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Western University of Health Sciences

8 ARTICLES PUBLISHED IN JoVE

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Neuroscience

Screening Assay for Oxidative Stress in a Feline Astrocyte Cell Line, G355-5
Maria Pia Testa 1, Omar Alvarado 1, Andrea Wournell 1, Jonathan Lee 2, Frederick T. Guilford 3, Steven H. Henriksen 2, Tom R. Phillips 1,2
1College of Veterinary Medicine, Western University of Health Sciences, 2Graduate College of Biomedical Sciences, Western University of Health Sciences, 3ReadiSorb, Products

A screening method to detect oxidative cellular environments is to measure the oxidation of CM-H2DCFDA. Once oxidized within a cell, CM-H2DCFDA changes from non-fluorescent into a fluorescent compound. This change in fluorescence is measured by flow cytometry and indicates the number of cells in an oxidative environment.

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Biology

Imaging and 3D Reconstruction of Cerebrovascular Structures in Embryonic Zebrafish
Douglas W. Ethell 1,2,3, D. Joshua Cameron 1,4
1Molecular Neurobiology, Western University of Health Sciences, 2Graduate College of Biomedical Sciences, Western University of Health Sciences, 3College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, 4College of Optometry, Western University of Health Sciences

Imaging of cerebrovascular development in larval zebrafish is described. Techniques to facilitate 3D imaging and modify cerebrovascular development using chemical treatments are also provided.

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Neuroscience

The Optokinetic Response as a Quantitative Measure of Visual Acuity in Zebrafish
Donald Joshua Cameron 1,2, Faydim Rassamdana 1, Peony Tam 1, Kathleen Dang 1, Carolina Yanez 3, Saman Ghaemmaghami 3, Mahsa Iranpour Dehkordi 3
1College of Optometry, Western University of Health Sciences, 2Molecular Neurobiology Group, Western University of Health Sciences, 3Graduate College of Biomedical Sciences, Western University of Health Sciences

Zebrafish have been a valuable tool for many research areas. Here we demonstrate a method to elicit a visual response and calculate a functional visual acuity in the adult zebrafish.

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Cancer Research

Fluorescent Orthotopic Mouse Model of Pancreatic Cancer
Jonathan A. Moreno 1, Antonio Sanchez 2, Robert M. Hoffman 3,4, Saima Nur 1, Maria P. Lambros 1
1College of Pharmacy, Western University of Health Sciences, 2UVP, LLC, 3Department of Surgery, School of Medicine, University of California San Diego, 4Anticancer Inc.

A procedure to implant green fluorescent protein-expressing pancreatic cancer cells (PANC-1 GFP) orthotopically into the pancreas of Balb-c Ola Hsd-Fox1nu mice to assess tumor progression and metastasis is presented here.

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Medicine

Evaluation of Stem Cell Therapies in a Bilateral Patellar Tendon Injury Model in Rats
John R. Wagner 1, Takashi Taguchi 1, Jane Y. Cho 2, Chandrashekhar Charavaryamath 3, Dominique J. Griffon 1
1College of Veterinary Medicine, Western University of Health Sciences, 2Applied Medical, 3College of Veterinary Medicine, Iowa State University

This paper describes the preparation and evaluation of umbilical cord matrix-derived mesenchymal stem cells spheroids with a bilateral patellar tendon defect model in a rat. This model was associated with an acceptable morbidity and was found to detect differences between untreated and treated tendons, and between the two treatments tested.

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Behavior

Methodology for Establishing a Community-Wide Life Laboratory for Capturing Unobtrusive and Continuous Remote Activity and Health Data
Jeffrey Kaye 1, Christina Reynolds 1, Molly Bowman 1, Nicole Sharma 1, Thomas Riley 1, Ona Golonka 1, Jonathan Lee 1, Charlie Quinn 1, Zachary Beattie 1, Johanna Austin 1, Adriana Seelye 1, Katherine Wild 1, Nora Mattek 1
1Department of Neurology, ORCATECH - Oregon Center for Aging & Technology, Oregon Health & Science University

Unobtrusive sensors and pervasive computing technology incorporated into the daily home life of older adults enables meaningful health and activity changes to be recorded continuously for months to years, providing ecologically valid, high frequency, multi-domain data for research or clinical use.

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JoVE Journal

Multiplexing Focused Ultrasound Stimulation with Fluorescence Microscopy
Jerome J. Lacroix 1, Alper D. Ozkan 1
1Graduate College of Biomedical Sciences, Western University of Health Sciences

Low-Intensity Pulsed Ultrasound Stimulation (LIPUS) is a modality for non-invasive mechanical stimulation of endogenous or engineered cells with high spatial and temporal resolution. This article describes how to implement LIPUS to an epi-fluorescence microscope and how to minimize acoustic impedance mismatch along the ultrasound path to prevent unwanted mechanical artefacts.

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Medicine

Measurement of Carotenoids in Perifovea using the Macular Pigment Reflectometer
Juan C. Sanabria 1, Jordan Bass 1, Frank Spors 1, Dennis L. Gierhart 2, Pinakin Gunvant Davey 1
1College of Optometry, Western University of Health Sciences, 2ZeaVision LLC

We present a protocol to determine the levels of overall macular pigment, lutein, and zeaxanthin optical density in the central and parafoveal regions of the retina. The protocol includes a novel adjustable track system used to measure macular pigment optical density in the foveal eccentricity.

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