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Jorge E. Ortega

4 papers in the library · 141 citations · publishing 2022-2025

Papers

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Evaluation of behavioural and neurochemical effects of psilocybin in mice subjected to chronic unpredictable mild stress

Translational Psychiatry June 14, 2025 Ines Erkizia-Santamaría, Igor Horrillo, Nerea Martínez-Álvarez et al. 16 citations

Abstract Depression and anxiety are disabling and high incidence mental disorders characterized by phenotypic heterogeneity. Currently available treatments show severe limitations. Thus, there is an urgent need for effective treatments in this population. In the search for novel rapid-acting antidepressants, the psychedelic psilocybin has emerged as a promising therapy in several clinical...

Role of endogenous serotonin in psychedelic-like effects of psilocybin in mice

The International Journal of Neuropsychopharmacology May 25, 2025 Ines Erkizia-Santamaría, Nerea Martínez-Álvarez, Leyre Salinas-Novoa et al. 7 citations

Abstract Background The psychedelic psilocybin has been posited as efficacious for the treatment of depression. However, the potential link between the intensity of acute psychedelic effects and long-term therapeutic outcomes remains undiscovered. Moreover, the impact of classical antidepressant drugs that modulate serotonergic activity on psilocybin’s effects is a clinically relevant concern....

Clinical and preclinical evidence of psilocybin as antidepressant. A narrative review

Progress in Neuro-psychopharmacology and Biological Psychiatry 2025 Ines Erkizia-Santamaría, Igor Horrillo, J. Javier Meana et al. 10 citations

In the rapidly growing field of psychedelic research, psilocybin (and active metabolite psilocin) has been proposed as a promising candidate in the search for novel treatments for neuropsychiatric disorders. Clinical trials have revealed that psilocybin has a large, rapid, and persistent effect in the improvement of symptoms of depression and anxiety. The safety profile is considered...

Serotonin 5-HT2A, 5-HT2c and 5-HT1A receptor involvement in the acute effects of psilocybin in mice. In vitro pharmacological profile and modulation of thermoregulation and head-twich response

Biomedicine & Pharmacotherapy August 29, 2022 Ines Erkizia-Santamaría, R. Alles-Pascual, Igor Horrillo et al. 108 citations

The psychedelic 5-HT2A receptor (5HT2AR) agonist psilocybin (or the active metabolite psilocin) has emerged as potential useful drug for various neuropsychiatric diseases, with a rapid onset of therapeutic activity. However, the mechanisms responsible for such effects remain incompletely characterized. We aimed to study in vitro pharmacological profile and in vivo acute mechanism of...