High Throughput Danio Rerio Energy Expenditure Assay

Overview

This study presents a high throughput assay using a NADH2 sensitive redox indicator, alamar Blue, to measure the metabolic rate of zebrafish larvae. This method is applicable for drug or gene discovery in the context of energy homeostasis research.

Key Study Components

Area of Science

• Neuroscience
• Biology
• Metabolism

Background

• Zebrafish are a key model organism for studying metabolic processes.
• The assay focuses on monitoring NADH2 production as an indicator of metabolic rate.
• It addresses important questions in obesity research.
• The method allows for high throughput screening of genetic and pharmacological effects.

Purpose of Study

• To develop a reliable assay for measuring metabolic rates in zebrafish larvae.
• To evaluate the effects of drugs and genes on metabolism.
• To facilitate the screening of drug-drug and drug-gene interactions.

Methods Used

• Preparation of a 60X stock solution of E3 medium.
• Dilution of the stock solution to create 1X E3 medium.
• Utilization of a resazurin-based fluorometric assay.
• Monitoring NADH2 production over time to detect metabolic changes.

Main Results

• The assay allows for the detection of small differences in metabolic rates.
• It provides a high throughput alternative to traditional oxygen consumption assays.
• Results can inform on the metabolic impacts of various genetic and pharmacological interventions.
• Demonstrated by a graduate student in a laboratory setting.

Conclusions

• This assay is a valuable tool for metabolic research in zebrafish.
• It enhances the ability to screen for potential therapeutic interventions.
• The method's high throughput capability is a significant advantage.

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