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Dai F, Hu C, Li X, Zhang Z, Wang H, Zhou W, Wang J, Geng Q, Dong Y, Tang C. Cav3.2 channel regulates cerebral ischemia/reperfusion injury: a promising target for intervention. Neural Regen Res 2024; 19:2480-2487. [PMID: 38526284 DOI: 10.4103/1673-5374.390966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 10/25/2023] [Indexed: 03/26/2024] Open
Abstract
JOURNAL/nrgr/04.03/01300535-202419110-00028/figure1/v/2024-03-08T184507Z/r/image-tiff Calcium influx into neurons triggers neuronal death during cerebral ischemia/reperfusion injury. Various calcium channels are involved in cerebral ischemia/reperfusion injury. Cav3.2 channel is a main subtype of T-type calcium channels. T-type calcium channel blockers, such as pimozide and mibefradil, have been shown to prevent cerebral ischemia/reperfusion injury-induced brain injury. However, the role of Cav3.2 channels in cerebral ischemia/reperfusion injury remains unclear. Here, in vitro and in vivo models of cerebral ischemia/reperfusion injury were established using middle cerebral artery occlusion in mice and high glucose hypoxia/reoxygenation exposure in primary hippocampal neurons. The results showed that Cav3.2 expression was significantly upregulated in injured hippocampal tissue and primary hippocampal neurons. We further established a Cav3.2 gene-knockout mouse model of cerebral ischemia/reperfusion injury. Cav3.2 knockout markedly reduced infarct volume and brain water content, and alleviated neurological dysfunction after cerebral ischemia/reperfusion injury. Additionally, Cav3.2 knockout attenuated cerebral ischemia/reperfusion injury-induced oxidative stress, inflammatory response, and neuronal apoptosis. In the hippocampus of Cav3.2-knockout mice, calcineurin overexpression offset the beneficial effect of Cav3.2 knockout after cerebral ischemia/reperfusion injury. These findings suggest that the neuroprotective function of Cav3.2 knockout is mediated by calcineurin/nuclear factor of activated T cells 3 signaling. Findings from this study suggest that Cav3.2 could be a promising target for treatment of cerebral ischemia/reperfusion injury.
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Affiliation(s)
- Feibiao Dai
- Graduate School, Wannan Medical College, Wuhu, Anhui Province, China
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, China
- Core Facility Center for Medical Sciences, The First Affiliated Hospital of USTC (Anhui Provincial Hospital), Hefei, Anhui Province, China
| | - Chengyun Hu
- Graduate School, Wannan Medical College, Wuhu, Anhui Province, China
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, China
- Core Facility Center for Medical Sciences, The First Affiliated Hospital of USTC (Anhui Provincial Hospital), Hefei, Anhui Province, China
| | - Xue Li
- Graduate School, Wannan Medical College, Wuhu, Anhui Province, China
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, China
- Core Facility Center for Medical Sciences, The First Affiliated Hospital of USTC (Anhui Provincial Hospital), Hefei, Anhui Province, China
| | - Zhetao Zhang
- Core Facility Center for Medical Sciences, The First Affiliated Hospital of USTC (Anhui Provincial Hospital), Hefei, Anhui Province, China
- Department of Pharmacy, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, China
| | - Hongtao Wang
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, China
- Core Facility Center for Medical Sciences, The First Affiliated Hospital of USTC (Anhui Provincial Hospital), Hefei, Anhui Province, China
| | - Wanjun Zhou
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, China
- Core Facility Center for Medical Sciences, The First Affiliated Hospital of USTC (Anhui Provincial Hospital), Hefei, Anhui Province, China
| | - Jiawu Wang
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, China
- Core Facility Center for Medical Sciences, The First Affiliated Hospital of USTC (Anhui Provincial Hospital), Hefei, Anhui Province, China
| | - Qingtian Geng
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, China
- Core Facility Center for Medical Sciences, The First Affiliated Hospital of USTC (Anhui Provincial Hospital), Hefei, Anhui Province, China
| | - Yongfei Dong
- Core Facility Center for Medical Sciences, The First Affiliated Hospital of USTC (Anhui Provincial Hospital), Hefei, Anhui Province, China
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, China
| | - Chaoliang Tang
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, China
- Core Facility Center for Medical Sciences, The First Affiliated Hospital of USTC (Anhui Provincial Hospital), Hefei, Anhui Province, China
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Tang C, Mercelis B, Zhang F, Mocquot C, Nakanishi K, Yoshihara K, Peumans M, Van Meerbeek B. Filler Mixed Into Adhesives Does Not Necessarily Improve Their Mechanical Properties. Oper Dent 2024:500011. [PMID: 38632849 DOI: 10.2341/23-106-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/15/2023] [Indexed: 04/19/2024]
Abstract
OBJECTIVES To investigate the influence of filler type/loading on the micro-tensile fracture strength (μTFS) of adhesive resins, as measured 'immediately' upon preparation and after 1-week water storage ('water-stored'). METHODS The morphology and particle-size distribution of three filler particles, referred to as 'Glass-S' (Esschem Europe), 'BioUnion' (GC), and 'CPC_Mont', were correlatively characterized by SEM, TEM, and particle-size analysis. These filler particles were incorporated into an unfilled adhesive resin ('BZF-29unfilled', GC) in different concentrations to measure the 'immediate' μTFS. After 1-week water storage, the 'water-stored' μTFS of the experimental particle-filled adhesive resins with the most optimum filler loading, specific for each filler type, was measured. In addition, the immediate and water-stored μTFS of the adhesive resins of three experimental two-step universal adhesives based on the same resin matrix but varying for filler type/loading, coded as 'BZF-21' (containing silica and bioglass), 'BZF-29' (containing solely silica), and 'BZF-29_hv' (highly viscous with a higher silica loading than BZF-29), and of the adhesive resins of the gold-standard adhesives OptiBond FL ('Opti-FL', Kerr) and Clearfil SE Bond 2 ('C-SE2', Kuraray Noritake) was measured along with that of BZF-29unfilled (GC) serving as control/reference. Statistics involved one-way and two-way ANOVA followed by post-hoc multiple comparisons (α<0.05). RESULTS Glass-S, BioUnion, and CPC_Mont represent irregular fillers with an average particle size of 8.5-9.9 μm. Adding filler to BZF-29unfilled decreased μTFS regardless of filler type/loading. One-week water storage reduced μTFS of all adhesive resins except BZF-21, with the largest reduction in μTFS recorded for BZF-29unfilled. Among the three filler types, the μTFS of the 30 wt% Glass-S and 20 wt% BioUnion filled adhesive resin was not significantly different from the μTFS of BZF-29unfilled upon water storage. CONCLUSIONS Adding filler particles into adhesive resin did not enhance its micro-tensile fracture strength but appeared to render it less sensitive to water storage as compared to the unfilled adhesive resin investigated.
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Affiliation(s)
- C Tang
- Chuliang Tang, KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT, Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium
| | - B Mercelis
- Ben Mercelis, KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT, Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium
| | - F Zhang
- Fei Zhang, KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT, Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium; KU Leuven (University of Leuven), Department of Materials Engineering, Leuven, Belgium; 3Université Lyon 1, Laboratoire des Multimatériaux et Interfaces, Villeurbanne, France
| | - C Mocquot
- Caroline Mocquot, Université Lyon 1, Laboratoire des Multimatériaux et Interfaces, Villeurbanne, France; Université Paris Cité, Faculté dentaire, Hôpital Rothschild, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - K Nakanishi
- Ko Nakanishi, KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT, Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium; Hokkaido University, Faculty of Dental Medicine, Department of Biomaterials and Bioengineering, Sapporo, Japan
| | - K Yoshihara
- Kumiko Yoshihara, National Institute of Advanced Industrial Science and Technology (AIST), Health and Medical Research Institute, Kagawa, Japan; Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Department of Pathology & Experimental Medicine, Okayama, Japan
| | - M Peumans
- Marleen Peumans, KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT, Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium
| | - B Van Meerbeek
- *Bart Van Meerbeek, KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT, Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium
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Lv A, BianBaZhuoMa, DeQiong, DaWaZhuoMa, PuBuZhuoMa, Yao D, LangJiQuZhen, Lu Y, Cai L, DaZhen, Tang C, BianBaZhuoMa, Zhang Y, Yin J, Ding T, DaWaCang, Wu M, Chen Y, Li Y. Effect of COVID-19 infection on pregnant women in plateau regions. Public Health 2024; 229:57-62. [PMID: 38401193 DOI: 10.1016/j.puhe.2023.12.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 12/04/2023] [Accepted: 12/28/2023] [Indexed: 02/26/2024]
Abstract
OBJECTIVE The present study aims to explore the effect of COVID-19 infection on pregnant women in plateau regions. STUDY DESIGN Data from 381 pregnant women infected with COVID-19 who underwent prenatal examination or treatment at Women and Children's Hospital of Tibet Autonomous Region between January 2020 and December 2022 and 314 pregnant women not infected with COVID-19 were retrospectively collected. METHODS The study participants were divided into an infected and non-infected group according to whether they were infected with COVID-19. Basic information (ethnicity, age, body mass index and gestational age [GA]), vaccination status, intensive care unit (ICU) admission and delivery outcomes were compared. Binary logistic regression was used to analyse the influencing factors of ICU admission. RESULTS The results revealed significant differences in the GA, vaccination rate, blood pressure, partial pressure of oxygen, white blood cell (WBC) count, ICU admission rate, preeclampsia rate, forearm presentation rate, thrombocytopenia rate, syphilis infection rate and placental abruption rate between the two groups (P < 0.05). A univariate analysis showed that COVID-19 infection, hepatitis B virus infection, the WBC count and hypoproteinaemia were risk factors for ICU admission. The results of the multivariate analysis of the ICU admission of pregnant women showed that COVID-19 infection (odds ratio [OR] = 4.271, 95 % confidence interval [CI]: 3.572-5.820, P < 0.05) was a risk factor for ICU admission and the WBC count (OR = 0.935, 95 % CI: 0.874-0.947, P < 0.05) was a protective factor for ICU admission. CONCLUSION Pregnant women are vulnerable to the adverse consequences of COVID-19 infection, and public health measures such as vaccination are needed to protect this population subgroup.
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Affiliation(s)
- A Lv
- Department of Obstetrics and Gynecology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, NO. 1 DaHua Road, Dong Dan, Beijing, 100730, PR China; Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - BianBaZhuoMa
- Lhasa People's Hospital, No. 1, Beijing Middle Road, Chengguan District, Lhasa, Tibet Autonomous Region, 850000, PR China
| | - DeQiong
- Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - DaWaZhuoMa
- Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - PuBuZhuoMa
- Lhasa People's Hospital, No. 1, Beijing Middle Road, Chengguan District, Lhasa, Tibet Autonomous Region, 850000, PR China
| | - D Yao
- Nyingchi People's Hospital, No. 11, Water Garden, Bayi Town, Bayi District, Nyingchi City, Tibet Autonomous Region, 860000, PR China
| | - LangJiQuZhen
- Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - Y Lu
- Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - L Cai
- Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - DaZhen
- Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - C Tang
- Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - BianBaZhuoMa
- Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - Y Zhang
- Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - J Yin
- Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - T Ding
- Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - DaWaCang
- Tibet University Medical School, No. 10, Zangda East Road, Chengguan District, Lhasa, Tibet Autonomous Region, 850000, PR China
| | - M Wu
- Tibet University Medical School, No. 10, Zangda East Road, Chengguan District, Lhasa, Tibet Autonomous Region, 850000, PR China
| | - Y Chen
- Tibet University Medical School, No. 10, Zangda East Road, Chengguan District, Lhasa, Tibet Autonomous Region, 850000, PR China
| | - Y Li
- Department of Obstetrics and Gynecology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, NO. 1 DaHua Road, Dong Dan, Beijing, 100730, PR China.
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Hu C, Yuan X, Zhao R, Hong B, Chen C, Zhu Q, Zheng Y, Hu J, Yuan Y, Wu Z, Zhang J, Tang C. Scale-Up Preparation of Manganese-Iron Prussian Blue Nanozymes as Potent Oral Nanomedicines for Acute Ulcerative Colitis. Adv Healthc Mater 2024:e2400083. [PMID: 38447228 DOI: 10.1002/adhm.202400083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/04/2024] [Indexed: 03/08/2024]
Abstract
Prussian blue (PB) nanozymes are demonstrated as effective therapeutics for ulcerative colitis (UC), yet an unmet practical challenge remains in the scalable production of these nanozymes and uncertainty over their efficacy. With a novel approach, a series of porous manganese-iron PB (MnPB) colloids, which are shown to be efficient scavengers for reactive oxygen species (ROS) including hydroxyl radical, superoxide anion, and hydrogen peroxide, are prepared. In vitro cellular experiments confirm the capability of the nanozyme to protect cells from ROS attack. In vivo, the administration of MnPB nanozyme through gavage at a dosage of 10 mg kg-1 per day for three doses in total potently ameliorates the pathological symptoms of acute UC in a murine model, resulting in mitigated inflammatory responses and improved viability rate. Significantly, the nanozyme produced at a large scale can be achieved at an unprecedented yield weighting ≈11 g per batch of reaction, demonstrating comparable anti-ROS activities and treatment efficacy to its small-scale counterpart. This work represents the first demonstration of the scale-up preparation of PB analog nanozymes for UC without compromising treatment efficacy, laying the foundation for further testing of these nanozymes on larger animals and promising clinical translation.
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Affiliation(s)
- Chengyun Hu
- Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, China
| | - Xue Yuan
- Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Ronghua Zhao
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Biao Hong
- College & Hospital of Stomatology, Anhui Provincial Key Laboratory of Oral Diseases Research, Anhui Medical University, Hefei, 230032, China
| | - Chuang Chen
- Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Qingjun Zhu
- Anhui Provincial Key Laboratory of High Magnetic Resonance Image, High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
| | - Yanmin Zheng
- Anhui Provincial Key Laboratory of High Magnetic Resonance Image, High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
| | - Jinming Hu
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Yue Yuan
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Zhengyan Wu
- Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Jia Zhang
- Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Chaoliang Tang
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, China
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Ma L, Zhu X, Tang C, Pan P, Yadav A, Liang R, Press K, Nelson J, Su H. CNS resident macrophages enhance dysfunctional angiogenesis and circulating monocytes infiltration in brain arteriovenous malformation. J Cereb Blood Flow Metab 2024:271678X241236008. [PMID: 38415628 DOI: 10.1177/0271678x241236008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Myeloid immune cells are abundant in both ruptured and unruptured brain arteriovenous malformations (bAVMs). The role of central nervous system (CNS) resident and circulating monocyte-derived macrophages in bAVM pathogenesis has not been fully understood. We hypothesize that CNS resident macrophages enhance bAVM development and hemorrhage. RNA sequencing using cultured endothelial cells (ECs) and mouse bAVM samples revealed that downregulation of two bAVM causative genes, activin-like kinase 1 (ALK1) or endoglin, increased inflammation and innate immune signaling. To understand the role of CNS resident macrophages in bAVM development and hemorrhage, we administrated a colony-stimulating factor 1 receptor inhibitor to bAVM mice with brain focal Alk1 deletion. Transient depletion of CNS resident macrophages at an early stage of bAVM development mitigated the phenotype severity of bAVM, including a prolonged inhibition of angiogenesis, dysplastic vasculature formation, and infiltration of CNS resident and circulating monocyte-derived macrophages during bAVM development. Transient depletion of CNS resident macrophages increased EC tight junction protein expression, reduced the number of dysplasia vessels and severe hemorrhage in established bAVMs. Thus, EC AVM causative gene mutation can activate CNS resident macrophages promoting bAVM progression. CNS resident macrophage could be a therapeutic target to mitigate the development and severity of bAVMs.
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Affiliation(s)
- Li Ma
- Center for Cerebrovascular Research, University of California, San Francisco, California, USA
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, California, USA
| | - Xiaonan Zhu
- Center for Cerebrovascular Research, University of California, San Francisco, California, USA
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, California, USA
| | - Chaoliang Tang
- Center for Cerebrovascular Research, University of California, San Francisco, California, USA
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, California, USA
| | - Peipei Pan
- Center for Cerebrovascular Research, University of California, San Francisco, California, USA
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, California, USA
| | - Alka Yadav
- Center for Cerebrovascular Research, University of California, San Francisco, California, USA
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, California, USA
| | - Rich Liang
- Center for Cerebrovascular Research, University of California, San Francisco, California, USA
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, California, USA
| | - Kelly Press
- Center for Cerebrovascular Research, University of California, San Francisco, California, USA
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, California, USA
| | - Jeffrey Nelson
- Center for Cerebrovascular Research, University of California, San Francisco, California, USA
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, California, USA
| | - Hua Su
- Center for Cerebrovascular Research, University of California, San Francisco, California, USA
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, California, USA
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Shabani Z, Schuerger J, Zhu X, Tang C, Ma L, Yadav A, Liang R, Press K, Weinsheimer S, Schmidt A, Wang C, Sekhar A, Nelson J, Kim H, Su H. Increased Collagen I/Collagen III Ratio Is Associated with Hemorrhage in Brain Arteriovenous Malformations in Human and Mouse. Cells 2024; 13:92. [PMID: 38201296 PMCID: PMC10778117 DOI: 10.3390/cells13010092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/23/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024] Open
Abstract
Background: The increase in the collagen I (COL I)/COL III ratio enhances vessel wall stiffness and renders vessels less resistant to blood flow and pressure changes. Activated microglia enhance inflammation-induced fibrosis. Hypotheses: The COL I/COL III ratio in human and mouse brain arteriovenous malformations (bAVMs) is associated with bAVM hemorrhage, and the depletion of microglia decreases the COL I/COL III ratio and hemorrhage. Method: COL I, COL III, and hemorrhages were analyzed in 12 human bAVMs and 6 control brains, and mouse bAVMs induced in three mouse lines with activin receptor-like kinase 1 (n = 7) or endoglin (n = 7) deleted in the endothelial cells or brain focally (n = 5). The controls for the mouse study were no-gene-deleted litter mates. Mouse bAVMs were used to test the relationships between the Col I/Col III ratio and hemorrhage and whether the transient depletion of microglia reduces the Col I/Col III ratio and hemorrhage. Results: The COL I/COL III ratio was higher in the human and mouse bAVMs than in controls. The microhemorrhage in mouse bAVMs was positively correlated with the Col I/Col III ratio. Transient depletion of microglia reduced the Col I/Col III ratio and microhemorrhage. Conclusions: The COL I/COL III ratio in the bAVMs was associated with bAVM hemorrhage. The depletion of microglia reduced the bAVM Col I/Col III ratio and hemorrhage.
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Affiliation(s)
- Zahra Shabani
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA; (Z.S.); (J.S.); (X.Z.); (C.T.); (L.M.); (A.Y.); (R.L.); (K.P.); (S.W.); (A.S.); (C.W.); (A.S.); (J.N.); (H.K.)
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA
| | - Joana Schuerger
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA; (Z.S.); (J.S.); (X.Z.); (C.T.); (L.M.); (A.Y.); (R.L.); (K.P.); (S.W.); (A.S.); (C.W.); (A.S.); (J.N.); (H.K.)
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA
| | - Xiaonan Zhu
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA; (Z.S.); (J.S.); (X.Z.); (C.T.); (L.M.); (A.Y.); (R.L.); (K.P.); (S.W.); (A.S.); (C.W.); (A.S.); (J.N.); (H.K.)
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA
| | - Chaoliang Tang
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA; (Z.S.); (J.S.); (X.Z.); (C.T.); (L.M.); (A.Y.); (R.L.); (K.P.); (S.W.); (A.S.); (C.W.); (A.S.); (J.N.); (H.K.)
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA
| | - Li Ma
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA; (Z.S.); (J.S.); (X.Z.); (C.T.); (L.M.); (A.Y.); (R.L.); (K.P.); (S.W.); (A.S.); (C.W.); (A.S.); (J.N.); (H.K.)
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA
| | - Alka Yadav
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA; (Z.S.); (J.S.); (X.Z.); (C.T.); (L.M.); (A.Y.); (R.L.); (K.P.); (S.W.); (A.S.); (C.W.); (A.S.); (J.N.); (H.K.)
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA
| | - Rich Liang
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA; (Z.S.); (J.S.); (X.Z.); (C.T.); (L.M.); (A.Y.); (R.L.); (K.P.); (S.W.); (A.S.); (C.W.); (A.S.); (J.N.); (H.K.)
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA
| | - Kelly Press
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA; (Z.S.); (J.S.); (X.Z.); (C.T.); (L.M.); (A.Y.); (R.L.); (K.P.); (S.W.); (A.S.); (C.W.); (A.S.); (J.N.); (H.K.)
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA
| | - Shantel Weinsheimer
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA; (Z.S.); (J.S.); (X.Z.); (C.T.); (L.M.); (A.Y.); (R.L.); (K.P.); (S.W.); (A.S.); (C.W.); (A.S.); (J.N.); (H.K.)
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA
| | - Annika Schmidt
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA; (Z.S.); (J.S.); (X.Z.); (C.T.); (L.M.); (A.Y.); (R.L.); (K.P.); (S.W.); (A.S.); (C.W.); (A.S.); (J.N.); (H.K.)
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA
| | - Calvin Wang
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA; (Z.S.); (J.S.); (X.Z.); (C.T.); (L.M.); (A.Y.); (R.L.); (K.P.); (S.W.); (A.S.); (C.W.); (A.S.); (J.N.); (H.K.)
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA
| | - Abinav Sekhar
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA; (Z.S.); (J.S.); (X.Z.); (C.T.); (L.M.); (A.Y.); (R.L.); (K.P.); (S.W.); (A.S.); (C.W.); (A.S.); (J.N.); (H.K.)
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA
| | - Jeffrey Nelson
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA; (Z.S.); (J.S.); (X.Z.); (C.T.); (L.M.); (A.Y.); (R.L.); (K.P.); (S.W.); (A.S.); (C.W.); (A.S.); (J.N.); (H.K.)
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA
| | - Helen Kim
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA; (Z.S.); (J.S.); (X.Z.); (C.T.); (L.M.); (A.Y.); (R.L.); (K.P.); (S.W.); (A.S.); (C.W.); (A.S.); (J.N.); (H.K.)
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA
| | - Hua Su
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA; (Z.S.); (J.S.); (X.Z.); (C.T.); (L.M.); (A.Y.); (R.L.); (K.P.); (S.W.); (A.S.); (C.W.); (A.S.); (J.N.); (H.K.)
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA
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Xie YI, Tang C, Qin JP, Gu HQ, Wang ZW, Liu Q. Molecular docking technology and network pharmacology based on Rhapontici Radix-Cremastrae Pseudobulbus drug pair in treating breast cancer. Eur Rev Med Pharmacol Sci 2023; 27:10204-10212. [PMID: 37975344 DOI: 10.26355/eurrev_202311_34295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
OBJECTIVE Network pharmacology is a bioinformatics-based research strategy for identifying the mechanisms of drugs and promoting drug development. This study used network pharmacology to investigate the mechanism of the Loulu-Cremastrae Pseudobulbus drug pair treating breast cancer (BC). MATERIALS AND METHODS The ingredients and potential targets of the drug pair were searched with Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCSMP). National Center for Biotechnology Information (NCBI) and gene cards were used to search the targets of BC. Networks of "drugs-components-targets" and protein-protein interaction were constructed through Cytoscape. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis were carried out through common targets. Using AutoDock tool, molecular docking was performed to verify the binding between key targets and compounds. RESULTS Finally, we selected 6 active compounds from the drug pair. A total of 61 targets were associated with the drug pair, and 15,295 targets were related to BC. 55 common targets were obtained after the intersection. The key targets included Transcription factor Jun (JUN), Heat shock protein HSP 90-alpha (HSP90AA1), and Caspase-3(CASP3). 327 terms were obtained by GO analysis. 78 pathways (p < 0.05) were identified through KEGG analysis. Molecular docking indicated that important compounds combined well with key targets. CONCLUSIONS Various active compounds, including beta-sitosterol, 2-methoxy-9,10-dihydrophenanthrene-4,5-diol, and stigmasterol, can regulate multiple signaling pathways related to BC, such as the estrogen and prolactin signaling pathways, playing therapeutic roles in BC.
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Affiliation(s)
- Y-I Xie
- Department of Pharmacy, Hainan Medical University, Hainan General Hospital, Haikou, China.
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Sherry AD, Haymaker C, Bathala T, Lu X, Medina-Rosales M, Marmonti E, Pradeep H, Liu S, Fellman B, Mok H, Choi S, Chun SG, Aparicio A, Kovitz C, Zurita-Saavedra A, Gomez DR, Reuben A, Wistuba I, Corn PG, Tang C. Peripheral T-Cell Priming and Micrometastatic Disease Control with Metastasis-Directed Therapy: Multidimensional Immunogenomic Profiling of Oligometastatic Prostate Cancer in the EXTEND Trial. Int J Radiat Oncol Biol Phys 2023; 117:S33-S34. [PMID: 37784479 DOI: 10.1016/j.ijrobp.2023.06.299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Comprehensive metastasis-directed therapy (MDT) for oligometastatic prostate cancer extended progression-free survival (PFS) and time to new lesion formation in the intermittent hormone therapy (HT) basket of EXTEND. To better understand the mechanism of MDT benefit, we pooled the intermittent and continuous HT baskets of EXTEND and tested the hypothesis that adding MDT to HT would program systemic T-cells to control micrometastatic disease. MATERIALS/METHODS A total of 174 men were randomized to HT with or without MDT to up to 5 sites of metastases. HT was given for 6 months (intermittent basket, n = 87) or indefinitely (continuous basket, n = 87). Peripheral blood samples were drawn at enrollment, at the end of MDT, at 3 months follow-up (3 mo F/U), and at progression and then analyzed by flow cytometry, T-cell receptor (TCR)-β CDR3 variable region sequencing, multiplex cytokine profiling, and next-generation circulating tumor DNA (ctDNA) sequencing. TCR clonal expansion was determined using a published betabinomial model. Repertoire changes were assessed by Morisita's index, and dominant TCR repertoire motifs were characterized with ImmunoMap. Associations between blood markers and PFS were evaluated with Cox regression adjusted hazard ratios (aHR) accounting for randomization arm and stratifying for intermittent vs continuous HT. RESULTS Randomization to MDT+HT was associated with T-cell activation, proliferation, and clonal expansion. This response was first observed at end-MDT as upregulated expression of T-cell activation and inhibition markers (i.e., ICOS, Tim-3, and LAG-3) and increases in highly proliferative CD4+ and CD8+ Ki67hi T-cells (all P<0.05). TCR sequencing of 7,678,911 T-cells revealed that MDT+HT was associated with TCR clonal expansion, remodeling of the TCR repertoire, and changes in dominant TCR motifs at end-MDT and 3 mo F/U (all P<0.05). Observed T-cell priming could be driven by signaling networks of canonical T-cell stimulatory cytokines (IL-2, IL-12, and IL-15), which were upregulated at end-MDT and persisted at 3 mo F/U (all P<0.05). This modulation of T-cell phenotype, clonotype, and cytokine concentrations was not observed in the HT-monotherapy arm. At end-MDT, systemic T-cell responses were associated with improved PFS, most notably CD8+ T-cell expression of LAG-3 (aHR 0.22, 95% CI 0.03-0.91) and high TCR clonal expansion (aHR 0.13, 95% CI 0.02-0.52). High ctDNA burden at end-MDT correlated with worse PFS (aHR 1.41, 95% CI 1.04-2.54), as did CD8+ T-cell expression of inhibitory receptor TIGIT at 3 mo F/U (aHR 1.03, 95% CI 1.01-1.06). CONCLUSION The addition of MDT to HT induced systemic T-cell activation and expansion, which was not observed in the HT-only arm. This systemic immune response was independently associated with improved PFS. In addition to cytoreduction of macroscopic disease, MDT-induced immune education may be an important complementary mechanism of micrometastatic control in oligometastatic prostate cancer.
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Affiliation(s)
- A D Sherry
- Department of Radiation Oncology, Division of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - C Haymaker
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - T Bathala
- Department of Abdominal Imaging, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - X Lu
- Department of Radiation Oncology, Division of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - M Medina-Rosales
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - E Marmonti
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - H Pradeep
- Department of Radiation Oncology, Division of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - S Liu
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - B Fellman
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - H Mok
- Department of Genitourinary Radiation Oncology, Division of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - S Choi
- Department of Genitourinary Radiation Oncology, Division of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - S G Chun
- Department of Radiation Oncology, Division of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - A Aparicio
- Department of Genitourinary Medical Oncology, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - C Kovitz
- Department of General Oncology, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - A Zurita-Saavedra
- Department of Genitourinary Medical Oncology, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - D R Gomez
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - A Reuben
- Department of Thoracic-Head & Neck Medical Oncology, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - I Wistuba
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - P G Corn
- Department of Genitourinary Medical Oncology, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - C Tang
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX; Department of Genitourinary Radiation Oncology, Division of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
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Reddy JP, Liu S, Bathala T, Smith BD, Ramirez D, Shaitelman SF, Chun SG, Brewster AM, Barcenas CH, Ghia AJ, Ludmir EB, Patel AB, Shah SJ, Woodward WA, Gomez DR, Tang C. Addition of Metastasis-Directed Therapy to Standard of Care Systemic Therapy for Oligometastatic Breast Cancer (EXTEND): A Multicenter, Randomized Phase II Trial. Int J Radiat Oncol Biol Phys 2023; 117:S136-S137. [PMID: 37784348 DOI: 10.1016/j.ijrobp.2023.06.541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Prior retrospective and prospective evidence have suggested a potential survival benefit of adding metastasis-directed therapy (MDT) to standard of care systemic therapy for oligometastatic breast cancer. This has led to the increased utilization of MDT in this setting despite the lack of randomized evidence to support this approach. Furthermore, the recent presentation of NRG-BR002 has questioned the value of MDT. Thus, we evaluated whether the addition of MDT to systemic therapy improves PFS in oligometastatic breast cancer. MATERIALS/METHODS EXTEND (NCT03599765) is a phase II randomized basket trial for multiple solid tumors testing whether the addition of MDT improves PFS. The primary endpoint was pre-specified to be independently assessed and reported for the breast basket when a minimum of 6 months of follow-up had been reached. Patients with ≤5 metastases were randomized to standard of care systemic therapy with or without MDT. The choice of systemic therapy was at the discretion of the treating medical oncologist. Number of metastatic lesions and prior lines of systemic therapy for metastatic disease were used as stratification variables pre-randomization. The primary endpoint was progression-free survival (PFS) defined as time to randomization to date of clinical or radiographic progression or death. The study was designed to have 80% power to detect an improvement in median PFS from 18 to 36 months, with a type I error of 0.1. RESULTS Between September 2018 to July 2022, 43 patients were randomized. 22 patients were assigned to the MDT arm, and 21 patients to the no MDT arm. Three patients were not evaluable. The MDT arm patients were older vs the no-MDT arm patients (median 61.5 years vs 48 years, p = 0.01). Otherwise, the arms were well-balanced. Overall, 8 patients had triple negative disease (18.6%), and 12 patients (30%) had de novo metastatic disease. Of those patients with de novo presentation randomized to MDT, all except one had the primary tumor treated with surgery and radiation. At a median follow-up of 19.4 months, 20 events were observed. Among the 40 evaluable patients, there were 5 deaths (3 in the MDT arm and 2 in the no MDT arm). There was no difference in PFS between the MDT and no MDT arms (median 15.6 v 24.9 months, p = 0.66). Similarly, there was no difference in the secondary endpoint of time to new metastatic lesion appearance between the MDT and no MDT arms (median 15.6 months vs not reached, p = 0.09). Two grade 3 toxicities were observed in the MDT arm, and 1 in the no MDT arm. Further analysis of correlative translational biomarkers, including immune markers and ctDNA, are ongoing. CONCLUSION The addition of MDT to standard of care systemic therapy did not improve PFS or time to new metastatic lesion in patients with oligometastatic breast cancer. This data coupled with the recently presented NRG-BR002 results, suggests there is no benefit to MDT in an otherwise unselected oligometastatic breast cancer population.
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Affiliation(s)
- J P Reddy
- University of Texas MD Anderson Cancer Center, Houston, TX
| | - S Liu
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - T Bathala
- Department of Abdominal Imaging, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - B D Smith
- Department of Breast Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - D Ramirez
- University of Texas MD Anderson Cancer Center, Houston, TX
| | - S F Shaitelman
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - S G Chun
- Department of Radiation Oncology, Division of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - A M Brewster
- University of Texas MD Anderson Cancer Center, Houston, TX
| | | | - A J Ghia
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - E B Ludmir
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - A B Patel
- Winship Cancer Institute at Emory University, Atlanta, GA
| | - S J Shah
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - W A Woodward
- Department of Breast Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - D R Gomez
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - C Tang
- Department of Genitourinary Radiation Oncology, Division of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
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Florez M, De B, Kowalchuk RO, Tang C, Bishop AJ, Kouzy R, Amini B, Briere TM, Beckham T, Wang C, Li J, Tatsui C, Rhines LD, Merrell KW, Ghia AJ. Validation of the Prognostic Index for Spine Metastasis (PRISM) Score for Stratifying Survival in Patients Treated with Spinal Stereotactic Radiosurgery. Int J Radiat Oncol Biol Phys 2023; 117:e103-e104. [PMID: 37784632 DOI: 10.1016/j.ijrobp.2023.06.875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Stereotactic spinal radiosurgery (SSRS) has been increasingly utilized as a first-line treatment for the management of spine metastases due to its ability to prolong survival and improve symptom control. Studies have shown that SSRS is helpful for select patients; however, there is no universal scoring system utilized to predict patient response to treatment. The Prognostic Index for Spinal Metastases (PRISM) score was shown to predict the likelihood of patients benefiting from SSRS. We sought to further demonstrate its generalizability by performing validation with a large dataset from a second high-volume institution. MATERIALS/METHODS We performed a retrospective review from 2017-2019 of 424 patients treated with SSRS at a single institution. Patients were stratified on the previously described PRISM criteria: Female sex (+2), solitary bone disease (+3), performance status (0 through +3.5), prior surgery at the SSRS site (+1), number of other metastatic sites (-N), prior radiation at the SSRS site (-1), and latency to treatment ≥ 5 months (+3). Patients were grouped based on PRISM scores: >7, Group 1; 4-7, Group 2; 1-3, Group 3; <1 Group 4. There were 89, 188, 88, and 59 patients in Groups 1, 2, 3, and 4, respectively. Most patients were male (70%) with a performance status of 0 (53%). The most common tumor histologies were prostate (34%), renal (18%), and lung (11%). The median biological effective dose (BED10) was 60 Gy (interquartile range [IQR], 60-82). We performed Cox proportional hazards analysis on overall survival (OS) based on PRISM score and patient and tumor characteristics. Concordance indices created from PRISM criteria and the multivariate Cox proportional analysis were compared. RESULTS The median follow-up time was 50.5 months (95% confidence interval [CI], 45.8-54.7) with a median overall survival of 30.3 months (95% CI, 27.3-38.4). The median overall survivals for PRISM Groups 1, 2, 3, and 4 were 57.1, 37, 23.7, and 8.8 months, respectively. There were significant differences in overall survival among PRISM groups with hazard ratios of 0.49 (95% CI, 0.35-0.69; P<0.001) for Group 1, 0.71 (95% CI, 0.55-0.91); P<0.007) for Group 2, 1,45 (95% CI, 1.08-1.94); P = 0.010) for Group 3, and 3.47 (95% CI, 2.56-4.70; P<0.001) for Group 4. Multivariable Cox analysis for patient and tumor characteristics revealed only the number of organs involved and performance status as significant clinicopathologic prognostic attributes. However, the C-index using the PRISM criteria was 0.76, which was superior to the C-index when using the significant clinicopathologic attributes by themselves (0.71). CONCLUSION These data demonstrate robust validation of the PRISM score to stratify OS in patients treated with SSRS and may help guide optimal treatment selection in prospective trials and clinical settings.
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Affiliation(s)
- M Florez
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - B De
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - R O Kowalchuk
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN
| | - C Tang
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - A J Bishop
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - R Kouzy
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - B Amini
- Department of Musculoskeletal Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - T M Briere
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - T Beckham
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - C Wang
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - J Li
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - C Tatsui
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - L D Rhines
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - K W Merrell
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN
| | - A J Ghia
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
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Landy R, Killcoyne S, Tang C, Juniat S, O’Donovan M, Goel N, Gehrung M, Fitzgerald RC. Real-world implementation of non-endoscopic triage testing for Barrett's oesophagus during COVID-19. QJM 2023; 116:659-666. [PMID: 37220898 PMCID: PMC10497181 DOI: 10.1093/qjmed/hcad093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 04/27/2023] [Indexed: 05/25/2023] Open
Abstract
BACKGROUND The Coronavirus pandemic (COVID-19) curtailed endoscopy services, adding to diagnostic backlogs. Building on trial evidence for a non-endoscopic oesophageal cell collection device coupled with biomarkers (Cytosponge), an implementation pilot was launched for patients on waiting lists for reflux and Barrett's oesophagus surveillance. AIMS (i) To review reflux referral patterns and Barrett's surveillance practices. (ii) To evaluate the range of Cytosponge findings and impact on endoscopy services. DESIGN AND METHODS Cytosponge data from centralized laboratory processing (trefoil factor 3 (TFF3) for intestinal metaplasia (IM), haematoxylin & eosin for cellular atypia and p53 for dysplasia) over a 2-year period were included. RESULTS A total of 10 577 procedures were performed in 61 hospitals in England and Scotland, of which 92.5% (N = 9784/10 577) were sufficient for analysis. In the reflux cohort (N = 4074 with gastro-oesophageal junction sampling), 14.7% had one or more positive biomarkers (TFF3: 13.6% (N = 550/4056), p53: 0.5% (21/3974), atypia: 1.5% (N = 63/4071)), requiring endoscopy. Among samples from individuals undergoing Barrett's surveillance (N = 5710 with sufficient gland groups), TFF3-positivity increased with segment length (odds ratio = 1.37 per cm (95% confidence interval: 1.33-1.41, P < 0.001)). Some surveillance referrals (21.5%, N = 1175/5471) had ≤1 cm segment length, of which 65.9% (707/1073) were TFF3 negative. Of all surveillance procedures, 8.3% had dysplastic biomarkers (4.0% (N = 225/5630) for p53 and 7.6% (N = 430/5694) for atypia), increasing to 11.8% (N = 420/3552) in TFF3+ cases with confirmed IM and 19.7% (N = 58/294) in ultra-long segments. CONCLUSIONS Cytosponge-biomarker tests enabled targeting of endoscopy services to higher-risk individuals, whereas those with TFF3 negative ultra-short segments could be reconsidered regarding their Barrett's oesophagus status and surveillance requirements. Long-term follow-up will be important in these cohorts.
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Affiliation(s)
- R Landy
- Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - S Killcoyne
- Cyted Ltd, 22 Station Road, Cambridge CB1 2JD, UK
| | - C Tang
- Cyted Ltd, 22 Station Road, Cambridge CB1 2JD, UK
| | - S Juniat
- Cyted Ltd, 22 Station Road, Cambridge CB1 2JD, UK
| | - M O’Donovan
- Cyted Ltd, 22 Station Road, Cambridge CB1 2JD, UK
- Department of Histopathology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - N Goel
- Cyted Ltd, 22 Station Road, Cambridge CB1 2JD, UK
| | - M Gehrung
- Cyted Ltd, 22 Station Road, Cambridge CB1 2JD, UK
| | - R C Fitzgerald
- Department of Oncology, Early Cancer Institute, University of Cambridge, Cambridge CB2 0XZ, UK
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Ryzhii V, Tang C, Otsuji T, Ryzhii M, Mitin V, Shur MS. Resonant plasmonic detection of terahertz radiation in field-effect transistors with the graphene channel and the black-As[Formula: see text]P[Formula: see text] gate layer. Sci Rep 2023; 13:9665. [PMID: 37316517 PMCID: PMC10267188 DOI: 10.1038/s41598-023-36802-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 06/12/2023] [Indexed: 06/16/2023] Open
Abstract
We propose the terahertz (THz) detectors based on field-effect transistors (FETs) with the graphene channel (GC) and the black-Arsenic (b-As) black-Phosphorus (b-P), or black-Arsenic-Phosphorus (b-As[Formula: see text]P[Formula: see text]) gate barrier layer. The operation of the GC-FET detectors is associated with the carrier heating in the GC by the THz electric field resonantly excited by incoming radiation leading to an increase in the rectified current between the channel and the gate over the b-As[Formula: see text]P[Formula: see text] energy barrier layer (BLs). The specific feature of the GC-FETs under consideration is relatively low energy BLs and the possibility to optimize the device characteristics by choosing the barriers containing a necessary number of the b-As[Formula: see text]P[Formula: see text] atomic layers and a proper gate voltage. The excitation of the plasma oscillations in the GC-FETs leads to the resonant reinforcement of the carrier heating and the enhancement of the detector responsivity. The room temperature responsivity can exceed the values of [Formula: see text] A/W. The speed of the GC-FET detector's response to the modulated THz radiation is determined by the processes of carrier heating. As shown, the modulation frequency can be in the range of several GHz at room temperatures.
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Affiliation(s)
- V. Ryzhii
- Research Institute of Electrical Communication, Tohoku University, Sendai, 980-8577 Japan
| | - C. Tang
- Research Institute of Electrical Communication, Tohoku University, Sendai, 980-8577 Japan
| | - T. Otsuji
- Research Institute of Electrical Communication, Tohoku University, Sendai, 980-8577 Japan
| | - M. Ryzhii
- Department of Computer Science and Engineering, University of Aizu, Aizu-Wakamatsu, 965-8580 Japan
| | - V. Mitin
- Department of Electrical Engineering, University at Buffalo, SUNY, Buffalo, NY 14260 USA
| | - M. S. Shur
- Department of Electrical, Computer, and Systems Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180 USA
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Ma L, Zhu X, Tang C, Pan P, Yadav A, Liang R, Press K, Su H. CNS resident macrophages enhance dysfunctional angiogenesis and circulating monocytes infiltration in brain arteriovenous malformation. Res Sq 2023:rs.3.rs-2899768. [PMID: 37214790 PMCID: PMC10197785 DOI: 10.21203/rs.3.rs-2899768/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Myeloid immune cells present abundantly in both ruptured and unruptured brain arteriovenous malformations (bAVMs). The role of central nervous system (CNS) resident and circulating monocyte-derived macrophages in bAVM pathogenesis has not been fully understood. RNA sequencing using cultured cells and bAVM samples revealed that downregulation of activin-like kinase 1 (ALK1) or endoglin (two bAVM causative genes) increased pro-angiogenic, endothelial inflammation and innate immune signaling, which provided endogenous underpinnings of the active inflammation in bAVM. To further understand the role of CNS resident macrophages in bAVM development and hemorrhage, we administrated a colony-stimulating factor 1 receptor (CSF1R) inhibitor to bAVM mice with endothelial Alk1 deletion. Transient depletion of CNS resident macrophages at early stage of bAVM development remarkably mitigated the subsequent phenotype severity of bAVM. This therapeutic effect exhibited a prolonged inhibition of angiogenesis, dysplastic vasculature formation, and infiltration of CNS resident and circulating monocyte-derived macrophages during bAVM development. Transient depletion of CNS resident macrophages also reduced the dysplasia vessels and improved the integrity of endothelial tight junctions in established bAVMs. Administration of CSF1R inhibitor also prevented severe hemorrhage of bAVMs. Thus, endothelial AVM causative gene mutation can activate CNS resident macrophages promoting bAVM progression. CNS resident macrophages could be specific targets to mitigate the development and severity of bAVMs.
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Affiliation(s)
- Li Ma
- University of California, San Francisco
| | | | | | | | | | | | | | - Hua Su
- University of California, San Francisco
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14
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Tang C, Ahmed MH, Yao C, Mercelis B, Yoshihara K, Peumans M, Van Meerbeek B. Bonding performance of experimental HEMA-free two-step universal adhesives to low C-factor flat dentin. Dent Mater 2023:S0109-5641(23)00106-9. [PMID: 37164892 DOI: 10.1016/j.dental.2023.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 04/27/2023] [Indexed: 05/12/2023]
Abstract
OBJECTIVES Experimental two-step universal adhesives (2-UAs) providing a particle-filled hydrophobic adhesive resin with a significant film thickness to hydrophobically seal the adhesive interface were designed and synthesized. This study aimed to characterize their interfacial interaction with dentin, to determine whether the 2-UA formulations achieve durable bonding to low C-factor flat dentin and to measure their water sorption. METHODS Bonding effectiveness of 2-UAs that combine a 10-MDP-based primer with hydrophobic adhesive resins differing only for filler (BZF-21, BZF-29, and BZF-29_hv) were comparatively investigated with the commercial adhesive Clearfil SE Bond 2 (C-SE2, Kuraray Noritake). Adhesive-dentin interfaces were characterized with TEM. Adhesive-resin disks were immersed in distilled water at 37 °C for 1 week, 6 months and 1 year to measure water sorption and solubility. 'Immediate' and 'aged' micro-tensile bond strength (μTBS) of the adhesives applied in etch-and-rinse (E&R) and self-etch (SE) bonding mode to low C-factor flat dentin were measured. Statistical analyses involved linear mixed-effects (LME) modelling and Kruskal-Wallis testing (p < 0.05). RESULTS TEM revealed that E&R hybrid layers were more sensitive to aging than SE hybrid layers. Lower water sorption was recorded for all UAs compared with C-SE2. The immediate μTBS of BZF-21 and BZF-29 was not significantly different from that of C-SE2. The 1-year aged μTBS of all 2-UAs was significantly lower than that of C-SE2, except for BZF-29 applied in E&R mode. A significant reduction in μTBS upon 1-year aging was recorded for BZF-21 and BZF-29 applied in E&R mode. A significant difference in μTBS between E&R and SE bonding modes was recorded for all adhesives except BZF-21. SIGNIFICANCE Experimental 2-UAs with a hydrophobic adhesive-resin design produced± 20-μm thick adhesive-resin layers, absorbed less water and resulted in bonding performance that was more aging-resistant when applied in SE than in E&R bonding mode. The silica-filled BZF-29 2-UA revealed the most comparable bonding performance with C-SE2 in a low C-factor condition (flat dentin).
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Affiliation(s)
- C Tang
- KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT - Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium
| | - M H Ahmed
- KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT - Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium; Tanta University, Faculty of Dentistry, Department of Dental Biomaterials, Tanta, Egypt
| | - C Yao
- KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT - Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium; Wuhan University, School & Hospital of Stomatology, The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, Wuhan, China
| | - B Mercelis
- KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT - Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium
| | - K Yoshihara
- National Institute of Advanced Industrial Science and Technology (AIST), Health and Medical Research Institute, Kagawa, Japan; Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Department of Pathology & Experimental Medicine, Okayama, Japan
| | - M Peumans
- KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT - Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium
| | - B Van Meerbeek
- KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT - Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium.
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Kasivisvanathan V, Murphy D, Link E, Lawrentschuk N, O’Brien J, Buteau J, Roberts M, Francis R, Tang C, Vela I, Thomas P, Rutherford N, Martin J, Frydenberg M, Shakher R, Wong LM, Taubman K, Lee S, Hsiao E, Nottage M, Kirkwood I, Iravani A, Williams S, Hofman M. Baseline PSMA PET-CT is prognostic for treatment failure in men with intermediate-to-high risk prostate cancer: 54 months follow-up of the proPSMA randomised trial. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)01275-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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16
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Gao C, Huang T, Wu K, Zhang W, Wang S, Chai X, Xie Y, Tang C. Multimodal Analgesia for Accelerated Rehabilitation after Total Knee Arthroplasty: A Randomized, Double-Blind, Controlled Trial on the Effect of the Co-Application of Local Infiltration Analgesia and Femoral Nerve Block Combined with Dexmedetomidine. Brain Sci 2022; 12:brainsci12121652. [PMID: 36552112 PMCID: PMC9775145 DOI: 10.3390/brainsci12121652] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 11/21/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022] Open
Abstract
Background: Multimodal postoperative pain regimens are widely used following total knee arthroplasty (TKA). However, there are few studies on the rehabilitation of the co-application of local infiltration analgesia (LIA) and femoral nerve block (FNB) combined with dexmedetomidine (DEX) for patients undergoing TKA. This study aimed to investigate the effect of LIA plus FNB and co-application of perioperative DEX on TKA outcomes. Methods: 95 patients were randomized into two groups. Patients in group B (n = 48) received a single preoperative FNB and LIA. Patients in group A (n = 47) received FNB and LIA, as well as continuous intravenous injection of DEX starting from the induction of anesthesia to postoperative day 2. All patients were allowed patient-controlled analgesia postoperatively. Visual analog scale (VAS) scores, knee range of motion (ROM) degrees, narcotic consumption, length of hospital stay (LOS), complications, Hospital for Special Surgery (HSS) scores and Montreal Cognitive Assessment-Basic (MoCA-B) Scores were recorded. Results: In group A, the mean VAS scores at rest and during movement were lower, the amount of rescue analgesia was decreased, first time of ambulation was reduced, ROM was improved, MoCA-B Scores were increased, LOS was shorter, HSS scores were higher postoperatively compared with group B (all p < 0.05). Conclusion: Our study indicated multimodal analgesia involving a single FNB and LIA combined with DEX accelerates rehabilitation for patients undergoing TKA.
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Affiliation(s)
- Chen Gao
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life, Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Tingting Huang
- Department of Anesthesiology, The First Affiliated Hospital of Anhui Medical University, Hefei 230001, China
| | - Kerong Wu
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life, Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Wei Zhang
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life, Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Sheng Wang
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life, Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Xiaoqing Chai
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life, Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Yanhu Xie
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life, Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
- Correspondence:
| | - Chaoliang Tang
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life, Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
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17
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Tang C, Sherry A, Haymaker C, Bathala T, Liu S, Fellman B, Aparicio A, Zurita-Saavedra A, Chun S, Reddy J, Efstathiou E, Wang J, Pilie P, Reuben A, Kovitz C, Kumar R, Chapin B, Gomez D, Wistuba I, Corn P. Addition of Metastasis-Directed Therapy to Intermittent Hormone Therapy for Oligometastatic Prostate Cancer (EXTEND): A Multicenter, Randomized Phase II Trial. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Ko R, Yu Z, Prajapati S, Lee B, Albert R, Daniel A, Nguyen Q, Choi S, Msaouel P, Kudchadker R, Gomez D, Tang C. Neuromuscular Toxicity and Dose-Volume Relationships Following SBRT for Bone Oligometastases: Post-Hoc Analysis of Two Ongoing Clinical Trials. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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19
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Sherry A, Bathala T, Liu S, Chun S, Jasani N, Guadagnolo B, Holliday E, Jhingran A, Reddy J, Corn P, Shah A, Fellman B, Kaiser K, Ghia A, Gomez D, Tang C. Definitive Local Consolidative Therapy for Oligometastatic Solid Tumors: Results from the Lead-In Phase of the Randomized Basket Trial EXTEND. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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20
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Sosa A, Choi S, Nguyen Q, Kudchadker R, Sanders J, Zhu X, Shah S, Mok H, Kuban D, Mayo L, Hoffman K, Tang C, McGuire S, Ausat N, Thames H, Frank S. Proton Therapy for Localized Prostate Cancer: Long-Term Clinical Outcomes at a Comprehensive Cancer Center. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Andring L, Abu-Gheida I, Bathala T, Yoder A, Maldonado J, Frank S, Choi S, Nguyen Q, Hoffman K, Mok H, McGuire S, Kuban D, Aparicio A, Chapin B, Tang C. Improved Survival Outcomes after Local Therapy in Men with Metastatic and Non-Metastatic cT4 Prostate Cancer Presenting with Obstructive Urinary Symptoms. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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22
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Lv J, Xiao L, Liu Y, Wang Y, Zhang R, Chen T, Zhang H, Tang C, Pan S, Nie X, Zhang M, Li T. Caloric Restriction Ketogenic Diets (KR) Enhance Radiotherapy Responses in Lung Cancer Xenografts. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.2105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Huang JJ, Tang C, Tang AZ, Tan ZG, Wu Z. [Intravenous gadolinium-enhanced inner ear MRI of a patient with Ménière's disease during a vertigo attack]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:1240-1242. [PMID: 36319131 DOI: 10.3760/cma.j.cn115330-20211012-00658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- J J Huang
- Department of Otolaryngology Head and Neck Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - C Tang
- Department of Radiology, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - A Z Tang
- Department of Otolaryngology Head and Neck Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Z G Tan
- Department of Otolaryngology Head and Neck Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Zhenggui Wu
- Department of Otolaryngology Head and Neck Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
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24
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Weickhardt A, Foroudi F, Xie J, Kanojia K, Sidhom M, Pal A, Grimison P, Zhang A, Ng S, Tang C, Hovey E, Chen C, Hruby G, Guminski A, Mcjannett M, Conduit C, Lawrentschuk N, Tran B, Davis I, Hayne D. 1739P Pembrolizumab with chemoradiotherapy as treatment for muscle invasive bladder cancer: Analysis of safety and efficacy of the PCR-MIB phase II clinical trial (ANZUP 1502). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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25
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Pleasants D, Zak R, Ashbrook LH, Zhang L, Tang C, Tran D, Wang M, Tabatabai S, Leung JM. Processed electroencephalography: impact of patient age and surgical position on intraoperative processed electroencephalogram monitoring of burst-suppression. J Clin Monit Comput 2022; 36:1099-1107. [PMID: 34245405 PMCID: PMC11046414 DOI: 10.1007/s10877-021-00741-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 07/05/2021] [Indexed: 10/20/2022]
Abstract
We previously reported that processed EEG underestimated the amount of burst suppression compared to off-line visual analysis. We performed a follow-up study to evaluate the reasons for the discordance. Forty-five patients were monitored intraoperatively with processed EEG. A computer algorithm was used to convert the SedLine® (machine)-generated burst suppression ratio into a raw duration of burst suppression. The reference standard was a precise off-line measurement by two neurologists. We measured other potential variables that may affect machine accuracy such as age, surgery position, and EEG artifacts. Overall, the median duration of bust suppression for all study subjects was 15.4 min (Inter-quartile Range [IQR] = 1.0-20.1) for the machine vs. 16.1 min (IQR = 0.3-19.7) for the neurologists' assessment; the 95% limits of agreement fall within - 4.86 to 5.04 s for individual 30-s epochs. EEG artifacts did not affect the concordance between the two methods. For patients in prone surgical position, the machine estimates had significantly lower overall sensitivity (0.86 vs. 0.97; p = 0.038) and significantly wider limits of agreement ([- 4.24, 3.82] seconds vs. [- 1.36, 1.13] seconds, p = 0.001) than patients in supine position. Machine readings for younger patients (age < 65 years) had higher sensitivity (0.96 vs 0.92; p = 0.021) and specificity (0.99 vs 0.88; p = 0.007) for older patients. The duration of burst suppression estimated by the machine generally had good agreement compared with neurologists' estimation using a more precise off-line measurement. Factors that affected the concordance included patient age and position during surgery, but not EEG artifacts.
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Affiliation(s)
- D Pleasants
- Department of Anesthesia and Perioperative Care, University of California San Francisco, San Francisco, CA, USA
| | - R Zak
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - L H Ashbrook
- Department of Neurology, University of California San Francisco, San Francisco, CA, USA
| | - L Zhang
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA
| | - C Tang
- Department of Anesthesia and Perioperative Care, University of California San Francisco, San Francisco, CA, USA
| | - D Tran
- Department of Anesthesia and Perioperative Care, University of California San Francisco, San Francisco, CA, USA
| | - M Wang
- Department of Anesthesia and Perioperative Care, University of California San Francisco, San Francisco, CA, USA
| | - S Tabatabai
- Department of Anesthesia and Perioperative Care, University of California San Francisco, San Francisco, CA, USA
| | - J M Leung
- Department of Anesthesia and Perioperative Care, University of California San Francisco, San Francisco, CA, USA.
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26
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Ward J, Gill S, Armstrong K, Fogarty T, Tan D, Scott A, Yahya A, Dhaliwal S, Jacques A, Tang C. PO-1384 Simethicone use to Reduce Rectal Variability During Prostate Cancer Radiotherapy, a Randomised Trial. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03348-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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27
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Huang L, Feng Z, Tang C. Gastrointestinal: A rare case of necrotic pancreatitis caused by Epstein-Barr virus. J Gastroenterol Hepatol 2022; 37:779. [PMID: 34761435 PMCID: PMC9298893 DOI: 10.1111/jgh.15721] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 09/27/2021] [Accepted: 10/18/2021] [Indexed: 02/05/2023]
Affiliation(s)
- L. Huang
- Department of Gastroenterology, West China HospitalSichuan UniversityChengduChina
| | - Z. Feng
- Department of Gastroenterology, West China HospitalSichuan UniversityChengduChina
| | - C. Tang
- Department of Gastroenterology, West China HospitalSichuan UniversityChengduChina
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Shaligram S, Zhang R, Zhu W, Ma L, Luo M, Li Q, Weiss M, Arnold T, Grez NG S, Liang R, Predo L, Tang C, Pan P, Su H. Abstract TMP5: Bone Marrow-derived And Clonally Expanded Alk1
-
Endothelial Cells Contribute To Brain Arteriovenous Malformation In Mice. Stroke 2022. [DOI: 10.1161/str.53.suppl_1.tmp5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background and Purpose:
Homozygous mutation in arteriovenous malformation (AVM) causative genes in a fraction of endothelial cells (ECs) causes brain AVMs (bAVMs). Heterozygous mutation of endoglin, an AVM causative gene, in bone marrow (BM) caused capillary dysplasia in mouse brain. We tested if (1) homozygous mutation of activin receptor-like kinase 1 (
Alk1,
another AVM causative gene) in BM derived ECs (BMDECs) can cause bAVM in brain angiogenic region, (2) Alk1
-
ECs clonally expand in bAVM, and (3) the burden of Alk1
-
ECs correlates with bAVM severity.
Methods:
The BMs of
Pdgfb
iCreER;
Alk1
2
f/2f
;Ai14 mice with EC-specific tamoxifen-inducible Cre and
Alk1
floxed alleles were transplanted into wild-type mice to analyze the role of BMDECs in bAVM development.
Pdgfb
iCreER;
Alk1
2
f/2f
;confetti
+/-
mice with Cre-regulated confetti transgene were used to study EC clonal expansion. Brain AVMs were induced by intra-brain injection of an adeno-associated viral vector expressing vascular endothelial growth factor followed by intra-peritoneal injection of tamoxifen.
Results:
Wild-type mice transplanted with
Pdgfb
iCreER;
Alk1
2
f/2f
;Ai14 BM developed bAVMs after bAVM induction. Recombined BMDECs were detected in bAVMs. The presence of clusters of ECs expressing same confetti color in bAVMs suggests that Alk1
-
ECs had been clonally expanded. Increasing tamoxifen dose increased the number of Alk1
-
ECs and abnormal vessels in bAVMs of
Pdgfb
iCreER;
Alk1
2
f/2f
mice.
Conclusion:
Homozygous mutation of
Alk1
in BMDECs is sufficient to cause bAVM development in brain angiogenic region; clonal expansion of Alk1
-
ECs provides a likely mechanism for how a fraction of mutant ECs causes bAVM; and the burden of Alk1
-
ECs correlates with AVM severity.
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Affiliation(s)
| | - Rui Zhang
- Anesthesia and Perioperative Care, Univ of California, San Francisco, San Francisco, CA
| | - Wan Zhu
- Anesthesia and Perioperative Care, Univ of California, San Francisco, San Francisco, CA
| | - Li Ma
- BEIJING TIANTAN HOSPITAL, Beijing
| | - Man Luo
- Anesthesia and Perioperative Care, Univ of California, San Francisco, San Francisco, CA
| | - Qiang Li
- Neurosurgery, Univ of California, San Francisco, San Francisco, CA
| | - Miriam Weiss
- Neurosurgery, Univ of California, San Francisco, San Francisco, CA
| | - Thomas Arnold
- Pediatrics, Univ of California, San Francisco, San Francisco, CA
| | | | - Rich Liang
- Anesthesia and Perioperative Care, Univ of California, San Francisco, San Francisco, CA
| | - Leandro Predo
- Anesthesia and Perioperative Care, Univ of California, San Francisco, San Francisco, CA
| | - Chaoliang Tang
- Anesthesia and Perioperative Care, Univ of California, San Francisco, San Francisco, CA
| | - Peipei Pan
- Anesthesia and Perioperative Care, Univ of California, San Francisco, San Francisco, CA
| | - Hua Su
- Anesthesia and Perioperative Care, Univ of California, San Francisco, San Francisco, CA
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Hu Y, Zhu Y, Wei X, Tang C, Zhang W. Disitamab vedotin, a novel HER2-directed antibody - drug conjugate in gastric cancer and other solid tumors. Drugs Today (Barc) 2022; 58:491-507. [DOI: 10.1358/dot.2022.58.10.3408812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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30
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Xin L, Liu K, He B, Chen M, Tang B, Tang C, Zhang L. Morphological classification and clinical significance of medial malleolus based on computed tomography three-dimensional reconstruction. Folia Morphol (Warsz) 2021; 82:176-182. [PMID: 34966997 DOI: 10.5603/fm.a2021.0135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 12/08/2021] [Accepted: 12/10/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Internal malleolus fractures and postoperative functional limitations are serious complications of deltoid ligament repair, reconstruction, while studies on conducting beak. Anatomical structure classification of medial malleolus at home and abroad is reported rarely. Hence, this morphological study is mainly designed to investigate the anatomical morphological classification and clinical significance of medial malleolus based on computed tomography (CT) three-dimensional reconstruction. MATERIALS AND METHODS From October 2018 to January 2021, 373 patients who underwent CT examination of malleolus medialis joint in the Jiang'an Hospital of Traditional Chinese Medicine were observed. The medial malleolus was observed and classified; then, geometric parameters were measured according to different medial malleolus types. RESULTS According to the results of 373 cases, medial malleolus can be divided into four types: omega type (66%), radical sign type (16%), inverted triangle type (14%), and wave type (4%). CONCLUSIONS There are four main shapes: omega, inverted triangle, radical sign, and wave in the medial malleolus of all normal ankles. The measurement of medial malleolus parameters according to medial malleolus in different shapes was of importance to guide smooth operation of medial malleolus fixation and deltoid ligament reconstruction and epidemiological.
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Affiliation(s)
- L Xin
- Department of Orthopaedics, Jiang'an Hospital of Traditional Chinese Medicine, Yibin Sichuan, China.
| | - K Liu
- Department of Radiology, Yibin Third People's Hospital, Yibin Sichuan, China
| | - B He
- Department of Orthopaedics, Jiang'an Hospital of Traditional Chinese Medicine, Yibin Sichuan, China
| | - M Chen
- Department of Internal Medicine, Jiang'an Hospital of Traditional Chinese Medicine, Yibin Sichuan, China
| | - B Tang
- Department of Orthopaedics, Jiang'an Hospital of Traditional Chinese Medicine, Yibin Sichuan, China
| | - C Tang
- Department of Orthopaedics, Jiang'an Hospital of Traditional Chinese Medicine, Yibin Sichuan, China
| | - L Zhang
- Department of Orthopaedics, Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou Sichuan, China.,Centre for Orthopaedic Diseases Research, Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou Sichuan, China.,Expert Workstation in Luzhou, Luzhou Sichuan, China.,Clinical Base of Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Guangdong Province Medical 3D Printing Application Transformation Engineering Technology Research Centre, Luzhou Sichuan, China
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31
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Wang L, Poenisch F, Sanders J, Sahoo N, Zhu X, Ma J, Choi S, Nguyen Q, Mok H, Tang C, McGuire S, Hoffman K, Shah S, Frank S. The Dosimetric Effect of MRI Positive-Contrast Markers vs. Negative-Contrast Fiducial Markers on Proton Radiation. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Sanders J, Mok H, Tang C, Hanania A, Venkatesan A, Bruno T, Kudchadker R, Thames H, Frank S. Benchmarking Automatic Segmentation Algorithms Against Human Interobserver Variability of Prostate and Organs at Risk Delineation on Prostate MRI. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.926] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Shaligram SS, Zhang R, Zhu W, Ma L, Luo M, Li Q, Weiss M, Arnold T, Santander N, Liang R, do Prado L, Tang C, Pan F, Oh SP, Pan P, Su H. Bone Marrow-Derived Alk1 Mutant Endothelial Cells and Clonally Expanded Somatic Alk1 Mutant Endothelial Cells Contribute to the Development of Brain Arteriovenous Malformations in Mice. Transl Stroke Res 2021; 13:494-504. [PMID: 34674144 PMCID: PMC9021325 DOI: 10.1007/s12975-021-00955-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 10/07/2021] [Accepted: 10/12/2021] [Indexed: 11/28/2022]
Abstract
We have previously demonstrated that deletion of activin receptor-like kinase 1 (Alk1) or endoglin in a fraction of endothelial cells (ECs) induces brain arteriovenous malformations (bAVMs) in adult mice upon angiogenic stimulation. Here, we addressed three related questions: (1) could Alk1- mutant bone marrow (BM)-derived ECs (BMDECs) cause bAVMs? (2) is Alk1- ECs clonally expended during bAVM development? and (3) is the number of mutant ECs correlates to bAVM severity? For the first question, we transplanted BM from PdgfbiCreER;Alk12f/2f mice (EC-specific tamoxifen-inducible Cre with Alk1-floxed alleles) into wild-type mice, and then induced bAVMs by intra-brain injection of an adeno-associated viral vector expressing vascular endothelial growth factor and intra-peritoneal injection of tamoxifen. For the second question, clonal expansion was analyzed using PdgfbiCreER;Alk12f/2f;confetti+/- mice. For the third question, we titrated tamoxifen to limit Alk1 deletion and compared the severity of bAVM in mice treated with low and high tamoxifen doses. We found that wild-type mice with PdgfbiCreER;Alk12f/2f BM developed bAVMs upon VEGF stimulation and Alk1 gene deletion in BMDECs. We also observed clusters of ECs expressing the same confetti color within bAVMs and significant proliferation of Alk1- ECs at early stage of bAVM development, suggesting that Alk1- ECs clonally expanded by local proliferation. Tamoxifen dose titration revealed a direct correlation between the number of Alk1- ECs and the burden of dysplastic vessels in bAVMs. These results provide novel insights for the understanding of the mechanism by which a small fraction of Alk1 or endoglin mutant ECs contribute to development of bAVMs.
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Affiliation(s)
- Sonali S Shaligram
- Center for Cerebrovascular Research, University of California, San Francisco, CA, USA.,Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA, USA
| | - Rui Zhang
- Center for Cerebrovascular Research, University of California, San Francisco, CA, USA.,Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA, USA
| | - Wan Zhu
- Center for Cerebrovascular Research, University of California, San Francisco, CA, USA.,Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA, USA
| | - Li Ma
- Center for Cerebrovascular Research, University of California, San Francisco, CA, USA.,Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA, USA
| | - Man Luo
- Center for Cerebrovascular Research, University of California, San Francisco, CA, USA.,Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA, USA
| | - Qiang Li
- Department of Neurosurgery, University of California, San Francisco, CA, USA
| | - Miriam Weiss
- Department of Neurosurgery, University of California, San Francisco, CA, USA
| | - Thomas Arnold
- Department of Pediatrics, University of California, San Francisco, CA, USA
| | - Nicolas Santander
- Department of Pediatrics, University of California, San Francisco, CA, USA
| | - Rich Liang
- Center for Cerebrovascular Research, University of California, San Francisco, CA, USA.,Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA, USA
| | - Leandro do Prado
- Center for Cerebrovascular Research, University of California, San Francisco, CA, USA.,Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA, USA
| | - Chaoliang Tang
- Center for Cerebrovascular Research, University of California, San Francisco, CA, USA.,Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA, USA
| | - Felix Pan
- Center for Cerebrovascular Research, University of California, San Francisco, CA, USA.,Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA, USA
| | - S Paul Oh
- Barrow Aneurysm & AVM Research Center, Department of Neurobiology, Barrow Neurological Institute, Phoenix, AZ, USA
| | - Peipei Pan
- Center for Cerebrovascular Research, University of California, San Francisco, CA, USA.,Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA, USA
| | - Hua Su
- Center for Cerebrovascular Research, University of California, San Francisco, CA, USA. .,Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA, USA.
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Khan H, Tang C, Kamalakannan B, Bamford R. 57 A Closed Loop Audit of Post-Operative Driving Advice Documentation. Br J Surg 2021. [DOI: 10.1093/bjs/znab259.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Aim
The Driving and Vehicle Licensing Agency state post-operatively it is between the patient and doctor to establish when would be safe to resume driving, providing recovery does not exceed three months. This audit aimed to assess and improve the documentation rate of driving advice in the discharge summaries given to patients post abdominal surgery.
Method
Retrospective data collection from electronic records over the months of August and September 2020. 132 discharge summaries were screened to assess the baseline rate of verbal/documented driving advice given on discharge. Following the 1st cycle, posters encouraging the inclusion of driving advice and demonstrating how to access driving advice to discharge summaries were developed and distributed across the surgical wards. A 2nd cycle re-audit was conducted in October 2020 to measure the effect of change, and a further 3rd cycle audit was conducted in November 2020.
Results
1st cycle included 132 patients. 62% had documented advice on their discharge summaries, while 38% had no proof of driving advice. After intervention, 2nd cycle included 30 patients. Results showed a significant increase in advice documentation (80%). A 3rd cycle was carried out with 47 patients. This showed a reduction in advice documentation (66%).
Conclusions
Driving advice on discharge in post-operative patients is crucial part of patient safety. Implementation of intervention has increased the documentation of driving advice showing enhancing patient safety. However, 3rd cycle after registrar’s changeover showed a decrease in the rate of documentation. A teaching session is planned for new doctors followed by 4th cycle.
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Affiliation(s)
- H Khan
- Musgrove Park Hospital, Taunton, United Kingdom
| | - C Tang
- Musgrove Park Hospital, Taunton, United Kingdom
| | | | - R Bamford
- Musgrove Park Hospital, Taunton, United Kingdom
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Zhao ZJ, Yuan XR, Yuan J, Xie YY, Tang C, Li HY, Zhang GD, Jiang WX, Liu Q. [Evaluation of classification of petroclival meningiomas and proposed selection of microsurgical approach: a single center experience of 179 cases]. Zhonghua Wai Ke Za Zhi 2021; 59:785-792. [PMID: 34404178 DOI: 10.3760/cma.j.cn112139-20210511-00212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the classification of petroclival meningiomas(PCM), proposed selection of microsurgical approach and therapeutic outcomes. Methods: Retrospectively analyzed clinical data of 179 cases of PCM from Department of Neurosurgery, Xiangya Hospital, Central South University between January 2011 and November 2020. There were 28 males and 151 females with an age of(49.9±10.2) years(range: 22 to 75 years) and the tumor size of(44.8±10.3)mm(range: 15 to 80 mm). The mean duration of symptom(M(QR)) was 18.0(40.6)months(range:1 week to 320 months) and the mean preoperative Karnofsky performance scale(KPS) was 78.6±13.3(range: 40 to 100). The PCM were classified into 5 types according to the difference in the origin of dural attachment, involvement of adjacent structures and growth patterns through preoperative MRI. The surgical approaches were selected based on the proposed classification, and the clinical characteristics, surgical record, and follow-up data of each type were reviewed. Results: The PCM were divided into clivus type(CV, 4 cases), petroclival type(PC, 60 cases), petroclivosphenoidal type(PC-S, 62 cases), sphenopetroclival type with 2 subtypes(S-PC, 50 cases) and central skull base type(CSB, 3 cases). All of 176 cases were obtained microsurgical treatment except CSB type. The gross total resection reached in 124 cases(70.5%) with 112 cases of retrosigmoid approach(RSA), 27 cases of subtemporal transtentorial transpetrosal approach, 13 cases of pretemporal trancavernous anterior transpetrosal approach(PTCA), 12 cases of extended pterional transtentorial approach(EPTA) and presigmoid combined supra-infratentorial approach, respectively. The RSA could be adopted in both of CV type and PC type and most of PC-S type(71.0%). S-PC subtype Ⅰ and subtype Ⅱ were mainly underwent EPTA(40.8%) and PTCA(52.2%), respectively. Seventy-two cases(40.9%) gained new neurological dysfunctions mainly with the cranial nerve paralysis. The postoperative morbidity and complications were recovered or improved with conservative and positive symptomatic and supportive treatment. There was no intraoperative and postoperative death case. One hundred and sixty four cases(93.2%) of operative patients were followed with the duration of 24(48)months(range:3 to 108 months). Tumor recurrence and progress were identified in 14 cases(10.4%) and 14 cases(28.6%), respectively. Compared with postoperative neurological status, 89 patients(54.3%) had improved and 38 patients(23.2%) were still suffering various degrees of neurological dysfunctions during the follow-up. The recent KPS was 84.2±11.4(range: 50 to 100) without statistical difference from preoperative KPS(t=-1.356,P=0.125). As for each type, there were statistically significant differences in brain stem edema(χ2=3.482,P=0.038), gross total resection(χ2=9.127,P=0.001), surgical duration(F=8.954, P=0.013), postoperative length of stay(F=3.652, P=0.025), postoperative complications(χ2=1.550,P=0.024), postoperative KPS(F=2.856, P=0.042) and tumor recurrence/progress(χ2=4.824,P=0.013). Conclusion: The precise and comprehensive classification of PCM and specific individual treatment strategy are benefit to evaluate the diverse clinical prognosis, choose optimal surgical approaches, elevate gross total resection, diminish neurological dysfunctions and restraint tumor recurrence, so as to improve the quality of life for patients.
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Affiliation(s)
- Z J Zhao
- Department of Neurosurgery, Xiangya Hospital, Central South University, Neurosurgical Medical Central, Central South University, Clinical Research Center for Skull Base Surgery and Neurooncology in Hunan Province, Changsha 410008, China
| | - X R Yuan
- Department of Neurosurgery, Xiangya Hospital, Central South University, Neurosurgical Medical Central, Central South University, Clinical Research Center for Skull Base Surgery and Neurooncology in Hunan Province, Changsha 410008, China
| | - J Yuan
- Department of Neurosurgery, Xiangya Hospital, Central South University, Neurosurgical Medical Central, Central South University, Clinical Research Center for Skull Base Surgery and Neurooncology in Hunan Province, Changsha 410008, China
| | - Y Y Xie
- Department of Neurosurgery, Xiangya Hospital, Central South University, Neurosurgical Medical Central, Central South University, Clinical Research Center for Skull Base Surgery and Neurooncology in Hunan Province, Changsha 410008, China
| | - C Tang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Neurosurgical Medical Central, Central South University, Clinical Research Center for Skull Base Surgery and Neurooncology in Hunan Province, Changsha 410008, China
| | - H Y Li
- Department of Neurosurgery, Xiangya Hospital, Central South University, Neurosurgical Medical Central, Central South University, Clinical Research Center for Skull Base Surgery and Neurooncology in Hunan Province, Changsha 410008, China
| | - G D Zhang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Neurosurgical Medical Central, Central South University, Clinical Research Center for Skull Base Surgery and Neurooncology in Hunan Province, Changsha 410008, China
| | - W X Jiang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Neurosurgical Medical Central, Central South University, Clinical Research Center for Skull Base Surgery and Neurooncology in Hunan Province, Changsha 410008, China
| | - Q Liu
- Department of Neurosurgery, Xiangya Hospital, Central South University, Neurosurgical Medical Central, Central South University, Clinical Research Center for Skull Base Surgery and Neurooncology in Hunan Province, Changsha 410008, China
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Xiong J, Yang J, Li W, Xiong H, Liu G, Wu F, Fan N, Zeng X, Huang F, Yang L, Tu X, Shi C, Yi B, Ye J, Li P, Tang C, Huang J, Hou P, Zang W, Tan S. 1411P A prospective, multicenter, real-world study of apatinib in the treatment of gastric cancer. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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37
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Tang C, Chen F, Zheng S, Wu L, Chen S, Zhu J, Li J. [Relapse of ankylosing spondylitis and its predictors after withdrawal of tumor necrosis factor-α inhibitors: a 52-week follow-up study]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:633-639. [PMID: 34134948 DOI: 10.12122/j.issn.1673-4254.2021.05.01] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To investigate the recurrence of ankylosing spondylitis (AS) that has been relieved by standard-dose adalimumab (ADA) after dose reduction or withdrawal of tumor necrosis factor-α inhibitor (TNFi) and explore the factors that predict AS occurrence. OBJECTIVE This study was conducted among 63 patients with AS who reduced the dose of or discontinued TNFi after completing at least 12 treatment cycles with ADA (40 mg/2 weeks) to achieve ASAS20 improvement with a BATH disease activity index (BASDAI) < 4 for more than 8 weeks. The patients were followed up every 12 weeks for a total of 52 weeks, and the recurrence of AS, changes of BASDAI, C-reactive protein (CRP)-based disease activity score (ASDASCRP), low back pain (LBP) score, Bath Ankylosing Spondylitis Metrology Index (BASMI), CRP and ESR were recorded and analyzed. Cox regression model and ROC curve analyses were performed to analyze the risk factors of AS relapse after dose reduction or discontinuation of TNFi. OBJECTIVE Of the 63 patients enrolled, 57 completed the follow-up study, among whom 22 (38.6%) patients experienced AS relapse within 52 weeks, with a median clinical recurrence time of 31 weeks. The recurrence rate of AS was significantly higher in patients with complete withdrawal of medications (89.0%) than in those with TNFi dose reduction and TNFi discontinuation (P < 0.001), and did not differ significantly between the latter two groups of patients (χ2= 0.071, P=0.791). The Cox regression model showed that a high baseline LBP score (HR=1.438, P=0.027) and a high BASMI score (HR=1.29, P=0.049) were the risk factors for AS recurrence after TNFi dose reduction or discontinuation, while maintenance of medication during follow-up was a protective factor (HR=0.209, P=0.001). ROC curve analysis showed that the combination of baseline LBP score, BASMI and medication during follow-up had a good predictive value for AS relapse (AUC=0.819) with a sensitivity of 0.772 and a specificity of 0.718. OBJECTIVE Dose reduction or discontinuation of TNFi is associated with a high recurrence rate of AS that has been relieved by TNFi treatment. A high LBP score, a high BASMI score and discontinuation of maintenance medication are the risk factors for AS recurrence in patients after dose reduction or withdrawal of TNFi.
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Affiliation(s)
- C Tang
- Department of Rheumatology and TCM Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - F Chen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - S Zheng
- Department of Rheumatology and TCM Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - L Wu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - S Chen
- Department of Rheumatology and TCM Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - J Zhu
- Department of Rheumatology and TCM Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - J Li
- Department of Rheumatology and TCM Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.,School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
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38
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Arthur A, Chambers M, Lane F, Bernal N, Tang C. 53 Hidradenitis suppurativa of the vulva. Am J Obstet Gynecol 2021. [DOI: 10.1016/j.ajog.2021.04.197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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39
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He Y, Tang C, Liu X, Yu F, Wei Q, Pan R, Yi W, Gao J, Xu Z, Duan J, Su H. Effect modification of the association between diurnal temperature range and hospitalisations for ischaemic stroke by temperature in Hefei, China. Public Health 2021; 194:208-215. [PMID: 33962098 DOI: 10.1016/j.puhe.2020.12.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 10/17/2020] [Accepted: 12/30/2020] [Indexed: 01/21/2023]
Abstract
OBJECTIVES Diurnal temperature range (DTR) is an important indicator of global climate change. Many epidemiological studies have reported the associations between high DTR and human health. This study investigated the association between DTR and hospitalisations for ischaemic stroke in Hefei, China. STUDY DESIGN This is an ecological study. METHODS Data of daily hospital admissions for ischaemic stroke and meteorological variables from 1 January 2009 to 31 December 2017 were collected in Hefei, China. A generalised additive model combined with distributed lag non-linear model was used to quantify the effects of DTR on ischaemic stroke. The interactive effect between DTR and temperature was explored with a non-parametric bivariate response surface model. RESULTS High DTR was associated with hospitalisations for ischaemic stroke. The adverse effect of extremely high DTR (99th percentile [17.1 °C]) occurred after 8 days (relative risk [RR] = 1.021, 95% confidence interval [CI] = 1.002, 1.041) and the maximum effect appeared after 12 days (RR = 1.029, 95% CI = 1.011, 1.046). The overall trend of the effect of DTR on ischaemic stroke was decreasing. In addition, there was a significant interactive effect of high DTR and low temperature on ischaemic stroke. CONCLUSIONS This study suggests that the impact of high DTR should be considered when formulating targeted measures to prevent ischaemic stroke, especially for those days with high DTR and low mean temperature.
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Affiliation(s)
- Y He
- Department of Epidemiology and Health Statistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, China
| | - C Tang
- Department of Epidemiology and Health Statistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, China
| | - X Liu
- Department of Epidemiology and Health Statistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, China
| | - F Yu
- Anhui Provincial Hospital, China
| | - Q Wei
- Department of Epidemiology and Health Statistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, China
| | - R Pan
- Department of Epidemiology and Health Statistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, China
| | - W Yi
- Department of Epidemiology and Health Statistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, China
| | - J Gao
- Department of Epidemiology and Health Statistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, China
| | - Z Xu
- Department of Epidemiology and Health Statistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, China
| | - J Duan
- Department of Epidemiology and Health Statistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, China
| | - H Su
- Department of Epidemiology and Health Statistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, China.
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Martin J, Sidhom M, Pryor D, Tang C, Hayden A, Miller A, Sridaran S, Trada Y, Capp A, Greer P, Keall P, Siva S, Tomaszewski J. SP-0032 Against the motion rebuttal: Brachytherapy Boost for Prostate Cancer - A Diminishing Solution. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)06472-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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41
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Tang C, Zhang W, Li H, Li L, Li Z, Cai A, Wang L, Shi D, Yan B. CNN-based qualitative detection of bone mineral density via diagnostic CT slices for osteoporosis screening. Osteoporos Int 2021; 32:971-979. [PMID: 33165630 DOI: 10.1007/s00198-020-05673-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 10/06/2020] [Indexed: 12/15/2022]
Abstract
UNLABELLED The features extracted from diagnostic computed tomography (CT) slices were used to qualitatively detect bone mineral density (BMD) through neural network models, and the evaluation results indicated that it may be a promising approach to perform osteoporosis screening in clinical practice. INTRODUCTION The purpose of this study is to design a novelty diagnostic method for osteoporosis screening by using the convolutional neural network (CNN), which can be incorporated into the procedure of routine CT diagnostic in medical examination thereby improving the osteoporosis diagnosis and reducing the patient burden. METHODS The proposed CNN-based method mainly comprises two functional modules to perform qualitative detection of BMD by analyzing the diagnostic 2D CT slice. The first functional module aims to locate and segment the ROI of diagnostic 2D CT slice, called Mark-Segmentation-Network (MS-Net). The second functional module is used to determine the category of BMD by the features of ROI, called BMD-Classification-Network (BMDC-Net). The diagnostic 2D CT slice of pedicle level in lumbar vertebrae (L1) was selected from 3D CT image in our experiments firstly. Then, the trained MS-Net can get the mark image of input original 2D CT slice, thereby obtain the segmentation image. Finally, the trained BMDC-Net can obtain the probability value of normal bone mass, low bone mass, and osteoporosis by inputting the segmentation image. On the basis of network results, the radiologists can provide preliminary qualitative diagnosis results of BMD. RESULTS Training of the network was performed on diagnostic 2D CT slices of 150 patients. The network was tested on 63 patients. Each patient corresponds to a 2D CT slice. The proposed MS-Net has an excellent segmentation precision on the shape preservation of different lumbar vertebra. The dice index (DI), pixel accuracy (PA), and intersection over union (IOU) of segmentation results are greater than 0.8. The proposed BMDC-Net achieved an accuracy of 76.65% and an area under the receiver operating characteristic curve of 0.9167. CONCLUSIONS This study proposed a novel method for qualitative detection of BMD via diagnostic CT slices and it has great potential in clinical applications for osteoporosis screening. The method can potentially reduce the manual burden to radiologists and diagnostic cost to patients.
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Affiliation(s)
- C Tang
- PLA Strategy Support Force Information Engineering University, No.62 Science Avenue, Zhengzhou, Henan Province, China
| | - W Zhang
- PLA Strategy Support Force Information Engineering University, No.62 Science Avenue, Zhengzhou, Henan Province, China
| | - H Li
- Department of Radiology in Henan Provincial People's Hospital, Zhengzhou, Henan Province, China
| | - L Li
- PLA Strategy Support Force Information Engineering University, No.62 Science Avenue, Zhengzhou, Henan Province, China
| | - Z Li
- PLA Strategy Support Force Information Engineering University, No.62 Science Avenue, Zhengzhou, Henan Province, China
| | - A Cai
- PLA Strategy Support Force Information Engineering University, No.62 Science Avenue, Zhengzhou, Henan Province, China
| | - L Wang
- PLA Strategy Support Force Information Engineering University, No.62 Science Avenue, Zhengzhou, Henan Province, China
| | - D Shi
- Department of Radiology in Henan Provincial People's Hospital, Zhengzhou, Henan Province, China
| | - B Yan
- PLA Strategy Support Force Information Engineering University, No.62 Science Avenue, Zhengzhou, Henan Province, China.
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Prado L, Tang C, Shaligram S, Liang R, Winkler E, Su H. Abstract 63: Mutation of Platelet-Derived Growth Factor Receptor B Causes Cerebrovascular Malformation and Enhances Brain Arteriovenous Malformation Severity in Mice. Stroke 2021. [DOI: 10.1161/str.52.suppl_1.63] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background and Purpose:
Deletion of
Endoglin (Eng),
an arteriovenous malformation (AVM) causative gene causes AVM in the brain angiogenic region. Reduction of pericytes is correlate with brain AVM hemorrhage. The platelet-derived growth factor B and its receptor β (PDGF-B/PDGFRβ) play important roles in regulating pericyte recruitment during angiogenesis. We
hypothesize
that mutation of PDGFRβ causes cerebrovascular malformation and enhances bAVM severity in
Eng
mutant mice.
Methods:
Three mouse models were used: (1)
Pdgfrβ
F7 (F7) mice that have mutations disrupting Pdgfrβ signaling, (2)
Pdgfb
-icreER;
Eng
f
/f
mice that have
Pdgfb
promoter driving, tamoxifen (TM) inducible cre expression in ECs and an floxed
Eng
gene; and (3)
Pdgfb
-icreER;
Eng
f
/f
;F7
+/-
mice. Brain angiogenesis was induced by intra-brain injection of an adeno-associated viral vector expressing vascular endothelial growth factor (AAV-VEGF). Brain AVMs were induced in
Pdgfb
-icreER;
Eng
f
/f
and
Pdgfb
-icreER;
Eng
f
/f
;F7 mice by TM induced EC
Eng
deletion and intra-brain AAV-VEGF injection. Brain AVM phenotypes were analyzed 8-weeks after model induction by latex vascular cast to detect arteriovenous shunts and macroscopic level of AVMs, immunostaining and Prussian blue staining to quantify dysplasia vessels and hemorrhage.
Results:
Compared to WT mice, F7
+/-
and F7
+/+
mice have more dysplastic vessels and fewer vascular pericyte before and after AAV-VEGF injection. F7
+/-
and F7
+/+
mice showed hemorrhage on the AAV-VEGF injection sites and AVM like vessels (a few arteriovenous shunts) in 16% F7
+/-
and 66% of F7
+/+
mice.
Pdgfb
-icreER;
Eng
f
/f
mice showed dysplastic vessels and hemorrhage at AAV-VEGF injection sites. Compared to
Pdgfb
-icreER;
Eng
f
/f
mice,
Pdgfb
-icreER;
Eng
f
/f
;F7
+/-
had a higher penetrance of bAVM (71% vs 50%) and more dysplastic vessels.
Conclusion:
F7 mutation cause AVM like structure in mouse brain and exacerbates bAVM phenotype in
Eng
mutant mice.
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Affiliation(s)
- Leandro Prado
- Anesthesia and Perioperative Care, Univ of California, San Francisco, San Francisco, CA
| | - Chaoliang Tang
- Anesthesia and Perioperative Care, Univ of California, San Francisco, San Francisco, CA
| | - Sonali Shaligram
- Anesthesia and Perioperative Care, UC, San Francisco, San Francisco, CA
| | - Rich Liang
- Anesthesia and Perioperative Care, UCSF, San Francisco, CA
| | | | - Hua Su
- Anesthesia and Perioperative Care, HUA SU, San Francisco, CA
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Tang C, Sit C, Kennedy D, Martin F, Lane S, Mak D. Improving referral of vertebral fractures from radiology to the fracture liaison service. Clin Radiol 2020. [DOI: 10.1016/j.crad.2020.11.110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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44
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Du J, Yin G, Hu Y, Shi S, Jiang J, Song X, Zhang Z, Wei Z, Tang C, Lyu H. Coicis semen protects against focal cerebral ischemia-reperfusion injury by inhibiting oxidative stress and promoting angiogenesis via the TGFβ/ALK1/Smad1/5 signaling pathway. Aging (Albany NY) 2020; 13:877-893. [PMID: 33290255 PMCID: PMC7835068 DOI: 10.18632/aging.202194] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Accepted: 09/28/2020] [Indexed: 12/16/2022]
Abstract
Background: Ischemic stroke is a devastating disease that causes long-term disability. However, its pathogenesis is unclear, and treatments for ischemic stroke are limited. Recent studies indicate that oxidative stress is involved in the pathological progression of ischemic stroke and that angiogenesis participates in recovery from ischemic stroke. Furthermore, previous studies have shown that Coicis Semen has antioxidative and anti-inflammatory effects in a variety of diseases. In the present study, we investigated whether Coicis Semen has a protective effect against ischemic stroke and the mechanism of this protective effect. Results: Coicis Semen administration significantly decreased the infarct volume and mortality and alleviated neurological deficits at 3, 7 and 14 days after MCAO. In addition, cerebral edema at 3 days poststroke was ameliorated by Coicis Semen treatment. DHE staining showed that ROS levels in the vehicle group were increased at 3 days after reperfusion and then gradually declined, but Coicis Semen treatment reduced ROS levels. The levels of GSH and SOD in the brain were increased by Coicis Semen treatment, while MDA levels were reduced. Furthermore, Coicis Semen treatment decreased the extravasation of EB dye in MCAO mouse brains and elevated expression of the tight junction proteins ZO-1 and Occludin. Double immunofluorescence staining and western blot analysis showed that the expression of angiogenesis markers and TGFβ pathway-related proteins was increased by Coicis Semen administration. Consistent with the in vivo results, cytotoxicity assays showed that Coicis Semen substantially promoted HUVEC survival following OGD/RX in vitro. Additionally, though LY2109761 inhibited the activation of TGFβ signaling in OGD/RX model animals, Coicis Semen cotreatment markedly reversed the downregulation of TGFβ pathway-related proteins and increased VEGF levels. Methods: Adult male wild-type C57BL/6J mice were used to develop a middle cerebral artery occlusion (MCAO) stroke model. Infarct size, neurological deficits and behavior were evaluated on days 3, 7 and 14 after staining. In addition, changes in superoxide dismutase (SOD), GSH and malondialdehyde (MDA) levels were detected with a commercial kit. Blood-brain barrier (BBB) permeability was assessed with Evans blue (EB) dye. Western blotting was also performed to measure the levels of tight junction proteins of the BBB. Additionally, ELISA was performed to measure the level of VEGF in the brain. The colocalization of CD31, angiogenesis markers, and Smad1/5 was assessed by double immunofluorescent staining. TGFβ pathway-related proteins were measured by western blotting. Furthermore, the cell viability of human umbilical vein endothelial cells (HUVECs) following oxygen-glucose deprivation/reoxygenation (OGD/RX) was measured by Cell Counting Kit (CCK)-8 assay. Conclusions: Coicis Semen treatment alleviates brain damage induced by ischemic stroke through inhibiting oxidative stress and promoting angiogenesis by activating the TGFβ/ALK1 signaling pathway.
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Affiliation(s)
- Jin Du
- Department of Neurosurgery, The People’s Hospital of Chizhou, Chizhou 247000, Anhui, China
| | - Guobing Yin
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, Anhui, China
| | - Yida Hu
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, China
| | - Si Shi
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, China
| | - Jiazhen Jiang
- Department of Emergency, Huashan Hospital North, Fudan University, Shanghai 201907, China
| | - Xiaoyan Song
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China
| | - Zhetao Zhang
- Department of Pharmacy, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230036, Anhui, China
| | - Zeyuan Wei
- Department of Pharmacy, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230036, Anhui, China
| | - Chaoliang Tang
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, Anhui, China
| | - Haiyan Lyu
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China
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Huang J, Lyu H, Huo K, Do Prado LB, Tang C, Wang Z, Li Q, Wong J, Su H. Bone Fracture Enhanced Blood-Brain Barrier Breakdown in the Hippocampus and White Matter Damage of Stroke Mice. Int J Mol Sci 2020; 21:ijms21228481. [PMID: 33187248 PMCID: PMC7697771 DOI: 10.3390/ijms21228481] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/30/2020] [Accepted: 11/09/2020] [Indexed: 02/06/2023] Open
Abstract
Background: Tibia fracture (BF) before stroke shortly causes long-term post-stroke memory dysfunction in mice. The mechanism is unclear. We hypothesize that BF enhances neuroinflammation and blood brain barrier (BBB) breakdown in the hippocampus and white matter (WM) damage. Methods: Mice were assigned to groups: BF, stroke, BF+stroke (BF 6 h before stroke) and sham. BBB integrity was analyzed 3 days after the surgeries and WM injury was analyzed 3 days and 8 weeks after the surgeries. Results: Stroke and BF+stroke groups had more activated microglia/macrophages and lower levels of claudin-5 in the ipsilateral hippocampi than the BF group. BF+stroke group had the highest number microglia/macrophages and the lowest level of claudin-5 among all groups and had fewer pericytes than BF group. Stroke and BF+stroke groups had smaller WM areas in the ipsilateral basal ganglia than the sham group 8 weeks after the injuries. The BF+stroke group also had smaller WM areas in the ipsilateral than sham and BF groups 3 days after the injuries and in the contralateral basal ganglia than stroke and BF groups 8 weeks after the injuries. Conclusions: BF exacerbates neuroinflammation and BBB leakage in the hippocampus and WM damage in basal ganglia, which could contribute to the long-lasting memory dysfunction in BF+stroke mice.
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Affiliation(s)
- Jinhao Huang
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA; (J.H.); (H.L.); (K.H.); (L.B.D.P.); (C.T.); (Z.W.); (Q.L.); (J.W.)
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA
| | - Haiyan Lyu
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA; (J.H.); (H.L.); (K.H.); (L.B.D.P.); (C.T.); (Z.W.); (Q.L.); (J.W.)
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA
| | - Kang Huo
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA; (J.H.); (H.L.); (K.H.); (L.B.D.P.); (C.T.); (Z.W.); (Q.L.); (J.W.)
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA
| | - Leandro B. Do Prado
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA; (J.H.); (H.L.); (K.H.); (L.B.D.P.); (C.T.); (Z.W.); (Q.L.); (J.W.)
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA
| | - Chaoliang Tang
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA; (J.H.); (H.L.); (K.H.); (L.B.D.P.); (C.T.); (Z.W.); (Q.L.); (J.W.)
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA
| | - Zhanqiang Wang
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA; (J.H.); (H.L.); (K.H.); (L.B.D.P.); (C.T.); (Z.W.); (Q.L.); (J.W.)
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA
| | - Qifeng Li
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA; (J.H.); (H.L.); (K.H.); (L.B.D.P.); (C.T.); (Z.W.); (Q.L.); (J.W.)
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA
| | - Julia Wong
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA; (J.H.); (H.L.); (K.H.); (L.B.D.P.); (C.T.); (Z.W.); (Q.L.); (J.W.)
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA
| | - Hua Su
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA; (J.H.); (H.L.); (K.H.); (L.B.D.P.); (C.T.); (Z.W.); (Q.L.); (J.W.)
- Center for Cerebrovascular Research, University of California, San Francisco, CA 94143, USA
- Correspondence: ; Tel.: +1-628-206-3162
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Chen D, Chang J, Heymach J, Tang C, Nguyen Q, Welsh J. Secondary Analysis of a Randomized Phase 1/2 Trial of Pembrolizumab with or without Radiation Therapy for Metastatic Non-small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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47
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Pasalic D, Barocas D, Zhao Z, Huang L, Koyama T, Tang C, Penson D, Hoffman K. Patient-Reported Outcomes through Five Years following External Beam Radiotherapy or External Beam Radiotherapy with Low-Dose-Rate Brachytherapy Boost for Localized Prostate Cancer. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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48
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Dalwadi S, Thames H, Tang C, Crook J, Sanders J, Blanchard P, Ciezki J, Keyes M, Merrick G, Catton C, Razlee H, Stock R, Sullivan F, Millar J, Frank S. Is The Phoenix Criterion Of Biochemical Failure (BF) In Men Treated With Low-Dose Rate Prostate Brachytherapy Appropriate? Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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49
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Sanders J, Venkatesan A, Davis J, Kudchadker R, Tang C, Bruno T, Ma J, Frank S. OC-1040: Computer aided brachytherapy: assisting the practice of prostate brachytherapy with machine learning. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)01977-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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50
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Kim M, Maldonado J, El Alam M, Pandey P, Nguyen Q, Moon B, Bird J, Satcher R, Lewis V, Lin P, Tang C, Koong A, Colbert L. Retreatment after Single Fraction Palliative Bone Metastasis Treatment in the Modern Era. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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