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Luo W, He W, Liang L, Liang Y, Zhang S, Liao G. The 'D-M-C' strategy for conventional ameloblastoma of the mandible: a retrospective study. Int J Oral Maxillofac Surg 2024:S0901-5027(24)00091-2. [PMID: 38670888 DOI: 10.1016/j.ijom.2024.03.014] [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: 12/01/2023] [Revised: 03/08/2024] [Accepted: 03/12/2024] [Indexed: 04/28/2024]
Abstract
The purpose of this multicentre study was to evaluate the efficacy of the 'dredging-marsupialization-curettage' (D-M-C) strategy in the treatment of conventional intraosseous ameloblastoma of the mandible. A total of 31 patients from three institutions, who had a pathological diagnosis of conventional ameloblastoma of the mandible, were treated with the D-M-C strategy. The surgical protocol comprised a dredging and marsupialization (D-M) step, with additional D-M steps as required. The patients then underwent curettage (C) once an obvious effect of the D-M step had been achieved during follow-up. Eight patients were followed up for ≥36 months but <60 months, while 23 were followed up for ≥60 months. Nineteen of the 23 patients followed up for ≥60 months were disease-free at the last follow-up, with no evidence of recurrence. The D-M step is effective for reducing the tumour size and preserving vital structures. The D-M-C surgical strategy may be a feasible treatment option for conventional ameloblastoma of the mandible.
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Affiliation(s)
- W Luo
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China; Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - W He
- Oral and Maxillofacial Surgery Department of Second Affiliated Hospital, School of Medicine, Chinese University of Hong Kong, Shenzhen, and Longgang District People's Hospital of Shenzhen, Shenzhen, China
| | - L Liang
- Department of Oral and Maxillofacial Surgery, Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, China
| | - Y Liang
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China; Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - S Zhang
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China; Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - G Liao
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China; Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China.
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Zhang J, Xiao Y, Li K, Chen Y, Liu S, Luo W, Liu X, Liu S, Wang Y, Li SY, Pan A. Microscopy aided detection of the self-intercalation mechanism and in situ electronic properties in chromium selenide. Nanoscale 2024; 16:8028-8035. [PMID: 38546273 DOI: 10.1039/d4nr00048j] [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] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Two-dimensional (2D) chromium-based self-intercalated materials Cr1+nX2 (0 ≤ n ≤ 1, X = S, Se, Te) have attracted much attention because of their tunable magnetism with good environmental stability. Intriguingly, the magnetic and electrical properties of the materials can be effectively tuned by altering the coverage and spatial arrangement of the intercalated Cr (ic-Cr) within the van der Waals gap, contributing to different stoichiometries. Several different Cr1+nX2 systems have been widely investigated recently; however, those with the same stoichiometric ratio (such as Cr1.25Te2) were reported to exhibit disparate magnetic properties, which still lacks explanation. Therefore, a systematic in situ study of the mechanisms with microscopy techniques is in high demand to look into the origin of these discrepancies. Herein, 2D self-intercalated Cr1+nSe2 nanoflakes were synthesized as a platform to conduct the characterization. Combining scanning transmission electron microscopy (STEM) and scanning tunneling microscopy (STM), we studied in depth the microscopic structure and local electronic properties of the Cr1+nSe2 nanoflakes. The self-intercalation mechanism of ic-Cr and local stoichiometric-ratio variation in a Cr1+nSe2 ultrathin nanoflake is clearly detected at the nanometer scale. Scanning tunneling spectroscopy (STS) measurements indicate that Cr1.5Se2/Cr2Se2 and Cr1.25Se2 exhibit conductive and semiconductive behaviors, respectively. The STM tip manipulation method is further applied to manipulate the microstructure of Cr1+nSe2, which successfully produces clean zigzag-type boundaries. Our systematic microscopy study paves the way for the in-depth study of the magnetic mechanism of 2D self-intercalated magnets at the nano/micro scale and the development of new magnetic and spintronic devices.
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Affiliation(s)
- Jinding Zhang
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, Hunan Institute of Optoelectronic Integration and College of Materials Science and Engineering, Hunan University, Changsha 410082, People's Republic of China.
| | - Yulong Xiao
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, Hunan Institute of Optoelectronic Integration and College of Materials Science and Engineering, Hunan University, Changsha 410082, People's Republic of China.
| | - Kaihui Li
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, Hunan Institute of Optoelectronic Integration and College of Materials Science and Engineering, Hunan University, Changsha 410082, People's Republic of China.
| | - Ying Chen
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, Hunan Institute of Optoelectronic Integration and College of Materials Science and Engineering, Hunan University, Changsha 410082, People's Republic of China.
| | - Songlong Liu
- School of Physics and Electronics, Hunan University, Changsha 410082, People's Republic of China
| | - Wenjie Luo
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, Hunan Institute of Optoelectronic Integration and College of Materials Science and Engineering, Hunan University, Changsha 410082, People's Republic of China.
| | - Xueying Liu
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, Hunan Institute of Optoelectronic Integration and College of Materials Science and Engineering, Hunan University, Changsha 410082, People's Republic of China.
| | - Shiying Liu
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, Hunan Institute of Optoelectronic Integration and College of Materials Science and Engineering, Hunan University, Changsha 410082, People's Republic of China.
| | - Yiliu Wang
- School of Physics and Electronics, Hunan University, Changsha 410082, People's Republic of China
| | - Si-Yu Li
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, Hunan Institute of Optoelectronic Integration and College of Materials Science and Engineering, Hunan University, Changsha 410082, People's Republic of China.
- Greater Bay Area Institute for Innovation, Hunan University, Guangzhou 511300, People's Republic of China
| | - Anlian Pan
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, Hunan Institute of Optoelectronic Integration and College of Materials Science and Engineering, Hunan University, Changsha 410082, People's Republic of China.
- School of Physics and Electronics, Hunan Normal University, Changsha 410081, People's Republic of China.
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Parra Bravo C, Giani AM, Perez JM, Zhao Z, Wan Y, Samelson AJ, Wong MY, Evangelisti A, Cordes E, Fan L, Ye P, Zhu D, Pozner T, Mercedes M, Patel T, Yarahmady A, Carling GK, Sterky FH, Lee VMY, Lee EB, DeTure M, Dickson DW, Sharma M, Mok SA, Luo W, Zhao M, Kampmann M, Gong S, Gan L. Human iPSC 4R tauopathy model uncovers modifiers of tau propagation. Cell 2024:S0092-8674(24)00306-4. [PMID: 38582079 DOI: 10.1016/j.cell.2024.03.015] [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: 06/10/2023] [Revised: 01/12/2024] [Accepted: 03/12/2024] [Indexed: 04/08/2024]
Abstract
Tauopathies are age-associated neurodegenerative diseases whose mechanistic underpinnings remain elusive, partially due to a lack of appropriate human models. Here, we engineered human induced pluripotent stem cell (hiPSC)-derived neuronal lines to express 4R Tau and 4R Tau carrying the P301S MAPT mutation when differentiated into neurons. 4R-P301S neurons display progressive Tau inclusions upon seeding with Tau fibrils and recapitulate features of tauopathy phenotypes including shared transcriptomic signatures, autophagic body accumulation, and reduced neuronal activity. A CRISPRi screen of genes associated with Tau pathobiology identified over 500 genetic modifiers of seeding-induced Tau propagation, including retromer VPS29 and genes in the UFMylation cascade. In progressive supranuclear palsy (PSP) and Alzheimer's Disease (AD) brains, the UFMylation cascade is altered in neurofibrillary-tangle-bearing neurons. Inhibiting the UFMylation cascade in vitro and in vivo suppressed seeding-induced Tau propagation. This model provides a robust platform to identify novel therapeutic strategies for 4R tauopathy.
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Affiliation(s)
- Celeste Parra Bravo
- Helen and Robert Appel Alzheimer's Disease Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA; Neuroscience Graduate Program, Weill Cornell Medicine, New York, NY 10021, USA
| | - Alice Maria Giani
- Helen and Robert Appel Alzheimer's Disease Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Jesus Madero Perez
- Helen and Robert Appel Alzheimer's Disease Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Zeping Zhao
- Helen and Robert Appel Alzheimer's Disease Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Yuansong Wan
- Helen and Robert Appel Alzheimer's Disease Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Avi J Samelson
- Institute for Neurodegenerative Diseases, Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Man Ying Wong
- Helen and Robert Appel Alzheimer's Disease Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Alessandro Evangelisti
- Helen and Robert Appel Alzheimer's Disease Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Ethan Cordes
- Helen and Robert Appel Alzheimer's Disease Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Li Fan
- Helen and Robert Appel Alzheimer's Disease Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Pearly Ye
- Helen and Robert Appel Alzheimer's Disease Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Daphne Zhu
- Helen and Robert Appel Alzheimer's Disease Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Tatyana Pozner
- Helen and Robert Appel Alzheimer's Disease Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Maria Mercedes
- Helen and Robert Appel Alzheimer's Disease Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Tark Patel
- Department of Biochemistry, University of Alberta, Edmonton, AB T6G 2H7, Canada
| | - Allan Yarahmady
- Department of Biochemistry, University of Alberta, Edmonton, AB T6G 2H7, Canada
| | - Gillian K Carling
- Helen and Robert Appel Alzheimer's Disease Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Fredrik H Sterky
- Department of Laboratory Medicine, University of Gothenburg, 41345 Gothenburg, Sweden; Department of Clinical Chemistry, Sahlgrenska University Hospital, 41345 Gothenburg, Sweden
| | - Virginia M Y Lee
- Center for Neurodegenerative Disease Research, Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Edward B Lee
- Institute of Aging, Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Michael DeTure
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Dennis W Dickson
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Manu Sharma
- Helen and Robert Appel Alzheimer's Disease Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Sue-Ann Mok
- Department of Biochemistry, University of Alberta, Edmonton, AB T6G 2H7, Canada
| | - Wenjie Luo
- Helen and Robert Appel Alzheimer's Disease Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Mingrui Zhao
- Helen and Robert Appel Alzheimer's Disease Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Martin Kampmann
- Institute for Neurodegenerative Diseases, Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Shiaoching Gong
- Helen and Robert Appel Alzheimer's Disease Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA.
| | - Li Gan
- Helen and Robert Appel Alzheimer's Disease Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA; Neuroscience Graduate Program, Weill Cornell Medicine, New York, NY 10021, USA.
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Wu K, Luo W, Xie Z, Guo D, Zhang Z, Hong R. Ensemble Prototype Network For Weakly Supervised Temporal Action Localization. IEEE Trans Neural Netw Learn Syst 2024; PP:1-15. [PMID: 38530719 DOI: 10.1109/tnnls.2024.3377468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
Weakly supervised temporal action localization (TAL) aims to localize the action instances in untrimmed videos using only video-level action labels. Without snippet-level labels, this task should be hard to distinguish all snippets with accurate action/background categories. The main difficulties are the large variations brought by the unconstraint background snippets and multiple subactions in action snippets. The existing prototype model focuses on describing snippets by covering them with clusters (defined as prototypes). In this work, we argue that the clustered prototype covering snippets with simple variations still suffers from the misclassification of the snippets with large variations. We propose an ensemble prototype network (EPNet), which ensembles prototypes learned with consensus-aware clustering. The network stacks a consensus prototype learning (CPL) module and an ensemble snippet weight learning (ESWL) module as one stage and extends one stage to multiple stages in an ensemble learning way. The CPL module learns the consensus matrix by estimating the similarity of clustering labels between two successive clustering generations. The consensus matrix optimizes the clustering to learn consensus prototypes, which can predict the snippets with consensus labels. The ESWL module estimates the weights of the misclassified snippets using the snippet-level loss. The weights update the posterior probabilities of the snippets in the clustering to learn prototypes in the next stage. We use multiple stages to learn multiple prototypes, which can cover the snippets with large variations for accurate snippet classification. Extensive experiments show that our method achieves the state-of-the-art weakly supervised TAL methods on two benchmark datasets, that is, THUMOS'14, ActivityNet v1.2, and ActivityNet v1.3 datasets.
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Long X, Zheng Y, Hu J, Wang R, Luo W, Han K, Jiao F. F-free etching and ingenious construction of hydrogel layer-prepared MXene membranes for oily wastewater separation. Chem Commun (Camb) 2024. [PMID: 38456735 DOI: 10.1039/d4cc00404c] [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: 03/09/2024]
Abstract
A strategy for the preparation of hydrogel layer MXene membranes by an F-free method was proposed. It maintained high permeance (2686.1 L m-2 h-1 bar-1) and separation efficiency (99.99%) even after 300 min of emulsion separation. The membrane resisted harsh chemical and microbiological environments and efficiently treated actual oily wastewater.
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Affiliation(s)
- Xuan Long
- College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha 410083, P. R. China.
| | - Yijian Zheng
- College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha 410083, P. R. China.
| | - Jun Hu
- College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha 410083, P. R. China.
| | - Rongtong Wang
- College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha 410083, P. R. China.
| | - Wenjie Luo
- College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha 410083, P. R. China.
| | - Kai Han
- College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha 410083, P. R. China.
| | - Feipeng Jiao
- College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha 410083, P. R. China.
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Luo J, Zhang SY, Luo W, Jiang LL, Yuan JP, Yan DD. [Incubation method and application time of hexamine silver working solution on the staining effect of fungal hexamine silver]. Zhonghua Bing Li Xue Za Zhi 2024; 53:296-298. [PMID: 38433060 DOI: 10.3760/cma.j.cn112151-20230901-00121] [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: 03/05/2024]
Affiliation(s)
- J Luo
- Department of Pathology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - S Y Zhang
- Department of Pathology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - W Luo
- Department of Pathology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - L L Jiang
- Department of Pathology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - J P Yuan
- Department of Pathology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - D D Yan
- Department of Pathology, Renmin Hospital of Wuhan University, Wuhan 430060, China
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Liu F, Li X, Jiang ZL, Luo W, Gao H. [Comparing the impact of left bundle branch area pacing and traditional left ventricular pacing on right heart function following dual-chamber pacemaker implantation]. Zhonghua Xin Xue Guan Bing Za Zhi 2024; 52:180-184. [PMID: 38326070 DOI: 10.3760/cma.j.cn112148-20230912-00153] [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: 02/09/2024]
Abstract
Objective: To compare the effects of left bundle branch area pacing (LBBaP) versus traditional right ventricular pacing (RVP) on left ventricular function in patients after dual-chamber pacemaker implantation. Methods: A retrospective cohort study was conducted on patients who underwent dual-chamber pacemaker implantation from March 2017 to April 2021 in Beijing Anzhen Hospital. The patients were divided into the LBBaP group and RVP group based on the placement of the ventricular lead. Follow-up was conducted until March 2022, comparing baseline and follow-up echocardiographic parameters, pacing parameters, and the incidence and timing of complications between the two groups. The complications included ventricular electrode perforation, dislocation, pericardial effusion, tricuspid valve perforation, etc. Results: A total of 163 patients aged (68.3±13.5) years were included, including 82 (50.3%) men, with 80 patients in the LBBaP group and 83 in the RVP group. Baseline left ventricular end-diastolic diameter ((50.49±4.95) mm vs. (47.43±8.15) mm, P=0.01) and left atrium (LA) ((33.14±5.94) mm vs. (30.18±3.92) mm, P=0.001) in the LBBaP group were significantly higher than those in the RVP group. Follow-up LA diameter ((37.10±6.70) mm vs. (40.10±8.90) mm, P=0.016) showed a statistically significant difference in the LBBaP group compared to the RVP group. There was no statistically significant difference between the two groups in baseline QRS duration(P=0.490). Postoperative QRS duration in the LBBaP group was significantly lower ((110.69±24.01) ms vs. (139.65±29.85) ms, P<0.010). Intraoperative threshold in the LBBaP group was significantly higher ((0.83±0.32) V/0.48 ms vs. (0.71±0.23) V/0.48 ms, P=0.004), while impedance was lower ((754.53±205.59) Ω vs. (905.41±302.75) Ω, P<0.01). Comparing with the RVP group, postoperative ventricular pacing ratio (VP) ((87.39±20.92) % vs. (79.49±25.76) %, P=0.034), threshold ((0.90±0.38) V/0.48 ms vs. (0.69±0.27) V/0.48 ms, P<0.01) in the LBBaP group were higher, and impedance ((507.45±77.37) Ω vs. (620.52±197.29) Ω, P<0.01) in the LBBaP group was lower. Postoperative follow-up period was 5 to 51 months, with a median follow-up time of 17 months. No statistically significant difference in overall complications between the LBBaP and RVP groups was found (13.8% (11/80) vs. 7.2% (6/83), P>0.05). The median time to occurrence of complications after surgery was significantly earlier in the LBBaP group (29.74 (95%CI 27.21-32.26) months vs. 46.17 (95%CI 42.48-49.86) months, P=0.030). Conclusion: LBBaP demonstrates more stable pacing parameters, substantial improvement in clinical left ventricular function, with a relatively higher threshold compared to traditional RVP, and complications occurs relatively early.
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Affiliation(s)
- F Liu
- Deparment of Cardiology, Emergency Coronary Artery Unit, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - X Li
- Deparment of Cardiology, Emergency Coronary Artery Unit, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Z L Jiang
- Deparment of Cardiology, Emergency Coronary Artery Unit, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - W Luo
- Deparment of Cardiology, Emergency Coronary Artery Unit, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - H Gao
- Deparment of Cardiology, Emergency Coronary Artery Unit, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
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Luo W, Guo Z, Ye L, Wu S, Jiang Y, Xu P, Wang H, Qian J, Zhou X, Tang H, Ge Y, Guan J, Yang Z, Nie H. Electrical-Driven Directed-Evolution of Copper Nanowires Catalysts for Efficient Nitrate Reduction to Ammonia. Small 2024:e2311336. [PMID: 38385851 DOI: 10.1002/smll.202311336] [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] [Received: 12/05/2023] [Revised: 02/02/2024] [Indexed: 02/23/2024]
Abstract
The electrocatalytic conversion of nitrate (NO3 - ) to NH3 (NO3 RR) at ambient conditions offers a promising alternative to the Haber-Bosch process. The pivotal factors in optimizing the proficient conversion of NO3 - into NH3 include enhancing the adsorption capabilities of the intermediates on the catalyst surface and expediting the hydrogenation steps. Herein, the Cu/Cu2 O/Pi NWs catalyst is designed based on the directed-evolution strategy to achieve an efficient reduction of NO3 ‾. Benefiting from the synergistic effect of the OV -enriched Cu2 O phase developed during the directed-evolution process and the pristine Cu phase, the catalyst exhibits improved adsorption performance for diverse NO3 RR intermediates. Additionally, the phosphate group anchored on the catalyst's surface during the directed-evolution process facilitates water electrolysis, thereby generating Hads on the catalyst surface and promoting the hydrogenation step of NO3 RR. As a result, the Cu/Cu2 O/Pi NWs catalyst shows an excellent FE for NH3 (96.6%) and super-high NH3 yield rate of 1.2 mol h-1 gcat. -1 in 1 m KOH and 0.1 m KNO3 solution at -0.5 V versus RHE. Moreover, the catalyst's stability is enhanced by the stabilizing influence of the phosphate group on the Cu2 O phase. This work highlights the promise of a directed-evolution approach in designing catalysts for NO3 RR.
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Affiliation(s)
- Wenjie Luo
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Zeyi Guo
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Ling Ye
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Shilu Wu
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Yingyang Jiang
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Peng Xu
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Hui Wang
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Jinjie Qian
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Xuemei Zhou
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Hao Tang
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Yongjie Ge
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Jia Guan
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
- Institute of New Materials & Industrial Technology, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Zhi Yang
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Huagui Nie
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China
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9
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Xu K, Chen J, Zhu M, Zhang X, Wu S, Luo W, Ye L. Exploring HIV-1 transmission features among older individuals in developed eastern China. AIDS Res Hum Retroviruses 2024. [PMID: 38386498 DOI: 10.1089/aid.2023.0066] [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: 02/24/2024] Open
Abstract
The number of newly reported HIV-1 infections among older individuals (aged ≥50 years) has increased rapidly in Hangzhou, a central city in the Yangtze River Delta region of China. To provide a scientific basis for prevention and intervention strategies targeted at older individuals in Hangzhou, an epidemiological survey combined with molecular transmission network analysis was conducted. A total of 2899 individuals with newly confirmed HIV-1 infections, including 635 older individuals and 2264 younger individuals (aged <50 years), were enrolled in this study. Among older individuals, heterosexual contact was the predominant mode of HIV-1 transmission. Additionally, it was observed that older individuals with lower levels of education exhibited a higher susceptibility to HIV-1 infection. The analysis of transmission network which was inferred using HIV-TRACE algorithm revealed that the newly diagnosed HIV-1 infections among older individuals in Hangzhou exhibited a pattern of scattered transmission, with key clusters primarily located in non-main urban areas. The predominant mode of transmission in these areas was non-marital and non-commercial or non-marital and commercial heterosexual transmission. Notably, the study highlighted a significant proportion of older individuals (73.3%, 11/15) within B subtype. Multivariate logistic regression analysis further revealed that the subtype B was a significant factor associated with older individuals having ≥3 node degrees in the network, occurring 5.55 times more frequent than subtype CRF07_BC (95% CI = 1.17-26.22, p = 0.031). Furthermore, the lower CD4 levels observed among older individuals underscored the challenge of late diagnosis in Hangzhou. Taken together, it is imperative to test and intervene for high-risk older individuals. To tackle this issue effectively, it is essential to enhance the detection of the B subtype and implement targeted interventions in key clusters within non-main urban areas. Additionally, proactive measures should be implemented to address the challenge of late diagnosis in Hangzhou by promoting widespread testing among the older individuals, particularly in priority areas.
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Affiliation(s)
- Ke Xu
- Hangzhou Center for Disease Control and Prevention, 117870, Hangzhou, Zhejiang, China;
| | - Junfang Chen
- Hangzhou Center for Disease Control and Prevention, 117870, Hangzhou, Zhejiang, China;
| | - Min Zhu
- Hangzhou Center for Disease Control and Prevention, 117870, 568 Mingshi Road, Jianqiao Town, Shangcheng District, Hangzhou, Hangzhou, China, 310021;
| | - Xingliang Zhang
- Hangzhou Center for Disease Control and Prevention, 117870, Hangzhou, Zhejiang, China;
| | - Sisheng Wu
- Hangzhou Center for Disease Control and Prevention, 117870, Hangzhou, Zhejiang, China;
| | - Wenjie Luo
- Hangzhou Center for Disease Control and Prevention, 117870, Hangzhou, Zhejiang, China;
| | - Ling Ye
- Hangzhou Center for Disease Control and Prevention, 117870, Hangzhou, Zhejiang, China;
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10
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Gao K, He Z, Xiong J, Chen Q, Lai B, Liu F, Chen P, Chen M, Luo W, Huang J, Ding W, Wang H, Pu Y, Zheng L, Jiao Y, Zhang M, Tang Z, Yue Q, Yang D, Yan T. Population structure and adaptability analysis of Schizothorax o'connori based on whole-genome resequencing. BMC Genomics 2024; 25:145. [PMID: 38321406 PMCID: PMC10845765 DOI: 10.1186/s12864-024-09975-9] [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: 07/16/2023] [Accepted: 01/04/2024] [Indexed: 02/08/2024] Open
Abstract
BACKGROUND Schizothorax o'connori is an endemic fish distributed in the upper and lower reaches of the Yarlung Zangbo River in China. It has experienced a fourth round of whole gene replication events and is a good model for exploring the genetic differentiation and environmental adaptability of fish in the Qinghai-Tibet Plateau. The uplift of the Qinghai-Tibet Plateau has led to changes in the river system, thereby affecting gene exchange and population differentiation between fish populations. With the release of fish whole genome data, whole genome resequencing has been widely used in genetic evolutionary analysis and screening of selected genes in fish, which can better elucidate the genetic basis and molecular environmental adaptation mechanisms of fish. Therefore, our purpose of this study was to understand the population structure and adaptive characteristics of S. o'connori using the whole-genome resequencing method. RESULTS The results showed that 23,602,746 SNPs were identified from seven populations, mostly distributed on chromosomes 2 and 23. There was no significant genetic differentiation between the populations, and the genetic diversity was relatively low. However, the Zangga population could be separated from the Bomi, Linzhi, and Milin populations in the cluster analysis. Based on historical dynamics analysis of the population, the size of the ancestral population of S. o'connori was affected by the late accelerated uplift of the Qinghai Tibet Plateau and the Fourth Glacial Age. The selected sites were mostly enriched in pathways related to DNA repair and energy metabolism. CONCLUSION Overall, the whole-genome resequencing analysis provides valuable insights into the population structure and adaptive characteristics of S. o'connori. There was no obvious genetic differentiation at the genome level between the S. o'connori populations upstream and downstream of the Yarlung Zangbo River. The current distribution pattern and genetic diversity are influenced by the late accelerated uplift of the Qinghai Tibet Plateau and the Fourth Ice Age. The selected sites of S. o'connori are enriched in the energy metabolism and DNA repair pathways to adapt to the low temperature and strong ultraviolet radiation environment at high altitude.
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Affiliation(s)
- Kuo Gao
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Zhi He
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Jinxin Xiong
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Qiqi Chen
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Bolin Lai
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Fei Liu
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Ping Chen
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Mingqiang Chen
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Wenjie Luo
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Junjie Huang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Wenxiang Ding
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Haochen Wang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Yong Pu
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Li Zheng
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Yuanyuan Jiao
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Mingwang Zhang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Ziting Tang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Qingsong Yue
- Huadian Tibet Hydropower Development Co.,Ltd, Dagu Hydropower Station, Sangri, 856200, Shannan, China
| | - Deying Yang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China.
| | - Taiming Yan
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China.
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11
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Carling GK, Fan L, Foxe NR, Norman K, Ye P, Wong MY, Zhu D, Yu F, Xu J, Yarahmady A, Chen H, Huang Y, Amin S, Zacharioudakis E, Chen X, Holtzman DM, Mok SA, Gavathiotis E, Sinha SC, Cheng F, Luo W, Gong S, Gan L. Alzheimer's disease-linked risk alleles elevate microglial cGAS-associated senescence and neurodegeneration in a tauopathy model. bioRxiv 2024:2024.01.24.577107. [PMID: 38328219 PMCID: PMC10849737 DOI: 10.1101/2024.01.24.577107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
The strongest risk factors for Alzheimer's disease (AD) include the χ4 allele of apolipoprotein E (APOE), the R47H variant of triggering receptor expressed on myeloid cells 2 (TREM2), and female sex. Here, we combine APOE4 and TREM2R47H ( R47H ) in female P301S tauopathy mice to identify the pathways activated when AD risk is the strongest, thereby highlighting disease-causing mechanisms. We find that the R47H variant induces neurodegeneration in female APOE4 mice without impacting hippocampal tau load. The combination of APOE4 and R47H amplified tauopathy-induced cell-autonomous microglial cGAS-STING signaling and type-I interferon response, and interferon signaling converged across glial cell types in the hippocampus. APOE4-R47H microglia displayed cGAS- and BAX-dependent upregulation of senescence, showing association between neurotoxic signatures and implicating mitochondrial permeabilization in pathogenesis. By uncovering pathways enhanced by the strongest AD risk factors, our study points to cGAS-STING signaling and associated microglial senescence as potential drivers of AD risk.
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12
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Gong L, Chen K, Zhang H, Zhang S, Luo W, Zhou W, Zhang B, Xu R, Xi C. Higher Cognitive Reserve Is Beneficial for Cognitive Performance Via Various Locus Coeruleus Functional Pathways in the Pre-Dementia Stage of Alzheimer's Disease. J Prev Alzheimers Dis 2024; 11:484-494. [PMID: 38374755 DOI: 10.14283/jpad.2023.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
BACKGROUND Cognitive reserve (CR) shows protective effects on cognitive function in older adult and in Alzheimer's disease (AD). However, the brain mechanisms underlying the CR effect on the non-dementia AD spectrum (subjective cognitive decline (SCD) and mild cognitive impairment (MCI)) are unknown. The aim of this study was to investigate the potential moderate effect of CR on brain functional networks associated with cognitive performance. METHODS We selected 200 participants, including 48 cognitively normal (CN) and 56 SCD, and 96 patients with MCI from the Alzheimer's Disease Neuroimaging Initiative (ADNI). Seed-based locus coeruleus functional connectivity (LC FC) was conducted to detect early brain functional changes in the non-dementia AD spectrum. CR was assessed via years of education and intelligence (IQ). The ANDI composite executive function scores (ADNI-EF) and ADNI composite memory scores (ANDI-MEM) at baseline and 24-month follow-up were used to assess cognitive performance. RESULTS Compared to the CN group, the SCD group showed abnormal LC FC with the executive control network (dorsolateral prefrontal cortex, DLPFC), salience network, sensorimotor network, reward network, and hippocampus, while these alterations were inverted at the MCI stage. The LC-hippocampus FC was correlated with ADNI-MEM at baseline and follow-up, and these relationships were moderated by education. The LC-DLPFC FC was correlated with ADNI-EF at baseline, and this association was moderated by IQ. CONCLUSION Our results manifested that higher levels of CR would confer protective effects on SCD and MCI. Furthermore, IQ and education could moderate the relationship between LC FC and cognition through different pathways.
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Affiliation(s)
- L Gong
- Liang Gong and Chunhua XI: Gong, Department of Neurology, Chengdu Second People's Hospital, Qingyunnan Road 10, Chengdu, Sichuan 610017, China; ; Tel: +86 17360251891; Fax: +86 28 67830800; Xi, Department of Neurology, The Third Affiliated Hospital of Anhui Medical University, Huaihe Road 390, Heifei, Anhui 230061, China,
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13
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Luo W, Mohammed J. Mental health status and coping strategies of Chinese university students during the COVID-19 pandemic: A rapid review. PLoS One 2023; 18:e0296309. [PMID: 38134210 PMCID: PMC10745188 DOI: 10.1371/journal.pone.0296309] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 12/09/2023] [Indexed: 12/24/2023] Open
Abstract
Since the coronavirus (COVID-19) outbreak in December 2019, students have been under unparalleled psychological stress worldwide. As part of its prevention and control strategies, the Chinese Ministry of Education proposed online teaching activities for universities. For the first time, teaching and learning shifted completely online, significantly impacting university students used to classroom learning. This research addresses the knowledge gap about the mental health and coping strategies employed by Chinese university students during the COVID-19 pandemic. Electronic databases (PsycINFO, Scopus, Medline, Cochranes and CNKI) were searched systematically from 2019 to 2023, as part of this literature review. From the 349 articles found, 25 met the inclusion criteria for analysis. Thematic analysis was used to identify six sub-themes, organized under two main themes: Mental health issues of Chinese university students and their coping mechanisms. Heightened stress, anxiety, and depression appeared in Chinese university students during the pandemic, which may have been compounded by their isolation and the disruptions to their studies. Although the impact of COVID-19 on Chinese university students is waning, this study emphasizes the potential long-lasting impact on their mental health, which requires further investigation, particularly regarding gender differences. Moreover, positive and negative coping strategies were found in this review. Strategies for seeking social and family support and participating in sports activities had significant alleviating effects, while negative coping strategies such as alcohol-use and smoking did not. This rapid review informs the development of policies and interventions to enhance the mental health of university students during crisis events. The findings serve to inform health policymakers, university psychologists, and educators in improving the well-being of this student population.
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Affiliation(s)
- Wenjie Luo
- Department of Pharmacy, Xiangyang No.1 People’s Hospital, Hubei University of Medicine, Shiyan, China
- Faculty of Health and Environmental Sciences, Auckland University of Technology, Auckland, New Zealand
| | - Jalal Mohammed
- Faculty of Health, University of Canterbury, Christchurch, New Zealand
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14
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Wu S, Jiang Y, Luo W, Xu P, Huang L, Du Y, Wang H, Zhou X, Ge Y, Qian J, Nie H, Yang Z. Ag-Co 3 O 4 -CoOOH-Nanowires Tandem Catalyst for Efficient Electrocatalytic Conversion of Nitrate to Ammonia at Low Overpotential via Triple Reactions. Adv Sci (Weinh) 2023; 10:e2303789. [PMID: 37822155 PMCID: PMC10667848 DOI: 10.1002/advs.202303789] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 08/23/2023] [Indexed: 10/13/2023]
Abstract
The electrocatalytic conversion of nitrate (NO3 ‾) to NH3 (NO3 RR) offers a promising alternative to the Haber-Bosch process. However, the overall kinetic rate of NO3 RR is plagued by the complex proton-assisted multiple-electron transfer process. Herein, Ag/Co3 O4 /CoOOH nanowires (i-Ag/Co3 O4 NWs) tandem catalyst is designed to optimize the kinetic rate of intermediate reaction for NO3 RR simultaneously. The authors proved that NO3 ‾ ions are reduced to NO2 ‾ preferentially on Ag phases and then NO2 ‾ to NO on Co3 O4 phases. The CoOOH phases catalyze NO reduction to NH3 via NH2 OH intermediate. This unique catalyst efficiently converts NO3 ‾ to NH3 through a triple reaction with a high Faradaic efficiency (FE) of 94.3% and a high NH3 yield rate of 253.7 μmol h-1 cm-2 in 1 M KOH and 0.1 M KNO3 solution at -0.25 V versus RHE. The kinetic studies demonstrate that converting NH2 OH into NH3 is the rate-determining step (RDS) with an energy barrier of 0.151 eV over i-Ag/Co3 O4 NWs. Further applying i-Ag/Co3 O4 NWs as the cathode material, a novel Zn-nitrate battery exhibits a power density of 2.56 mW cm-2 and an FE of 91.4% for NH3 production.
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Affiliation(s)
- Shilu Wu
- Key Laboratory of Carbon Materials of ZhejiangCollege of Chemistry and Materials EngineeringWenzhou UniversityWenzhou325035P. R. China
| | - Yingyang Jiang
- Key Laboratory of Carbon Materials of ZhejiangCollege of Chemistry and Materials EngineeringWenzhou UniversityWenzhou325035P. R. China
| | - Wenjie Luo
- Key Laboratory of Carbon Materials of ZhejiangCollege of Chemistry and Materials EngineeringWenzhou UniversityWenzhou325035P. R. China
| | - Peng Xu
- Key Laboratory of Carbon Materials of ZhejiangCollege of Chemistry and Materials EngineeringWenzhou UniversityWenzhou325035P. R. China
| | - Longlong Huang
- Key Laboratory of Carbon Materials of ZhejiangCollege of Chemistry and Materials EngineeringWenzhou UniversityWenzhou325035P. R. China
| | - Yiwen Du
- Key Laboratory of Carbon Materials of ZhejiangCollege of Chemistry and Materials EngineeringWenzhou UniversityWenzhou325035P. R. China
| | - Hui Wang
- Key Laboratory of Carbon Materials of ZhejiangCollege of Chemistry and Materials EngineeringWenzhou UniversityWenzhou325035P. R. China
| | - Xuemei Zhou
- Key Laboratory of Carbon Materials of ZhejiangCollege of Chemistry and Materials EngineeringWenzhou UniversityWenzhou325035P. R. China
| | - Yongjie Ge
- Key Laboratory of Carbon Materials of ZhejiangCollege of Chemistry and Materials EngineeringWenzhou UniversityWenzhou325035P. R. China
| | - Jinjie Qian
- Key Laboratory of Carbon Materials of ZhejiangCollege of Chemistry and Materials EngineeringWenzhou UniversityWenzhou325035P. R. China
| | - Huagui Nie
- Key Laboratory of Carbon Materials of ZhejiangCollege of Chemistry and Materials EngineeringWenzhou UniversityWenzhou325035P. R. China
| | - Zhi Yang
- Key Laboratory of Carbon Materials of ZhejiangCollege of Chemistry and Materials EngineeringWenzhou UniversityWenzhou325035P. R. China
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15
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Chen H, Fan L, Guo Q, Wong MY, Yu F, Foxe N, Wang W, Nessim A, Carling G, Liu B, Lopez-Lee C, Huang Y, Amin S, Patel T, Mok SA, Song WM, Zhang B, Ma Q, Fu H, Gan L, Luo W. DAP12 deficiency alters microglia-oligodendrocyte communication and enhances resilience against tau toxicity. bioRxiv 2023:2023.10.26.563970. [PMID: 37961594 PMCID: PMC10634844 DOI: 10.1101/2023.10.26.563970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Pathogenic tau accumulation fuels neurodegeneration in Alzheimer's disease (AD). Enhancing aging brain's resilience to tau pathology would lead to novel therapeutic strategies. DAP12 (DNAX-activation protein 12) is critically involved in microglial immune responses. Previous studies have showed that mice lacking DAP12 in tauopathy mice exhibit higher tau pathology but are protected from tau-induced cognitive deficits. However, the exact mechanism remains elusive. Our current study uncovers a novel resilience mechanism via microglial interaction with oligodendrocytes. Despite higher tau inclusions, Dap12 deletion curbs tau-induced brain inflammation and ameliorates myelin and synapse loss. Specifically, removal of Dap12 abolished tau-induced disease-associated clusters in microglia (MG) and intermediate oligodendrocytes (iOli), which are spatially correlated with tau pathology in AD brains. Our study highlights the critical role of interactions between microglia and oligodendrocytes in tau toxicity and DAP12 signaling as a promising target for enhancing resilience in AD.
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Affiliation(s)
- Hao Chen
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Li Fan
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Qi Guo
- Department of Biomedical Informatics, College of Medicine, Ohio State University, Columbus, OH 43210 USA
| | - Man Ying Wong
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Fangmin Yu
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Nessa Foxe
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | | | - Aviram Nessim
- The State University of New York at Stony Brook, Long Island, New York, USA
| | - Gillian Carling
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
- Program of Neuroscience, Weill Graduate School of Medical Sciences of Cornell University, New York, NY, USA
| | - Bangyan Liu
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
- Program of Neuroscience, Weill Graduate School of Medical Sciences of Cornell University, New York, NY, USA
| | - Chloe Lopez-Lee
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
- Program of Neuroscience, Weill Graduate School of Medical Sciences of Cornell University, New York, NY, USA
| | - Yige Huang
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
- Program of Neuroscience, Weill Graduate School of Medical Sciences of Cornell University, New York, NY, USA
| | - Sadaf Amin
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Tark Patel
- Department of Biochemistry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB Canada
| | - Sue-Ann Mok
- Department of Biochemistry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB Canada
| | - Won-min Song
- Department of Genetics and Genomic Sciences, Mount Sinai Center for Transformative Disease Modeling, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Bin Zhang
- Department of Genetics and Genomic Sciences, Mount Sinai Center for Transformative Disease Modeling, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Qin Ma
- Department of Biomedical Informatics, College of Medicine, Ohio State University, Columbus, OH 43210 USA
| | - Hongjun Fu
- Department of Neuroscience, College of Medicine, Ohio State University, Columbus, OH 43210 USA
| | - Li Gan
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
- Millburn High School, New Jersey, NJ, USA
| | - Wenjie Luo
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
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16
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Chen H, Fan L, Guo Q, Wong MY, Yu F, Foxe N, Wang W, Nessim A, Carling G, Liu B, Lopez-Lee C, Huang Y, Amin S, Mok SA, Song WM, Zhang B, Ma Q, Fu H, Gan L, Luo W. DAP12 deficiency alters microglia-oligodendrocyte communication and enhances resilience against tau toxicity. Res Sq 2023:rs.3.rs-3454358. [PMID: 37961627 PMCID: PMC10635319 DOI: 10.21203/rs.3.rs-3454358/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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Pathogenic tau accumulation fuels neurodegeneration in Alzheimer's disease (AD). Enhancing aging brain's resilience to tau pathology would lead to novel therapeutic strategies. DAP12 (DNAX-activation protein 12) is critically involved in microglial immune responses. Previous studies have showed that mice lacking DAP12 in tauopathy mice exhibit higher tau pathology but are protected from tau-induced cognitive deficits. However, the exact mechanism remains elusive. Our current study uncovers a novel resilience mechanism via microglial interaction with oligodendrocytes. Despite higher tau inclusions, Dap12 deletion curbs tau-induced brain inflammation and ameliorates myelin and synapse loss. Specifically, removal of Dap12 abolished tau-induced disease-associated clusters in microglia (MG) and intermediate oligodendrocytes (iOli), which are spatially correlated with tau pathology in AD brains. Our study highlights the critical role of interactions between microglia and oligodendrocytes in tau toxicity and DAP12 signaling as a promising target for enhancing resilience in AD.
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Affiliation(s)
- Hao Chen
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Li Fan
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Qi Guo
- Department of Biomedical Informatics, College of Medicine, Ohio State University, Columbus, OH 43210 USA
| | - Man Ying Wong
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Fangmin Yu
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Nessa Foxe
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | | | - Aviram Nessim
- The State University of New York at Stony Brook, Long Island, New York, USA
| | - Gillian Carling
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
- Program of Neuroscience, Weill Graduate School of Medical Sciences of Cornell University, New York, NY, USA
| | - Bangyan Liu
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
- Program of Neuroscience, Weill Graduate School of Medical Sciences of Cornell University, New York, NY, USA
| | - Chloe Lopez-Lee
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
- Program of Neuroscience, Weill Graduate School of Medical Sciences of Cornell University, New York, NY, USA
| | - Yige Huang
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
- Program of Neuroscience, Weill Graduate School of Medical Sciences of Cornell University, New York, NY, USA
| | - Sadaf Amin
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Sue-Ann Mok
- Department of Biochemistry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB Canada
| | - Won-min Song
- Department of Genetics and Genomic Sciences, Mount Sinai Center for Transformative Disease Modeling, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Bin Zhang
- Department of Genetics and Genomic Sciences, Mount Sinai Center for Transformative Disease Modeling, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Qin Ma
- Department of Biomedical Informatics, College of Medicine, Ohio State University, Columbus, OH 43210 USA
| | - Hongjun Fu
- Department of Neuroscience, College of Medicine, Ohio State University, Columbus, OH 43210 USA
| | - Li Gan
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
- Millburn High School, New Jersey, NJ, USA
| | - Wenjie Luo
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
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Uekawa K, Hattori Y, Ahn SJ, Seo J, Casey N, Anfray A, Zhou P, Luo W, Anrather J, Park L, Iadecola C. Border-associated macrophages promote cerebral amyloid angiopathy and cognitive impairment through vascular oxidative stress. Mol Neurodegener 2023; 18:73. [PMID: 37789345 PMCID: PMC10548599 DOI: 10.1186/s13024-023-00660-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [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: 03/27/2023] [Accepted: 09/20/2023] [Indexed: 10/05/2023] Open
Abstract
BACKGROUND Cerebral amyloid angiopathy (CAA) is a devastating condition common in patients with Alzheimer's disease but also observed in the general population. Vascular oxidative stress and neurovascular dysfunction have been implicated in CAA but the cellular source of reactive oxygen species (ROS) and related signaling mechanisms remain unclear. We tested the hypothesis that brain border-associated macrophages (BAM), yolk sac-derived myeloid cells closely apposed to parenchymal and leptomeningeal blood vessels, are the source of radicals through the Aβ-binding innate immunity receptor CD36, leading to neurovascular dysfunction, CAA, and cognitive impairment. METHODS Tg2576 mice and WT littermates were transplanted with CD36-/- or CD36+/+ bone marrow at 12-month of age and tested at 15 months. This approach enables the repopulation of perivascular and leptomeningeal compartments with CD36-/- BAM. Neurovascular function was tested in anesthetized mice equipped with a cranial window in which cerebral blood flow was monitored by laser-Doppler flowmetry. Amyloid pathology and cognitive function were also examined. RESULTS The increase in blood flow evoked by whisker stimulation (functional hyperemia) or by endothelial and smooth muscle vasoactivity was markedly attenuated in WT → Tg2576 chimeras but was fully restored in CD36-/- → Tg2576 chimeras, in which BAM ROS production was suppressed. CAA-associated Aβ1-40, but not Aβ1-42, was reduced in CD36-/- → Tg2576 chimeras. Similarly, CAA, but not parenchymal plaques, was reduced in CD36-/- → Tg2576 chimeras. These beneficial vascular effects were associated with cognitive improvement. Finally, CD36-/- mice were able to more efficiently clear exogenous Aβ1-40 injected into the neocortex or the striatum. CONCLUSIONS CD36 deletion in BAM suppresses ROS production and rescues the neurovascular dysfunction and damage induced by Aβ. CD36 deletion in BAM also reduced brain Aβ1-40 and ameliorated CAA without affecting parenchyma plaques. Lack of CD36 enhanced the vascular clearance of exogenous Aβ. Restoration of neurovascular function and attenuation of CAA resulted in a near complete rescue of cognitive function. Collectively, these data implicate brain BAM in the pathogenesis of CAA and raise the possibility that targeting BAM CD36 is beneficial in CAA and other conditions associated with vascular Aβ deposition and damage.
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Affiliation(s)
- Ken Uekawa
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Yorito Hattori
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Sung Ji Ahn
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, 10021, USA
| | - James Seo
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Nicole Casey
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Antoine Anfray
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Ping Zhou
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Wenjie Luo
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Josef Anrather
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Laibaik Park
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, 10021, USA.
| | - Costantino Iadecola
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, 10021, USA.
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18
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Yang X, Wen J, Yang H, Jones IR, Zhu X, Liu W, Li B, Clelland CD, Luo W, Wong MY, Ren X, Cui X, Song M, Liu H, Chen C, Eng N, Ravichandran M, Sun Y, Lee D, Van Buren E, Jiang MZ, Chan CSY, Ye CJ, Perera RM, Gan L, Li Y, Shen Y. Functional characterization of Alzheimer's disease genetic variants in microglia. Nat Genet 2023; 55:1735-1744. [PMID: 37735198 PMCID: PMC10939305 DOI: 10.1038/s41588-023-01506-8] [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] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 08/20/2023] [Indexed: 09/23/2023]
Abstract
Candidate cis-regulatory elements (cCREs) in microglia demonstrate the most substantial enrichment for Alzheimer's disease (AD) heritability compared to other brain cell types. However, whether and how these genome-wide association studies (GWAS) variants contribute to AD remain elusive. Here we prioritize 308 previously unreported AD risk variants at 181 cCREs by integrating genetic information with microglia-specific 3D epigenome annotation. We further establish the link between functional variants and target genes by single-cell CRISPRi screening in microglia. In addition, we show that AD variants exhibit allelic imbalance on target gene expression. In particular, rs7922621 is the effective variant in controlling TSPAN14 expression among other nominated variants in the same cCRE and exerts multiple physiological effects including reduced cell surface ADAM10 and altered soluble TREM2 (sTREM2) shedding. Our work represents a systematic approach to prioritize and characterize AD-associated variants and provides a roadmap for advancing genetic association to experimentally validated cell-type-specific phenotypes and mechanisms.
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Affiliation(s)
- Xiaoyu Yang
- Institute for Human Genetics, University of California, San Francisco, San Francisco, CA, USA
| | - Jia Wen
- Department of Genetics, University of North Carolina, Chapel Hill, NC, USA
| | - Han Yang
- Institute for Human Genetics, University of California, San Francisco, San Francisco, CA, USA
| | - Ian R Jones
- Institute for Human Genetics, University of California, San Francisco, San Francisco, CA, USA
- Pharmaceutical Sciences and Pharmacogenomics Graduate Program, University of California, San Francisco, San Francisco, CA, USA
| | - Xiaodong Zhu
- Helen and Robert Appel Alzheimer's Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York City, NY, USA
| | - Weifang Liu
- Department of Genetics, University of North Carolina, Chapel Hill, NC, USA
- Department of Biostatistics, University of North Carolina, Chapel Hill, NC, USA
| | - Bingkun Li
- Institute for Human Genetics, University of California, San Francisco, San Francisco, CA, USA
| | - Claire D Clelland
- Department of Neurology, University of California, San Francisco, San Francisco, CA, USA
- Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, USA
| | - Wenjie Luo
- Helen and Robert Appel Alzheimer's Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York City, NY, USA
| | - Man Ying Wong
- Helen and Robert Appel Alzheimer's Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York City, NY, USA
| | - Xingjie Ren
- Institute for Human Genetics, University of California, San Francisco, San Francisco, CA, USA
| | - Xiekui Cui
- Institute for Human Genetics, University of California, San Francisco, San Francisco, CA, USA
| | - Michael Song
- Institute for Human Genetics, University of California, San Francisco, San Francisco, CA, USA
- Pharmaceutical Sciences and Pharmacogenomics Graduate Program, University of California, San Francisco, San Francisco, CA, USA
| | - Hongjiang Liu
- Institute for Human Genetics, University of California, San Francisco, San Francisco, CA, USA
| | - Cady Chen
- Institute for Human Genetics, University of California, San Francisco, San Francisco, CA, USA
| | - Nicolas Eng
- Institute for Human Genetics, University of California, San Francisco, San Francisco, CA, USA
| | | | - Yang Sun
- Institute for Human Genetics, University of California, San Francisco, San Francisco, CA, USA
- Division of Rheumatology, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - David Lee
- Institute for Human Genetics, University of California, San Francisco, San Francisco, CA, USA
- Division of Rheumatology, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Eric Van Buren
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Min-Zhi Jiang
- Department of Genetics, University of North Carolina, Chapel Hill, NC, USA
| | - Candace S Y Chan
- Tetrad Graduate Program, University of California, San Francisco, San Francisco, CA, USA
| | - Chun Jimmie Ye
- Institute for Human Genetics, University of California, San Francisco, San Francisco, CA, USA
- Division of Rheumatology, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
- Rosalind Russell/Ephraim P. Engleman Rheumatology Research Center, University of California, San Francisco, San Francisco, CA, USA
- Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA, USA
- Parker Institute for Cancer Immunotherapy, San Francisco, CA, USA
- Chan Zuckerberg Biohub, San Francisco, CA, USA
- Bakar Computational Health Sciences Institute, University of California, San Francisco, San Francisco, CA, USA
| | - Rushika M Perera
- Department of Anatomy, University of California, San Francisco, San Francisco, CA, USA
- Department of Pathology, University of California, San Francisco, San Francisco, CA, USA
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, USA
| | - Li Gan
- Helen and Robert Appel Alzheimer's Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York City, NY, USA
| | - Yun Li
- Department of Genetics, University of North Carolina, Chapel Hill, NC, USA.
- Department of Biostatistics, University of North Carolina, Chapel Hill, NC, USA.
- Department of Computer Science, University of North Carolina, Chapel Hill, NC, USA.
| | - Yin Shen
- Institute for Human Genetics, University of California, San Francisco, San Francisco, CA, USA.
- Department of Neurology, University of California, San Francisco, San Francisco, CA, USA.
- Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, USA.
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Luo W, Qu W, Gan L. The AD odyssey 2023: Tales of single cell. Cell 2023; 186:4257-4259. [PMID: 37774675 DOI: 10.1016/j.cell.2023.09.001] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 09/01/2023] [Accepted: 09/01/2023] [Indexed: 10/01/2023]
Abstract
Deciphering cellular changes in Alzheimer's disease (AD) using large cohorts with defined clinical stages is essential for understanding the diverse trajectories of AD progression. In this issue of Cell, five studies harnessed the power of single-nuclei RNA sequencing (snRNA-seq) and single-nuclei ATAC sequencing (snATAC-seq) at unprecedented scale and revealed exciting insights into cell-type-specific mechanisms underlying the progression of AD pathogenesis.
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Affiliation(s)
- Wenjie Luo
- Helen and Robert Appel Alzheimer's Disease Research Institute, Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Wenhui Qu
- Helen and Robert Appel Alzheimer's Disease Research Institute, Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Li Gan
- Helen and Robert Appel Alzheimer's Disease Research Institute, Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA.
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20
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Lopez-Lee C, Kodama L, Fan L, Wong MY, Foxe NR, Jiaz L, Yu F, Ye P, Zhu J, Norman K, Torres ER, Kim RD, Mousa GA, Dubal D, Liddelow S, Luo W, Gan L. Sex Chromosomes and Gonads Shape the Sex-Biased Transcriptomic Landscape in Tlr7-Mediated Demyelination During Aging. bioRxiv 2023:2023.09.19.558439. [PMID: 37781600 PMCID: PMC10541118 DOI: 10.1101/2023.09.19.558439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
Demyelination occurs in aging and associated diseases, including Alzheimer's disease. Several of these diseases exhibit sex differences in prevalence and severity. Biological sex primarily stems from sex chromosomes and gonads releasing sex hormones. To dissect mechanisms underlying sex differences in demyelination of aging brains, we constructed a transcriptomic atlas of cell type-specific responses to illustrate how sex chromosomes, gonads, and their interaction shape responses to demyelination. We found that sex-biased oligodendrocyte and microglial responses are driven by interaction of sex chromosomes and gonads prior to myelin loss. Post demyelination, sex chromosomes mainly guide microglial responses, while gonadal composition influences oligodendrocyte signaling. Significantly, ablation of the X-linked gene Toll-like receptor 7 (Tlr7), which exhibited sex-biased expression during demyelination, abolished the sex-biased responses and protected against demyelination.
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Affiliation(s)
- Chloe Lopez-Lee
- Helen and Robert Appel Institute for Alzheimer’s Disease Research, Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY
- Neuroscience Graduate Program, Weill Cornell Medicine, New York, NY
| | - Lay Kodama
- Helen and Robert Appel Institute for Alzheimer’s Disease Research, Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY
- Neuroscience Graduate Program, University of California San Francisco, San Francisco, CA
| | - Li Fan
- Helen and Robert Appel Institute for Alzheimer’s Disease Research, Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY
| | - Man Ying Wong
- Helen and Robert Appel Institute for Alzheimer’s Disease Research, Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY
| | - Nessa R. Foxe
- Helen and Robert Appel Institute for Alzheimer’s Disease Research, Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY
| | - Laraib Jiaz
- Helen and Robert Appel Institute for Alzheimer’s Disease Research, Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY
| | - Fangmin Yu
- Helen and Robert Appel Institute for Alzheimer’s Disease Research, Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY
| | - Pearly Ye
- Helen and Robert Appel Institute for Alzheimer’s Disease Research, Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY
| | - Jingjie Zhu
- Helen and Robert Appel Institute for Alzheimer’s Disease Research, Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY
| | - Kendra Norman
- Helen and Robert Appel Institute for Alzheimer’s Disease Research, Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY
| | - Eileen Ruth Torres
- Helen and Robert Appel Institute for Alzheimer’s Disease Research, Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY
| | - Rachel D. Kim
- Neuroscience Institute, NYU Grossman School of Medicine, New York, NY
| | - Gergey Alzaem Mousa
- Helen and Robert Appel Institute for Alzheimer’s Disease Research, Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY
| | - Dena Dubal
- Department of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA
| | - Shane Liddelow
- Neuroscience Institute, NYU Grossman School of Medicine, New York, NY
- Department of Neuroscience & Physiology, NYU Grossman School of Medicine, New York, NY
- Department of Ophthalmology, NYU Grossman School of Medicine, New York, NY
- Parekh Center for Interdisciplinary Neurology, NYU Grossman School of Medicine, New York, NY
| | - Wenjie Luo
- Helen and Robert Appel Institute for Alzheimer’s Disease Research, Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY
| | - Li Gan
- Helen and Robert Appel Institute for Alzheimer’s Disease Research, Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY
- Neuroscience Graduate Program, Weill Cornell Medicine, New York, NY
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21
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Chen Y, Dong K, Fang C, Shi H, Luo W, Tang CE, Luo F. The predictive values of monocyte-lymphocyte ratio in postoperative acute kidney injury and prognosis of patients with Stanford type A aortic dissection. Front Immunol 2023; 14:1195421. [PMID: 37554321 PMCID: PMC10404983 DOI: 10.3389/fimmu.2023.1195421] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 07/03/2023] [Indexed: 08/10/2023] Open
Abstract
Objectives Postoperative acute kidney injury (pAKI) is a serious complication of Stanford type A aortic dissection (TAAD) surgery, which is significantly associated with the inflammatory response. This study aimed to explore the relationship between blood count-derived inflammatory markers (BCDIMs) and pAKI and to construct a predictive model for pAKI. Methods Patients who underwent TAAD surgery were obtained from our center and the Medical Information Mart for Intensive Care (MIMIC)-IV database. The differences in preoperative BCDIMs and clinical outcomes of patients with and without pAKI were analyzed. Logistic regression was used to construct predictive models based on preoperative BCDIMs or white cell counts (WCCs). The performance of the BCDIMs and WCCs models was evaluated and compared using the receiver operating characteristic (ROC) curve, area under the ROC curve (AUC), Hosmer-Lemeshow test, calibration plot, net reclassification index (NRI), integrated discrimination improvement index (IDI), and decision curve analysis (DCA). The Kaplan-Meier curves were applied to compare the survival rate between different groups. Results The overall incidence of pAKI in patients who underwent TAAD surgery from our center was 48.63% (124/255). The presence of pAKI was associated with longer ventilation time, higher incidence of cerebral complications and postoperative hepatic dysfunction, and higher in-hospital mortality. The results of the logistic regression indicated that the monocyte-lymphocyte ratio (MLR) was an independent risk factor for pAKI. The BCDIMs model had good discriminating ability, predictive ability, and clinical utility. In addition, the performance of the BCDIMs model was significantly better than that of the WCCs model. Analysis of data from the MIMIC-IV database validated that MLR was an independent risk factor for pAKI and had predictive value for pAKI. Finally, data from the MIMIC-IV database demonstrated that patients with a high MLR had a significantly poor 28-day survival rate when compared to patients with a low MLR. Conclusion Our study suggested that the MLR is an independent risk factor for pAKI. A predictive model based on BCDIMs had good discriminating ability, predictive ability, and clinical utility. Moreover, the performance of the BCDIMs model was significantly better than that of the WCCs model. Finally, a high MLR was significantly associated with poor short-term survival of patients who underwent TAAD surgery.
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Affiliation(s)
- Yubin Chen
- Department of Cardiac Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Kaiyi Dong
- Department of Cardiac Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Cheng Fang
- Department of Cardiac Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hui Shi
- Department of Cardiac Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Wenjie Luo
- Department of Cardiac Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Can-e Tang
- Department of Endocrinology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- The Institute of Medical Science Research, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Fanyan Luo
- Department of Cardiac Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
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22
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Hou SS, Wu YL, Luo W, Yin X, Sun ZX, Zhao Q, Zhao GM, Jiang YG, Wang N, Jiang QW. [Association between sedentary behavior and force expiratory volume in 1 second reduction in middle-aged and elderly adults in communities]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:1092-1098. [PMID: 37482712 DOI: 10.3760/cma.j.cn112338-20221111-00963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
Objective: To analyze the relationship between sedentary behavior and the force expiratory volume in 1 second (FEV1) reduction in middle-aged and elderly people in communities. Methods: The participants aged ≥40 years were randomly selected from a natural population cohort in Songjiang District, Shanghai, for pulmonary function tests and survey by using international physical activity questionnaire, a generalized additive model was used to analyze the association between sedentary behavior and FEV1 reduction in the study population and different sex-age subgroups. Results: A total of 3 121 study subjects aged ≥40 years were included. The prevalence of FEV1 reduction was 14.8%, which was higher in men than in women. There were 24.8% participants were completely sedentary. The prevalence of FEV1 reduction in women aged <60 years in complete sedentary group was 2.04 (95%CI: 1.11-3.72) times higher than that in non-complete sedentary group. In men aged <60 years, the prevalence of FEV1 reduction increased with daily sedentary time (OR=1.16, 95%CI: 1.04-1.29), and the prevalence of FEV1 reduction was also higher in those with sedentary time >5 hours/day than those with sedentary time ≤5 hours/day (OR=3.02, 95%CI: 1.28-7.16). The sensitivity analysis also found such associations. Conclusions: FEV1 reduction rate in age group <60 years was associated with sedentary behavior. Complete sedentary behavior or absence of moderate to vigorous physical activity played important roles in FEV1 reduction in women, while men were more likely to be affected by increased sedentary time, which had no association with physical activity. Reducing sedentary time to avoid complete sedentary behavior, along with increased physical activity, should be encouraged in middle-aged and elderly adults in communities to improve their pulmonary function.
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Affiliation(s)
- S S Hou
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China
| | - Y L Wu
- Songjiang District Center for Disease Control and Prevention, Shanghai 201620, China
| | - W Luo
- Songjiang District Center for Disease Control and Prevention, Shanghai 201620, China
| | - X Yin
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China
| | - Z X Sun
- Songjiang District Center for Disease Control and Prevention, Shanghai 201620, China
| | - Q Zhao
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China
| | - G M Zhao
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China
| | - Y G Jiang
- Songjiang District Center for Disease Control and Prevention, Shanghai 201620, China
| | - N Wang
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China
| | - Q W Jiang
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China
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23
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Bravo CP, Giani AM, Perez JM, Zhao Z, Samelson A, Wong MY, Evangelisti A, Fan L, Pozner T, Mercedes M, Ye P, Patel T, Yarahmady A, Carling G, Lee VMY, Sharma M, Mok SA, Luo W, Zhao M, Kampmann M, Gong S, Gan L. Human iPSC 4R tauopathy model uncovers modifiers of tau propagation. bioRxiv 2023:2023.06.19.544278. [PMID: 37745431 PMCID: PMC10516028 DOI: 10.1101/2023.06.19.544278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Tauopathies are age-associated neurodegenerative diseases whose mechanistic underpinnings remain elusive, partially due to lack of appropriate human models. Current human induced pluripotent stem cell (hiPSC)-derived neurons express very low levels of 4-repeat (4R)-tau isoforms that are normally expressed in adult brain. Here, we engineered new iPSC lines to express 4R-tau and 4R-tau carrying the P301S MAPT mutation when differentiated into neurons. 4R-P301S neurons display progressive Tau inclusions upon seeding with Tau fibrils and recapitulate features of tauopathy phenotypes, including shared transcriptomic signatures, autophagic body accumulation, and impaired neuronal activity. A CRISPRi screen of genes associated with Tau pathobiology identified over 500 genetic modifiers of Tau-seeding-induced Tau propagation, including retromer VPS29 and the UFMylation cascade as top modifiers. In AD brains, the UFMylation cascade is altered in neurofibrillary-tangle-bearing neurons. Inhibiting the UFMylation cascade suppressed seeding-induced Tau propagation. This model provides a powerful platform to identify novel therapeutic strategies for 4R tauopathy.
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24
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Luo W, Xie X, Deng K, Yang L, Lai J. Learning Shadow Removal from Unpaired Samples via Reciprocal Learning. IEEE Trans Image Process 2023; PP:1-1. [PMID: 37327095 DOI: 10.1109/tip.2023.3285439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
We focus on addressing the problem of shadow removal for an image, and attempt to make a weakly supervised learning model that does not depend on the pixelwise-paired training samples, but only uses the samples with image-level labels that indicate whether an image contains shadow or not. To this end, we propose a deep reciprocal learning model that interactively optimizes the shadow remover and the shadow detector to improve the overall capability of the model. On the one hand, shadow removal is modeled as an optimization problem with a latent variable of the detected shadow mask. On the other hand, a shadow detector can be trained using the prior from the shadow remover. A self-paced learning strategy is employed to avoid fitting to intermediate noisy annotation during the interactive optimization. Furthermore, a color-maintenance loss and a shadow-attention discriminator are both designed to facilitate model optimization. Extensive experiments on the pairwise ISTD dataset, SRD dataset, and unpaired USR dataset demonstrate the superiority of the proposed deep reciprocal model.
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25
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Yang J, Bergdorf K, Yan C, Luo W, Chen SC, Ayers GD, Liu Q, Liu X, Boothby M, Weiss VL, Groves SM, Oleskie AN, Zhang X, Maeda DY, Zebala JA, Quaranta V, Richmond A. CXCR2 expression during melanoma tumorigenesis controls transcriptional programs that facilitate tumor growth. Mol Cancer 2023; 22:92. [PMID: 37270599 PMCID: PMC10239119 DOI: 10.1186/s12943-023-01789-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 03/03/2023] [Accepted: 05/16/2023] [Indexed: 06/05/2023] Open
Abstract
BACKGROUND Though the CXCR2 chemokine receptor is known to play a key role in cancer growth and response to therapy, a direct link between expression of CXCR2 in tumor progenitor cells during induction of tumorigenesis has not been established. METHODS To characterize the role of CXCR2 during melanoma tumorigenesis, we generated tamoxifen-inducible tyrosinase-promoter driven BrafV600E/Pten-/-/Cxcr2-/- and NRasQ61R/INK4a-/-/Cxcr2-/- melanoma models. In addition, the effects of a CXCR1/CXCR2 antagonist, SX-682, on melanoma tumorigenesis were evaluated in BrafV600E/Pten-/- and NRasQ61R/INK4a-/- mice and in melanoma cell lines. Potential mechanisms by which Cxcr2 affects melanoma tumorigenesis in these murine models were explored using RNAseq, mMCP-counter, ChIPseq, and qRT-PCR; flow cytometry, and reverse phosphoprotein analysis (RPPA). RESULTS Genetic loss of Cxcr2 or pharmacological inhibition of CXCR1/CXCR2 during melanoma tumor induction resulted in key changes in gene expression that reduced tumor incidence/growth and increased anti-tumor immunity. Interestingly, after Cxcr2 ablation, Tfcp2l1, a key tumor suppressive transcription factor, was the only gene significantly induced with a log2 fold-change greater than 2 in these three different melanoma models. CONCLUSIONS Here, we provide novel mechanistic insight revealing how loss of Cxcr2 expression/activity in melanoma tumor progenitor cells results in reduced tumor burden and creation of an anti-tumor immune microenvironment. This mechanism entails an increase in expression of the tumor suppressive transcription factor, Tfcp2l1, along with alteration in the expression of genes involved in growth regulation, tumor suppression, stemness, differentiation, and immune modulation. These gene expression changes are coincident with reduction in the activation of key growth regulatory pathways, including AKT and mTOR.
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Affiliation(s)
- J Yang
- TVHS Department of Veterans Affairs, Nashville, TN, 37212, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN, 37240, USA
| | - K Bergdorf
- TVHS Department of Veterans Affairs, Nashville, TN, 37212, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN, 37240, USA
| | - C Yan
- TVHS Department of Veterans Affairs, Nashville, TN, 37212, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN, 37240, USA
| | - W Luo
- TVHS Department of Veterans Affairs, Nashville, TN, 37212, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN, 37240, USA
| | - S C Chen
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, 37203-1742, USA
| | - G D Ayers
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, 37203-1742, USA
| | - Q Liu
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, 37203-1742, USA
| | - X Liu
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, 37203-1742, USA
| | - M Boothby
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - V L Weiss
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - S M Groves
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - A N Oleskie
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN, 37240, USA
| | - X Zhang
- Department of Genomic Medicine, MD Anderson Cancer Center, University of Texas, Houston, TX, 77030, USA
| | - D Y Maeda
- Syntrix Pharmaceuticals, Auburn, WA, 98001, USA
| | - J A Zebala
- Syntrix Pharmaceuticals, Auburn, WA, 98001, USA
| | - V Quaranta
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN, 37240, USA
- Department of Biochemistry, Vanderbilt University, TN, 37240, Nashville, USA
| | - A Richmond
- TVHS Department of Veterans Affairs, Nashville, TN, 37212, USA.
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN, 37240, USA.
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Luo W, Li B, Xu M, Pang C, Lester E, Xu L, Kow KW. In-situ release and sequestration of CO 2 in cement composites using LTA zeolites. Sci Total Environ 2023; 872:162133. [PMID: 36773918 DOI: 10.1016/j.scitotenv.2023.162133] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/29/2023] [Accepted: 02/05/2023] [Indexed: 06/18/2023]
Abstract
This paper investigates the impact of in-situ release and sequestration of CO2 on the compressive strength, volume of permeable voids, phase change, hydration reaction, and micro-morphology of cement mortars. Two Linde Type A (LTA) zeolites with micro-pore dimensions of 5 Å and 4 Å (i.e., LTA 5A and 4A zeolites) were employed as CO2 carriers herein. The incorporation of 312 wt% plain LTA 5A and 4A zeolites increases the 1-day compressive strength of the mortars. However, the use of plain LTA 5A zeolite shows marginal contributions to the 7 and 28-day compressive strengths of the mortars, whilst using plain LTA 4A zeolite even deteriorates their 7 and 28-day compressive strengths. The micro-structural analyses reveal that the addition of LTA zeolites promotes the cement hydration and improves the mean chain length (MCL) of calcium aluminosilicate hydrates (C-A-S-H). Nevertheless, this introduces numerous weak points or even a porous structure to the cement matrix. In contrast, in-situ release of CO2 via LTA zeolites significantly enhances the compressive strengths of the mortars at various ages, as this can further facilitate the hydration evolution and improve the MCL of C-A-S-H. Moreover, in-situ release of CO2 brings an incremental content of calcium carbonates. The calcium carbonate contents in the specimens containing 12 wt% LTA 5A and 4A zeolites are increased by 5.3 wt% and 4.8 wt%, respectively. This leads to homogenous distributions of calcite with a grain size of 150600 nm. Thus, LTA 5A zeolite outperforms LTA 4A zeolite with regard to CO2 uptake and the corresponding mechanical properties. This work presents in initial exploration into the application of porous pozzolanic materials in conjunction of CO2 in cement-based materials.
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Affiliation(s)
- Wenjie Luo
- Department of Civil Engineering, University of Nottingham Ningbo China, 199 Taikang Road, Ningbo 315100, China; Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, 199 Taikang Road, Ningbo 315100, China
| | - Bo Li
- Department of Civil Engineering, University of Nottingham Ningbo China, 199 Taikang Road, Ningbo 315100, China; Key Laboratory for Carbonaceous Wastes Processing and Process Intensification Research of Zhejiang Province, University of Nottingham Ningbo China, Ningbo 315100, China; New Materials Institute, University of Nottingham Ningbo China, Ningbo 315100, China
| | - Mengxia Xu
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, 199 Taikang Road, Ningbo 315100, China; Key Laboratory for Carbonaceous Wastes Processing and Process Intensification Research of Zhejiang Province, University of Nottingham Ningbo China, Ningbo 315100, China; New Materials Institute, University of Nottingham Ningbo China, Ningbo 315100, China
| | - Chengheng Pang
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, 199 Taikang Road, Ningbo 315100, China; Key Laboratory for Carbonaceous Wastes Processing and Process Intensification Research of Zhejiang Province, University of Nottingham Ningbo China, Ningbo 315100, China
| | - Edward Lester
- Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK
| | - Liujie Xu
- School of Computer Science and Engineering, Faculty of Innovation Engineering, Macau University of Science and Technology, Macao 999078, China
| | - Kien-Woh Kow
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, 199 Taikang Road, Ningbo 315100, China; Key Laboratory for Carbonaceous Wastes Processing and Process Intensification Research of Zhejiang Province, University of Nottingham Ningbo China, Ningbo 315100, China.
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Udeochu JC, Amin S, Huang Y, Fan L, Torres ERS, Carling GK, Liu B, McGurran H, Coronas-Samano G, Kauwe G, Mousa GA, Wong MY, Ye P, Nagiri RK, Lo I, Holtzman J, Corona C, Yarahmady A, Gill MT, Raju RM, Mok SA, Gong S, Luo W, Zhao M, Tracy TE, Ratan RR, Tsai LH, Sinha SC, Gan L. Tau activation of microglial cGAS-IFN reduces MEF2C-mediated cognitive resilience. Nat Neurosci 2023; 26:737-750. [PMID: 37095396 PMCID: PMC10166855 DOI: 10.1038/s41593-023-01315-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 03/20/2023] [Indexed: 04/26/2023]
Abstract
Pathological hallmarks of Alzheimer's disease (AD) precede clinical symptoms by years, indicating a period of cognitive resilience before the onset of dementia. Here, we report that activation of cyclic GMP-AMP synthase (cGAS) diminishes cognitive resilience by decreasing the neuronal transcriptional network of myocyte enhancer factor 2c (MEF2C) through type I interferon (IFN-I) signaling. Pathogenic tau activates cGAS and IFN-I responses in microglia, in part mediated by cytosolic leakage of mitochondrial DNA. Genetic ablation of Cgas in mice with tauopathy diminished the microglial IFN-I response, preserved synapse integrity and plasticity and protected against cognitive impairment without affecting the pathogenic tau load. cGAS ablation increased, while activation of IFN-I decreased, the neuronal MEF2C expression network linked to cognitive resilience in AD. Pharmacological inhibition of cGAS in mice with tauopathy enhanced the neuronal MEF2C transcriptional network and restored synaptic integrity, plasticity and memory, supporting the therapeutic potential of targeting the cGAS-IFN-MEF2C axis to improve resilience against AD-related pathological insults.
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Affiliation(s)
- Joe C Udeochu
- Helen and Robert Appel Alzheimer's Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Sadaf Amin
- Helen and Robert Appel Alzheimer's Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA.
| | - Yige Huang
- Helen and Robert Appel Alzheimer's Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Li Fan
- Helen and Robert Appel Alzheimer's Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Eileen Ruth S Torres
- Helen and Robert Appel Alzheimer's Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Gillian K Carling
- Helen and Robert Appel Alzheimer's Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Bangyan Liu
- Helen and Robert Appel Alzheimer's Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Hugo McGurran
- The Gladstone Institute of Neurological Disease, San Francisco, CA, USA
| | - Guillermo Coronas-Samano
- Helen and Robert Appel Alzheimer's Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Grant Kauwe
- Buck Institute for Research on Aging, Novato, CA, USA
| | - Gergey Alzaem Mousa
- Helen and Robert Appel Alzheimer's Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Man Ying Wong
- Helen and Robert Appel Alzheimer's Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Pearly Ye
- Helen and Robert Appel Alzheimer's Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Ravi Kumar Nagiri
- Helen and Robert Appel Alzheimer's Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Iris Lo
- The Gladstone Institute of Neurological Disease, San Francisco, CA, USA
| | - Julia Holtzman
- The Gladstone Institute of Neurological Disease, San Francisco, CA, USA
| | - Carlo Corona
- Burke Neurological Institute at Weill Cornell Medicine, White Plains, NY, USA
| | - Allan Yarahmady
- Department of Biochemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Michael T Gill
- The Gladstone Institute of Neurological Disease, San Francisco, CA, USA
| | - Ravikiran M Raju
- The Picower Institute of Learning and Memory, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
- Division of Newborn Medicine, Boston Children's Hospital, Boston, MA, USA
| | - Sue-Ann Mok
- Department of Biochemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Shiaoching Gong
- Helen and Robert Appel Alzheimer's Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Wenjie Luo
- Helen and Robert Appel Alzheimer's Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Mingrui Zhao
- Helen and Robert Appel Alzheimer's Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Tara E Tracy
- Buck Institute for Research on Aging, Novato, CA, USA
| | - Rajiv R Ratan
- Burke Neurological Institute at Weill Cornell Medicine, White Plains, NY, USA
| | - Li-Huei Tsai
- The Picower Institute of Learning and Memory, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Subhash C Sinha
- Helen and Robert Appel Alzheimer's Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Li Gan
- Helen and Robert Appel Alzheimer's Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA.
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Uekawa K, Hattori Y, Ahn SJ, Seo J, Casey N, Anfray A, Zhou P, Luo W, Anrather J, Park L, Iadecola C. Border-associated macrophages promote cerebral amyloid angiopathy and cognitive impairment through vascular oxidative stress. Res Sq 2023:rs.3.rs-2719812. [PMID: 37162996 PMCID: PMC10168479 DOI: 10.21203/rs.3.rs-2719812/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: 05/11/2023]
Abstract
Background: Cerebral amyloid angiopathy (CAA) is a devastating condition common in patients with Alzheimer's disease but also observed in the general population. Vascular oxidative stress and neurovascular dysfunction have been implicated in CAA but the cellular source of reactive oxygen species (ROS) and related signaling mechanisms remain unclear. We tested the hypothesis that brain border-associated macrophages (BAM), yolk sac-derived myeloid cells closely apposed to parenchymal and leptomeningeal blood vessels, are the source of radicals through the Aβ-binding innate immunity receptor CD36, leading to neurovascular dysfunction, CAA, and cognitive impairment. Methods: Tg2576 mice and WT littermates were transplanted with CD36 -/- or CD36 +/+ bone marrow at 12-month of age and tested at 15 months. This approach enables the repopulation of perivascular and leptomeningeal compartments with CD36 -/- BAM. Neurovascular function was tested in anesthetized mice equipped with a cranial window in which cerebral blood flow was monitored by laser-Doppler flowmetry. Amyloid pathology and cognitive function were also examined. Results: The increase in blood flow evoked by whisker stimulation (functional hyperemia) or by endothelial and smooth muscle vasoactivity was markedly attenuated in WT®Tg2576 chimeras but was fully restored in CD36 -/- ®Tg2576 chimeras, in which BAM ROS production was suppressed. CAA-associated Aβ 1-40 , but not Aβ 1-42 , was reduced in CD36 -/- ®Tg2576 chimeras. Similarly, CAA, but not parenchymal plaques, was reduced in CD36 -/- ®Tg2576 chimeras. These beneficial vascular effects were associated with cognitive improvement. Finally, CD36 -/- mice were able to more efficiently clear exogenous Aβ 1-40 injected into the neocortex or the striatum. Conclusions: CD36 deletion in BAM suppresses ROS production and rescues the neurovascular dysfunction and damage induced by Aβ. CD36 deletion in BAM also reduced brain Aβ 1-40 and ameliorated CAA without affecting parenchyma plaques. Lack of CD36 enhanced the vascular clearance of exogenous Aβ. Restoration of neurovascular function and attenuation of CAA resulted in a near complete rescue of cognitive function. Collectively, these data implicate CNS BAM in the pathogenesis of CAA and raise the possibility that targeting BAM CD36 is beneficial in CAA and other conditions associated with vascular Aβ deposition and damage.
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Zhang X, Miao J, Yang J, Liu C, Huang J, Song J, Xie D, Yue C, Kong W, Hu J, Luo W, Liu S, Li F, Zi W. DWI-Based Radiomics Predicts the Functional Outcome of Endovascular Treatment in Acute Basilar Artery Occlusion. AJNR Am J Neuroradiol 2023; 44:536-542. [PMID: 37080720 PMCID: PMC10171394 DOI: 10.3174/ajnr.a7851] [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: 12/27/2022] [Accepted: 03/15/2023] [Indexed: 04/22/2023]
Abstract
BACKGROUND AND PURPOSE Endovascular treatment is a reference treatment for acute basilar artery occlusion (ABAO). However, no established and specific methods are available for the preoperative screening of patients with ABAO suitable for endovascular treatment. This study explores the potential value of DWI-based radiomics in predicting the functional outcomes of endovascular treatment in ABAO. MATERIALS AND METHODS Patients with ABAO treated with endovascular treatment from the BASILAR registry (91 patients in the training cohort) and the hospitals in the Northwest of China (31 patients for the external testing cohort) were included in this study. The Mann-Whitney U test, random forests algorithm, and least absolute shrinkage and selection operator were used to reduce the feature dimension. A machine learning model was developed on the basis of the training cohort to predict the prognosis of endovascular treatment. The performance of the model was evaluated on the independent external testing cohort. RESULTS A subset of radiomics features (n = 6) was used to predict the functional outcomes in patients with ABAO. The areas under the receiver operating characteristic curve of the radiomics model were 0.870 and 0.781 in the training cohort and testing cohort, respectively. The accuracy of the radiomics model was 77.4%, with a sensitivity of 78.9%, specificity of 75%, positive predictive value of 83.3%, and negative predictive value of 69.2% in the testing cohort. CONCLUSIONS DWI-based radiomics can predict the prognosis of endovascular treatment in patients with ABAO, hence allowing a potentially better selection of patients who are most likely to benefit from this treatment.
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Affiliation(s)
- X Zhang
- From the Department of Neurology (X.Z., J.M., J.Y., C.L., J.H., J.S., D.X., C.Y., W.K., J.H., W.L., S.L., F.L., W.Z.), Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, China
- Department of Neurology (X.Z.), The Affiliated Hospital of Northwest University Xi'an No.3 Hospital, Xian, China
| | - J Miao
- From the Department of Neurology (X.Z., J.M., J.Y., C.L., J.H., J.S., D.X., C.Y., W.K., J.H., W.L., S.L., F.L., W.Z.), Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, China
- Department of Neurology (J.M.), Xianyang Hospital of Yan'an University, Xianyang, China
| | - J Yang
- From the Department of Neurology (X.Z., J.M., J.Y., C.L., J.H., J.S., D.X., C.Y., W.K., J.H., W.L., S.L., F.L., W.Z.), Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - C Liu
- From the Department of Neurology (X.Z., J.M., J.Y., C.L., J.H., J.S., D.X., C.Y., W.K., J.H., W.L., S.L., F.L., W.Z.), Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - J Huang
- From the Department of Neurology (X.Z., J.M., J.Y., C.L., J.H., J.S., D.X., C.Y., W.K., J.H., W.L., S.L., F.L., W.Z.), Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - J Song
- From the Department of Neurology (X.Z., J.M., J.Y., C.L., J.H., J.S., D.X., C.Y., W.K., J.H., W.L., S.L., F.L., W.Z.), Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - D Xie
- From the Department of Neurology (X.Z., J.M., J.Y., C.L., J.H., J.S., D.X., C.Y., W.K., J.H., W.L., S.L., F.L., W.Z.), Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - C Yue
- From the Department of Neurology (X.Z., J.M., J.Y., C.L., J.H., J.S., D.X., C.Y., W.K., J.H., W.L., S.L., F.L., W.Z.), Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - W Kong
- From the Department of Neurology (X.Z., J.M., J.Y., C.L., J.H., J.S., D.X., C.Y., W.K., J.H., W.L., S.L., F.L., W.Z.), Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - J Hu
- From the Department of Neurology (X.Z., J.M., J.Y., C.L., J.H., J.S., D.X., C.Y., W.K., J.H., W.L., S.L., F.L., W.Z.), Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - W Luo
- From the Department of Neurology (X.Z., J.M., J.Y., C.L., J.H., J.S., D.X., C.Y., W.K., J.H., W.L., S.L., F.L., W.Z.), Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - S Liu
- From the Department of Neurology (X.Z., J.M., J.Y., C.L., J.H., J.S., D.X., C.Y., W.K., J.H., W.L., S.L., F.L., W.Z.), Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - F Li
- From the Department of Neurology (X.Z., J.M., J.Y., C.L., J.H., J.S., D.X., C.Y., W.K., J.H., W.L., S.L., F.L., W.Z.), Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - W Zi
- From the Department of Neurology (X.Z., J.M., J.Y., C.L., J.H., J.S., D.X., C.Y., W.K., J.H., W.L., S.L., F.L., W.Z.), Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, China
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Luo W, Wu S, Jiang Y, Xu P, Zou J, Qian J, Zhou X, Ge Y, Nie H, Yang Z. Efficient Electrocatalytic Nitrate Reduction to Ammonia Based on DNA-Templated Copper Nanoclusters. ACS Appl Mater Interfaces 2023; 15:18928-18939. [PMID: 37014152 DOI: 10.1021/acsami.3c00511] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
In alkaline solutions, the electrocatalytic conversion of nitrates to ammonia (NH3) (NO3RR) is hindered by the sluggish hydrogenation step due to the lack of protons on the electrode surface, making it a grand challenge to synthesize NH3 at a high rate and selectivity. Herein, single-stranded deoxyribonucleic acid (ssDNA)-templated copper nanoclusters (CuNCs) were synthesized for the electrocatalytic production of NH3. Because ssDNA was involved in the optimization of the interfacial water distribution and H-bond network connectivity, the water-electrolysis-induced proton generation was enhanced on the electrode surface, which facilitated the NO3RR kinetics. The activation energy (Ea) and in situ spectroscopy studies adequately demonstrated that the NO3RR was exothermic until NH3 desorption, indicating that, in alkaline media, the NO3RR catalyzed by ssDNA-templated CuNCs followed the same reaction path as the NO3RR in acidic media. Electrocatalytic tests further verified the efficiency of ssDNA-templated CuNCs, which achieved a high NH3 yield rate of 2.62 mg h-1 cm-2 and a Faraday efficiency of 96.8% at -0.6 V vs reversible hydrogen electrode. The results of this study lay the foundation for engineering catalyst surface ligands for the electrocatalytic NO3RR.
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Affiliation(s)
- Wenjie Luo
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
| | - Shilu Wu
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
| | - Yingyang Jiang
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
| | - Peng Xu
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
| | - Jinxuan Zou
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
| | - Jinjie Qian
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
| | - Xuemei Zhou
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
| | - Yongjie Ge
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
| | - Huagui Nie
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
| | - Zhi Yang
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
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Yang J, Bergdorf K, Yan C, Luo W, Chen SC, Ayers D, Liu Q, Liu X, Boothby M, Groves SM, Oleskie AN, Zhang X, Maeda DY, Zebala JA, Quaranta V, Richmond A. CXCR2 expression during melanoma tumorigenesis controls transcriptional programs that facilitate tumor growth. bioRxiv 2023:2023.02.22.529548. [PMID: 36865260 PMCID: PMC9980137 DOI: 10.1101/2023.02.22.529548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Background Though the CXCR2 chemokine receptor is known to play a key role in cancer growth and response to therapy, a direct link between expression of CXCR2 in tumor progenitor cells during induction of tumorigenesis has not been established. Methods To characterize the role of CXCR2 during melanoma tumorigenesis, we generated tamoxifen-inducible tyrosinase-promoter driven Braf V600E /Pten -/- /Cxcr2 -/- and NRas Q61R /INK4a -/- /Cxcr2 -/- melanoma models. In addition, the effects of a CXCR1/CXCR2 antagonist, SX-682, on melanoma tumorigenesis were evaluated in Braf V600E /Pten -/- and NRas Q61R /INK4a -/- mice and in melanoma cell lines. Potential mechanisms by which Cxcr2 affects melanoma tumorigenesis in these murine models were explored using RNAseq, mMCP-counter, ChIPseq, and qRT-PCR; flow cytometry, and reverse phosphoprotein analysis (RPPA). Results Genetic loss of Cxcr2 or pharmacological inhibition of CXCR1/CXCR2 during melanoma tumor induction resulted in key changes in gene expression that reduced tumor incidence/growth and increased anti-tumor immunity. Interestingly, after Cxcr2 ablation, Tfcp2l1 , a key tumor suppressive transcription factor, was the only gene significantly induced with a log 2 fold-change greater than 2 in these three different melanoma models. Conclusions Here, we provide novel mechanistic insight revealing how loss of Cxcr2 expression/activity in melanoma tumor progenitor cells results in reduced tumor burden and creation of an anti-tumor immune microenvironment. This mechanism entails an increase in expression of the tumor suppressive transcription factor, Tfcp2l1, along with alteration in the expression of genes involved in growth regulation, tumor suppression, stemness, differentiation, and immune modulation. These gene expression changes are coincident with reduction in the activation of key growth regulatory pathways, including AKT and mTOR.
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Luo W, Wang C, Min J, Luo H. Gold nanoclusters Cys-Au NCs as selective fluorescent probes for "on-off-on" detection of Fe 3+ and ascorbic acid. RSC Adv 2023; 13:7425-7431. [PMID: 36895769 PMCID: PMC9990083 DOI: 10.1039/d3ra00410d] [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: 01/19/2023] [Accepted: 02/15/2023] [Indexed: 03/09/2023] Open
Abstract
Gold nanoclusters exhibit attractive properties owing to their excellent biocompatibility and strong photostability in the biomedical domain. In this research, cysteine-protected fluorescent gold nanoclusters (Cys-Au NCs) were synthesized via decomposing Au(i)-thiolate complexes for the detection of Fe3+ and ascorbic acid in a bidirectional "on-off-on" mode. Meanwhile, the detailed characterization confirmed that the mean particle size of the prepared fluorescent probe was 2.43 nm and showed a fluorescence quantum yield of 3.31%. In addition, our results indicate that the fluorescence probe for ferric ions exhibited a broad detection scope ranging from 0.1 to 2000 μM and excellent selectivity. The as-prepared Cys-Au NCs/Fe3+ was demonstrated to be an ultrasensitive and selective nanoprobe for the detection of ascorbic acid. This study indicated that the "on-off-on" fluorescent probes Cys-Au NCs held a promising application for the bidirectional detection of Fe3+ and ascorbic acid. Furthermore, our novel "on-off-on" fluorescent probes provided insight into the rational design of thiolate-protected gold nanoclusters for biochemical analysis of high selectivity and sensitivity.
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Affiliation(s)
- Wenjie Luo
- Department of Pharmacy, Xiangyang No.1 People's Hospital, Hubei University of Medicine Xiangyang 441000 China
| | - Changxu Wang
- Department of Pharmacy, Taihe Hospital, Hubei University of Medicine Shiyan 442000 China
| | - Jieshu Min
- Department of Pharmacy, Xiangyang No.1 People's Hospital, Hubei University of Medicine Xiangyang 441000 China
| | - Huiyu Luo
- Department of Anesthesiology, Xiangyang Key Laboratory of Movement Disorders, Xiangyang No.1 People's Hospital, Hubei University of Medicine Xiangyang 441000 China
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Deng Z, Meng Y, Zhao L, Luo W, Zhang J, Hu J, Jiang H, Zhang Q. BMSC cells alleviate liver injury induced by ulcerative colitis via repairing the intestinal-liver barrier and activating hepatocyte growth factor. Cell Mol Biol (Noisy-le-grand) 2023; 69:19-25. [PMID: 37224050 DOI: 10.14715/cmb/2022.69.2.4] [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: 10/09/2022] [Indexed: 05/26/2023]
Abstract
Ulcerative colitis (UC), which belongs to inflammatory bowel diseases (IBD), frequently induces liver inflammation and injury. Previous studies have proved that bone marrow-derived mesenchymal stem cells (BMSCs) can suppress inflammation and improve intestinal mucosal injury in colitis, however, the effects of BMSCs on colitis-induced liver injury and the underlying molecular mechanisms remain unclear. Here, we investigated the effects and mechanisms of BMSCs in acute ulcerative colitis BALB/c mice, which were induced by 4 % dextran sodium sulphate (DSS). In this study, BMSCs derived from BALB/c mice were administrated by single intravenous injection with a dose of 5*10^7 cells/kg. And then, the effects and underlying molecular mechanisms were investigated. Firstly, the degree of liver injury in colitis mice was evaluated by hepatic ALT, AST, ALP and TBIL levels, which were measured by specific determination kits, the levels of TNF-α, IL-6, IFNγ and LPS were examined by ELISA. Secondly, as the indicator of intestinal-liver barrier disorder, tight junction proteins were analyzed by western blot. Thirdly, the pathological changes in the colon and liver were detected by H&E staining. At last, homing of BMSCs to lesion tissues was investigated by Immunofluorescence. The results indicated that histopathological changes in model mice had been greatly alleviated, BMSCs infusion remarkably decreased the serum ALT, AST, ALP and TBIL levels, and meanwhile reduced pro-inflammatory cytokines in liver tissues. Furthermore, homing of BMSCs was observed in the colon and liver, and the disorder of the intestinal-liver barrier declined significantly. In conclusion, BMSCs alleviate liver injury induced by ulcerative colitis via repairing the intestinal-liver barrier and activating hepatocyte growth factor, it has potential application prospects in the treatment of liver injury induced by ulcerative colitis.
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Affiliation(s)
- Zhejun Deng
- Guangxi Medical University, Nanning 530021, China.
| | - Yunchao Meng
- Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin 541002, China.
| | - Lei Zhao
- Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin 541002, China.
| | - Wenjie Luo
- Guilin Medical University, Guilin 541001, China.
| | - Jing Zhang
- Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin 541002, China.
| | - Jie Hu
- Guilin Medical University, Guilin 541001, China.
| | | | - Qifang Zhang
- Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin 541002, China.
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Lin ZT, Chen GH, Peng X, Zhang ZH, Li T, Lin HX, Liang SS, Zheng YB, Yao ZP, Luo W. A 2-bp deletion in intron 1 of TMEM182 is associated with TMEM182 mRNA expression and chicken body weight. Br Poult Sci 2023; 64:11-18. [PMID: 35759289 DOI: 10.1080/00071668.2022.2094217] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
1. Searching for molecular markers related to growth and carcase traits plays a critical role in improvement of the production performance of broilers. Previous studies found that transmembrane protein 182 (TMEM182) inhibits skeletal muscle development, growth, and regeneration, implying that the TMEM182 gene plays an important role during the development process of skeletal muscle.2. A novel 2-bp indel in intron 1 of TMEM182 was detected in a yellow chicken population derived from the cross of White Recessive Rock chickens with Xinghua chickens, and three genotypes II (inserted homozygote), ID (inserted and deleted heterozygote) and DD (deleted homozygote) were observed. Association analyses indicated that the indel was significantly associated with the body weight, muscle fibre area, breast muscle weight and wing weight in the F2 population.3. The expression of TMEM182 in leg muscle of chickens with II genotype was higher than that with DD genotype, with the 2-bp indel located in one of the putative PAX4 binding sites. Further research through luciferase assays revealed that the PAX4 could bind to the putative binding site and increase the TMEM182 transcription, with the 2-bp deletion disrupting the binding of PAX4.4. The present study provides evidence for the association of the novel 2-bp indel in intron 1 of TMEM182 with the growth and carcase traits of chickens. This 2-bp indel could be used as a genetic marker in broiler breeding.
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Affiliation(s)
- Z T Lin
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong, China
| | - G H Chen
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong, China
| | - X Peng
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong, China
| | - Z H Zhang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong, China
| | - T Li
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong, China
| | - H X Lin
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong, China
| | - S S Liang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong, China
| | - Y B Zheng
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong, China
| | - Z P Yao
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong, China
| | - W Luo
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong, China
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Sun XY, Han LH, Li XX, Hu BL, Luo W, Liu L. Transmutation of MAs and LLFPs with a lead-cooled fast reactor. Sci Rep 2023; 13:1693. [PMID: 36717698 PMCID: PMC9886923 DOI: 10.1038/s41598-023-29002-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 01/27/2023] [Indexed: 01/31/2023] Open
Abstract
The management of nuclear wastes has long been a problem that hinders the sustainable and clean utilization of nuclear energy since the advent of nuclear power. These nuclear wastes include minor actinides (MAs: 237Np, 241Am, 243Am, 244Cm and 245Cm) and long-lived fission products (LLFPs: 79Se, 93Zr, 99Tc, 107Pd, 129I and 135Cs), and yet are hard to be handled. In this work, we propose a scheme that can transmute almost all the MAs and LLFPs with a lead-cooled fast reactor (LFR). In this scheme, the MAs and the LLFPs are loaded to the fuel assembly and the blanket assembly for transmutation, respectively. In order to study the effect of MAs loading on the operation of the core, the neutron flux distribution, spectra, and the keff are further compared with and without MAs loading. Then the LLFPs composition is optimized and the support ratio is obtained to be 1.22 for 237Np, 1.63 for 241Am, 1.27 for 243Am, 1.32 for 79Se, 1.53 for 99Tc, 1.02 for 107Pd, and 1.12 for 129I, respectively, indicating that a self-sustained transmutation can be achieved. Accordingly, the transmutation rate of these nuclides was 13.07%/y for 237Np, 15.18%/y for 241Am, 13.34%/y for 243Am, 0.58%/y for 79Se, 0.92%/y for 99Tc, 1.17%/y for 107Pd, 0.56%/y for 129I. Our results show that a lead-cooled fast reactor can be potentially used to manage nuclear wastes with high levels of long-lived radioactivity.
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Affiliation(s)
- X. Y. Sun
- grid.412017.10000 0001 0266 8918School of Nuclear Science and Technology, University of South China, Hengyang, 421001 China
| | - L. H. Han
- grid.412017.10000 0001 0266 8918School of Mechanical Engineering, University of South China, Hengyang, 421000 China
| | - X. X. Li
- grid.412017.10000 0001 0266 8918School of Nuclear Science and Technology, University of South China, Hengyang, 421001 China
| | - B. L. Hu
- grid.412017.10000 0001 0266 8918School of Nuclear Science and Technology, University of South China, Hengyang, 421001 China
| | - W. Luo
- grid.412017.10000 0001 0266 8918School of Nuclear Science and Technology, University of South China, Hengyang, 421001 China
| | - L. Liu
- grid.412017.10000 0001 0266 8918School of Nuclear Science and Technology, University of South China, Hengyang, 421001 China ,grid.412017.10000 0001 0266 8918School of Mechanical Engineering, University of South China, Hengyang, 421000 China
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Tsuppayakorn-Aek P, Bovornratanaraks T, Ahuja R, Luo W, Kotmool K. Hydrogen-induced phase stability and phonon mediated-superconductivity in two-dimensional van der Waals Ti 2C MXene monolayer. Phys Chem Chem Phys 2023; 25:2227-2233. [PMID: 36594791 DOI: 10.1039/d2cp05470a] [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: 12/13/2022]
Abstract
Herein, we report the phase stability of the hydrogenated Ti2C MXene monolayer using an evolutionary algorithm based on density functional theory. We predict the existence of hexagonal Ti2CH, Ti2CH2, and Ti2CH4. The dynamic and energetic stabilities of the predicted structures are verified through phonon dispersion and formation energy, respectively. The electron-phonon coupling is carefully investigated by employing isotropic Eliashberg theory. The Tc values are 0.2 K, 2.3 K, and 9.0 K for Ti2CH, Ti2CH2, and Ti2CH4, respectively. The translation and libration adopted by stretch and bent vibrations contribute to the increasing Tc of Ti2CH4. The high-frequency hydrogen modes contribute to the critical temperature increase. Briefly, this work not only highlights the effect of H-content on the increments of Tc for Ti2CHx, but also demonstrates the first theoretical evidence of the existence of H-rich MXene in the example of Ti2CH4. Therefore, it potentially provides a guideline for developing hydrogenated 2D superconductive applications.
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Affiliation(s)
- P Tsuppayakorn-Aek
- Extreme Conditions Physics Research Laboratory and Center of Excellence in Physics of Energy Materials (CE:PEM), Department of Physics, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - T Bovornratanaraks
- Extreme Conditions Physics Research Laboratory and Center of Excellence in Physics of Energy Materials (CE:PEM), Department of Physics, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - R Ahuja
- Condensed Matter Theory Group, Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Box 516, SE-751 20, Uppsala, Sweden.,Department of Physics, Indian Institute of Technology (IIT) Ropar, Rupnagar 140001, Punjab, India
| | - W Luo
- Condensed Matter Theory Group, Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Box 516, SE-751 20, Uppsala, Sweden
| | - K Kotmool
- College of Advanced Manufacturing Innovation, King Mongkut's Institute of Technology Ladkrabang, Bangkok, 10520, Thailand.,Electronic and Optoelectronic Device Research Unit, School of Science, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand.
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Luo W, Qiu Q, Liu R, Yu Y, Wu Q, Peng J, Cai X, Yu J, Chen X, Yu H. Non-preheating fabricated semitransparent quasi-2D perovskite solar cells. Chem Commun (Camb) 2023; 59:430-433. [PMID: 36515140 DOI: 10.1039/d2cc05797b] [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: 12/12/2022]
Abstract
Although the hot-casting (HC) method can obtain efficient quasi-2D perovskite solar cells, this method cannot effectively control the uniformity of the thin film, and the high preheating substrate temperature will also form low n perovskite phases (n = 2) at the interface, which is not conducive to the transport of carriers. Semitransparent solar cells have great application prospects in building-integrated photovoltaic and tandem devices. Herein, a non-preheating (NP) film-casting method is proposed to realize a highly uniform and phase controllable quasi-2D perovskite film (BA2MA3Pb4I13, BA+:C4H11NH3+, MA+:CH3NH3+). As a result, the NP-processed film gets the highest light utilization efficiency (LUE = 4.01%) for semitransparent quasi-2D perovskite solar cells (ST-Quasi-2D-PSCs) with power conversion efficiency (PCE) of 9.60%, average visible transmittance (AVT) of 41.73%, good bifaciality factor, high LUE in low light intensity and good stability.
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Affiliation(s)
- Wenjie Luo
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, P. R. China.
| | - Qingqing Qiu
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, P. R. China.
| | - Rui Liu
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, P. R. China.
| | - Yue Yu
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, P. R. China.
| | - Qiaofeng Wu
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, P. R. China.
| | - Jin Peng
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, P. R. China.
| | - Xudong Cai
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, P. R. China.
| | - Jian Yu
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, P. R. China.
| | - Xin Chen
- Center for Computational Chemistry and Molecular Simulation, College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, China
| | - Hua Yu
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, P. R. China.
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38
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Carling G, Luo W, Gan L. Friend turned foe: TREM2 agonist in battles against tau. J Exp Med 2023; 220:e20221850. [PMID: 36399126 PMCID: PMC9680035 DOI: 10.1084/jem.20221850] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
In this important study, Jain et al. (2022. J. Exp. Med.https://doi.org/10.1084/jem.20220654) find that chronic TREM2 activation by AL002a antibody exacerbates the seeding and spread of pathological tau, enhances the disease-associated microglial signature, and increases neurite dystrophy in 5xFAD mice seeded with Alzheimer's disease tau.
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Affiliation(s)
- Gillian Carling
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY
- Neuroscience Graduate Program, Weill Cornell Medicine, New York, NY
| | - Wenjie Luo
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY
| | - Li Gan
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY
- Neuroscience Graduate Program, Weill Cornell Medicine, New York, NY
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39
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Zhang Z, Luo W. Hierarchical volumetric transformer with comprehensive attention for medical image segmentation. Math Biosci Eng 2023; 20:3177-3190. [PMID: 36899576 DOI: 10.3934/mbe.2023149] [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] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Transformer is widely used in medical image segmentation tasks due to its powerful ability to model global dependencies. However, most of the existing transformer-based methods are two-dimensional networks, which are only suitable for processing two-dimensional slices and ignore the linguistic association between different slices of the original volume image blocks. To solve this problem, we propose a novel segmentation framework by deeply exploring the respective characteristic of convolution, comprehensive attention mechanism, and transformer, and assembling them hierarchically to fully exploit their complementary advantages. Specifically, we first propose a novel volumetric transformer block to help extract features serially in the encoder and restore the feature map resolution to the original level in parallel in the decoder. It can not only obtain the information of the plane, but also make full use of the correlation information between different slices. Then the local multi-channel attention block is proposed to adaptively enhance the effective features of the encoder branch at the channel level, while suppressing the invalid features. Finally, the global multi-scale attention block with deep supervision is introduced to adaptively extract valid information at different scale levels while filtering out useless information. Extensive experiments demonstrate that our proposed method achieves promising performance on multi-organ CT and cardiac MR image segmentation.
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Affiliation(s)
- Zhuang Zhang
- School of Cybersecurity and Computer, Hebei University, Baoding 071002, China
| | - Wenjie Luo
- School of Cybersecurity and Computer, Hebei University, Baoding 071002, China
- Laboratory of Intelligence Image and Text, Hebei University, Baoding 071002, China
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40
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Tian ML, Xu J, Luo W. [Analysis of the current status of needle and syringe exchange programmes for injecting drug users in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:1907-1911. [PMID: 36572462 DOI: 10.3760/cma.j.cn112338-20220630-00579] [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: 12/29/2022]
Abstract
Objective: To analyze the needle and syringe exchange programme (NSEP) implementation among injecting drug users (IDUs) in China and provide data support and a scientific reference for intervention among IDUs. Methods: All the statistical reports of high-risk behavior interventions during 2007-2021 were collected from the HIV/AIDS Comprehensive Response Information Management System. Descriptive analysis was used to analyze the changes in the number of NSEP points, regional distribution of NSEP points, the number of people covered, and the HIV detection rate in China from 2007 to 2021. Excel 2016 software was used to plot the variation trend. SAS 9.4 software was used for the needle recovery and HIV-positive detection rate to do the χ2 trend test. Results: There were 578 NSEP sites in 11 provinces (autonomous regions and municipalities) by the end of 2021, covering 21 215 IDUs. 2014-2021, the number of NSEP sites and the number of IDUs covered decreased year by year. Each injecting drug user participating in NSEP received more than 200 clean needles annually. The needle recovery rate showed an increasing trend(Z=170.26, P<0.001) from 2009 to 2016 but showed a decreasing trend (Z=-91.96, P<0.001) from 2016 to 2021. The rate of HIV-positive in IDUs participating in NSEP showed a downward trend (Z=-66.53, P<0.001), which decreased from 5.8% (2 709/46 591) in 2011 to 0.1% (19/21 215) in 2021, decreasing 98.3%. Conclusions: NSEP is a vital intervention to prevent HIV transmission through injecting drugs. There were still many difficulties. It is necessary to strengthen further communication and coordination with government and public security departments to understand and support for NSEP. Targeted publicity and education are needed to be carried out for local IDUs to encourage them to participate in NSEP and reduce their dropout. Meanwhile, peer educators supervision and management also need to be strengthened.
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Affiliation(s)
- M L Tian
- Division of Health Education and Behavioral Intervention, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - J Xu
- Division of Health Education and Behavioral Intervention, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - W Luo
- Division of Health Education and Behavioral Intervention, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Li H, Shen J, Zhang Y, Hu L, Luo W. 6-Shogaol protects against isoproterenol-induced cardiac injury in rats through attenutating oxidative stress, inflammation, apoptosis and activating nuclear respiratory factor-2/heme oxygenase-1 signaling pathway. J Physiol Pharmacol 2022; 73. [PMID: 37087565 DOI: 10.26402/jpp.2022.6.06] [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] [Received: 08/23/2022] [Accepted: 12/31/2022] [Indexed: 04/24/2023]
Abstract
The current study investigated the preventive effect of 6-Shogaol on isoproterenol hydrochloride (ISO)-induced myocardial cardiac injury. 6-Shogaol (50 mg/kg b.w.) was administered for 14 days at pretreatment and ISO-induction (85 mg/kg b.w.) for the last two days (13th and 14th days) by subcutaneous injection. Cardiac markers in serum like creatine kinase (CK), creatine kinase-MB (CK-MB), lactate dehydrogenase (LDH), cardiac troponins T (cTn T) and I (cTn I) increased in ISO-induced rats. Moreover, lipid peroxidative markers like thiobarbituric acid reactive substances (TBARS) and lipid hydroperoxides (LOOH) were raised, and the activities/level of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) and reduced glutathione (GSH) were diminished in ISO-treated heart tissue. In addition, inflammatory and nuclear respiratory factor (Nrf)-2 signalling molecules were upregulated in ISO-induced ischemic rats. 6-Shogaol pretreatment decreased the activities of cardiac and lipid peroxidative markers and enhanced the antioxidant status in ISO-induced cardiac injury rats. Further, 6-Shogaol pretreatment inhibited serum inflammatory markers: tumour necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), nuclear factor-kappaB (NF-κB), Nrf-2 molecule and heme oxygenase (HO)-1 in ISO-induced cardial damage rats. We noticed the effect of 6-Shogaol inhibited pro-apoptotic genes like B-cell lymphoma 2 (Bcl-2)-associated X protein (Bax), Fas, caspase-3, -8, -9, cytochrome C, and inflammatory genes and increased Bcl-2 expression in ISO-treated rats. The cardioprotective activity of 6-Shogaol in rats with ISO-induced myocardial damage may be due to its ability to reduce oxidative stress, inflammation, and apoptosis, perhaps via the Nrf-2/HO-1 signalling pathway.
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Affiliation(s)
- H Li
- Department of Cardiology, Huizhou Municipal Central Hospital, Huizhou 516000, China.
| | - J Shen
- Department of Cardiology, Huizhou Municipal Central Hospital, Huizhou 516000, China
| | - Y Zhang
- Department of Cardiology, Huizhou Municipal Central Hospital, Huizhou 516000, China
| | - L Hu
- Department of Cardiology, Huizhou Third People's Hospital, Huizhou, 516000, China
| | - W Luo
- Department of Cardiology, Huizhou Third People's Hospital, Huizhou, 516000, China
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Zeng Y, Cai X, Li J, Ye J, Han G, Luo W, WU C, Qin S, GU W, Zhao S, Zhao Y, Xia B, Du X, Liu Y, Fu X. Postoperative Radiotherapy Involving Tumor Bed with or without Elective Nodal Irradiation in Patients with Locally Advanced Esophageal Squamous Cell Carcinoma: A Multi-Center, Prospective Randomized Phase II Trial. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.561] [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: 11/28/2022]
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43
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Shu H, Peng C, Chen Q, Huang Z, Deng C, Luo W, Li H, Zhang W, Zhang W, Huang Y. Strategy of Enhancing Built-in Field to Promote the Application of C-TiO 2 /SnO 2 Bilayer Electron Transport Layer in High-Efficiency Perovskite Solar Cells (24.3%). Small 2022; 18:e2204446. [PMID: 36166716 DOI: 10.1002/smll.202204446] [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] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/05/2022] [Indexed: 06/16/2023]
Abstract
Combining two kinds of electron transport layer (ETL) which have complementary advantages into a bilayer structure to form a bilayer ETL is an effective way to transcend inherent limitations of single-layer ETL, which is very helpful in the development of perovskite solar cells (PSCs). In this work, a strategy is proposed to break constraints on the application of the staggered bilayer ETL in high-efficiency PSC, namely utilizing a built-in field to overcome the dilemma in ECBM making it possible to improve VOC and FF simultaneously by tuning the Fermi level of ETLs properly. According to the strategy, a bilayer ETL structure comprised of C-TiO2 and SnO2 layer and corresponding Li-doping process are developed, and the characterization results confirm the effectiveness of the strategy, making the potentials of the C-TiO2 (Li)/SnO2 bilayer ETL fully released for its application in high-efficiency PSCs: a VOC of 1.201 V for an ordinary triple-cation-perovskite-based PSC and a photoelectric conversion efficiency of 24.3% for a low-bandgap-perovskite-based PSC with high haze FTO superstrate are successfully achieved, indicating that the C-TiO2 (Li)/SnO2 bilayer ETL is a successful application paradigm of the proposed strategy and very promising in the application of high-efficiency PSCs.
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Affiliation(s)
- Hui Shu
- Institute of Photovoltaic, Southwest Petroleum University, Chengdu, Sichuan, 610500, China
| | - Changtao Peng
- Institute of Photovoltaic, Southwest Petroleum University, Chengdu, Sichuan, 610500, China
| | - Qian Chen
- Institute of Photovoltaic, Southwest Petroleum University, Chengdu, Sichuan, 610500, China
| | - Zhangfeng Huang
- Institute of Photovoltaic, Southwest Petroleum University, Chengdu, Sichuan, 610500, China
| | - Chen Deng
- Institute of Photovoltaic, Southwest Petroleum University, Chengdu, Sichuan, 610500, China
| | - Wenjie Luo
- Institute of Photovoltaic, Southwest Petroleum University, Chengdu, Sichuan, 610500, China
| | - Haijin Li
- Institute of Photovoltaic, Southwest Petroleum University, Chengdu, Sichuan, 610500, China
| | - Wenfeng Zhang
- Institute of Photovoltaic, Southwest Petroleum University, Chengdu, Sichuan, 610500, China
| | - Wenhua Zhang
- Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, School of Materials and Energy, Yunnan University, Kunming, Yunnan, 650000, China
| | - Yuelong Huang
- Institute of Photovoltaic, Southwest Petroleum University, Chengdu, Sichuan, 610500, China
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Xie J, Wang B, Luo W, Li C, Jia X. Upregulation of KIF18B facilitates malignant phenotype of esophageal squamous cell carcinoma by activating CDCA8/mTORC1 pathway. J Clin Lab Anal 2022; 36:e24633. [PMID: 36085568 PMCID: PMC9550975 DOI: 10.1002/jcla.24633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/29/2022] [Accepted: 07/09/2022] [Indexed: 12/24/2022] Open
Abstract
Background Kinesin family member 18B (KIF18B) has been regarded as an oncogene that is abnormally overexpressed in some cancers, but its mechanism in esophageal squamous cell carcinoma (ESCC) remains unclear, which is thereby investigated in this study. Methods Bioinformatics analysis was performed to analyze the expression of KIF18B in esophageal carcinoma (ESCA). Quantitative real‐time polymerase chain reaction (qRT‐PCR) was used to detect KIF18B expression in ESCC cells. After KIF18B overexpression or cell division cycle associated 8 (CDCA8) deficiency, ESCC cells were subjected to determination of qRT‐PCR, Western blot, cell counting kit‐8 assay, flow cytometry, wound healing, and Transwell assay. The mechanism of KIF18B in the mechanistic target of rapamycin complex 1 (mTORC1) pathway was detected by Western blot. Results KIF18B was overexpressed in ESCA samples and ESCC cells. Upregulation of KIF18B enhanced the viability, accelerated cell cycle by elevating CDK4 and Cyclin D3 levels as well as promoted the migration and invasion by decreasing E‐cadherin level and increasing Vimentin and N‐cadherin levels in ESCC cells, which was counteracted by CDCA8 silencing. The expression of CDCA8 in ESCC cells was upregulated by KIF18B overexpression. KIF18B overexpression activated the mTORC1 pathway by upregulating phosphorylated (p)‐/p70S6K and p‐/mTOR levels in the ESCC cells, which was reversed by CDCA8 silencing. Conclusion KIF18B overexpression promotes the proliferation, migration, and invasion of ESCC cells via CDCA8‐mediated mTORC1 signaling pathway in vitro.
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Affiliation(s)
- Jiangliu Xie
- Gastroenterology Department, Yaan People's Hospital, Ya'an, China
| | - Bo Wang
- Gastroenterology Department, Yaan People's Hospital, Ya'an, China
| | - Wenjie Luo
- Gastroenterology Department, Yaan People's Hospital, Ya'an, China
| | - Chen Li
- Cardiology Department, Yaan People's Hospital, Ya'an, China
| | - Xunchao Jia
- Oncology Department, Yaan People's Hospital, Ya'an, China
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Hardwick SA, Hu W, Joglekar A, Fan L, Collier PG, Foord C, Balacco J, Lanjewar S, Sampson MM, Koopmans F, Prjibelski AD, Mikheenko A, Belchikov N, Jarroux J, Lucas AB, Palkovits M, Luo W, Milner TA, Ndhlovu LC, Smit AB, Trojanowski JQ, Lee VMY, Fedrigo O, Sloan SA, Tombácz D, Ross ME, Jarvis E, Boldogkői Z, Gan L, Tilgner HU. Single-nuclei isoform RNA sequencing unlocks barcoded exon connectivity in frozen brain tissue. Nat Biotechnol 2022; 40:1082-1092. [PMID: 35256815 PMCID: PMC9287170 DOI: 10.1038/s41587-022-01231-3] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 01/20/2022] [Indexed: 12/11/2022]
Abstract
Single-nuclei RNA sequencing characterizes cell types at the gene level. However, compared to single-cell approaches, many single-nuclei cDNAs are purely intronic, lack barcodes and hinder the study of isoforms. Here we present single-nuclei isoform RNA sequencing (SnISOr-Seq). Using microfluidics, PCR-based artifact removal, target enrichment and long-read sequencing, SnISOr-Seq increased barcoded, exon-spanning long reads 7.5-fold compared to naive long-read single-nuclei sequencing. We applied SnISOr-Seq to adult human frontal cortex and found that exons associated with autism exhibit coordinated and highly cell-type-specific inclusion. We found two distinct combination patterns: those distinguishing neural cell types, enriched in TSS-exon, exon-polyadenylation-site and non-adjacent exon pairs, and those with multiple configurations within one cell type, enriched in adjacent exon pairs. Finally, we observed that human-specific exons are almost as tightly coordinated as conserved exons, implying that coordination can be rapidly established during evolution. SnISOr-Seq enables cell-type-specific long-read isoform analysis in human brain and in any frozen or hard-to-dissociate sample.
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Affiliation(s)
- Simon A Hardwick
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
- Center for Neurogenetics, Weill Cornell Medicine, New York, NY, USA
| | - Wen Hu
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
- Center for Neurogenetics, Weill Cornell Medicine, New York, NY, USA
| | - Anoushka Joglekar
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
- Center for Neurogenetics, Weill Cornell Medicine, New York, NY, USA
| | - Li Fan
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
- Helen and Robert Appel Alzheimer's Disease Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Paul G Collier
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
- Center for Neurogenetics, Weill Cornell Medicine, New York, NY, USA
| | - Careen Foord
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
- Center for Neurogenetics, Weill Cornell Medicine, New York, NY, USA
| | | | - Samantha Lanjewar
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, USA
| | | | - Frank Koopmans
- Department of Molecular and Cellular Neurobiology, Center for Neurogenomics and Cognitive Research, Amsterdam Neuroscience, VU University, Amsterdam, The Netherlands
| | - Andrey D Prjibelski
- Center for Algorithmic Biotechnology, Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia
| | - Alla Mikheenko
- Center for Algorithmic Biotechnology, Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia
| | - Natan Belchikov
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
- Center for Neurogenetics, Weill Cornell Medicine, New York, NY, USA
- Physiology, Biophysics & Systems Biology Program, Weill Cornell Medicine, New York, NY, USA
| | - Julien Jarroux
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
- Center for Neurogenetics, Weill Cornell Medicine, New York, NY, USA
| | | | - Miklós Palkovits
- Human Brain Tissue Bank, Semmelweis University, Budapest, Hungary
| | - Wenjie Luo
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
- Helen and Robert Appel Alzheimer's Disease Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Teresa A Milner
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Lishomwa C Ndhlovu
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
- Department of Medicine, Division of Infectious Diseases, Weill Cornell Medicine, New York, NY, USA
| | - August B Smit
- Department of Molecular and Cellular Neurobiology, Center for Neurogenomics and Cognitive Research, Amsterdam Neuroscience, VU University, Amsterdam, The Netherlands
| | - John Q Trojanowski
- Center for Neurodegenerative Disease Research, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - Virginia M Y Lee
- Center for Neurodegenerative Disease Research, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | | | - Steven A Sloan
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, USA
| | - Dóra Tombácz
- Department of Medical Biology, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, Hungary
| | - M Elizabeth Ross
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
- Center for Neurogenetics, Weill Cornell Medicine, New York, NY, USA
| | | | - Zsolt Boldogkői
- Department of Medical Biology, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, Hungary
| | - Li Gan
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
- Helen and Robert Appel Alzheimer's Disease Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Hagen U Tilgner
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA.
- Center for Neurogenetics, Weill Cornell Medicine, New York, NY, USA.
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Santarpino G, De Feo M, Menicanti L, Corbi P, Nobre A, Scardone M, Luo W, Rajakaruna C, Nicoletti A, Atzeni F, Torella M. P371 1 YEAR OUTCOME OF BICARBON AORTIC MECHANICAL VALVE IN LOW–INR REGIMEN: RESULTS FROM SURE–AVR REGISTRY. Eur Heart J Suppl 2022. [DOI: 10.1093/eurheartj/suac012.357] [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: 11/14/2022]
Abstract
Abstract
Background
The drawback of using mechanical valve is lifelong anticoagulation use, and close monitoring is required to prevent postoperative complications, including thromboembolism and anticoagulation–related bleeding. Moderate anticoagulation after mechanical heart valve replacement has been proposed to reduce these risks. The present study aimed to evaluate the safety and feasibility of reduced oral anticoagulation after Bicarbon aortic mechanical valve replacement.
Methods
SURE–AVR is a propsective, multinational registry of patients undergoing aortic valve replacement. Between July 2018 and October 2020, among subjects undergoing AVR with Bicarbon valve in the SURE–AVR registry, 108 were assigned at discharge to low–INr regimen (international normalized ratio 1.5–2.5). Mean INr at discharge was 1.8+/–0.5 and 2.2+/–0.4 at 1 year. in–hospital and post–discharge outcomes up to 1 years were collected. The mean age was 55.5 +/–10.6 years old (range 25–82). Concomitant procedures included coronary artery bypass grafting (14.6%), mitral valve procedure (3.7%) and myectomy (1.9%). The follow–up duration averaged 1 year (361.8 +/– 258 days).
Results
No bleeding events were reported in the late follow up. The low–INR regimen did not affect the thromboembolism rates, since no stroke or transient ischemic attack were reported post–operatively at each time point. No in–hospital or late deaths were reported among the 108 subjects analyzed. In the early period (<30 days), three reinterventions occurred: two because of postoperative bleeding requiring thoracotomy and one due to pericardial effusion. In the late postoperative period two reinterventions with device explant occurred (one for non–structural valve dysfunction and one for endocarditis (1.2%).
Conclusion
The results of the SURE–AVr Registry demonstrated that the proposed Lower–INR Target is safe and feasible after Bicarbon aortic mechanical valve replacement. The low–intensity anticoagulation strategy is associated with a low risk of hemorrhagic events without any increase of thromboembolic complications.
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Affiliation(s)
- G Santarpino
- UNIVERSITÁ DEGLI STUDI MAGNA GRAECIA, CATANZARO; UNIVERSITÁ DEGLI STUDI “VANVITELLI”, NAPOLI; IRCCS SAN DONATO, MILANO; CHU POITIERS, CHU POITIERS; SANTA MARIA HOSPITAL LISBON, LISBON; AORN “DEI COLLI”, NAPOLI; XIANGYA HOSPITAL CENTRAL SOUTH UNIVERSITY, XIANGYA; BRISTOLO ROYAL INFIRMARY, BRISTOL; CITTÀ DI LECCE HOSPITAL, LECCE
| | - M De Feo
- UNIVERSITÁ DEGLI STUDI MAGNA GRAECIA, CATANZARO; UNIVERSITÁ DEGLI STUDI “VANVITELLI”, NAPOLI; IRCCS SAN DONATO, MILANO; CHU POITIERS, CHU POITIERS; SANTA MARIA HOSPITAL LISBON, LISBON; AORN “DEI COLLI”, NAPOLI; XIANGYA HOSPITAL CENTRAL SOUTH UNIVERSITY, XIANGYA; BRISTOLO ROYAL INFIRMARY, BRISTOL; CITTÀ DI LECCE HOSPITAL, LECCE
| | - L Menicanti
- UNIVERSITÁ DEGLI STUDI MAGNA GRAECIA, CATANZARO; UNIVERSITÁ DEGLI STUDI “VANVITELLI”, NAPOLI; IRCCS SAN DONATO, MILANO; CHU POITIERS, CHU POITIERS; SANTA MARIA HOSPITAL LISBON, LISBON; AORN “DEI COLLI”, NAPOLI; XIANGYA HOSPITAL CENTRAL SOUTH UNIVERSITY, XIANGYA; BRISTOLO ROYAL INFIRMARY, BRISTOL; CITTÀ DI LECCE HOSPITAL, LECCE
| | - P Corbi
- UNIVERSITÁ DEGLI STUDI MAGNA GRAECIA, CATANZARO; UNIVERSITÁ DEGLI STUDI “VANVITELLI”, NAPOLI; IRCCS SAN DONATO, MILANO; CHU POITIERS, CHU POITIERS; SANTA MARIA HOSPITAL LISBON, LISBON; AORN “DEI COLLI”, NAPOLI; XIANGYA HOSPITAL CENTRAL SOUTH UNIVERSITY, XIANGYA; BRISTOLO ROYAL INFIRMARY, BRISTOL; CITTÀ DI LECCE HOSPITAL, LECCE
| | - A Nobre
- UNIVERSITÁ DEGLI STUDI MAGNA GRAECIA, CATANZARO; UNIVERSITÁ DEGLI STUDI “VANVITELLI”, NAPOLI; IRCCS SAN DONATO, MILANO; CHU POITIERS, CHU POITIERS; SANTA MARIA HOSPITAL LISBON, LISBON; AORN “DEI COLLI”, NAPOLI; XIANGYA HOSPITAL CENTRAL SOUTH UNIVERSITY, XIANGYA; BRISTOLO ROYAL INFIRMARY, BRISTOL; CITTÀ DI LECCE HOSPITAL, LECCE
| | - M Scardone
- UNIVERSITÁ DEGLI STUDI MAGNA GRAECIA, CATANZARO; UNIVERSITÁ DEGLI STUDI “VANVITELLI”, NAPOLI; IRCCS SAN DONATO, MILANO; CHU POITIERS, CHU POITIERS; SANTA MARIA HOSPITAL LISBON, LISBON; AORN “DEI COLLI”, NAPOLI; XIANGYA HOSPITAL CENTRAL SOUTH UNIVERSITY, XIANGYA; BRISTOLO ROYAL INFIRMARY, BRISTOL; CITTÀ DI LECCE HOSPITAL, LECCE
| | - W Luo
- UNIVERSITÁ DEGLI STUDI MAGNA GRAECIA, CATANZARO; UNIVERSITÁ DEGLI STUDI “VANVITELLI”, NAPOLI; IRCCS SAN DONATO, MILANO; CHU POITIERS, CHU POITIERS; SANTA MARIA HOSPITAL LISBON, LISBON; AORN “DEI COLLI”, NAPOLI; XIANGYA HOSPITAL CENTRAL SOUTH UNIVERSITY, XIANGYA; BRISTOLO ROYAL INFIRMARY, BRISTOL; CITTÀ DI LECCE HOSPITAL, LECCE
| | - C Rajakaruna
- UNIVERSITÁ DEGLI STUDI MAGNA GRAECIA, CATANZARO; UNIVERSITÁ DEGLI STUDI “VANVITELLI”, NAPOLI; IRCCS SAN DONATO, MILANO; CHU POITIERS, CHU POITIERS; SANTA MARIA HOSPITAL LISBON, LISBON; AORN “DEI COLLI”, NAPOLI; XIANGYA HOSPITAL CENTRAL SOUTH UNIVERSITY, XIANGYA; BRISTOLO ROYAL INFIRMARY, BRISTOL; CITTÀ DI LECCE HOSPITAL, LECCE
| | - A Nicoletti
- UNIVERSITÁ DEGLI STUDI MAGNA GRAECIA, CATANZARO; UNIVERSITÁ DEGLI STUDI “VANVITELLI”, NAPOLI; IRCCS SAN DONATO, MILANO; CHU POITIERS, CHU POITIERS; SANTA MARIA HOSPITAL LISBON, LISBON; AORN “DEI COLLI”, NAPOLI; XIANGYA HOSPITAL CENTRAL SOUTH UNIVERSITY, XIANGYA; BRISTOLO ROYAL INFIRMARY, BRISTOL; CITTÀ DI LECCE HOSPITAL, LECCE
| | - F Atzeni
- UNIVERSITÁ DEGLI STUDI MAGNA GRAECIA, CATANZARO; UNIVERSITÁ DEGLI STUDI “VANVITELLI”, NAPOLI; IRCCS SAN DONATO, MILANO; CHU POITIERS, CHU POITIERS; SANTA MARIA HOSPITAL LISBON, LISBON; AORN “DEI COLLI”, NAPOLI; XIANGYA HOSPITAL CENTRAL SOUTH UNIVERSITY, XIANGYA; BRISTOLO ROYAL INFIRMARY, BRISTOL; CITTÀ DI LECCE HOSPITAL, LECCE
| | - M Torella
- UNIVERSITÁ DEGLI STUDI MAGNA GRAECIA, CATANZARO; UNIVERSITÁ DEGLI STUDI “VANVITELLI”, NAPOLI; IRCCS SAN DONATO, MILANO; CHU POITIERS, CHU POITIERS; SANTA MARIA HOSPITAL LISBON, LISBON; AORN “DEI COLLI”, NAPOLI; XIANGYA HOSPITAL CENTRAL SOUTH UNIVERSITY, XIANGYA; BRISTOLO ROYAL INFIRMARY, BRISTOL; CITTÀ DI LECCE HOSPITAL, LECCE
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Chen Q, Zhou X, Zhang X, Luo W, Yang S, Ge Y, Cai D, Nie H, Yang Z. Pd/PdO Electrocatalysts Boost Their Intrinsic Nitrogen Reduction Reaction Activity and Selectivity via Controllably Modulating the Oxygen Level. ACS Appl Mater Interfaces 2022; 14:20988-20996. [PMID: 35485647 DOI: 10.1021/acsami.2c02329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The electrocatalytic nitrogen reduction reaction (eNRR) is regarded as promising sustainable ammonia (NH3) production alternative to the industrial Haber-Bosch process. However, the current electrocatalytic systems still exhibit a grand challenge to simultaneously boost their eNRR activity and selectivity under ambient conditions. Herein, we construct Pd/PdO electrocatalysts with a controlled oxygen level by a facile electrochemical deposition approach at different gas atmospheres. Theoretical calculation results indicate that the introduction of an oxygen atom into a pure Pd catalyst would modulate the electron density of the Pd/PdO heterojunction and thus influence the adsorption energy for nitrogen and hydrogen. The calculation results and experiments show that the Pd/PdO heterojunction with a moderate oxygen level (O-M) exhibits optimal eNRR performance with a high NH3 yield of 11.0 μg h-1 mgcat-1 and a large Faraday efficiency (FE) of 22.2% at 0.03 V (vs RHE) in a 0.1 M KOH electrolyte. The moderate affinity of Pd to N in the Pd/PdO heterojunction and the inhibition of the hydrogen evolution reaction (HER) can facilitate the breaking of the triple bond of N2 and promote the protonation of N, which is confirmed by ex situ X-ray photoelectron spectroscopy (XPS) and in situ Raman spectroscopy. In situ Fourier transform infrared spectroscopy (FTIR) and density functional theory (DFT) calculations further disclose that the O-M catalysts prefer the distal association pathway during the eNRR process. This work opens a new way to construct heterostructures by controlling the oxygen level in other electrochemical fields.
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Affiliation(s)
- Qianqian Chen
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Xuemei Zhou
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Xiaodong Zhang
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Wenjie Luo
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Shuo Yang
- College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou 325035, China
| | - Yongjie Ge
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Dong Cai
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Huagui Nie
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Zhi Yang
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
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Luo W, Gardenswartz A, Chu Y, Rosenblum J, Ayello J, Marcondes M, Overwijk W, Cripe T, Cassady K, Lee D, Cairo M. Immunotherapy: TARGETING EWING SARCOMA (ES), OSTEOSARCOMA (OS) AND NEUROBLASTOMA (NB) WITH ANTI-MCAM CHIMERIC ANTIGEN RECEPTOR (CAR) MODIFIED NATURAL KILLER (NK) CELLS. Cytotherapy 2022. [DOI: 10.1016/s1465-3249(22)00301-2] [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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Tracy TE, Madero-Pérez J, Swaney DL, Chang TS, Moritz M, Konrad C, Ward ME, Stevenson E, Hüttenhain R, Kauwe G, Mercedes M, Sweetland-Martin L, Chen X, Mok SA, Wong MY, Telpoukhovskaia M, Min SW, Wang C, Sohn PD, Martin J, Zhou Y, Luo W, Trojanowski JQ, Lee VMY, Gong S, Manfredi G, Coppola G, Krogan NJ, Geschwind DH, Gan L. Tau interactome maps synaptic and mitochondrial processes associated with neurodegeneration. Cell 2022; 185:712-728.e14. [PMID: 35063084 PMCID: PMC8857049 DOI: 10.1016/j.cell.2021.12.041] [Citation(s) in RCA: 83] [Impact Index Per Article: 41.5] [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: 06/11/2021] [Revised: 10/20/2021] [Accepted: 12/22/2021] [Indexed: 12/21/2022]
Abstract
Tau (MAPT) drives neuronal dysfunction in Alzheimer disease (AD) and other tauopathies. To dissect the underlying mechanisms, we combined an engineered ascorbic acid peroxidase (APEX) approach with quantitative affinity purification mass spectrometry (AP-MS) followed by proximity ligation assay (PLA) to characterize Tau interactomes modified by neuronal activity and mutations that cause frontotemporal dementia (FTD) in human induced pluripotent stem cell (iPSC)-derived neurons. We established interactions of Tau with presynaptic vesicle proteins during activity-dependent Tau secretion and mapped the Tau-binding sites to the cytosolic domains of integral synaptic vesicle proteins. We showed that FTD mutations impair bioenergetics and markedly diminished Tau’s interaction with mitochondria proteins, which were downregulated in AD brains of multiple cohorts and correlated with disease severity. These multimodal and dynamic Tau interactomes with exquisite spatial resolution shed light on Tau’s role in neuronal function and disease and highlight potential therapeutic targets to block Tau-mediated pathogenesis. By combining APEX and AP-MS proteomic approaches, Tau interactome mapping reveals that Tau interactors are modified by neuronal activity and FTD mutations in human iPSC-derived neurons.
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Affiliation(s)
- Tara E Tracy
- Gladstone Institutes, San Francisco, CA 94158, USA; Buck Institute for Research on Aging, Novato, CA 94945, USA.
| | - Jesus Madero-Pérez
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA.
| | - Danielle L Swaney
- Gladstone Institutes, San Francisco, CA 94158, USA; Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94158, USA; Quantitative Biosciences Institute (QBI), University of California, San Francisco, San Francisco, CA 94158, USA.
| | - Timothy S Chang
- Department of Neurology, Movement Disorders Program and Program in Neurogenetics, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Michelle Moritz
- Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94158, USA
| | - Csaba Konrad
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10065, USA
| | | | - Erica Stevenson
- Gladstone Institutes, San Francisco, CA 94158, USA; Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94158, USA; Quantitative Biosciences Institute (QBI), University of California, San Francisco, San Francisco, CA 94158, USA
| | - Ruth Hüttenhain
- Gladstone Institutes, San Francisco, CA 94158, USA; Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94158, USA; Quantitative Biosciences Institute (QBI), University of California, San Francisco, San Francisco, CA 94158, USA
| | - Grant Kauwe
- Buck Institute for Research on Aging, Novato, CA 94945, USA
| | - Maria Mercedes
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Lauren Sweetland-Martin
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Xu Chen
- Gladstone Institutes, San Francisco, CA 94158, USA
| | - Sue-Ann Mok
- Department of Biochemistry, University of Alberta, Edmonton, AB T6G 2R3, Canada
| | - Man Ying Wong
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | | | - Sang-Won Min
- Gladstone Institutes, San Francisco, CA 94158, USA
| | - Chao Wang
- Gladstone Institutes, San Francisco, CA 94158, USA
| | | | | | - Yungui Zhou
- Gladstone Institutes, San Francisco, CA 94158, USA
| | - Wenjie Luo
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - John Q Trojanowski
- Center for Neurodegenerative Disease Research, School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Virginia M Y Lee
- Center for Neurodegenerative Disease Research, School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Shiaoching Gong
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Giovanni Manfredi
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10065, USA
| | - Giovanni Coppola
- Department of Neurology, Movement Disorders Program and Program in Neurogenetics, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; Department of Psychiatry, Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, CA 90095, USA
| | - Nevan J Krogan
- Gladstone Institutes, San Francisco, CA 94158, USA; Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94158, USA; Quantitative Biosciences Institute (QBI), University of California, San Francisco, San Francisco, CA 94158, USA
| | - Daniel H Geschwind
- Department of Neurology, Movement Disorders Program and Program in Neurogenetics, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA; Institute of Precision Health, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Li Gan
- Helen and Robert Appel Alzheimer Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA.
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Sun XY, Luo W, Lan HY, Song YM, Gao QY, Zhu ZC, Chen JG, Cai XZ. Transmutation of long-lived fission products in an advanced nuclear energy system. Sci Rep 2022; 12:2240. [PMID: 35140312 PMCID: PMC8828891 DOI: 10.1038/s41598-022-06344-y] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 01/13/2022] [Indexed: 11/12/2022] Open
Abstract
Disposal of long-lived fission products (LLFPs) produced in reactors has been paid a lot attention for sustainable and clean nuclear energy. Although a few transmutation means have been proposed to address this issue, there are still scientific and/or engineering challenges to achieve efficient transmutation of LLFPs. In this study, we propose a novel concept of advanced nuclear energy system (ANES) for transmuting LLFPs efficiently without isotopic separation. The ANES comprises intense photoneutron source (PNS) and subcritical reactor, which consist of lead–bismuth (Pb-Bi) layer, beryllium (Be) layer, and fuel, LLFPs and shield assemblies. The PNS is produced by bombarding radioactive cesium and iodine target with a laser-Compton scattering (LCS) γ-ray beam. We investigate the effect of the ANES system layout on transmutation efficiency by Monte Carlo simulations. It is found that a proper combination of the Pb-Bi layer and the Be layer can increase the utilization efficiency of the PNS by a factor of ~ 10, which helps to decrease by almost the same factor the LCS γ-beam intensity required for driving the ANES. Supposing that the ANES operates over 20 years at a normal thermal power of 500 MWt, five LLFPs including 99Tc, 129I, 107Pd, 137Cs and 79Se could be transmuted by more than 30%. Their effective half-lives thus decrease drastically from ~ 106 to less than 102 years. It is suggested that this successful implementation of the ANES paves the avenue towards practical transmutation of LLFPs without isotopic separation.
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Affiliation(s)
- X Y Sun
- School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China
| | - W Luo
- School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China.
| | - H Y Lan
- School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China
| | - Y M Song
- School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China
| | - Q Y Gao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Z C Zhu
- School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China
| | - J G Chen
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China.
| | - X Z Cai
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
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