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Song Z, Chi X, Dong S, Meng B, Yu X, Liu X, Zhou Y, Wang J. Carboxylated Hexagonal Boron Nitride/Graphene Configuration for Electrosynthesis of High-Concentration Neutral Hydrogen Peroxide. Angew Chem Int Ed Engl 2024; 63:e202317267. [PMID: 38158770 DOI: 10.1002/anie.202317267] [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: 11/13/2023] [Revised: 12/19/2023] [Accepted: 12/29/2023] [Indexed: 01/03/2024]
Abstract
The electrosynthesis of hydrogen peroxide (H2 O2 ) via two-electron (2e- ) oxygen (O2 ) reduction reaction (ORR) has great potential to replace the traditional energy-intensive anthraquinone process, but the design of low-cost and highly active and selective catalysts is greatly challenging for the long-term H2 O2 production under industrial relevant current density, especially under neutral electrolytes. To address this issue, this work constructed a carboxylated hexagonal boron nitride/graphene (h-BN/G) heterojunction on the commercial activated carbon through the coupling of B, N co-doping with surface oxygen groups functionalization. The champion catalyst exhibited a high 2e- ORR selectivity (>95 %), production rate (up to 13.4 mol g-1 h-1 ), and Faradaic efficiency (FE, >95 %). The long-term H2 O2 production under the high current density of 100 mA cm-2 caused the cumulative concentration as high as 2.1 wt %. The combination of in situ Raman spectra and theoretical calculation indicated that the carboxylated h-BN/G configuration promotes the adsorption of O2 and the stabilization of the key intermediates, allowing a low energy barrier for the rate-determining step of HOOH* release from the active site and thus improving the 2e- ORR performance. The fast dye degradation by using this electrochemical synthesized H2 O2 further illustrated the promising practical application.
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Affiliation(s)
- Zhixin Song
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Xiao Chi
- Department of Physics, National University of Singapore, Singapore, 117576, Singapore
| | - Shu Dong
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Biao Meng
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Xiaojiang Yu
- Singapore Synchrotron Light Source, National University of Singapore, 5 Research Link, Singapore, 117603, Singapore
| | - Xiaoling Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Yu Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Jun Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
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Cui J, Zhang Z, Yang L, Hu J, Jin A, Yang Z, Zhao Y, Meng B, Zhou Y, Wang J, Su Y, Wang J, Cui X, Xing H. A molecular sieve with ultrafast adsorption kinetics for propylene separation. Science 2024; 383:179-183. [PMID: 38096333 DOI: 10.1126/science.abn8418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 12/01/2023] [Indexed: 01/13/2024]
Abstract
The design of molecular sieves is vital for gas separation, but it suffers from a long-standing issue of slow adsorption kinetics due to the intrinsic contradiction between molecular sieving and diffusion within restricted nanopores. We report a molecular sieve ZU-609 with local sieving channels that feature molecular sieving gates and rapid diffusion channels. The precise cross-sectional cutoff of molecular sieving gates enables the exclusion of propane from propylene. The coexisting large channels constituted by sulfonic anions and helically arranged metal-organic architectures allow the fast adsorption kinetics of propylene, and the measured propylene diffusion coefficient in ZU-609 is one to two orders of magnitude higher than previous molecular sieves. Propylene with 99.9% purity is obtained through breakthrough experiments with a productivity of 32.2 L kg-1.
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Affiliation(s)
- Jiyu Cui
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310012, P.R. China
| | - Zhaoqiang Zhang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Lifeng Yang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310012, P.R. China
| | - Jianbo Hu
- Engineering Research Center of Functional Materials Intelligent Manufacturing of Zhejiang Province, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311215, P.R. China
| | - Anye Jin
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310012, P.R. China
| | - Zhenglu Yang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310012, P.R. China
| | - Yue Zhao
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P.R. China
| | - Biao Meng
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, P.R. China
| | - Yu Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, P.R. China
| | - Jun Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, P.R. China
| | - Yun Su
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, P.R. China
| | - Jun Wang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, P.R. China
| | - Xili Cui
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310012, P.R. China
- Engineering Research Center of Functional Materials Intelligent Manufacturing of Zhejiang Province, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311215, P.R. China
| | - Huabin Xing
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310012, P.R. China
- Engineering Research Center of Functional Materials Intelligent Manufacturing of Zhejiang Province, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311215, P.R. China
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Meng B, Qi Z, Li X, Peng H, Bi S, Wei X, Li Y, Zhang Q, Xu X, Zhao H, Yang X, Wang C, Zhao X. Characterization of Mu-Like Yersinia Phages Exhibiting Temperature Dependent Infection. Microbiol Spectr 2023; 11:e0020323. [PMID: 37466430 PMCID: PMC10434027 DOI: 10.1128/spectrum.00203-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 06/16/2023] [Indexed: 07/20/2023] Open
Abstract
Yersinia pestis is the etiological agent of plague. Marmota himalayana of the Qinghai-Tibetan plateau is the primary host of flea-borne Y. pestis. This study is the report of isolation of Mu-like bacteriophages of Y. pestis from M. himalayana. The isolation and characterization of four Mu-like phages of Y. pestis were reported, which were named as vB_YpM_3, vB_YpM_5, vB_YpM_6, and vB_YpM_23 according to their morphology. Comparative genome analysis revealed that vB_YpM_3, vB_YpM_5, vB_YpM_6, and vB_YpM_23 are phylogenetically closest to Escherichia coli phages Mu, D108 and Shigella flexneri phage SfMu. The role of LPS core structure of Y. pestis in the phages' receptor was pinpointed. All the phages exhibit "temperature dependent infection," which is independent of the growth temperature of the host bacteria and dependent of the temperature of phage infection. The phages lyse the host bacteria at 37°C, but enter the lysogenic cycle and become prophages in the chromosome of the host bacteria at 26°C. IMPORTANCE Mu-like bacteriophages of Y. pestis were isolated from M. himalayana of the Qinghai-Tibetan plateau in China. These bacteriophages have a unique temperature dependent life cycle, follow a lytic cycle at the temperature of warm-blooded mammals (37°С), and enter the lysogenic cycle at the temperature of its flea-vector (26°С). A switch from the lysogenic to the lytic cycle occurred when lysogenic bacteria were incubated from lower temperature to higher temperature (initially incubating at 26°C and shifting to 37°C). It is speculated that the temperature dependent lifestyle of bacteriophages may affect the population dynamics and pathogenicity of Y. pestis.
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Affiliation(s)
- Biao Meng
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
- Institute of Disease Control and Prevention, Chinese PLA, Beijing, China
| | - Zhizhen Qi
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Key Laboratory for Plague Prevention and Control of Qinghai Province, Xining, China
| | - Xiang Li
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Key Laboratory for Plague Prevention and Control of Qinghai Province, Xining, China
| | - Hong Peng
- Institute of Disease Control and Prevention, Chinese PLA, Beijing, China
| | - Shanzheng Bi
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
- Institute of Disease Control and Prevention, Chinese PLA, Beijing, China
| | - Xiao Wei
- Institute of Disease Control and Prevention, Chinese PLA, Beijing, China
| | - Yan Li
- Institute of Disease Control and Prevention, Chinese PLA, Beijing, China
| | - Qi Zhang
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Key Laboratory for Plague Prevention and Control of Qinghai Province, Xining, China
| | - Xiaoqing Xu
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Key Laboratory for Plague Prevention and Control of Qinghai Province, Xining, China
| | - Haihong Zhao
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Key Laboratory for Plague Prevention and Control of Qinghai Province, Xining, China
| | - Xiaoyan Yang
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Key Laboratory for Plague Prevention and Control of Qinghai Province, Xining, China
| | - Changjun Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
- Institute of Disease Control and Prevention, Chinese PLA, Beijing, China
| | - Xiangna Zhao
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
- Institute of Disease Control and Prevention, Chinese PLA, Beijing, China
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Wei X, Meng B, Li Y, Peng H, Zhao X. Sensitive and rapid detection of Culex pipiens and Aedes albopictus. Front Insect Sci 2023; 3:1015695. [PMID: 38469538 PMCID: PMC10926511 DOI: 10.3389/finsc.2023.1015695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 02/20/2023] [Indexed: 03/13/2024]
Abstract
Background Culex pipiens and Aedes albopictus are closely related to human life, and transmit a variety of viruses, causing serious harm to human health. Cytochrome c oxidase I (COI) gene has been selected as a marker gene for studying phylogeny and molecular evolution of species and is also an effective molecular marker for studying the evolutionary mechanism and systematic reconstruction of diptera insects. Methods A loop-mediated isothermal amplification (LAMP) method for the rapid and sensitive detection of Cx. pipiens and Ae. albopictus were first described in this study. The experimental results were verified by real-time PCR. Results Our study showed the lower limit of sample concentration that can be detected by LAMP method is 0.5 pg/μl within 20 min for Cx. pipiens, and 1 pg/μl within 20 min for Ae. albopictus, which were more sensitive than PCR method. Validation tests with field samples showed LAMP method had good specificity and sensitivity and could identify the target species quickly and accurately. Conclusion The LAMP method developed in this study allowed the rapid and sensitive detection of Cx. pipiens and Ae. albopictus, which will be expected to be used for mass screening in batches of the field.
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Affiliation(s)
- Xiao Wei
- Department of Pest Management, Centers for Disease Control and Prevention of People's Liberation Army (PLA), Beijing, China
| | - Biao Meng
- Department of Pest Management, Centers for Disease Control and Prevention of People's Liberation Army (PLA), Beijing, China
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
| | - Yan Li
- Department of Pest Management, Centers for Disease Control and Prevention of People's Liberation Army (PLA), Beijing, China
| | - Hong Peng
- Department of Pest Management, Centers for Disease Control and Prevention of People's Liberation Army (PLA), Beijing, China
| | - Xiangna Zhao
- Department of Pest Management, Centers for Disease Control and Prevention of People's Liberation Army (PLA), Beijing, China
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
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Wei X, Peng H, Li Y, Meng B, Wang S, Bi S, Zhao X. Pyrethroids exposure alters the community and function of the internal microbiota in Aedes albopictus. Ecotoxicol Environ Saf 2023; 252:114579. [PMID: 36706527 DOI: 10.1016/j.ecoenv.2023.114579] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/10/2023] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
Large amounts of insecticides bring selection pressure and then develop insecticide resistance in Aedes albopictus. This study demonstrated for the first time the effect of pyrethroid exposure on the internal microbiota in Ae. albopictus. 36, 48, 57 strains of virgin adult Ae. albopictus were exposed to the pyrethroids deltamethrin (Dme group), β-cypermethrin (Bcy group), and cis-permethrin (Cper group), respectively, with n-hexane exposure (Hex group) as the controls (n = 36). The internal microbiota community and functions were analyzed based on the metagenomic analysis. The analysis of similarity (ANOSIM) results showed that the Hex/Bcy (p = 0.001), Hex/Cper (p = 0.006), Hex/Dme (p = 0.001) groups were well separated, and the internal microbes of Ae. albopictus vary in the composition and functions depending on the type of pyrethroid insecticide they are applied. Four short chain fatty acid-producing genera, Butyricimonas, Prevotellaceae, Anaerococcus, Pseudorhodobacter were specifically absent in the pyrethroid-exposed mosquitoes. Morganella and Streptomyces were significantly enriched in cis-permethrin-exposed mosquitoes. Wolbachia and Chryseobacterium showed significant enrichment in β-cypermethrin-exposed mosquitoes. Pseudomonas was significantly abundant in deltamethrin-exposed mosquitoes. The significant proliferation of these bacteria may be closely related to insecticide metabolism. Our study recapitulated a specifically enhanced metabolic networks relevant to the exposure to cis-permethrin and β-cypermethrin, respectively. Benzaldehyde dehydrogenase (EC 1.2.1.28), key enzyme in aromatic compounds metabolism, was detected enhanced in cis-permethrin and β-cypermethrin exposed mosquitoes. The internal microbiota metabolism of aromatic compounds may be important influencing factors for pyrethroid resistance. Future work will be needed to elucidate the specific mechanisms by which mosquito microbiota influences host resistance and vector ability.
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Affiliation(s)
- Xiao Wei
- Centers for Disease Control and Prevention of PLA, Beijing, China
| | - Hong Peng
- Centers for Disease Control and Prevention of PLA, Beijing, China
| | - Yan Li
- Centers for Disease Control and Prevention of PLA, Beijing, China
| | - Biao Meng
- Centers for Disease Control and Prevention of PLA, Beijing, China; Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
| | - Shichao Wang
- Centers for Disease Control and Prevention of PLA, Beijing, China
| | - Shanzheng Bi
- Centers for Disease Control and Prevention of PLA, Beijing, China
| | - Xiangna Zhao
- Centers for Disease Control and Prevention of PLA, Beijing, China; Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China.
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Xiao F, Hu A, Meng B, Zhang Y, Han W, Su J. PVH-Peri5 Pathway for Stress-Coping Oromotor and Anxious Behaviors in Mice. J Dent Res 2023; 102:227-237. [PMID: 36303441 DOI: 10.1177/00220345221130305] [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] [Indexed: 01/24/2023] Open
Abstract
Stressful stimuli can activate the hypothalamic-pituitary-adrenal (HPA) axis. Clinically, it has been widely reported that stressful events are often accompanied by teeth clenching and bruxism, while mastication (chewing) can promote coping with stress. Trigeminal motoneurons in the trigeminal motor nucleus supplying the chewing muscles receive direct inputs from interneurons within the peritrigeminal premotor area (Peri5). Previous studies found that the paraventricular hypothalamic nucleus (PVH) participates in trigeminal activities during stressful events. However, the neural pathway by which the stress-induced oral movements alleviate stress is largely unknown. We hypothesized that paraventricular-trigeminal circuits might be associated with the stress-induced chewing movements and anxiety levels. First, we observed the stress-coping effect of wood gnawing on stress-induced anxiety, with less anxiety-like behaviors seen in the open field test and elevated plus maze, as well as decreased corticosterone and blood glucose levels, in response to stress in mice. We then found that excitotoxic lesions of PVH reduced the effect of gnawing on stress, reflected in more anxiety-like behaviors; this emphasizes the importance of the PVH in stress responses. Anterograde, retrograde, transsynaptic, and nontranssynaptic tracing through central and peripheral injections confirmed monosynaptic projections from PVH to Peri5. We discovered that PVH receives proprioceptive sensory inputs from the jaw muscle and periodontal ligaments, as well as provides motor outputs via the mesencephalic trigeminal nucleus (Me5) and Peri5. Next, pathway-specific functional manipulation by chemogenetic inhibition was conducted to further explore the role of PVH-Peri5 monosynaptic projections. Remarkably, PVH-Peri5 inhibition decreased gnawing but did not necessarily reduce stress-induced anxiety. Moreover, neuropeptide B (NPB) was expressed in Peri5-projecting PVH neurons, indicating that NPB signaling may mediate the effects of PVH-Peri5. In conclusion, our data revealed a PVH-Peri5 circuit that plays a role in the stress response via its associations with oromotor movements and relative anxiety-like behaviors.
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Affiliation(s)
- F Xiao
- Department of Prosthodontics, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - A Hu
- Department of Prosthodontics, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - B Meng
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA, USA.,Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
| | - Y Zhang
- Department of Prosthodontics, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - W Han
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York City, NY, USA
| | - J Su
- Department of Prosthodontics, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
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Qi Z, Meng B, Wei X, Li X, Peng H, Li Y, Feng Q, Huang Y, Zhang Q, Xu X, Zhao H, Yang X, Wang C, Zhao X. Identification and characterization of P2-like bacteriophages of Yersinia pestis. Virus Res 2022; 322:198934. [PMID: 36169047 DOI: 10.1016/j.virusres.2022.198934] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 09/09/2022] [Accepted: 09/19/2022] [Indexed: 12/24/2022]
Abstract
Yersinia pestis is the cause of plague, historically known as the "Black Death". Marmota himalayana in the Qinghai-Tibet Plateau (QTP) natural plague focus is the primary host in China. Although several phages originating from Y. pestis have been characterized. This is the first report of isolation of P2-like phages of Y. pestis from M. himalayana. In this study, the isolation and characterization of three P2-like phages of Y. pestis were reported, which were named as vB_YpM_22, vB_YpM_46 and vB_YpM_50. Comparative genome analysis revealed that vB_YpM_22, vB_YpM_46 and vB_YpM_50 are members of the nonlambdoid P2 family, and are highly similar and collinear with enterobacteriophage P2, plague diagnostic phage L-413C and enterobacteriophage fiAA91-ss. The role of LPS core structure of Y. pestis in the phages' receptor was pinpointed. The findings of this study contribute an advance in our current knowledge of Y. pestis phages and will also play a key role in understanding the evolution of Y. pestis phages.
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Affiliation(s)
- Zhizhen Qi
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Key Laboratory for Plague Prevention and Control of Qinghai Province, Xining, China
| | - Biao Meng
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China; Institute of Disease Control and Prevention, Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - Xiao Wei
- Institute of Disease Control and Prevention, Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - Xiang Li
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Key Laboratory for Plague Prevention and Control of Qinghai Province, Xining, China
| | - Hong Peng
- Institute of Disease Control and Prevention, Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - Yan Li
- Institute of Disease Control and Prevention, Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - Qunling Feng
- PLA 63750 Military Hospital, Xi'an, Shaanxi, China
| | - Yanan Huang
- PLA 63750 Military Hospital, Xi'an, Shaanxi, China
| | - Qi Zhang
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Key Laboratory for Plague Prevention and Control of Qinghai Province, Xining, China
| | - Xiaoqing Xu
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Key Laboratory for Plague Prevention and Control of Qinghai Province, Xining, China
| | - Haihong Zhao
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Key Laboratory for Plague Prevention and Control of Qinghai Province, Xining, China
| | - Xiaoyan Yang
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Key Laboratory for Plague Prevention and Control of Qinghai Province, Xining, China
| | - Changjun Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China; Institute of Disease Control and Prevention, Chinese PLA Center for Disease Control and Prevention, Beijing, China.
| | - Xiangna Zhao
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China; Institute of Disease Control and Prevention, Chinese PLA Center for Disease Control and Prevention, Beijing, China.
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Wei X, Meng B, Peng H, Li Y, Liu M, Si H, Wu R, Chen H, Bai Y, Feng Q, Wang C, Zhao X. Correction to: Hemorrhagic fever with renal syndrome caused by destruction of residential area of rodent in a construction site: epidemiological investigation. BMC Infect Dis 2022; 22:896. [PMID: 36451128 PMCID: PMC9710126 DOI: 10.1186/s12879-022-07767-8] [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: 12/12/2022] Open
Affiliation(s)
- Xiao Wei
- grid.488137.10000 0001 2267 2324Centers for Disease Control and Prevention of PLA, Beijing, China
| | - Biao Meng
- grid.488137.10000 0001 2267 2324Centers for Disease Control and Prevention of PLA, Beijing, China ,grid.186775.a0000 0000 9490 772XDepartment of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
| | - Hong Peng
- grid.488137.10000 0001 2267 2324Centers for Disease Control and Prevention of PLA, Beijing, China
| | - Yan Li
- grid.488137.10000 0001 2267 2324Centers for Disease Control and Prevention of PLA, Beijing, China ,PLA 63750 Military Hospital, Xi’an, Shaanxi China
| | - Min Liu
- PLA 63750 Military Hospital, Xi’an, Shaanxi China
| | - Hairui Si
- PLA 63750 Military Hospital, Xi’an, Shaanxi China
| | - Rui Wu
- grid.508393.4Xi’an Center for Disease Control and Prevention, Xi’an, Shaanxi China
| | - Hailong Chen
- grid.508393.4Xi’an Center for Disease Control and Prevention, Xi’an, Shaanxi China
| | - Ying Bai
- PLA 63750 Military Hospital, Xi’an, Shaanxi China
| | - Qunling Feng
- PLA 63750 Military Hospital, Xi’an, Shaanxi China
| | - Changjun Wang
- grid.488137.10000 0001 2267 2324Centers for Disease Control and Prevention of PLA, Beijing, China ,grid.186775.a0000 0000 9490 772XDepartment of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
| | - Xiangna Zhao
- grid.488137.10000 0001 2267 2324Centers for Disease Control and Prevention of PLA, Beijing, China ,grid.186775.a0000 0000 9490 772XDepartment of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
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Meng B, Dohopolski M, Bai T, Jiang S, Cai B, Lin M. Quantifying AI Assisted Auto-Segmentations Performance for a Clinical Online Adaptive Radiotherapy System in Multiple Treatment Sites. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.2280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Gonzalez Y, Meng B, Parsons D, Hrycushko B, Zhuang T, Cai B, Zhang Y, Westover K, Lin M, Iyengar P. Initial Clinical Experience of CBCT-Based Adaptive Online Radiotherapy for SAbR of Thoracic Malignancies. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.2276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Zhao H, Meng B, Dohopolski M, Choi B, Liang X, Bai T, Nguyen D, Cai B, Lin M, Jiang S. Segmentation of Targets and Organs at Risk for CBCT-Based Online Adaptive Radiotherapy Using Recurrent Neural Networks: A Clinical Evaluation. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.2197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Wei X, Meng B, Peng H, Li Y, Liu M, Si H, Wu R, Chen H, Bai Y, Li Y, Feng Q, Wang C, Zhao X. Hemorrhagic fever with renal syndrome caused by destruction of residential area of rodent in a construction site: epidemiological investigation. BMC Infect Dis 2022; 22:761. [PMID: 36175847 PMCID: PMC9521858 DOI: 10.1186/s12879-022-07744-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 09/20/2022] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND An outbreak of hemorrhagic fever with renal syndrome (HFRS), caused by a Hantavirus, affected nine adult males in the southwest area of Xi'an in November 2020 was analyzed in this study. METHODS Clinical and epidemiological data of HFRS patients in this outbreak were retrospectively analyzed. The whole genome of a hantavirus named 201120HV03xa (hv03xa for short) isolated from Apodemus agrarius captured in the construction site was sequenced and analyzed. In addition, nine HFRS patients were monitored for the IgG antibody against the HV N protein at 6 and 12 months, respectively. RESULTS In this study, inhalation of aerosolized excreta and contaminated food may be the main source of infection. Genome analysis and phylogenetic analysis showed that hv03xa is a reassortment strain of HTNV, having an S segment related to A16 of HTN 4, an M segment related to Q37 and Q10 of HTN 4, and an L segment related to prototype strain 76-118 of HTN 7. Potential recombination was detected in the S segment of hv03xa strain. The anti-HV-IgG level of all the patients persist for at least one year after infection. CONCLUSIONS This report documented an HFRS outbreak in Xi'an, China, which provided the basic data for epidemiological surveillance of endemic HTNV infection and facilitated to predict disease risk and implement prevention measures.
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Affiliation(s)
- Xiao Wei
- Centers for Disease Control and Prevention of PLA, Beijing, China
| | - Biao Meng
- Centers for Disease Control and Prevention of PLA, Beijing, China.,Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
| | - Hong Peng
- Centers for Disease Control and Prevention of PLA, Beijing, China
| | - Yan Li
- Centers for Disease Control and Prevention of PLA, Beijing, China
| | - Min Liu
- PLA 63750 Military Hospital, Xi'an, Shaanxi, China
| | - Hairui Si
- PLA 63750 Military Hospital, Xi'an, Shaanxi, China
| | - Rui Wu
- Xi'an Center for Disease Control and Prevention, Xi'an, Shaanxi, China
| | - Hailong Chen
- Xi'an Center for Disease Control and Prevention, Xi'an, Shaanxi, China
| | - Ying Bai
- PLA 63750 Military Hospital, Xi'an, Shaanxi, China
| | - Yan Li
- PLA 63750 Military Hospital, Xi'an, Shaanxi, China
| | - Qunling Feng
- PLA 63750 Military Hospital, Xi'an, Shaanxi, China.
| | - Changjun Wang
- Centers for Disease Control and Prevention of PLA, Beijing, China. .,Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China.
| | - Xiangna Zhao
- Centers for Disease Control and Prevention of PLA, Beijing, China. .,Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China.
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13
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Meng B, Fu QS, Chen XH, Gong GS, Chakrabarti C, Wang YQ, Yuan SL. Effect of Al substitution on the magnetization reversal and complex magnetic properties of NiCr 2O 4 ceramics. Phys Chem Chem Phys 2022; 24:4925-4934. [PMID: 35137749 DOI: 10.1039/d1cp05091e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of polycrystalline NiCr2-xAlxO4 (0.1 ≤ x ≤ 0.25) spinel ceramics have been synthesized using a sol-gel method. DC magnetization measurements are carried out at different temperatures and magnetic fields. A novel magnetization reversal has been observed in the field cooling process for the x = 0.2 sample, which can be ascribed to the competition between two magnetic sublattices due to their different temperature dependences. The magnetic interaction evolution, related to the complex magnetic properties, is revealed by exchange constants that have been estimated according to ferrimagnetic Curie-Weiss fitting and mean field theory. The fitting result confirmed the evolution of antiferromagnetic and ferromagnetic components with Al substitution, which is supported by the observations from the isothermal magnetization measurements. The positive and negative values of the magnetic moment can be utilized for storage applications based on the results of magnetic switching effect measurements.
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Affiliation(s)
- B Meng
- School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China.
| | - Q S Fu
- School of Mechanics and Photoelectric Physics, Anhui University of Science and Technology, Huainan 232001, People's Republic of China
| | - X H Chen
- School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China.
| | - G S Gong
- School of Physics and Electronic Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, People's Republic of China.,Henan Key Laboratory of Magnetoelectronic Information Functional Materials, Zhengzhou 450002, People's Republic of China
| | - C Chakrabarti
- Microwave Laboratory, Department of Physics, Indian Institution of Technology Madras, Chennai 600036, India
| | - Y Q Wang
- School of Physics and Electronic Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, People's Republic of China.,Henan Key Laboratory of Magnetoelectronic Information Functional Materials, Zhengzhou 450002, People's Republic of China
| | - S L Yuan
- School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China.
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Liu YQ, Gong K, Li XQ, Wen XY, An ZH, Cai C, Chang Z, Chen G, Chen C, Du YY, Gao M, Gao R, Guo DY, He JJ, Hou DJ, Li YG, Li CY, Li G, Li L, Li XF, Li MS, Liang XH, Liu XJ, Lu FJ, Lu H, Meng B, Peng WX, Shi F, Sun XL, Wang H, Wang JZ, Wang YS, Wang HZ, Wen X, Xiao S, Xiong SL, Xu YB, Xu YP, Yang S, Yang JW, Yi QB, Zhang F, Zhang DL, Zhang SN, Zhang CY, Zhang CM, Zhang F, Zhao XY, Zhao Y, Zhou X. The data acquisition algorithm designed for the SiPM-based detectors of GECAM satellite. Radiat Detect Technol Methods 2022. [DOI: 10.1007/s41605-021-00311-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Jiang H, Shang X, Zhang C, Yue J, Duan X, Ma Z, Chen C, Zhang W, Pang Q, Zhang W, Liu L, Ren X, Meng B, Zhao G, Zhang P, Wei Y, Ma Y, Zhang L, Li Y. 166TiP Pembrolizumab combined with neoadjuvant chemotherapy versus neoadjuvant chemoradiotherapy followed surgery for locally advanced esophageal squamous cell carcinoma: Protocol for a multi-center, prospective, randomized-controlled, phase III clinical study (Keystone-002). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.10.185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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16
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Shang X, Zhang C, Zhao G, Zhang W, Liu L, Duan X, Yue J, Ma Z, Chen C, Meng B, Ren X, Jiang H. LBA3 Safety and efficacy of pembrolizumab combined with paclitaxel and cisplatin as a neoadjuvant treatment for locally advanced resectable (stage III) esophageal squamous cell carcinoma (Keystone-001): Interim analysis of a prospective, single-arm, single-center, phase II trial. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.10.218] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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17
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Meng B, Han F, Gao B, Zhuang H, Zhang XZ, Wang YJ, Zhang M. [Effects of LINC00839 targeting miR-3666 on proliferation, migration and invasion of hepatocellular carcinoma cells]. Zhonghua Zhong Liu Za Zhi 2021; 43:1148-1155. [PMID: 34794216 DOI: 10.3760/cma.j.cn112152-20200222-00116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effects of lncRNA LINC00839 on the proliferation, migration and invasion of hepatocellular carcinoma cells and its mechanism. Methods: Real-time quantitative polymerase chain reaction (RT-qPCR) was used to detect the expression of LINC00839 and miR-3666 in hepatocellular carcinoma tissues and adjacent tissues. Pearson correlation was used to analyze the correlation between LINC00839 and miR-3666 expression in liver cancer tissues. Hepatocellular carcinoma cells MHCC97H were cultured in vitro and divided into si-NC group, si-LINC00839 group, miR-NC group, miR-3666 group, si-LINC00839+ anti-miR-NC group, and si-LINC00839+ anti-miR-3666 group. Methylthiazoletrazolium (MTT) method and clone formation experiment were used to detect cell proliferation. Transwell array was used to detect the cell migration and invasion. Western blot was used to detect the protein expressions of p21, E-cadherin and MMP-2. The double luciferase reporter gene experiment was used to verify the regulatory relationship between LINC00839 and miR-3666. Results: Compared with adjacent tissues, the expression level of LINC00839 in hepatocellular carcinoma tissues increased (2.82±0.27 vs. 0.96±0.10, P<0.001), but the expression level of miR-3666 decreased (0.23±0.02 vs. 1.01±0.10, P<0.001). The expression levels of LINC00839 and miR-3666 in liver cancer tissue were negatively correlated (r=-0.658, P<0.001). The survival rate of MHCC97H cells in the si-LINC00839 group [(53.91±5.41)% vs. (100.53±10.22)%], the number of clones formed (92.0±8.0 vs. 164.0±14.3), the number of migration (131.0±12.7 vs. 247.0±22.4), the number of invasion (66.0±6.4 vs. 120.0±11.6) and the protein level of MMP-2 (0.20±0.02 vs. 0.67±0.06) were lower than those in the si-NC group (P<0.001). However, the protein levels of p21 (0.76±0.07 vs. 0.25±0.02) and E-cadherin (0.78±0.08 vs. 0.14±0.01) were higher than those in the si-NC group (P<0.001). LINC00839 targeted and negatively regulated the expression of miR-3666. The survival rate of MHCC97-H cells in the miR-3666 group [(47.93±4.86)% vs. (100.11±10.21)%], the number of clone formation (78.0±7.7 vs. 166.0±15.9), the number of migration (117.0±12.1 vs. 250.0±25.0), the number of invasion (57.0±5.7 vs. 121.0±12.3) and the protein level of MMP-2 (0.16±0.01 vs. 0.69±0.07) were lower than those in the miR-NC group (all P<0.001). However, the protein levels of p21 (0.83±0.08 vs. 0.24±0.02) and E-cadherin (0.87±0.09 vs. 0.13±0.01)were higher than those in the miR-NC group (all P<0.001). The survival rate of MHCC97-H cells in the si-LINC00839+ anti-miR-3666 group [(89.94±9.05)% vs. (54.12±5.39)%], the number of clones (143.0±13.8 vs. 94.0±9.4), the number of migration (208.0±19.8 vs. 129.0±12.6), the number of invasion (108.0±10.1 vs. 65.0±6.4) and the protein level of MMP-2 (0.31±0.03 vs 0.66±0.06) were higher than those in the si-LINC00839+ anti-miR-NC group (P<0.001). However, the protein levels of p21 (0.31±0.03 vs. 0.74±0.07) and E-cadherin (0.28±0.03 vs. 0.80±0.08) were lower than those int the si-LINC00839+ anti-miR-NC group (P<0.001). Conclusion: Inhibition of LINC00839 expression may inhibit the proliferation, migration and invasion of hepatocellular carcinoma cells by targeting up-regulation of miR-3666 expression.
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Affiliation(s)
- B Meng
- Hepatobiliary and Pancreatic Surgery, Cancer Hospital, Zhengzhou University, Zhengzhou 450000, China
| | - F Han
- Hepatobiliary and Pancreatic Surgery, Cancer Hospital, Zhengzhou University, Zhengzhou 450000, China
| | - B Gao
- Hepatobiliary and Pancreatic Surgery, Cancer Hospital, Zhengzhou University, Zhengzhou 450000, China
| | - H Zhuang
- Hepatobiliary and Pancreatic Surgery, Cancer Hospital, Zhengzhou University, Zhengzhou 450000, China
| | - X Z Zhang
- Hepatobiliary and Pancreatic Surgery, Cancer Hospital, Zhengzhou University, Zhengzhou 450000, China
| | - Y J Wang
- Hepatobiliary and Pancreatic Surgery, Cancer Hospital, Zhengzhou University, Zhengzhou 450000, China
| | - M Zhang
- Hepatobiliary and Pancreatic Surgery, Cancer Hospital, Zhengzhou University, Zhengzhou 450000, China
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Li XQ, Wen XY, An ZH, Cai C, Chang Z, Chen G, Chen C, Du YY, Gao M, Gao R, Gong K, Guo DY, He JJ, Hou DJ, Li YG, Li CY, Li G, Li L, Li XF, Li MS, Liang XH, Liu XJ, Liu YQ, Lu FJ, Lu H, Meng B, Peng WX, Shi F, Sun XL, Wang H, Wang JZ, Wang YS, Wang HZ, Wen X, Xiao S, Xiong SL, Xu YB, Xu YP, Yang S, Yang JW, Yi QB, Zhang DL, Zhang F, Zhang SN, Zhang CY, Zhang CM, Zhang F, Zhao XY, Zhao Y, Zhou X, Zhang CS, Yu JP, Chang L, Zhang KK, Huang J, Chen YM, Han XB. The technology for detection of gamma-ray burst with GECAM satellite. Radiat Detect Technol Methods 2021. [DOI: 10.1007/s41605-021-00288-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Zhang Y, Meng B, Wei X, Li Y, Wang X, Zheng Y, Wang C, Cui L, Zhao X. Evaluation of Phage Therapy for Pulmonary Infection of Mouse by Liquid Aerosol-Exposure Pseudomonas aeruginosa. Infect Drug Resist 2021; 14:4457-4469. [PMID: 34737586 PMCID: PMC8558430 DOI: 10.2147/idr.s326230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 10/12/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Pseudomonas aeruginosa is an important nosocomial infectious bacterium, more and more multidrug resistant P. aeruginosa have been isolated and posed severe challenges to clinical antibiotic treatment, bringing additional morbidity, mortality, and economic burden. Bacteriophages can lyse bacteria specificity and are feasible alternatives to antibiotics. METHODS A Pseudomonas aeruginosa-infecting phage vB_PaeP_PA01EW was isolated. Phage plaque assays, transmission electron microscopy, host-range determination, infection assay analyses, whole-genome sequencing and annotation were performed for the phage. Mice pneumonia model using liquid aerosol-exposure Pseudomonas aeruginosa was established, and phage therapy was evaluated. RESULTS vB_PaeP_PA01EW belongs to the family Podoviridae according to transmission electron microscopy and was identified as a Luz24likevirus according to the genome analysis. For the phage therapy, compared with the bacteria-infected group, the phage-rescue group has some characteristics. First, adventitial edema and diffuse infiltration of inflammatory cells in tissues were alleviated, Second, bronchial epithelial cell proliferation was reduced. Third, the bacterial burden was significantly decreased. CONCLUSION This study provided data support and theoretical basis for the clinical application of bacteriophages. It has important guiding significance and reference value for the application of bacteriophage therapy of other pathogenic bacteria.
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Affiliation(s)
- Yajun Zhang
- Department of Gastroenterology, The Sixth Medical Center of PLA General Hospital, Beijing, People’s Republic of China
| | - Biao Meng
- Centre for Disease Control and Prevention of China PLA, Beijing, People’s Republic of China
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, People’s Republic of China
| | - Xiao Wei
- Centre for Disease Control and Prevention of China PLA, Beijing, People’s Republic of China
| | - Yan Li
- Centre for Disease Control and Prevention of China PLA, Beijing, People’s Republic of China
| | - Xiaohui Wang
- Department of Gastroenterology, The Sixth Medical Center of PLA General Hospital, Beijing, People’s Republic of China
| | - Yan Zheng
- Department of Gastroenterology, The Sixth Medical Center of PLA General Hospital, Beijing, People’s Republic of China
| | - Changjun Wang
- Centre for Disease Control and Prevention of China PLA, Beijing, People’s Republic of China
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, People’s Republic of China
| | - Lihong Cui
- Department of Gastroenterology, The Sixth Medical Center of PLA General Hospital, Beijing, People’s Republic of China
| | - Xiangna Zhao
- Centre for Disease Control and Prevention of China PLA, Beijing, People’s Republic of China
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, People’s Republic of China
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20
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Meng B, Sheng M, Qu XP, Wang SX, Zhang H. [A case of bicuspid aortic valve malformation combined with Turner syndrome]. Zhonghua Xin Xue Guan Bing Za Zhi 2021; 49:818-821. [PMID: 34404194 DOI: 10.3760/cma.j.cn112148-20210707-00576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- B Meng
- Department of Cardiac Surgery, Children's Hospital Affiliated to the Capital Institute of Paediatrics, Beijing 100020, China
| | - M Sheng
- Department of Cardiac Surgery, Children's Hospital Affiliated to the Capital Institute of Paediatrics, Beijing 100020, China
| | - X P Qu
- Department of Cardiac Surgery, Children's Hospital Affiliated to the Capital Institute of Paediatrics, Beijing 100020, China
| | - S X Wang
- Department of Cardiac Surgery, Children's Hospital Affiliated to the Capital Institute of Paediatrics, Beijing 100020, China
| | - H Zhang
- Department of Cardiac Surgery, Children's Hospital Affiliated to the Capital Institute of Paediatrics, Beijing 100020, China
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Yang X, Chen S, Qi Y, Xu XY, Guan X, Yang YC, Liu YX, Guo YH, Gong WC, Gao YN, Wang XH, Li W, Li LF, Fu K, Zhang HL, Meng B. [Research of prognostic immunophenotypes in 163 patients of diffuse large B-cell lymphoma]. Zhonghua Xue Ye Xue Za Zhi 2021; 42:487-494. [PMID: 34384155 PMCID: PMC8295611 DOI: 10.3760/cma.j.issn.0253-2727.2021.06.008] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
目的 筛选并分析与弥漫大B细胞淋巴瘤(DLBCL)预后相关的免疫表型,探究其预后价值。 方法 选取天津医科大学肿瘤医院2011年1月至2016年12月收治的163例DLBCL患者,免疫组织化学染色检测DLBCL常见免疫表型,COX模型探索独立于国际预后指数(IPI)影响总生存(OS)与无进展生存(PFS)的免疫表型,并分析其两两联合表达对预后的影响。 结果 多因素分析显示BCL6阴性(PFS:HR=1.652,95% CI 1.030~2.649,P=0.037)、P53阳性(OS:HR=1.842,95% CI 1.008~3.367,P=0.047)、BCL2强阳性(OS:HR=2.102,95%CI 1.249~3.537,P=0.005;PFS:HR=2.126,95% CI 1.312~3.443,P=0.002)是DLBCL中独立于IPI的预后不良因素。亚组分析显示,在年龄≤60岁组患者中BCL6阴性(PFS:HR=2.042,95%CI 1.021~4.081,P=0.043)、P53阳性(OS:HR=3.069,95% CI 1.244~7.569,P=0.015)和BCL2强阳性(OS:HR=2.433,95% CI 1.165~5.082,P=0.018;PFS:HR=3.209,95%CI 1.606~6.410,P=0.001)对预后影响显著;在IPI 0~2分亚组患者中,BCL6阴性(OS:HR=2.467,95%CI 1.322~4.604,P=0.005;PFS:HR=2.248,95%CI 1.275~3.965,P=0.005)和BCL2强阳性(PFS:HR=2.045,95%CI 1.119~3.735,P=0.020)对预后影响显著。BCL6和BCL2强阳性的联合表达与DLBCL的预后相关(P=0.005和P<0.001),BCL6阳性/BCL2非强阳性(86例)预后最好[3年OS率(71.6±4.9)%,3年PFS率(67.0±5.1)%],BCL6阴性/BCL2强阳性(10例)预后最差[3年OS率(20.0±12.6)%,3年PFS率(10.0±9.5)%];BCL6、P53的联合表达与DLBCL的预后差异无统计学意义(P=0.061和P=0.089),但生存曲线显示BCL6阳性/P53阴性的病例(98例)预后较好[3年OS率(70.6±4.7)%,3年PFS率(64.6±4.9)%];BCL2强阳性、P53的联合表达与DLBCL的预后显著相关(P<0.001和P<0.001),BCL2强阳性/P53阳性的病例(5例)预后最差(3年OS率和PFS率均为0);无论BCL6与P53表达如何,BCL2强阳性的病例预后均比非强阳性病例差。 结论 BCL6阴性、P53阳性、BCL2强阳性三种免疫表型单独及联合表达对DLBCL尤其是年龄≤60岁和IPI 0~2分患者的预后预测具有一定价值。
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Affiliation(s)
- X Yang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Pathology, Tianjin Medical University Cancer Institute andHospital, Tianjin 300060, China
| | - S Chen
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Pathology, Tianjin Medical University Cancer Institute andHospital, Tianjin 300060, China
| | - Y Qi
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Pathology, Tianjin Medical University Cancer Institute andHospital, Tianjin 300060, China
| | - X Y Xu
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Pathology, Tianjin Medical University Cancer Institute andHospital, Tianjin 300060, China
| | - X Guan
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Pathology, Tianjin Medical University Cancer Institute andHospital, Tianjin 300060, China
| | - Y C Yang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Pathology, Tianjin Medical University Cancer Institute andHospital, Tianjin 300060, China
| | - Y X Liu
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Pathology, Tianjin Medical University Cancer Institute andHospital, Tianjin 300060, China
| | - Y H Guo
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Pathology, Tianjin Medical University Cancer Institute andHospital, Tianjin 300060, China
| | - W C Gong
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Pathology, Tianjin Medical University Cancer Institute andHospital, Tianjin 300060, China
| | - Y N Gao
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Pathology, Tianjin Medical University Cancer Institute andHospital, Tianjin 300060, China
| | - X H Wang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Lymphoma, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China
| | - W Li
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Lymphoma, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China
| | - L F Li
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Lymphoma, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China
| | - K Fu
- Department of Pathology, Roswell Park Cancer Institute, Buffalo, New York, USA
| | - H L Zhang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Lymphoma, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China
| | - B Meng
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Pathology, Tianjin Medical University Cancer Institute andHospital, Tianjin 300060, China
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Guan X, Yang YC, Qi Y, Gong WC, Xu XY, Wang YL, Guo YH, Luo Y, Sun L, Fu K, Meng B. [Clinicopathological features of intravascular peripheral T-cell lymphoma]. Zhonghua Xue Ye Xue Za Zhi 2021; 42:583-590. [PMID: 34455746 PMCID: PMC8408497 DOI: 10.3760/cma.j.issn.0253-2727.2021.07.009] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Indexed: 11/24/2022]
Abstract
Objective: To summarize the clinical and pathological features of intravascular NK and T cell lymphoma for better understanding of such disease to reduce misdiagnosis and miss-diagnosis. Methods: Clinical and pathological features were analyzed retrospectively in one case of intravascular peripheral T-cell lymphoma, not otherwise specified (IVPTCL, NOS) , with literatures review. Results: The case presented in this study was a 66-year-old man. PET/CT scan showed multiple lymph nodes enlargement throughout the body. Normal lymph node structure could not be observed by tissue biopsy, while lymph follicles were partially disrupted. High-power light microscope revealed a large number of blood vessels with diffuse proliferation and dilation, where atypical lymphoid cell mass was restricted in the lumen and partially infiltrated the large blood vessel wall. These tumor cells were medium to large with moderate cytoplasm. The nucleus was irregular, single or multiple nucleoli could be seen, chromatin was condensed, some were empty and bright, and mitotic figures could be seen. Immunohistochemical staining showed that the neoplastic cells were positive for expression of CD3, CD43, CD8, GrB, TIA-1 and perforin. EBER in situ hybridization result was negative. Polymerase chain reaction test identified a clonal gene rearrangement of T-cell receptor γ. The patient was treated with CHOP in combination with chidamide, but died of infection and cardiopulmonary failure within 2 months. 56 cases of intravascular NK/T cell lymphoma with definite classification were collected from relevant literatures, including 47 cases with nasal type of extranodal NK/T cell lymphoma (27 were male and 20 were female) , 8 cases with anaplastic large cell lymphoma (3 males and 5 females) , and only one case with de nova IVPTCL, NOS in brain. We report the second case of IVPTCL,NOS, and notably originated from lymph node for the first time. Conclusions: Intravascular NK/T cell lymphoma is a highly aggressive disease with no effective treatment at present. Involvement of Lymph node has rarely been reported, and further studies on more cases are necessary.
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Affiliation(s)
- X Guan
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Pathology, Tianjin Medical University Cancer Institute and Hospital Tianjin 300060, China
| | - Y C Yang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Pathology, Tianjin Medical University Cancer Institute and Hospital Tianjin 300060, China
| | - Y Qi
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Pathology, Tianjin Medical University Cancer Institute and Hospital Tianjin 300060, China
| | - W C Gong
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Pathology, Tianjin Medical University Cancer Institute and Hospital Tianjin 300060, China
| | - X Y Xu
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Pathology, Tianjin Medical University Cancer Institute and Hospital Tianjin 300060, China
| | - Y L Wang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Pathology, Tianjin Medical University Cancer Institute and Hospital Tianjin 300060, China
| | - Y H Guo
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Pathology, Tianjin Medical University Cancer Institute and Hospital Tianjin 300060, China
| | - Y Luo
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Pathology, Tianjin Medical University Cancer Institute and Hospital Tianjin 300060, China
| | - L Sun
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Pathology, Tianjin Medical University Cancer Institute and Hospital Tianjin 300060, China
| | - K Fu
- Department of Pathology, Roswell Park Cancer Institute, Buffalo, New York
| | - B Meng
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China Department of Pathology, Tianjin Medical University Cancer Institute and Hospital Tianjin 300060, China
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Byrd BK, Wirth DJ, Meng B, Strawbridge RS, Davis SC. A hyperspectral approach for recovering agent excretion biodistributions using whole-body fluorescence cryo-imaging. Proc SPIE Int Soc Opt Eng 2021; 11625. [PMID: 34177040 DOI: 10.1117/12.2582534] [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] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Understanding the uptake and clearance kinetics of new drugs and contrast agents is an important aspect of drug development that typically involves a combination of imaging and analysis of harvested organs. Although these techniques are well-established and can be quantitative, they generally do not preserve high resolution biodistribution information. In this context, fluorescence whole-body cryo-imaging is a promising technique for recovering 3D drug/agent biodistributions at a high resolution throughout an entire study animal at specific time points. A common challenge associated with fluorescence imaging in tissue is that agent signal can be confounded by endogenous fluorescence signal which is often observed in the visible window. One method to address this issue is to acquire hyperspectral images and spectrally unmix agent signal from confounding autofluorescence signals using known spectral bases. Herein, we apply hyperspectral whole-body cryo-imaging and spectral unmixing to examine the distribution of multiple fluorescent agents in excretion organ regions.
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Affiliation(s)
- B K Byrd
- Thayer School of Engineering at Dartmouth College, 14 Engineering Dr. Hanover, NH, 03755
| | - D J Wirth
- Thayer School of Engineering at Dartmouth College, 14 Engineering Dr. Hanover, NH, 03755
| | - B Meng
- Thayer School of Engineering at Dartmouth College, 14 Engineering Dr. Hanover, NH, 03755
| | - R S Strawbridge
- Thayer School of Engineering at Dartmouth College, 14 Engineering Dr. Hanover, NH, 03755
| | - S C Davis
- Thayer School of Engineering at Dartmouth College, 14 Engineering Dr. Hanover, NH, 03755
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Wu J, Sun W, Yang X, Wang H, Liu X, Chi K, Zhou L, Huang X, Zhao S, Ding T, Meng B, Lin D. FP07.03 Landscape Heterogeneity of PD-L1 Expression and Immune Cells Predicts Prognosis of Metastatic Non-Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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25
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Meng B, Li B, Zhao ZH, Wang JT, Zhang H. Risk of acute kidney injury in myocardial infarction: new update. J BIOL REG HOMEOS AG 2020; 34:2251-2253. [PMID: 33210499 DOI: 10.23812/20-152-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Affiliation(s)
- B Meng
- Department of Cardiology, Zibo Central Hospital, Zibo, P.R. China
| | - B Li
- Department of Cardiology, Zibo Central Hospital, Zibo, P.R. China
| | - Z H Zhao
- Department of Cardiology, Zibo Central Hospital, Zibo, P.R. China
| | - J T Wang
- Department of Cardiology, Zibo Central Hospital, Zibo, P.R. China
| | - H Zhang
- Department of Cardiology, Zibo Central Hospital, Zibo, P.R. China
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26
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Lu B, Liu RJ, Meng B, Yuan H, Zhai XJ, Li XY, Qin JL, Zheng JW, Wu GR, Chen JP. [Effect of fragmented sleep on postoperative cognitive function and central neuroinflammation]. Zhonghua Yi Xue Za Zhi 2020; 100:1341-1344. [PMID: 32375444 DOI: 10.3760/cma.j.cn112137-20191215-02734] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of sleep fragmentation on perioperative neurocognitive disorders (PND) and central neuroinflammation by simulating sleep patterns of postoperative patients with sleep fragmentation in aged mice. Methods: Thirty-two elderly ICR mice were randomly divided into four groups (n=8): normal group (C), surgery group (S), fragmented sleep group (F), and surgery+fragmented sleep group (D). Fragmented sleep was conducted after internal fixation of tibia fractures, cognitive function was evaluated by novel object recognition (NOR) and fear conditioning (FC) test, and changes in expression of inflammatory cytokines in hippocampus were detected by ELISA. Results: NOR test: the recognition index (RI) of mice in group C, group S, group F and group D was 0.69±0.07, 0.48±0.07, 0.54±0.10 and 0.50±0.12, respectively. The RI of mice in group S, group F and group D was significantly lower than that in group C (t=4.885, 3.521 and 4.433, all P<0.01). There was no significant difference in RI between group S and group D (t=0.967 1, P>0.05). Contextual FC test: the freezing time of mice in group C, group S, group F and group D was(21.34±6.48), (13.83±4.26), (11.50±6.25) and (6.17±4.77) s, respectively. The freezing time of mice in group S, group F and group D was significantly lower than that in group C (t=2.722, 3.566, 5.496, P<0.05 or P<0.01). The freezing time of mice in group D was significantly lower than that in group S (t=2.774, P<0.05). Cue FC test: the freezing time of mice in group C, group S, group F and group D was (74.36±17.09), (43.91±9.71), (46.34±13.43) and (24.90±14.21) s, respectively. The freezing time of mice in group S, group F and group D was significantly lower than that in group C (t=4.393, 4.043 and 7.136, all P<0.01). The freezing time of mice in group D was significantly lower than that in group S (t=2.743, P<0.05). The levels of TNF-α, IL-6 and IL-1β in hippocampus of mice in group S, F and D were significantly higher than those in group C, while the levels of TNF-α and IL-6 in hippocampus of mice in group D were significantly higher than those in group S, with statistically significant differences (P<0.05 or P<0.01). Conclusion: Postoperative fragmented sleep aggravates postoperative cognitive impairment and increases the hippocampal neuroinflammation in aged mice.
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Affiliation(s)
- B Lu
- Department of Anesthesiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
| | - R J Liu
- Department of Anesthesiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
| | - B Meng
- Department of Anesthesiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
| | - H Yuan
- Department of Anesthesiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
| | - X J Zhai
- Department of Anesthesiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
| | - X Y Li
- Department of Anesthesiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
| | - J L Qin
- Department of Anesthesiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
| | - J W Zheng
- Department of Anesthesiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
| | - G R Wu
- Department of Anesthesiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
| | - J P Chen
- Department of Anesthesiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
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Huang P, Chen S, Yang X, Lei YY, Xu XY, Liu YX, Guo YH, Pan Y, Wang XH, Zhang HL, Fu K, Meng B. [Prognostic evaluation of P53 and BCL2 proteins in MYC/BCL2 double expression DLBCL]. Zhonghua Xue Ye Xue Za Zhi 2020; 40:589-593. [PMID: 32397023 PMCID: PMC7364905 DOI: 10.3760/cma.j.issn.0253-2727.2019.07.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the strong expression (S+) of P53 and BCL2 proteins in MYC/BCL2 double-expression DLBCL (DEL) and whether they can be used for the prognostic evaluation and stratified diagnosis of DELs. Methods: Tissue microarray were made by filed FFPE blocks of 174 DLBCL cases. The translocation of MYC, BCL2 and BCL6 genes were detected by FISH, and the proteins were detected by IHC. Data of clinicopathologic features and follow up of patients were collected and OS (overall survival) and PFS (progression free survival) were analyzed by statistics. Results: Eight double-hit lymphomas (DHLs) were identified in all cases, and 45 DELs were selected from 166 remaining cases, which have no significant difference in OS and PFS compared with non-DEL cases (P=0.668 and P=0.790) . Of 42 DEL-cases with follow up data, 24 cases with P53+ or/and BCL2 (S+) are significantly shorter OS and PFS than others (P=0.003 and P=0.000) , in which the cases with P53+/BCL2 (S+) co-expression were the worst prognosis, and P53/BCL2 co-weaker positive DEL cases even have superior OS and PFS than those non-DELs. Although statistics showed that the cases of P53+ or/and BCL2 (S+) have a lower OS and PFS in total cases (P=0.063 and P=0.024) , it is not the case when the DEL-cases take out from total cases, that is the cases with P53+ or/and BCL2 (S+) are as similar OS and PFS as others in non-DEL group (P=0.590 and P=0.550) . Conclusion: The strong expression of P53 and BCL2 proteins can be used as indicators of stratified diagnosis and poor prognosis of DEL.
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Affiliation(s)
- P Huang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China; Department of Pathology, Tianjin Medical University Cancer Institute and Hospital Tianjin 300060, China
| | - S Chen
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China; Department of Pathology, Tianjin Medical University Cancer Institute and Hospital Tianjin 300060, China
| | - X Yang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China; Department of Pathology, Tianjin Medical University Cancer Institute and Hospital Tianjin 300060, China
| | - Y Y Lei
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China; Department of Pathology, Tianjin Medical University Cancer Institute and Hospital Tianjin 300060, China
| | - X Y Xu
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China; Department of Pathology, Tianjin Medical University Cancer Institute and Hospital Tianjin 300060, China
| | - Y X Liu
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China; Department of Pathology, Tianjin Medical University Cancer Institute and Hospital Tianjin 300060, China
| | - Y H Guo
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China; Department of Pathology, Tianjin Medical University Cancer Institute and Hospital Tianjin 300060, China
| | - Y Pan
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China; Department of Pathology, Tianjin Medical University Cancer Institute and Hospital Tianjin 300060, China
| | - X H Wang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China; Department of Lymphoma, Tianjin Medical University Cancer Institute and Hospital Tianjin 300060, China
| | - H L Zhang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China; Department of Lymphoma, Tianjin Medical University Cancer Institute and Hospital Tianjin 300060, China
| | - K Fu
- Department of Pathology and Microbiology, UNMC, Omaha, USA
| | - B Meng
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center of Cancer, Tianjin 300060, China; Department of Pathology, Tianjin Medical University Cancer Institute and Hospital Tianjin 300060, China
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Fu QS, Chen XH, Chakrabarti C, Li CL, Zheng J, Wang PJ, Yin HX, Qiu Y, Meng B, Yuan SL. Negative magnetization, complex magnetic ordering and applications of Cr-doped Co 2TiO 4. Phys Chem Chem Phys 2020; 22:7058-7064. [PMID: 32196030 DOI: 10.1039/c9cp06444c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polycrystalline Co2Ti1-xCrxO4 (0 ≤ x ≤ 0.2) inverse spinel ceramics have been synthesized via a sol-gel technique. The dc magnetization measurement in the field-cooled mode shows that negative magnetization could be observed until x reaches 0.2. The exchange constants are calculated using the ferrimagnetic Curie-Weiss fitting and the mean-field theory. This reveals that the strength of the inter sublattice magnetic interaction presents a non-monotonic trend with the increase in Cr content and reaches the minimum at x = 0.1, giving rise to the highest compensation temperature in the x = 0.1 sample. The applicability of the x = 0.1 sample is investigated in light of two prominent magnetic effects: (i) the stable magnetic switching effect indicates the potential applications in magnetic switching and data storage and (ii) the coexistence of normal and inverse magnetocaloric effects suggests a potential application in a constant temperature bath at 54 K.
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Affiliation(s)
- Q S Fu
- School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China.
| | - X H Chen
- School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China.
| | - C Chakrabarti
- School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China.
| | - C L Li
- School of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, People's Republic of China
| | - J Zheng
- School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China.
| | - P J Wang
- School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China.
| | - H X Yin
- School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China.
| | - Y Qiu
- School of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, People's Republic of China
| | - B Meng
- School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China.
| | - S L Yuan
- School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China.
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Byrd BK, Wirth DJ, Meng B, Strawbridge RS, Davis SC. Evaluating uptake of multiple fluorescent contrast agents in brain tumors simultaneously using whole animal multi-spectral cryo-imaging. Proc SPIE Int Soc Opt Eng 2020; 11219. [PMID: 34744247 DOI: 10.1117/12.2543921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
MRI images of gadolinium-based contrast agents (GBCA's) acquired before surgery are often registered to patients and used to guide surgical resection of intracranial tumors. Yet, the accuracy of these MR images in describing the surgical field degrades as surgery progresses; a well-recognized problem which has prompted efforts to develop new techniques that provide updated guidance information on residual tumor location. These efforts span a wide array of technologies, including image updating with deformation models, intraoperative MRI, and fluorescence guided surgery, among others. However, introduction of a straightforward technique that provides surgeons with a current view of GBCA distribution in real time remains an important goal. In this context, development of a fluorescent agent that recapitulates the kinetic behavior of GBCA's could provide familiar information directly in the surgical field in real time. To advance this strategy, we have begun identifying fluorescent contrast agents that show similar kinetic behavior to GBCA's. Using a novel hyperspectral whole body cryo-imaging system, we acquired high-resolution 3-D volumes of the distribution of multiple candidate fluorophores in whole heads bearing orthotopic brain tumors. Preliminary results reveal significant differences in the distribution of candidate optical agents, some of which show strong similarity to the GBCA uptake. Identification and eventual translation of a reliable GBCA-optical analog could improve and simplify surgical resection of brain tumors.
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Affiliation(s)
- B K Byrd
- Thayer School of Engineering at Dartmouth College, 14 Engineering Dr. Hanover, NH, 03755
| | - D J Wirth
- Thayer School of Engineering at Dartmouth College, 14 Engineering Dr. Hanover, NH, 03755
| | - B Meng
- Thayer School of Engineering at Dartmouth College, 14 Engineering Dr. Hanover, NH, 03755
| | - R S Strawbridge
- Thayer School of Engineering at Dartmouth College, 14 Engineering Dr. Hanover, NH, 03755
| | - S C Davis
- Thayer School of Engineering at Dartmouth College, 14 Engineering Dr. Hanover, NH, 03755
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30
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Meng B, Zhai XJ, Qin JL, Li XY, Lu B, Zheng JW, Chen JP. [Modified memory sub-test of Syndrom Kurz test in middle-aged and elderly Chinese]. Zhonghua Yi Xue Za Zhi 2019; 99:2047-2051. [PMID: 31315375 DOI: 10.3760/cma.j.issn.0376-2491.2019.26.009] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the applicability of the modified memory sub-test of syndrom kurz test (SKT-M) in middle-aged and elderly Chinese. Methods: Between March 1, 2017, and October 31, 2017, at HwaMei Hospital, 132 patients receiving elective great saphenous vein high ligation and stripping operation and 96 their accompanying dependents, 55-75 years old, were randomly divided into the SKT-M group (n=121) and auditory verbal learning test -huashan version (AVLT-H) group (n=107) using random numeral method. The two groups underwent two corresponding neuropsychological tests respectively on the day before surgery and the second day after surgery. Results: There was no significant difference in the baseline characteristics and all the neuropsychological indices at the two time points between patients and dependents (P>0.05). As a consequence, the data of the patients and dependents were integrated to compare the applicability of SKT-M and AVLT-H. The "low-score" ratio of SKT-M immediate recall (2.4%) was lower than that of AVLT-H test (12.1%) (χ(2)=8.138, P<0.01). Besides, the "low-score" ratio of SKT-M delayed recall (5.7%) was also lower than that of AVLT-H test (20.5%) (χ(2)=11.167, P<0.01). The influence factors of SKT-M were less than that of AVLT-H test. However, the learning effect of SKT-M immediate recall was more significant, for its first testing sore (23.1±5.4) was significantly higher than the second one (21.9±5.1) (t=-3.971, P<0.001). Conclusion: The SKT-M has better applicability to 55-75 years old Chinese than AVLT-H test, but its learning effect should be noted.
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Affiliation(s)
- B Meng
- Department of Anesthesiology, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
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Liu CX, Meng B, Li YB, Bai H, Wu ZX. A rare case of thoracic spinal intradural extramedullary enterogenous cyst with acute onset: case report and literature review. Ann R Coll Surg Engl 2019; 101:e142-e146. [PMID: 31155903 DOI: 10.1308/rcsann.2019.0066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The intraspinal enterogenous cyst, also called an neurenteric cyst, is a rare congenital disease. It was reported to be local to the C1 to L2 spinal segments, with the majority located in the cervicothoracic region. Most patients present with symptoms of progressive focal pain, myelopathic signs or radicular symptoms. We report a rare case of thoracic spinal intradural extramedullary enterogenous cyst with rapidly progressive weakness of both lower extremities. Additionally, we analysed the literature concerning the clinical features, diagnosis and prognosis of this disease.
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Affiliation(s)
- C X Liu
- Institute of Orthopaedics, Xijing Hospital, Fourth Military Medical University , Xi'an, Shaanxi Province , China
| | - B Meng
- Institute of Orthopaedics, Xijing Hospital, Fourth Military Medical University , Xi'an, Shaanxi Province , China
| | - Y B Li
- Institute of Orthopaedics, Xijing Hospital, Fourth Military Medical University , Xi'an, Shaanxi Province , China
| | - H Bai
- Institute of Orthopaedics, Xijing Hospital, Fourth Military Medical University , Xi'an, Shaanxi Province , China
| | - Z X Wu
- Institute of Orthopaedics, Xijing Hospital, Fourth Military Medical University , Xi'an, Shaanxi Province , China
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Wang X, Zhang T, Meng B, Zhai Q, Ren X, Li L, Wang P, Zhang H. A2aR AS ONE OF NOVEL IMMUNE CHECKPOINTS, AND TUMOR-INFILTRATING LYMPHOCYTES IN DIFFUSE LARGE B-CELL LYMPHOMA. Hematol Oncol 2019. [DOI: 10.1002/hon.19_2631] [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: 11/10/2022]
Affiliation(s)
- X. Wang
- Department of Lymphoma; Tianjin Medical University Cancer Institute and Hospital; Tianjin China
| | - T. Zhang
- Department of Lymphoma; Tianjin Medical University Cancer Institute and Hospital; Tianjin China
| | - B. Meng
- Department of Pathology; Tianjin Medical University Cancer Institute and Hospital; Tianjin China
| | - Q. Zhai
- Department of Pathology; Tianjin Medical University Cancer Institute and Hospital; Tianjin China
| | - X. Ren
- Department of Immunology/Biotherapy; Tianjin Medical University Cancer Institute and Hospital; Tianjin China
| | - L. Li
- Department of Lymphoma; Tianjin Medical University Cancer Institute and Hospital; Tianjin China
| | - P. Wang
- Department of Radiation Oncology; Tianjin Medical University Cancer Institute and Hospital; Tianjin China
| | - H. Zhang
- Department of Lymphoma; Tianjin Medical University Cancer Institute and Hospital; Tianjin China
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Chen CR, Zheng JW, Meng B, Lu B, Zhai XJ. [Comparison of effects of two anesthesia methods on the first night sleep quality in middle-aged and elderly patients undergoing surgery for lower extremity varicose vein]. Zhonghua Yi Xue Za Zhi 2018; 98:3773-3777. [PMID: 30541220 DOI: 10.3760/cma.j.issn.0376-2491.2018.46.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate effects of two anesthesia methods on the first night sleep quality in middle-aged and elderly patients after surgery. Methods: This was a prospective study conducted from November 2017 to March 2018. Sixty patients, aged 50-70, undergoing elective surgery for unilateral lower extremity varicose vein at Ningbo No.2 Hospital, with American Society of Anesthesiologists (ASA) grade Ⅰ or Ⅱ, were enrolled and randomly allocated to two groups (n=30), general anesthesia group and spinal anesthesia group. On the first day before surgery, the patient's general data were collected and the Pittsburgh sleep quality index (PSQI) was used to assess the patient's sleep status in the past month. The postoperative mean arterial pressure (MAP), heart rate (HR) and pulse oxygen saturation (SpO(2)) in the ward were recorded with a multi-function monitor on first night after surgery. The total sleep time and arousal time were obtained by bispectral index (BIS) monitoring from 20: 00 (the first day) to 6: 00 (the second day). Athens Insomnia Scale (AIS) was recorded at 18: 00 at the second day after surgery. Results: There was no significant difference in general data and PSQI scale scores between the two groups of patients (all P>0.05). And there were no significant differences in MAP, HR, SpO(2) and BIS every 2 hours between the two groups from 20: 00 (the first day) to 6: 00 (the second day)(all P>0.05). Compared with the general anesthesia group, the first night of total sleep time in the spinal anesthesia group was significantly shorter[(357.2±83.4)min vs (275.1±64.8)min, t=-9.635, P<0.05], while the rate of wakefulness, total sleep time, overall sleep quality, daytime mood and daytime physical function were significantly higher[(25.9%, 22.2%, 25.9%, 18.5%18.5%) vs (51.7%, 51.7%, 55.2%, 48.3%44.8%), χ(2)=3.901, 5.192, 4.941, 5.523 and 4.437, all P<0.05], and the cases of postoperative urinary retention and lower limb discomfort were significantly higher[(8 and 6) vs (1 and 0), all P<0.05]. Conclusion: Both anesthesia methods can be safely and effectively applied to middle-aged and elderly patients with lower extremity varicose veins surgery, but patients with general anesthesia show fewer adverse reactions on the first night after surgery and have better sleep quality.
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Affiliation(s)
- C R Chen
- Department of Anesthesiology, Ningbo First Hospital, Ningbo 315010, Zhejiang Province, China
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Cao Z, Meng B, Fan R, Liu M, Gao M, Xing Z, Luan X. Comparative proteomic analysis of ovaries from Huoyan geese between pre-laying and laying periods using an iTRAQ-based approach. Poult Sci 2018; 97:2170-2182. [DOI: 10.3382/ps/pey029] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 02/22/2018] [Indexed: 01/12/2023] Open
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Gao EJ, Meng B, Su JQ, Peng TT, Qi ZZ, Jia B, Feng YH, Zhu MC. Structure, DNA bonding, and biological activity of a novel Pb(II) complex of 1,1-bis(5-(pyrazin-2-yl)-1,2,4-triazol-3-yl) methane. J STRUCT CHEM+ 2018. [DOI: 10.1134/s0022476617080121] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Pal A, Chen L, Yang L, Yang F, Meng B, Jheon AH, Ho SP. Micro-anatomical responses in periodontal complexes of mice to calibrated orthodontic forces on the crown. Orthod Craniofac Res 2017. [DOI: 10.1111/ocr.12172] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- A. Pal
- Departments of Preventive and Restorative Dental Sciences; University of California San Francisco; San Francisco CA USA
| | - L. Chen
- Departments of Preventive and Restorative Dental Sciences; University of California San Francisco; San Francisco CA USA
| | - L. Yang
- Departments of Preventive and Restorative Dental Sciences; University of California San Francisco; San Francisco CA USA
| | - F. Yang
- Departments of Preventive and Restorative Dental Sciences; University of California San Francisco; San Francisco CA USA
| | - B. Meng
- Orofacial Sciences; School of Dentistry; University of California San Francisco; San Francisco CA USA
| | - A. H. Jheon
- Orofacial Sciences; School of Dentistry; University of California San Francisco; San Francisco CA USA
| | - S. P. Ho
- Departments of Preventive and Restorative Dental Sciences; University of California San Francisco; San Francisco CA USA
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Zhou SL, Meng B, Ding JH. [The expression of serum hepatocyte growth factor in OSAHS]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:690-693. [PMID: 29871348 DOI: 10.13201/j.issn.1001-1781.2017.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Indexed: 06/08/2023]
Abstract
Objective:To investigate the clinical significance of detecting peripheral blood hepatocyte growth factor(HGF) in OSAHS patients.Method:Ninety-six cases of OSAHS patients in our hospital were selected as OSAHS group,and were divided into 3 subgroups according to the PSG results:mild,medium and severe. Each group included 32 cases,Thirty-five cases of healthy persons were selected as control group. ELISA method was utilized to detect the HGF level of peripheral blood. HGF concentration was measured in 32 patients with severe OSAHS after 3 months of comprehensive treatment. The relationship between serum HGF and sleep respiration events was further analyzed.Result: The HGF concentration of peripheral blood increased with the severity of OSAHS.The serum levels of HGF in the control,mild,medium and severe group were(487.75±46.74)pg/ml,(519.44±50.77)pg/ml,(753.52±58.91) pg/ml and(829.49±61.74)pg/ml,respectively. There were significant differences among groups(F=117.733,P<0.01). HGF concentration in peripheral blood of OSAHS patients was unrelated to sex,age,and BMI(P>0.05),and positively correlated with AHI,negatively correlated with LSaO₂(P<0.01). After comprehensive treatment,the serum HGF concentration and AHI in severe OSAHS group were significantly decreased,while LSaO₂ was significantly increased.Conclusion:The level of HGF was increased in OSAHS patients and was positively correlated with the severity of OSAHS. Determining the level of HGF in peripheral blood is important for evaluating the severity of OSAHS and the degree of vascular endothelial dysfunction,and assessing the risk of cardiovascular disease.
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Affiliation(s)
- S L Zhou
- Department of Respiration,Jiaxian People's Hospital,Jiaxian,467100,China
| | - B Meng
- Department of Respiration,Henan Traditional Chinese Medicine Hospital
| | - J H Ding
- Department of Respiration,Pingdingshan First People's Hospital
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Zheng JW, Meng B, Li XY, Lu B, Wu GR, Chen JP. NF-κB/P65 signaling pathway: a potential therapeutic target in postoperative cognitive dysfunction after sevoflurane anesthesia. Eur Rev Med Pharmacol Sci 2017; 21:394-407. [PMID: 28165545] [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: 06/06/2023]
Abstract
OBJECTIVE This study aimed to explore the role of NF-κB/P65 signaling pathway in postoperative cognitive dysfunction (POCD) after sevoflurane anesthesia. MATERIALS AND METHODS A total of 120 male Sprague-Dawley (SD) rats were selected and assigned into five groups (24 rats in each group): the control, sevoflurane, sevoflurane + splenectomy, pyrrolidine dithiocarbamate (PDTC, a specific inhibitor of NF-κB), and sevoflurane + splenectomy + PDTC groups. Electrocardiogram (ECoG) and behavior changes of rats were monitored before and after anesthesia/operation. Ionized calcium-binding adapter molecules 1 (Iba-1) in the hippocampal zones were observed by immunofluorescence staining. Blood-brain barrier (BBB) permeability was determined by immunohistochemistry. The mRNA and protein expressions of NF-κB/P65 signaling pathway-related proteins and inflammatory cytokines were detected by qRT-PCR assay and Western blotting. RESULTS During the anesthesia/operation, the vital signs of rats were stable, but the ECoG in the sevoflurane and sevoflurane + splenectomy groups mainly presented slow waves. The ECoG arousal response in the sevoflurane + splenectomy + PDTC group was observed. At 24 h after the anesthesia/operation, the expressions of NF-κB and P65 in the hippocampal zone, the expressions of IκBα and inflammatory cytokines (IL-1β, IL-6 and TNF-α), the expression of Iba-1 in rat hippocampal dentate gyrus (DG) zone and CA3 zone, and the permeability of BBB were significantly increased and the behavior of rats changed dramatically (all p < 0.05), while PDTC treatments could eliminate these changes induced by the anesthesia/operation (all p < 0.05). No changes were observed in the expressions of NF-κB, P65, IκBα, Iba-1 and inflammatory cytokines (IL-1β, IL-6 and TNF-α), and the permeability of BBB and the behavior of rats in the sevoflurane and the PDTC groups (all p > 0.05). CONCLUSIONS These results suggest that the inhibition of NF-κB/P65 signaling pathway may relieve POCD after sevoflurane anesthesia.
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Affiliation(s)
- J-W Zheng
- Department of Anesthesiology, Ningbo No. 2 Hospital, Ningbo, China.
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Zhang H, Wang X, Dong L, Lv H, Li W, Song Z, Li L, Zhou S, Qiu L, Qian Z, Liu X, Feng L, Meng B, Fu K, Wang X, Pan-Hammarström Q, Wang P. 332O Co-expression of PD-L1 and p-AKT is associated with poor prognosis in diffuse large B-cell lymphoma via PD-1/PD-L1 axis activating intracellular AKT/mTOR pathway in tumor cells. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw586.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Tian C, Chen YF, Zhao P, Yue ZJ, Wang XF, Meng B, Zhang YZ. [A case report of Glomerular infiltration by intravascular large B-cell lymphoma]. Zhonghua Xue Ye Xue Za Zhi 2016; 37:897. [PMID: 27801324 PMCID: PMC7364875 DOI: 10.3760/cma.j.issn.0253-2727.2016.10.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- C Tian
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
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Abstract
A new method of surface heparinizing biodegradable polymers was designed. A heparin-modified poly(L-lactic acid) (PLLA) system was developed by physically entrapping the heparin on the PLLA surface. The surface characterization and biological performance of these materials were carried out by SEM, attenuated-total-reflection spectroscopy, contact angle measurements, and platelet adhesion evaluations. The modification strategy was performed by reversible swelling of the PLLA surface following exposure to a solvent–nonsolvent mixture. This process resulted in the localized physical entrapment of the diffused heparin. X-ray photoelectron spectroscopy was used to confirm that control over the heparin surface density can be achieved by using set polymer treatment times. Platelet adhesion tests showed significant improvement in blood compatibility by the PLLA surfaces after modification.
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Affiliation(s)
- B. Meng
- Department of Materials Science and Engineering Tsinghua University, Beijing, China
| | - X. H. Wang
- Department of Materials Science and Engineering Tsinghua University, Beijing, China
| | - F. Z. Cui
- Department of Materials Science and Engineering Tsinghua University, Beijing, China
| | - H. Y. Dong
- Institute of Biomedical Engineering Dalian University Dalian, China
| | - F. Yu
- Department of Laboratory Animal Science Peking University Health Science Center Beijing, China
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Zhang LL, Meng B, Yang HL. [Effects of pelvic balance after posterior reduction of balanced L5-S1 Ⅲ-grade isthmic spondylolisthesis in adults]. Zhonghua Yi Xue Za Zhi 2016; 96:1811-4. [PMID: 27356787 DOI: 10.3760/cma.j.issn.0376-2491.2016.23.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To observe the changes in pelvic balance after posterior reduction of balanced L5-S1 Ⅲ-grade isthmic spondylolisthesis in adults. METHODS A total of 18 adult patients with balanced L5-S1 Ⅲ-grade isthmic spondylolisthesis were retrospectively studied after successful treatment by posterior decompression, reduction and L5-S1 interbody fusion in Department of Orthopedic Surgery, the First Affiliated Hospital of Soochow University from October 2009 to October 2014.L5-S1 of eight patients were fixed with pedical strews, while others were fixed upgrade to L4.Spino-pelvic parameters: slipping percentage (SP), spondy slip angle (SSA), pelvic incidence (PI), sacral slope (SS), pelvic tilt (PT) and lumbar lordosis (LL) were measured on standing lateral view radiograms.The changes in pelvic balance were analyzed after posterior reduction. RESULTS All the patients experienced significant changes in SP and SSA with (42.4%±8.3)% and (9.8±4.9)°improved significantly while no significant differences were recorded in PI, PT, SS and LL. PI, PT, SS and LL passed from an average(61.1±6.2)°, (16.2±4.5)°, (44.8±2.9)°, (51.3±9.3)°preoperatively to (61.4±6.1)°, (14.9±4.0)°, (46.5±3.0)°, (48.6±7.0)°respectively.According to K-means cluster analysis, pelvic balance improved postoperatively.No significant correlation was found for ΔPT, ΔSS with ΔSP, while ΔPT and ΔSS had a significant correlation with ΔSSA (correlation coefficient -0.77 and 0.82 respectively). CONCLUSION Posterior SSA reduction in adults with balanced L5-S1 Ⅲ-grade isthmic spondylolisthesis can improve the former pelvic balance.
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Affiliation(s)
- L L Zhang
- Department of Orthopedic Surgery, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
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Sanders J, Abadi E, Meng B, Samei E. SU-F-I-45: An Automated Technique to Measure Image Contrast in Clinical CT Images. Med Phys 2016. [DOI: 10.1118/1.4955873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Oldham M, Yoon S, Meng B, Fathi Z, Beyer W, Adamson J, Alcorta D, Osada T, Lyerly K, Dewhirst M, Fecci P, Walder H, Spector N. WE-FG-BRA-01: Cancer Treatment Utilizing Photo-Activation of Psoralen with KV X-Rays. Med Phys 2016. [DOI: 10.1118/1.4957901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Ma C, Ding YC, Yu W, Wang Q, Meng B, Huang T. MicroRNA-200c overexpression plays an inhibitory role in human pancreatic cancer stem cells by regulating epithelial-mesenchymal transition. Minerva Med 2015; 106:193-202. [PMID: 26081037] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
AIM Cancer stem cells (CSCs) are believed to be the 'seed cell' in cancer recurrence and metastasis. MicroRNAs (miRNAs) have emerged as potential therapeutic candidates due to their ability to regulate the epithelial-mesenchymal transition (EMT). The goal of this study was to investigate the effect of miRNA-200c (miR-200c) on the EMT, tumorigenesis, colony formation, invasion and chemoresistance of human pancreatic cancer stem cells (PCSCs). METHODS PCSCs with CD24+CD44+ESA+ as the marker was sorted from PANC-1 cell line by fluorescence activated cell sorter (FACS). Quantitative real-time PCR (qRT-PCR) assay was used to detect the relative mRNA expression levels of miR-200c and EMT-associated phenotypes. Transfection of miR-200c mimic into PCSCs was performed to establish miR- 200c overexpressed cells. The assays of colony forming, cellular invasion and survival in vitro and tumor progression in vivo were performed. RESULTS Expression of miR-200c was significantly reduced in PCSCs compared with PANC-1 cells. However, the stable over expression of the miR-200c in the PCSCs resulted in a significant down-regulation of zinc-finger E-box binding homeobox 1 (ZEB1) and the Vimentin expression, an upregulation of the E-cadherin expression as well as a decrease of colony forming, chemoresistance and invasion in vitro and xenograft growth in vivo in nude mice by inhibition of the EMT. CONCLUSION Our study demonstrated that miR-200c may become a new therapeutic target for gene therapy in patients suffered from pancreatic cancer.
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Affiliation(s)
- C Ma
- Department of Hepatopancreatobiliary Surgery, The Affiliated Tumor Hospital of Zhengzhou University, Zhengzhou, China -
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Liu Y, Fu X, Tao S, Liu L, Li W, Meng B. Comparison and Analysis of Organochlorine Pesticides and Hexabromobiphenyls in Environmental Samples by Gas Chromatography-Electron Capture Detector and Gas Chromatography-Mass Spectrometry. J Chromatogr Sci 2014; 53:197-203. [DOI: 10.1093/chromsci/bmu048] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Dong Z, Yan L, Huang G, Zhang L, Mei B, Meng B. Ibuprofen partially attenuates neurodegenerative symptoms in presenilin conditional double-knockout mice. Neuroscience 2014; 270:58-68. [PMID: 24699228 DOI: 10.1016/j.neuroscience.2014.03.048] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2013] [Revised: 03/06/2014] [Accepted: 03/23/2014] [Indexed: 01/22/2023]
Abstract
Ibuprofen is a widely used nonsteroidal anti-inflammatory drug that reportedly reduces the risk of Alzheimer's disease (AD) development. The anti-inflammatory effect of ibuprofen occurred via inhibition of cyclooxygenases and anti-amyloidogenesis through modulation of γ-secretase. Presenilin 1 and 2 conditional double-knockout (cDKO) mice exhibited age-dependent memory impairment and forebrain degeneration without elevation of amyloid β deposition. Therefore, cDKO mice can be an ideal animal model on which to independently test the effects of ibuprofen anti-inflammatory properties on the prevention of AD. Three- and six-month-old cDKO mice were fed diet containing 375 ppm ibuprofen for six months. After multiple, well-validated behavioral tests, treatment with ibuprofen improved cognition-related behavioral performance, and drug efficacy was correlated with the timing of administration. Ibuprofen was more effective on six-month-old than on three-month-old cDKO mice. Biochemical analysis demonstrated that the effects of ibuprofen on glial fibrillary acidic protein and CD68 expression levels were uneven in different brain regions of cDKO mice and that age also influenced such effects. Tau hyperphosphorylation and the cleavage of caspase-3 decreased after ibuprofen treatment, and this effect was more significant in the older than the younger group of mice, which was consistent with the results of behavioral tests.
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Affiliation(s)
- Z Dong
- Key Laboratory of Brain Functional Genomics, Ministry of Education, Shanghai Key Laboratory of Brain Functional Genomics, East China Normal University, Shanghai 200062, China
| | - L Yan
- Key Laboratory of Brain Functional Genomics, Ministry of Education, Shanghai Key Laboratory of Brain Functional Genomics, East China Normal University, Shanghai 200062, China
| | - G Huang
- Key Laboratory of Brain Functional Genomics, Ministry of Education, Shanghai Key Laboratory of Brain Functional Genomics, East China Normal University, Shanghai 200062, China
| | - L Zhang
- Key Laboratory of Brain Functional Genomics, Ministry of Education, Shanghai Key Laboratory of Brain Functional Genomics, East China Normal University, Shanghai 200062, China
| | - B Mei
- Key Laboratory of Brain Functional Genomics, Ministry of Education, Shanghai Key Laboratory of Brain Functional Genomics, East China Normal University, Shanghai 200062, China
| | - B Meng
- Key Laboratory of Brain Functional Genomics, Ministry of Education, Shanghai Key Laboratory of Brain Functional Genomics, East China Normal University, Shanghai 200062, China.
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Zhou CW, Zhao JX, Liu Q, Meng B, Wu ZH. Study on Mechanical, Thermal Properties and Morphology of Biodegradable Poly(butylene succinate)/Nano-TiO2 Composites. INT POLYM PROC 2013. [DOI: 10.3139/217.2750] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Nanocomposites of Poly(butylene succinate) (PBS) and poly(∊-caprolactone) (PCL)-coated nano-TiO2 (C–TiO2) are prepared by melt-blending technique. The influence of high loading C–TiO2 on the microstructure, mechanical, thermal and dynamic rheological properties of pure PBS and its nanocomposites are studied. Scanning Electron Microscope results demonstrate that the surface modification and content of TiO2 are main factors to affect the microstructure of composites. Mechanical tests show that adding C–TiO2 into PBS matrix is an effective way to improve the impact strength of the PBS. Impact property and tensile property are sensitive to different microstructure, the former is distance between particles and the latter is the aggregation of particles. Dynamic rheological tests show that the incorporation of C–TiO2 particles into PBS can improve the elastic properties of PBS nanocomposites and restrict the mobility of PBS chains. Differential scanning calorimeter indicates the addition of C–TiO2 can increase the crystallization rate but do not influence the main PBS crystals. Depending on the state of composites, the C–TiO2 restricts or improves the mobility of PBS molecules.
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Affiliation(s)
- C.-W. Zhou
- College of Polymer Science and Engineering, Sichuan University, Chengdu, PRC
| | - J.-X. Zhao
- College of Polymer Science and Engineering, Sichuan University, Chengdu, PRC
| | - Q. Liu
- College of Polymer Science and Engineering, Sichuan University, Chengdu, PRC
| | - B. Meng
- College of Polymer Science and Engineering, Sichuan University, Chengdu, PRC
| | - Z.-H. Wu
- College of Polymer Science and Engineering, Sichuan University, Chengdu, PRC
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Meng B, Li R, Han B, Chen J, Xing L. Non-Coplanar Cone Beam CT Reconstruction With Limited Angle of Projections Using Rigid Image Registration Facilitated Prior Image Constrained Compressed Sensing. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Meng B, Li R, Han B, Cheng J, Xing L. TH-C-103-06: Non-Coplanar Cone Beam CT Reconstruction with Limited Angle of Projections Using Rigid Image Registration Facilitated Prior Image Constrained Compressed Sensing. Med Phys 2013. [DOI: 10.1118/1.4815786] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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