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Ewa Litwa

4 papers in the library · 36 citations · publishing 2023-2025

Papers

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The antidepressant-like activity of ketamine in the rat chronic mild stress model requires activation of cortical 5-HT 1A receptors.

Behavioural Pharmacology June 1, 2025 Ronan Depoortère, Mariusz Papp, Piotr Gruca et al. 2 citations

Ketamine displays efficacious rapid-acting antidepressant (RAAD) activity in the rat chronic mild stress (CMS) model. It rapidly reverses anhedonia (CMS-induced sucrose consumption deficit) and attenuates working memory deficit (novel object recognition: NOR) following both systemic (intraperitoneal, i.p.) administration or local administration in the prefrontal cortex (PFC). However, the...

Trends in research on novel antidepressant treatments.

Frontiers in Pharmacology 2025 Agnieszka Zelek-Molik, Ewa Litwa 19 citations

Mood disorders, such as major depressive disorder and bipolar disorder, are among the most common mental illnesses and a leading cause of disability worldwide. Key symptoms of these conditions include a depressed mood or anhedonia, sleep and psychomotor disturbances, changes in appetite or weight, and fatigue or loss of energy. Prolonged cognitive disturbances further impair the ability to...

The 5-HT1A receptor biased agonists, NLX-204 and NLX-101, like ketamine, elicit rapid-acting antidepressant activity in the rat chronic mild stress model via cortical mechanisms.

Journal of psychopharmacology (Oxford, England) July 1, 2024 Mariusz Papp, Piotr Gruca, Ewa Litwa et al. 15 citations

The highly selective 5-HT1A serotonin receptor "biased" agonists NLX-101 and NLX-204 display, like ketamine, potent and efficacious rapid-acting antidepressant (RAAD) activity in the rat chronic mild stress (CMS) model with systemic (i.p.) administration. They rapidly (within 1 day) reverse anhedonia (i.e., CMS-induced sucrose consumption deficit), attenuate working memory deficit (novel object...

The 5-HT1A receptor biased agonists, NLX-204 and NLX-101, display ketamine-like RAAD and anti-TRD activities in rat CMS models

Psychopharmacology June 13, 2023 Mariusz Papp, Piotr Gruca, Magdalena Lason et al.

NLX-101 and NLX-204 are highly selective serotonin 5-HT1A ‘biased’ agonists, displaying potent and efficacious antidepressant-like activity upon acute administration in models such as the forced swim test. we compared the effects of repeated administration of NLX-101, NLX-204 and ketamine in the chronic mild stress (CMS) model of depression, considered to have high translational potential, on...