Publications by authors named "Livia Maria Bolsoni"

Objectives: We assessed whether administering cannabidiol (CBD) before recalling the traumatic event that triggered their disorder attenuates anxiety in patients with post-traumatic stress disorder (PTSD). As an exploratory pilot analysis, we also investigated whether this effect depends on the nature of the event (sexual vs. nonsexual trauma).

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Studies with cannabidiol (CBD) suggest that this compound has anxiolytic properties and may mediate the reconsolidation and extinction of aversive memories. The objective of this study was to test whether the administration of CBD 300 mg before the recall of traumatic events attenuated symptoms usually induced by recall in subjects diagnosed with posttraumatic stress disorder (PTSD) and if its potential effects interfere with the reconsolidation of aversive memories. The double-blind trial included 33 participants of both sexes, aged between 18 and 60 years, diagnosed with PTSD according to the SCID-5 and randomly allocated to two groups treated with CBD (n = 17) and placebo (n = 16).

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Reconsolidation is the return of a memory to a transient state of lability, following memory consolidation, that can occur when memories are evoked. During the process of reconsolidation, memories may be modified by different means, including the administration of drugs, during a period called the "reconsolidation window". This process has been widely studied in animals, but human studies are limited and include several methodological pitfalls.

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Introduction: Previous studies have shown attenuated cortisol awakening response in patients with posttraumatic stress disorder (PTSD).

Case Presentation: A 15-year-old girl, a survivor of acute sexual violence, received a 7-day oral treatment with cannabidiol. She was followed-up from the first 24 hours after the event for 6 months, for assessment of the effects of this treatment on the reconsolidation of memories related to the traumatic event.

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Article Synopsis
  • - The Brazilian version of the Posttraumatic Stress Disorder Checklist (PCL-5) was evaluated for its internal consistency, test-retest reliability, and diagnostic utility following the updates from the DSM-5.
  • - A study involving 85 individuals exposed to trauma revealed that both complete (21-item) and abbreviated versions (8-item and 4-item) of the PCL-5 exhibited good reliability scores, indicating they are consistent and stable over time.
  • - Diagnostic utility analysis suggested effective cutoff points for PTSD diagnosis, with the complete PCL-5 at 36 being the most efficient, showing that the Brazilian PCL-5 is reliable for identifying PTSD.
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Unlabelled: AimTo compare the impact of three different approaches to primary care mental health on the prevalence of mental disorders.

Background: Millions of people suffer from mental disorders. As entry point into the health service, primary healthcare plays an important role in providing mental health prevention and treatment.

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