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University of Queensland

10 ARTICLES PUBLISHED IN JoVE

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Behavior

Transcranial Direct Current Stimulation and Simultaneous Functional Magnetic Resonance Imaging
Marcus Meinzer 1,2, Robert Lindenberg 2, Robert Darkow 2, Lena Ulm 2, David Copland 1, Agnes Flöel 2
1Centre for Clinical Research, University of Queensland, 2Department of Neurology, NeuroCure Clinical Research Centre, and Centre for Stroke Research Berlin, Charité Universitätsmedizin

Transcranial direct current stimulation (tDCS) is a noninvasive brain stimulation technique. It has successfully been used in basic research and clinical settings to modulate brain function in humans. This article describes the implementation of tDCS and simultaneous functional magnetic resonance imaging (fMRI), to investigate the neural basis of tDCS effects.

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Developmental Biology

The Complete and Updated "Rotifer Polyculture Method" for Rearing First Feeding Zebrafish
Christian Lawrence 1, Jason Best 1, Jason Cockington 2, Eric C. Henry 3, Shane Hurley 1, Althea James 1, Christopher Lapointe 1, Kara Maloney 1, Erik Sanders 4
1Aquatic Resources Program, Boston Children's Hospital, 2UQ Biological Resources, University of Queensland, 3Reed Mariculture, 4Aquatics Lab Services

Larval zebrafish are adapted to feed on zooplankton. It is possible to capitalize on this natural feature in the laboratory by growing first feeding fish together in the same system with live saltwater rotifers. This "polyculture" strategy promotes high growth and survival with minimal labor and disturbance to the larvae.

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Medicine

Ovine Lumbar Intervertebral Disc Degeneration Model Utilizing a Lateral Retroperitoneal Drill Bit Injury
Kai-Zheong Lim *1, Christopher D. Daly *1,2,3, Peter Ghosh 4, Graham Jenkin 3, David Oehme 5, Justin Cooper-White 6,7, Taryn Naidoo 6, Tony Goldschlager 1,8
1Department of Surgery, Monash University, 2Department of Neurosurgery, Monash University, 3The Ritchie Centre, Hudson Institute of Medical Research, 4Proteobioactives, Pty Ltd, 5Department of Neurosurgery, St Vincent's Hospital, 6Australian Institute for Bioengineering and Nanotechnology, University of Queensland, 7School of Chemical Engineering, University of Queensland, 8Department of Neurosurgery, Monash Health

Intervertebral disc degeneration is a significant contributor to back pain and a leading cause of disability worldwide. Numerous animal models of intervertebral disc degeneration exist. We demonstrate an ovine model of intervertebral disc degeneration, utilizing a drill bit, which achieves a consistent disc injury and reproducible level of disc degeneration.

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Medicine

Contractility Measurements of Human Uterine Smooth Muscle to Aid Drug Development
Sarah Arrowsmith *1, Peter Keov 2, Markus Muttenthaler 3,4, Christian W. Gruber *2,5
1Harris-Wellbeing Preterm Birth Research Centre, Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, 2School of Biomedical Sciences, The University of Queensland, 3Faculty of Chemistry, Institute of Biological Chemistry, University of Vienna, 4Institute for Molecular Bioscience, University of Queensland, 5Center for Physiology and Pharmacology, Medical University of Vienna

This article describes experimental protocols to study ex vivo contractions of human myometrium and their application in drug discovery. This technique is used to improve the understanding of myometrial physiology and pathophysiology as well as to validate pharmacological data from novel research probes or drug leads.

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Chemistry

Chemical Synthesis of Porous Barium Titanate Thin Film and Thermal Stabilization of Ferroelectric Phase by Porosity-Induced Strain
Norihiro Suzuki 1,2, Minoru Osada 3, Motasim Billah 3,4, Yoshio Bando 3,4, Yusuke Yamauchi 5,6, Shahriar A. Hossain 3,4
1Research Institute for Science and Technology (RIST), Tokyo University of Science (TUS), 2International Center for Young Scientists (ICYS), National Institute for Materials Science (NIMS), 3International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 4Australian Institute for Innovative Materials (AIIM), University of Wollongong, 5School of Chemical Engineering, Australian Institute for Bioengineering and Nanotechnology (AIBN), University of Queensland, 6Department of Plant & Environmental New Resources, Kyung Hee University

Here, we present a protocol for the synthesis of porous barium titanate (BaTiO3) thin film by a surfactant-assisted sol-gel method, in which self-assembled amphipathic surfactant micelles are used as an organic template.

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Environment

A Novel Method for the Pentosan Analysis Present in Jute Biomass and Its Conversion into Sugar Monomers Using Acidic Ionic Liquid
Babasaheb M. Matsagar 1, Shahriar A. Hossain 2,3, Tofazzal Islam 4, Yusuke Yamauchi 2,3,5,6, Kevin C.-W. Wu 1
1Department of Chemical Engineering, National Taiwan University, 2International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 3Australian Institute for Innovative Materials (AIIM), University of Wollongong, 4Department of Biotechnology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, 5School of Chemical Engineering & Australian Institute for Bioengineering and Nanotechnology (AIBN), University of Queensland, 6Department of Plant and Environmental New Resources, Kyung Hee University

We present a protocol for the synthesis of C5 sugars (xylose and arabinose) from a renewable non-edible lignocellulosic biomass (i.e., jute) with the presence of Brønsted acidic ionic liquids (BAILs) as the catalyst in water. The BAILs catalyst exhibited better catalytic performance than conventional mineral acid catalysts (H2SO4 and HCl).

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Medicine

Absorbent Microbiopsy Sampling and RNA Extraction for Minimally Invasive, Simultaneous Blood and Skin Analysis
Benson U.W. Lei 1,2, Miko Yamada 1, Van L.T. Hoang 3, Paul J. Belt 4, Mark H. Moore 5, Lynlee L. Lin 2, Ross Flewell-Smith 1, Nhung Dang 1,2, Shoko Tomihara 2, Tarl W. Prow 1,2
1Future Industries Institute, University of South Australia, 2Faculty of Medicine, University of Queensland, 3Faculty of Health, Queensland University of Technology, 4Department of Plastic and Reconstructive Surgery, Princess Alexandra Hospital, 5Australian Craniofacial Unit, Women's and Children's Hospital

In this article, we demonstrate how the absorbent microbiopsy technique is performed and how the sample can be used for RNA extraction for simple and simultaneous sampling of skin and blood in a minimally invasive manner.

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Medicine

An Improved and High Throughput Respiratory Syncytial Virus (RSV) Micro-neutralization Assay
Lien Anh Ha Do 1,2, Reuben Tse 1, Jordan Nathanielsz 1, Jeremy Anderson 1, Darren Suryawijaya Ong 1, Keith Chappell 3, Kim Mulholland 1,2,4, Paul V. Licciardi 1,2
1Murdoch Children's Research Institute, 2Department of Paediatrics, University of Melbourne, 3School of Chemistry and Molecular Bioscience, University of Queensland, 4London School of Hygiene and Tropical Medicine

This study describes a high throughput, imaging-based micro-neutralization assay to determine the titer of neutralizing antibodies specific for respiratory syncytial virus (RSV). This assay format has been tested on different sample types.

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Developmental Biology

Real-time Live-cell Flow Cytometry to Investigate Calcium Influx, Pore Formation, and Phagocytosis by P2X7 Receptors in Adult Neural Progenitor Cells
Hannah C. Leeson 1,2, Tailoi Chan-Ling 3,4, Michael D. Lovelace 3,5,6, Jeremy D. Brownlie 7, Michael W. Weible II *1,4,7, Ben J. Gu *8
1Griffith Institute for Drug Discovery, Griffith University, 2Australian Institute for Bioengineering and Nanotechnology, University of Queensland, 3Discipline of Anatomy and Histology, School of Medical Science, University of Sydney, 4Bosch Institute, University of Sydney, 5Applied Neurosciences Program, Peter Duncan Neurosciences Research Unit, St. Vincent's Centre for Applied Medical Research, 6School of Medical Sciences, The University of New South Wales (UNSW) Medicine, Sydney, New South Wales, 7School of Environment and Science, Griffith University, Brisbane, Queensland, 8Florey Institute of Neuroscience and Mental Health, University of Melbourne

Providing single-cell sensitivity, real-time flow cytometry is uniquely suited to quantify multimodal receptor functions of live cultures. Using adult neural progenitor cells, the P2X7 receptor function was assessed via calcium influx detected by calcium indicator dye, transmembrane pore formation by ethidium bromide uptake, and phagocytosis using fluorescent latex beads.

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Bioengineering

Growth of Human and Sheep Corneal Endothelial Cell Layers on Biomaterial Membranes
Jennifer Walshe 1, Najla Al Khaled Abdulsalam 2, Shuko Suzuki 1, Traian V. Chirila 1,3,4,5,6,7,8, Damien G. Harkin 1,3,4
1Queensland Eye Institute, 2King Faisal University, 3School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, 4Institute of Health and Biomedical Innovation, Queensland University of Technology, 5Science and Engineering Faculty, Queensland University of Technology, 6Faculty of Medicine, University of Queensland, 7Australian Institute for Bioengineering and Nanotechnology, University of Queensland, 8Faculty of Science, University of Western Australia

This protocol describes the critical steps required to establish and grow corneal endothelial cell cultures from explants of human or sheep tissue. A method for subculturing corneal endothelial cells on membranous biomaterials is also presented.

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