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Zhang W, Cao YS, Wei MC, Xu J, Bao Z, Yan JX, Chen C, Li JY, Ban ZY, Wang BJ, Zhao X, Zhao C, Zeng XX. [Application of optical coherence tomography in the evaluation of cervical lesions: a multicenter study]. Zhonghua Fu Chan Ke Za Zhi 2024; 59:299-306. [PMID: 38644276 DOI: 10.3760/cma.j.cn112141-20240103-00006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Objective: To explore the value of optical coherence tomography (OCT) imaging system in evaluating cervical lesions in vivo. Methods: A total of 1 214 patients with cervical lesions were collected from January 2020 to December 2021 in the Third Affiliated Hospital of Zhengzhou University, Maternal and Chlid Heaith Hospital of Gushi County, Xinyang City, Henan Province, and Maternal and Chlid Heaith Hospital of Sui County, Shangqiu City, Henan Province. The age of the patients was (38.9±10.5) years (range: 16-77 years). All patients underwent in vivo cervical OCT examination and cervical biopsy pathology examination, and summarized the OCT image features of in vivo cervical lesions. Using the pathological diagnosis as the "gold standard", the accuracy, specificity, sensitivity, positive predictive value (PPV) and negative predictive value (NPV) of OCT image interpretation results were evaluated, as well as the consistency of OCT image diagnosis and pathological diagnosis. At the same time, the in vivo cervical OCT imaging system, as a newly developed screening tool, was compared with the traditional combined screening of human papillomavirus (HPV) and Thinprep cytologic test (TCT), to assess the screening effect. Results: By comparing the OCT images of the cervix in vivo with the corresponding HE images, the OCT image characteristics of the normal cervix and various types of cervical lesions in vivo were summarized. The accuracy, sensitivity, specificity, PPV and NPV of OCT image in the diagnosis of high-grade squamous intraepithelial lesion (HSIL) and above (HSIL+) were 93.4%, 88.5%, 95.0%, 85.0% and 96.2%, respectively. The accuracy, sensitivity, specificity, PPV and NPV of OCT for low-grade squamous intraepithelial lesion (LSIL) were 84.7%, 61.7%, 96.3%, 89.3% and 83.2%, respectively. The consistency between OCT image diagnosis and pathological diagnosis was strong (Kappa value was 0.701).The accuracy, sensitivity and specificity of OCT screening, HPV and TCT combined screening were 83.7% vs 64.9% (χ²=128.82, P<0.001), 77.8% vs 64.5% (χ²=39.01, P<0.001), 91.8% vs 65.4% (χ²=98.12, P<0.001), respectively. The differences were statistically significant. Conclusions: OCT imaging system has high sensitivity and specificity in the evaluation of cervical lesions in vivo, and has the characteristics of non-invasive, real-time and high efficiency. OCT examination is expected to become an effective method for the diagnosis of cervical lesions and cervical cancer screening.
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Affiliation(s)
- W Zhang
- Department of Pathology, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y S Cao
- Department of Pathology, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - M C Wei
- Department of Pathology, Maternal and Child Health Hospital of Gushi County, Xinyang City, Henan Province, Xinyang 465299, China
| | - J Xu
- Department of Pathology, Maternal and Child Health Hospital of Sui County, Shangqiu City, Henan Province, Shangqiu 476999, China
| | - Z Bao
- Department of Pathology, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - J X Yan
- Department of Pathology, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - C Chen
- Department of Pathology, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - J Y Li
- Department of Pathology, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Z Y Ban
- Department of Pathology, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - B J Wang
- Department of Gynecology, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - X Zhao
- Department of Medical Imaging, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Chengquan Zhao
- Department of Pathology, University of Pittsburgh Medical Center, Pennsylvania 19019, USA
| | - X X Zeng
- Department of Pathology, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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He J, Zhang Y, Bao Z, Guo S, Cao C, Du C, Cha J, Sun J, Dong Y, Xu J, Li S, Zhou X. [Molluscicidal effect of spraying 5% niclosamide ethanolamine salt granules with drones against Oncomelania hupensis in hilly regions]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2023; 35:451-457. [PMID: 38148533 DOI: 10.16250/j.32.1374.2023085] [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] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
OBJECTIVE To establish a snail control approach for spraying chemicals with drones against Oncomelania hupensis in complex snail habitats in hilly regions, and to evaluate its molluscicidal effect. METHODS The protocol for evaluating the activity of spraying chemical molluscicides with drones against O. hupensis snails was formulated based on expert consultation and literature review. In August 2022, a pretest was conducted in a hillside field environment (12 000 m2) north of Dafengji Village, Dacang Township, Weishan County, Yunnan Province, which was assigned into four groups, of no less than 3 000 m2 in each group. In Group A, environmental cleaning was not conducted and 5% niclosamide ethanolamine salt granules were sprayed with drones at a dose of 40 g/m2, and in Group B, environmental cleaning was performed, followed by 5% niclosamide ethanolamine salt granules sprayed with drones at a dose of 40 g/m2, while in Group C, environmental cleaning was not conducted and 5% niclosamide ethanolamine salt granules were sprayed with knapsack sprayers at a dose of 40 g/m2, and in Group D, environmental cleaning was performed, followed by 5% niclosamide ethanolamine salt granules sprayed with knapsack sprayers at a dose of 40 g/m2. Then, each group was equally divided into six sections according to land area, with Section 1 for baseline surveys and sections 2 to 6 for snail surveys after chemical treatment. Snail surveys were conducted prior to chemical treatment and 1, 3, 5, 7 days post-treatment, and the mortality and corrected mortality of snails, density of living snails and costs of molluscicidal treatment were calculated in each group. RESULTS The mortality and corrected mortality of snails were 69.49%, 69.09%, 53.57% and 83.48%, and 68.58%, 68.17%, 52.19% and 82.99% in groups A, B, C and D 14 days post-treatment, and the density of living snails reduced by 58.40%, 63.94%, 68.91% and 83.25% 14 days post-treatment relative to pre-treatment in four groups, respectively. The median concentrations of chemical molluscicides were 37.08, 35.42, 42.50 g/m2 and 56.25 g/m2 in groups A, B, C and D, and the gross costs of chemical treatment were 0.93, 1.50, 0.46 Yuan per m2 and 1.03 Yuan per m2 in groups A, B, C and D, respectively. CONCLUSIONS The molluscicidal effect of spraying 5% niclosamide ethanolamine salt granules with drones against O. hupensis snails is superior to manual chemical treatment without environmental cleaning, and chemical treatment with drones and manual chemical treatment show comparable molluscicidal effects following environmental cleaning in hilly regions. The cost of chemical treatment with drones is slightly higher than manual chemical treatment regardless of environmental cleaning. Spraying 5% niclosamide ethanolamine salt granules with drones is recommended in complex settings with difficulty in environmental cleaning to improve the molluscicidal activity and efficiency against O. hupensis snails.
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Affiliation(s)
- J He
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), National Health Commission Key Laboratory of Parasite and Vector Biology, WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Shanghai 200025, China
- Co-first authors
| | - Y Zhang
- Yunnan Institute of Endemic Diseases Control and Prevention, Dali, Yunnan 671000, China
- Co-first authors
| | - Z Bao
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), National Health Commission Key Laboratory of Parasite and Vector Biology, WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Shanghai 200025, China
| | - S Guo
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), National Health Commission Key Laboratory of Parasite and Vector Biology, WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Shanghai 200025, China
| | - C Cao
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), National Health Commission Key Laboratory of Parasite and Vector Biology, WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Shanghai 200025, China
| | - C Du
- Yunnan Institute of Endemic Diseases Control and Prevention, Dali, Yunnan 671000, China
| | - J Cha
- Weishan County Station of Schistosomiasis Control, Yunnan Province, China
| | - J Sun
- Yunnan Institute of Endemic Diseases Control and Prevention, Dali, Yunnan 671000, China
| | - Y Dong
- Yunnan Institute of Endemic Diseases Control and Prevention, Dali, Yunnan 671000, China
| | - J Xu
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), National Health Commission Key Laboratory of Parasite and Vector Biology, WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Shanghai 200025, China
| | - S Li
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), National Health Commission Key Laboratory of Parasite and Vector Biology, WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Shanghai 200025, China
- School of Global Health, School of Global Health, Shanghai Jiao Tong University School of Medicine and Chinese Centre for Tropical Diseases Research, Shanghai 200025, China
| | - X Zhou
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), National Health Commission Key Laboratory of Parasite and Vector Biology, WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Shanghai 200025, China
- School of Global Health, School of Global Health, Shanghai Jiao Tong University School of Medicine and Chinese Centre for Tropical Diseases Research, Shanghai 200025, China
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Bao Z, Liu ZQ, He PY, Adali J, Yang YC, Wulasihan M. 17β-estradiol regulates adenosine triphosphate-binding cassette transporters A1 expression via estrogen receptor A to increase macrophage cholesterol efflux. J Physiol Pharmacol 2023; 74. [PMID: 38085517 DOI: 10.26402/jpp.2023.5.05] [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] [Received: 04/13/2023] [Accepted: 10/31/2023] [Indexed: 12/18/2023]
Abstract
The liver is the focus of research on the effects of estrogen on cholesterol metabolism. Few studies have investigated the effects of estrogen on macrophages despite the significance of cells in atherosclerosis. The purpose of this study is to examine the effect of estrogen on macrophage cholesterol efflux. Macrophage cholesterol efflux, oil red O staining, RT-qPCR, Western blotting analyses were used to determine cholesterol metabolize and the expressions of adenosine triphosphate (ATP)-binding cassette transporter G1 (ABCG1) and ATP-binding cassette transporter A1 (ABCA1) in J774A.1 cells, and the effect of these treatments was compared to without adding 17β-estradiol (E2). Gain and loss of estrogen receptor alpha (ERα), liver X receptor α (LXRα) were conducted to study interactions between E2, ERα, LXRα and ABCA. Finally, in mice, we validate the relationship between ERα and ABCA1. E2 increases cholesterol efflux from macrophages and decreases the formation of lipid droplets and positively regulates the expression of ABCA1. This suggests that estrogen receptors (ERs) directly regulate ABCA1 translation. We suppressed ERα, which decreased the mRNA and protein expression of ABCA1. At the mRNA level, E2 treatment could partially counteract these phenomena, but not at the protein level. ABCA1 expression decreased after LXRα was inhibited. This suggests that ABCA1 translation is directly regulated by ERα. In the ovariectomized mouse model of ABCA1 protein expression was significantly reduced in the peritoneal macrophages of the ovariectomy (OVX) group. ABCA1 protein expression was greater in the E2+OVX group than in the OVX group. E2 contributes to the positive regulation of ABCA1 expression and promotes cholesterol efflux in macrophages by binding to ERα. The effect is independent of ABCA1 transcription regulation by LXRα.
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Affiliation(s)
- Z Bao
- Department of Heart Internal Medicine Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, XinJiang, China
| | - Z-Q Liu
- Department of Heart Internal Medicine Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, XinJiang, China
| | - P-Y He
- Department of Coronary Heart Disease Department 2, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, XinJiang, China
| | - J Adali
- Department of Heart Internal Medicine Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, XinJiang, China
| | - Y-C Yang
- Department of Heart Internal Medicine Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, XinJiang, China
| | - M Wulasihan
- Department of Heart Internal Medicine Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, XinJiang, China.
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Zheng L, Zhao Y, Bao Z, Xu P, Jia Y, Wang Y, Yang P, Shi X, Wu Q, Zheng H. High-Valence Mo Doping and Oxygen Vacancy Engineering to Promote Morphological Evolution and Oxygen Evolution Reaction Activity. ACS Appl Mater Interfaces 2023; 15:43953-43962. [PMID: 37682728 DOI: 10.1021/acsami.3c10238] [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: 09/10/2023]
Abstract
The rational design of high-efficiency, low-cost electrocatalysts for electrochemical water oxidation in alkaline media remains a huge challenge. Herein, combined strategies of metal doping and vacancy engineering are employed to develop unique Mo-doped cobalt oxide nanosheet arrays. The Mo dopants exist in the form of high-valence Mo6+, and the doping amount has a significant effect on the structure morphology, which transforms from 1D nanowires/nanobelts to 2D nanosheets and finally 3D nanoflowers. In addition, the introduction of vast oxygen vacancies helps to modulate the electronic states and increase the electronic conductivity. The optimal catalyst MoCoO-3 exhibits greatly increased active sites and enhanced reaction kinetics. It gives a dramatically lower overpotential at 50 mA cm-2 (288 mV), much smaller than that of the undoped counterpart (418 mV) and comparable to those of the recently reported electrocatalysts. Density functional theory results further verify that the increased electronic conductivity and optimized adsorption energy toward oxygen evolution reaction intermediates are mainly responsible for the enhanced catalytic activity. Moreover, the assembled two-electrode electrolyzer (MoCoO-3||Pt/C) exhibits superior performance with the cell potential decreased by 233 mV to reach a current density of 50 mA cm-2 with respect to the benchmark counterpart catalysts (RuO2||Pt/C). This work might contribute to the rational design of effective, low-cost electrocatalyst materials by combining multiple strategies.
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Affiliation(s)
- Lingxia Zheng
- Department of Applied Chemistry, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, Zhejiang University of Technology, Hangzhou 310014, P. R. China
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Yujuan Zhao
- Department of Applied Chemistry, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Zhenyu Bao
- Department of Applied Chemistry, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Penghui Xu
- Department of Applied Chemistry, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Yi Jia
- Department of Applied Chemistry, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, Zhejiang University of Technology, Hangzhou 310014, P. R. China
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Yongzhi Wang
- Department of Applied Chemistry, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Pengju Yang
- Department of Applied Chemistry, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Xiaowei Shi
- Department of Applied Chemistry, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, Zhejiang University of Technology, Hangzhou 310014, P. R. China
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Qi Wu
- School of Science and Institute of Oxygen Supply and Everest Research Institute, Tibet University, Lhasa, 850000, China
| | - Huajun Zheng
- Department of Applied Chemistry, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, Zhejiang University of Technology, Hangzhou 310014, P. R. China
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, P. R. China
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Bao Z, Zhao J, Huang P, Yong S, Wang X. A Deep Learning-Based Electromagnetic Signal for Earthquake Magnitude Prediction. Sensors (Basel) 2021; 21:s21134434. [PMID: 34203508 PMCID: PMC8272143 DOI: 10.3390/s21134434] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/18/2021] [Accepted: 06/24/2021] [Indexed: 11/24/2022]
Abstract
The influence of earthquake disasters on human social life is positively related to the magnitude and intensity of the earthquake, and effectively avoiding casualties and property losses can be attributed to the accurate prediction of earthquakes. In this study, an electromagnetic sensor is investigated to assess earthquakes in advance by collecting earthquake signals. At present, the mainstream earthquake magnitude prediction comprises two methods. On the one hand, most geophysicists or data analysis experts extract a series of basic features from earthquake precursor signals for seismic classification. On the other hand, the obtained data related to earth activities by seismograph or space satellite are directly used in classification networks. This article proposes a CNN and designs a 3D feature-map which can be used to solve the problem of earthquake magnitude classification by combining the advantages of shallow features and high-dimensional information. In addition, noise simulation technology and SMOTE oversampling technology are applied to overcome the problem of seismic data imbalance. The signals collected by electromagnetic sensors are used to evaluate the method proposed in this article. The results show that the method proposed in this paper can classify earthquake magnitudes well.
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Affiliation(s)
- Zhenyu Bao
- The Key Laboratory of Integrated Microsystems, Peking University Shenzhen Graduate School, Shenzhen 518055, China; (Z.B.); (S.Y.); (X.W.)
| | - Jingyu Zhao
- School of Electrical Automation and Information Engineering, Tianjin University, Tianjin 300072, China;
| | - Pu Huang
- School of Information Science and Engineering, Northeastern University, Shenyang 110819, China
- Correspondence:
| | - Shanshan Yong
- The Key Laboratory of Integrated Microsystems, Peking University Shenzhen Graduate School, Shenzhen 518055, China; (Z.B.); (S.Y.); (X.W.)
- Engineering Department, Shenzhen MSU-BIT University, Shenzhen 518172, China
| | - Xin’an Wang
- The Key Laboratory of Integrated Microsystems, Peking University Shenzhen Graduate School, Shenzhen 518055, China; (Z.B.); (S.Y.); (X.W.)
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Bao Z, Liu J, Hu Y, Li Y, Gu B, Zhu J, Zheng X, Wu M, Shen X, Alffenaar JW. Treatment outcomes for COVID-19: a prospective cohort study. Int J Tuberc Lung Dis 2021; 25:154-156. [PMID: 33656430 DOI: 10.5588/ijtld.20.0388] [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] Open
Affiliation(s)
- Z Bao
- Suzhou Fifth People's Hospital, Suzhou
| | - J Liu
- Suzhou Fifth People's Hospital, Suzhou
| | - Y Hu
- School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai, China
| | - Y Li
- Suzhou Fifth People's Hospital, Suzhou
| | - B Gu
- Suzhou Fifth People's Hospital, Suzhou
| | - J Zhu
- School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai, China
| | - X Zheng
- School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai, China
| | - M Wu
- Suzhou Fifth People's Hospital, Suzhou
| | - X Shen
- Suzhou Fifth People's Hospital, Suzhou
| | - J W Alffenaar
- Faculty of Medicine and Health, School of Pharmacy, University of Sydney, Sydney, NSW, Westmead Hospital, Sydney, NSW, Marie Bashir Institute of Infectious Diseases and Biosecurity, University of Sydney, Sydney, NSW, Australia
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Bao Z, Wang LJ, He K, Lin X, Yu T, Li J, Gong J, Xiang G. High expression of ACE2 in the human lung leads to the release of IL6 by suppressing cellular immunity: IL6 plays a key role in COVID-19. Eur Rev Med Pharmacol Sci 2021; 25:527-540. [PMID: 33506945 DOI: 10.26355/eurrev_202101_24425] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
OBJECTIVE The pathogenesis of coronavirus disease 2019 (COVID-19) remains clear, and no effective treatment exists. SARS-CoV-2 is the virus that causes COVID-19 and uses ACE2 as a cell receptor to invade human cells. Therefore, ACE2 is a key factor to analyze the SARS-CoV-2 infection mechanism. MATERIALS AND METHODS We included 9,783 sequencing results of different organs, analyzed the effects of different ACE2 expression patterns in organs and immune regulation. RESULTS We found that ACE2 expression was significantly increased in the lungs and digestive tract. The cellular immunity of individuals with elevated ACE2 expression is activated, whereas humoral immunity is dampened, leading to the release of many inflammatory factors dominated by IL6. Furthermore, by studying the sequencing results of SARS-CoV-2-infected and uninfected cells, IL6 was found to be an indicator of a significant increase in the number of infected cells. However, although patients with high expression of ACE2 will release many inflammatory factors dominated by IL6, cellular immunity in the colorectum is significantly activated. This effect may explain why individuals with SARS-CoV-2 infection have severe lung symptoms and digestion issues, which are important causes of milder symptoms. CONCLUSIONS This finding indicates that ACE2 and IL6 inhibitors have important value in COVID-19.
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Affiliation(s)
- Z Bao
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, P.R. China.
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Zhang X, Wen C, Tang C, Liu S, Wen Y, Wang Y, Bao Z, Luo S. Study on nonlinear constitutive model of skin under compression load over a wide range of strain rates. Acta Bioeng Biomech 2021; 23:161-171. [PMID: 37341098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2023]
Abstract
PURPOSE In wound ballistics, skin has obvious blocking effect in the biological target penetration of projectiles. An analytical description of skin mechanical properties under compression can set the basis for the numerical simulation and the evaluation of blocking effect. METHODS In this study, an improved three-parameter solid visco-elastic model was proposed to describe the skin creep phenomenon. And then combined with Maxwell and Ogden model, a new nonlinear skin constitutive model, consisting of hyper-elastic unit, creep unit and relaxation unit in parallel, was established. Here, we examine the material properties of freshly harvested porcine skin in compression at strain rates from 0.01/s to 4000/s. RESULTS The model is verified by comparison with the experimental results by our test and that in the literature at different strain rates. CONCLUSIONS It shows that calculated results of the constitutive model agree well with the experiment data at extremely low to high strain rates, which is useful for the description of the heterogeneous, nonlinear viscoelastic, relaxation and creep mechanical response of skin under compression.
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Affiliation(s)
- Xiaoping Zhang
- School of Mechanical Engineering, Nantong University, Nantong, China
| | - Cun Wen
- School of Mechanical Engineering, Nantong University, Nantong, China
| | - Chengli Tang
- School of Mechanical Engineering, Nantong University, Nantong, China
| | - Susu Liu
- School of Mechanical Engineering, Nantong University, Nantong, China
| | - Yaoke Wen
- School of Mechanical Engineering, Nanjing University of Science & Technology, Nanjing, China
| | - Yaping Wang
- School of Mechanical Engineering, Nanjing University of Science & Technology, Nanjing, China
| | - Zhenyu Bao
- School of Mechanical Engineering, Nanjing University of Science & Technology, Nanjing, China
| | - Shaomin Luo
- School of Aerospace Engineering, Guizhou Institute of Technology, Guiyang, China
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Zhang T, Wang Q, Shi W, Sheng T, Liu J, Zhao J, Huang Y, Xia Y, Liu Z, Dai R, Bao Z, Wu P, Xu S, Luo L. Achieving Universal Wearing of Face Masks During the COVID-19 Pandemic: A Practical Solution from Shanghai, China. Risk Manag Healthc Policy 2020; 13:3067-3077. [PMID: 33376429 PMCID: PMC7762766 DOI: 10.2147/rmhp.s280672] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 11/17/2020] [Indexed: 12/13/2022] Open
Abstract
Background Face masks are basic protective equipment for preventing respiratory infectious diseases. The measures to properly dispose of and allocate face masks during the early stage of an epidemic caused by respiratory infectious diseases deserve worldwide attention. Methods A qualitative research approach was used to document the practice of a citywide face mask–wearing strategy of the Shanghai Municipal Government (called the “Shanghai solution” in this article). Based on data from government work documents, an online face mask–allocation and sales system was built to offer real-time updates of face-mask appointments and sales information in all designated pharmacies and neighborhood committees in Shanghai. Results In the Shanghai solution, a total of 24.8 million residents in 6,031 committees were covered, in order to achieve universal wearing of face masks during the COVID-19 crisis. Up to 110 million face masks were dispensed to residents in six rounds of face-mask allocation during February to April. This practical experience in Shanghai solved two key problems (insufficient face-mask capacity, protection of vulnerable population) with the supply of face masks by addressing four essential characteristics: overall coordination, on-demand distribution, efficient distribution, and technical support. Conclusion The practice of the citywide face mask–supply strategy of Shanghai could provide several pointers for management of a shortage of emergency materials, dispatch, and transport to other countries during the pandemic.
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Affiliation(s)
- Tiantian Zhang
- School of Public Health, Fudan University, Shanghai 200032, People's Republic of China
| | - Qian Wang
- School of Public Health, Fudan University, Shanghai 200032, People's Republic of China
| | - Wenming Shi
- School of Public Health, Fudan University, Shanghai 200032, People's Republic of China
| | - Tao Sheng
- School of Computer Science and Technology, Fudan University, Shanghai 201203, People's Republic of China
| | - Jiaxing Liu
- School of Software, Fudan University, Shanghai 201203, People's Republic of China
| | - Jiejin Zhao
- Shanghai Municipal Commission of Commerce, Shanghai 200125, People's Republic of China
| | - Yuanmin Huang
- School of Software, Fudan University, Shanghai 201203, People's Republic of China
| | - Yutian Xia
- School of Software, Fudan University, Shanghai 201203, People's Republic of China
| | - Zhanyi Liu
- Shanghai Civil Affairs Bureau, Shanghai 200125, People's Republic of China
| | - Ruiming Dai
- School of Public Health, Fudan University, Shanghai 200032, People's Republic of China
| | - Zhenyu Bao
- School of Computer Science and Technology, Fudan University, Shanghai 201203, People's Republic of China
| | - Ping Wu
- School of Public Health, Fudan University, Shanghai 200032, People's Republic of China
| | - Site Xu
- School of Public Health, Fudan University, Shanghai 200032, People's Republic of China
| | - Li Luo
- School of Public Health, Fudan University, Shanghai 200032, People's Republic of China.,Key Laboratory of Public Health Safety of the Ministry of Education and Key Laboratory of Health Technology Assessment of the Ministry of Health, Fudan University, Shanghai 200032, People's Republic of China
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10
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Bao Z, Gu B, Liu J, Zhu J, Alffenaar JW, Hu Y, Shen X. Successful treatment of patients severely ill with COVID-19. Int J Tuberc Lung Dis 2020; 24:650-653. [PMID: 32553001 DOI: 10.5588/ijtld.20.0232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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] Open
Affiliation(s)
- Z Bao
- The Fifth People's Hospital of Suzhou, Infectious Disease Hospital Affiliated to Soochow University, Suzhou, China
| | - B Gu
- The Fifth People's Hospital of Suzhou, Infectious Disease Hospital Affiliated to Soochow University, Suzhou, China
| | - J Liu
- The Fifth People's Hospital of Suzhou, Infectious Disease Hospital Affiliated to Soochow University, Suzhou, China
| | - J Zhu
- School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai, China
| | - J-W Alffenaar
- Faculty of Medicine and Health, School of Pharmacy, University of Sydney, Sydney, NSW, Australia, Westmead Hospital, Sydney, NSW, Australia, Marie Bashir Institute of Infectious Diseases and Biosecurity, University of Sydney, Sydney, NSW, Australia, ,
| | - Y Hu
- School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai, China
| | - X Shen
- The Fifth People's Hospital of Suzhou, Infectious Disease Hospital Affiliated to Soochow University, Suzhou, China
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11
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Bao Z, Yang Z, Huang Z, Zhou Y, Cui Q, Dong D. LncRNADisease 2.0: an updated database of long non-coding RNA-associated diseases. Nucleic Acids Res 2020; 47:D1034-D1037. [PMID: 30285109 PMCID: PMC6324086 DOI: 10.1093/nar/gky905] [Citation(s) in RCA: 375] [Impact Index Per Article: 93.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 09/25/2018] [Indexed: 12/17/2022] Open
Abstract
Mounting evidence suggested that dysfunction of long non-coding RNAs (lncRNAs) is involved in a wide variety of diseases. A knowledgebase with systematic collection and curation of lncRNA-disease associations is critically important for further examining their underlying molecular mechanisms. In 2013, we presented the first release of LncRNADisease, representing a database for collection of experimental supported lncRNA-disease associations. Here, we describe an update of the database. The new developments in LncRNADisease 2.0 include (i) an over 40-fold lncRNA-disease association enhancement compared with the previous version; (ii) providing the transcriptional regulatory relationships among lncRNA, mRNA and miRNA; (iii) providing a confidence score for each lncRNA-disease association; (iv) integrating experimentally supported circular RNA disease associations. LncRNADisease 2.0 documents more than 200 000 lncRNA-disease associations. We expect that this database will continue to serve as a valuable source for potential clinical application related to lncRNAs. LncRNADisease 2.0 is freely available at http://www.rnanut.net/lncrnadisease/.
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Affiliation(s)
- Zhenyu Bao
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai 200241, China.,Department of Biomedical Informatics, School of Basic Medical Sciences, MOE Key Lab of Cardiovascular Sciences, Center for Noncoding RNA Medicine, Peking University, Beijing 100190, China
| | - Zhen Yang
- Institute of Biomedical Sciences, Fudan University, Shanghai, 200032, China
| | - Zhou Huang
- Department of Biomedical Informatics, School of Basic Medical Sciences, MOE Key Lab of Cardiovascular Sciences, Center for Noncoding RNA Medicine, Peking University, Beijing 100190, China
| | - Yiran Zhou
- Department of Biomedical Informatics, School of Basic Medical Sciences, MOE Key Lab of Cardiovascular Sciences, Center for Noncoding RNA Medicine, Peking University, Beijing 100190, China
| | - Qinghua Cui
- Department of Biomedical Informatics, School of Basic Medical Sciences, MOE Key Lab of Cardiovascular Sciences, Center for Noncoding RNA Medicine, Peking University, Beijing 100190, China.,Center of Bioinformatics, Key Laboratory for Neuro-Information of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Dong Dong
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai 200241, China
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Ruan Q, Huang Y, Yang L, Li J, Gu W, Bao Z, Zhang X, Yu Z. Associations of Preoperative Irisin Levels of Paired Cerebrospinal Fluid and Plasma with Physical Dysfunction and Muscle Wasting Severity in Residents of Surgery Wards. J Nutr Health Aging 2020; 24:412-422. [PMID: 32242209 DOI: 10.1007/s12603-020-1343-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Myokine Irisin has been proposed to regulate metabolic homeostasis, which is related to chronic diseases or physical activity. However, whether irisin levels in paired cerebrospinal fruid (CSF), plasma and their ratio of inpatients, could use as biomarkers, and be independently related to the varying physical dysfunction, muscle wasting severity and chronic diseases with varying severe degrees, remain largely elusive. METHODS We conducted an observational study to assess the independent associations between irisin levels in paired cerebrospinal fruid (CSF), plasma and their ratio, and the independence in activities of daily life (ADLs), muscle wasting severity and chronic diseases with varying severe degrees among elderly Chinese in-patient subjects. RESULTS Among 217 inpatients in surgery wards with a mean age of 68.07 years (±15.94years), 31.3% of women and 68.7% of men were included in the study. Bivariate correlation analysis showed that Log transformed CSF and plasma irisin levels and their ratio were potential associated with age, fat%, muscle wasting time, ADLs, number of multimorbidity, the severity of bone mass loss and anemia. Regression models analysis indicated that CSF and plasma irisin levels and their ratio in inpatient individuals were independently associated with the independence in ADLs. Plasma irisin levels were independently related to the change of muscle wasting use. CONCLUSIONS Collectively, the evaluation of paired plasma and CSF irisin levels, and their ratio in in-patient individuals is intriguing candidates for the susceptibility of the independence in ADLs. Plasma irisin levels were positively associated with indepedence in ADLs, negatively related to muscle wasting severity, and could use as biomarkers for muscle wasting severity.
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Affiliation(s)
- Q Ruan
- Dr Zhuowei Yu, Shanghai Institute of Geriatrics and Gerontology, Shanghai Key Laboratory of Clinical Geriatrics, Department of Geriatrics, Huadong Hospital, and Research Center of Aging and Medicine, Shanghai Medical College, Fudan University, 221 West Yan An Road, Shanghai 200040, P.R. China, Tel: 86-21-62483180 Fax: 86-21-62484981
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13
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Cai F, Shao C, Zhang Y, Bao Z, Li Z, Shi G, Bao M, Zhang J. Identification and characterisation of a novel FT orthologous gene in London plane with a distinct expression response to environmental stimuli compared to PaFT. Plant Biol (Stuttg) 2019; 21:1039-1051. [PMID: 31192516 DOI: 10.1111/plb.13019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Accepted: 06/06/2019] [Indexed: 05/26/2023]
Abstract
FLOWERING LOCUS T (FT) is a key integrator of environmental signals and internal cues, and codes for florigen-like activity which regulates the transition from vegetative to reproductive growth in flowering plants. Unlike annual plants, perennial tree species undergo several years of vegetative growth prior to the transition to the reproductive stage, as characterised by the ability to form flower buds. Thereafter, trees in temperate regions typically display an annual growth cycle involving distinct vegetative growth, flowering and dormancy stages. In London plane (Platanus acerifolia Willd.), a FT-like gene has previously been identified. Here, we report the isolation of a novel FT orthologous gene, PaFTL, and investigate the functions of PaFT and PaFTL through the analysis of expression profiles and transgenic phenotypes. PaFT displayed the highest levels of expression during tree dormancy, and similarly elevated expression levels were seen under conditions of low temperature and short days (LT/SD). In contrast, PaFTL transcripts were up-regulated during the floral transition phase, the early stages of inflorescence development and throughout the main flowering period, whereas expression levels were low and variable during dormancy and in response to LT/SD treatments. Ectopic expression of 35s::PaFTL in tobacco produced a phenotype similar to that with PaFT, namely, advanced floral initiation. Overall, the results suggest that PaFT and PaFTL have both conserved and diverse functions in floral initiation, floral development and dormancy regulation.
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Affiliation(s)
- F Cai
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, Hubei, China
| | - C Shao
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Y Zhang
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Z Bao
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Z Li
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, Hubei, China
- College of Landscape Architecture, Central South University of Forestry and Technology, Changsha, Hunan, China
| | - G Shi
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, Hubei, China
| | - M Bao
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, Hubei, China
| | - J Zhang
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, Hubei, China
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Zhang P, Tu L, Liu R, Xu X, Bao Z, Xu P, Wang J, Li H, Zhou J, Wang Y. P1.01-106 Clinical Features and Tumor Immune Microenvironment Related to Acquired Resistance to EGFR-TKI in NSCLC Patients with EGFR Mutation. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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15
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Wang Z, Liu X, Wang Z, Bao Z, Zhang W, Zhang C, Jiang T. Identification of a Good-Prognosis IDH-Mutant-Like Population of Patients with Diffuse Gliomas. Curr Mol Med 2019; 17:518-526. [PMID: 29437008 DOI: 10.2174/1566524018666180212151429] [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] [Received: 08/11/2017] [Revised: 02/10/2018] [Accepted: 02/09/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND Isocitrate dehydrogenase (IDH) mutation is the initiating event that defines major clinical and prognostic classes of gliomas, but the potential mechanisms have not been well interpreted yet. The main objective of the current study was to better understand the underlying biology of IDH mutant gliomas as captured by gene expression profiles. METHODS RNA sequencing data of WHO grade II-IV gliomas from the Chinese Glioma Genome Atlas (CGGA, N=325) were used to assess differentially expressed genes between IDH mutant and wild type gliomas and to construct a gene expression-based classifier to detect IDH mutant samples with high sensitivity and specificity. The classifier was validated in independent RNA sequencing data from the Cancer Genome Atlas (TCGA, N=699), and the prognostic value of the classifier was also assessed in the two datasets. RESULTS A 58-gene-pair IDH mutation signature was developed by using the top scoring pairs algorithm. In CGGA dataset, 98.5% and 100% IDH mutant samples were also predicted to be mutant by gene expression based IDH status in grade II-III and grade IV gliomas, respectively. In TCGA dataset, the proportions were 99.8% and 100%, respectively. The signature remained to be a prognostic marker in multivariate cox analysis both in CGGA and TCGA datasets. CONCLUSION A characteristic gene expression signature is associated with and accurately predicts IDH mutation status. This suggests a common biology between these tumors and adds prognostic and biologic information that is not captured by the mutation status alone. These results may help in population stratification for clinical trials. As RNA-seq is more and more prevalent and cost-effective in glioma molecular diagnosis, this gene signature would provide a precise method to predict IDH mutation status with RNA-seq data.
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Affiliation(s)
- Z Wang
- Department of Molecular Neuropathology, Beijing Neurosurgical Institute, Capital Medical University, Beijing 100050, China
| | - X Liu
- Department of Molecular Neuropathology, Beijing Neurosurgical Institute, Capital Medical University, Beijing 100050, China
| | - Z Wang
- Department of Molecular Neuropathology, Beijing Neurosurgical Institute, Capital Medical University, Beijing 100050, China
| | - Z Bao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China
| | - W Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China
| | - C Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China
| | - T Jiang
- Department of Molecular Neuropathology, Beijing Neurosurgical Institute, Capital Medical University, Beijing 100050, China.,Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China.,Center of Brain Tumor, Beijing Institute for Brain Disorders, Beijing 100069, China.,China National Clinical Research Center for Neurological Diseases, Beijing 100050, China
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Bao Z, Zhang W, Dong D. A potential prognostic lncRNA signature for predicting survival in patients with bladder urothelial carcinoma. Oncotarget 2018; 8:10485-10497. [PMID: 28060759 PMCID: PMC5354674 DOI: 10.18632/oncotarget.14441] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Accepted: 12/08/2016] [Indexed: 02/01/2023] Open
Abstract
Increasing evidence has highlighted the critical roles of long non-coding RNA (lncRNA) in cancer development and progression. However, the prognostic power of expression-based lncRNA signature for predicting overall survival in patients with Bladder Urothelial Carcinoma (BLCA) has not been investigated. Here, we performed a comprehensive analysis for lncRNA expression profiles and corresponding clinical information of 234 BLCA patients from The Cancer Genome Atlas (TCGA). We established a set of four-lncRNAs that were significantly associated with BLCA patients’ survival. Using the prognostic four-lncRNA signature, we successfully classified the BLCA patients into high-risk and low-risk groups, and the prognostic power of the four-lncRNA signature was further validated in the testing dataset and entire dataset. Multivariate Cox regression and stratified analyses demonstrated that the prognostic power of the four-lncRNA signature was independent of other clinical variables. Functional enrichment analyses suggested the four prognostic lncRNAs may be involved in known BLCA-related biological processes and pathways. Our results demonstrated that the four-lncRNA signature could be novel independent biomarkers for predicting survival in patients with BLCA.
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Affiliation(s)
- Zhenyu Bao
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai, China
| | - Weitao Zhang
- Urology Surgery Department, Affiliated Hospital of Taishan Medical University, Shandong, China
| | - Dong Dong
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai, China
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Bao Z. LONG-TERM LIFESTYLE INTERVENTIONS IN MIDDLE-AGED AND ELDERLY MEN WITH NONALCOHOLIC FATTY LIVER DISEASE. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1197] [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: 11/14/2022] Open
Affiliation(s)
- Z. Bao
- Department of Geriatrics, Shanghai Institute of Geriatrics and Gerontology, Shanghai, China
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Affiliation(s)
- Q. Ruan
- Shanghai Institute of Geriatrics and Gerontology, Shanghai Key Laboratory of Clinical Geriatrics, Department of Geriatrics, Huadong Hospital, and Research Center of Aging and Medicine, Shanghai Medical College, Fudan University, Shanghai 200040, China., Shanghai, China,
| | - L. Yang
- Department of anesthesiology Huadong Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - J. Ruan
- Tongji medical college, Huazhong University of Science & Technology, Wuhan, China,
| | - W. Gu
- Department of anesthesiology Huadong Hospital, Shanghai Medical College, Fudan University, Shanghai, China,
| | - Y. Zhang
- Department of Gastroenterology, Huadong Hospital, Shanghai Medical College, Fudan University, Shanghai, China,
| | - Z. Bao
- Shanghai Institute of Geriatrics and Gerontology, Shanghai Key Laboratory of Clinical Geriatrics, Department of Geriatrics, Huadong Hospital, and Research Center of Aging and Medicine, Shanghai Medical College, Fudan University, Shanghai 200040, China., Shanghai, China,
- Department of Gastroenterology, Huadong Hospital, Shanghai Medical College, Fudan University, Shanghai, China,
| | - Z. Yu
- Shanghai Institute of Geriatrics and Gerontology, Shanghai Key Laboratory of Clinical Geriatrics, Department of Geriatrics, Huadong Hospital, and Research Center of Aging and Medicine, Shanghai Medical College, Fudan University, Shanghai 200040, China., Shanghai, China,
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Wang L, Ruan Q, Zhang Y, Bao Z, Yu Z. SARCOPENIC OBESITY INDUCED BY SHORT-TERM HIGH-FAT FEEDING IN AGED RAT. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1950] [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: 11/14/2022] Open
Affiliation(s)
- L. Wang
- Shanghai Institute of Geriatrics and Gerontology, Shanghai Key Laboratory of Clinical Geriatrics, Shanghai, China,
- Department of Geriatrics, Huadong Hospital, and Research Center of Aging and Medicine, Shanghai Medical College, Fudan University,Shanghai 200040, China, Shanghai, China,
| | - Q. Ruan
- Shanghai Institute of Geriatrics and Gerontology, Shanghai Key Laboratory of Clinical Geriatrics, Shanghai, China,
- Department of Geriatrics, Huadong Hospital, and Research Center of Aging and Medicine, Shanghai Medical College, Fudan University,Shanghai 200040, China, Shanghai, China,
| | - Y. Zhang
- Department of Gastroenterology, Huadong Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Z. Bao
- Shanghai Institute of Geriatrics and Gerontology, Shanghai Key Laboratory of Clinical Geriatrics, Shanghai, China,
- Department of Geriatrics, Huadong Hospital, and Research Center of Aging and Medicine, Shanghai Medical College, Fudan University,Shanghai 200040, China, Shanghai, China,
- Department of Gastroenterology, Huadong Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Z. Yu
- Shanghai Institute of Geriatrics and Gerontology, Shanghai Key Laboratory of Clinical Geriatrics, Shanghai, China,
- Department of Geriatrics, Huadong Hospital, and Research Center of Aging and Medicine, Shanghai Medical College, Fudan University,Shanghai 200040, China, Shanghai, China,
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Cui X, Chen K, Xing H, Yang Q, Krishna R, Bao Z, Wu H, Zhou W, Dong X, Han Y, Li B, Ren Q, Zaworotko MJ, Chen B. Pore chemistry and size control in hybrid porous materials for acetylene capture from ethylene. Science 2016; 353:141-4. [DOI: 10.1126/science.aaf2458] [Citation(s) in RCA: 839] [Impact Index Per Article: 104.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 05/05/2016] [Indexed: 01/18/2023]
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Bao Z, Li Y, Zhang J, Li L, Zhang P, Huang F. Effect of particle size of wheat on nutrient digestibility, growth performance, and gut microbiota in growing pigs. Livest Sci 2016. [DOI: 10.1016/j.livsci.2015.11.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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22
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Bao Z, Xie J. CLT for Linear Spectral Statistics of Hermitian Wigner Matrices with General Moment Conditions. Theory Probab Appl 2016. [DOI: 10.1137/s0040585x97t987624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Li L, Zhang P, Zheng P, Bao Z, Wang Y, Huang F. Hepatic cumulative net appearance of amino acids and related gene expression response to different protein diets in pigs. Livest Sci 2015. [DOI: 10.1016/j.livsci.2015.10.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Tee BCK, Chortos A, Berndt A, Nguyen AK, Tom A, McGuire A, Lin ZC, Tien K, Bae WG, Wang H, Mei P, Chou HH, Cui B, Deisseroth K, Ng TN, Bao Z. A skin-inspired organic digital mechanoreceptor. Science 2015; 350:313-6. [DOI: 10.1126/science.aaa9306] [Citation(s) in RCA: 591] [Impact Index Per Article: 65.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Bao Z. On Asymptotic Expansion and Central Limit Theorem of Linear Eigenvalue Statistics for Sample Covariance Matrices when ${N/M\rightarrow0}$. Theory Probab Appl 2015. [DOI: 10.1137/s0040585x97t987089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Bao Z, Zhang W, Chen Y, Xu J, Cui X. Densities, viscosities and volumetric properties of BF3·anisole and BF3·phenetole complexes at T=(283.15 to 303.15)K. J Mol Liq 2014. [DOI: 10.1016/j.molliq.2014.06.011] [Citation(s) in RCA: 3] [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: 10/25/2022]
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Jia ML, Liu CX, Wang J, Bao S, Bao Z. Catalytic oxidation of glyoxal to glyoxalic acid over Au-Pd alloy nanoparticles on hydrotalcite. Kinet Catal 2014. [DOI: 10.1134/s0023158414050061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Bao Z, Zhang W, Cui X, Xu J. Design, Optimization and Control of Extractive Distillation for the Separation of Trimethyl Borate–Methanol. Ind Eng Chem Res 2014. [DOI: 10.1021/ie502022m] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhenyu Bao
- Department of Chemical Engineering, Tianjin University, Tianjin 300072, China
| | - Weijiang Zhang
- Department of Chemical Engineering, Tianjin University, Tianjin 300072, China
| | - Xianbao Cui
- Department of Chemical Engineering, Tianjin University, Tianjin 300072, China
| | - Jiao Xu
- Department of Chemical Engineering, Tianjin University, Tianjin 300072, China
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Bie L, Li Y, Yuan H, Bondy M, Bainbridge M, Jhangiani S, Jalali A, Plon SE, Armstrong G, Bernstein J, Claus E, Davis F, Houlston R, Il'yasova D, Jenkins R, Johansen C, Lachance D, Lai R, Lau C, Merrell R, Olson S, Sadetzki S, Schildkraut J, Shete S, Barnholtz-Sloan J, Wrensch M, Consortium TG, Melin B, Gibbs RA, Haberler C, Czech T, Chocholous M, Dorfer C, Slavc I, Hayashi S, Sasaki H, Kimura T, Nakamura T, Miwa T, Hirose Y, Yoshida K, Jalali A, Bainbridge M, Jhangiani S, Plon SE, Armstrong G, Bernstein J, Claus E, Davis F, Houlston R, Il'yasova D, Jenkins R, Johansen C, Lachance D, Lai R, Lau C, Merrell R, Olson SH, Sadetzki S, Schildkraut J, Shete S, Barnholtz-Sloan J, Wrensch M, Melin B, Gibbs RA, Bondy M, Jenkins R, Wrensch M, Kollmeyer T, Armstrong G, Olson S, Lai R, Lachance D, Lau C, Claus E, Barnholtz-Sloan J, Il'yasova D, Schildkraut J, Houlston R, Shete S, Bernstein J, Davis F, Merrell R, Johansen C, Sadetzki S, Consortium TG, Melin B, Bondy M, Palmer J, Li J, Kenyon L, Andrews D, Kim L, Glass J, Werner-Wasik M, Shi W, Takayanagi S, Mukasa A, Aihara K, Saito K, Otani R, Tanaka S, Nakatomi H, Aburatani H, Ichimura K, Ueki K, Saito N, Walsh KM, Decker PA, Eckel-Passow JE, Molinaro AM, Hansen HM, Rice T, Zheng S, Kollmeyer T, Berger MS, Chang SM, Prados MD, Rynearson A, Caron A, Kosel ML, Lachance DH, O'Neill BP, Giannini C, Wiencke JK, Jenkins RB, Wrensch MR, Wang Z, Bao Z, Jiang T, Wang Z, Bao Z, Jiang T. MOLECULAR EPIDEMIOLGOY. Neuro Oncol 2013. [DOI: 10.1093/neuonc/not180] [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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Fu X, Sun Y, Wang J, Xing Q, Zou J, Li R, Wang Z, Wang S, Hu X, Zhang L, Bao Z. Sequencing-based gene network analysis provides a core set of gene resource for understanding thermal adaptation in Zhikong scallop Chlamys farreri. Mol Ecol Resour 2013; 14:184-98. [PMID: 24128079 DOI: 10.1111/1755-0998.12169] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [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: 06/24/2013] [Revised: 08/28/2013] [Accepted: 09/07/2013] [Indexed: 12/14/2022]
Abstract
Marine organisms are commonly exposed to variable environmental conditions, and many of them are under threat from increased sea temperatures caused by global climate change. Generating transcriptomic resources under different stress conditions are crucial for understanding molecular mechanisms underlying thermal adaptation. In this study, we conducted transcriptome-wide gene expression profiling of the scallop Chlamys farreri challenged by acute and chronic heat stress. Of the 13 953 unique tags, more than 850 were significantly differentially expressed at each time point after acute heat stress, which was more than the number of tags differentially expressed (320-350) under chronic heat stress. To obtain a systemic view of gene expression alterations during thermal stress, a weighted gene coexpression network was constructed. Six modules were identified as acute heat stress-responsive modules. Among them, four modules involved in apoptosis regulation, mRNA binding, mitochondrial envelope formation and oxidation reduction were downregulated. The remaining two modules were upregulated. One was enriched with chaperone and the other with microsatellite sequences, whose coexpression may originate from a transcription factor binding site. These results indicated that C. farreri triggered several cellular processes to acclimate to elevated temperature. No modules responded to chronic heat stress, suggesting that the scallops might have acclimated to elevated temperature within 3 days. This study represents the first sequencing-based gene network analysis in a nonmodel aquatic species and provides valuable gene resources for the study of thermal adaptation, which should assist in the development of heat-tolerant scallop lines for aquaculture.
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Affiliation(s)
- X Fu
- Key Laboratory of Marine Genetics and Breeding (MGB), Ministry of Education, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
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Zhang G, Zou J, Liu F, Bao Z, Dong F, Huang Y, Yin S. The efficacy of moxifloxacin-based triple therapy in treatment of Helicobacter pylori infection: a systematic review and meta-analysis of randomized clinical trials. Braz J Med Biol Res 2013; 46:607-13. [PMID: 23903685 PMCID: PMC3859334 DOI: 10.1590/1414-431x20132817] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2012] [Accepted: 04/25/2013] [Indexed: 12/18/2022] Open
Abstract
Recent evidence shows that moxifloxacin could exert an antimicrobial effect
against Helicobacter pylori in both in vitro
and in vivo models. To systematically evaluate whether
moxifloxacin-containing triple therapy could improve eradication rates and
reduce side effects in first-line or second-line anti-H. pylori
treatment, eligible articles were identified by searches of electronic
databases. We included all randomized trials comparing moxifloxacin-based triple
therapy with standard triple or quadruple therapy during H.
pylori eradication treatment. Statistical analysis was performed
with Review Manager 5.0.10. Subanalysis/sensitivity analysis was also performed.
We identified seven randomized trials (n=1263). Pooled H.
pylori eradication rates were 79.03% (95%CI: 75.73-82.07) and
68.33% (95%CI: 64.44-72.04) for patients with moxifloxacin-based triple therapy
or with standard triple or quadruple therapy, respectively (intention-to-treat
analysis). The odds ratio (OR) was 1.82 (95%CI: 1.17-2.81), the occurrence of
total side effects was 15.23% (95%CI: 12.58-18.20) and 27.17% (95%CI:
23.64-30.92) for groups with or without moxifloxacin, and the summary OR was
0.45 (95%CI: 0.26-0.77). In subgroup analyses, we noted that the second-line
eradication rate in the moxifloxacin group was significantly higher than that in
the quadruple therapy group (73.33 vs 60.17%, OR: 1.78, 95%CI:
1.16-2.73, P<0.001). However, there was no difference in first-line
eradication treatment. Findings from this meta-analysis suggest that
moxifloxacin-based triple therapy is more effective and better tolerated than
standard triple or quadruple therapy. Therefore, a moxifloxacin-based triple
regimen should be used in the second-line treatment of H.
pylori infection.
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Affiliation(s)
- G Zhang
- Department of Gastroenterology, Huadong Hospital, Fudan University, Shanghai, China
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Zhang B, Bao Z. Dynamical system for computing the eigenvectors associated with the largest eigenvalue of a positive definite matrix. ACTA ACUST UNITED AC 2012; 6:790-1. [PMID: 18263367 DOI: 10.1109/72.377989] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A dynamical system for computing the largest eigenpair of a given positive matrix is introduced. Certain qualitative properties of the proposed system are analyzed in detail. The authors' results suggest that the weight-bounding term in PCA algorithms for extracting the first principal component could assume a class of forms.
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Affiliation(s)
- B Zhang
- Dept. of Comput. Sci., Changsha Inst. of Technol., Hunan
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Nanney AD, Adel JG, Smith TR, Chandler JP, Kimmell KT, Walter K, Zacharia BE, Deibert C, Malone HR, Sonabend AM, Neugut AI, Spencer B, Bruce JN, Wang Y, Li S, Zhang Z, Chen X, You G, Yang P, Yan W, Bao Z, Yao K, Liu Y, Wang L, Jiang T, Farhoud MK, Ruge MI, Brandes AA, Ermani M, Fioravanti A, Andreoli A, Pozzati E, Bacci A, Bartolini S, Poggi R, Crisi G, Franceschi E, Recinos PF, Grabowski MM, Nowacki AS, Thompson N, Vogelbaum MA, Sun P, Krueger D, Liu Z, Kohrman M, Dagens AB, Rachinger W, Kunz M, Eigenbrod S, Lutz J, Tonn JC, Kreth FW, Duong HT, Chaloner C, Bordo G, Eisenberg A, Rosenthal K, Sim MS, Boasberg P, Faries MB, Hamid O, Kelly DF, Kreth FW, Thon N, Simon M, Westphal M, Schackert G, Nikkhah G, Hentschel B, Pietsch T, Reifenberger G, Weller M, Tonn JC, Ironside S, Perry J, Tsao M, Mainprize T, Keith J, Laperrierre N, Paszat L, Sahgal A, Hoover JM, Nwojo M, Puffer R, Parney IF, Tanaka S, Nakada M, Hayashi Y, Hamada JI, Lee IY, Ekram T, Jain R, Scarpace L, Omodon M, Rock J, Rosenblum M, Kalkanis S, Amankulor NM, Kim JH, Tabar V, Peck KK, Holodny AI, Gutin PH, Kim CY, Kim YH, Kim T, Kim IK, Kim JW, Kim YH, Han JH, Park CK, Kim DG, Jung HW, Nonaka M, Bamba Y, Kanemura Y, Nakajima S. NEUROSURGICAL TREATMENTS. Neuro Oncol 2012. [DOI: 10.1093/neuonc/nos230] [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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Barman SN, Pan D, Vosgueritchian M, Zoombelt AP, Galli G, Bao Z. Dispersion of single walled carbon nanotubes in amidine solvents. Nanotechnology 2012; 23:344011. [PMID: 22885377 DOI: 10.1088/0957-4484/23/34/344011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The excellent electronic and material properties of single walled carbon nanotubes (SWNTs) makes this nanomaterial very attractive for incorporation into flexible and stretchable electronics. However, the widespread application of SWNTs in electronic devices is still limited. To purify, process and place SWNTs, appropriate solvents for dispersion are needed. However, a fundamental understanding of the reasons why certain solvents are capable of dispersing SWNTs is still missing. Here we report on two new potential solvents containing amidine moieties, 1,8-diazabicycloundec-7-ene (DBU) and 1,5-diazabicyclo(4.3.0)non-5-ene (DBN). Even though these solvents' molecular structures differ by only two -CH(2)- groups, we found that DBU is capable of dispersing SWNTs, while DBN is not. We carried out density functional theory (DFT) calculations to investigate the interaction between DBU and DBN, and we elucidated the reasons for the different performances of the two solvents. DBU has a preferential edge-on interaction with the SWNT, thus allowing for a higher solvent coverage than DBN. In addition, the CH(2)-SWNT interaction present for DBU substantially increases the adsorption energy compared to DBN. Our results point to the important interplay between the interaction of pi electrons, nitrogen lone pairs and the -CH(2)- groups present in aprotic solvent molecules and the delocalized pi electrons in SWNTs.
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Affiliation(s)
- S N Barman
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
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You G, Huang L, Yang P, Zhang W, Yan W, Wang Y, Bao Z, Li S, Li S, Li G, Jiang T. Clinical and molecular genetic factors affecting postoperative seizure control of 183 Chinese adult patients with low-grade gliomas. Eur J Neurol 2011; 19:298-306. [DOI: 10.1111/j.1468-1331.2011.03509.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [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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Katz H, Li W, Lovinger A, Raju V, King J, Lin YY, Dodabalapur A, Bao Z, Rogers J. Facile Deposition Processes for Semiconducting Molecular Solids. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-598-bb9.6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTFilms of end-substituted dihexyl-α-sexithiophene and –quinquethiophene were cast from solutions in aromatic solvents onto SiO2 and polyimide dielectrics at moderately elevated temperatures and reduced pressure. X-ray diffraction showed perpendicular orientation for most samples, while electron and optical microscopy revealed considerable variations in grain sizes, spacings, and uniformity depending on deposition conditions. For favorable morphologies, thin film transistor (TFT) mobilities were as high as those typically obtained from vacuum-deposited films, in the range of 0.01-0.2 cm2/Vs, with on/off ratios >1000 in accumulation mode.
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Trzasko J, Manduca A, Bao Z, Stiving SO, McGee KP, Bernstein MA. SU-GG-I-147: Can Compressive Sensing Improve Low-Contrast Object Detectability in Accelerated MRI Applications? Med Phys 2010. [DOI: 10.1118/1.3468182] [Citation(s) in RCA: 2] [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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38
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Zhan A, Hu J, Hu X, Hui M, Wang M, Peng W, Huang X, Wang S, Lu W, Sun C, Bao Z. Construction of microsatellite-based linkage maps and identification of size-related quantitative trait loci for Zhikong scallop (Chlamys farreri). Anim Genet 2009; 40:821-31. [PMID: 19515089 DOI: 10.1111/j.1365-2052.2009.01920.x] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A Zhan
- Key Laboratory of Marine Genetics and Gene Resource Exploitation (Ocean University of China), Ministry of Education, Qingdao 266003, China.
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39
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Yan S, Ling Q, Bao Z, Chen Z, Yan S, Dong Z, Zhang B, Deng B. Cadmium accumulation in pak choi (Brassica chinensisL.) and estimated dietary intake in the suburb of Hangzhou city, China. Food Additives and Contaminants: Part B 2009; 2:74-8. [DOI: 10.1080/02652030902991649] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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40
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Shi L, Xu M, Liu J, Zhang Z, Bao Z, Wang Y, Wang C, Wang J. K(ATP) channels are involved in regulatory volume decrease in rat cardiac myocytes. Physiol Res 2008; 58:645-652. [PMID: 19093724 DOI: 10.33549/physiolres.931594] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Regulatory volume decrease (RVD) is essential for the survival of animal cells. The aim of this study was to observe the RVD process in rat ventricular myocytes, and to determine if the K(ATP) channels are involved in the RVD process in these cells. By using reverse transcriptase polymerase chain reaction and Western blot analysis, we demonstrated that there are two types of K(ATP) channels expressed in rat ventricular myocytes: Kir6.1 and Kir6.2. When rat cardiac myocytes were exposed to hypotonic solution, cell volume increased significantly within 15 min and then gradually recovered. This typical RVD process could be inhibited by a Cl(-) channel blocker (0.5 mM 9-anthracene-carboxylic acid?9-AC), a K(+) channel blocker (5.0 mM CsCl) and a K(ATP) channel blocker glibenclamide (10 microM). Electrophysiological results showed that hypotonic solution activated a whole-cell current, which had similar biophysical characteristics with K(ATP) opener (pinacidil)-induced currents. This current could be blocked by glibenclamide. Our data suggested that the RVD process in rat ventricular myocytes is dependent on the activation of K(+) channels, and that K(ATP) channels are involved in this process.
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Affiliation(s)
- L Shi
- Department of Physiology, School of Basic Medical Sciences, Department of Respiratory Medicine, Capital Medical University, Beijing 100069, China
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41
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Céolin D, Travnikova O, Bao Z, Piancastelli MN, Tanaka T, Hoshino M, Kato H, Tanaka H, Harries JR, Tamenori Y, Prümper C, Lischke T, Liu XJ, Ueda K. Study of the dissociation of nitrous oxide following resonant excitation of the nitrogen and oxygen K-shells. J Chem Phys 2008; 128:024306. [PMID: 18205449 DOI: 10.1063/1.2812926] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- D Céolin
- Department of Synchrotron Radiation Research, Institute of Physics, University of Lund, P.O. Box 118, SE-221 00 Lund, Sweden.
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42
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Kusari U, Bao Z, Cai Y, Ahmad G, Sandhage KH, Sneddon LG. Formation of nanostructured, nanocrystalline boron nitride microparticles with diatom-derived 3-D shapes. Chem Commun (Camb) 2007:1177-9. [PMID: 17347731 DOI: 10.1039/b614494b] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [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
The first use of diatom frustules as shape-dictating 3-D templates for the syntheses of nanostructured, nanocrystalline micro-particles of a non-oxide ceramic, boron nitride, is demonstrated.
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Affiliation(s)
- U Kusari
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
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44
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Zhitenev NB, Erbe A, Bao Z. Single- and multigrain nanojunctions with a self-assembled monolayer of conjugated molecules. Phys Rev Lett 2004; 92:186805. [PMID: 15169523 DOI: 10.1103/physrevlett.92.186805] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2003] [Indexed: 05/24/2023]
Abstract
Systematic conductivity measurements in nanoscale junctions containing a self-assembled monolayer of conjugated molecules are reported. Different conductivity mechanisms are identified depending on the granularity of the metal used as a substrate for assembling the monolayer. Unexpectedly, the energy scale controlling the dominant conductance channels is quite low in comparison with the molecular level spacing. In single-grain junctions, the dominant conductance mechanism is hopping with an energy scale of the order of 10-100 meV determined by the nature of the metal contacts. In the case of multigrain junctions, additional tunnel conductance is observed with low-energy Coulomb-blockade features.
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Affiliation(s)
- N B Zhitenev
- Bell Labs, Lucent Technologies, Murray Hill, NJ 07974, USA
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45
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Schön JH, Dodabalapur A, Bao Z, Kloc C, Schenker O, Batlogg B. Retraction: Gate-induced superconductivity in a solution-processed organic polymer film. Nature 2003; 422:92. [PMID: 12621441 DOI: 10.1038/nature01465] [Citation(s) in RCA: 2] [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: 11/08/2022]
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46
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Zhu D, Yin J, Bao Z, Cai L. [Studies on extensive application of bromoacetamide in various types of schistosomiasis endemic area]. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 2002; 16:53-7. [PMID: 12078209] [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: 02/25/2023]
Abstract
AIM To provide scientific basis for the popularization and application of molluscide bromoacetamide. METHODS Large scale application of bromoacetamide in twenty eight counties of four provinces was investigated and its molluscicidal effect in marshland and influence on marshland grass (Cyperus) and fishes were observed. RESULTS High molluscicidal effect of bromoacetamide was found against both snails and snail eggs in various environments. According to the results observed in different fields, the applicable dosage of bromoacetamide is 1.5-2 g/m2 for spraying method, 1.5-2 g/m3 for immersing method and 1.5-2 g/m for immersing in combination with shovelling the turf along the bank. When it was applied in fish-raising ponds or rivers at an applicable dosage, no toxic effect on fishes was found. The spraying dosage of bromoacetamide did not affect the rice seedling but it did some damage to the leaf-tips of marshland grass, however, the grass did turn green and grow. CONCLUSION Bromoacetamide has proved to be a safe and effective mulluscicde against Oncomelania under various field conditions.
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Affiliation(s)
- D Zhu
- Institute of Parasitic Diseases, Chinese Academy of Preventive Medicine
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47
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Abstract
A new method of fabricating small metal-molecule-metal junctions is developed, approaching the single-molecule limit. The conductance of different conjugated molecules in a broad temperature, source-drain, and gate voltage regime is reported. At low temperature, all investigated molecules display sharp conductance steps periodic in source-drain voltage. The position of these steps can be controlled by a gate potential. The spacing corresponds to the energy of the lowest molecular vibrations. These results show that the low-bias conductance of molecules is dominated by resonant tunneling through coupled electronic and vibration levels.
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Affiliation(s)
- N B Zhitenev
- Bell Laboratories, Lucent Technologies, Murray Hill, New Jersey 07974, USA
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48
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Abstract
Field-effect transistors based on two-component self-assembled monolayers of conjugated and insulating molecules were prepared; the conductance through them can be varied by more than three orders of magnitude by changing the applied gate bias. With very small ratios of conjugated to insulating molecules in the two-component monolayer, devices with only a few "electrically active" molecules can be achieved. At low temperatures, the peak channel conductance is quantized in units of 2e2/h (where e is the electron charge and h is Planck's constant). This behavior is indicative of transistor action in single molecules. On the basis of such single-molecule transistors, inverter circuits with gain are demonstrated.
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Affiliation(s)
- J H Schön
- Bell Laboratories, Lucent Technologies, 600 Mountain Avenue, Murray Hill, NJ 07974-0636, USA.
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49
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Abstract
The use of individual molecules as functional electronic devices was proposed in 1974 (ref. 1). Since then, advances in the field of nanotechnology have led to the fabrication of various molecule devices and devices based on monolayer arrays of molecules. Single molecule devices are expected to have interesting electronic properties, but devices based on an array of molecules are easier to fabricate and could potentially be more reliable. However, most of the previous work on array-based devices focused on two-terminal structures: demonstrating, for example, negative differential resistance, rectifiers, and re-configurable switching. It has also been proposed that diode switches containing only a few two-terminal molecules could be used to implement simple molecular electronic computer logic circuits. However, three-terminal devices, that is, transistors, could offer several advantages for logic operations compared to two-terminal switches, the most important of which is 'gain'-the ability to modulate the conductance. Here, we demonstrate gain for electronic transport perpendicular to a single molecular layer ( approximately 10-20 A) by using a third gate electrode. Our experiments with field-effect transistors based on self-assembled monolayers demonstrate conductance modulation of more than five orders of magnitude. In addition, inverter circuits have been prepared that show a gain as high as six. The fabrication of monolayer transistors and inverters might represent an important step towards molecular-scale electronics.
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Affiliation(s)
- J H Schön
- Bell Laboratories, Lucent Technologies, Murray Hill, New Jersey 07974, USA.
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50
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Meng H, Bao Z, Lovinger AJ, Wang BC, Mujsce AM. High field-effect mobility oligofluorene derivatives with high environmental stability. J Am Chem Soc 2001; 123:9214-5. [PMID: 11552851 DOI: 10.1021/ja016525o] [Citation(s) in RCA: 189] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- H Meng
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095, USA
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