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Xu WH, Huang YB, Zheng WW, Su SQ, Kanegawa S, Wu SQ, Sato O. Photo-induced valence tautomerism and polarization switching in mononuclear cobalt complexes with an enantiopure chiral ligand. Dalton Trans 2024; 53:2512-2516. [PMID: 38224229 DOI: 10.1039/d3dt03915c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
Light-induced polarization switchable molecular materials have attracted attention for decades owing to their potential remote manipulation and ultrafast responsiveness. Here we report a valence tautomeric (VT) complex with an enantiopure chiral ligand. By a suitable choice of counter anions, a significant improvement in photoconversion has been demonstrated, leading to novel photo-responsive polarization switching materials.
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Affiliation(s)
- Wen-Huang Xu
- Institute for Materials Chemistry and Engineering & IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Yu-Bo Huang
- Institute for Materials Chemistry and Engineering & IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Wen-Wei Zheng
- Institute for Materials Chemistry and Engineering & IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Sheng-Qun Su
- Institute for Materials Chemistry and Engineering & IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Shinji Kanegawa
- Institute for Materials Chemistry and Engineering & IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Shu-Qi Wu
- Institute for Materials Chemistry and Engineering & IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Osamu Sato
- Institute for Materials Chemistry and Engineering & IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
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Huang YB, Li JQ, Xu WH, Zheng W, Zhang X, Gao KG, Ji T, Ikeda T, Nakanishi T, Kanegawa S, Wu SQ, Su SQ, Sato O. Electrically Detectable Photoinduced Polarization Switching in a Molecular Prussian Blue Analogue. J Am Chem Soc 2024; 146:201-209. [PMID: 38134356 DOI: 10.1021/jacs.3c07545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2023]
Abstract
Light, a nondestructive and remotely controllable external stimulus, effectively triggers a variety of electron-transfer phenomena in metal complexes. One prime example includes using light in molecular cyanide-bridged [FeCo] bimetallic Prussian blue analogues, where it switches the system between the electron-transferred metastable state and the system's ground state. If this process is coupled to a ferroelectric-type phase transition, the generation and disappearance of macroscopic polarization, entirely under light control, become possible. In this research, we successfully executed a nonpolar-to-polar phase transition in a trinuclear cyanide-bridged [Fe2Co] complex crystal via directional electron transfer. Intriguingly, by exposing the crystal to the wavelength of light─785 nm─without any electric field─we can drive this ferroelectric phase transition to completely depolarize the crystal, during which a measurable electric current response can be detected. These discoveries signify an important step toward the realization of fully light-controlled ferroelectric memory devices.
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Affiliation(s)
- Yu-Bo Huang
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Jun-Qiu Li
- Chaozhou Three-circle (Group) Co., Ltd., Sanhuan Industrial District, Fengtang, Chaozhou 515646, Guangdong, China
| | - Wen-Huang Xu
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Wenwei Zheng
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Xiaopeng Zhang
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kai-Ge Gao
- College of Physical Science and Technology, Yangzhou University, Jiangsu 225009, PR China
| | - Tianchi Ji
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Taisuke Ikeda
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takumi Nakanishi
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Shinji Kanegawa
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Shu-Qi Wu
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Sheng-Qun Su
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Osamu Sato
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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Zhang X, Xu WH, Zheng W, Su SQ, Huang YB, Shui Q, Ji T, Uematsu M, Chen Q, Tokunaga M, Gao K, Okazawa A, Kanegawa S, Wu SQ, Sato O. Magnetoelectricity Enhanced by Electron Redistribution in a Spin Crossover [FeCo] Complex. J Am Chem Soc 2023; 145:15647-15651. [PMID: 37462373 DOI: 10.1021/jacs.3c02977] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
Molecular-based magnetoelectric materials are among the most promising materials for next-generation magnetoelectric memory devices. However, practical application of existing molecular systems has proven difficult largely because the polarization change is far lower than the practical threshold of the ME memory devices. Herein, we successfully obtained an [FeCo] dinuclear complex that exhibits a magnetic field-induced spin crossover process, resulting in a significant polarization change of 0.45 μC cm-2. Mössbauer spectroscopy and theoretical calculations suggest that the asymmetric structural change, coupled with electron redistribution, leads to the observed polarization change. Our approach provides a new strategy toward rationally enhancing the polarization change.
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Affiliation(s)
- Xiaopeng Zhang
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Wen-Huang Xu
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Wenwei Zheng
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Sheng-Qun Su
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Yu-Bo Huang
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Qirui Shui
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Tianchi Ji
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Mikoto Uematsu
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Qian Chen
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, 277-8581, Japan
| | - Masashi Tokunaga
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, 277-8581, Japan
| | - Kaige Gao
- College of Physical Science and Technology, Yangzhou University, Jiangsu, 225009, China
| | - Atsushi Okazawa
- Department of Electrical Engineering and Bioscience, Waseda University, Okubo 3-4-1, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Shinji Kanegawa
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Shu-Qi Wu
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Osamu Sato
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
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Xu WH, Wang LJ. Adherence to 24-h movement guidelines among Chinese children and adolescents with intellectual disabilities. J Intellect Disabil Res 2023. [PMID: 37092325 DOI: 10.1111/jir.13035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 03/02/2023] [Accepted: 03/30/2023] [Indexed: 05/03/2023]
Abstract
BACKGROUND Meeting 24-h movement guidelines for children and adolescents has been associated with improved health indicators. However, the literature examining adherence to 24-h movement guidelines among Chinese children and adolescents with intellectual disability (ID) remains lacking. This study aims to investigate the prevalence of meeting the 24-h movement guidelines and its socio-demographic correlates for this population. METHODS The sample includes 319 Chinese students with ID. Accelerometers are used to measure moderate-to-vigorous physical activity time and sleep duration. Questionnaires are adopted to measure screen time (ST) and demographic factors. Associations among socio-demographic factors, body mass index and 24-h movement are analysed by using multivariable logistic regressions. RESULTS The proportions of participants who meet none, moderate-to-vigorous physical activity, ST, sleep duration and all three recommendations are 8.15%, 33.54%, 54.23%, 75.55% and 17.55%, respectively. In general, multivariable logistic regression analysis indicates that older participants are less likely to meet the ST guidelines [odds ratio (OR): 0.931; 95% confidence interval (CI): 0.869-0.998] and more likely to meet the sleep guidelines (OR: 1.106; 95% CI: 1.016-1.204) than younger individuals. Participants with moderate ID are less likely to meet the sleep guidelines (OR: 0.345; 95% CI: 0.140-0.850) than those with profound ID. Individuals from families with middle-income (OR: 0.434; 95% CI: 0.226-0.836) and high-income (OR: 0.219; 95% CI: 0.080-0.605) levels were less likely to meet the physical activity guidelines than those from low-income families. Furthermore, participants from high-income families were less likely to meet ST (OR: 0.426; 95% CI: 0.187-0.969) and all three movement guidelines (OR: 0.083; 95% CI: 0.010-0.659) than those in the low household income groups. CONCLUSIONS Interventions that improve the health-related behaviours of children and adolescents with ID are needed, particularly those that target their increased engagement in physical activity.
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Affiliation(s)
- W H Xu
- College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua, Zhejiang Province, China
| | - L J Wang
- School of Physical Education, Shanghai University of Sport, Shanghai, China
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Peng HM, Zhou ZK, Zhao JN, Wang F, Liao WM, Zhang WM, Jiang Q, Yan SG, Cao L, Chen LB, Xiao J, Xu WH, He R, Xia YY, Xu YQ, Xu P, Zuo JL, Hu YH, Wang WC, Huang W, Wang JC, Tao SQ, Qian QR, Wang YZ, Zhang ZQ, Tian XB, Wang WW, Jin QH, Zhu QS, Yuan H, Shang XF, Shi ZJ, Zheng J, Xu JZ, Liu JG, Xu WD, Weng XS, Qiu GX. [Revision rate of periprosthetic joint infection post total hip or knee arthroplasty of 34 hospitals in China between 2015 and 2017: a multi-center survey]. Zhonghua Yi Xue Za Zhi 2023; 103:999-1005. [PMID: 36990716 DOI: 10.3760/cma.j.cn112137-20221108-02351] [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: 03/31/2023]
Abstract
Objective: To investigate the rate of periprosthetic joint infection (PJI) revision surgeries and clinical information of hip-/knee- PJI cases nationwide from 2015 to 2017 in China. Methods: An epidemiological investigation. A self-designed questionnaire and convenience sampling were used to survey 41 regional joint replacement centers nationwide from November 2018 to December 2019 in China. The PJI was diagnosed according to the Musculoskeletal Infection Association criteria. Data of PJI patients were obtained by searching the inpatient database of each hospital. Questionnaire entries were extracted from the clinical records by specialist. Then the differences in rate of PJI revision surgery between hip- and knee- PJI revision cases were calculated and compared. Results: Total of 36 hospitals (87.8%) nationwide reported data on 99 791 hip and knee arthroplasties performed from 2015 to 2017, with 946 revisions due to PJI (0.96%). The overall hip-PJI revision rate was 0.99% (481/48 574), and it was 0.97% (135/13 963), 0.97% (153/15 730) and 1.07% (193/17 881) in of 2015, 2016, 2017, respectively. The overall knee-PJI revision rate was 0.91% (465/51 271), and it was 0.90% (131/14 650), 0.88% (155/17 693) and 0.94% (179/18 982) in 2015, 2016, 2017, respectively. Heilongjiang (2.2%, 40/1 805), Fujian (2.2%, 45/2 017), Jiangsu (2.1%, 85/3 899), Gansu (2.1%, 29/1 377), Chongqing (1.8%, 64/3 523) reported relatively high revision rates. Conclusions: The overall PJI revision rate in 34 hospitals nationwide from 2015 to 2017 is 0.96%. The hip-PJI revision rate is slightly higher than that in the knee-PJI. There are differences in revision rates among hospitals in different regions.
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Affiliation(s)
- H M Peng
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Z K Zhou
- Department of Orthopaedics, West China Hospital of Sichuan University, Chengdu 610041, China
| | - J N Zhao
- Department of Orthopaedics, General Hospital of Eastern War Zone, People's Liberation Army, Nanjing 210002, China
| | - F Wang
- Department of Orthopedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang 050051, China
| | - W M Liao
- Department of Orthopedic Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510008, China
| | - W M Zhang
- Department of Joint Surgery, First Affiliated Hospital of Fujian Medical University, Fuzhou 350009, China
| | - Q Jiang
- Department of Orthopedic Surgery, Drum Tower Hospital of Nanjing University, Nanjing 210008, China
| | - S G Yan
- Department of Orthopaedic Surgery, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310058, China
| | - L Cao
- Department of Orthopaedic Surgery, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - L B Chen
- Department of Orthopaedic Surgery, Central South Hospital of Wuhan University, Wuhan 430071, China
| | - J Xiao
- Department of Orthopaedic Surgery, Wuhan Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430030, China
| | - W H Xu
- Department of Orthopedic Surgery, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430032, China
| | - R He
- Department of Orthopedic Surgery, the Southwest Hospital of Army Medical University, Chongqing 400038, China
| | - Y Y Xia
- Department of Orthopedic Surgery, Second Hospital of Lanzhou University, Lanzhou 730030, China
| | - Y Q Xu
- Department of Orthopedic Surgery, 920th Hospital of the People's Liberation Army, Kunming 650032, China
| | - P Xu
- Department of Orthopedic Surgery, Xi'an Red Cross Hospital, Xi'an Jiaotong University, Xi'an 710054, China
| | - J L Zuo
- Department of Orthopedic Surgery, China-Japan Friendship Hospital, Jilin University, Changchun 130031, China
| | - Y H Hu
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - W C Wang
- Department of Orthopedic Surgery, Second Hospital of Xiangya, Central South University, Changsha 410016, China
| | - W Huang
- Department of Orthopedic Surgery, First Hospital of Chongqing Medical University, Chongqing 400010, China
| | - J C Wang
- Department of Orthopedic Surgery, Second Hospital of Jilin University, Changchun 130021, China
| | - S Q Tao
- Department of Orthopedic Surgery, Second Hospital of Harbin Medical University, Harbin 150001, China
| | - Q R Qian
- Department of Orthopedic Surgery, Shanghai Changzheng Hospital, Shanghai 200030, China
| | - Y Z Wang
- Department of Orthopedic Surgery, Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Z Q Zhang
- Department of Orthopedic Surgery, Second Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - X B Tian
- Department of Orthopedic Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang 550000, China
| | - W W Wang
- Department of Orthopaedic Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin 150000, China
| | - Q H Jin
- Department of Orthopaedic Surgery, Affiliated Hospital of Ningxia Medical University, Yinchuan 750010, China
| | - Q S Zhu
- Xijing Hospital of Air Force Military Medical University, Xi'an 710032, China
| | - H Yuan
- Department of Orthopedic Surgery, Xinjiang Uygur Autonomous Region People's Hospital, Urumqi 830002, China
| | - X F Shang
- Department of Orthopedic Surgery, the First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital), Hefei 230001, China
| | - Z J Shi
- Department of Orthopedic Surgery, Southern Hospital, Southern Medical University, Guangzhou 510515, China
| | - J Zheng
- Department of Orthopedic Surgery, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - J Z Xu
- Department of Orthopedic Surgery, the First Hospital of Zhengzhou University, Zhengzhou 450002, China
| | - J G Liu
- Department of Orthopedic Surgery, the First Bethune Hospital of Jilin University, Changchun 130000, China
| | - W D Xu
- Department of Orthopaedic Surgery, Shanghai Changhai Hospital, Shanghai 200082, China
| | - X S Weng
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - G X Qiu
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
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Xu LS, Wang WZ, Deng JB, Xu WH. The residue of tetracycline antibiotics in soil and Brassica juncea var. gemmifera, and the diversity of soil bacterial community under different livestock manure treatments. Environ Geochem Health 2023; 45:7-17. [PMID: 35138517 DOI: 10.1007/s10653-022-01213-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 01/19/2022] [Indexed: 06/14/2023]
Abstract
Tetracycline antibiotics (TCs) are a broad-spectrum antibiotic, widely used in livestock and poultry breeding. Residue of tetracycline antibiotics in animal manure may cause changes in vegetable TCs content and soil microbial community. On the basis of the investigation and analysis of TCs pollution in the soil of main vegetable bases and the livestock manure of major large-scale farms in Chongqing, China, field experiment was conducted to study the residues of tetracycline antibiotics in Brassica juncea var. gemmifera and soil under different kinds and different dosages of livestock manures. Effects of tetracycline antibiotics on the structure and diversity of soil microbial community were also investigated by high-throughput sequencing. TCs content in soil was increased by applying livestock manure. The contents of tetracycline, oxytetracycline (OTC) and chlortetracycline (CTC) in the soil under pig manure treatment were 171.07-660.20 μg kg-1, 25.38-345.78 μg kg-1 and 170.77-707.47 μg kg-1, respectively. The contents of TC, OTC and CTC in the soil under the treatment of chicken manure were 166.62-353.61 μg kg-1, 122.25-251.23 μg kg-1 and 15.12-80.91 μg kg-1, respectively. TCs in edible parts of Brassica juncea var. gemmifera was increased after livestock manure treatment Proteobacteria, Acidobacteria, Actinobacteria, Chioroflexi and Bacteroidetes under livestock manure treatment were the dominant phyla, accounting for 85.2-92.4% of the total abundance of soil bacteria. The soil OTUs under the treatment of pig manure was higher than that under the treatment of chicken manure. Biogas residue (Livestock manure after fermentation treatment) can effectively reduce the environmental and ecological risks caused by antibiotic residues.
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Affiliation(s)
- L S Xu
- College of Resources and Environmental Sciences, Southwest University, Chongqing, 400715, People's Republic of China
| | - W Z Wang
- College of Resources and Environmental Sciences, Southwest University, Chongqing, 400715, People's Republic of China
| | - J B Deng
- College of Resources and Environmental Sciences, Southwest University, Chongqing, 400715, People's Republic of China
| | - W H Xu
- College of Resources and Environmental Sciences, Southwest University, Chongqing, 400715, People's Republic of China.
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Su SQ, Wu SQ, Huang YB, Xu WH, Gao KG, Okazawa A, Okajima H, Sakamoto A, Kanegawa S, Sato O. Photoinduced Persistent Polarization Change in a Spin Transition Crystal. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208771] [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: 11/12/2022]
Affiliation(s)
- Sheng-Qun Su
- Kyushu University: Kyushu Daigaku Institute for Materials Chemistry and Engineering 819-0395 Fukuoka JAPAN
| | - Shu-Qi Wu
- Kyushu University: Kyushu Daigaku Institute for Materials Chemistry and Engineering 819-0395 Fukuoka JAPAN
| | - Yu-Bo Huang
- Kyushu University: Kyushu Daigaku Institute for Materials Chemistry and Engineering 819-0395 Fukuoka JAPAN
| | - Wen-Huang Xu
- Kyushu University: Kyushu Daigaku Institute for Materials Chemistry and Engineering 819-0395 Fukuoka JAPAN
| | - Kai-Ge Gao
- Yangzhou University College of Physical Science and Technology 225009 Jiangsu CHINA
| | - Atsushi Okazawa
- Waseda University: Waseda Daigaku Department of Electrical Engineering and Bioscience 169-8555 Tokyo JAPAN
| | - Hajime Okajima
- Chuo University: Chuo Daigaku Faculty of Science and Engineering 112-8551 Tokyo JAPAN
| | - Akira Sakamoto
- Aoyama Gakuin University: Aoyama Gakuin Daigaku Graduate School of Science and Engineering 252-5258 sagamihara JAPAN
| | - Shinji Kanegawa
- Kyushu University: Kyushu Daigaku Institute for Materials Chemistry and Engineering and IRCCS 819-0395 Fukuoka JAPAN
| | - Osamu Sato
- Kyushu University Institute for Materials Chemistry and Engineering 744, Motooka, Nishi-ku 819-0395 Fukuoka JAPAN
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Sun GH, Shen MZ, Xu WH, Cao RH, Wang SS, Lu TT, Kong XX, Wang YB, Cao F. [Application of remote "Internet+" interactive mode in the management of patients with hypertension during normalized epidemic prevention and control of COVID-19]. Zhonghua Xin Xue Guan Bing Za Zhi 2021; 49:1089-1093. [PMID: 34775718 DOI: 10.3760/cma.j.cn112148-20210615-00509] [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 explore the effect of remote "Internet+" interactive management strategy on blood pressure control in patients with hypertension during normalized epidemic prevention and control of COVID-19. Methods: This is a randomized controlled study. A total of 394 patients with hypertension who were treated in Chinese People's Liberation Army General Hospital from October 2019 to December 2020 were randomly divided into experimental group (197 cases) and control group (197 cases). The experimental group adopted remote "Internet+" interaction mode to carry out remote blood pressure intervention, and the control group received traditional blood pressure control mode, and the intervention time was 6 months. Evaluation indicators included blood pressure level, blood pressure lowering speed, time to target blood pressure, blood pressure measurement times, communication times with doctors, medication compliance, blood pressure measurement compliance and disease awareness after 6 months of intervention. The evaluation indexes of the two groups were compared, and the bivariate Pearson correlation analysis was used to explore the relationship between the speed of blood pressure reduction and the times of blood pressure measurement and doctor communication in all patients. Results: A total of 394 patients with hypertension were included in this study, including 209 males, aged (67.6±2.8) years old. After 6 months of intervention, the systolic and diastolic blood pressure of the two groups were both lower than the baseline blood pressure before intervention (both P<0.05), the systolic blood pressure ((125.7±11.7) mmHg (1 mmHg=0.133 kPa) vs. (132.6±12.9) mmHg, P<0.001) and diastolic blood pressure ((72.4±10.7) mmHg vs. (79.8±11.6) mmHg, P<0.001) in the experimental group were lower than those in the control group. The blood pressure reduction speed of the experimental group was faster than that of the control group ((18.63±1.59) mmHg/d vs. (13.26±2.85) mmHg/d, P<0.001), and the time to reach the target blood pressure in the experimental group was shorter than that in the control group ((23.69±2.93) d vs. (47.12±5.81) d, P<0.001). Compared with the control group, the blood pressure measurement times ((0.98±0.13) times/d vs. (0.20±0.40) times/d, P<0.05) and the number of communications with doctors ((0.97±0.16) times/week vs. (0.12±0.32) times/week, P<0.05) were significantly higher in the experimental group. Correlation analysis showed that the speed of blood pressure reduction was positively correlated with the number of blood pressure measurements (r=0.419, P<0.01) and the number of communications with doctors (r=0.857, P<0.01). The proportion of standardized medication (93.91% (185/197) vs. 51.78% (102/197), P<0.001), timely measurement (97.46% (192/197) vs. 47.21% (93/197), P<0.001) and high-degree disease awareness (94.42% (186/197) vs. 49.24% (97/197), P<0.001) were significantly higher in the experimental group than those in the control group. Conclusions: The remote "Internet+" interactive management strategy can effectively improve patients' blood pressure control. The doctor-patient interaction can improve medication compliance and measurement compliance of patients, and help shorten the time to reach the target blood pressure.
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Affiliation(s)
- G H Sun
- Department of Cardiology, Second Medical Center of Chinese People's Liberation Army General Hospital, National Center for Clinical Medicine of Geriatric Diseases, Beijing 100853, China
| | - M Z Shen
- Hainan hospital of Chinese People's Liberation Army General Hospital, Sanya 572013, China
| | - W H Xu
- Chinese People's Liberation Army Medical College, Beijing 100853, China
| | - R H Cao
- Department of Cardiology, Second Medical Center of Chinese People's Liberation Army General Hospital, National Center for Clinical Medicine of Geriatric Diseases, Beijing 100853, China
| | - S S Wang
- Department of Cardiology, Second Medical Center of Chinese People's Liberation Army General Hospital, National Center for Clinical Medicine of Geriatric Diseases, Beijing 100853, China
| | - T T Lu
- Department of Cardiology, Second Medical Center of Chinese People's Liberation Army General Hospital, National Center for Clinical Medicine of Geriatric Diseases, Beijing 100853, China
| | - X X Kong
- Department of Cardiology, Second Medical Center of Chinese People's Liberation Army General Hospital, National Center for Clinical Medicine of Geriatric Diseases, Beijing 100853, China
| | - Y B Wang
- Department of Cardiology, Second Medical Center of Chinese People's Liberation Army General Hospital, National Center for Clinical Medicine of Geriatric Diseases, Beijing 100853, China
| | - F Cao
- Department of Cardiology, Second Medical Center of Chinese People's Liberation Army General Hospital, National Center for Clinical Medicine of Geriatric Diseases, Beijing 100853, China
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Zhang C, Li CX, Shao Q, Chen WB, Ma L, Xu WH, Li YX, Huang SC, Ma YB. Effects of Glycyrrhiza polysaccharide in diet on growth performance, serum antioxidant capacity, and biochemistry of broilers. Poult Sci 2020; 100:100927. [PMID: 33518321 PMCID: PMC7936193 DOI: 10.1016/j.psj.2020.12.025] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 12/06/2020] [Accepted: 12/08/2020] [Indexed: 02/07/2023] Open
Abstract
In the present study, we analyzed the effects of Glycyrrhiza polysaccharide (GCP) on growth performance, serum antioxidant capacity, and biochemistry of broilers. A total of 600, one-day-old AA broilers randomly divided into 5 treatment groups with 6 replicate pens of 20 birds per cage received dietary supplementation with GCP (0, 200, 500, 1,000, and 1,500 mg/kg) for 42 d. The supplementation of GCP linearly decreased (P < 0.05) feed conversion rate on day 22 to 42. Dietary supplementation with GCP reduced (P < 0.05) serum total cholesterol on day 21 and 42 and linearly improved (P < 0.05) albumin and high-density lipoprotein cholesterol. Dietary supplementation with 1,000 or 1,500 mg/kg GCP significantly increased (P < 0.05) serum total superoxide dismutase (T-SOD) activity on day 21 and 42 and reduced (P < 0.05) serum malondialdehyde content on 21 d. Dietary supplementation with 1,000 or 1,500 mg/kg GCP significantly improved (P < 0.05) interleukin-1β (IL-1β) and interferon-γ (IFN-γ) expressions in liver on day 21 and 42. At the end of the experiment, we randomly selected 20 broilers from 3 treatment groups (0, 1,000, and 1,500 mg/kg), respectively, to perform an lipopolysaccharide (LPS)-induced acute stress experiment. The 60 broilers were divided into 6 treatment groups with 10 birds per cage. The experiment was designed as a 3 × 2 factorial arrangement with GCP (0, 1,000, or 1,500 mg/kg) and LPS (injection of saline or 1 mg/kg body weight) levels as treatments. When the grouping was finished, the broilers were immediately intraperitoneally injected with LPS or normal saline. Six hours after challenged, serum antioxidant and liver immunity were analyzed. The results showed that dietary GCP prevented LPS-induced reductions in T-SOD activity and increases in malonaldehyde content (P < 0.05). Also, dietary GCP supplementation mitigated the LPS-induced increase in IL-1β and IFN-γ in the liver. Supplementation with 1,500 mg/kg GCP showed the most optimal effect in broilers. GCP has the potential to be used as feed additive in broilers.
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Affiliation(s)
- C Zhang
- Henan International Joint Laboratory of Animal Welfare and Health Breeding, Henan University of Science and Technology, Luoyang 471023, PR China.
| | - C X Li
- Henan International Joint Laboratory of Animal Welfare and Health Breeding, Henan University of Science and Technology, Luoyang 471023, PR China
| | - Q Shao
- Henan International Joint Laboratory of Animal Welfare and Health Breeding, Henan University of Science and Technology, Luoyang 471023, PR China
| | - W B Chen
- Henan International Joint Laboratory of Animal Welfare and Health Breeding, Henan University of Science and Technology, Luoyang 471023, PR China
| | - L Ma
- Henan International Joint Laboratory of Animal Welfare and Health Breeding, Henan University of Science and Technology, Luoyang 471023, PR China
| | - W H Xu
- Henan International Joint Laboratory of Animal Welfare and Health Breeding, Henan University of Science and Technology, Luoyang 471023, PR China
| | - Y X Li
- Henan International Joint Laboratory of Animal Welfare and Health Breeding, Henan University of Science and Technology, Luoyang 471023, PR China
| | - S C Huang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Y B Ma
- Henan International Joint Laboratory of Animal Welfare and Health Breeding, Henan University of Science and Technology, Luoyang 471023, PR China
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Liu CC, Shi CL, Shi JF, Mao AY, Huang HY, Dong P, Bai FZ, Chen YS, Wang DB, Liu GX, Liao XZ, Bai YN, Sun XJ, Ren JS, Yang L, Wei DH, Song BB, Lei HK, Liu YQ, Zhang YZ, Ren SY, Zhou JY, Wang JL, Gong JY, Yu LZ, Liu YY, Zhu L, Guo LW, Wang YQ, He YT, Lou PA, Cai B, Sun XH, Wu SL, Qi X, Zhang K, Li N, Xu WH, Qiu WQ, Dai M, Chen WQ. [Study on the health literacy and related factors of the cancer prevention consciousness among urban residents in China from 2015 to 2017]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:47-53. [PMID: 31914569 DOI: 10.3760/cma.j.issn.0253-9624.2020.01.011] [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 understand the health literacy and relevant factors of cancer prevention consciousness in Chinese urban residents from 2015 to 2017. Methods: A cross-sectional survey was conducted in 16 provinces covered by the Cancer Screening Program in Urban China from 2015 to 2017. A total of 32 257 local residents aged ≥18 years old who could understand the investigation procedure were included in the study by using the cluster sampling method and convenient sampling method. All local residents were categorized into four groups, which contained 15 524 community residents, 8 016 cancer risk assessment/screening population, 2 289 cancer patients and 6 428 occupational population, respectively. The self-designed questionnaire was used to collect the information of demographic characteristics and cancer prevention consciousness focusing on nine common risk factors, including smoking, alcohol, fiber food, food in hot temperature or pickled food, chewing betel nut, helicobacter pylori, moldy food, hepatitis B infection, estrogen, and exercise. The logistic regression model was adopted to identify the influencing factors. Results: The overall health literacy of the cancer prevention consciousness was 77.4% (24 980 participants), with 77.4% (12 018 participants), 79.9% (6 406 participants), 77.2% (1 766 participants) and 74.5% (4 709 participants) in each group (P<0.001). The correct response rates for nine risk factors ranged from 55.2% to 93.0%. The multivariate logistic regression analysis showed that compared with community residents, people with primary school level education or below, and the number of people living together in the family <3, the cancer risk assessment/screening intervention population, cancer patients, those with junior high school level educationor above and the number of people living in the family ≥3 had better health literacy of the cancer prevention consciousness (all P values <0.05). Compared with females, 39 years old and below, government-affiliated institutions or civil servants, from the eastern region, males, older than 40 years, company or enterprise employees, and from the middle or western region had worse health literacy of the cancer prevention consciousness (all P values <0.05). Conclusion: The health literacy of the cancer prevention consciousness in Chinese urban residents should be improved. The cancer screening intervention, gender, age, education, occupation, the number of people co-living in the family, and residential region were associated with the health literacy of the cancer prevention consciousness.
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Affiliation(s)
- C C Liu
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - C L Shi
- Department of Disease Control and Prevention, Xuzhou Center for Disease Control and Prevention, Xuzhou 221006, China
| | - J F Shi
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - A Y Mao
- Department of Public Health Strategy Research, Institute of Medical Information, Chinese Academy of Medical Sciences, Beijing 100020, China
| | - H Y Huang
- Clinical Trials Center, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100020, China
| | - P Dong
- Department of Public Health Strategy Research, Institute of Medical Information, Chinese Academy of Medical Sciences, Beijing 100020, China
| | - F Z Bai
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y S Chen
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - D B Wang
- Health Management College, Anhui Medical University, Hefei 230032, China
| | - G X Liu
- School of Public Health, Harbin Medical University, Harbin 150081, China
| | - X Z Liao
- The Department of Cancer Prevention and Control, Hunan Provincial Cancer Hospital, Changsha 410006, China
| | - Y N Bai
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - X J Sun
- Scholl of Health Care Management, Shandong University, Jinan 250012, China
| | - J S Ren
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L Yang
- School of Public Health, Guangxi Medical University, Nanning 530021, China
| | - D H Wei
- Department of Medical Examination for Cancer Prevention, Anhui Provincial Cancer Hospital, Hefei 230032, China
| | - B B Song
- The department of Cancer Prevention and Control, Affiliated Cancer Hospital of Harbin Medical University, Harbin 150081, China
| | - H K Lei
- Department of Cancer Research and Control, Chongqing University Cancer Hospital/Chongqing Cancer Institute/Chongqing Cancer Hospital, Chongqing 400030, China
| | - Y Q Liu
- Department of Cancer Epidemiology, Gansu Provincial Cancer Hospital, Lanzhou 730050, China
| | - Y Z Zhang
- Department of Epidemiology, Shanxi Provincial Center Hospital, Taiyuan 030013, China
| | - S Y Ren
- Institute for Chronic and Non-communicable Disease Prevention and Control, Yunnan Center for Disease Prevention and Control, Kunming 650118, China
| | - J Y Zhou
- Department of Chronic Disease Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - J L Wang
- The Department of Cancer Prevention and Control, Shandong Tumor Hospital, Jinan 250117, China
| | - J Y Gong
- The Department of Cancer Prevention and Control, Shandong Tumor Hospital, Jinan 250117, China
| | - L Z Yu
- Institute for Chronic and Non-communicable Disease Prevention and Control, Liaoning Provincial Center for Disease Control and Prevention, Shenyang 110005, China
| | - Y Y Liu
- The Department of Cancer Prevention and Control, Liaoning Cancer Hospital/Institute, Shenyang 110042, China
| | - L Zhu
- Cancer Research Institute, Affiliated Cancer Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - L W Guo
- Office for Cancer Control and Research, Henan Cancer Hospital/The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - Y Q Wang
- Department of Cancer Prevention, Cancer hospital of University of Chinese Academy of Sciences/Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - Y T He
- The Department of Cancer Prevention and Control, Cancer Institute, The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - P A Lou
- Department of Control and Prevention of Chronic Non-communicable Diseases, Xuzhou Center for Disease Control and Prevention, Xuzhou221006, China
| | - B Cai
- Department of Health Education and Chronic Disease Control, Nantong Center for Disease Control and Prevention, Nantong 226000, China
| | - X H Sun
- Endocrine Department, Ningbo NO.2 Hospital, Ningbo 315010, China
| | - S L Wu
- Department of Cardiovascular Diseases, Kailuan General Hospital, Tangshan 063000, China
| | - X Qi
- Office of Cancer Screening, Tangshan People's Hospital, Tangshan 063001, China
| | - K Zhang
- Department of Medical Examination for Cancer Prevention, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - N Li
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - W H Xu
- Key Lab of Health Technology Assessment of Ministry of Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - W Q Qiu
- Department of Public Health Strategy Research, Institute of Medical Information, Chinese Academy of Medical Sciences, Beijing 100020, China
| | - M Dai
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - W Q Chen
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Li F, Feng YK, Liang SY, Xu WH, Zhou JZ, Cui DW. [Cervical auricle: report of three cases]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 54:693-694. [PMID: 31550763 DOI: 10.3760/cma.j.issn.1673-0860.2019.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- F Li
- Department of Otorhinolaryngology, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524000, China
| | - Y K Feng
- Department of Otorhinolaryngology, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524000, China
| | - S Y Liang
- Department of Otorhinolaryngology, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524000, China
| | - W H Xu
- Department of Otorhinolaryngology, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524000, China
| | - J Z Zhou
- Department of Pathology, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524000, China
| | - D W Cui
- Department of Otorhinolaryngology, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524000, China
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Li J, Fang Y, Xiao QY, Gao Y, Xu WH. [Mediation effect of DNA methylation in associations between birth weight and adulthood obesity in women in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2019; 40:590-595. [PMID: 31177744 DOI: 10.3760/cma.j.issn.0254-6450.2019.05.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the possible mediation effect of DNA methylation in the associations between birth weight and adulthood obesity in women in China. Methods: A cross-sectional survey was conducted in 1 602 women with genetic relationship in urban area of Shanghai during March-December 2016. Information about their birth weight, birth length, current lifestyle and disease history were collected and body measurement was conducted at the interview. DNA methylation at specific sites of GNASAS, IGF2, IGF2-R, IL10 and LEP were measured using bisulphite pyrosequencing. Generalized estimating equations models with restricted cubic spline functions were used to estimate the associations of birth weight with BMI, waist circumference (WC), waist-to-hip ratio (WHR), and waist-to-hip ratio (WHtR) in adulthood, and their associations with DNA methylation were evaluated using multilevel linear models. Multilevel structural equation models were used to evaluate the mediation effect of DNA methylation. Results: A significant non-linear association was observed between birth weight and WC as well as WHtR (P<0.05). Lower birth weight was associated with higher level of methylation at IGF2-DMR (CpG1, 2), IGF2-R (CpG8, 10, 13, 16 and 17), with β coefficients and 95%CI being -4.35 (-7.30- -1.39), -4.50 (-7.59- -1.41), -2.33 (-4.60- -0.05), -1.78 (-3.88- -0.33), -2.58 (-4.82- -0.34), -2.03 (-4.00- -0.06) and -1.87 (-3.73- -0.01), respectively, but related with a lower level of methylation at LEP CpG16 (β=4.19, 95%CI: 0.37- 8.00). Lower level of methylation at IGF2-DMR (CpG7), IGF2-R (CpG3, 5, 8, 9, 10, 14, 17, 19) and LEP (CpG3, 8, 10) was associated with larger WC, with β coefficients ranging from -0.016 to -0.040 (all P<0.05). Methylation at IGF2-R CpG8 was observed to mediate the association of birth weight and WC, and could explain 3.3% of the association. Conclusion: Our results suggested that DNA methylation might mediate the effect of nutrition in uteri on adulthood central obesity in women in China.
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Affiliation(s)
- J Li
- School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai 200032, China
| | - Y Fang
- School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai 200032, China
| | - Q Y Xiao
- School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai 200032, China
| | - Y Gao
- Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - W H Xu
- School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai 200032, China
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Zou DY, Coudron TA, Zhang LS, Gu XS, Xu WH, Liu XL, Wu HH. Performance of Arma chinensis reared on an artificial diet formulated using transcriptomic methods. Bull Entomol Res 2019; 109:24-33. [PMID: 29463319 DOI: 10.1017/s0007485318000111] [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] [Indexed: 06/08/2023]
Abstract
An artificial diet formulated for continuous rearing of the predator Arma chinensis was inferior to natural prey when evaluated using life history parameters. A transcriptome analysis identified differentially expressed genes in diet-fed and prey-fed A. chinensis that were suggestive of molecular mechanisms underlying the nutritive impact of the artificial diet. Changes in the diet formulation were made based on the transcriptome analysis and tested using life history parameters. The quantity of pig liver, chicken egg, tuna fish, biotin, nicotinamide, vitamin B6, thiamine, riboflavin, vitamin C, L-glutamine, and sucrose was reduced, and wheat germ oil, calcium pantothenate and folic acid were increased. Ecuadorian shrimp was added as a partial substitute for tuna fish. Several parameters improved over six generations, including increased egg viability, and decreased egg and adult cannibalism. Additionally, several parameters declined, including longer developmental times for 2nd-5th instars, and decreased nymphal weights. The improvements in life history parameters support the use of transcriptome analyses to help direct formulation improvements. However, the decline in some parameters suggests that additional information, e.g., proteomic data, may be useful as well to maximize diet formulations.
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Affiliation(s)
- D Y Zou
- Insect Pest Control Laboratory, Tianjin Institute of Plant Protection, Tianjin Academy of Agricultural Sciences,Tianjin 300384,China
| | - T A Coudron
- Biological Control of Insects Research Laboratory, USDA-Agricultural Research Service,Columbia, MO 65203,USA
| | - L S Zhang
- USDA-ARS Sino-American Biological Control Laboratory, Institute of Plant Protection, Chinese Academy of Agricultural Sciences,Beijing 100193,China
| | - X S Gu
- Insect Pest Control Laboratory, Tianjin Institute of Plant Protection, Tianjin Academy of Agricultural Sciences,Tianjin 300384,China
| | - W H Xu
- Insect Pest Control Laboratory, Tianjin Institute of Plant Protection, Tianjin Academy of Agricultural Sciences,Tianjin 300384,China
| | - X L Liu
- Insect Pest Control Laboratory, Tianjin Institute of Plant Protection, Tianjin Academy of Agricultural Sciences,Tianjin 300384,China
| | - H H Wu
- Agricultural Analysis and Test Center, Tianjin Agricultural University,Tianjin 300384,China
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Abstract
Objective: To investigate the influence of blue light from visual display terminals (VDTs) on human ocular surface. Methods: Prospective intervention test Thirty volunteers were recruited to watch videos on the same VDT in a dark environment, about 40 cm from the screen. Volunteers were supposed to watch videos in the night shift mode that reduces the amount of blue light for 1 hour. At the same time of the second day, they watched the same videos on the VDT in the normal mode for 1 hour. Tear film break-up time (BUT), corneal fluorescein staining scores, lipid layer thickness (LLT), times of blinking in 19.1 seconds and the ratio of partial blinking in 19.1 seconds were measured before and after each watching. Meanwhile, volunteers were asked to complete a questionnaire about their subjective experience after watching. Results: BUT, corneal fluorescein staining scores and LLT showed no significant decreases in the volunteers after they watched videos on the VDT in the night shift mode [BUT before watching: (8.08±3.15)s, BUT after watching in the night shift mode: (5.31±2.49)s, t=-0.52, P>0.05], but there were significant decreases after they watched videos in the normal mode [BUT after watching in the normal mode: (3.35±1.95) s, t=2.40, P<0.05]. At the same time, there was a significant difference between night shift mode and normal mode[BUT after watching in the night shift mode (5.31±2.49)s, BUT after watching in the normal mode: (3.35±1.95)s, t=3.67, P<0.05). Times of blinking and the ratio of partial blinking in 19.1 seconds were increased modestly after watching in 2 different modes, but there was no significant difference(times of blinking after watching in the night shift mode were 5.55±3.27, times of blinking after watching in the normal mode were 5.93±3.59, t=-0.92, P>0.05). The questionnaire results showed that 70.0%(21) of the volunteers reported mild discomfort including eye dryness, itching, pain, foreign body sensation, redness and asthenopia, 46.7%(14) reported no difference between the 2 modes, 36.7%(11) preferred the night shift mode, 16.6%(5) felt better with the normal mode, and 80.0%(24) would like to try the night shift mode in their daily life. Conclusions: Use of VDTs for a short period of time can lower the stability of tear film. The night shift mode may cause less damage to the ocular surface than the normal mode. High-energy blue light from VDTs can be a risk factor in the ocular surface damage, but the damage is reversible. (Chin J Ophthalmol, 2018, 54: 426-431).
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Affiliation(s)
- W H Xu
- Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430022, China
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Wu F, Mo M, Qin XX, Fang H, Zhao GM, Liu GY, Chen YY, Cao ZG, Yan YJ, Lyu LL, Xu WH, Shao ZM. [Cost-effectiveness of multiple screening modalities on breast cancer in Chinese women from Shanghai]. Zhonghua Liu Xing Bing Xue Za Zhi 2017; 38:1665-1671. [PMID: 29294584 DOI: 10.3760/cma.j.issn.0254-6450.2017.12.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To determine the most cost-effective modality for breast cancer screening in women living in Shanghai. Methods: A Markov model for breast cancer was redeveloped based on true effect which was derived from a project for detection of women at high risk of breast cancer and an organized breast cancer screening program conducted simultaneously in Minhang district, Shanghai, during 2008 to 2012. Parameters of the model were derived from literatures. General principles related to cost-effectiveness analysis were used to compare the costs and effects of 12 different screening modalities in a simulated cohort involving 100 000 women aged 45 years. Incremental cost-effectiveness ratio (ICER) was used to determine the most cost-effective modality. Sensitivity analysis was conducted to evaluate how these factors affected the estimated cost-effectiveness. Results: The modality of biennial CBE followed by ultrasonic and mammography among those with positive CBE was observed as the most cost-effective one. The costs appeared as 182 526 Yuan RMB per life year gained and 144 386 Yuan RMB per quality adjusted life-year (QALY) saved, which were within the threshold of 2-3 times of local per capita Gross Domestic Product. Results from sensitivity analysis showed that, due to higher incidence rate of breast cancer in Shanghai, the cost per QALY would be 64 836 Yuan RMB lower in Shanghai than the average level in China. Conclusion: Our research findings showed that the biennial CBE program followed by ultrasonic and mammography for those with positive CBE results might serve as the optimal breast cancer screening modality for Chinese women living in Shanghai, and thus be widely promoted in this population elsewhere.
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Affiliation(s)
- F Wu
- Department of Epidemiology, School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai 200032, China; Department of Breast Surgery, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - M Mo
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - X X Qin
- Department of Hospital Management, School of Public Health, Fudan University, Key Laboratory of Health Technology Assessment, Ministry of Education, Shanghai 200032, China
| | - H Fang
- Center for Disease Control and Prevention of Minhang District of Shanghai, Shanghai 201103, China
| | - G M Zhao
- Department of Epidemiology, School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai 200032, China
| | - G Y Liu
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Y Y Chen
- Department of Hospital Management, School of Public Health, Fudan University, Key Laboratory of Health Technology Assessment, Ministry of Education, Shanghai 200032, China
| | - Z G Cao
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Y J Yan
- Center for Disease Control and Prevention of Minhang District of Shanghai, Shanghai 201103, China
| | - L L Lyu
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - W H Xu
- Department of Epidemiology, School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai 200032, China
| | - Z M Shao
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
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Xu WH. [Test performance of transcranial Doppler: from destruction to construction]. Zhonghua Yi Xue Za Zhi 2017; 97:3041-3042. [PMID: 29081146 DOI: 10.3760/cma.j.issn.0376-2491.2017.39.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
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Wang RY, Xu WH, Kong XC, Yang L, Yang SH. Measurement of acetabular inclination and anteversion via CT generated 3D pelvic model. BMC Musculoskelet Disord 2017; 18:373. [PMID: 28851328 PMCID: PMC5576350 DOI: 10.1186/s12891-017-1714-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 08/10/2017] [Indexed: 11/19/2022] Open
Abstract
Background Inclination and anteversion were the main factors that determined the reliability of the acetabulum. Inclination and anteversion measurements included anatomical, operational and radiographic methods. The aim of our present study was to exhibit divergence of inclination and anteversion via the three measurements. Methods Inclination and anteversion were defined according to the definitions put forward by Murray. Three-dimensional models of pelvis of CT data were brought forth. Acetabular axis was determined by the rim of acetabula. Reference planes were established by bone landmarks including anterior superior iliac spine, pubic tubercles and sacral crests. Inclinations and anteversions were calculated according to the definitions. Results Forty-nine cases were involved in the research. Data of inclination form anatomical, operational and radiographic showed 37.48 ± 11.07, 45.12 ± 14.76 and 48.76 ± 14.36, and anteversion were 18.12 ± 7.59, 24.97 ± 9.68, 14.30 ± 5.64. A substantial deviation was noted in the inclinations (P < 0.01) and anteversions (P < 0.01). Conclusion Our findings suggested that the inclinations and anteversions of the three measurements varied, which might in turn interfere the decision of orthopedists.
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Affiliation(s)
- R Y Wang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
| | - W H Xu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
| | - X C Kong
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
| | - L Yang
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
| | - S H Yang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China.
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Xu WH, Guo WJ, Yang TS. [A case of Takayasu arteritis with acute myocardial infarction as the initial presentation]. Zhonghua Xin Xue Guan Bing Za Zhi 2016; 44:451-452. [PMID: 27220584 DOI: 10.3760/cma.j.issn.0253-3758.2016.05.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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Chen XP, Xu WH, Xu DF, Fu SM, Ma ZC. G12V Kras mutations in cervical cancer under virtual microscope of molecular dynamics simulations. EUR J GYNAECOL ONCOL 2016; 37:69-74. [PMID: 27048113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Kras mutations and cancers are common and their role in the progression of cancer is well known and elucidated. The present work is searching for the most deleterious mutation of the four found at codon 12 and 13 of Kras in cervical cancers using prediction servers; different servers were used to look into different factors that govern the protein function. The in silico results predicted G12V to be the most devastating; this particular mutation was then subjected to molecular dynamics simulation (MDS) for further analysis. The authors' approach of MDSs helped them to place the native and mutant structure under virtual microscope and observe their dynamics over time. The results generated are enlightening the effect of G12V variation on the dynamics of Kras. The structural variation between the native and mutant Kras over 50 nanoseconds (ns) run varied at every parameter checked and the results are in excellent agreement with the available experimental data.
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Zou DY, Coudron TA, Wu HH, Gu XS, Xu WH, Zhang LS, Chen HY. Performance and Cost Comparisons for Continuous Rearing of Arma chinensis (Hemiptera: Pentatomidae: Asopinae) on a Zoophytogenous Artificial Diet and a Secondary Prey. J Econ Entomol 2015; 108:454-461. [PMID: 26470156 DOI: 10.1093/jee/tov024] [Citation(s) in RCA: 5] [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: 10/03/2014] [Accepted: 01/11/2015] [Indexed: 06/05/2023]
Abstract
The impact of a zoophytogenous, insect-free artificial diet and a secondary prey, pupae of Chinese oak silk moth Antheraea pernyi (Guérin-Méneville) (Lepidoptera: Saturniidae), on the developmental rate, life history parameters, and fertility was examined for F6, F9, and F12 consecutive generations for domesticated Arma chinensis (Fallou) (Heteroptera: Pentatomidae). This study showed that when fed an insect-free artificial diet during both the nymphal and adult stages, developmental times were prolonged, and fecundity, egg viability, net reproductive rates (R0), and intrinsic rates of increase (rm) declined. As a result, the cost to rear A. chinensis on the artificial diet approached 1.7 times the cost of rearing A. chinensis on pupae of A. pernyi. Future diet improvements should attempt to reduce developmental time, increase fecundity, and egg viability and use less costly nutrient sources.
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Affiliation(s)
- D Y Zou
- Insect Pest Control Laboratory, Tianjin Institute of Plant Protection, Tianjin 300381, China. Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100081, China. Sino-American Biological Control Laboratory, USDA-Agricultural Research Service, Beijing 100081, China.
| | - T A Coudron
- Biological Control of Insects Research Laboratory, USDA-Agricultural Research Service, Columbia, MO 65203
| | - H H Wu
- Agricultural Analysis and Test Center, Tianjin Agricultural University, Tianjin 300384, China
| | - X S Gu
- Insect Pest Control Laboratory, Tianjin Institute of Plant Protection, Tianjin 300381, China
| | - W H Xu
- Insect Pest Control Laboratory, Tianjin Institute of Plant Protection, Tianjin 300381, China
| | - L S Zhang
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100081, China. Sino-American Biological Control Laboratory, USDA-Agricultural Research Service, Beijing 100081, China
| | - H Y Chen
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100081, China. Sino-American Biological Control Laboratory, USDA-Agricultural Research Service, Beijing 100081, China
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Xu WH, Xing YQ, Yan ZR, Jiang JD, Gao S. Cardiac right-to-left shunt subtypes in Chinese patients with cryptogenic strokes: a multicenter case-control study. Eur J Neurol 2014; 21:525-8. [PMID: 24444328 DOI: 10.1111/ene.12351] [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: 10/06/2013] [Accepted: 12/11/2013] [Indexed: 12/30/2022]
Abstract
BACKGROUND AND PURPOSE Data on the possible association between cardiac right-to-left shunt (RLS) and cryptogenic stroke are lacking in Asians. RLS and its subtypes in Chinese cryptogenic stroke patients were investigated. METHODS Patients (n = 153, mean age 42 ± 10 years, 81 male) with cryptogenic stroke from four medical centers in China and 135 healthy volunteers (mean age 34 ± 8 years, 54 male) were recruited. Contrast transcranial Doppler was used to assess the prevalence of RLS. A three-level RLS categorization was applied as follows: none, 0 microbubbles (MBs); small, 1-25 MBs; and large, >25 MBs. RLS was considered latent if it occurred only after the Valsalva maneuver or permanent when it occurred also during normal respiration. RESULTS Overall, RLS (P = 0.02), large RLS (P < 0.001) and permanent RLS (P = 0.02) were more frequently detected in patients with cryptogenic stroke than in healthy volunteers. The prevalences of small RLS and latent RLS in the two groups were similar (22% vs. 21% and 11% vs. 10%, respectively). The proportion of large RLSs amongst the subjects with RLS was much higher in the patient group than in healthy volunteers (45% vs. 18%, P < 0.001), whilst the proportion of permanent RLS was similar (72% vs. 64%, P = 0.11). Most large RLSs in the patient group (22/27, 81%) were permanent RLSs. CONCLUSIONS Cardiac RLS is associated with cryptogenic stroke in Chinese. However, the higher prevalence of overall RLS in the patient group was mainly due to the increased proportion of large RLSs. The results only support large RLSs as a pathological condition.
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Affiliation(s)
- W H Xu
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
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22
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Abstract
Regiospecific core-satellite assembly of gold nanoplates (AuNPs)/gold nanorods (AuNRs) can be fabricated via ss-DNA hybridization. SERS behavior of the DNA driven assembly has been explored from inducing transition between para-ATP and DMAB through plasmon-assisted catalysis, suggesting that the core-satellite assembly can be utilized as highly active optical substrate. Moreover, a Raman label tagged thymine-rich DNA functionalized AuNRs/AuNPs assembly can be employed as in situ SERS sensing of mercury ions at the ultrasensitive ppt level, which indicates that the core-satellite assembly is appropriate as a versatile SERS substrate for the application of optical chemical or biosensing.
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Affiliation(s)
- D D Li
- Research Center for Biomimetic Functional Materials and Sensing Devices, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
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Villegas R, Xiang YB, Elasy T, Xu WH, Cai H, Cai Q, Linton MF, Fazio S, Zheng W, Shu XO. Purine-rich foods, protein intake, and the prevalence of hyperuricemia: the Shanghai Men's Health Study. Nutr Metab Cardiovasc Dis 2012; 22:409-416. [PMID: 21277179 PMCID: PMC3150417 DOI: 10.1016/j.numecd.2010.07.012] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2009] [Revised: 07/14/2010] [Accepted: 07/19/2010] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND AIMS Diet may play an important role in the development of hyperuricemia and gout. However, the association between dietary factors and hyperuricemia remains unclear, and few studies have investigated direct links between food intake and hyperuricemia. The aim of this study was to investigate associations between high purine-content foods and protein intake with the prevalence of hyperuricemia by using data from a cross-sectional study of 3978 men aged 40-74 yrs living in Shanghai, China. METHODS AND RESULTS Hyperuricemia was defined as blood uric acid level >7.0 mg/dl. One quarter of this population had hyperuricemia. Dietary information was collected by using a food frequency questionnaire. We collected information on anthropometric measurements and lifestyle factors and other potential confounding factors and disease history via interviews. Total protein consumption was not associated with hyperuricemia. We found a positive association between protein from animal sources and prevalence of hyperuricemia and an inverse association between protein from plant sources and hyperuricemia. However, these associations failed to reach significance in mutually adjusted analysis. Seafood intake was associated with higher prevalence of hyperuricemia. The ORs for quintiles of seafood intake (including fish and shellfish) were 1.00, 1.49, 1.35, 1.34, and 1.56 (p for trend: 0.01). An inverse association approaching significance between soy food consumption and hyperuricemia was observed (ORs: 1.00, 0.90, 0.70, 0.89, and 0.77 for quintiles of intake; p for trend: 0.07). No associations between consumption of purine-rich vegetables or meat and prevalence of hyperuricemia were observed. CONCLUSIONS Our data suggest a direct association between seafood consumption and hyperuricemia and an inverse association between consumption of soy food and hyperuricemia among middle-aged, Chinese men.
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Affiliation(s)
- R Villegas
- Vanderbilt University Medical Center, Nashville, TN 37206, USA.
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Villegas R, Xiang YB, Cai H, Elasy T, Cai Q, Zhang X, Fazio S, Linton MF, Li H, Xu WH, Yang G, Zheng W, Shu XO. Lifestyle determinants of C-reactive protein in middle-aged, urban Chinese men. Nutr Metab Cardiovasc Dis 2012; 22:223-230. [PMID: 21111583 PMCID: PMC3143269 DOI: 10.1016/j.numecd.2010.07.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2010] [Revised: 07/14/2010] [Accepted: 07/19/2010] [Indexed: 11/24/2022]
Abstract
BACKGROUND AND AIM Increased levels of C-reactive protein (CRP), common in aging populations, are associated with higher risk for chronic diseases, including diabetes and coronary heart disease. The aim of this study was to investigate associations between lifestyle factors and high CRP among middle-aged men living in Shanghai, China. METHODS AND RESULTS In this cross-sectional study, 3978 urban Chinese men aged 40-74 years who were free of type-2 diabetes at baseline provided fasting blood samples, anthropometric measurements and information on lifestyle factors and disease history. Dietary patterns were assessed by factor analysis. Participants were categorised into two groups according to CRP level: normal (≤ 3 mg/L) and high (> 3 mg/L). Associations between CRP categories and lifestyle factors were investigated by using logistic regression. Obesity, weight gain, cigarette smoking and alcohol intake were positively associated with high CRP levels, while physical activity and a dietary pattern with high consumption of fruit were inversely related to high CRP levels. A positive trend of marginal significance between quintiles of a dietary pattern with high consumption of meat and high CRP levels was also observed. No association between tea intake and CRP level was observed. CONCLUSIONS Components of an adverse lifestyle were associated with high CRP levels. Obesity, smoking and alcohol intake were associated with high CRP, a biomarker of low-grade inflammation in middle-aged men, while a dietary pattern rich in fruit and high physical activity were inversely associated with the prevalence of high CRP.
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Affiliation(s)
- R Villegas
- Vanderbilt University Medical Center, Nashville, TN 37206, USA.
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Lu Y, Xu WH, Xie YX, Zhang X, Pu JJ, Qi YX, Li HP. Isolation and characterization of nucleotide-binding site and C-terminal leucine-rich repeat-resistance gene candidates in bananas. Genet Mol Res 2011; 10:3098-108. [PMID: 22194165 DOI: 10.4238/2011.december.15.1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Commercial banana varieties are highly susceptible to fungal pathogens, as well as bacterial pathogens, nematodes, viruses, and insect pests. The largest known family of plant resistance genes encodes proteins with nucleotide-binding site (NBS) and C-terminal leucine-rich repeat (LRR) domains. Conserved motifs in such genes in diverse plant species offer a means for the isolation of candidate genes in banana that may be involved in plant defense. Six degenerate PCR primers were designed to target NBS and additional domains were tested on commercial banana species Musa acuminata subsp malaccensis and the Musa AAB Group propagated in vitro and plants maintained in a greenhouse. Total DNA was isolated by a modified CTAB extraction technique. Four resistance gene analogs were amplified and deposited in GenBank and assigned numbers HQ199833-HQ199836. The predicted amino acid sequences compared to the amino acid sequences of known resistance genes (MRGL1, MRGL2, MRGL3, and MRGL4) revealed significant sequence similarity. The presence of consensus domains, namely kinase-1a, kinase-2 and hydrophobic domain, provided evidence that the cloned sequences belong to the typical non-Toll/interleukin-1 receptor-like domain NBS-LRR gene family.
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Affiliation(s)
- Y Lu
- College of Natural Resources and Environment, South China Agriculture University, Wushan, China
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Tang ZH, Wu MJ, Xu WH. Implants placed simultaneously with maxillary sinus floor augmentations in the presence of antral pseudocysts: a case report. Int J Oral Maxillofac Surg 2011; 40:998-1001. [PMID: 21596525 DOI: 10.1016/j.ijom.2011.02.038] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2010] [Revised: 01/28/2011] [Accepted: 02/22/2011] [Indexed: 11/17/2022]
Abstract
An antral pseudocyst on the maxillary sinus has previously been a contraindication for sinus augmentation. The authors report the case of a patient with an antral pseudocyst (16.7 mm × 27.6 mm) in his left sinus, who was referred for dental implant treatment. The surgical plan was to perform the sinus augmentation after removing the cyst whilest simultaneously placing implants. During the operation the cyst could not be found in the left sinus. The sinus augmentation was carried out successfully without sinus membrane perforation and the implants were placed according to plan. Three mouths later, the cyst was still present and good osseointegration of the implants was achieved. After the implants had been in place for a year, a CT scan showed that the cyst had decreased in size. The authors conclude that it is may not be necessary to remove a sinus cyst before sinus augmentation or during the sinus augmentation operation if the patient does not have any symptoms and the cyst is not large. In cases with large lesions or an unclear diagnosis, further evaluation is needed before surgical intervention.
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Affiliation(s)
- Z H Tang
- Second Dental Center, Peking University School and Hospital of Stomatology, Beijing 100101, PR China
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Chi LJ, Lu HT, Li GL, Wang XM, Su Y, Xu WH, Shen BZ. Involvement of T helper type 17 and regulatory T cell activity in tumour immunology of bladder carcinoma. Clin Exp Immunol 2011; 161:480-9. [PMID: 20646003 DOI: 10.1111/j.1365-2249.2010.04215.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
T helper type 17 (Th17) and regulatory T cells (T(reg) ) play an important role in the pathogenesis of inflammation and autoimmune disorders. Recent studies have suggested that they also had an impact on tumour immunology. However, the relationship between Th17 and T(reg) cells in the pathogenesis of bladder carcinoma is still unclear. Flow cytometry was used to analyse the numbers, phenotype and cytokine production of Th17 cells in peripheral blood and tumour tissue from bladder carcinoma patients, in parallel with analysis of T(reg) cells. The suppressor capacity of T(reg) and the potential effects of interleukin (IL)-2 on the differentiation of Th17 and T(reg) cells in vitro were studied in a T cell stimulation and suppression assays. The results were as follows: Th17 cells were enriched in the tumours of patients with bladder carcinoma compared with the peripheral blood of patients and controls; patients with bladder carcinoma had a higher proportion of T(reg) cells in peripheral blood compared with healthy controls and nearly all patients examined showed a relative enrichment of tumour-infiltrating T(reg) with respect to peripheral blood; there appeared to be an inverse relationship between tumour-infiltrating Th17 and T(reg) cells; IL-2 could convert tumour-infiltrating T(reg) cells cultured in the presence of the autologous irradiated CD3(-) fraction into Th17 cells, down-regulate forkhead box P2 expression and suppressive capacity of T(reg) cells. This study is the first to define the frequency and characteristics of Th17 cells in bladder carcinoma. We suggest that the balance between Th17 and T(reg) cells may be involved in the development or progression of bladder carcinoma.
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Affiliation(s)
- L J Chi
- Department of Neurology, Second Affiliated Hospital of Harbin Medical University, Harbin, China
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Yang LP, Wang YJ, Xu WH, Qin MP, Xiang T. A quantum transfer matrix method for one-dimensional disordered electronic systems. J Phys Condens Matter 2009; 21:145407. [PMID: 21825338 DOI: 10.1088/0953-8984/21/14/145407] [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] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We develop a novel quantum transfer matrix method to study thermodynamic properties of one-dimensional (1D) disordered electronic systems. It is shown that the partition function can be expressed as a product of 2 × 2 local transfer matrices. We demonstrate this method by applying it to the 1D disordered Anderson model. Thermodynamic quantities of this model are calculated and discussed.
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Affiliation(s)
- L P Yang
- Institute of Theoretical Physics, Chinese Academy of Sciences, PO Box 2735, Beijing 100080, People's Republic of China
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Xu WH, Huber R, Riepe MW. Gender- and region-specific expression of insulin receptor protein in mouse brain: effect of mild inhibition of oxidative phosphorylation. J Neural Transm (Vienna) 2006; 114:373-7. [PMID: 17086487 DOI: 10.1007/s00702-006-0588-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2006] [Accepted: 09/23/2006] [Indexed: 10/23/2022]
Abstract
Insulin receptors (IR) and inhibition of oxidative metabolism have been suggested to partake in the pathophysiological cascade of neurodegenerative disorders. The goal of this study was to investigate gender- and region-specificity of insulin receptor protein expression in mouse brain subsequent to a mild hypoxic episode. Tissue was prepared from untreated male and female mice and animals pretreated in vivo with 20 mg/kg body weight i.p. 3-nitroproprionic acid (3-np; an inhibitor of succinic dehydrogenase) 1 hr prior to tissue preparation. IR expression in control animals was alike in males and females during proestrus and estrus but reduced during diestrus. On pretreatment, IR protein expression decrease in hippocampus in males but remained alike in other regions and females. In summary, IR protein expression is regionally different in males and females, gender-dependent, and modulated during the stages of the estrus cycle in females. Contrary to expectations it is not modified on mild inhibition of oxidative phosphorylation in any region in females and altered in hippocampus solely in males. The latter effect, however, warrants further scrutiny concerning participation in pathophysiological cascades affecting the hippocampus such as in Alzheimer's disease.
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Affiliation(s)
- W H Xu
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medicine, Beijing, China
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Gong Y, Xiang YB, Zheng W, Xu WH, Shu XO. Body Size and Fat Distribution in Relation to Blood Pressure. Am J Epidemiol 2006. [DOI: 10.1093/aje/163.suppl_11.s9-c] [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: 11/12/2022] Open
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Tao MH, Xu WH, Zheng W, Gao YT, Ruan ZX, Cheng JR, Xiang YB, Shu XO. A case-control study in Shanghai of fruit and vegetable intake and endometrial cancer. Br J Cancer 2005; 92:2059-64. [PMID: 15886701 PMCID: PMC2361791 DOI: 10.1038/sj.bjc.6602609] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
In a population-based case–control study of 832 incident endometrial cancer cases and 846 frequency-matched controls among Chinese women in Shanghai, using a validated food-frequency questionnaire, dietary habits were estimated by in-person interviews. Total vegetable consumption was inversely associated with endometrial cancer risk (highest quartile vs lowest: OR=0.69, 95% CI 0.50–0.96). The risk was reduced with increasing intake of dark green/dark yellow vegetables (trend test, P=0.02), fresh legumes (trend test, P<0.01), and allium vegetables (trend test, P=0.04). Fruit consumption was unrelated to risk. These results suggest that high consumption of certain vegetables may reduce the risk of endometrial cancer.
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Affiliation(s)
- M H Tao
- Center for Health Services Research, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, 6009 Medical Center East, 1215 21st Avenue South, Nashville, TN 37232-8300, USA
- Currently a doctoral student at the Department of Epidemiology, School of Public Health, University of California at Los Angeles, Box 951772, Los Angeles, CA 90095-1772, USA
| | - W H Xu
- Department of Epidemiology, Shanghai Cancer Institute, #25 2200 Xie Tu Road, Shanghai 200032, People's Republic of China
| | - W Zheng
- Center for Health Services Research, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, 6009 Medical Center East, 1215 21st Avenue South, Nashville, TN 37232-8300, USA
| | - Y T Gao
- Department of Epidemiology, Shanghai Cancer Institute, #25 2200 Xie Tu Road, Shanghai 200032, People's Republic of China
| | - Z X Ruan
- Department of Epidemiology, Shanghai Cancer Institute, #25 2200 Xie Tu Road, Shanghai 200032, People's Republic of China
| | - J R Cheng
- Department of Epidemiology, Shanghai Cancer Institute, #25 2200 Xie Tu Road, Shanghai 200032, People's Republic of China
| | - Y B Xiang
- Department of Epidemiology, Shanghai Cancer Institute, #25 2200 Xie Tu Road, Shanghai 200032, People's Republic of China
| | - X O Shu
- Center for Health Services Research, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, 6009 Medical Center East, 1215 21st Avenue South, Nashville, TN 37232-8300, USA
- Center for Health Services Research, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, 6009 Medical Center East, 1215 21st Avenue South, Nashville, TN 37232-8300, USA. E-mail:
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Abstract
INTRODUCTION We tried to find a better surgical procedure of reconstruction after total gastrectomy. Seventy rats were operated to establish a model of orthotopic gastric transplantations which may also be important for abdominal multivisceral transplantation. OBJECTIVE To establish a rat model of orthotopic gastric transplantation. METHODS In the donor operation; after the spleen was resected and the proper hepatic artery ligated, the stomach was infused with cold (0 degrees C to 4 degrees C) sodium lactate Ringer's solution via the aorta. The stomach was resected with its peripheral blood vessels-the celiac trunk, the left gastric artery, the splenic artery, the common hepatic artery, the gastroepiploic artery, and the portal vein. In the recipient operation; after the stomach and the spleen were resected, the donor stomach was implanted. An end-to-side anastomosis was performed for the portal veins. After the end-to-end anastomosis between the donor celiac trunk and the recipient left gastric artery, the blood flow was opened. Then the anastomoses of the duodenum, and donor cardia to the recipient esophagus were performed in end-to-end style. RESULTS Thirty five operations were performed, in which the success rate in the last 20 cases was 80% (16/20). The average operative time was 2.35 hours. The longest survival time was over 3 months. CONCLUSION A rat model of orthotopic gastric transplantation was successfully established and provides a method to study abdominal multivisceral transplantation. It also provides a new way for reconstruction after the total gastrectomy.
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Affiliation(s)
- Y H Li
- Institute of Organ Transplantation, key laboratory, Tongji Hospital, The Affiliated Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China.
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Chen YY, Shen YL, Cao CM, Xu WH, Qian ZM, Xia Q. [Hydrogen peroxide augments the injury effect of iron on the isolated rat heart and cardiomyocytes]. Sheng Li Xue Bao 2001; 53:175-82. [PMID: 12589400] [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: 02/28/2023]
Abstract
By using Langendorff perfused rat heart and enzymatically isolated cardiomyocytes, we investigated the augmented injury effect of iron on the myocardium by hydrogen peroxide and the underlying mechanisms. Cell-permeable iron (Fe-HQ) decreased the contractile amplitude, velocity and end-diastolic cell length of the cardiomyocyte but increased the contents of lactate dehydrogenase (LDH) and creatine kinase (CK) in the coronary effluent and the myocardial malondialdehyde (MDA) while the left ventricular developed pressure (LVDP), +/-dp/dt(max), heart rate and coronary flow showed biphasic alterations. Hydrogen peroxide augmented the injury effect of iron accompanied by increases of coronary LDH, CK release and myocardial MDA content and decreases of LVDP, +/-dp/dt(max), and heart rate. Reduced glutathione could antagonize the injury effect of iron and hydrogen peroxide on the myocardium while dimethyl sulfoxide had no injury effect on the isolated heart. It is suggested that the functional injury of sulfhydryl group containing proteins may be involved in the augmentation of myocardial injury due to the increase of intracellular iron by hydrogen peroxide, but hydroxyl radicals may not.
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Affiliation(s)
- Y Y Chen
- Department of Physiology, Zhejiang University School of Medicine, 310006, Hong Kong
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Chen XH, Gao RL, Xu WH. [Effect of ginsenosides in inducing proliferation and transcription factor of erythrocytic, granulo-monocytic and megakarocytic cell lines]. Zhongguo Zhong Xi Yi Jie He Za Zhi 2001; 21:40-2. [PMID: 12577377] [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: 02/28/2023]
Abstract
OBJECTIVE To investigate the action of Ginsenosides (GS) in inducing transcription factor c-fos and GATA-1 to explore the mechanism of GS in hematopoietic cells. METHODS The proliferation effects of GS on granulocytic (HL-60), monocytic (U937), erythrocytic (K562) and megaryocytic (Meg-01) cell lines were observed by using proliferation test of MTT and colony formation of progenitor cells. The combining reaction of transcription factors c-fos and GATA-1 with nuclear protein antigen were analyzed by Western Blot after being treated by GS. RESULTS (1) GS (10 micrograms/ml) could stimulate and promote proliferation of 3 cell lines with significant difference between GS and non-GS control (P < 0.05 in all) in both MTT test and colony assay. (2) After treatment with GS, c-fos protein in HL-60, K562 and Meg-01 cell lines was increased by 1.5, 2.0 and 2.5 fold respectively, while U937 cell did not express c-fos. (3) Except that U937 cell hadn't expressed GATA-1, the other cell lines after the treatment by GS, the GATA-1 protein level was elevated to 1.5, 2.1 and 1.3 fold of that before treatment. CONCLUSION The proliferation of three lines initiated by GS was involved in transcription factor c-fos or GATA-1, which could pay the role in the GS induced up-regulation correlated with proliferation and differentiation of hematopoiesis.
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Affiliation(s)
- X H Chen
- Zhejiang Provincial Hospital of TCM, Hangzhou 310006
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Xu WH. [Molecular mechanism of diapause in Bombyx mori. 2. Diapause determination and expression of diapause hormone gene in pupal stage]. Yi Chuan Xue Bao 1999; 26:107-11. [PMID: 10375859] [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: 02/12/2023]
Abstract
Embryonic diapause in Bombyx is induced by diapause hormone (DH), which is produced in the suboesophageal ganglion from a precursor protein. We have cloned the DH cDNA into pBluescript KS vector that containing T7 RNA promoter can be used to synthesize nonspecific RNA. DH cRNA was synthesized and used as internal control. We quantitatively measured DH mRNA at SG of day 3 pupae by Northern hybridization analysis and suggested that the embryonic diapause of Bombyx in next generation was determined by DH mRNA content in SG.
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Affiliation(s)
- W H Xu
- Department of Biology, University of Science and Technology of China, Hefei
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Wang ZJ, Churchman M, Avizienyte E, McKeown C, Davies S, Evans DG, Ferguson A, Ellis I, Xu WH, Yan ZY, Aaltonen LA, Tomlinson IP. Germline mutations of the LKB1 (STK11) gene in Peutz-Jeghers patients. J Med Genet 1999; 36:365-8. [PMID: 10353780 PMCID: PMC1734361] [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: 02/12/2023]
Abstract
Germline mutations of the LKB1 (STK11) serine/threonine kinase gene (chromosome 19p13.3) cause Peutz-Jeghers syndrome, which is characterised by hamartomas of the gastrointestinal tract and typical pigmentation. Peutz-Jeghers syndrome carries an overall risk of cancer that may be up to 20 times that of the general population. Here, we report the results of a screen for germline LKB1 mutations by DNA sequencing in 12 Peutz-Jeghers patients (three sporadic and nine familial cases). Mutations were found in seven (58%) cases, in exons 1, 2, 4, 6, and 9. Five of these mutations, two of which are identical, are predicted to lead to a truncated protein (three frameshifts, two nonsense changes). A further mutation is an in frame deletion of 6 bp, resulting in a deletion of lysine and asparagine; the second of these amino acids is conserved between species. The seventh mutation is a missense change in exon 2, converting lysine to arginine, affecting non-conserved amino acids and of uncertain functional significance. Despite the fact that Peutz-Jeghers syndrome is usually an early onset disease with characteristic clinical features, predictive and diagnostic testing for LKB1 mutations will be useful for selected patients in both familial and non-familial contexts.
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Affiliation(s)
- Z J Wang
- Nuffield Department of Clinical Medicine, University of Oxford, John Radcliffe Hospital, UK
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Wang ZJ, Churchman M, Campbell IG, Xu WH, Yan ZY, McCluggage WG, Foulkes WD, Tomlinson IP. Allele loss and mutation screen at the Peutz-Jeghers (LKB1) locus (19p13.3) in sporadic ovarian tumours. Br J Cancer 1999; 80:70-2. [PMID: 10389980 PMCID: PMC2363028 DOI: 10.1038/sj.bjc.6690323] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Germline mutations in the LKB1 (STK11) gene (chromosome sub-band 19p13.3) cause characteristic hamartomas and pigmentation to develop in patients with Peutz-Jeghers syndrome. Peutz-Jeghers syndrome carries an overall risk of cancer that may be up to 20 times that of the general population and Peutz-Jeghers patients are at increased risk of benign and malignant ovarian tumours, particularly granulosa cell tumours. Loss of heterozygosity (allele loss, LOH) has been reported in about 50% of ovarian cancers on 19p13.3. LKB1 is therefore a candidate tumour suppressor gene for sporadic ovarian tumours. We found allele loss at the marker D19S886 (19p13.3) in 12 of 49 (24%) sporadic ovarian adenocarcinomas. Using SSCP analysis, we screened ten ovarian cancers with LOH, 35 other ovarian cancers and 12 granulosa cell tumours of the ovary for somatic mutations in LKB1. No variants were detected in any of the adenocarcinomas. Two mutations were detected in one of the granulosa cell tumours: a mis-sense mutation affecting the putative 'start' codon (ATG --> ACG, M1T); and a silent change in exon 7 (CTT --> CTA, leucine). Like BRCA1 and BRCA2, therefore, it appears that LKB1 mutations can cause ovarian tumours when present in the germline, but occur rarely in the soma. The allele loss on 19p13.3 in ovarian cancers almost certainly targets a different gene from LKB1.
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Affiliation(s)
- Z J Wang
- Nuffield Department of Clinical Medicine, University of Oxford, John Radcliffe Hospital, UK
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38
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Xu WH, Li W, Yue HW, Wang XL. Characteristics of transient outward K+ current in human atrial cardiomyocytes. Zhongguo Yao Li Xue Bao 1998; 19:481-5. [PMID: 10375816] [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: 02/12/2023]
Abstract
AIM To study the properties of transient outward potassium current (Ito) in human atrial myocytes. METHODS The patch-clamp whole-cell recording techniques were used. When the calcium inward current was blocked by CdCl2 (0.1 mmol.L-1), the transient outward potassium current (Ito) was recorded by depolarizing cells. RESULTS The current was voltage dependent, it was activated quickly and inactivated rapidly too. 4-Aminopyridine (4-AP) 10 mmol.L-1 (a selective blocker of Ito) blocked the current completely. The IC50 (95% confidence limits) of 4-AP on Ito were 0.67 (0.58-0.80) mmol.L-1, 4-AP 1 mmol.L-1 shifted the activation curve of Ito to positive potential, therefore a higher membrane potential was required to activate Ito. CONCLUSION Ito, a major K+ channel current in human atrial cells, is blocked by 4-AP.
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Affiliation(s)
- W H Xu
- Department of Pharmacology, Peking Union Medical College, Beijing, China
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Xu WH, Li W, Wang XL. [Study on delayed rectifier K+ current of rabbit vascular smooth muscle cells and comparison with cloned Kv1.5 channel]. Sheng Li Xue Bao 1998; 50:75-81. [PMID: 11324521] [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: 02/19/2023]
Abstract
Whole cell patch-clamp recording techniques were used to compare the electrophysiological properties between delayed rectifier K+ current of rabbit vascular smooth muscle cell (VSMC) and the cloned Kv1.5 channel. When VSMC is clamped at -40 mV, depolarizing the membrane potential at increasing steps of 10 mV could evoke a series of outward potassium currents without any deactivation. The V1/2 of the activation curve was 27.2 mV. The currents decrease obviously after adding 100 mmol/L TEA or 1 mmol/L 4AP in the perfusate. When the concentration of extracellular Ca2+ was decreased from 1.5 mmol/L to 0.5 or 0 mmol/L, the currents did not show much change, while in HBK7 (cloned Kv1.5 channel cell) held at -80 mV, similar steparise depolarization could also produce a series of outward potassium currents without any deactivation decayed. V1/2 of the activation was 0.8 mV. 4AP inhibited the cloned channel current with IC50 of 7.3 mmol/L, showing neither frequency- or use-dependence. TEA (30, 100 and 300 mmol/L) reduced the current by 28.6%, 37.4% and 46.3% respectively. Quinidine (0.1 and 1 mmol/L) decreased it by 29.7% and 37.4%. These results show what we have recorded in isolated rabbit vascular smooth muscle cells is the delayed rectifier potassium currents which are different in electrophysiological and pharmacological properties from those of cloned Kv1.5 channel current.
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Affiliation(s)
- W H Xu
- Department of Pharmacology, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical University, Beijing 100050
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Xu WH, Chen JQ. [Clinical observation and nursing care of patients with dengue fever]. Zhonghua Hu Li Za Zhi 1997; 32:148-9. [PMID: 9304973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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41
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Pinyarat W, Shimada T, Xu WH, Sato Y, Yamashita O, Kobayashi M. Linkage analysis of the gene encoding precursor protein of diapause hormone and pheromone biosynthesis-activating neuropeptide in the silkmoth, Bombyx mori. Genet Res (Camb) 1995; 65:105-11. [PMID: 7781995 DOI: 10.1017/s0016672300033127] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
We have determined the map position of the gene encoding a common precursor protein for diapause hormone and pheromone biosynthesis-activating neuropeptide (the DH-PBAN gene, Dh) in the silkmoth, Bombyx mori. First we compared the structure of introns in the DH-PBAN gene by the polymerase chain reaction, and found that the Dh locus carried three alleles, DhA1, DhA2 and DhB. The DhA1 and DhA2 alleles contained a fourth intron consisting of 740 bp, whereas DhB had a longer fourth intron of 770 bp. DhA1 and DhA2 contained a fifth intron consisting of 940 bp, whereas the fifth intron in DhB was much longer and consisted of 1700 bp. DhA1 was distinguished from DhA2 by an RFLP in the fifth intron after digestion with Rsa I. Linkage analyses using these polymorphisms showed that Dh was linked to the bp gene on chromosome 11, and independent of markers on chromosomes 1, 2, 3, 4, 5, 6, 7 and 13. To determine the map position, we obtained F1 hybrids between the n501 strain (K DhA1) and the w30 strain (+K DhB), and backcrossed the F1 hybrid to females of the w30 strain. From the segregation of K and Dh in 864 individuals in the next generation, the recombination value was calculated as 25.5% between K and Dh. Similarly we obtained backcross progeny between the No. 744 strain (Bu DhA1) and the w30 strain (+Bu DhB), and calculated the recombination value between Bu and Dh as 30.4% from 487 progeny.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- W Pinyarat
- Department of Agricultural Chemistry, University of Tokyo, Japan
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Xu WH, Sato Y, Ikeda M, Yamashita O. Molecular characterization of the gene encoding the precursor protein of diapause hormone and pheromone biosynthesis activating neuropeptide (DH-PBAN) of the silkworm, Bombyx mori and its distribution in some insects. Biochim Biophys Acta 1995; 1261:83-9. [PMID: 7893764 DOI: 10.1016/0167-4781(94)00238-x] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The diapause hormone is a 24 amino acid peptide amide which induces embryonic diapause of the silkworm, Bombyx mori. Diapause hormone, pheromone biosynthesis activating neuropeptide, and other three neuropeptides of FXPRL amide peptide family have been shown to be generated from a polyprotein precursor which is encoded by a single mRNA. We have cloned the genomic sequence encoding the precursor protein of diapause hormone-pheromone biosynthesis activating neuropeptide (DH-PBAN) by using a DH-PBAN cDNA as a probe, and analyzed its structure. The gene comprised six exons interspersed by five introns. The diapause hormone sequence along with a signal sequence was encoded in the first and second exons, and the pheromone biosynthesis activating neuropeptide was in the fourth and fifth exons. The major transcription initiation site of the gene was localized at 25 bp upstream from the translation start site. A single copy of this gene was present in a haploid genome. The 5'-upstream region of the gene contained a sequence similar to the ecdysone responsive element of Drosophila hsp 23 gene, and five decanucleotide motifs, which shared the homeodomain binding core sequence, TAAT. Genomic Southern analysis on DNA from some insect species other than the silkworm showed positive bands which hybridized with DH-PBAN cDNA of the silkworm. Thus, the DH-PBAN-like gene seems to be widely distributed in insects.
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Affiliation(s)
- W H Xu
- Laboratory of Sericultural Science and Entomoresources, School of Agricultural Sciences, Nagoya University, Japan
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Xu WH, Sato Y, Ikeda M, Yamashita O. Stage-dependent and temperature-controlled expression of the gene encoding the precursor protein of diapause hormone and pheromone biosynthesis activating neuropeptide in the silkworm, Bombyx mori. J Biol Chem 1995; 270:3804-8. [PMID: 7876122 DOI: 10.1074/jbc.270.8.3804] [Citation(s) in RCA: 82] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Embryonic diapause and sex pheromone biosynthesis in the silkworm, Bombyx mori, are, respectively, induced by diapause hormone (DH) and pheromone biosynthesis activating neuropeptide (PBAN), which are produced in the subesophageal ganglion from a common polyprotein precursor (DH-PBAN precursor) encoded by a single gene (DH-PBAN gene). Using DH-PBAN cDNA as a probe, we quantitatively measured DH-PBAN mRNA content throughout embryonic and postembryonic development and observed the effects of incubation temperature, which is a key factor for determination of diapause, on DH-PBAN gene expression. The silkworm, which is programmed to lay diapause eggs by being incubated at 25 degrees C, showed peaks of DH-PBAN mRNA content at five different stages throughout the life cycle: at the late embryonic stage, at the middle of the fourth and the fifth larval instars, and at early and late stages of pupal-adult development. In the non-diapause type silkworms programmed by a 15 degrees C incubation, only the last peak of DH-PBAN mRNA in pupal-adult development was found, and the other peaks were absent. Furthermore, interruption of the incubation period at 25 degrees C by incubation at 15 degrees C decreased both DH-PBAN mRNA content in mature embryos and in subesophageal ganglia of day 3 pupae and the incidence of diapause eggs. Thus, there were two types of regulatory mechanisms for DH-PBAN gene expression. One is a temperature-controlled expression that is responsible for diapause induction, and the other is a temperature-independent, stage-dependent expression related to pheromone production.
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Affiliation(s)
- W H Xu
- Laboratory of Sericultural Science and Entomoresources, School of Agricultural Sciences, Nagoya University, Japan
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Gong QY, Chen LA, Li JZ, Xu WH, Yang ZC. Effects of endothelin-1 on isolated uterine horns in estrogen-primed and pregnant mice. Zhongguo Yao Li Xue Bao 1994; 15:129-32. [PMID: 8010105] [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: 01/28/2023]
Abstract
Mouse uterine horns from 4 states (estrogen-primed and early-, mid-, and late-pregnancy) were used to study the effect of endothelin-1 (ET) vs carboprost (Car) and oxytocin (Oxy). In K(+)-Krebs (KCl 40 mmol.L-1) solution, ET (1-300 nmol.L-1), Car (0.002-20 mumol.L-1), and Oxy (0.6-60 nmol.L-1) evoked concentration-dependent increases in tension of the uterine horns from 4 different states. Emax for ET were 1.12 +/- 0.26, 1.27 +/- 0.18, and 1.49 +/- 0.13 g in early-, mid-, and late-pregnancies, respectively. Emax for Car in mid- was twice that in late-pregnancy, whereas Emax for Oxy in late- was thrice that in mid-pregnancy. EC50 for ET were 9.6, 5.8, and 6.3 nmol.L-1 in early-, mid-, and late-pregnancies, respectively, and were only 2% to 7% of that for Car and 3-15 times of that for Oxy in various gravid stages. The results suggest that the contractile activity of pregnant mouse uterus to ET is more potent than that of Car while slightly weaker than that of Oxy.
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Affiliation(s)
- Q Y Gong
- Department of Pharmacology, School of Basic Medical Sciences, Shanghai Medical University, China
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Xu WH. [Water-soluble constituents of Cordyceps sinenses (Berk.) Sacc.--the nucleosides]. Zhong Yao Tong Bao 1988; 13:34-6, 63. [PMID: 3197200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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46
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Xu WH, Xue Z. [The chemical structure of neohyacinthoside]. Yao Xue Xue Bao 1988; 23:61-3. [PMID: 3400478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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47
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Xu WH. [Application of spectral analysis to the determination of structures of saccharide moiety in glycosides]. Yao Xue Xue Bao 1987; 22:869-80. [PMID: 3330894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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48
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Chen MH, Dong BW, Li JG, Wang B, Zhang J, Xu GW, Lin BY, Xu WH, Huang XF, Li JY. [Ultrasound-guided percutaneous fine-needle puncture cytology in the diagnosis of malignant tumors of the liver]. Zhonghua Zhong Liu Za Zhi 1986; 8:447-9. [PMID: 3034536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Results of ultrasound guided percutaneous fine-needle puncture cytology in 142 cases of malignant tumors of the liver are reported. The positive cytology was noted in 118 (83.1%) (10 suspicious). The primary liver cancer comprised 99 cases. In 7 lesions, equal to or less than 3 cm in diameters, 6 were positive in cytology. In 20,3-5 cm in size, 18 were positive. In 15 false-negatives, 12 were larger than 5 cm in diameter. Among 43 cases of metastatic liver cancer, 34 showed positive cytology and 9 false-negative. Among 108 cases of benign hepatic diseases, in 49.1%, it was difficult to arrive at definitive diagnosis by ultrasonography only, but in 97.2% malignancy was excluded by ultrasound guided fine-needle puncture cytology. The suspicious false-positive result occurred only in 3 cases. In this series, there were 250 cases of malignant tumors and benign diseases. The overall accurate diagnostic rate was 89.2%. All the patients had been followed for more than 6 months. The differential diagnosis between malignant and benign tumors, causes of misdiagnosis and complications are discussed.
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Xu WH, Xue Z. [Chemical investigation of glycosidal steroidal alkaloids of Northoliron hyacinthinum]. Yao Xue Xue Bao 1986; 21:177-82. [PMID: 3788581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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50
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Xu WH. [Genetics and genetic diseases (VI)]. Zhonghua Hu Li Za Zhi 1984; 19:368-71. [PMID: 6571047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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