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Liu M, Rashid S, Wang W, Zhang H, Zhao Y, Fu X, Su Z, Graham N, Yu W. The application of chitosan quaternary ammonium salt to replace polymeric aluminum ferric chloride for sewage sludge dewatering. Water Res 2024; 256:121539. [PMID: 38583335 DOI: 10.1016/j.watres.2024.121539] [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] [Received: 02/05/2024] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/09/2024]
Abstract
Inorganic coagulants such as poly aluminum ferric chloride (Al/Fe) are applied conventionally to sewage sludge dewatering and can be retained in the sludge cake, causing its conductivity to increase and generate secondary pollution. To reduce these disadvantages, there is a need to develop alternative, more sustainable chemicals as substitutes for conventional inorganic coagulants. In the present investigation, the application of a polymeric chitosan quaternary ammonium salt (CQAS) is explored as a complete, or partial, replacement for Al/Fe in the context of sludge dewatering processes. Laboratory experiments using digested sewage sludge showed that CQAS could effectively substitute for over 80 % of the Al/Fe inorganic coagulant in the sludge dewatering process. This substitution resulted in a reduction of sludge cake conductivity by more than 50 %. Simulation of sludge dewatering curves and imaging of the sludge surface indicated that the addition of CQAS led to an increase in nanosized pores, and a decrease in the specific resistance of the sludge filter cake as the dosage of Al/Fe decreased to around 30 %. The variations of fluorescence emission, quantum yield and carboxylic and amino groups, suggested that the chelating of Al/Fe decreased due to the bridging effects of CQAS. The CQAS had different flocculation bridging effects on various EPS fractions, which varied the amount of protein chelated with Al/Fe in each fraction. This study provides new information about the benefits of replacing conventional inorganic coagulants with natural organic polymers for sewage sludge dewatering, in terms of reduced sludge cake conductivity and greater dry solids content.
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Affiliation(s)
- Minmin Liu
- Key Laboratory of Drinking Water Science and Technology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Sajid Rashid
- Key Laboratory of Drinking Water Science and Technology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Wei Wang
- Engineering Technology Research Center for Municipal Wastewater Reclamation, R&D Center, Beijing Drainage Group Co., Ltd., Beijing 100124, China
| | - Huihui Zhang
- Engineering Technology Research Center for Municipal Wastewater Reclamation, R&D Center, Beijing Drainage Group Co., Ltd., Beijing 100124, China
| | - Yawei Zhao
- Engineering Technology Research Center for Municipal Wastewater Reclamation, R&D Center, Beijing Drainage Group Co., Ltd., Beijing 100124, China
| | - Xingmin Fu
- Engineering Technology Research Center for Municipal Wastewater Reclamation, R&D Center, Beijing Drainage Group Co., Ltd., Beijing 100124, China
| | - Zhaoyang Su
- Key Laboratory of Drinking Water Science and Technology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Nigel Graham
- Department of Civil and Environmental Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Wenzheng Yu
- Key Laboratory of Drinking Water Science and Technology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
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Chen Q, Fu X, Wang J, Zhao Y, Wang W, Ghaffar Memon A, Zhang H, Wen Y. Characteristics of advanced anaerobic digestion sludge-based biochar and its application for sewage sludge conditioning. Bioresour Technol 2024; 402:130833. [PMID: 38740310 DOI: 10.1016/j.biortech.2024.130833] [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] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 05/09/2024] [Accepted: 05/10/2024] [Indexed: 05/16/2024]
Abstract
The utilization of sludge-based biochar, characterized by abundant pore structures, proves advantageous in enhancing sludge dewatering performance. In this study, advanced anaerobic digestion sludge underwent pyrolysis to produce biochar, subsequently employed for sludge conditioning. Results revealed that biochar, obtained at 800 °C, exhibited the highest specific surface area (105.3 m2/g) and pore volume (0.17 cm3/g). As the pyrolysis temperature increased, the sludge's functional groups tended to aromatize. When used to condition sludge, particularly at a 20 % (dry solid) dosage, biochar significantly reduced sludge capillary suction time and floc size. The addition of biochar enhanced the conditioning effect of cationic polyacrylamide by absorbing extracellular polymeric substances, creating water molecule channels, and forming skeletons for sludge flocs. These findings introduce a novel approach to sludge reuse and provide valuable data supporting the use of biochar as a sludge conditioner.
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Affiliation(s)
- Qian Chen
- Engineering Technology Research Center for Municipal Wastewater Reclamation, Beijing Drainage Group Co. Ltd., Beijing 100124, China
| | - Xingmin Fu
- Engineering Technology Research Center for Municipal Wastewater Reclamation, Beijing Drainage Group Co. Ltd., Beijing 100124, China
| | - Jiawei Wang
- Engineering Technology Research Center for Municipal Wastewater Reclamation, Beijing Drainage Group Co. Ltd., Beijing 100124, China.
| | - Yawei Zhao
- Engineering Technology Research Center for Municipal Wastewater Reclamation, Beijing Drainage Group Co. Ltd., Beijing 100124, China
| | - Wei Wang
- Engineering Technology Research Center for Municipal Wastewater Reclamation, Beijing Drainage Group Co. Ltd., Beijing 100124, China
| | - Abdul Ghaffar Memon
- Center for Sensor Technology of Environment and Health, State Key Joint Laboratory of ESPC, School of Environment, Tsinghua University, Beijing 100084, China; Department of Environmental Engineering, NED University of Engineering and Technology, Karachi 75270, Pakistan
| | - Huihui Zhang
- Engineering Technology Research Center for Municipal Wastewater Reclamation, Beijing Drainage Group Co. Ltd., Beijing 100124, China
| | - Yang Wen
- Engineering Technology Research Center for Municipal Wastewater Reclamation, Beijing Drainage Group Co. Ltd., Beijing 100124, China
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Miao K, Zhao Y, Xue N. Gkongensin A, an HSP90β inhibitor, improves hyperlipidemia, hepatic steatosis, and insulin resistance. Heliyon 2024; 10:e29367. [PMID: 38655315 PMCID: PMC11036013 DOI: 10.1016/j.heliyon.2024.e29367] [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: 07/03/2023] [Revised: 03/29/2024] [Accepted: 04/07/2024] [Indexed: 04/26/2024] Open
Abstract
The prevalence of obesity and its primary associated comorbidities, such as type 2 diabetes and fatty liver disease, has reached epidemic proportions, with no successful treatment available at present. Heat shock protein 90 (HSP90), a crucial chaperone, plays a key role in de novo lipogenesis (DNL) by stabilizing and maintaining sterol regulatory element binding protein (SREBP) activity. Kongensin A (KA), derived from Croton kongensis, inhibits RIP3-mediated necrosis, showing promise as an anti-necrotic and anti-inflammatory agent. It is not yet clear if KA, acting as an HSP90 inhibitor, can enhance hyperlipidemia, hepatic steatosis, and insulin resistance in obese individuals by controlling lipid metabolism. In this study, we first found that KA can potentially decrease lipid content at the cellular level. C57BL/6J mice were given a high-fat diet (HFD) and received KA and lovastatin through oral administration for 7 weeks. KA improved hyperlipidemia, fatty liver, and insulin resistance, as well as reduced body weight in diet-induced obese (DIO) mice, with no significant alteration in food intake. In vitro, KA suppressed DNL and reduced the amounts of mSREBPs. KA promoted mSREBP degradation via the FBW7-mediated ubiquitin-proteasome pathway. KA decreased the level of p-Akt Ser308, and p-GSK3β Ser9 by inhibiting the interaction between HSP90β and Akt. Overall, KA enhanced hyperlipidemia, hepatic steatosis, and insulin resistance by blocking SREBP activity, thereby impacting the FBW7-controlled ubiquitin-proteasome pathway.
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Affiliation(s)
- Kun Miao
- Department of Hand Surgery, Fuzhou Second General Hospital, 350007, Fuzhou, Fujian, China
| | - Yawei Zhao
- Department of Pharmacy, Jurong Hospital Affiliated to Jiangsu University, Jurong, 212400, Jiangsu, China
| | - Ning Xue
- Department of Acupuncture, Jurong Hospital Affiliated to Jiangsu University, Jurong, 212400, Jiangsu, China
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Han D, Labaf M, Zhao Y, Owiredu J, Zhang S, Patel K, Venkataramani K, Steinfeld JS, Han W, Li M, Liu M, Wang Z, Besschetnova A, Patalano S, Mulhearn MJ, Macoska JA, Yuan X, Balk SP, Nelson PS, Plymate SR, Gao S, Siegfried KR, Liu R, Stangis MM, Foxa G, Czernik PJ, Williams BO, Zarringhalam K, Li X, Cai C. Androgen receptor splice variants drive castration-resistant prostate cancer metastasis by activating distinct transcriptional programs. J Clin Invest 2024:e168649. [PMID: 38687617 DOI: 10.1172/jci168649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024] Open
Abstract
One critical mechanism through which prostate cancer (PCa) adapts to treatments targeting androgen receptor (AR) signaling is the emergence of ligand-binding domain-truncated and constitutively active AR splice variants, particularly AR-V7. While AR-V7 has been intensively studied, its ability to activate distinct biological functions compared to the full-length AR (AR-FL), and its role in regulating the metastatic progression of castration-resistant PCa (CRPC), remains unclear. Our study found that, under castrated conditions, AR-V7 strongly induced osteoblastic bone lesions, a response not observed with AR-FL overexpression. Through combined ChIP-seq, ATAC-seq, and RNA-seq analyses, we demonstrated that AR-V7 uniquely accesses the androgen-responsive elements in compact chromatin regions, activating a distinct transcription program. This program was highly enriched for genes involved in epithelial-mesenchymal transition and metastasis. Notably, we discovered that SOX9, a critical metastasis driver gene, was a direct target and downstream effector of AR-V7. Its protein expression was dramatically upregulated in AR-V7-induced bone lesions. Moreover, we found that Ser81 phosphorylation enhanced AR-V7's pro-metastasis function by selectively altering its specific transcription program. Blocking this phosphorylation with CDK9 inhibitors impaired the AR-V7-mediated metastasis program. Overall, our study has provided molecular insights into the role of AR splice variants in driving the metastatic progression of CRPC.
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Affiliation(s)
- Dong Han
- Center for Personalized Cancer Therapy, University of Massachusetts Boston, Boston, United States of America
| | - Maryam Labaf
- Center for Personalized Cancer Therapy, University of Massachusetts Boston, Boston, United States of America
| | - Yawei Zhao
- Cell and Cancer Biology, The University of Toledo, Toledo, United States of America
| | - Jude Owiredu
- Cell and Developmental Biology, Weill Cornell Medical College, New York, United States of America
| | - Songqi Zhang
- Center for Personalized Cancer Therapy, University of Massachusetts Boston, Boston, United States of America
| | - Krishna Patel
- Center for Personalized Cancer Therapy, University of Massachusetts Boston, Boston, United States of America
| | | | - Jocelyn S Steinfeld
- Biology, University of Massachusetts Boston, Boston, United States of America
| | - Wanting Han
- Human Biology Division, Fred Hutchinson Cancer Center, Seattle, United States of America
| | - Muqing Li
- Center for Personalized Cancer Therapy, University of Massachusetts Boston, Boston, United States of America
| | - Mingyu Liu
- Center for Personalized Cancer Therapy, University of Massachusetts Boston, Boston, United States of America
| | - Zifeng Wang
- Center for Personalized Cancer Therapy, University of Massachusetts Boston, Boston, United States of America
| | - Anna Besschetnova
- Center for Personalized Cancer Therapy, University of Massachusetts Boston, Boston, United States of America
| | - Susan Patalano
- Center for Personalized Cancer Therapy, University of Massachusetts Boston, Boston, United States of America
| | - Michaela J Mulhearn
- Center for Personalized Cancer Therapy, University of Massachusetts Boston, Boston, United States of America
| | - Jill A Macoska
- Center for Personalized Cancer Therapy, University of Massachusetts Boston, Boston, United States of America
| | - Xin Yuan
- Hematology-Oncology Division, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, United States of America
| | - Steven P Balk
- Hematology-Oncology Division, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, United States of America
| | - Peter S Nelson
- Human Biology Division, Fred Hutchinson Cancer Center, Seattle, United States of America
| | - Stephen R Plymate
- Medicine, University of Washington, Seattle, United States of America
| | - Shuai Gao
- Cell Biology and Anatomy, New York Medical College, Valhalla, United States of America
| | - Kellee R Siegfried
- Biology, University of Massachusetts Boston, Boston, United States of America
| | - Ruihua Liu
- Cell and Cancer Biology, The University of Toledo, Toledo, United States of America
| | - Mary M Stangis
- Cell and Cancer Biology, The University of Toledo, Toledo, United States of America
| | - Gabrielle Foxa
- Cell Biology, Van Andel Institute Core Technologies and Services, Grand Rapids, United States of America
| | - Piotr J Czernik
- Orthopaedic Surgery, University of Toledo, Toledo, United States of America
| | - Bart O Williams
- Cell Biology, Van Andel Institute Core Technologies and Services, Grand Rapids, United States of America
| | - Kourosh Zarringhalam
- Center for Personalized Cancer Therapy, University of Massachusetts Boston, Boston, United States of America
| | - Xiaohong Li
- Cell and Cancer Biology, University of Toledo, Toledo, United States of America
| | - Changmeng Cai
- Center of Personalized Cancer Therapy, University of Massachusetts Boston, Boston, United States of America
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Liu M, Liang K, Zhao Y, Tu W, Zhou S, Gan X, Liu X, He K. Self-Supervised Temporal Graph Learning With Temporal and Structural Intensity Alignment. IEEE Trans Neural Netw Learn Syst 2024; PP:1-13. [PMID: 38648135 DOI: 10.1109/tnnls.2024.3386168] [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: 04/25/2024]
Abstract
Temporal graph learning aims to generate high-quality representations for graph-based tasks with dynamic information, which has recently garnered increasing attention. In contrast to static graphs, temporal graphs are typically organized as node interaction sequences over continuous time rather than an adjacency matrix. Most temporal graph learning methods model current interactions by incorporating historical neighborhood. However, such methods only consider first-order temporal information while disregarding crucial high-order structural information, resulting in suboptimal performance. To address this issue, we propose a self-supervised method called S2T for temporal graph learning, which extracts both temporal and structural information to learn more informative node representations. Notably, the initial node representations combine first-order temporal and high-order structural information differently to calculate two conditional intensities. An alignment loss is then introduced to optimize the node representations, narrowing the gap between the two intensities and making them more informative. Concretely, in addition to modeling temporal information using historical neighbor sequences, we further consider structural knowledge at both local and global levels. At the local level, we generate structural intensity by aggregating features from high-order neighbor sequences. At the global level, a global representation is generated based on all nodes to adjust the structural intensity according to the active statuses on different nodes. Extensive experiments demonstrate that the proposed model S2T achieves at most 10.13% performance improvement compared with the state-of-the-art competitors on several datasets.
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Liu R, Zhao Y, Su S, Kwabil A, Njoku PC, Yu H, Li X. Unveiling cancer dormancy: Intrinsic mechanisms and extrinsic forces. Cancer Lett 2024; 591:216899. [PMID: 38649107 DOI: 10.1016/j.canlet.2024.216899] [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: 03/19/2024] [Revised: 04/06/2024] [Accepted: 04/12/2024] [Indexed: 04/25/2024]
Abstract
Tumor cells disseminate in various distant organs at early stages of cancer progression. These disseminated tumor cells (DTCs) can stay dormant/quiescent without causing patient symptoms for years or decades. These dormant tumor cells survive despite curative treatments by entering growth arrest, escaping immune surveillance, and/or developing drug resistance. However, these dormant cells can reactivate to proliferate, causing metastatic progression and/or relapse, posing a threat to patients' survival. It's unclear how cancer cells maintain dormancy and what triggers their reactivation. What are better approaches to prevent metastatic progression and relapse through harnessing cancer dormancy? To answer these remaining questions, we reviewed the studies of tumor dormancy and reactivation in various types of cancer using different model systems, including the brief history of dormancy studies, the intrinsic characteristics of dormant cells, and the external cues at the cellular and molecular levels. Furthermore, we discussed future directions in the field and the strategies for manipulating dormancy to prevent metastatic progression and recurrence.
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Affiliation(s)
- Ruihua Liu
- School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia Autonomous Region, 010070, China; Department of Cell and Cancer Biology, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH, 43614, USA
| | - Yawei Zhao
- Department of Cell and Cancer Biology, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH, 43614, USA
| | - Shang Su
- Department of Cell and Cancer Biology, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH, 43614, USA
| | - Augustine Kwabil
- Department of Cell and Cancer Biology, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH, 43614, USA
| | - Prisca Chinonso Njoku
- Department of Cell and Cancer Biology, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH, 43614, USA
| | - Haiquan Yu
- School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia Autonomous Region, 010070, China.
| | - Xiaohong Li
- Department of Cell and Cancer Biology, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH, 43614, USA.
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Zhang HR, Li CK, Du Y, Zhao YW, Li ZQ, Yang Y, Wu N, Zhuang QY, Zhang JG, Wang SR. [Clinical outcome of posterior lumbar interbody fusion combined with Ponte osteotomy for reconstruction of coronal sagittal plane balance in degenerative scoliosis]. Zhonghua Yi Xue Za Zhi 2024; 104:1043-1049. [PMID: 38561299 DOI: 10.3760/cma.j.cn112137-20231015-00753] [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: 04/04/2024]
Abstract
Objective: To evaluate the clinical efficacy of posterior lumbar interbody fusion combined with Ponte osteotomy in the treatment of patients with degenerative scoliosis. Methods: The medical records and imaging data of degenerative scoliosis in department of orthopedics, Peking Union Medical College Hospital from 2013 to 2022 were retrospectively collected, and the shortest follow-up time was 1 year. A total of 38 patients were included, including 13 males and 25 females, aged 50-87(65.6±10.9) years old.The follow-up was12-119(43±20) months. Standing position full spine anteroposterior lateral X-ray examinations were performed on all patients preoperatively, postoperatively, and at latest follow-up. The length of hospital stay, complications, operation time, blood loss, instrumented segment, fusion segmen were recorded. The clinical scores and coronasagittal imaging indicators at three time points were compared. Results: The operation time was (274.5±70.5)min, and intraoperative blood loss was (619.2±93.5)ml. The coronal vertical axis was improved from (2.9±1.8)cm preoperatively to (1.2±1.0)cm postoperatively. The preoperative coronal Cobb angle was 16.6°±9.9° and the immediate postoperative correction was 6.4°±4.0°(t=-6.83, P<0.001). The difference was statistically significant (t=-6.12, P<0.001). The coronal Cobb Angle at the last follow-up was 5.7°±3.7°, and there was no significant orthopaedic loss at the last follow-up (t=-6.12, P<0.001).The sagittal vertical axis decreased from (5.6±3.9)cm preoperatively to (3.2±2.5) cm immediately after operation (t=-6.83,P<0.001), and was well maintained at the last follow-up[(2.7±1.8) cm,t=-7.77,P<0.001]. Lumbar lordosis increased from 21.8°±10.2° preoperatively to 35.8°±8.3° postoperatively(t=12.01, P<0.001)and 40.1°±8.6° at last follow-up(t=-10.21, P<0.001). Oswestry disability score (ODI score), visual analogue score (VAS) low back pain score and VAS leg pain score were also lower after surgery than before surgery (all P<0.05). Conclusion: Posterior lumbar interbody fusion combined with Ponte osteotomy can significantly improve the coronal and sagittal plane deformity and postoperative functional score in adult patients with degenerative scoliosis.
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Affiliation(s)
- H R Zhang
- Department of Orthopedics, Peking Union Medical College Hospital, Beijing 100730, China
| | - C K Li
- Department of Orthopedics, Peking Union Medical College Hospital, Beijing 100730, China
| | - Y Du
- Department of Orthopedics, Peking Union Medical College Hospital, Beijing 100730, China
| | - Y W Zhao
- Department of Orthopedics, Peking Union Medical College Hospital, Beijing 100730, China
| | - Z Q Li
- Department of Orthopedics, Peking Union Medical College Hospital, Beijing 100730, China
| | - Y Yang
- Department of Orthopedics, Peking Union Medical College Hospital, Beijing 100730, China
| | - N Wu
- Department of Orthopedics, Peking Union Medical College Hospital, Beijing 100730, China
| | - Q Y Zhuang
- Department of Orthopedics, Peking Union Medical College Hospital, Beijing 100730, China
| | - J G Zhang
- Department of Orthopedics, Peking Union Medical College Hospital, Beijing 100730, China
| | - S R Wang
- Department of Orthopedics, Peking Union Medical College Hospital, Beijing 100730, China
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Lin C, Zhu Z, Zhao Y, Zhang Y, He K, Zhao Y. SGT++: Improved Scene Graph-Guided Transformer for Surgical Report Generation. IEEE Trans Med Imaging 2024; 43:1337-1346. [PMID: 38015688 DOI: 10.1109/tmi.2023.3335909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
Automatically recording surgical procedures and generating surgical reports are crucial for alleviating surgeons' workload and enabling them to concentrate more on the operations. Despite some achievements, there still exist several issues for the previous works: 1) failure to model the interactive relationship between surgical instruments and tissue; and 2) neglect of fine-grained differences within different surgical images in the same surgery. To address these two issues, we propose an improved scene graph-guided Transformer, also named by SGT++, to generate more accurate surgical report, in which the complex interactions between surgical instruments and tissue are learnt from both explicit and implicit perspectives. Specifically, to facilitate the understanding of the surgical scene graph under a graph learning framework, a simple yet effective approach is proposed for homogenizing the input heterogeneous scene graph. For the homogeneous scene graph that contains explicit structured and fine-grained semantic relationships, we design an attention-induced graph transformer for node aggregation via an explicit relation-aware encoder. In addition, to characterize the implicit relationships about the instrument, tissue, and the interaction between them, the implicit relational attention is proposed to take full advantage of the prior knowledge from the interactional prototype memory. With the learnt explicit and implicit relation-aware representations, they are then coalesced to obtain the fused relation-aware representations contributing to generating reports. Some comprehensive experiments on two surgical datasets show that the proposed STG++ model achieves state-of-the-art results.
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Fan PH, Liu QY, Zhao YW, Kong LF. [Pathological features and diagnostic process of common benign hemangioma]. Zhonghua Bing Li Xue Za Zhi 2024; 53:311-316. [PMID: 38433062 DOI: 10.3760/cma.j.cn112151-20231026-00311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Affiliation(s)
- P H Fan
- Department of Pathology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - Q Y Liu
- Department of Pathology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - Y W Zhao
- Department of Pathology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - L F Kong
- Department of Pathology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
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10
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Xue S, Liu QY, Gou XN, Zhao YW, Cheng Q, Kong LF. [Well-differentiated/dedifferentiated liposarcoma associated with myxoid-like morphology: a clinicopathological and molecular genetic characteristics analysis of 34 cases]. Zhonghua Bing Li Xue Za Zhi 2024; 53:168-173. [PMID: 38281785 DOI: 10.3760/cma.j.cn112151-20231025-00302] [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: 01/30/2024]
Abstract
Objective: To investigate the clinicopathological and molecular genetic characteristics of well-differentiated/dedifferentiated liposarcoma (WDLPS/DDLPS) with myxoid-like morphology, and to distinguish them from myxofibrosarcoma (MFS) with similar morphology. Methods: Twenty-nine cases of myxoid-like liposarcoma and 5 cases of MFS were collected from Henan Provincial People's Hospital, Zhengzhou, China and the First Medical Center of PLA General Hospital, Beijing, China from January 2015 to March 2023. Relevant markers were detected using immunohistochemistry and fluorescence in situ hybridization (FISH). The literature was also reviewed. Results: There were 24 males and 10 females, with ages ranging from 41 to 73 years. The tumor sites included retroperitoneum (n=17), abdomen (n=9), lower limbs (n=5), scrotum (n=1), upper limb (n=1) and axilla (n=1). WDLPS was commonly seen as lipomatoid type (12 cases), while the dedifferentiated components of DDLPS included low-grade (13 cases) and high-grade (2 cases) morphology, with low-high grade myxofibrosarcoma, dermatofibrosarcoma protuberans, and low-grade fibrosarcoma structures. Twenty-nine liposarcomas had various proportions of myxoid-like morphology, while 16 showed various degrees of tumor necrosis. The myxoid-like component showed myxoid pleomorphic liposarcoma (MLPS)-like morphology, lobulated growth, characteristic slender, ramified capillary network,"chicken claw-like"morphology, mucus-rich stroma and lung edema-like morphology. Tumor cells were spindle and oval, with many variable vacuolar lipoblasts. MDM2 gene amplification was detected using FISH and present in all tested cases (29/29). DDIT3 break-apart mutation was not detected, but its cluster amplification was present (24/29). Among the MFS cases, one showed cluster amplification (1/5), but no cases showed break-apart or amplification of MDM2 gene. Conclusions: WDLPS/DDLPS with myxoid-like morphology is most commonly seen in the retroperitoneum and abdominal cavity and mostly harbors DDIT3 break-apart probe amplification, while this amplification is not specific to liposarcoma. For core biopsy specimens or very rare tumors in the limbs, when histology has mucinous stroma and MLPS-like morphology, misdiagnosis of MLPS or other non-lipomatous neoplasms with myxoid morphology should be avoided.
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Affiliation(s)
- S Xue
- Department of Pathology, Henan Provincial People's Hospital, the People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - Q Y Liu
- Department of Pathology, Henan Provincial People's Hospital, the People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - X N Gou
- Department of Pathology, the First Medical Center of People's Liberation Army General Hospital, Beijing 100853, China
| | - Y W Zhao
- Department of Pathology, Henan Provincial People's Hospital, the People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - Q Cheng
- Department of Pathology, Henan Provincial People's Hospital, the People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - L F Kong
- Department of Pathology, Henan Provincial People's Hospital, the People's Hospital of Zhengzhou University, Zhengzhou 450003, China
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He L, Yuan SZ, Mao XD, Zhao YW, He QH, Zhang Y, Su JZ, Wu LL, Yu GY, Cong X. Claudin-10 Decrease in the Submandibular Gland Contributes to Xerostomia. J Dent Res 2024; 103:167-176. [PMID: 38058154 DOI: 10.1177/00220345231210547] [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: 12/08/2023] Open
Abstract
Tight junction proteins play a crucial role in paracellular transport in salivary gland epithelia. It is clear that severe xerostomia in patients with HELIX syndrome is caused by mutations in the claudin-10 gene. However, little is known about the expression pattern and role of claudin-10 in saliva secretion in physical and disease conditions. In the present study, we found that only claudin-10b transcript was expressed in human and mouse submandibular gland (SMG) tissues, and claudin-10 protein was dominantly distributed at the apicolateral membranes of acini in human, rat, and mouse SMGs. Overexpression of claudin-10 significantly reduced transepithelial electrical resistance and increased paracellular transport of dextran and Na+ in SMG-C6 cells. In C57BL/6 mice, pilocarpine stimulation promoted secretion and cation concentration in saliva in a dose-dependent increase. Assembly of claudin-10 to the most apicolateral portions in acini of SMGs was observed in the lower pilocarpine (1 mg/kg)-treated group, and this phenomenon was much obvious in the higher pilocarpine (10 mg/kg)-treated group. Furthermore, 7-, 14-, and 21-wk-old nonobese diabetic (NOD) and BALB/c mice were used to mimic the progression of hyposalivation in Sjögren syndrome. Intensity of claudin-10 protein was obviously lower in SMGs of 14- and 21-wk-old NOD mice compared with that of age-matched BALB/c mice. In the cultured mouse SMG tissues, interferon-γ (IFN-γ) downregulated claudin-10 expression. In claudin-10-overexpressed SMG-C6 cells, paracellular permeability was decreased. Furthermore, IFN-γ stimulation increased p-STAT1 level, whereas pretreatment with JAK/STAT1 antagonist significantly alleviated the IFN-γ-induced claudin-10 downregulation. These results indicate that claudin-10 functions as a pore-forming component in acinar epithelia of SMGs, assembly of claudin-10 is required for saliva secretion, and downregulation of claudin-10 induces hyposecretion. These findings may provide new clues to novel therapeutic targets on hyposalivation.
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Affiliation(s)
- L He
- Department of Physiology and Pathophysiology, Peking University School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Beijing, P. R. China
| | - S Z Yuan
- Department of Physiology and Pathophysiology, Peking University School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Beijing, P. R. China
| | - X D Mao
- Department of Physiology and Pathophysiology, Peking University School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Beijing, P. R. China
| | - Y W Zhao
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, P. R. China
| | - Q H He
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, P. R. China
| | - Y Zhang
- Department of Physiology and Pathophysiology, Peking University School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Beijing, P. R. China
| | - J Z Su
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, P. R. China
| | - L L Wu
- Department of Physiology and Pathophysiology, Peking University School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Beijing, P. R. China
| | - G Y Yu
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, P. R. China
| | - X Cong
- Department of Physiology and Pathophysiology, Peking University School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Beijing, P. R. China
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Sun M, Zhu S, Wang Y, Zhao Y, Yan K, Li X, Wang X, He C, Ding C, Chen Y, Sun Z, Hu S. Effect of inflammation on association between cancer and coronary artery disease. BMC Cardiovasc Disord 2024; 24:72. [PMID: 38267838 PMCID: PMC10809766 DOI: 10.1186/s12872-023-03613-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 11/14/2023] [Indexed: 01/26/2024] Open
Abstract
BACKGROUND Cancer and coronary artery disease (CAD) is reported to often co-exist in same individuals, however, whether cancer is directly associated with anatomical severity of CAD is rarely studied. The present study aimed to observe the relationship between newly diagnosed cancer and anatomical severity of CAD, moreover, to investigate effect of inflammation on the relationship of cancer with CAD. METHODS 374 patients with newly diagnosed cancer who underwent coronary angiography (CAG) were enrolled. Through 1:3 propensity score matching (PSM) to cancer patients based on the age and gender among 51,106 non-cancer patients who underwent CAG, 1122 non-cancer patients were selected as control patients. Anatomical severity of CAD was assessed using SYNTAX score (SXscore) based on coronary angiographic image. SXscore ≤ 22 (highest quartile) was defined as SX-low, and SXscore > 22 as SX-high. The ratio of neutrophil to lymphocyte count (NLR) was used to describe inflammation level. Association between cancer and the anatomical severity of CAD was investigated using logistic regression. RESULTS Univariate logistic regression analysis showed a correlation between cancer and anatomical severity of CAD (OR: 1.419, 95% CI: 1.083-1.859; P = 0.011). Cancer was associated with increased risk of SX-high after adjusted for common risk factors of CAD (OR: 1.598, 95% CI: 1.172-2.179, P = 0.003). Significant association between cancer and SX-high was revealed among patients with high inflammation (OR: 1.656, 95% CI: 1.099-2.497, P = 0.016), but not among patients with low inflammation (OR: 1.530, 95% CI: 0.973-2.498, P = 0.089). CONCLUSIONS Cancer was associated with severity of CAD, however, the association between the two diseases was significant among patients with high inflammation rather than among patients with low inflammation.
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Affiliation(s)
- Mingzhuang Sun
- Department of Cardiology, Chinese PLA General Hospital, #28 Fuxing Rd, Beijing, 100853, China
- Cardiac Department, Aerospace Center Hospital, Peking University Aerospace School of Clinical Medicine, Beijing, China
| | - Shaoning Zhu
- Department of Cardiology, Chinese PLA General Hospital, #28 Fuxing Rd, Beijing, 100853, China
| | - Yihao Wang
- Department of Cardiology, Chinese PLA General Hospital, #28 Fuxing Rd, Beijing, 100853, China
| | - Yawei Zhao
- Department of Cardiology, Chinese PLA General Hospital, #28 Fuxing Rd, Beijing, 100853, China
| | - Kaixin Yan
- Department of Cardiology, Chinese PLA General Hospital, #28 Fuxing Rd, Beijing, 100853, China
| | - Xiaolong Li
- Department of Cardiology, Chinese PLA General Hospital, #28 Fuxing Rd, Beijing, 100853, China
| | - Xueting Wang
- Department of Cardiology, Chinese PLA General Hospital, #28 Fuxing Rd, Beijing, 100853, China
| | - Changjian He
- Cardiac Department, Aerospace Center Hospital, Peking University Aerospace School of Clinical Medicine, Beijing, China
| | - Chunhua Ding
- Cardiac Department, Aerospace Center Hospital, Peking University Aerospace School of Clinical Medicine, Beijing, China
| | - Yundai Chen
- Department of Cardiology, Chinese PLA General Hospital, #28 Fuxing Rd, Beijing, 100853, China
| | - Zhijun Sun
- Department of Cardiology, Chinese PLA General Hospital, #28 Fuxing Rd, Beijing, 100853, China.
| | - Shunying Hu
- Department of Cardiology, Chinese PLA General Hospital, #28 Fuxing Rd, Beijing, 100853, China.
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Hu D, Liang K, Dong Z, Wang J, Zhao Y, He K. Effective multi-modal clustering method via skip aggregation network for parallel scRNA-seq and scATAC-seq data. Brief Bioinform 2024; 25:bbae102. [PMID: 38493338 PMCID: PMC10944573 DOI: 10.1093/bib/bbae102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 01/06/2024] [Accepted: 02/16/2024] [Indexed: 03/18/2024] Open
Abstract
In recent years, there has been a growing trend in the realm of parallel clustering analysis for single-cell RNA-seq (scRNA) and single-cell Assay of Transposase Accessible Chromatin (scATAC) data. However, prevailing methods often treat these two data modalities as equals, neglecting the fact that the scRNA mode holds significantly richer information compared to the scATAC. This disregard hinders the model benefits from the insights derived from multiple modalities, compromising the overall clustering performance. To this end, we propose an effective multi-modal clustering model scEMC for parallel scRNA and Assay of Transposase Accessible Chromatin data. Concretely, we have devised a skip aggregation network to simultaneously learn global structural information among cells and integrate data from diverse modalities. To safeguard the quality of integrated cell representation against the influence stemming from sparse scATAC data, we connect the scRNA data with the aggregated representation via skip connection. Moreover, to effectively fit the real distribution of cells, we introduced a Zero Inflated Negative Binomial-based denoising autoencoder that accommodates corrupted data containing synthetic noise, concurrently integrating a joint optimization module that employs multiple losses. Extensive experiments serve to underscore the effectiveness of our model. This work contributes significantly to the ongoing exploration of cell subpopulations and tumor microenvironments, and the code of our work will be public at https://github.com/DayuHuu/scEMC.
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Affiliation(s)
- Dayu Hu
- School of Computer, National University of Defense Technology, No. 109 Deya Road, 410073 Changsha, Hunan, China
| | - Ke Liang
- School of Computer, National University of Defense Technology, No. 109 Deya Road, 410073 Changsha, Hunan, China
| | - Zhibin Dong
- School of Computer, National University of Defense Technology, No. 109 Deya Road, 410073 Changsha, Hunan, China
| | - Jun Wang
- School of Computer, National University of Defense Technology, No. 109 Deya Road, 410073 Changsha, Hunan, China
| | - Yawei Zhao
- Medical Big Data Research Center, Chinese PLA General Hospital, No. 28 Fuxing Road, 100853 Beijing, China
| | - Kunlun He
- Medical Big Data Research Center, Chinese PLA General Hospital, No. 28 Fuxing Road, 100853 Beijing, China
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Zhao Y, Zhong W. Recent Progress in Advanced Polyester Elastomers for Tissue Engineering and Bioelectronics. Molecules 2023; 28:8025. [PMID: 38138515 PMCID: PMC10745526 DOI: 10.3390/molecules28248025] [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: 11/09/2023] [Revised: 12/06/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
Polyester elastomers are highly flexible and elastic materials that have demonstrated considerable potential in various biomedical applications including cardiac, vascular, neural, and bone tissue engineering and bioelectronics. Polyesters are desirable candidates for future commercial implants due to their biocompatibility, biodegradability, tunable mechanical properties, and facile synthesis and fabrication methods. The incorporation of bioactive components further improves the therapeutic effects of polyester elastomers in biomedical applications. In this review, novel structural modification methods that contribute to outstanding mechanical behaviors of polyester elastomers are discussed. Recent advances in the application of polyester elastomers in tissue engineering and bioelectronics are outlined and analyzed. A prospective of the future research and development on polyester elastomers is also provided.
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Affiliation(s)
- Yawei Zhao
- Department of Biosystems Engineering, University of Manitoba, Winnipeg, MB R3T 2N2, Canada;
| | - Wen Zhong
- Department of Biosystems Engineering, University of Manitoba, Winnipeg, MB R3T 2N2, Canada;
- Department of Medical Microbiology, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
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Wang Y, Yang H, Lu N, Wang D, Zhu K, Wang Z, Mou L, Zhang Y, Zhao Y, Tao K, Ma F, Peng S. Electrochemical production of hydrogen peroxide by non-noble metal-doped g-C 3N 4 under a neutral electrolyte. Nanoscale 2023; 15:19148-19158. [PMID: 37938108 DOI: 10.1039/d3nr04307j] [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: 11/09/2023]
Abstract
Electrochemical oxygen reduction (ORR) for the production of clean hydrogen peroxide (H2O2) is an effective alternative to industrial anthraquinone methods. The development of highly active, stable, and 2e- ORR oxygen reduction electrocatalysts while suppressing the competing 4e- ORR pathway is currently the main challenge. Herein, bimetallic doping was successfully achieved based on graphitic carbon nitride (g-C3N4) with the simultaneous introduction of K and Co, whereby 2D porous K-Co/CNNs nanosheets were obtained. The introduction of Co promoted the selectivity for H2O2, while the introduction of K not only promoted the formation of 2D nanosheets of g-C3N4, but also inhibited the ablation of H2O2 by K-Co/CNNs. Electrochemical studies showed that the selectivity of H2O2 in K-Co/CNNs under neutral electrolyte was as high as 97%. After 24 h, the H2O2 accumulation of K-Co/CNNs was as high as 31.7 g L-1. K-Co/CNNs improved the stability of H2O2 by inhibiting the ablation of H2O2, making it a good 2e- ORR catalyst and providing a new research idea for the subsequent preparation of H2O2.
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Affiliation(s)
- Ying Wang
- School of Physical Science and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, China.
| | - Hongcen Yang
- School of Physical Science and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, China.
| | - Niandi Lu
- School of Physical Science and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, China.
| | - Di Wang
- School of Physical Science and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, China.
| | - Kun Zhu
- School of Physical Science and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, China.
| | - Zhixia Wang
- School of Physical Science and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, China.
| | - Lianshan Mou
- School of Physical Science and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, China.
| | - Yan Zhang
- School of Physical Science and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, China.
| | - Yawei Zhao
- School of Physical Science and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, China.
| | - Kun Tao
- School of Physical Science and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, China.
| | - Fei Ma
- School of Physical Science and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, China.
| | - Shanglong Peng
- School of Physical Science and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, China.
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Xie Y, Zhu Y, Shi Y, Zhao Y, Zhang H, Li F, Song H, Chen L, Guo W. Impact of Cross-Limb Stent-Graft Configuration on Hemodynamics in Abdominal Aortic Aneurysm Interventional Therapy. Cardiovasc Eng Technol 2023:10.1007/s13239-023-00702-1. [PMID: 37985614 DOI: 10.1007/s13239-023-00702-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Accepted: 11/07/2023] [Indexed: 11/22/2023]
Abstract
PURPOSE The cross-limb (CL) technique is a commonly used endovascular treatment for addressing unfavorable anatomical features in patients with abdominal aortic aneurysm (AAA). The configuration of CL stent-graft plays a critical role in determining the postoperative hemodynamic properties and physiological behaviors, which ultimately impact the efficacy and safety of endovascular AAA treatment. This study aims to investigate the relationship between hemodynamics and CL stent-graft configuration from a hemodynamic perspective. METHODS Five distinct geometric models of cross-limb (CL) stent-graft configurations were constructed by optimizing the real clinical computed tomography angiography (CTA) data. These models varied in main body lengths and cross angles and were used to perform numerical simulations to analyze various hemodynamic parameters. Flow pattern, distribution of wall shear stress (WSS)-related parameters, localized normalized helicity (LNH), pressure drop, and the displacement force of all models were examined in this paper. RESULTS In patient-specific cases, helical flow and WSS increase with the main body. However, it also generated secondary flow in localized areas, leading to increased oscillation in the WSS direction. Notably, increasing the stent graft's main body length or decreasing the cross angle reduced the displacement force exerted on the stent-graft. Reducing the cross angle did not significantly alter the hemodynamic characteristics. CONCLUSION In the clinical practice of CL deployment, it is crucial to carefully consider the stent-graft configuration and the patient specific to achieve optimal postoperative outcomes. This study provides valuable insights for guiding stent selection and treatment planning in patients with abdominal aortic aneurysm undergoing CL techniques, from a hemodynamic perspective.
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Affiliation(s)
- Yanqing Xie
- Department of Cardiology, The First Affiliated Hospital of Ningbo University, Ningbo, 315020, China
| | - Yating Zhu
- Department of Vascular Surgery, First Medical Center of Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China
| | - Yike Shi
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Yawei Zhao
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Hongpeng Zhang
- Department of Vascular Surgery, First Medical Center of Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China
| | - Fen Li
- College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan, 030024, China.
| | - Hui Song
- College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan, 030024, China
| | - Lingfeng Chen
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Wei Guo
- Department of Vascular Surgery, First Medical Center of Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China.
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Han H, Zhao Y, Du J, Wang S, Yang X, Li W, Song J, Zhang S, Zhang Z, Tan Y, Hatch GM, Zhang M, Chen L. Exercise improves cognitive dysfunction and neuroinflammation in mice through Histone H3 lactylation in microglia. Immun Ageing 2023; 20:63. [PMID: 37978517 PMCID: PMC10655345 DOI: 10.1186/s12979-023-00390-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 11/07/2023] [Indexed: 11/19/2023]
Abstract
BACKGROUND Exercise is postulated to be a promising non-pharmacological intervention for the improvement of neurodegenerative disease pathology. However, the mechanism of beneficial effects of exercise on the brain remains to be further explored. In this study, we investigated the effect of an exercise-induced metabolite, lactate, on the microglia phenotype and its association with learning and memory. RESULTS Microglia were hyperactivated in the brains of AlCl3/D-gal-treated mice, which was associated with cognitive decline. Running exercise ameliorated the hyperactivation and increased the anti-inflammatory/reparative phenotype of microglia and improved cognition. Mice were injected intraperitoneally with sodium lactate (NaLA) had similar beneficial effects as that of exercise training. Exogenous NaLA addition to cultured BV2 cells promoted their transition from a pro-inflammatory to a reparative phenotype. CONCLUSION The elevated lactate acted as an "accelerator" of the endogenous "lactate timer" in microglia promoting this transition of microglia polarization balance through lactylation. These findings demonstrate that exercise-induced lactate accelerates the phenotypic transition of microglia, which plays a key role in reducing neuroinflammation and improving cognitive function.
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Affiliation(s)
- Hao Han
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, 126 Xin Min Street, Changchun, 130021, Jilin, China
| | - Yawei Zhao
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, 126 Xin Min Street, Changchun, 130021, Jilin, China
| | - Junda Du
- School of Pharmaceutical Sciences, Jilin University, Changchun, 130021, China
| | - Sushan Wang
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, 126 Xin Min Street, Changchun, 130021, Jilin, China
| | - Xuehan Yang
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, 126 Xin Min Street, Changchun, 130021, Jilin, China
| | - Weijie Li
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, 126 Xin Min Street, Changchun, 130021, Jilin, China
| | - Jiayi Song
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, 126 Xin Min Street, Changchun, 130021, Jilin, China
| | - Siwei Zhang
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, 126 Xin Min Street, Changchun, 130021, Jilin, China
| | - Ziyi Zhang
- The Second Hospital of Jilin University, Changchun, 130041, China
| | - Yongfei Tan
- South China Institute of Collaborative Innovation, Dongguan, 523808, China
| | - Grant M Hatch
- Departments of Pharmacology and Therapeutics, Biochemistry and Medical Genetics, Center for Research and Treatment of Atherosclerosis, DREAM Children's Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, MB, R3E0T6, Canada
| | - Ming Zhang
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China.
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, 126 Xin Min Street, Changchun, 130021, Jilin, China.
| | - Li Chen
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China.
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, 126 Xin Min Street, Changchun, 130021, Jilin, China.
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Liu R, Su S, Xing J, Liu K, Zhao Y, Stangis M, Jacho DP, Yildirim-Ayan ED, Gatto-Weis CM, Chen B, Li X. Tumor removal limits prostate cancer cell dissemination in bone and osteoblasts induce cancer cell dormancy through focal adhesion kinase. J Exp Clin Cancer Res 2023; 42:264. [PMID: 37821954 PMCID: PMC10566127 DOI: 10.1186/s13046-023-02849-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/02/2023] [Indexed: 10/13/2023] Open
Abstract
BACKGROUND Disseminated tumor cells (DTCs) can enter a dormant state and cause no symptoms in cancer patients. On the other hand, the dormant DTCs can reactivate and cause metastases progression and lethal relapses. In prostate cancer (PCa), relapse can happen after curative treatments such as primary tumor removal. The impact of surgical removal on PCa dissemination and dormancy remains elusive. Furthermore, as dormant DTCs are asymptomatic, dormancy-induction can be an operational cure for preventing metastases and relapse of PCa patients. METHODS We used a PCa subcutaneous xenograft model and species-specific PCR to survey the DTCs in various organs at different time points of tumor growth and in response to tumor removal. We developed in vitro 2D and 3D co-culture models to recapitulate the dormant DTCs in the bone microenvironment. Proliferation assays, fluorescent cell cycle reporter, qRT-PCR, and Western Blot were used to characterize the dormancy phenotype. We performed RNA sequencing to determine the dormancy signature of PCa. A drug repurposing algorithm was applied to predict dormancy-inducing drugs and a top candidate was validated for the efficacy and the mechanism of dormancy induction. RESULTS We found DTCs in almost all mouse organs examined, including bones, at week 2 post-tumor cell injections. Surgical removal of the primary tumor reduced the overall DTC abundance, but the DTCs were enriched only in the bones. We found that osteoblasts, but not other cells of the bones, induced PCa cell dormancy. RNA-Seq revealed the suppression of mitochondrial-related biological processes in osteoblast-induced dormant PCa cells. Importantly, the mitochondrial-related biological processes were found up-regulated in both circulating tumor cells and bone metastases from PCa patients' data. We predicted and validated the dormancy-mimicking effect of PF-562,271 (PF-271), an inhibitor of focal adhesion kinase (FAK) in vitro. Decreased FAK phosphorylation and increased nuclear translocation were found in both co-cultured and PF-271-treated C4-2B cells, suggesting that FAK plays a key role in osteoblast-induced PCa dormancy. CONCLUSIONS Our study provides the first insights into how primary tumor removal enriches PCa cell dissemination in the bones, defines a unique osteoblast-induced PCa dormancy signature, and identifies FAK as a PCa cell dormancy gatekeeper.
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Affiliation(s)
- Ruihua Liu
- Department of Cell and Cancer Biology, College of Medicine and Life Sciences, the University of Toledo, 3000 Transverse Drive, Toledo, OH, 43614, USA
| | - Shang Su
- Department of Cell and Cancer Biology, College of Medicine and Life Sciences, the University of Toledo, 3000 Transverse Drive, Toledo, OH, 43614, USA
| | - Jing Xing
- Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, MI, 49503, USA
| | - Ke Liu
- Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, MI, 49503, USA
| | - Yawei Zhao
- Department of Cell and Cancer Biology, College of Medicine and Life Sciences, the University of Toledo, 3000 Transverse Drive, Toledo, OH, 43614, USA
| | - Mary Stangis
- Department of Cell and Cancer Biology, College of Medicine and Life Sciences, the University of Toledo, 3000 Transverse Drive, Toledo, OH, 43614, USA
| | - Diego P Jacho
- Bioengineering Department, the University of Toledo, Toledo, OH, 43606, USA
| | | | - Cara M Gatto-Weis
- Department of Pathology, College of Medicine and Life Sciences, the University of Toledo, Toledo, OH, 43614, USA
| | - Bin Chen
- Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, MI, 49503, USA.
- Department of Pharmacology and Toxicology, Michigan State University, Grand Rapids, MI, 49503, USA.
| | - Xiaohong Li
- Department of Cell and Cancer Biology, College of Medicine and Life Sciences, the University of Toledo, 3000 Transverse Drive, Toledo, OH, 43614, USA.
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Zhu ZK, Lu X, Tang WQ, Sun JW, Shen L, Chen QL, Liu HX, Yu Y, Gu W, Zhao YW, Xie Y. [Safety evaluation of simultaneous administration of quadrivalent influenza split virion vaccine and 23-valent pneumococcal polysaccharide vaccine in adults aged 60 years and older]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1412-1417. [PMID: 37554083 DOI: 10.3760/cma.j.cn112150-20230417-00295] [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: 08/10/2023]
Abstract
Objective: To evaluate the safety of simultaneous administration of quadrivalent influenza split virion vaccine and 23-valent pneumococcal polysaccharide vaccine in adults aged 60 years and older. Methods: From November 2021 to May 2022, eligible participants aged 60 years and older were recruited in Taizhou City, Jiangsu Province, China, and a total of 2 461 participants were ultimately enrolled in this study. Each participant simultaneously received one dose of quadrivalent influenza split virion vaccine and one dose of 23-valent pneumococcal polysaccharide vaccine. The safety was observed within 28 days after vaccination. Safety information was collected through voluntary reporting and regular follow-ups. Results: All 2 461 participants completed the simultaneous administration of both vaccines and the safety follow-ups for 28 days after vaccination. The mean age of the participants was (70.66±6.18) years, with 54.61% (1 344) being male, and all participants were Han Chinese residents. About 22.51% (554) of the participants had underlying medical conditions. The overall incidence of adverse reactions within 0-28 days after simultaneous vaccination was 2.07% (51/2 461), mainly consisting of Grade 1 adverse reactions [1.83% (45/2 461)], with no reports of Grade 4 or higher adverse reactions or vaccine-related serious adverse events. The incidence of local adverse reactions was 0.98% (24/2 461), primarily presenting as pain at the injection site [0.93% (23/2 461)]. The incidence of systemic adverse reactions was 1.42% (35/2 461), with fever [0.85% (21/2 461)] being the main symptom. In the group with underlying medical conditions and the healthy group, their overall incidence of adverse reactions was 2.53% (14/554) and 1.94% (37/1 907), respectively. The incidence of local adverse reactions in the two groups was 1.62% (9/554) and 0.79% (15/1 907), respectively, and the incidence of systemic adverse reactions was 1.44% (8/554) and 1.42% (27/1 907), respectively, with no statistically significant differences between them (all P>0.05). Conclusion: It is safe for adults aged 60 years and older to receive quadrivalent influenza split virion vaccine and 23-valent pneumococcal polysaccharide vaccine at the same time.
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Affiliation(s)
- Z K Zhu
- Taizhou Center for Disease Control and Prevention, Taizhou 225300, China
| | - X Lu
- Sinovac Biotech Co., Ltd., Beijing 100085, China
| | - W Q Tang
- Taizhou Center for Disease Control and Prevention, Taizhou 225300, China
| | - J W Sun
- Sinovac Life Sciences Co., Ltd., Beijing 102601, China
| | - L Shen
- Taizhou Center for Disease Control and Prevention, Taizhou 225300, China
| | - Q L Chen
- Sinovac Biotech Co., Ltd., Beijing 100085, China
| | - H X Liu
- Taizhou Center for Disease Control and Prevention, Taizhou 225300, China
| | - Y Yu
- Taizhou Center for Disease Control and Prevention, Taizhou 225300, China
| | - W Gu
- Taizhou Center for Disease Control and Prevention, Taizhou 225300, China
| | - Y W Zhao
- Sinovac Life Sciences Co., Ltd., Beijing 102601, China
| | - Y Xie
- Taizhou Center for Disease Control and Prevention, Taizhou 225300, China
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20
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Zhao Y, Shi Y, Jin Y, Cao Y, Song H, Chen L, Li F, Li X, Chen W. Evaluating Short-Term and Long-Term Risks Associated with Renal Artery Stenosis Position and Severity: A Hemodynamic Study. Bioengineering (Basel) 2023; 10:1002. [PMID: 37760104 PMCID: PMC10525140 DOI: 10.3390/bioengineering10091002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/16/2023] [Accepted: 08/21/2023] [Indexed: 09/29/2023] Open
Abstract
Background: Moderate renal artery stenosis (50-70%) may lead to uncontrolled hypertension and eventually cause irreversible damage to renal function. However, the clinical criteria for interventional treatment are still ambiguous in this condition. This study investigated the impact of the position and degree of renal artery stenosis on hemodynamics near the renal artery to assess the short-term and long-term risks associated with this disease. Methods: Calculation models with different degrees of stenosis (50%, 60%, and 70%) located at different positions in the right renal artery were established based on the computed tomography angiography (CTA) of a personalized case. And computational fluid dynamics (CFD) was used to analyze hemodynamic surroundings near the renal artery. Results: As the degree of stenosis increases and the stenosis position is far away from the aorta, there is a decrease in renal perfusion. An analysis of the wall shear stress (WSS)-related parameters indicated areas near the renal artery (downstream of the stenosis and the entrance of the right renal artery) with potential long-term risks of thrombosis and inflammation. Conclusion: The position and degree of stenosis play a significant role in judging short-term risks associated with renal perfusion. Moreover, clinicians should consider not only short-term risks but also independent long-term risk factors, such as certain regions of 50% stenosis with adequate renal perfusion may necessitate prompt intervention.
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Affiliation(s)
- Yawei Zhao
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China; (Y.Z.); (Y.S.); (Y.J.); (Y.C.); (X.L.); (W.C.)
| | - Yike Shi
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China; (Y.Z.); (Y.S.); (Y.J.); (Y.C.); (X.L.); (W.C.)
| | - Yusheng Jin
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China; (Y.Z.); (Y.S.); (Y.J.); (Y.C.); (X.L.); (W.C.)
| | - Yifan Cao
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China; (Y.Z.); (Y.S.); (Y.J.); (Y.C.); (X.L.); (W.C.)
| | - Hui Song
- College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, China;
- Institute of Applied Mechanics, Taiyuan University of Technology, Taiyuan 030024, China
| | - Lingfeng Chen
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China; (Y.Z.); (Y.S.); (Y.J.); (Y.C.); (X.L.); (W.C.)
| | - Fen Li
- College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, China;
- Institute of Applied Mechanics, Taiyuan University of Technology, Taiyuan 030024, China
| | - Xiaona Li
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China; (Y.Z.); (Y.S.); (Y.J.); (Y.C.); (X.L.); (W.C.)
| | - Weiyi Chen
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China; (Y.Z.); (Y.S.); (Y.J.); (Y.C.); (X.L.); (W.C.)
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21
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Zhang F, Jia Y, Chen F, Zhao Y, Li L, Chang Z. Tumor-targeted bioactive nanoprobes visualizing of hydrogen peroxide for forecasting chemotherapy-exacerbated malignant prognosis. Front Bioeng Biotechnol 2023; 11:1226680. [PMID: 37635993 PMCID: PMC10450909 DOI: 10.3389/fbioe.2023.1226680] [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: 05/22/2023] [Accepted: 07/17/2023] [Indexed: 08/29/2023] Open
Abstract
Introduction: Fluorescent visualization of hydrogen peroxide in the tumor microenvironment (TME) is conducive to predicting malignant prognosis after chemotherapy. Two photon microscopy has been employed for in vivo hydrogen peroxide detection owing to its advantages of deep penetration and low phototoxicity. Methods: In this study, a two-photon fluorescent probe (TPFP) was protected by mesoporous silica nanoparticles (MSNs) and masked by cloaking the cancer cell membranes (CM), forming a tumor-targeted bioactive nanoprobe, termed MSN@TPFP@CM. Results: This multifunctional nanoprobe allowed for the effective and selective detection of excessive hydrogen peroxide production in chemotherapeutic Etoposide (VP-16)-challenged tumor cells using two-photon microscopy. After specific accumulation in tumors, VP-16-MSN@TPFP@CM monitored tumor-specific hydrogen peroxide levels and revealed a positive correlation between oxidative stress in the TME and chemotherapy-exacerbated malignant prognosis. Discussion: Given the recent translation of fluorescent imaging into early clinical trials and the high biocompatibility of bioactive nanoprobes, our approach may pave the way for specific imaging of oxidative stress in solid tumors after treatment and provide a promising technology for malignant prognosis predictions.
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Affiliation(s)
- Fan Zhang
- CAS Key Laboratory of Bio Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology Chinese Academy of Sciences, Suzhou, China
- Zhengzhou Institute of Biomedical Engineering and Technology, Zhengzhou, China
| | - Yong Jia
- School of Nursing, Jilin University, Changchun, Jilin, China
| | - Fangman Chen
- CAS Key Laboratory of Bio Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology Chinese Academy of Sciences, Suzhou, China
| | - Yawei Zhao
- School of Nursing, Jilin University, Changchun, Jilin, China
| | - Li Li
- CAS Key Laboratory of Bio Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology Chinese Academy of Sciences, Suzhou, China
- Zhengzhou Institute of Biomedical Engineering and Technology, Zhengzhou, China
| | - Zhimin Chang
- CAS Key Laboratory of Bio Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology Chinese Academy of Sciences, Suzhou, China
- Zhengzhou Institute of Biomedical Engineering and Technology, Zhengzhou, China
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22
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Luo Y, Li X, Zhao Y, Zhong W, Xing M, Lyu G. Development of Organs-on-Chips and Their Impact on Precision Medicine and Advanced System Simulation. Pharmaceutics 2023; 15:2094. [PMID: 37631308 PMCID: PMC10460056 DOI: 10.3390/pharmaceutics15082094] [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] [Received: 07/04/2023] [Revised: 07/28/2023] [Accepted: 08/02/2023] [Indexed: 08/27/2023] Open
Abstract
Drugs may undergo costly preclinical studies but still fail to demonstrate their efficacy in clinical trials, which makes it challenging to discover new drugs. Both in vitro and in vivo models are essential for disease research and therapeutic development. However, these models cannot simulate the physiological and pathological environment in the human body, resulting in limited drug detection and inaccurate disease modelling, failing to provide valid guidance for clinical application. Organs-on-chips (OCs) are devices that serve as a micro-physiological system or a tissue-on-a-chip; they provide accurate insights into certain functions and the pathophysiology of organs to precisely predict the safety and efficiency of drugs in the body. OCs are faster, more economical, and more precise. Thus, they are projected to become a crucial addition to, and a long-term replacement for, traditional preclinical cell cultures, animal studies, and even human clinical trials. This paper first outlines the nature of OCs and their significance, and then details their manufacturing-related materials and methodology. It also discusses applications of OCs in drug screening and disease modelling and treatment, and presents the future perspective of OCs.
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Affiliation(s)
- Ying Luo
- Burn & Trauma Treatment Center, The Affiliated Hospital of Jiangnan University, Wuxi 214000, China; (Y.L.); (X.L.)
- Engineering Research Center of the Ministry of Education for Wound Repair Technology, Jiangnan University, Wuxi 214000, China
- Wuxi School of Medicine, Jiangnan University, Wuxi 214000, China
| | - Xiaoxiao Li
- Burn & Trauma Treatment Center, The Affiliated Hospital of Jiangnan University, Wuxi 214000, China; (Y.L.); (X.L.)
- Engineering Research Center of the Ministry of Education for Wound Repair Technology, Jiangnan University, Wuxi 214000, China
- Wuxi School of Medicine, Jiangnan University, Wuxi 214000, China
- Department of General Surgery, Huai’an 82 Hospital, Huai’an 223003, China
| | - Yawei Zhao
- Department of Biosystems Engineering, University of Manitoba, Winnipeg, MB R3T 2N2, Canada; (Y.Z.); (W.Z.)
- Department of Mechanical Engineering, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Wen Zhong
- Department of Biosystems Engineering, University of Manitoba, Winnipeg, MB R3T 2N2, Canada; (Y.Z.); (W.Z.)
| | - Malcolm Xing
- Department of Mechanical Engineering, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Guozhong Lyu
- Burn & Trauma Treatment Center, The Affiliated Hospital of Jiangnan University, Wuxi 214000, China; (Y.L.); (X.L.)
- Engineering Research Center of the Ministry of Education for Wound Repair Technology, Jiangnan University, Wuxi 214000, China
- Wuxi School of Medicine, Jiangnan University, Wuxi 214000, China
- National Research Center for Emergency Medicine, Beijing 100000, China
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23
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Liu QY, Li CX, Gou XN, Ma J, Liu YL, Zhang YW, Zhao YW. [Clinicopathological analysis of intravascular lobular capillary hemangioma]. Zhonghua Bing Li Xue Za Zhi 2023; 52:724-726. [PMID: 37408406 DOI: 10.3760/cma.j.cn112151-20221030-00900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 07/07/2023]
Affiliation(s)
- Q Y Liu
- Department of Pathology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - C X Li
- Department of Pathology, Gongyi City People's Hospital, Zhengzhou 451200, China
| | - X N Gou
- Department of Pathology, the First Medical Center of PLA General Hospital, Beijing 100853, China
| | - J Ma
- Department of Pathology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - Y L Liu
- Department of Ultrasound, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - Y W Zhang
- Department of Pathology, Shangqiu First People's Hospital, Shangqiu 476000, China
| | - Y W Zhao
- Department of Pathology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
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24
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Zhao Y, Su S, Li X. Parathyroid Hormone-Related Protein/Parathyroid Hormone Receptor 1 Signaling in Cancer and Metastasis. Cancers (Basel) 2023; 15:cancers15071982. [PMID: 37046642 PMCID: PMC10093484 DOI: 10.3390/cancers15071982] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 03/24/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023] Open
Abstract
PTHrP exerts its effects by binding to its receptor, PTH1R, a G protein-coupled receptor (GPCR), activating the downstream cAMP signaling pathway. As an autocrine, paracrine, or intracrine factor, PTHrP has been found to stimulate cancer cell proliferation, inhibit apoptosis, and promote tumor-induced osteolysis of bone. Despite these findings, attempts to develop PTHrP and PTH1R as drug targets have not produced successful results in the clinic. Nevertheless, the efficacy of blocking PTHrP and PTH1R has been shown in various types of cancer, suggesting its potential for therapeutic applications. In light of these conflicting data, we conducted a comprehensive review of the studies of PTHrP/PTH1R in cancer progression and metastasis and highlighted the strengths and limitations of targeting PTHrP or PTH1R in cancer therapy. This review also offers our perspectives for future research in this field.
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25
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Jin S, Hui M, Lu Y, Zhao Y. An overview on the two-component systems of Streptomyces coelicolor. World J Microbiol Biotechnol 2023; 39:78. [PMID: 36645528 DOI: 10.1007/s11274-023-03522-6] [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: 12/01/2022] [Accepted: 01/10/2023] [Indexed: 01/17/2023]
Abstract
The two-component system (TCS) found in various organisms is a regulatory system, which is involved in the response by the organism to stimuli, thereby regulating the internal behavior of the cell. It is commonly found in prokaryotes and is an important signaling system in bacteria. TCSs are involved in the regulation of physiological and morphological differentiation of the industrially important microbes from the genus Streptomyces, which produce a vast array of bioactive secondary metabolites (SMs). Genetic engineering of TCSs can substantially increase the yield of target SMs, which is valuable for industrial-scale production. Research on TCS has mainly been completed in the model strain Streptomyces coelicolor. In this review, we summarize the recent advances in the functional identification and elucidation of the regulatory mechanisms of various TCSs in S. coelicolor, with a focus on their roles in the biosynthesis of important SMs.
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Affiliation(s)
- Shangping Jin
- College of Bioengineering, Henan University of Technology, 100 Lianhua Street, 450001, Zhengzhou, China
| | - Ming Hui
- College of Bioengineering, Henan University of Technology, 100 Lianhua Street, 450001, Zhengzhou, China
| | - Yinhua Lu
- College of Life Sciences, Shanghai Normal University, 100 Guilin Road, 200234, Shanghai, China.
| | - Yawei Zhao
- College of Bioengineering, Henan University of Technology, 100 Lianhua Street, 450001, Zhengzhou, China.
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26
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Cui L, Zhao Y, Pan Y, Zheng X, Shao D, Jia Y, He K, Li K, Chen L. Chemotherapy Induces Ovarian Cancer Cell Repopulation Through the Caspase 3-Mediated Arachidonic Acid Metabolic Pathway [Corrigendum]. Onco Targets Ther 2022; 15:1503-1504. [DOI: 10.2147/ott.s397709] [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] [Received: 11/15/2022] [Accepted: 11/15/2022] [Indexed: 12/09/2022] Open
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27
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Zhao Y, Qiu S, Li K, Luo L, Yin J, Liu J. Proximal Online Gradient Is Optimum for Dynamic Regret: A General Lower Bound. IEEE Trans Neural Netw Learn Syst 2022; 33:7755-7764. [PMID: 34156952 DOI: 10.1109/tnnls.2021.3087579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In online learning, the dynamic regret metric chooses the reference oracle that may change over time, while the typical (static) regret metric assumes the reference solution to be constant over the whole time horizon. The dynamic regret metric is particularly interesting for applications, such as online recommendation (since the customers' preference always evolves over time). While the online gradient (OG) method has been shown to be optimal for the static regret metric, the optimal algorithm for the dynamic regret remains unknown. In this article, we show that proximal OG (a general version of OG) is optimum to the dynamic regret by showing that the proved lower bound matches the upper bound. It is highlighted that we provide a new and general lower bound of dynamic regret. It provides new understanding about the difficulty to follow the dynamics in the online setting.
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28
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Gan Y, Zhong X, Zhao Y, Li G, Ye H, Li C. Low dose versus standard dose rituximab for the treatment of antiphospholipid syndrome: A pilot study from a tertiary medical center. Front Immunol 2022; 13:971366. [PMID: 36405743 PMCID: PMC9670802 DOI: 10.3389/fimmu.2022.971366] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 10/11/2022] [Indexed: 03/21/2024] Open
Abstract
BACKGROUND To investigate the therapeutic effects and safety of low-dose and standard-dose rituximab (RTX) in the treatment of antiphospholipid syndrome (APS). METHODS In this real-world study, we included 22 consecutive patients with APS who received RTX. Standard dose (SD) was defined as an overall dosage of RTX ≥ 1000mg in the induction period, and low dose (LD) was defined as an overall dosage of RTX <1000mg. RESULTS Of included patients, 1 patients died, 2 patients withdrew and 19 patients completed 6-month follow-up. Nine patients received SD-RTX and 13 patients received LD-RTX, and elder patients [LD-RTX vs. SD-RTX: (49.1 ± 15.5) vs. (35.8 ± 12.3) years, p = 0.044] and patients with later-onset [LD-RTX vs. SD-RTX: (46.8 ± 16.3) vs. (31.3 ± 13.6) years, p = 0.029] were more frequently included in LD-RTX than SD-RTX. Following 6 month RTX treatment, 8 patients (42.1%) achieved complete remission, 8 patients (42.1%) achieved partial remission and 3 patients (15.8%) showed no remission. The titers of anticardiolipin antibodies [baseline vs. 6 months: 30.8 (10.7, 90) vs. 19.5 (2.45, 69.10) U/L, p = 0.023] and the levels of erythrocyte sedimentation rate [baseline vs. 6 months: 29 (6, 63) vs. '6 (3, 14) mm/h, p = 0.021] exhibited a significantly decrease in all APS patients. Remission rate and titers of anti-β2-glycoprotein I and lupus anticoagulant did not differ significantly between two groups. CONCLUSION RTX might be a safe and effective option for patients with APS, and low dose confers equal efficacy as standard dose. Further cohort studies are needed to confirm our findings.
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Affiliation(s)
- Yuzhou Gan
- Department of Rheumatology & Immunology, Beijing Key Laboratory for Rheumatism and Immune Diagnosis (BZ0135), Peking University People’s Hospital, Beijing, China
- Center of Clinical Immunology, Peking University, Beijing, China
| | - Xue Zhong
- Department of Pharmacy, Peking University People’s Hospital, Beijing, China
| | - Yawei Zhao
- Department of Rheumatology and Immunology, Luohe Central Hospital, Luohe, Henan, China
| | - Gongming Li
- Department of Rheumatology, Linyi Traditional Chinese Medicine Hospital, Linyi, Shandong, China
| | - Hua Ye
- Department of Rheumatology & Immunology, Beijing Key Laboratory for Rheumatism and Immune Diagnosis (BZ0135), Peking University People’s Hospital, Beijing, China
- Center of Clinical Immunology, Peking University, Beijing, China
| | - Chun Li
- Department of Rheumatology & Immunology, Beijing Key Laboratory for Rheumatism and Immune Diagnosis (BZ0135), Peking University People’s Hospital, Beijing, China
- Center of Clinical Immunology, Peking University, Beijing, China
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Yan M, Zhao Y, Meng Q, Wang S, Ding Y, Liu Q, Yin H, Chen L. Effects of virtual reality combined cognitive and physical interventions on cognitive function in older adults with mild cognitive impairment: A systematic review and meta-analysis. Ageing Res Rev 2022; 81:101708. [PMID: 35953010 DOI: 10.1016/j.arr.2022.101708] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 07/28/2022] [Accepted: 08/05/2022] [Indexed: 01/31/2023]
Abstract
OBJECTIVE Combined cognitive and physical interventions based on virtual reality may help delay the progression of MCI to dementia or prevent dementia. However, their efficacy is less well studied compared to pharmaceutical treatments. The purpose of this review was to evaluate the effects of cognitive and physical interventions based on virtual reality on cognitive function (global cognition, memory or executive function/attention) of older adults with mild cognitive impairment. METHODS We searched the PubMed, Web of Science, Scopus, Embase, Cochrane Library, PsycINFO, CINAHL and IEEE from inception to 13 May 2021. Only randomized controlled trials which incorporated virtual reality cognitive and physical components targeted to individuals with mild cognitive impairment were eligible. Two researchers independently conducted document retrieval, study selection, data extraction, and methodological quality evaluation. RESULT 7 randomized controlled trials were included in a total of 8 articles. No studies were rated as having a "high" risk of overall bias. The results of a meta-analysis showed that VR combined cognitive and physical interventions enhanced the global cognitive (MD = 2.66, 95% CI = 1.79-3.54, P = 0.03, I 2 = 68%) abilities of older adults with mild cognitive impairment. The meta-analysis indicated that after virtual reality combined cognitive and physical interventions, effects on memory (SMD = -0.03, 95% CI = -0.60 to 0.55, P = 0.78, I 2 = 0%) and executive function/attention (SMD = -0.19, 95% CI = -0.74 to 0.36, P = 0.09, I 2 = 53%) were not statistically significant. CONCLUSIONS The present meta-analysis verifies the potential rehabilitative effects of virtual reality combined cognitive and physical interventions for older adults with mild cognitive impairment. More research is also needed to determine the optimal intensity and timing of interventions in the future.
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Affiliation(s)
- Mingli Yan
- School of Nursing, Jilin University, Changchun 130021, China.
| | - Yawei Zhao
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences, Jilin University, Changchun 130021, China.
| | - Qiuyan Meng
- Department of Endocrinology, China-Japan Friendship Hospital, East Yinghuayuan Street, Chaoyang District, Beijing 100029, China.
| | - Shuo Wang
- School of Nursing, Xuzhou Medical University, Xuzhou 221000, China.
| | - Yiwen Ding
- School of Nursing, Jilin University, Changchun 130021, China.
| | - Qian Liu
- School of Nursing, Jilin University, Changchun 130021, China.
| | - Huiru Yin
- School of Nursing, Jilin University, Changchun 130021, China.
| | - Li Chen
- School of Nursing, Jilin University, Changchun 130021, China.
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30
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Wu W, Li Z, Zhao Y, Yu C, Zhao P, Liu J, He K. Decentralized Online Learning: Take Benefits from Others’ Data without Sharing Your Own to Track Global Trend. ACM T INTEL SYST TEC 2022. [DOI: 10.1145/3559765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
Decentralized Online Learning (online learning in decentralized networks) attracts more and more attention, since it is believed that Decentralized Online Learning can help the data providers cooperatively better solve their online problems without sharing their private data to a third party or other providers. Typically, the cooperation is achieved by letting the data providers exchange their models between neighbors, e.g., recommendation model. However, the best regret bound for a decentralized online learning algorithm is
\({\mathcal {O}\left(n\sqrt {T} \right)} \)
, where
n
is the number of nodes (or users) and
T
is the number of iterations. This is clearly insignificant since this bound can be achieved
without
any communication in the networks. This reminds us to ask a fundamental question:
Can people really get benefit from the decentralized online learning by exchanging information?
In this paper, we studied when and why the communication can help the decentralized online learning to reduce the regret. Specifically, each loss function is characterized by two components: the adversarial component and the stochastic component. Under this characterization, we show that decentralized online gradient (DOG) enjoys a regret bound
\({\mathcal {O}\left(\sqrt {n^2TG^2 + n T \sigma ^2} \right)} \)
, where
G
measures the magnitude of the adversarial component in the private data (or equivalently the local loss function) and
σ
measures the randomness within the private data. This regret suggests that people can get benefits from the randomness in the private data by exchanging private information. Another important contribution of this paper is to consider the dynamic regret – a more practical regret to track users’ interest dynamics. Empirical studies are also conducted to validate our analysis.
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Affiliation(s)
- Wendi Wu
- Institute for Quantum Information & State Key Laboratory of High Performance Computing, College of Computer Science and Technology, National University of Defense Technology, China
| | - Zongren Li
- Medical Big Data Research Center, Chinese PLA General Hospital, China
| | - Yawei Zhao
- Medical Big Data Research Center, Chinese PLA General Hospital, China, and School of Cyberspace Security, Dongguan University of Technology, China
| | - Chen Yu
- Department of Computer Science, University of Rochester, USA
| | | | | | - Kunlun He
- Medical Big Data Research Center, Chinese PLA General Hospital, China
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Gan Y, Zhao Y, Li G, Ye H, Zhou Y, Hou C, Wang L, Guo J, Li C. Risk Factors and Outcomes of Acute Myocardial Infarction in a Cohort of Antiphospholipid Syndrome. Front Cardiovasc Med 2022; 9:871011. [PMID: 35865377 PMCID: PMC9294316 DOI: 10.3389/fcvm.2022.871011] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 06/08/2022] [Indexed: 11/13/2022] Open
Abstract
Background Antiphospholipid syndrome (APS) is a disorder associated with thromboembolic diseases, including acute myocardial infarction (AMI). Given that AMI is a relatively common condition with poor prognostic features, identification of risk factors for AMI in APS is important. Methods A retrospective cohort study was performed consisting of 332 patients with APS, and 239 patients with thrombotic APS were finally included. Patients were followed up in the outpatient department for 5 years. Clinical data and laboratory parameters were analyzed to identify the risk factors for AMI in APS. The primary and secondary clinical outcomes were all-cause mortality and recurrence of thrombosis, respectively. Results AMI was observed in 12.1% (29/239) of patients with APS. Compared to patients without AMI, patients with AMI had multiple organ thrombosis (55.1 vs. 34.3%, p = 0.029), recurrent thrombosis (58.6 vs. 34.3%, p = 0.011), a higher incidence of atherosclerosis (62.1 vs. 23.8%, p < 0.001), higher neutrophil count (×109/L) [4.68 (3.25, 8.17) vs. 3.71 (2.64, 5.80), p = 0.036], longer QT interval (ms) [438 ms (423, 454) vs. 425 ms (410, 446), p = 0.016], and fewer venous thrombosis events (27.6 vs. 63.3%, p < 0.001). Multivariate logistic regression analysis (adjusted for age and gender) identified several factors that were positively associated with AMI, including multiple organ thrombosis [odds ratio (OR) 8.862, 95% confidence interval (CI): 1.817–43.212, p = 0.007), atherosclerosis (OR 5.397, 95%CI: 1.943–14.994, p = 0.001), and elevated neutrophil count (>6.3 ×109/L) (OR 3.271, 95%CI: 1.268–8.440, p = 0.014). The venous thrombosis was negatively associated with AMI (OR 0.106, 95%CI: 0.036–0.314, p < 0.001). Kaplan–Meier analysis revealed that the recurrence rates of arterial thrombosis differed significantly between patients with AMI and those without AMI [hazard ratio (HR) = 3.307, p = 0.038]. Conclusion Atherosclerosis, multiple organ thrombosis, an increased number of neutrophils are variables positively associated with AMI in APS, and venous thrombosis had a negative association with AMI. AMI only predicts the subsequent recurrence of arterial thrombosis. These findings suggest that distinct pathophysiological mechanisms may exist and contribute to the development of venous or arterial thrombotic APS.
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Affiliation(s)
- Yuzhou Gan
- Beijing Key Laboratory for Rheumatism and Immune Diagnosis (BZ0135), Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China
- Center of Clinical Immunology, Peking University, Beijing, China
| | - Yawei Zhao
- Beijing Key Laboratory for Rheumatism and Immune Diagnosis (BZ0135), Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China
- Center of Clinical Immunology, Peking University, Beijing, China
- Department of Rheumatology and Immunology, Luohe Central Hospital, Luohe, China
| | - Gongming Li
- Beijing Key Laboratory for Rheumatism and Immune Diagnosis (BZ0135), Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China
- Center of Clinical Immunology, Peking University, Beijing, China
- Department of Rheumatology, Linyi Traditional Chinese Medicine Hospital, Linyi, China
| | - Hua Ye
- Beijing Key Laboratory for Rheumatism and Immune Diagnosis (BZ0135), Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China
- Center of Clinical Immunology, Peking University, Beijing, China
| | - Yunshan Zhou
- Beijing Key Laboratory for Rheumatism and Immune Diagnosis (BZ0135), Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China
- Center of Clinical Immunology, Peking University, Beijing, China
| | - Chang Hou
- Beijing Key Laboratory of Early Prediction and Intervention of Acute Myocardial Infarction, Department of Cardiology, Peking University People's Hospital, Beijing, China
| | - Lan Wang
- Beijing Key Laboratory of Early Prediction and Intervention of Acute Myocardial Infarction, Department of Cardiology, Peking University People's Hospital, Beijing, China
| | - Jianping Guo
- Beijing Key Laboratory for Rheumatism and Immune Diagnosis (BZ0135), Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China
- Center of Clinical Immunology, Peking University, Beijing, China
| | - Chun Li
- Beijing Key Laboratory for Rheumatism and Immune Diagnosis (BZ0135), Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China
- Center of Clinical Immunology, Peking University, Beijing, China
- *Correspondence: Chun Li
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Song GY, Zhao YW, Du GY, Chen Y, Wang MY, Teng SY, Luo T, Zhou Z, Niu GN, Zhao ZY, Lu ZN, Wu YJ. [Single center experience of transcatheter aortic valve replacement with a simplified operative protocol]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:563-569. [PMID: 35705465 DOI: 10.3760/cma.j.cn112148-20210728-00626] [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: 06/15/2023]
Abstract
Objective: To summarize the single center experience of transcatheter aortic valve replacement (TAVR) with a simplified operative protocol. Methods: Consecutive patients who underwent transfemoral TAVR (TF-TAVR) from July 2020 to December 2020 in Fuwai Hospital were retrospectively analyzed. We compared the baseline characteristic, procedure information, 30-day follow-up outcomes of the patients who underwent TF-TAVR without the simplified operative protocol (routine group) or with the simplified operative protocol (simplified protocol group). Results: 93 patients were collected, 42 patients belonging to routine group, 51 patients belonging to simplified protocol group. In simplified protocol group, there were 51 patients planned to use ultrasound-guided femoral access puncture, procedure was successful in all 51 patients (100%). There were 49 patients planned to use the radial artery as the secondary access, procedure was successful in 45 patients (92%). There were 48 patients planned to use the strategy of avoidance of urinary catheter, this strategy was achieved in 35 patients (73%). There were 12 patients planned to use the left ventricular guidewire to pace, procedure was successful in 11 patients (92%). There were no differences in baseline characteristics, major clinical endpoints and 30-day follow-up outcomes between the two groups. Meanwhile, the procedure time ((62.5±17.9)min vs. (78.3±16.7)min, P<0.001), operation room time ((133.7±25.1)min vs. (159.2±42.6)min, P<0.001), X-ray exposure time ((17.2±6.5)min vs. (20.2±7.7)min, P=0.027) were significantly shorten in simplified protocol group compared with the routine group. Conclusion: Our study results indicate that the simplified operative protocol of TF-TAVR is as effective and safe as the routine operative protocol, meanwhile using the simplified operative protocol can significantly increase the operative efficiency of TF-TAVR.
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Affiliation(s)
- G Y Song
- Coronary Artery Disease Center, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Y W Zhao
- Coronary Artery Disease Center, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - G Y Du
- Coronary Artery Disease Center, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Y Chen
- Coronary Artery Disease Center, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - M Y Wang
- Coronary Artery Disease Center, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - S Y Teng
- Coronary Artery Disease Center, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - T Luo
- Coronary Artery Disease Center, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Z Zhou
- Coronary Artery Disease Center, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - G N Niu
- Coronary Artery Disease Center, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Z Y Zhao
- Coronary Artery Disease Center, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Z N Lu
- Coronary Artery Disease Center, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Y J Wu
- Coronary Artery Disease Center, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
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Dai Y, Zhao YW, Ma L, Tang M, Qiu XP, Liu Y, Yuan Z, Zhou SM. Fourfold Anisotropic Magnetoresistance of L1_{0} FePt Due to Relaxation Time Anisotropy. Phys Rev Lett 2022; 128:247202. [PMID: 35776447 DOI: 10.1103/physrevlett.128.247202] [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] [Received: 01/05/2022] [Revised: 04/06/2022] [Accepted: 05/25/2022] [Indexed: 06/15/2023]
Abstract
Experimental measurements show that the angular dependence of the anisotropic magnetoresistance (AMR) in L1_{0} ordered FePt epitaxial films on the current orientation and magnetization direction is a superposition of the corresponding dependences of twofold and fourfold symmetries. The twofold AMR exhibits a strong dependence on the current orientation, whereas the fourfold term only depends on the magnetization direction in the crystal and is independent of the current orientation. First-principles calculations reveal that the fourfold AMR arises from the relaxation time anisotropy due to the variation of the density of states near the Fermi energy under rotation of the magnetization. This relaxation time anisotropy is a universal property in ferromagnetic metals and determines other anisotropic physical properties that are observable in experiment.
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Affiliation(s)
- Y Dai
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai 200092, China
| | - Y W Zhao
- Center for Advanced Quantum Studies and Department of Physics, Beijing Normal University, Beijing 100875, China
| | - L Ma
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai 200092, China
| | - M Tang
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai 200092, China
| | - X P Qiu
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai 200092, China
| | - Y Liu
- Center for Advanced Quantum Studies and Department of Physics, Beijing Normal University, Beijing 100875, China
| | - Z Yuan
- Center for Advanced Quantum Studies and Department of Physics, Beijing Normal University, Beijing 100875, China
| | - S M Zhou
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai 200092, China
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Liu J, Li D, Mei J, Wu L, Chen F, Liu Y, Lang X, Yuan G, Zhao Y. [Analysis of prescription and medication rules of traditional Chinese medicine in the treatment of the coronavirus disease 2019 based on traditional Chinese medicine inheritance support platform]. Zhonghua Wei Zhong Bing Ji Jiu Yi Xue 2022; 34:454-458. [PMID: 35728843 DOI: 10.3760/cma.j.cn121430-20210907-01342] [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: 06/15/2023]
Abstract
OBJECTIVE To analyze the rules of medication and principles of formulas for the treatment of coronavirus disease 2019 (COVID-19) using the traditional Chinese medicine inheritance support platform (V2.5). METHODS The clinical data, including gender, age, clinical symptoms, frequency of traditional Chinese medicine medication and prescription information, of patients with COVID-19 and asymptomatic infection who were admitted to Hebei COVID-19 designated hospital supported by medical team of First Affiliated Hospital of Hebei University of Chinese Medicine from January to March 2021 were collected. The information data were input into the traditional Chinese medicine inheritance support platform (V2.5). The data mining and analysis were realized by the integrated association rules and complex entropy clustering analysis methods of the software, including the analysis of the frequency of each drug use, drug meridian, taste, and prescription rules, and the new prescriptions were developed. RESULTS A total of 564 patients (564 prescriptions) were enrolled, involving 200 Chinese herbs, including 357 cases of common COVID-19 and 207 cases of asymptomatic infection. The proportion of women with common COVID-19 was high, and the high incidence age group was 51-70 years old. There was no significant difference in gender of asymptomatic infection, and the high incidence age group was 1-20 years old. The main clinical manifestations of most patients were head heavy and cough, followed by low fever and cough with sputum, the main tongue coating and pulse pattern were similar in both types of patients. The frequency of traditional Chinese medicine used in patients with common type of COVID-19 from high to low was liquorice root (326 times), indian bread (264 times), pinellia tuber (263 times), bitter apricot seed (236 times), baical skullcap root (229 times), gypsum (205 times), agastache rugosus (201 times), dried tangerine peel (194 times), ephedra (184 times), and Chinese thorowax root (163 times), while that used by asymptomatic infection were baical skullcap root (174 times), liquorice root (142 times), medicated leaven (137 times), agastache rugosus (127 times), pinellia tuber (114 times), Chinese thorowax root (100 times), officinal magnolia bark (91 times), atractylodes rhizome (89 times), peony root (84 times), and milkvetch root (83 times). The two types of patients were mainly treated with warm, cold and flat drugs, and the nature and taste were mainly pungent, bitter and sweet. The meridian tropism of drugs was mainly lung, spleen and stomach. High frequency drug formulation mainly included drugs for resolving turbidity and detoxification. At the same time, seven new prescriptions for common COVID-19 and four new prescriptions for asymptomatic infection were developed. CONCLUSIONS The primary reason for the COVID-19 occurrence and development is turbidity-toxin and the qi of plague, and resolving turbidity and detoxication are the basic treating principle. On the basis, for patients with common COVID-19, symptomatic treatment such as relieving exterior syndrome, clearing heat, resolving phlegm, and antitussive drugs should be taken into account at the same time, while the treatment of asymptomatic infections should focus more on supporting the body and eliminating the harmful pathogens.
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Affiliation(s)
- Jiao Liu
- Second Department of Tumor, First Affiliated Hospital of Hebei University of Chinese Medicine, Shijiazhuang 050011, Hebei, China
- Graduate School of Hebei University of Chinese Medicine, Shijiazhuang 050091, Hebei, China
| | - Dehui Li
- Second Department of Tumor, First Affiliated Hospital of Hebei University of Chinese Medicine, Shijiazhuang 050011, Hebei, China
| | - Jianqiang Mei
- Department of Emergency, First Affiliated Hospital of Hebei University of Chinese Medicine, Shijiazhuang 050011, Hebei, China
| | - Lei Wu
- Second Department of Respiratory, First Affiliated Hospital of Hebei University of Chinese Medicine, Shijiazhuang 050011, Hebei, China
| | - Fenqiao Chen
- Department of Emergency, First Affiliated Hospital of Hebei University of Chinese Medicine, Shijiazhuang 050011, Hebei, China
| | - Yuan Liu
- Department of Critical Care Medicine, First Affiliated Hospital of Hebei University of Chinese Medicine, Shijiazhuang 050011, Hebei, China
| | - Xiaomen Lang
- First Department of Spleen and Stomach, First Affiliated Hospital of Hebei University of Chinese Medicine, Shijiazhuang 050011, Hebei, China
| | - Guodong Yuan
- First Department of Nephrology, First Affiliated Hospital of Hebei University of Chinese Medicine, Shijiazhuang 050011, Hebei, China
| | - Yawei Zhao
- Department of Encephalopathy, First Affiliated Hospital of Hebei University of Chinese Medicine, Shijiazhuang 050011, Hebei, China. Corresponding author: Mei Jianqiang,
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Wang L, Huang W, Shen Y, Zhao Y, Wu D, Yin H, Yang S, Yuan Q, Liang W, Wang J. Enhancing the degradation of Aflatoxin B 1 by co-cultivation of two fungi strains with the improved production of detoxifying enzymes. Food Chem 2022; 371:131092. [PMID: 34543924 DOI: 10.1016/j.foodchem.2021.131092] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 09/02/2021] [Accepted: 09/06/2021] [Indexed: 01/08/2023]
Abstract
After the co-culture of Aspergillus niger and Pleurotus ostreatus, the obtained extracellular crude enzymes solution was employed to aflatoxin B1 (AFB1) degradation. The maximum AFB1 degradation with co-culture reached 93.4%, which increased by 65.9% and 37.6%, respectively, compared with those of the mono-culture of Pleurotus ostreatus and Aspergillus niger. The molecular weight of the key detoxifying enzymes isolated by ultrafiltration was 58 and 63 kDa by SDS-PAGE analysis. The purified detoxifying enzymes had a high detoxification effect on AFB1 with the degradation rate of 94.7%. It was found that the co-culture of Pleurotus ostreatus and Aspergillus niger promoted the production of 58 and 63 kDa detoxifying enzymes to enhance the AFB1 degradation. The chemical structure of major degradation products of AFB1 by the mixed cultures were preliminarily identified by LC-Triple TOF MS. Two pathways of AFB1 degradation were inferred with the high potential of fungal co-cultivations for AFB1 detoxification applications.
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Affiliation(s)
- Le Wang
- College of Biological Engineering, National Engineering Laboratory for Wheat & Corn Further Processing, Henan University of Technology, 450001 Zhengzhou, China
| | - Wei Huang
- College of Biological Engineering, National Engineering Laboratory for Wheat & Corn Further Processing, Henan University of Technology, 450001 Zhengzhou, China
| | - Yan Shen
- College of Biological Engineering, National Engineering Laboratory for Wheat & Corn Further Processing, Henan University of Technology, 450001 Zhengzhou, China
| | - Yawei Zhao
- College of Biological Engineering, National Engineering Laboratory for Wheat & Corn Further Processing, Henan University of Technology, 450001 Zhengzhou, China
| | - Dapeng Wu
- School of Environment, Henan Normal University, 453001 Xinxiang, China.
| | - Haicheng Yin
- College of Biological Engineering, National Engineering Laboratory for Wheat & Corn Further Processing, Henan University of Technology, 450001 Zhengzhou, China
| | - Shuoye Yang
- College of Biological Engineering, National Engineering Laboratory for Wheat & Corn Further Processing, Henan University of Technology, 450001 Zhengzhou, China
| | - Qipeng Yuan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Wenhui Liang
- College of Biological Engineering, National Engineering Laboratory for Wheat & Corn Further Processing, Henan University of Technology, 450001 Zhengzhou, China
| | - Jinshui Wang
- College of Biological Engineering, National Engineering Laboratory for Wheat & Corn Further Processing, Henan University of Technology, 450001 Zhengzhou, China.
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Zhao Y, Wei X, Chong J, Diao L. SAR Imaging Algorithm of Ocean Waves Based on Optimum Subaperture. Sensors (Basel) 2022; 22:1299. [PMID: 35162044 PMCID: PMC8840356 DOI: 10.3390/s22031299] [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] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/03/2022] [Accepted: 02/05/2022] [Indexed: 06/14/2023]
Abstract
Synthetic Aperture Radar (SAR) is widely applied to the field of ocean remote sensing. Clear SAR images are the basis for ocean information acquisitions, such as parameter retrieval of ocean waves and wind field inversion of the ocean surface. However, the SAR ocean images are usually blurred, which seriously affects the acquisition of ocean information. The reasons for the wave blurring in SAR images mainly include the following two aspects. One is that when SAR observes the ocean, the motion of ocean waves will have a greater impact on imaging quality. The other is that the ocean's surface is seriously decorrelated within the integration time. In order to obtain clear SAR images of ocean waves, a SAR imaging algorithm of ocean waves based on the optimum subaperture is proposed, aiming at the above two aspects. The optimum focus setting of the ocean waves is calculated, drawing support from the azimuth phase velocity of the dominant wave. The optimum subaperture is further calculated according to the proposed new evaluation, namely, F. Finally, according to the optimum focus setting and the optimum subaperture, the dominant wave is refocused, and a clear SAR image of the dominant wave can be obtained. The proposed algorithm was applied to airborne L-band and P-band SAR data. Furthermore, the proposed algorithm was compared with present methods, and the results sufficiently demonstrated the effectiveness and superiority of the proposed algorithm.
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Affiliation(s)
- Yawei Zhao
- National Key Lab of Microwave Imaging Technology, Beijing 100190, China; (Y.Z.); (X.W.); (L.D.)
- Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronics, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xianen Wei
- National Key Lab of Microwave Imaging Technology, Beijing 100190, China; (Y.Z.); (X.W.); (L.D.)
- Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronics, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jinsong Chong
- National Key Lab of Microwave Imaging Technology, Beijing 100190, China; (Y.Z.); (X.W.); (L.D.)
- Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronics, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lijie Diao
- National Key Lab of Microwave Imaging Technology, Beijing 100190, China; (Y.Z.); (X.W.); (L.D.)
- Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronics, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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Wang X, Jin S, Gou C, Hu L, Zhang J, Li F, Zhai D, Zhao Y, Huang J, Hui M. Extraction optimization and functional properties of corn germ meal albumin protein as a potential source of novel food ingredients. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Xin Wang
- College of Biological Engineering Henan University of Technology Zhengzhou China
| | - Shangping Jin
- College of Biological Engineering Henan University of Technology Zhengzhou China
| | - Chenchen Gou
- College of Biological Engineering Henan University of Technology Zhengzhou China
| | - Lipan Hu
- College of Biology and Food Engineering Chongqing Three Gorges University Chongqing China
| | - Jinming Zhang
- College of Biological Engineering Henan University of Technology Zhengzhou China
| | - Fei Li
- College of Biological Engineering Henan University of Technology Zhengzhou China
| | - Dandan Zhai
- College of Biological Engineering Henan University of Technology Zhengzhou China
| | - Yawei Zhao
- College of Biological Engineering Henan University of Technology Zhengzhou China
| | - Jihong Huang
- College of Biological Engineering Henan University of Technology Zhengzhou China
| | - Ming Hui
- College of Biological Engineering Henan University of Technology Zhengzhou China
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Shi C, Dawulieti J, Shi F, Yang C, Qin Q, Shi T, Wang L, Hu H, Sun M, Ren L, Chen F, Zhao Y, Liu F, Li M, Mu L, Liu D, Shao D, Leong KW, She J. A nanoparticulate dual scavenger for targeted therapy of inflammatory bowel disease. Sci Adv 2022; 8:eabj2372. [PMID: 35089791 PMCID: PMC8797786 DOI: 10.1126/sciadv.abj2372] [Citation(s) in RCA: 65] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
A therapeutic strategy that targets multiple proinflammatory factors in inflammatory bowel disease (IBD) with minimal systemic side effects would be attractive. Here, we develop a drug-free, biodegradable nanomedicine that acts against IBD by scavenging proinflammatory cell-free DNA (cfDNA) and reactive oxygen species (ROS). Polyethylenimine (PEI) was conjugated to antioxidative diselenide-bridged mesoporous organosilica nanoparticles (MONs) to formulate nanoparticles (MON-PEI) that exhibited high cfDNA binding affinity and ROS-responsive degradation. In ulcerative colitis and Crohn's disease mouse colitis models, orally administered MON-PEI accumulated preferentially in the inflamed colon and attenuated colonic and peritoneal inflammation by alleviating cfDNA- and ROS-mediated inflammatory responses, allowing a reduced dose frequency and ameliorating colitis even after delayed treatment. This work suggests a new nanomedicine strategy for IBD treatment.
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Affiliation(s)
- Chengxin Shi
- Department of General Surgery, First Affiliated Hospital, Xi’an Jiaotong University, Xi’an 710061, China
| | - Jianati Dawulieti
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, Guangdong 511442, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China
| | - Feiyu Shi
- Department of General Surgery, First Affiliated Hospital, Xi’an Jiaotong University, Xi’an 710061, China
- Center for Gut Microbiome Research, Med-X Institute, The First Affiliated Hospital of Xi’an Jiao tong University, Xi’an, Shaanxi, China
- Department of High Talent, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Chao Yang
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, Guangdong 511442, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - Qian Qin
- Department of General Surgery, First Affiliated Hospital, Xi’an Jiaotong University, Xi’an 710061, China
- Center for Gut Microbiome Research, Med-X Institute, The First Affiliated Hospital of Xi’an Jiao tong University, Xi’an, Shaanxi, China
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - Tongfei Shi
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, Guangdong 511442, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China
| | - Lizhao Wang
- Department of General Surgery, First Affiliated Hospital, Xi’an Jiaotong University, Xi’an 710061, China
- Center for Gut Microbiome Research, Med-X Institute, The First Affiliated Hospital of Xi’an Jiao tong University, Xi’an, Shaanxi, China
- Department of High Talent, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Hanze Hu
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - Madi Sun
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, Guangdong 511442, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China
| | - Li Ren
- Department of Gastroenterology, First Affiliated Hospital, Xi’an Jiaotong University, Xi’an, 710061, China
| | - Fangman Chen
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, Guangdong 511442, China
| | - Yawei Zhao
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, Guangdong 511442, China
| | - Feng Liu
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Lijun Mu
- Department of General Surgery, First Affiliated Hospital, Xi’an Jiaotong University, Xi’an 710061, China
- Center for Gut Microbiome Research, Med-X Institute, The First Affiliated Hospital of Xi’an Jiao tong University, Xi’an, Shaanxi, China
- Department of High Talent, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Dan Liu
- Department of General Surgery, First Affiliated Hospital, Xi’an Jiaotong University, Xi’an 710061, China
- Center for Gut Microbiome Research, Med-X Institute, The First Affiliated Hospital of Xi’an Jiao tong University, Xi’an, Shaanxi, China
- Department of High Talent, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Dan Shao
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, Guangdong 511442, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China
- Institutes of Life Sciences, School of Medicine, South China University of Technology,Guangzhou, Guangdong 510006, China
- Corresponding author. (D.S.); (J.S.); (K.W.L.)
| | - Kam W. Leong
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
- Department of Systems Biology, Columbia University Medical Center, New York, NY 10032, USA
- Corresponding author. (D.S.); (J.S.); (K.W.L.)
| | - Junjun She
- Department of General Surgery, First Affiliated Hospital, Xi’an Jiaotong University, Xi’an 710061, China
- Center for Gut Microbiome Research, Med-X Institute, The First Affiliated Hospital of Xi’an Jiao tong University, Xi’an, Shaanxi, China
- Department of High Talent, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Corresponding author. (D.S.); (J.S.); (K.W.L.)
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Liu YD, Zheng Q, Wang XY, Zhao YW, Ni GJ, Ni X, Liu HH. [Study on the feature of cortical auditory evoked potential under different auditory tasks in cochlear implant children]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2021; 56:943-950. [PMID: 34666442 DOI: 10.3760/cma.j.cn115330-20201109-00857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the variation regularity and influencing factors of cortical auditory evoked potential (CAEP) evoked by pure tone, syllable and tone stimuli in cochlear implant (CI) children. Methods: Cortical auditory evoked potential (CAEP) responses were collected from 46 CI children in the sound field. Pure tones with frequencies of 1 kHz and 2 kHz were used as the standard and the deviant respectively in the pure tone stimulation condition. The Chinese Mandarin tokens/ba/-/pa/and/ba1/-/ba4/pairs were used as the stimuli respectively in the syllable and tone stimulation condition. The latency, amplitude and presence rate of P1 and mismatch negative(MMN) were obtained and the correlation between the difficulty of auditory task, the age of hearing month, the duration of severe-profound hearing loss, the wearing history of hearing aid before CI, the hearing threshold of the better ear before CI and the latency and amplitude of P1 and MMN were analyzed. All statistical analyses and figures were conducted using SPSS 25.0. Results: The P1 presence rate of pure tone, syllable and tone group was 100% (17/17), 100% (13/13) and 75.0% (12/16), respectively, with significant difference (χ²=8.214, P=0.016). There was significant difference between pure tone group and tone group (χ²=4.836, P=0.028), but no significant difference between pure tone group and syllable group, syllable group and tone group. The MMN presence rate of pure tone, syllable and tone group was 94.1% (16/17), 84.6% (11/13) and 62.5% (10/16), respectively, but no significant difference among the three groups with different auditory tasks(χ²=0.066, P=0.066). No significant difference was observed among the three groups of different auditory tasks in the latency and amplitude of P1 and MMN. Multiple linear regression analysis showed that the latency of P1 was positively correlated with the difficulty of auditory task and the hearing threshold of the better ear before CI, and negatively correlated with hearing age and the history of hearing aid before CI. The latency of MMN was positively correlated with the difficulty of auditory task, and negatively correlated with hearing age. Conclusions: The P1 presence rate of pure tone auditory task is significantly higher than that of tone auditory task. The difficulty of auditory task, hearing age, the history of hearing aid before CI, and the hearing threshold of the better ear before CI has significant effects on the P1 latency. The difficulty of auditory task and hearing age has significant effects on the MMN latency.
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Affiliation(s)
- Y D Liu
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology Head and Neck Surgery, Department of Otolaryngology Head and Neck Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Q Zheng
- Lab of Neural Engineering & Rehabilitation, Department of Biomedical Engineering, College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China
| | - X Y Wang
- Big Data Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Y W Zhao
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology Head and Neck Surgery, Department of Otolaryngology Head and Neck Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - G J Ni
- Lab of Neural Engineering & Rehabilitation, Department of Biomedical Engineering, College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin 300072, China
| | - X Ni
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology Head and Neck Surgery, Department of Otolaryngology Head and Neck Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - H H Liu
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, Ministry of Education (MOE), Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children s Health, Beijing 100045, China
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Abstract
Abstract
Study question
To investigate the different metabolomic profiling in serum between pregnant and non-pregnant women during early implantation period.
Summary answer
Metabolomics of progesterone-related hormones enhances from ET day3 for pregnancy women compared with non-pregnancy women.
What is known already
Metabolomics is based on high-throughput analytical methods to identify and quantify metabolites. Compared to other omics study, metabolomics is the closest one to the phenotype, allowing the observation of dynamic changes in phenotype at specific timepoints. So far there is no published work about the metabolomics profile in human early implantation period. Study design, size, duration: Study design: comparative study. Size: 14 pregnancy women and 14 non-pregnancy women. duration: time-course.
Participants/materials, setting, methods
Participants: pregnancy women and unpregnancy women after embryo transfer (ET). Setting: university-based study. Methods: Peripheral blood were collected at ET day0, 3, 6 and 9. metabolomic profiling in serum by platforms of capillary electrophoresis-mass spectrometry (CE-MS) and liquid chromatography–mass spectrometry (LC-MS).
Main results and the role of chance
There were no statistical difference of the age, BMI, basal FSH level, endometrium thickness on the day of embryo transfer, distribution of primary and secondary fertility, embryo transfer cycle as well as the infertile types between the two groups. After deleting those with over 50% missing data, we finally have 310 metabolites into statistical analysis. Among the 310 metabolite, lipid metabolites account the largest percentage, nearly half of all metabolites. The second biggest class of metabolites in our data was organic acids. Combined results in repeated measurement ANOVA (RM-ANOVA) and ANOVA-simultaneous component analysis (ASCA) as well as multivariate empirical Bayes time-series analysis (MEBA), we finally found that progesterone-related hormones were the most important metabolites for the whole time-series data. Those significant metabolites showed a significant down regulation from ET day0 to ET day3 and up regulation from ET day3 to ET day9.
Limitations, reasons for caution
we have limited sample size for this study and further validation is necessary for confirmation.
Wider implications of the findings: The phenomenon of upregulation of progesterone-related hormones from day3 in pregnancy group might be related to the embryo-originated hcg. Because the embryo has entered into endometrium at day3 and produced cytokines, hcg and other interaction with endometrium.
Trial registration number
NA
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Affiliation(s)
- Y Zhang
- Chinese University of Hong Kong, Department of Obstetrics and Gynecology, Hong Kong, China
| | - Y W Zhao
- Chinese University of Hong Kong, Department of Obstetrics and Gynecology, Hong Kong, China
| | - C C Wang
- Chinese University of Hong Kong, Department of Obstetrics and Gynecology, Hong Kong, China
| | - T C Li
- Chinese University of Hong Kong, Department of Obstetrics and Gynecology, Hong Kong, China
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41
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Kan YZ, Gou XN, Zhao YW, Liu QY, Guo Y, Fu FF, Gong YB, Kong LF. [Port-wine stains and Sturge-Weber syndrome: clinicopathological analysis and molecular characterization]. Zhonghua Bing Li Xue Za Zhi 2021; 50:802-804. [PMID: 34405619 DOI: 10.3760/cma.j.cn112151-20210425-00316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Y Z Kan
- Department of Pathology, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - X N Gou
- Department of Pathology, the First Medical Center of PLA General Hospital, Beijing 100853, China
| | - Y W Zhao
- Department of Pathology, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - Q Y Liu
- Department of Pathology, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - Y Guo
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - F F Fu
- Department of Image, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - Y B Gong
- Department of Hemangioma, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - L F Kong
- Department of Pathology, Henan Provincial People's Hospital, Zhengzhou 450003, China
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42
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Zhao YW, Zhang H, Zhang XL. [Inflammatory bowel disease related pulmonary manifestations]. Zhonghua Nei Ke Za Zhi 2021; 60:269-273. [PMID: 33663181 DOI: 10.3760/cma.j.cn112138-20200411-00361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
- Y W Zhao
- Department of Gastroentology, the Second Hospital of Hebei Medical University, Shijiazhuang 050035, China Hebei Medical University, Shijiazhuang 050017, China
| | - H Zhang
- Department of Gastroentology, the Second Hospital of Hebei Medical University, Shijiazhuang 050035, China
| | - X L Zhang
- Department of Gastroentology, the Second Hospital of Hebei Medical University, Shijiazhuang 050035, China
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Zheng X, Zhao Y, Jia Y, Shao D, Zhang F, Sun M, Dawulieti J, Hu H, Cui L, Pan Y, Yang C, Sun W, Zhang S, He K, Li J, Du J, Zhang M, Chen L. Biomimetic co-assembled nanodrug of doxorubicin and berberine suppresses chemotherapy-exacerbated breast cancer metastasis. Biomaterials 2021; 271:120716. [PMID: 33621894 DOI: 10.1016/j.biomaterials.2021.120716] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 02/03/2021] [Accepted: 02/10/2021] [Indexed: 12/20/2022]
Abstract
Chemotherapy is a major approach for treating breast cancer patients. Paradoxically, it can also induce cancer progression. Understanding post-chemotherapy metastasis mechanism will help the development of new therapeutic strategies to ameliorate chemotherapy-induced cancer progression. In this study, we deciphered the role of HMGB1 in the regulation of TLR4-mediated epithelial to mesenchymal transitions (EMT) process on doxorubicin (Dox)-treated 4T1 breast cancer cells. Berberine (Ber), a clinically approved alkaloid has been demonstrated as an HMGB1-TLR4 axis regulator to Dox-exacerbated breast cancer metastasis in vitro and in vivo. Hypothesizing that combination of Dox and Ber would be beneficial for breast cancer chemotherapy, we engineered self-assembled nanodrug (DBNP) consisting of Dox and Ber without the aid of additional carriers. After cloaking with 4T1 cell membranes, DBNP@CM exhibited higher accumulation at tumor sites and prolonged blood circulation time in 4T1 orthotopic tumor-bearing mice than DBNP. Importantly, DBNP@CM not only effectively inhibited tumor growth with fewer side effects, but also remarkably suppressed pulmonary metastasis via blocking HMGB1-TLR4 axis. Together, our results have provided a promising combination strategy to dampen chemotherapy-exacerbated breast cancer metastasis and shed light on the development of biomimetic nanodrug for efficient and safe breast cancer chemotherapy.
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Affiliation(s)
- Xiao Zheng
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences and School of Nursing, Jilin University, Changchun, 130021, China; Institutes for Life Sciences, School of Biomedical Sciences and Engineering, Guangzhou International Campus, National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510630, China
| | - Yawei Zhao
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences and School of Nursing, Jilin University, Changchun, 130021, China
| | - Yong Jia
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences and School of Nursing, Jilin University, Changchun, 130021, China
| | - Dan Shao
- Institutes for Life Sciences, School of Biomedical Sciences and Engineering, Guangzhou International Campus, National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510630, China; Department of Biomedical Engineering, Columbia University, New York, NY, 10027, USA.
| | - Fan Zhang
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences and School of Nursing, Jilin University, Changchun, 130021, China; Institutes for Life Sciences, School of Biomedical Sciences and Engineering, Guangzhou International Campus, National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510630, China
| | - Madi Sun
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences and School of Nursing, Jilin University, Changchun, 130021, China; Institutes for Life Sciences, School of Biomedical Sciences and Engineering, Guangzhou International Campus, National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510630, China
| | - Jianati Dawulieti
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences and School of Nursing, Jilin University, Changchun, 130021, China; Institutes for Life Sciences, School of Biomedical Sciences and Engineering, Guangzhou International Campus, National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510630, China
| | - Hanze Hu
- Department of Biomedical Engineering, Columbia University, New York, NY, 10027, USA
| | - Lianzhi Cui
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences and School of Nursing, Jilin University, Changchun, 130021, China; Clinical Laboratory, Jilin Cancer Hospital, Changchun, 130012, China
| | - Yue Pan
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Chao Yang
- Institutes for Life Sciences, School of Biomedical Sciences and Engineering, Guangzhou International Campus, National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510630, China; Department of Biomedical Engineering, Columbia University, New York, NY, 10027, USA.
| | - Wen Sun
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Shuang Zhang
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences and School of Nursing, Jilin University, Changchun, 130021, China
| | - Kan He
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences and School of Nursing, Jilin University, Changchun, 130021, China
| | - Jing Li
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences and School of Nursing, Jilin University, Changchun, 130021, China
| | - Jinzhi Du
- Institutes for Life Sciences, School of Biomedical Sciences and Engineering, Guangzhou International Campus, National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510630, China
| | - Ming Zhang
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences and School of Nursing, Jilin University, Changchun, 130021, China.
| | - Li Chen
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences and School of Nursing, Jilin University, Changchun, 130021, China.
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Wu W, Zhao Y, Zhu E, Liu X, Zhang X, Luo L, Wang S, Yin J. A Theoretical Revisit to Linear Convergence for Saddle Point Problems. ACM T INTEL SYST TEC 2021. [DOI: 10.1145/3420035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Recently, convex-concave bilinear Saddle Point Problems (SPP) is widely used in lasso problems, Support Vector Machines, game theory, and so on. Previous researches have proposed many methods to solve SPP, and present their convergence rate theoretically. To achieve linear convergence, analysis in those previouse studies requires strong convexity of φ(
z
). But, we find the linear convergence can also be achieved even for a general convex but not strongly convex φ(
z
). In the article, by exploiting the strong duality of SPP, we propose a new method to solve SPP, and achieve the linear convergence. We present a new general sufficient condition to achieve linear convergence, but do not require the strong convexity of φ(
z
). Furthermore, a more efficient method is also proposed, and its convergence rate is analyzed in theoretical. Our analysis shows that the well conditioned φ(
z
) is necessary to improve the efficiency of our method. Finally, we conduct extensive empirical studies to evaluate the convergence performance of our methods.
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Affiliation(s)
- Wendi Wu
- State Key Laboratory of High Performance Computing, National University of Defense Technology, Changsha, Hunan, China
| | - Yawei Zhao
- China Electronic Equipment System Engineering Company, Beijing, China
| | - En Zhu
- School of Computer, National University of Defense Technology, Changsha, Hunan, China
| | - Xinwang Liu
- School of Computer, National University of Defense Technology, Changsha, Hunan, China
| | - Xingxing Zhang
- Institute of Information Science, and Beijing Key Laboratory of Advanced Information Science and Network Technology, Beijing Jiaotong University, Beijing, China
| | - Lailong Luo
- Science and Technology on Information Systems Engineering Laboratory, National University of Defense Technology, Changsha, Hunan, China
| | - Shixiong Wang
- Artificial Intelligence Research Center, National Innovation Institute of Defense Technology, Beijing, China
| | - Jianping Yin
- Department of Software Engineering, Dongguan University of Technology, Dongguan, Guangdong, China
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Zhao Y, Yang X, Zhao J, Gao M, Zhang M, Shi T, Zhang F, Zheng X, Pan Y, Shao D, Li J, He K, Chen L. Berberine inhibits chemotherapy-exacerbated ovarian cancer stem cell-like characteristics and metastasis through GLI1. Eur J Pharmacol 2021; 895:173887. [PMID: 33482182 DOI: 10.1016/j.ejphar.2021.173887] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 01/12/2021] [Accepted: 01/14/2021] [Indexed: 12/27/2022]
Abstract
Despite the remarkable clinical response in ovarian cancer therapy, the distinctively high metastasis rate is still a barrier to achieve satisfying prognosis. Our study aimed to decipher the role of berberine in inhibiting chemotherapy-exacerbated ovarian cancer metastasis. We found that chemotherapy exacerbated the migration and cancer stem cell (CSC)-like characteristics through transcriptional factor GLI1, which regulated the pluripotency-associated gene BMI1 and the epithelial-mesenchymal transition (EMT) markers Vimentin and Snail. Berberine could not only down-regulate CSC-like characteristics but also reverse EMT and migration through inhibiting chemotherapy-activated GLI1/BMI1 signaling pathway. Together, our study revealed the pivotal role of berberine in overcoming chemotherapy-exacerbated ovarian cancer metastasis, thereby provided a potential adjuvant therapeutic agent in combination with chemotherapeutics to prevent metastasis during ovarian cancer chemotherapy.
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Affiliation(s)
- Yawei Zhao
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Xuehan Yang
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Jingtong Zhao
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Mohan Gao
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Min Zhang
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Tongfei Shi
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Fan Zhang
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Xiao Zheng
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Yue Pan
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Dan Shao
- Institutes of Life Sciences, School of Biomedical Sciences and Engineering and National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou International Campus, Guangzhou, Guangdong 510006, People's Republic of China
| | - Jing Li
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Kan He
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China.
| | - Li Chen
- Department of Pharmacology, Nanomedicine Engineering Laboratory of Jilin Province, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China; School of Nursing, Jilin University, Changchun 130021, People's Republic of China.
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Li Q, Wu M, Wen Z, Jiang Y, Wang X, Zhao Y, Liu J, Yang J, Jiang Y, Yang S. Optimization of n-butanol synthesis in Lactobacillus brevis via the functional expression of thl, hbd, crt and ter. ACTA ACUST UNITED AC 2020; 47:1099-1108. [DOI: 10.1007/s10295-020-02331-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 11/02/2020] [Indexed: 12/15/2022]
Abstract
Abstract
N-butanol is an important chemical and can be naturally synthesized by Clostridium species; however, the poor n-butanol tolerance of Clostridium impedes the further improvement in titer. In this study, Lactobacillus brevis, which possesses a higher butanol tolerance, was selected as host for heterologous butanol production. The Clostridium acetobutylicum genes thl, hbd, and crt which encode thiolase, β-hydroxybutyryl-CoA dehydrogenase, and crotonase, and the Treponema denticola gene ter, which encodes trans-enoyl-CoA reductase were cloned into a single plasmid to express the butanol synthesis pathway in L. brevis. A titer of 40 mg/L n-butanol was initially achieved with plasmid pLY15-opt, in which all pathway genes are codon-optimized. A titer of 450 mg/L of n-butanol was then synthesized when ter was further overexpressed in this pathway. The role of metabolic flux was reinforced with pLY15, in which only the ter gene was codon-optimized, which greatly increased the n-butanol titer to 817 mg/L. Our strategy significantly improved n-butanol synthesis in L. brevis and the final titer is the highest achieved amongst butanol-tolerant lactic acid bacteria.
Graphic abstract
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Affiliation(s)
- Qi Li
- grid.412600.1 0000 0000 9479 9538 College of Life Sciences Sichuan Normal University 610101 Chengdu China
- grid.9227.e 0000000119573309 Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences Chinese Academy of Sciences 200032 Shanghai China
| | - Meixian Wu
- grid.9227.e 0000000119573309 Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences Chinese Academy of Sciences 200032 Shanghai China
| | - Zhiqiang Wen
- grid.9227.e 0000000119573309 Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences Chinese Academy of Sciences 200032 Shanghai China
| | - Yuan Jiang
- grid.9227.e 0000000119573309 Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences Chinese Academy of Sciences 200032 Shanghai China
| | - Xin Wang
- grid.9227.e 0000000119573309 Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences Chinese Academy of Sciences 200032 Shanghai China
| | - Yawei Zhao
- grid.9227.e 0000000119573309 Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences Chinese Academy of Sciences 200032 Shanghai China
| | - Jinle Liu
- grid.9227.e 0000000119573309 Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences Chinese Academy of Sciences 200032 Shanghai China
| | - Junjie Yang
- grid.9227.e 0000000119573309 Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences Chinese Academy of Sciences 200032 Shanghai China
| | - Yu Jiang
- grid.419092.7 0000 0004 0467 2285 Huzhou Center of Industrial Biotechnology Shanghai Institutes for Biological Sciences 313000 Huzhou China
| | - Sheng Yang
- grid.9227.e 0000000119573309 Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences Chinese Academy of Sciences 200032 Shanghai China
- grid.419092.7 0000 0004 0467 2285 Huzhou Center of Industrial Biotechnology Shanghai Institutes for Biological Sciences 313000 Huzhou China
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Feng X, Jia Y, Cao X, Ji T, Zhao Y, Tian H, Li N, Cheng Z, Chen L. Morita therapy for schizophrenia: An updated meta-analysis. Asian J Psychiatr 2020; 53:102169. [PMID: 32446215 DOI: 10.1016/j.ajp.2020.102169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 05/10/2020] [Accepted: 05/11/2020] [Indexed: 01/07/2023]
Abstract
Morita therapy was developed for common mental problems, and our aim was to evaluate the clinical effect of Morita therapy on schizophrenia. The literature was searched in 10 databases, namely, PubMed, Chinese National Knowledge Infrastructure (CNKI), Sinomed, Wanfang, Cochrane Library, UpToDate, Web of Science, Medline, PsycINFO and Embase, from inception to September 4, 2019. Random-effects models were used. For continuous results, the standardized mean differences (SMDs) and 95% confidence intervals (CIs) were calculated to synthesize the effects. Thirty studies were included, with a total of 2651 patients with schizophrenia. Compared to pharmacotherapy alone and standard care alone, Morita therapy plus pharmacotherapy and Morita therapy plus standard care both had significant effects on mental state (pooled effect size = -1.09, 95% CI: -0.35, -0.83), social functioning (pooled effect size = -0.61, 95% CI: -2.30, -0.92) and behavior (pooled effect size = 1.13, 95% CI: 0.75, 1.51). Significant heterogeneity between studies was found for mental state (I2 = 89%, p < 0.05) and social functioning (I2 = 95%, p < 0.05), but no heterogeneity was found for behavior (I2 = 0%, p = 0.84). Morita therapy has positive effects on mental state and social functioning among patients with schizophrenia, but it leads to some problems with behavior among these patients. Most included studies have unclear bias, and the forest plots show high heterogeneity among the results. Thus, Morita therapy cannot be implemented in clinical practice as a feasible strategy, the conclusion has yet to be confirmed, and new trials and future studies are desired.
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Affiliation(s)
- Xuezhu Feng
- School of Nursing, Jilin University, NO.965 Xinjiang Street, Changchun, 130021, China
| | - Yong Jia
- School of Nursing, Jilin University, NO.965 Xinjiang Street, Changchun, 130021, China
| | - Xuelian Cao
- School of Nursing, Jilin University, NO.965 Xinjiang Street, Changchun, 130021, China
| | - Tianyi Ji
- College of Pharmacy, Jilin University, No. 965 Xinjiang Street Changchun, 130021, China
| | - Yawei Zhao
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
| | - Huimin Tian
- School of Nursing, Jilin University, NO.965 Xinjiang Street, Changchun, 130021, China
| | - Na Li
- Laboratory of Molecular Pharmacology, Jilin Provincial Key Laboratory of BioMacromolecules of Chinese Medicine, Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130117, Jilin, China
| | - Zhaohua Cheng
- Hepatobiliary and Pancreatic Surgery Department, The Second Hospital Jilin University, Changchun, China.
| | - Li Chen
- School of Nursing, Jilin University, NO.965 Xinjiang Street, Changchun, 130021, China; Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China.
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48
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Zhao Y, Tian J, Zheng G, Chen J, Sun C, Yang Z, Zimin AA, Jiang W, Deng Z, Wang Z, Lu Y. Multiplex genome editing using a dCas9-cytidine deaminase fusion in Streptomyces. Sci China Life Sci 2020; 63:1053-1062. [PMID: 31872379 DOI: 10.1007/s11427-019-1559-y] [Citation(s) in RCA: 24] [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] [Received: 08/10/2019] [Accepted: 09/27/2019] [Indexed: 01/19/2023]
Abstract
CRISPR/Cas-mediated genome editing has greatly facilitated the study of gene function in Streptomyces. However, it could not be efficiently employed in streptomycetes with low homologous recombination (HR) ability. Here, a deaminase-assisted base editor dCas9-CDA-ULstr was developed in Streptomyces, which comprises the nuclease-deficient Cas9 (dCas9), the cytidine deaminase from Petromyzon marinus (PmCDA1), the uracil DNA glycosylase inhibitor (UGI) and the protein degradation tag (LVA tag). Using dCas9-CDA-ULstr, we achieved single-, double- and triple-point mutations (cytosine-to-thymine substitutions) at target sites in Streptomyces coelicolor with efficiency up to 100%, 60% and 20%, respectively. This base editor was also demonstrated to be highly efficient for base editing in the industrial strain, Streptomyces rapamycinicus, which produces the immunosuppressive agent rapamycin. Compared with base editors derived from the cytidine deaminase rAPOBEC1, the PmCDA1-assisted base editor dCas9-CDA-ULstr could edit cytosines preceded by guanosines with high efficiency, which is a great advantage for editing Streptomyces genomes (with high GC content). Collectively, the base editor dCas9-CDA-ULstr could be employed for efficient multiplex genome editing in Streptomyces. Since the dCas9-CDA-ULstr-based genome editing is independent of HR-mediated DNA repair, we believe this technology will greatly facilitate functional genome research and metabolic engineering in Streptomyces strains with weak HR ability.
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Affiliation(s)
- Yawei Zhao
- College of Life Sciences, Shanghai Normal University, Shanghai, 200234, China.,State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Jinzhong Tian
- Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Guosong Zheng
- Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Jun Chen
- College of Life Sciences, Shanghai Normal University, Shanghai, 200234, China
| | - Chuanwen Sun
- College of Life Sciences, Shanghai Normal University, Shanghai, 200234, China
| | - Zhongyi Yang
- School of Life Science, Taizhou University, Taizhou, 318000, China
| | - Andrei A Zimin
- Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Pushchino, 142290, Russia
| | - Weihong Jiang
- Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Zixin Deng
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Zhijun Wang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200030, China.
| | - Yinhua Lu
- College of Life Sciences, Shanghai Normal University, Shanghai, 200234, China. .,Shanghai Engineering Research Center of Plant Germplasm Resources, College of Life Sciences, Shanghai Normal University, Shanghai, 200234, China.
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49
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Zhao Y, Zhao Q, Zhang X, Zhu E, Liu X, Yin J. Understand Dynamic Regret with Switching Cost for Online Decision Making. ACM T INTEL SYST TEC 2020. [DOI: 10.1145/3375788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
As a metric to measure the performance of an online method, dynamic regret with switching cost has drawn much attention for online decision making problems. Although the sublinear regret has been provided in much previous research, we still have little knowledge about the relation between the
dynamic regret
and the
switching cost
. In the article, we investigate the relation for two classic online settings: Online Algorithms (OA) and Online Convex Optimization (OCO). We provide a new theoretical analysis framework that shows an interesting observation; that is, the relation between the switching cost and the dynamic regret is different for settings of OA and OCO. Specifically, the switching cost has significant impact on the dynamic regret in the setting of OA. But it does not have an impact on the dynamic regret in the setting of OCO. Furthermore, we provide a lower bound of regret for the setting of OCO, which is same with the lower bound in the case of no switching cost. It shows that the switching cost does not change the difficulty of online decision making problems in the setting of OCO.
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Affiliation(s)
- Yawei Zhao
- School of Computer, National University of Defense Technology, Changsha, Hunan, China
| | - Qian Zhao
- College of Mathematics and System Science, Xinjiang University, Urumqi, Xinjiang, China
| | - Xingxing Zhang
- Institute of Information Science, and Beijing Key Laboratory of Advanced Information Science and Network Technology, Beijing Jiaotong University, Beijing, China
| | - En Zhu
- School of Computer, National University of Defense Technology, Changsha, Hunan, China
| | - Xinwang Liu
- School of Computer, National University of Defense Technology, Changsha, Hunan, China
| | - Jianping Yin
- School of Computer, Dongguan University of Technology, Dongguan, Guangdong, China
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50
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Zhao Y, He K, Zheng H, Sun M, Shi T, Zheng X, Shao D, Zhang H, Guan F, Li J, Chen L. Berberine Inhibits the Apoptosis-Induced Metastasis by Suppressing the iPLA2/LOX-5/LTB4 Pathway in Hepatocellular Carcinoma. Onco Targets Ther 2020; 13:5223-5230. [PMID: 32606742 PMCID: PMC7294104 DOI: 10.2147/ott.s243357] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 12/22/2019] [Accepted: 05/12/2020] [Indexed: 01/03/2023] Open
Abstract
Purpose Hepatocellular carcinoma (HCC) is one of the most malignant cancers around the world. HCC is less sensitive to conventional cytotoxic agents and easily develops into systemic metastases. However, the molecular mechanisms of the metastasis of HCC are poorly understood and need elucidation. Materials and Methods Transwell system of the chemotherapy-challenged and unchallenged HepG2 cells was established. Adhesion assay and scratch-wound assay were utilized to analyze the adhesion and migration of HepG2 cells. iPLA2 and LOX-5 expression were analyzed by Western blot. LTB4 level was analyzed by ELISA. Results Chemotherapeutics are traditionally regarded as a way of killing tumor cells; on the other hand, we proved that the chemotherapeutics-induced tumor cell apoptosis can also change the tumor microenvironment by activating the LOX pathway and subsequently release inflammatory factors such as LTB4 which can stimulate the adhesion and migration of the small number of surviving cells. Berberine can reverse the adhesion and migration of HepG2 cells by inhibiting the expression of LOX-5 and reducing the LTB4 production in the tumor microenvironment. Conclusion Our study sheds light on a novel anti-metastasis strategy that the combination of Berberine and chemotherapy may prevent the chemotherapy-induced metastasis in HCC.
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Affiliation(s)
- Yawei Zhao
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Kan He
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Huilin Zheng
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Madi Sun
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Tongfei Shi
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Xiao Zheng
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Dan Shao
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China.,Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - Hansi Zhang
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Fengying Guan
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Jing Li
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Li Chen
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China.,School of Nursing, Jilin University, Changchun 130020, People's Republic of China
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