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California Polytechnic State University

4 ARTICLES PUBLISHED IN JoVE

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Medicine

Murine Spinotrapezius Model to Assess the Impact of Arteriolar Ligation on Microvascular Function and Remodeling
Alexander Michael Guendel *1, Kyle S. Martin *1, Joshua Cutts 2, Patricia L. Foley 3, Alexander M. Bailey 1, Feilim Mac Gabhann 4, Trevor R. Cardinal 2, Shayn M. Peirce 1
1Department of Biomedical Engineering, University of Virginia, 2Department of Biomedical Engineering, California Polytechnic State University, 3Office of Animal Welfare, University of Virginia, 4Department of Biomedical Engineering & Institute for Computational Medicine, Johns Hopkins University

We demonstrate a novel arterial ligation model in murine spinotrapezius muscle, including a step-by-step procedure and description of required instrumentation. We describe the surgery and relevant outcome measurements relating to vascular network remodeling and functional vasodilation using intravital and confocal microscopy.

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Immunology and Infection

Development of a More Sensitive and Specific Chromogenic Agar Medium for the Detection of Vibrio parahaemolyticus and Other Vibrio Species
Marie Yeung 1, Trevor Thorsen 1
1Biological Sciences Department, California Polytechnic State University

Detection and isolation of clinically relevant Vibrio species require selective and differential culture media. This study evaluated the ability of a new chromogenic medium to detect and identify V. parahaemolyticus and other related species. The new medium was found to have better sensitivity and specificity than the conventional medium.

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Chemistry

Escherichia coli-Based Cell-Free Protein Synthesis: Protocols for a robust, flexible, and accessible platform technology
Max Z. Levine *1,2, Nicole E. Gregorio *2,3, Michael C. Jewett 4,5,6,7, Katharine R. Watts 2,3, Javin P. Oza 2,3
1Department of Biological Sciences, California Polytechnic State University, San Luis Obispo, 2Center for Applications in Biotechnology, California Polytechnic State University, San Luis Obispo, 3Department of Chemistry and Biochemistry, California Polytechnic State University, 4Department of Chemical and Biological Engineering, Northwestern University, 5Chemistry of Life Processes Institute, Northwestern University, 6Center for Synthetic Biology, Northwestern University, 7Interdisciplinary Biological Sciences Program, Northwestern University

This protocol details the steps, costs, and equipment necessary to generate E. coli-based cell extracts and implement in vitro protein synthesis reactions within 4 days or less. To leverage the flexible nature of this platform for broad applications, we discuss reaction conditions that can be adapted and optimized.

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JoVE Core

Microwave-Assisted Preparation of 1-Aryl-1H-pyrazole-5-amines
Jarvis Law *1, Aashrita Manjunath *1, Ryan Schioldager *1, Scott Eagon 1
1Department of Chemistry and Biochemistry, California Polytechnic State University

1-Aryl-1H-pyrazole-5-amines are prepared from aryl hydrazines combined with either 3-aminocrotononitrile or an α-cyanoketone in a 1 M HCl solution using a microwave reactor. Most reactions are done in 10-15 minutes and pure product can be obtained via vacuum filtration with typical isolated yields of 70-90%.

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