201
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Zhou KL, Dong S, Guo S, Dai XH, Yang JY, Liu Y, Mi BL, Wang SW, Fu GB, Wei PD. Efficacy and safety of massage therapy for chronic atrophic gastritis: A protocol for systematic review and meta-analysis. Medicine (Baltimore) 2020; 99:e23347. [PMID: 33217876 PMCID: PMC7676512 DOI: 10.1097/md.0000000000023347] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 10/26/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Chronic atrophic gastritis (CAG) is an established precursor of gastric carcinoma with high prevalence worldwide. It is a typical complex gastro-intestinal disease with multiple influence factors, of which exact mechanisms remain unelucidated. Therefore, an ideal strategy to relieve CAG is urgently needed. In recent years, massage therapy has been increasingly accepted by CAG patients due to its lower costs, fewer unwanted side effects and safety for clinical use. In this systematic review, we aim to evaluate the effectiveness and safety of massage therapy for patients with chronic atrophic gastritis. METHODS We will search the following electronic databases for randomized controlled trials to evaluate the effectiveness and safety of massage therapy in treating chronic atrophic gastritis: Wanfang and Pubmed Database, China National Knowledge Infrastructure Database, Cochrane Central register of controlled trials, Cumulative Index of Nursing and Allied Health Literature, and Excerpta Medica database. Each database will be searched from inception to September 2020. The entire process will include study selection, data extraction, risk of bias assessment, and meta-analyses. RESULT This proposed study will evaluate the effectiveness and safety of massage therapy for patients with chronic atrophic gastritis. The outcomes will include changes in CAG relief and adverse effect. CONCLUSION This proposed systematic review will evaluate the existing evidence on the effectiveness and safety of massage therapy for patients with chronic atrophic gastritis. DISSEMINATION AND ETHICS The results of this review will be disseminated through peer-reviewed publication. Because all of the data used in this systematic review and meta-analysis has been published, this review does not require ethical approval. Furthermore, all data will be analyzed anonymously during the review process.
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Affiliation(s)
- Ke-Lin Zhou
- Dongfang Hospital of Beijing University of Chinese Medicine
| | - Shuo Dong
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Sheng Guo
- Dongfang Hospital of Beijing University of Chinese Medicine
| | - Xiao-Hui Dai
- Dongfang Hospital of Beijing University of Chinese Medicine
| | - Jing-Yi Yang
- Dongfang Hospital of Beijing University of Chinese Medicine
| | - Yang Liu
- Dongfang Hospital of Beijing University of Chinese Medicine
| | - Bao-Lai Mi
- Dongfang Hospital of Beijing University of Chinese Medicine
| | - Shao-Wei Wang
- Dongfang Hospital of Beijing University of Chinese Medicine
| | - Guo-Bing Fu
- Dongfang Hospital of Beijing University of Chinese Medicine
| | - Pei-Dong Wei
- Dongfang Hospital of Beijing University of Chinese Medicine
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202
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Guo S, Zhu J, Buchwald SL. Enantioselective Synthesis of β-Amino Acid Derivatives Enabled by Ligand-Controlled Reversal of Hydrocupration Regiochemistry. Angew Chem Int Ed Engl 2020; 59:20841-20845. [PMID: 32598506 DOI: 10.1002/anie.202007005] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/04/2020] [Indexed: 11/08/2022]
Abstract
A Cu-catalyzed enantioselective hydroamination of α,β-unsaturated carbonyl compounds for the synthesis of β-amino acid derivatives was achieved through ligand-controlled reversal of the hydrocupration regioselectivity. While the hydrocupration of α,β-unsaturated carbonyl compounds to form α-cuprated species has been extensively investigated, we report herein that, in the presence of an appropriate ancillary chiral ligand, the opposite regiochemistry can be observed for cinnamic acid derivatives, leading to the delivery of the copper to the β-position. This copper can react with an electrophilic aminating reagent, 1,2-benzisoxazole, to provide enantioenriched β-amino acid derivatives, which are important building blocks for the synthesis of natural products and bioactive small molecules.
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Affiliation(s)
- Sheng Guo
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Jiaqi Zhu
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Stephen L Buchwald
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
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203
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Guo S, Zhu J, Buchwald SL. Enantioselective Synthesis of β‐Amino Acid Derivatives Enabled by Ligand‐Controlled Reversal of Hydrocupration Regiochemistry. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sheng Guo
- Department of Chemistry Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Jiaqi Zhu
- Department of Chemistry Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Stephen L. Buchwald
- Department of Chemistry Massachusetts Institute of Technology Cambridge MA 02139 USA
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204
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Zhang C, Zhang PQ, Guo S, Chen G, Zhao Z, Wang GX, Zhu B. Application of Biomimetic Cell-Derived Nanoparticles with Mannose Modification as a Novel Vaccine Delivery Platform against Teleost Fish Viral Disease. ACS Biomater Sci Eng 2020; 6:6770-6777. [DOI: 10.1021/acsbiomaterials.0c01302] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Chen Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Peng-Qi Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Sheng Guo
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Guo Chen
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Zhao Zhao
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Gao-Xue Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Bin Zhu
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
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205
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Liu B, Zhang W, Guo S, Zuo Z. Discovery of novel modulators targeting human TRPC5: Docking-based virtual screening, molecular dynamics simulation and binding affinity predication. J Mol Graph Model 2020; 102:107795. [PMID: 33161371 DOI: 10.1016/j.jmgm.2020.107795] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 10/28/2020] [Accepted: 10/28/2020] [Indexed: 11/20/2022]
Abstract
Canonical transient receptor potential channel 5 (TRPC5) plays a key role in the regulation of central nervous system, cardiovascular system, kidney disease, cancer, and could be also involved in liver function, arthritis, diabetes-associated complications and so on. However, evidence of TRPC5 function on cellular or organismic levels is sparse. There is still a need for identifying novel and efficient TRPC5 channel modulators to study TRPC5 function. In this study, based on the hTRPC5 structure obtained by homology modeling and the predicted binding site, we have performed virtual screening of 212,736 compounds from the specs database(http://www.specs.net) to find potential hTRPC5 modulators. Lipinski and Veber rules, ADMET (Absorption, Distribution, Metabolism, Excretion, Toxicity) and PAINS (Pan Assay Interference structures) filters were used to screen the large database. Further, multi-software combination docking, cluster analysis and interaction analysis were used to select 20 potential active candidates with novel skeleton. 4 Hits, bearing appreciable binding affinity with hTRPC5 were selected for 40ns all-atom molecular dynamics (MD) simulations under explicit water conditions. The MD simulation results suggested that the 4 Hits binding induces a slight structural change and stabilizes the hTRPC5 structure. In addition, decomposition free energy demonstrated that residues TRP434, LEU437, MET438, ALA441, ILE484, ILE487, LEU488, LEU491, LEU515, ILE517, LEU518, LEU521, PHE531, THR607, VAL610, ILE611, VAL615 played the critical role on system stability. 4 Hits, as potential modulators of hTRPC5, may be potential leads to develop effective therapeutics hTRPC5-associated diseases.
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Affiliation(s)
- Bin Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Wei Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
| | - Sheng Guo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
| | - Zhili Zuo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China.
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206
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Liu X, He Q, Liang Z, Wu H, Li Y, Zhang Z, Yu L, Dai M, Guo S, Jin G, Shen S, Su Z, Ma C, Xie Z, Liu R. 118MO Circulating tumour DNA methylation are markers for early detection of pancreatic ductal adenocarcinoma (PDAC). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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207
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Liao Y, Cao B, Liu L, Wu X, Guo S, Mi C, Li K, Wang M. Structure and properties of bio‐based polyurethane coatings for controlled‐release fertilizer. J Appl Polym Sci 2020. [DOI: 10.1002/app.50179] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yun Liao
- School of Chemistry and Chemical Engineering University of South China Hengyang China
| | - Bing Cao
- Institute of Plant Nutrition and Resource Beijing Academy of Agriculture and Forestry Sciences Beijing China
| | - Li Liu
- School of Nuclear Science and Technology University of South China Hengyang China
| | - Xiandong Wu
- School of Nuclear Science and Technology University of South China Hengyang China
| | - Sheng Guo
- School of Chemistry and Chemical Engineering University of South China Hengyang China
| | - Changhui Mi
- School of Chemistry and Chemical Engineering University of South China Hengyang China
| | - Kaiwen Li
- School of Nuclear Science and Technology University of South China Hengyang China
| | - Meng Wang
- School of Nuclear Science and Technology University of South China Hengyang China
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208
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Li HW, Liu P, Zhang HQ, Feng WM, Yan H, Guo S, Qian DW, Duan JA. Determination of bioactive compounds in the nonmedicinal parts of Scrophularia ningpoensis using ultra-high-performance liquid chromatography coupled with tandem mass spectrometry and chemometric analysis. J Sep Sci 2020; 43:4191-4201. [PMID: 32975375 DOI: 10.1002/jssc.202000723] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 09/14/2020] [Accepted: 09/20/2020] [Indexed: 12/28/2022]
Abstract
Although Scrophulariae Radix (root of Scrophularia ningpoensis) has received much attention, little is known about the nonmedicinal parts of S. ningpoensis. A comprehensive evaluation of the multibioactive constituents in the flowers, rhizomes, leaves, and stems of S. ningpoensis during different growth stages would be of value to fully understand the potential medicinal properties of all parts of the plant. Ultra-high-performance liquid chromatography coupled with triple quadrupole mass spectrometry was performed for accurately determining nine compounds in S. ningpoensis. The results indicated the content of total analytes in S. ningpoensis was in the order of flowers (81.82 mg/g) > roots (31.95 mg/g) > rhizomes (26.68 mg/g) > leaves (16.86 mg/g) > stems (14.35 mg/g). The chemometric analysis showed that these plant parts were rich in iridoids and should not be discarded during the processing of medicinal materials. Dynamic accumulation analysis suggested that the early flowering stage was the optimum time for harvesting flowers and appropriate amounts of stems and leaves. Moreover, considering the accumulation of constituents and biomass of medicinal materials, the medicinal parts should be harvested around December with the rhizomes attached. This research provides a theoretical basis and scientific evidence for comprehensive development and utilization of S. ningpoensis resources.
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Affiliation(s)
- Hui-Wei Li
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, P. R. China
| | - Pei Liu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, P. R. China
| | - Huang-Qin Zhang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, P. R. China.,Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Third Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, P. R. China
| | - Wei-Meng Feng
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, P. R. China
| | - Hui Yan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, P. R. China
| | - Sheng Guo
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, P. R. China
| | - Da-Wei Qian
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, P. R. China
| | - Jin-Ao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, P. R. China
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209
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Liu Y, Lei Y, Guo S, Zuo Z. Ensemble-based virtual screening in discovering potent inhibitors targeting Von Hippel-Lindau (VHL) E3 ubiquitin ligase. Life Sci 2020; 262:118495. [PMID: 32987061 DOI: 10.1016/j.lfs.2020.118495] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 07/14/2020] [Revised: 09/11/2020] [Accepted: 09/20/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND The Von Hippel-Lindau (VHL) E3 ubiquitin ligase, which mediates its substrate hypoxia-inducible factor 1α (HIF-1α) for ubiquitination and subsequent degradation, is an attractive drug target in various diseases, such as anemia, inflammation, neurodegeneration and cancer. Proteolysis targeting chimeras (PROTACs) containing a VHL ligand that can hijack the E3 ligase activity to degrade the target protein has also been studied in academic and in industry areas recently. METHODS Herein, by developing and optimizing the Bayesian Model, we report ensemble-based virtual screening as an effective strategy to discover potential VHL inhibitors from Specs database. RESULTS The virtual screening protocol was developed, ten representative molecules were obtained and five compounds were selected for subsequent binding mode analysis to be potent VHL inhibitors.
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Affiliation(s)
- Yi Liu
- School of Chemical Engineering, Sichuan University of Science & Engineering, 180 Xueyuan Street, Huixing Road, Zigong, Sichuan 643000, China.
| | - Yu Lei
- School of Chemical Engineering, Sichuan University of Science & Engineering, 180 Xueyuan Street, Huixing Road, Zigong, Sichuan 643000, China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| | - Sheng Guo
- School of Chemical Engineering, Sichuan University of Science & Engineering, 180 Xueyuan Street, Huixing Road, Zigong, Sichuan 643000, China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| | - Zhili Zuo
- School of Chemical Engineering, Sichuan University of Science & Engineering, 180 Xueyuan Street, Huixing Road, Zigong, Sichuan 643000, China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China.
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210
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Zhao Q, Xue J, Hong B, Qian W, Liu T, Fan B, Cai J, Ji Y, Liu J, Yang Y, Li Q, Guo S, Zhang N. Transcriptomic characterization and innovative molecular classification of clear cell renal cell carcinoma in the Chinese population. Cancer Cell Int 2020; 20:461. [PMID: 32982583 PMCID: PMC7510315 DOI: 10.1186/s12935-020-01552-w] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 09/10/2020] [Indexed: 01/03/2023] Open
Abstract
Background Large-scale initiatives like The Cancer Genome Atlas (TCGA) performed genomics studies on predominantly Caucasian kidney cancer. In this study, we aimed to investigate genomics of Chinese clear cell renal cell carcinoma (ccRCC). Methods We performed whole-transcriptomic sequencing on 55 tumor tissues and 11 matched normal tissues from Chinese ccRCC patients. We systematically analyzed the data from our cohort and comprehensively compared with the TCGA ccRCC cohort. Results It found that PBRM1 mutates with a frequency of 11% in our cohort, much lower than that in TCGA Caucasians (33%). Besides, 31 gene fusions including 5 recurrent ones, that associated with apoptosis, tumor suppression and metastasis were identified. We classified our cohort into three classes by gene expression. Class 1 shows significantly elevated gene expression in the VEGF pathway, while Class 3 has comparably suppressed expression of this pathway. Class 2 is characterized by increased expression of extracellular matrix organization genes and is associated with high-grade tumors. Applying the classification to TCGA ccRCC patients revealed better distinction of tumor prognosis than reported classifications. Class 2 shows worst survival and Class 3 is a rare subtype ccRCC in the TCGA cohort. Furthermore, computational analysis on the immune microenvironment of ccRCC identified immune-active and tolerant tumors with significant increased macrophages and depleted CD4 positive T-cells, thus some patients may benefit from immunotherapies. Conclusion In summary, results presented in this study shed light into distinct genomic expression profiles in Chinese population, modified the stratification patterns by new molecular classification, and gave practical guidelines on clinical treatment of ccRCC patients.
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Affiliation(s)
- Qiang Zhao
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Urology, Peking University Cancer Hospital & Institute, 52 Fucheng Road, Haidian District, Beijing, 100142 People's Republic of China
| | - Jia Xue
- Systems Biology, Crown Bioscience Inc., No. 218 Xinghu Street, Suzhou Industrial Park, Suzhou, 215028 People's Republic of China
| | - Baoan Hong
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Urology, Peking University Cancer Hospital & Institute, 52 Fucheng Road, Haidian District, Beijing, 100142 People's Republic of China
| | - Wubin Qian
- Systems Biology, Crown Bioscience Inc., No. 218 Xinghu Street, Suzhou Industrial Park, Suzhou, 215028 People's Republic of China
| | - Tiezhu Liu
- Department of Urology, Daqing Oilfield General Hospital, Heilongjiang, 163316 People's Republic of China
| | - Bin Fan
- Crown Bioscience Inc., No.21 Huoju Street Changping District, Beijing, 102200 People's Republic of China
| | - Jie Cai
- Crown Bioscience Inc., No.21 Huoju Street Changping District, Beijing, 102200 People's Republic of China
| | - Yongpeng Ji
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Urology, Peking University Cancer Hospital & Institute, 52 Fucheng Road, Haidian District, Beijing, 100142 People's Republic of China
| | - Jia Liu
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Urology, Peking University Cancer Hospital & Institute, 52 Fucheng Road, Haidian District, Beijing, 100142 People's Republic of China
| | - Yong Yang
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Urology, Peking University Cancer Hospital & Institute, 52 Fucheng Road, Haidian District, Beijing, 100142 People's Republic of China
| | - Qixiang Li
- Crown Bioscience Inc., 3375 Scott Blvd, Suite 108, Santa Clara, CA 95054 USA.,State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, 100191 People's Republic of China
| | - Sheng Guo
- Systems Biology, Crown Bioscience Inc., No. 218 Xinghu Street, Suzhou Industrial Park, Suzhou, 215028 People's Republic of China
| | - Ning Zhang
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Urology, Peking University Cancer Hospital & Institute, 52 Fucheng Road, Haidian District, Beijing, 100142 People's Republic of China
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211
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Wang W, Sang Y, Liu J, Liang X, Guo S, Liu L, Yuan Q, Xing C, Pan S, Wang L. Identification of novel monoclonal antibodies targeting the outer membrane protein C and lipopolysaccharides for Escherichia coli O157:H7 detection. J Appl Microbiol 2020; 130:1245-1258. [PMID: 32910517 DOI: 10.1111/jam.14849] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/27/2020] [Accepted: 09/02/2020] [Indexed: 12/14/2022]
Abstract
AIMS To identify and evaluate the application of two novel monoclonal antibody (mAb) 2G12 against outer membrane protein (Omp) C and mAb 12B1 targeting the O chain of the lipopolysaccharides (LPS) of Escherichia coli O157:H7 (ECO157). METHODS AND RESULTS The sensitivity and specificity of these two antibodies were evaluated with eight ECO157 strains and 68 untargeted strains. mAb 2G12 and 12B1 had no detectable binding with any of the non-O157 strains at 6·0 log10 CFU per ml, while its high specificity and affinity remained with all ECO157 strains. When a higher level (8·0 log10 CFU per ml) was tested, 2G12 and 12B1 did not react with 82·35 and 97·06% of the non-O157 strains respectively. Based on the pair of two antibodies, the sandwich enzyme-linked immunosorbent assay detected 100% (8/8) of ECO157 strains and none of the non-ECO157 strains. The detection limit of ECO157 strains in pure culture were 4·2 ± 0·2 log10 CFU per ml. When the developed test was applied to artificially inoculated beef samples, the detection limit was 6·0 log10 CFU per gram without enrichment and 1·0 log10 CFU per gram after 12 h of enrichment. CONCLUSIONS The two novel antibodies identified in this study served as great candidates for the recovery, and detection of ECO157 from different environmental and food samples. SIGNIFICANCE AND IMPACT OF THE STUDY ECO157-specific detection was improved by a combination of the novel OmpC mAb and LPS mAb with defined target antigen and good specificity.
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Affiliation(s)
- W Wang
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China.,Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China
| | - Y Sang
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China.,Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China
| | - J Liu
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China.,Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China
| | - X Liang
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China.,Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China
| | - S Guo
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China.,Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China
| | - L Liu
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China.,Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China
| | - Q Yuan
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China.,Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China
| | - C Xing
- School of Food Science and Engineering, Nanjing University of Finance & Economics, Nanjing, Jiangsu, P.R. China
| | - S Pan
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China.,Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, Jiangsu, P.R. China
| | - L Wang
- Department of Food Science and Technology, University of California Davis, Davis, CA, USA
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212
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Su P, Guo S, Roys S, Maier F, Bhat H, Melhem ER, Gandhi D, Gullapalli RP, Zhuo J. Transcranial MR Imaging-Guided Focused Ultrasound Interventions Using Deep Learning Synthesized CT. AJNR Am J Neuroradiol 2020; 41:1841-1848. [PMID: 32883668 DOI: 10.3174/ajnr.a6758] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 07/05/2020] [Indexed: 01/12/2023]
Abstract
BACKGROUND AND PURPOSE Transcranial MR imaging-guided focused ultrasound is a promising novel technique to treat multiple disorders and diseases. Planning for transcranial MR imaging-guided focused ultrasound requires both a CT scan for skull density estimation and treatment-planning simulation and an MR imaging for target identification. It is desirable to simplify the clinical workflow of transcranial MR imaging-guided focused ultrasound treatment planning. The purpose of this study was to examine the feasibility of deep learning techniques to convert MR imaging ultrashort TE images directly to synthetic CT of the skull images for use in transcranial MR imaging-guided focused ultrasound treatment planning. MATERIALS AND METHODS The U-Net neural network was trained and tested on data obtained from 41 subjects (mean age, 66.4 ± 11.0 years; 15 women). The derived neural network model was evaluated using a k-fold cross-validation method. Derived acoustic properties were verified by comparing the whole skull-density ratio from deep learning synthesized CT of the skull with the reference CT of the skull. In addition, acoustic and temperature simulations were performed using the deep learning CT to predict the target temperature rise during transcranial MR imaging-guided focused ultrasound. RESULTS The derived deep learning model generates synthetic CT of the skull images that are highly comparable with the true CT of the skull images. Their intensities in Hounsfield units have a spatial correlation coefficient of 0.80 ± 0.08, a mean absolute error of 104.57 ± 21.33 HU, and a subject-wise correlation coefficient of 0.91. Furthermore, deep learning CT of the skull is reliable in the skull-density ratio estimation (r = 0.96). A simulation study showed that both the peak target temperatures and temperature distribution from deep learning CT are comparable with those of the reference CT. CONCLUSIONS The deep learning method can be used to simplify workflow associated with transcranial MR imaging-guided focused ultrasound.
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Affiliation(s)
- P Su
- From the Department of Diagnostic Radiology and Nuclear Medicine (P.S., S.G., S.R., E.R.M., D.G., R.G., J.Z.), University of Maryland School of Medicine, Baltimore, Maryland.,Siemens Medical Solutions USA (P.S., H.B.), Malvern, Pennsylvania
| | - S Guo
- From the Department of Diagnostic Radiology and Nuclear Medicine (P.S., S.G., S.R., E.R.M., D.G., R.G., J.Z.), University of Maryland School of Medicine, Baltimore, Maryland.,Center for Metabolic Imaging and Therapeutics (S.G., S.R., R.G., J.Z.), University of Maryland Medical Center, Baltimore, Maryland
| | - S Roys
- From the Department of Diagnostic Radiology and Nuclear Medicine (P.S., S.G., S.R., E.R.M., D.G., R.G., J.Z.), University of Maryland School of Medicine, Baltimore, Maryland.,Center for Metabolic Imaging and Therapeutics (S.G., S.R., R.G., J.Z.), University of Maryland Medical Center, Baltimore, Maryland
| | - F Maier
- Siemens Healthcare GmbH (F.M.), Erlangen, Germany
| | - H Bhat
- Siemens Medical Solutions USA (P.S., H.B.), Malvern, Pennsylvania
| | - E R Melhem
- From the Department of Diagnostic Radiology and Nuclear Medicine (P.S., S.G., S.R., E.R.M., D.G., R.G., J.Z.), University of Maryland School of Medicine, Baltimore, Maryland
| | - D Gandhi
- From the Department of Diagnostic Radiology and Nuclear Medicine (P.S., S.G., S.R., E.R.M., D.G., R.G., J.Z.), University of Maryland School of Medicine, Baltimore, Maryland
| | - R P Gullapalli
- From the Department of Diagnostic Radiology and Nuclear Medicine (P.S., S.G., S.R., E.R.M., D.G., R.G., J.Z.), University of Maryland School of Medicine, Baltimore, Maryland.,Center for Metabolic Imaging and Therapeutics (S.G., S.R., R.G., J.Z.), University of Maryland Medical Center, Baltimore, Maryland
| | - J Zhuo
- From the Department of Diagnostic Radiology and Nuclear Medicine (P.S., S.G., S.R., E.R.M., D.G., R.G., J.Z.), University of Maryland School of Medicine, Baltimore, Maryland .,Center for Metabolic Imaging and Therapeutics (S.G., S.R., R.G., J.Z.), University of Maryland Medical Center, Baltimore, Maryland
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213
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Krafft C, Guo S, Bocklitz T, Popp J, Bronsert P, Miernik A. Raman Spectroscopy to Characterize Bladder Tissue for Multidimensional Diagnostics of Cancer in Urology. Current Directions in Biomedical Engineering 2020. [DOI: 10.1515/cdbme-2020-3063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Fiber optic Raman spectroscopy offers labelfree identification of cancer in the bladder under in vivo conditions. However, state-of-the-art Raman technology does not enable to scan the entire bladder wall. Our multidimensional approach within the project Uro-MDD combines panoramic 3D-image reconstruction of white light cystoscopy and fluorescence lifetime imaging to define regions of interest for Raman-assisted diagnostics. First Raman results are presented from human control and cancer bladder specimens that demonstrated how to obtain specific molecular information. Such Raman images can be used in a clinical setting to determine cancer margins and the resection status. Fiber probes are under development to translate the technique to in vivo screening.
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Affiliation(s)
- C. Krafft
- Leibniz IPHT, Albert-Einstein- Str. 9, 07745 Jena , Germany
| | - S. Guo
- Leibniz IPHT, Jena , Germany
| | | | - J. Popp
- Leibniz IPHT, Jena , Germany
| | - P. Bronsert
- Medical Center – University of Freiburg, Fahnenbergplatz, 79085 Freiburg im Breisgau , Germany
| | - A. Miernik
- Medical Center – University of Freiburg, Fahnenbergplatz, 79085 Freiburg im Breisgau , Germany
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214
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Zhang C, Guo S, Zhao Z, Guo ZR, Ma R, Wang GX, Zhu B. Surface display of spring viremia of carp virus glycoprotein on Lactococcus lactis and its protection efficacy in common carp (Cyprinus carpio L.). Fish Shellfish Immunol 2020; 104:262-268. [PMID: 32534229 DOI: 10.1016/j.fsi.2020.06.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 03/08/2020] [Revised: 05/16/2020] [Accepted: 06/09/2020] [Indexed: 06/11/2023]
Abstract
Spring viremia of carp virus (SVCV) causes devastating disease in aquaculture, resulting in significant economic impact. To develop an effective means against SVCV infection, a Lactococcus lactis (L.lactis) based subunit vaccine (pNZ-UGA) was developed based on surface displaying of SVCV glycoprotein using anchoring motif of the cA (C terminus of the peptidoglyvsn-binding) domains of AcmA, a major autolysin from L.lactis. The surface expression of SVCV glycoprotein was verified by indirect immunofluorescence assay. The efficacy of the constructed vaccine was further evaluated in common carp. The results showed that the higher levels of specific IgM could be detected in fish vaccinated with pNZ-UGA, compared with that in PBS and L.lactis groups. Immune-related genes including TNF-α, IL-6b, IL-1β, Cxcr 1, Cxca, IFNg2b, I-IFN, and IgM expression in pNZ-UGA group were strongly up-regulated, revealing that robust innate immune response was induced. Notably, the lowest cumulative mortality (13.46%) was observed in fish vaccinated with pNZ-UGA vaccine after SVCV challenge, whereas the cumulative mortality were 100.00% and 92.31% in PBS and L.lactis groups, respectively. This study suggests the potential use of the recombinant L.lactis with surface displaying antigen proteins as effective vaccines against SVCV and other fish virus infection.
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Affiliation(s)
- Chen Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Sheng Guo
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Zhao Zhao
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Zi-Rao Guo
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Rui Ma
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Gao-Xue Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Bin Zhu
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
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215
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Liu X, He Q, Su Z, Guo S, Liang Z, Jin G. 1211P Early detection of pancreatic ductal adenocarcinoma (PDAC) using methylation signatures in circulating tumour DNA. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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216
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Chen X, Qian W, Song Z, Li QX, Guo S. Authentication, characterization and contamination detection of cell lines, xenografts and organoids by barcode deep NGS sequencing. NAR Genom Bioinform 2020; 2:lqaa060. [PMID: 33575611 PMCID: PMC7671372 DOI: 10.1093/nargab/lqaa060] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 07/21/2020] [Accepted: 07/28/2020] [Indexed: 12/12/2022] Open
Abstract
Misidentification and contamination of biobank samples (e.g. cell lines) have plagued biomedical research. Short tandem repeat (STR) and single-nucleotide polymorphism assays are widely used to authenticate biosamples and detect contamination, but with insufficient sensitivity at 5–10% and 3–5%, respectively. Here, we describe a deep NGS-based method with significantly higher sensitivity (≤1%). It can be used to authenticate human and mouse cell lines, xenografts and organoids. It can also reliably identify and quantify contamination of human cell line samples, contaminated with only small amount of other cell samples; detect and quantify species-specific components in human–mouse mixed samples (e.g. xenografts) with 0.1% sensitivity; detect mycoplasma contamination; and infer population structure and gender of human samples. By adopting DNA barcoding technology, we are able to profile 100–200 samples in a single run at per-sample cost comparable to conventional STR assays, providing a truly high-throughput and low-cost assay for building and maintaining high-quality biobanks.
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Affiliation(s)
- Xiaobo Chen
- Crown Bioscience, Inc., 218 Xinghu Road, Suzhou, Jiangsu 215400, China
| | - Wubin Qian
- Crown Bioscience, Inc., 218 Xinghu Road, Suzhou, Jiangsu 215400, China
| | - Zhenzhen Song
- Crown Bioscience, Inc., 218 Xinghu Road, Suzhou, Jiangsu 215400, China
| | - Qi-Xiang Li
- Crown Bioscience, Inc., 16550 W Bernardo Dr, Building 5, San Diego, CA 92127, USA
| | - Sheng Guo
- Crown Bioscience, Inc., 218 Xinghu Road, Suzhou, Jiangsu 215400, China
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217
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Xu X, Qian W, Guo S, Li HQ. Abstract 180: Systematic genomic analysis of matched PDX, PDX-derived organoids (PDXO), and PDX-derived cell lines (PDXC). Cancer Res 2020. [DOI: 10.1158/1538-7445.am2020-180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
INTRODUCTION
Patient-derived xenografts (PDX) are considered predictive in vivo models for assessing cancer therapeutics due to their close genomic and histopathological resemblance to primary patient tumors. PDX can also be used to derive in vitro organoids (PDXO) and cell lines (PDXC), as we recently proposed and demonstrated, essentially creating matched pairs of in vitro and in vivo models. Cell lines serve as a conventional solution for fast and affordable evaluation of chemo- and targeted therapies, but they suffer from reduced clinical translatability. Organoids maintain organ structures and relevant functions in 3D culture, and are considered to be more physiologically relevant cancer models1. It is possible that the three experimental models have different genomic profiles, caused by different growing conditions, and that this will affect therapeutic evaluation, yet a systematic analysis is so far lacking.
METHODS
We developed a set of PDX-PDXO-PDXC model trios. Models were characterized for morphology, histopathology, genomics, and response to anticancer drugs, followed by a comparative analysis with an emphasis on genomic profiles.
RESULTS
We found that PDXO and PDXC have varied model establishment rates from PDX depending on cancer type. PDXO and PDXC show characteristic morphology. Like PDX, they exhibit model-specific growth kinetics and drug response. A high concordance of drug response was observed between PDX and matched PDXO. Genome-level mutation analysis showed good conservation of both somatic and driver mutations among the trios, indicating largely identical tumorigenesis mechanisms. However, significant transcriptomic differences were observed in pairwise comparisons between PDX-PDXO, PDX-PDXC, and PDXO-PDXC. We performed an in-depth analysis of differentially expressed genes, pathways, and gene networks to understand the underlying molecular mechanisms and their potential impact on drug evaluation.
CONCLUSIONS
Our study is the first large-scale comparative study to help understand the relatedness and uniqueness of PDX, PDXO, and PDXC on genomics.
REFERENCES
[1] Tuveson, D. & Clevers, H. Cancer modeling meets human organoid technology. Science 364, 952-955 (2019).
Citation Format: Xiaoxi Xu, Wubin Qian, Sheng Guo, Henry Q. Li. Systematic genomic analysis of matched PDX, PDX-derived organoids (PDXO), and PDX-derived cell lines (PDXC) [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 180.
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Affiliation(s)
- Xiaoxi Xu
- 1Crown Bioscience Inc. (Beijing), Beijing, China
| | - Wubin Qian
- 2Crown Bioscience Inc. (Suzhou), Suzhou, China
| | - Sheng Guo
- 2Crown Bioscience Inc. (Suzhou), Suzhou, China
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218
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Mao B, Ouyang D, Li H, Guo S. Abstract 3228: An online tool to balance baseline covariates for mouse clinical trials. Cancer Res 2020. [DOI: 10.1158/1538-7445.am2020-3228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
INTRODUCTION: Randomization is a cornerstone of controlled studies such as mouse clinical trials (MCT). However, simple randomization schemes often lead to unbalanced group allocations, therefore reducing the statistical power of experimental studies. This issue becomes more relevant and critical in MCTs where it is usually necessary to allocate a large number of mice into multiple groups/arms, so that all groups have close tumor volumes (measured by average and variance) as well as other covariates such as body weight, while at the same time also using as few mice as possible. Possible allocations grow exponentially by mouse and group number, and it is computationally intractable to identify optimal allocation schemes; instead, heuristic methods are used to search for near-optimal solutions. Studylog® systems can balance tumor volume with at most one baseline covariate. Randmice, a newly developed tool by Stimunity, shows good performance in balancing bilateral tumors, but it cannot balance more than two baseline covariates. We have developed a fast, in-house, online tool to balance any number of baseline covariates and, in addition, users can assign different weights to each baseline covariate based on levels of importance.
METHODS: We used a two-step method to balance designated baseline covariates for MCTs. First, we used a matched algorithm to find sub-matches from a population of mice, by grouping together mice with similar values of baseline covariates. Based on these sub-matches, we then used an optimization method to minimize the imbalance of baseline covariates guided by a weighted score function. Once the optimization was complete, a summary statistic table and a diagnostic plot for the top 10 group allocation solutions were displayed for picking the most suitable solution.
RESULTS: We used our baseline covariate balancing tool for a benchmark set of mouse clinical trials with more than one baseline covariate to be balanced out, with the difference of key baseline covariates among groups well under control with close means. The tool completed the allocations in a few minutes by running on a single-CPU computer.
CONCLUSIONS: We have developed a fast and powerful online tool to help preclinical researchers balance key baseline covariates in their studies, particularly in mouse clinical trials.
Citation Format: Binchen Mao, Davy Ouyang, Henry Li, Sheng Guo. An online tool to balance baseline covariates for mouse clinical trials [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 3228.
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Affiliation(s)
| | | | - Henry Li
- Crown Bioscience, Inc., Taicang, China
| | - Sheng Guo
- Crown Bioscience, Inc., Taicang, China
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219
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Chen X, Xue J, Li Q, Guo S. Abstract 5963: NGS-based murine pan-cancer gene expression panel for immuno-oncology and tumor microenvironment studies. Cancer Res 2020. [DOI: 10.1158/1538-7445.am2020-5963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
INTRODUCTION: Cancer is a heterogeneous disease and highly related to the immunological system. The significance of fully understanding the interactions between cancer and immunity in cancer therapeutics has been broadly noted, particularly for immunotherapies. Experimental murine models derived from a variety of biological technologies are essential preclinical model systems utilized before clinical studies. Molecular pathology techniques, such as gene expression biomarkers, are widely used to systematically profile and characterize these models. So far, however, there has been no robust and cost-effective assay designed for murine clinical immuno-oncology (I/O) research to characterize tumor-immune interactions at a gene expression level.
METHODS: Marker genes were identified by combining public and in-house reference genomic data for non-tumor bearing mice as well as tumor mouse models. Oligonucleotide-based hybridization/capture techniques analogous to exome sequencing, targeting specific regions are well established on Illumina Novaseq and BGI MGIseq platforms. These methods were applied to the murine I/O panel assay, with accuracy and reproducibility verified across these two sequencing platforms. The results were further qualified using a PCR array platform.
RESULTS: A mouse gene panel involving 1080 genes that encompass surface markers and transcriptomic biomarkers for the immune system, key pathways at the interface of the tumor, tumor microenvironment (TME), and immune response, as well as internal reference genes for data normalization has been established. By combining advanced NGS technologies and specific bioinformatic pipelines, we were able to detect and distinguish various immune and stromal cells involved in the complex interaction between the tumor and its microenvironment, allowing for a multifaceted characterization of disease biology and the interrogation of immune response and evasion. We validated the sensitivity, specificity, and repeatability of the panel by qPCR experiments.
CONCLUSIONS: We have established a murine-I/O NGS panel involving 1080 genes to characterize tumor-immune interactions more efficiently and in a cost-effective manner for preclinical studies. This provides an enhanced insight into the TME, with high-content data that has the potential to translate more effectively to the clinic as well as for early identification of immunotherapy companion diagnostics.
Citation Format: Xiaobo Chen, Jia Xue, Qixiang Li, Sheng Guo. NGS-based murine pan-cancer gene expression panel for immuno-oncology and tumor microenvironment studies [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 5963.
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Affiliation(s)
| | - Jia Xue
- Crown Bioscience, Inc., Suzhou, China
| | | | - Sheng Guo
- Crown Bioscience, Inc., Suzhou, China
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220
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Zhou KL, Dong S, Wang K, Fu GB, Niu Y, Xue XN, Guo S. Pediatric massage therapy for restoring pediatric lung function from COVID-19: A protocol for systematic review and meta-analysis. Medicine (Baltimore) 2020; 99:e21581. [PMID: 32872009 PMCID: PMC7437764 DOI: 10.1097/md.0000000000021581] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 07/08/2020] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND The novel coronavirus disease 2019 (COVID-19) has caused an international outbreak of a respiratory illness and grown to be a global public health emergency since patients were first detected in Wuhan, China. Given the rapidly growing pandemic and the overwhelmed medical system, there is an urgent need of alternative medicine to help children relieve symptoms during self-quarantine, and possibly to help increase their chances of survival and recovery from COVID-19. By using various manual techniques at specified locations on the surface of the body, pediatric massage manipulation can unblock meridians, promote the circulation of qi and blood and strengthen resistance to pathogens. METHODS We will search the following electronic databases: Wanfang and Pubmed Database, CNKI, CENTRAL, CINAHL, EMBASE and MEDLINE. Each database will be searched from inception to June 2020. The entire process will include study selection, data extraction, risk of bias assessment and meta-analyses. RESULTS This systematic review will evaluate the existing evidence of pediatric massage therapy for restoring pediatric lung function from COVID-19. The outcomes will include the improvement of pulmonary function and adverse effect. CONCLUSION This proposed systematic review will evaluate the existing evidence and explore the potential role of pediatric massage therapy on the effectiveness and safety in pulmonary function of COVID-19 convalescent children. PROSPERO REGISTRATION NUMBER CRD42020193396.
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Affiliation(s)
- Ke-Lin Zhou
- Dongfang Hospital of Beijing University of Chinese Medicine
| | - Shuo Dong
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine
| | - Kang Wang
- Dongfang Hospital of Beijing University of Chinese Medicine
| | - Guo-Bing Fu
- Dongfang Hospital of Beijing University of Chinese Medicine
| | - Yan Niu
- The Third Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Xiao-Na Xue
- Dongfang Hospital of Beijing University of Chinese Medicine
| | - Sheng Guo
- Dongfang Hospital of Beijing University of Chinese Medicine
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221
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Feng Y, Guo S, Jacob J, Sagaut P. Grid refinement in the three-dimensional hybrid recursive regularized lattice Boltzmann method for compressible aerodynamics. Phys Rev E 2020; 101:063302. [PMID: 32688460 DOI: 10.1103/physreve.101.063302] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 05/05/2020] [Indexed: 11/06/2022]
Abstract
Grid refinement techniques are of paramount importance for computational fluid dynamics approaches relying on the use of Cartesian grids. This is especially true of solvers dedicated to aerodynamics, in which the capture of thin shear layers require the use of small cells. In this paper, a three-dimensional grid refinement technique is developed within the framework of hybrid recursive regularized lattice Boltzmann method (HRR-LBM) for compressible high-speed flows, which is an efficient collide-stream-type method on a compact D3Q19 stencil. The proposed method is successfully assessed considering several test cases, namely, an isentropic vortex propagating through transition interface, shock-vortex interaction with intersection between grid refinement interface and shock corrugation, and transonic flows over three-dimensional DLR-M6 wing with seven levels of grid refinement.
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Affiliation(s)
- Y Feng
- Aix Marseille Univ, CNRS, Centrale Marseille, M2P2, Marseille, France
| | - S Guo
- Aix Marseille Univ, CNRS, Centrale Marseille, M2P2, Marseille, France
| | - J Jacob
- Aix Marseille Univ, CNRS, Centrale Marseille, M2P2, Marseille, France
| | - P Sagaut
- Aix Marseille Univ, CNRS, Centrale Marseille, M2P2, Marseille, France
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222
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Sun Q, Zhang X, Banerjee S, Bao P, Barbry M, Blunt NS, Bogdanov NA, Booth GH, Chen J, Cui ZH, Eriksen JJ, Gao Y, Guo S, Hermann J, Hermes MR, Koh K, Koval P, Lehtola S, Li Z, Liu J, Mardirossian N, McClain JD, Motta M, Mussard B, Pham HQ, Pulkin A, Purwanto W, Robinson PJ, Ronca E, Sayfutyarova ER, Scheurer M, Schurkus HF, Smith JET, Sun C, Sun SN, Upadhyay S, Wagner LK, Wang X, White A, Whitfield JD, Williamson MJ, Wouters S, Yang J, Yu JM, Zhu T, Berkelbach TC, Sharma S, Sokolov AY, Chan GKL. Recent developments in the PySCF program package. J Chem Phys 2020; 153:024109. [DOI: 10.1063/5.0006074] [Citation(s) in RCA: 151] [Impact Index Per Article: 37.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Affiliation(s)
- Qiming Sun
- AxiomQuant Investment Management LLC, Shanghai 200120, China
| | - Xing Zhang
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA
| | - Samragni Banerjee
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, USA
| | - Peng Bao
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Marc Barbry
- Simbeyond B.V., P.O. Box 513, NL-5600 MB, Eindhoven, The Netherlands
| | - Nick S. Blunt
- Department of Chemistry, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Nikolay A. Bogdanov
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany
| | - George H. Booth
- Department of Physics, King’s College London, Strand, London WC2R 2LS, United Kingdom
| | - Jia Chen
- Department of Physics, University of Florida, Gainesville, Florida 32611, USA
- Quantum Theory Project, University of Florida, Gainesville, Florida 32611, USA
| | - Zhi-Hao Cui
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA
| | - Janus J. Eriksen
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, United Kingdom
| | - Yang Gao
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, California 91125, USA
| | - Sheng Guo
- Google Inc., Mountain View, California 94043, USA
| | - Jan Hermann
- FU Berlin, Department of Mathematics and Computer Science, Arnimallee 6, 14195 Berlin, Germany
- TU Berlin, Machine Learning Group, Marchstr. 23, 10587 Berlin, Germany
| | - Matthew R. Hermes
- Department of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, USA
| | - Kevin Koh
- Department of Chemistry and Biochemistry, The University of Notre Dame du Lac, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556, USA
| | - Peter Koval
- Simune Atomistics S.L., Avenida Tolosa 76, Donostia-San Sebastian, Spain
| | - Susi Lehtola
- Department of Chemistry, University of Helsinki, P.O. Box 55 (A. I. Virtasen aukio 1), FI-00014 Helsinki, Finland
| | - Zhendong Li
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Junzi Liu
- Department of Chemistry, The Johns Hopkins University, Baltimore, Maryland 21218, USA
| | - Narbe Mardirossian
- AMGEN Research, One Amgen Center Drive, Thousand Oaks, California 91320, USA
| | | | - Mario Motta
- IBM Almaden Research Center, San Jose, California 95120, USA
| | - Bastien Mussard
- Department of Chemistry, University of Colorado, Boulder, Colorado 80302, USA
| | - Hung Q. Pham
- Department of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, USA
| | - Artem Pulkin
- QuTech and Kavli Institute of Nanoscience, Delft University of Technology, The Netherlands
| | - Wirawan Purwanto
- Information Technology Services, Old Dominion University, Norfolk, Virginia 23529, USA
| | - Paul J. Robinson
- Department of Chemistry, Columbia University, New York, New York 10027, USA
| | - Enrico Ronca
- Istituto per i Processi Chimico Fisici del CNR (IPCF-CNR), Via G. Moruzzi, 1, 56124 Pisa, Italy
| | - Elvira R. Sayfutyarova
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, USA
| | - Maximilian Scheurer
- Interdisciplinary Center for Scientific Computing, Ruprecht-Karls University of Heidelberg, 205 Im Neuenheimer Feld, 69120 Heidelberg, Germany
| | - Henry F. Schurkus
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA
| | - James E. T. Smith
- Department of Chemistry, University of Colorado, Boulder, Colorado 80302, USA
| | - Chong Sun
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA
| | - Shi-Ning Sun
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, California 91125, USA
| | - Shiv Upadhyay
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - Lucas K. Wagner
- Department of Physics and Institute for Condensed Matter Theory, University of Illinois at Urbana-Champaign, Illinois 61801, USA
| | - Xiao Wang
- Center for Computational Quantum Physics, Flatiron Institute, New York, New York 10010, USA
| | - Alec White
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA
| | - James Daniel Whitfield
- Department of Physics and Astronomy, Dartmouth College, Hanover, New Hampshire 03755, USA
| | - Mark J. Williamson
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | | | - Jun Yang
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Jason M. Yu
- Department of Chemistry, University of California, Irvine, 1102 Natural Sciences II, Irvine, California 92697-2025, USA
| | - Tianyu Zhu
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA
| | - Timothy C. Berkelbach
- Department of Chemistry, Columbia University, New York, New York 10027, USA
- Center for Computational Quantum Physics, Flatiron Institute, New York, New York 10010, USA
| | - Sandeep Sharma
- Department of Chemistry, University of Colorado, Boulder, Colorado 80302, USA
| | - Alexander Yu. Sokolov
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, USA
| | - Garnet Kin-Lic Chan
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA
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Wang F, Guo S, Li P. Two novel mutations in the MCM8 gene shared by two Chinese siblings with primary ovarian insufficiency and short stature. Mol Genet Genomic Med 2020; 8:e1396. [PMID: 32652893 PMCID: PMC7507566 DOI: 10.1002/mgg3.1396] [Citation(s) in RCA: 4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 06/02/2020] [Accepted: 06/08/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Minichromosome maintenance complex component 8 (MCM8) is responsible for homologous recombination and DNA double-strand breaks (DSBs) repair and is the cause of primary ovarian insufficiency (POI), which is seldom diagnosed in adolescents and children. METHODS Whole-exome sequencing was performed in a 13-year-old girl, and Sanger sequencing was used to identify potentially pathogenic variants in her sister (aged 6 years and 7 months) and parents. To identify potential pathogenic mutations, DSBs were induced by mitomycin C (MMC), and the DNA repair capacity was evaluated by the histone H2AX phosphorylation level. RESULTS Two novel mutations of MCM8, i.e., c.724T>C (p.C242R) and c.1334C>A (p.S445*), were identified in a 13-year-old girl with POI who exhibited disappeared bilateral ovaries and short stature (height standard difference score [HtSDS] = -3.05), and her sister (aged 6 years and 7 months) with progressive POI whose ovary size decreased from normal to unclear and height growth gradually slowed. In the functional experiments, compared with the wild-type, HeLa cells overexpressing mutant p.C242R and p.S445* showed a higher sensitivity to MMC. Furthermore, the mutant p.S445* has a more deleterious effect on DNA damage repair. CONCLUSION Our results reveal that affected children with the novel pathogenetic mutations p.C242R and p.S445* in the MCM8 gene are characterized by POI, short stature, cancer susceptibility, and genomic instability.
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Affiliation(s)
- Fei Wang
- Department of Endocrinology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Sheng Guo
- Department of Endocrinology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Pin Li
- Department of Endocrinology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
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Abstract
BACKGROUND In the beginning of December 2019, the novel coronavirus pneumonia was first detected in Wuhan, China. Its widespread infectivity and strong pathogenicity has posed a great threat to public health, seriously affecting social production and life. Accumulating evidence suggests that gastrointestinal symptoms, such as diarrhea, are common among patients with COVID-19. Tuina (massage) therapy is 1 of the widely employed complementary and alternative medicine interventions in the world. It can act on the subcutaneous muscular layer, enhance the local blood circulation and tissue metabolism of the skin, thus exert its effects on digestive systems and alleviate aversive diarrhea symptoms. This systematic review and meta-analysis will summarize the current evidence of tuina (massage) used as an intervention for diarrhea symptoms in COVID-19. METHODS We will search the following electronic databases for randomized controlled trials to evaluate the effectiveness and safety of massage therapy in treating exercise-induced fatigue: China National Knowledge Infrastructure, Wanfang and Pubmed Database, Cochrane Central Register of Controlled Trials, Cumulative Index of Nursing and Allied Health Literature, Excerpta Medica database and MEDLINE. Each database will be searched from inception to June 2020. The entire process will include study selection, data extraction, risk of bias assessment and meta-analyses. RESULTS This proposed study will evaluate the effectiveness and safety of massage therapy for diarrhea symptoms in COVID-19 patients. The outcomes will include the improvement of diarrhea symptoms and adverse effect. CONCLUSIONS This proposed systematic review will evaluate the existing evidence on the effectiveness and safety of massage therapy for diarrhea symptoms in COVID-19 patients.Dissemination and ethics: The results of this review will be disseminated through peer-reviewed publication. Because all of the data used in this systematic review and meta-analysis has been published, this review does not require ethical approval. Furthermore, all data will be analyzed anonymously during the review process.
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Affiliation(s)
- Ke-Lin Zhou
- Dongfang Hospital of Beijing University of Chinese Medicine
| | - Shuo Dong
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine
| | - Guo-Bing Fu
- Dongfang Hospital of Beijing University of Chinese Medicine
| | - Shu-Sheng Cui
- Beijing Gulou Hospital of Traditional Chinese Medicine, Beijing, China
| | - Sheng Guo
- Dongfang Hospital of Beijing University of Chinese Medicine
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Abstract
BACKGROUND Exercise-induced fatigue (EF) has been a major area of interest within the field of sports and clinical medicine. Implemented on people's skin, muscles, and joints as an important part of complementary and alternative medicine , massage therapy has a positive effect on the recovery of EF and sports injuries. In this systematic review, we aim to evaluate the effectiveness and safety of massage therapy for patients with EF. METHODS We will search the following electronic databases for randomized controlled trials to evaluate the effectiveness and safety of massage therapy in treating EF: China National Knowledge Infrastructure, Wanfang and PubMed Database, Cochrane Central Register of Controlled Trials, Cumulative Index of Nursing and Allied Health Literature, Excerpta Medica database, and Medical Literature Analysis and Retrieval System Online. Each database will be searched from inception to May 2020. The entire process will include study selection, data extraction, risk of bias assessment and meta-analyses. RESULTS This proposed study will evaluate the effectiveness and safety of massage therapy for patients with EF. The outcomes will include change in fatigue relief and adverse effect. CONCLUSIONS This proposed systematic review will evaluate the existing evidence on the effectiveness and safety of massage therapy for patients with EF. DISSEMINATION AND ETHICS The results of this review will be disseminated through peer-reviewed publication. Because all of the data used in this systematic review and meta-analysis has been published, this review does not require ethical approval. Furthermore, all data will be analyzed anonymously during the review process.
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Affiliation(s)
| | - Shuo Dong
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine
| | | | | | - Shu-Sheng Cui
- Beijing Gulou Hospital of Traditional Chinese Medicine, Beijing, China
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Piao HY, Guo S, Wang Y, Zhang J. Exosome-transmitted lncRNA PCGEM1 promotes invasive and metastasis in gastric cancer by maintaining the stability of SNAI1. Clin Transl Oncol 2020; 23:246-256. [PMID: 32519176 DOI: 10.1007/s12094-020-02412-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [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: 04/18/2020] [Accepted: 05/25/2020] [Indexed: 12/13/2022]
Abstract
PURPOSE Clinically, hypoxia is associated with increased distant metastasis and poor survival in gastric cancer (GC). In this study, we set out from the cellular interaction to further explain the molecular mechanism of invasion in GC cells under hypoxic conditions. METHODS Gastric cancer cells were cultured under 1% O2 (hypoxia-cultured gastric cancer cells, HGC) and 20% O2 condition (normoxic-cultured gastric cancer cells, NGC). NGC was co-cultured with HGC-medium. Scrape and Transwell were used to evaluate invasion and migration. Exosomes from GC were extracted by ultracentrifugation. Electron microscopy images, western-blot used to analyze the size distributions and the number of exosomes. RESULTS HGC-medium induced NGC dissociated. Long non-coding RNA (lncRNA) prostate cancer gene expression marker 1 (PCGEM1) was specifically expressed in HGC exosomes. HGC-derived PCGEM1-riched exosomes could promote the invasion and migration of NGC. On the mechanism, PCGEM1 maintained stability and reduced the degradation of SNAI1, which could induce the epithelial-mesenchymal transition of GC. CONCLUSION LncRNA PCGEM1 was overexpressed in GC cells. And part of the PCGEM1 can be encapsulated into exosomes. These exosomes promoted invasion and migration of other GC cells. We considered PCGEM1 might act as a "scaffold" combined with SNAI1 and prompt the invasion and migration of GC.
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Affiliation(s)
- H-Y Piao
- Medical Oncology Department of Gastrointestinal Cancer, Liaoning Province Cancer Hospital and Institute (Cancer Hospital of China Medical University), No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning, China
| | - S Guo
- Gastric Cancer Department, Liaoning Province Cancer Hospital and Institute (Cancer Hospital of China Medical University), No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning, China
| | - Y Wang
- Gastric Cancer Department, Liaoning Province Cancer Hospital and Institute (Cancer Hospital of China Medical University), No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning, China
| | - J Zhang
- Gastric Cancer Department, Liaoning Province Cancer Hospital and Institute (Cancer Hospital of China Medical University), No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning, China.
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Pi Y, He KZ, Zhang WQ, Dong ZQ, Jiang FG, Jiang KJ, Guo S. [Complexity of Detecting CRISPR/Cas9-Mediated Homologous Recombination in Zebrafish]. Mol Biol (Mosk) 2020; 54:435-444. [PMID: 32492006 DOI: 10.31857/s0026898420030131] [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: 02/28/2019] [Accepted: 11/05/2019] [Indexed: 11/24/2022]
Abstract
Homology-directed (HD) genome modification offers an opportunity to precisely modify the genome. Despite reported successful cases, for many loci, precise genome editing remains challenging and inefficient in vivo. Here we report an effort to precisely knock-in a GFP reporter into gad locus mediated by CRISPR/Cas9 system in the zebrafish Danio rerio. PCR artifact was detected in testing for homologous recombination (HR), but was mitigated by optimizing PCR condition and decreasing the injected targeting plasmid concentration. Under this optimized condition, time course analysis revealed a decline of the HR-positive embryos at embryogenesis progressed. GFP signals also diminished at later developmental stages. The GFP signals were consistent with PCR detection, both of which suggested the loss of targeted insertion events at later stages. Such loss of insertion might be one underlying reason for the inability to obtain germ-line transgenic lines with GFP knocked into the gad locus. Our results suggest that the low HR efficiency associated with CRISPR-mediated knock-in is in part due to loss of insertion after targeted integration into the gad locus.
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Affiliation(s)
- Y Pi
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, 200433 China.,Department of Bioengineering and Therapeutic Sciences, Programs in Human Genetics and Biological Sciences, University of California, San Francisco, CA 94143-2811 USA
| | - K Z He
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, 200433 China
| | - W Q Zhang
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, 200433 China
| | - Z Q Dong
- Department of Bioengineering and Therapeutic Sciences, Programs in Human Genetics and Biological Sciences, University of California, San Francisco, CA 94143-2811 USA.,Huazhong Agricultural University, Wuhan, 430070 China
| | - F G Jiang
- Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720 USA
| | - K J Jiang
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai, Shanghai, 200090 China.,
| | - S Guo
- Department of Bioengineering and Therapeutic Sciences, Programs in Human Genetics and Biological Sciences, University of California, San Francisco, CA 94143-2811 USA.,
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Wei Y, Guo S, Tang J, Wen J, Wang H, Hu X, Gu Q. MicroRNA-19b-3p suppresses gastric cancer development by negatively regulating neuropilin-1. Cancer Cell Int 2020; 20:193. [PMID: 32508529 PMCID: PMC7249695 DOI: 10.1186/s12935-020-01257-0] [Citation(s) in RCA: 8] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 05/12/2020] [Indexed: 02/06/2023] Open
Abstract
Background Gastric cancer (GC) remains one of the most common digestive malignancies worldwide and ranked third causes of cancer-related death. Mounting evidence has revealed that miRNAs exert critical regulatory roles in GC development. Methods Immunohistochemistry (IHC) and western blot assay were performed to determine the protein expression levels of neuropilin-1 (NRP1) and mRNA levels were confirmed by quantitative RT-PCR (qRT-PCR) in GC tissues. Kaplan–Meier analysis was performed to evaluate the prognostic value of NRP1 in GC. Knockdown of NRP1 was conducted to analyse its function in vitro and vivo. Luciferase reporter assay, western blot and qRT-qPCR were employed to identify the miRNAs which directly targeted NRP1. Furthermore, Bioinformatics analysis and experimental verification were used to explore the potential molecular mechanism and signalling pathway. Results In the current study, we revealed that NRP1 was highly expressed in GC tumor tissues and was associated with poor prognosis in GC patients. NRP1 knockdown inhibited GC cell growth, migration and invasion in vitro, while suppressed GC xenograft tumor development in vivo. Bioinformatics analysis predicted that miR-19b-3p down-regulated NRP1 expression by targeting its 3′-UTR. Functional assay demonstrated that miR-19b-3p inhibited GC cell growth, migration and invasion via negatively regulating NRP1. Overexpression NRP1 partially reversed the regulatory effect of miR-19b-3p. Moreover, we showed that miR-19b-3p/NRP1 axis regulated the epithelial-to-mesenchymal transition and focal adhesion in GC, which might contribute the GC development and progression. Conclusions Taken together, our findings suggest a regulatory network of miR-19b-3p/NRP1 in GC development. The miR-19b-3p/NRP1 axis might be further explored as a potential diagnostic and therapeutic target in GC.
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Affiliation(s)
- Yingfeng Wei
- Department of Gastroenterology, Ganzhou People's Hospital, Ganzhou, Jiangxi 341000 China
| | - Sheng Guo
- Department of Liver Diseases, The Fifth People's Hospital of Ganzhou, Ganzhou, Jiangxi 341000 China
| | - Jianhua Tang
- Department of Gastroenterology, Ganzhou People's Hospital, Ganzhou, Jiangxi 341000 China
| | - Jianjun Wen
- Department of Gastroenterology, Ganzhou People's Hospital, Ganzhou, Jiangxi 341000 China
| | - Huifen Wang
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
| | - Xiaobo Hu
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
| | - Qiuping Gu
- Department of Gastroenterology, Ganzhou People's Hospital, Ganzhou, Jiangxi 341000 China
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229
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Xu L, Li P, Guo S, Yuan D. SUN-LB18 Serum 25-Hydroxyvitamin D Is Not Associated With the Type of Central Precocious Puberty in Girls. J Endocr Soc 2020. [PMCID: PMC7208710 DOI: 10.1210/jendso/bvaa046.2012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
[Objective] To evaluate the clinical value of serum 25-hydroxyvitamin D (25OHD) in girls with different types of central precocious puberty (CPP), in order to provide basis for the clinical diagnosis and treatment. [Methods] 340 CPP girls diagnosed in our hospital from January 2016 to January 2018 were enrolled and retrospectively studied. According to the progression of Tanner stage ≥1 during 6 months, bone age(BA) levels were higher than chronological age of more than 1 year. 226 patients were included in the rapidly progressive CPP group (RP-CPP), while 114 patients were included in the slowly progressive CPP group (SP-CPP) as a control. We analyzed the correlation between serum 25OHD levels and the different puberty characteristics (BA, disease course, body mass index (BMI), bone mineral density (BMD), serum LH peak to FSH peak ratio (LHP/FSHP), insulin-like growth factor 1(IGF1)) of two groups. According to sunshine duration, the sampling season was divided into two groups (December to May, June to November), then we compare the correlation between different serum 25OHD levels and season of sampling as well as the different puberty characteristics respectively. [Results] (1) The mean serum 25OHD levels of CPP girls were 15.89±6.87ng/ml. The 25OHD levels of 68 (20.0%), 95 (27.9%) and 167 (49.1%) patients were <10, 10-15 and 16-29 ng/mL, respectively. Only 10 (2.9%) patients had normal 25OHD (>30 ng/mL). (2) No significant difference in serum 25OHD levels between RP-CPP group and SP-CPP group (F =0.809, p=0.369) was found. There is no correlation of BMD and disease course between the two groups (p>0.1). Bone age, BMI, LHP/FSHP and IGF1 levels in RP-CPP group were higher than SP-CPP group (P<0.05). Logistic regression analysis showed that BMI, LHP/FSHP and IGF1 were the independent risk factors for CPP (OR 2.690, 1.005, 3.288, respectively). (3) There were significant differences among different serum 25OHD levels as for season, disease course and IGF1 (p<0.05). The correlation with the season was the highest (r=0.402, p<0.001). [Conclusions] (1) Vitamin D levels are generally insufficient in CPP girls and are not related to different types of CPP. (2) The higher BMI, IGF1, LHP/FSHP levels are, the easier CPP girls will transfer to RP-CPP, but not associated with vitamin D levels. (3) CPP girls suffer from vitamin D deficiency in seasons of winter and spring easilier.
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Affiliation(s)
- Liya Xu
- SHANGHAI JIAOTONG University, Shanghai Children’s Hospital, China
| | - Pin Li
- SHANGHAI JIAOTONG University, Shanghai Children’s Hospital, China
| | - Sheng Guo
- SHANGHAI JIAOTONG University, Shanghai Children’s Hospital, China
| | - Dandan Yuan
- SHANGHAI JIAOTONG University, Shanghai Children’s Hospital, China
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230
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Xu JW, Wang J, Yang K, Guo S, Feng CS, Chen HY, Li HP. FBW7 inhibits nucleus pulposus cells proliferation by downregulation of cyclin E in the intervertebral disc degeneration. Eur Rev Med Pharmacol Sci 2020; 24:4053. [PMID: 32374016 DOI: 10.26355/eurrev_202004_20969] [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: 11/12/2022]
Abstract
The article "FBW7 inhibits nucleus pulposus cells proliferation by downregulation of cyclin E in the intervertebral disc degeneration, by J.-W. Xu, J. Wang, K. Yang, S. Guo, C.-S. Feng, H.-Y. Chen, H.-P. Li, published in Eur Rev Med Pharmacol Sci 2020; 24(2):508-516. DOI: 10.26355/eurrev_202001_20026. PMID: 32016952" has been withdrawn from the authors. The Publisher apologizes for any inconvenience this may cause.
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Affiliation(s)
- J-W Xu
- Department of Orthopedics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
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231
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Pi Y, He KZ, Zhang WQ, Dong ZQ, Jiang FG, Jiang KJ, Guo S. Complexity of Detecting CRISPR/Cas9-Mediated Homologous Recombination in Zebrafish. Mol Biol 2020. [DOI: 10.1134/s0026893320030139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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232
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Tao S, Guo S. Delaying osteoarthritis progression through chondrocyte-targeted delivery of WIKI4 using chondrocyte-derived exosomes. Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.03.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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233
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Lin Y, Guo S, Tong H, Wang Y. P10 Paired Associative Magnetic Stimulation combined with Electroencephalogram in the Functional Connection of Right Frontal and Parietal Cortices. Clin Neurophysiol 2020. [DOI: 10.1016/j.clinph.2019.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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234
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Sun C, Su S, Zhu Y, Guo J, Guo S, Qian D, Yu L, Gu W, Duan JA. Salvia miltiorrhiza stem-leaf active components of salvianolic acids and flavonoids improved the hemorheological disorder and vascular endothelial function on microcirculation dysfunction rats. Phytother Res 2020; 34:1704-1720. [PMID: 32185841 DOI: 10.1002/ptr.6652] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/19/2020] [Accepted: 02/05/2020] [Indexed: 12/22/2022]
Abstract
Microcirculation, which connects macrocirculation and cells between arterioles and venules, plays a major role in the early onset of a variety of diseases. In this article, a dextran-induced microcirculation dysfunction (MCDF) model rats were adopted to evaluate the effects and mechanism of Salvia miltiorrhiza stem-leaf extracts based on plasma and urine metabonomics. The results showed the effective components of S. miltiorrhiza stem-leaf could significantly improve the hemorheology and coagulation index of MCDF rats and callback the expression of endothelin-1 (ET-1), induciblenitric oxide synthase (iNOS), vascularendothelial growth factor (VEGF), P-Selectin, thromboxane A2, 6-keto-PGF1α , TNF-α, and interleukin-1β to control group in MCDF rats. The decrease of microvessel density (MVD) in lung and thymus caused by MCDF was upgraded by Salvia miltiorrhiza stem-leaf. Based on the plasma and urine metabolic data, 20 potential biomarkers were identified. These biomarkers are mainly related to linoleic acid metabolism, glutathione metabolism, pantothenate and coenzyme A biosynthesis, pentose and glucuronate interconversions, pyruvate metabolism, glyoxylate and dicarboxylate metabolism, beta-alanine metabolism, and citrate cycle. The results indicated that the effective components of S. miltiorrhiza stem-leaf can improve the hemorheological disorder and vascular endothelial function. Meanwhile, the effective components can regulate potential biomarkers and correlated metabolic pathway, which can provide guidance for the research and development of new drugs for MCDF.
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Affiliation(s)
- Chengjing Sun
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Shulan Su
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yue Zhu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jianming Guo
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Sheng Guo
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Dawei Qian
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Li Yu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Wei Gu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jin-Ao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
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Chang X, Wei D, Su S, Guo S, Qian S, Yan H, Zhao M, Shang E, Qian D, Sun X, Duan JA. An integrated strategy for rapid discovery and prediction of nucleobases, nucleosides and amino acids as quality markers in different flowering stages of Flos Chrysanthemi using UPLC–MS/MS and FT-NIR coupled with multivariate statistical analysis. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104500] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Guo S, Lu D, Pfeiffer S, Pfeiffer DU. Non-ambulatory dogs with cervical intervertebral disc herniation: single versus multiple ventral slot decompression. Aust Vet J 2020; 98:148-155. [PMID: 32090324 DOI: 10.1111/avj.12908] [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] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 11/23/2019] [Accepted: 12/08/2019] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To evaluate the proportion of non-ambulatory dogs with cervical intervertebral disc herniation (IVDH) in a private clinic and to compare signalment and outcome between those that underwent single or multiple ventral slot decompression (VSD). DESIGN Retrospective cohort study. METHODS After screening 43,378 medical records (January 2010-September 2016), those of 185 dogs with non-ambulatory tetraparesis or tetraplegia along with cervical IVDH that had undergone single (123) or multiple (62) VSD were included in this study. Data on signalment, preoperative neurological status, location of affected intervertebral disc(s), time to ambulation and short-term outcome were compared between single and multiple VSD groups. RESULTS The proportion of non-ambulatory dogs with IVDH was 35.3%. The prevalence of non-ambulation was higher in male dogs (0.56%) than in female dogs (0.26%; P < 0.001) and in neutered dogs than in unneutered dogs (0.51% and 0.27%, respectively, P < 0.001). After surgery, 96.2% of the dogs reached ambulatory status. Dogs with multiple IVDH were older than those with single IVDH. Sex, neutering status or size did not affect the outcome or ambulation status postsurgery. The Pekingese was the most commonly affected breed in both groups. There was no difference in the time to reach ambulation and the presence of neurological deficits after surgery between dogs that underwent single and multiple VSD. CONCLUSIONS In this cohort, dogs undergoing multiple VSD had a good postoperative outcome, and their short-term functional recovery was equal to that of dogs undergoing single ventral slot compression.
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Affiliation(s)
- S Guo
- CityU Veterinary Medical Centre, Sham Shui Po, Hong Kong
| | - D Lu
- CityU Veterinary Medical Centre, Sham Shui Po, Hong Kong
| | - S Pfeiffer
- Jockey Club College of Veterinary Medicine and Life Science, City University of Hong Kong, Kowloon Tong, Hong Kong
| | - D U Pfeiffer
- Jockey Club College of Veterinary Medicine and Life Science, City University of Hong Kong, Kowloon Tong, Hong Kong
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Guo S, Xv J, Li Y, Bi Y, Hou Y, Ding B. Interactive effects of dietary vitamin K 3 and Bacillus subtilis PB6 on the growth performance and tibia quality of broiler chickens with sex separate rearing. Animal 2020; 14:1610-1618. [PMID: 32054553 DOI: 10.1017/s1751731120000178] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Both vitamin K and probiotics can promote the bone health of poultry and mammals. The present study was conducted to investigate the interactive effects between vitamin K3 (VK3) and Bacillus subtilis PB6 on the growth performance and tibia quality of broiler chickens with sex separate rearing. In a 3 × 2 × 2 factorial arrangement, 720 one-day-old broiler chicks (Arbor Acres) were assigned to 12 groups with three levels of dietary VK3 (0, 0.5 and 4.0 mg/kg), with or without probiotic supplementation (500 g/t) and with sex separation (male and female). Each group included 3 replicates with 20 birds per replicate. During day 1 to 21, 0.5 and 4.0 mg/kg of VK3 increased average daily gain (ADG) of all birds and average daily feed intake of male birds (P < 0.05). During day 22 to 42, probiotic supplementation increased the ADG of birds (P < 0.05). Probiotic addition increased the weight, length, diameter and strength of tibia in all birds, and 0.5 and 4.0 mg/kg of VK3 increased the tibial breaking strength of male birds at day 21 (P < 0.05). Vitamin K3 and probiotic synergistically increased tibial breaking strength at day 42 and ash content at day 21 (P < 0.05). Three factors exhibited interactive effects on the chemical composition of tibia at day 42, and female birds fed 4 mg/kg of VK3 and probiotic had the highest contents of ash, calcium and phosphorus (P < 0.05). Bacillus subtilis PB6 increased the serum phosphorus level of male birds at day 21 and serum calcium level of female ones at day 42 (P < 0.05). At day 21, in the probiotic-supplemented birds, serum osteocalcin (OCN) and bone-specific alkaline phosphatase (BALP) were increased by 0 and 4.0 mg/kg of VK3, respectively (P < 0.05). Probiotic increased serum OCN and cooperated with VK3 to increase the serum BALP at day 42 (P < 0.05). Vitamin K3 and probiotic synergistically down-regulated the mRNA expression of Runt-related transcription factor 2 and OCN at day 21 (P < 0.05). Vitamin K3 down-regulated the alkaline phosphatase (liver/bone/kidney) expression in male birds at day 21 and 42, but probiotic up-regulated the expression of these genes at day 42 (P < 0.05). In conclusion, VK3 and B. subtilis PB6 promoted the growth performance of broilers during starter and grower phases, respectively. They synergistically improved the physical and chemical traits of tibias, especially in grower phase, by modulating calcium and phosphorus metabolism as well as osteogenic gene expression.
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Affiliation(s)
- S Guo
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan430023, China
| | - J Xv
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan430023, China
| | - Y Li
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan430023, China
| | - Y Bi
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan430023, China
| | - Y Hou
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan430023, China
| | - B Ding
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan430023, China
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Hu X, Luo W, Hu J, Guo S, Huang W, Scott MR, Wiest R, Dahlweid M, Reyes M. Brain SegNet: 3D local refinement network for brain lesion segmentation. BMC Med Imaging 2020; 20:17. [PMID: 32046685 PMCID: PMC7014943 DOI: 10.1186/s12880-020-0409-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [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: 09/12/2019] [Accepted: 01/03/2020] [Indexed: 11/20/2022] Open
Abstract
MR images (MRIs) accurate segmentation of brain lesions is important for improving cancer diagnosis, surgical planning, and prediction of outcome. However, manual and accurate segmentation of brain lesions from 3D MRIs is highly expensive, time-consuming, and prone to user biases. We present an efficient yet conceptually simple brain segmentation network (referred as Brain SegNet), which is a 3D residual framework for automatic voxel-wise segmentation of brain lesion. Our model is able to directly predict dense voxel segmentation of brain tumor or ischemic stroke regions in 3D brain MRIs. The proposed 3D segmentation network can run at about 0.5s per MRIs - about 50 times faster than previous approaches Med Image Anal 43: 98–111, 2018, Med Image Anal 36:61–78, 2017. Our model is evaluated on the BRATS 2015 benchmark for brain tumor segmentation, where it obtains state-of-the-art results, by surpassing recently published results reported in Med Image Anal 43: 98–111, 2018, Med Image Anal 36:61–78, 2017. We further applied the proposed Brain SegNet for ischemic stroke lesion outcome prediction, with impressive results achieved on the Ischemic Stroke Lesion Segmentation (ISLES) 2017 database.
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Affiliation(s)
- Xiaojun Hu
- Malong Technologies, Shenzhen, China.,Shenzhen Malong Artificial Intelligence Research Center, Shenzhen, China
| | - Weijian Luo
- Department of Neurosurgery, Second Clinical Medical College of Jinan University (Shenzhen People's Hospital), Shenzhen, China
| | - Jiliang Hu
- Department of Neurosurgery, Second Clinical Medical College of Jinan University (Shenzhen People's Hospital), Shenzhen, China.
| | - Sheng Guo
- Malong Technologies, Shenzhen, China.,Shenzhen Malong Artificial Intelligence Research Center, Shenzhen, China
| | - Weilin Huang
- Malong Technologies, Shenzhen, China. .,Shenzhen Malong Artificial Intelligence Research Center, Shenzhen, China.
| | - Matthew R Scott
- Malong Technologies, Shenzhen, China.,Shenzhen Malong Artificial Intelligence Research Center, Shenzhen, China
| | - Roland Wiest
- Imaging A.I. Lab, Insel Data Science Center, Bern University Hospital, Bern, Switzerland
| | - Michael Dahlweid
- Imaging A.I. Lab, Insel Data Science Center, Bern University Hospital, Bern, Switzerland
| | - Mauricio Reyes
- Imaging A.I. Lab, Insel Data Science Center, Bern University Hospital, Bern, Switzerland
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Ma X, Zhu Z, Guo S, Duan J. The effect of deoxyschizandrin on chronic unpredictable mild stress-induced depression. Biotechnol Appl Biochem 2020; 68:52-59. [PMID: 31985079 DOI: 10.1002/bab.1893] [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] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 01/23/2020] [Indexed: 01/17/2023]
Abstract
The purpose of the present study was to evaluate the antidepressant effect of deoxyschizandrin (DEO) in chronic unpredictable mild stress (CUMS)-induced mice. The mice were subjected to CUMS paradigm for 8 weeks. From the sixth week, the mice were intragastrically treated with DEO once daily for continuous 3 weeks. The behavior tests including sucrose preference test (SPT), forced swimming test (FST), tail suspension test (TST), and open field test were conducted. Additionally, the expressions of TLR4, MyD88, TRAF6, p-NF-κBp65, NLRP3, cleaved caspase-1, cleaved IL-1β, GluR, and PSD95 in hippocampus were detected by western blot. The concentrations of IL-6 and TNF-α in hippocampus were determined by enzyme linked immune sorbent assay (ELISA). The dendritic spine density was observed by Golgi-Cox staining. As a result, the treatment with DEO relieved anhedonia in SPT, and reduced immobile duration in FST and TST. DEO treatment effectively attenuated the CUMS-caused alterations of TLR4, MyD88, TRAF6, p-NF-κBp65, NLRP3, cleaved caspase-1, cleaved IL-1β, GluR, and PSD95. Furthermore, DEO could reduce the hippocampal inflammatory cytokine content and increase the density of dendritic spine. In conclusion, the present work indicated that DEO exhibited antidepressant effect on CUMS-induced depressive mice, which was possible due to the TLR4/NF-κB/NLRP3 pathway and the amelioration of dendritic spine density through GluR/PSD95 cascade.
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Affiliation(s)
- Xinfei Ma
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Zhenhua Zhu
- Institute of Mental Health, Suzhou Psychiatric Hospital, The Affiliated Guangji Hospital of Soochow University, Suzhou, China
| | - Sheng Guo
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jinao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
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Xu JW, Wang J, Yang K, Guo S, Feng CS, Chen HY, Li HP. FBW7 inhibits nucleus pulposus cells proliferation by downregulation of cyclin E in the intervertebral disc degeneration. Eur Rev Med Pharmacol Sci 2020; 24:508-516. [PMID: 32016952 DOI: 10.26355/eurrev_202001_20026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE TF-box and WD repeat domain-containing 7 (FBW7), a component of SCF ubiquitin ligase complex, usually acts as a tumor suppressor because it has an ability in the inhibition of cell proliferation. Nevertheless, the role of FBW7 in intervertebral disc degeneration (IDD) is not quite understood. MATERIALS AND METHODS The total protein and RNA were isolated from patients' disc tissues. WB was carried out to analyze the collagen II and FBW7 protein levels of different Pfirrmann grades disc degeneration. Reverse transcription-polymerase chain reaction (RT-PCR) was used to test the collagen II and FBW7 mRNA expression in these disc samples. NP cells were transfected with siRNA-FWB7 to downregulate the FBW7 expression. SiRNA-NC was used as the sham group. Cyclin E, E2F1, and E2F2 were analyzed with WB and RT-PCR. RESULTS In this study, different kinds of degenerated disc tissues were analyzed, and it was found that FBW7 was overexpressed in much severe degeneration condition, which was also proved by the IL-1β stimuli nucleus pulposus (NP) cells degeneration model in vitro. Interestingly, the results showed that FBW7 suppression could reverse the degeneration of NP cells. Furthermore, we found that FBW7 induced NP cell cycle arrest in the G1 phase of and inhibited cell proliferation by upregulating p27 expression in vitro. The overexpression of p27 resulted in the inhibition of cyclin E, which promotes cell proliferation. CONCLUSIONS Taken together, our study uncovered that FBW7 played an essential inhibitory role in NP cells proliferation, providing new insights that FBW7 may be a potential strategy for IDD treatments.
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Affiliation(s)
- J-W Xu
- Department of Orthopedics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.
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Huan H, Jiang L, Tang L, Wang Y, Guo S. Isolation and characterization of Streptococcus suis strains from swine in Jiangsu province, China. J Appl Microbiol 2020; 128:1606-1612. [PMID: 31981255 DOI: 10.1111/jam.14591] [Citation(s) in RCA: 4] [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: 10/20/2019] [Revised: 12/25/2019] [Accepted: 01/17/2020] [Indexed: 11/29/2022]
Abstract
AIMS The aim of this study is to investigate Streptococcus suis strains present in Jiangsu province, China. METHODS AND RESULTS In all, 1650 nasal and anal swab samples and 100 tonsils were collected from clinically healthy swine. Culture characteristics, colony morphology and PCR-based analysis of the glutamate dehydrogenase (gdh) gene were performed for S. suis identification, and eight isolates were confirmed to be S. suis. The isolates serogroups were identified by agglutinating test, including 4, 7, 3, 5 and 8. Gene profiling by PCR showed that the manN, purD, orf2, gdh genes were conserved among the isolates and that 50% of the isolates carried dltA, pgdA, srtA and sspA. Antimicrobial susceptibility test showed the isolates displayed resistance to clindamycin, erythromycin, tetracycline, penicillin G, vancomycin and linezolid; while none was resistant to chloramphenicol, multi-drug resistance was seen in most of the isolates. Finally, the LD50 (assessed by zebrafish) of isolates RD105 was 2·6431 × 105 and HA24 was 7·1198 × 106 , which showed RD105 more virulent and was consistent with the results of virulence factor identification. CONCLUSIONS There is a very low proportion of S. suis in the healthy pigs. The virulence factors were related to pathogenicity. Bacteria in Nantong possess greater virulence potential than those in Huaian. SIGNIFICANCE AND IMPACT OF THE STUDY Systematic investigation of S. suis provided the most basic theoretical support for the prevention and control of swine streptococcosis.
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Affiliation(s)
- H Huan
- Huaiyin Normal University, College of Life Sciences, Huaian, Jiangsu, China
| | - L Jiang
- Yangzhou University, College of Veterinary Medicine, Yangzhou, Jiangsu, China
| | - L Tang
- Huaiyin Normal University, College of Life Sciences, Huaian, Jiangsu, China
| | - Y Wang
- Yangzhou University, College of Veterinary Medicine, Yangzhou, Jiangsu, China
| | - S Guo
- Huaiyin Normal University, College of Life Sciences, Huaian, Jiangsu, China
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Cooper MA, Sapp AW, Guo S, Vogler TJ. Imaging perturbed shock propagation in powders. Rev Sci Instrum 2020; 91:025109. [PMID: 32113425 DOI: 10.1063/1.5131348] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 02/01/2020] [Indexed: 06/10/2023]
Abstract
A novel experimental methodology is presented to study the deviatoric response of powders in shock regimes. The powders are confined to a cylindrical wedge volume, and a projectile-driven shock wave with a sinusoidally varying front propagates through the powder. The perturbed shock wave exhibits a damping behavior due to irreversible processes of viscosity and strength (deviatoric) of the powder with propagation through increasing powder thicknesses. The inclined surface of the wedge is polished and coated to establish a diffuse surface suitable for reflecting incident laser light into a high-speed camera imaging at 5 MHz. Images of the contrast loss upon shock wave arrival at the observation surface are post-processed for qualitative and quantitative information. New data of shock damping behavior with parameters of perturbation wavelength and initial shock strength are presented for powders of copper, tantalum, and tungsten carbide as well as their mixtures. We present the first full-field images showing additional spatial disturbances on the perturbed shock front that appear dependent on particle material and morphology.
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Affiliation(s)
- M A Cooper
- Explosive Technologies, Sandia National Laboratories, Albuquerque, New Mexico 87185, USA
| | - A W Sapp
- Explosive Technologies, Sandia National Laboratories, Albuquerque, New Mexico 87185, USA
| | - S Guo
- Explosive Technologies, Sandia National Laboratories, Albuquerque, New Mexico 87185, USA
| | - T J Vogler
- Mechanics of Materials, Sandia National Laboratories, Livermore, California 94551, USA
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243
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Qiu SZ, Zeng F, Zhang S, Su SL, Guo S, Qian DW, Zhao MZ, Duan JA. [Fermentation of cellulase with multiple types of Salvia miltiorrhiza residues and other solid wastes from Chinese materia medica industrialization]. Zhongguo Zhong Yao Za Zhi 2020; 45:890-895. [PMID: 32237490 DOI: 10.19540/j.cnki.cjcmm.20191217.303] [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] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The solid wastes of Chinese materia dedica industrialization represented by Salvia miltiorrhiza residues have a strong small-molecule bio-recalcitrance in the process of high-value utilization of biotransformation. Highly tolerant strains were bred to break bio-recalcitrance of Salvia miltiorrhiza residues and produce high-value added cellulose, which has a significant significance for recycling and industrial utilization of solid waste. In this study, a strain of fungus, Penicillium expansum SZ13, was found with small-molecule antibacterial substance tanshinone contained in Salvia miltiorrhiza residues by a biological method. The optimal enzyme production process and peak period of SZ13 were determined. It was found that SZ13 could maintain peak enzyme production for 5 days by degrading residues under the conditions of temperature 35 ℃, rotation speed 180 r·min~(-1), 5% of residues addition, and 5% seed solution addition. Meanwhile, the ability of SZ13 to degrade the enzyme production of multiple types of residues was explored. The results showed a high enzyme activity and stable enzyme production of SZ13 in the process of degrading residues. SZ13 could efficiently utilize various types of Chinese medicine residues, such as Salvia miltiorrhiza residues, to realize the high-value utilization of cellulose in multiple types of residues.
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Affiliation(s)
- Shou-Zhe Qiu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Key Laboratory of Chinese Medicinal Resources Recycling Utilization under State Administration of Traditional Chinese Medicine,National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine Nanjing 210023, China
| | - Fei Zeng
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Key Laboratory of Chinese Medicinal Resources Recycling Utilization under State Administration of Traditional Chinese Medicine,National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine Nanjing 210023, China
| | - Sen Zhang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Key Laboratory of Chinese Medicinal Resources Recycling Utilization under State Administration of Traditional Chinese Medicine,National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine Nanjing 210023, China
| | - Shu-Lan Su
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Key Laboratory of Chinese Medicinal Resources Recycling Utilization under State Administration of Traditional Chinese Medicine,National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine Nanjing 210023, China
| | - Sheng Guo
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Key Laboratory of Chinese Medicinal Resources Recycling Utilization under State Administration of Traditional Chinese Medicine,National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine Nanjing 210023, China
| | - Da-Wei Qian
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Key Laboratory of Chinese Medicinal Resources Recycling Utilization under State Administration of Traditional Chinese Medicine,National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine Nanjing 210023, China
| | - Ming-Zhe Zhao
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Key Laboratory of Chinese Medicinal Resources Recycling Utilization under State Administration of Traditional Chinese Medicine,National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine Nanjing 210023, China
| | - Jin-Ao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Key Laboratory of Chinese Medicinal Resources Recycling Utilization under State Administration of Traditional Chinese Medicine,National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine Nanjing 210023, China
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Liu H, Shang N, Chhetri JK, Liu L, Guo W, Li P, Guo S, Ma L. A Frailty Screening Questionnaire (FSQ) to Rapidly Predict Negative Health Outcomes of Older Adults in Emergency Care Settings. J Nutr Health Aging 2020; 24:627-633. [PMID: 32510116 DOI: 10.1007/s12603-020-1374-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 01/19/2023]
Abstract
BACKGROUND Frailty, at the core of geriatric medicine, is an important concept underpinning health problems but the rapid and valid measurement of frailty for older adults in the Emergency Department (ED) is lacking in China. The Frailty Screening Questionnaire (FSQ), has been shown to be a simple, rapid and practical tool to identify frailty in both community and inpatients settings, yet its utility in acute care settings is not well understood. OBJECTIVE To determine whether FSQ is useful to identify frailty and predict adverse outcomes in an emergency care setting. DESIGN AND PARTICIPANTS This prospective study included 350 adults aged 60 and over and admitted to the ED. MEASUREMENTS The FSQ questionnaire which assessed self-reported slowness, weakness, inactivity, exhaustion, and weight loss was used to rapidly recognize frailty. FRAIL, Clinical frailty score (CFS), activities of daily living (ADL) and nutrition risk screening 2002 were also assessed. Outcome measures included all-cause 28-day mortality, ADL dependency, mechanical ventilation, length of hospital stay, and ICU readmissions 30 and 90 days after discharge. Cox proportional hazard model was used for survival comparison. RESULTS The prevalence of FSQ frailty and prefrailty in older adults were 44.6% and 30.9% respectively in the emergency setting. FSQ frailty was associated with increasing age, chronic diseases, malnutrition risk, poor physical function and worse outcomes indicated by higher 28-d mortality, ADL dependency, mechanical ventilation, length of hospital stay, and ICU readmissions after discharge. The Kappa coefficient between the FSQ and FRAIL was 0.552. FSQ score was negatively correlated with grip strength and positively correlated with Barthel index, length of hospital stay and CFS score. Cox regression adjusted by epidemiological variables and chronic diseases showed FSQ and all components predicted mortality except weight loss. CONCLUSION The FSQ is a rapid and useful tool to screen frailty and an effective tool to predict mortality in busy emergency settings.
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Affiliation(s)
- H Liu
- Dr. Lina Ma, Department of Geriatrics, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing 100053, China, E-mail: ; Dr. Shubin Guo, Department of Emergency Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing 100020, China, E-mail:
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Duan JA, Guo S, Yan H, Zhao M, Su SL, Huang LQ. [Value discovery and resource utilization of by-products in production process of medicinal materials are important ways for poverty alleviation with Chinese herbal medicine industry]. Zhongguo Zhong Yao Za Zhi 2020; 45:285-289. [PMID: 32237310 DOI: 10.19540/j.cnki.cjcmm.20191104.107] [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] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Poverty alleviation by Chinese herbal medicine industry is an important way to implement the major strategic plan of the government and to effectively alleviate poverty and increase income of poor farmers in areas with high resource's endowment of Chinese medicinal materials. Based on the analysis of the existing achievements and problems in poverty alleviation by Chinese herbal medicine industry, this paper proposes that improving the comprehensive benefits of Chinese herbal medicine industry is an important direction for poverty alleviation in the poverty-stricken areas with the high endowment of traditional Chinese medicine resources in the future. Then, based on the concept of resource recycling of traditional Chinese medicinal materials, the feasibility and strategies of utilizing by-products in the production process of Chinese medicinal materials and expanding the ways of poverty alleviation were analyzed and discussed. The aim of all these works was to provide the support for enhancing the comprehensive competitiveness of the industry in poverty-stricken regions, enlarging the poverty alleviation effect of Chinese herbal medicine industry, and consolidating the achievements of poverty alleviation.
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Affiliation(s)
- Jin-Ao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine,State Administration of Traditional Chinese Medicine, Key Laboratory of Chinese Medicinal Resources Recycling Utilization,Nanjing University of Chinese Medicine Nanjing 210023, China
| | - Sheng Guo
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine,State Administration of Traditional Chinese Medicine, Key Laboratory of Chinese Medicinal Resources Recycling Utilization,Nanjing University of Chinese Medicine Nanjing 210023, China
| | - Hui Yan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine,State Administration of Traditional Chinese Medicine, Key Laboratory of Chinese Medicinal Resources Recycling Utilization,Nanjing University of Chinese Medicine Nanjing 210023, China
| | - Ming Zhao
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine,State Administration of Traditional Chinese Medicine, Key Laboratory of Chinese Medicinal Resources Recycling Utilization,Nanjing University of Chinese Medicine Nanjing 210023, China
| | - Shu-Lan Su
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine,State Administration of Traditional Chinese Medicine, Key Laboratory of Chinese Medicinal Resources Recycling Utilization,Nanjing University of Chinese Medicine Nanjing 210023, China
| | - Lu-Qi Huang
- State Key Laboratory Breeding Base of Dao-di Herbs,National Resource Center for Chinese Materia Medical, China Academy of Chinese Medical Sciences Beijing 100700, China
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Xue J, Li HQX, Guo S. Abstract A026: An automated biomarker discovery platform based on in vitro pharmacology raw data. Mol Cancer Ther 2019. [DOI: 10.1158/1535-7163.targ-19-a026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
In vitro pharmacology studies using cultures of biological models, such as cancer cell lines or lately organoids in the oncology field, are commonly used to assess drug efficacy. The baseline genetic or epigenetic features, including those reflective of the original patient tissue, can be characterized by genomic profiling of the respective models, and correlated to the efficacy observed during pharmacology studies to discover potential predictive biomarkers. On the other hand, the changes of these features following specific treatment (pharmacodynamic changes) can be used to explore the drug mechanism of action (MOA) or potential drug targets. Discovery and/or validation of relevant biomarkers using these in vitro preclinical pharmacology studies are obviously critical in drug discovery/development. Although important, the biomarker discovery and validation process can be complex and labor intensive, and currently there are few robust tools that can be used readily to take on the task of automated computation discovery. To this end, we have established an automated biomarker discovery platform for in vitro preclinical pharmacology studies by implementing a variety of machine learning algorithms and statistical methods, combining them with Shiny package in R, an integrated suite of software facilities for data manipulation, calculation and graphical display. This platform is user-friendly and efficiently manages raw data uploads, data conversions, drug efficacy overview, biomarker discovery analysis as well as data report generation. In conclusion, our platform provides a new solution for precision biomarker discovery in preclinical, especially immune-oncology studies.
Citation Format: Jia Xue, Henry QX Li, Sheng Guo. An automated biomarker discovery platform based on in vitro pharmacology raw data [abstract]. In: Proceedings of the AACR-NCI-EORTC International Conference on Molecular Targets and Cancer Therapeutics; 2019 Oct 26-30; Boston, MA. Philadelphia (PA): AACR; Mol Cancer Ther 2019;18(12 Suppl):Abstract nr A026. doi:10.1158/1535-7163.TARG-19-A026
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Affiliation(s)
- Jia Xue
- 1Crown Bioscience Inc., Suzhou
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247
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Patro S, Niyongabo A, Guo S, Wu X, Boritz E, Deeks S, Maldarelli F, Hughes S, Coffin J, Kearney M. HIV proviruses with identical sequences arise from cell expansion and infection by a common ancestor virus. J Virus Erad 2019. [DOI: 10.1016/s2055-6640(20)30140-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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248
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Mao B, Guo S, Chen BX, Ouyang DX, Li H. Abstract A025: Comparative analysis of proteomic/transcriptomic profiles of a panel of GC-PDXs. Mol Cancer Ther 2019. [DOI: 10.1158/1535-7163.targ-19-a025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Cancers are heterogeneous diseases, requiring individualized treatment approaches and relying on predictive biomarkers. Gastric carcinoma (GC), a common cancer with high fatality, particularly in East Asia, urgently needs effective treatment options, particularly targeted therapy. Patient-derived xenografts (PDXs) are widely accepted as predictive models for translational research, including identifying predictive biomarkers to guide GC-treatment (Zhang et al., 2013). The comprehensive annotation of PDXs pathologically, genomically and proteomically, at baseline and/or upon treatment (pharmacodynamics, or PD), are essential for biomarker discovery and validation. We previously described establishment of a panel of GC-PDX with transcriptome annotation and utilized these models for biomarker discovery predictive of the cetuximab response (Zhang et al., 2013). The present study aims to comparing the genomic and proteomic profiles of the GC-PDX panel and their, usage in translational research. Method. 48 GC-PDX tumor are subjected to transcriptome (RNASeq) sequencing and whole proteomic analysis using high-throughput label-free MS-based technology. We calculate spearman’s correlation coefficient (cc) between relative protein abundance metric (ifot) and mRNA expression metric (FPKM) per proteomic datasets and RNASeq datasets, respectively, to assess their consistent/differential features. We also tested an integrated -omics approach by DIABLO algorithm (Singh et al., 2017) for predictive biomarker discovery using mouse clinical trial data. Results. The correlation between mRNA and protein abundance was moderate (Spearman’s cc~0.55) consistent across all tested PDXs. Genes with high mRNA expression levels have weaker correlations with their corresponding protein abundance. This could be attributed to stronger post-transcriptional control on protein expression for these highly transcribed genes. Gene ontology (GO) over representation analysis were conducted for two subsets of genes: 1) ribosome and cadherin binding related proteins that are highly expressed at both mRNA and protein level, while 2) histones and other DNA binding genes have high protein abundance but low mRNA expression. We also conducted predictive biomarker analysis using the cetuximab (an EGFR inhibitor) GC-PDX trial data, where we previously demonstrated high correlation between EGFR mRNA expression and sensitivity to cetuximab. Although EGFR protein abundance is positively correlated with cetuximab efficacy, the correlation seems weaker than for their mRNA counterpart in this case. We also used the DIABLO algorithm for the integration of both proteomics and transcriptome data, which aims to identify a multi-omics signature that is maximally correlated across data types. A signature including 10-mRNA expression/5-protein abundance has been identified, with high inter data type correlation (0.94)/good discrimination power. Conclusion. The variability of protein abundance can be partially explained by mRNA level, however, post-transcriptional regulation could play important role on protein expression especially for highly transcribed genes. Proteomics data may provide complimentary information to transcriptome data for predictive biomarker analysis.
Citation Format: Binchen Mao, Sheng Guo, Bonnie Xiaobo Chen, Davy Xuesong Ouyang, Henry Li. Comparative analysis of proteomic/transcriptomic profiles of a panel of GC-PDXs [abstract]. In: Proceedings of the AACR-NCI-EORTC International Conference on Molecular Targets and Cancer Therapeutics; 2019 Oct 26-30; Boston, MA. Philadelphia (PA): AACR; Mol Cancer Ther 2019;18(12 Suppl):Abstract nr A025. doi:10.1158/1535-7163.TARG-19-A025
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Hu W, Li M, Lu W, Guo S, Li J. Evaluation of MASTDISCS combi Carba plus for the identification of metallo-β-lactamases, KPC and OXA-48 carbapenemase genes in Enterobacteriaceae clinical isolates. Lett Appl Microbiol 2019; 70:42-47. [PMID: 31642085 DOI: 10.1111/lam.13240] [Citation(s) in RCA: 5] [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: 07/15/2019] [Revised: 10/07/2019] [Accepted: 10/21/2019] [Indexed: 11/30/2022]
Abstract
The increasing frequency of class A KPC enzymes, class B metallo-β-lactamases (MBLs) and class D OXA-48 enzymes in Enterobacteriaceae makes their early identification urgent. A simple commercial MASTDISCS combi Carba plus disc system (MAST-Carba plus) was designed for the identification of MBLs, KPC and OXA-48 carbapenemase genes in Enterobacteriaceae. To validate the MAST-Carba plus, a total of 77 isolates of carbapenemase-producing Enterobacteriaceae (CPE) and 84 isolates of noncarbapenemase-producing Enterobacteriaceae (non-CPE) were selected for differentiation of the genes of Enterobacteriaceae by MAST-Carba plus. Meanwhile, the carbapenemase genes such as blaKPC , blaIMP , blaVIM , blaNDM-1 and blaOXA-48 were detected by PCR (polymerase chain reaction). Thus, when considered on the basis of PCR results, the sensitivity of MAST-Carba plus detection of KPC strains is 82·3%, the specificity is 100·0%, the positive predictive value is 100·0% and the negative predictive value is 92·4%. For MBLs strains, the sensitivity is 100·0%, the specificity is 97·1%, the positive predictive value is 84·6% and the negative predictive value is 100·0%. For OXA-48 strains, the sensitivity is 100·0%, the specificity is 99·4%, the positive predictive value is 80·0% and the negative predictive value is 100·0%. Our findings suggest that MAST-Carba plus is a rapid and promising method for identifying the MBLs, KPC and OXA-48 carbapenemase genes in Enterobacteriaceae, which could be exploited in basic microbiology laboratory to prevent the transmission of CPE. SIGNIFICANCE AND IMPACT OF THE STUDY: Not only detection of carbapenemases but also identification of their genes accurately and rapidly in Enterobacteriaceae is still a major challenge for clinical laboratories in order to prevent the transmission of carbapenemase-producing Enterobacteriaceae (CPE). Therefore, this study aimed to evaluate the performance of a new rapid method (MASTDISCS combi Carba plus) for the identification of metallo-β-lactamases (MBLs), KPC and OXA-48 carbapenemase genes in Enterobacteriaceae clinical isolates.
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Affiliation(s)
- W Hu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - M Li
- Department of Laboratory Medicine, Daping Hospital, Army Medical University, Chongqing, China
| | - W Lu
- Department of Laboratory Medicine, Daping Hospital, Army Medical University, Chongqing, China
| | - S Guo
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - J Li
- Department of Laboratory Medicine, Daping Hospital, Army Medical University, Chongqing, China
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Dong Y, Guo S, Mao H, Xu C, Xie Y, Cheng C, Mao X, Deng J, Pan G, Sun J. The Growth of Graphene on Ni-Cu Alloy Thin Films at a Low Temperature and Its Carbon Diffusion Mechanism. Nanomaterials (Basel) 2019; 9:E1633. [PMID: 31744237 PMCID: PMC6915519 DOI: 10.3390/nano9111633] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 11/12/2019] [Accepted: 11/13/2019] [Indexed: 11/18/2022]
Abstract
Carbon solid solubility in metals is an important factor affecting uniform graphene growth by chemical vapor deposition (CVD) at high temperatures. At low temperatures, however, it was found that the carbon diffusion rate (CDR) on the metal catalyst surface has a greater impact on the number and uniformity of graphene layers compared with that of the carbon solid solubility. The CDR decreases rapidly with decreasing temperatures, resulting in inhomogeneous and multilayer graphene. In the present work, a Ni-Cu alloy sacrificial layer was used as the catalyst based on the following properties. Cu was selected to increase the CDR, while Ni was used to provide high catalytic activity. By plasma-enhanced CVD, graphene was grown on the surface of Ni-Cu alloy under low pressure using methane as the carbon source. The optimal composition of the Ni-Cu alloy, 1:2, was selected through experiments. In addition, the plasma power was optimized to improve the graphene quality. On the basis of the parameter optimization, together with our previously-reported, in-situ, sacrificial metal-layer etching technique, relatively homogeneous wafer-size patterned graphene was obtained directly on a 2-inch SiO2/Si substrate at a low temperature (~600 °C).
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Affiliation(s)
- Yibo Dong
- Key Laboratory of Optoelectronics Technology, College of Microelectronics, Beijing University of Technology, Beijing 100124, China; (Y.D.); (Y.X.); (J.D.); (G.P.)
| | - Sheng Guo
- Department of Industrial and Materials Science, Chalmers University of Technology, 41296 Gothenburg, Sweden;
| | - Huahai Mao
- Materials Science and Engineering, KTH Royal Institute of Technology, Brinellvägen 23, 10044 Stockholm, Sweden;
- Thermo-Calc Software AB, Råsundavägen 18, 16967 Solna, Sweden
| | - Chen Xu
- Key Laboratory of Optoelectronics Technology, College of Microelectronics, Beijing University of Technology, Beijing 100124, China; (Y.D.); (Y.X.); (J.D.); (G.P.)
| | - Yiyang Xie
- Key Laboratory of Optoelectronics Technology, College of Microelectronics, Beijing University of Technology, Beijing 100124, China; (Y.D.); (Y.X.); (J.D.); (G.P.)
| | - Chuantong Cheng
- State Key Laboratory of Integrated Optoelectronics, Institute of Semiconductor, Chinese Academy of Sciences, Beijing 100083, China; (C.C.); (X.M.)
| | - Xurui Mao
- State Key Laboratory of Integrated Optoelectronics, Institute of Semiconductor, Chinese Academy of Sciences, Beijing 100083, China; (C.C.); (X.M.)
| | - Jun Deng
- Key Laboratory of Optoelectronics Technology, College of Microelectronics, Beijing University of Technology, Beijing 100124, China; (Y.D.); (Y.X.); (J.D.); (G.P.)
| | - Guanzhong Pan
- Key Laboratory of Optoelectronics Technology, College of Microelectronics, Beijing University of Technology, Beijing 100124, China; (Y.D.); (Y.X.); (J.D.); (G.P.)
| | - Jie Sun
- Key Laboratory of Optoelectronics Technology, College of Microelectronics, Beijing University of Technology, Beijing 100124, China; (Y.D.); (Y.X.); (J.D.); (G.P.)
- Quantum Device Physics Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology, 41296 Gothenburg, Sweden
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