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High-fat diet-induced obesity increases resilience against gram-negative bacterial infection in Drosophila larvae

Author: Marvin Huynhle
Publisher: [Long Beach, California] : California State University, Long Beach, 2017.
Dissertation: M.S. California State University, Long Beach 2017
Series: California State University, Long Beach.; Master's thesis collection, Department of Biological Sciences.
Edition/Format:   Thesis/dissertation : Document : Thesis/dissertation : eBook   Computer File : English
Summary:
Abstract: Obesity is known to lower the quality of life of organisms and much effort has gone towards reporting the interactions between obesity and the immune response with one example being the metabolic syndrome caused by obesity-related inflammation. Work using Drosophila has shown high-fat diets affect cardiac function, lifespan, and glucose homeostasis. To determine whether metabolic syndrome can be modeled in  Read more...
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Details

Genre/Form: Academic theses
Material Type: Document, Thesis/dissertation, Internet resource
Document Type: Internet Resource, Computer File
All Authors / Contributors: Marvin Huynhle
ISBN: 9781339687452 1339687453
OCLC Number: 1008968092
Description: 1 online resource (viii, 65 pages) : color illustrations
Series Title: California State University, Long Beach.; Master's thesis collection, Department of Biological Sciences.
Responsibility: by Marvin Huynhle.

Abstract:

Abstract: Obesity is known to lower the quality of life of organisms and much effort has gone towards reporting the interactions between obesity and the immune response with one example being the metabolic syndrome caused by obesity-related inflammation. Work using Drosophila has shown high-fat diets affect cardiac function, lifespan, and glucose homeostasis. To determine whether metabolic syndrome can be modeled in flies, Drosophila melanogaster were raised on a high fat diet. Several parameters of the stress and immune responses were assayed in the presence and absence of infection using Gram-negative bacterium, Serratia marcescens. This study found that a high fat diet increased expression of cytochrome oxidase C subunit COX4L. High fat larvae had a reduced bacterial load, higher expression of the antimicrobial peptide Diptericin, and improved survival rate following acute infection. This study supports using Drosophil a as a model to improve understanding of metabolic-immune interactions and reports antimicrobial benefits from a high fat diet.

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