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Zhou Z, Wang S, Feng T, Zhang P, Fan H, Zou J, Huang K. Nanoassembly-Mediated Exendin-4 Derivatives to Decrease Renal Retention. ACS Omega 2024; 9:18757-18765. [PMID: 38708210 PMCID: PMC11064033 DOI: 10.1021/acsomega.3c04644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/16/2023] [Accepted: 10/24/2023] [Indexed: 05/07/2024]
Abstract
An Exendin-4 analogue that was conjugated with 68Ga exhibited an excellent diagnostic effect on insulinoma in clinical practice. On account of its low molecular weight and short hydration radius, 68Ga-Exendin-4 showed high accumulation in kidney tissues. Nanoparticle-mediated strategies have attracted much attention due to polyvalent properties and the size amplification effect. In this study, Exendin-4 derivatives of radionuclide nanodevices were developed and evaluated. The Exendin-4 derivatives consisting of a ternary block recombinant protein were purified by an inverse transition cycle (ITC) and allowed to self-assemble into a nanodevice under physiological conditions. Our results showed that the nanoassemblies of Exendin-4 derivatives formed homogeneous spherical nanoparticles, exhibited outstanding affinity for insulinoma cells, and could be deposited in insulinoma tissues in vivo. The nanoassembly-mediated Exendin-4 derivatives showed fivefold reduced renal retention and exhibited an outstanding tumor-suppression effect.
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Affiliation(s)
- Zhengwei Zhou
- Department
of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Changle Road 68, Nanjing 210006, P. R. China
- School
of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, P. R. China
| | - Shuai Wang
- Department
of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Changle Road 68, Nanjing 210006, P. R. China
- School
of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, P. R. China
| | - Tianling Feng
- Department
of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Changle Road 68, Nanjing 210006, P. R. China
- School
of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, P. R. China
| | - Pengjun Zhang
- Department
of Nuclear Medicine, Nanjing First Hospital, Nanjing Medical University, Changle Road 68, Nanjing 210006, P. R. China
| | - Hongwei Fan
- Department
of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Changle Road 68, Nanjing 210006, P. R. China
- School
of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, P. R. China
| | - Jianjun Zou
- Department
of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Changle Road 68, Nanjing 210006, P. R. China
- School
of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, P. R. China
| | - Kaizong Huang
- Department
of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Changle Road 68, Nanjing 210006, P. R. China
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2
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Yu D, Fan H, Zhang N. Driving factors and grouping paths of rural sports development in China - A qualitative comparative analysis based on fuzzy sets. PLoS One 2024; 19:e0300169. [PMID: 38547147 PMCID: PMC10977770 DOI: 10.1371/journal.pone.0300169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 02/22/2024] [Indexed: 04/02/2024] Open
Abstract
The development of rural sports depends on many factors, but the complex causal relationship between various factors and the level of rural sports development is not clear. Using data envelopment analysis (DEA) and fuzzy set qualitative comparative analysis (fsQCA), this study aims to examine the driving role of various factors on rural sports development and construct various grouping paths to improve the level of rural sports development in China. The results shows that the area of fitness venues and social capital participation are sufficient conditions for the development of rural sports in China. Resource endowment through government fing, social capital participation and the construction of sports venues and facilities is the key driving factor for rural sports development in China. There are four grouping paths for the high-quality development of rural sports, which are divided into three configurations by combining the grouping characteristics: the state-social capital jointly controlled type driven by economic development and the resource endowment driven by the modernization of the agriculture promotes production and the grassroots organizations that are supported by the advantage of resource endowment. The results of the study highlight the complex causal relationships and key driving factors of rural sports development in China, highlight the differences in rural sports development patterns in different regions, and provide new ideas and guidelines for improving the level and quality of rural sports development.
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Affiliation(s)
- Duan Yu
- Institute of Sport Training, Chengdu Sport University, Chengdu, China
| | - Hongwei Fan
- School of Economics and Law, Southwest University of Political Science and Law, Chongqing, China
| | - Ning Zhang
- Institute of Sport Training, Chengdu Sport University, Chengdu, China
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3
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Liu Y, Fan H, Kang X, Hao Y, Wang N, Zheng H, Li Y, Kang S. A rare germline BMP15 missense mutation causes hereditary ovarian immature teratoma in human. Proc Natl Acad Sci U S A 2024; 121:e2310409121. [PMID: 38427603 DOI: 10.1073/pnas.2310409121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 01/11/2024] [Indexed: 03/03/2024] Open
Abstract
Ovarian immature teratomas (OITs) are malignant tumors originating from the ovarian germ cells that mainly occur during the first 30 y of a female's life. Early age of onset strongly suggests the presence of susceptibility gene mutations for the disease yet to be discovered. Whole exon sequencing was used to screen pathogenic mutations from pedigrees with OITs. A rare missense germline mutation (C262T) in the first exon of the BMP15 gene was identified. In silico calculation suggested that the mutation could impair the formation of mature peptides. In vitro experiments on cell lines confirmed that the mutation caused an 84.7% reduction in the secretion of mature BMP15. Clinical samples from OIT patients also showed a similar pattern of decrease in the BMP15 expression. In the transgenic mouse model, the spontaneous parthenogenetic activation significantly increased in oocytes carrying the T allele. Remarkably, a mouse carrying the T allele developed the phenotype of OIT. Oocyte-specific RNA sequencing revealed that abnormal activation of the H-Ras/MAPK pathway might contribute to the development of OIT. BMP15 was identified as a pathogenic gene for OIT which improved our understanding of the etiology of OIT and provided a potential biomarker for genetic screening of this disorder.
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Affiliation(s)
- Yakun Liu
- Department of Gynecology, Fourth Hospital, Hebei Medical University, Shijiazhuang 050011, China
| | - Hongwei Fan
- Department of Gynecology, Fourth Hospital, Hebei Medical University, Shijiazhuang 050011, China
| | - Xi Kang
- Department of Surgery, Fourth Hospital, Hebei Medical University, Shijiazhuang 050011, China
| | - Yuntao Hao
- Department of Gynecology, Fourth Hospital, Hebei Medical University, Shijiazhuang 050011, China
| | - Na Wang
- Department of Molecular Biology, Fourth Hospital, Hebei Medical University, Shijiazhuang 050011, China
| | - Hui Zheng
- Nanjing Personal Oncology Biotechnology Co., Ltd., Nanjing, Jiangsu 211103, China
| | - Yan Li
- Department of Molecular Biology, Fourth Hospital, Hebei Medical University, Shijiazhuang 050011, China
| | - Shan Kang
- Department of Gynecology, Fourth Hospital, Hebei Medical University, Shijiazhuang 050011, China
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Wang R, Li H, Han L, Han B, Bao Y, Fan H, Sun C, Qian R, Ma L, Zhang J. Combining photodynamic therapy and cascade chemotherapy for enhanced tumor cytotoxicity: the role of CTT 2P@B nanoparticles. Front Bioeng Biotechnol 2024; 12:1361966. [PMID: 38410166 PMCID: PMC10895035 DOI: 10.3389/fbioe.2024.1361966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 01/24/2024] [Indexed: 02/28/2024] Open
Abstract
The mitochondria act as the main producers of reactive oxygen species (ROS) within cells. Elevated levels of ROS can activate the mitochondrial apoptotic pathway, leading to cell apoptosis. In this study, we devised a molecular prodrug named CTT2P, demonstrating notable efficacy in facilitating mitochondrial apoptosis. To develop nanomedicine, we enveloped CTT2P within bovine serum albumin (BSA), resulting in the formulation known as CTT2P@B. The molecular prodrug CTT2P is achieved by covalently conjugating mitochondrial targeting triphenylphosphine (PPh3), photosensitizer TPPOH2, ROS-sensitive thioketal (TK), and chemotherapeutic drug camptothecin (CPT). The prodrug, which is chemically bonded, prevents the escape of drugs while they circulate throughout the body, guaranteeing the coordinated dispersion of both medications inside the organism. Additionally, the concurrent integration of targeted photodynamic therapy and cascade chemotherapy synergistically enhances the therapeutic efficacy of pharmaceutical agents. Experimental results indicated that the covalently attached prodrug significantly mitigated CPT cytotoxicity under dark conditions. In contrast, TPPOH2, CTT2, CTT2P, and CTT2P@B nanoparticles exhibited increasing tumor cell-killing effects and suppressed tumor growth when exposed to light at 660 nm with an intensity of 280 mW cm-2. Consequently, this laser-triggered, mitochondria-targeted, combined photodynamic therapy and chemotherapy nano drug delivery system, adept at efficiently promoting mitochondrial apoptosis, presents a promising and innovative approach to cancer treatment.
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Affiliation(s)
- Rongyi Wang
- School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Hongsen Li
- School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Lu Han
- School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Boao Han
- School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Yiting Bao
- School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Hongwei Fan
- School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Chaoyue Sun
- School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Ruijie Qian
- School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Liying Ma
- School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Jiajing Zhang
- School of Pharmacy, Binzhou Medical University, Yantai, China
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Shen M, Liu S, Wei Q, Zhang X, Wen S, Qiu R, Li Y, Fan H. Extract of Astragali Radix and Solanum nigrum Linne regulates microglia and macrophage polarization and inhibits the growth and infiltration of C6 glioblastoma. J Ethnopharmacol 2024; 319:117067. [PMID: 37619857 DOI: 10.1016/j.jep.2023.117067] [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: 06/30/2023] [Revised: 08/16/2023] [Accepted: 08/17/2023] [Indexed: 08/26/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The polarization of glioma-associated microglia/macrophages (GAMs) affects the growth and infiltration of glioma. Astragali Radix (AR) and Solanum nigrum L. (SN) are traditional antitumor combinations in Chinese herbal medicine, but their roles and mechanisms against glioma are not yet clear. AIM OF THE STUDY The effects of AR and SN compound (ARSN) on the polarization of GAMs and glioma cells in vitro and in vivo were studied, providing new ideas for the treatment of glioma. MATERIALS AND METHODS The UPLC-QTOF-MS method was used to examine the quality of ARSN extracts. The effects of ARSN on proliferation, migration and apoptosis of C6 cells were investigated using CCK-8 assay, colony-forming assay, wound healing assay and flow cytometry. The impact of ARSN on the polarization of GAMs was verified by PCR, ELISA, and flow cytometry. In addition, a rat glioma model was established to assess the effects of ARSN on glioma growth, infiltration, and polarization of GAMs. RESULTS In vitro experiments, ARSN can effectively inhibit the proliferation and migration of C6 cells and promote apoptosis. In the rat orthotopic tumor model, ARSN also effectively inhibited tumor growth and infiltration. The SN part of ARSN has strong cytotoxicity. Meanwhile the AR part can effectively inhibit the M2 polarization of GAMs and chemokine production induced by tumor, promote the M1 phenotype of GAMs, and regulate the tumor immune microenvironment to indirectly kill glioma. CONCLUSIONS ARSN inhibited glioma growth both in vitro and in vivo. SN takes effect through direct cytotoxicity, while AR works by regulating GAMs polarization. ARSN extracts can be used as a potential agent for glioma treatment.
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Affiliation(s)
- Mingxue Shen
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China.
| | - Suo Liu
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China.
| | - Qin Wei
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China.
| | - Xiong Zhang
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China.
| | - Shiyu Wen
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China.
| | - Runze Qiu
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China.
| | - Yingbin Li
- Department of Neurosurgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, China.
| | - Hongwei Fan
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China.
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Liu HT, Shen M, Fan HW, Cao W. [A case report of acute fever and multiple plasma membrane effusions]. Zhonghua Nei Ke Za Zhi 2024; 63:94-96. [PMID: 38186124 DOI: 10.3760/cma.j.cn112138-20231031-00271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Affiliation(s)
- H T Liu
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - M Shen
- Department of Immunology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H W Fan
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - W Cao
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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7
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Zhao G, Gao H, Qu Z, Fan H, Meng H. Anhydrous interfacial polymerization of sub-1 Å sieving polyamide membrane. Nat Commun 2023; 14:7624. [PMID: 37993445 PMCID: PMC10665378 DOI: 10.1038/s41467-023-43291-2] [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: 02/03/2023] [Accepted: 11/06/2023] [Indexed: 11/24/2023] Open
Abstract
Highly permeable polyamide (PA) membrane capable of precise ionic sieving can be utilized for many energy-efficient chemical separations. To fulfill this target, it is crucial to innovate membrane-forming process to induce a narrow pore-size distribution. Herein, we report an anhydrous interfacial polymerization (AIP) at a solid-liquid interface where the amine layer sublimated is in direct contact with the alkane containing acyl chlorides. In such a heterophase interface, water-caused side reactions are eliminated, and the amines in compact arrangement enable an intensive and orderly IP reaction, leading to a unique PA layer with an ionic sieving accuracy of 0.5 Å. The AIP-PA membrane demonstrates excellent separation selectivities of monovalent and divalent cations such as Mg2+/Li+ (78.3) and anions such as Cl-/SO42- (29.2) together with a high water flux up to 13.6 L m-2 h-1 bar-1. Our AIP strategy may provide inspirations for engineering high-precision PA membranes available in various advanced separations.
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Affiliation(s)
- Guangjin Zhao
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Haiqi Gao
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830046, PR China
| | - Zhou Qu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Hongwei Fan
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China.
| | - Hong Meng
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830046, PR China.
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8
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Wang H, Qi X, Zhu J, Liu C, Fan H, Zhang X, Li X, Yang Q, Xie C. Pollen self-elimination CRISPR-Cas genome editing prevents transgenic pollen dispersal in maize. Plant Commun 2023; 4:100637. [PMID: 37301980 PMCID: PMC10721481 DOI: 10.1016/j.xplc.2023.100637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 06/06/2023] [Accepted: 06/06/2023] [Indexed: 06/12/2023]
Abstract
This study reports the development of a programmed pollen self-elimination CRISPR-Cas (PSEC) system in which the pollen is infertile when PSEC is present in haploid pollen. PSEC can be inherited through the female gametophyte and retains genome editing activity in vivo across generations. This system could greatly alleviate serious concerns about the widespread diffusion of genetically modified (GM) elements into natural and agricultural environments via outcrossing.
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Affiliation(s)
- Honglin Wang
- Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100081, China; College of Agronomy, Northwest A&F University, Yangling 712100, China
| | - Xiantao Qi
- Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100081, China
| | - Jinjie Zhu
- Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100081, China
| | - Changlin Liu
- Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100081, China; Hainan Yazhou Bay Seed Lab, Sanya, Hainan Province 572024 China
| | - Hongwei Fan
- Henan Jinyuan Seed Industry Co., Ltd., Zhengzhou, Henan Province, China
| | - Xuecai Zhang
- International Maize and Wheat Improvement Center (CIMMYT), EI Batan, Mexico
| | - Xinhai Li
- Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100081, China
| | - Qin Yang
- College of Agronomy, Northwest A&F University, Yangling 712100, China.
| | - Chuanxiao Xie
- Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100081, China; Hainan Yazhou Bay Seed Lab, Sanya, Hainan Province 572024 China.
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Zhang B, Fan J, Huang C, Fan H, Chen J, Huang X, Zeng X. Characteristics and Outcomes of Anti-interferon Gamma Antibody-Associated Adult Onset Immunodeficiency. J Clin Immunol 2023; 43:1660-1670. [PMID: 37365453 PMCID: PMC10499688 DOI: 10.1007/s10875-023-01537-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 06/12/2023] [Indexed: 06/28/2023]
Abstract
PURPOSE Anti-interferon gamma antibody (AIGA) is a rare cause of adult onset immunodeficiency, leading to severe disseminated opportunistic infections with varying outcomes. We aimed to summarize the disease characteristics and to explore factors associated with disease outcome. METHODS A systematic literature review of AIGA associated disease was conducted. Serum-positive cases with detailed clinical presentations, treatment protocols, and outcomes were included. The patients were categorized into controlled and uncontrolled groups based on their documented clinical outcome. Factors associated with disease outcome were analyzed with logistic regression models. RESULTS A total of 195 AIGA patients were retrospectively analyzed, with 119(61.0%) having controlled disease and 76 (39.0%) having uncontrolled disease. The median time to diagnosis and disease course were 12 months and 28 months, respectively. A total of 358 pathogens have been reported with nontubercular mycobacterium (NTM) and Talaromyces marneffei as the most common pathogens. The recurrence rate was as high as 56.0%. The effective rates of antibiotics alone, antibiotics with rituximab, and antibiotics with cyclophosphamide were 40.5%, 73.5%, and 75%, respectively. In the multivariate logistic analysis, skin involvement, NTM infection, and recurrent infections remained significantly associated with disease control, with ORs of 3.25 (95% CI 1.187 ~ 8.909, P value = 0.022), 4.74 (95% CI 1.300 ~ 17.30, P value = 0.018), and 0.22 (95% CI 0.086 ~ 0.551, P value = 0.001), respectively. The patients with disease control had significant AIGA titer reduction. CONCLUSIONS AIGA could cause severe opportunistic infections with unsatisfactory control, particularly in patients with recurrent infections. Efforts should be made to closely monitor the disease and regulate the immune system.
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Affiliation(s)
- Bingqing Zhang
- Department of General Internal Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, NO.1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - Junpin Fan
- Department of Pulmonary, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, NO.1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - Chengjing Huang
- Department of General Internal Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, NO.1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - Hongwei Fan
- Department of Infectious Disease, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, NO.1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - Jialin Chen
- Department of General Internal Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, NO.1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - Xiaoming Huang
- Department of General Internal Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, NO.1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China.
| | - Xuejun Zeng
- Department of General Internal Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, NO.1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China.
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Yu J, Zuo W, Fan H, Wu J, Qiao L, Yang B, Li W, Yang Y, Zhang B. Ceftazidime-Avibactam for Carbapenem-Resistant Gram-Negative Bacteria Infections: A Real-World Experience in the ICU. Infect Drug Resist 2023; 16:6209-6216. [PMID: 37727274 PMCID: PMC10506608 DOI: 10.2147/idr.s422545] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 09/01/2023] [Indexed: 09/21/2023] Open
Abstract
Purpose Ceftazidime-avibactam (C-A) is a treatment option for carbapenem-resistant gram-negative bacterial (CR-GNB) infections, but little is known regarding its suitability for the intensive care unit (ICU). The current study aimed to analyze use of C-A for critically ill patients, determine independent predictors of clinical outcome and mortality and explore routine dosages for patients in continuous renal replacement therapy (CRRT). Patients and Methods A single-center, retrospective and observational study was conducted in critically ill patients receiving different C-A-based therapies for CR-GNB infections in a tertiary teaching hospital in Beijing, China. Demographic data, severity of infection, clinical outcomes and mortality were assessed. The primary and secondary outcome of this study was 90-day all-cause mortality and 14-day clinical response, respectively. Results A total of 43 patients with CR-GNB infection were enrolled, including 14 (32.6%) patients received C-A monotherapy. C-A monotherapy and combination with other agents did not affect 14-day clinical response or 90-day survival. All-cause mortality at 90-days was 39.5% (17/43). Multivariate Cox analysis showed that concomitant with bloodstream infection was independent risk factors for 90-day mortality and that the time to initiation of C-A and Acute Physiology and Chronic Health Evaluation (APACHE) score was independent predictors of 14-day clinical response. Five CRRT patients who received high-dose C-A therapy (>3.75 g/d) had prolonged survival compared with 5 who received low-dose C-A (<3.75 g/d, p = 0.03). Conclusion C-A was an effective therapy for severe CR-GNB infections and clinical response correlated with the time of C-A initiation. A dosage >3.75g/d C-A was associated with prolonged survival of CRRT patients. Randomized controlled trials or multicenter studies are needed to confirm these findings.
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Affiliation(s)
- Jiaxin Yu
- Department of Pharmacy, Peking Union Medical College Hospital, Beijing, People’s Republic of China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing, People’s Republic of China
| | - Wei Zuo
- Department of Pharmacy, Peking Union Medical College Hospital, Beijing, People’s Republic of China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing, People’s Republic of China
| | - Hongwei Fan
- Department of Pharmacy, Peking Union Medical College Hospital, Beijing, People’s Republic of China
- Department of Infectious Medicine, Peking Union Medical College Hospital, Beijing, People’s Republic of China
| | - Jiayu Wu
- Department of Pharmacy, Peking Union Medical College Hospital, Beijing, People’s Republic of China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing, People’s Republic of China
| | - Luyao Qiao
- Department of Pharmacy, Peking Union Medical College Hospital, Beijing, People’s Republic of China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing, People’s Republic of China
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| | - Benyu Yang
- Department of Pharmacy, Peking Union Medical College Hospital, Beijing, People’s Republic of China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing, People’s Republic of China
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, People’s Republic of China
| | - Wenxi Li
- Department of Pharmacy, Peking Union Medical College Hospital, Beijing, People’s Republic of China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing, People’s Republic of China
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, People’s Republic of China
| | - Yang Yang
- Department of Pharmacy, Peking Union Medical College Hospital, Beijing, People’s Republic of China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing, People’s Republic of China
| | - Bo Zhang
- Department of Pharmacy, Peking Union Medical College Hospital, Beijing, People’s Republic of China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing, People’s Republic of China
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Wu S, Ma B, Fan H, Hua X, Hu C, Ulbricht M, Qu J. Influence of water quality factors on cake layer 3D structures and water channels during ultrafiltration process. Water Res 2023; 242:120226. [PMID: 37364354 DOI: 10.1016/j.watres.2023.120226] [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: 03/29/2023] [Revised: 05/28/2023] [Accepted: 06/12/2023] [Indexed: 06/28/2023]
Abstract
The three-dimensional (3D) structure of the cake layer, which could be influenced by water quality factors, plays a significant role in the ultrafiltration (UF) efficiency of water purification. However, it remains challenging to precisely reveal the variation of cake layer 3D structures and water channel characteristics. Herein, we systematically report the variation in the cake layer 3D structure at the nanoscale induced by key water quality factors and reveal its influence on water transport, in particular the abundance of water channels within the cake layer. In comparison with pH and Na+, Ca2+ played more significant role in determining cake layer structures. The sandwich-like cake layer, which was induced by the asynchronous deposition of humic acids and sodium alginate (SA), shifted to an isotropic structure when Ca2+ was present due to the Ca2+ bridging. In comparison with the sandwich-like structure, the isotropic cake layer has higher fractions of free volume (voids) and more water channels, leading to a 147% improvement in the water transport coefficient, 60% reduction in the cake layer resistance, and 21% increase in the final membrane specific flux. Our work elucidates a structure-property relationship where improving the isotropy of the cake layer 3D structure is conducive to the optimization of water channels and water transport within cake layers. This could inspire tailored regulation strategies for cake layers to enhance the UF efficiency of water purification.
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Affiliation(s)
- Siqi Wu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Baiwen Ma
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China; Lehrstuhl für Technische Chemie II, Universität Duisburg-Essen, Essen 45117, Germany.
| | - Hongwei Fan
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xin Hua
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China; School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Chengzhi Hu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mathias Ulbricht
- Lehrstuhl für Technische Chemie II, Universität Duisburg-Essen, Essen 45117, Germany
| | - Jiuhui Qu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
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12
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Liu H, Zhang T, Wang Y, Fan H, Huang X, Jiao Y. Clinical features of patients presenting with fever of unknown origin caused by non-tuberculous mycobacterium infection. J Infect Dev Ctries 2023; 17:1014-1021. [PMID: 37515806 DOI: 10.3855/jidc.17610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 02/24/2023] [Indexed: 07/31/2023] Open
Abstract
INTRODUCTION Although non-tuberculous mycobacterium (NTM) infection accounts for only a small proportion of fever of unknown origin (FUO) cases, it has become a more common etiology in recent years. Therefore, we reviewed FUO patients with underlying NTM infection to better understand its clinical features. METHODOLOGY The medical records of patients presenting with FUO and diagnosed with NTM infection admitted to Peking Union Medical College Hospital between January 2016 and June 2021 were reviewed. The clinical information of patients whose follow-up data were available were summarized. Specimens submitted for pathogenic identification were processed by mycobacterial culture, acid-fast staining, and mycobacterial nucleic acid detection. IBM SPSS Statistics v22.0 (SPSS, Inc., Chicago, IL, USA) was used for data analysis. RESULTS Fifty-five FUO patients were diagnosed with NTM infection (55/785; 7.0% of FUO cases). Patients were mostly middle-aged men and had a relatively long disease course. Seven, 29, and 54 patients had previously no respondence to glucocorticoids, immunosuppressants, and multiple antibiotics, respectively; their inflammatory indexes were significantly increased; and there was no obvious risk of immunosuppression in this group, who were likely to be T.SPOT-TB negative (33/41; 80.5%). The most commonly identified NTM was Mycobacterium intracellulare followed by Mycobacterium chelonae/abscessus, Mycobacterium kansasii, and Mycobacterium avium. CONCLUSIONS Microbiological investigations including culture, acid-fast staining, NTM nucleic acid examination, and next-generation sequencing were performed to confirm the diagnosis of NTM in FUO patients. FUO patients should screen for NTM infections so that this important etiology can be recognized, targeted treatments administered early, and outcomes improved.
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Affiliation(s)
- Huiting Liu
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ting Zhang
- Department of Respiratory and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yu Wang
- Department of General Internal Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hongwei Fan
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaoming Huang
- Department of General Internal Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yang Jiao
- Department of General Internal Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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13
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Han J, Wu H, Fan H, Ding L, Hai G, Caro J, Wang H. Tuning the Phase Composition of Metal-Organic Framework Membranes for Helium Separation through Incorporation of Fullerenes. J Am Chem Soc 2023. [PMID: 37351897 DOI: 10.1021/jacs.3c03362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/24/2023]
Abstract
Metal-organic framework (MOF) membranes have attracted significant research interest in gas separation, but efficient helium (He) separation remains a challenge due to the weak polarizability of He and the intrinsic pore size flexibility of MOFs. Herein, incorporated fullerenes (C60 and C70) were used to tune the crystallographic phase composition of ZIF-8 membranes, thus creating small and fixed apertures for selective He permeation. The fullerene-modified ZIF-8 (C60@ZIF-8 and C70@ZIF-8) membranes contain about 20% of the rigid-lattice ZIF-8_I-43m phase and have been prepared as 200-350 nm thick supported layers through electrochemical synthesis. They show a significantly enhanced molecular sieving for He/N2,CH4 together with a satisfactory He permeance of >200 GPU. Specifically, the He/N2 selectivity of the C70@ZIF-8 membrane is up to 30.4, which is much higher than that of the fullerene-free ZIF-8 membrane (5.1) and nearly an order of magnitude higher than those of other reported He-selective MOF membranes. A continuous long-term gas permeation test over 780 h under dry and humid conditions proved the excellent stability of the fullerene-modified ZIF-8 membranes. The general validity and versatility of the proposed strategy for MOF membrane preparation are also demonstrated by the enhancement of the separation performance of a fullerene-modified ZIF-76 membrane.
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Affiliation(s)
- Jiuli Han
- Beijing Key Laboratory of Membrane Materials and Engineering, Department of Chemical Engineering, Tsinghua University, 100084 Beijing, China
| | - Haoyu Wu
- Beijing Key Laboratory of Membrane Materials and Engineering, Department of Chemical Engineering, Tsinghua University, 100084 Beijing, China
| | - Hongwei Fan
- College of Chemical Engineering, Beijing University of Chemical Technology, 100029 Beijing, China
| | - Li Ding
- Beijing Key Laboratory of Membrane Materials and Engineering, Department of Chemical Engineering, Tsinghua University, 100084 Beijing, China
| | - Guangtong Hai
- Beijing Key Laboratory of Membrane Materials and Engineering, Department of Chemical Engineering, Tsinghua University, 100084 Beijing, China
| | - Jürgen Caro
- Institute of Physical Chemistry and Electrochemistry, Leibniz University Hannover, 30167 Hannover, Germany
| | - Haihui Wang
- Beijing Key Laboratory of Membrane Materials and Engineering, Department of Chemical Engineering, Tsinghua University, 100084 Beijing, China
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14
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Cao X, Guo X, Duan Y, Zhang F, Fan H, Xu X. Health Status Recognition Method for Rotating Machinery Based on Multi-Scale Hybrid Features and Improved Convolutional Neural Networks. Sensors (Basel) 2023; 23:5688. [PMID: 37420853 DOI: 10.3390/s23125688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/03/2023] [Accepted: 06/13/2023] [Indexed: 07/09/2023]
Abstract
Rotating machinery is susceptible to harsh environmental interference, and fault signal features are challenging to extract, leading to difficulties in health status recognition. This paper proposes multi-scale hybrid features and improved convolutional neural networks (MSCCNN) health status identification methods for rotating machinery. Firstly, the rotating machinery vibration signal is decomposed into intrinsic modal components (IMF) using empirical wavelet decomposition, and multi-scale hybrid feature sets are constructed by simultaneously extracting time-domain, frequency-domain and time-frequency-domain features based on the original vibration signal and the intrinsic modal components it decomposes. Secondly, using correlation coefficients to select features sensitive to degradation, construct rotating machinery health indicators based on kernel principal component analysis and complete health state classification. Finally, a convolutional neural network model (MSCCNN) incorporating multi-scale convolution and hybrid attention mechanism modules is developed for health state identification of rotating machinery, and an improved custom loss function is applied to improve the superiority and generalization ability of the model. The bearing degradation data set of Xi'an Jiaotong University is used to verify the effectiveness of the model. The recognition accuracy of the model is 98.22%, which is 5.83%, 3.30%, 2.29%, 1.52%, and 4.31% higher than that of SVM, CNN, CNN + CBAM, MSCNN, and MSCCNN + conventional features, respectively. The PHM2012 challenge dataset is used to increase the number of samples to validate the model effectiveness, and the model recognition accuracy is 97.67%, which is 5.63%, 1.88%, 1.36%, 1.49%, and 3.69% higher compared to SVM, CNN, CNN + CBAM, MSCNN, and MSCCNN + conventional features methods, respectively. The MSCCNN model recognition accuracy is 98.67% when validated on the degraded dataset of the reducer platform.
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Affiliation(s)
- Xiangang Cao
- School of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
- Shaanxi Province Key Laboratory of Intelligent Detection and Control of Mining Electromechanical Equipment, Xi'an 710054, China
| | - Xingyu Guo
- School of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
- Shaanxi Province Key Laboratory of Intelligent Detection and Control of Mining Electromechanical Equipment, Xi'an 710054, China
| | - Yong Duan
- School of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
- Shaanxi Province Key Laboratory of Intelligent Detection and Control of Mining Electromechanical Equipment, Xi'an 710054, China
| | - Fuqiang Zhang
- School of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
- Shaanxi Province Key Laboratory of Intelligent Detection and Control of Mining Electromechanical Equipment, Xi'an 710054, China
| | - Hongwei Fan
- School of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
- Shaanxi Province Key Laboratory of Intelligent Detection and Control of Mining Electromechanical Equipment, Xi'an 710054, China
| | - Xin Xu
- School of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
- Shaanxi Province Key Laboratory of Intelligent Detection and Control of Mining Electromechanical Equipment, Xi'an 710054, China
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15
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Wu S, Ma B, Hu C, Hua X, Fan H, Ulbricht M, Qu J. Cake layer 3D structure regulation to optimize water channels during Al-based coagulation-ultrafiltration process. Water Res 2023; 236:119941. [PMID: 37054609 DOI: 10.1016/j.watres.2023.119941] [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: 01/08/2023] [Revised: 03/23/2023] [Accepted: 04/03/2023] [Indexed: 06/19/2023]
Abstract
The variation in cake layer three-dimensional (3D) structures and related water channel characteristics induced by coagulation pretreatment remains unclear; however, gaining such knowledge will aid in improving ultrafiltration (UF) efficiency for water purification. Herein, the regulation of cake layer 3D structures (3D distribution of organic foulants within cake layers) by Al-based coagulation pretreatment was analyzed at the micro/nanoscale. The sandwich-like cake layer of humic acids and sodium alginate induced without coagulation was ruptured, and foulants were gradually uniformly distributed within the floc layer (toward an isotropic structure) with increasing coagulant dosage (a critical dosage was observed). Furthermore, the structure of the foulant-floc layer was more isotropic when coagulants with high Al13 concentrations were used (either AlCl3 at pH 6 or polyaluminum chloride, in comparison with AlCl3 at pH 8 where small-molecular-weight humic acids were enriched near the membrane). These high Al13 concentrations lead to a 48.4% higher specific membrane flux than that seen for UF without coagulation. Molecular dynamics simulations revealed that with increasing Al13 concentration (Al13: 6.2% to 22.6%), the water channels within the cake layer were enlarged and more connected, and the water transport coefficient was improved by up to 54.1%, indicating faster water transport. These findings demonstrate that facilitating an isotropic foulant-floc layer with highly connected water channels by coagulation pretreatment with high-Al13-concentration coagulants (having a strong ability to complex organic foulants) is the key issue in optimizing the UF efficiency for water purification. The results should provide further understanding of the underlying mechanisms of coagulation-enhancing UF behavior and inspire precise design of coagulation pretreatment to achieve efficient UF.
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Affiliation(s)
- Siqi Wu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Baiwen Ma
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China; Lehrstuhl für Technische Chemie II, Universität Duisburg-Essen, Essen 45117, Germany.
| | - Chengzhi Hu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xin Hua
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China; School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Hongwei Fan
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Mathias Ulbricht
- Lehrstuhl für Technische Chemie II, Universität Duisburg-Essen, Essen 45117, Germany
| | - Jiuhui Qu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
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16
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Fan Q, Fan H, Li K, Hou C, Zhang Q, Li Y, Wang H. Stretchable, Electrochemically-Stable Electrochromic Devices Based on Semi-Embedded Ag@Au Nanowire Network. Small 2023; 19:e2208234. [PMID: 36866459 DOI: 10.1002/smll.202208234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/08/2023] [Indexed: 06/02/2023]
Abstract
Stretchable electrochromic (EC) devices that can adapt the irregular and dynamic human surfaces show promising applications in wearable display, adaptive camouflage, and visual sensation. However, challenges exist in lacking transparent conductive electrodes with both tensile and electrochemical stability to assemble the complex device structure and endure harsh electrochemical redox reactions. Herein, a wrinkled, semi-embedded Ag@Au nanowire (NW) networks are constructed on elastomer substrates to fabricate stretchable, electrochemically-stable conductive electrodes. The stretchable EC devices are then fabricated by sandwiching a viologen-based gel electrolyte between two conductive electrodes with the semi-embedded Ag@Au NW network. Because the inert Au layer inhibits the oxidation of Ag NWs, the EC device exhibits much more stable color changes between yellow and green than those with pure Ag NW networks. In addition, since the wrinkled semi-embedded structure is deformable and reversibly stretched without serious fractures, the EC devices still maintain excellent color-changing stability under 40% stretching/releasing cycles.
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Affiliation(s)
- Qingchao Fan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Hongwei Fan
- Instrumental Analysis & Research Center, Shanghai University, Shanghai, 200444, P. R. China
| | - Kerui Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Chengyi Hou
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Qinghong Zhang
- Engineering Research Center of Advanced Glasses Manufacturing Technology, Ministry of Education, Donghua University, Shanghai, 201620, P. R. China
| | - Yaogang Li
- Engineering Research Center of Advanced Glasses Manufacturing Technology, Ministry of Education, Donghua University, Shanghai, 201620, P. R. China
| | - Hongzhi Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
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17
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Qin L, Duan X, Dong JZ, Chang Y, Han Y, Li Y, Jiang W, Fan H, Hou X, Wei C, Zhu H, Li T. The Unreversible Reduced but Persistent Activated NK and CD8 + T cell in Severe/Critical COVID-19 during Omicron Pandemic in China. Emerg Microbes Infect 2023; 12:2208679. [PMID: 37102227 DOI: 10.1080/22221751.2023.2208679] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
As a hallmark of COVID-19 progression, lymphopenia alongside with its subtle immune disturbance has been widely reported, although yet to be thoroughly elucidated. Aiming at exploring clinical immune biomarkers with accessibility in the current and acute Omicron epidemic abrupted in China post-control era, we design a real-world prospective observation cohort in Peking Union Medical College Hospital to describe immunological, hematological profiles inducing lymphocyte subsets related to SARS-CoV-2 infection. In this COVID-19 cohort, we enrolled 17 mild/moderate (M/M), 24 severe (S) and 25 critical (C) patients. The dynamics of lymphocytes of COVID-19 demonstrated that the sharp decline of NK, CD8+ and CD4+ T cell counts was main contributor to lymphopenia in S/C group, compared to M/M group. Expressions of activation marker CD38 and proliferation marker Ki-67 both in CD8+ T and NK cell were significantly higher in all COVID-19 patients than that in healthy donors, independent of disease severity. The subsequent analysis showed in contrast to M/M group, NK and CD8+ T cell counts remained low-level after therapy in S/C group. CD38 and Ki-67 expression in NK and CD8+ T cell still stay at a high level, despite of active treatment. Targeting at relatively elderly patients with SARS-CoV-2 infection, severe COVID-19 features the unreversible reduction of NK and CD8+ T cell with persistent activation and proliferation, which assist clinician in early recognizing and saving severe or critical COVID-19 patients. Given that immunophenotype, the new immunotherapy improving NK and CD8+T lymphocyte antiviral efficiency should be considered.
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Affiliation(s)
- Ling Qin
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Xinmin Duan
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- School of Clinical Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | | | - Yue Chang
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Yang Han
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Yan Li
- Emergency Department, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Wei Jiang
- Medical Intensive Care Unit, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Hongwei Fan
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Xiufeng Hou
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Cao Wei
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Huadong Zhu
- Emergency Department, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Taisheng Li
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Tsinghua University Medical College, Beijing, China
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18
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Fan H, Wang H, Peng M, Meng H, Mundstock A, Knebel A, Caro J. Pore-in-Pore Engineering in a Covalent Organic Framework Membrane for Gas Separation. ACS Nano 2023; 17:7584-7594. [PMID: 37026681 PMCID: PMC10134499 DOI: 10.1021/acsnano.2c12774] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 04/04/2023] [Indexed: 06/19/2023]
Abstract
Covalent organic framework (COF) membranes have emerged as a promising candidate for energy-efficient separations, but the angstrom-precision control of the channel size in the subnanometer region remains a challenge that has so far restricted their potential for gas separation. Herein, we report an ultramicropore-in-nanopore concept of engineering matreshka-like pore-channels inside a COF membrane. In this concept, α-cyclodextrin (α-CD) is in situ encapsulated during the interfacial polymerization which presumably results in a linear assembly (LA) of α-CDs in the 1D nanochannels of COF. The LA-α-CD-in-TpPa-1 membrane shows a high H2 permeance (∼3000 GPU) together with an enhanced selectivity (>30) of H2 over CO2 and CH4 due to the formation of fast and selective H2-transport pathways. The overall performance for H2/CO2 and H2/CH4 separation transcends the Robeson upper bounds and ranks among the most powerful H2-selective membranes. The versatility of this strategy is demonstrated by synthesizing different types of LA-α-CD-in-COF membranes.
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Affiliation(s)
- Hongwei Fan
- College
of Chemical Engineering, Beijing University
of Chemical Technology, Beijing 100029, PR China
- Institute
of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstraße 3A, 30167 Hannover, Germany
| | - Haoran Wang
- College
of Chemical Engineering, Beijing University
of Chemical Technology, Beijing 100029, PR China
| | - Manhua Peng
- Key
Laboratory of Power Station Energy Transfer Conversion and System,
Ministry of Education, School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, PR China
| | - Hong Meng
- College
of Chemical Engineering, Beijing University
of Chemical Technology, Beijing 100029, PR China
| | - Alexander Mundstock
- Institute
of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstraße 3A, 30167 Hannover, Germany
| | - Alexander Knebel
- Otto Schott
Institute of Materials Research, Friedrich
Schiller University Jena, Fraunhoferstraße 6, 07743 Jena, Germany
| | - Jürgen Caro
- Institute
of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstraße 3A, 30167 Hannover, Germany
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19
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Wang J, Gao J, Fan H, Guo H, Yin Z, Dong M, Huang X. Multiple rib and vertebral fractures associated with Bordetella pertussis infection: a case report. BMC Infect Dis 2023; 23:212. [PMID: 37024849 PMCID: PMC10080936 DOI: 10.1186/s12879-023-08189-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 03/20/2023] [Indexed: 04/08/2023] Open
Abstract
BACKGROUND Pertussis is a highly contagious respiratory disease caused by the bacterium Bordetella pertussis, characterized by paroxysms of severe coughing, and predominantly affects children. We report the first case of multiple fractures in the ribs, lumbar spine, and sacrum associated with severe coughing caused by Bordetella pertussis infection in an adult. CASE PRESENTATION A 49-year-old female presented with acute-onset chest wall pain for 3 weeks. Imaging results revealed multiple fractures in the ribs and vertebrae, as well as bilateral pleural effusion, pericardial effusion, right pneumothorax, and enlargement of the left parapharyngeal and subclavian lymph nodes. The patient's bone density scan, autoimmune antibodies, bone marrow biopsy, and sacral bone biopsy all came back normal. Imaging test results found no evidence of solid tumors or active TB infection. The patient later recalled having violent coughing prior to the onset of chest pain and several family members having similar symptoms. Her blood sample was sent to the CDC, revealing Bordetella pertussis toxin (PT) IgG titer of 110.68 IU/mL. The patient was diagnosed with pertussis and multiple stress fractures from violent coughing. Symptomatic treatments were administered, and the patient's symptoms improved. The patient was followed up 8 weeks later, she reported no more coughing or chest pain. CONCLUSIONS Pertussis is not just a pediatric disease, but diagnosis in adults is challenging as patients may present with a myriad of confusing symptoms, such as multiple stress fractures due to violent coughing. Medical and epidemiological histories are key to reaching the correct diagnosis, which is essential for appropriate treatments to avoid further complications. Adult immunization should be suggested both for the protection of the adult population and to prevent transmission to children.
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Affiliation(s)
- Jingqiao Wang
- Peking Union Medical College, Chinese Academy of Medical Science, No. 9 Dongdansantiao, Dongcheng District, Beijing, 100730, China
| | - Junxiang Gao
- Department of Endocrinology, Union Medical College Hospital, Chinese Academy of Medical Science, No. 1, Shuaifuyuan, Wangfujing Street, Dongcheng District, PekingBeijing, 100730, China
| | - Hongwei Fan
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science, No. 1, Shuaifuyuan, Wangfujing Street, Dongcheng District, Beijing, 100730, China
| | - Haonan Guo
- Ordos Prefectural Center for Disease Control and Prevention, Ordos, 017000, Inner Mongolia, China
| | - Zundong Yin
- Chinese Center of Disease Control and Prevention, National Immunization Program, 155 Changbai Road, Changping District, Beijing, 102206, China
| | - Mei Dong
- Institute for Immunization and Prevention, Beijing Center for Disease Control and Prevention, No.16 Hepingli Middle Street, Dongcheng District, Beijing, 100013, China
| | - Xiaoming Huang
- Department of General Internal Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science, No. 1, Shuaifuyuan, Wangfujing Street, Dongcheng District, Beijing, 100730, China.
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Diao Q, Tian S, Cao Y, Yao D, Fan H, Zhang Y. Transcriptome analysis reveals association of carotenoid metabolism pathway with fruit color in melon. Sci Rep 2023; 13:5004. [PMID: 36973323 PMCID: PMC10043268 DOI: 10.1038/s41598-023-31432-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 03/11/2023] [Indexed: 03/29/2023] Open
Abstract
AbstractFlesh color is an important quality of melon (Cucumis melo L.) and is determined mainly by carotenoid content, awarding them with colors, aromas, and nutrients. enhancing the nutritional and health benefits of fruits and vegetables for humans. In this study, we performed transcriptomic analysis of two melon inbred line “B-14” (orange-flesh) and “B-6” (white-flesh) at three developmental stages. We observed that the β-carotene content of inbred line “B-6” (14.232 μg/g) was significantly lower than that of inbred line “B-14” (0.534 μg/g). RNA-sequencing and quantitative reverse transcription PCR analyses were performed to identify differentially expressed genes (DEGs) between the two inbred lines at different stages; the DEGs were analyzed using the Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes databases (KEGG). We identified 33 structural DEGs in different developmental periods of the two lines that were related to carotenoid metabolism. Among them, PSY, Z-ISO, ZDS, CRTISO, CCD4, VDE1, and NCED2 were highly correlated with carotenoid content. Thus, this study provides a basis for molecular mechanism of carotenoid biosynthesis and flesh color in melon fruit.
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21
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Zhang BQ, Du L, Xu N, Fan JP, Fan HW, Cao W, Huang CJ, Huang XM. [Anti-IFNγ autoantibody associated disseminated nonmycobacterial tuberculosis infection: a case report]. Zhonghua Nei Ke Za Zhi 2023; 62:316-319. [PMID: 36822859 DOI: 10.3760/cma.j.cn112138-20220310-00166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Affiliation(s)
- B Q Zhang
- Department of General Internal Medicine, Peking Union Medical College Hospital,Peking Union Medical College,Chinese Medical Academy of Sciences,Beijing 100730,China
| | - L Du
- Department of Cardiology, Peking Union Medical College Hospital,Peking Union Medical College,Chinese Medical Academy of Sciences, Beijing 100730, China
| | - N Xu
- Department of General Internal Medicine, Peking Union Medical College Hospital,Peking Union Medical College,Chinese Medical Academy of Sciences,Beijing 100730,China
| | - J P Fan
- Department of Pulmonary Disease, Peking Union Medical College Hospital,Peking Union Medical College,Chinese Medical Academy of Sciences,Beijing 100730,China
| | - H W Fan
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Medical Academy of Sciences, Beijing 100730,China
| | - W Cao
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Medical Academy of Sciences, Beijing 100730,China
| | - C J Huang
- Department of General Internal Medicine, Peking Union Medical College Hospital,Peking Union Medical College,Chinese Medical Academy of Sciences,Beijing 100730,China
| | - X M Huang
- Department of General Internal Medicine, Peking Union Medical College Hospital,Peking Union Medical College,Chinese Medical Academy of Sciences,Beijing 100730,China
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Ma B, Ulbricht M, Hu C, Fan H, Wang X, Pan YR, Hosseini SS, Panglisch S, Van der Bruggen B, Wang Z. Membrane Life Cycle Management: An Exciting Opportunity for Advancing the Sustainability Features of Membrane Separations. Environ Sci Technol 2023; 57:3013-3020. [PMID: 36786864 DOI: 10.1021/acs.est.2c09257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Membrane science and technology is growing rapidly worldwide and continues to play an increasingly important role in diverse fields by offering high separation efficiency with low energy consumption. Membranes have also shown great promise for "green" separation. A majority of the investigations in the field are devoted to the membrane fabrication and modification with the ultimate goals of enhancing the properties and separation performance of membranes. However, less attention has been paid to membrane life cycle management, particularly at the end of service. This is becoming very important, especially taking into account the trends toward sustainable development and carbon neutrality. On the contrary, this can be a great opportunity considering the large variety of membrane processes, especially in terms of the size and capacity of plants in operation. This work aims to highlight the prominent aspects that govern membrane life cycle management with special attention to life cycle assessment (LCA). While fabrication, application, and recycling are the three key aspects of LCA, we focus here on membrane (module) recycling at the end of life by elucidating the relevant aspects, potential criteria, and strategies that effectively contribute to the achievement of green development and sustainability goals.
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Affiliation(s)
- Baiwen Ma
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- Lehrstuhl für Technische Chemie II, Universität Duisburg-Essen, Essen 45117, Germany
| | - Mathias Ulbricht
- Lehrstuhl für Technische Chemie II, Universität Duisburg-Essen, Essen 45117, Germany
| | - Chengzhi Hu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Hongwei Fan
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xu Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen 518055, China
| | - Yi-Rong Pan
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Seyed Saeid Hosseini
- Department of Chemical Engineering, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
- Institute for Nanotechnology and Water Sustainability, College of Science, Engineering and Technology, University of South Africa, Johannesburg 1709, South Africa
| | - Stefan Panglisch
- Chair for Mechanical Process Engineering/Water Technology, University of Duisburg-Essen, Duisburg 47057, Germany
| | - Bart Van der Bruggen
- Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Heverlee, Belgium
| | - Zhiwei Wang
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
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23
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Yang X, Qu Z, Li S, Peng M, Li C, Hua R, Fan H, Caro J, Meng H. Ultra‐Fast Preparation of Large‐Area Graphdiyne‐Based Membranes via Alkynylated Surface‐Modification. Angew Chem Int Ed Engl 2023. [DOI: 10.1002/ange.202217378] [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] [Indexed: 01/26/2023]
Affiliation(s)
- Xingda Yang
- Beijing University of Chemical Technology College of Chemical Engineering CHINA
| | - Zhou Qu
- Beijing University of Chemical Technology College of Chemical Engineering CHINA
| | - Sen Li
- Beijing University of Chemical Technology College of Chemical Engineering CHINA
| | - Manhua Peng
- North China Electric Power University School of Energy Power and Mechanical Engineering CHINA
| | - Chunxi Li
- Beijing University of Chemical Technology College of Chemical Engineering CHINA
| | - Ruimao Hua
- Xinjiang University College of Chemistry CHINA
| | - Hongwei Fan
- Beijing University of Chemical Technology College of Chemical Engineering CHINA
| | - Jürgen Caro
- Leibniz University Hannover Institute Physical Chemistry and Electrochemistry Callinstr. 3A 30167 Hannover GERMANY
| | - Hong Meng
- Xinjiang University College of Chemical Engineering CHINA
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Yang X, Qu Z, Li S, Peng M, Li C, Hua R, Fan H, Caro J, Meng H. Ultra-Fast Preparation of Large-Area Graphdiyne-Based Membranes via Alkynylated Surface-Modification for Nanofiltration. Angew Chem Int Ed Engl 2023; 62:e202217378. [PMID: 36692831 DOI: 10.1002/anie.202217378] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/22/2023] [Accepted: 01/24/2023] [Indexed: 01/25/2023]
Abstract
Graphdiynes (GDYs), two-dimensional graphene-like carbon systems, are considered as potential advanced membrane material due to their unique physicochemical features. Nevertheless, the scale-up of integrated GDY membranes is technologically challenging, and most studies remain at the theoretical stage. Herein, we report a simple and efficient alkynylated surface-mediated strategy to prepare hydrogen-substituted graphdiyne (HsGDY) membranes on commercial alumina tubes. Surface alkynylation initiates an accelerated surface-confined coupling reaction in the presence of a copper catalyst and facilitates the nanoscale epitaxial lateral growth of HsGDY. A continuous and ultra-thin HsGDY membrane (∼100 nm) can be produced within 15 min. The resulting membranes exhibit outstanding molecular sieving together with excellent water permeances (ca. 1100 L m-2 h-1 MPa-1 ), and show a long-term durability in cross-flow nanofiltration, owing to the superhydrophilic surface and hydrophobic pore walls.
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Affiliation(s)
- Xingda Yang
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Zhou Qu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Sen Li
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Manhua Peng
- Key Laboratory of Power Station Energy Transfer Conversion and System, Ministry of Education, School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing, 102206, P. R. China
| | - Chunxi Li
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Ruimao Hua
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830046, P. R. China
| | - Hongwei Fan
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Jürgen Caro
- Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstraße 3A, 30167, Hannover, Germany
| | - Hong Meng
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830046, P. R. China
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Cheng J, Long J, Zhang J, Han L, Hu Y, Liu J, Qiu R, Zhu Z, Fan H. Safety, tolerance, and pharmacokinetics of salvianolic acid B in healthy Chinese volunteers: A randomized, double-blind, placebo-controlled phase 1 clinical trial. Front Pharmacol 2023; 14:1146309. [PMID: 37124221 PMCID: PMC10133543 DOI: 10.3389/fphar.2023.1146309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 03/29/2023] [Indexed: 05/02/2023] Open
Abstract
Background: Salvianolic acid B (Sal B) is one of the main active ingredients of Salvia miltiorrhiza Bunge. In China, many traditional Chinese medicines have been modified into injections for higher bioavailability and better efficacy. Salvianolic acid injection has been widely used in the clinic. Objective: This phase 1, randomized, double-blind, placebo-controlled, single-center study aimed to evaluate the safety, tolerance, and pharmacokinetics of Sal B injection in healthy Chinese volunteers. Methods: For the single-ascending-dose study, forty-seven healthy volunteers were randomly divided into 25, 75, 150, 200, 250, and 300 mg groups. For the multiple-ascending-dose study, sixteen healthy volunteers were randomly divided into 150 and 300 mg groups. In each group, volunteers were treated with Sal B or placebo randomly. Their safety was evaluated by a skin test, physical examination, vital sign, laboratory examination, 12-lead electrocardiogram, Holter, and clinical symptoms and signs. Blood samples were collected in 75, 150, and 300 mg single-ascending-dose study groups and 150 mg multiple-ascending-dose study groups to determine the concentration of salvianolic acid B. Results: In single-ascending-dose study groups, there were 41 adverse events in 24 cases (51.1%, 24/47). In multiple-ascending-dose study groups, there were 13 adverse events in eight cases (50.0%, 8/16). Sixty-six volunteers received the skin test, and three of them were excluded because of the positive result. Adverse events related to the treatment included increased alanine aminotransferase (4.0%), increased bilirubin (2.0%), increased creatinine kinase-MB (2.0%), increased brain natriuretic peptide (8.0%), increased urine N-acetyl-β-D-glucosidase (4.0%), dizziness (2.0%), and chest discomfort (2.0%). No serious adverse events occurred. No volunteers withdrew from the trial. Peak plasma concentration and the area under the plasma concentration-time curve of salvianolic acid B progressively increased in a dose-dependent manner in 75, 150, and 300 mg single-ascending-dose study groups. There was no accumulation after 5 consecutive days of administration of 150 mg salvianolic acid B. Conclusion: Salvianolic acid B injections administered up to 300 mg in a single dose and 250 mg for 5 consecutive days showed excellent safety and tolerability in healthy Chinese volunteers. Clinical Trial Registration: www.chinadrugtrials.org.cn, identifier CTR20192236.
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Affiliation(s)
- Junlin Cheng
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Jun Long
- Nanjing Hongqiao Pharmaceutical Technology Research Institute Co Ltd, Nanjing, China
| | - Jingjing Zhang
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Le Han
- Nanjing Hongqiao Pharmaceutical Technology Research Institute Co Ltd, Nanjing, China
| | - Yunfang Hu
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Jianghui Liu
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Runze Qiu
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Zhibin Zhu
- Nanjing Hongqiao Pharmaceutical Technology Research Institute Co Ltd, Nanjing, China
- *Correspondence: Hongwei Fan, ; Zhibin Zhu,
| | - Hongwei Fan
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
- *Correspondence: Hongwei Fan, ; Zhibin Zhu,
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Bai J, Gong L, Xiao L, Lai W, Zhang Y, Fan H, Shan L, Luo S. Interface-Confined Channels Facilitating Water Transport through an IL-Enriched Nanocomposite Membrane. ACS Appl Mater Interfaces 2022; 14:53390-53397. [PMID: 36394911 DOI: 10.1021/acsami.2c14629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Improving the permeance of the polyamide (PA) membrane while maintaining the rejection is crucial for promoting the development of membrane separation technology in the practical water-treatment industry. Herein, a novel metal-ionic liquid (Zn-IL) coordination compound was synthesized by in situ growth to improve the water permeance of PA nanofiltration membranes, using an amine-functionalized IL (1-aminopropyl-3-methylimidazolium chloride, [AEMIm][Cl]) as a ligand to react with Zn(NO3)2·6H2O. Piperazine (PIP) and trimesoyl chloride (TMC) were adopted to prepare the PA layer covering the Zn-IL complex. Due to the unique property of the Zn-IL complex, the Zn-IL/PIP-TMC absorbing force to water was increased, enabling the fast transport of water molecules through the membrane pore channels in the form of free water. The resulting Zn-IL/PIP-TMC nanocomposite membrane exhibited a high permeance of up to 26.5 L m-2 h-1 bar-1, which is 3 times that of the PIP-TMC membrane (8.8 L m-2 h-1 bar-1), combined with rejection above 99% for dyes such as methyl blue.
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Affiliation(s)
- Ju Bai
- CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, PR China
| | - Lili Gong
- CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Luqi Xiao
- CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Wei Lai
- CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Yazhuo Zhang
- CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Hongwei Fan
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Linglong Shan
- CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
- Langfang Green Industrial Technology Center, Langfang 065008, Hebei, PR China
| | - Shuangjiang Luo
- CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
- Langfang Green Industrial Technology Center, Langfang 065008, Hebei, PR China
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Li S, Li J, Fan Y, Huang T, Zhou Y, Fan H, Zhang Q, Qiu R. The mechanism of formononetin/calycosin compound optimizing the effects of temozolomide on C6 malignant glioma based on metabolomics and network pharmacology. Biomed Pharmacother 2022; 153:113418. [PMID: 36076540 DOI: 10.1016/j.biopha.2022.113418] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 06/28/2022] [Accepted: 07/13/2022] [Indexed: 12/30/2022] Open
Abstract
The complex of formononetin and calycosin (FMN/CAL) shows a synergistic effect on temozolomide in the treatment of malignant glioma, however the mechanism is unclear. We investigated the mechanism through means of metabolomics, network pharmacology and molecular biology. FMN/CAL enhanced the inhibition of TMZ on the growth and infiltration of C6 glioma. The metabolomic results showed that the TMZ sensitization of FMN/CAL mainly involved 5 metabolic pathways and 4 metabolites in cells, 1 metabolic pathway and 2 metabolites in tumor tissues, and 7 metabolic pathways and 8 metabolites in serum. Further network pharmacological analysis revealed that NOS2 was a potential target for FMN/CAL to regulate the metabolism in TMZ-treated C6 glioma cells, serums and tissues, and TNF-α was another potential target identified in tissues. FMN/CAL down-regulated the expression of NOS2 in tumor cells and tissues, and reduced the secretion of TNF-α in tumor region. FMN/CAL promoted TMZ-induced C6 cell apoptosis by inhibiting NOS2, but the inhibition of cell vitality and migration was not through NOS2. Our work revealed that FMN/CAL can increase the sensitivity of malignant glioma to TMZ by inhibiting NOS2-dependent cell survival, which provides a basis for the application of this combination in adjuvant treatment of glioma.
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Affiliation(s)
- Songya Li
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China
| | - Jiayi Li
- Medical Insurance Office, SIR RUN RUN Hospital Nanjing Medical University, Nanjing, Jiangsu 211100, China
| | - Yani Fan
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China
| | - Tao Huang
- College of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, Jiangsu 210000, China
| | - Yanfen Zhou
- College of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, Jiangsu 210000, China
| | - Hongwei Fan
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China.
| | - Qi Zhang
- College of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, Jiangsu 210000, China.
| | - Runze Qiu
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China.
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Zhang X, Fan H, Jiao Y, Huang X. Defining the clinical characteristics of Q fever endocarditis: A case-control study in China. J Infect Dev Ctries 2022; 16:1329-1335. [PMID: 36099377 DOI: 10.3855/jidc.15861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 04/28/2022] [Indexed: 10/31/2022] Open
Abstract
INTRODUCTION Q fever is a worldwide zoonosis caused by Coxiella burnetii. Atypical presentations of Q fever can cause diagnostic difficulty or be misdiagnosed. Here we compared the clinical and diagnostic features of Q fever endocarditis and endocarditis caused by other bacteria to identify features of Q fever endocarditis that might facilitate early diagnosis. METHODOLOGY This was a retrospective case-control study of eight cases of Q fever endocarditis diagnosed between 2000 and 2018 at Peking Union Medical College Hospital in China and 24 age- and gender-matched patients diagnosed with bacterial endocarditis over the same period. Clinical and laboratory data were collected and compared between groups. RESULTS The median time interval between symptoms and diagnosis was significantly longer in the case group than the control group (8.0 months (IQR 7.0-16.0) vs. 4.0 months (IQR 1.0-7.0); p = 0.002). Patients in case group had significantly lower white blood cell counts (5.8 ± 2.4 × 109/L vs. 10.0 ± 3.4 × 109/L; p = 0.003), percentage of neutrophil (62.4 ± 14.7% vs. 79.1 ± 9.2%; p = 0.014), high-sensitivity C-creative protein levels (21.1 mg/L (IQR 18.5-32.8) vs. 45.3 mg/L (IQR 32.9-54.3); p = 0.038), and platelet counts (133 ± 73 vs. 229 ± 65; p = 0.001) but higher levels of rheumatoid factor (104.3 U/L (IQR 99.0-132.8) vs. 10.2 U/L (IQR 6.9-32.5); p = 0.011) than controls. Elevated creatinine (50.0% vs. 12.5%; p = 0.047) and liver enzymes (50.0% vs. 0%; p = 0.002) were more common in cases than controls. Q fever endocarditis was less frequently diagnosed than controls before cardiac surgery (62.5% vs. 100%; p = 0.011), with negative blood cultures in all cases. CONCLUSIONS The diagnosis of Q fever endocarditis can easily be delayed compared to other causes of infectious endocarditis. Patients with chronic fever and new valve dysfunction require careful assessment, especially when presenting with negative blood cultures and high rheumatoid factor levels. Clinical and laboratory evaluation of these patients should include routine serological testing for C. burnetii.
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Affiliation(s)
- Xuehan Zhang
- Department of Health Care, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hongwei Fan
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yang Jiao
- Department of General Internal Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Xiaoming Huang
- Department of General Internal Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Ma B, Liu Y, Lin H, Fan H, Lu C, Zhao K, Qi J. A pilot-scale study of the integrated floc-ultrafiltration membrane-based drinking water treatment process. Sci Total Environ 2022; 830:154809. [PMID: 35341872 DOI: 10.1016/j.scitotenv.2022.154809] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 02/18/2022] [Accepted: 03/21/2022] [Indexed: 06/14/2023]
Abstract
Although applications of the integrated ultrafiltration (UF) membrane have been investigated for years, most studies have been conducted at the lab scale. Here, a case study on the integrated Fe-based floc-UF process was presented. To enhance membrane performance, both pre-filtration (bag filter) and pre-oxidation were used as pretreatments to remove particles and inhibit the development of microorganisms. Results showed that the integrated process operated stably with pre-treatments, and the UF membrane fouling behavior could be divided into three different phases: slow increase rate (phase I), medium increase rate (phase II), and fast increase rate (phase III). In comparison to those in phases II and III, both natural organic matters and colloids were the main membrane fouling mechanisms during phase I, as the pollutants were not successfully removed by flocs initially. With the continuous injection of flocs, a loose cake layer became the main fouling mechanism during phase II, resulting in the deterioration of membrane fouling. During phase III, however, microorganisms (e.g., Proteobacteria) were inevitably nourished within the cake layer and played an important role in aggravating the degree of membrane fouling. During this integrated membrane-based process, several operating factors, including floc concentration, sludge discharge frequency, and the aeration rate during backwashing, played important roles in determining membrane performance. In addition, except for oxygen consumption, all the effluent quality parameters met the drinking water criteria followed in China (GB5749-2006).
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Affiliation(s)
- Baiwen Ma
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Lehrstuhl für Technische Chemie II, Universität Duisburg-Essen, Essen 45117, Germany.
| | - Yansong Liu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of New Energy and Environment, Jilin University, Changchun, 130021, Jilin, China
| | - Hui Lin
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hongwei Fan
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Chaojie Lu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kai Zhao
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jing Qi
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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30
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Yang ZR, Zhang LF, Zhou BT, Shi XC, Cao W, Fan HW, Liu ZY, Li TS, Liu XQ. [Clinical features and influencing factors of long-term prognosis in patients with tuberculous meningitis]. Zhonghua Nei Ke Za Zhi 2022; 61:764-770. [PMID: 35764559 DOI: 10.3760/cma.j.cn112138-20220121-00069] [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 clinical features and influencing factors of long-term prognosis of tuberculous meningitis(TBM), and to provide a recommendation for treatment and early intervention of TBM. Methods: Clinical data of TBM patients were retrospectively collected at Peking Union Medical College Hospital from January 2014 to December 2021. Patients who were followed-up more than one year were divided into two groups according to modified Rankin Scale (mRS). Risk factors associated with long-term prognosis were analyze by conditional logistic stepwise regression. Results: A total of 60 subjects were enrolled including 33 (55%) males and 27 (45%) females with age 15-79 (44.5±19.8) years. There were 30 cases (50%) complicated with encephalitis, 21 cases (35%) with miliary tuberculosis. The diagnosis was microbiologically confirmed in 22 patients (36.7%), including 5 cases (22.7%, 5/22) by acid-fast staining, 8 cases (36.4%, 8/22) by Mycobacterium tuberculosis (MTB) culture, and 20 cases (90.9%, 20/22) by molecular biology. The median follow-up period was 52(43, 66 ) months in 55 cases surviving more than one year. Among them, 40 cases (72.7%) were in favorable group (mRS 0-2) and 15 cases (27.3%) were in unfavorable group (mRS 3-6) with poor prognosis. The mortality rate was 20% (11/55). Elderly (OR=1.06, P=0.048 ) , hyponatremia(OR=0.81,P=0.020), high protein level in cerebrospinal fluid (CSF) (OR=3.32,P=0.033), cerebral infarction(OR=10.50,P=0.040) and hydrocephalus(OR=8.51,P=0.049) were associated with poor prognosis in TBM patients. Conclusions: The mortality rate is high in patients with TBM. Molecular biology tests improves the sensitivity and shorten the diagnosis time of TBM. Elderly, hyponatremia, high protein level in CSF, cerebral infarction and hydrocephalus are independent risk factors of long-term survival in TBM patients.
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Affiliation(s)
- Z R Yang
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - L F Zhang
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Clinical Epidemiology Unit, International Epidemiology Network, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Centre for Tuberculosis Research, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - B T Zhou
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Centre for Tuberculosis Research, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X C Shi
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Centre for Tuberculosis Research, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - W Cao
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Centre for Tuberculosis Research, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H W Fan
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Centre for Tuberculosis Research, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Z Y Liu
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Centre for Tuberculosis Research, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T S Li
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Centre for Tuberculosis Research, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X Q Liu
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Clinical Epidemiology Unit, International Epidemiology Network, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Centre for Tuberculosis Research, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Abstract
Colorectal cancer (CRC) is the most common malignant tumor occurred in digestive system. However, the prognosis of CRC patients is poor. Therefore, it is urgent to illuminate the mechanism suppressing CRC and explore novel targets or therapies for CRC treatment. MicroRNAs (miRNAs) are a class of non-coding RNAs with a length of 20–23 nucleotides encoded by endogenous genes, which are associated with the development of a variety of cancers, including CRC. Studies have shown that miR-19a is identified as oncogenic miRNA and promotes the proliferation, migration and invasion of CRC cells. However, the relationship between miR-19a and ferroptosis in CRC remains unknown. Here, we reported that iron-responsive element-binding protein 2 (IREB2), as an inducer of ferroptosis, was negatively regulated by miR-19a. IREB2 is a direct target of miR-19a. In addition, ferroptosis was suppressed by miR-19a through inhibiting IREB2. Thus, we proposed a novel mechanism of ferroptosis mediated by miR-19a in CRC cells, which could give rise to a new strategy for the therapy of CRC.
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Affiliation(s)
- Hongwei Fan
- Department of Gastroenterology, Shijiazhuang People’s Hospital, Shijiazhuang, Hebei, China
| | - Rong Ai
- Department of Gastroenterology, Shijiazhuang People’s Hospital, Shijiazhuang, Hebei, China
| | - Suen Mu
- Department of Gastroenterology, Shijiazhuang People’s Hospital, Shijiazhuang, Hebei, China
| | - Xuemin Niu
- Department of Gastroenterology, Shijiazhuang People’s Hospital, Shijiazhuang, Hebei, China
| | - Zhengrong Guo
- Department of Gastroenterology, Shijiazhuang People’s Hospital, Shijiazhuang, Hebei, China
| | - Lin Liu
- Department of Pathology, Shijiazhuang People’s Hospital, Shijiazhuang, Hebei, China
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Wang S, Lai M, Cui Y, Fan H, Huang K. Improved Soluble expression in Escherichia coli and easily purified recombinant human bone morphogenetic 7-2 fusion protein. Protein Pept Lett 2022; 29:550-554. [PMID: 35450520 DOI: 10.2174/0929866529666220420114713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 02/05/2022] [Accepted: 03/04/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Bone morphogenetic protein (BMP) is a cysteine-rich growth factor, and plays a key role in early bone tissue development and bone defect repair. However, the low yield, high cost and complicated process in the production process of BMP significantly limit its clinical application. OBJECTIVE In this study, we developed an efficient method for soluble expression and preparation of recombinant human bone morphogenetic 7-2 fusion protein (rhBMP7-2) and determined its molecular weight and biological activity. METHODS The fusion gene for rhBMP-2 and rhBMP-7 was inserted into the pET-ELP expression vector. Correct DNA sequence was confirmed, the rhBMP7-2-ELP was transformed into Escherichia coli strain BL21 (DE3), and the rhBMP7-2 was produced in the recombinant E. coli. Recombinant BMP7-2 purify was identified using Sodium Dodecyl Sulfate Polyacrylamide Gel Electrophoresis (SDS-PAGE). The cell proliferation and biological activity of rhBMP7-2 was measured by Cell Counting Kit-8 and Alkaline Phosphatase assay using C2C12 cells, respectively. RESULTS The result of digestion of NdeI, BamHI and XhoI enzymes showed that the rhBMP7-2-ELP was correctly constructed. The recombinat BMP7-2 was successfully expressed in soluble form; the purifed rhBMP7-2 showed biological activity and significantly promoted cell proliferation and differentiation in a dose-dependent manner. CONCLUSION The rhBMP7-2 fusion protein with osteogenic activity was prepared through a low-cost and time-efficient method. Our preparation method presents potential to be applied to the large-scale production of rhBMP7-2 and is expected to play a significant role in clinical treatment.
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Affiliation(s)
- Shuai Wang
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Changle Road 68, Nanjing, 210006, P.R. China,School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Tongjiaxiang 24, Nanjing, 210009, P.R. China
| | - Min Lai
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Changle Road 68, Nanjing, 210006, P.R. China,School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Tongjiaxiang 24, Nanjing, 210009, P.R. China
| | - Yaqian Cui
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Changle Road 68, Nanjing, 210006, P.R. China,School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Tongjiaxiang 24, Nanjing, 210009, P.R. China
| | - Hongwei Fan
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Changle Road 68, Nanjing, 210006, P.R. China,School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Tongjiaxiang 24, Nanjing, 210009, P.R. China
| | - Kaizong Huang
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Changle Road 68, Nanjing, 210006, P.R. China
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Ling Y, Fan H, Wang K, Lu Z, Wang L, Hou C, Zhang Q, Li Y, Li K, Wang H. Electrochemical Actuators with Multicolor Changes and Multidirectional Actuation. Small 2022; 18:e2107778. [PMID: 35257482 DOI: 10.1002/smll.202107778] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 12/15/2021] [Revised: 01/27/2022] [Indexed: 06/14/2023]
Abstract
Electrochemical (EC) actuators have garnered significant attention in recent years, yet there are still some critical challenges to limit their application range, such as responsive time, multifunctionality, and actuating direction. Herein, an EC actuator with a back-to-back structure is fabricated by stacking two membranes with bilayer V2 O5 nanowires/single-walled carbon nanotubes (V2 O5 NWs/SWCNTs) networks, and shows a synchronous high actuation amplitude (about ±9.7 mm, ±28.4°) and multiple color changes. In this back-to-back structure, the inactive SWCNTs layer is used as a conductive current collector, and the bilayer network is attached to a porous polymer membrane. The dual-responsive processes of V2 O5 nanowires (V2 O5 NWs) actuation films and actuators are also deeply investigated through in situ EC X-ray diffraction and Raman spectroscopy. The results show that the EC actuation of the V2 O5 NWs/SWCNTs film is highly related to the redox behavior of the pseudocapacitive V2 O5 NWs layer. At last, both V2 O5 NWs and W18 O49 nanowires (W18 O49 NWs)-based EC actuators are constructed to demonstrate the multicolor changes and multidirectional actuation induced by the opposite lattice changes of V2 O5 NWs and W18 O49 NWs during ionic de-/intercalation, guiding the design of multifunctional EC actuators in the future.
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Affiliation(s)
- Yong Ling
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Hongwei Fan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Kun Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Ziqiu Lu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Lichao Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Chengyi Hou
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Qinghong Zhang
- Engineering Research Center of Advanced Glass Manufacturing Technology Ministry of Education, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Yaogang Li
- Engineering Research Center of Advanced Glass Manufacturing Technology Ministry of Education, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Kerui Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Hongzhi Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
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Fan H, Fan H, Lu C, Yin Q, Bao X. U-shape core-offset fiber sensor with submicrostrain resolution over a 35 millistrain range. Appl Opt 2022; 61:1150-1155. [PMID: 35201166 DOI: 10.1364/ao.442556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 01/06/2022] [Indexed: 06/14/2023]
Abstract
Large strain with submicro resolution is essential for steel structural monitoring; however, the fiber base sensors are limited by the glass extension to be less than 1%. Here, we propose a U-shape core-offset fiber sensor including four fiber segments to realize a large strain sensor. Four fiber segments with slight length differences in between are core-offset fused together to achieve U-shape spring-like microstructure fiber for large transverse bending radius. The reflected high-order modes at three silica/air interfaces interfere to give a broad spectrum due to unequal segment length, which enables continuous strain detection over 35 mɛ. The air and glass hybrid structure of the device enables the large bending, and hence compression and tension measurement can be achieved simultaneously. The strain sensitivity is up to 20.75 pm/µɛ with the strain accuracy of 0.5 µɛ. This novel, to the best of our knowledge, core-offset fiber has high strain sensitivity and large strain range for compression and tension strain measurement. Furthermore, the proposed strain sensor can be fabricated easily for practical applications where large strain with high strain accuracy is needed.
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Fan H, Wu Z, Zhu D, Gu J, Xu M, Zhang M, Duan H, Li Y, Chen T. Proanthocyanidins Inhibit the Transmission of Spinal Pain Information Through a Presynaptic Mechanism in a Mouse Inflammatory Pain Model. Front Neurosci 2022; 15:804722. [PMID: 35185451 PMCID: PMC8850919 DOI: 10.3389/fnins.2021.804722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 12/31/2021] [Indexed: 11/13/2022] Open
Abstract
Inflammatory pain is one of the most common symptoms of clinical pain that seriously affects patient quality of life, but it currently has limited therapeutic options. Proanthocyanidins, a group of polyphenols enriched in plants and foods, have been reported to exert anti-inflammatory pain-alleviating effects. However, the mechanism by which proanthocyanidins relieve inflammatory pain in the central nervous system is unclear. In the present study, we observed that intrathecal injection of proanthocyanidins inhibited mechanical and thermal pain sensitivity in mice with inflammatory pain induced by Complete Freund’s Adjuvant (CFA) injection. Electrophysiological results further showed that proanthocyanidins inhibited the frequency of spontaneous excitatory postsynaptic currents without affecting the spontaneous inhibitory postsynaptic currents or the intrinsic properties of parabrachial nucleus-projecting neurons in the spinal cord. The effect of proanthocyanidins may be mediated by their inhibition of phosphorylated activation of the PI3K/Akt/mTOR pathway molecules in dorsal root ganglia neurons. In summary, intrathecal injection of procyanidin induces an obvious anti-inflammatory pain effect in mice by inhibiting peripheral excitatory inputs to spinal neurons that send nociceptive information to supraspinal areas.
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Affiliation(s)
- Hongwei Fan
- Department of Human Anatomy, Xuzhou Medical University, Xuzhou, China
- Department of Anatomy, Histology and Embryology, K. K. Leung Brain Research Centre, Fourth Military Medical University, Xi’an, China
| | - Zhenyu Wu
- Department of Anatomy, Histology and Embryology, K. K. Leung Brain Research Centre, Fourth Military Medical University, Xi’an, China
- Epilepsy Center of Xijing Hospital, Fourth Military Medical University, Xi’an, China
| | - DaYu Zhu
- Department of Human Anatomy, Xuzhou Medical University, Xuzhou, China
- Department of Anatomy, Histology and Embryology, K. K. Leung Brain Research Centre, Fourth Military Medical University, Xi’an, China
| | - Junxiang Gu
- Department of Anatomy, Histology and Embryology, K. K. Leung Brain Research Centre, Fourth Military Medical University, Xi’an, China
- Department of Neurosurgery, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Mang Xu
- Department of Anatomy, Histology and Embryology, K. K. Leung Brain Research Centre, Fourth Military Medical University, Xi’an, China
- Department of Anatomy, Basic Medical College, Dali University, Dali, China
| | - Mingzhe Zhang
- Department of Anatomy, Histology and Embryology, K. K. Leung Brain Research Centre, Fourth Military Medical University, Xi’an, China
| | - Haokai Duan
- Department of Anatomy, Histology and Embryology, K. K. Leung Brain Research Centre, Fourth Military Medical University, Xi’an, China
| | - Yunqing Li
- Department of Human Anatomy, Xuzhou Medical University, Xuzhou, China
- Department of Anatomy, Histology and Embryology, K. K. Leung Brain Research Centre, Fourth Military Medical University, Xi’an, China
| | - Tao Chen
- Department of Human Anatomy, Xuzhou Medical University, Xuzhou, China
- Department of Anatomy, Histology and Embryology, K. K. Leung Brain Research Centre, Fourth Military Medical University, Xi’an, China
- *Correspondence: Tao Chen,
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Feng L, Li S, Li C, Meng H, Lu Y, Fan H. Rational design of efficient deep eutectic solvents for HCl absorption through their competitive H-bonding interactions. Phys Chem Chem Phys 2022; 24:26466-26476. [DOI: 10.1039/d2cp03418b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The high reversible solubility of HCl in BmimCl-TAA depends on its competitive hydrogen bond interactions and dynamic structural changes.
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Affiliation(s)
- Lin Feng
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Shuyi Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Chunxi Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
- Beijing Key Laboratory of Energy Environmental Catalysis, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Hong Meng
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, Xinjiang University, Urumqi, 830046, P. R. China
| | - Yingzhou Lu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Hongwei Fan
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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Qiu K, Zhang C, Yan M, Zhao S, Fan H, An S, Qiu X, Jia G. Structural transformation and electrochemical properties of a nanosized flower-like R-MnO 2 cathode in a sodium battery. Phys Chem Chem Phys 2021; 24:551-559. [PMID: 34904986 DOI: 10.1039/d1cp04047b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
High-energy density and low-cost sodium-ion batteries are being sought to meet increasing energy demand. Here, R-MnO2 is chosen as a cathode material of sodium-ion batteries owing to its low cost and high energy density. The structural transformation from the tunnel R-MnO2 to the layered NaMnO2 and electrochemical properties during the charge/discharge are investigated at the atomic level by combining XRD and related electrochemical experiments. Na≤0.04MnO2 has a tunnel R-MnO2 phase structure, Na≥0.42MnO2 has a layered NaMnO2 phase structure, and Na0.04-0.42MnO2 is their mixed phase. Mn3+ 3d4[t2gβ3dz2(1)3dx2-y2(0)] in NaMnO2 loses one 3dz2 electron and the redox couple Mn3+/Mn4+ delivers 206 mA h g-1 during the initial charge. The case that the Fermi energy level difference between R-MnO2 and NaMnO2 is lower than that between the layered Na(12-x)/12MnO2 and NaMnO2 makes the potential plateau of R-MnO2 turning into NaMnO2 lower than that of the layered Na(12-x)/12MnO2 to NaMnO2. This can be confirmed by our experiment from the 1st-2nd voltage capacity profile of R-MnO2 in EC/PC (ethylene carbonate/propylene carbonate) electrolyte. The study would give a new view of the production of sustainable sodium battery cathode materials.
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Affiliation(s)
- Kai Qiu
- School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia, 014010, China.
| | - Chao Zhang
- School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia, 014010, China. .,Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, 100084, China. .,School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, 100083, China
| | - Mingxia Yan
- School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia, 014010, China.
| | - Shouwang Zhao
- School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia, 014010, China.
| | - Hongwei Fan
- School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia, 014010, China.
| | - Shengli An
- School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia, 014010, China.
| | - Xinping Qiu
- Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, 100084, China.
| | - Guixiao Jia
- School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia, 014010, China.
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Zhang X, Zhang C, Wang L, Chen L, Chen X, Xu D, Fan H, Zhu F. A Method for Parameter Identification of Composite Beam Piezoelectric Energy Harvester. Sensors (Basel) 2021; 21:s21217213. [PMID: 34770520 PMCID: PMC8588174 DOI: 10.3390/s21217213] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 10/26/2021] [Accepted: 10/28/2021] [Indexed: 11/16/2022]
Abstract
This paper proposes a parameter identification method for the multiparameter identification study of the linear-arch composite beam piezoelectric energy harvester. According to the voltage response characteristics of the system under short-circuit conditions, the mechanical equation is solved by transient excitation, combined with the backbone curve theory and logarithmic attenuation method, to obtain the system's linear damping, linear stiffness, and nonlinear stiffness. According to the voltage response characteristics of the system under open-circuit conditions, combined with the electrical equations, the system electromechanical coupling coefficient and equivalent capacitance coefficient are obtained; numerical simulation results show that the identification parameters have good accuracy. Finally, an experimental platform was built for verification, and the results show that the method has high accuracy and practicability.
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Affiliation(s)
- Xuhui Zhang
- College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China; (C.Z.); (L.W.); (L.C.); (X.C.); (D.X.); (H.F.); (F.Z.)
- Shaanxi Key Laboratory of Mine Electromechanical Equipment Intelligent Monitoring, Xi’an 710054, China
- Correspondence: ; Tel.: +86-133-6397-5328
| | - Chao Zhang
- College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China; (C.Z.); (L.W.); (L.C.); (X.C.); (D.X.); (H.F.); (F.Z.)
| | - Lin Wang
- College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China; (C.Z.); (L.W.); (L.C.); (X.C.); (D.X.); (H.F.); (F.Z.)
| | - Luyang Chen
- College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China; (C.Z.); (L.W.); (L.C.); (X.C.); (D.X.); (H.F.); (F.Z.)
| | - Xiaoyu Chen
- College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China; (C.Z.); (L.W.); (L.C.); (X.C.); (D.X.); (H.F.); (F.Z.)
| | - Dongmei Xu
- College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China; (C.Z.); (L.W.); (L.C.); (X.C.); (D.X.); (H.F.); (F.Z.)
- Shaanxi Key Laboratory of Mine Electromechanical Equipment Intelligent Monitoring, Xi’an 710054, China
| | - Hongwei Fan
- College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China; (C.Z.); (L.W.); (L.C.); (X.C.); (D.X.); (H.F.); (F.Z.)
- Shaanxi Key Laboratory of Mine Electromechanical Equipment Intelligent Monitoring, Xi’an 710054, China
| | - Fulin Zhu
- College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China; (C.Z.); (L.W.); (L.C.); (X.C.); (D.X.); (H.F.); (F.Z.)
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Zheng H, Xia Y, Qu S, Fan L, Zhang J, Ma Z, Chen Y, Fan H. Pharmacokinetic Study of Frovatriptan Succinate Tablet After Single and Multiple Oral Doses in Chinese Healthy Subjects. Drug Des Devel Ther 2021; 15:2961-2968. [PMID: 34262261 PMCID: PMC8275034 DOI: 10.2147/dddt.s308958] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 06/04/2021] [Indexed: 11/25/2022]
Abstract
Purpose The present report describes findings from a Phase I clinical study that evaluated the single- and multiple-dose pharmacokinetics of frovatriptan succinate tablet in Chinese healthy subjects. Methods A total of 24 healthy subjects were enrolled. In single-dose study, 2.5, 5, and 10 mg oral doses of frovatriptan succinate tablet were administrated. A 2.5 mg frovatriptan succinate tablet was administrated 12 times in 7 days in the multiple-dose study. Blood samples were collected at scheduled time points. Results The results in single-dose study indicated that the blood levels were proportional to the administered dose, with the mean Cmax and AUClast ranging from approximately 6.27 ng/mL–17.35 ng/mL and 92.52 h⋅ng/mL – 287.40 h⋅ng/mL over the dose range. In the multiple-dose study, moderate drug accumulation was noted, which was attributable to forvatriptan’s long t1/2 of about 26.47 to 30.63 h. Gender differences were noticed in both single- and multiple-dose study; exposure PK parameters were consistently higher in female than in male. Conclusion These pharmacokinetic evaluations in healthy Chinese subjects found that frovatriptan succinate tablet has an acceptable pharmacokinetic profile in Chinese subjects.
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Affiliation(s)
- Hongquan Zheng
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China.,School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, People's Republic of China
| | - Yan Xia
- Jiangsu Leeway Biological Technology Co., Ltd, Nanjing, Jiangsu, People's Republic of China
| | - Shengjun Qu
- CP Pharmaceutical Qingdao Co., Ltd, Qingdao, Shandong, People's Republic of China
| | - Lin Fan
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, People's Republic of China
| | - Jingjing Zhang
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Zhixiang Ma
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Yangsheng Chen
- CP Pharmaceutical Qingdao Co., Ltd, Qingdao, Shandong, People's Republic of China
| | - Hongwei Fan
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China.,School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, People's Republic of China
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40
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Liu H, Li TS, Yang XL, Fan HW, Zhou BT, Ge Y. [Diagnosis and treatment of a patient with fever, rash, and lymphadenopathy]. Zhonghua Nei Ke Za Zhi 2021; 60:669-670. [PMID: 34619846 DOI: 10.3760/cma.j.cn112138-20200828-00778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- H Liu
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730,China
| | - T S Li
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730,China
| | - X L Yang
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730,China
| | - H W Fan
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730,China
| | - B T Zhou
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730,China
| | - Y Ge
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730,China
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41
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Qiu R, Zhong Y, Li Q, Li Y, Fan H. Metabolic Remodeling in Glioma Immune Microenvironment: Intercellular Interactions Distinct From Peripheral Tumors. Front Cell Dev Biol 2021; 9:693215. [PMID: 34211978 PMCID: PMC8239469 DOI: 10.3389/fcell.2021.693215] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Accepted: 05/19/2021] [Indexed: 01/29/2023] Open
Abstract
During metabolic reprogramming, glioma cells and their initiating cells efficiently utilized carbohydrates, lipids and amino acids in the hypoxic lesions, which not only ensured sufficient energy for rapid growth and improved the migration to normal brain tissues, but also altered the role of immune cells in tumor microenvironment. Glioma cells secreted interferential metabolites or depriving nutrients to injure the tumor recognition, phagocytosis and lysis of glioma-associated microglia/macrophages (GAMs), cytotoxic T lymphocytes, natural killer cells and dendritic cells, promoted the expansion and infiltration of immunosuppressive regulatory T cells and myeloid-derived suppressor cells, and conferred immune silencing phenotypes on GAMs and dendritic cells. The overexpressed metabolic enzymes also increased the secretion of chemokines to attract neutrophils, regulatory T cells, GAMs, and dendritic cells, while weakening the recruitment of cytotoxic T lymphocytes and natural killer cells, which activated anti-inflammatory and tolerant mechanisms and hindered anti-tumor responses. Therefore, brain-targeted metabolic therapy may improve glioma immunity. This review will clarify the metabolic properties of glioma cells and their interactions with tumor microenvironment immunity, and discuss the application strategies of metabolic therapy in glioma immune silence and escape.
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Affiliation(s)
- Runze Qiu
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Yue Zhong
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Qingquan Li
- Department of Neurosurgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yingbin Li
- Department of Neurosurgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Hongwei Fan
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
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Abstract
Macrophage-dependent inflammation plays a critical role in atherogenesis. Inducible nitric oxide synthase (iNOS) is one of key pro-inflammatory mediators produced in macrophages and its levels can be upregulated by lipopolysaccharide (LPS). The epigenetic mechanism whereby LPS induces iNOS transcription is incompletely understood. We show here myocardin-related transcription factor A (MRTF-A) potentiated iNOS promoter activity in macrophages. There was a decrease in LPS-induced iNOS expression in several cell models due to the lack of MRTF-A. LPS treatment promoted nuclear accumulation of MRTF-A and its interaction with NF-κB/p65 on the iNOS promoter. The absence of MRTF-A prevented the accumulation of active histone marks on the iNOS promoter in response to LPS treatment. Mechanistically, MRTF-A recruited ASH2, a key component of the mammalian histone H3K4 methyltransferase complex, to the iNOS promoter. Silencing of ASH2 attenuated iNOS expression following LPS treatment. Together, our data highlight a role for MRTF-A-dependent recruitment of H3K4 methyltransferase in iNOS induction and as such provide a novel target in the intervention of atherosclerosis.
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Affiliation(s)
- Lin Lin
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, Nanjing, 210023, China
| | - Qiumei Zhang
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, Nanjing, 210023, China
| | - Hongwei Fan
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, Nanjing, 210023, China
| | - Hongwei Zhao
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, Nanjing, 210023, China
| | - Yuyu Yang
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, Nanjing, 210023, China.
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Li L, Wang K, Fan H, Zhu X, Mu J, Yu H, Zhang Q, Li Y, Hou C, Wang H. Scalable fluid-spinning nanowire-based inorganic semiconductor yarns for electrochromic actuators. Mater Horiz 2021; 8:1711-1721. [PMID: 34846501 DOI: 10.1039/d1mh00135c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Semiconductor yarns with unique functional characteristics have great potential applications in next-generation electronic devices. However, scalable inorganic semiconductor yarns with excellent mechanical and electrical properties, and environmental stability have not been discovered. In this study, we explored a unique fluid-spinning strategy to obtain a series of scalable inorganic semiconductor yarns including neat and hybrid semiconductor yarns. Different from the conventional yarn spinning strategy through a mechanical motor, we utilized the fluid force from the triple-phase interface to assemble and twist inorganic nanofiber building blocks simultaneously, and eventually obtained highly oriented inorganic nanowire-based semiconductor yarns. The obtained semiconductor yarns showed an excellent flexibility (curvature exceeding 2 cm-1) and mechanical strength (tensile strength of 443 MPa) because of their highly oriented hierarchical nanostructures, which make them coiling able with highly twisted insertion. Additionally, coiled yarns were obtained by combining the host core material and functional guest sheath in a fluid-spinning process, which are flexible in deep cryogenic temperature owing to the pure inorganic building blocks (26.28% tensile strain in liquid nitrogen). In particular, inorganic yarn-based electrochromic actuators can obtain as high as 15.3% tensile stroke and 0.82 J g-1 work capacity by electrochemical charge injection-associated multicolor switching.
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Affiliation(s)
- Linpeng Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science & Engineering, Donghua University, 2999 Renmin Road, Shanghai 201620, China.
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Liu H, Fan H, Huang X, Jiao Y. The clinical characteristics and outcomes of patients with fever of unknown origin caused by parasitic infection. Medicine (Baltimore) 2021; 100:e25538. [PMID: 33879698 PMCID: PMC8078278 DOI: 10.1097/md.0000000000025538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 03/26/2021] [Indexed: 11/25/2022] Open
Abstract
There are over 200 causes of fever of unknown origin (FUO), and although parasitic infection is an increasingly uncommon cause, a definitive diagnosis remains important to ensure rapid treatment and to prevent adverse sequelae through delay. Here, we studied the clinical features and outcomes of patients admitted with FUO and diagnosed with parasitic infection to improve our understanding of the features of parasitic FUO.Medical records of patients admitted to Peking Union Medical College Hospital between 2013 and 2019 with FUO and diagnosed with parasitic infection were reviewed. The clinical features and outcomes of patients for whom follow-up data were available were summarized.Six patients were admitted with FUO and diagnosed with parasitic infections (6/1013; 0.59%). Patients were more commonly middle-aged men and had a relatively long disease course. Most suffered from hyperpyrexia and other non-specific symptoms. Routine examinations were non-specific, and some patients had positive tumor markers, antinuclear antibodies, or positron emission tomography/computed tomography results. Diagnoses were confirmed by bone marrow smears, serum antibody testing, or feces examination. All 6 cases received anthelmintic treatments and recovered well.Parasitic infections must be screened for and actively excluded in FUO patients so that targeted therapy can be rapidly administered to ensure optimal outcomes.
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Affiliation(s)
| | | | - Xiaoming Huang
- Department of General Internal Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yang Jiao
- Department of General Internal Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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Wu S, Hua X, Ma B, Fan H, Miao R, Ulbricht M, Hu C, Qu J. Three-Dimensional Analysis of the Natural-Organic-Matter Distribution in the Cake Layer to Precisely Reveal Ultrafiltration Fouling Mechanisms. Environ Sci Technol 2021; 55:5442-5452. [PMID: 33710872 DOI: 10.1021/acs.est.1c00435] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Cake layer formation is the dominant ultrafiltration membrane fouling mechanism after long-term operation. However, precisely analyzing the cake-layer structure still remains a challenge due to its thinness (micro/nano scale). Herein, based on the excellent depth-resolution and foulant-discrimination of time-of-flight secondary ion mass spectrometry, a three-dimensional analysis of the cake-layer structure caused by natural organic matter was achieved at lower nanoscale for the first time. When humic substances or polysaccharides coexisted with proteins separately, a homogeneous cake layer was formed due to their interactions. Consequently, membrane fouling resistances induced by proteins were reduced by humic substances or polysaccharides, leading to a high flux. However, when humic substances and polysaccharides coexisted, a sandwich-like cake layer was formed owing to the asynchronous deposition based on molecular dynamics simulations. As a result, membrane fouling resistances were superimposed, and the flux was low. Furthermore, it is interesting that cake-layer structures were relatively stable under common UF operating conditions (i.e., concentration and stirring). These findings better elucidate membrane fouling mechanisms of different natural-organic-matter mixtures. Moreover, it is demonstrated that membrane fouling seems lower with a more homogeneous cake layer, and humic substances or polysaccharides play a critical role. Therefore, regulating the cake-layer structure by feed pretreatment scientifically based on proven mechanisms should be an efficient membrane-fouling-control strategy.
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Affiliation(s)
- Siqi Wu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xin Hua
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Baiwen Ma
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Lehrstuhl fur Technische Chemie II, Universitat Duisburg-Essen, Essen 45117, Germany
| | - Hongwei Fan
- Institute of Physical Chemistry and Electrochemistry, Leibniz Universitat Hannover, Hannover 30167, Germany
| | - Rui Miao
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Mathias Ulbricht
- Lehrstuhl fur Technische Chemie II, Universitat Duisburg-Essen, Essen 45117, Germany
| | - Chengzhi Hu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiuhui Qu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Wang Y, Wang J, Du F, Fan H, Wang X, Yang J. A Novel Polymer-Phenolic Prepolymer Based Blocking System for High- Temperature and High-Salinity Oil Reservoirs. TENSIDE SURFACT DET 2021. [DOI: 10.3139/113.110706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Focusing on the leakage problem in high temperature and high salinity oil fields (reservoir temperature 1208C-1308C, formation water salinity 220000 mg/L), a gel-blocking system is proposed using a polymer and a phenolic prepolymer. Specifically, it addresses the short storage time issue of synthetic phenolic prepolymer by introducing p-hydroxybenzoic acid to modify and effectively extend its lifespan. The additional introduction of c-aminopropyl triethoxysilane (KH550) improves the wall-adhesion of this system. The proposed gel-blocking system shows good on-site application results in a western China oil field.
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Affiliation(s)
- Yang Wang
- Xi’an Shiyou University, No.18, Dianzi 2 Road, Yanta district, Xi’an , China
- Shanxi Key Laboratory of Advanced Stimulation Technology for Oil & Gas Reservoirs, Xi’an , China
| | - Jian Wang
- Xi’an Shiyou University, No.18, Dianzi 2 Road, Yanta district, Xi’an , China
- Shanxi Key Laboratory of Advanced Stimulation Technology for Oil & Gas Reservoirs, Xi’an , China
| | - Fenfen Du
- No.1 Oil Production Plant of North China Oilfield Company Sinopec, Xianyang , China
| | - Hongwei Fan
- Xi’an Shiyou University, No.18, Dianzi 2 Road, Yanta district, Xi’an , China
- Shanxi Key Laboratory of Advanced Stimulation Technology for Oil & Gas Reservoirs, Xi’an , China
| | - Xiaoxiang Wang
- Xi’an Shiyou University, No.18, Dianzi 2 Road, Yanta district, Xi’an , China
- Shanxi Key Laboratory of Advanced Stimulation Technology for Oil & Gas Reservoirs, Xi’an , China
| | - Jiang Yang
- Xi’an Shiyou University, No.18, Dianzi 2 Road, Yanta district, Xi’an , China
- Shanxi Key Laboratory of Advanced Stimulation Technology for Oil & Gas Reservoirs, Xi’an , China
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Fan H, Peng M, Strauss I, Mundstock A, Meng H, Caro J. MOF-in-COF molecular sieving membrane for selective hydrogen separation. Nat Commun 2021; 12:38. [PMID: 33397939 PMCID: PMC7782778 DOI: 10.1038/s41467-020-20298-7] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 11/13/2020] [Indexed: 01/22/2023] Open
Abstract
Covalent organic frameworks (COFs) are promising materials for advanced molecular-separation membranes, but their wide nanometer-sized pores prevent selective gas separation through molecular sieving. Herein, we propose a MOF-in-COF concept for the confined growth of metal-organic framework (MOFs) inside a supported COF layer to prepare MOF-in-COF membranes. These membranes feature a unique MOF-in-COF micro/nanopore network, presumably due to the formation of MOFs as a pearl string-like chain of unit cells in the 1D channel of 2D COFs. The MOF-in-COF membranes exhibit an excellent hydrogen permeance (>3000 GPU) together with a significant enhancement of separation selectivity of hydrogen over other gases. The superior separation performance for H2/CO2 and H2/CH4 surpasses the Robeson upper bounds, benefiting from the synergy combining precise size sieving and fast molecular transport through the MOF-in-COF channels. The synthesis of different combinations of MOFs and COFs in robust MOF-in-COF membranes demonstrates the versatility of our design strategy.
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Affiliation(s)
- Hongwei Fan
- Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstraße 3A, 30167, Hannover, Germany
| | - Manhua Peng
- Institut für Festkörperphysik, Leibniz Universität Hannover, Appelstrasse 2, 30167, Hannover, Germany
| | - Ina Strauss
- Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstraße 3A, 30167, Hannover, Germany
| | - Alexander Mundstock
- Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstraße 3A, 30167, Hannover, Germany
| | - Hong Meng
- Beijing Key Laboratory of Membrane Science and Technology, Beijing University of Chemical Technology, 100029, Beijing, PR China.
| | - Jürgen Caro
- Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstraße 3A, 30167, Hannover, Germany.
- School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, PR China.
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Zhang D, Jiang Y, Lu L, Lu Z, Xia W, Xing X, Fan H. Cushing's Syndrome With Nocardiosis: A Case Report and a Systematic Review of the Literature. Front Endocrinol (Lausanne) 2021; 12:640998. [PMID: 33854481 PMCID: PMC8040973 DOI: 10.3389/fendo.2021.640998] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 02/08/2021] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE To analyze and summarize the clinical characteristics, treatments, and prognosis of Cushing's syndrome (CS) with nocardiosis. METHODS A patient in our hospital and additional 17 patients of CS with nocardiosis in the English literature were included in this study. Clinical characteristics, laboratory data, imaging studies, treatments, and prognosis were evaluated. RESULTS A 41-year-old man with CS was diagnosed and treated in our hospital. He had co-infections of nocardiosis and aspergillosis. Together with 17 patients of CS with nocardiosis in the English literature, 2 patients (11.1%) were diagnosed as Cushing's disease (CD) while 16 (88.9%) were diagnosed or suspected as ectopic ACTH syndrome (EAS). The average 24hrUFC was 7,587.1 ± 2,772.0 μg/d. The average serum total cortisol and ACTH (8 AM) was 80.2 ± 18.7 μg/dl and 441.8 ± 131.8 pg/ml, respectively. The most common pulmonary radiologic findings in CT scan were cavitary lesions (10/18) and nodules (8/18). Co-infections were found in 33.3% (6/18) patients. The CS patients with co-infections had higher levels of ACTH (671.5 ± 398.2 vs 245.5 ± 217.1 pg/ml, P = 0.047), and 38.9% (7/18) patients survived through the antibiotic therapy and the treatment of CS. Patients with lower level of ACTH (survival vs mortality: 213.1 ± 159.0 vs 554.7 ± 401.0 pg/ml, P = 0.04), no co-infection, underwent CS surgery, and received antibiotic therapy for more than 6 months, had more possibilities to survive. CONCLUSIONS Nocardia infection should be cautioned when a patient of CS presented with abnormal chest radiographs. The mortality risk factors for CS with nocardiosis are high level of ACTH and co-infections. We should endeavor to make early etiological diagnosis, apply long-term sensitive antibiotics and aggressive treatments of CS.
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Affiliation(s)
- Da Zhang
- Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
- Department of Endocrinology, Air Force Medical Center, Beijing, China
| | - Yan Jiang
- Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
- *Correspondence: Yan Jiang,
| | - Lin Lu
- Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
| | - Zhaolin Lu
- Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
| | - Weibo Xia
- Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
| | - Xiaoping Xing
- Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
| | - Hongwei Fan
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
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Abstract
Abstract
We have studied the effect of NaCl and CaCl2 on phase behavior of foaming aqueous dispersions containing mixtures of silica nanoparticles (Ludox CL) and sulfobetaine (LHSB). At the evaluated ratio, the phase behavior results show that at a low CaCl2 concentration, sedimentation occurs, whereas a stable aqueous dispersion could be achieved when the CaCl2 concentration reaches to 20%. The adsorption experiments show that high concentrations of both NaCl and CaCl2 reduce the adsorption of LHSB to CL. In the CaCl2 dispersion the adsorption decreases significantly and only a few LHSB molecules can be adsorbed on the CL surface. Therefore, without the lower hydrophobicity of LHSB adsorption less CL could adsorbed at the air/water interface. The results on gas permeability show that aqueous dispersions containing mixtures of CL and LHSB show no obvious difference to aqueous systems containing only LHSB. The surface dilatation module of the LHSB and CL system in CaCl2 solution also shows a similar variation to the system with LHSB alone, which is significantly different from the system with 20% NaCl. Finally, foam flow tests in a porous medium show that compared to a 20% CaCl2 dispersion with the LHSB and CL system in 20% NaCl, a finer foam and a higher pressure difference could be achieved.
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Affiliation(s)
- Yang Wang
- Xi'an Shiyou University , No. 18, Eastern Section of Dianzi 2 Road, Xi'an , China
| | - Jian Wang
- Xi'an Shiyou University , No. 18, Eastern Section of Dianzi 2 Road, Xi'an , China
| | - Hongwei Fan
- Xi'an Shiyou University , No. 18, Eastern Section of Dianzi 2 Road, Xi'an , China
| | - Fenfen Du
- No. 1 Oil Production Plant of Sinopec North China Petroleum Bureau , cross roads of Tiangong No. 1 Road and Zhoukang Road in Qinhan New towns of Xi Xian New Area, Xi'an , China
| | - Wenchao Zhou
- CNOOC EnerTech-Drilling & Production Co. , No. 688 Bohai Petroleum Road, Tanggu District, Tianjin , China
| | - Jiang Yang
- Xi'an Shiyou University , No. 18, Eastern Section of Dianzi 2 Road, Xi'an , China
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50
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Li YQ, Wang ZQ, Zhang L, Fan HW. [A case report of multiple splenic abscesses caused by esophageal aortic fistula]. Zhonghua Nei Ke Za Zhi 2020; 59:718-720. [PMID: 32838505 DOI: 10.3760/cma.j.cn112138-20190906-00616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Y Q Li
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China(Li Yaqing is working on Department of Infectious Diseases, Hebei General Hospital, Shijiazhuang 050000, China)
| | - Z Q Wang
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - L Zhang
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H W Fan
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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