NMR-based Metabolomics and Fatty Acid Profiles to Unravel Biomarkers in Preclinical Animal Models of Compulsive Behavior

Compulsivity is a key manifestation of inhibitory control deficit and a cardinal symptom of psychopathological conditions such as obsessive-compulsive and attention-deficit hyperactivity disorders, in which metabolic alterations have raised attention as putative biomarkers for early identification. The present study assessed the metabolic profile in a preclinical model of a compulsive phenotype of rats. We used the schedule-induced polydipsia (SIP) method to classify male Wistar rats into high drinkers (HDs) or low drinkers (LDs) according to their compulsive drinking rate developed by exposure to a fixed-time 60 s (FT-60) schedule of reinforcement with water available ad libitum during 20 sessions. Before and after SIP, blood samples were collected for subsequent serum analysis by nuclear magnetic resonance spectroscopy coupled to multivariate analysis. Although no differences existed in the pre-SIP set, the compulsive drinking behavior induced remarkable metabolic alterations: HD rats selected by SIP exhibited a hyperlipidemic, hypoglycemic, and hyperglutaminergic profile compared with their low-compulsive counterparts. Interestingly, these alterations were not attributable to the mere exposure to reward pellets because a control experiment did not show differences between HDs and LDs after 20 sessions of pellet consumption without intermittent reinforcement. Our results shed light toward the implication of dietary and metabolic factors underpinning the vulnerability to compulsive behaviors.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:21

Enthalten in:

Journal of proteome research - 21(2022), 3 vom: 04. März, Seite 612-622

Sprache:

Englisch

Beteiligte Personen:

Abreu, Ana C [VerfasserIn]
Mora, Santiago [VerfasserIn]
Tristán, Ana Isabel [VerfasserIn]
Martín-González, Elena [VerfasserIn]
Prados-Pardo, Ángeles [VerfasserIn]
Moreno, Margarita [VerfasserIn]
Fernández, Ignacio [VerfasserIn]

Links:

Volltext

Themen:

Biomarkers
Compulsive behavior
Fatty Acids
Journal Article
Metabolomics
NMR
Research Support, Non-U.S. Gov't
Schedule-induced polydipsia

Anmerkungen:

Date Completed 19.04.2022

Date Revised 19.04.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1021/acs.jproteome.1c00857

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM336747519