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Chen J, Tian J, Feng N, Ning L, Wang D, Zhao B, Guo T, Song J, Rojas OJ. Monodispersed Renewable Particles by Cascade and Density Gradient Size Fractionation to Advance Lignin Nanotechnologies. Small 2024:e2309756. [PMID: 38602191 DOI: 10.1002/smll.202309756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 03/26/2024] [Indexed: 04/12/2024]
Abstract
Control over particle size and shape heterogeneity is highly relevant to the design of photonic coatings and supracolloidal assemblies. Most developments in the area have relied on mineral and petroleum-derived polymers that achieve well-defined chemical and dimensional characteristics. Unfortunately, it is challenging to attain such control when considering renewable nanoparticles. Herein, a pathway toward selectable biobased particle size and physicochemical profiles is proposed. Specifically, lignin is fractionated, a widely available heterogeneous polymer that can be dissolved in aqueous solution, to obtain a variety of monodispersed particle fractions. A two-stage cascade and density gradient centrifugation that relieves the need for solvent pre-extraction or other pretreatments but achieves particle bins of uniform size (~60 to 860 nm and polydispersity, PDI<0.06, dynamic light scattering) along with characteristic surface chemical features is introduced. It is found that the properties and associated colloidal behavior of the particles are suitably classified in distinctive size populations, namely, i) nanoscale (50-100 nm), ii) photonic (100-300 nm) and iii) near-micron (300-1000 nm). The strong correlation that exists between size and physicochemical characteristics (molar mass, surface charge, bonding and functional groups, among others) is introduced as a powerful pathway to identify nanotechnological uses that benefit from the functionality and cost-effectiveness of biogenic particles.
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Affiliation(s)
- Jingqian Chen
- Bioproducts Institute, Department of Chemical and Biological Engineering, The University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Jing Tian
- Bioproducts Institute, Department of Chemical and Biological Engineering, The University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing, 210037, China
| | - Nianjie Feng
- Bioproducts Institute, Department of Chemical and Biological Engineering, The University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada
- School of Material Science and Chemical Engineering, Hubei University of Technology, Wuhan, 430068, China
| | - Like Ning
- Bioproducts Institute, Department of Chemical and Biological Engineering, The University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada
- Department of Cell Biology, School of Basic Medical Sciences, Nanjing Medical University, Department of Neurosurgery, the affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, Jiangsu, 211166, China
| | - Dong Wang
- Bioproducts Institute, Department of Chemical and Biological Engineering, The University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada
- Key Laboratory of Bio-based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin, 150040, China
| | - Bin Zhao
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Espoo, FI-02150, Finland
| | - Tianyu Guo
- Bioproducts Institute, Department of Chemical and Biological Engineering, The University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Junlong Song
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing, 210037, China
| | - Orlando J Rojas
- Bioproducts Institute, Department of Chemical and Biological Engineering, The University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1, Canada
- Department of Wood Science, University of British Columbia, 2424 Main Mall, Vancouver, BC, V6T 1Z4, Canada
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Chen X, Fazel Anvari-Yazdi A, Duan X, Zimmerling A, Gharraei R, Sharma N, Sweilem S, Ning L. Biomaterials / bioinks and extrusion bioprinting. Bioact Mater 2023; 28:511-536. [PMID: 37435177 PMCID: PMC10331419 DOI: 10.1016/j.bioactmat.2023.06.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 05/19/2023] [Accepted: 06/08/2023] [Indexed: 07/13/2023] Open
Abstract
Bioinks are formulations of biomaterials and living cells, sometimes with growth factors or other biomolecules, while extrusion bioprinting is an emerging technique to apply or deposit these bioinks or biomaterial solutions to create three-dimensional (3D) constructs with architectures and mechanical/biological properties that mimic those of native human tissue or organs. Printed constructs have found wide applications in tissue engineering for repairing or treating tissue/organ injuries, as well as in vitro tissue modelling for testing or validating newly developed therapeutics and vaccines prior to their use in humans. Successful printing of constructs and their subsequent applications rely on the properties of the formulated bioinks, including the rheological, mechanical, and biological properties, as well as the printing process. This article critically reviews the latest developments in bioinks and biomaterial solutions for extrusion bioprinting, focusing on bioink synthesis and characterization, as well as the influence of bioink properties on the printing process. Key issues and challenges are also discussed along with recommendations for future research.
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Affiliation(s)
- X.B. Chen
- Department of Mechanical Engineering, University of Saskatchewan, 57 Campus Dr, S7K 5A9, Saskatoon, Canada
- Division of Biomedical Engineering, University of Saskatchewan, 57 Campus Dr, Saskatoon, S7K 5A9, Canada
| | - A. Fazel Anvari-Yazdi
- Division of Biomedical Engineering, University of Saskatchewan, 57 Campus Dr, Saskatoon, S7K 5A9, Canada
| | - X. Duan
- Division of Biomedical Engineering, University of Saskatchewan, 57 Campus Dr, Saskatoon, S7K 5A9, Canada
| | - A. Zimmerling
- Division of Biomedical Engineering, University of Saskatchewan, 57 Campus Dr, Saskatoon, S7K 5A9, Canada
| | - R. Gharraei
- Division of Biomedical Engineering, University of Saskatchewan, 57 Campus Dr, Saskatoon, S7K 5A9, Canada
| | - N.K. Sharma
- Department of Mechanical Engineering, University of Saskatchewan, 57 Campus Dr, S7K 5A9, Saskatoon, Canada
| | - S. Sweilem
- Department of Mechanical Engineering, Cleveland State University, Cleveland, OH, 44115, USA
| | - L. Ning
- Department of Mechanical Engineering, Cleveland State University, Cleveland, OH, 44115, USA
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Zhang X, Ning L, Wu H, Yang S, Hu Z, Wang W, Cao Y, Xin H, You C, Lin F. Targeting CDK4/6 in glioblastoma via in situ injection of a cellulose-based hydrogel. Nanoscale 2023; 15:12518-12529. [PMID: 37278298 DOI: 10.1039/d3nr00378g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Despite aggressive treatments, including surgery, chemotherapy and radiotherapy, the prognosis of glioblastoma (GBM) remains poor, and tumor recurrence is inevitable. The FDA-approved CDK4/6 inhibitor palbociclib (PB) showed interesting anti-GBM effects, but its brain penetration is limited by the blood-brain barrier. The aim of this project is to find whether the cellulose-based hydrogel via in situ injection could provide an alternative route to PB brain delivery and generate sufficient drug exposure in orthotopic GBM. In brief, PB was encapsulated in a cellulose nanocrystal network structure crosslinked by polydopamine via divalent Cu2+ and hexadecylamine. The formed hydrogel (PB@PH/Cu-CNCs) exhibited sustained drug retention and acid-responsive network de-polymerization for controlled release in vivo. Specifically, the released Cu2+ catalyzed a Fenton-like reaction to generate reactive oxygen species (ROS), which was further enhanced by PB, and consequently, irreversible senescence and apoptosis were induced in GBM cells. Finally, PB@PH/Cu-CNCs demonstrated a more potent anti-GBM effect than those treated with free PB or PH/Cu-CNCs (drug-free hydrogel) in cultured cells or in an orthotopic glioma model. These results prove that the injection of the PB-loaded hydrogel in situ is an effective strategy to deliver the CDK4/6 inhibitor into the brain and its anti-GBM effect can be further enhanced by combining Cu2+-mediated Fenton-like reaction.
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Affiliation(s)
- Xia Zhang
- Department of Cell Biology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, Jiangsu, China.
- Department of Central Laboratory, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Like Ning
- Department of Cell Biology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, Jiangsu, China.
| | - Hongshuai Wu
- Department of Central Laboratory, The Affiliated Jiangyin Hospital of Nantong University, Jiangyin, Jiangsu, China
| | - Suisui Yang
- Department of Cell Biology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, Jiangsu, China.
| | - Ziyi Hu
- Department of Cell Biology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, Jiangsu, China.
| | - Wenhong Wang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, Zhejiang, China
| | - Yuandong Cao
- Department of Radiation Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Hongliang Xin
- Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, China.
| | - Chaoqun You
- Jiangsu Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Nanjing Forestry University, Nanjing, Jiangsu, China.
| | - Fan Lin
- Department of Cell Biology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, Jiangsu, China.
- Institute for Brain Tumors & Key Laboratory of Rare Metabolic Diseases, Nanjing Medical University, Nanjing, Jiangsu, China
- Department of Gastroenterology, The First Affiliated Hospital, and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan, China
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Wang M, Rojas OJ, Ning L, Li Y, Niu X, Shi X, Qi H. Liquid metal and Mxene enable self-healing soft electronics based on double networks of bacterial cellulose hydrogels. Carbohydr Polym 2022; 301:120330. [DOI: 10.1016/j.carbpol.2022.120330] [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] [Received: 09/12/2022] [Revised: 10/21/2022] [Accepted: 11/07/2022] [Indexed: 11/13/2022]
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Ning L, Jia Y, Zhao X, Tang R, Wang F, You C. Nanocellulose-based drug carriers: Functional design, controllable synthesis, and therapeutic applications. Int J Biol Macromol 2022; 222:1500-1510. [PMID: 36195234 DOI: 10.1016/j.ijbiomac.2022.09.266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/20/2022] [Accepted: 09/28/2022] [Indexed: 11/18/2022]
Abstract
With rising living standards and environmental awareness, materials-oriented chemical engineering has increasingly transitioned from traditional rough models to more resource-saving and eco-friendly models, providing an avenue for bio-based materials in the drug carrier field. Because of its excellent physical and chemical properties, including high specific surface area, abundant accessible hydroxyl groups, biocompatibility, and degradability, nanocellulose (NC) is an emerging bio-based material that has been widely exploited as biomedical materials. The modification techniques of NC, as well as advancements in the design and applications of drug carriers, were primarily discussed in this study. First, the NC modification methods are described; second, the applications of NC and its derivatives as drug carriers are summarized, focusing on NC-based carrier models, types of loaded therapeutic agents, and controlled release stimulators; and finally, the current challenges of NC in the drug carrier field and the directions of future research are also discussed.
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Affiliation(s)
- Like Ning
- Jiangsu Co-Innovation Centre of Efficient Processing and Utilization of Forest Resources, Jiangsu Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Yuxin Jia
- Jiangsu Co-Innovation Centre of Efficient Processing and Utilization of Forest Resources, Jiangsu Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Xinxu Zhao
- Jiangsu Co-Innovation Centre of Efficient Processing and Utilization of Forest Resources, Jiangsu Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Ruoxu Tang
- Jiangsu Co-Innovation Centre of Efficient Processing and Utilization of Forest Resources, Jiangsu Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Fei Wang
- Jiangsu Co-Innovation Centre of Efficient Processing and Utilization of Forest Resources, Jiangsu Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Chaoqun You
- Jiangsu Co-Innovation Centre of Efficient Processing and Utilization of Forest Resources, Jiangsu Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China.
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6
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You C, Ning L, Zhang Z, Wu H, Qu Q, Wang F, Xiong R, Huang C. Toxic reactive oxygen species enhanced chemodynamic therapy by copper metal-nanocellulose based nanocatalysts. Carbohydr Polym 2022; 289:119432. [DOI: 10.1016/j.carbpol.2022.119432] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 03/15/2022] [Accepted: 03/28/2022] [Indexed: 12/12/2022]
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Wu DO H, Rong H, Ying Z, Jinjin F, Ning L, Xiao Y. POS-097 MECHANISM OF LOW POTASSIUM AND ITS EFFECT ON INTESTINAL BACTERIAL TRANSLOCATION. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.107] [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: 11/28/2022] Open
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8
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Li YB, Fan XY, Ning L, Li SK, Yu ZP. microRNA-486-5p functions as a tumor suppressor in gastric carcinoma via directly targeting KDM5B. J BIOL REG HOMEOS AG 2021; 35:1. [PMID: 34327974 DOI: 10.23812/21-si1-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Y B Li
- Department of Emergency Surgery, The Affiliated Hospital of Qingdao University, Qingdao, P.R. China
| | - X Y Fan
- Divison of Medical Affairs of Affiliated Hospital of Qingdao University, Qingdao, P.R. China
| | - L Ning
- Department of Emergency Surgery, The Affiliated Hospital of Qingdao University, Qingdao, P.R. China
| | - S K Li
- Department of Emergency Surgery, The Affiliated Hospital of Qingdao University, Qingdao, P.R. China
| | - Z P Yu
- Department of Emergency Surgery, The Affiliated Hospital of Qingdao University, Qingdao, P.R. China
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9
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You C, Ning L, Wu H, Huang C, Wang F. A biocompatible and pH-responsive nanohydrogel based on cellulose nanocrystal for enhanced toxic reactive oxygen species generation. Carbohydr Polym 2021; 258:117685. [DOI: 10.1016/j.carbpol.2021.117685] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 01/13/2021] [Accepted: 01/15/2021] [Indexed: 01/03/2023]
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10
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Su D, Ning L, Zhou R, Shen A. PBI3 The Economic Evaluation Of Clopidogrel In Antiplatelet Therapy Guided By CYP2C19 Gene Polymorphism In The Treatment Of Patients With Coronary Heart Disease. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.011] [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: 10/23/2022]
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Li SK, Li CQ, Li YB, Ning L, Yu ZP, Wang PG, Zhou XB, Ren JA. [Clinical characteristics of recurrent appendicitis]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:786-790. [PMID: 32810951 DOI: 10.3760/cma.j.cn.441530-20200722-00435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze clinical characteristics of recurrent appendicitis. Methods: A retrospective cohort study was carried out. Clinical data of patients who underwent appendectomy due to acute appendicitis confirmed by pathology in the Affiliated Hospital of Qingdao University from January 2011 to December 2015 were analyzed retrospectively. Exclusion criteria: (1) age of less than 18 years;(2) chronic appendicitis; (3) periappendiceal abscess; (4) appendiceal mucocele or mucinous neoplasms; (5) appendiceal neuroendocrine tumors or cancers; (6) appendicitis during pregnancy; (7) concurrent AIDS, hematological disease, autoimmune disease, inflammatory bowel disease or advanced cancer; (8) other simultaneous surgery. A total of 373 patients were enrolled the study. These patients were divided into the recurrent group (133 cases) and the first episode group (240 cases) according to the previous history of antibiotic therapy for acute appendicitis. The prevalence of recurrent appendicitis was calculated, and the clinical characteristics were analyzed, including gender, age, comorbidities and preoperative CT images. Results: Of 373 patients, 209 were male and 164 were female, with a median age of 42 (18 to 88) years. Median recurrent time of the recurrent group was 4 (1 to 60) months. Compared to the first episode group, the recurrent group had higher proportion of age <50 years [71.4% (95/133) vs. 57.5% (138/240), χ(2)=7.081, P=0.008], higher proportion of concurrent diabetes [13.5% (18/133) vs. 5.4% (13/240), χ(2)=7.399, P=0.007], shorter onset time [(41.7±13.6) hours vs. (59.4±56.2) hours, t=-3.286, P=0.001], lower proportion of abdominal tension and rebound pain [57.9% (77/133) vs. 66.7% (160/240), χ(2)=5.065, P=0.024], lower score of modified Alvarado score [(5.6±1.9) point vs. (6.1±1.9) point, t=-2.417, P=0.016], lower WBC count [(10.5±4.6) ×10(9)/L vs. (11.5±4.5)×10(9)/L, t=-1.190, P=0.047], higher percentage of lymphocyte [(19.4±14.7)% vs. (16.1±13.3)%, t=2.069, P=0.039]. In the recurrent group, ratio of length of removed appendix ≥7 cm was higher as compared with the first episode group [44.4% (59/133) vs. 32.9% (79/240), χ(2)=4.808, P=0.028], while the ratio of complicated appendicitis was significantly lower [8.3% (11/133) vs. 22.9% (55/240), χ(2)=10.823, P=0.001]. CT images were available in 129 patients, intraluminal appendicoliths was found in 19 of 50 patients (38%) in the recurrent group, while in 16 of 79 patients (20.3%) in the first episode group, and there was statistically significant difference between the two groups (χ(2)=4.880, P=0.027). Conclusions: Clinical characteristics of recurrent acute appendicitis include age less than 50 years, concurrent diabetes, short onset time, less abdominal tension or rebound pain, low modified Alvarado score, low WBC count, high percentage of lymphocyte, appendix length longer than 7 cm, non-complicated appendicitis and intraluminal appendicoliths.
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Affiliation(s)
- S K Li
- Department of Emergency Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - C Q Li
- Department of Emergency Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - Y B Li
- Department of Emergency Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - L Ning
- Department of Emergency Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - Z P Yu
- Department of Emergency Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - P G Wang
- Department of Emergency Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - X B Zhou
- Department of Epidemiology and Health Statistics, School of Public Health of Qingdao University, Qingdao, Shandong 266021, China
| | - J A Ren
- Department of General Surgery, Jinling Hospital, Nanjing University Medical School, Nanjing, Jiangsu 210002, China
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You C, Wu H, Zhang R, Liu Y, Ning L, Gao Z, Sun B, Wang F. Dendritic Mesoporous Organosilica Nanoparticles: A pH-Triggered Autocatalytic Fenton Reaction System with Self-supplied H 2O 2 for Generation of High Levels of Reactive Oxygen Species. Langmuir 2020; 36:5262-5270. [PMID: 32338925 DOI: 10.1021/acs.langmuir.0c00603] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Dendritic mesoporous silica nanoparticles represent a new biomedical application platform due to their special central radial pore structure for the loading of drugs and functional modification. Herein, we report functionalized dendritic mesoporous organosilica nanoparticles (DMONs), a pH-triggered Fenton reaction generator (TA/Fe@GOD@DMONs), incorporating natural glucose oxidase (GOD) in the DMONs with tannic acid (TA) grafted using Fe3+ on the surface, that have been designed and constructed for efficient tumor ablation with self-supplied H2O2 and accelerated conversion of Fe3+/Fe2+ by TA. In view of the deficiency of endogenous H2O2, the self-supply through the TA/Fe@GOD@DMONs platform represented a high-yielding source of peroxygen. Furthermore, the production of Fe2+ induced by TA greatly improved the efficiency of the Fenton reaction resulting in significant tumor inhibition. This new design represents as novel paradigm for the development of autocatalytic Fenton nanosystems for effective treatment of tumors.
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Affiliation(s)
- Chaoqun You
- College of Chemical Engineering, Nanjing Forestry University, Jiangsu Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing 210037, P.R. China
| | - Hongshuai Wu
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210089, P.R. China
| | - Rui Zhang
- Department of Ophthalmology, Zhongda Hospital, Southeast University, Nanjing 210009, P.R. China
| | - Yuqi Liu
- School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai, 201418, P.R. China
| | - Like Ning
- College of Chemical Engineering, Nanjing Forestry University, Jiangsu Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing 210037, P.R. China
| | - Zhiguo Gao
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210089, P.R. China
| | - Baiwang Sun
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210089, P.R. China
| | - Fei Wang
- College of Chemical Engineering, Nanjing Forestry University, Jiangsu Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing 210037, P.R. China
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You C, Li Y, Dong Y, Ning L, Zhang Y, Yao L, Wang F. Low-Temperature Trigger Nitric Oxide Nanogenerators for Enhanced Mild Photothermal Therapy. ACS Biomater Sci Eng 2020; 6:1535-1542. [PMID: 33455391 DOI: 10.1021/acsbiomaterials.9b01771] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Surmounting the restriction issues of nitric oxide (NO) delivery to realize their precious on-demand release is highly beneficial for the widespread deployment of gas therapy for application in biomedicine. Herein, by employing core-shell structure Au@SiO2 nanomaterials with high photothermal performance, a novel strategy was proposed by integrating photothermal conversion nanomaterials and heat-triggered NO donors (RSNO) into a nanoplatform, which achieved photothermal therapy (PTT)-enhanced NO gas therapy under near-infrared (NIR) radiation. Specifically, 2-phenylethynesulfonamide (PES), an inhibitor of heat shock protein 70 (HSP-70), was loaded into the NO nanogenerators to realize effective low-temperature (∼45 °C) PTT. The obtained results showed that the near-infrared radiation (NIR) mediated mild PTT and gas therapy by releasing NO showed a substantially improved synergistic effect based on in vitro and in vivo results in breast cancer (MCF-7) models. Our study points out a strategy to realize mild photothermal therapy by inhibiting the expression of HSP-70 and simultaneously providing an avenue to achieve controllable release of NO. More important, this research highlights the great potential of multifunctional therapeutic agents in the synergistic treatment of cancer.
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Affiliation(s)
- Chaoqun You
- College of Chemical Engineering, Nanjing Forestry University; Jiangsu Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing 210037, PR China
| | - Yaojia Li
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210089, PR China
| | - Yixin Dong
- College of Chemical Engineering, Nanjing Forestry University; Jiangsu Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing 210037, PR China
| | - Like Ning
- College of Chemical Engineering, Nanjing Forestry University; Jiangsu Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing 210037, PR China
| | - Yu Zhang
- College of Chemical Engineering, Nanjing Forestry University; Jiangsu Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing 210037, PR China
| | - Liyang Yao
- College of Chemical Engineering, Nanjing Forestry University; Jiangsu Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing 210037, PR China
| | - Fei Wang
- College of Chemical Engineering, Nanjing Forestry University; Jiangsu Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing 210037, PR China
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Zhang YN, Jin C, Ning L, Gong S, Xiao Y, Yu GL. [Clinical characteristics and related factors of somatization symptoms in outpatients with psychiatric disorders of the department of cardiology in general hospitals]. Zhonghua Xin Xue Guan Bing Za Zhi 2019; 47:907-912. [PMID: 31744281 DOI: 10.3760/cma.j.issn.0253-3758.2019.11.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the clinical characteristics and related factors of somatization symptoms in outpatients with psychiatric disorders of the cardiology department in general hospital. Methods: Cross-sectional survey method was used in this study. From August 2017 to September 2018, 508 outpatients of our department with suspected mental disorders, who complained of physical discomfort and screened by the "Three Questions" method recommended by the Chinese Expert Consensus on Psychological Prescriptions of Cardiovascular Patients in 2014, were consecutively included. General Anxiety Disorder-7 (GAD-7), Patient Health Questionnaire (PHQ-9), Patient Health Questionnaire-15 (PHQ-15) and self-made general demographic questionnaire (including age, sex, marital status, educational level, occupation, duration of disease, clinical diagnosis and the process of medical treatment for the main somatic symptoms in recent one year) were used to investigate these patients, under the assistance of unified training psychological consultants. The detection rate of anxiety and depression, the degree and distribution of somatization symptoms in outpatients with mental disorders were analyzed, and the related factors affecting the occurrence of somatization symptoms were screened by multivariate logistic regression. Results: The selected patients were (51.3±10.1) years old, of which 37.8% (192/508) were males and 62.2% (316/508) were females. The total detection rate of anxiety/depression was 86.8% (441/508), and the detection rate of somatization symptoms was 93.1% (473/508). The number of positive symptom items in PHQ-15 was 8.0±2.7, and the detection rate of anxiety/depression was 78.6% (372/473) in patients with somatization symptoms. There were significant differences in the proportion of women, the average number of outpatient visits and hospitalizations in the past one year, GAD-7 score and PHQ-9 score among the patients with mild, moderate and severe somatization symptoms (all P<0.05). PHQ-15 score was positively correlated with GAD-7 score (r=0.524 5, P<0.001) and PHQ-9 score (r=0.574 9, P<0.001) in patients with somatization symptoms. Stepwise logistic regression analysis showed that total scores of PHQ-9 (OR=8.020, 95%CI 3.470-18.930, P<0.001) and GAD-7 (OR=6.526, 95%CI 2.903-13.045, P<0.001) and female (OR=4.440, 95%CI 1.059-9.073, P=0.011) were related factors of somatizations. Conclusions: The incidence of somatization symptoms is high in patients with psychological disorders in outpatients of cardiology department in general hospital. Anxiety, depression and gender are the main related risk factors of somatization symptoms in this patient cohort. Degree of anxiety and depression increased in proportion to the severity of somatization symptoms. Anxiety, depression and female is related to somatization symptoms.
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Affiliation(s)
- Y N Zhang
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - C Jin
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - L Ning
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - S Gong
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Y Xiao
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - G L Yu
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha 410008, China
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You C, Wu H, Gao Z, Chen F, Ning L, Zhang Y, Dong Y, Sun B, Wang F. Enhanced Reactive Oxygen Species Levels by an Active Benzothiazole Complex-Mediated Fenton Reaction for Highly Effective Antitumor Therapy. Mol Pharm 2019; 16:4929-4939. [DOI: 10.1021/acs.molpharmaceut.9b00819] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Chaoqun You
- College of Chemical Engineering, Nanjing Forestry University; Jiangsu Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing 210037, People’s Republic of China
| | - Hongshuai Wu
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210089, People’s Republic of China
| | - Zhiguo Gao
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210089, People’s Republic of China
| | - Fanghui Chen
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210089, People’s Republic of China
| | - Like Ning
- College of Chemical Engineering, Nanjing Forestry University; Jiangsu Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing 210037, People’s Republic of China
| | - Yu Zhang
- College of Chemical Engineering, Nanjing Forestry University; Jiangsu Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing 210037, People’s Republic of China
| | - Yixin Dong
- College of Chemical Engineering, Nanjing Forestry University; Jiangsu Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing 210037, People’s Republic of China
| | - Baiwang Sun
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210089, People’s Republic of China
| | - Fei Wang
- College of Chemical Engineering, Nanjing Forestry University; Jiangsu Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing 210037, People’s Republic of China
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Si W, Cai Y, Liu J, Shen J, Chen Q, Chen C, Ning L. Investigating the role of colloids on the distribution of bisphenol analogues in surface water from an ecological demonstration area, China. Sci Total Environ 2019; 673:699-707. [PMID: 31003097 DOI: 10.1016/j.scitotenv.2019.04.142] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 04/09/2019] [Accepted: 04/10/2019] [Indexed: 06/09/2023]
Abstract
Owing to the widespread use of bisphenol analogues (BPs) as substitutes for bisphenol A (BPA), the presence of BPs in multiple environments is of increasing concern. However, there is a limited understanding of the effects of colloids on the distribution and risk assessment of BPs traditionally dissolved in surface water. In this study, seven BPs were investigated in both the truly dissolved (<5 kDa) and colloidal (5 kDa to 1 μm) phases with water, with mean concentrations in the range of 71.6-671 ng/L and 5.84-76.6 ng/L, respectively. BPA and bisphenol S (BPS) were the dominant BPs in both phases, but a clear positive correlation was found between the adsorption contribution proportions of colloids to BPs and their hydrophobicity (octanol-water partition coefficient). The colloids contributed 50.4% of bisphenol AF, 33.4% of tetrabromobisphenol A, 25.2% of bisphenol F, 10.9% of BPA and 9.50% of BPS in the traditionally dissolved phase (<1 μm), which suggests that colloids play an important role in regulating the transformation and transportation of BPs in aquatic environments. Based on BP concentrations in the truly dissolved phase, only moderate risk levels for BPs towards algae, daphnia and fish were posed, and no oestrogenic risk existed in the study area.
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Affiliation(s)
- Wei Si
- Department of Hydrology and Water Resources, Hohai University, Nanjing, Jiangsu, China; Business School of Hohai University, Nanjing 210098, China
| | - Yuanfei Cai
- Key Laboratory of Integrated Regulation and Resources Development, College of Environment, Hohai University, Nanjing 210098, China; Wanjiang University of Technology, Ma'anshan 243031, China
| | - Jianchao Liu
- Key Laboratory of Integrated Regulation and Resources Development, College of Environment, Hohai University, Nanjing 210098, China.
| | - Jie Shen
- Key Laboratory of Integrated Regulation and Resources Development, College of Environment, Hohai University, Nanjing 210098, China
| | - Qing Chen
- Suzhou Litree Ultra-Filtration Membrane Technology Co. Ltd., China
| | - Chen Chen
- Suzhou Litree Ultra-Filtration Membrane Technology Co. Ltd., China
| | - Like Ning
- Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
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You C, Gao Z, Wu H, Sun K, Ning L, Lin F, Sun B, Wang F. Reactive oxygen species mediated theranostics using a Fenton reaction activable lipo-polymersome. J Mater Chem B 2018; 7:314-323. [PMID: 32254556 DOI: 10.1039/c8tb02947d] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Recently, reactive oxygen species (ROS)-induced apoptosis has been widely studied by researchers through various means. Among them, the singlet oxygen produced by the Fenton reaction is particularly effective in killing tumor cells. Although photodynamic therapy (PDT) takes advantage of the spatial-temporal control of ROS production, the design of the Fenton reaction in an ingenious way is still a question worth exploring. Herein, we have designed and prepared a succinic peroxide-filled Fenton reaction activable Pt/Fe3O4@SP-PLGA lipo-polymersome that displays ROS mediated chemodynamic therapy (CDT). The therapeutic element, ˙OH, is generated under NIR irradiation/tumor acidic pH environment through engineering the reaction between succinic peroxide (SP) and iron oxide. Instead of using single endogenous H2O2 or even encapsulation, the conjugation with SP in the Pt/Fe3O4@SP-PLGA lipo-polymersome provides a more stable, high-yielding peroxygen source. The results also showed that after the addition of cisplatin, the amount of ROS production increased significantly. The proof-of-concept design of the Fenton reaction activable Pt/Fe3O4@SP-PLGA lipo-polymersome with enhanced ROS-generation characteristics provides a general approach to afford potent ROS-mediated cancer therapy.
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Affiliation(s)
- Chaoqun You
- College of Chemical Engineering, Nanjing Forestry University, Jiangsu Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing 210037, P. R. China.
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Song LJ, Wang LL, Ning L, Fan SW, Zhao X, Chen YL, Li ZZ, Hu ZA. A modification and validation of quantitative morphometry classification system for osteoporotic vertebral compressive fractures in mainland Chinese. Osteoporos Int 2018; 29:2495-2504. [PMID: 30030586 DOI: 10.1007/s00198-018-4641-3] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 07/11/2018] [Indexed: 02/07/2023]
Abstract
UNLABELLED This study described a modified quantitative morphometry (mQM) system adapted to specific reference values for Mainland Chinese population. The mQM system is validated using the Genant Semiquantative system and is sensitive for detecting vertebral height changes and predicting cement leakage after percutaneous kyphoplasty (PKP) in patients with osteoporotic vertebral compressive fracture (OVCF). INTRODUCTION OVCF is a manifestation of osteoporosis. To improve clinical management of osteoporosis, the quantitative morphometry (QM) system has been widely used for the early diagnosis and precise classification of OVCF in developed countries. Here, we present an mQM system and validated its use in detecting OVCF in Mainland Chinese. METHODS Using our mQM system, the pre- and post-operative values of vertebral heights were measured and evaluated in 309 Mainland Chinese who received percutaneous kyphoplasty (PKP) as OVCF treatment. Measurements and classification of fractures from the mQM system were validated by comparing to values obtained by the Genant semiquantative (SQ) method. Moreover, we evaluated the sensitivity of the mQM system by its ability to detect restoration of vertebral heights and predict cement leakage after PKP. RESULTS The five classification of fractures, No deformity (ND), anterior wedge (AW), posterior wedge (PW), biconcavity (BC), and compression (CP), evaluated by the mQM method shared similar distribution characteristics compared to those obtained by the SQ method. In addition, mQM evaluation showed that the vertebra height of all fracture types showed significant restoration after PKP. The incidence of cement leakage was most common in CP (37.5%), followed by AW (31.6%), BC (26.5%), ND (23.7%), and PW (0.0%). CONCLUSIONS Our mQM system is suitable for classification of fractures, detection of vertebral height restoration, and correlation of cement leakage after PKP in Mainland Chinese population.
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Affiliation(s)
- L-J Song
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, China
- Sir Run Run Shaw Institute of Clinical Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, China
| | - L-L Wang
- School of Statistics and Mathematics, Zhejiang Gongshang University, Hangzhou, China
| | - L Ning
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, China
- Sir Run Run Shaw Institute of Clinical Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, China
| | - S-W Fan
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, China
- Sir Run Run Shaw Institute of Clinical Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, China
| | - X Zhao
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, China
- Sir Run Run Shaw Institute of Clinical Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, China
| | - Y-L Chen
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, China
- Sir Run Run Shaw Institute of Clinical Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, China
| | - Z-Z Li
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, China
- Sir Run Run Shaw Institute of Clinical Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, China
| | - Z-A Hu
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, China.
- Sir Run Run Shaw Institute of Clinical Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, China.
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Karmacharya S, Gagoski B, Ning L, Vyas R, Cheng HH, Soul J, Newberger JW, Shenton ME, Rathi Y, Grant PE. Advanced diffusion imaging for assessing normal white matter development in neonates and characterizing aberrant development in congenital heart disease. Neuroimage Clin 2018; 19:360-373. [PMID: 30013919 PMCID: PMC6044185 DOI: 10.1016/j.nicl.2018.04.032] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 04/23/2018] [Accepted: 04/25/2018] [Indexed: 12/21/2022]
Abstract
Background Elucidating developmental trajectories of white matter (WM) microstructure is critically important for understanding normal development and regional vulnerabilities in several brain disorders. Diffusion Weighted Imaging (DWI) is currently the method of choice for in-vivo white matter assessment. A majority of neonatal studies use the standard Diffusion Tensor Imaging (DTI) model although more advanced models such as the Neurite Orientation Dispersion and Density Imaging (NODDI) model and the Gaussian Mixture Model (GMM) have been used in adult population. In this study, we compare the ability of these three diffusion models to detect regional white matter maturation in typically developing control (TDC) neonates and regional abnormalities in neonates with congenital heart disease (CHD). Methods Multiple b-value diffusion Magnetic Resonance Imaging (dMRI) data were acquired from TDC neonates (N = 16) at 38 to 47 gestational weeks (GW) and CHD neonates (N = 19) aged 37 weeks to 41 weeks. Measures calculated from the diffusion signal included not only Mean Diffusivity (MD) and Fractional Anisotropy (FA) derived from the standard DTI model, but also three advanced diffusion measures, namely, the fiber Orientation Dispersion Index (ODI), the isotropic volume fraction (Viso), and the intracellular volume fraction (Vic) derived from the NODDI model. Further, we used two novel measures from a non-parametric GMM, namely the Return-to-Origin Probability (RTOP) and Return-to-Axis Probability (RTAP), which are sensitive to axonal/cellular volume and density respectively. Using atlas-based registration, 22 white matter regions (6 projection, 4 association, and 1 callosal pathways bilaterally in each hemisphere) were selected and the mean value of all 7 measures were calculated in each region. These values were used as dependent variables, with GW as the independent variable in a linear regression model. Finally, we compared CHD and TDC groups on these measures in each ROI after removing age-related trends from both the groups. Results Linear analysis in the TDC population revealed significant correlations with GW (age) in 12 projection pathways for MD, Vic, RTAP, and 11 pathways for RTOP. Several association pathways were also significantly correlated with GW for MD, Vic, RTAP, and RTOP. The right callosal pathway was significantly correlated with GW for Vic. Consistent with the pathophysiology of altered development in CHD, diffusion measures demonstrated differences in the association pathways involved in language systems, namely the Uncinate Fasciculus (UF), the Inferior Fronto-occipital Fasciculus (IFOF), and the Superior Longitudinal Fasciculus (SLF). Overall, the group comparison between CHD and TDC revealed lower FA, Vic, RTAP, and RTOP for CHD bilaterally in the a) UF, b) Corpus Callosum (CC), and c) Superior Fronto-Occipital Fasciculus (SFOF). Moreover, FA was lower for CHD in the a) left SLF, b) bilateral Anterior Corona Radiata (ACR) and left Retrolenticular part of the Internal Capsule (RIC). Vic was also lower for CHD in the left Posterior Limb of the Internal Capsule (PLIC). ODI was higher for CHD in the left CC. RTAP was lower for CHD in the left IFOF, while RTOP was lower in CHD in the: a) left ACR, b) left IFOF and c) right Anterior Limb of the Internal Capsule (ALIC). Conclusion In this study, all three methods revealed the expected changes in the WM regions during the early postnatal weeks; however, GMM outperformed DTI and NODDI as it showed significantly larger effect sizes while detecting differences between the TDC and CHD neonates. Future studies based on a larger sample are needed to confirm these results and to explore clinical correlates.
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Affiliation(s)
- S Karmacharya
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - B Gagoski
- Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
| | - L Ning
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - R Vyas
- Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
| | - H H Cheng
- Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
| | - J Soul
- Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
| | - J W Newberger
- Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
| | - M E Shenton
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States; Boston VA Healthcare, Boston, MA, United States
| | - Y Rathi
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States.
| | - P E Grant
- Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
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Yan D, Shu-qin Z, Zhao-yang H, Ning L, Yue H, Li W. A case of comorbidity of narcolepsy and schizophrenia. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.899] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ning L, Lin W, Hu X, Fan R, Liang X, Wu Y, Shen S, Yu R, Sun J, Hou J. Prevalence of chronic kidney disease in patients with chronic hepatitis B: A cross-sectional survey. J Viral Hepat 2017; 24:1043-1051. [PMID: 28581186 DOI: 10.1111/jvh.12733] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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] [Received: 02/01/2017] [Accepted: 05/24/2017] [Indexed: 02/06/2023]
Abstract
Renal safety is a major concern during long-term antiviral treatment for chronic hepatitis B (CHB). This study aimed to investigate the prevalence of chronic kidney disease (CKD) in patients with CHB that had been treated with antiviral therapy. This was a single-centre, cross-sectional study in a real-life cohort in which all patients received antiviral treatment. Serum creatinine-based equations from the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) were used to estimate the glomerular filtration rate (GFR). CKD was defined as an eGFR <60 mL/min/1.73 m² or a urinary albumin to creatinine ratio ≥ 3 mg/mmol (defined as albuminuria). Univariate and multivariate analyses were conducted to determine the risk factors of CKD. A total of 1985 patients were included in the analysis from February 2015 to December 2015. The mean age and median duration of antiviral treatment was 42.20 years and 17.05 months, respectively. The overall prevalence of CKD was 7.9% (157/1985), with 44 patients experiencing decreased renal function (eGFR less than 60 mL/min/1.73 m²) and 129 patients with albuminuria. Patients with cirrhosis had a higher prevalence of a decreased GFR (4.3% vs 1.6%, P<.001) and albuminuria (11.1% vs 5.2%, P<.001) than those without cirrhosis. In the multivariate analysis, hypertension (Odds Ratio [OR] 4.564, P<.001), diabetes mellitus (OR 2.688, P<.001) and cirrhosis (OR 1.918, P<.001) were independent factors associated with the presence of CKD. CKD was a clinically significant comorbidity in patients with CHB. Special attention should be paid to cirrhotic patients and patients with the metabolic syndrome.
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Affiliation(s)
- L Ning
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - W Lin
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - X Hu
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - R Fan
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - X Liang
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Y Wu
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - S Shen
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - R Yu
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - J Sun
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - J Hou
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Wan L, Tong J, Zhou J, Guo H, Cui M, Liu Y, Ning L, Tang F. Variation of Vegetation Ecological Water Consumption and Its Response to Vegetation Coverage Changes in the Rocky Desertification Areas in South China. PLoS One 2016; 11:e0163566. [PMID: 27798642 PMCID: PMC5087854 DOI: 10.1371/journal.pone.0163566] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 09/11/2016] [Indexed: 11/18/2022] Open
Abstract
Over the past several decades, rocky desertification has led to severe ecological problems in karst areas in South China. After a rocky desertification treatment project was completed, the vegetation coverage changed greatly and, consequently, increased the ecology water consumption (approximately equal to the actual evapotranspiration) of the regional vegetation. Thus, it intensified the regional water stresses. This study explored the changes in the actual evapotranspiration (ETa) response to the vegetation coverage changes in the rocky desertification areas in South China based on the precipitation (P), potential evapotranspiration (ETp) and NDVI (the normalized difference vegetation index) datasets. The revised Bagrov model was used to simulate the actual evapotranspiration changes with the supposed increasing NDVI. The results indicated that the average NDVI value was lower when the rocky desertification was more severe. The ETa, evapotranspiration efficiency (ETa/ETp) and potential humidity (P/ETp) generally increased with the increasing NDVI. The sensitivity of the ETa response to vegetation coverage changes varied due to different precipitation conditions and different rocky desertification severities. The ETa was more sensitive under drought conditions. When a drought occurred, the ETa exhibited an average increase of 40~60 mm with the NDVI increasing of 0.1 in the rocky desertification areas. Among the 5 different severity categories of rocky desertification, the ETa values' responses to NDVI changes were less sensitive in the severe rocky desertification areas but more sensitive in the extremely and potential rocky desertification areas. For example, with the NDVI increasing of 0.025, 0.05, 0.075, and 0.1, the corresponding ETa changes increased by an average of 2.64 mm, 10.62 mm, 19.19 mm, and 27.58 mm, respectively, in severe rocky desertification areas but by 4.94 mm, 14.99 mm, 26.80, and 37.13 mm, respectively, in extremely severe rocky desertification areas. Understanding the vegetation ecological water consumption response to the vegetation coverage changes is essential for the vegetation restoration and water stresses mitigation in rocky desertification areas.
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Affiliation(s)
- Long Wan
- Jianshui Karst Ecosystem of the National Field Research Station, Key Laboratory of State Forestry Administration on Soil and Water Conservation, Beijing Forestry University, Beijing, China
| | - Jing Tong
- Jianshui Karst Ecosystem of the National Field Research Station, Key Laboratory of State Forestry Administration on Soil and Water Conservation, Beijing Forestry University, Beijing, China
- The College of Forestry, Beijing Forestry University, Beijing, China
| | - Jinxing Zhou
- Jianshui Karst Ecosystem of the National Field Research Station, Key Laboratory of State Forestry Administration on Soil and Water Conservation, Beijing Forestry University, Beijing, China
- * E-mail:
| | - Hongyan Guo
- Jianshui Karst Ecosystem of the National Field Research Station, Key Laboratory of State Forestry Administration on Soil and Water Conservation, Beijing Forestry University, Beijing, China
| | - Ming Cui
- Institute of Desertification Studies, Chinese Academy of Forestry, Beijing, China
| | - Yuguo Liu
- Institute of Desertification Studies, Chinese Academy of Forestry, Beijing, China
| | - Like Ning
- Key Laboratory of Water Cycle & Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
- Graduate University of Chinese Academy of Sciences, Beijing, China
| | - Fukai Tang
- Institute of Desertification Studies, Chinese Academy of Forestry, Beijing, China
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Abstract
The study aimed to evaluate whether hypertension was a risk factor for erectile dysfunction (ED). Databases including PubMed and Embase were retrieved to identify studies related to hypertension in ED patients. Odds ratio (OR) and 95% confidence interval (CI) were used as the effect size. Subgroup analyses stratified by total number of enrolled subjects and research regions were performed. Sensitivity analysis was performed by removing a single study at one time. Egger's test was used to evaluate the publication bias. Totally, 40 studies including 121,641 subjects were included in the meta-analysis. As a result, hypertension was closely related to ED (OR = 1.74, 95% CI, 0.63-0.80, p < .01). Subgroup analysis indicated hypertension was the risk factor for ED whatever the participants numbers. When stratified by different regions, hypertension was a risk factor for ED in Africa (OR = 3.35, 95% CI, 1.45-7.77, p < .01), Americas (OR = 1.97, 95% CI, 1.68-2.31, p < 0.01), Asia (OR = 1.46, 95% CI, 1.16-1.84, p < .01) and Europe (OR = 1.83, 95% CI, 1.34-2.49, p < .01), but not in Australia. Hypertension may be a potential risk factor for ED.
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Affiliation(s)
- L Ning
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - L Yang
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
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Mirzaalian H, Ning L, Savadjiev P, Pasternak O, Bouix S, Michailovich O, Grant G, Marx CE, Morey RA, Flashman LA, George MS, McAllister TW, Andaluz N, Shutter L, Coimbra R, Zafonte RD, Coleman MJ, Kubicki M, Westin CF, Stein MB, Shenton ME, Rathi Y. Inter-site and inter-scanner diffusion MRI data harmonization. Neuroimage 2016; 135:311-23. [PMID: 27138209 DOI: 10.1016/j.neuroimage.2016.04.041] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 03/15/2016] [Accepted: 04/18/2016] [Indexed: 11/17/2022] Open
Abstract
We propose a novel method to harmonize diffusion MRI data acquired from multiple sites and scanners, which is imperative for joint analysis of the data to significantly increase sample size and statistical power of neuroimaging studies. Our method incorporates the following main novelties: i) we take into account the scanner-dependent spatial variability of the diffusion signal in different parts of the brain; ii) our method is independent of compartmental modeling of diffusion (e.g., tensor, and intra/extra cellular compartments) and the acquired signal itself is corrected for scanner related differences; and iii) inter-subject variability as measured by the coefficient of variation is maintained at each site. We represent the signal in a basis of spherical harmonics and compute several rotation invariant spherical harmonic features to estimate a region and tissue specific linear mapping between the signal from different sites (and scanners). We validate our method on diffusion data acquired from seven different sites (including two GE, three Philips, and two Siemens scanners) on a group of age-matched healthy subjects. Since the extracted rotation invariant spherical harmonic features depend on the accuracy of the brain parcellation provided by Freesurfer, we propose a feature based refinement of the original parcellation such that it better characterizes the anatomy and provides robust linear mappings to harmonize the dMRI data. We demonstrate the efficacy of our method by statistically comparing diffusion measures such as fractional anisotropy, mean diffusivity and generalized fractional anisotropy across multiple sites before and after data harmonization. We also show results using tract-based spatial statistics before and after harmonization for independent validation of the proposed methodology. Our experimental results demonstrate that, for nearly identical acquisition protocol across sites, scanner-specific differences can be accurately removed using the proposed method.
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Affiliation(s)
- H Mirzaalian
- Harvard Medical School and Brigham and Women's Hospital, Boston, USA.
| | - L Ning
- Harvard Medical School and Brigham and Women's Hospital, Boston, USA
| | - P Savadjiev
- Harvard Medical School and Brigham and Women's Hospital, Boston, USA
| | - O Pasternak
- Harvard Medical School and Brigham and Women's Hospital, Boston, USA
| | - S Bouix
- Harvard Medical School and Brigham and Women's Hospital, Boston, USA
| | | | - G Grant
- Stanford University Medical Center, Palo Alto, CA, USA (Previously Duke University)
| | - C E Marx
- Duke University Medical Center and VA Mid-Atlantic MIRECC, NC, USA
| | - R A Morey
- Duke University Medical Center and VA Mid-Atlantic MIRECC, NC, USA
| | - L A Flashman
- Dartmouth University, Hanover and Geisel School of Medicine at Dartmouth, Hanover, NH, USA
| | - M S George
- Medical University of South Carolina, Charleston, SC, USA, Ralph H. Johnson VA Medical Center, Charleston
| | - T W McAllister
- Geisel School of Medicine at Dartmouth (original) and Indiana University School of Medicine (current)
| | - N Andaluz
- Department of Neurosurgery, University of Cincinnati (UC) College of Medicine; Neurotrauma Center at UC Neuroscience Institute; and Mayfield Clinic, Cincinnati, OH
| | - L Shutter
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA (Previously Duke University)
| | - R Coimbra
- Department of Surgery, University of California, San Diego
| | - R D Zafonte
- Spaulding Rehabilitation Hospital and Harvard Medical School, Boston, USA
| | - M J Coleman
- Harvard Medical School and Brigham and Women's Hospital, Boston, USA
| | - M Kubicki
- Harvard Medical School and Brigham and Women's Hospital, Boston, USA
| | - C F Westin
- Harvard Medical School and Brigham and Women's Hospital, Boston, USA
| | - M B Stein
- University of California, San Diego, San Diego, CA, USA
| | - M E Shenton
- Harvard Medical School and Brigham and Women's Hospital, Boston, USA; VA Boston Healthcare System, Boston, MA, USA
| | - Y Rathi
- Harvard Medical School and Brigham and Women's Hospital, Boston, USA
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Yusup A, Kaneko H, Liu L, Ning L, Sadatsuki R, Hada S, Kamagata K, Kinoshita M, Futami I, Shimura Y, Tsuchiya M, Saita Y, Takazawa Y, Ikeda H, Aoki S, Kaneko K, Ishijima M. Bone marrow lesions, subchondral bone cysts and subchondral bone attrition are associated with histological synovitis in patients with end-stage knee osteoarthritis: a cross-sectional study. Osteoarthritis Cartilage 2015; 23:1858-64. [PMID: 26028139 DOI: 10.1016/j.joca.2015.05.017] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [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] [Received: 12/01/2014] [Revised: 05/16/2015] [Accepted: 05/20/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The aim of this study was to examine the osteoarthritis (OA)-related structural changes associated with histological synovitis in end-stage knee OA patients. METHODS Forty end-stage knee OA patients (female: 88%, mean age: 71.8 y) were enrolled. All participants underwent 3.0-T MRI. The structural changes, such as cartilage morphology, subchondral bone marrow lesion (BML), subchondral bone cyst (SBC), subchondral bone attrition (SBA), osteophytes, meniscal lesion and synovitis, were scored using the whole-organ MRI scoring (WORMS) method. Synovial samples were obtained from five regions of interest (ROIs) of the knee joint during total joint replacement surgery. The associations between the histological synovitis score (HSS) and WORMS or the synovial expression levels of cyclooxygenase (COX)-2, interleukin (IL)-1β, IL-6 and transforming growth factor (TGF)-β were examined using Spearman's correlation coefficient. RESULTS Among the seven OA-related structural changes, the BML, SBC, SBA and synovitis were significantly associated with the HSS (r = 0.33, 0.35, 0.48 and 0.36, respectively), while other morphological changes were not. Although synovial COX-2, IL-1β or IL-6 expression levels were not associated with the HSS, the synovial TGF-β expression levels were associated with the HSS. CONCLUSION The presence of BML, SBC and SBA was associated with histological synovitis in end-stage knee OA patients.
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Affiliation(s)
- A Yusup
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan; Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - H Kaneko
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - L Liu
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan; Sportology Center, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - L Ning
- Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - R Sadatsuki
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - S Hada
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - K Kamagata
- Department of Radiology, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - M Kinoshita
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - I Futami
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - Y Shimura
- Department of Orthopedics, Juntendo Tokyo Koto Geriatric Medical Center, Tokyo, Japan.
| | - M Tsuchiya
- Department of Orthopedics, Juntendo Tokyo Koto Geriatric Medical Center, Tokyo, Japan.
| | - Y Saita
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - Y Takazawa
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - H Ikeda
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - S Aoki
- Department of Radiology, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - K Kaneko
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan; Sportology Center, Juntendo University Graduate School of Medicine, Tokyo, Japan; Department of Pathophysiology for Locomotive and Neoplastic Diseases, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - M Ishijima
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan; Sportology Center, Juntendo University Graduate School of Medicine, Tokyo, Japan; Department of Pathophysiology for Locomotive and Neoplastic Diseases, Juntendo University Graduate School of Medicine, Tokyo, Japan.
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Ning L, Liu W, Jiang C, Guo F. Multipaddled anterolateral thigh chimeric flap for reconstruction of complex defects in head and neck. Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.719] [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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Huang ZB, Wan SL, Lu YJ, Ning L, Liu C, Fan SW. Does vitamin K2 play a role in the prevention and treatment of osteoporosis for postmenopausal women: a meta-analysis of randomized controlled trials. Osteoporos Int 2015; 26:1175-86. [PMID: 25516361 DOI: 10.1007/s00198-014-2989-6] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 12/04/2014] [Indexed: 12/11/2022]
Abstract
UNLABELLED To identify the role of vitamin K2 for the prevention and treatment of osteoporosis in postmenopausal women, we conducted this meta-analysis of 19 randomized controlled trials. Our results showed that vitamin K2 might play a role in maintaining the bone mineral density and in reducing the incidence of fractures for postmenopausal women with osteoporosis. INTRODUCTION Vitamin K2 has been revealed to be effective in the prevention and treatment of osteoporosis in Japan, which was not confirmed in western countries. Thus, we conduct this meta-analysis to verify the hypothesis that vitamin K2 plays a role in the prevention and treatment of osteoporosis for postmenopausal women. METHODS We searched the Cochrane Library, Pub Med, EMBASE, and ISI web of knowledge (until December 1, 2013) and reference lists of eligible articles. A meta-analysis of all-including randomized controlled trials was then performed. RESULTS Nineteen randomized controlled trials encompassing 6759 participants have met the inclusion criteria. Subgroup analysis of postmenopausal women with osteoporosis revealed a significant improvement of vertebral BMD for both medium-term and long-term results favoring vitamin K2 group (p < 0.00001 and p = 0.0005). However, no significant difference in BMD changes was revealed for the non-osteoporosis subgroup analysis. As for the incidence of fractures, pooled analysis of the seven related studies demonstrated no significant difference in the incidence of fractures favoring vitamin K2 (RR = 0.63, p = 0.08). However, sensitivity analysis by rejecting the study inducing heterogeneity demonstrated a significant difference in the incidence of fractures favoring vitamin K2 (RR = 0.50, p = 0.0005). Significant differences were found in undercarboxylated osteocalcin reduction and osteocalcin increment. The result of adverse reaction analysis showed that vitamin K2 group seemed to have a higher adverse reaction rate (RR = 1.22, p = 0.06). CONCLUSIONS This meta-analysis seemed to support the hypothesis that vitamin K2 plays kind of a role in the maintenance and improvement of vertebral BMD and the prevention of fractures in postmenopausal women with osteoporosis. The reduction of undercarboxylated osteocalcin and increment of osteocalcin may have some relation to the process of bone mineralization. However, the effect of vitamin K2 for postmenopausal women without osteoporosis had not been identified. Further high-quality RCTs with large sample size are needed to confirm the role of vitamin K2 in osteoporosis for postmenopausal women.
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Affiliation(s)
- Z-B Huang
- Department of Orthopaedics, Hangzhou Xiasha Hospital, 368 Xiasha Road, Hangzhou, Zhejiang, China
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Haibo J, Ning L, Guangren G, Xuedong W, Meng S, Jian W, Fang L, Li Y, Maomao Z, Sining H, Jingbo H, Bo Y, Shuo Z, Shaosong Z, Ik-kyung J. Different vessel response between chronic total occlusions and non-CTO lesion after Sirolimus-eluting stent implantation: a serial optical coherence tomography study. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Ning L, Shuijun L, Chen Y, Shuiming G. e0381 The Association between Lp-PLA2 activity and major cardiovascular events in acute coronary syndrome at the Chinese Community. Heart 2010. [DOI: 10.1136/hrt.2010.208967.381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Wan S, Ning L, Hong R, Wu W, Fan S, Tsuchiya H, Tomita K. Clinicopathological Features of Solitary Fibrous Tumours in the Extremities: Four Case Reports and a Literature Review. J Int Med Res 2010; 38:694-704. [PMID: 20515585 DOI: 10.1177/147323001003800234] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
This paper reports on the clinicopathological features of four patients with solitary fibrous tumours arising from the extremities and presents a review of the relevant literature. The patients consisted of three women and one man, with a mean age of 47.8 years. Standard pre-operative work-up data were examined, including: history, clinical examination, plain radiography, computed tomography scans of the lesion and chest, magnetic resonance imaging, angiography, technetium-99m bone scan, thallium-201 scintigraphy and routine laboratory tests. Immunohisto chemical staining was performed for CD34, Bcl-2 protein, vimentin, S-100 protein, desmin and smooth muscle actin, and pathological material was reviewed for the presence of histologically malignant components. Immunohistochemically, all of the tumours were diffusely positive for CD34. Clinical and radiological findings of solitary fibrous tumours affecting the extremities are reminiscent of those of aggressive or malignant soft tissue tumours. Pathological and immunohistochemical studies are important in making the correct diagnosis.
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Affiliation(s)
- S Wan
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - L Ning
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - R Hong
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - W Wu
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - S Fan
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - H Tsuchiya
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - K Tomita
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
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Yuan-Xin L, Ning L, You-Sheng L, Xiao-Dong N, Ming L, Jian W, Jie-Shou L. Preliminary Experience With Alemtuzumab Induction Therapy Combined With Maintenance Low-Dose Tacrolimus Monotherapy in Small-Bowel Transplantation in China. Transplant Proc 2010; 42:29-34. [DOI: 10.1016/j.transproceed.2009.12.028] [Citation(s) in RCA: 3] [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: 10/19/2022]
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El-Chaar D, Gaudet L, Ning L, McCabe L, Sylvain J, Tawagi G, Wen SW, Walker M. 173: The impact of maternal body mass index on obstetrical outcome. Am J Obstet Gynecol 2009. [DOI: 10.1016/j.ajog.2009.10.188] [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: 11/28/2022]
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Cai DW, Liu XF, Bu RG, Chen XN, Ning L, Cheng Y, Cheng Y, Wu B. Genetic Polymorphisms of MTHFR and Aberrant Promoter Hypermethylation of the RASSF1A Gene in Bladder Cancer Risk in a Chinese Population. J Int Med Res 2009; 37:1882-9. [PMID: 20146887 DOI: 10.1177/147323000903700625] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Epidemiological studies have shown that folate deficiency increases the risk of cancer by affecting DNA repair and methylation. Methylenetetrahydrofolate reductase (MTHFR) is a key enzyme in folate metabolism. In this study, it was hypothesized that MTHFR (C677T and A1298C) polymorphisms would be associated with bladder cancer and also with hypermethylation of the promoter of the Ras association domain family 1A (RASSF1A) gene. This hospital-based, case-control study of 312 bladder cancer patients and 325 cancer-free controls found that individuals carrying the MTHFR 677TT genotype had a 2.00-fold increased risk of bladder cancer compared with those carrying the 677CC genotype. None of the MTHFR A1298C polymorphisms alone were associated with bladder cancer, but the combined haplotype 677TT/1298AA was associated with a 2.27-fold increased risk compared with haplotype 677CC/1298AA. There was no association between MTHFR gene variants and methylation status of the RASSF1A gene in the 45 bladder cancer patients in whom this was studied. It is concluded that the MTHFR 677TT genotype and the TTAA haplotype may increase the risk of bladder cancer.
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Affiliation(s)
- DW Cai
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang City, Liaoning Province, China
| | - XF Liu
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang City, Liaoning Province, China
| | - RG Bu
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang City, Liaoning Province, China
| | - XN Chen
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang City, Liaoning Province, China
| | - L Ning
- Department of Ophthalmology, The General Hospital of Shenyang Military Region, Shenyang City, Liaoning Province, China
| | - Y Cheng
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang City, Liaoning Province, China
| | - Y Cheng
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang City, Liaoning Province, China
| | - B Wu
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang City, Liaoning Province, China
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Zhihui T, Wenkui Y, Weiqin L, Zhiming W, Xianghong Y, Ning L, Jieshou L. A randomised clinical trial of transnasal endoscopy versus fluoroscopy for the placement of nasojejunal feeding tubes in patients with severe acute pancreatitis. Postgrad Med J 2009; 85:59-63. [PMID: 19329697 DOI: 10.1136/pgmj.2008.070326] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVES To compare transnasal endoscopy with fluoroscopy for the placement of nasojejunal feeding tubes (NJTs) in patients with severe acute pancreatitis. METHODS 100 patients were randomised to receive NJTs by transnasal endoscopy or fluoroscopy. Successful placement was confirmed by abdominal radiograph. RESULTS The success rate was 96% using transnasal endoscopy and 94% using fluoroscopy (p>0.05). The mean (SEM) time to perform a successful procedure was 12.7 (5.1) min for transnasal endoscopy and 7.9 (5.9) min for fluoroscopy (p<0.05). No complications were reported using fluoroscopy, whereas there was one case of tachypnoea and four cases of abdominal distension related to transnasal endoscopy (p<0.05). For transnasal endoscopy, the mean (SEM) visual analogue scale comfort score was 3.2 (1.3) before, 8.7 (1.5) during, and 3.6 (1.3) after a successful procedure. The corresponding values for fluoroscopy were 3.1 (1.2), 5.4 (1.6) and 3.7 (1.4). The difference in scores during the procedure was significant (p<0.05). CONCLUSIONS Transnasal endoscopic and fluoroscopic placement of NJTs can safely and accurately be performed in patients with severe acute pancreatitis. The results of this study show no significant difference in success and complication rates between the two procedures. However, the procedure time for fluoroscopic placement was shorter than for transnasal endoscopic placement, and patients experienced less discomfort.
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Affiliation(s)
- T Zhihui
- Research Institute of General Surgery, Jinling Hospital, 305 East Zhongshan Road, Nanjing 210002, Jiangsu Province, China
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Pinchot S, Jaskula-Sztul R, Ning L, Kunnimalaiyaan M, Chen H. PL13. Identification and Validation of the Novel Notch1 Activator, Resveratrol, via a Quantitative High-Throughput Assay. J Surg Res 2009. [DOI: 10.1016/j.jss.2008.11.287] [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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Hernandez BY, Wilkens LR, Zhu X, McDuffie K, Thompson P, Shvetsov YB, Ning L, Goodman MT. Circumcision and human papillomavirus infection in men: a site-specific comparison. J Infect Dis 2008; 197:787-94. [PMID: 18284369 DOI: 10.1086/528379] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Lack of circumcision has been identified as a risk factor for male genital human papillomavirus (HPV) infection, although this association has not been consistently supported. METHODS Specimens for HPV testing were collected from a cohort of 379 (primarily heterosexual) adult males. HPV prevalence in the glans penis and coronal sulcus, penile shaft, scrotum, semen, and urine was compared by circumcision status. RESULTS Overall, HPV DNA prevalence ranged from 6% in semen to 52% in the penile shaft. The prevalence of any HPV infection in the glans/corona was significantly higher in uncircumcised men (46%) than in circumcised men (29%) (odds ratio [OR], 1.96 [95% confidence interval (CI), 1.02-3.75], adjusted for demographic characteristics and sexual history). Uncircumcised men also had an increased risk of oncogenic HPV infection (adjusted OR, 2.51 [95% CI, 1.11-5.69]) and infection with multiple HPV types (adjusted OR, 3.56 [95% CI, 1.50-8.50]). Among uncircumcised men, HPV prevalence in the foreskin (44%) was comparable to that in the glans/corona, and type-specific positivity was observed between the 2 sites (kappa=0.52). CONCLUSIONS Uncircumcised men have an increased risk of HPV infection, including with oncogenic HPV, specifically localized to the glans/corona, possibly because of its proximity to the foreskin, which may be particularly vulnerable to infection.
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Affiliation(s)
- B Y Hernandez
- Cancer Research Center of Hawaii, Honolulu, HI 96813, USA.
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Zhang J, Liu Y, Hao X, Fang Z, Ning L. Effects of different chemotherapy regimens and tamoxifen for HER2 over-expressed breast cancer adjuvant therapy. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.11048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
11048 Background: To evaluate effects of different adjuvant chemotherapy regimens and TAM in HER-2-overexpressed breast cancer patients. Methods: To study 1625 primary breast cancer cases after operation from 2002.7 to 2005.11 given adjuvant chemotherapy ,600 cases given CMF, 600 cases given CEF, and 425 cases given T-regimen (anthracyclines follow taxanes),1090 HR+ cases given tamoxifen. HER-2 expression were measured by immunohistochemistry (IHC). Median follow-up time is 42 months. Results: (1)3yr DFS of HER-2 over-expression is inferior to HER-2 negative ones in CMF group(p<0.05), no difference between HER-2- overexpressed and HER-2-negative group treated with either CEF or taxanes-based regimen (p>0.05). Subgroup analysis suggested: patients treated with CMF, 3yr DFS of HER-2 over-expression is inferior to HER-2-negative ones in node-positive subgroup, but no difference in node-negative ones; HER-2 expression has no influence on effects of CEF or T-regimen in node-positive or node-negative subgroup. (2) 425 HER-2 over-expressed patients(183 cases given CMF , 121 cases given CEF , and 121 cases given T-regimen): compared to CMF, anthracyclines and taxanes are more effective, but no difference between anthracyclines and T-regimen. (3) 235 patients with HER-2 over- expression and node-postive (72 cases given CMF , 68 cases given CEF, and 95 cases given T-regimen):, anthracyclines and taxanes are more effective than CMF, but no difference between anthracyclines and T-regimen. (4)3yr DFS is 91.23% in HER-2 over-expressed group and 93.42% in HER-2-negative group (p=0.04) with TAM. HER-2 over-expressed patients are resistant to TAM. (5) Subgroup analysis suggested that: 3yr DFS is 88.67% with HER-2 over-expression and 92.20% with HER-2-negative in postmenopausal node-positive subgroup(p=0.0069), postmenopausal patients with HER-2 over-expression and node-positve are resistant to TAM; no difference in either premenopausal or postmenopausal node-negative subgroup (p>0.05). Conclusions: No difference between Anthracyclines based and T-regimens for HER2 over-expressed patients with node-positive for 3yr DFS.Postmenopausal ER+/PR+ patients with HER2 over- expression are resistant to Tamoxifen endocrine therapy. No significant financial relationships to disclose.
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Affiliation(s)
- J. Zhang
- Breast Cancer Center, Tianjin, China
| | - Y. Liu
- Breast Cancer Center, Tianjin, China
| | - X. Hao
- Breast Cancer Center, Tianjin, China
| | - Z. Fang
- Breast Cancer Center, Tianjin, China
| | - L. Ning
- Breast Cancer Center, Tianjin, China
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Zhang L, Ning L, Zhang X, Pan ZQ, Wang X, Xu F, Guan ZZ. Preliminary analysis of biomarkers in plasma by SELDI to predict the response to EGFR tyrosine kinase inhibitors (TKIs) in NSCLC patients. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.7189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
7189 Background: The identification of NSCLC patients who are most likely to respond to EGFR tyrosine kinase inhibitors (TKIs) have been investigated intensively. Although screenings for EGFR mutation and gene copy number are promising, these tests are not yet widely available. New predictor markers are urgently needed. The objective of this study was to identify proteomic markers in plasma to predict benefits for patients treated with EGFR TKIs. Methods: Proteomic spectra derived from plasma samples from EGFR TKIs-responsive patients and non-responsive patients were generated by surface-enhanced laser desorption/ionization time-of-flight mass spectrometry (SELDI-TOF MS). These proteomic spectra (WCX2 chips, Ciphergen Biosystems, Inc.) were then analyzed by comparing protein profiles in different response groups (PR Vs PD, training set). Another group of patients treaded with EGFR TKIs will be serving as testing set to validate the result of training set. Results: Totally, fifty-four advanced NSCLC patients were included in this study. All patients were treated with single agent of gefitinib or erlotinib. Twenty-nine patients were included in training set of this study. All were suitable for response evaluation. Ten patients (34.5%) were PR, 8 (27.6%) were SD, and 11 (37.9%) were progressive disease (PD). Total six significant protein peaks were significant (m/z 4288, 4595, 9191, 9349, 9397, and 9563) between PR group and PD group (table). Another twenty-five patients were included for testing set. Analyzing of testing set is still going on. Table shows PR and PD patients’ plasma comparison on WCX2 chips. Conclusions: This preliminary “training” set of spectra that uses SELDI-TOF MS technology found that six protein peaks seemed to be very important biomarkers to predict the response to gefitinib. Prospective tests to confirm these proteins and peptides will be present at this meeting. These results are promising for identifying new biomarkers of EGFR TKIs with SELDI. [Table: see text] No significant financial relationships to disclose.
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Affiliation(s)
- L. Zhang
- Cancer Center of Sun Yat-sen University, Guangzhou, China
| | - L. Ning
- Cancer Center of Sun Yat-sen University, Guangzhou, China
| | - X. Zhang
- Cancer Center of Sun Yat-sen University, Guangzhou, China
| | - Z. Q. Pan
- Cancer Center of Sun Yat-sen University, Guangzhou, China
| | - X. Wang
- Cancer Center of Sun Yat-sen University, Guangzhou, China
| | - F. Xu
- Cancer Center of Sun Yat-sen University, Guangzhou, China
| | - Z. Z. Guan
- Cancer Center of Sun Yat-sen University, Guangzhou, China
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39
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Wenjun W, Yonghui Z, Yunhai Z, Ning L. Assignment of porcine insulin-like growth factor-binding protein-4 (IGFBP4) to SSC12 by fluorescence in situ hybridization and radiation hybrid mapping. Anim Genet 2006; 36:522-3. [PMID: 16293133 DOI: 10.1111/j.1365-2052.2005.01361.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- W Wenjun
- State Key Laboratory for Agrobiotechnology, China Agricultural University, Beijing 100094, China
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40
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Hernandez BY, McDuffie K, Goodman MT, Wilkens LR, Thompson P, Zhu X, Wong W, Ning L. Comparison of physician- and self-collected genital specimens for detection of human papillomavirus in men. J Clin Microbiol 2006; 44:513-7. [PMID: 16455906 PMCID: PMC1392697 DOI: 10.1128/jcm.44.2.513-517.2006] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
There is currently no consensus regarding the most appropriate methods of sampling for the detection of genital human papillomavirus (HPV) in men. We employed a recently developed collection method involving abrasion and moistened swabbing of the genital skin surface for the detection of HPV in a cohort of 136 university-affiliated males in Hawaii. Genital specimens collected by physicians using this method were compared with self-collected specimens from the same individuals obtained 24 h later. Self-collected specimens yielded a greater proportion of sufficient specimens than physician-collected specimens. HPV detection was comparable in physician- and self-collected specimens; detection was highest in the penile shaft (51.2% and 51.5%, respectively, P = 0.96), followed by the scrotum (41.2% and 46.2%, P = 0.43), the glans/coronal sulcus (31.9% and 33.1%, P = 0.84), and the foreskin (33.3% and 28.6%, P = 0.74). Site-specific agreement in HPV detection between paired physician- and self-collected samples ranged from 67.2% (kappa = 0.34) for the penile shaft to 95.0% (kappa = 0.89) for the foreskin. There was a high degree of concordance in HPV genotypes in HPV-positive pairs. The most common type was HPV type 84, which comprised approximately 15% of the specimens. The emery paper-swab method offers an efficient sampling method for genital HPV DNA detection in men that could be used both within and outside of the clinical setting.
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Affiliation(s)
- Brenda Y Hernandez
- Cancer Research Center of Hawaii, 1236 Lauhala Street, Honolulu, HI 96813, USA.
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41
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Wang J, Zhou Y, Wang AF, Zhang SH, Ning L, He PG, Fang YZ. Determination of levodopa methyl ester and its metabolites in rat serum by CZE with amperometric detection. Anal Bioanal Chem 2005; 382:198-203. [PMID: 15900472 DOI: 10.1007/s00216-005-3202-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2005] [Revised: 02/23/2005] [Accepted: 02/25/2005] [Indexed: 10/25/2022]
Abstract
A reliable and reproducible method, capillary zone electrophoresis with amperometric detection (CZE-AD), has been developed for separation and quantification of levodopa methyl ester (LDME) and its biotransformation products levodopa (L-DOPA) and dopamine (DA) in rat serum. A carbon-disk electrode was used as working electrode. The optimum conditions for CZE detection were 50 mmol L(-1) phosphate solution at pH 7.0 as running buffer, 17 kV as separation voltage, 1.0 V (vs Ag/AgCl, 3.0 mol L(-1)) as detection potential, and sample injection for 8 s at 17 kV. The linear ranges were from 2.4 x 10(-2) to 2.2 microg mL(-1) for LDME, 2.9 x 10(-1) to 49.5 microg mL(-1) for L-DOPA, and 1.4 x 10(-2) to 1.5 microg mL(-1) for DA with correlation coefficients of 0.9997, 0.9994, and 0.9999, respectively. The detection limits for LDME, L-DOPA, and DA were 14.6, 98.0, and 9.7 ng mL(-1), respectively. Recoveries were 80.3% for LDME, 93.5% for L-DOPA, and 86.5% for DA. This method was applied to serum samples after intravenous injection of LDME and L-DOPA to rats.
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Affiliation(s)
- J Wang
- Department of Chemistry, East China Normal University, Shanghai, 200062, PR China.
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42
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Ning L, Kato Y, Sano H, Nair RBR, Yoneda M, Watanabe S, Kanno T. Spontaneous Dissecting Aneurysm of Middle Cerebral Artery: A Case Report with Review of the Literature. ACTA ACUST UNITED AC 2003; 46:357-60. [PMID: 14968404 DOI: 10.1055/s-2003-812503] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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: 10/26/2022]
Abstract
We report a case of a dissecting aneurysm of the middle cerebral artery (MCA) and its treatment strategies. A 50-year-old male patient presented with occipital and neck pain for 2 days. CT scan revealed subarachnoid hemorrhage (SAH) in the region of the right sylvian fissure. A left carotid angiogram showed a dissecting aneurysm of the left MCA (M1). He was treated surgically by a pterional trans-sylvian approach. Clipping was done along with additional reinforcement by wrapping to completely obliterate the neck of the aneurysm. On reviewing the literature, we think that dissecting aneurysms seem to be one of the important causes of SAH and cerebral infarction of unverified origin. If an MCA dissecting aneurysm is identified, especially located in the proximal portion, surgical treatment must be considered. These patients merit a close follow-up.
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Affiliation(s)
- L Ning
- Department of Neurosurgery, Fujita Health University, Toyoake, Aichi 470-1192, Japan
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Zhao X, Guo Y, Tian J, Guo S, Li Y, Wang C, Ma J, Ning L, Liu J, Zhang H. [Buccal mucosa for urethral reconstruction in hypospadias repair]. Zhonghua Yi Xue Za Zhi 2001; 81:572. [PMID: 16432962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Affiliation(s)
- X Zhao
- Department of Urology, Shanxi Province General Hospital China People's Police Army, Taiyuan 030006, China
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44
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Xu G, Zhang C, Ning L. [Evaluation on the cytotoxicity of Gallium alloy by MTT-assay]. Zhonghua Kou Qiang Yi Xue Za Zhi 2001; 36:189-92. [PMID: 11812339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
OBJECTIVE To test the cytotoxicity of Gallium alloy, a new mercury-free dental restorative material. METHODS L-929 mouse fibroblasts were used to detect the cell relative proliferation rate of Gallium alloy and high-copper amalgam by MTT-assay. RESULTS The results indecated that the relative growth rate induced by Gallium alloy was high (93.0% +/- 4.9% 2ds, 102.0% +/- 3.5% 4ds, 107.2% +/- 4.2% 7ds), and the cytotoxicity of Gallium alloy was 0 grade according to the Test Standard of Shanghai Medical Biomaterial, meaning Gallium alloy had no significant cytotoxicity and the relative growth rate of Gallium alloy was higher than that of high-copper amalgam. The high-copper amalgam showed medium cytotoxicity. CONCLUSION Gallium alloy has no significant cytotoxicity.
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Affiliation(s)
- G Xu
- Department of Orthodontics, Stomatology Hospital of Zhejiang University, Hangzhou 310006, China
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Sun J, Ning L, Gu G, Qian Y, Meng A. [Cytocompatible evaluation for skin reproducing membrane of medical fibroin]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 2000; 17:393-5. [PMID: 11211822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
This study was intended to evaluate the cytocompatibility of skin reproducing membrane of medical fibroin. Cell growth rate test and hemolysis test were conducted to investigate the cytotoxicity and hemolysis reaction for skin reproducing membrane. The results showed there was no obvious cytotoxicity for this kind of membrance. The hemolysis rate was 1.15%. In conclusion, skin reproducing membrane is a material of good cytocompatibility.
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Affiliation(s)
- J Sun
- Shanghai Biomaterials Research & Test Center, No. 9 Hospital, Shanghai Second Medical University, Shanghai 200023
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46
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Sun L, Ning L, Bi K, Luo X. [Quality evaluation of indigowoad root and leaf by chemical pattern recognition]. Zhong Yao Cai 2000; 23:609-13. [PMID: 12575037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
27 samples of indigowoad root and 5 samples of indigowoad leaf from different species and in different habital were collected. The chemical constituents were analyzed by HPLC, and ten original chemical features as a whole obtained. Meanwhile, extrinsic bacteriostasis experiments were carried out for each of the 32 samples. Canonical correlation analysis was applied to the intercorrelation between the chemical and the pharmacologic data, and five chemical features were found to be the effective constituents. In the end, the 32 samples were divided into five classes by the fuzzy clustering technique ISODATA(interachive self-organizing data analysis technique A).
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Affiliation(s)
- L Sun
- Shenyang Pharmaceutical University, Shenyang 110015
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47
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Xia J, Yin Z, Dai H, Xue Z, Chen Y, Pan Q, Ning L. [Molecular cytogenetics study in a case with unbalanced chromosome translocation]. Zhonghua Yi Xue Yi Chuan Xue Za Zhi 2000; 17:10-2. [PMID: 10653900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
OBJECTIVE To analyze the chromosome structural aberration in a case of unbalanced chromosome translocation by fluorescence in situ hybridization technique. METHODS The 1,18 whole chromosome specific painting probe were used to confirm chromosome abnormality suggested by high resolution G-banding examination. RESULTS An unbalanced translocation t(1;18)(q42;q22) was detected in the patient, which caused partial trisomy of 1q42-qter and partial monosomy of 18q22-qter. CONCLUSION The identified translocation suggested a potential site for congenital heart disease.
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Affiliation(s)
- J Xia
- National Laboratory of Medial Genetics, Hunan Medical University, Changsha, Hunan, 410078 P.R. China.
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48
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Ning L, Xue M, Huang HN. [Study on biocompatibility of skin reproductive membrane]. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2000; 14:44-8. [PMID: 12024591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
OBJECTIVE To study the biocompatibility of skin reproductive membrane. METHODS According to ISO's standards, the extractions of the skin reproductive membrane were prepared, and the acute systematic toxicity test, primary skin irritant test, cytotoxicity test, gene expression of type I collagen and fibronectin were detected to evaluate the biocompatibility of skin reproductive membrane. RESULTS All of those tests showed negative results. CONCLUSION The skin reproductive membrane has excellent biocompatibility in the level of the systematic, cellular and molecular biology.
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Affiliation(s)
- L Ning
- Shanghai Biomaterials Research and Test Center, Shanghai the Second Medical University, Shanghai, P. R. China 200023
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Ueda Y, Miyashita N, Imai K, Yamaguchi Y, Takamura K, Notohara M, Shiroishi T, Kawashima T, Ning L, Wang C, Wu X, Moriwaki K. Nucleotide sequences of the mouse globin beta gene cDNAs in a wild derived new haplotype Hbb(w1). Mamm Genome 1999; 10:879-82. [PMID: 10441738 DOI: 10.1007/s003359901107] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Haplotypes of the beta-globin gene complex (Hbb) in laboratory mice have been defined as d, p, and s. We previously found a new haplotype w1 in wild mice collected from northwestern China. This study analyzed the nucleotide sequences of b1 and b2-globin gene cDNAs of both the p and w1 haplotypes, in comparison with those of the d haplotype. In Hbb-b1 cDNA, six base substitutions were found between the d and w1 haplotypes and also between p and w1, but none existed between d and p. In Hbb-b2 cDNA, three base substitutions were found between the d and w1 haplotypes and also between d and p, but none between p and w1. This result indicated that the Hbb gene complex of the p haplotype carries b1(d) and b2(w1) genes and is probably a recombinant between d and w1 haplotypes. The hemoglobin containing the W1 phenotype showed oxygen-binding properties identical with those of the hemoglobins containing D and P phenotypes.
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Affiliation(s)
- Y Ueda
- Laboratory of Animal Cell Technology, Fukuyama University, Fukuyama, Hiroshima-ken, 729-0292, Japan
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Li Y, Chen J, Xue M, Ning L, Meng A, Liu J. [A comparative study on cytocompatibility of medical PVA and intelligent PVA-g-NIPAAm hydrogels]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 1999; 16:5-9. [PMID: 12553265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
"Intelligent" Polymers which resonse with large property changes to small physical or chemical stimuli are attracting more and more attention in the field of medical science. One trend in the area is to modify some conventional medical polymers to form intelligent biomaterials. This investigation was designed to evaluate and compare in vitro cytocompatibility of PVA hydrogel, which could be used as a kind of solid support with good biomcompatibility, and PVA-g-NIPAAm, which was produced by irradiation grafting of NIPAAm onto the said PVA hydrogel support. Cytotoxicity test was carried out with a modified Cell Relative Growth Rate test (RGR test). On the day 2, day 4 and day 7, the RGRs of the PVA hydrogel were 82%, 90% and 102% respectively while the RGRs of the PVA-g-NIPAAm were 77%, 86% and 100%. The grades of the cytotoxicity of the PVA and PVA-g-NIPAAm hydrogels were 0, so they had no cytotoxicity as judged by our tests. After 24 hours, cells in direct contact with the two kinds of samples were observed morphologically through the Olympus inverted microscope and had a normal development. The conclusion suggests that irradiation grafting is a good way to modify conventional medical polymers to produce intelligent biomaterials.
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Affiliation(s)
- Y Li
- Shanghai Biomaterial Research and Test Center, Shanghai Second Medical University, Shanghai 200023
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