Neuroendocrine pathways in alcohol use disorder: opportunities to develop biomarkers for alcohol craving?

1MiraCosta College, Oceanside, CA, US;

2Bunker Hill Community College, Boston, MA;

3Clinical Psychoneuroendocrinology and Neuropsychopharmacology Section, Translational Addiction Medicine Branch, National Institute on Drug Abuse Intramural Research Program and National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research, National Institutes of Health; Baltimore and Bethesda, MD, USA;

4Department of Behavioral and Social Sciences, Center for Alcohol and Addiction Studies, Brown University, Providence, RI, USA;

5Division of Addiction Medicine, Department of Medicine, School of Medicine, Johns Hopkins University; Baltimore, MD, USA;

6Department of Neuroscience, Georgetown University Medical Center; Washington DC, USA.

Recent research developments in the alcohol use disorder (AUD) field have prompted researchers to invest in novel approaches to evaluate alcohol craving. Neuroendocrine pathways portray activity within the central nervous system (CNS) with potential biomarkers that can be collected safely at the peripheral level. Traditionally, one of the most studied neuroendocrine systems, especially when applied to treating AUD, is the hypothalamus-pituitary-adrenocortical (HPA) axis; however, recently, there has been interest in the gut-liver-brain axis as appetite-related neuroendocrine pathways may affect alcohol craving. This narrative review reports on both preclinical and clinical studies to evaluate ghrelin and insulin as hormonal biomarkers to quantify craving and the recent research on glucagon-like-peptide 1 (GLP-1) receptor agonists, regarding them as potential treatment options for people with AUD. Collecting and measuring those hormones may offer the opportunity to investigate novel ways to investigate alcohol cravings. Those analytical measures could provide clinicians with novel critical information regarding the severity of a patient’s condition and, thus, be able to provide their patients with more personalized and effective treatments.

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Publication history:

Submission date: 16th Oct, 2023
Revised on: 9th Dec, 2023
Accepted on: 18th Jan, 2024
Published online: 2nd May, 2024

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