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The Rehabilitation Medicine Lab of Guangzhou Medical University

6 ARTICLES PUBLISHED IN JoVE

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JoVE Core

Fabrication and Operation of a Nano-Optical Conveyor Belt
Jason Ryan 1, Yuxin Zheng 1, Paul Hansen 1, Lambertus Hesselink 2
1Electrical Engineering, Stanford University, 2Applied Physics, Stanford University

The scalability and resolution of conventional optical manipulation techniques are limited by diffraction. We circumvent the diffraction limit and describe a method of optically transporting nanoparticles across a chip using a gold surface patterned with a path of closely spaced C-shaped plasmonic resonators.

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Developmental Biology

A Familial Hypercholesterolemia Human Liver Chimeric Mouse Model Using Induced Pluripotent Stem Cell-derived Hepatocytes
Jiayin Yang *1,2,6, Lai-Yung Wong *2, Xiao-Yu Tian *3, Rui Wei 1,2, Wing-Hon Lai 2, Ka-Wing Au 2, Zhiwei Luo 4,5, Carl Ward 4,5, Wai-In Ho 2, David P. Ibañez 4,5, Hao Liu 4,5, Xichen Bao 4,5, Baoming Qin 4,5, Yu Huang 3, Miguel A. Esteban 4,5,7, Hung-Fat Tse 1,2,6,7
1Department of Medicine, University of Hong Kong-Shenzhen Hospital, 2The Cardiology Division, Department of Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, 3School of Biomedical Sciences, Institute of Vascular Medicine, Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong, 4Key Laboratory of Regenerative Biology of the Chinese Academy of Sciences, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health and Guangzhou Medical University, 5Laboratory of RNA, Chromatin, and Human Disease, CAS Key Laboratory of Regenerative Biology and Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 6Research Centre of Heart, Brain, Hormone, and Healthy Ageing, Li Ka Shing Faculty of Medicine, University of Hong Kong, 7Hong Kong-Guangdong Stem Cell and Regenerative Medicine Research Centre, University of Hong Kong and Guangzhou Institutes of Biomedicine and Health

Here, we present a protocol to generate a human liver chimeric mouse model of familial hypercholesterolemia using human induced pluripotent stem cell-derived hepatocytes. This is a valuable model for testing new therapies for hypercholesterolemia.

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Medicine

The Lower Body Positive Pressure Treadmill for Knee Osteoarthritis Rehabilitation
Junjie Liang *1,2, Yuanyuan Guo *1,2, Yuxin Zheng 1,2, Shijuan Lang 1, Hongxin Chen 1,2, Yaoyao You 1,2, Bryan O’Young 3,4, Haining Ou *1,2, Qiang Lin *1,2
1Department of Rehabilitation, The Fifth Affiliated Hospital of Guangzhou Medical University, 2Experiment Education Model Center of Rehabilitation Medicine, Guangzhou Medical University, 3Department of Physical Medicine and Rehabilitation, Geisinger Health System, 4Department of Rehabilitation Medicine, New York University School of Medicine

Here, based on a clinician’s point-of-view, we propose a two-model lower body positive pressure (LBPP) protocol (walking and squatting models) in addition to a clinical, functional assessment methodology, including details for further encouragement of the development of non-drug surgical intervention strategies in knee osteoarthritis patients. However, we only present the effect of LBPP training in improvement of pain and knee function in one patient through three-dimensional gait analysis. The exact, long-term effects of this approach should be explored in future studies.

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Behavior

Quantitative Static and Dynamic Assessment of Balance Control in Stroke Patients
Qiang Lin *1,2,3,4, Yuxin Zheng *1,2,3,4, Peixi Lian 3,4, Yuanyuan Guo 1,3,4, Haojie Huang 5, Zhiwei Luo 1,2, Wanying Li 1,2, Hongxin Chen 1,2,3,4, Sufen Li 1, Shijuan Lang 1,2,4, Yumei Chen 6, Haining Ou *1,2,3,4, Junjie Liang *1,2,3,4
1Department of Rehabilitation, The Fifth Affiliated Hospital of Guangzhou Medical University, 2The Rehabilitation Medicine Lab of Guangzhou Medical University, 3Experiment Education Model Center of Rehabilitation Medicine, Guangzhou Medical University, 4Department of Rehabilitation Therapy, Guangzhou Medical University, 5College of Physical Education and Sports, Beijing Normal University, 6Department of Rehabilitation, Nanfang Hospital, Southern Medical University

Presented here is a quantitative, clinical balance assessment method suitable for stroke patients with balance disorders.

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Behavior

Effects of Surgical Masks on Cardiopulmonary Function in Healthy Subjects
Mei Li *1,2,4, Haining Ou *1,2,3,4, Qinyi Li 1,2,4, Junjie Liang 1,2,4, Weihao Liao 1,2,4, Shijuan Lang 1,2,4, Hongxin Chen 1,2,4, Yafei Wang 5, Kun Tang 1,2,4, Qiang Lin *1,2,3,4, Yuxin Zheng *1,2,4
1Department of Rehabilitation Medicine, The Fifth Affiliated Hospital of Guangzhou Medical University, 2The Rehabilitation Medicine Lab of Guangzhou Medical University, 3Guangzhou Key Laboratory of Enhanced Recovery after Abdominal Surgery, The Fifth Affiliated Hospital of Guangzhou Medical University, 4Department of Rehabilitation Therapy, Guangzhou Medical University, 5Department of Rehabilitation Medicine, The Sixth Affiliated Hospital of Sun Yat-sun University

We study the effect of surgical masks on cardiopulmonary function based on a cardiopulmonary exercise test (CPET). This study shows that surgical masks reduce cardiopulmonary exercise capacity and ventilation in healthy young subjects and wearing masks might affect aerobic exercise capacity more in female subjects than in male subjects.

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Developmental Biology

Using Chicken Embryo as a Powerful Tool in Assessment of Developmental Cardiotoxicities
Qixiao Jiang 1, Xiaohui Xu 1, Jamie C. DeWitt 2, Yuxin Zheng 1
1School of Public Health, Qingdao University, 2Department of Pharmacology & Toxicology, Brody School of Medicine, East Carolina University

Chicken embryos, as a classical developmental model, are used in our lab to assess developmental cardiotoxicities following exposure to various environmental contaminants. Exposure methods and morphological/functional assessment methods established are described in this manuscript.

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