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Tongji University School of Medicine

19 ARTICLES PUBLISHED IN JoVE

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Chemistry

Laboratory Production of Biofuels and Biochemicals from a Rapeseed Oil through Catalytic Cracking Conversion
Siauw H. Ng 1, Yu Shi 1, Nicole E. Heshka 1, Yi Zhang 1, Edward Little 1
1CanmetENERGY, Natural Resources Canada

This paper presents an experimental method to produce biofuels and biochemicals from canola oil mixed with a fossil-based feed in the presence of a catalyst at mild temperatures. Gaseous, liquid, and solid products from a reaction unit are quantified and characterized. Conversion and individual product yields are calculated and reported.

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Behavior

An Automated Rapid Iterative Negative Geotaxis Assay for Analyzing Adult Climbing Behavior in a Drosophila Model of Neurodegeneration
Wenze Cao *1,2,3, Li Song *1,2,3, Jingjing Cheng 1,2,3, Na Yi 1,2,3, Luyi Cai 1,2,3, Fu-de Huang 4,5, Margaret Ho 1,2,3
1Research Center for Translational Medicine, Tongji University School of Medicine, 2Key Laboratory of Arrhythmias of the Ministry of Education of China, Shanghai East Hospital, Tongji University School of Medicine, 3Department of Anatomy and Neurobiology, Tongji University School of Medicine, 4Shanghai Advanced Research Institute, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 5Sino-Danish College, University of Chinese Academy of Sciences, Chinese Academy of Sciences

This step-by-step protocol analyzes Drosophila negative geotaxis behavior using an automated multi-cylinder system that hosts hundreds of flies and synchronizes their action by an electric motor. Upon synchronization, fly negative geotaxis behavior is assayed, digitally recorded, and analyzed using the self-designed RflyDetection software.

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Environment

Experimental Protocol for Detecting Mitochondrial Function in Hepatocytes Exposed to Organochlorine Pesticides
Qian Liu 1,2,3, Zhaoyan Jiang 3, Aihua Gu 1,2
1State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, 2Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, 3Center of Gallbladder Disease, Shanghai East Hospital, Institute of Gallstone Disease, Tongji University School of Medicine

Understanding the influence of environmental organochlorine pesticides (OCPs) on mitochondrial function in hepatocytes is important in exploring the mechanism of OCPs causing metabolic disorders. This paper presents detailed methods on detecting hepatic mitochondrial function.

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Behavior

Use of a Video Scoring Anchor for Rapid Serial Assessment of Social Communication in Toddlers
Natasha Marrus 1, Stefanie Kennon-McGill 1, Brooke Harris 2, Yi Zhang 1, Anne L. Glowinski 1, John N. Constantino 1
1Department of Psychiatry, Washington University School of Medicine, 2Veteran's Administration Palo Alto Health Care System

Here we present a protocol for administration of the video-referenced rating of reciprocal social behavior (vrRSB) using a paper or online version. This survey quantifies RSB, a prerequisite for social competence, in toddlers through "video-referenced" items whereby a subject is compared to a reference child shown in a three-minute video.

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JoVE Core

Measuring the Carotid to Femoral Pulse Wave Velocity (Cf-PWV) to Evaluate Arterial Stiffness
Hongwei Ji 1, Jing Xiong 1, Shikai Yu 1, Chen Chi 1, Bin Bai 1, Jiadela Teliewubai 1, Yuyan Lu 1, Yi Zhang 1, Yawei Xu 1
1Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine

This protocol describes a method to standardize the measurements of carotid-femoral pulse wave velocity to evaluate arterial stiffness.

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Cancer Research

Orthotopic Injection of Breast Cancer Cells into the Mice Mammary Fat Pad
Gan-Lin Zhang 1, Yi Zhang 1, Ke-Xin Cao 1, Xiao-Min Wang 1
1Oncology Department, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University

Here, we present a protocol to implant breast cancer cells into the mammary fat pad in a simple, less invasive, and easy-to-handle way, and this mouse orthotopic breast cancer model with a proper mammary fat pad environment can be used to investigate various aspects of cancer.

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Chemistry

Reactive Inkjet Printing and Propulsion Analysis of Silk-based Self-propelled Micro-stirrers
David A. Gregory 1, Piyush Kumar 1, Ana Jimenez-Franco 1, Yi Zhang 1, Yu Zhang  2, Stephen J. Ebbens 1, Xiubo Zhao 1
1Department of Chemical and Biological Engineering, University of Sheffield, 2School of Engineering, University of Liverpool

This protocol demonstrates the ability to utilize reactive inkjet printing to print self-motile biocompatible and environmentally friendly micro-stirrers for use in biomedical and environmental applications.

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Medicine

Precision Measurements and Parametric Models of Vertebral Endplates
Hang Feng 1, Zhu Ziqi 1, Yu Bin 1, Xiaoming Liu 1, Shenbei Duo 1, Surendra Kumar Chaudhary 1, Wu Tongde 1, Xinhua Li 1, Zhaoyu Ba 1, Desheng Wu 1
1Department of Spinal Surgery, Shanghai East Hospital, Tongji University School of Medicine

A reverse engineering system is employed to record and obtain detailed and comprehensive geometry data of vertebral endplates. Parametric models of vertebral endplate are then developed, which are beneficial to designing personalized spinal implants, making clinical diagnoses, and developing accurate finite element models.

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Biochemistry

Nitropeptide Profiling and Identification Illustrated by Angiotensin II
Shan Feng 1,2, Xiaofei Wen 3, Xin Lu 2,4,5,6
1Mass Spectrometry Core Facility, School of Life Sciences, Westlake University, 2Department of Biological Sciences, University of Notre Dame, 3Department of Urology, Shanghai East Hospital, Tongji University School of Medicine, 4Boler-Parseghian Center for Rare and Neglected Diseases, University of Notre Dame, 5Harper Cancer Research Institute, University of Notre Dame, 6Tumor Microenvironment and Metastasis Program, Indiana University Melvin and Bren Simon Cancer Center

Proteomic profiling of tyrosine-nitrated proteins has been a challenging technique due to the low abundance of the 3-nitrotyrosine modification. Here we describe a novel approach for nitropeptide enrichment and profiling by using Angiotensin II as the model. This method can be extended for other in vitro or in vivo systems.

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Chemistry

A Femtoliter Droplet Array for Massively Parallel Protein Synthesis from Single DNA Molecules
Yi Zhang 1, Kanako Kurosawa 1, Daisuke Nishiura 2, Mika Tei 1, Mikiko Tsudome 3
1SUGAR Program, X-star, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2Center for Mathematical Science and Advanced Technology, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 3Deep-Sea Nanoscience Research Group, Japan Agency for Marine-Earth Science and Technology (JAMSTEC)

The overall goal of the protocol is to prepare over one million ordered, uniform, stable, and biocompatible femtoliter droplets on a 1 cm2 planar substrate that can be used for cell-free protein synthesis.

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Immunology and Infection

Flow Cytometric Analysis of Lymphocyte Infiltration in Central Nervous System during Experimental Autoimmune Encephalomyelitis
Zhe Ji 1,2, Chenghua Zhou 1, Hongshen Niu 3, Jinshen Wang 1, Lei Shen 3
1Translational Medicine Research Center, Ruijin Hospital North, Shanghai Jiao Tong University School of Medicine, 2Department of Microbiology and Immunology, Tongji University School of Medicine, 3Shanghai Institute of Immunology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine

This manuscript presents a protocol to induce active experimental autoimmune encephalomyelitis (EAE) in mice. A method for the isolation and characterization of the infiltrated lymphocytes in the central nervous system (CNS) is also presented to show how lymphocytes are involved in the development of CNS autoimmune disease.

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Medicine

Evaluation of Color Difference in Placenta with Twin Anemia Polycythemia Sequence
Depeng Zhao 1, Lisanne S.A. Tollenaar 2, Femke Slaghekke 2, Dick Oepkes 2, Tao Duan 3, Enrico Lopriore 4
1Department of Reproductive Medicine, Affiliated Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, 2Division of Fetal Medicine, Department of Obstetrics, Leiden University Medical Center, 3Fetal Medicine Unit & Prenatal Diagnosis Center, Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, 4Division of Neonatology, Department of Pediatrics, Leiden University Medical Center

In monochorionic twins with twin anemia polycythemia sequence (TAPS), the donor twin and its corresponding placenta share are pale, while the recipient twin and its placental share have a plethoric aspect. Presented here is a protocol to quantify the color difference in maternal side of TAPS placenta after birth.

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Cancer Research

Three Differential Expression Analysis Methods for RNA Sequencing: limma, EdgeR, DESeq2
Shiyi Liu *1, Zitao Wang *1, Ronghui Zhu 1, Feiyan Wang 2, Yanxiang Cheng 1, Yeqiang Liu 2
1Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, 2Department of Pathology, Shanghai Skin Disease Hospital, Tongji University School of Medicine

A detailed protocol of differential expression analysis methods for RNA sequencing was provided: limma, EdgeR, DESeq2.

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Neuroscience

Real-Time Dynamic Collection of Hippocampal Extracellular Fluid from Conscious Rats Using a Microdialysis System
Xiaobo Wang 1,2, Na Xie 3, Yi Zhang 4, Xianli Meng 1,2,3, Ya Hou 3, Sanyin Zhang 1,2
1Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, 2Research Institute of Integrated TCM & Western Medicine, Chengdu University of Traditional Chinese Medicine, 3School of Pharmacy, Chengdu University of Traditional Chinese Medicine, 4School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine

The protocol here provides a detailed real-time dynamic sampling of extracellular fluid from the hippocampus of awake rats using a microdialysis system.

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Medicine

Dynamic Continuous Blood Extraction from Rat Heart via Noninvasive Microdialysis Technique
Ya Hou 1, Jinrong Bai 1,2, Yi Zhang 3, Xianli Meng 1,2,4, Sanyin Zhang 4, Xiaobo Wang 2
1School of Pharmacy, Chengdu University of Traditional Chinese Medicine, 2Research Institute of Integrated TCM & Western Medicine, Chengdu University of Traditional Chinese Medicine, 3School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, 4Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine

The present protocol describes a simple and efficient method for the real-time and dynamic collection of rat heart blood using the microdialysis technique.

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JoVE Core

An In Vitro Dissolution Determination of Multi-Index Components in Tibetan Medicine Rhodiola Granules
Qinyun Du 1, Qingxiu He 2, Fengming Zhang 3, Jiao Mi 3, Yuying Li 3, Shaohui Wang 1, Yi Zhang 1
1School of Pharmacy, Chengdu University of Traditional Chinese Medicine, 2School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, 3Tibet Rhodiola Pharmaceutical Holding Co. Ltd

Here, we test the dissolution of Rhodiola granules (RG) in vitro, draw dissolution curves of salidroside, gallic acid, and ethyl gallate in ultrapure water, and fit the curves to different mathematical models. This protocol provides information and guidance for in vivo bioequivalence and in vivo-in vitro correlation studies of RG.

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Bioengineering

Synthesis of Strong Adhesive Hydrogel, Gelatin O-Nitrosobenzaldehyde
Yuelong Liang *1,2, Zhengze Huang *1, Yi Zhang *3,4, Yi Hong 3,4, Qijiang Mao 1,2,5, Xu Feng 1
1Department of General Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 2Zhejiang Province Medical Research Center of Minimally Invasive Diagnosis and Treatment of Abdominal Diseases, 3Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, 4Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, 5Zhejiang Provincial Key Laboratory of Laparoscopic Technology

The protocol presented here shows the synthesis of a strong adhesive hydrogel gelatin o-nitrosobenzaldehyde (gelatin-NB). Gelatin-NB has rapid and efficient tissue adhesion ability, which can form a strong physical barrier to protect wound surfaces, so it is expected to be applied to the field of injury repair biotechnology.

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Medicine

Voltage-Dependent Potassium Current Recording on H9c2 Cardiomyocytes via the Whole-Cell Patch-Clamp Technique
Hong Jiang *1, Yating Zhang *1, Ya Hou 1, Lijun Li 2, Sanyin Zhang 3,4, Yi Zhang 5, Xianli Meng 1,3,4, Xiaobo Wang 4
1State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, 2Chengdu Techman Instrument Co., Ltd., 3Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, 4Research Institute of Integrated TCM & Western Medicine, Chengdu University of Traditional Chinese Medicine, 5School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine

The present protocol describes an efficient method for the real-time and dynamic acquisition of voltage-gated potassium (Kv) channel currents in H9c2 cardiomyocytes using the whole-cell patch-clamp technique.

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Medicine

A Suture Technique for Ruptured Annulus Fibrosus Following Decompression Under Percutaneous Transforaminal Endoscopic Discectomy
Zhouyang Hu *1,2, Zhipeng Xu *1,2, Hong Wang 1,2, Xiaoling Zhang 1,2, Lijun Li 3, Guoxin Fan 1,2, Xiang Liao 1,2
1Department of Pain Medicine, Huazhong University of Science and Technology Union Shenzhen Hospital, 2Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Shenzhen University Medical School, 3Department of Spine Surgery, Shanghai East Hospital, Tongji University School of Medicine

This protocol describes an innovative suture technique for ruptured annular fibrosus during percutaneous transforaminal endoscopic discectomy.

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