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Mo C, Zhou L, Zheng J, Liang B, Huang H, Huang G, Liang J, Li S, Junaid M, Wang J, Huang K. Efficient Photodegradation of Antibiotics by g-C 3N 4 and 3D flower-like Bi 2WO 6 Perovskite Structure: Insights into the Preparation, Evaluation, and Potential Mechanism. Chemosphere 2024:142286. [PMID: 38729439 DOI: 10.1016/j.chemosphere.2024.142286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 04/28/2024] [Accepted: 05/06/2024] [Indexed: 05/12/2024]
Abstract
Antibiotics are emerging organic pollutants that have attracted huge attention owing to their abundant use and associated ecological threats. The aim of this study is to develop and use photocatalysts to degrade antibiotics, including tetracycline (TC), ciprofloxacin (CIP), and amoxicillin (AMOX). Therefore, a novel Z-scheme heterojunction composite of g-C3N4 (gCN) and 3D flower-like Bi2WO6 (BW) perovskite structure was designed and developed, namely Bi2WO6/g-C3N4 (BW/gCN), which can degrade low-concentration of antibiotics in aquatic environments under visible light. According to the Density Functional Theory (DFT) calculation and the characterization results of X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FITR), Scanning electron microscopy - energy spectroscopy (SEM-EDS) and X-ray photoelectron spectroscopy (XPS), this heterojunction was formed in the recombination process. Furthermore, the results of 15wt%-BW/gCN photocatalytic experiments showed that the photodegradation rates (Rp) of TC, CIP, and AMOX were 92.4%, 90.1% and 82.3%, respectively, with good stability in three-cycle photocatalytic experiments. Finally, the quenching experiment of free radicals showed that the holes (h+) and superoxide radicals (·O2-) play a more important role than the hydroxyl radicals (·OH) in photocatalysis. In addition, a possible antibiotic degradation pathway was hypothesized on the basis of High performance liquid chromatography (HPLC) analysis. In general, we have developed an effective catalyst for photocatalytic degradation of antibiotic pollutants and analyzed its photocatalytic degradation mechanism, which provides new ideas for follow-up research and expands its application in the field of antibiotic composite pollution prevention and control.
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Affiliation(s)
- Chao Mo
- School of Chemistry and Chemical Engineering, Guangxi University, 530004 Nanning, P.R. China; National Key Laboratory of Non-food Biomass Energy Technology, Guangxi Key Laboratory of Bio-refinery, Institute of Eco-Environmental Research, Guangxi Academy of Sciences, 98 Daling Road, 530007 Nanning, P.R. China
| | - Liya Zhou
- School of Chemistry and Chemical Engineering, Guangxi University, 530004 Nanning, P.R. China
| | - Jiahui Zheng
- National Key Laboratory of Non-food Biomass Energy Technology, Guangxi Key Laboratory of Bio-refinery, Institute of Eco-Environmental Research, Guangxi Academy of Sciences, 98 Daling Road, 530007 Nanning, P.R. China
| | - Bin Liang
- National Key Laboratory of Non-food Biomass Energy Technology, Guangxi Key Laboratory of Bio-refinery, Institute of Eco-Environmental Research, Guangxi Academy of Sciences, 98 Daling Road, 530007 Nanning, P.R. China
| | - Hualin Huang
- National Key Laboratory of Non-food Biomass Energy Technology, Guangxi Key Laboratory of Bio-refinery, Institute of Eco-Environmental Research, Guangxi Academy of Sciences, 98 Daling Road, 530007 Nanning, P.R. China
| | - Gang Huang
- National Key Laboratory of Non-food Biomass Energy Technology, Guangxi Key Laboratory of Bio-refinery, Institute of Eco-Environmental Research, Guangxi Academy of Sciences, 98 Daling Road, 530007 Nanning, P.R. China
| | - Jing Liang
- National Key Laboratory of Non-food Biomass Energy Technology, Guangxi Key Laboratory of Bio-refinery, Institute of Eco-Environmental Research, Guangxi Academy of Sciences, 98 Daling Road, 530007 Nanning, P.R. China.
| | - Shiheng Li
- National Key Laboratory of Non-food Biomass Energy Technology, Guangxi Key Laboratory of Bio-refinery, Institute of Eco-Environmental Research, Guangxi Academy of Sciences, 98 Daling Road, 530007 Nanning, P.R. China
| | - Muhammad Junaid
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, P.R. China
| | - Jun Wang
- National Key Laboratory of Non-food Biomass Energy Technology, Guangxi Key Laboratory of Bio-refinery, Institute of Eco-Environmental Research, Guangxi Academy of Sciences, 98 Daling Road, 530007 Nanning, P.R. China; College of Marine Sciences, South China Agricultural University, Guangzhou 510642, P.R. China
| | - Kai Huang
- School of Chemistry and Chemical Engineering, Guangxi University, 530004 Nanning, P.R. China; National Key Laboratory of Non-food Biomass Energy Technology, Guangxi Key Laboratory of Bio-refinery, Institute of Eco-Environmental Research, Guangxi Academy of Sciences, 98 Daling Road, 530007 Nanning, P.R. China.
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Zhao H, Zhang J, Liu Y, Liu X, Ma L, Zhou L, Gao J, Liu G, Yue X, Jiang Y. Molecular Engineering and Morphology Control of Covalent Organic Frameworks for Enhancing Activity of Metal-Enzyme Cascade Catalysis. Adv Sci (Weinh) 2024:e2400730. [PMID: 38654621 DOI: 10.1002/advs.202400730] [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: 01/22/2024] [Revised: 03/21/2024] [Indexed: 04/26/2024]
Abstract
Metal-enzyme integrated catalysts (MEICs) that combine metal and enzyme offer great potential for sustainable chemoenzymatic cascade catalysis. However, rational design and construction of optimal microenvironments and accessible active sites for metal and enzyme in individual nanostructures are necessary but still challenging. Herein, Pd nanoparticles (NPs) and Candida antarctica lipase B (CALB) are co-immobilized into the pores and surfaces of covalent organic frameworks (COFs) with tunable functional groups, affording Pd/COF-X/CALB (X = ONa, OH, OMe) MEICs. This strategy can regulate the microenvironment around Pd NPs and CALB, and their interactions with substrates. As a result, the activity of the COF-based MEICs in catalyzing dynamic kinetic resolution of primary amines is enhanced and followed COF-OMe > COF-OH > COF-ONa. The experimental and simulation results demonstrated that functional groups of COFs modulated the conformation of CALB, the electronic states of Pd NPs, and the affinity of the integrated catalysts to the substrate, which contributed to the improvement of the catalytic activity of MEICs. Further, the MEICs are prepared using COF with hollow structure as support material, which increased accessible active sites and mass transfer efficiency, thus improving catalytic performance. This work provides a blueprint for rational design and preparation of highly active MEICs.
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Affiliation(s)
- Hao Zhao
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300401, China
| | - Jialin Zhang
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300401, China
| | - Yunting Liu
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300401, China
| | - Xinlong Liu
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300401, China
| | - Li Ma
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300401, China
| | - Liya Zhou
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300401, China
| | - Jing Gao
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300401, China
| | - Guanhua Liu
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300401, China
| | - Xiaoyang Yue
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300401, China
| | - Yanjun Jiang
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300401, China
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Li J, Luo Q, Wei J, Zhou L, Chen P, Luo B, Chen Y, Pang Q, Zhang JZ. Circularly Polarized Luminescence Induced by Hydrogen-Bonding Networks in a One-Dimensional Hybrid Manganese(II) Chloride. Angew Chem Int Ed Engl 2024:e202405310. [PMID: 38606567 DOI: 10.1002/anie.202405310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 04/11/2024] [Accepted: 04/11/2024] [Indexed: 04/13/2024]
Abstract
Chiral hybrid metal halides hold great potential as circularly polarized luminescence light sources. Herein, we have obtained two enantiomeric pairs of one-dimensional hybrid chiral manganese(II) chloride single crystals, R/S-(3-methyl piperidine)MnCl3 (R/S-1) and R/S-(3-hydroxy piperidine)MnCl3 (R/S-2), crystallizing in the non-centrosymmetric space group P212121. In comparison to R/S-1, R/S-2 single crystals not only show red emission with near-unity photoluminescence quantum yield (PLQY) and high resistance to thermal quenching but also exhibit circularly polarized luminescence with an asymmetry factor (glum) of 2.5×10-3, which can be attributed to the enhanced crystal rigidity resulting from the hydrogen bonding networks between R/S-(3-hydroxy piperidine) cations and [MnCl6]4- chains. The circularly polarized luminescence activities originate from the asymmetric [MnCl6]4- luminophores induced by N-H⋅⋅⋅Cl hydrogen bonding with R/S-(3-hydroxy piperidine). Moreover, these samples demonstrate great application potential in circularly polarized light-emitting diodes and X-ray scintillators. This work shows a highly efficient photoluminescent Mn-based halide and offers a strategy for designing multifunctional chiral metal halides.
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Affiliation(s)
- Jing Li
- School of Chemistry and Chemical Engineering/State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures/Guangxi Key Laboratory of Electrochemical Energy Materials/Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning, 530004, Guangxi, P. R. China
| | - Qiulian Luo
- School of Chemistry and Chemical Engineering/State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures/Guangxi Key Laboratory of Electrochemical Energy Materials/Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning, 530004, Guangxi, P. R. China
| | - Jianwu Wei
- School of Chemistry and Chemical Engineering/State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures/Guangxi Key Laboratory of Electrochemical Energy Materials/Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning, 530004, Guangxi, P. R. China
| | - Liya Zhou
- School of Chemistry and Chemical Engineering/State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures/Guangxi Key Laboratory of Electrochemical Energy Materials/Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning, 530004, Guangxi, P. R. China
| | - Peican Chen
- School of Chemistry and Chemical Engineering/State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures/Guangxi Key Laboratory of Electrochemical Energy Materials/Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning, 530004, Guangxi, P. R. China
| | - Binbin Luo
- Department of Chemistry and Chemical Engineering, Shantou University, Shantou, 515063, Guangdong, P. R. China
| | - Yibo Chen
- Institute of Clean Energy and Materials/Key Laboratory for Clean Energy and Materials School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, Guangdong, 510006, P. R. China
| | - Qi Pang
- School of Chemistry and Chemical Engineering/State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures/Guangxi Key Laboratory of Electrochemical Energy Materials/Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning, 530004, Guangxi, P. R. China
| | - Jin Zhong Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Cruz California, 95064, United States
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4
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Zhao M, Chen GG, Zhang HL, Li QR, Zhou LY, Li Y, Yang J, Wu JX, Li YL, Huangfu H. [Development and validation of a persistent postural-perceptual dizziness screening questionnaire]. Zhonghua Yi Xue Za Zhi 2024; 104:1143-1148. [PMID: 38583044 DOI: 10.3760/cma.j.cn112137-20231111-01067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/08/2024]
Abstract
Objective: To develop a simple screening questionnaire for persistent postural-perceptual dizziness (PPPD) and evaluate its screening ability. Methods: A convenience sample of 296 individuals who met the inclusion criteria between November 2021 and January 2023 were prospectively selected for three rounds of screening at the Vertigo Specialty Clinic of the Department of Otorhinolaryngology-Head and Neck Surgery in the First Hospital of Shanxi Medical University. In conjunction with expert opinion and statistical analysis, the first and second rounds of screening were used to modify and finalize the questionnaire entries, and the third round of screening was used to evaluate the questionnaire's screening ability. Independent sample t-test was used for inter group comparison, reliability and validity indicators were employed to screen and evaluate questionnaire entries, and the receiver operating characteristic (ROC) curve was plotted to determine the optimal cut-off value and corresponding sensitivity and specificity. Results: The final PPPD screening questionnaire entries included 21 items. In evaluating the reliability of this questionnaire, the Cronbach's alpha coefficient was 0.831, the half folding coefficient was 0.742, the content validity was 0.86, and the Kaiser-Meyer-Olkin (KMO) value in the structural validity was 0.811. Additionally, there were six factors with characteristic root>1 and a cumulative contribution rate of 62.62%. The area under the ROC curve of the screening questionnaire was 0.935 (95%CI: 0.877-0.992), and the optimal cut-off value was 8.5, with a sensitivity of 85.0%, a specificity of 85.5%, and a Kappa value of 0.653. Conclusion: The PPPD simple screening questionnaire designed in this study has a high sensitivity and specificity, making it a useful tool for identifying PPPD patients.
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Affiliation(s)
- M Zhao
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - G G Chen
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - H L Zhang
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Q R Li
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - L Y Zhou
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Y Li
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - J Yang
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - J X Wu
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Y L Li
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - H Huangfu
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
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Li Y, Liu G, Zhou L, Ma L, He Y, Gao J, Jiang Y, Ren L, Liu Y. Resin-Immobilized Palladium Acetate and Alcohol Dehydrogenase for Chemoenzymatic Enantioselective Synthesis of Chiral Diarylmethanols. J Org Chem 2024; 89:4818-4825. [PMID: 38536102 DOI: 10.1021/acs.joc.4c00023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
The enantioselective synthesis of chiral diarylmethanols is highly desirable in synthetic chemistry and the pharmaceutical industry, but it remains challenging, especially in terms of green and sustainable production. Herein, a resin-immobilized palladium acetate catalyst was fabricated with high activity, stability, and reusability in Suzuki cross-coupling reaction of acyl halides with boronic acids, and the coimmobilization of alcohol dehydrogenase and glucose dehydrogenase on resin supports was also conducted for asymmetric bioreduction of diaryl ketones. Experimental results revealed that the physicochemical properties of the resins and the immobilization modes played important roles in affecting their catalytic performances. These two catalysts enabled the construction of a chemoenzymatic cascade for the enantioselective synthesis of a series of chiral diarylmethanols in high yields (83-90%) and enantioselectivities (87-98% ee). In addition, the asymmetric synthesis of the antihistaminic and anticholinergic drugs (S)-neobenodine and (S)-carbinoxamine was also achieved from the chiral diarylmethanol precursors, demonstrating the synthetic utility of the chemoenzymatic cascade.
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Affiliation(s)
- Yanyan Li
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300401, China
| | - Guanhua Liu
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300401, China
| | - Liya Zhou
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300401, China
| | - Li Ma
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300401, China
| | - Ying He
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300401, China
| | - Jing Gao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300401, China
| | - Yanjun Jiang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300401, China
| | - Limei Ren
- Department of Chemical Engineering, Shijiazhuang University, Shijiazhuang, Hebei 050035, China
| | - Yunting Liu
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300401, China
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Huang Z, Pan T, Xu L, Shi L, Ma X, Zhou L, Wang L, Wang J, Zhu G, Chen D, Song L, Pan X, Wang X, Li X, Luo Y, Chen Y. FGF4 protects the liver from immune-mediated injury by activating CaMKK β-PINK1 signal pathway to inhibit hepatocellular apoptosis. Acta Pharm Sin B 2024; 14:1605-1623. [PMID: 38572102 PMCID: PMC10985030 DOI: 10.1016/j.apsb.2023.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/11/2023] [Accepted: 12/15/2023] [Indexed: 04/05/2024] Open
Abstract
Immune-mediated liver injury (ILI) is a condition where an aberrant immune response due to various triggers causes the destruction of hepatocytes. Fibroblast growth factor 4 (FGF4) was recently identified as a hepatoprotective cytokine; however, its role in ILI remains unclear. In patients with autoimmune hepatitis (type of ILI) and mouse models of concanavalin A (ConA)- or S-100-induced ILI, we observed a biphasic pattern in hepatic FGF4 expression, characterized by an initial increase followed by a return to basal levels. Hepatic FGF4 deficiency activated the mitochondria-associated intrinsic apoptotic pathway, aggravating hepatocellular apoptosis. This led to intrahepatic immune hyper-reactivity, inflammation accentuation, and subsequent liver injury in both ILI models. Conversely, administration of recombinant FGF4 reduced hepatocellular apoptosis and rectified immune imbalance, thereby mitigating liver damage. The beneficial effects of FGF4 were mediated by hepatocellular FGF receptor 4, which activated the Ca2+/calmodulin-dependent protein kinasekinase 2 (CaMKKβ) and its downstream phosphatase and tensin homologue-induced putative kinase 1 (PINK1)-dependent B-cell lymphoma 2-like protein 1-isoform L (Bcl-XL) signalling axis in the mitochondria. Hence, FGF4 serves as an early response factor and plays a protective role against ILI, suggesting a therapeutic potential of FGF4 and its analogue for treating clinical immune disorder-related liver injuries.
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Affiliation(s)
- Zhifeng Huang
- Hepatology Diagnosis and Treatment Center, Zhejiang Provincial Key Laboratory for Accurate Diagnosis and Treatment of Chronic Liver Diseases, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health) & School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Tongtong Pan
- Hepatology Diagnosis and Treatment Center, Zhejiang Provincial Key Laboratory for Accurate Diagnosis and Treatment of Chronic Liver Diseases, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China
| | - Liang Xu
- School of Laboratory Medicine and Life Sciences, Wenzhou Medical University & Key Laboratory of Laboratory Medicine, Ministry of Education, Wenzhou Medical University, Wenzhou 325035, China
| | - Lu Shi
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health) & School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Xiong Ma
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200001, China
| | - Liya Zhou
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health) & School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Luyao Wang
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health) & School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Jiaojiao Wang
- Hepatology Diagnosis and Treatment Center, Zhejiang Provincial Key Laboratory for Accurate Diagnosis and Treatment of Chronic Liver Diseases, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health) & School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Guoqing Zhu
- Hepatology Diagnosis and Treatment Center, Zhejiang Provincial Key Laboratory for Accurate Diagnosis and Treatment of Chronic Liver Diseases, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China
| | - Dazhi Chen
- Hangzhou Medical College, Hangzhou 311300, China
| | - Lingtao Song
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health) & School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Xiaomin Pan
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health) & School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Xiaodong Wang
- Hepatology Diagnosis and Treatment Center, Zhejiang Provincial Key Laboratory for Accurate Diagnosis and Treatment of Chronic Liver Diseases, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China
| | - Xiaokun Li
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health) & School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Yongde Luo
- Hepatology Diagnosis and Treatment Center, Zhejiang Provincial Key Laboratory for Accurate Diagnosis and Treatment of Chronic Liver Diseases, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health) & School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Yongping Chen
- Hepatology Diagnosis and Treatment Center, Zhejiang Provincial Key Laboratory for Accurate Diagnosis and Treatment of Chronic Liver Diseases, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China
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Zhong C, Zhang C, Yang Y, Liang X, Pang Q, Zhou L, Chen P. Synergistic effect of photoelectrochemical aptasensor based on staggered gap ZnO/BiFeO 3 heterojunction coupled with cDNA-CdS sensitizer enabling ultrasensitive assay of kanamycin. Food Chem 2024; 437:137877. [PMID: 37918155 DOI: 10.1016/j.foodchem.2023.137877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 11/04/2023]
Abstract
Using staggered-gap ZnO/BiFeO3 heterojunction as photoactive materials and cDNA-CdS as the sensitizer for sensitive Kanamycin (KAN) detection, we have created a unique signal-off biosensing platform. The ZnO/BiFeO3 heterojunction provides active sites for aptamer loading and enhances photocurrent responsiveness. Rapid interfacial charge transfer and the separation efficiency of photo-generated carriers are enhanced by sensitization of the ternary heterojunction ZnO/BiFeO3/CdS. Signal-amplified quenching occurs when sensitizers are replaced with sterically hindered KAN. Because of the aptamer's greater affinity for KAN, the replacement of CdS causes a decrease in photocurrent response. Additionally, the weakly conductive aptamer-KAN complex causes steric hindrance, which exacerbates the photoelectrochemical signal-damping effect even more. The photoelectrochemical aptasensor exhibits excellent selectivity and stability, detecting KAN within the range of 0.00005825-0.233 μg/mL with a detection limit of 0.0466 ng/mL (S/N = 3). This work demonstrates the potential of perovskite oxides and their heterostructures for advanced photoelectrochemical biosensing applications.
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Affiliation(s)
- Chuanze Zhong
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning 530004, China
| | - Cuizhong Zhang
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning 530004, China; Photochemical Sensing and Regional Environmental Analysis Laboratory, School of Chemistry and Bioengineering, Guangxi Normal University for Nationalities, Chongzuo 532200, China
| | - Ye Yang
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning 530004, China
| | - Xuexue Liang
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning 530004, China
| | - Qi Pang
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning 530004, China
| | - Liya Zhou
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning 530004, China
| | - Peican Chen
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning 530004, China
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8
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Zhen L, Zhu Y, Wu Z, Liao J, Deng L, Ma Q, Wu Q, Ning G, Lin Q, Zhou L, Huang Y, Zhuo Z, Chen R, Yu D. Activated hedgehog gene pattern correlates with dismal clinical outcome and tumor microenvironment heterogeneity in hepatocellular carcinoma. Heliyon 2024; 10:e26989. [PMID: 38468970 PMCID: PMC10926087 DOI: 10.1016/j.heliyon.2024.e26989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 02/02/2024] [Accepted: 02/22/2024] [Indexed: 03/13/2024] Open
Abstract
Background Activation of the Hedgehog signaling pathway is linked to the initiation and development of human hepatocellular carcinoma (HCC). However, its impact on clinical outcomes and the HCC microenvironment remains unclear. Methods We performed comprehensive analyses of Hedgehog pathway genes in a large cohort of HCC patients. Specifically, we utilized univariate Cox regression analysis to identify Hedgehog genes linked to overall survival, and the LASSO algorithm was used to construct a Hedgehog-related gene pattern. We subsequently examined the correlation between the Hedgehog pattern and the HCC microenvironment employing the CIBERSORT and ssGSEA algorithms. Furthermore, Tumor Immune Dysfunction and Exclusion (TIDE) algorithm and the anti-PD-L1 treatment dataset (IMvigor210) are used to evaluate the clinical response of the Hedgehog pattern in predicting immune checkpoint inhibitors. Results We found that the Hedgehog activation score (HHAS), a prognostic score based on 11 Hedgehog genes, was significantly associated with HCC patient survival. Patients exhibiting high HHAS experienced markedly reduced survival rates compared to those with low HHAS, and HHAS emerged as an independent prognostic factor for HCC. Functional enrichment analysis unveiled the association of the HHAS phenotype with functions related to the immune system, and further investigation demonstrated that HCC patients exhibiting low HHAS displayed elevated levels of anti-tumor immune activation in CD8+ T cells, while high HHAS were linked to immune escape phenotypes and increased infiltration of immune suppressive cells. In addition, in the Immune Checkpoint Inhibitor (ICI) cohort of IMvigor210, patients with higher HHAS had worse ICI treatment outcomes and shortened survival time, indicating that the HHAS is a useful indicator for predicting patient response to immunotherapy. Conclusions In summary, our study offers valuable insights for advancing research on Hedgehog and its impact on tumor immunity, which provides an opportunity to optimize prognosis and immune therapy for HCC.
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Affiliation(s)
- Limin Zhen
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, Guangdong, China
- Department of Infectious Diseases, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, Guangdong, China
| | - Yi Zhu
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, Guangdong, China
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, Guangdong, China
| | - Zhen Wu
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, Guangdong, China
- Department of Infectious Diseases, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, Guangdong, China
| | - Jinyao Liao
- Department of Infectious Diseases, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, Guangdong, China
| | - Liaoyuan Deng
- School of Medicine, South China University of Technology, Guangzhou, Guangdong 510006, China
| | - Qianqian Ma
- Department of Infectious Diseases, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, Guangdong, China
| | - Qili Wu
- Medical Research Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Gang Ning
- Department of Gastroenterology and Hepatology, Guangzhou Digestive Diseases Center, Guangzhou First People's Hospital, South China University of Technology, Guangzhou, Guangdong Province, China
| | - Qiuxiong Lin
- Medical Research Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Liya Zhou
- Department of Radiation Oncology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan Province, China
| | - Yanjie Huang
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, Guangdong, China
| | - Zewei Zhuo
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, Guangdong, China
- School of Medicine, South China University of Technology, Guangzhou, Guangdong 510006, China
| | - Ren Chen
- Department of Infectious Diseases, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, Guangdong, China
| | - Dongnan Yu
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, Guangdong, China
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9
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Li C, Zhou L, Yin X. Pathophysiological aspects of transferrin-A potential nano-based drug delivery signaling molecule in therapeutic target for varied diseases. Front Pharmacol 2024; 15:1342181. [PMID: 38500764 PMCID: PMC10944884 DOI: 10.3389/fphar.2024.1342181] [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: 11/21/2023] [Accepted: 02/23/2024] [Indexed: 03/20/2024] Open
Abstract
Transferrin (Tf), widely known for its role as an iron-binding protein, exemplifies multitasking in biological processes. The role of Tf in iron metabolism involves both the uptake of iron from Tf by various cells, as well as the endocytosis mediated by the complex of Tf and the transferrin receptor (TfR). The direct conjugation of the therapeutic compound and immunotoxin studies using Tf peptide or anti-Tf receptor antibodies as targeting moieties aims to prolong drug circulation time and augment efficient cellular drug uptake, diminish systemic toxicity, traverse the blood-brain barrier, restrict systemic exposure, overcome multidrug resistance, and enhance therapeutic efficacy with disease specificity. This review primarily discusses the various biological actions of Tf, as well as the development of Tf-targeted nano-based drug delivery systems. The goal is to establish the use of Tf as a disease-targeting component, accentuating the potential therapeutic applications of this protein.
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Affiliation(s)
- Chang Li
- Basic Medical College, Changchun University of Traditional Chinese Medicine, Changchun, China
| | - Liya Zhou
- Basic Medical College, Changchun University of Traditional Chinese Medicine, Changchun, China
| | - Xunzhe Yin
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
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10
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Tang MJ, Zhou LY, Jia XJ, Wu JJ, Lou YB, Jin MJ, Zhu YF. [Randomized controlled study on the application effect of a new type of intravenous radiofrequency closed therapy system made in China and an imported system]. Zhonghua Wai Ke Za Zhi 2024; 62:223-228. [PMID: 38291638 DOI: 10.3760/cma.j.cn112139-20231012-00167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Objective: To compare the application effect of domestic and imported intravenous radiofrequency closure system in the treatment of primary varicose veins of lower extremities. Methods: This single-center prospective, non-inferiority randomized controlled trial was performed in the Department of Vascular Surgery, the Fourth Affiliated Hospital, Zhejiang University School of Medicine from January 2021 to January 2022. Patients with primary varicose veins of lower extremities who met the ataxation criteria were randomly assigned to the experimental group(domestic novel venous radiofrequency closure system) or the control group(imported venous radiofrequency closure system) in a ratio of 1∶1. The two groups of subjects were compared in terms of target vein closure rate, technical success rate, system operation performance, incidence of adverse events and incidence of serious adverse events(SAE) within 6 months after surgery. Quantitative data were compared by Mann-Whitney U test, and categorical data were compared by χ2 test and non-inferiority test. Results: A total of 80 subjects were included in the trial (41 in the experimental group and 39 in the control group), including 27 males and 53 females, aged (M(IQR)) 55(23) years (range:40 to 78 years). There were 48 cases of left lower limb and 32 cases of right lower limb. The technical success rate and system control performance between the groups were 100%.The incidence of adverse events (58.5% (24/41) vs. 61.5% (24/39), χ2=0.075, P=0.784), and the incidence of SAE (7.3% (3/41) vs. 5.1% (2/39), χ2=0.163, P=0.686) within 6 months after surgery in experimental group and control group had no statistical significance. There was one device-related adverse event in each of the two groups. In the experimental group, one patient developed endovenous heat-induced thrombosis after surgery and recovered after taking rivaroxaban tablets. One patient in the control group had pain in the upper right thigh for more than 1 day after operation, which was cured after using analgesic cream. No device-related SAE occurred. The venous closure rate of the experimental group was 100% (38/38) at 6 months after surgery, and that of the control group was 97.4% (37/38). The difference between the two groups was 2.63% (95%CI:-3.19 to 8.45, Z=4.865, P<0.01), and the 95%CI lower limit of the difference in target venous closure rate between two groups was greater than the non-inferiority threshold of -10.00%. Conclusion: The early application effect of the new domestic intravenous radiofrequency closure system in patients with primary varicose veins of lower extremities is in line with expectations, it is not inferior to the imported system.
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Affiliation(s)
- M J Tang
- Department of Vascular Surgery, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu 322000, China
| | - L Y Zhou
- Department of Vascular Surgery, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu 322000, China
| | - X J Jia
- Department of Vascular Surgery, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu 322000, China
| | - J J Wu
- Department of Vascular Surgery, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu 322000, China
| | - Y B Lou
- Department of Vascular Surgery, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu 322000, China
| | - M J Jin
- School of Public Health, Zhejiang University School of Medicine, Hangzhou 310000, China
| | - Y F Zhu
- Department of Vascular Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
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Zhang C, Wang Q, Zhong C, Yang Y, Liang X, Chen P, Zhou L. A simple photoelectrochemical aptasensor based on MoS 2/rGO for aflatoxin B1 detection in grain crops. Anal Methods 2024; 16:1330-1340. [PMID: 38328893 DOI: 10.1039/d3ay01455j] [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] [Indexed: 02/09/2024]
Abstract
Designing a simple and sensitive photoelectrochemical (PEC) sensor is crucial to addressing the limitations of routine analytical methods. The sensitivity of the PEC sensor, however, relies on the photoelectric material used. In this manuscript, composites of MoS2/rGO (MG) with a large area and layered structure are prepared by simple steps. This material exhibits sensitivity to visible light and demonstrates outstanding photoelectric conversion performance. The constructed PEC aptasensor using this material to detect aflatoxin B1 (AFB1) shows significantly higher sensitivity and stability compared to similar sensors. This may be attributed to the presence of surface defects in MoS2, which provide more active sites for photocatalysis. Additionally, graphene oxide (GO) is reduced to rGO by thiourea and forms a heterojunction with MoS2, enhancing charge carrier separation and interfacial electron transfer. Our research has revealed that the photocurrent intensity of the aptamer electrode decreases with an increase in AFB1 concentration, resulting in a "signal-off" PEC aptasensor. The detection limit of this aptasensor is 2.18 pg mL-1, with a linear range of 0.001 to 100 ng mL-1. This result will also provide a reference for the study of other mycotoxins in food.
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Affiliation(s)
- Cuizhong Zhang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
- Photochemical Sensing and Regional Environmental Analysis Laboratory, School of Chemistry and Bioengineering, Guangxi Normal University for Nationalities, Chongzuo 532200, China
- Guangxi Key Laboratory for High-Value Utilization of Manganese Resources, Chongzuo 532200, China
- Chongzuo Key Laboratory of Comprehensive Utilization Technology of Manganese Resources, Chongzuo 532200, China
| | - Qiang Wang
- Guangxi Key Laboratory for High-Value Utilization of Manganese Resources, Chongzuo 532200, China
- Chongzuo Key Laboratory of Comprehensive Utilization Technology of Manganese Resources, Chongzuo 532200, China
| | - Chuanze Zhong
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
| | - Ye Yang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
| | - Xuexue Liang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
| | - Peican Chen
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
| | - Liya Zhou
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
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Sun Q, Zhou L, Yu Z, Zhang J, Zhang C, Pi H. Human Parathyroid Hormone (1-34) accelerates skin wound healing through inducing cell migration via up-regulating the expression of Rac1. Cell Div 2024; 19:4. [PMID: 38347626 PMCID: PMC10860314 DOI: 10.1186/s13008-024-00111-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 02/09/2024] [Indexed: 02/15/2024] Open
Abstract
Delayed wound healing is a public issue that imposes a significant burden on both society and the patients themselves. To date, although numerous methods have been developed to accelerate the speed of wound closure, the therapeutic effects are partially limited due to the complex procedures, high costs, potential side effects, and ethical concerns. While some studies have reported that the in-vivo application of Human Parathyroid Hormone (1-34) (hPTH(1-34)) promotes the wound-healing process, the definitive role and underlying mechanisms through which it regulates the behavior of fibroblasts and keratinocytes remains unclear. Herein, hPTH(1-34)'s role in cell migration is evaluated with a series of in-vitro and in-vivo studies, whereby hPTH(1-34)'s underlying mechanism in activating the two types of cells was detected. The in-vitro study revealed that hPTH(1-34) enhanced the migration of both fibroblasts and HaCaT cells. Ras-associated C3 botulinum toxin subunit 1 (Rac1), a classical member of the Rho family, was upregulated in hPTH(1-34)-treated fibroblasts and HaCaT cells. Further study by silencing the expression of Rac1 with siRNA reversed the hPTH(1-34)-enhanced cell migration, thus confirming that Rac1 was involved in hPTH(1-34)-induced cell behavior. In-vivo study on rat wound models confirmed the effects of hPTH(1-34) on fibroblasts and keratinocytes, with increased collagen deposition, fibroblasts accumulation, and Rac1 expression in the hPTH(1-34)-treated wounds. In summary, the present study demonstrated that hPTH(1-34) accelerated wound healing through enhancing the migration of cells through the up-regulation of Rac1 expression.
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Affiliation(s)
- Qingpeng Sun
- Department of Orthopaedic, Xiangyang Hospital of Traditional Chinese Medicine, No. 24, Changzheng Road, Fancheng District, Xiangyang, 441000, Hubei Province, China
| | - Liya Zhou
- Department of Orthopaedic, Xiangyang Hospital of Traditional Chinese Medicine, No. 24, Changzheng Road, Fancheng District, Xiangyang, 441000, Hubei Province, China
| | - Zhiyong Yu
- Department of Orthopaedic, Xiangyang Hospital of Traditional Chinese Medicine, No. 24, Changzheng Road, Fancheng District, Xiangyang, 441000, Hubei Province, China
| | - Jun Zhang
- Department of Orthopaedic, Xiangyang Hospital of Traditional Chinese Medicine, No. 24, Changzheng Road, Fancheng District, Xiangyang, 441000, Hubei Province, China
| | - Chao Zhang
- Department of Orthopaedic, Xiangyang Hospital of Traditional Chinese Medicine, No. 24, Changzheng Road, Fancheng District, Xiangyang, 441000, Hubei Province, China
| | - Honglin Pi
- Department of Orthopaedic, Xiangyang Hospital of Traditional Chinese Medicine, No. 24, Changzheng Road, Fancheng District, Xiangyang, 441000, Hubei Province, China.
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13
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Wang Y, Yue X, Zhao H, Ma L, Zhou L, Liu Y, Zheng X, He Y, Liu G, Jiang Y. Heteroatom Structural Engineering of Conjugated Porous Polymers Enhances Photocatalytic Nicotinamide Cofactor Regeneration. ChemSusChem 2024:e202301868. [PMID: 38342756 DOI: 10.1002/cssc.202301868] [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: 12/13/2023] [Revised: 01/23/2024] [Accepted: 02/09/2024] [Indexed: 02/13/2024]
Abstract
Photocatalysis is an eco-friendly method to regenerate nicotinamide (NADH) cofactors, which is essential for biotransformation over oxidoreductases. Organic polymers exhibit high stability, biocompatibility and functional designability as photocatalysts, but still suffering from rapid charge recombination. Herewith the heteroatom structural engineering of donor-π-acceptor (D-π-A) conjugated porous polymers were conducted to promote charge transfer and photocatalytic NADH regeneration. The electron delocalization of polymer photocatalysts can be readily tuned by changing the electron density of the donor unit, leading to faster charge separation and better photocatalytic performance. The optimum sulfur-doped polymer exhibits the highest NADH regeneration yield of 47.4 % in 30 min and 94.1 % in 4 h, which can drive the biocatalytic C=C bond reduction of 2-cyclohexen-1-one by ene-reductase, giving the corresponding cyclohexanone yield of 96.7 % in 10 h. Moreover, the oxygen-doped polymer, from biomass derived 2,5-diformylfuran, exhibits comparable photocatalytic activity to the sulfur-doped CPP, suggesting the potential of furan as alternative donor unit to thiophene.
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Affiliation(s)
- Yujie Wang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300401, P. R. China
| | - Xiaoyang Yue
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300401, P. R. China
| | - Hao Zhao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300401, P. R. China
| | - Li Ma
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300401, P. R. China
| | - Liya Zhou
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300401, P. R. China
| | - Yunting Liu
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300401, P. R. China
| | - Xiaobing Zheng
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300401, P. R. China
| | - Ying He
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300401, P. R. China
| | - Guanhua Liu
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300401, P. R. China
| | - Yanjun Jiang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300401, P. R. China
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Sang K, Wu D, Zhao S, Zhou H, Zhang J, Tong Z, Ding F, Pang Q, Zhang X, Zhou L, Chen P. Ligand-Induced In Situ Epitaxial Growth of PbI 2 Nanosheets/MAPbI 3 Heterojunction Realizes High-Performance HTM-Free Carbon-Based MAPbI 3 Solar Cells. Small Methods 2024:e2301531. [PMID: 38308413 DOI: 10.1002/smtd.202301531] [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: 11/05/2023] [Revised: 01/15/2024] [Indexed: 02/04/2024]
Abstract
Hole-transporting layer-free carbon-based perovskite solar cells (HTL-free C-PSCs) hold great promise for photovoltaic applications due to their low cost and outstanding stability. However, the low power conversion efficiency (PCE) of HTL-free C-PSCs mainly results from grain boundaries (GBs). Here, epitaxial growth is proposed to rationally design a hybrid nanostructure of PbI2 nanosheets/perovskite with the desired photovoltaic properties. A post-treatment technique using tri(2,2,2-trifluoromethyl) phosphate (TFEP) to induce in situ epitaxial growth of PbI2 nanosheets at the GBs of perovskite films realizes high-performance HTL-free C-PSCs. The structure model and high-resolution transmission electron microscope unravel the epitaxial growth mechanism. The epitaxial growth of oriented PbI2 nanosheets generates the PbI2 /perovskite heterojunction, which not only passivates defects but forms type-I band alignment, avoiding carrier loss. Additionally, Fourier-transform infrared spectroscopy, 31 P NMR, and 1 H NMR spectra reveal the passivation effect and hydrogen bonding interaction between TFEP and perovskite. As a result, the VOC is remarkably boosted from 1.04 to 1.10 V, leading to a substantial gain in PCE from 14.97% to 17.78%. In addition, the unencapsulated PSC maintains the initial PCE of 80.1% for 1440 h under air ambient of 40% RH. The work offers a fresh perspective on the rational design of high-performance HTL-free C-PSCs.
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Affiliation(s)
- Kaihang Sang
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, 530004, China
| | - Dongqi Wu
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, 530004, China
| | - Suxin Zhao
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, 530004, China
| | - Huanyi Zhou
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, 530004, China
| | - Junfang Zhang
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, 530004, China
| | - Zhensang Tong
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, 530004, China
| | - Feifei Ding
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, 530004, China
| | - Qi Pang
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, 530004, China
| | - Xinguo Zhang
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Liya Zhou
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, 530004, China
| | - Peican Chen
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, 530004, China
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15
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Huang W, Zhang J, Fan J, Chen P, Zhou L, Zhang X. From Ancient Blue Pigment to Unconventional NIR Phosphor: A Thermal-Stable Near-Infrared I/II Broadband Emission from Ca 1-xSr xCuSi 4O 10 Solid Solution. Inorg Chem 2024; 63:812-823. [PMID: 38109652 DOI: 10.1021/acs.inorgchem.3c03811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
Phosphors used in NIR spectroscopy require broadband emission, high external quantum yield, good ability, as well as a tunable spectral range to meet the detection criteria. Two-dimensional copper silicates MCuSi4O10 (M = Ca, Sr, Ba) play an important part in ancient art and technology as synthetic blue pigments. In the recent years, these compounds were reported to show a broad near-infrared emission when excited in the visible region. Inspired by the tunable structure of MCuSi4O10, a series of broadband phosphors Ca1-xSrxCuSi4O10 were designed for realizing continuously tunable NIR emission by a modulated Cu2+ crystal field environment. The emission maximum exhibits a red shift from 915 to 950 nm and the integral intensity enhances as the Sr2+ content varies in the range of 0-0.50, which is led by the lattice expansion and the following weakened crystal field splitting on tetrahedral-coordinated Cu2+. Compared to CaCuSi4O10, the optimized sample Ca0.5Sr0.5CuSi4O10 shows enhanced NIR emission by about 2.0-fold. It exhibits quite a high external quantum efficiency covering the NIR-I and -II regions (λmax = 950 nm, fwhm = 135 nm, EQE = 26.3%) with a strong absorption efficiency (74.7%) and a long excited-state lifetime (134 μs). These solid-solution phosphors (x = 0.0-0.5) show excellent thermal stability and maintain over 50% of the RT intensity at 200 °C. The optimized phosphor was encapsulated with red-light chips to fabricate NIR pc-LED and put into night-vision application. These good properties make these Cu2+-activated NIR phosphors appealing for multiple applications such as nondestructive testing, night version, lasers, and luminescent solar concentrators.
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Affiliation(s)
- Wenjing Huang
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jiahui Zhang
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jiaqi Fan
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Peican Chen
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Liya Zhou
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Xinguo Zhang
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
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16
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Qiao Q, Chen GG, Yang J, Wu JX, Zhou LY, Li Y. [Design and evaluation of the dizziness/vertigo disease screening questionnaire]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2024; 59:57-63. [PMID: 38246762 DOI: 10.3760/cma.j.cn115330-20230904-00075] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Affiliation(s)
- Q Qiao
- Department of Otorhinolaryngology Head and Neck Surgery, First Affiliated Hospital of Air Force Military Medical University, Xi'an 710032, China
| | - G G Chen
- Department of Otorhinolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - J Yang
- Department of Otorhinolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - J X Wu
- Department of Otorhinolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - L Y Zhou
- Department of Otorhinolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Y Li
- Department of Otorhinolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
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Zhou W, Sun Z, Fan J, Huang W, Zhang J, Song H, Zhou L, Huang J, Wu ZC, Zhang X. Novel solution and solid-state emissive long-wavelength carbon dots for water sensing and white LED applications. Spectrochim Acta A Mol Biomol Spectrosc 2024; 304:123328. [PMID: 37688879 DOI: 10.1016/j.saa.2023.123328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 08/11/2023] [Accepted: 08/31/2023] [Indexed: 09/11/2023]
Abstract
Carbon dots (CDs) are among the most popular nanomaterials due to their remarkable fluorescent and electronic properties, as well as their good biocompatibility and low cytotoxicity. Currently, CDs with aggregation-induced emission (AIE) are relatively rare and have become a significant research hotspot. This is because most conventional CDs suffer from severe quenching in a solid state. Herein, novel CDs with both solution and solid-state emissions were obtained using a facile one-step hydrothermal synthesis. Specifically, the CDs exhibit yellow solvent-dependent fluorescence in solution state (λem = 580 nm) and red AIE emission in solid state (λem = 640 nm). CDs powder is utilized as a red phosphor for light-emitting diode (LED). The resulting fabricated white LEDs (WLEDs) demonstrate good performance metrics, including a Color Rendering Index (CRI) of 89.5, Correlated Color Temperature (CCT) of 3876 K, and commission Internationale d'Éclairage (CIE) coordinates of (0.350, 0.331). Furthermore, the solvent-dependent phenomenon observed in AIE-CDs can be exploited to apply their solution as a highly sensitive fluorescence sensor for quantitatively detecting amounts of water in various organic solvents. The method offers both high accuracy and sensitivity, with R2 values varying from 0.853 to 0.994 and a low detection limit ranging from 0.296 to 3.23 % across a wide linear range. This inherent versatility makes the CDs suitable for a wide range of applications, including sensing and LED devices.
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Affiliation(s)
- Weiying Zhou
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China; Department of Pharmacy, Xiamen Third Hospital, Xiamen, 361100, China
| | - Zishan Sun
- GoHoff Pharmaceuticals Co.Ltd, Guangzhou, 510700, China
| | - Jiaqi Fan
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Wenjing Huang
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Jiahui Zhang
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Hongji Song
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, Key Laboratory of Biochemical Analysis, Shandong Province, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Liya Zhou
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Jinqing Huang
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Zhan-Chao Wu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, Key Laboratory of Biochemical Analysis, Shandong Province, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Xinguo Zhang
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
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Liu Y, Ma T, Guo Z, Zhou L, Liu G, He Y, Ma L, Gao J, Bai J, Hollmann F, Jiang Y. Asymmetric α-benzylation of cyclic ketones enabled by concurrent chemical aldol condensation and biocatalytic reduction. Nat Commun 2024; 15:71. [PMID: 38167391 PMCID: PMC10761851 DOI: 10.1038/s41467-023-44452-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 12/13/2023] [Indexed: 01/05/2024] Open
Abstract
Chemoenzymatic cascade catalysis has emerged as a revolutionary tool for streamlining traditional retrosynthetic disconnections, creating new possibilities for the asymmetric synthesis of valuable chiral compounds. Here we construct a one-pot concurrent chemoenzymatic cascade by integrating organobismuth-catalyzed aldol condensation with ene-reductase (ER)-catalyzed enantioselective reduction, enabling the formal asymmetric α-benzylation of cyclic ketones. To achieve this, we develop a pair of enantiocomplementary ERs capable of reducing α-arylidene cyclic ketones, lactams, and lactones. Our engineered mutants exhibit significantly higher activity, up to 37-fold, and broader substrate specificity compared to the parent enzyme. The key to success is due to the well-tuned hydride attack distance/angle and, more importantly, to the synergistic proton-delivery triade of Tyr28-Tyr69-Tyr169. Molecular docking and density functional theory (DFT) studies provide important insights into the bioreduction mechanisms. Furthermore, we demonstrate the synthetic utility of the best mutants in the asymmetric synthesis of several key chiral synthons.
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Affiliation(s)
- Yunting Liu
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Teng Ma
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Zhongxu Guo
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Liya Zhou
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Guanhua Liu
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Ying He
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Li Ma
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Jing Gao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Jing Bai
- College of Food Science and Biology, Hebei University of Science & Technology, Shijiazhuang, 050018, China
| | - Frank Hollmann
- Department of Biotechnology, Delft University of Technology, 2629 HZ, Delft, The Netherlands.
| | - Yanjun Jiang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China.
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19
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Song ZQ, Zhou LY. [Progresses and hot spots of Helicobacter pylori in the past decade]. Zhonghua Nei Ke Za Zhi 2024; 63:1-4. [PMID: 38186107 DOI: 10.3760/cma.j.cn112138-20231012-00206] [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: 01/09/2024]
Affiliation(s)
- Z Q Song
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
| | - L Y Zhou
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
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Huang X, Zhou L, Chen J, Zhang S. Targeting GABARAPL1/HIF-2a axis to induce tumor cell apoptosis in nasopharyngeal carcinoma. Iran J Basic Med Sci 2024; 27:157-164. [PMID: 38234672 PMCID: PMC10790296 DOI: 10.22038/ijbms.2023.72952.15863] [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] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 08/09/2023] [Indexed: 01/19/2024]
Abstract
Objectives The primary gene mutations associated with nasopharyngeal carcinoma (NPC) are located within the phosphoinositide 3-kinase-mammalian target of rapamycin signaling pathways, which have inhibitory effects on autophagy. Compounds that target autophagy could potentially be used to treat NPC. However, autophagy-related molecular targets in NPC remain to be elucidated. We aimed to examine levels of autophagy-related genes, including autophagy-related 4B cysteine peptidase (ATG4B) and gamma-aminobutyric acid (GABA) type A receptor-associated protein-like 1 (GABARAPL1), in NPC cells and explored their potential role as novel targets for the treatment of NPC. Materials and Methods The mRNA and protein expression of autophagy-related genes were detected in several NPC cells. Levels of GABARAPL1 were modified by either overexpression or knockdown, followed by examining downstream targets using RT-qPCR and western blotting. The role of GABARAPL1 in NPC proliferation and apoptosis was examined by flow cytometry. Furthermore, the role of GABARAPL1 was assessed in vivo using a nude mouse xenograft tumor model. The underlying mechanism by which GABARAPL1 regulated nasopharyngeal tumor growth was investigated. Results Autophagy-related 4B cysteine peptidase (ATG4B), GABARAPL1, and Unc-51-like kinase 1 (ULK1) were significantly down-regulated in multiple NPC cell lines. Overexpression of GABARAPL1 up-regulated the expression of autophagy-related proteins, decreased the level of hypoxia-inducible factor (HIF)-2α, and induced apoptosis in NPC cells. Importantly, overexpression of GABARAPL1 slowed tumor growth. Western blotting showed that autophagy was activated, and HIF-2α was down-regulated in tumor tissues. Conclusion HIF-2α, as a substrate for autophagic degradation, may play an interesting role during NPC progression.
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Affiliation(s)
- Xiaopeng Huang
- Department of Radiation Oncology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan Province 570311, People’s Republic of China
- These authors contributed equally to this work
| | - Liya Zhou
- Department of Radiation Oncology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan Province 570311, People’s Republic of China
- These authors contributed equally to this work
| | - Jiawei Chen
- Department of Radiation Oncology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan Province 570311, People’s Republic of China
| | - Shuai Zhang
- Department of Radiation Oncology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan Province 570311, People’s Republic of China
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Wu D, Zhou H, Lai X, Liu X, Sang K, Chen Y, Chen M, Wei J, Wu S, Pang Q, Zhou L, Chen P. Eu-Based Porphyrin MOF Enables High-Performance Carbon-Based Perovskite Solar Cells. Small 2023:e2308783. [PMID: 38105423 DOI: 10.1002/smll.202308783] [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: 10/02/2023] [Revised: 11/19/2023] [Indexed: 12/19/2023]
Abstract
The low power conversion efficiency (PCE) of hole transport materials (HTM) - free carbon-based perovskite solar cells (C-PSCs) poses a challenge. Here, a novel 2D Eu-TCPP MOF (TCPP; [tetrakis (4-carboxyphenyl) porphyrin]) sandwiched between the perovskite layer and the carbon electrode is used to realize an effective and stable HTM-free C-PSCs. Relying on the synergistic effect of both the metal-free TCPP ligand with a unique absorption spectrum and hydrophobicity and the EuO4 (OH)2 chain in the Eu-TCPP MOF, defects are remarkably suppressed and light-harvesting capability is significantly boosted. Energy band alignment is achieved after Eu-TCPP MOF treatment, promoting hole collection. Förster resonance energy transfer results in improved light utilization and protects the perovskite from decomposition. As a result, the HTM-free C-PSCs with Eu-TCPP MOF reach a champion PCE of 18.13%. In addition, the unencapsulated device demonstrates outstanding thermal stability and UV resistance and keeps 80.6% of its initial PCE after 5500 h in a high-humidity environment (65%-85% RH).
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Affiliation(s)
- Dongqi Wu
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, 530004, China
| | - Huanyi Zhou
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, 530004, China
| | - Xiaoxia Lai
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, 530004, China
| | - Xinxin Liu
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, 530004, China
| | - Kaihang Sang
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, 530004, China
| | - Yan Chen
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, 530004, China
| | - Mianhong Chen
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, 530004, China
| | - Jianwu Wei
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, 530004, China
| | - Shan Wu
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, 530004, China
| | - Qi Pang
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, 530004, China
| | - Liya Zhou
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, 530004, China
| | - Peican Chen
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, 530004, China
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22
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She PF, Yang YF, Li LH, Zhou LY, Wu Y. [Antimicrobials discovery against Staphylococcus aureus by high throughput screening of drug library]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1855-1861. [PMID: 38008577 DOI: 10.3760/cma.j.cn112150-20230418-00302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/28/2023]
Abstract
To develop antimicrobials against Staphylococcus aureus by high throughput screening of drug library. The type of this study is experimental research. The clinical isolates of S. aureus were collected from the sputum samples of respiratory inpatient department of the Third Xiangya Hospital of Central South University. The anti-planktonic cells growth inhibition activity of FDA-approved drugs library (including 1 573 molecules) was assessed by building a planktonic cells screening platform; The biofilm inhibitory effect of the FDA-approved drugs was detected by building a biofilm screening platform combined with crystal violet staining; Minimal inhibitory concentrations of the selected hits were determined by broth microdilution assay. Finally, the cytotoxicity of the selected hits was detected by CCK-8 assay. The results showed that 218 hits were exhibited effective growth inhibitory effects against S. aureus by setting the concentrations of the molecules in the FDA-approved library to 100 μmol/L. These selected molecules are mainly anti-infective drugs, accounting for 118 hits; Followed by anti-cancer drugs, anti-inflammatory/-immune drugs, neurological drugs, cardiovascular drugs, endocrine drugs, and metabolic disease drugs, which accounts for 40, 19, 12, 9, 8, and 3 hits; Other unclassified drugs accounts for 9 hits. The top 10 hits exhibiting anti-planktonic cells activity against S. aureus were mainly including antitumor drugs, followed by neurological drugs and unclassified drugs like vitamin K3 with the inhibition rate of 99.65%-100%. Similarly, the top 10 hits showing biofilm inhibitory effects against S. aureus were also mainly including antitumor drugs, followed by neurological drugs and anti-inflammatory/-immune drugs with the inhibition rate of 50.22%-92.95%. The minimal inhibitory concentration (MIC) of the 51 hits by second round screening was determined by micro-dilution assay, which mainly include the antitumor drugs, cardiovascular drugs, endocrine drugs, anti-inflammatory/-immune drugs, metabolic disease drugs, neurological drugs and other unclassified drugs accounted for 22, 5, 3, 9, 2, 5 and 5 hits, respectively, with the MICs of 1.56-50 μmol/L, 6.25-25 μmol/L, 6.25-25 μmol/L, 0.2-50 μmol/L, 25-50 μmol/L, 1.56-50 μmol/L and 0.1-12.5 μmol/L, respectively. In conclusion, the minimum inhibitory concentrations of small molecules screened through high-throughput assay are at the level of micromolar with strong drug development potential and high modifiability. The high effective anti-planktonic cells and anti-biofilm activity by these molecules are expected to provide new ideas for the development of new antimicrobials against S. aureus.
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Affiliation(s)
- P F She
- Department of Laboratory Medicine, the Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Y F Yang
- Department of Laboratory Medicine, the Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - L H Li
- Department of Laboratory Medicine, the Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - L Y Zhou
- Department of Laboratory Medicine, the Affiliated Changsha Hospital of Xiangya School of Medicine (the First Hospital of Changsha), Central South University, Changsha 410005, China
| | - Y Wu
- Department of Laboratory Medicine, the Affiliated Changsha Hospital of Xiangya School of Medicine (the First Hospital of Changsha), Central South University, Changsha 410005, China
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Zhang J, Huang W, Fan J, Zhou W, Wu ZC, Zhou C, Zhou L, Xiao Q, Zhang X. Achieving Ultra-Wideband NIR-II Emission in Cr 3+-Doped Li(Sc,In)(Si,Ge)O 4 Phosphors Based on Host Composition Engineering. Inorg Chem 2023; 62:14494-14503. [PMID: 37611183 DOI: 10.1021/acs.inorgchem.3c02518] [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: 08/25/2023]
Abstract
Realizing ultra-wideband and tunable near-infrared (NIR) emission remains a great challenge in NIR phosphor development. The luminescence of most reported NIR phosphors exhibits a peak wavelength shorter than 1000 nm and the corresponding FWHM is <200 nm. Here, a series of Cr3+-activated Li(Sc,In)(Si,Ge)O4 phosphors with ultra-wideband and tunable NIR-II emission are successfully developed based on the host composition engineering strategy. Significant spectral engineering in the NIR-II region is achieved with a peak wavelength changing from 1110 to 1253 nm. The olivine host structure could provide Cr3+ activator a highly distorted octahedral site with very weak crystal field strength, which results in NIR-II ultra-wideband emission with FWHM > 300 nm. A detailed discussion on the relationship between structural variation, crystal field splitting, and NIR luminescence has been applied. As far as we know, it is the first report about Cr3+ NIR luminescence engineering in such a long wavelength and wide range. The application of these NIR-II phosphors is demonstrated in intensity-based luminescent thermometry with a relative sensitivity of >2.0% K-1 in the physiological temperature range.
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Affiliation(s)
- Jiahui Zhang
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Wenjing Huang
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jiaqi Fan
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Weiying Zhou
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Zhan-Chao Wu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, Key Laboratory of Biochemical Analysis, Shandong Province, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Chunyan Zhou
- College of Pharmaceutical Science, Guangxi Medical University, Nanning 530021, China
| | - Liya Zhou
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Qiang Xiao
- Department of Pulmonary and Critical Care Medicine, Shunde Hospital, Southern Medical University, Foshan 528300, China
| | - Xinguo Zhang
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
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Huang W, Zhang J, Fan J, Chen P, Pang Q, Zhou L, Wu ZC, Hu Y, Zhang X. Sharp-Line Near-Infrared Emission from Tetrahedron-Occupied Ni 2+ in Ca 2GeO 4. Inorg Chem 2023; 62:13370-13377. [PMID: 37560992 DOI: 10.1021/acs.inorgchem.3c01706] [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: 08/11/2023]
Abstract
As far as we are concerned, the phenomenon of Ni2+ luminescence in tetrahedral coordination has not been reported. For the first time, a new NIR phosphor Ca2GeO4:Ni2+ is developed in this work. It is found that the NIR emission from this phosphor is a sharp peak attributed to the unusual Ni2+-occupied GeO4 site in the lattice, instead of the conventional broadband luminescence of Ni2+ in the octahedrally coordinated site. Crystal-field analysis has been applied, and the parameters Dq, B, and Δ are calculated to reveal the relationship between the emission profile and the crystal field strength. The optimal Ni2+ doping concentration is found to be 1%. Ca2GeO4:Ni2+ provides an efficient sharp-line (fwhm = 16 nm) emission centered at 1164 nm which originates from the 1T2 → 3T1 transition with an internal quantum efficiency of 23.1% and a decay lifetime of about 300 μs. This work could provide some new insights to explore novel NIR luminescent materials based on transition-metal elements.
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Affiliation(s)
- Wenjing Huang
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jiahui Zhang
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jiaqi Fan
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Peican Chen
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Qi Pang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Liya Zhou
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Zhan-Chao Wu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, Key Laboratory of Biochemical Analysis, Shandong Province, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yunrui Hu
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Xinguo Zhang
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
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Yang Y, Shen L, Zhang J, Zhao S, Pang Q, Zhang X, Chen P, Zhou L. Tetracoordinate Fe 3+ Activated Li 2ZnAO 4 (A = Si, Ge) Near-Infrared Luminescent Phosphors. Inorg Chem 2023; 62:12862-12871. [PMID: 37527521 DOI: 10.1021/acs.inorgchem.3c01520] [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: 08/03/2023]
Abstract
Fe3+-doped near-infrared (NIR) phosphors have received a lot of interest because they are nontoxic, inexpensive, and ecologically benign. In this work, Fe3+-activated Li2ZnAO4 (A = Si, Ge) phosphors were synthesized by solid-phase reactions, in which Fe3+ entered the Zn2+ tetrahedral site. When excited by 300 nm UV light, broad NIR emission bands at 750 nm (Li2ZnSiO4: Fe3+) and 777 nm (Li2ZnGeO4: Fe3+) were observed, with internal quantum efficiencies (IQE) of 62.70% (Li2ZnSiO4: Fe3+) and 30.57% (Li2ZnGeO4: Fe3+). The thermal stability was increased from 35.43 to 49.79% at 373 K via cationic regulation. The combination of activation energy, electron-phonon coupling, and Debye temperature explained the improved thermal stability of Li2ZnGeO4: Fe3+ phosphor. Besides, the as-synthesized phosphor demonstrated sensitive and selective Cu2+ ion detection.
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Affiliation(s)
- Ye Yang
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development. Guangxi University, Nanning 530004, China
| | - Linawa Shen
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development. Guangxi University, Nanning 530004, China
| | - Junfang Zhang
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development. Guangxi University, Nanning 530004, China
| | - Suxin Zhao
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development. Guangxi University, Nanning 530004, China
| | - Qi Pang
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development. Guangxi University, Nanning 530004, China
| | - Xinguo Zhang
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Peican Chen
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development. Guangxi University, Nanning 530004, China
| | - Liya Zhou
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development. Guangxi University, Nanning 530004, China
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Zhao M, Chen GG, Zhang HL, Wu JX, Yang J, Li Y, Zhou LY. [Progresses of serum estrogen in predicting the progression of common paroxysmal vertigo disease in women]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:808-811. [PMID: 37599246 DOI: 10.3760/cma.j.cn115330-20221116-00690] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Affiliation(s)
- M Zhao
- The First Clinical Medical College of Shanxi Medical University, Taiyuan 030001, China
| | - G G Chen
- Department of Otolaryngology, Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - H L Zhang
- Department of Otolaryngology, Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - J X Wu
- Department of Otolaryngology, Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - J Yang
- Department of Otolaryngology, Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Y Li
- Department of Otolaryngology, Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - L Y Zhou
- Department of Otolaryngology, Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
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Chen M, Zhou L, Fan L, Li Y, Wang H. Prognostic prediction of thrombolytic therapy with rt-PA in acute ischemic stroke patients using an artificial intelligence model. Am J Transl Res 2023; 15:4735-4745. [PMID: 37560207 PMCID: PMC10408517] [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] [Received: 12/23/2022] [Accepted: 06/07/2023] [Indexed: 08/11/2023]
Abstract
OBJECTIVE Through the comparison of different prediction models, we hope to find a promising statistical method to evaluate the prognosis of patients with acute ischemic stroke (AIS) after thrombolytic therapy. METHODS Data of 518 patients who received thrombolytic therapy were retrospectively collected in this study. Among them, 362 patients met the eligibility criteria, so their data such as age, sex, smoking history, previous medical history, clinical and laboratory indicators were analyzed. According to the 3 month follow-up results, 266 patients were included in a good prognosis group (modified Rankin Scale (mRS) score ≤2) and 96 in a poor prognosis group (3≤mRS≤6). All variables with P<0.05 in univariant and multivariant analyses were assigned in logistic regression model and artificial neural network (ANN) model to predict neurological prognosis, and the performance of the two models were compared. RESULTS Age, NIHSS scores, the serum concentration of immediate glucose, APTT and MBP at admission were found to be the predictive factors through ANN and logistic regression analysis. The binary logistic regression model revealed that the percentage correction, the precision, recall and F1 score of the regression model were 79%, 69.23%, 37.50% and 48.65%, respectively. While those of ANN were 79.98%, 69.70%, 37.25%, and 49.66%, correspondingly. CONCLUSIONS ANN model is as effective as a logistic regression model in predicting the prognosis of AIS after thrombolytic therapy with rt-PA. Moreover, ANN is slightly superior to logistic regression in accuracy, precision and F1 score.
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Affiliation(s)
- Miao Chen
- Department of Emergency, The First Affiliated Hospital of Hainan Medical UniversityHaikou 570102, Hainan, China
- Department of Emergency, Xinhua Hospital Affiliated to Shanghai Jiaotong University, School of MedicineShanghai 200092, China
| | - Liya Zhou
- Information Management and Engineering, Shanghai University of Finance and EconomicsShanghai 200433, China
| | - Limin Fan
- The Institute for Biomedical Engineering and Nano Science, Tongji University School of MedicineShanghai 200092, China
| | - Yanhong Li
- Information Management and Engineering, Shanghai University of Finance and EconomicsShanghai 200433, China
| | - Hairong Wang
- Department of Emergency, Xinhua Hospital Affiliated to Shanghai Jiaotong University, School of MedicineShanghai 200092, China
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Wei J, Luo Q, Liang S, Zhou L, Chen P, Pang Q, Zhang JZ. Metal Halide Perovskite Nanocrystals for Near-Infrared Circularly Polarized Luminescence with High Photoluminescence Quantum Yield via Chiral Ligand Exchange. J Phys Chem Lett 2023:5489-5496. [PMID: 37289830 DOI: 10.1021/acs.jpclett.3c01184] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Using ligand exchange on FAPbI3 perovskite nanocrystals (PNCs) surface with chiral tridentate l-cysteine (l-cys) ligand, we successfully prepared chiral FAPbI3 PNCs that show circularly polarized luminescence (CPL) (dissymmetry factor; glum = 2.1 × 10-3) in the near-infrared (NIR) region from 700 to 850 nm and a photoluminescence quantum yield (PLQY) of 81%. The chiral characteristics of FAPbI3 PNCs are ascribed to induction by chiral l/d-cys, and the high PLQY is attributed to the passivation of the PNCs defects with l-cys. Also, effective passivation of defects on the surface of FAPbI3 PNCs by l-cys results in excellent stability toward atmospheric water and oxygen. The conductivity of the l-cys treated FAPbI3 NC films is improved, which is attributed to the partial substitution of l-cys for the insulating long oleyl ligand. The CPL of the l-cys ligand treated FAPbI3 PNCs film retains a glum of -2.7 × 10-4. This study demonstrates a facile yet effective approach to generating chiral PNCs with CPL for NIR photonics applications.
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Affiliation(s)
- Jianwu Wei
- School of Chemistry and Chemical Engineering, and Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning 530004, Guangxi, China
| | - Qiulian Luo
- School of Chemistry and Chemical Engineering, and Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning 530004, Guangxi, China
| | - Sengui Liang
- School of Chemistry and Chemical Engineering, and Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning 530004, Guangxi, China
| | - Liya Zhou
- School of Chemistry and Chemical Engineering, and Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning 530004, Guangxi, China
| | - Peican Chen
- School of Chemistry and Chemical Engineering, and Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning 530004, Guangxi, China
| | - Qi Pang
- School of Chemistry and Chemical Engineering, and Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning 530004, Guangxi, China
| | - Jin Zhong Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, United States
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Suo B, Tian X, Zhang H, Lu H, Li C, Zhang Y, Ren X, Yao X, Zhou L, Song Z. Bismuth, esomeprazole, metronidazole, and minocycline or tetracycline as a first-line regimen for Helicobacter pylori eradication: A randomized controlled trial. Chin Med J (Engl) 2023; 136:933-940. [PMID: 37010246 PMCID: PMC10278689 DOI: 10.1097/cm9.0000000000002629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Indexed: 04/04/2023] Open
Abstract
BACKGROUND Given the general unavailability, common adverse effects, and complicated administration of tetracycline, the clinical application of classic bismuth quadruple therapy (BQT) is greatly limited. Whether minocycline can replace tetracycline for Helicobacter pylori ( H . pylori ) eradication is unknown. We aimed to compare the eradication rate, safety, and compliance between minocycline- and tetracycline-containing BQT as first-line regimens. METHODS This randomized controlled trial was conducted on 434 naïve patients with H . pylori infection. The participants were randomly assigned to 14-day minocycline-containing BQT group (bismuth potassium citrate 110 mg q.i.d., esomeprazole 20 mg b.i.d., metronidazole 400 mg q.i.d., and minocycline 100 mg b.i.d.) and tetracycline-containing BQT group (bismuth potassium citrate/esomeprazole/metronidazole with doses same as above and tetracycline 500 mg q.i.d.). Safety and compliance were assessed within 3 days after eradication. Urea breath test was performed at 4-8 weeks after eradication to evaluate outcome. We used a noninferiority test to compare the eradication rates of the two groups. The intergroup differences were evaluated using Pearson chi-squared or Fisher's exact test for categorical variables and Student's t -test for continuous variables. RESULTS As for the eradication rates of minocycline- and tetracycline-containing BQT, the results of both intention-to-treat (ITT) and per-protocol (PP) analyses showed that the difference rate of lower limit of 95% confidence interval (CI) was >-10.0% (ITT analysis: 181/217 [83.4%] vs . 180/217 [82.9%], with a rate difference of 0.5% [-6.9% to 7.9%]; PP analysis: 177/193 [91.7%] vs . 176/191 [92.1%], with a rate difference of -0.4% [-5.6% to 6.4%]). Except for dizziness more common (35/215 [16.3%] vs . 13/214 [6.1%], P = 0.001) in minocycline-containing therapy groups, the incidences of adverse events (75/215 [34.9%] vs . 88/214 [41.1%]) and compliance (195/215 [90.7%] vs . 192/214 [89.7%]) were similar between the two groups. CONCLUSION The eradication efficacy of minocycline-containing BQT was noninferior to tetracycline-containing BQT as first-line regimen for H . pylori eradication with similar safety and compliance. TRIAL REGISTRATION ClinicalTrials.gov, ChiCTR 1900023646.
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Affiliation(s)
- Baojun Suo
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
| | - Xueli Tian
- Digestive Disease Research Center of Peking University, Beijing 100191, China
| | - Hua Zhang
- Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing 100191, China
| | - Haoping Lu
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
| | - Cailing Li
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
| | - Yuxin Zhang
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
| | - Xinlu Ren
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
| | - Xingyu Yao
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
| | - Liya Zhou
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
| | - Zhiqiang Song
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
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Zhang Y, Suo B, Tian X, Zhang H, Lu H, Yao X, Li C, Ren X, Zhou L, Song Z. New regimens as first-line eradication therapy for Helicobacter pylori infection in patients allergic to penicillin: A randomized controlled trial. Helicobacter 2023; 28:e12956. [PMID: 36752304 DOI: 10.1111/hel.12956] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 01/25/2023] [Accepted: 01/27/2023] [Indexed: 02/09/2023]
Abstract
BACKGROUND Helicobacter pylori eradication in penicillin-allergic patients is challenging. The effective regimen is lacking in areas with high antibiotic resistance and tetracycline unavailable. Minocycline, cefuroxime, and full-dose metronidazole are promising drugs. AIMS To compare the eradication rate, safety, and compliance among three new bismuth quadruple therapies for first-line H. pylori eradication in penicillin-allergic patients. METHODS This randomized trial was conducted on 450 naive patients with H. pylori infection and penicillin allergy. The 14-day minocycline-metronidazole-containing (minocycline 100 mg twice daily and metronidazole 400 mg four times/day), minocycline-cefuroxime-containing (minocycline 100 mg twice daily and cefuroxime 500 mg twice daily), and cefuroxime-metronidazole-containing (cefuroxime 500 mg twice daily and metronidazole 400 mg four times/day) bismuth quadruple therapies were randomly assigned to the participants. Safety and compliance were assessed within 3 days after eradication. Urea breath test was performed 4-8 weeks after eradication to evaluate outcome. RESULTS The differences of eradication rates in either intention-to-treat (84.0%, 82.7%, and 23 82.0%, p = .896) or per-protocol (91.7%, 90.9%, and 88.2%, p = .599) analysis among minocycline-metronidazole, minocycline-cefuroxime, and cefuroxime-metronidazole-containing bismuth quadruple therapies were statistically insignificant. The incidence of adverse events (35.1%, 22.6%, and 28.9%) and compliance (90.5%, 91.8%, and 91.9%) were similar. Taste distortion, nausea, and anorexia were more common in metronidazole-containing regimens, and dizziness was more common in minocycline-containing regimens. The allergy was rare (~3%). CONCLUSIONS The efficacies of three bismuth quadruple therapies containing minocycline, cefuroxime, and full-dose metronidazole (pairwise) for first-line H. pylori eradication in penicillin-allergic patients were similarly satisfactory with relatively good safety and compliance. The study was registered in the Chinese Clinical Trials Registration (ChiCTR1900023702).
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Affiliation(s)
- Yuxin Zhang
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Baojun Suo
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Xueli Tian
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Hua Zhang
- Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing, China
| | - Haoping Lu
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Xingyu Yao
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Cailing Li
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Xinlu Ren
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Liya Zhou
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Zhiqiang Song
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China
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Xu J, Liu G, He Y, Zhou L, Ma L, Liu Y, Zheng X, Gao J, Jiang Y. Enzyme@bismuth-ellagic acid: a versatile platform for enzyme immobilization with enhanced acid-base stability. Front Chem Sci Eng 2023. [DOI: 10.1007/s11705-022-2278-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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Yang Y, Lu Z, Fan H, Chen M, Shen L, Zhang X, Pang Q, Chen J, Chen P, Zhou L. Ultra-Broadband Near-Infrared Phosphors Realized by the Heterovalent Substitution Strategy. Inorg Chem 2023; 62:3601-3608. [PMID: 36790893 DOI: 10.1021/acs.inorgchem.2c04347] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Near-infrared (NIR) phosphor-converted light-emitting diodes with broadband emission have received considerable interest. However, there remains a challenge in the construction of ultra-broadband NIR phosphors, hindering their further application. In this work, a heterovalent substitution strategy is proposed to construct a novel ultra-broadband NIR-emitting LaTiTaO6:Cr3+ phosphor with a full width at half maximum of ∼300 nm. Crystal structure, time-resolved emission spectroscopy, and electron paramagnetic resonance analyses confirm that only one crystallographic site of Cr3+ with separated ions exists. Electron and phonon coupling (EPC) evaluated by the Huang-Rhys factor (S) reveals that the heterovalent substitution strategy contributes to strong EPC with S = 9.185, resulting in ultra-broadband emission. Interestingly, a remarkable blue shift of emission from 1050 to 922 nm with increasing temperature is observed. Moreover, the application of LaTiTaO6:Cr3+ phosphor is demonstrated in the qualitative analysis of ethanol/water mixtures. The work will enrich the toolbox for designing broadband NIR-emitting materials.
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Affiliation(s)
- Ye Yang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Zuizhi Lu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Hua Fan
- College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Mianhong Chen
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Linawa Shen
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Xinguo Zhang
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Qi Pang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Jianhua Chen
- Guangxi Key Laboratory of Processing for Non-Ferrous Metal and Featured Materials, Guangxi University, Nanning 530004, China
| | - Peican Chen
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.,Guangxi Key Laboratory of Electrochemical Energy Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Liya Zhou
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.,Guangxi Key Laboratory of Electrochemical Energy Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
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Wang X, Zhou L, Ye S, Liu S, Chen L, Cheng Z, Huang Y, Wang B, Pan M, Wang D, Wang L, Lei Z, Im YJ, Li X. rFGF4 alleviates lipopolysaccharide-induced acute lung injury by inhibiting the TLR4/NF-κB signaling pathway. Int Immunopharmacol 2023; 117:109923. [PMID: 36842235 DOI: 10.1016/j.intimp.2023.109923] [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: 11/22/2022] [Revised: 01/30/2023] [Accepted: 02/17/2023] [Indexed: 02/28/2023]
Abstract
Acute lung injury (ALI) is a serious and common clinical disease. Despite significant progress in ALI treatment, the morbidity and mortality rates remain high. However, no effective drug has been discovered for ALI. FGF4, a member of the FGF family, plays an important role in the regulation of various physiological and pathological processes. Therefore, in the present study, we aimed to study the protective effects of FGF4 against LPS-induced lung injury in vivo and in vitro. We found that rFGF4 treatment improved the lung W/D weight ratio, the survival rate, immune cell infiltration and protein concentrations in mice with LPS-induced ALI. Histological analysis revealed that rFGF4 significantly attenuated lung tissue injury and cell apoptosis. Furthermore, rFGF4 inhibited the activation of the TLR4/NF-κB signaling pathway and the production of pro-inflammatory mediators in LPS-injured lung tissues, murine alveolar macrophages (MH-S) and murine pulmonary epithelial (MLE-12) cells. The results of cell experiments further verified that rFGF4 inhibited the production of inflammatory mediators in MH-S cells and MLE-12 cells by regulating the TLR4/NF-κB signaling pathway. These results revealed that rFGF4 protected lung tissues and inhibited inflammatory mediators in mice with LPS-induced ALI by inhibiting the TLR4/NF-κB signaling pathway in MH-S and MLE-12 cells.
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Affiliation(s)
- Xianshi Wang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China; College of Pharmacy, Chonnam National University, Gwangju 61186, South Korea
| | - Liya Zhou
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Shasha Ye
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Sidan Liu
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Lin Chen
- College of Pharmacy, Chonnam National University, Gwangju 61186, South Korea
| | - Zizhao Cheng
- Department of Pharmacy, Xuanwu Hospital of Capital Medical University, Beijing 100053, China
| | - Yuli Huang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Beibei Wang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Minling Pan
- School of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Dezhong Wang
- School of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Luhai Wang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Zhenli Lei
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Young Jun Im
- College of Pharmacy, Chonnam National University, Gwangju 61186, South Korea.
| | - Xiaokun Li
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China.
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Ren X, Shi Y, Suo B, Yao X, Lu H, Li C, Zhang Y, Zhou L, Tian X, Song Z. Individualized diagnosis and eradication therapy for Helicobacter pylori infection based on gene detection of clarithromycin resistance in stool specimens: A systematic review and meta-analysis. Helicobacter 2023; 28:e12958. [PMID: 36828668 DOI: 10.1111/hel.12958] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/01/2023] [Accepted: 02/09/2023] [Indexed: 02/26/2023]
Abstract
BACKGROUND Empiric therapy for Helicobacter pylori infection results in significantly increased antibiotic resistance and decreased eradication efficacy. The genotypic testing of clarithromycin resistance from stool specimens is a promising method for individualized diagnosis and treatment. This study aimed to determine the status of research and application on this method through a systematic review and meta-analysis. METHODS PubMed, Embase, MEDLINE, and WAN FANG database were searched for relevant literature. The quality of included diagnostic articles was evaluated using the quality Assessment of Diagnostic Accuracy Studies-2 tool. A bivariate random-effect model was conducted to calculate the diagnostic accuracy of genotypic testing of clarithromycin resistance. RESULTS A total of 16 diagnostic-related were included and analyzed after exclusions. The pooled sensitivity and specificity of diagnostic meta-analysis were 0.93 (95% confidence interval [CI]: 0.90-0.96) and 0.98 (95% CI: 0.93-1.00), respectively. The area under the curve (AUC) of the summary receiver operating characteristic was 0.97 (95% CI: 0.95-0.98). The genotypic testing in stool samples had heterogeneous sensitivity (Q = 37.82, p < .01, I2 = 37.82) and specificity (Q = 60.34, p < .01, I2 = 93.72) in detecting clarithromycin resistance. Purification method, stool sample weight, real-time PCR, and antimicrobial susceptibility testing as reference accounted for the heterogeneity of pooled sensitivity, while patient age, purification method, stool sample weight, and real-time PCR for the heterogeneity of pooled specificity. CONCLUSION The genotypic testing of clarithromycin resistance from stool specimens is an accurate, convenient, noninvasive, and rapid detection technology, providing a definitive diagnosis of clarithromycin resistance and guiding the rational antibiotic selection.
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Affiliation(s)
- Xinlu Ren
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Yanyan Shi
- Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing, China
| | - Baojun Suo
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Xingyu Yao
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Haoping Lu
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Cailing Li
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Yuxin Zhang
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Liya Zhou
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Xueli Tian
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Zhiqiang Song
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China
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Fan J, Zhou W, Wu ZC, Yang Y, Chen P, Pang Q, Zhou L, Zhou C, Mo F, Zhang X. Broadband-excited and green-red tunable emission in Eu 2+-sensitized Ca 8MnTb(PO 4) 7 phosphors induced by structural-confined cascade energy transfer. Dalton Trans 2023; 52:2326-2334. [PMID: 36723099 DOI: 10.1039/d2dt04107c] [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: 01/18/2023]
Abstract
Novel green-red color-tunable Ca8(Mg,Mn)Tb(PO4)7:Eu2+ phosphors have been synthesized via the traditional solid-state method. Since Tb3+/Mn2+ ions are the parent ions in the lattice, the structural confinement occurs when the sensitizer Eu2+ is introduced into the Ca8(Mg,Mn)Tb(PO4)7:Eu2+ structure. The distance from Eu2+ to Tb3+/Mn2+ is confined in the 5 Å range, which induces a highly efficient energy transfer process. At Eu2+ 350 nm excitation, Ca8MgTb(PO4)7:Eu2+ shows dominant Tb3+ green emission with almost-vanished Eu2+ emission. Red emission is clearly observed as Mn2+ ions doping into Ca8MgTb(PO4)7:Eu2+, and color-tuning from green to red is realized by varying the Mn2+ contents. Eu2+-Tb3+-Mn2+ cascade energy transfer process is in effect due to short Eu2+-Tb3+/Mn2+ and Tb3+-Mn2+ distances, which is verified by PL and decay variations. Meanwhile, the Ca8(Mg,Mn)Tb(PO4)7:Eu2+ phosphor indicates good thermal stability and maintained the 45% emission level at 150 °C, which demonstrates their potential applications in white light LEDs.
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Affiliation(s)
- Jiaqi Fan
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
| | - Weiying Zhou
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
| | - Zhan-Chao Wu
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong Province, China
| | - Ye Yang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Peichan Chen
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Qi Pang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Liya Zhou
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Chunyan Zhou
- College of Pharmaceutical Science, Guangxi Medical University, Nanning, 530021, China
| | - Fuwang Mo
- Guangxi Key Laboratory of Calcium Carbonate Resources Comprehensive Utilization, College of Materials and Chemical Engineering, Hezhou University, Hezhou 542899, China
| | - Xinguo Zhang
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
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Jia F, Liu Y, Deng X, Cao X, Zheng X, Zhou L, Gao J, Jiang Y. Immobilization of Enzymes on Cyclodextrin-Anchored Dehiscent Mesoporous TiO 2 for Efficient Photoenzymatic Hydroxylation. ACS Appl Mater Interfaces 2023; 15:7928-7938. [PMID: 36731117 DOI: 10.1021/acsami.2c17971] [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
A three-in-one heterogeneous catalyst (UPO@dTiO2-CD) was fabricated by grafting cyclodextrins (CDs) on the dehiscent TiO2 (dTiO2) surface and subsequently immobilizing unspecific peroxygenase (rAaeUPO), which exhibited double enhanced electron/mass transfer in photo-enzymatic enantioselective hydroxylation of the C-H bond. The tunable anatase/rutile phase ratio and dehiscent mesoporous architectures of dTiO2 and the electron donor feature and hydrophobic inner cavity of the CDs are independently responsible for accelerating both electron and mass transfer. The coordination of the photocatalytic and enzymatic steps was achieved by structural and compositional regulation. The optimized UPO@dTiO2-CD not only displayed high catalytic efficiency (turnover number and turnover frequency of rAaeUPO up to >65,000 and 91 min-1, respectively) but also exhibited high stability and reusability.
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Affiliation(s)
- Feifei Jia
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin300130, China
| | - Yunting Liu
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin300130, China
- Tianjin Key Laboratory of Chemical Process Safety, Hebei University of Technology, Tianjin300130, China
| | - Xuewu Deng
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin300130, China
| | - Xue Cao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin300130, China
| | - Xiaobing Zheng
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin300130, China
| | - Liya Zhou
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin300130, China
| | - Jing Gao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin300130, China
| | - Yanjun Jiang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin300130, China
- Tianjin Key Laboratory of Chemical Process Safety, Hebei University of Technology, Tianjin300130, China
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Liu Y, Guo N, Kong W, Gao S, Liu G, Zhou L, Gao J, Jiang Y. Magnetic wrinkled organosilica-based metal-enzyme integrated catalysts for enhanced chemoenzymatic catalysis. Green Synthesis and Catalysis 2023. [DOI: 10.1016/j.gresc.2023.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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Song Z, Suo B, Tian X, Ren X, Xue Y, Niu Z, Zhou L. Tailored triple plus bismuth therapy based on previous antibiotic medication history for first-line Helicobacter pylori eradication: A randomized trial. Dig Liver Dis 2023; 55:601-607. [PMID: 36646526 DOI: 10.1016/j.dld.2022.12.019] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 12/20/2022] [Accepted: 12/23/2022] [Indexed: 01/18/2023]
Abstract
INTRODUCTION There are no randomized controlled trials that demonstrate the role of tailored therapy based on past medication history in improving efficacy of H. pylori eradication compared to empiric therapies. The objective of this study was to determine whether tailored triple plus bismuth therapy (TBT) can achieve higher eradication rates based on previous antibiotic history than empiric TBTs. METHODS 800 treatment-naïve patients were randomly assigned to four groups receiving clarithromycin-, levofloxacin- or metronidazole-containing empiric TBT and tailored TBT (clarithromycin and levofloxacin chosen based on previous macrolides and quinolones medication history). Correlation analyses were performed between past medication history and resistance or eradication rate. RESULTS The eradication rates of tailored TBT were significantly higher than clarithromycin-, levofloxacin- and metronidazole-containing empiric TBT in both intention-to-treat (89.5%, 80.8%, 81.5% and 81.5%) and per-protocol (95.1%, 86.7%, 86.5% and 87.8%) analyses (P<0.05). In patients with previous macrolides, quinolones or nitroimidazoles medication history, the resistance rates of corresponding clarithromycin, levofloxacin or metronidazole were significantly higher than patients without past medication history, and the eradication rates of corresponding clarithromycin- or levofloxacin-containing empiric TBT were significantly lower. CONCLUSION Tailored TBT based on previous antibiotic history can achieve higher eradication rates than empiric TBT for first-line H. pylori eradication.
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Affiliation(s)
- Zhiqiang Song
- Department of Gastroenterology, Peking University Third Hospital, Beijing, 100191, China
| | - Baojun Suo
- Department of Gastroenterology, Peking University Third Hospital, Beijing, 100191, China
| | - Xueli Tian
- Department of Gastroenterology, Peking University Third Hospital, Beijing, 100191, China
| | - Xinlu Ren
- Department of Gastroenterology, Peking University Third Hospital, Beijing, 100191, China
| | - Yan Xue
- Department of Gastroenterology, Peking University Third Hospital, Beijing, 100191, China
| | - Zhanyue Niu
- Department of Gastroenterology, Peking University Third Hospital, Beijing, 100191, China
| | - Liya Zhou
- Department of Gastroenterology, Peking University Third Hospital, Beijing, 100191, China.
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Zhou L, Lu H, Song Z, Lyu B, Chen Y, Wang J, Xia J, Zhao Z. 2022 Chinese national clinical practice guideline on Helicobacter pylori eradication treatment. Chin Med J (Engl) 2022; 135:2899-2910. [PMID: 36579940 PMCID: PMC10106216 DOI: 10.1097/cm9.0000000000002546] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Helicobacter pylori ( H. pylori ) infection is an infectious disease with a prevalence rate of up to 50% worldwide. It can cause indigestion, gastritis, peptic ulcer, and gastric cancer. H. pylori eradication treatment can effectively control disease progression and reduce the risk of the above conditions. However, the escalating trend of antibiotic resistance presents a global challenge for H. pylori eradication. We aim to provide guidance on pharmacological treatment of H. pylori infection. METHODS This clinical practice guideline is developed following the World Health Organization's recommended process, adopting Grading of Recommendations Assessment, Development and Evaluation in assessing evidence quality, and utilizing Evidence to Decision framework to formulate clinical recommendations, minimizing bias and increasing transparency of the clinical practice guideline development process. We used the Reporting Items for practice Guidelines in HealThcare (RIGHT) statement and The Appraisal of Guidelines for Research and Evaluation II (AGREE II) as reporting and conduct guides to ensure the guideline's completeness and transparency. RESULTS Though decreasing in developed countries, the prevalence of H. pylori remains high in developing countries, causing a major public health burden. This clinical practice guideline contains 12 recommendations concerning pharmacological treatment for H. pylori eradication. Among them, it is worth highlighting that bismuth preparations are inexpensive, safe, and effective, consequently making bismuth quadruple therapy a preferred choice for initial and rescue treatment. In empirical treatment, high-dose dual therapy is equally effective compared with bismuth quadruple therapy. CONCLUSIONS The 12 recommendations in this clinical practice guideline are formed with consideration for stakeholders' values and preferences, resource use, feasibility, and acceptability. Recommendations are generalizable to resource limited settings with similar antibiotic resistance pattern as China, and lower middle-income countries facing comparable sociological and technical challenges. REGISTRATION Guidelines International Network (GIN) website, https://guidelines.ebmportal.com/node/69996 .
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Affiliation(s)
- Liya Zhou
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
| | - Hong Lu
- Department of Gastroenterology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Zhiqiang Song
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
| | - Bin Lyu
- Department of Gastroenterology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310018, China
| | - Ye Chen
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Jiyao Wang
- Department of Gastroenterology, Fudan University Affiliated Zhongshan Hospital, Shanghai 200032, China
| | - Jun Xia
- Nottingham Ningbo GRADE Center, Nottingham China Health Institute, University of Nottingham Ningbo China, Ningbo, Zhejiang 315100, China
- Academic Unit of Lifespan and Population Health, School of Medicine, The University of Nottingham, Nottingham, UK
| | - Zhan Zhao
- Systematic Review Solutions Ltd, Shanghai 201403, China
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Du XY, Chen GG, Zhou LY, Li Y, Yang J, Wu JX, Huangfu H. [Review on screening questionnaire related to epsiodic vestibular syndrome]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:1535-1539. [PMID: 36707966 DOI: 10.3760/cma.j.cn115330-20220425-00225] [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: 01/29/2023]
Affiliation(s)
- X Y Du
- First Clinical Medical College, Shanxi Medical University, Taiyuan 030001, China Department of Otolaryngology Head and Neck Surgery, the First Hospital Medical University, Taiyuan 030001, China
| | - G G Chen
- Department of Otolaryngology Head and Neck Surgery, the First Hospital Medical University, Taiyuan 030001, China
| | - L Y Zhou
- Department of Otolaryngology Head and Neck Surgery, the First Hospital Medical University, Taiyuan 030001, China
| | - Y Li
- Department of Otolaryngology Head and Neck Surgery, the First Hospital Medical University, Taiyuan 030001, China
| | - J Yang
- Department of Otolaryngology Head and Neck Surgery, the First Hospital Medical University, Taiyuan 030001, China
| | - J X Wu
- Department of Otolaryngology Head and Neck Surgery, the First Hospital Medical University, Taiyuan 030001, China
| | - H Huangfu
- Department of Otolaryngology Head and Neck Surgery, the First Hospital Medical University, Taiyuan 030001, China
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Hu Y, Yan X, Zhou L, Chen P, Pang Q, Chen Y. Improved Energy Transfer in Mn-Doped Cs 3Cu 2I 5 Microcrystals Induced by Localized Lattice Distortion. J Phys Chem Lett 2022; 13:10786-10792. [PMID: 36374550 DOI: 10.1021/acs.jpclett.2c03039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
With nontoxicity and high emission efficiency, luminescent copper(I)-based halides have attracted much attention as alternatives for lead-based perovskites in photoelectric domains. However, extending the emission wavelength by doping with Mn2+ in a facile way is still a challenge. In this work, Mn2+-doped Cs3Cu2I5 microcrystals were synthesized by a mild solution method, and double emission bands from self-trapped excitons (STEs) and Mn2+ peaking at 445 and 560 nm, respectively, were observed. More importantly, further introduction of alkali metal ions (Rb+, K+, Na+) considerably promoted the luminescence performance of the Cs3Cu2I5-Mn microcrystals. The STE → Mn2+ energy transfer efficiency of the typical sample doped with Na+ increased from ∼0 to 21.30%, and the photoluminescence quantum yield (PLQY) increased from 47.32% to 62.06%. The detailed structural and optical characterizations combined with DFT calculations proved that the doping with alkali metal ions causes lattice distortion and enhances the coupling between [MnI4] and [CuI4] tetrahedra, thus promoting the energy transfer efficiency and the PLQY.
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Affiliation(s)
- Yangxiang Hu
- School of Chemistry and Chemical Engineering/Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi University, Nanning, Guangxi530004, P. R. China
| | - Xinxin Yan
- School of Chemistry and Chemical Engineering/Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi University, Nanning, Guangxi530004, P. R. China
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials, Guangzhou University, Guangzhou510006, P. R. China
| | - Liya Zhou
- School of Chemistry and Chemical Engineering/Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi University, Nanning, Guangxi530004, P. R. China
| | - Peican Chen
- School of Chemistry and Chemical Engineering/Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi University, Nanning, Guangxi530004, P. R. China
| | - Qi Pang
- School of Chemistry and Chemical Engineering/Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi University, Nanning, Guangxi530004, P. R. China
| | - Yibo Chen
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials, Guangzhou University, Guangzhou510006, P. R. China
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Lan Y, Bao W, Liang C, Li G, Zhou L, Yang J, Wei L, Su Q. Synthesis of copper–nitrogen codoped carbon quantum dots using frangipani as a carbon source and application of metronidazole determination. Chem Pap 2022. [DOI: 10.1007/s11696-022-02487-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Xiao S, Yao X, Ye J, Tian X, Yin Z, Zhou L. Epigenetic modification facilitates proline synthase PYCR1 aberrant expression in gastric cancer. Biochim Biophys Acta Gene Regul Mech 2022; 1865:194829. [PMID: 35654390 DOI: 10.1016/j.bbagrm.2022.194829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 05/17/2022] [Accepted: 05/23/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND & AIMS Pyrroline-5-carboxylate reductase 1 (PYCR1) upregulation contributes to the progression of gastric cancer (GC) and indicates poor survival. However, PYCR1 expression profile in GC subtypes and the mechanism behind its upregulation are not well-studied. METHODS PYCR1 expression profiles in GC subtypes and different stages of gastric carcinogenesis were assessed in different GC cohorts. Genetic alterations and epigenetic modulation in PYCR1 regulation were further investigated using bioinformatics analysis and in vitro experiments. RESULTS PYCR1 expression was significantly higher in intestinal-type GC and associated molecular subtypes in TCGA and ACRG GC cohorts. During the cascade of intestinal-type GC, PYCR1 was continuously increased from normal gastric tissues through to atrophic gastritis, to intraepithelial neoplasia, and to GC. Copy number alterations in PYCR1 were associated with PYCR1 transcript expression. One CpG island was observed in PYCR1 promoter region, and the hypomethylation occurred at this region could contribute to PYCR1 transcriptional activation in GC. Besides, H3K27ac combination was found in PYCR1 promoter, and acetyltransferase p300 induced H3K27ac could promote PYCR1 expression in GC. CONCLUSIONS PYCR1 expression varies across GC subtypes, with intestinal-type GC and associated molecular subtypes having the highest expression. Hypomethylation at CpG sites and p300-induced H3K27ac modification within PYCR1 promoter could contribute to maintaining PYCR1 overexpression in GC. These results provide us with a new insight into epigenetic modulation in mitochondrial proline metabolism.
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Affiliation(s)
- Shiyu Xiao
- Department of Gastroenterology, Peking University Third Hospital, 49 North Garden Road, Beijing, China; Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, 49 North Garden Road, Beijing, China
| | - Xingyu Yao
- Department of Gastroenterology, Peking University Third Hospital, 49 North Garden Road, Beijing, China; Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, 49 North Garden Road, Beijing, China
| | - Juxiang Ye
- Department of Pathology, School of Basic Medical Science, Peking University Third Hospital, Peking University Health Science Center, 49 North Garden Road, Beijing, China
| | - Xueli Tian
- Department of Gastroenterology, Peking University Third Hospital, 49 North Garden Road, Beijing, China; Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, 49 North Garden Road, Beijing, China
| | - Zhihao Yin
- Department of Gastroenterology, Peking University Third Hospital, 49 North Garden Road, Beijing, China; Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, 49 North Garden Road, Beijing, China
| | - Liya Zhou
- Department of Gastroenterology, Peking University Third Hospital, 49 North Garden Road, Beijing, China; Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, 49 North Garden Road, Beijing, China.
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Ma T, Kong W, Liu Y, Zhao H, Ouyang Y, Gao J, Zhou L, Jiang Y. Asymmetric Hydrogenation of C = C Bonds in a SpinChem Reactor by Immobilized Old Yellow Enzyme and Glucose Dehydrogenase. Appl Biochem Biotechnol 2022; 194:4999-5016. [PMID: 35687305 DOI: 10.1007/s12010-022-03991-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/27/2022] [Indexed: 11/27/2022]
Abstract
The application of immobilized enzymes in pharmaceutical and bulk chemical production has been shown to be economically viable. We demonstrate the exceptional performance of a method that immobilizes the old yellow enzyme YqjM and glucose dehydrogenase (GDH) on resin for the asymmetric hydrogenation (AH) of C = C bonds in a SpinChem reactor. When immobilized YqjM and GDH are reused 10 times, the conversion of 2-methylcyclopentenone could reach 78%. Which is because the rotor of the SpinChem reactor effectively reduces catalyst damage caused by shear force in the reaction system. When the substrate concentration is 175 mM, an 87% conversion of 2-methylcyclopentenone is obtained. The method is also observed to perform well for the AH of C = C bonds in other unsaturated carbonyl compounds with the SpinChem reactor. Thus, this method has great potential for application in the enzymatic production of chiral compounds.
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Affiliation(s)
- Teng Ma
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, People's Republic of China.,Tianjin Key Laboratory of Chemical Process Safety, Hebei University of Technology, Tianjin, 300130, People's Republic of China
| | - Weixi Kong
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, People's Republic of China.,Tianjin Key Laboratory of Chemical Process Safety, Hebei University of Technology, Tianjin, 300130, People's Republic of China
| | - Yunting Liu
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, People's Republic of China.,Tianjin Key Laboratory of Chemical Process Safety, Hebei University of Technology, Tianjin, 300130, People's Republic of China
| | - Hao Zhao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, People's Republic of China.,Tianjin Key Laboratory of Chemical Process Safety, Hebei University of Technology, Tianjin, 300130, People's Republic of China
| | - Yaping Ouyang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, People's Republic of China.,Tianjin Key Laboratory of Chemical Process Safety, Hebei University of Technology, Tianjin, 300130, People's Republic of China
| | - Jing Gao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, People's Republic of China.,Tianjin Key Laboratory of Chemical Process Safety, Hebei University of Technology, Tianjin, 300130, People's Republic of China
| | - Liya Zhou
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, People's Republic of China. .,Tianjin Key Laboratory of Chemical Process Safety, Hebei University of Technology, Tianjin, 300130, People's Republic of China.
| | - Yanjun Jiang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, People's Republic of China. .,Tianjin Key Laboratory of Chemical Process Safety, Hebei University of Technology, Tianjin, 300130, People's Republic of China.
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Song Z, Chen Y, Lu H, Zeng Z, Wang W, Liu X, Zhang G, Du Q, Xia X, Li C, Jiang S, Wu T, Li P, He S, Zhu Y, Zhang G, Xu J, Li Y, Huo L, Lan C, Miao Y, Jiang H, Chen P, Shi L, Tuo B, Zhang D, Jiang K, Wang J, Yao P, Huang X, Yang S, Wang X, Zhou L. Diagnosis and treatment of Helicobacter pylori infection by physicians in China: A nationwide cross-sectional study. Helicobacter 2022; 27:e12889. [PMID: 35363917 DOI: 10.1111/hel.12889] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 02/23/2022] [Accepted: 03/09/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND To investigate the current state of knowledge and practice of Helicobacter pylori (H. pylori) infection management in China. MATERIALS AND METHODS This nationwide, multicenter, cross-sectional questionnaire survey was conducted between March and April 2021 with respect to the diagnosis and treatment of H. pylori infection in 31 provinces, encompassing over 1000 hospitals in mainland China. General physician information, diagnostic and detection status, eradication treatment, reexamination and follow-up after treatment, and basic knowledge of physicians were collected and compared with the Fifth Chinese National Consensus Report on Management of H. pylori infection and the 2016 Maastricht V/Florence guidelines. The subgroup analysis was also performed. RESULTS Of the 6873 questionnaire respondents, 48.8% were males, and 51.2% were females. Approximately, 26.5% of respondents indicated that their hospitals had dedicated clinics for managing H. pylori infection. Moreover, 88.0% of respondents prescribed a bismuth-containing quadruple regimen as the initial eradication treatment, and 92.7% deemed the gastric acid suppression critical. Furthermore, 91.0% of respondents routinely recommended a reexamination 1-2 months after eradication therapy, and 95.1% advised patients to stop PPI treatment at least 2 weeks before reexamination. The detail of following (the choice of target population/methods; the choice/availability of drugs/regimens, indications for eradication, factors influencing eradication efficacy/improvement methods and factors influencing adherence, management options/factors influencing relapse; the timing and methods, awareness of reinfection rates/prevention measures, and the approach to continuing education, awareness of guidelines, and acceptance of current core concepts of management) was also described. Subgroup analysis further revealed that significant differences were existed in being gastroenterologist or not, different education level, professional title, years of working, and provincial administrative regions. CONCLUSIONS Chinese physicians' skills and knowledge about the diagnosis and treatment of H. pylori infection could be improved. More works on education are needed in future.
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Affiliation(s)
- Zhiqiang Song
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Ye Chen
- Department of Gastroenterology, Integrative Microecology Center, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong, China
| | - Hong Lu
- Department of Gastroenterology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Zhirong Zeng
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Weihong Wang
- Department of Gastroenterology, Peking University First Hospital, Beijing, China
| | - Xiaofeng Liu
- Department of Gastroenterology, The 960th Hospital of the PLA Joint Logistics Support Force, Jinan, Shandong, China
| | - Guoxin Zhang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Qin Du
- Department of Gastroenterology, The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xingzhou Xia
- Department of Gastroenterology, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Changping Li
- Department of Gastroenterology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Shulin Jiang
- Department of Gastroenterology, 2nd Hospital Hebei Medical University, Shijiazhuang, Hebei, China
| | - Ting Wu
- Department of Gastroenterology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Peiyuan Li
- Division of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Shuixiang He
- Division of Gastroenterology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shanxi, China
| | - Yin Zhu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Guiying Zhang
- Department of Gastroenterology, Xiangya Hospital of Zhongnan University, Changsha, Hunan, China
| | - Jianming Xu
- Department of Gastroenterology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Yan Li
- Department of Gastroenterology, Shengjing Hospital, Shenyang, Liaoning, China
| | - Lijuan Huo
- Department of Gastroenterology, First Affiliated Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Chunhui Lan
- Department of Gastroenterology, The Army Medical University, Chongqing, China
| | - Yinglei Miao
- Department of Digestive Diseases, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Haixing Jiang
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Ping Chen
- Department of Gastroenterology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Lijun Shi
- Department of Gastroenterology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Biguang Tuo
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Dekui Zhang
- Department of Gastroenterology, Second Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Kui Jiang
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin, China
| | - Jiangbin Wang
- Digestive Department, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Ping Yao
- Department of Gastroenterology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Xiaoxi Huang
- Department of Gastroenterology, Haikou People's Hospital, Haikou, Hainan, China
| | - Shaoqi Yang
- Department of Gastroenterology, Ningxia Medical University General Hospital, Yinchuan, Ningxia Hui Autonomous Region, China
| | - Xuehong Wang
- Department of Gastroenterology, Qinghai University Affiliated Hospital, Xining, Qinghai, China
| | - Liya Zhou
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China
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Xiao S, Lu H, Xue Y, Cui R, Meng L, Jin Z, Yin Z, Zhou L. Long-Term Outcome of Gastric Mild-Moderate Dysplasia: A Real-World Clinical Experience. Clin Gastroenterol Hepatol 2022; 20:1259-1268.e7. [PMID: 34718170 DOI: 10.1016/j.cgh.2021.10.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 10/08/2021] [Accepted: 10/14/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS The natural course of gastric mild-moderate dysplasia in a country with high incidence of gastric cancer (GC) is relatively unknown. We aimed to determine the long-term cumulative incidence of and risk factors for advanced neoplasia in patients with gastric dysplasia. METHODS This was a single-center observational study including all consecutive patients diagnosed with gastric mild-moderate dysplasia between 2000 and 2017. Follow-up data were collected until December 2019. We determined the cumulative incidence of advanced neoplasia and identified risk factors with Cox regression. RESULTS A total of 3489 consecutive participants were followed for a median of 4.19 years from initial mild-moderate dysplasia diagnosis. The median surveillance interval between index endoscopy and next follow-up endoscopy was 1.08 years, and more than half of patients had at least 3 surveillance gastroscopies. During the study period, the majority of participants did not show disease progression, either with dysplasia not detected (51.4%) or with persistent dysplasia (46.1%). There were 88 (2.9%) patients (5.13 per 1000 patient-years) who progressed to advanced neoplasia within a median of 4.3 years. The annual incidence of advanced neoplasia and GC were 0.43% and 0.26%, respectively, within 5 years of mild-moderate dysplasia diagnosis. Increasing age, male sex, moderate dysplasia, dysplasia detected in fundus or cardia at index endoscopy, and persistent Helicobacter pylori infection during follow-up were independent risk factors for developing advanced neoplasia. CONCLUSIONS Even in a country with high incidence of GC, the majority of patients with gastric mild-moderate dysplasia did not experience disease progression in the long term. Intensified surveillance during the first 5 years after mild-moderate dysplasia detection is suggested.
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Affiliation(s)
- Shiyu Xiao
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, Beijing China
| | - Haoping Lu
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, Beijing China
| | - Yan Xue
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, Beijing China
| | - Rongli Cui
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, Beijing China
| | - Lingmei Meng
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, Beijing China
| | - Zhu Jin
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, Beijing China
| | - Zhihao Yin
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, Beijing China
| | - Liya Zhou
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, Beijing China.
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Kong W, Liu Y, Huang C, Zhou L, Gao J, Turner NJ, Jiang Y. Direct Asymmetric Reductive Amination of Alkyl (Hetero)Aryl Ketones by an Engineered Amine Dehydrogenase. Angew Chem Int Ed Engl 2022; 61:e202202264. [DOI: 10.1002/anie.202202264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Indexed: 02/03/2023]
Affiliation(s)
- Weixi Kong
- School of Chemical Engineering and Technology Hebei University of Technology No. 8 Guangrong Road, Hongqiao District Tianjin 300130 China
| | - Yunting Liu
- School of Chemical Engineering and Technology Hebei University of Technology No. 8 Guangrong Road, Hongqiao District Tianjin 300130 China
| | - Chen Huang
- School of Chemical Engineering and Technology Hebei University of Technology No. 8 Guangrong Road, Hongqiao District Tianjin 300130 China
| | - Liya Zhou
- School of Chemical Engineering and Technology Hebei University of Technology No. 8 Guangrong Road, Hongqiao District Tianjin 300130 China
| | - Jing Gao
- School of Chemical Engineering and Technology Hebei University of Technology No. 8 Guangrong Road, Hongqiao District Tianjin 300130 China
| | - Nicholas J. Turner
- Department of Chemistry University of Manchester Manchester Institute of Biotechnology 131 Princess Street Manchester M1 7DN UK
| | - Yanjun Jiang
- School of Chemical Engineering and Technology Hebei University of Technology No. 8 Guangrong Road, Hongqiao District Tianjin 300130 China
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Kong W, Liu Y, Huang C, Zhou L, Gao J, Turner NJ, Jiang Y. Direct Asymmetric Reductive Amination of Alkyl (Hetero)Aryl Ketones by an Engineered Amine Dehydrogenase. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202264] [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: 11/06/2022]
Affiliation(s)
- Weixi Kong
- School of Chemical Engineering and Technology Hebei University of Technology No. 8 Guangrong Road, Hongqiao District Tianjin 300130 China
| | - Yunting Liu
- School of Chemical Engineering and Technology Hebei University of Technology No. 8 Guangrong Road, Hongqiao District Tianjin 300130 China
| | - Chen Huang
- School of Chemical Engineering and Technology Hebei University of Technology No. 8 Guangrong Road, Hongqiao District Tianjin 300130 China
| | - Liya Zhou
- School of Chemical Engineering and Technology Hebei University of Technology No. 8 Guangrong Road, Hongqiao District Tianjin 300130 China
| | - Jing Gao
- School of Chemical Engineering and Technology Hebei University of Technology No. 8 Guangrong Road, Hongqiao District Tianjin 300130 China
| | - Nicholas J. Turner
- Department of Chemistry University of Manchester Manchester Institute of Biotechnology 131 Princess Street Manchester M1 7DN UK
| | - Yanjun Jiang
- School of Chemical Engineering and Technology Hebei University of Technology No. 8 Guangrong Road, Hongqiao District Tianjin 300130 China
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Yin Z, Xiao S, Tian X, Yuan Z, Zhou L. The necessity and appropriate range of the diagnostic "gray zone" of 13C-urea breath test. Saudi J Gastroenterol 2022; 28:385-392. [PMID: 35259858 PMCID: PMC9752539 DOI: 10.4103/sjg.sjg_638_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND The 13C-urea breath test (13C-UBT) is preferred for non-invasive detection of Helicobacter pylori (H. pylori); however, its accuracy drops when results fall between 2‰ and 6‰ (called the gray zone). This study aimed to evaluate the accuracy of 13C-UBT (cut-off point 4‰) between 2‰ and 6‰, find a more appropriate gray zone, and identify the factors influencing 13C-UBT. METHODS Patients with 13C-UBT results 2‰-6‰, over an eight-year period, were studied. H. pylori infection was diagnosed if patients were positive for either Warthin-Starry staining or quantitative real-time polymerase chain reaction (real-time PCR), and excluded if both were negative. Accuracy of 13C-UBT under different cut-off points was calculated, and the factors affecting 13C-UBT were analyzed. RESULTS A total of 208 patients were included, of whom 129 were H. pylori-positive. Sensitivity, specificity, negative predictive value (NPV), and positive predictive value (PPV) of 13C-UBT were 71.32%, 83.54%, 64.08%, and 87.62%, respectively. When the cut-off point was changed to 2.15‰, the NPV of 13C-UBT reached a maximum (76.47%); when the cut-off point was changed to 4.95‰, PPV reached its maximum (93.22%). Therefore, the original gray zone (2‰-6‰) was adjusted to 2‰-4.95‰. Gastric antral intestinal metaplasia (OR = 3.055, 95% CI: 1.003-9.309) was an independent risk factor for false-negative 13C-UBT. CONCLUSIONS Accuracy of 13C-UBT over 2‰-6‰ was poor, and the gray zone was changed to 2‰-4.95‰. 13C-UBT results over 2‰-4.95‰ should be interpreted with caution during mass screening of H. pylori, especially for patients with gastric antral intestinal metaplasia.
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Affiliation(s)
- Zhihao Yin
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, Beijing, China
| | - Shiyu Xiao
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, Beijing, China
| | - Xueli Tian
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, Beijing, China
| | - Ziying Yuan
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Liya Zhou
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, Beijing, China,Address for correspondence: Prof. Liya Zhou, Department of Gastroenterology, Beijing Key Laboratory of Helicobacter Pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, Beijing, China. E-mail:
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50
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She PF, Xu LL, Liu YQ, Li ZH, Liu SS, Li YM, Zhou LY, Wu Y. [Perifosine inhibits biofilm formation of Pseudomonas aeruginosa by interacting with PqsE protein]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:192-196. [PMID: 35184449 DOI: 10.3760/cma.j.cn112150-20211020-00970] [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: 06/14/2023]
Abstract
To explore the biofilm inhibitory efficacy of perifosine against Pseudomonas aeruginosa (P. aeruginos) and its mechanisms. Twenty-fourwell plate was used to form biofilms at the bottom and crystal violet staining was used to determine the biofilm inhibitory effects of perifosine against P. aeruginosa, the wells without perifosine was set as control group. Glass tubes combined with crystal violet staining was used to detect the gas-liqud interface related bioiflm inhibitory effects of perifosine, the wells without perifosine was set as control group. Time-growth curved was used to detect the effects of perifosine on the bacteial planktonic cells growth of P. aeruginosa, the wells without perifosine was set as control group. The interaction model between perifosine and PqsE was assessed by molecular docking assay. The inhibitory effects of perifosine on the catalytic activity of PqsE was determined by detection the production of thiols, the wells without perifosine was set as control group. Binding affinity between perifosine and PqsE was detected by plasma surface resonance. The biofims at the bottom of the microplates and air-liquid interface were effectively inhibited by perifosine at the concentration of 4-8 μg/ml. There was no influence of perifosine on the cells growth of P. aeruginosa. The resuts of molecular docking assay indicates that perifosine could interacted with PqsE with the docking score of -10.67 kcal/mol. Perifosine could inhibit the catalytic activity of PqsE in a dose-dependent manner. The binding affinity between perifosine and PqsE was comfirmed by plasma surface resonance with KD of 6.65×10-5mol/L. Perifosine could inhibited the biofilm formation of P. aeruginosa by interacting with PqsE.
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Affiliation(s)
- P F She
- Department of Laboratory Medicine, Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - L L Xu
- Department of Laboratory Medicine, Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Y Q Liu
- Department of Laboratory Medicine, Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Z H Li
- Department of Laboratory Medicine, Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - S S Liu
- Department of Laboratory Medicine, Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Y M Li
- Department of Laboratory Medicine, Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - L Y Zhou
- Department of Laboratory Medicine, the First Hospital of Changsha, Changsha 410005, China
| | - Y Wu
- Department of Laboratory Medicine, the First Hospital of Changsha, Changsha 410005, China
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