Differential effects of amphetamine on ultrasonic vocalizations and locomotor activity in a rat model of endogenous depression

Banjac, Anamarija (avtor), Elersič, Kristian (avtor), Živin, Marko (avtor), Zorović, Maja (avtor)

The Wistar-Kyoto rat strain (WKY) is a model for treatment-resistant depression, exhibiting behaviors indicative of anhedonia. Although anhedonia is measured using the sucrose preference test (SPT), 50-kHz ultrasonic vocalizations (USVs) hold promise as a complementary assessment tool. This study aimed to detect whether 50-kHz USVs differ in the WKY rats compared to control Wistar (W) rats. First, WKY and W rats were compared for their basal 50-kHz calls. Then, rats were repeatedly treated with four administrations of either amphetamine (AMPH) or morphine (MORPH), and 50-kHz calls were recorded. In addition, the drug-evoked locomotor activity, sucrose consumption in the SPT, and the time spent in the drug- vs. saline-paired compartment in the conditioned place preference (CPP) test were collected. WKY rats emitted fewer basal calls and fewer calls following the first and the fourth AMPH administration. Contrary to controls, AMPH did not affect the number of calls in WKY rats following the first administration. WKY also displayed reduced AMPH-induced locomotor activity and sucrose consumption in the SPT. MORPH did not affect USVs or locomotion in either strain. The results highlight the benefits of 50-kHz calls as a complementary behavioral marker for assessing anhedonia in preclinical models of depression.

• Jezik: Angleški jezik
• Ključne besede: Wistar-Kyoto rat, ultrasonic vocalizations, anhedonia, amphetamine, morphine
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: MF - Medicinska fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2025
• Št. strani: 17 str.
• Številčenje: Vol. 15, art. 43328
• PID: 20.500.12556/RUL-178104
• UDK: 616-092
• ISSN pri članku: 2045-2322
• DOI: 10.1038/s41598-025-27298-x
• COBISS.SI-ID: 264750339
• Datum objave v RUL: 19.01.2026

Gradivo je del revije

• Naslov: Scientific reports
• Skrajšan naslov: Sci. rep.
• Založnik: Springer Nature
• ISSN: 2045-2322
• COBISS.SI-ID: 18727432

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: podgana Wistar-Kyoto, ultrazvočne vokalizacije, anhedonia, amfetamin, morfin

Projekti

• Financer: ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
• Številka projekta: P3-0171
• Naslov: Plastičnost živčevja v fizioloških in patofizioloških razmerah

• Financer: ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
• Številka projekta: Young Researcher program
• Naslov: Young Researcher program