Challenges and New Opportunities for Detecting Endogenous Opioid Peptides in Reward

Overview

Journal Addict Neurosci

Date 2022 Jun 13

PMID 35693759

Authors

Sineadh M Conway

Marwa O Mikati

Ream Al-Hasani

Affiliations

Soon will be listed here.

Abstract

The endogenous opioid peptide system, comprised of enkephalins, endorphins, dynorphins, and nociceptin, is a highly complex neurobiological system. Opioid peptides are derived from four precursor molecules and undergo several processing events yielding over 20 unique opioid peptides. This diversity together with low concentration and complex processing and release dynamics has challenged research into each peptide's unique function. Despite the subsequent challenges in detecting and quantifying opioid peptides , researchers have pioneered several techniques to directly or indirectly assay the roles of opioid peptides during behavioral manipulations. In this review, we describe the limitations of the traditional techniques used to study the role of endogenous opioid peptides in food and drug reward and bring focus to the wealth of new techniques to measure endogenous opioid peptides in reward processing.

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