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Tian C, Wang L, Liu M, Liu J, Qiu M, Chen Y. Isolation and Identification of Chicken-Derived Lactic Acid Bacteria: In Vitro Probiotic Properties and Antagonistic Effects against Salmonella pullorum, Staphylococcus aureus, and Escherichia coli. Microorganisms 2024; 12:795. [PMID: 38674739 PMCID: PMC11052321 DOI: 10.3390/microorganisms12040795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 03/28/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
The development of probiotics capable of quickly colonizing the intestines of animals is important in promoting the healthy growth of livestock. The aim of this study was to screen lactic acid bacteria (LAB) from the intestinal microbiota of chickens with potential applications, and to evaluate their probiotic properties and antagonistic abilities against Salmonella pullorum, Staphylococcus aureus, and Escherichia coli. The results showed that a total of 79 strains with the characteristics of LAB were isolated from the chicken cecum microbiota, of which 7 strains exhibited strong inhibitory activity against S. pullorum, S. aureus, and E. coli. Performing 16s rDNA sequencing revealed that these seven strains were Lactiplantibacillus pentosus (n = 1), Lactiplantibacillus plantarum (n = 3), Lactiplantibacillus paraplantarum (n = 1), Lactiplantibacillus argentoratensis (n = 1), and Lactiplantibacillus fabifermentans (n = 1). Among them, L. pentosus R26 and L. plantarum R32 exhibited superior antibacterial activity. These two strains demonstrated high lactic acid production ability, with survival rates of 86.29% and 87.99% after 3 h of treatment at pH 1.5, 86.66% and 85.52% after 3 h of treatment with 0.5% bile salts, 90.03% and 88.16% after 2 h of treatment with simulated gastric fluid, and 98.92% and 98.22% after 2 h of treatment with simulated intestinal fluid, respectively. Co-cultivation with L. pentosus R26 for 24 h resulted in 50% of the pathogens being antagonized, while almost complete inhibition was observed following 72 h of co-cultivation. In conclusion, L. pentosus R26 and L. plantarum R32 exhibited high antibacterial activity and acid production capability, while also demonstrating satisfactory tolerance to low pH values and high concentrations of bile salts and digestive fluid. The probiotic characteristics and stress resistance of L. pentosus R26 were slightly superior to those of L. plantarum R32, indicating its potential for development as a probiotic.
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Affiliation(s)
| | | | | | | | | | - Yong Chen
- Xinjiang Key Laboratory of Herbivore Nutrition for Meat & Milk, College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China; (C.T.); (L.W.); (M.L.); (J.L.); (M.Q.)
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Bi X, Qiu M, Huang W, Liu Y, Li D, Li H, Chen G, Qiu R. Survival strategies in arsenic-contaminated environments: Comparative insights from native and exotic aquatic species. Sci Total Environ 2024; 917:170440. [PMID: 38286280 DOI: 10.1016/j.scitotenv.2024.170440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/08/2024] [Accepted: 01/23/2024] [Indexed: 01/31/2024]
Abstract
The aim of this work was to study the sublethal effects, biokinetics, subcellular partitioning and detoxification of arsenic in two native Chinses species, Bellamya quadrata and Cipangopaludina cathayensis, as well as an exotic South American species, Pomacea canaliculata. The exotic species exhibited higher tolerance than native species. Physiologically based pharmacokinetic model results showed that the exotic species P. canaliculata exhibited a lower bioaccumulation rate and a greater metabolism capacity of As. Subcellular partitioning of As revealed that P. canaliculata exhibits superior As tolerance compared to the native species B. quadrata and C. cathayensis. This is attributed to P. canaliculata effective management of the metal sensitive fraction and enhanced accumulation of As in the biologically detoxified metal fraction. Under As stress, the biochemical parameters (superoxide dismutase, malondialdehyde, glutathione and glutathione S-transferase) of the exotic species P. canaliculata changed less in the native species, and they returned to normal levels at the end of depuration period. Our study provides evidence of the superior survival capability of the exotic species P. canaliculata compared to the native species B. quadrata and C. cathayensis under environmentally relevant levels of As contamination.
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Affiliation(s)
- Xiaoyang Bi
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Mingxin Qiu
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Weigang Huang
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Yuanyang Liu
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Dongqin Li
- Institute of Quality Standard and Monitoring Technology for Agro-products of Guangdong Academy of Agricultural Sciences, Guangzhou 501640, China
| | - Huashou Li
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Guikui Chen
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
| | - Rongliang Qiu
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
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Bi X, Qiu M, Li D, Zhang Y, Zhan W, Wang Z, Lv Z, Li H, Chen G. Transcriptomic and metabolomic analysis of the mechanisms underlying stress responses of the freshwater snail, Pomacea canaliculata, exposed to different levels of arsenic. Aquat Toxicol 2024; 267:106835. [PMID: 38219501 DOI: 10.1016/j.aquatox.2024.106835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 12/12/2023] [Accepted: 01/09/2024] [Indexed: 01/16/2024]
Abstract
Arsenic (As) pollution poses an important problem, but limited information is available about the physiological effects of As on freshwater invertebrates. Here, we investigated the physiological effects of chronic As exposure on Pomacea canaliculata, a freshwater invertebrate. High level of As (Ⅲ, 5 mg/L) inhibited the growth of P. canaliculata, whereas low level of As (Ⅲ, 2 mg/L) promoted growth. Pathological changes in shell and cellular ultrastructure due to As accumulation likely explain the growth inhibition at high As level. Low level of As simulated the expression of genes related to DNA replication and chitosan biosynthesis, potentially accounting for the growth promotion observed. High level of As enrichment pathways primarily involved cytochrome P450, glutathione, and arachidonic acid-mediated metabolism of xenobiotics. ATP-binding cassette (ABC) transporters, specifically the ABCB and ABCC subfamilies, were involved in As transport. Differential metabolites were mainly associated with the metabolism and biosynthesis of amino acids. These findings elucidate the dose-dependent effects of As stress on P. canaliculata growth, with low levels promoting and high levels inhibiting. Additionally, our findings also provide insights into As metabolism and transport in P. canaliculata.
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Affiliation(s)
- Xiaoyang Bi
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Mingxin Qiu
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Danni Li
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Yujing Zhang
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Wenhui Zhan
- Guangdong Testing Institute of Product Quality Supervision, Foshan 528300, China
| | - Zhixiong Wang
- Guangdong Testing Institute of Product Quality Supervision, Foshan 528300, China
| | - Zhaowei Lv
- Guangdong Testing Institute of Product Quality Supervision, Foshan 528300, China
| | - Huashou Li
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Guikui Chen
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
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Zhang S, Li N, Wang F, Liu H, Zhang Y, Xiao J, Qiu W, Zhang C, Fan X, Qiu M, Li M, Tang H, Fan S, Wang J, Luo H, Li X, Lin J, Huang Y, Liang L. Characterization of the tumor microenvironment and identification of spatially predictive biomarkers associated with beneficial neoadjuvant chemoradiotherapy in locally advanced rectal cancer. Pharmacol Res 2023; 197:106974. [PMID: 37898442 DOI: 10.1016/j.phrs.2023.106974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 10/11/2023] [Accepted: 10/25/2023] [Indexed: 10/30/2023]
Abstract
Neoadjuvant chemoradiotherapy (nCRT) has become the standard treatment for patients with locally advanced rectal cancer (LARC). However, 20-40% of patients with LARC show little to no response to nCRT. Thus, comprehensively understanding the tumor microenvironment (TME), which might influence therapeutic efficacy, and identifying robust predictive biomarkers is urgently needed. Pre-treatment tumor biopsy specimens from patients with LARC were evaluated in detail through digital spatial profiling (DSP), public RNA sequencing datasets, and multiplex immunofluorescence (mIF). DSP analysis revealed distinct characteristics of the tumor stroma compared to the normal stroma and tumor compartments. We identified high levels of human leukocyte antigen-DR/major histocompatibility complex class II (HLA-DR/MHC-II) in the tumor compartment and B cells in the stroma as potential spatial predictors of nCRT efficacy in the Discovery cohort. Public datasets validated their predictive capacity for clinical outcomes. Using mIF in an independent nCRT cohort and/or the total cohort, we validated that a high density of HLA-DR/MHC-II+ cells in the tumor and CD20 + B cells in the stroma was associated with nCRT efficacy (all p ≤ 0.021). Spatial profiling successfully characterized the LARC TME and identified robust biomarkers with the potential to accurately predict nCRT response. These findings have important implications for individualized therapy.
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Affiliation(s)
- Shifen Zhang
- Department of Pathology, Nanfang Hospital/School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou 510515, China; Department of Pathology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen 518020, China
| | - Na Li
- Shenzhen Engineering Center for Translational Medicine of Precision Cancer Immunodiagnosis and Therapy, YuceBio Technology Co., Ltd, Shenzhen 518000, China.
| | - Feifei Wang
- Department of Pathology, Nanfang Hospital/School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou 510515, China
| | - Hailing Liu
- Department of Pathology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou 510655, China
| | - Yuhan Zhang
- Shenzhen Engineering Center for Translational Medicine of Precision Cancer Immunodiagnosis and Therapy, YuceBio Technology Co., Ltd, Shenzhen 518000, China
| | - Jinyuan Xiao
- Shenzhen Engineering Center for Translational Medicine of Precision Cancer Immunodiagnosis and Therapy, YuceBio Technology Co., Ltd, Shenzhen 518000, China
| | - Weihao Qiu
- Department of Pathology, Nanfang Hospital/School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou 510515, China
| | - Ceng Zhang
- Department of Pathology, Nanfang Hospital/School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou 510515, China
| | - Xinjuan Fan
- Department of Pathology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou 510655, China
| | - Mingxin Qiu
- Department of Pathology, Nanfang Hospital/School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou 510515, China
| | - Mingzhou Li
- Department of Pathology, Nanfang Hospital/School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou 510515, China
| | - Hongzhen Tang
- Shenzhen Engineering Center for Translational Medicine of Precision Cancer Immunodiagnosis and Therapy, YuceBio Technology Co., Ltd, Shenzhen 518000, China
| | - Shiheng Fan
- Shenzhen Engineering Center for Translational Medicine of Precision Cancer Immunodiagnosis and Therapy, YuceBio Technology Co., Ltd, Shenzhen 518000, China
| | - Jiaqian Wang
- Shenzhen Engineering Center for Translational Medicine of Precision Cancer Immunodiagnosis and Therapy, YuceBio Technology Co., Ltd, Shenzhen 518000, China
| | - Haitao Luo
- Shenzhen Engineering Center for Translational Medicine of Precision Cancer Immunodiagnosis and Therapy, YuceBio Technology Co., Ltd, Shenzhen 518000, China
| | - Xiangzhao Li
- Department of Pathology, Nanfang Hospital/School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou 510515, China
| | - Jie Lin
- Department of Pathology, Nanfang Hospital/School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou 510515, China; Jinfeng Laboratory, Chongqing 401329, China
| | - Yan Huang
- Department of Pathology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou 510655, China.
| | - Li Liang
- Department of Pathology, Nanfang Hospital/School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou 510515, China; Jinfeng Laboratory, Chongqing 401329, China.
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5
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Furuhama A, Kitazawa A, Yao J, Matos Dos Santos CE, Rathman J, Yang C, Ribeiro JV, Cross K, Myatt G, Raitano G, Benfenati E, Jeliazkova N, Saiakhov R, Chakravarti S, Foster RS, Bossa C, Battistelli CL, Benigni R, Sawada T, Wasada H, Hashimoto T, Wu M, Barzilay R, Daga PR, Clark RD, Mestres J, Montero A, Gregori-Puigjané E, Petkov P, Ivanova H, Mekenyan O, Matthews S, Guan D, Spicer J, Lui R, Uesawa Y, Kurosaki K, Matsuzaka Y, Sasaki S, Cronin MTD, Belfield SJ, Firman JW, Spînu N, Qiu M, Keca JM, Gini G, Li T, Tong W, Hong H, Liu Z, Igarashi Y, Yamada H, Sugiyama KI, Honma M. Evaluation of QSAR models for predicting mutagenicity: outcome of the Second Ames/QSAR international challenge project. SAR QSAR Environ Res 2023; 34:983-1001. [PMID: 38047445 DOI: 10.1080/1062936x.2023.2284902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 11/13/2023] [Indexed: 12/05/2023]
Abstract
Quantitative structure-activity relationship (QSAR) models are powerful in silico tools for predicting the mutagenicity of unstable compounds, impurities and metabolites that are difficult to examine using the Ames test. Ideally, Ames/QSAR models for regulatory use should demonstrate high sensitivity, low false-negative rate and wide coverage of chemical space. To promote superior model development, the Division of Genetics and Mutagenesis, National Institute of Health Sciences, Japan (DGM/NIHS), conducted the Second Ames/QSAR International Challenge Project (2020-2022) as a successor to the First Project (2014-2017), with 21 teams from 11 countries participating. The DGM/NIHS provided a curated training dataset of approximately 12,000 chemicals and a trial dataset of approximately 1,600 chemicals, and each participating team predicted the Ames mutagenicity of each trial chemical using various Ames/QSAR models. The DGM/NIHS then provided the Ames test results for trial chemicals to assist in model improvement. Although overall model performance on the Second Project was not superior to that on the First, models from the eight teams participating in both projects achieved higher sensitivity than models from teams participating in only the Second Project. Thus, these evaluations have facilitated the development of QSAR models.
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Affiliation(s)
- A Furuhama
- Division of Genetics and Mutagenesis (DGM), National Institute of Health Sciences (NIHS), Kawasaki, Japan
| | - A Kitazawa
- Division of Genetics and Mutagenesis (DGM), National Institute of Health Sciences (NIHS), Kawasaki, Japan
| | - J Yao
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials (Chinese Academy of Sciences), Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences (SIOC, CAS), Shanghai, China
| | - C E Matos Dos Santos
- Department of Computational Toxicology and In Silico Innovations, Altox Ltd, São Paulo-SP, Brazil
| | - J Rathman
- MN-AM, Nuremberg, Germany/Columbus, OH, USA
| | - C Yang
- MN-AM, Nuremberg, Germany/Columbus, OH, USA
| | | | - K Cross
- In Silico Department, Instem, Conshohocken, PA, USA
| | - G Myatt
- In Silico Department, Instem, Conshohocken, PA, USA
| | - G Raitano
- Laboratory of Environmental Toxicology and Chemistry, Department of Environmental Health Sciences, Istituto di Ricerche Farmacologiche Mario Negri IRCCS (IRFMN), Milano, Italy
| | - E Benfenati
- Laboratory of Environmental Toxicology and Chemistry, Department of Environmental Health Sciences, Istituto di Ricerche Farmacologiche Mario Negri IRCCS (IRFMN), Milano, Italy
| | | | | | | | | | - C Bossa
- Environment and Health Department, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - C Laura Battistelli
- Environment and Health Department, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - R Benigni
- Environment and Health Department, Istituto Superiore di Sanità (ISS), Rome, Italy
- Alpha-PreTox, Rome, Italy
| | - T Sawada
- Faculty of Regional Studies, Gifu University, Gifu, Japan
- xenoBiotic Inc, Gifu, Japan
| | - H Wasada
- Faculty of Regional Studies, Gifu University, Gifu, Japan
| | - T Hashimoto
- Faculty of Regional Studies, Gifu University, Gifu, Japan
| | - M Wu
- Massachusetts Institute of Technology, Cambridge, MA, USA
| | - R Barzilay
- Massachusetts Institute of Technology, Cambridge, MA, USA
| | - P R Daga
- Simulations Plus, Lancaster, CA, USA
| | - R D Clark
- Simulations Plus, Lancaster, CA, USA
| | | | | | | | - P Petkov
- LMC - Bourgas University, Bourgas, Bulgaria
| | - H Ivanova
- LMC - Bourgas University, Bourgas, Bulgaria
| | - O Mekenyan
- LMC - Bourgas University, Bourgas, Bulgaria
| | - S Matthews
- Computational Pharmacology & Toxicology Laboratory, Discipline of Pharmacology, School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - D Guan
- Computational Pharmacology & Toxicology Laboratory, Discipline of Pharmacology, School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - J Spicer
- Computational Pharmacology & Toxicology Laboratory, Discipline of Pharmacology, School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - R Lui
- Computational Pharmacology & Toxicology Laboratory, Discipline of Pharmacology, School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - Y Uesawa
- Department of Medical Molecular Informatics, Meiji Pharmaceutical University, Tokyo, Japan
| | - K Kurosaki
- Department of Medical Molecular Informatics, Meiji Pharmaceutical University, Tokyo, Japan
| | - Y Matsuzaka
- Department of Medical Molecular Informatics, Meiji Pharmaceutical University, Tokyo, Japan
| | - S Sasaki
- Department of Medical Molecular Informatics, Meiji Pharmaceutical University, Tokyo, Japan
| | - M T D Cronin
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - S J Belfield
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - J W Firman
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - N Spînu
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - M Qiu
- Evergreen AI, Inc, Toronto, Canada
| | - J M Keca
- Evergreen AI, Inc, Toronto, Canada
| | - G Gini
- Department of Electronics, Information and Bioengineering (DEIB), Politecnico di Milano, Milano, Italy
| | - T Li
- Division of Bioinformatics and Biostatistics, National Center for Toxicological Research, U.S. Food and Drug Administration (NCTR/FDA), Jefferson, AR, USA
| | - W Tong
- Division of Bioinformatics and Biostatistics, National Center for Toxicological Research, U.S. Food and Drug Administration (NCTR/FDA), Jefferson, AR, USA
| | - H Hong
- Division of Bioinformatics and Biostatistics, National Center for Toxicological Research, U.S. Food and Drug Administration (NCTR/FDA), Jefferson, AR, USA
| | - Z Liu
- Division of Bioinformatics and Biostatistics, National Center for Toxicological Research, U.S. Food and Drug Administration (NCTR/FDA), Jefferson, AR, USA
- Integrative Toxicology, Nonclinical Drug Safety, Boehringer Ingelheim Pharmaceuticals, Inc, Ridgefield, CT, USA
| | - Y Igarashi
- Artificial Intelligence Center for Health and Biomedical Research, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Osaka, Japan
| | - H Yamada
- Artificial Intelligence Center for Health and Biomedical Research, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Osaka, Japan
| | - K-I Sugiyama
- Division of Genetics and Mutagenesis (DGM), National Institute of Health Sciences (NIHS), Kawasaki, Japan
| | - M Honma
- Division of Genetics and Mutagenesis (DGM), National Institute of Health Sciences (NIHS), Kawasaki, Japan
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Patterson I, Farooq A, Qiu M. Ultrasound biomicroscopy (UBM) in the diagnosis of acute fibrin pupillary block in a pseudophakic eye. J Fr Ophtalmol 2023; 46:560-561. [PMID: 37019783 DOI: 10.1016/j.jfo.2022.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 12/26/2022] [Indexed: 04/05/2023]
Affiliation(s)
- I Patterson
- Department of Ophthalmology and Visual Science, University of Chicago Medicine, 5841, S Maryland Avenue, 60637 Chicago, IL, United States.
| | - A Farooq
- Department of Ophthalmology and Visual Science, University of Chicago Medicine, 5841, S Maryland Avenue, 60637 Chicago, IL, United States
| | - M Qiu
- Department of Ophthalmology and Visual Science, University of Chicago Medicine, 5841, S Maryland Avenue, 60637 Chicago, IL, United States
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Ma T, Hao L, Shi P, Qiu M, Liang M, Sun YF, Shi YF. [Clinical outcomes of transoral endoscopic thyroidectomy vestibular approach assisted with submental mini-incision for early thyroid papillary carcinoma]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:986-990. [PMID: 36058667 DOI: 10.3760/cma.j.cn115330-20210901-00590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the efficacy of transoral endoscopic thyroidectomy vestibular approach (TOETVA) assisted with submental mini-incision in early thyroid papillary carcinoma. Methods: A total of 63 patients with early papillary thyroid carcinoma (cT1N0M0) were included who underwent TOETVA from December 2019 to May 2021 in Department of Thyroid Surgery of the Affiliated Hospital of Jining Medical University. There were 4 males and 59 females, aged from 17 to 46 years old. Of those 36 patients received traditional TOETVA as control and 27 patients accepted modified TOETVA assisted with submental mini-incision. The clinical outcomes of patients in two groups were compared. Chi-square test and t test were used in statistical analyses. Results: Compared to control group, modified TOETVA group had the less mean operation time [(146.63±38.62) minutes vs. (167.78±36.71) minutes, t=-2.21, P=0.031], the shorter time required for returning to normal diet after operation [(2.11±0.89) days vs. (2.72±1.16) days, t=-2.28, P=0.026], and the lower probability of mandibular numbness (0 vs. 16.67%, χ2=4.97, P=0.026). There was no significant difference between two groups in intraoperative blood loss, postoperative drainage volume, number of central lymph nodes dissection, and postoperative complications such as gas embolism, postoperative bleeding, postoperative infection, skin burns, subcutaneous effusion and so on(all P>0.05). After 6 months of operation, the thyroid ultrasound of the patients in two groups showed no recurrence, and the patients were satisfied with their surgical incision appearances. Conclusion: Both the modified and traditional TOETVA show similar efficacies for treatments of early thyroid papillary carcinoma, but the modified TOETVA can reduce the operation time and improve the quality of life.
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Affiliation(s)
- T Ma
- Department of Thyroid Surgery, the Affiliated Hospital of Jining Medical University, Jining 272000, China
| | - L Hao
- Department of Thyroid Surgery, the Affiliated Hospital of Jining Medical University, Jining 272000, China
| | - P Shi
- Department of Thyroid Surgery, the Affiliated Hospital of Jining Medical University, Jining 272000, China
| | - M Qiu
- Department of Thyroid Surgery, the Affiliated Hospital of Jining Medical University, Jining 272000, China
| | - M Liang
- Department of Thyroid Surgery, the Affiliated Hospital of Jining Medical University, Jining 272000, China
| | - Y F Sun
- Department of Thyroid Surgery, the Affiliated Hospital of Jining Medical University, Jining 272000, China
| | - Y F Shi
- Department of Thyroid Surgery, the Affiliated Hospital of Jining Medical University, Jining 272000, China
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Zhao S, He J, Qiu M, Liang X. Changes of blood flow in macular zone of patients with diabetic retinopathy at different stages evaluated by optical coherence tomography angiography. J Fr Ophtalmol 2022; 45:728-734. [DOI: 10.1016/j.jfo.2022.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 01/24/2022] [Indexed: 10/18/2022]
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9
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Loudet JC, Choudhury A, Qiu M, Feng JJ. Particle trapped at the isotropic-nematic liquid crystal interface: Elastocapillary phenomena and drag forces. Phys Rev E 2022; 105:044607. [PMID: 35590681 DOI: 10.1103/physreve.105.044607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 04/04/2022] [Indexed: 06/15/2023]
Abstract
We present numerical simulations of a particle trapped at the isotropic-nematic liquid crystal (Iso-N) interface. We use our recent model, based on a phase-field approach [see Qiu et al., Phys. Rev. E 103, 022706 (2021)10.1103/PhysRevE.103.022706], to couple the capillary forces acting on the interface with the elastic stresses in the nematic phase along with topological defects. A range of floating configurations are first investigated as a function of the contact angle and various anchoring conditions at the fluid interface. The results show that the response of the system is driven by the existence of an anchoring conflict at the contact line. Substantial particle displacements and/or interfacial deformations may occur in this case even for moderate anchoring strengths. These findings highlight the coupling between elastic and capillary forces. In a second part, we compute drag forces exerted on a particle that moves along the Iso-N interface for several contact angles and a moderate Ericksen number. Because of the coupling between the velocity and order parameter fields, topological defects are swept downstream of the particle by the flow and sometimes escape from the particle or merge with the interface. We also find linear force-velocity laws, with drag forces at the Iso-N interface being slightly greater than their isotropic counterparts due to director distortions. We discuss these results in light of past studies on the behavior of particles being dragged in the bulk of a liquid crystal matrix.
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Affiliation(s)
- J-C Loudet
- Université de Bordeaux, CNRS, Centre de Recherche Paul Pascal (UMR 5031), 33600 Pessac, France
| | - A Choudhury
- Department of Mechanical and Aerospace Engineering, Indian Institute of Technology Hyderabad, 502284 Telangana, India
- University of British Columbia, Department of Mathematics, Vancouver, BC, Canada V6T 1Z2
| | - M Qiu
- Laboratoire de Physique, École Normale Supérieure, 75005 Paris, France
| | - J J Feng
- University of British Columbia, Department of Mathematics, Vancouver, BC, Canada V6T 1Z2
- University of British Columbia, Department of Chemical and Biological Engineering, Vancouver, BC, Canada V6T 1Z3
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10
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Li Y, Raza F, Liu Y, Wei Y, Rong R, Zheng M, Yuan W, Su J, Qiu M, Li Y, Raza F, Liu Y, Wei Y, Rong R, Zheng M, Yuan W, Su J, Qiu M. Clinical progress and advanced research of red blood cells based drug delivery system. Biomaterials 2021; 279:121202. [PMID: 34749072 DOI: 10.1016/j.biomaterials.2021.121202] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 09/27/2021] [Accepted: 10/20/2021] [Indexed: 02/07/2023]
Abstract
Red blood cells (RBCs) are biocompatible carriers that can be employed to deliver different bioactive substances. In the past few decades, many strategies have been developed to encapsulate or attach drugs to RBCs. Osmotic-based encapsulation methods have been industrialized recently, and some encapsulated RBC formulations have reached the clinical stage for treating tumors and neurological diseases. Inspired by the intrinsic properties of intact RBCs, some advanced delivery strategies have also been proposed. These delivery systems combine RBCs with other novel systems to further exploit and expand the application of RBCs. This review summarizes the clinical progress of drugs encapsulated into intact RBCs, focusing on the loading and clinical trials. It also introduces the latest advanced research based on developing prospects and limitations of intact RBCs drug delivery system (DDS), hoping to provide a reference for related research fields and further application potential of intact RBCs based drug delivery system.
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Affiliation(s)
- Yichen Li
- School of Pharmacy Shanghai Jiao Tong University 800, Dongchuan Road, 200240, Shanghai, China
| | - Faisal Raza
- School of Pharmacy Shanghai Jiao Tong University 800, Dongchuan Road, 200240, Shanghai, China
| | - Yuhao Liu
- School of Pharmacy Shanghai Jiao Tong University 800, Dongchuan Road, 200240, Shanghai, China
| | - Yiqi Wei
- School of Pharmacy Shanghai Jiao Tong University 800, Dongchuan Road, 200240, Shanghai, China
| | - Ruonan Rong
- School of Pharmacy Shanghai Jiao Tong University 800, Dongchuan Road, 200240, Shanghai, China
| | - Mengyuan Zheng
- School of Pharmacy Shanghai Jiao Tong University 800, Dongchuan Road, 200240, Shanghai, China
| | - Weien Yuan
- School of Pharmacy Shanghai Jiao Tong University 800, Dongchuan Road, 200240, Shanghai, China
| | - Jing Su
- School of Pharmacy Shanghai Jiao Tong University 800, Dongchuan Road, 200240, Shanghai, China.
| | - Mingfeng Qiu
- School of Pharmacy Shanghai Jiao Tong University 800, Dongchuan Road, 200240, Shanghai, China.
| | - Y Li
- School of Pharmacy Shanghai Jiao Tong University 800, Dongchuan Road, 200240, Shanghai, China
| | - F Raza
- School of Pharmacy Shanghai Jiao Tong University 800, Dongchuan Road, 200240, Shanghai, China
| | - Y Liu
- School of Pharmacy Shanghai Jiao Tong University 800, Dongchuan Road, 200240, Shanghai, China
| | - Y Wei
- School of Pharmacy Shanghai Jiao Tong University 800, Dongchuan Road, 200240, Shanghai, China
| | - R Rong
- School of Pharmacy Shanghai Jiao Tong University 800, Dongchuan Road, 200240, Shanghai, China
| | - M Zheng
- School of Pharmacy Shanghai Jiao Tong University 800, Dongchuan Road, 200240, Shanghai, China
| | - W Yuan
- School of Pharmacy Shanghai Jiao Tong University 800, Dongchuan Road, 200240, Shanghai, China
| | - J Su
- School of Pharmacy Shanghai Jiao Tong University 800, Dongchuan Road, 200240, Shanghai, China
| | - M Qiu
- School of Pharmacy Shanghai Jiao Tong University 800, Dongchuan Road, 200240, Shanghai, China
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11
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Qiu M, Guo Y, Guo W, Nian W, Liao W, Xu Z, Zhang W, Zhang Y, Wei X, Xue L, Tang W, Wu Y, Ren G, Wang L, Xi J, Wang Y, Li M, Hausheer F, Hu C, Xu R. 905P FIH phase I dose escalation and dose expansion study of anti-EGFR ADC MRG003 in patients with advanced solid tumors. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1315] [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: 10/20/2022] Open
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12
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Gao JD, Song H, Fu P, Guo YX, Zhang HY, Qiu M. Effects of etomidate on cell apoptosis during myocardial ischemia-reperfusion. J BIOL REG HOMEOS AG 2021; 35:10. [PMID: 34350750 DOI: 10.23812/21-si1-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- J D Gao
- Department of Pain, Yantaishan Hospital, Yantai, China
| | - H Song
- Emergency Department, Jinan Zhangqiu District Hospital of TCM, Jinan, China
| | - P Fu
- Department of Anesthesiology, Qingdao Fuwai Cardiovascular Hospital, Qingdao, China
| | - Y X Guo
- Department of Respiratory, Jinan Zhangqiu District People's Hospital, Jinan, China
| | - H Y Zhang
- Department of Pediatrics, Jinan Zhangqiu District People's Hospital, Jinan, China
| | - M Qiu
- Department of Anesthesiology, Jinan Municipal Hospital of Traditional Chinese Medicine, Jinan, China
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13
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Xu R, Lam K, Pan H, Qiu M, Zheng Y, Liu Z, Tan T, Hang W. P-18 Phase Ib study of niraparib plus tebotelimab in patients with advanced or metastatic gastric cancer after prior treatment failure. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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14
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Huang Y, Wu H, Wang Z, Jin Y, Yao Y, Chen Y, Zhao Q, Chen S, He M, Luo H, Qiu M, Wang D, Wang F, Li Y, Xu M, Wang F, Xu R. SO-23 The genomic temporal heterogeneity of circulating tumor DNA in metastatic colorectal cancer under first-line treatment. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Li J, Guo H, Ma Y, Chen H, Qiu M. 11P LINC00926 is a B cell-specific long non-coding RNA in lung adenocarcinoma and is associated with the prognosis of patients with this disease. J Thorac Oncol 2021. [DOI: 10.1016/s1556-0864(21)01853-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Qiu M, Zhou Z, Meng S, Li H, Li Q, Wang J. 29MO Early-stage lung cancer detection by a noninvasive breath test. J Thorac Oncol 2021. [DOI: 10.1016/s1556-0864(21)01871-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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17
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Hemauer J, Qiu M, Feng JJ, Loudet JC. Particle rotation speeds up capillary interactions. Eur Phys J E Soft Matter 2021; 44:30. [PMID: 33721135 DOI: 10.1140/epje/s10189-021-00025-w] [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: 10/26/2020] [Accepted: 01/21/2021] [Indexed: 06/12/2023]
Abstract
We use dynamic numerical simulations to investigate the role of particle rotation in pairwise capillary interactions of particles trapped at a fluid interface. The fluid interface is modeled with a phase-field method which is coupled to the Navier-Stokes equations to solve for the flow dynamics. Numerical solutions are found using a finite element scheme in a bounded two-dimensional geometry. The interfacial deformations are caused by the buoyant weight of the particles, which are allowed to both translate and rotate due to the capillary and viscous forces and torques at play. The results show that the capillary attraction is faster between freely rotating particles than if particle rotation is inhibited, and the higher the viscosity mismatch, the greater the effect. To explain this result, we analyze the drag force exerted on the particles and find that the translational drag force on a rotating particle is always less than its non-rotating counterpart due to attenuated velocity gradients in the vicinity of the particle. We also find that the influence of interfacial deformations on particle rotation is minute.
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Affiliation(s)
- J Hemauer
- Department of Mechanical Engineering, Technical University of Munich, 85748, Garching, Germany
- Department of Mathematics, University of British Columbia, Vancouver, BC, V6T 1Z2, Canada
| | - M Qiu
- Department of Mathematics, University of British Columbia, Vancouver, BC, V6T 1Z2, Canada
- Laboratoire de Physique, École Normale Supérieure, 75005, Paris, France
| | - J J Feng
- Department of Mathematics, University of British Columbia, Vancouver, BC, V6T 1Z2, Canada
- Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - J-C Loudet
- Department of Mathematics, University of British Columbia, Vancouver, BC, V6T 1Z2, Canada.
- CNRS, Centre de Recherche Paul Pascal (UMR 5031), University of Bordeaux, 33600, Pessac, France.
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18
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Xu ZL, Zhang M, Chen SX, Qiu M, Zhang Q, Gao LP, Li JWDXQ. MicroRNA-424-5p inhibits the development of non-small cell LCa by binding to ITGB1. Eur Rev Med Pharmacol Sci 2020; 23:8921-8930. [PMID: 31696479 DOI: 10.26355/eurrev_201910_19289] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The aim of this study was to explore the effect of microRNA-424-5p on the proliferation and apoptosis of non-small cell lung cancer (NSCLC) cells, and to investigate its influence on the expression of ITGB1 and potential regulatory mechanism. PATIENTS AND METHODS Quantitative Real Time-Polymerase Chain Reaction (qRT-PCR) was used to detect the level of microRNA-424-5p in 44 paired NSCLC tissues and adjacent tissues. The relation between microRNA-424-5p expression and NSCLC clinical indicators was analyzed. Subsequently, microRNA-424-5p mimics and inhibitors were transfected into NSCLC cells to construct microRNA-424-5p overexpression or knockdown models, respectively. QRT-PCR was used to further verify the transfection efficiency. A series of experiments, including cell counting kit-8 (CCK-8) assay, colony formation, 5-Ethynyl-2'-deoxyuridine (EdU), and flow cytometry were used to analyze the effect of microRNA-424-5p on the biological function of NSCLC A549 and H358 cells. Finally, the potential association between microRNA-424-5p and its downstream gene ITGB1 was explored through luciferase reporter gene assay and cell recovery experiment. RESULTS QRT-PCR results showed that microRNA-424-5p level was significantly lower in NSCLC tissues than that of adjacent normal tissues. Compared with patients with high expression of microRNA-424-5p, the pathological stage of those with low expression of microRNA-424-5p was significantly higher. In vitro experiments showed that microRNA-424-5p overexpression remarkably decreased cell proliferation and increased cell apoptosis, which were further validated in microRNA-424-5p inhibitor group. Subsequently, ITGB1 expression was found significantly up-regulated in NSCLC cell lines and tissues. Meanwhile, ITGB1 expression was negatively correlated with microRNA-424-5p level. In addition, a recovery experiment indicated that overexpression of ITGB1 could counteract the effect of microRNA-424-5p mimics on the proliferation and apoptosis of NSCLC cells. All these findings revealed that microRNA-424-5p and ITGB1 affected the malignant progression of NSCLC. CONCLUSIONS MicroRNA-424-5p was closely correlated with the pathological stage and poor prognosis of NSCLC, thereby inhibiting the occurrence and development of NSCLC.
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Affiliation(s)
- Z-L Xu
- Department of Respiratory Medicine, The First People's Hospital of Fuyang, Hangzhou, China.
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19
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Zhang Z, Qiu M, Du H, Li Q, Yu C, Gan W, Peng H, Xia B, Xiong X, Song X, Yang L, Hu C, Chen J, Yang C, Jiang X. Small RNA sequencing reveals miRNAs important for hypoxic adaptation in the Tibetan chicken. Br Poult Sci 2020; 61:632-639. [PMID: 32631087 DOI: 10.1080/00071668.2020.1792835] [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] [Indexed: 01/19/2023]
Abstract
1. The Tibetan chicken, which is an indigenous breed living on the Tibetan Plateau, exhibits hypoxic adaptations to its high-altitude environment. However, the molecular mechanism behind this hypoxic adaptation is still unclear. This study aimed to investigate differentially expressed miRNAs involved in hypoxic adaptation through high-throughput RNA sequencing. 2. Quantitative reverse transcription polymerase chain reaction (qRT-PCR) was used to verify the differentially expressed miRNAs and their target genes in chicken embryonic heart tissues and fibroblasts. Luciferase reporter assays were performed to confirm the relationship between miRNAs and target genes. 3. The study identified 37 differentially expressed miRNAs in Tibetan chicken embryonic heart tissues, including 20 up- and 17 down-regulated miRNAs, compared to those found in lowland chickens. Differentially expressed miRNAs were mainly involved in biological processes, such as cell cycle arrest, toll-like receptor signalling pathways, and I-kappa B kinase/NF-kappa B signalling. The data showed that gga-miR-34 c-5p was significantly upregulated in Tibetan chicken tissues and hypoxic fibroblasts, while EHHADH, a target gene of gga-miR-34 c-5p, was downregulated. Moreover, gga-miR-34 c-5p dramatically decreased the luciferase activity of the wild EHHADH, whereas no effect on the mutational EHHADH was found. 4. This study identified miRNA expression profiles in the Tibetan chicken and suggested that miR-34 c-5p acts as a novel miRNA associated with hypoxic adaptation. This facilitates the understanding of molecular mechanisms that underlie long-term exposure to hypoxia.
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Affiliation(s)
- Z Zhang
- Poultry Research Institute, Sichuan Animal Science Academy , Chengdu, Sichuan, China.,Poultry Research Institute, Animal Breeding and Genetics Key Laboratory of Sichuan Province , Chengdu, Sichuan, China
| | - M Qiu
- Poultry Research Institute, Sichuan Animal Science Academy , Chengdu, Sichuan, China
| | - H Du
- Poultry Research Institute, Sichuan Animal Science Academy , Chengdu, Sichuan, China
| | - Q Li
- Poultry Research Institute, Sichuan Animal Science Academy , Chengdu, Sichuan, China
| | - C Yu
- Poultry Research Institute, Sichuan Animal Science Academy , Chengdu, Sichuan, China
| | - W Gan
- Poultry Research Institute, Shanghai Ying Biotechnology Company , Shanghai, China
| | - H Peng
- Poultry Research Institute, Sichuan Animal Science Academy , Chengdu, Sichuan, China
| | - B Xia
- Poultry Research Institute, Sichuan Animal Science Academy , Chengdu, Sichuan, China
| | - X Xiong
- Poultry Research Institute, Sichuan Animal Science Academy , Chengdu, Sichuan, China
| | - X Song
- Poultry Research Institute, Sichuan Animal Science Academy , Chengdu, Sichuan, China
| | - L Yang
- Poultry Research Institute, Sichuan Animal Science Academy , Chengdu, Sichuan, China
| | - C Hu
- Poultry Research Institute, Sichuan Animal Science Academy , Chengdu, Sichuan, China
| | - J Chen
- Poultry Research Institute, Sichuan Animal Science Academy , Chengdu, Sichuan, China
| | - C Yang
- Poultry Research Institute, Sichuan Animal Science Academy , Chengdu, Sichuan, China
| | - X Jiang
- Poultry Research Institute, Sichuan Animal Science Academy , Chengdu, Sichuan, China.,Poultry Research Institute, Animal Breeding and Genetics Key Laboratory of Sichuan Province , Chengdu, Sichuan, China
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Zhang Q, Ma R, Li Y, Zhao L, Wang G, Huang Y, Lu M, Qiu M, Zhang S, Hou X, Ma L. Oncological outcomes of upper tract urothelial carcinoma after renal transplantation: Is simultaneously bilateral nephroureterectomy better? EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32775-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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21
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Qiu M, Sun X, Lu F, Wang Q, Zhou L. FRI0259 THE CLINICAL VALUE OF GDF-15 IN ASSESSING MYOCARDIAL INVOLVEMENT OF IDIOPATHIC INFLAMMATORY MYOPATHY. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.2841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Cardiac involvement is a serious complication of idiopathic inflammatory myopathy (IIM). Early diagnosis and intervention can improve prognosis. At present, myocardial biopsy is the gold standard for its diagnosis, but it is not commonly used because of its invasiveness. Biomarkers can be invoked as a non-invasive and convenient choice. The traditional markers of myocardial injury, as troponin and creatine kinase are lack specificity in inflammatory myopathy, so the novel biomarkers are getting attention.GDF-15 can predict the risk of cardiovascular disease and the prognosis of coronary atherosclerosis, heart failure and other diseases.Objectives:This article was intended to investigate the diagnostic value of GDF-15 for myocardial involvement in inflammatory myopathy.Methods:This retrospective study included 54 patients with inflammatory myopathy from May 2018 to October 2019.Of these,30 patients underwent cardiac magnetic resonance examination due to increased myocardial markers, excluding 1 case of severe lung infection. 33 patients with systemic lupus erythematosus (SLE),16 normal patients were used as the control group.The concentration of GDF-15 in the serum of all groups of patients was measured by ELISA.Results:1. There were significantly differences in GDF-15 levels in patients with inflammatory myopathy, systemic lupus erythematosus and normal subjects (H =39.870, P <0.001).2. 29 patients with cardiac magnetic resonance on the basis of the delayed enhancement (LGE) and ECV results were divided into two groups in which 19 patients with myocardial injury group and 10 patients without myocardial injury. The best cut-off value was calculated by ROC curve,and comparing GDF-15 and CKMB with the optimum cut-off values in predicting cardiac involvement in IIM.GDF-15 levels were statistically significant between the myocardial injury group (1765.868±1068.549 pg/ml) and the group without myocardial injury(689.967±458.12 pg/ml)(p =0.0011).At the same time, the creatine kinase isoenzyme (CKMB)(158.583±119.389 U/L vs 57.96±52.673 U/L, p =0.005) was statistically different between the two groups.3.GDF-15≥1005.3650pg/ml (AUC =0.853,95% CI 0.694-1.000) predicted myocardial involvement in inflammatory diseases with a sensitivity of 0.765 and specificity of 0.900.The AUC of the ROC curve for the joint detection of GDF-15 and CKMB was 0.888,95% CI0.757-1.000,with the predicted probability cut-off value in 0.3895, the sensitivity 0.941 and the specificity 0.800.The combined detection of the two increased the sensitivity of myocardial damage detection in IIM patients. 5. After adjusted for age, renal function, the risk of myocardial injury in IIM patients increased by an average of 0.3% per unit of GDF-15(OR =1.003,95% CI 1.000–1.005).Conclusion:GDF-15 can predict myocardial injury in patients with inflammatory myopathy which have high specificity.The prediction sensitivity can be improved by combining with the traditional myocardial enzyme CKMB.More further studies are needed to confirm the specific mechanism of GDF-15 for myocardial involvement to assess the prognosis of such patients and guide further treatment.References:[1]Sultan SM, Ioannou Y, Moss K, Isenberg DA. Outcome in patients with idiopathic inflflammatory myositis: morbidity and mortality. Rheumatology (Oxford) 2002;41:22–6.[2]Lundberg IE, de Visser M, Werth VP. Classification of myositis. Nat Rev Rheumatol. 2018 May;14(5):269-278.[3]Zhang L, Wang GC, Ma L, Zu N (2012) Cardiac involvement in adult polymyositis or dermatomyositis: a systematic review. Clin Cardiol 35(11):686–691.[4]Chen F,Peng Y,Chen M. Diagnostic approach to cardiac involvement in idiopathic inflammatory myopathies.A strategy combining cardiac troponin I but not T assay with other methods[J].Int Heart J,2018;59:256-262Disclosure of Interests:None declared
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Ding LL, Wen F, Wang H, Wang DH, Liu Q, Mo YX, Tan X, Qiu M, Hu JX. Osteoporosis drugs for prevention of clinical fracture in white postmenopausal women: a network meta-analysis of survival data. Osteoporos Int 2020; 31:961-971. [PMID: 32002571 DOI: 10.1007/s00198-019-05183-4] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 09/27/2019] [Indexed: 01/22/2023]
Abstract
UNLABELLED By Bayesian random effects network meta-analysis stratified by prevalent vertebral fracture (PVF), we conclude that different effective drugs should be used to prevent fragility fractures according to postmenopausal women with or without PVF and that there are two drugs (i.e., parathyroid hormone (1-84) and abaloparatide) less tolerated than placebo. INTRODUCTION No studies have compared various osteoporosis drugs in postmenopausal women (PMW) either with or without prevalent vertebral fracture (PVF). We aimed to compare them in the two different subgroups. METHODS We searched different databases to select relevant studies. We performed Bayesian random effects network meta-analysis to synthesize hazard ratio (HR) and 95% confidence interval (CI) for clinical fracture stratified by PVF and to synthesize risk ratio (RR) for tolerability and vertebral fracture. RESULTS We included 33 trials involving 79,144 PMW. In the PVF ≥ 50% subgroup, teriparatide (HR 0.39, 95% CI 0.28-0.57), romosozumab (HR 0.49, 95% CI 0.29-0.75), risedronate (HR 0.62, 95% CI 0.50-0.79), zoledronate (HR 0.67, 95% CI 0.47-0.96), and alendronate (HR 0.69, 95% CI 0.47-0.97) reduced clinical fracture risk. In the other subgroup, abaloparatide (HR 0.56, 95% CI 0.33-0.92), romosozumab (HR 0.67, 95% CI 0.47-0.95), and denosumab (HR 0.68, 95% CI 0.50-0.85) reduced clinical fracture risk. Five drugs reduced vertebral fracture risk in the PVF ≥ 50% subgroup whereas seven did in the other subgroup. All drugs did not increase withdrawal risk except for parathyroid hormone (1-84) (PTH) (RR 1.9, 95% CI 1.4-2.6) and abaloparatide (RR 1.6, 95% CI 1.2-2.3). CONCLUSION Different effective drugs should be used to prevent fragility fractures according to PMW with or without PVF, and romosozumab is the only one which can reduce clinical and vertebral fractures in both of the two populations. PTH and abaloparatide are less tolerated than placebo whereas the eight other drugs assessed in the study have the same tolerability as placebo.
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Affiliation(s)
- L-L Ding
- Department of Orthopedics, The People's Hospital of Rongchang District, Chongqing, 402460, China
| | - F Wen
- Department of Orthopedics, The People's Hospital of Rongchang District, Chongqing, 402460, China
| | - H Wang
- Department of Orthopedics, The People's Hospital of Rongchang District, Chongqing, 402460, China
| | - D-H Wang
- Department of Orthopedics, The People's Hospital of Rongchang District, Chongqing, 402460, China
| | - Q Liu
- Department of Orthopedics, Yueyang Second People's Hospital, Hunan Normal University, Yueyang, 414000, Hunan, China
| | - Y-X Mo
- Department of Gynecology, The People's Hospital of Rongchang District, Chongqing, 402460, China
| | - X Tan
- Department of Orthopedics, The People's Hospital of Rongchang District, Chongqing, 402460, China
| | - M Qiu
- Department of Gynecology, The People's Hospital of Rongchang District, Chongqing, 402460, China.
| | - J-X Hu
- Department of Orthopedics, Yueyang Second People's Hospital, Hunan Normal University, Yueyang, 414000, Hunan, China.
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Loudet JC, Qiu M, Hemauer J, Feng JJ. Drag force on a particle straddling a fluid interface: Influence of interfacial deformations. Eur Phys J E Soft Matter 2020; 43:13. [PMID: 32060763 DOI: 10.1140/epje/i2020-11936-1] [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] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 01/29/2020] [Indexed: 06/10/2023]
Abstract
We numerically investigate the influence of interfacial deformations on the drag force exerted on a particle straddling a fluid interface. We perform finite element simulations of the two-phase flow system in a bounded two-dimensional geometry. The fluid interface is modeled with a phase-field method which is coupled to the Navier-Stokes equations to solve for the flow dynamics. The interfacial deformations are caused by the buoyant weight of the particle, which results in curved menisci. We compute drag coefficients as a function of the three-phase contact angle, the viscosity ratio of the two fluids, and the particle density. Our results show that, for some parameter values, large drag forces are not necessarily correlated with large interfacial distortions and that a lower drag may actually be achieved with non-flat interfaces rather than with unperturbed ones.
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Affiliation(s)
- J -C Loudet
- University of Bordeaux, CNRS, Centre de Recherche Paul Pascal (UMR 5031), F-33600, Pessac, France.
- University of British Columbia, Department of Mathematics, V6T 1Z2, Vancouver, BC, Canada.
| | - M Qiu
- University of British Columbia, Department of Mathematics, V6T 1Z2, Vancouver, BC, Canada
| | - J Hemauer
- University of British Columbia, Department of Mathematics, V6T 1Z2, Vancouver, BC, Canada
| | - J J Feng
- University of British Columbia, Department of Mathematics, V6T 1Z2, Vancouver, BC, Canada
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Li J, Xu J, Cui Y, Wang L, Wang B, Wang Q, Zhang X, Qiu M, Zhang Z. Mesenchymal Sufu Regulates Development of Mandibular Molars via Shh Signaling. J Dent Res 2019; 98:1348-1356. [PMID: 31499014 DOI: 10.1177/0022034519872679] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Sonic hedgehog (Shh) in dental epithelium regulates tooth morphogenesis by epithelial-mesenchymal signaling transduction. However, the action of Shh signaling regulation in this process is not well understood. Here we find that mesenchymal Suppressor of Fused (Sufu), a major negative regulator of Shh signaling, plays an important role in modulating the tooth germ morphogenesis during the bud-to-cap stage transition. Deletion of Sufu in dental mesenchyme by Dermo1-Cre mice leads to delayed development of mandibular molar into cap stage with defect of primary enamel knot (EK) formation. We show the disruption of cell proliferation and programmed cell death in dental epithelium and mesenchyme in Sufu mutants. Epithelial-specific adhesion molecule E-cadherin is evidently reduced in the bilateral basal cells of tooth germ at E14.5. The cells in the presumptive EK, predominantly expressing P-cadherin, appear stratified but fail to condense. Moreover, the transcripts of primary EK marker genes, including Shh, Fgf4, and p21, are significantly decreased compared to controls. In contrast, we find that deficiency of Sufu results in elevation of Shh signaling in mesenchyme, indicated by the significant upregulation of Gli1 and Ptch1. Meanwhile, the expression of Bmp4 and Fgf3, the critical factors of mesenchymal-epithelial induction, is significantly inhibited in dental mesenchyme. Furthermore, the expression of Runx2 experiences a transient decrease at the bud stage. Taken together, these data suggest that mesenchymal Sufu is necessary for tuning the Shh signaling, which may act as an upstream modulator of Bmp4 and Fgf3 to coordinate the interplay between the dental mesenchyme and epithelium of tooth germ.
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Affiliation(s)
- J Li
- Institute of Life Sciences, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, China
| | - J Xu
- Institute of Life Sciences, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, China
| | - Y Cui
- Institute of Life Sciences, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, China
| | - L Wang
- Institute of Life Sciences, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, China
| | - B Wang
- Institute of Life Sciences, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, China
| | - Q Wang
- Institute of Life Sciences, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, China
| | - X Zhang
- Institute of Life Sciences, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, China
| | - M Qiu
- Institute of Life Sciences, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, China
| | - Z Zhang
- Institute of Life Sciences, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, China
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Qiu M, Zhang YW, Fei YY, Liu C, Deng SH, He W, Lu M, Lu J, Hou XF, Ma LL. [Retrospective study of diagnosis and treatment of renal oncocytoma]. Beijing Da Xue Xue Bao Yi Xue Ban 2019; 51:689-693. [PMID: 31420623 DOI: 10.19723/j.issn.1671-167x.2019.04.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To summarize the experience of diagnosis and surgical treatment of renal oncocytoma, and to evaluate the surgical results based on follow-up results, in order to find the best strategy. METHODS In the study, 21 cases with renal oncocytoma from December 2003 to April 2016 in Peking University Third Hospital were retrospectively analyzed, including 4 males, and 17 females, with 10 cases on the right side and 11 cases on the left side. Their age was between 15 to 80 years (average: 58 years). Ultrasound or CT examination after admission was conducted. Ultrasound examination showed solid nodules. CT manifestations were solid masses with enhancement, and the tumor size was between 1.5 cm to 6.5 cm (average: 3.3 cm). Of the 21 cases, 9 were located in the middle of kidney, 7 were located in the upper pole, and 5 were located in the lower pole. After preoperative examination, according to the size and location of the tumor, laparoscopic partial nephrectomy or laparoscopic nephrectomy was performed, respectively. RESULTS All the operations were successful, in which 17 cases underwent laparoscopic partial nephrectomy (including 3 cases which were converted to open surgery), and 4 cases underwent laparoscopic radical nephrectomy. The operation time ranged from 75 to 274 min (mean: 144 min), and the blood loss ranged from 10 to 1 000 mL (mean: 115 mL). The postoperative hospital stay time ranged from 6 to 13 d (average: 8.2 d). The pathological results were all renal oncocytoma. In the study, 17 cases were followed up while 4 cases were lost to follow-up. The follow-up time ranged from 12 to 175 months (mean: 44 months). One case died in 20 months after operation with unknown reason, and there were no recurrence or metastasis in the other 16 cases. CONCLUSION Renal oncocytoma is a benign tumor with good prognosis. Enhanced CT is an effective diagnostic method in assistant examination, but it is difficult to differentiate clear cell carcinoma only from the naked eye. It is worthwhile to measure CT value at different stages of the tumor by picture archiving and communication systems (PACS), and to compare with CT value of adjacent kidney tissue may improve the diagnostic efficiency of CT. Laparoscopic surgery is an effective treatment for renal oncocytoma. We recommend laparoscopic partial nephrectomy for the patients with renal oncocytoma as the best choice if conditions permit.
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Affiliation(s)
- M Qiu
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Y W Zhang
- Department of Urology, Taiyuan People's Hospital, Taiyuan 030001, China
| | - Y Y Fei
- Department of Urology, Jixi Jikuang Hospital, Jixi 158100, Heilongjiang, China
| | - C Liu
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - S H Deng
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - W He
- Department of Radiology, Peking University Third Hospital, Beijing 100191, China
| | - M Lu
- Department of Pathology, Peking University Third Hospital, Beijing 100191, China
| | - J Lu
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - X F Hou
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - L L Ma
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
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Xiong Y, Fang Y, Qian Y, Liu Y, Yang X, Huang H, Huang H, Li Y, Zhang X, Zhang Z, Dong M, Qiu M, Zhu XJ, Zhang Z. Wnt Production in Dental Epithelium Is Crucial for Tooth Differentiation. J Dent Res 2019; 98:580-588. [PMID: 30894046 DOI: 10.1177/0022034519835194] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [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: 11/15/2022] Open
Abstract
The Wnt ligands display varied spatiotemporal expression in the epithelium and mesenchyme in the developing tooth. Thus far, the actions of these differentially expressed Wnt ligands on tooth development are not clear. Shh expression specifies the odontogenic epithelium during initiation and is consistently restricted to the dental epithelium during tooth development. In this study, we inactivate Wntless ( Wls), the key regulator for Wnt trafficking, by Shh-Cre to investigate how the Wnt ligands produced in the dental epithelium lineage act on tooth development. We find that conditional knockout of Wls by Shh-Cre leads to defective ameloblast and odontoblast differentiation. WlsShh-Cre teeth display reduced canonical Wnt signaling activity in the inner enamel epithelium and the underlying mesenchyme at the early bell stage, as exhibited by target gene expression and BAT-gal staining. The expression of Wnt5a and Wnt10b is not changed in WlsShh-Cre teeth. By contrast, Wnt10a expression is significantly increased in response to epithelial Wls deficiency. In addition, the expression of Hedgehog signaling pathway components Shh, Gli1, and Patched1 was greatly decreased in WlsShh-Cre teeth. Epithelial Wls loss of function in Shh lineage also leads to aberrant cell proliferation in dental epithelium and mesenchyme at embryonic day 16.5; however, the cell apoptosis is unaffected. Moreover, we find that Decorin and Col1a1, the key markers for odontoblast differentiation that are downregulated in WlsShh-Cre teeth, act as direct downstream targets of the canonical Wnt signaling pathway by chromatin immunoprecipitation analysis. Additionally, Decorin and Col1a1 expression can be increased by lithium chloride (LiCl) treatment in the in vitro tooth explants. Taken together, our results suggest that the spatial expression of Wnt ligands within the dental epithelial lineage regulates the differentiation of tooth structures in later stages.
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Affiliation(s)
- Y Xiong
- 1 Institute of Life Sciences, College of Life and Environmental Science, Hangzhou Normal University, Zhejiang, China
| | - Y Fang
- 1 Institute of Life Sciences, College of Life and Environmental Science, Hangzhou Normal University, Zhejiang, China
| | - Y Qian
- 2 Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Y Liu
- 3 The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - X Yang
- 1 Institute of Life Sciences, College of Life and Environmental Science, Hangzhou Normal University, Zhejiang, China
| | - H Huang
- 1 Institute of Life Sciences, College of Life and Environmental Science, Hangzhou Normal University, Zhejiang, China
| | - H Huang
- 1 Institute of Life Sciences, College of Life and Environmental Science, Hangzhou Normal University, Zhejiang, China
| | - Y Li
- 1 Institute of Life Sciences, College of Life and Environmental Science, Hangzhou Normal University, Zhejiang, China
| | - X Zhang
- 1 Institute of Life Sciences, College of Life and Environmental Science, Hangzhou Normal University, Zhejiang, China
| | - Z Zhang
- 4 Department of Ophthalmology, Tulane Medical Center, Tulane University, New Orleans, LA, USA
| | - M Dong
- 2 Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - M Qiu
- 1 Institute of Life Sciences, College of Life and Environmental Science, Hangzhou Normal University, Zhejiang, China
| | - X J Zhu
- 1 Institute of Life Sciences, College of Life and Environmental Science, Hangzhou Normal University, Zhejiang, China
| | - Z Zhang
- 1 Institute of Life Sciences, College of Life and Environmental Science, Hangzhou Normal University, Zhejiang, China
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Scott K, Jessani N, Qiu M, Bennett S. Developing more participatory and accountable institutions for health: identifying health system research priorities for the Sustainable Development Goal-era. Health Policy Plan 2019; 33:975-987. [PMID: 30247610 PMCID: PMC6263024 DOI: 10.1093/heapol/czy079] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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] [Accepted: 08/13/2018] [Indexed: 11/13/2022] Open
Abstract
Health policy and systems research (HPSR) is vital to guiding global institutions, funders, policymakers, activists and implementers in developing and enacting strategies to achieve the Sustainable Development Goals. We undertook a multi-stage participatory process to identify priority research questions relevant to improving accountability within health systems. We conducted interviews (n = 54) and focus group discussions (n = 2) with policymakers from international and national bodies (ministries of health, other government agencies and technical support institutions) across the WHO regions. Respondents were asked to reflect on challenges and current policy discussions related to health systems accountability, and to identify their pressing research needs. We also conducted an overview of reviews (n = 34) to determine the current status of knowledge on health systems accountability and to identify any gaps. We extracted research questions from the policymaker interviews and focus groups (70 questions) and from the overview of reviews (112 questions), and synthesized these into 36 overarching questions. Using the online platform Co-Digital, we invited researchers from around the world to refine and then rank the questions according to research importance. The questions that emerged amongst the top priorities focused on political factors that mediate the adoption or effectiveness of accountability initiatives, processes and incentives that facilitate the acceptability of accountability mechanisms among frontline healthcare providers, and the national governance reforms and contexts that enhance provider accountability. The process revealed different underlying conceptions of social accountability and how best to promote it, with some researchers and policymakers focusing on specific interventions and others embracing a more systems-oriented approach to understanding accountability, the multiple forms that it can take, how these interact with each other and the importance of power and underlying social relations. The findings from this exercise identify HPSR funding priorities and future areas for evidence production and policy engagement.
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Affiliation(s)
- K Scott
- Health Systems Program, Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolf Street, Baltimore, MA, USA
| | - N Jessani
- Department of Health Behavior and Society, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolf Street, Baltimore, MA, USA
| | - M Qiu
- Health Systems Program, Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolf Street, Baltimore, MA, USA
| | - S Bennett
- Health Systems Program, Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolf Street, Baltimore, MA, USA
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29
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Maher N, Qiu M. 19. Examining discordance between histopathology diagnoses of thin melanoma compared to dysplastic naevi. Pathology 2019. [DOI: 10.1016/j.pathol.2018.09.019] [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: 10/27/2022]
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30
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Eykman E, Field A, Lochhead A, Ma K, Qiu M. 49. High grade B cell lymphoma transformed from a low grade B cell lymphoma with spontaneous remission – A case report. Pathology 2019. [DOI: 10.1016/j.pathol.2018.09.048] [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: 10/27/2022]
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31
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Huang M, Chou A, Riley D, Kim Y, Lukeis R, Qiu M. 45. Case report of unusual ALK gene rearrangement and review of 354 cases of ALK rearrangement study of lung non-small cell carcinoma. Pathology 2019. [DOI: 10.1016/j.pathol.2018.09.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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32
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Yu C, Qiu M, Jiang X, Zhang Z, Du H, Li Q, Xia B, Song X, Hu C, Xiong X, Yang L, Peng H, Chen J, Wang Y, Yang C. Genetic Diversity and Phyletic Evolution of Eleven Chinese Indigenous and Three Commercial Chicken Breeds by mtDNA Sequences. Braz J Poult Sci 2019. [DOI: 10.1590/1806-9061-2018-0807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- C Yu
- Sichuan Animal Science Academy, China
| | - M Qiu
- Sichuan Animal Science Academy, China
| | - X Jiang
- Sichuan Animal Science Academy, China
| | - Z Zhang
- Sichuan Animal Science Academy, China
| | - H Du
- Sichuan Animal Science Academy, China
| | - Q Li
- Sichuan Animal Science Academy, China
| | - B Xia
- Sichuan Animal Science Academy, China
| | - X Song
- Sichuan Animal Science Academy, China
| | - C Hu
- Sichuan Animal Science Academy, China
| | - X Xiong
- Sichuan Animal Science Academy, China
| | - L Yang
- Sichuan Animal Science Academy, China
| | - H Peng
- Sichuan Animal Science Academy, China
| | - J Chen
- Sichuan Animal Science Academy, China
| | - Y Wang
- Sichuan Agricultural University, China
| | - C Yang
- Sichuan Animal Science Academy, China
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33
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Shen X, Wang Y, Cui C, Zhao X, Li D, Zhu Q, Jiang X, Yang C, Qiu M, Yu C, Li Q, Du H, Zhang Z, Yin H. Detection of Snps in the Melanocortin 1-Receptor (MC1R) and Its Association with Shank Color Trait in Hs Chicken. Braz J Poult Sci 2019. [DOI: 10.1590/1806-9061-2018-0845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- X Shen
- Sichuan Agricultural University, China
| | - Y Wang
- Sichuan Agricultural University, China
| | - C Cui
- Sichuan Agricultural University, China
| | - X Zhao
- Sichuan Agricultural University, China
| | - D Li
- Sichuan Agricultural University, China
| | - Q Zhu
- Sichuan Agricultural University, China
| | - X Jiang
- Sichuan Animal Science Academy, China
| | - C Yang
- Sichuan Animal Science Academy, China
| | - M Qiu
- Sichuan Animal Science Academy, China
| | - C Yu
- Sichuan Animal Science Academy, China
| | - Q Li
- Sichuan Animal Science Academy, China
| | - H Du
- Sichuan Animal Science Academy, China
| | - Z Zhang
- Sichuan Animal Science Academy, China
| | - H Yin
- Sichuan Agricultural University, China
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Tian XJ, Qiu M, Liu Z, Xiao RT, Huang Y, Wang GL, Hou XF, Zhang SD, Zhuang SR, Ma LL. [Single-center study of laparoscopic radical nephrectomy with Mayo 0-2 level inferior vena cava thrombectomy]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:1053-1056. [PMID: 30562781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
OBJECTIVE To investigate the safety and feasibility of laparoscopic treatment for renal carcinoma with Mayo 0-2 level venous thrombosis. METHODS From January 2015 to February 2018, 58 renal carcinoma cases with venous thrombus underwent laparoscopic radical nephrectomy with inferior vena cava thrombectomy in Department of Urology, Peking University Third Hospital, of which, 51 cases were male, and 7 female, aged 29-82 years. According to the Mayo grade classification, 20 cases were level 0, 20 cases were level 1, and 18 cases were level 2, with left side being 22 cases, and right side 36 cases. The patients except for those complicated with hemorrhagic diseases, cardiac and pulmonary insufficiency, or those who could not tolerate anesthesia and surgical contraindications, underwent the operation after comprehensive examinations. RESULTS The 58 cases of renal tumor with venous tumor emboli were successfully completed with the surgeries, including 50 cases of totally laparoscopic surgery, 8 cases of laparoscopy surgery from convert to open (among the patients who were converted to open surgery, 7 were complicated with grade 2 tumor thrombus and 1 with grade 1 tumor thrombus). The main reasons for converting to open surgery were huge tumors (the largest of which was about 16 cm in diameter), severe adhesion and difficulty of separation. For different patients, different surgical methods and procedures were adopted according to the tumor direction and the different grade of tumor thrombus. Radical nephrectomy combined with vena cava tumor thrombus removal was performed in 55 cases and segmental resection of vena cava in 3 cases. The operation time was 132-557 min, and blood loss was 20-3 000 mL. Post-operative pathological types: 51 cases were clear cell carcinoma, 5 cases were type 2 of papillary carcinoma, 1 case was squamous cell carcinoma, and 1 case was chromophobe cell tumor. In the study, 47 cases were followed up for 1-36 months, and 4 cases died (the survival time was 5-15 months, with an average of 10.2 months). CONCLUSION Laparoscopic radical nephrectomy with inferior vena cava thrombectomy is a reasonable choice for renal tumor with Mayo 0-2 level venous thrombosis. For different tumor directions and different grades of tumor thrombus, an appropriate operation plan can give the maxim benefit to the patients with skillful surgeons.
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Affiliation(s)
- X J Tian
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - M Qiu
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Z Liu
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - R T Xiao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Y Huang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - G L Wang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - X F Hou
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - S D Zhang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - S R Zhuang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - L L Ma
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
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Ding ZS, Qiu M, Xu ZC, Xiao RT, Ge LY, Ma LL. [Clinicopathological analysis of patients with papillary renal cell carcinoma]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:805-810. [PMID: 30337739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To investigate the clinicopathological features,treatment and prognosis of patients with papillary renal cell carcinoma (PRCC) and PRCC-complicated with tumor thrombus. METHODS Single center retrospective analysis of 75 patients with PRCC treated from January 2012 to October 2017 was performed. There were 55 males and 20 females at an age range of 24-82 years. Sixteen PRCC patients were complicated with tumor thrombus. All the patients were with a surgery and had clear pathological diagnosis and detailed follow-up data. The clinicopathological features, prognosis and influencing factors of the patients with PRCC and PRCC complicated with tumor thrombus were analyzed and summarized. RESULTS The average age of the 75 patients was(56.05±11.59)years,the average body mass index (BMI) was (26±3) kg/m², and the average tumor maximum diameter was (5.17±3.85) cm. There were significant differences between tumor maximum diameter larger than 7 cm and less than 7 cm (69.6% vs. 94.4%, P<0.001), lymph node metastasis and no lymph node metastasis (<38% vs. 98%, P<0.001), adrenal metastasis and no adrenal metastasis (0% vs. 95.3%, P<0.001), pulmonary metastasis and no pulmonary metastasis (0% vs.90.7%, P<0.001), complicated with and without tumor thrombus (<66.4% vs. 93.5%, P<0.001) on the effect of 3-year survival rate of the PRCC patients. In this study, there were 16 patients with type 2 PRCC complicated with tumor thrombus. There were significant differences in concomitant symptoms (62.5% vs. 22.0%, P=0.005), maximum tumor diameter (68.8% vs.13.3%, P<0.001), adrenal metastasis (18.8% vs. 0.02%, P=0.029), pulmonary metastasis (18.8% vs. 0%, P=0.008), nuclear grade (P<0.001) and pathological type (100% vs. 44.1%, P<0.001) between the PRCC patients with and without tumor thrombus. CONCLUSION There were significant differences in tumor diameter,lymph node metastasis,adrenal metastasis, pulmonary metastasis,pathological type, nuclear grade and tumor thrombus in the effect of the 3-year survival rate of PRCC patients. PRCC patients with tumor thrombus were more commonly suffered from type 2 PRCC, for whom the tumor diameter was larger,the nuclear grade was higher,and the distance metastasis happened more easily.
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Affiliation(s)
- Z S Ding
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - M Qiu
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Z C Xu
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - R T Xiao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - L Y Ge
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - L L Ma
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
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Qiu M, Chen Y, Zhang BL, Wang XY. Peripherally inserted central venous catheters did not increase the risk of deep venous thrombosis in advanced colorectal cancer and lung cancer patients with bevacizumab. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy277.005] [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: 11/13/2022] Open
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37
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Tang XG, Yan Y, Qiu M, Lu J, Lu M, Hou XF, Huang Y, Ma LL. [Retrospective study of young bladder urothelial carcinoma from a single center within 16 years]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:630-633. [PMID: 30122762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To evaluate the clinical and pathological features, treatment and prognosis for bladder urothelial carcinoma in relative young patients under 40 years. METHODS A retrospective study involved a total of 43 consecutive patients of bladder urothelial carcinoma, which were under 40 years old from January 2001 to December 2016. RESULTS The incidence rate of bladder urothelial carcinoma in the patients under 40 years was 2.2%, and 35 males and 8 females were included. The average age was 33 years (ranging from 23 to 40 years). At initial visit, 62.8% of the patients presented with painless gross hematuria, 9 patients were discovered by routine examination, and 7 patients experienced lower urinary tract symptoms. Solitary tumor occurred in 34 cases whereas multiple carcinomas had been discovered in 9 cases,and all the 9 multiple cases were from 31-40-year-old subgroups. All the patients received proper surgical intervention according to their own clinical stages. Post-operative pathological results showed 29 low-grade urothelial carcinoma and 14 high-grade cases which included 31 Ta cases, with 7 cases of T1, 1 case of T3, and 3 cases of T4 and one case of T1 plus Tis. The total follow-up was from 5 to 165 months, 3 cases were lost. The overall recurrence rate was 12.5% (5 cases from 40). One patient developed distal metastasis, one died of metastasis after 13 months, and the other three received secondary trans-urethral resection of bladder tumors. The average recurrence time was 39 months (ranging from 3 to 105 months). The progression rate was 5% among all the followed-up patients (2 cases from 40). The recurrence rate in multiple lesions group (33%, 3/9) was significantly higher than that (5.9%, 2/34) in solitary lesion group (P=0.000 3). CONCLUSION The incidence rate of bladder urothelial carcinoma in young patients under 40 years becomes increasingly higher over years. The major initial presentation is painless gross hematuria among these young patients, but lower urinary tract symptoms should also be noticed for young patients to rule out tumor. Postoperative tumor recurrence might be associated with multiple lesions, which is not related to the tumor size or pathological features.
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Affiliation(s)
- X G Tang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Y Yan
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - M Qiu
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - J Lu
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - M Lu
- Department of Pathology, Peking University Third Hospital, Beijing 100191, China
| | - X F Hou
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Y Huang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - L L Ma
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
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Cui C, Ye F, Li Y, Yin H, Ye M, He L, Zhao X, Xu H, Li D, Qiu M, Zhu Q, Wang Y. Detection of SNPs in the BMP6 Gene and Their Association with Carcass and Bone Traits in Chicken. Rev Bras Cienc Avic 2017. [DOI: 10.1590/1806-9061-2017-0555] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- C Cui
- Sichuan Agricultural University, China
| | - F Ye
- Sichuan Agricultural University, China
| | - Y Li
- Sichuan Agricultural University, China
| | - H Yin
- Sichuan Agricultural University, China
| | - M Ye
- Sichuan Agricultural University, China
| | - L He
- Sichuan Agricultural University, China
| | - X Zhao
- Sichuan Agricultural University, China
| | - H Xu
- Sichuan Agricultural University, China
| | - D Li
- Sichuan Agricultural University, China
| | - M Qiu
- Sichuan Agricultural University, China
| | - Q Zhu
- Sichuan Agricultural University, China
| | - Y Wang
- Sichuan Agricultural University, China
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Qiu M, Sun ZT, Sang DK, Han XG, Zhang H, Niu CM. Current progress in black phosphorus materials and their applications in electrochemical energy storage. Nanoscale 2017; 9:13384-13403. [PMID: 28868563 DOI: 10.1039/c7nr03318d] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Recently, a new two-dimensional material, single- or few-layered black phosphorus (BP), has attracted considerable attention for applications in electronics, optoelectronics, and batteries due to its unique properties, including large specific surface area, anisotropy, and tunable and direct band gaps. In particular, contributions to electrochemical energy storage devices, such as lithium and sodium ion batteries and supercapacitors, have emerged. However, critical issues remain to be explored before scaled-up commercial production of BP, such as preparation, stability, and performance. Herein, we present the first review of recent progress in BP-based electrochemical energy storage device. The preparation and electrochemical properties of black phosphorus, recent advances, potential challenges, and relevant perspectives in electrochemical energy storage, and the potential of BP are discussed in this work.
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Affiliation(s)
- M Qiu
- SZU-NUS Collaborative Innovation Center for Optoelectronic Science and Technology and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China.
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40
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Wang FH, Ren C, Zhang Y, Yao S, Feng H, Wu H, Song HF, Zhang R, Wei XL, Xia XJ, Zhao Q, Yun JP, Zou BY, Qiu M, Wang ZQ, Li YH, Xu R. Phase Ia study of a humanized anti-PD-1 monoclonal antibody (JS001) in Chinese patients with refractory solid tumors. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx376.051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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41
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Wang X, Shen Y, Li Q, Qiu M, Li Z, Liu J, Gou H, Yang Y, Cao D, Yi C, Luo D, Zhu H, Zhou Z, Tan S, Wang W, Ye X, Su X, Xu F, Bi F. Adjuvant oxaliplatin plus S-1 (SOX) with concurrent radiotherapy versus SOX alone for gastric cancer with D2 lymph node dissection and high risk factors: a randomized phase III trial. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx369.161] [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: 11/13/2022] Open
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42
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Liu J, Chen F, Wei Z, Qiu M, Li Z, Dan H, Chen Q, Jiang L. Evaluating the efficacy of pentoxifylline in the treatment of oral submucous fibrosis: A meta-analysis. Oral Dis 2017; 24:706-716. [PMID: 28737007 DOI: 10.1111/odi.12715] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Revised: 06/30/2017] [Accepted: 07/13/2017] [Indexed: 02/05/2023]
Affiliation(s)
- J Liu
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology; Sichuan University; Chengdu Sichuan China
| | - F Chen
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology; Sichuan University; Chengdu Sichuan China
| | - Z Wei
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology; Sichuan University; Chengdu Sichuan China
| | - M Qiu
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology; Sichuan University; Chengdu Sichuan China
| | - Z Li
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology; Sichuan University; Chengdu Sichuan China
| | - H Dan
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology; Sichuan University; Chengdu Sichuan China
| | - Q Chen
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology; Sichuan University; Chengdu Sichuan China
| | - L Jiang
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology; Sichuan University; Chengdu Sichuan China
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43
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Ma RZ, Qiu M, He W, Yang B, Xia HZ, Zou D, Lu M, Ma LL, Lu J. [Ureteroscope can assist risk stratification in upper tract urothelial carcinoma]. Beijing Da Xue Xue Bao Yi Xue Ban 2017; 49:632-637. [PMID: 28816279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To analyze the efficiency of ureteroscope and biopsy in the diagnosis of tumor grade, muscle-invasiveness and multifocality in suspected upper tract urinary carcinoma (UTUC) patients in order to find out whether it can be used in the risk stratification of UTUC patients. METHODS A retrospective study of 76 UTUC patients who underwent preoperative ureteroscope and/or biopsy and received radical nephroureterectomy in Peking University Third Hospital during January 2014 to December 2016 was undertaken. RESULTS In this study, 76 patients were included. There were 31 males (40.8%), and 45 females (59.2%). The median age was 64.5 years (31-88), and 51 patients had the symptom of hematuresis. The tumor was located in renal pelvis in 39 patients, and in ureter in 37 patients. Post-operative pathology confirmed that all the 76 patients included in this study suffered from UTUC, of whom 21 (21.6%) were of low-grade, 51 (67.1%) were of high-grade, 4 (5.3%) were undetermined, and 47 (61.9%) patients were muscle-invasive, and 27 (35.5%) were not, and 2 (2.6%) were undetermined. Among the 50 patients, in whom the grade of the tumor could be diagnosed by biopsy, the sensitivity, specificity, accuracy, positive predictive value and negative predictive value for low-grade tumor was 88.2%, 69.7%, 76.0%, 60.0% and 92.0%, respectively. Among the 27 patients, in whom the muscle-invasiveness could be diagnosed by biopsy, 5 patients were diagnosed with muscle-invasiveness, all confirmed by pathology after surgery and 22 patients were diagnosed with none muscle-invasiveness, turned out to be 50% muscle-invasive and 50% none-muscle invasive after surgery. The accuracy was 59.3%. The accuracy of ureteroscopic biopsy to diagnosis multifocality was 61.0%. On univariate analysis, biopsy grade was associated with postoperative pathology (P=0.001), while gender, age, side, body mass index (BMI), hematuresis, preoperative estimated glomerular filtration rate (eGFR), hydronephrosis, tumor size, location, multifocality and sessile were not associated with postoperative pathology grade. Biopsy grade (P=0.02), preoperative eGFR<90 mL/(min×1.73 m2)(P=0.025) and tumor located in pelvis (P=0.049) were associated with muscle invasiveness. Gender, age, side, BMI, hematuresis, hydronephrosis, tumor size, multifocality and sessile were not significantly associated with muscle invasiveness. CONCLUSION Ureteroscope and biopsy can assist risk stratification in upper tract urothelial carcinoma patients.
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Affiliation(s)
- R Z Ma
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - M Qiu
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - W He
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - B Yang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - H Z Xia
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - D Zou
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - M Lu
- Department of Pathology, Peking University Third Hospital, Beijing 100191, China
| | - L L Ma
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - J Lu
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
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Qiu M, Hao Z, Zhang R, Cui L, Wang C, Qu S, Yuan S, Bai Y. Plasma pharmacokinetics of quinocetone in ducks after oral and intravenous administration. J Vet Pharmacol Ther 2017; 41:142-147. [PMID: 28730638 DOI: 10.1111/jvp.12426] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 01/02/2017] [Accepted: 05/08/2017] [Indexed: 11/30/2022]
Abstract
Quinocetone (QCT), an antimicrobial growth promoter, is widely used in food-producing animals. However, information about pharmacokinetics (PK) of QCT in ducks still remains unavailable up to now. In this study, QCT and its major metabolites (1-desoxyquinocetone, di-desoxyquinocetone and 3-methyl-quinoxaline-2-carboxylic) in ducks were studied using a simple and sensitive UHPLC-MS/MS assay. Twenty ducks were divided into two groups. (n = 10/group). One group received QCT by oral administration at dose of 40 mg/kg while another group received QCT intravenously at 10 mg/kg. Plasma samples were collected at various time points from 0 to 96 hr. QCT and its major metabolites in duck plasma samples were extracted by 1 ml acetonitrile and detected by UHPLC-MS/MS, with the gradient mobile phase that consisted of 0.1% formic acid in water (A) and acetonitrile (B). A noncompartment analysis was used to calculate the PK parameters. The results showed that following oral dosing, the peak plasma concentration (Cmax ) of QCT was 32.14 ng/ml and the area under the curve (AUCINF_obs) was 233.63 (h ng)/ ml. Following intravenous dosing, the Cmax , AUCINF_obs and Vss_obs were 96.70 ng/ml, 152.34 (h ng)/ ml and 807.00 L/kg, respectively. These data indicated that the QCT was less absorbed in vivo following oral administration, with low bioavailability (38.43%). QCT and its major metabolites such as 1-desoxyquinocetone and 3-methyl-quinoxaline-2-carboxylic were detected at individual time points in individual ducks, while the di-desoxyquinocetone was not detected in all time points in all ducks. This study enriches basic scientific data about pharmacokinetics of QCT in ducks after oral and intravenous administration and will be beneficial for clinical application in ducks.
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Affiliation(s)
- M Qiu
- Agricultural Bio-pharmaceutical Laboratory, Qingdao Agricultural University, Qingdao, China.,National - Local Joint Engineering Laboratory of Agricultural Bio-pharmaceutical Technology, Qingdao, China
| | - Z Hao
- Agricultural Bio-pharmaceutical Laboratory, Qingdao Agricultural University, Qingdao, China.,National - Local Joint Engineering Laboratory of Agricultural Bio-pharmaceutical Technology, Qingdao, China
| | - R Zhang
- Agricultural Bio-pharmaceutical Laboratory, Qingdao Agricultural University, Qingdao, China.,National - Local Joint Engineering Laboratory of Agricultural Bio-pharmaceutical Technology, Qingdao, China
| | - L Cui
- Agricultural Bio-pharmaceutical Laboratory, Qingdao Agricultural University, Qingdao, China.,National - Local Joint Engineering Laboratory of Agricultural Bio-pharmaceutical Technology, Qingdao, China
| | - C Wang
- Agricultural Bio-pharmaceutical Laboratory, Qingdao Agricultural University, Qingdao, China.,National - Local Joint Engineering Laboratory of Agricultural Bio-pharmaceutical Technology, Qingdao, China
| | - S Qu
- Agricultural Bio-pharmaceutical Laboratory, Qingdao Agricultural University, Qingdao, China.,National - Local Joint Engineering Laboratory of Agricultural Bio-pharmaceutical Technology, Qingdao, China
| | - S Yuan
- Agricultural Bio-pharmaceutical Laboratory, Qingdao Agricultural University, Qingdao, China.,National - Local Joint Engineering Laboratory of Agricultural Bio-pharmaceutical Technology, Qingdao, China
| | - Y Bai
- Agricultural Bio-pharmaceutical Laboratory, Qingdao Agricultural University, Qingdao, China.,National - Local Joint Engineering Laboratory of Agricultural Bio-pharmaceutical Technology, Qingdao, China
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Chen XW, Yu TJ, Zhang J, Li Y, Chen HL, Yang GF, Yu W, Liu YZ, Liu XX, Duan CF, Tang HL, Qiu M, Wang CL, Zheng H, Yue J, Guo AM, Yang J. CYP4A in tumor-associated macrophages promotes pre-metastatic niche formation and metastasis. Oncogene 2017; 36:5045-5057. [PMID: 28481877 PMCID: PMC5582214 DOI: 10.1038/onc.2017.118] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [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: 08/11/2016] [Revised: 03/07/2017] [Accepted: 03/23/2017] [Indexed: 12/13/2022]
Abstract
Tumor-associated macrophages (TAMs) play an essential role in metastasis. However, what enables TAMs to have a superior capacity to establish pre-metastatic microenvironment in distant organs is unclear. Here we have begun to uncover the effects of cytochrome P450 (CYP) 4A in TAMs on lung pre-metastatic niche formation and metastasis. CYP4A+ TAM infiltration was positively associated with metastasis, pre-metastatic niche formation and poor prognosis in breast cancer patients. The pharmacological inhibition of CYP4A reduced lung pre-metastatic niche formation (evidenced by a decrease in vascular endothelial growth factor receptor 1 positive (VEGFR1+) myeloid cell recruitment and pro-metastatic protein expression) and metastatic burden, accompanied with TAM polarization away from the M2 phenotype in spontaneous metastasis models of 4T1 breast cancer and B16F10 melanoma. Co-implantation of 4T1 cells with CYP4A10high macrophages promoted lung pre-metastatic niche formation and metastasis. Depletion of TAMs disrupted lung pre-metastatic niches and thereby prevented metastasis. Treatment with the CM from CYP4A10high M2 macrophages (M2) increased pre-metastatic niche formation and metastatic burden in the lungs, whereas CYP4A inhibition attenuated these effects. In vitro TAM polarization away from the M2 phenotype induced by CYP4A inhibition decreased VEGFR1+ myeloid cell migration and fibronectin expression, accompanied with downregulation of STAT3 signaling. Conversely, overexpression of CYP4A or exogenous addition of 20-hydroxyeicosatetraenoic acid promoted M2 polarization and cytokine production of macrophages and thereby enhanced migration of VEGFR1+ myeloid cells, which were reversed by siRNA or pharmacological inhibition of STAT3. Importantly, a combined blocking M2 macrophage-derived factors TGF-β, VEGF and SDF-1 abolished VEGFR1+ myeloid cell migration and fibroblast activation induced by CYP4A. In summary, CYP4A in TAMs is crucial for lung pre-metastatic niche formation and metastasis, and may serve as a potential therapeutic target in human cancer.
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Affiliation(s)
- X W Chen
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - T J Yu
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - J Zhang
- Animal Experimental Center of Wuhan University, Wuhan, China
| | - Y Li
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - H L Chen
- Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - G F Yang
- Department of Pathology, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - W Yu
- Department of Oncology, The First College of Clinical Medicine, China Three Gorges University, Yichang, China
| | - Y Z Liu
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - X X Liu
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - C F Duan
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - H L Tang
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - M Qiu
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - C L Wang
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - H Zheng
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - J Yue
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - A M Guo
- Department of Pharmacology, New York Medical College, Valhalla, NY, USA
| | - J Yang
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
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Hungerford S, Bart N, Mammo A, Hayward C, Qiu M. Acute Cardiogenic Shock Due to Adrenergic Myocardial Toxicity from a Paraganglioma: The Unmasking Role of Excessive Energy Drink Consumption and Phentermine Prescription in a Young, Obese Man. Heart Lung Circ 2017. [DOI: 10.1016/j.hlc.2017.06.192] [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: 10/19/2022]
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Hungerford S, Bart N, Offen S, Spina R, Baron D, MacDonald P, Qiu M. Cardiogenic Shock Due to Severe Transplant Vasculopathy in a Heart Transplant Recipient: The Limitations of Computed Tomography Coronary Angiogram. Heart Lung Circ 2017. [DOI: 10.1016/j.hlc.2017.06.473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
Calculations predict that bipolar magnetic semiconductor and half-metal behaviors can be observed in penta-graphene nanoribbons.
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Affiliation(s)
- P. F. Yuan
- Institute of Nanomaterial & Nanostructure
- Changsha University of Science and Technology
- Changsha 410114
- China
| | - Z. H. Zhang
- Institute of Nanomaterial & Nanostructure
- Changsha University of Science and Technology
- Changsha 410114
- China
| | - Z. Q. Fan
- Institute of Nanomaterial & Nanostructure
- Changsha University of Science and Technology
- Changsha 410114
- China
| | - M. Qiu
- Institute of Nanomaterial & Nanostructure
- Changsha University of Science and Technology
- Changsha 410114
- China
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Chen G, Peng J, Dong C, Qiu M, Wang C, Li H, Yu H, Zhang M, Zhao Q, Zhu B, Zhang J, Li L, Wang H, Wu Q, Yuan Y, Zhou H. 572P Cardiotoxicity in Chinese cancer patients treated with 5-fluorouracil or capecitabine: A multicenter prospective observational study. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw603.009] [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: 11/13/2022] Open
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