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Mo R, Zheng Y, Ni Z, Shen D, Liu Y. The phytochemical components of walnuts and their application for geographical origin based on chemical markers. Food Quality and Safety 2022. [DOI: 10.1093/fqsafe/fyac052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Place of origin has an important influence on walnut quality and commercial value, which results in the requirement of rapid geographical traceability method. Thus, a method for geographical origin identification of walnuts on the basis of nutritional quality of walnut from China was conducted. The concentrations of 43 phytochemical components were analyzed in walnut samples from five different walnut-producing regions of China. Based on 14 chemical markers selected by the Random Forest method from these phytochemical components, a new discriminant model for geographical origin was built, with the corresponding correct classification rate of 99.3%. In addition, the quantitative quality differences of walnuts from five regions were analyzed, with the values of 0.17-1.43. Moreover, the top three chemical markers for the geographical origin discriminant analysis were Mo, V and stearic acid, with the contribution rates of 26.8%, 18.9% and 10.9%. This study provides a potentially viable method for application in the food authentication.
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Affiliation(s)
- Runhong Mo
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry , Fuyang 311400, P. R. of China
| | - Yuewen Zheng
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry , Fuyang 311400, P. R. of China
| | - Zhanglin Ni
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry , Fuyang 311400, P. R. of China
| | - Danyu Shen
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry , Fuyang 311400, P. R. of China
| | - Yihua Liu
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry , Fuyang 311400, P. R. of China
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2
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Liu X, Cheruvu HS, Anissimov YG, van der Hoek J, Tsakalozou E, Ni Z, Ghosh P, Grice JE, Roberts MS. Percutaneous absorption of steroids from finite doses: Predicting urinary excretion from in vitro skin permeation testing. Int J Pharm 2022; 625:122095. [PMID: 35961420 DOI: 10.1016/j.ijpharm.2022.122095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 08/01/2022] [Accepted: 08/05/2022] [Indexed: 10/15/2022]
Abstract
Pharmacokinetic (PK) models are widely used to describe drug permeation across the epidermal membrane barrier, the stratum corneum (SC). Here, we extend our previously reported diffusion and compartment-in-series models to describe plasma concentrations, urinary excretion-time profiles and exposure estimates after topically applied finite doses of solvent deposited solids. In vivo models were derived by convolution of a skin absorption input function for finite dosing with that for in vivo disposition PK. In vitro skin permeation test (IVPT) and in vivo urinary excretion data for cortisone, desoxycorticosterone, and testosterone were extracted from literature for model validation and establishment of in vitro - in vivo relationships (IVIVR). Both SC diffusion and SC 3-compartment-in-series PK models adequately described experimental in vitro and in vivo permeation data, with similar model parameter estimates for SC diffusion time and bioavailability. A satisfactory IVIVR was generated for cortisone, whereas testosterone and desoxycorticosterone showed higher bioavailability in vitro compared to in vivo. In recognising that future prospective studies need to both have an adequate sampling schedule and be harmonized for robust IVIVRs, we developed expressions for predicting extent of absorption and time for peak absorption for both in vitro and in vivo studies. Other study parameters, such as application site, applied dose, and application techniques, can also affect drug permeability through skin during dosage form metamorphosis after finite dose application, and a lack of correlation may result if these are poorly matched.
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Affiliation(s)
- Xin Liu
- Therapeutics Research Centre, University of Queensland Diamantina Institute, The University of Queensland, Woolloongabba, QLD 4102, Australia
| | - Hanumanth S Cheruvu
- Therapeutics Research Centre, University of Queensland Diamantina Institute, The University of Queensland, Woolloongabba, QLD 4102, Australia
| | - Yuri G Anissimov
- School of Environment and Science, Griffith University, Parklands Drive, Southport, QLD 4222, Australia
| | - John van der Hoek
- UniSA STEM, University of South Australia, Adelaide SA5011, Australia
| | - Eleftheria Tsakalozou
- Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, MD, USA
| | - Zhanglin Ni
- Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, MD, USA
| | - Priyanka Ghosh
- Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, MD, USA
| | - Jeffrey E Grice
- Therapeutics Research Centre, University of Queensland Diamantina Institute, The University of Queensland, Woolloongabba, QLD 4102, Australia.
| | - Michael S Roberts
- Therapeutics Research Centre, University of Queensland Diamantina Institute, The University of Queensland, Woolloongabba, QLD 4102, Australia; UniSA Clinical and Health Sciences, University of South Australia and Therapeutics Research Centre, Basil Hetzel Institute for Translational Medical Research, The Queen Elizabeth Hospital, Woodville, SA 5011, Australia
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Gong Y, Feng K, Zhang P, Lee J, Pan Y, Zhang Z, Ni Z, Bai T, Yoon M, Li B, Kim C, Fang L, Zhao L. Quantitative methods and modeling to assess
COVID‐19‐interrupted
in vivo pharmacokinetic bioequivalence studies with two reference batches. CPT Pharmacometrics Syst Pharmacol 2022; 11:833-842. [PMID: 35411692 PMCID: PMC9111087 DOI: 10.1002/psp4.12795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 02/24/2022] [Accepted: 03/14/2022] [Indexed: 11/07/2022] Open
Affiliation(s)
- Yuqing Gong
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research U.S. Food and Drug Administration Silver Spring Maryland USA
| | - Kairui Feng
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research U.S. Food and Drug Administration Silver Spring Maryland USA
| | - Peijue Zhang
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research U.S. Food and Drug Administration Silver Spring Maryland USA
| | - Jieon Lee
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research U.S. Food and Drug Administration Silver Spring Maryland USA
| | - Yuzhuo Pan
- Office of Bioequivalence, Office of Generic Drugs, Center for Drug Evaluation and Research U.S. Food and Drug Administration Silver Spring Maryland USA
| | - Zhen Zhang
- Office of Bioequivalence, Office of Generic Drugs, Center for Drug Evaluation and Research U.S. Food and Drug Administration Silver Spring Maryland USA
| | - Zhanglin Ni
- Office of Bioequivalence, Office of Generic Drugs, Center for Drug Evaluation and Research U.S. Food and Drug Administration Silver Spring Maryland USA
| | - Tao Bai
- Office of Bioequivalence, Office of Generic Drugs, Center for Drug Evaluation and Research U.S. Food and Drug Administration Silver Spring Maryland USA
| | - Miyoung Yoon
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research U.S. Food and Drug Administration Silver Spring Maryland USA
| | - Bing Li
- Office of Bioequivalence, Office of Generic Drugs, Center for Drug Evaluation and Research U.S. Food and Drug Administration Silver Spring Maryland USA
| | - Carol Y. Kim
- Office of Bioequivalence, Office of Generic Drugs, Center for Drug Evaluation and Research U.S. Food and Drug Administration Silver Spring Maryland USA
| | - Lanyan Fang
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research U.S. Food and Drug Administration Silver Spring Maryland USA
| | - Liang Zhao
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research U.S. Food and Drug Administration Silver Spring Maryland USA
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Li Q, Mo R, Wang R, Ni Z, Zheng Y, Han Y, Wu S, Tang F, Yuan X, Liu Y. Characterization and assessment of chemical components in walnuts with various appearances. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2021.104361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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5
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Van Duong T, Ni Z, Taylor LS. Phase Behavior and Crystallization Kinetics of a Poorly Water-Soluble Weakly Basic Drug as a Function of Supersaturation and Media Composition. Mol Pharm 2022; 19:1146-1159. [PMID: 35319221 DOI: 10.1021/acs.molpharmaceut.1c00927] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Understanding the supersaturation and precipitation behavior of poorly water-soluble compounds in vivo and the impact on oral absorption is critical to design consistently performing products with optimized bioavailability. Weakly basic compounds are of particular importance in this context since they have an inherent tendency to undergo supersaturation in vivo upon exit from the stomach and entry into the small intestine because of their pH-dependent solubility. To understand and probe potential in vivo variability of supersaturating systems, rigorous understanding of compound physical properties and phase behavior landscape is essential. Herein, we extensively characterize the solution phase behavior of a model, poorly soluble and weakly basic compound, posaconazole. Phase boundaries for crystal-solution and amorphous-solution were established as a function of pH, allowing possible phase transformations, namely, crystallization or liquid-liquid phase separation, to be mapped for different initial doses and fluid volumes. Endogenous surfactants including sodium taurocholate, lecithin, glycerol monooleate, and sodium oleate in biorelevant media significantly extended the phase boundaries due to solubilization, to an extent that was dependent on the concentration of the surface-active agents. The nucleation induction time of posaconazole was much shorter in biorelevant media in comparison to the corresponding buffer solution, with two distinct regions observed in all media that could be attributed to a change in the nucleation mechanism at high and low supersaturation. The presence of undissolved nanocrystals accelerated the desupersaturation. This work enhances our understanding of biorelevant factors impacting precipitation kinetics, which might affect absorption in vivo. It is expected that findings from this study with posaconazole could be broadly applicable to other weakly basic compounds, after taking into consideration differences in pKa, solubility, and molecular structure.
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Affiliation(s)
- Tu Van Duong
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, Indiana 47907, United States
| | - Zhanglin Ni
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland 20993, United States
| | - Lynne S Taylor
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, Indiana 47907, United States
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ZHANG Z, Ni Z, Yu Z, Lu F, Mei C, Ding X, Yuan W, Zhang W, Jiang G, Sun M, He L, Deng Y, Pang H, Qian J. POS-427 LEFLUNOMIDE PLUS LOW-DOSE PREDNISONE IN PATIENTS WITH PROGRESSIVE IgA NEPHROPATHY: A MULTICENTER, PROSPECTIVE, RANDOMIZED, OPEN-LABELLED AND CONTROLLED TRIAL. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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7
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Ni Z, Zhou Y, Renhua L, Jianxiao S, Li Z, Haijiao J, Haifen Z, Bin Z, Wei F, Qin W, Leyi G, Weiming Z, Jidong Z, Shan M, Weiping L. POS-667 INTELLIGENT "INTERNET PLUS" SERVICES IN THE FIRST CASE OF HOME HEMODIALYSIS IN MAINLAND CHINA. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Cui L, He A, Wang X, Wang Y, Huang X, Ni Z. Development and validation of a competency evaluation model for hospital infection prevention and control practitioners in the post-pandemic era: a mixed methods study. J Hosp Infect 2021; 119:132-140. [PMID: 34666118 PMCID: PMC8520173 DOI: 10.1016/j.jhin.2021.08.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 08/25/2021] [Accepted: 08/25/2021] [Indexed: 12/15/2022]
Abstract
Background During the coronavirus disease 2019 pandemic, the management of nosocomial infections became even more crucial. There is an urgent need to develop a competency model for healthcare practitioners to combat public health emergencies. Aim To determine practitioners' competency in hospital infection prevention and control measures. Methods A theoretical framework was developed based on a literature review, key informant interviews, the Delphi method and a questionnaire survey. These items were evaluated based on response rate, maximum score, minimum score and mean score. Factor analyses, both exploratory and confirmatory, were used to determine the structure of the competency model. Results The effective response rate for the questionnaire was 88.29%, and Cronbach's α-coefficient was 0.964. Factor analysis revealed a Kaiser–Meyer–Olkin score of 0.945. Bartlett's test gave a χ2-value of 10523.439 (df=435; P<0.001). After exploratory factor analysis, the five-factor model was retained, four items were deleted and a five-dimensional, 26-item scale was obtained. The new structure's confirmatory factor analysis revealed high goodness of fit (comparative fit index=0.921; Tucker–Lewis index=0.911; standardized root mean square residual=0.053; root mean square error of approximation=0.044). Conclusion The proposed scale is a useful tool to assess the competency of hospital infection prevention and control practitioners, which can help hospitals to improve infection prevention and control.
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Affiliation(s)
- L Cui
- Department of Health Management, School of Medicine and Health Management, Hangzhou Normal University, Yuhang District, Hangzhou, Zhejiang, PR China
| | - A He
- Department of Health Management, School of Medicine and Health Management, Hangzhou Normal University, Yuhang District, Hangzhou, Zhejiang, PR China
| | - X Wang
- Department of Health Management, School of Medicine and Health Management, Hangzhou Normal University, Yuhang District, Hangzhou, Zhejiang, PR China
| | - Y Wang
- Department of Nosocomial Infection Prevention and Control, Zhongnan Hospital of Wuhan University and Department of Nosocomial Infection Prevention and Control, Leishenshan Hospital, Wuhan, Hubei, PR China
| | - X Huang
- Department of Health Management, School of Medicine and Health Management, Hangzhou Normal University, Yuhang District, Hangzhou, Zhejiang, PR China
| | - Z Ni
- Department of Health Management, School of Medicine and Health Management, Hangzhou Normal University, Yuhang District, Hangzhou, Zhejiang, PR China.
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Bajaj R, Chong LB, Zou L, Tsakalozou E, Ni Z, Giacomini KM, Kroetz DL. Interaction of Commonly Used Oral Molecular Excipients with P-glycoprotein. AAPS J 2021; 23:106. [PMID: 34528148 DOI: 10.1208/s12248-021-00631-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 07/28/2021] [Indexed: 11/30/2022]
Abstract
P-glycoprotein (P-gp) plays a critical role in drug oral bioavailability, and modulation of this transporter can alter the safety and/or efficacy profile of substrate drugs. Individual oral molecular excipients that inhibit P-gp function have been considered a mechanism for improving drug absorption, but a systematic evaluation of the interaction of excipients with P-gp is critical for informed selection of optimal formulations of proprietary and generic drug products. A library of 123 oral molecular excipients was screened for their ability to inhibit P-gp in two orthogonal cell-based assays. β-Cyclodextrin and light green SF yellowish were identified as modest inhibitors of P-gp with IC50 values of 168 μM (95% CI, 118-251 μM) and 204 μM (95% CI, 5.9-1745 μM), respectively. The lack of effect of most of the tested excipients on P-gp transport provides a wide selection of excipients for inclusion in oral formulations with minimal risk of influencing the oral bioavailability of P-gp substrates.
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Affiliation(s)
- Ruchika Bajaj
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, 1550 4th Street RH584E, San Francisco, California, 94143-2911, USA
| | - Lisa B Chong
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, 1550 4th Street RH584E, San Francisco, California, 94143-2911, USA
| | - Ling Zou
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, 1550 4th Street RH584E, San Francisco, California, 94143-2911, USA
| | - Eleftheria Tsakalozou
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Zhanglin Ni
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Kathleen M Giacomini
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, 1550 4th Street RH584E, San Francisco, California, 94143-2911, USA
| | - Deanna L Kroetz
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, 1550 4th Street RH584E, San Francisco, California, 94143-2911, USA.
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RunHong M, Cheng J, Tang F, Yue J, Li Z, Ni Z. Heavy metals in bamboo shoots from Southeastern China and risk assessment. Food Addit Contam Part B Surveill 2021; 14:264-270. [PMID: 34236284 DOI: 10.1080/19393210.2021.1947900] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Bamboo shoot is an indispensable vegetable in Southeastern China, so a survey of heavy metals in bamboo shoots is a relevant topic of interest. The present study sought to analyse the content of seven heavy metals (As, Cd, Cr, Cu, Mn, Pb and Zn) in six bamboo shoot species from Southeastern China. Percentages of 3.8% (Cd) and 8.9% (Pb) of the samples exceeded the maximum limits as established by the Chinese legislation. Further health risk assessment exhibited that the Cd intake contribution of these samples could not be negligible. The hazard index (HI) at average exposure was less than one. The average HI values in moso bamboo shoot were significantly higher than those of other bamboo shoot species. Overall, the results indicated that the intake of bamboo shoots is safe for consumers in Southeastern China.
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Affiliation(s)
- Mo RunHong
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, Zhejiang, P. R. China
| | - Junyong Cheng
- Non-timber Institutute, Hubei Academy of Forestry, Wuhan, Hubei, P. R. China
| | - Fubin Tang
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, Zhejiang, P. R. China
| | - JinJun Yue
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, Zhejiang, P. R. China
| | - Zhengxiang Li
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, Zhejiang, P. R. China
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HENN L, Ni Z, Liang X, Guedes M, Zhao J, Wittbrodt E, Khan F, Sloand J, Garcia-Sanchez J, Hedman K, James G, Pecoits-Filho R, Pisoni R, Robinson B, Zuo L. POS-526 UNDERSTANDING THE PATIENT EXPERIENCE AND CLINICAL COURSE DURING THE INCIDENT DIALYSIS PERIOD: DESIGN AND IMPLEMENTATION OF A DOPPS CHINA STUDY. Kidney Int Rep 2021. [DOI: 10.1016/j.ekir.2021.03.554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Shen D, Wu S, Zheng Y, Han Y, Ni Z, Li S, Tang F, Mo R, Liu Y. Characterization of iron walnut in different regions of China based on phytochemical composition. J Food Sci Technol 2021; 58:1358-1367. [PMID: 33746264 DOI: 10.1007/s13197-020-04647-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 07/03/2020] [Accepted: 07/10/2020] [Indexed: 11/29/2022]
Abstract
Little is known about the phytochemical composition of iron walnuts. Differences in the geographical origin of iron walnuts associated with economic benefits should also be examined. In this study, the phytochemical composition (fatty acids, Vitamin E, total polyphenols and flavonoids, amino acids, and minerals) of iron walnuts in China was investigated. The results showed that there were significant differences (p < 0.05) in the phytochemical composition of iron walnut oils and flours from different regions. Positive (r > 0.5, p < 0.05) and negative (r < - 0.5, p < 0.05) correlations were found between amino acids/minerals and amino acids/oleic acid, with the highest correlation coefficient (r = 0.742, p < 0.05) between Cu and tyrosine. In addition, based on the 12 phytochemical fingerprints selected by random forest, a geographical-origin identification model for iron walnuts was established, with a corresponding correct classification rate of 96.6%. The top three phytochemical fingerprints for the geographical-origin identification of iron walnut were microelements, macroelements, and antioxidant composition, with contribution rates of 61.7%, 18.1%, and 9.9%, respectively.
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Affiliation(s)
- Danyu Shen
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400 People's Republic of China.,Nanjing Forestry University, Nanjing, 210037 People's Republic of China
| | - Shutian Wu
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400 People's Republic of China.,Nanjing Forestry University, Nanjing, 210037 People's Republic of China
| | - Yuewen Zheng
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400 People's Republic of China
| | - Yongxiang Han
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400 People's Republic of China
| | - Zhanglin Ni
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400 People's Republic of China
| | - Shiliang Li
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400 People's Republic of China
| | - Fubin Tang
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400 People's Republic of China
| | - Runhong Mo
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400 People's Republic of China
| | - Yihua Liu
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400 People's Republic of China
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Shi X, Dong X, Zhai J, Liu X, Lu D, Ni Z, Chen A, Cai K. P58.01 Systematic Identification of Methylation Sites Associated with Lung Adenocarcinoma Prognosis. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Shi X, Dong X, Zhai J, Liu X, Lu D, Ni Z, Chen A, Cai K. P66.02 A Novel Risk Model of Lung Adenocarcinoma Based on Lung Cancer Susceptibility Genes. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Shi X, Dong X, Zhai J, Liu X, Lu D, Ni Z, Chen A, Cai K. P54.01 Development and Validation of a Novel Nomogram Integrated with Lung Cancer Susceptibility Genes for Squamous Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Le Merdy M, Tan ML, Sun D, Ni Z, Lee SC, Babiskin A, Zhao L. Physiologically Based Pharmacokinetic Modeling Approach to Identify the Drug-Drug Interaction Mechanism of Nifedipine and a Proton Pump Inhibitor, Omeprazole. Eur J Drug Metab Pharmacokinet 2020; 46:41-51. [PMID: 33064292 DOI: 10.1007/s13318-020-00649-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND AND OBJECTIVES Proton pump inhibitors (PPIs) can affect the intragastric release of other drugs from their dosage forms by elevating the gastric pH. They may also influence drug absorption and metabolism by interacting with P-glycoprotein or with the cytochrome P450 (CYP) enzyme system. Nifedipine is a Biopharmaceutics Classification System (BCS) class II drug with low solubility across physiologic pH and high permeability. Previous studies have demonstrated that drug-drug interaction (DDI) existed between omeprazole and nifedipine with significantly increased systemic exposure of nifedipine in subjects after pre-treatment for 7 days with omeprazole compared to the subjects without omeprazole treatment. It was shown that omeprazole not only induced an increase in intragastric pH, but also inhibited the CYP3A4 activity, while CYP3A4-mediated oxidation is the main metabolic pathway of nifedipine. The purpose of this study is to apply a physiologically based pharmacokinetic (PBPK) modeling approach to investigate the DDI mechanism for an immediate release formulation of nifedipine with omeprazole. METHODS A previously published model for omeprazole was modified to integrate metabolites and to update CYP inhibition based on the most updated published in vitro data. We simulated the nifedipine pharmacokinetics in healthy subjects with or without the multiple-dose pretreatment of omeprazole (20 mg) following oral administrations of immediate-release (IR) (10 mg) nifedipine. Nifedipine solubility at different pHs was used to simulate the nifedipine pharmacokinetics for both clinical arms. Multiple sensitivity analyses were performed to understand the impact of gastric pH and the CYP3A4-mediated gut and liver first pass metabolism on the overall nifedipine pharmacokinetics. RESULTS The developed PBPK model properly described the pharmacokinetics of nifedipine and predicted the inhibitory effect of multiple-dose omeprazole on CYP3A4 activity. With the incorporation of the physiologic effect of omeprazole on both gastric pH and CYP3A4 to the PBPK model, the verified PBPK model allows evaluating the impact of the increase in gastric pH and/or CYP3A4 inhibition. The simulated results show that the nifedipine metabolic inhibition by omeprazole may play an important role in the DDI between nifedipine and omeprazole for IR nifedipine formulation. CONCLUSION The developed full PBPK model with the capability to simulate DDI by considering gastric pH change and metabolic inhibition provides a mechanistic understanding of the observed DDI of nifedipine with a PPI, omeprazole.
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Affiliation(s)
- Maxime Le Merdy
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
| | - Ming-Liang Tan
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
| | - Dajun Sun
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
| | - Zhanglin Ni
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
| | - Sue-Chih Lee
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
| | - Andrew Babiskin
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA.
| | - Liang Zhao
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
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17
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Wu S, Shen D, Wang R, Han Y, Zheng Y, Ni Z, Tang F, Mo R, Liu Y. Evaluation of risk levels of trace elements in walnuts from China and their influence factors: Planting area and cultivar. Ecotoxicol Environ Saf 2020; 203:110996. [PMID: 32678764 DOI: 10.1016/j.ecoenv.2020.110996] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/03/2020] [Accepted: 07/06/2020] [Indexed: 06/11/2023]
Abstract
The potential health risk of trace elements in nut foods has been widely concerned. The accumulations of trace elements by plants in the environment are disturbed by multiple factors. The objective of this work was to investigate the risk levels of trace elements in walnuts and their influence factors (planting area and cultivar). A total of 228 walnut samples were collected from four major walnut producing areas of China. The contents of essential elements for Fe, Cu, Zn, Mo and Se were 35.8, 21.9, 14.8, 0.3 and 0.04 mg/kg, respectively. The contribution of Cu for dietary reference intake was as high as 82.22%. The risk levels of potential toxicological elements and toxic elements within the acceptable limits. Significantly, the hazard quotients (HQs) of Ba and Co were up to 26.14% and 25.31%, respectively. The effect of planting area on trace elements was determined from the aspects of regional distribution and urbanization. Significant differences of essential elements were found between northeast and northwest areas. The urbanization directly influenced toxic elements, which could cause variation up to 85.0% (Pb) and 42.9% (As). Finally, cultivar effect was confirmed that all walnut cultivars were divided into four categories with different trace element characteristics.
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Affiliation(s)
- Shutian Wu
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, PR China
| | - Danyu Shen
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, PR China
| | - Ruohui Wang
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, PR China
| | - Yongxiang Han
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, PR China
| | - Yuewen Zheng
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, PR China
| | - Zhanglin Ni
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, PR China
| | - Fubin Tang
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, PR China
| | - Runhong Mo
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, PR China.
| | - Yihua Liu
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, PR China.
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18
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Yu H, Ni Z, Liang ZA. [Subphenotypes in acute respiratory distress syndrome]. Zhonghua Jie He He Hu Xi Za Zhi 2020; 43:808-811. [PMID: 32894917 DOI: 10.3760/cma.j.cn112147-20191127-00795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
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19
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Wang Y, Wu W, Cheng Z, Tan X, Yang Z, Zeng X, Mei B, Ni Z, Wang X. Super-factors associated with transmission of occupational COVID-19 infection among healthcare staff in Wuhan, China. J Hosp Infect 2020; 106:25-34. [PMID: 32574702 PMCID: PMC7836737 DOI: 10.1016/j.jhin.2020.06.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 06/17/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND Globally, there have been many cases of coronavirus disease 2019 (COVID-19) among medical staff; however, the main factors associated with the infection are not well understood. AIM To identify the super-factors causing COVID-19 infection in medical staff in China. METHODS A cross-sectional study was conducted between January 1st and February 30th, 2020, in which front-line members of medical staff who took part in the care and treatment of patients with COVID-19 were enrolled. Epidemiological and demographic data between infected and uninfected groups were collected and compared. Social network analysis (SNA) was used to establish socio-metric social links between influencing factors. FINDINGS A total of 92 medical staff were enrolled. In all participant groups, the super-factor identified by the network was wearing a medical protective mask or surgical mask correctly (degree: 572; closeness: 25; betweenness centrality: 3.23). Touching the cheek, nose, and mouth while working was the super-factor in the infected group. This was the biggest node in the network and had the strongest influence (degree: 370; closeness: 29; betweenness centrality: 0.37). Self-protection score was the super-factor in the uninfected group but was the isolated factor in the infected group (degree: 201; closeness: 28; betweenness centrality: 5.64). For family members, the exposure history to Huanan Seafood Wholesale Market and the contact history to wild animals were two isolated nodes. CONCLUSION High self-protection score was the main factor that prevented medical staff from contracting COVID-19 infection. The main factor contributing to COVID-19 infections among medical staff was touching the cheek, nose, and mouth while working.
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Affiliation(s)
- Y Wang
- Department of Infection Management, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - W Wu
- School of Public Health and Management, Hubei University of Medicine, Shiyan, China; School of Health Science, Wuhan University, Wuhan, China
| | - Z Cheng
- Department of Respiratory and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - X Tan
- School of Health Science, Wuhan University, Wuhan, China
| | - Z Yang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - X Zeng
- Center for Evidence-Based and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - B Mei
- Department of Neurology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Z Ni
- School of Medicine, Hangzhou Normal University, Hangzhou, China
| | - X Wang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China; Center for Evidence-Based and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.
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20
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Zou L, Spanogiannopoulos P, Pieper LM, Chien HC, Cai W, Khuri N, Pottel J, Vora B, Ni Z, Tsakalozou E, Zhang W, Shoichet BK, Giacomini KM, Turnbaugh PJ. Bacterial metabolism rescues the inhibition of intestinal drug absorption by food and drug additives. Proc Natl Acad Sci U S A 2020; 117:16009-16018. [PMID: 32571913 PMCID: PMC7355017 DOI: 10.1073/pnas.1920483117] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Food and drug products contain diverse and abundant small-molecule additives (excipients) with unclear impacts on human physiology, drug safety, and response. Here, we evaluate their potential impact on intestinal drug absorption. By screening 136 unique compounds for inhibition of the key intestinal transporter OATP2B1 we identified and validated 24 potent OATP2B1 inhibitors, characterized by higher molecular weight and hydrophobicity compared to poor or noninhibitors. OATP2B1 inhibitors were also enriched for dyes, including 8 azo (R-N=N-R') dyes. Pharmacokinetic studies in mice confirmed that FD&C Red No. 40, a common azo dye excipient and a potent inhibitor of OATP2B1, decreased the plasma level of the OATP2B1 substrate fexofenadine, suggesting that FD&C Red No. 40 has the potential to block drug absorption through OATP2B1 inhibition in vivo. However, the gut microbiomes of multiple unrelated healthy individuals as well as diverse human gut bacterial isolates were capable of inactivating the identified azo dye excipients, producing metabolites that no longer inhibit OATP2B1 transport. These results support a beneficial role for the microbiome in limiting the unintended effects of food and drug additives in the intestine and provide a framework for the data-driven selection of excipients. Furthermore, the ubiquity and genetic diversity of gut bacterial azoreductases coupled to experiments in conventionally raised and gnotobiotic mice suggest that variations in gut microbial community structure may be less important to consider relative to the high concentrations of azo dyes in food products, which have the potential to saturate gut bacterial enzymatic activity.
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Affiliation(s)
- Ling Zou
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, CA 94158
| | - Peter Spanogiannopoulos
- Department of Microbiology and Immunology, G.W. Hooper Research Foundation, University of California, San Francisco, CA 94143
| | - Lindsey M Pieper
- Department of Microbiology and Immunology, G.W. Hooper Research Foundation, University of California, San Francisco, CA 94143
| | - Huan-Chieh Chien
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, CA 94158
| | - Wenlong Cai
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA 94720
| | - Natalia Khuri
- Department of Bioengineering, Stanford University, Stanford, CA 94305
| | - Joshua Pottel
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA 94158
- QB3 Institute, University of California, San Francisco, CA 94158
| | - Bianca Vora
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, CA 94158
| | - Zhanglin Ni
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, MD 20993
| | - Eleftheria Tsakalozou
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, MD 20993
| | - Wenjun Zhang
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA 94720
- Chan Zuckerberg Biohub, San Francisco, CA 94158
| | - Brian K Shoichet
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA 94158
- QB3 Institute, University of California, San Francisco, CA 94158
| | - Kathleen M Giacomini
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, CA 94158;
| | - Peter J Turnbaugh
- Department of Microbiology and Immunology, G.W. Hooper Research Foundation, University of California, San Francisco, CA 94143;
- Chan Zuckerberg Biohub, San Francisco, CA 94158
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21
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Liu X, Yousef S, Anissimov YG, van der Hoek J, Tsakalozou E, Ni Z, Grice JE, Roberts MS. Diffusion modelling of percutaneous absorption kinetics. Predicting urinary excretion from in vitro skin permeation tests (IVPT) for an infinite dose. Eur J Pharm Biopharm 2020; 149:30-44. [DOI: 10.1016/j.ejpb.2020.01.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 01/25/2020] [Accepted: 01/29/2020] [Indexed: 10/25/2022]
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22
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LIN Q, Li S, Jiang N, Shao X, Zhang M, Jin H, Zhang Z, Shen J, Zhou J, Zhou W, Gu L, Lu R, Ni Z. SAT-023 PINK1-PARKIN PATHWAY OF MITOPHAGY PROTECTS AGAINST CONTRAST-INDUCED ACUTE KIDNEY INJURY VIA DECREASING MITOCHONDRIAL ROS AND NLRP3 INFLAMMASOME ACTIVATION. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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23
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Zou L, Pottel J, Khuri N, Ngo HX, Ni Z, Tsakalozou E, Warren MS, Huang Y, Shoichet BK, Giacomini KM. Interactions of Oral Molecular Excipients with Breast Cancer Resistance Protein, BCRP. Mol Pharm 2020; 17:748-756. [PMID: 31990564 DOI: 10.1021/acs.molpharmaceut.9b00658] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Mechanistic-understanding-based selection of excipients may improve formulation development strategies for generic drug products and potentially accelerate their approval. Our study aimed at investigating the effects of molecular excipients present in orally administered FDA-approved drug products on the intestinal efflux transporter, BCRP (ABCG2), which plays a critical role in drug absorption with potential implications on drug safety and efficacy. We determined the interactions of 136 oral molecular excipients with BCRP in isolated membrane vesicles and identified 26 excipients as BCRP inhibitors with IC50 values less than 5 μM using 3H-cholecystokinin octapeptide (3H-CCK8). These BCRP inhibitors belonged to three functional categories of excipients: dyes, surfactants, and flavoring agents. Compared with noninhibitors, BCRP inhibitors had significantly higher molecular weights and SLogP values. The inhibitory effects of excipients identified in membrane vesicles were also evaluated in BCRP-overexpressing HEK293 cells at similar concentrations. Only 1 of the 26 inhibitors of BCRP identified in vesicles inhibited BCRP-mediated 3H-oxypurinol uptake by more than 50%, consistent with the notion that BCRP inhibition depends on transmembrane or intracellular availability of the inhibitors. Collectively, the results of this study provide new information on excipient selection during the development of drug products with active pharmaceutical ingredients that are BCRP substrates.
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Affiliation(s)
- Ling Zou
- Department of Bioengineering and Therapeutic Sciences, Schools of Pharmacy and Medicine, University of California, San Francisco, California 94158, United States
| | - Joshua Pottel
- Department of Pharmaceutical Chemistry & QB3 Institute, University of California, San Francisco, California 94158, United States
| | - Natalia Khuri
- Department of Bioengineering, Stanford University, Stanford, California 94305, United States
| | - Huy X Ngo
- Department of Bioengineering and Therapeutic Sciences, Schools of Pharmacy and Medicine, University of California, San Francisco, California 94158, United States
| | - Zhanglin Ni
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland 20993, United States
| | - Eleftheria Tsakalozou
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland 20993, United States
| | - Mark S Warren
- Optivia Biotechnology, Inc., Santa Clara, California 95054, United States
| | - Yong Huang
- Optivia Biotechnology, Inc., Santa Clara, California 95054, United States
| | - Brian K Shoichet
- Department of Pharmaceutical Chemistry & QB3 Institute, University of California, San Francisco, California 94158, United States
| | - Kathleen M Giacomini
- Department of Bioengineering and Therapeutic Sciences, Schools of Pharmacy and Medicine, University of California, San Francisco, California 94158, United States
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24
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Wu S, Ni Z, Wang R, Zhao B, Han Y, Zheng Y, Liu F, Gong Y, Tang F, Liu Y. The effects of cultivar and climate zone on phytochemical components of walnut (
Juglans regia
L
.
). Food Energy Secur 2020. [DOI: 10.1002/fes3.196] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Affiliation(s)
- Shutian Wu
- Research Institute of Subtropical Forestry Chinese Academy of Forestry Fuyang China
- Nanjing Forestry University Nanjing China
| | - Zhanglin Ni
- Research Institute of Subtropical Forestry Chinese Academy of Forestry Fuyang China
| | - Ruohui Wang
- Research Institute of Subtropical Forestry Chinese Academy of Forestry Fuyang China
| | - Baojun Zhao
- Liaoning Institute of Economic Forestry Dalian China
| | - Yongxiang Han
- Research Institute of Subtropical Forestry Chinese Academy of Forestry Fuyang China
| | - Yuewen Zheng
- Research Institute of Subtropical Forestry Chinese Academy of Forestry Fuyang China
| | - Feng Liu
- Liaoning Institute of Economic Forestry Dalian China
| | - Yonghong Gong
- Liaoning Institute of Economic Forestry Dalian China
| | - Fubin Tang
- Research Institute of Subtropical Forestry Chinese Academy of Forestry Fuyang China
| | - Yihua Liu
- Research Institute of Subtropical Forestry Chinese Academy of Forestry Fuyang China
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25
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Yang P, Sun GF, Lu Y, Ni Z. Monitoring of optical emissions in laser cladding of 316L stainless steel. Appl Opt 2019; 58:8733-8742. [PMID: 31873650 DOI: 10.1364/ao.58.008733] [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] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 09/30/2019] [Indexed: 06/10/2023]
Abstract
Laser cladding is so complex that small disturbances may cause defects. Developing on-line monitoring technology for laser cladding is thus a priority task. Compared with expensive spectrometers and high-speed cameras, an economical optical sensing system based on two different photodiodes was established to optimize laser parameters and help monitor abnormal working conditions. In order to find optimal parameters, a series of experiments was carried out under different operating parameters such as laser power, scanning speed, and powder feeding rate. A practical rule is summarized to optimize process parameters by analyzing the time domain characteristics of the optical signal. Several experiments under different working conditions were performed to detect abnormal working conditions. Not only can an abnormal situation be recognized, but its type can also be distinguished by analyzing optical signals in the time and frequency domains. The optical sensing system provides a better understanding and accurate evaluation of laser cladding.
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26
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Chen Y, Jiang D, Chen W, Zhang X, Luan L, Xu J, Su J, Gao F, Ni Z, Wang H, Tan L, Hou Y. Poor prognostic impact of NTRK2 gene variation in esophageal squamous cell carcinoma. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz238.051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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27
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Wu S, Zheng Y, Li X, Han Y, Qu M, Ni Z, Tang F, Liu Y. Risk assessment and prediction for toxic heavy metals in chestnut and growth soil from China. J Sci Food Agric 2019; 99:4114-4122. [PMID: 30761542 DOI: 10.1002/jsfa.9641] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 01/26/2019] [Accepted: 02/11/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Toxic heavy metals (THMs) cause severe environmental hazards and threaten human health through various consumption of food stuff. However, little is known of THMs in chestnuts. In this study, the risk assessment and prediction of THMs [lead (Pb), arsenic (As), chromium (Cr), cadmium (Cd) and mercury (Hg)] in chestnuts and growth soils from China were investigated. RESULTS The main detected THMs in chestnuts and growth soils were As and Cd. The total pollution levels of the five THMs (Nemerow pollution indexes, NPIs) were 0.062 and 1.06, respectively. The dietary risks for children were higher than those of adults, especially short-term non-carcinogenic risk. The main combined risks from the relationships between THMs were Pb-Cr (r = 0.85, P < 0.01) in chestnuts and Pb-As (r = 0.59, P < 0.01) in growth soils. The risk source was found to be the uptake effect of THMs from soil to chestnut, with the highest bioaccumulation factors (BCFs) of Cd (0.254). Several comprehensive risk models were established with the highest coefficient of determination (R2 ) of 0.79. In addition, the main contribution rates of different soil parameters to comprehensive risk of THMs uptake were 49.8% (Cd), 23.4% (pH), 13.8% (Cr) and 13.0% (organic carbon). CONCLUSION The total pollution levels of THMs fell outside of the safety domain in growth soils. Furthermore, more attention needs to be paid to Cd pollution owing to its low environment background value and high accumulation ability. Three main soil parameters (Cr content, pH, organic carbon) played important roles in the formations and accumulations of THMs in chestnuts. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Shutian Wu
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, China
| | - Yuewen Zheng
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, China
| | - Xianbin Li
- Institute for the Control of Agrochemicals, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Yongxiang Han
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, China
| | - Minghua Qu
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, China
| | - Zhanglin Ni
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, China
| | - Fubin Tang
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, China
| | - Yihua Liu
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, China
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28
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Yang SS, Jiang SG, Tudeng DCC, Ni Z, Xiao CZ. [One case of pyoderma gangrenosum in the lower limbs in Tibetan Plateau treated with vacuum sealing drainage combined with irrigation of oxygen loaded fluid]. Zhonghua Shao Shang Za Zhi 2019; 35:69-71. [PMID: 30678405 DOI: 10.3760/cma.j.issn.1009-2587.2019.01.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A 54 years old male patient with chronic leg ulcers was admitted in our hospital in November 2017. He was diagnosed as pyoderma gangrenosum by the pathological examination. Then the wound was treated with simple vacuum sealing drainage combined with irrigation of oxygen loaded fluid. This therapy overcame the shortage of hypoxia in the Tibetan Plateau on wound healing, resulting in a better wound healing. The patient was eventually cured and discharged from hospital.
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Affiliation(s)
- S S Yang
- Department of Burns and Plastic Surgery, the General Hospital of PLA Tibet Military Area Command, Lhasa 850000, China
| | - S G Jiang
- Department of Burns and Plastic Surgery, the General Hospital of PLA Tibet Military Area Command, Lhasa 850000, China
| | - D C C Tudeng
- Department of Burns and Plastic Surgery, the General Hospital of PLA Tibet Military Area Command, Lhasa 850000, China
| | - Z Ni
- Department of Pathology, the General Hospital of PLA Tibet Military Area Command, Lhasa 850000, China
| | - C Z Xiao
- Department of Burns and Plastic Surgery, the General Hospital of PLA Tibet Military Area Command, Lhasa 850000, China
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29
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Affiliation(s)
- Ruchika Bajaj
- Bioengineering and therapeutic sciencesUniversity of California San FranciscoSan FranciscoCA
| | - Lisa B Chong
- Bioengineering and therapeutic sciencesUniversity of California San FranciscoSan FranciscoCA
| | - Ling Zou
- Bioengineering and therapeutic sciencesUniversity of California San FranciscoSan FranciscoCA
| | - Eleftheria Tsakalozou
- Center of Drug Evaluation and ResearchUS Food and Drug AdministrationSilver SpringMD
| | - Zhanglin Ni
- Center of Drug Evaluation and ResearchUS Food and Drug AdministrationSilver SpringCA
| | - Kathleen M Giacomini
- Bioengineering and therapeutic sciencesUniversity of California San FranciscoSan FranciscoCA
| | - Deanna L Kroetz
- Bioengineering and therapeutic sciencesUniversity of California San FranciscoSan FranciscoCA
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30
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Zhu M, Wang L, Yang J, Xie K, Zhu M, Liu S, Xu C, Wang J, Gu L, Ni Z, Xu G, Che M. Erythropoietin Ameliorates Lung Injury by Accelerating Pulmonary Endothelium Cell Proliferation via Janus Kinase-Signal Transducer and Activator of Transcription 3 Pathway After Kidney Ischemia and Reperfusion Injury. Transplant Proc 2019; 51:972-978. [PMID: 30979490 DOI: 10.1016/j.transproceed.2019.01.059] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 11/19/2018] [Accepted: 01/17/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND/AIMS Kidney ischemia and reperfusion injury could cause microvascular barrier dysfunction, lung inflammatory cascades activation, and programmed cell death of pulmonary endothelium, leading to acute lung injury. Our study aimed at determining whether erythropoietin (EPO) can ameliorate lung dysfunction following renal ischemia and reperfusion (IR) injury and explored the underlying mechanisms. METHODS In vivo, C57BL/6 mice received EPO (6000 U/kg) before right renal vascular pedicles clamping for 30 minutes, followed by 24 hours of reperfusion. The lung histopathologic changes and inflammatory cytokines expression were assessed. In vitro, cultured human umbilical vein endothelial cells were treated with EPO, and apoptosis rate, proliferation capacity, and phosphorylation status of the Janus kinase-signal transducer and activator of transcription 3 (Jak-STAT3) pathway were measured respectively in the presence or absence of lipopolysaccharide stimulation. RESULTS In vivo, EPO remarkably attenuated pulmonary interstitial and alveolar epithelial edema caused by renal IR injury. In vitro, the proliferation capacity of human umbilical vein endothelial cells was significantly increased under EPO stimulation, which correlated with changes in Jak-STAT3 signaling. CONCLUSION Our data indicated that EPO is able to ameliorate acute lung tissue damage induced by renal IR, and at least in part, via the Jak-STAT3 pathway.
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Affiliation(s)
- M Zhu
- Department of Critical Care Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - L Wang
- Department of Emergency, South Campus, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - J Yang
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - K Xie
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - M Zhu
- Department of Nephrology, South Campus, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - S Liu
- Department of Nephrology, South Campus, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - C Xu
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - J Wang
- Department of Critical Care Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - L Gu
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Z Ni
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - G Xu
- Department of Cardiovascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - M Che
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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Zou L, Ni Z, Tsakalozou E, Giacomini KM. Impact of Pharmaceutical Excipients on Oral Drug Absorption: A Focus on Intestinal Drug Transporters. Clin Pharmacol Ther 2019; 105:323-325. [PMID: 30663035 DOI: 10.1002/cpt.1292] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 10/08/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Ling Zou
- Department of Bioengineering and Therapeutic Sciences, Schools of Pharmacy and Medicine, University of California, San Francisco, California, USA
| | - Zhanglin Ni
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Eleftheria Tsakalozou
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Kathleen M Giacomini
- Department of Bioengineering and Therapeutic Sciences, Schools of Pharmacy and Medicine, University of California, San Francisco, California, USA
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Tan Q, Chen B, Wang Q, Xu W, Wang Y, Lin Z, Luo F, Huang S, Zhu Y, Su N, Jin M, Li C, Kuang L, Qi H, Ni Z, Wang Z, Luo X, Jiang W, Chen H, Chen S, Li F, Zhang B, Huang J, Zhang R, Jin K, Xu X, Deng C, Du X, Xie Y, Chen L. A novel FGFR1-binding peptide attenuates the degeneration of articular cartilage in adult mice. Osteoarthritis Cartilage 2018; 26:1733-1743. [PMID: 30201491 DOI: 10.1016/j.joca.2018.08.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [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: 11/29/2017] [Revised: 08/13/2018] [Accepted: 08/28/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE We previously reported that genetic ablation of (Fibroblast Growth Factors Receptors) FGFR1 in knee cartilage attenuates the degeneration of articular cartilage in adult mice, which suggests that FGFR1 is a potential targeting molecule for osteoarthritis (OA). Here, we identified R1-P1, an inhibitory peptide for FGFR1 and investigated its effect on the pathogenesis of OA in mice induced by destabilization of medial meniscus (DMM). DESIGN Binding ability between R1-P1 and FGFR1 protein was evaluated by enzyme-linked immuno sorbent assay (ELISA) and molecular docking. Alterations in cartilage were evaluated histologically. The expression levels of molecules associated with articular cartilage homeostasis and FGFR1 signaling were analyzed by quantitative real-time polymerase chain reaction (qRT-PCR), Western blotting and immunohistochemistry (IHC). The chondrocyte apoptosis was detected by terminal-deoxynucleoitidyl transferase mediated nick end labeling (TUNEL) assay. RESULTS R1-P1 had highly binding affinities to human FGFR1 protein, and efficiently inhibited extracellular signal-regulated kinase (ERK)1/2 pathway in mouse primary chondrocytes. In addition, R1-P1 attenuated the IL-1β induced significant loss of proteoglycan in full-thickness cartilage tissue from human femur head. Moreover, this peptide can significantly restore the IL-1β mediated loss of proteoglycan and type II collagen (Col II) and attenuate the expression of matrix metalloproteinase-13 (MMP13) in mouse primary chondrocytes. Finally, intra-articular injection of R1-P1 remarkably attenuated the loss of proteoglycan and the destruction of articular cartilage and decreased the expressions of extracellular matrix (ECM) degrading enzymes and apoptosis in articular chondrocytes of mice underwent DMM surgery. CONCLUSIONS R1-P1, a novel inhibitory peptide for FGFR1, attenuates the degeneration of articular cartilage in adult mice, which is a potential leading molecule for the treatment of OA.
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MESH Headings
- Animals
- Apoptosis/drug effects
- Arthritis, Experimental/metabolism
- Arthritis, Experimental/pathology
- Arthritis, Experimental/prevention & control
- Cartilage, Articular/drug effects
- Cartilage, Articular/metabolism
- Cartilage, Articular/pathology
- Cells, Cultured
- Chondrocytes/drug effects
- Chondrocytes/pathology
- Drug Evaluation, Preclinical/methods
- Extracellular Matrix/drug effects
- Extracellular Matrix/pathology
- Humans
- MAP Kinase Signaling System/drug effects
- Male
- Mice, Inbred C57BL
- Oligopeptides/pharmacology
- Oligopeptides/therapeutic use
- Osteoarthritis/metabolism
- Osteoarthritis/pathology
- Osteoarthritis/prevention & control
- Proteoglycans/metabolism
- Receptor, Fibroblast Growth Factor, Type 1/antagonists & inhibitors
- Receptor, Fibroblast Growth Factor, Type 1/metabolism
- Tissue Culture Techniques
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Affiliation(s)
- Q Tan
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - B Chen
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Q Wang
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - W Xu
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Y Wang
- College of Bioengineering, Chongqing Institute of Technology, Chongqing 400050, China
| | - Z Lin
- College of Bioengineering, Chongqing Institute of Technology, Chongqing 400050, China
| | - F Luo
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - S Huang
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Y Zhu
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - N Su
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - M Jin
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - C Li
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - L Kuang
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - H Qi
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Z Ni
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Z Wang
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - X Luo
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - W Jiang
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - H Chen
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - S Chen
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - F Li
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - B Zhang
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - J Huang
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - R Zhang
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - K Jin
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - X Xu
- Faculty of Health Sciences, University of Macau, Macau SAR 00853, China
| | - C Deng
- Faculty of Health Sciences, University of Macau, Macau SAR 00853, China
| | - X Du
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China.
| | - Y Xie
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China.
| | - L Chen
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China.
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Zheng Y, Shen D, Wu S, Han Y, Li S, Tang F, Ni Z, Mo R, Liu Y. Uptake effects of toxic heavy metals from growth soils into jujube and persimmon of China. Environ Sci Pollut Res Int 2018; 25:31593-31602. [PMID: 30206831 DOI: 10.1007/s11356-018-2959-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 06/20/2018] [Accepted: 08/14/2018] [Indexed: 06/08/2023]
Abstract
Compared with other agricultural plants, information about uptake effects of toxic heavy metals from growth soils into persimmon and jujube are scarce. In this study, the single and comprehensive uptake effects of five toxic heavy metals (Pb, As, Cd, Cr, and Hg) between the two fruits and their growth soils were investigated. The results showed that the average concentrations of heavy metals in the two fruits were found to be 30 (Pb), 6.6 (As), 2.3 (Cd), 38 (Cr), and 0.33 (Hg) μg/kg, respectively. The average concentrations of heavy metals in their growth soils were 26.31 (Pb), 9.63 (As), 0.12 (Cd), 57.6 (Cr), and 0.049 (Hg) mg/kg, respectively. An uptake effect was observed for the two fruits. The values of Nemerow pollution index (NPI) in the two fruits and their growth soils were 0.10 and 0.55, respectively. The average bioconcentration factor (BCF) values of Pb, As, Cd, Cr, and Hg in the two fruits were 0.0012, 0.00075, 0.021, 0.00077, and 0.012, respectively. Based on the residue levels of toxic heavy metals in the growth soils and soil parameters, the prediction models for NPI and BCF were established, with the adjusted regression coefficients of 0.65 (NPI) and 0.81 (BCF). The contribution rates of different soil parameters to NPI were 21.7% (OC), 16.1% (Pb), 17.1% (Cr), 19.8% (Cd), and 25.4% (As), respectively. The contribution rates of different soil parameters to BCF were 10.2% (OC), 9.4% (Cr), and 80.4% (Cd), respectively.
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Affiliation(s)
- Yuewen Zheng
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, China
| | - Danyu Shen
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, China
| | - Shutian Wu
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, China
| | - Yongxiang Han
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, China
| | - Shiliang Li
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, China
| | - Fubin Tang
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, China
| | - Zhanglin Ni
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, China
| | - Runhong Mo
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, China
| | - Yihua Liu
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, China.
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Zheng Y, Yang X, Shi H, Yang Z, Yan C, Ni Z, Li M, Sah B, Liu W, Xu W, Yao X, Zhu Z, Yan M, Zhu Z, Li C. Phase II trial of neoadjuvant therapy using apatinib plus SOX regimen in locally advanced gastric cancer: Updated results. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy282.057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Han Y, Ni Z, Li S, Qu M, Tang F, Mo R, Ye C, Liu Y. Distribution, relationship, and risk assessment of toxic heavy metals in walnuts and growth soil. Environ Sci Pollut Res Int 2018; 25:17434-17443. [PMID: 29656354 DOI: 10.1007/s11356-018-1896-3] [Citation(s) in RCA: 7] [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: 10/12/2017] [Accepted: 03/27/2018] [Indexed: 06/08/2023]
Abstract
Walnut is one of the most popular nuts worldwide and contains various mineral nutrients. Little is known, however, about the relationship between toxic heavy metals in walnuts and growth soil. In this study, we investigated the distribution, relationship, and risk assessment of five toxic heavy metals-lead (Pb), arsenic (As), chromium (Cr), cadmium (Cd), and mercury (Hg)-in walnuts and growth soil in the main production areas of China. The results showed that the main heavy metal pollution in walnut and soil was Pb and Cd. Regionally, positive relationships existed between heavy metals and the pH and organic matter of soil. In addition, we observed a notable uptake effect between walnut and growth soil. In this study, we found a significant correlation (r = 0.786, P < 0.05) between the bioconcentration factors and the longitude of the sampling areas. The risks (total hazard quotients) of five heavy metals toward children and adults by dietary walnut consumption were 46.8 and 56.2%, respectively. The ability to identify toxic heavy metal pollution in walnuts and growth soil could be helpful to screen suitable planting sites to prevent and control heavy metal pollution and improve the quality and safety of walnut.
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Affiliation(s)
- Yongxiang Han
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, China
| | - Zhanglin Ni
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, China
| | - Shiliang Li
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, China
| | - Minghua Qu
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, China
| | - Fubin Tang
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, China
| | - Runhong Mo
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, China
| | - Caifen Ye
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, China
| | - Yihua Liu
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, 311400, China.
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36
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Kania M, Gautier M, Ni Z, Bonjour E, Guégan R, Michel P, Jame P, Liu J, Gourdon R. Analytical indicators to characterize Particulate Organic Matter (POM) and its evolution in French Vertical Flow Constructed Wetlands (VFCWs). Sci Total Environ 2018; 622-623:801-813. [PMID: 29223907 DOI: 10.1016/j.scitotenv.2017.11.357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 11/30/2017] [Accepted: 11/30/2017] [Indexed: 06/07/2023]
Abstract
The design of French VFCWs leads to the formation of a sludge layer at the surface of the first filters due to the retention of suspended solids from the percolation of unsettled wastewater. This layer plays a major role in the system but still little is known on its characteristics and evolutions. In this study, suspended solids and sludge deposits sampled from two French VFCW plants were analyzed by different methods in the objective to assess the evolution of particulate organic matter (POM) along the treatment chain and within the sludge layer, and identify relevant analytical indicators of these phenomena. The treatment chain included an aerobic trickling filter followed by FeCl3 injection and two successive stages of filters. Thermal analyses showed that OM contents of suspended solids decreased along the treatment chain. POM in inflow suspended solids was predominantly composed of reactive, biodegradable compounds which were partly hydrolyzed and mineralized notably at the trickling filter stage. 3D fluorescence spectra collected from aqueous POM extracts confirmed the evolution of organic matter from low-molecular reactive compounds to more complex and stable structures such as humic-like substances. FTIR confirmed the mineralization of POM's reactive constituents along the treatment chain by the decrease in the intensities of the characteristics bands of aliphatic compounds or proteins, and its humification in the sludge deposits through the relative increase of the bands at 1634cm-1 (vC=O) and 1238cm-1 (δC=O and/or δOH). Isotopic ratios δ2H/1H and δ15N/14N were found to be good indicators of POM evolutions. The higher values of δ2H/1H and δ15N/14N ratios measured in sludge deposits as compared to inflow suspended solids were related to POM humification and to microbial processes of POM hydrolysis and mineralization, respectively.
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Affiliation(s)
- M Kania
- Univ Lyon, INSA Lyon, DEEP Laboratory (Déchets Eaux Environnement Pollutions), EA 7429, F-69621 Villeurbanne Cedex, France; SCIRPE, 5 Allée Alban Vistel, 69110 Sainte-Foy-Lès-Lyon, France.
| | - M Gautier
- Univ Lyon, INSA Lyon, DEEP Laboratory (Déchets Eaux Environnement Pollutions), EA 7429, F-69621 Villeurbanne Cedex, France.
| | - Z Ni
- Laboratory for Solid Waste Management and Environment Safety, Ministry of Education of China, Tsinghua University, Beijing 10084, China
| | - E Bonjour
- Univ Lyon, CNRS, Université Claude Bernard Lyon 1, Ens de Lyon, Institut des Sciences Analytiques, UMR 5280, 5 rue de la Doua, 69100 Villeurbanne, France.
| | - R Guégan
- Observatoire des Sciences de l'Univers en région Centre (OSUC), 1 A rue de la Férollerie, 45071 Orléans Cedex 2, France.
| | - P Michel
- SCIRPE, 5 Allée Alban Vistel, 69110 Sainte-Foy-Lès-Lyon, France.
| | - P Jame
- Univ Lyon, CNRS, Université Claude Bernard Lyon 1, Ens de Lyon, Institut des Sciences Analytiques, UMR 5280, 5 rue de la Doua, 69100 Villeurbanne, France.
| | - J Liu
- Laboratory for Solid Waste Management and Environment Safety, Ministry of Education of China, Tsinghua University, Beijing 10084, China.
| | - R Gourdon
- Univ Lyon, INSA Lyon, DEEP Laboratory (Déchets Eaux Environnement Pollutions), EA 7429, F-69621 Villeurbanne Cedex, France.
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Affiliation(s)
- Zhanglin Ni
- Chinese Academy of Forestry, Research Institute of Subtropical Forestry, Fuyang, Zhejiang, China
| | - Zhenchao Chen
- Chinese Academy of Forestry, Research Institute of Subtropical Forestry, Fuyang, Zhejiang, China
| | - Ruiliang Bai
- Shandong Provincial Forestry Department, Management Station of Economic Forest, Jinan, Shandong, China
| | - Fubin Tang
- Chinese Academy of Forestry, Research Institute of Subtropical Forestry, Fuyang, Zhejiang, China
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Narzt M, Nagelreiter I, Bochkov V, Latreille J, Fedorova M, Ni Z, Sialana F, Lubec G, Bilban M, Tschachler E, Grillari J, Gruber F. 630 Multi-omics identify nuclear protein 1 (Nupr1/p8) as central regulator of redox stress mediated by ultraviolet A light. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Li C, Zeng Y, Tao L, Liu S, Ni Z, Huang Q, Wang Q. Meta-analysis of hypertension and osteoporotic fracture risk in women and men. Osteoporos Int 2017; 28:2309-2318. [PMID: 28447105 DOI: 10.1007/s00198-017-4050-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [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: 11/16/2016] [Accepted: 04/10/2017] [Indexed: 10/19/2022]
Abstract
UNLABELLED The present meta-analysis synthesized evidence from 10 articles encompassing 28 independent studies to verify the association between hypertension and osteoporotic fracture risk in women and men. Our results indicate that the risk of osteoporotic fracture among individuals with hypertension was higher than that among individuals without hypertension. INTRODUCTION Epidemiological studies have suggested that hypertension is related to osteoporotic fracture. However, discrepancies exist in the reported findings. In this study, a systematic review of relevant published articles was conducted to verify the association between hypertension and osteoporotic fracture risk in women and men. METHODS PubMed (1953_October 5th, 2016) and Embase (1974_October 5th, 2016) were systematically searched for relevant articles. Odds ratios (ORs) and confidence intervals (CIs) were derived using random effect models. Categorical, subgroup, heterogeneity, publication bias, and meta-regression analyses were conducted. RESULTS We analyzed 10 articles encompassing 28 independent studies, 1,430,431 participants, and 148,048 osteoporotic fracture cases. The risk of osteoporotic fracture among individuals with hypertension was higher (pooled OR = 1.33, 95% CI 1.25-1.40; I 2 = 72.3%, P < 0.001) than that among individuals without hypertension. The association between hypertension and fracture risk was slightly stronger in women (pooled OR = 1.52, 95% CI 1.30-1.79) than in men (pooled OR = 1.35, 95% CI 1.26-1.44). Studies conducted in Asia revealed results that were consistent with those of studies performed in Europe. CONCLUSIONS Hypertension is associated with osteoporotic fracture risk. However, the biological mechanisms underlying the effect of hypertension on osteoporotic fracture remain to be elucidated.
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Affiliation(s)
- C Li
- Department of Epidemiology and Biostatistics, MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Y Zeng
- Department of Epidemiology and Biostatistics, MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - L Tao
- Department of Epidemiology and Biostatistics, MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - S Liu
- Hospital Infection Management Office, PUAI Hospital, Wuhan, 430032, China
| | - Z Ni
- Women and Children Medical Center of Jiang-an District, Wuhan, 430017, China
| | - Q Huang
- Department of Medical Rehabilitation, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Q Wang
- Department of Epidemiology and Biostatistics, MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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Ni Z, Xu H, Wu B. DISPARITIES IN PREVALENCE OF HYPERTENSION ACROSS DIFFERENT POPULATIONS IN CHINA. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Z. Ni
- School of Nursing, Duke University, Durham, North Carolina,
| | - H. Xu
- School of Nursing, Duke University, Durham, North Carolina,
| | - B. Wu
- Rory Meyers College of Nursing, New York University, New York, New York
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41
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Ni Z, Chen Z, Cheng J, Tang F. Simultaneous Determination of Arsenic and Lead in Vegetable Oil by Atomic Fluorescence Spectrometry after Vortex-Assisted Extraction. ANAL LETT 2017. [DOI: 10.1080/00032719.2016.1263643] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Zhanglin Ni
- Quality Testing Center for Non-wood Forest Products, State Forestry Administration (Hangzhou), Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, Zhejiang, China
| | - Zhenchao Chen
- Quality Testing Center for Non-wood Forest Products, State Forestry Administration (Hangzhou), Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, Zhejiang, China
| | - Junyong Cheng
- Non-wood Foresty Institute, Hubei Academy of Forestry, Wuhan, Hubei, China
| | - Fubin Tang
- Quality Testing Center for Non-wood Forest Products, State Forestry Administration (Hangzhou), Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, Zhejiang, China
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Zheng M, Liu R, Ni Z, Yu Z. Efficiency, effectiveness and treatment stability of clear aligners: A systematic review and meta-analysis. Orthod Craniofac Res 2017; 20:127-133. [PMID: 28547915 DOI: 10.1111/ocr.12177] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/25/2017] [Indexed: 11/29/2022]
Abstract
OBJECTIVES The objective of this study was to perform a systematic review of the orthodontic literature with regard to efficiency, effectiveness and stability of treatment outcome with clear aligners compared with treatment with conventional brackets. METHODS An electronic search without time or language restrictions was undertaken in October 2014 in the following electronic databases: Google Scholar, the Cochrane Oral Health Group's Trials Register, Scopus, CENTRAL, MEDLINE via OVID, EMBASE via OVID and Web of Science. We also searched the reference lists of relevant articles. Quality assessment of the included articles was performed. Two authors were responsible for study selection, validity assessment and data extraction. RESULTS Four controlled clinical trials including a total of 252 participants satisfied the inclusion criteria. We grouped the trials into four main comparisons. One randomized controlled trial was classified as level 1B evidence, and three cohort studies were classified as level 2B evidence. Clear aligners appear to have a significant advantage with regard to chair time and treatment duration in mild-to-moderate cases based on several cross-sectional studies. No other differences in stability and occlusal characteristics after treatment were found between the two systems. CONCLUSIONS Despite claims about the effectiveness of clear aligners, evidence is generally lacking. Shortened treatment duration and chair time in mild-to-moderate cases appear to be the only significant effectiveness of clear aligners over conventional systems that are supported by the current evidence.
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Affiliation(s)
- M Zheng
- Department of Orthodontics, Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - R Liu
- Wenzhou Medical University, Wenzhou, China
| | - Z Ni
- Department of Orthodontics, Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Z Yu
- Department of Orthodontics, Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
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Ni Z, Talattof A, Fan J, Tsakalozou E, Sharan S, Sun D, Wen H, Zhao L, Zhang X. Physiologically Based Pharmacokinetic and Absorption Modeling for Osmotic Pump Products. AAPS J 2017; 19:1045-1053. [PMID: 28357656 DOI: 10.1208/s12248-017-0075-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 03/11/2017] [Indexed: 01/07/2023]
Abstract
Physiologically based pharmacokinetic (PBPK) and absorption modeling approaches were employed for oral extended-release (ER) drug products based on an osmotic drug delivery system (osmotic pumps). The purpose was to systemically evaluate the in vivo relevance of in vitro dissolution for this type of formulation. As expected, in vitro dissolution appeared to be generally predictive of in vivo PK profiles, because of the unique feature of this delivery system that the in vitro and in vivo release of osmotic pump drug products is less susceptible to surrounding environment in the gastrointestinal (GI) tract such as pH, hydrodynamic, and food effects. The present study considered BCS (Biopharmaceutics Classification System) class 1, 2, and 3 drug products with half-lives ranging from 2 to greater than 24 h. In some cases, the colonic absorption models needed to be adjusted to account for absorption in the colon. C max (maximum plasma concentration) and AUCt (area under the concentration curve) of the studied drug products were sensitive to changes in colon permeability and segmental GI transit times in a drug product-dependent manner. While improvement of the methodology is still warranted for more precise prediction (e.g., colonic absorption and dynamic movement in the GI tract), the results from the present study further emphasized the advantage of using PBPK modeling in addressing product-specific questions arising from regulatory review and drug development.
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Affiliation(s)
- Zhanglin Ni
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Arjang Talattof
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Jianghong Fan
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Eleftheria Tsakalozou
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Satish Sharan
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Dajun Sun
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Hong Wen
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Liang Zhao
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Xinyuan Zhang
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, US Food and Drug Administration, Silver Spring, Maryland, USA. .,, 10903 New Hampshire Ave., Bldg. 75, Room 4690, Silver Spring, Maryland, 20993, USA.
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Chen H, Ni Z, Jing D, He L, Qiao L, Liu L, Wei X, Jiang M, Tang S, Xu H. Novel stent in the palliation of malignant esophageal strictures: a retrospective study. Dis Esophagus 2017; 30:1-5. [PMID: 26727310 DOI: 10.1111/dote.12446] [Citation(s) in RCA: 3] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The placement of metal stents is often used as a palliative treatment for malignant esophageal stenosis. We designed a novel stent that has been used clinically since 2011, and we therefore performed a retrospective study to compare the therapeutic effects of this novel metal stent to a conventional partially covered metal stent in patients with malignant esophageal strictures. The records of 201 consecutive patients who underwent placement of either the conventional partially covered metal stents (Group A, n = 92) or the new metal stents (Group B, n = 109) in the Endoscopy Center of General Hospital of Chengdu Military Command from October 2008 to March 2013 were reviewed. The median dysphagia score significantly improved in both groups 1 week following stent placement (P < 0.001). No significant differences were observed in success rate (P = 0.910) or the complication rate (P = 0.426) between groups. Six months after stent placement, recurrent dysphagia due to stent migration, tissue ingrowth or overgrowth or food obstruction occurred in 45% and 29% of patients in the conventional stent and new stent groups, respectively. The results of this retrospective study indicate that the new modified self-expandable metal stents (SEMS) is at least as safe and effective as the conventional partially covered SEMS in treatment of malignant esophageal strictures.
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Affiliation(s)
- H Chen
- Department of Digestion, General Hospital of Chengdu Military Command, Chengdu, Sichuan Province, China
| | - Z Ni
- Department of Digestion, General Hospital of Chengdu Military Command, Chengdu, Sichuan Province, China
| | - D Jing
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China
| | - L He
- Department of Anaesthesiology, Children's Hospital of Fudan University, Shanghai, China
| | - L Qiao
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui, PRC
| | - L Liu
- Xuzhou Medical College Graduate Academy, Xuzhou, China
| | - X Wei
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - M Jiang
- Department of Basic Medicine, Institute of Immunology, Third Military Medical University of PLA, Chongqing, China
| | - S Tang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - H Xu
- Department of Biochemistry and Molecular Biology, New York Medical College, Valhalla, New York, USA
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Affiliation(s)
- Chuanyi Ren
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry
| | - Yanping Zhang
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry
| | - Zhanglin Ni
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry
| | - Fubin Tang
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry
| | - Yihua Liu
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry
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Luo ZL, Chen M, Shang XF, Hu F, Ni Z, Cheng P, Ji XF, Wu KR, Zhang XQ. [Direct anterior approach versus posterolateral approach for total hip arthroplasty in the lateral decubitus position]. Zhonghua Yi Xue Za Zhi 2016; 96:2807-2812. [PMID: 27686547 DOI: 10.3760/cma.j.issn.0376-2491.2016.35.009] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the clinical efficacy of the direct anterior approach (DAA) and the posterolateral approach (PLA) for total hip arthroplasty (THA) in the lateral decubitus position. Methods: From July to December, 2014, 104 patients randomly divided into two equal groups of the DAA group and the PLA group underwent unilateral primary THA procedures.All procedures were performed by the same surgeon in the Department of Orthopaedics, the Affiliated Anhui Provincial Hospital of Anhui Medical University.General data, perioperative index, postoperative function and radiological evaluation were recorded and statistically analyzed. Results: The patients had an average follow-up of 14 (range, 10-16) months.No significant differences were detected with respect to the operation time, incision length, preoperative Hb concentration and transfusion rate between two groups (P> 0.05 for all comparisons). However, there were significant differences associated with the intraoperative bleeding, postoperative drainage and postoperative Hb concentration in the two groups(P<0.05 for all comparisons). The DAA group showed significant superior outcomes compared with the PLA group in the Harris hip scores [(83.6±7.1) vs (79.8±6.6), P<0.05], WOMAC[ (28.9±6.1) vs (36.1±6.9), P<0.001], and VAS pain scores[ (2.2±0.9) vs (2.9±1.1), P<0.05]at 1 month after surgery. No differences were seen between the study groups in the evaluation of radiography and the incidence of adverse event (P> 0.05 for all comparisons). Conclusions: Compared with the posterolateral approach, the present study shows the exciting results in patients underwent the DAA THA in the lateral decubitus position at early follow-up.The advantages of THA using the DAA include less operative trauma, alleviation of postoperative pain, and faster postoperative rehabilitation. It is a safe, reliable and effective surgery approach.
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Affiliation(s)
- Z L Luo
- The Department of Orthopaedics, the Affiliated Anhui Provincial Hospital of Anhui Medical University, Hefei 230001, China
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Abstract
In this study, a total of 35 tree nut samples of walnut, pecan, pine seed, hickory nut and torreya were obtained from 5 farm product markets in Hangzhou, China, and investigated for essential (Cr, Mn, Fe, Mo, Cu, Zn, Se and Sr) and toxic (Al, As, Cd and Pb) elements by inductively coupled plasma-mass spectroscopy. Mean elemental concentrations of different tree nuts were in the following ranges: Cr 0.26-0.78 mg kg-1, Mn 42.1-174 mg kg-1, Fe 33.7-43.9 mg kg-1, Mo 0.11-0.48 mg kg-1, Cu 10.3-17.6 mg kg-1, Zn 21.6-56.1 mg kg-1, Se 0.015-0.051 mg kg-1, Al 1.44-37.6 mg kg-1, As 0.0062-0.047 mg kg-1, Cd 0.016-0.18 mg kg-1 and Pb 0.0069-0.029 mg kg-1. The estimated provisional tolerable daily intake of Al, As, Cd and Pb was much lower than the provisional tolerable daily intake.
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Affiliation(s)
- Zhanglin Ni
- a Research Institute of Subtropical Forestry , Chinese Academy of Forestry , Fuyang , Zhejiang , P. R. China
| | - Fubin Tang
- a Research Institute of Subtropical Forestry , Chinese Academy of Forestry , Fuyang , Zhejiang , P. R. China
| | - Qing Yu
- a Research Institute of Subtropical Forestry , Chinese Academy of Forestry , Fuyang , Zhejiang , P. R. China
| | - Yihua Liu
- a Research Institute of Subtropical Forestry , Chinese Academy of Forestry , Fuyang , Zhejiang , P. R. China
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Abstract
MicroRNAs (miRs) are associated with tumor progression in various cancers, such as gastric and hepatic carcinomas, and lung cancer. miR-301a is overexpressed and displays oncogenic activity in cancers. We investigated the biological involvement of miR-301a in osteosarcoma (OS). Quantitative real-time polymerase chain reaction (qRT-PCR) was used to analyze expression levels of miR-301a in 24 OS and matched adjacent non-tumor tissues. A miR-301a mimic was transferred into OS cell lines U-2 OS and MG-63 to upregulate miR-301a. The effects of miR-301a were investigated by examining cell proliferation, migration, and the cell cycle. The miR-301 target was predicted by TargetScan and confirmed by western blotting and qRT-PCR. The expression of miR-301a was significantly higher in OS tissues compared with the matched adjacent non-tumor tissues (0.959 ± 0.39 vs 3.9516 ± 1.18). Upregulated miR-301a significantly increased proliferation at 48 and 72 h compared to the negative control (U-2 OS: 2.11 ± 0.21 vs 2.88 ± 0.24; 2.70 ± 0.26 vs 3.71 ± 0.24; MG-63: 2.19 ± 0.20 vs 3.19 ± 0.22; 3.1 ± 0.25 vs 4.01 ± 0.27) and migration capability (U-2 OS: 100 ± 20.19 vs 150.68 ± 32.83; MG-63: 100 ± 17.20 vs 133.35 ± 26.26), and decreased apoptosis in both U-2 OS (10.87 ± 2.53 vs 4.01 ± 2.23) and MG-63 (15.26 ± 2.15 vs 8.25 ± 3.07). The cell cycle studies revealed that miR-301a caused an increase of the G2 population in U-2 OS (38.6 ± 6.58 vs 47.2 ± 7.27) and MG-63 (44.01 ± 5.28 vs 57.9 ± 4.25). Additional experiments indicated that CDC14A was upregulated by miR-301a (0.63 ± 0.06 vs 0.98 ± 0.06; 1.49 ± 0.25 vs 2.99 ± 0.14). Overexpressed miR-301a may increase CDC14A expression and promote cell proliferation and migration in OS cells. Therefore, miR- 301a may be useful for osteosarcoma diagnosis and therapy.
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Affiliation(s)
- Z Ni
- Department of Osteology, Anhui Provincial Hospital, Hefei, China
| | - X F Shang
- Department of Osteology, Anhui Provincial Hospital, Hefei, China
| | - Y F Wang
- Department of Osteology, Anhui Provincial Hospital, Hefei, China
| | - Y J Sun
- Department of Osteology, Anhui Provincial Hospital, Hefei, China
| | - D J Fu
- Department of Osteology, Anhui Provincial Hospital, Hefei, China
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Ni Z, Yu Q, Liu Y, Tang F. Identification of Geographical Origin of Honeysuckle (Lonicera Japonica Thunb) by Discriminant Analysis Using Rare Earth Elements. ANAL LETT 2016. [DOI: 10.1080/00032719.2016.1141212] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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