Neuroscience & Biobehavioral Reviews
September 20, 2024
Isabel Werle, Leandro J Bertoglio
17 citations
Threatening events and stressful experiences can lead to maladaptive memories and related behaviors. Existing treatments often fail to address these issues linked to anxiety/stress-related disorders effectively. This review identifies dose ranges associated with specific actions across various psychedelics. We examined psilocybin/psilocin, lysergic acid diethylamide (LSD),...
Diseases
September 16, 2024
Zuzanna Antos, Klaudia Zackiewicz, Natalia Tomaszek et al.
9 citations
Anxiety disorders significantly reduce patients' quality of life. Current pharmacological treatments, primarily benzodiazepines and antidepressants, are associated with numerous side effects. Consequently, there is a continual search for alternative methods to traditional therapies that are less burdensome for patients and broaden their therapeutic options. Our objective was to determine the...
medRxiv Preprint Server
September 10, 2024
Kristin L Dawson, Athena May Jean M. Carangan, Jessica Klunder et al.
4 citations
preprint
Major depressive disorder (MDD) and posttraumatic stress disorder (PTSD) are debilitating psychiatric conditions associated with poor health outcomes similarly observed in non-pathological aging. Ketamine is a dissociative anesthetic and NMDA receptor antagonist with demonstrated rapid reduction in symptoms associated with Treatment Resistant Depression (TRD) and PTSD. Ketamine’s effects on...
ACS Chemical Neuroscience
August 1, 2024
Samuel C Woodburn, Caleb M. Levitt, Allison M Koester et al.
28 citations
A variety of classic psychedelics and MDMA have been shown to enhance fear extinction in rodent models. This has translational significance because a standard treatment for post-traumatic stress disorder (PTSD) is prolonged exposure therapy. However, few studies have investigated psilocybin's potential effect on fear learning paradigms. More specifically, the extents to which dose, timing of...
Neuropharmacology
July 1, 2024
Kevin T Krupp, Jazmine D W Yaeger, Leighton J Ledesma et al.
11 citations
Psychedelic compounds have potentially rapid, long-lasting anxiolytic, antidepressive and anti-inflammatory effects. We investigated whether the psychedelic compound (R)-2,5-dimethoxy-4-iodoamphetamine [(R)-DOI], a selective 5-HT2A receptor partial agonist, decreases stress-related behavior in male mice exposed to repeated social aggression. Additionally, we explored the likelihood that these...
British Journal of Pharmacology
June 1, 2024
Isabel Werle, Laura M M Nascimento, Aymee L A Dos Santos et al.
21 citations
Ayahuasca (AYA) is a botanical psychedelic with promising results in observational and small clinical trials for depression, trauma and drug use disorders. Its psychoactive effects primarily stem from N,N-dimethyltryptamine (DMT). However, there is a lack of research on how and where AYA acts in the brain. This study addressed these questions by examining the extinction of aversive memories in...
The British Journal of Psychiatry
May 20, 2024
David Nutt, Ilana B Crome, Allan H. Young
18 citations
Australia has just rescheduled two drugs controlled under the United Nations Psychotropic Drug Conventions, psilocybin and MDMA, as treatments for treatment-resistant depression and post-traumatic stress disorder respectively. This feature explores the reasons for these developments, the opportunities and challenges they provide to psychiatry communities and how along with health systems these...
Journal of Sleep Research
May 1, 2024
Pierre A Geoffroy, Émilie Stern, Julia Maruani et al.
This psychometric pilot study aims to evaluate a new multidimensional simple scale, named the nightmare severity index (NSI) - close to the existing insomnia (ISI) and hypersomnia (HSI) severity indexes. The NSI encompasses all main dimensions of nightmare disorder, evaluating four subdimensions: frequency, emotional impact, diurnal impact, and nocturnal impact of nightmares. The NSI was...
Cureus
March 1, 2024
Reena Sheth, Esha Parikh, Kunmilayo Olayeye et al.
4 citations
Ayahuasca is an original Amazonian brew made from the vines and leaves of Psychotroa viridis and Banisteriopsis caapi. Both P. viridis and B. caapi give this brew its unique psychedelic properties which have been revered over centuries. In recent years, ayahuasca has gained attention as a potential therapeutic tool for mental health disorders, including substance abuse and depression. The...
Frontiers in Neuroscience
February 7, 2024
Jennifer Warner-Schmidt, Martin Stogniew, Blake Mandell et al.
6 citations
BackgroundPost-traumatic stress disorder (PTSD) is a highly prevalent psychiatric disorder that can become chronic and debilitating when left untreated. Available pharmacotherapies are limited, take weeks to show modest benefit and remain ineffective for up to 40% of patients. Methylone is currently in clinical development for the treatment of PTSD. Preclinical studies show rapid, robust and...