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Advances in fabricating spherical alginate hydrogels with controlled particle designs by ionotropic gelation as encapsulation systems

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Particuology 2016年第1期14卷 44-60页

作者： Jun-Yee Leong Weng-Hoong Lam Kiang-Wei Ho Wan-Ping Voo Micky Fu-Xiang Lee Hui-peng Lim swee-Lu Lim Beng-Ti Tey Denis Poncelet alan Lagoon Selatan Bandar Sunway Selangor 46150 Malaysia Advanced Engineering Platform Monash University Malaysia Jalan Lagoon Selatan Bandar Sunway Selangor 46150 Malaysia Oniris UMR CNRS 6144 GEPEA rue de la Geraudiere BP82225 Nantes 44322 France

Alginate is a biopolymer that has exceptional gelling properties, which allow easy gel formation under safe and mild conditions. Consequently, it is often used to encapsulate a variety of cargos, such as cells, enzymes, and lipids, and is typically employed as a model to study hydrogel-based encapsulation sys- tems. Since the first use of alginate in the encapsulation field in the 1970s, many methods have been developed to produce alginate hydrogel particles of different sizes, structures, and morphologies. This review provides an overview of the current progress in the fabrication of alginate hydrogels with vari- ous particle designs, including a discussion of dispersion techniques to pre-template alginate particles, gelation mechanisms, considerations in selecting suitable fabrication methods, and future directions.

关键词： Alginate lonotropic gelation Immobilization Encapsulation Hydrogel

Histopathological analysis of infiltrating T cell subsets in acute T cell-mediated rejection in the kidney transplant

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World Journal of Transplantation 2017年第4期7卷 222-234页

作者： Francisco Salcido-Ochoa Susan swee-Shan Hue Siyu peng Zhaoxiang Fan Reiko Lixiang Li Jabed Iqbal John Carson Allen Jr Alwin Hwai Liang Loh Tregs and HLA Research Force and Renal Medicine Department Singapore General Hospital Tregs and HLA Research Force and Department of Pathology National University Hospital Tregs and HLA Research Force and Yong Loo Lin School of Medicine National University of Singapore Department of Pathology and Laboratory Medicine KK Women’s and Children’s Hospital Department of Pathology Singapore General Hospital Centre for Quantitative Medicine Duke-NUS Graduate Medical School

AIM To compare the differential immune T cell subset com-position in patients with acute T cell-mediated rejection in the kidney transplant with subset composition in the absence of rejection, and to explore the association of their respective immune profiles with kidney transplant *** A pilot cross-sectional histopathological analysis of the immune infiltrate was performed using immunohistochemistry in a cohort of 14 patients with acute T cellmediated rejection in the kidney transplant and 7 kidney transplant patients with no rejection subjected to biopsy to investigate acute kidney transplant dysfunction. All patients were recruited consecutively from 2012 to 2014 at the Singapore General Hospital. Association of the immune infiltrates with kidney transplant outcomes at up to 54 mo of follow up was also explored *** In a comparison to the absence of rejection, acute T cell-mediated rejection in the kidney transplant was characterised by numerical dominance of cytotoxic T lymphocytes over Foxp3^+ regulatory T cells, but did not reach statistical significance owing to the small sample size in our pilot study. There was no obvious difference in absolute numbers of infiltrating cytotoxic T lymphocytes, Foxp3^+ regulatory T cells and Th17 cells between the two patient groups when quantified separately. Our exploratory analysis on associations of T cell subset quantifications with kidney transplant outcomes revealed that the degree of Th17 cell infiltration was significantly associated with shorter time to doubling of creatinine and shorter time to transplant *** Although this was a small pilot study, results support our suspicion that in kidney transplant patients the immune balance in acute T cell-mediated rejection is tilted towards the pro-rejection forces and prompt larger and more sophisticated studies.

关键词： Acute T cell-mediated rejection in the kidney transplant Banff classification Cytotoxic T cell Regulatory T cell Th17 cell

Causal inference with marginal structural modeling for longitudinal data in laparoscopic surgery: A technical note

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Laparoscopic, Endoscopic and Robotic Surgery 2022年第4期5卷 146-152页

作者： Zhongheng Zhang peng Jin Menglin Feng Jie Yang Jiajie Huang Lin Chen Ping Xu Jian Sun Caibao Hu Yucai Hong Department of Emergency Medicine Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhou 310016China Key Laboratory of Digital Technology in Medical Diagnostics of Zhejiang Province Hangzhou 310016China Key Laboratory of Precision Medicine in Diagnosis and Monitoring Research of Zhejiang Province Hangzhou 310016China Division of Biostatistics Department of Population HealthNew York University School of MedicineNew YorkNY 10023USA Saw swee Hock School of Public Health and Institute of Data Science National University of Singapore119077Singapore Department of Critical Care Medicine Jinhua Hospital Affiliated Zhejiang University School of MedicineJinhua 321000China Emergency Department Zigong Fourth People's HospitalZigong 643000China Institute of Medical Big Data Zigong Academy of Artificial Intelligence and Big Data for Medical Science Artificial IntelligenceZigong 643000China Key Laboratory of Sichuan Province Zigong 643000China Department of Critical Care Medicine Lishui Center HospitalLishui 323000China Department of Intensive Care Medicine Zhejiang HospitalHangzhou 310013China

Causal inference prevails in the field of laparoscopic *** the causality between an intervention and outcome is established,the intervention can be applied to a target population to improve clinical *** many clinical scenarios,interventions are applied longitudinally in response to patients’*** longitudinal data comprise static variables,such as age,gender,and comorbidities;and dynamic variables,such as the treatment regime,laboratory variables,and vital *** dynamic variables can act as both the confounder and mediator for the effect of an intervention on the outcome;in such cases,simple adjustment with a conventional regression model will bias the effect *** address this,numerous statistical methods are being developed for causal inference;these include,but are not limited to,the structural marginal Cox regression model,dynamic treatment regime,and Cox regression model with time-varying *** technical note provides a gentle introduction to such models and illustrates their use with an example in the field of laparoscopic surgery.

关键词： Causal inference Laparoscopic surgery Machine learning Marginal structural modeling

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傣药红花臭牡丹根饮片质量标准研究

中国民族民间医药 2022年第11期31卷 36-40页

作者：陆应彩彭霞李清卯明霞仁绍坤西双版纳州食品药品检验所云南景洪666100

目的:建立红花臭牡丹根饮片质量标准。方法:观察红花臭牡丹根性状和显微鉴别特征;参照《云南省中药材标准》(2005年版第三册·傣族药)及《中国药典》(2015年版四部)建立薄层鉴别方法;照《中国药典》(2015年版四部)测定水分、总灰分、酸... 详细信息

目的:建立红花臭牡丹根饮片质量标准。方法:观察红花臭牡丹根性状和显微鉴别特征;参照《云南省中药材标准》(2005年版第三册·傣族药)及《中国药典》(2015年版四部)建立薄层鉴别方法;照《中国药典》(2015年版四部)测定水分、总灰分、酸不溶性灰分、砷盐、重金属、有机氯农药残留量、浸出物;采用分光光度法通过线性关系、准确度、精密度、不同产地以及试验条件的考察来建立红花臭牡丹根中总黄酮的含量测定方法,检测波长为357 nm。结果:性状及鉴别方法专属性好,3个不同产地10批红花臭牡丹根饮片水分、总灰分、酸不溶性灰分、浸出物及总黄酮的含量的平均值分别为5.93%、2.24%、0.12%、13.57%、5.47%。砷盐均符合规定、重金属均小于百万分之十、有机氯农药残留量均未检出。结论:所建立方法可应用于红花臭牡丹根饮片的质量控制。

关键词：红花臭牡丹根饮片紫外分光光度法芦丁薄层色谱法质量标准

Abstracts from the 15th International Myopia Conference

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Eye and Vision 2016年第1期3卷 211-221页

作者： Alexandra Benavente-Perez Ann Nour Tobin Ansel Kathleen Abarr Luying Yan Keisha Roden David Troilo Chanyi Lu Miaozhen Pan Min Zheng Jia Qu Xiangtian Zhou Christine F. Wildsoet Fan Lu Jie Chen Jinhua Bao Liang Hu Qinmei Wang Zibing Jin Frances Rucker Stephanie Britton Stephan Hanowsky Molly Spatcher Hui-Ying Kuo Ching-Hsiu Ke I-Hsin Kuo Chien-Chun peng Han-Yin Sun Ian G. Morgan Jeremy A. Guggenheim Rupal L. Shah Cathy Williams Jinglei Yang Peter S. Reinach Sen Zhang Wenfeng Sun Bo Liu Fen Li Xiaoqing Li Aihua Zhao Tianlu Chen Wei Jia Jun Jiang Haoran Wu Kazuo Tsubota Hiroko Ozawa Hidemasa Torii Shigemasa Takamizawa Toshihide Kurihara Kazuno Negishi Klaus Graef Daniel Rathbun Frank Schaeffel Ladan Ghodsi William K. Stell Machelle T. Pardue Ranjay Chakraborty Han na Park Curran S. Sidhu P. Michael Iuvone Michael J Collins Nethrajeith Srinvasalu Sally A. McFadden Paul N. Baird Pablo Artal Pauline Cho SW Cheung Pei-Chang Wu Quan V. Hoang Duk C. Lee Erica G. Landis Michael A. Bergen Curran Sidhu Samer Hattar Richard A. Stone Ravi Metlapally Ruiqin Li Qinglin Xu Hong Zhong Chenglin Pan Weizhong Lan Xiaoning Li Ling Chen Zhikuan Yang Scott A. Read Seang-Mei Saw Shi-Jun Weng Xiao-Hua Wu Kang-Wei Qian Yun-Yun Li Guo-Zhong Xu Furong Huang Xiong-Li Yang Yong-Mei Zhong Earl L Smith, III Baskar Arumugam Li-Fang Hung Lisa A. Ostrin Klaus Trier Monica Jong Brien A. Holden Thomas Chuen Lam Samantha Shan Bing Zuo Dennis Yan-yin Tse Jingfang Bian King-Kit Li Quan Liu Chi-ho To Timothy J. Gawne John T. Siegwart, Jr. Alexander H. Ward Thomas T. Norton Yan Zhang Yue Liu Carol Ho Eileen Phan Abraham Hang Emily Eng Christine Wildsoet Department of Biological Sciences SUNY College of Optometry New York NY 10036 USA School of Optometry and Ophthalmology and Eye Hospital Wenzhou Medical University Wenzhou Zhejiang 325027 China Center for Eye Disease & Development School of Optometry & Vision Science Program University of California Berkeley Berkeley CA 94720-2020 USA Wenzhou Medical University Wenzhou Zhejiang 325027 China Biomedical Science and Disease New England College of Optom Boston MA USA School of Optometry Chung Shan Medical University Taichung City 402 Taiwan Institute of Medicine Chung Shan Medical University Taichung City 402 Taiwan Division of Biochemistry and Molecular Biology Research School of Biology Australian National University Canberra Australia State Key Laboratory of Ophthalmology and Division of Preventive Ophthalmology Zhongshan Ophthalmic Center Sun Yat-Sen University Guangzhou China School of Optometry & Vision Sciences Cardiff University Cardiff UK School of Social and Community Medicine University of Bristol Bristol UK School of and Eye Hospital Wenzhou Medical University Wenzhou Zhejiang 325027 China State Key Laboratory Cultivation Base and Key Laboratory of Vision Science Ministry of Health and Zhejiang Provincial Key Laboratory of Ophthalmology and Optometry Wenzhou Zhejiang 325027 People’s Republic of China Shanghai Key Laboratory of Diabetes Mellitus and Center for Translational Medicine Shanghai Jiao Tong University Affiliated Sixth People’s Hospital Shanghai 200233 China Eye Hospital of Wenzhou Medical University Wenzhou Zhejiang 325027 China Department of Ophthalmology Keio University School of Medicine Shinjuku-ku Tokyo 160-8582 Japan General Medicine Ichikawa Medical Center Urayasu City Chiba 279-0001 Japan Ophthalmic Research Institute University of Tuebingen 72076 Tuebingen Germany Bernstein Center for Computational Neuroscience Tuebingen 72076 Tuebingen Germany Werner Reichardt Centre for Integrative Neuroscience Otfried-Mueller-Straße 25 Tueb

To assess the peripheral refractive changes that occur when eye growth decelerates in *** We measured peripheral refraction and on-axis vitreous chamber depth on a total of 53 marmosets;36 treated monocularly for 12 weeks 9 hrs/day(26 with-5 D contact lenses,10 with+5 D)and 17 untreated *** the 26 marmosets treated with-5 D,10 wore contact lenses 9 hrs/day without interruptions and were mea-sured at the end of 10 weeks of treatment(T10)and after 4 weeks of recovery(R14).Eight had both contact lenses removed for 30 mins twice/day(mid-morning and mid-afternoon)during the first four weeks of treatment(early interruption group)and eight had the lenses removed during the second four weeks of treatment(late interruption group).The two interruption groups were measured after 4,8 and 12 weeks of treatment only(T4,T8,T12).

关键词： removed treatment untreated