hospital, Boston, MA,
USA
| | - Kenichiro Otsuka
- Wellman Center for Photomedicine, Harvard Medical School and Massachusetts General Hospital, Boston, MA,
USA
| | - Brett E. Bouma
- Wellman Center for Photomedicine, Harvard Medical School and Massachusetts General Hospital, Boston, MA,
USA
| | - Javier A. Jo
- Department of Biomedical Engineering, Texas A & M University, College Station, TX,
USA
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Xu J, Lu X, Shi GP. Vasa vasorum in atherosclerosis and clinical significance. Int J Mol Sci 2015; 16:11574-608. [PMID: 26006236 PMCID: PMC4463718 DOI: 10.3390/ijms160511574] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 05/11/2015] [Indexed: 12/12/2022] Open
Abstract
Atherosclerosis is a chronic inflammatory disease that leads to several acute cardiovascular complications with poor prognosis. For decades, the role of the adventitial vasa vasorum (VV) in the initiation and progression of atherosclerosis has received broad attention. The presence of VV neovascularization precedes the apparent symptoms of clinical atherosclerosis. VV also mediates inflammatory cell infiltration, intimal thickening, intraplaque hemorrhage, and subsequent atherothrombosis that results in stroke or myocardial infarction. Intraplaque neovessels originating from VV can be immature and hence susceptible to leakage, and are thus regarded as the leading cause of intraplaque hemorrhage. Evidence supports VV as a new surrogate target of atherosclerosis evaluation and treatment. This review provides an overview into the relationship between VV and atherosclerosis, including the anatomy and function of VV, the stimuli of VV neovascularization, and the available underlying mechanisms that lead to poor prognosis. We also summarize translational researches on VV imaging modalities and potential therapies that target VV neovascularization or its stimuli.
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Affiliation(s)
- Junyan Xu
- Second Clinical Medical College, Zhujiang Hospital and Southern Medical University, Guangzhou 510280, China.
| | - Xiaotong Lu
- Second Clinical Medical College, Zhujiang Hospital and Southern Medical University, Guangzhou 510280, China.
| | - Guo-Ping Shi
- Second Clinical Medical College, Zhujiang Hospital and Southern Medical University, Guangzhou 510280, China.
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA.
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Coronary CT angiography in the quantitative assessment of coronary plaques. BIOMED RESEARCH INTERNATIONAL 2014; 2014:346380. [PMID: 25162010 PMCID: PMC4138793 DOI: 10.1155/2014/346380] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Accepted: 07/17/2014] [Indexed: 01/31/2023]
Abstract
Coronary computed tomography angiography (CCTA) has been recently evaluated for its ability to assess coronary plaque characteristics, including plaque composition. Identification of the relationship between plaque composition by CCTA and patient clinical presentations may provide insight into the pathophysiology of coronary artery plaque, thus assisting identification of vulnerable plaques which are associated with the development of acute coronary syndrome. CCTA-generated 3D visualizations allow evaluation of both coronary lesions and lumen changes, which are considered to enhance the diagnostic performance of CCTA. The purpose of this review is to discuss the recent developments that have occurred in the field of CCTA with regard to its diagnostic accuracy in the quantitative assessment of coronary plaques, with a focus on the characterization of plaque components and identification of vulnerable plaques.
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