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North Carolina State University & University of North Carolina at Chapel Hill

5 ARTICLES PUBLISHED IN JoVE

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Neuroscience

An Optic Nerve Crush Injury Murine Model to Study Retinal Ganglion Cell Survival
Zhongshu Tang 1, Shuihua Zhang 1,2, Chunsik Lee 1, Anil Kumar 1, Pachiappan Arjunan 1, Yang Li 1, Fan Zhang 1, Xuri Li 1
1National Eye Institute, NIH, 2Ophthalmology Department, The Second Hospital of Harbin Medical University

This protocol shows how to retrogradely label retinal ganglion cells, and how to subsequently make an optic nerve crush injury in order to analyze retinal ganglion cell survival and apoptosis. It is an experimental disease model for different types of optic neuropathy, including glaucoma.

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Medicine

A Mouse Model of the Cornea Pocket Assay for Angiogenesis Study
Zhongshu Tang 1, Fan Zhang 1, Yang Li 1, Pachiappan Arjunan 1, Anil Kumar 1, Chunsik Lee 1, Xuri Li 1
1National Eye Institute

The cornea is unique in that it lacks vascular tissues. However, robust blood vessel growth and survival can be induced in the cornea by potent angiogenic factors. Therefore, the cornea can provide with us a valuable tool for angiogenic studies. This protocol demonstrates how to perform the mouse model of cornea pocket assay and how to assess the angiogenesis induced by angiogenic factors using this model.

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Bioengineering

Engineering Platform and Experimental Protocol for Design and Evaluation of a Neurally-controlled Powered Transfemoral Prosthesis
Fan Zhang 1, Ming Liu 1, Stephen Harper 2,3, Michael Lee 3, He Huang 1
1Joint Department of Biomedical Engineering, North Carolina State University & University of North Carolina at Chapel Hill, 2Department of Physical Medicine and Rehabilitation, University of North Carolina School of Medicine, 3Atlantic Prosthetics & Orthotics, LLC

Neural-machine interfaces (NMI) have been developed to identify the user's locomotion mode. These NMIs are potentially useful for neural control of powered artificial legs, but have not been fully demonstrated. This paper presented (1) our designed engineering platform for easy implementation and development of neural control for powered lower limb prostheses and (2) an experimental setup and protocol in a laboratory environment to evaluate neurally-controlled artificial legs on patients with lower limb amputations safely and efficiently.

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Medicine

Photoselective Vaporesection of the Prostate via an End-firing Lithium Triborate Crystal Laser
Xin Wang  1, Yao-Guang Zhang 1, Sheng-Cai Zhu 1, Ben Wan 1, Ming Liu 1, Jian-Ye Wang 1
1Department of Urology, Beijing Hospital, National Center of Gerontology

Here we present a protocol to perform Photoselective Vaporesection of the Prostate (PVRP) for benign prostatic hyperplasia (BPH) treatment.

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Medicine

Technical Modification of the Terminal Ureter During Total Transperitoneal Laparoscopic Nephroureterectomy for Upper Urinary Tract Urothelial Carcinoma
Chunlong Fu *1,2, Yaqun Zhang *1, Xin Wang 1, Shengcai Zhu 1, Huimin Hou 1, Shengjie Liu 1, Cheng Pang 1, Xinda Song 1, Jia Chen 1, Jianye Wang 1, Ming Liu 1,2
1(Urology) Beijing Hospital, National Center of Gerontology, The Joint Unit of the Chinese Academy of Medical Sciences, 2Graduate School of Peking Union Medical College, Beijing Hospital

Here, we present a protocol to increase the surgical field of view and reduce the difficulty of total transperitoneal laparoscopic nephroureterectomy surgery by precutting the umbilical ligament before treating the terminal ureter.

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