151
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Wan CJ, Liu YH, Feng P, Wang W, Zhu LQ, Liu ZP, Shi Y, Wan Q. Flexible Metal Oxide/Graphene Oxide Hybrid Neuromorphic Transistors on Flexible Conducting Graphene Substrates. Adv Mater 2016; 28:5878-5885. [PMID: 27159546 DOI: 10.1002/adma.201600820] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 04/11/2016] [Indexed: 06/05/2023]
Abstract
Flexible metal oxide/graphene oxide hybrid multi-gate neuromorphic transistors are fabricated on flexible conducting graphene substrates. Dendritic integrations in both spatial and temporal modes are emulated, and spatiotemporal correlated logics are obtained. A proof-of-principle visual system model for emulating Lobula Giant Motion Detector neuron is also investigated. The results are of great significance for flexible sensors and neuromorphic cognitive systems.
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Affiliation(s)
- Chang Jin Wan
- School of Electronic Science and Engineering and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
- Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Yang Hui Liu
- Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Ping Feng
- School of Electronic Science and Engineering and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Wei Wang
- School of Electronic Science and Engineering and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
- Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Li Qiang Zhu
- Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Zhao Ping Liu
- Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Yi Shi
- School of Electronic Science and Engineering and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Qing Wan
- School of Electronic Science and Engineering and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
- Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
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152
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Yang JY, Zhang XX, Yu RJ, Feng P, Zong ZY. [One Carrier of Robinsoniella peoriensis in China]. Sichuan Da Xue Xue Bao Yi Xue Ban 2016; 47:615-617. [PMID: 28591972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVES To study morphological feature, biochemical characteristic and antibiotic resistance of Robinsoniella peoriensis (R.peoriensis) strain. METHODS The clinical R.peoriensis strain was isolated from ananus swab samples being screened in ICU. Biochemical characteristic of the strain was completed by fully automatic microbial identification and drug susceptibility analysis system (BioMérieux, Marcy-l'éE toile, France) with the ANC Vitek2. Antibiotic susceptibility in vitro was performed using agar dilution. RESULTS The organism was found to be positive to saccharose, beta-galactopyr anosidase indoxyl, alpha-arabinosidase and so on, while negative to the others. The susceptibility test in vitro showed that this strain was resistant to clindamycin, rifampicin, moxifloxacin, while sensitive to vancomycin, metronidazole and tetracycline. CONCLUSIONS R.peoriensis is positive to many biochemical products such as saccharose. The clinical isolate of R.peoriensis strain is resistant to clindamycin, rifampicin and moxifloxacin.
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Affiliation(s)
- Jing-Yu Yang
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xiao-Xia Zhang
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ru-Jia Yu
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ping Feng
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhi-Yong Zong
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu 610041, China
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153
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Qu J, Feng P, Luo Y, Lü X. Impact of hepatic function on serum procalcitonin for the diagnosis of bacterial infections in patients with chronic liver disease: A retrospective analysis of 324 cases. Medicine (Baltimore) 2016; 95:e4270. [PMID: 27472699 PMCID: PMC5265836 DOI: 10.1097/md.0000000000004270] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Although procalcitonin (PCT) is a valid marker for early diagnosis of bacterial infections, it is unclear whether its accuracy in predicting bacterial infections is affected by impaired liver function. This study aimed to assess the impact of compromised liver function on the diagnostic value of PCT.This retrospective study was conducted between January 2013 and May 2015. A total of 324 patients with chronic liver disease were enrolled. Routine laboratory measurements and PCT were performed. Patients were divided into 3 groups according to clinical diagnosis: chronic hepatitis (group 1), decompensated cirrhosis (group 2), and acute-on-chronic liver failure/chronic liver failure (group 3). The correlation between PCT and liver function was analyzed. The area under the receiver operating characteristic (AUCROC) curve of PCT was analyzed according to infection status and liver function.PCT was more accurate than white blood cell count (P < 0.001) and percentage of neutrophils (P < 0.001) in detecting bacterial infections in patients with impaired liver function. In patients without infection, PCT had a moderate positive correlation with serum total bilirubin (TBIL) (r = 0.592), and a weak correlation with model for end-stage liver disease score (r = 0.483) and international normalized ratio (r = 0.389). The AUCROC and optimum thresholds of PCT and for predicting bacterial infections at different levels of TBIL were 0.907 (95% CI 0.828-0.958) and 0.38 ng/mL, respectively, for TBIL <5 mg/dL, 0.927 (95% CI 0.844-0.974) and 0.54 ng/mL (5 mg/dL ≤TBIL<10 mg/dL), 0.914 (95% CI 0.820-0.968) and 0.61 ng/mL (10 mg/dL ≤TBIL<20 mg/dL), 0.906 (95% CI 0.826-0.958) and 0.94 ng/mL (TBIL ≥20 mg/dL), respectively.This study demonstrated that PCT was a valuable marker of bacterial infection in patients with chronic liver diseases. TBIL affected PCT threshold, so different cut-offs should be used according to different TBIL values.
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Affiliation(s)
| | | | - Yan Luo
- Department of Rheumatology, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaoju Lü
- Center of Infectious Disease
- Correspondence: Xiaoju Lü, Center of Infectious Disease, West China Hospital, Sichuan University, Chengdu, China (e-mail: )
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154
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Xiao LH, Chen PR, Li M, Gou ZP, Xiang LC, Li YZ, Feng P. [Tree-Augmented NaÏve Bayesian network model for predicting prostate cancer]. Zhonghua Nan Ke Xue 2016; 22:506-510. [PMID: 28963838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To evaluate the integrated performance of age, serum PSA, and transrectal ultrasound images in the prediction of prostate cancer using a Tree-Augmented NaÏve (TAN) Bayesian network model. METHODS We collected such data as age, serum PSA, transrectal ultrasound findings, and pathological diagnoses from 941 male patients who underwent prostate biopsy from January 2008 to September 2011. Using a TAN Bayesian network model, we analyzed the data for predicting prostate cancer, and compared them with the gold standards of pathological diagnosis. RESULTS The accuracy, sensitivity, specificity, positive prediction rate, and negative prediction rate of the TAN Bayesian network model were 85.11%, 88.37%, 83.67%, 70.37%, and 94.25%, respectively. CONCLUSIONS Based on age, serum PSA, and transrectal ultrasound images, the TAN Bayesian network model has a high value for the prediction of prostate cancer, and can help improve the clinical screening and diagnosis of the disease.
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Affiliation(s)
- Li-Hong Xiao
- Department of Epidemiology and Biostatistics, West China School of Public Health; Sichuan University, Chengdu, Sichuan 610041, China
| | - Pei-Ran Chen
- Department of Epidemiology and Biostatistics, West China School of Public Health; Sichuan University, Chengdu, Sichuan 610041, China
| | - Mei Li
- National Institute for Clinical Drug Trials, West China Hospital; Sichuan University, Chengdu, Sichuan 610041, China
| | - Zhong-Ping Gou
- National Institute for Clinical Drug Trials, West China Hospital; Sichuan University, Chengdu, Sichuan 610041, China
| | - Liang-Cheng Xiang
- Department of Epidemiology and Biostatistics, West China School of Public Health; Sichuan University, Chengdu, Sichuan 610041, China
| | - Yong-Zhong Li
- Department of Ultrasonography, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Ping Feng
- National Institute for Clinical Drug Trials, West China Hospital; Sichuan University, Chengdu, Sichuan 610041, China
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155
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Abstract
Nitroreductase (NTR) is an endogenous reductase overexpressed in hypoxic tumors; however, its precise detection in living cells and animals remains a considerable challenge. Herein, we developed three reaction-based probes and a related bioluminescence assay for the real-time NTR detection. The high sensitivity and selectivity of probe 3, combined with its remarkable potential of bioluminescence imaging, affords a valuable approach for in vivo imaging of NTR in a tumor model mouse.
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Affiliation(s)
- Ping Feng
- Institute of Clinical Trials, West China Hospital, Sichuan University , Chengdu, Sichuan 610041, China
| | - Huateng Zhang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University , Jinan, Shandong 250012, China
| | - Quankun Deng
- The Laboratory of Anesthesiology and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University , Chengdu, Sichuan 610041, China
| | - Wei Liu
- The Laboratory of Anesthesiology and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University , Chengdu, Sichuan 610041, China
| | - Linghui Yang
- The Laboratory of Anesthesiology and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University , Chengdu, Sichuan 610041, China
| | - Guobo Li
- The Laboratory of Anesthesiology and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University , Chengdu, Sichuan 610041, China
| | - Guo Chen
- The Laboratory of Anesthesiology and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University , Chengdu, Sichuan 610041, China
| | - Lupei Du
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University , Jinan, Shandong 250012, China
| | - Bowen Ke
- The Laboratory of Anesthesiology and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University , Chengdu, Sichuan 610041, China
| | - Minyong Li
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University , Jinan, Shandong 250012, China
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156
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Wan CJ, Zhu LQ, Liu YH, Feng P, Liu ZP, Cao HL, Xiao P, Shi Y, Wan Q. Proton-Conducting Graphene Oxide-Coupled Neuron Transistors for Brain-Inspired Cognitive Systems. Adv Mater 2016; 28:3557-63. [PMID: 26972820 DOI: 10.1002/adma.201505898] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [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: 11/28/2015] [Revised: 12/21/2015] [Indexed: 05/26/2023]
Abstract
Proton-conducting graphene oxide electrolyte films with very high electric-double-layer capacitance are used as the gate dielectrics for oxide-based neuron transistor fabrication. Paired-pulse facilitation, dendritic integration, and orientation tuning are successfully emulated. Additionally, neuronal gain controls (arithmetic) are also experimentally demonstrated. The results provide a new-concept approach for building brain-inspired cognitive systems.
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Affiliation(s)
- Chang Jin Wan
- School of Electronic Science and Engineering and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
| | - Li Qiang Zhu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
| | - Yang Hui Liu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
| | - Ping Feng
- School of Electronic Science and Engineering and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Zhao Ping Liu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
| | - Hai Liang Cao
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
| | - Peng Xiao
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
| | - Yi Shi
- School of Electronic Science and Engineering and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Qing Wan
- School of Electronic Science and Engineering and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
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157
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Wan CJ, Liu YH, Zhu LQ, Feng P, Shi Y, Wan Q. Short-Term Synaptic Plasticity Regulation in Solution-Gated Indium-Gallium-Zinc-Oxide Electric-Double-Layer Transistors. ACS Appl Mater Interfaces 2016; 8:9762-9768. [PMID: 27007748 DOI: 10.1021/acsami.5b12726] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [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: 06/05/2023]
Abstract
In the biological nervous system, synaptic plasticity regulation is based on the modulation of ionic fluxes, and such regulation was regarded as the fundamental mechanism underlying memory and learning. Inspired by such biological strategies, indium-gallium-zinc-oxide (IGZO) electric-double-layer (EDL) transistors gated by aqueous solutions were proposed for synaptic behavior emulations. Short-term synaptic plasticity, such as paired-pulse facilitation, high-pass filtering, and orientation tuning, was experimentally emulated in these EDL transistors. Most importantly, we found that such short-term synaptic plasticity can be effectively regulated by alcohol (ethyl alcohol) and salt (potassium chloride) additives. Our results suggest that solution gated oxide-based EDL transistors could act as the platforms for short-term synaptic plasticity emulation.
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Affiliation(s)
- Chang Jin Wan
- School of Electronic Science & Engineering and Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210093, China
- Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, China
| | - Yang Hui Liu
- Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, China
| | - Li Qiang Zhu
- Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, China
| | - Ping Feng
- School of Electronic Science & Engineering and Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210093, China
| | - Yi Shi
- School of Electronic Science & Engineering and Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210093, China
| | - Qing Wan
- School of Electronic Science & Engineering and Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210093, China
- Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, China
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158
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Li S, Chen X, Li Q, Du J, Liu Z, Peng Y, Xu M, Li Q, Lei M, Wang C, Zheng S, Zhang X, Yu H, Shi J, Tao S, Feng P, Tian H. Effects of acetyl-L-carnitine and methylcobalamin for diabetic peripheral neuropathy: A multicenter, randomized, double-blind, controlled trial. J Diabetes Investig 2016; 7:777-85. [PMID: 27180954 PMCID: PMC5009142 DOI: 10.1111/jdi.12493] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 02/01/2016] [Accepted: 02/04/2016] [Indexed: 02/05/2023] Open
Abstract
AIMS/INTRODUCTION To assess the efficacy and safety of acetyl-L-carnitine (ALC) on diabetic peripheral neuropathy compared with methylcobalamin (MC). MATERIALS AND METHODS This was a multicenter, randomized, parallel-group, double-blind, double-dummy, positive-controlled, non-inferior phase II clinical trial. Diabetic patients with abnormal nerve conduction test results were randomized in a 1:1 ratio to receive oral ALC 500 mg t.i.d. or MC 0.5 mg t.i.d. for 24 weeks. The neuropathy symptom score, neuropathy disability score and neurophysiological parameters were measured during follow up. RESULTS A total of 232 patients were randomized (ALC n = 117, MC n = 115), 88% of which completed the trial. At week 24, patients from both groups had significant reductions in both neuropathy symptom score and neuropathy disability score with no significant difference between two groups (neuropathy symptom score reduction: ALC vs MC 2.35 ± 2.23, P < 0.0001 vs 2.11 ± 2.48, P < 0.0001, intergroup P = 0.38; neuropathy disability score reduction ALC vs MC 1.66 ± 1.90, P < 0.0001 vs 1.35 ± 1.65, P < 0.0001, intergroup P = 0.23). Neurophysiological parameters were also improved in both groups. No significant difference was found between groups in the development of adverse events. CONCLUSIONS ALC is as effective as MC in improving clinical symptoms and neurophysiological parameters for patients with diabetic peripheral neuropathy over a 24-week period with good tolerance.
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Affiliation(s)
- Sheyu Li
- Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, China
| | - Xiang Chen
- Laboratory of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, China
| | - Qianrui Li
- Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, China
| | - Juan Du
- Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, China
| | - Zhimin Liu
- Department of Endocrinology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Yongde Peng
- Department of Endocrinology and Metabolism, Shanghai First People's Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Mian Xu
- Department of Endocrine and Metabolic Diseases, The Second Affiliated Hospital of Kunming Medical College, Kunming, China
| | - Qifu Li
- Department of Endocrinology, The First Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Minxiang Lei
- Department of Endocrinology, Xiangya Hospital of Central South University, Changsha, China
| | - Changjiang Wang
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Shaoxiong Zheng
- Department of Endocrinology and Metabolism, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Xiaojuan Zhang
- Laboratory of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, China
| | - Hongling Yu
- Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, China
| | - Jinyu Shi
- Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, China
| | - Shibing Tao
- Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, China
| | - Ping Feng
- Statistics Department of GCP Center, West China Hospital, Sichuan University, Chengdu, China
| | - Haoming Tian
- Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, China
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159
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Feng P, Zhao Y, Wu XM, Ma YY, Yang TB, Li CG, Yang ZZ. Four new species of Psechrus from Yunnan Province, China (Araneae, Psechridae). Zootaxa 2016; 4088:177-200. [PMID: 27394334 DOI: 10.11646/zootaxa.4088.2.2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Indexed: 11/04/2022]
Abstract
Four new species of Psechrus are described from Yunnan Province: P. changminae sp. nov., P. conicus sp. nov., P. discoideus sp. nov. and P. spatulatus sp. nov. Herewith the number of species belonging to Psechrus in Yunnan Province extended from five to nine. Illustrations and colour photos are provided, with comparison of intraspecific variation of copulatory organs.
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Affiliation(s)
- Ping Feng
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Yunnan Province, Dali University, Dali 671000, China; unknown
| | - Yu Zhao
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Yunnan Province, Dali University, Dali 671000, China; unknown
| | - Xiu-Mei Wu
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Yunnan Province, Dali University, Dali 671000, China; unknown
| | - Yan-Yan Ma
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Yunnan Province, Dali University, Dali 671000, China; unknown
| | - Ting-Bang Yang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Yunnan Province, Dali University, Dali 671000, China; unknown
| | - Cheng-Gong Li
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Yunnan Province, Dali University, Dali 671000, China; unknown
| | - Zi-Zhong Yang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Yunnan Province, Dali University, Dali 671000, China; unknown
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160
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Abstract
Drug-associated thrombocytopenia is common and curable, but there were few reports about entecavir-associated thrombocytopenia.We report here a case of a 65-year-old female patient with decompensated cirrhosis. The patient developed a fatal thrombocytopenia while under entecavir treatment. After she received entecavir treatment for 4 days, the patient's platelet count dropped significantly to 1 × 10/L, accompanied with a manifestation of mild sclera bleeding. All diagnostic data suggested an entecavir-induced immunological thrombocytopenia. The patient eventually fully recovered after treated with daily intravenous immunoglobulin infusions.Actually, there were only a handful of reports that children or adults with chronic hepatitis B developed a thrombocytopenia due to nucleoside analogue medication. Timeliness of intravenous immunoglobulin infusion could stop the fatal bleeding for patients with entecavir-associated immunological thrombocytopenia. Hence, early diagnosis and treatment are recommended. Our case suggested that the platelet count should be monitored regularly in patients with decompensated cirrhosis with underline immunological disease while treated with ETV.
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Affiliation(s)
- Xiaoli Fan
- From the Department of Gastroenterology and Hepatology (XF); Center for Infectious Diseases (LC, JY, PF), West China Hospital, Sichuan University, Chengdu, Sichuan, China
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161
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Abstract
Low-temperature sol-gel processed silica electrolyte films showed a high specific capacitance of 3.0 μF/cm(2) due to the electric-double-layer (EDL) effect. Oxide-based transistors gated by such silica electrolyte films show a high on/off ratio (>10(7)) and a very low operation voltage (<2.0 V). The proton-related dynamic modulation in these devices makes them ideal candidates for biological synapse emulation. Short-term synaptic plasticity, such as paired pulse facilitation, was successfully emulated. Most importantly, spiking and logic operation were also demonstrated when two lateral in-plane gates were used as the presynaptic inputs. Our oxide-based EDL transistors gated by sol-gel processed silica electrolyte films provide an interesting approach for synaptic behavior emulation, which is interesting for brain-inspired neuromorphic systems.
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Affiliation(s)
- Feng Shao
- School of Electronic Science & Engineering, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210093, China
| | - Yi Yang
- School of Electronic Science & Engineering, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210093, China
| | - Li Qiang Zhu
- School of Electronic Science & Engineering, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210093, China
| | - Ping Feng
- School of Electronic Science & Engineering, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210093, China
| | - Qing Wan
- School of Electronic Science & Engineering, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210093, China
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162
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Xiang LC, Xiao LH, Li M, Mou JH, Wang HP, Zhang W, Feng P. [Diagnosis Values of Back Propagation Neural Network Integrating Age, Transrectal Ultrasound Characteristics and Serum PSA for Prostate Cancer]. Sichuan Da Xue Xue Bao Yi Xue Ban 2016; 47:77-84. [PMID: 27062787] [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: 06/05/2023]
Abstract
OBJECTIVE To explore the diagnosis value of back propagation (BP) neural network integrating age, transrectal ultrasound characteristics and serum prostate specific antigen (PSA) for prostate cancer. METHODS The data of age, PSA, and transrectal ultrasound characteristics were collected from 941 patients who received color doppler transrectal ultrasound scan and systemic biopsies of prostates. A prostate cancer diagnosis system of BP neural network with age, transrectal ultrasound characteristics and serum PSA was developed in MATLAB software, and its diagnostic value for prostate cancer was analyzed based on the pathological results of prostatic biopsy. RESULTS The biopsy results confirmed 358 cases of prostate cancer (38.04%) and 583 cases noncancerous prostate diseases (61.96%). The sensitivity, specificity, accuracy, positive value and negative predictive value of BP neural networks for prostate cancer diagnosis were 78.57%, 92.94%, 87.23%, 88.00% and 86.81% respectively. CONCLUSION Back propagation neural network with age, transrectal ultrasound characteristics and PSA shows good diagnosis value for prostate cancer.
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163
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Shao F, Wan X, Yang Y, Du P, Feng P. Optimization of chitosan gated electric double layer transistors by combining nanoparticle incorporation and acid doping. RSC Adv 2016. [DOI: 10.1039/c6ra23220e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Electric double layer transistors gated by bio-polyelectrolyte chitosan could be optimized by combining nanoparticle incorporation and acid doping.
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Affiliation(s)
- Feng Shao
- School of Electronic Science & Engineering
- Nanjing University
- Nanjing 210093
- China
| | - Xiang Wan
- School of Electronic Science & Engineering
- Nanjing University
- Nanjing 210093
- China
| | - Yi Yang
- School of Electronic Science & Engineering
- Nanjing University
- Nanjing 210093
- China
| | - Peifu Du
- School of Electronic Science & Engineering
- Nanjing University
- Nanjing 210093
- China
| | - Ping Feng
- School of Electronic Science & Engineering
- Nanjing University
- Nanjing 210093
- China
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164
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Yu X, Wang P, Shi Z, Dong K, Feng P, Wang H, Wang X. Urotensin-II-Mediated Reactive Oxygen Species Generation via NADPH Oxidase Pathway Contributes to Hepatic Oval Cell Proliferation. PLoS One 2015; 10:e0144433. [PMID: 26658815 PMCID: PMC4676694 DOI: 10.1371/journal.pone.0144433] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 11/18/2015] [Indexed: 02/07/2023] Open
Abstract
Urotensin II (UII), a somatostatin-like cyclic peptide, is involved in tumor progression due to its mitogenic effect. Our previous study demonstrated that UII and its receptor UT were up-regulated in human hepatocellular carcinoma (HCC), and exogenous UII promoted proliferation of human hepatoma cell line BEL-7402. Hepatic progenitor cell (HPCs) are considered to be one of the origins of liver cancer cells, but their relationship with UII remains unclear. In this work, we aimed to investigate the effect of UII on ROS generation in HPCs and the mechanisms of UII-induced ROS in promoting cell proliferation. Human HCC samples were used to examine ROS level and expression of NADPH oxidase. Hepatic oval cell line WB-F344 was utilized to investigate the underlying mechanisms. ROS level was detected by dihydroethidium (DHE) or 2’, 7’-dichlorofluorescein diacetate (DCF-DA) fluorescent probe. For HCC samples, ROS level and expression of NADPH oxidase were significantly up-regulated. In vitro, UII also increased ROS generation and expression of NADPH oxidase in WB-F344 cells. NADPH oxidase inhibitor apocynin pretreatment partially abolished UII-increased phosphorylation of PI3K/Akt and ERK, expression of cyclin E/cyclin-dependent kinase 2. Cell cycle was then analyzed by flow cytometry and UII-elevated S phase proportion was inhibited by apocynin pretreatment. Finally, bromodeoxyuridine (Brdu) incorporation assay showed that apocynin partially abolished UII induced cell proliferation. In conclusion, this study indicates that UII-increased ROS production via the NADPH oxidase pathway is partially associated with activation of the PI3K/Akt and ERK cascades, accelerates G1/S transition, and contributes to cell proliferation. These results showed that UII plays an important role in growth of HPCs, which provides novel evidence for the involvement of HPCs in the formation and pathogenesis of HCC.
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Affiliation(s)
- XiaoTong Yu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
- Beijing Key Laboratory for Cancer Invasion and Metastasis Research, Capital Medical University, Beijing, China
| | - PengYan Wang
- Department of Pathology, Peking Union Medical Hospital, Beijing, China
| | - ZhengMing Shi
- Department of General Surgery, Beijing Jishuitan Hospital, Beijing, China
| | - Kun Dong
- Department of Pathology, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Ping Feng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
- Beijing Key Laboratory for Cancer Invasion and Metastasis Research, Capital Medical University, Beijing, China
| | - HongXia Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - XueJiang Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
- Beijing Key Laboratory for Cancer Invasion and Metastasis Research, Capital Medical University, Beijing, China
- * E-mail:
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165
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Luo Z, Zhang Y, Gu J, Feng P, Wang Y. Pharmacokinetic Properties of Single- and Multiple-Dose Pitavastatin Calcium Tablets in Healthy Chinese Volunteers. Curr Ther Res Clin Exp 2015; 77:52-7. [PMID: 26082816 PMCID: PMC4460194 DOI: 10.1016/j.curtheres.2015.02.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 02/17/2015] [Indexed: 02/05/2023]
Abstract
BACKGROUND Pitavastatin is a newly developed 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor approved for the treatment of hyperlipidemia. Pharmacokinetic properties of pitavastatin have been studied previously. OBJECTIVE To investigate the pharmacokinetic properties of pitavastatin in healthy Chinese volunteers after single-dose and multiple-dose administration. METHODS An open-label, randomized, single-dose and multiple-dose study was conducted in healthy Chinese volunteers. The study included 4 stages, each separated with a 5-day washout period. A randomized, 3-way crossover design was carried out in Stages 1 to 3 for the single-dose study. Eligible subjects were randomized to receive a single 1 mg, 2 mg, or 4 mg pitavastatin calcium tablet. Blood samples were obtained predose and up to 36 hours following dosing. In Stage 4 the subjects received a 2-mg pitavastatin calcium tablet once daily for 6 days. At the last day of multiple dosing, blood samples were collected predose and up to 48 hours following dosing. Plasma pitavastatin was quantified by a validated liquid chromatography tandem mass spectrometry method. Tolerability was assessed by the adverse events, physical examination, 12-lead ECG, and laboratory tests. RESULTS Twelve volunteers (6 male and 6 female) were enrolled in the study and 11 of them completed all 4 study stages. Following a single dose of 1 mg, 2 mg, and 4 mg, the mean (SD) Tmax values were 0.63 (0.17) hours, 0.65 (0.17) hours, and 0.79 (0.36) hours, respectively; the corresponding Cmax values were 66.80 (16.32) ng/mL, 106.09 (31.59) ng/mL, and 232.91 (66.42) ng/mL, respectively. AUC0-36 values were 190.04 (38.97) ng/mL/h, 307.87 (57.94) ng/mL/h, and 785.10 (166.08) ng/mL/h, respectively, whereas t1/2 values were 10.99 (2.70) hours, 9.52 (2.58) hours, and 10.38 (4.28) hours, respectively. The AUC and Cmax showed dose proportionality after single dosing according to linear-regression analysis. In the multiple-dose study, a rapid absorption (Tmax of 0.68 [0.20] hours) and marked peak concentration of 90.99 (36.88) ng/mL were observed. AUC0-48 and AUCss were 306.28 (130.02) ng/mL/h and 256.16 (116.34) ng/mL/h, respectively. The elimination half-life after multiple dosing was significantly prolonged, which amounted to 13.31 (2.58) hours. Comparison of the pharmacokinetic parameters between the male and female groups revealed no significant differences. CONCLUSIONS In healthy Chinese volunteers, single dosing of 1 mg, 2 mg, and 4 mg pitavastatin resulted in linear plasma pharmacokinetic properties. Compared with single dosing, multiple dosing of pitavastatin showed different distribution and elimination characteristics. Sex did not appear to affect the pharmacokinetic properties of pitavastatin. Chictr.org identifier: ChiCTR-OO-13004294.
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Affiliation(s)
- Zhu Luo
- Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu China
| | - Yunhui Zhang
- Research Center for Drug Metabolism, College of Life Science, Jilin University, Changchun, China
| | - Jingkai Gu
- Research Center for Drug Metabolism, College of Life Science, Jilin University, Changchun, China
| | - Ping Feng
- Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu China
| | - Ying Wang
- Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu China
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Abstract
Immunological T cells and associated cytokines have been shown to be involved in the pathogenesis of multiple myeloma (MM). However, the abnormal immune imbalance of T lymphocyte subsets on MM remains unknown. We investigate the proportions of T helper 1 (Th1)/Th2/Th17/T regulatory (Treg) cells in peripheral blood mononuclear cells (PBMCs) by flow cytometry (FCM), and serum levels of relevant cytokines in MM patients and controls were detected by enzyme-linked immunosorbent assay (ELISA). The messenger RNA (mRNA) expression of T-bet, STAT6, RORgammat, and Foxp3 was measured by real-time quantitative polymerase chain reaction (PCR). The CD4+ Th1 and CD4+ Th17 cells in patients with MM were significantly higher than those in health controls as well as the expression of T-bet and RORgammat mRNA. Furthermore, serum levels of interferon gamma (IFN-γ), IL-6, and IL-17A in MM group were greatly increased and significantly associated with each other. Significant differences on Th cells, cytokines, and transcription factors were observed on MM patients. The imbalance of T lymphocyte subsets was thought to contribute to the pathogenesis and underlying mechanisms of MM.
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Affiliation(s)
- Ping Feng
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, 215004, People's Republic of China
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167
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Feng P, Zhang H, Zhang Z, Dai X, Mao T, Fan Y, Xie X, Wen H, Yu P, Hu Y, Yan R. The interaction of MMP-2/B7-H3 in human osteoporosis. Clin Immunol 2015; 162:118-24. [PMID: 26631755 DOI: 10.1016/j.clim.2015.11.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 11/14/2015] [Accepted: 11/24/2015] [Indexed: 11/19/2022]
Abstract
The immune costimulatory molecule B7-H3 has been shown to be involved in the regulation of murine bone formation. However, the role of B7-H3 in bone metabolic diseases remains unknown. In our study, matrix metalloproteinase 2 (MMP-2) and soluble B7-H3 (sB7-H3) were found to be correlatively up-regulated in the sera of osteoporosis patients. Furthermore, our results showed that MG63 cells treated with MMP-2 inhibitors produced lower amounts of sB7-H3 while cells with recombinant MMP-2 had an increased membrane B7-H3 (mB7-H3) shedding. Therefore, elevated MMP-2 levels resulted in an elevation of serum sB7-H3 and reduction of osteoblastic mB7-H3. B7-H3 knockdown in MG63 cells significantly decreased osteoblastic markers and substantially decreased the number of mineralized nodules after 21days. Thus, B7-H3-deficient MG63 cells exhibited impaired bone formation. These results suggest that mB7-H3 is required for the later phases of osteoblast differentiation and that MMP-2/B7-H3 plays a negative regulatory role in osteoporosis.
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Affiliation(s)
- Ping Feng
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu Province, China
| | - Hong Zhang
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu Province, China
| | - Zhuqiu Zhang
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu Province, China
| | - Xiaoli Dai
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu Province, China
| | - Ting Mao
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu Province, China
| | - Yinyin Fan
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu Province, China
| | - Xiaofang Xie
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu Province, China
| | - Huiyan Wen
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu Province, China
| | - Peijuan Yu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu Province, China
| | - Yae Hu
- Department of Pathophysiology, Medical School of Nantong University, Nantong 226001, Jiangsu Province, China.
| | - Ruhong Yan
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu Province, China.
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168
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Xiang L, Xiao L, Gou Z, Li M, Zhang W, Wang H, Feng P. Survey of Attitudes and Ethical Concerns Related to Gene Therapy Among Medical Students and Postgraduates in China. Hum Gene Ther 2015; 26:841-9. [PMID: 26414282 DOI: 10.1089/hum.2015.113] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Gene therapy is becoming an important treatment modality for gravely ill patients, and today's medical students and postgraduates are both potential consumers and future providers of gene therapy. Therefore, their attitudes and concerns about gene therapy may directly influence its long-term development and implementation in the clinic. We performed a cross-sectional survey of medical students and postgraduates at West China Medical School of Sichuan University. A custom-designed questionnaire was distributed to 600 students, and 579 were valid (96.98% response). Most respondents (84.46%) indicated little prior knowledge about gene therapy. The proportion of respondents considering gene therapy as acceptable ranged from 63.73% for serious illness to 17.72% for genetic enhancement. Adverse side effects were the most frequent concern among respondents when asked to imagine that they would receive gene therapy to treat a severe brain-related illness. These results suggest that medical students in China consider gene therapy's acceptability to be rather low, and are most concerned about its adverse side effects.
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Affiliation(s)
- Liangcheng Xiang
- 1 West China School of Public Health, Sichuan University , Chengdu, Sichuan, People's Republic of China
| | - Lihong Xiao
- 1 West China School of Public Health, Sichuan University , Chengdu, Sichuan, People's Republic of China
| | - Zhongping Gou
- 2 Institute of Clinical Trials, West China Hospital, Sichuan University , Chengdu, Sichuan, People's Republic of China
| | - Mei Li
- 2 Institute of Clinical Trials, West China Hospital, Sichuan University , Chengdu, Sichuan, People's Republic of China
| | - Wei Zhang
- 1 West China School of Public Health, Sichuan University , Chengdu, Sichuan, People's Republic of China
| | - Haiping Wang
- 1 West China School of Public Health, Sichuan University , Chengdu, Sichuan, People's Republic of China
| | - Ping Feng
- 2 Institute of Clinical Trials, West China Hospital, Sichuan University , Chengdu, Sichuan, People's Republic of China
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169
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Liu YH, Zhu LQ, Feng P, Shi Y, Wan Q. Freestanding Artificial Synapses Based on Laterally Proton-Coupled Transistors on Chitosan Membranes. Adv Mater 2015; 27:5599-5604. [PMID: 26426725 DOI: 10.1002/adma.201502719] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Revised: 07/02/2015] [Indexed: 05/28/2023]
Abstract
Freestanding synaptic transistors are fabricated on solution-processed chitosan membranes. A short-term memory to long-term memory transition is observed due to proton-related electrochemical doping under repeated pulse stimulus. Moreover, freestanding artificial synaptic devices with multiple presynaptic inputs are investigated, and spiking logic operation and logic modulation are realized.
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Affiliation(s)
- Yang Hui Liu
- School of Electronic Science and Engineering, Nanjing University, Nanjing, 210093, P. R. China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, P. R. China
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
| | - Li Qiang Zhu
- School of Electronic Science and Engineering, Nanjing University, Nanjing, 210093, P. R. China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, P. R. China
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
| | - Ping Feng
- School of Electronic Science and Engineering, Nanjing University, Nanjing, 210093, P. R. China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, P. R. China
| | - Yi Shi
- School of Electronic Science and Engineering, Nanjing University, Nanjing, 210093, P. R. China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, P. R. China
| | - Qing Wan
- School of Electronic Science and Engineering, Nanjing University, Nanjing, 210093, P. R. China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, P. R. China
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170
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Affiliation(s)
- Chaofei Huo
- State Key Laboratory of Multi-phase Complex Systems; Institute of Process Engineering, Chinese Academy of Sciences; Beijing 100190 P. R. China
- University of Chinese Academy of Sciences; Beijing 100049 P. R. China
| | - Chuigang Fan
- State Key Laboratory of Multi-phase Complex Systems; Institute of Process Engineering, Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Ping Feng
- State Key Laboratory of Multi-phase Complex Systems; Institute of Process Engineering, Chinese Academy of Sciences; Beijing 100190 P. R. China
- University of Chinese Academy of Sciences; Beijing 100049 P. R. China
| | - Weigang Lin
- State Key Laboratory of Multi-phase Complex Systems; Institute of Process Engineering, Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Wenli Song
- State Key Laboratory of Multi-phase Complex Systems; Institute of Process Engineering, Chinese Academy of Sciences; Beijing 100190 P. R. China
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171
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Chen LY, Wang J, Wang WY, Tang H, Feng P. [Correlation Between Serological Indices and Liver Histological Pathology in Patients with HBV Infection]. Sichuan Da Xue Xue Bao Yi Xue Ban 2015; 46:641-644. [PMID: 26480673] [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: 06/05/2023]
Abstract
OBJECTIVE To analyze the correlation between serological indices and liver histological pathology in the patients with hepatitis B virus ( HBV) infection. METHODS This study enrolled 301 patients with HBV infection. All of them received liver biopsy, serum biochemical examination, including alanineamino transferase (ALT), aspart ateaminotransferase (AST), albumin (ALB), globulin (GLB ), HBV DNA test and HBV genotype detection. RESULTS ALT, AST and AST/ALT in G2/G(3+4) group were significantly higher than those in group G0/G1 (P < 0.05), and all showed positive correlation with liver inflammation (r = 0.487, 0.648, 0.509, P < 0.05). GLB in S2/S(3+4) group was significantly higher than that in group S0/S1 (P < 0.05), which had positive correlation with liver fibrosis (r = 0.674, P < 0.05). ALB/GLB (A/G) in S2/S(3+4) group was significantly lower than that in group S0/S1 (P < 0.05), it had negative correlation with liver fibrosis(r = -0.500, P < 0.05). The inflammation and fibrosis level in patients with C genotype was higher than that of B genotype (χ2 = 11.460, 12.729, P < 0.05). CONCLUSION ALT, AST and AST/ALT show better diagnostic value in liver inflammation. GLB and A/G show better diagnostic value in liver fibrosis. The progress of this disease is relatively faster in the patients with C genotype HBV infection.
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172
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He C, Mao T, Feng Y, Song T, Qin C, Yan R, Feng P. Anti-CII antibody as a novel indicator to assess disease activity in systemic lupus erythematosus. Lupus 2015; 24:1370-6. [PMID: 26048288 DOI: 10.1177/0961203315588970] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2014] [Accepted: 05/06/2015] [Indexed: 11/16/2022]
Abstract
Systemic lupus erythematosus (SLE) is a chronic autoimmune disorder that affects a variety of organ systems. Anti-dsDNA Abs and complement factors have been used as indicators of lupus activity for more than 50 years. A novel indicator of activation in SLE is reported in this paper. Anti-collagen type II (CII) Ab was obviously elevated in patients with SLE compared to those patients with ankylosing spondylitis (AS) and healthy controls (HCs). Anti-CII-Ab-positive patients with SLE showed significantly higher levels of serum IgG and higher titers of ANA but lower levels of C3 and C4 than controls. A positive correlation was demonstrated between anti-CII Ab and serum IgG in SLE patients (r = 0.50, p < 0.0001). The negative correlations of anti-CII Ab with C3 and C4 were observed in SLE patients (r = -0.36, p = 0.0013; r = -0.37, p = 0.0006, respectively). The reduced anti-CII Ab level was accompanied by decreased level of serum IgG and increased levels of C3 and C4 after regular treatment. Therefore, anti-CII Ab could be a novel indicator for monitoring activity of SLE.
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Affiliation(s)
- C He
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - T Mao
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Y Feng
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - T Song
- Department of Clinical Nutrition, 302 Hospital of PLA, Beijing, China
| | - C Qin
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - R Yan
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - P Feng
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou, China
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173
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Jones ACL, Goldman HJ, Zhai Q, Feng P, Tom HWK, Mills AP. Monoenergetic positronium emission from metal-organic framework crystals. Phys Rev Lett 2015; 114:153201. [PMID: 25933312 DOI: 10.1103/physrevlett.114.153201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Indexed: 06/04/2023]
Abstract
Recently it has been discovered that positronium (Ps), after forming in metal-organic framework (MOF) crystals, is emitted into vacuum with a high efficiency and low energy that can only be explained by its propagating as delocalized Bloch states. We show that the Ps atoms are emitted from MOFs in a series of narrow energy peaks consistent with Ps at Bloch-state energy minima being emitted adiabatically into the vacuum. This implies that the Ps emission energy spectra can be directly compared with calculations to obtain detailed information about the Ps band structure in the MOF crystal. The narrow energy width of the lowest energy Ps peak from one MOF sample (2-Methylimidazole zinc salt ZIF-8) suggests it originates from a polaronic Ps surface state. Other peaks can be assigned to Ps with an effective mass of about twice that of bare Ps. Given the immense catalog of available MOF crystals, it should be possible to tune the Ps properties to make vastly improved sources with high production efficiency and a narrow energy spread, for use in fundamental physics experiments.
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Affiliation(s)
- A C L Jones
- Department of Physics and Astronomy, University of California, Riverside, California 92521, USA
| | - H J Goldman
- Department of Physics and Astronomy, University of California, Riverside, California 92521, USA
| | - Q Zhai
- Materials Science and Engineering Program and Department of Chemistry, University of California, Riverside, California 92521, USA
| | - P Feng
- Materials Science and Engineering Program and Department of Chemistry, University of California, Riverside, California 92521, USA
| | - H W K Tom
- Department of Physics and Astronomy, University of California, Riverside, California 92521, USA
| | - A P Mills
- Department of Physics and Astronomy, University of California, Riverside, California 92521, USA
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174
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Venkatesh TV, Cook K, Liu B, Perez T, Willse A, Tichich R, Feng P, Harrigan GG. Compositional differences between near-isogenic GM and conventional maize hybrids are associated with backcrossing practices in conventional breeding. Plant Biotechnol J 2015; 13:200-10. [PMID: 25196222 DOI: 10.1111/pbi.12248] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 07/14/2014] [Accepted: 07/29/2014] [Indexed: 05/03/2023]
Abstract
Here, we show that differences between genetically modified (GM) and non-GM comparators cannot be attributed unequivocally to the GM trait, but arise because of minor genomic differences in near-isogenic lines. Specifically, this study contrasted the effect of three GM traits (drought tolerance, MON 87460; herbicide resistance, NK603; insect protection, MON 89034) on maize grain composition relative to the effects of residual genetic variation from backcrossing. Important features of the study included (i) marker-assisted backcrossing to generate genetically similar inbred variants for each GM line, (ii) high-resolution genotyping to evaluate the genetic similarity of GM lines to the corresponding recurrent parents and (iii) introgression of the different GM traits separately into a wide range of genetically distinct conventional inbred lines. The F1 hybrids of all lines were grown concurrently at three replicated field sites in the United States during the 2012 growing season, and harvested grain was subjected to compositional analysis. Proximates (protein, starch and oil), amino acids, fatty acids, tocopherols and minerals were measured. The number of statistically significant differences (α = 0.05), as well as magnitudes of difference, in mean levels of these components between corresponding GM variants was essentially identical to that between GM and non-GM controls. The largest sources of compositional variation were the genetic background of the different conventional inbred lines (males and females) used to generate the maize hybrids and location. The lack of any compositional effect attributable to GM suggests the development of modern agricultural biotechnology has been accompanied by a lack of any safety or nutritional concerns.
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175
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Qu J, Zong Z, Wang X, Zhou G, Feng P, Chen M, Wang B, Yang C, Yin W, Jin X, Kang Y, Lü X. Severe infections as the leading complication after the Lushan earthquake. Intensive Care Med 2015; 41:560-1. [PMID: 25619486 DOI: 10.1007/s00134-015-3644-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/05/2015] [Indexed: 02/05/2023]
Affiliation(s)
- Junyan Qu
- Center of Infectious Disease, West China Hospital, Sichuan University, 37 Guoxue Lane, Chengdu, 610041, China
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Sheng C, Zhao Y, Duan C, Zhang B, Feng P, Lv K, Yuan W, Zhang P, Zhou C. Establishment and Evaluation of a Dynamic Pressure Measuring and Analysis System for the Air Dense Medium Fluidized Bed. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.proeng.2015.01.290] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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177
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Yu XT, Wang PY, Shi ZM, Dong K, Feng P, Wang HX, Wang XJ. Up-regulation of urotensin II and its receptor contributes to human hepatocellular carcinoma growth via activation of the PKC, ERK1/2, and p38 MAPK signaling pathways. Molecules 2014; 19:20768-79. [PMID: 25514221 PMCID: PMC6271171 DOI: 10.3390/molecules191220768] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 11/27/2014] [Accepted: 12/05/2014] [Indexed: 12/19/2022] Open
Abstract
Urotensin II (UII) and its receptor (UTR) have mitogenic effects on tumor growth. Our previous study demonstrated that the UII/UTR system is up-regulated in dithyinitrosamine-induced precancerous rat liver lesions. However, its role in human hepatocellular carcinoma remains unknown. In this study, the mRNA and protein expression of UII and its receptor (UTR) in human hepatocellular carcinoma samples and in the BEL-7402 human hepatoma cell line were evaluated. In addition, the effect of exogenous UII on the pathways that regulate proliferation in BEL-7402 cells in vitro were determined. Liver sections were subjected to immunohistochemical staining. mRNA expression was detected by real-time polymerase chain reaction analysis, and protein levels were evaluated by western blotting. Proliferating cells were detected by BrdU incorporation. The expression of UII/UT mRNA and protein significantly increased in human hepatocellular carcinoma samples, and in BEL-7402 cells. Administration with UII increased the phosphorylation of protein kinase C (PKC), extracellular signal-regulated kinase (ERK1/2) and p38 mitogen-activated protein kinases (p38 MAPK). Furthermore, GF109203x, PD184352, and SB203580 partially abolished UII-induced proliferation of BEL-7402 cells. These results provide the first evidence that up-regulation of the UII/UT system may enhance proliferation of the human hepatoma cell line at least in part via PKC, ERK1/2, and p38 MAPK signaling pathways, and may provide novel therapeutic targets for inhibiting human hepatocellular carcinoma.
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Affiliation(s)
- Xiao-Tong Yu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, No.10 Xitoutiao, You An Men, Beijing 100069, China.
| | - Peng-Yan Wang
- Department of Pathology, Peking Union Medical Hospital, Beijing 100692, China.
| | - Zheng-Ming Shi
- Department of General Surgery, Beijing Jishuitan Hospital, Beijing 100031, China.
| | - Kun Dong
- Department of Pathology, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Ping Feng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, No.10 Xitoutiao, You An Men, Beijing 100069, China.
| | - Hong-Xia Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, No.10 Xitoutiao, You An Men, Beijing 100069, China.
| | - Xue-Jiang Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, No.10 Xitoutiao, You An Men, Beijing 100069, China.
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178
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Song E, Si W, Cao R, Feng P, Mönch I, Huang G, Di Z, Schmidt OG, Mei Y. Schottky contact on ultra-thin silicon nanomembranes under light illumination. Nanotechnology 2014; 25:485201. [PMID: 25380078 DOI: 10.1088/0957-4484/25/48/485201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
By repeating oxidation and subsequent wet chemical etching, we produced ultra-thin silicon nanomembranes down to 10 nm based on silicon-on-insulator structures in a controllable way. The electrical property of such silicon nanomembranes is highly influenced by their contacts with metal electrodes, in which Schottky barriers (SBs) can be tuned by light illumination due to the surface doping. Thermionic emission theory of carriers is applied to estimate the SB at the interface between metal electrodes and Si nanomembranes. Our work reveals that the Schottky contacts with Si nanomembranes can be influenced by external stimuli (like light luminescence or surface state) more heavily compared to those in the thicker ones, which implies that such ultra-thin-film devices could be of potential use in optical detectors.
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Affiliation(s)
- Enming Song
- Department of Materials Science, Fudan University, Shanghai 200433, People's Republic of China
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179
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Sun M, Wang F, Feng P. Insulin-like growth factor-1 inhibits colonic smooth muscle cell apoptosis in diabetic rats with colonic dysmotility. ACTA ACUST UNITED AC 2014; 194-195:41-8. [PMID: 25450576 DOI: 10.1016/j.regpep.2014.11.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Revised: 11/04/2014] [Accepted: 11/11/2014] [Indexed: 02/08/2023]
Abstract
Cellular apoptosis and colonic dysmotility are involved in diabetes mellitus (DM) complications. Insulin-like growth factor-1 (IGF-1) is known to affect apoptosis and proliferation. Here, we demonstrated that the treatment of 1500 ng/kg IGF-1 partly recovers the decrease of the muscle thickness, body weight and gastrointestinal transit rate in DM rats. The gastrointestinal transit rate is positively correlated with the IGF-I level, but negatively correlated with the level of colonic cellular apoptosis. The DM-induced colonic apoptosis is also attenuated by the IGF-1 stimulation. Moreover, IGF-1 inhibits the apoptosis of the isolated colonic SMCs in vitro via the activation of PI3K/Akt and ERK1/2 signaling pathways. Taken together, our data indicated that IGF-1 inhibits the DM-induced colonic SMC apoptosis and might be involved in the alleviation of colonic dysmotility in diabetic rats.
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Affiliation(s)
- Manyi Sun
- Department of Metabolic Diseases, Tianjin Medical University General Hospital, Tianjin 300052, China; Department of Gastroenterology, Tianjin Union Medicine Center, Tianjin 300121, China
| | - Feng Wang
- Department of Gastroenterology and Digestive Endoscopy, Tianjin Union Medicine Center & Tianjin People's Hospital, Tianjin 300121, China
| | - Ping Feng
- Department of Metabolic Diseases, Tianjin Medical University General Hospital, Tianjin 300052, China.
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180
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Deng BH, Kinley JS, Knapp K, Feng P, Martinez R, Weixel C, Armstrong S, Hayashi R, Longman A, Mendoza R, Gota H, Tuszewski M. Far infrared laser polarimetry and far forward scattering diagnostics for the C-2 field reversed configuration plasmas. Rev Sci Instrum 2014; 85:11D401. [PMID: 25430164 DOI: 10.1063/1.4884903] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A two-chord far infrared (FIR) laser polarimeter for high speed sub-degree Faraday rotation measurements in the C-2 field reversed configuration experiment is described. It is based on high power proprietary FIR lasers with line width of about 330 Hz. The exceptionally low intrinsic instrument phase error is characterized with figures of merit. Significant toroidal magnetic field with rich dynamics is observed. Simultaneously obtained density fluctuation spectra by far forward scattering are presented.
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Affiliation(s)
- B H Deng
- Tri Alpha Energy, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688, USA
| | - J S Kinley
- Tri Alpha Energy, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688, USA
| | - K Knapp
- Tri Alpha Energy, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688, USA
| | - P Feng
- Tri Alpha Energy, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688, USA
| | - R Martinez
- Tri Alpha Energy, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688, USA
| | - C Weixel
- Tri Alpha Energy, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688, USA
| | - S Armstrong
- Tri Alpha Energy, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688, USA
| | - R Hayashi
- Tri Alpha Energy, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688, USA
| | - A Longman
- Tri Alpha Energy, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688, USA
| | - R Mendoza
- Tri Alpha Energy, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688, USA
| | - H Gota
- Tri Alpha Energy, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688, USA
| | - M Tuszewski
- Tri Alpha Energy, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688, USA
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181
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Yu Pan C, Han P, Liu X, Yan S, Feng P, Zhou Z, Lv X, Tian H, Jin Kui Y, Su B, Shang S, Niemoeller E. Lixisenatide treatment improves glycaemic control in Asian patients with type 2 diabetes mellitus inadequately controlled on metformin with or without sulfonylurea: a randomized, double-blind, placebo-controlled, 24-week trial (GetGoal-M-Asia). Diabetes Metab Res Rev 2014; 30:726-35. [PMID: 24639432 DOI: 10.1002/dmrr.2541] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Revised: 02/05/2014] [Accepted: 02/17/2014] [Indexed: 01/21/2023]
Abstract
BACKGROUND This study assessed the efficacy and safety of the once-daily glucagon-like peptide-1 receptor agonist, lixisenatide, in Asian patients with type 2 diabetes mellitus inadequately controlled on metformin ± sulfonylurea. METHODS In this 24-week, double-blind, placebo-controlled, multinational study, patients were randomized to lixisenatide 20 µg once daily or placebo. The primary endpoint was absolute change in glycated haemoglobin (HbA1c ) from baseline to week 24. RESULTS A total of 391 patients were randomized. Lixisenatide significantly reduced HbA1c levels compared with placebo (LS mean difference: -0.36%, p = 0.0004). A significantly higher proportion of lixisenatide-treated patients achieved HbA1c targets of <7% (p = 0.003) and ≤6.5% (p = 0.001) versus placebo. Lixisenatide was associated with a statistically significant reduction in 2-h postprandial plasma glucose after a standardized breakfast versus placebo (LS mean difference: -4.28 mmol/L, p < 0.0001) and a significant reduction in fasting plasma glucose (p = 0.0109). There was no difference in weight loss versus placebo, with a modest reduction in body weight reported for both groups (lixisenatide: -1.50 kg, placebo: -1.24 kg; p = 0.296). The incidence of treatment-emergent adverse events (TEAEs) was 64.3% with lixisenatide versus 47.4% with placebo, with serious TEAEs reported in 1.5% versus 2.1% of patients, respectively. The most common TEAE in the lixisenatide group was nausea (16.3% vs 2.6% with placebo). The incidence of symptomatic hypoglycaemia was 5.6% with lixisenatide treatment and 2.6% with placebo (p = 0.1321), with no severe symptomatic hypoglycaemia events reported. CONCLUSIONS In Asian patients with type 2 diabetes mellitus insufficiently controlled on metformin ± sulfonylurea, lixisenatide significantly improved glycaemic control and was well tolerated during the 24-week study.
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Affiliation(s)
- Chang Yu Pan
- Chinese People's Liberation Army General Hospital, Beijing, China
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182
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Feng P, Shao F, Shi Y, Wan Q. Gas sensors based on semiconducting nanowire field-effect transistors. Sensors (Basel) 2014; 14:17406-29. [PMID: 25232915 PMCID: PMC4208231 DOI: 10.3390/s140917406] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Revised: 07/23/2014] [Accepted: 07/28/2014] [Indexed: 01/10/2023]
Abstract
One-dimensional semiconductor nanostructures are unique sensing materials for the fabrication of gas sensors. In this article, gas sensors based on semiconducting nanowire field-effect transistors (FETs) are comprehensively reviewed. Individual nanowires or nanowire network films are usually used as the active detecting channels. In these sensors, a third electrode, which serves as the gate, is used to tune the carrier concentration of the nanowires to realize better sensing performance, including sensitivity, selectivity and response time, etc. The FET parameters can be modulated by the presence of the target gases and their change relate closely to the type and concentration of the gas molecules. In addition, extra controls such as metal decoration, local heating and light irradiation can be combined with the gate electrode to tune the nanowire channel and realize more effective gas sensing. With the help of micro-fabrication techniques, these sensors can be integrated into smart systems. Finally, some challenges for the future investigation and application of nanowire field-effect gas sensors are discussed.
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Affiliation(s)
- Ping Feng
- Jiangsu Provincial Key Laboratory of Photonic and Electronic Materials, School of Electronic Science & Engineering, Nanjing University, Nanjing 210093, China.
| | - Feng Shao
- Jiangsu Provincial Key Laboratory of Photonic and Electronic Materials, School of Electronic Science & Engineering, Nanjing University, Nanjing 210093, China.
| | - Yi Shi
- Jiangsu Provincial Key Laboratory of Photonic and Electronic Materials, School of Electronic Science & Engineering, Nanjing University, Nanjing 210093, China.
| | - Qing Wan
- Jiangsu Provincial Key Laboratory of Photonic and Electronic Materials, School of Electronic Science & Engineering, Nanjing University, Nanjing 210093, China.
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183
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Yan R, Yang S, Gu A, Zhan F, He C, Qin C, Zhang X, Feng P. Murine b7-h3 is a co-stimulatory molecule for T cell activation. Monoclon Antib Immunodiagn Immunother 2014; 32:395-8. [PMID: 24328742 DOI: 10.1089/mab.2013.0052] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The B7 family member B7-H3 (CD276) plays a key role during an immune response but its function remains controversial. In this study, we found that murine B7-H3 up-regulated the proliferation and cytokine production of T cells. Our study suggested that there was no interaction of murine B7-H3 with a triggering receptor expressed on myeloid cells (TREM)-like transcript 2 (TLT-2). Further studies demonstrated that mouse B7-H3 specifically bound to T cells and its receptor was not murine TLT-2. Moreover, murine B7-H3 was a positive co-stimulatory molecule in the regulation of T cell-mediated immune responses.
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Affiliation(s)
- Ruhong Yan
- 1 Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University , Suzhou, China
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184
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Feng P, Wang X, Casado PL, Küchler EC, Deeley K, Noel J, Kimm H, Kim JH, Haas AN, Quinelato V, Bonato LL, Granjeiro JM, Susin C, Vieira AR. Genome wide association scan for chronic periodontitis implicates novel locus. BMC Oral Health 2014; 14:84. [PMID: 25008200 PMCID: PMC4096424 DOI: 10.1186/1472-6831-14-84] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Accepted: 07/01/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND There is evidence for a genetic contribution to chronic periodontitis. In this study, we conducted a genome wide association study among 866 participants of the University of Pittsburgh Dental Registry and DNA Repository, whose periodontal diagnosis ranged from healthy (N = 767) to severe chronic periodontitis (N = 99). METHODS Genotypingi of over half-million single nucleotide polymorphisms was determined. Analyses were done twice, first in the complete dataset of all ethnicities, and second including only samples defined as self-reported Whites. From the top 100 results, twenty single nucleotide polymorphisms had consistent results in both analyses (borderline p-values ranging from 1E-05 to 1E-6) and were selected to be tested in two independent datasets derived from 1,460 individuals from Porto Alegre, and 359 from Rio de Janeiro, Brazil. Meta-analyses of the Single nucleotide polymorphisms showing a trend for association in the independent dataset were performed. RESULTS The rs1477403 marker located on 16q22.3 showed suggestive association in the discovery phase and in the Porto Alegre dataset (p = 0.05). The meta-analysis suggested the less common allele decreases the risk of chronic periodontitis. CONCLUSIONS Our data offer a clear hypothesis to be independently tested regarding the contribution of the 16q22.3 locus to chronic periodontitis.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Alexandre R Vieira
- Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, 3501 Terrace Street, Pittsburgh, PA 15261, USA.
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185
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Zhu L, Zhang X, Chang L, Wang A, Feng P, Han L. Molecular cloning, prokaryotic expression and promoter analysis of squalene synthase gene from Schizochytrium Limacinum. APPL BIOCHEM MICRO+ 2014. [DOI: 10.1134/s0003683814040140] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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186
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Li W, Feng P, Zou Y, Hai B. Synthesis and cationic photopolymerization of fluorine-containing vinyl ether monomers for the hydrophobic films. J Appl Polym Sci 2014. [DOI: 10.1002/app.41019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Wei Li
- Department of Applied Chemistry, College of Chemistry; Beijing Normal University; Beijing 100875 China
| | - Ping Feng
- Department of Applied Chemistry, College of Chemistry; Beijing Normal University; Beijing 100875 China
| | - Yingquan Zou
- Department of Applied Chemistry, College of Chemistry; Beijing Normal University; Beijing 100875 China
| | - Bo Hai
- Department of Applied Chemistry, College of Chemistry; Beijing Normal University; Beijing 100875 China
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187
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Abstract
Matriptase-2 is a hepatic membrane serine protease that regulates iron homeostasis. Defects in matriptase-2 cause iron deficiency anemia. In cells, matriptase-2 is synthesized as a zymogen. To date, how matriptase-2 expression and activation are regulated remains poorly understood. Here we expressed human matriptase-2 in HEK293 and hepatic BEL-7402, SMMC-7721, and QGY-7703 cells. By labeling cell surface proteins and Western analysis, we examined matriptase-2 cell surface expression, zymogen activation, and ectodomain shedding. Our results show that matriptase-2 was activated on the cell surface but not intracellularly. Activated matriptase-2 underwent ectodomain shedding, producing soluble fragments in the conditioned medium. By testing inactive mutants, R576A and S762A, we found that matriptase-2 activation and shedding were mediated by its own catalytic activity and that the one-chain form of matriptase-2 had little activity in ectodomain shedding. We made additional matriptase-2 mutants, N136Q, N184Q, N216Q, N338Q, N433Q, N453Q, and N518Q, in which each of the predicted N-glycosylation sites was mutated. All of these mutants were expressed on the cell surface. However, mutants N216Q, N453Q, and N518Q, but not the other mutants, had impaired zymogen activation and ectodomain shedding. Our results indicate that N-glycans at specific sites are critical for matriptase-2 activation. Together, these data provide new insights into the cell surface expression, zymogen activation, and ectodomain shedding of matriptase-2.
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Affiliation(s)
- Jiang Jiang
- From the Cyrus Tang Hematology Center and Ministry of Education Engineering Center of Hematological Disease, the Department of Clinic Laboratories, the Second Affiliated Hospital
| | - Jianfeng Yang
- From the Cyrus Tang Hematology Center and Ministry of Education Engineering Center of Hematological Disease
| | - Ping Feng
- the Department of Clinic Laboratories, the Second Affiliated Hospital
| | - Bin Zuo
- From the Cyrus Tang Hematology Center and Ministry of Education Engineering Center of Hematological Disease
| | - Ningzheng Dong
- From the Cyrus Tang Hematology Center and Ministry of Education Engineering Center of Hematological Disease, the Ministry of Health Key Laboratory of Thrombosis and Hemostasis, Jiangsu Institute of Hematology, the First Affiliated Hospital, and the Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China and
| | - Qingyu Wu
- From the Cyrus Tang Hematology Center and Ministry of Education Engineering Center of Hematological Disease, the Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China and the Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195
| | - Yang He
- From the Cyrus Tang Hematology Center and Ministry of Education Engineering Center of Hematological Disease, the Ministry of Health Key Laboratory of Thrombosis and Hemostasis, Jiangsu Institute of Hematology, the First Affiliated Hospital, and the Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215006, China and
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188
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Abstract
Taste receptor genes are functionally important in animals, with a surprising exception in the bottlenose dolphin, which shows extensive losses of sweet, umami, and bitter taste receptor genes. To examine the generality of taste gene loss, we examined seven toothed whales and five baleen whales and sequenced the complete repertoire of three sweet/umami (T1Rs) and ten bitter (T2Rs) taste receptor genes. We found all amplified T1Rs and T2Rs to be pseudogenes in all 12 whales, with a shared premature stop codon in 10 of the 13 genes, which demonstrated massive losses of taste receptor genes in the common ancestor of whales. Furthermore, we analyzed three genome sequences from two toothed whales and one baleen whale and found that the sour taste marker gene Pkd2l1 is a pseudogene, whereas the candidate salty taste receptor genes are intact and putatively functional. Additionally, we examined three genes that are responsible for taste signal transduction and found the relaxation of functional constraints on taste signaling pathways along the ancestral branch leading to whales. Together, our results strongly suggest extensive losses of sweet, umami, bitter, and sour tastes in whales, and the relaxation of taste function most likely arose in the common ancestor of whales between 36 and 53 Ma. Therefore, whales represent the first animal group to lack four of five primary tastes, probably driven by the marine environment with high concentration of sodium, the feeding behavior of swallowing prey whole, and the dietary switch from plants to meat in the whale ancestor.
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Affiliation(s)
- Ping Feng
- Department of Zoology, College of Life Sciences, Wuhan University, China
| | - Jinsong Zheng
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Stephen J Rossiter
- School of Biological and Chemical Sciences, Queen Mary, University of London, United Kingdom
| | - Ding Wang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Huabin Zhao
- Department of Zoology, College of Life Sciences, Wuhan University, China
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189
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Küchler EC, Feng P, Deeley K, Fitzgerald CA, Meyer C, Gorbunov A, Bezamat M, Reis MF, Noel J, Kouzbari MZ, Granjeiro JM, Antunes LS, Antunes LA, de Abreu FV, Costa MC, Tannure PN, Seymen F, Koruyucu M, Patir A, Vieira AR. Fine mapping of locus Xq25.1-27-2 for a low caries experience phenotype. Arch Oral Biol 2014; 59:479-86. [PMID: 24632093 DOI: 10.1016/j.archoralbio.2014.02.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Revised: 01/17/2014] [Accepted: 02/15/2014] [Indexed: 10/25/2022]
Abstract
OBJECTIVE The purpose of this study was to fine map the locus Xq25.1-27-2 in order to identify genetic contributors involved in low caries experience. DESIGN Seventy-two families from the Philippines were studied. Caries experience was recorded and genomic DNA extracted from peripheral blood was obtained from all subjects. One hundred and twenty-eight polymorphisms in the locus Xq25.1-27-2, a region that contains 24 genes, were genotyped. Association between caries experience and alleles was tested using the transmission disequilibrium test (TDT). This initial analysis was followed by experiments with DNA samples from 1481 subjects from Pittsburgh, 918 children from Brazil, and 275 children from Turkey in order to follow up the results found in the Filipino families. Chi-square or Fisher's exact tests were used. Sequencing of the coding regions and exon-intron boundaries of MST4 and FGF13 were also performed on 91 women from Pittsburgh. RESULTS Statistically significant association with low caries experience was found for 11 markers in Xq25.1-27-2 in the Filipino families. One marker was in MST4, another marker was in FGF13, and the remaining markers were in intergenic regions. Haplotype analysis also confirmed these results, but the follow up studies with DNA samples from Pittsburgh, Brazil, and Turkey showed associations for a subset of the 11 markers. No coding mutations were identified by sequencing. CONCLUSIONS Our study failed to conclusively demonstrate that genetic factors in Xq25.1-27-2 contribute to caries experience in multiple populations.
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Affiliation(s)
- Erika C Küchler
- Department of Oral Biology, University of Pittsburgh, Pittsburgh, PA, USA.
| | - Ping Feng
- Guiyang Stomatological Hospital, Guiyang, Guizhou, China.
| | - Kathleen Deeley
- Department of Oral Biology, University of Pittsburgh, Pittsburgh, PA, USA.
| | - Carly A Fitzgerald
- Department of Oral Biology, University of Pittsburgh, Pittsburgh, PA, USA.
| | - Chelsea Meyer
- Department of Oral Biology, University of Pittsburgh, Pittsburgh, PA, USA.
| | - Anastasia Gorbunov
- Department of Oral Biology, University of Pittsburgh, Pittsburgh, PA, USA.
| | - Mariana Bezamat
- Department of Oral Biology, University of Pittsburgh, Pittsburgh, PA, USA.
| | - Maria Fernanda Reis
- Department of Oral Biology, University of Pittsburgh, Pittsburgh, PA, USA; Clinical Research Unit, Fluminense Federal University, Niterói, RJ, Brazil.
| | - Jacqueline Noel
- Department of Oral Biology, University of Pittsburgh, Pittsburgh, PA, USA.
| | - M Zahir Kouzbari
- Department of Oral Biology, University of Pittsburgh, Pittsburgh, PA, USA.
| | - José M Granjeiro
- Clinical Research Unit, Fluminense Federal University, Niterói, RJ, Brazil; Directory of Programs, National Institute of Metrology, Quality and Technology (INMETRO), Duque de Caxias, RJ, Brazil.
| | - Leonardo S Antunes
- Clinical Research Unit, Fluminense Federal University, Niterói, RJ, Brazil; Pediatric Clinics, School of Dentistry, Fluminense Federal University, Nova Friburgo, RJ, Brazil.
| | - Livia A Antunes
- Pediatric Clinics, School of Dentistry, Fluminense Federal University, Nova Friburgo, RJ, Brazil.
| | - Fernanda Volpe de Abreu
- Pediatric Clinics, School of Dentistry, Fluminense Federal University, Nova Friburgo, RJ, Brazil.
| | - Marcelo C Costa
- Department of Pediatric Dentistry and Orthodontics, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
| | - Patricia N Tannure
- Veiga de Almeida University, Rio de Janeiro, RJ, Brazil; Discipline of Cariology, School of Dentistry, Salgado de Oliveira University, Niterói, RJ, Brazil.
| | - Figen Seymen
- Department of Pedodontics, Istanbul University, Istanbul, Turkey.
| | - Mine Koruyucu
- Department of Pedodontics, Istanbul University, Istanbul, Turkey.
| | - Asli Patir
- Department of Pedodontics, Medipol Istanbul University, Istanbul, Turkey.
| | - Alexandre R Vieira
- Department of Oral Biology, University of Pittsburgh, Pittsburgh, PA, USA; Center for Craniofacial and Dental Genetics, and Clinical and Translational Science Institute, University of Pittsburgh, Pittsburgh, PA, USA; Department of Pediatric Dentistry, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
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190
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Sun J, Li X, Feng P, Zhang J, Xie Z, Song E, Xi L. RNAi-mediated silencing of fungal acuD gene attenuates the virulence of Penicillium marneffei. Med Mycol 2014; 52:167-78. [DOI: 10.1093/mmy/myt006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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191
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Affiliation(s)
- Ping Feng
- College of Chemistry; Beijing Normal University; Beijing 100875 China
| | - Wei Li
- College of Chemistry; Beijing Normal University; Beijing 100875 China
| | - Yingquan Zou
- College of Chemistry; Beijing Normal University; Beijing 100875 China
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192
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Li J, Zhang Y, Wang J, Feng P, Chen R, Cao Y, Liu C. [Association between serum lipoprotein lipase level and dyslipidemia in patients with obstructive sleep apnea syndrome]. Zhonghua Yi Xue Za Zhi 2014; 94:403-407. [PMID: 24754980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVE To explore the association between serum lipoprotein lipase (LPL) level and dyslipidemia in patients with obstructive sleep apnea syndromes (OSAS). METHODS Overnight polysomnography (PSG) was performed for 158 patients with snoring at our Sleep Center from June 2011 to April 2013. Based on the results of apnea-hypopnea index (AHI) assessment, they were divided into 4 groups: primary snoring (AHI<5/h, n = 26), mild (5/h ≤ AHI ≤ 15/h, n = 23), moderate (15/h < AHI ≤ 30/h, n = 31) and severe (AHI>30/h, n = 78) OSAS. According to body mass index (BMI), primary snoring group was further divided into normal BMI and overweight (obese) groups. The level of LPL was determined by enzyme-linked immunosorbent assay (ELISA) and the correlations were observed with OSAS, blood total cholesterol (TC), triglyceride (TG), high density lipoprotein (HDL), low density lipoprotein (LDL) and very low density lipoprotein (VLDL).In normal weight OSAS patients, the relationship was analyzed between different conditions, plasma lipid and serum LPL.In 49 OSAS groups, the level of LPL was observed after 6-month continuous positive airflow pressure (CPAP). RESULTS From a comparison of four groups, it was found that AHI, night blood lowest oxygen saturation (L-SaO2) and time ratio of lowest SaO2<90% (TS90%) had statistical significance (all P < 0.01). The serum LPL gradually decreased in four groups. Compared with primary snoring group, there was a significant increase of serum LPL level in severe OSAS group ((37 ± 15) vs (45 ± 17) µg/L, P = 0.022). And severe OSAS group had significantly higher serum levels of TC, TG and LDL (P = 0.025,0.001,0.049).HDL of OSAS group was significantly lower than that of primary snoring group (all P < 0.05). Additionally, after adjustment for BMI and age, serum LPL levels showed significant negative correlations with TC and LDL (r = 0.221,0.199) .Serum LPL level was negative correlated with AHI and TS90 % and oxygen decrease index (ODI) (r = 0.231,0.228,0.184). Compared with normal BMI patients, there was a significant increase of VLDL ((0.77 ± 0.30) vs (0.46 ± 0.23) mmol/L, P = 0.034) and decrease of LPL ((37 ± 10) vs (523 ± 23) µg/L, P = 0.047) in weight (obesity) in primary snoring group. Compared with primary snoring group in normal BMI groups, there was a significant increase of TG,VLDL and decrease of LPL, HDL in OSAS group (all P < 0.05). The level of LPL significantly increased after 6-month CPAP ((60 ± 6) vs (38 ± 3) µg/L, P = 0.001). CONCLUSIONS Serum LPL and plasma lipid decrease in OSAS patients. And serum LPL level is correlated significantly with the severity of OSAS and nocturnal hypoxia. Thus LPL may play some roles in dyslipidemia of OSAS patients.
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Affiliation(s)
- Jie Li
- Department of Neurology, Second Affiliated Hospital, Soochow University, Suzhou 215004, China
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Liu Y, Jin C, Xing A, Liu X, Chen S, Li D, Feng P, Liu J, Li Z, Wu S. Serum uric acid levels and the risk of impaired fasting glucose: a prospective study in adults of north China. PLoS One 2013; 8:e84712. [PMID: 24376838 PMCID: PMC3871632 DOI: 10.1371/journal.pone.0084712] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Accepted: 11/18/2013] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE To prospectively investigate the association between serum uric acid (SUA) level and incidence of impaired fasting glucose (IFG) in adult Chinese. METHODS We evaluated 13,328 women and 41,350 men without diabetes and IFG. The participants were classified into quintile according to baseline level of SUA. Data were analyzed to examine the association between SUA levels and the incidence of IFG. We used Cox regression models to estimate the relative risk of IFG after adjusting for known risk factors. RESULTS For men, the second quintile of SUA has the lowest cumulative incidence of IFG (29.9%); the fifth quintile of SUA has the highest cumulative incidence of IFG (35.6%). After corrected with Cox regression, the first quartile and the fourth quartile have higher cumulative incidence of IFG than the second quintile, with the HR of 1.11(1.05-1.17) and 1.07(1.01-1.13), respectively. For women, the first quartile of SUA has the lowest cumulative incidence of IFG (20.7%), while the fifth quintile of SUA has the highest cumulative incidence of IFG (30.0%). However, there is no significant difference in IFG between different quintile after adjusted with Cox regression. CONCLUSIONS The results of this prospective study suggest that there is a higher risk of developing IFG in association with low or high SUA concentrations for men. These relationships were independent of other known risk factors. There is no significant correlation in the risk of developing IFG in association with SUA concentrations for women. Analyses excluding participants with hypertension or with hyperlipidemia and analyses with participants stratified by age reached similar conclusion.
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Affiliation(s)
- Yeqiang Liu
- The General Hospital of Tianjin Medical University, Tianjin, China
- The Kailuan Hospital, Hebei United University, Tangshan, China
| | - Cheng Jin
- The Kailuan Hospital, Hebei United University, Tangshan, China
| | - Aijun Xing
- The Kailuan Hospital, Hebei United University, Tangshan, China
| | - Xiurong Liu
- The Kailuan Hospital, Hebei United University, Tangshan, China
| | - Shuohua Chen
- The Kailuan Hospital, Hebei United University, Tangshan, China
| | - Dongqing Li
- The Kailuan Hospital, Hebei United University, Tangshan, China
| | - Ping Feng
- The General Hospital of Tianjin Medical University, Tianjin, China
| | - Jinquan Liu
- The General Hospital of Tianjin Medical University, Tianjin, China
| | - Zhiguo Li
- The Hebei United University, Tangshan, China
| | - Shouling Wu
- The Kailuan Hospital, Hebei United University, Tangshan, China
- * E-mail:
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Zhang LJ, Cao J, Feng P, Huang J, Lu J, Lu XY, Xia ZF. Influencing factors of the quality of life in Chinese burn patients: Investigation with adapted Chinese version of the BSHS-B. Burns 2013; 40:731-6. [PMID: 24280529 DOI: 10.1016/j.burns.2013.09.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [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: 05/02/2013] [Revised: 09/01/2013] [Accepted: 09/22/2013] [Indexed: 10/26/2022]
Abstract
OBJECTIVE The study aims to evaluate the quality of life (QOL) in burn patients in China and find out principal influencing factors, so as to provide evidence for interventions. METHODS A total of 271 burn patients in three major burn units in China were asked to fill in the adapted Chinese version (ACV) of the Burn Specific Health Scale-Brief (ACV BSHS-B) in order to seek out the principal influencing factors in combination with a self-designed demographic and disease condition questionnaire. Multivariable linear regression was used to analyse the principal influencing factors. RESULTS The findings showed that there were seven principal influencing factors for the overall ACV BSHS-B score. They were: percent total body surface area (TBSA) burned (with the standardised regression coefficient being -0.594), burn area of lower limber (0.241), itch level (-0.227), pain level (-0.220), gender (0.217), mechanical ventilation (0.216) and hand deformity (-0.141). CONCLUSION QOL decreased in burn patients to different degrees depending on the intensity of burns. With a better understanding of influencing factors of burn patients' QOL, the medical and nursing staff can take specific countermeasures to help patients gain a higher QOL.
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Affiliation(s)
- Ling-Juan Zhang
- Nursing Department, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Jie Cao
- Anesthesiology Department, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Ping Feng
- Burn Center, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Juan Huang
- Nursing Department, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Jian Lu
- Department of Medical Statistics, Second Military Medical University, Shanghai 200433, China
| | - Xiao-Ying Lu
- Nursing Department, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Zhao-Fan Xia
- Burn Center, Changhai Hospital, Second Military Medical University, Shanghai 200433, China.
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Feng P, Yang G, Lu X. Development of twenty microsatellite loci from the Tibetan ground tit (Parus humilis). J Genet 2013; 92:e68-e72. [PMID: 23981934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Affiliation(s)
- Ping Feng
- Department of Zoology, College of Life Sciences, Wuhan University, Wuhan 430072, People's Republic of China.
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Feng P, Baugh S. Determination of whey protein content in bovine milk-based infant formula finished products using amino acids calculation method: AOAC First Action 2012.08. J AOAC Int 2013; 96:795-7. [PMID: 24000754 DOI: 10.5740/jaoacint.13-076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A method for the calculation of the whey protein fraction was developed for milk-based infant formula products based upon amino acid ratio calculated from asparaginelaspartic acid, alanine, proline, and phenylalanine amino acid data. Historical and literature amino acid data were combined to establish the reference amino acid values used in the validation study. This method has been evaluated for accuracy versus label claim for 12 products, with results from 90 to 107.5% of label claim and an overall average of 98.7%. Repeatability and intermediate precision were determined over 4 different days. Repeatability results were 4.75, 2.06, 4.18, and 2.44% RSD, respectively, with an overall intermediate precision of 3.68% RSD. Since the amino acid profile of infant formula finished products depends on the amino acid profile of ingredients used, the applicability of the method needs to be confirmed for specific types of infant formula, for which data will be gathered. Additional reference material data are being gathered for better estimation of milk and whey reference values, which are based on being normalized to total amino acid content, during the two year AOAC INTERNATIONAL Official Methods of Analysis method approval process.
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Affiliation(s)
- Ping Feng
- Wyeth Nutrition, 3000 Horizon Dr, King of Prussia, PA 19406, USA.
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Xie W, Zhao H, Chen Y, Zhang Q, Lu W, Liu W, Hu AR, Li HW, Feng P, Chen MS, Mei CJ, Guo XL, Zhao XH, Wang JB, Fan ZQ, Gan JH, Xie Q, Cheng J. A Retrospective, Multi-Center, Post-Marketing Observational Study to Evaluate the Effectiveness of Ademetionine 1,4-Butanedisulfonate Injection (Transmetil®) Treatment in Chinese Patients with Intrahepatic Cholestasis Caused by Viral Hepatitis. Infection International 2013. [DOI: 10.1515/ii-2017-0043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Obejective Ademetionine 1,4-butanedisulfonate [S-adenosyl-L-methionine (SAMe)/Transmetil®, Abbott] has been available in China for more than 15 years, and it has been shown to reduce serum bilirubin and transaminase levels in viral hepatitis (VH) patients. However, no large-scale studies have focused on the impact of SAMe treatment regimen on reducing the serum total bilirubin (TBil) in VH patients with intrahepatic cholestasis (IHC). The primary purpose of this study was to evaluate the effectiveness of intravenous SAMe (Transmetil®) treatment in reducing the serum TBil by 50%.
Methods This retrospective, multi-center, cross-sectional medical record review involved patients aged ≥18 years. Records of 1 280 hospitalized VH patients at 16 sites diagnosed with IHC who had received intravenous SAMe 1 000 mg or 2 000 mg q.d. for at least 7 days from January 1, 2006 to June 30, 2009, were screened and 905 records were randomly selected.
Results The safety set (SS) included 834 patients and the full analysis set 826 patients. TBil levels after 14 days injection treatment were available for 763 patients. TBil decreased ≥ 50% versus baseline after 14 days treatment in 288 (37.7%) patients (95% CI 34.3%, 41.2%). Twenty-nine non-serious adverse events (non-SAEs) were reported in 19 (2.3%) patients, and 29 SAEs were reported in 10 patients (1.2%). All adverse events (AEs) were considered unrelated to the study drug.
Conclusions This retrospective study shows that intravenous SAMe administration in VH patients with IHC is associated with significant reduction of TBil levels in more than 30% of patients 14 days after treatment initiation.
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Qiu H, Fan W, Fu P, Zuo C, Feng P, Liu F, Zhou L, Chen F, Zhong H, Liang Y, Shi M. General acteoside of Rehmanniae leaves in the treatment of primary chronic glomerulonephritis: a randomized controlled trial. Afr J Tradit Complement Altern Med 2013; 10:109-15. [PMID: 24146510 DOI: 10.4314/ajtcam.v10i4.18] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The objective of the study was to investigate the effectiveness and efficacy of the randomized, parallel, and controlled trial of Traditional Chinese Medicine, general acteoside of Rehmanniae leaves, compared with piperazine ferulate in the treatment of primary chronic glomerulonephritis. Rehmanniae leaves and piperazine ferulate can reduce proteinuria and erythrocyturia effectively in the treatment of primary chronic glomerulonephritis. A total of 400 patients diagnosed with primary chronic glomerulonephritis were recruited from outpatient clinics and were randomly assigned to the treatment group (general acteoside of Rehmanniae leaves, two 200mg tablets, bid) or the control group (piperazine ferulate, four 50-mg tablets, bid ). The primary outcome was 24-h urinary protein. Secondary outcome measures included estimated glomerular filtration rate (eGFR), erythrocyturia, and electrolytes. After 8 weeks of treatment, the treatment group and the control group showed a mean reduction in 24-h proteinuria of 34.81% and 37.66%. The 95% CI of difference of the mean reduction in 24-h proteinuria between the two groups was [-11.50%, 5.80%]. No significant differences were found between the two groups in the erythrocyturia reduction. Neither group showed obvious changes between baseline and 8 weeks in eGFR or electrolytes. Adverse events occurred at a similarly low rate in the treatment group (1.5%) and control group (2.5%, P = 0.7238). Both general acteoside of Rehmanniae leaves and piperazine ferulate can reduce proteinuria and erythrocyturia effectively in the treatment of primary chronic glomerulonephritis.
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Affiliation(s)
- HongYu Qiu
- Department of Nephrology, West China Hospital, Sichuan University, Chengdu Sichuan, P. R. China
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