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1.
PLoS One ; 19(1): e0295926, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38198456

RESUMO

INTRODUCTION: There is a resurgence of interest in the therapeutic potential of psychedelic substances such as 3,4-methylenedioxymethamphetamine (MDMA). Primary findings from our randomized, double-blind, placebo-controlled, multi-site Phase 3 clinical trial of participants with severe PTSD (NCT03537014) showed that MDMA-assisted therapy induced significant attenuation in the Clinician-Administered PTSD Scale for DSM-5 compared to Therapy with placebo. Deficits in emotional coping skills and altered self-capacities constitute major obstacles to successful completion of available treatments. The current analysis evaluated the differential effects of MDMA-assisted therapy and Therapy with placebo on 3 transdiagnostic outcome measures and explored the contribution of changes in self-experience to improvement in PTSD scores. METHODS: Participants were randomized to receive manualized therapy with either MDMA or placebo during 3 experimental sessions in combination with 3 preparation and 9 integration therapy visits. Symptoms were measured at baseline and 2 months after the last experimental session using the 20-item Toronto Alexithymia Scale (TAS-20), the 26-item Self Compassion Scale (SCS), and the 63-item Inventory of Altered Self-Capacities (IASC). RESULTS: 90 participants were randomized and dosed (MDMA-assisted therapy, n = 46; Therapy with placebo, n = 44); 84.4% (76/90) had histories of developmental trauma, and 87.8% (79/90) had suffered multiple traumas. MDMA-assisted therapy facilitated statistically significant greater improvement on the TAS-20, the SCS, and most IASC factors of interpersonal conflicts; idealization disillusionment; abandonment concerns; identity impairment; self-awareness; susceptibility to influence; affect dysregulation; affect instability; affect skill deficit; tension reduction activities; the only exception was identity diffusion. CONCLUSION: Compared with Therapy with placebo, MDMA-assisted therapy had significant positive effects on transdiagnostic mental processes of self-experience which are often associated with poor treatment outcome. This provides a possible window into understanding the psychological capacities facilitated by psychedelic agents that may result in significant improvements in PTSD symptomatology.


Assuntos
Alucinógenos , N-Metil-3,4-Metilenodioxianfetamina , Transtornos de Estresse Pós-Traumáticos , Humanos , N-Metil-3,4-Metilenodioxianfetamina/uso terapêutico , Transtornos de Estresse Pós-Traumáticos/tratamento farmacológico , Alucinógenos/uso terapêutico , Ansiedade , Capacidades de Enfrentamento
2.
Nat Med ; 29(10): 2473-2480, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37709999

RESUMO

This multi-site, randomized, double-blind, confirmatory phase 3 study evaluated the efficacy and safety of 3,4-methylenedioxymethamphetamine-assisted therapy (MDMA-AT) versus placebo with identical therapy in participants with moderate to severe post-traumatic stress disorder (PTSD). Changes in Clinician-Administered PTSD Scale for DSM-5 (CAPS-5) total severity score (primary endpoint) and Sheehan Disability Scale (SDS) functional impairment score (key secondary endpoint) were assessed by blinded independent assessors. Participants were randomized to MDMA-AT (n = 53) or placebo with therapy (n = 51). Overall, 26.9% (28/104) of participants had moderate PTSD, and 73.1% (76/104) of participants had severe PTSD. Participants were ethnoracially diverse: 28 of 104 (26.9%) identified as Hispanic/Latino, and 35 of 104 (33.7%) identified as other than White. Least squares (LS) mean change in CAPS-5 score (95% confidence interval (CI)) was -23.7 (-26.94, -20.44) for MDMA-AT versus -14.8 (-18.28, -11.28) for placebo with therapy (P < 0.001, d = 0.7). LS mean change in SDS score (95% CI) was -3.3 (-4.03, -2.60) for MDMA-AT versus -2.1 (-2.89, -1.33) for placebo with therapy (P = 0.03, d = 0.4). Seven participants had a severe treatment emergent adverse event (TEAE) (MDMA-AT, n = 5 (9.4%); placebo with therapy, n = 2 (3.9%)). There were no deaths or serious TEAEs. These data suggest that MDMA-AT reduced PTSD symptoms and functional impairment in a diverse population with moderate to severe PTSD and was generally well tolerated. ClinicalTrials.gov identifier: NCT04077437 .


Assuntos
N-Metil-3,4-Metilenodioxianfetamina , Transtornos de Estresse Pós-Traumáticos , Humanos , Transtornos de Estresse Pós-Traumáticos/tratamento farmacológico , N-Metil-3,4-Metilenodioxianfetamina/efeitos adversos , Resultado do Tratamento , Terapia Combinada , Método Duplo-Cego
3.
Nat Biotechnol ; 41(9): 1179-1181, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37699987
5.
Focus (Am Psychiatr Publ) ; 21(3): 315-328, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37404971

RESUMO

Post-traumatic stress disorder (PTSD) presents a major public health problem for which currently available treatments are modestly effective. We report the findings of a randomized, double-blind, placebo-controlled, multi-site phase 3 clinical trial (NCT03537014) to test the efficacy and safety of 3,4-methylenedioxymethamphetamine (MDMA)-assisted therapy for the treatment of patients with severe PTSD, including those with common comorbidities such as dissociation, depression, a history of alcohol and substance use disorders, and childhood trauma. After psychiatric medication washout, participants (n = 90) were randomized 1:1 to receive manualized therapy with MDMA or with placebo, combined with three preparatory and nine integrative therapy sessions. PTSD symptoms, measured with the Clinician-Administered PTSD Scale for DSM-5 (CAPS-5, the primary endpoint), and functional impairment, measured with the Sheehan Disability Scale (SDS, the secondary endpoint) were assessed at baseline and at 2 months after the last experimental session. Adverse events and suicidality were tracked throughout the study. MDMA was found to induce significant and robust attenuation in CAPS-5 score compared with placebo (P < 0.0001, d = 0.91) and to significantly decrease the SDS total score (P = 0.0116, d = 0.43). The mean change in CAPS-5 scores in participants completing treatment was -24.4 (s.d. 11.6) in the MDMA group and -13.9 (s.d. 11.5) in the placebo group. MDMA did not induce adverse events of abuse potential, suicidality or QT prolongation. These data indicate that, compared with manualized therapy with inactive placebo, MDMA-assisted therapy is highly efficacious in individuals with severe PTSD, and treatment is safe and well-tolerated, even in those with comorbidities. We conclude that MDMA-assisted therapy represents a potential breakthrough treatment that merits expedited clinical evaluation. Appeared originally in Nat Med 2021; 27:1025-1033.

6.
Lab Anim (NY) ; 52(8): 179-182, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37524949
7.
J Stroke Cerebrovasc Dis ; 32(8): 107196, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37230056

RESUMO

OBJECTIVES: The epidemiology of non-traumatic subarachnoid hemorrhage (SAH) is unclear. This study describes the antecedent characteristics of SAH patients, compares the risk of SAH between women and men, and explores if this changes with age. MATERIALS AND METHODS: Retrospective cohort study using an electronic health records network based in the USA (TriNetX). All patients aged 18-90y with at least one healthcare visit were included. Antecedent characteristics of SAH patients (ICD-10 code I60) were measured. The incidence proportion and the relative risk between women and men, were estimated overall, in the 55-90y age group, and in five-year age categories. RESULTS: Of 58.9 million eligible patients, with 190.8 million person-years of observations, 124,234 (0.21%; 63,467 female, 60,671 male) had a first SAH, with a mean age of 56.8 (S.D. 16.8) y (women: 58.2 [16.2] y, men 55.3 [17.2] y). 9,758 SAH cases (7.8%) occurred in people aged 18-30y. Prior to the SAH, an intracranial aneurysm had been diagnosed in 4.1% (women: 5.8% men: 2.5%), hypertension in 25.1% and nicotine dependence in 9.1%. Overall, women had a lower risk of SAH compared to men (RR 0.83, 95% CI 0.83-0.84), with a progressive increase in risk ratio across age groups: from RR 0.36 (0.35-0.37) in people aged 18-24y, to RR 1.07 (1.01-1.13) aged 85-90y. CONCLUSIONS: Men are at greater risk of SAH than women overall, driven by younger adult age groups. Women are at greater risk than men only in the over 75-year age groups. The excess of SAH in young men merits investigation.


Assuntos
Registros Eletrônicos de Saúde , Hemorragia Subaracnóidea , Adulto , Humanos , Feminino , Masculino , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Estudos Retrospectivos , Hemorragia Subaracnóidea/diagnóstico , Hemorragia Subaracnóidea/epidemiologia , Radioisótopos de Ítrio
8.
Front Psychiatry ; 14: 959590, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36815187

RESUMO

Background: Previous research has demonstrated that epigenetic changes in specific hypothalamic-pituitary-adrenal (HPA) genes may predict successful psychotherapy in post-traumatic stress disorder (PTSD). A recent Phase 3 clinical trial reported high efficacy of 3,4-methylenedioxymethamphetamine (MDMA)-assisted therapy for treating patients with severe PTSD compared to a therapy with placebo group (NCT03537014). This raises important questions regarding potential mechanisms of MDMA-assisted therapy. In the present study, we examined epigenetic changes in three key HPA axis genes before and after MDMA and placebo with therapy. As a pilot sub-study to the parent clinical trial, we assessed potential HPA epigenetic predictors for treatment response with genomic DNA derived from saliva (MDMA, n = 16; placebo, n = 7). Methylation levels at all 259 CpG sites annotated to three HPA genes (CRHR1, FKBP5, and NR3C1) were assessed in relation to treatment response as measured by the Clinician-Administered PTSD Scale (CAPS-5; Total Severity Score). Second, group (MDMA vs. placebo) differences in methylation change were assessed for sites that predicted treatment response. Results: Methylation change across groups significantly predicted symptom reduction on 37 of 259 CpG sites tested, with two sites surviving false discovery rate (FDR) correction. Further, the MDMA-treatment group showed more methylation change compared to placebo on one site of the NR3C1 gene. Conclusion: The findings of this study suggest that therapy-related PTSD symptom improvements may be related to DNA methylation changes in HPA genes and such changes may be greater in those receiving MDMA-assisted therapy. These findings can be used to generate hypothesis driven analyses for future studies with larger cohorts.

9.
BJPsych Bull ; 47(5): 287-295, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36073524

RESUMO

AIMS AND METHOD: To investigate whether a psychiatry-specific virtual on-call training programme improved confidence of junior trainees in key areas of psychiatry practice. The programme comprised one 90 min lecture and a 2 h simulated on-call shift where participants were bleeped to complete a series of common on-call tasks, delivered via Microsoft Teams. RESULTS: Thirty-eight trainees attended the lecture, with a significant improvement in confidence in performing seclusion reviews (P = 0.001), prescribing psychiatric medications for acute presentations (P < 0.001), working in section 136 suites (places of safety) (P = 0.001) and feeling prepared for psychiatric on-call shifts (P = 0.002). Respondents reported that a virtual on-call practical session would be useful for their training (median score of 7, interquartile range 5-7.75). Eighteen participants completed the virtual on-call session, with significant improvement in 9 out of the 10 tested domains (P < 0.001). CLINICAL IMPLICATIONS: The programme can be conducted virtually, with low resource requirements. We believe it can improve trainee well-being, patient safety, the delivery of training and induction of rotating junior doctors during the COVID-19 pandemic and it supports the development and delivery of practical training in psychiatry.

10.
Nat Biotechnol ; 40(9): 1306-1307, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-36085508

Assuntos
Mpox , Vacinas , Animais
11.
Nat Biotechnol ; 40(4): 446-448, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35418644
12.
13.
Adv Exp Med Biol ; 1334: 1-22, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34476742

RESUMO

The flipped classroom (where students prepare before and then develop understanding during class) and technology-enhanced learning (audio-visual learning tools) are increasingly used to supplement anatomy teaching. However, the supporting literature lacks robust methodology and is conflicting in demonstrating efficacy outcomes. Contrastingly, near-peer teaching (where senior students teach juniors on the same academic programme) is well researched and reported to be both effective and versatile. This provides an ideal vehicle in which to investigate and potentially optimise these approaches.This study aims to assess educational impact of the peer-led flipped model and student engagement and perceptions regarding traditional and TEL resources.A quasi-randomised, cross-sectional study was conducted with 281 second-year University of Southampton medical students. Students were randomly allocated to 3 groups: traditional lecture (control), flipped text resource, or flipped video resource. The first group received no pre-teaching material, but the flipped groups received a text or video pre-teaching resource. Objective outcomes measured were: Knowledge gain and retention via multiple-choice questionnaires and formative exams Student perceptions and engagement using questionnaires and 2 focus groups All groups demonstrated significant knowledge gain post-teaching (p < 0.0001). However, regardless of engagement with pre-teaching material, no significant difference was found in knowledge gain or retention between the groups. Students engaged 21.1% more with the text rather than video resource (p = 0.0019), but spent equal time using both (p = 0.0948). All resources and teaching approaches were perceived 'very useful' with no significant differences found between groups. A qualitative approach utilising thematic analysis of focus groups identified 4 themes, including 'Attitudes towards flipped classroom', which revealed mixed reviews and perceptions from participants.This study has found the peer-led flipped model is of no detriment to educational impact compared to peer-led traditional approaches in a well-established peer teaching programme in undergraduate medicine at the University of Southampton. Students value traditional and video resources but engage with them differently. Additionally, it was reported that in this experiment, NPT did not seem well suited to the flipped classroom, suggesting a rare limitation of the utility of NPT application within an anatomy curriculum.


Assuntos
Neuroanatomia , Estudantes de Medicina , Estudos Transversais , Currículo , Humanos , Aprendizagem
14.
Lab Anim (NY) ; 50(9): 233-235, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-34373647
15.
Nat Med ; 27(6): 1025-1033, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33972795

RESUMO

Post-traumatic stress disorder (PTSD) presents a major public health problem for which currently available treatments are modestly effective. We report the findings of a randomized, double-blind, placebo-controlled, multi-site phase 3 clinical trial (NCT03537014) to test the efficacy and safety of 3,4-methylenedioxymethamphetamine (MDMA)-assisted therapy for the treatment of patients with severe PTSD, including those with common comorbidities such as dissociation, depression, a history of alcohol and substance use disorders, and childhood trauma. After psychiatric medication washout, participants (n = 90) were randomized 1:1 to receive manualized therapy with MDMA or with placebo, combined with three preparatory and nine integrative therapy sessions. PTSD symptoms, measured with the Clinician-Administered PTSD Scale for DSM-5 (CAPS-5, the primary endpoint), and functional impairment, measured with the Sheehan Disability Scale (SDS, the secondary endpoint) were assessed at baseline and at 2 months after the last experimental session. Adverse events and suicidality were tracked throughout the study. MDMA was found to induce significant and robust attenuation in CAPS-5 score compared with placebo (P < 0.0001, d = 0.91) and to significantly decrease the SDS total score (P = 0.0116, d = 0.43). The mean change in CAPS-5 scores in participants completing treatment was -24.4 (s.d. 11.6) in the MDMA group and -13.9 (s.d. 11.5) in the placebo group. MDMA did not induce adverse events of abuse potential, suicidality or QT prolongation. These data indicate that, compared with manualized therapy with inactive placebo, MDMA-assisted therapy is highly efficacious in individuals with severe PTSD, and treatment is safe and well-tolerated, even in those with comorbidities. We conclude that MDMA-assisted therapy represents a potential breakthrough treatment that merits expedited clinical evaluation.


Assuntos
Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/epidemiologia , N-Metil-3,4-Metilenodioxianfetamina/administração & dosagem , Transtornos de Estresse Pós-Traumáticos/tratamento farmacológico , Adulto , Terapia Combinada , Método Duplo-Cego , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/patologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , N-Metil-3,4-Metilenodioxianfetamina/efeitos adversos , Transtornos de Estresse Pós-Traumáticos/epidemiologia , Transtornos de Estresse Pós-Traumáticos/patologia , Resultado do Tratamento
16.
Anat Sci Educ ; 14(3): 296-305, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33420758

RESUMO

Methods of assessment in anatomy vary across medical schools in the United Kingdom (UK) and beyond; common methods include written, spotter, and oral assessment. However, there is limited research evaluating these methods in regards to student performance and perception. The National Undergraduate Neuroanatomy Competition (NUNC) is held annually for medical students throughout the UK. Prior to 2017, the competition asked open-ended questions (OEQ) in the anatomy spotter examination, and in subsequent years also asked single best answer (SBA) questions. The aim of this study is to assess medical students' performance on, and perception of, SBA and OEQ methods of assessment in a spotter style anatomy examination. Student examination performance was compared between OEQ (2013-2016) and SBA (2017-2020) for overall score and each neuroanatomical subtopic. Additionally, a questionnaire explored students' perceptions of SBAs. A total of 631 students attended the NUNC in the studied period. The average mark was significantly higher in SBAs compared to OEQs (60.6% vs. 43.1%, P < 0.0001)-this was true for all neuroanatomical subtopics except the cerebellum. Students felt that they performed better on SBA than OEQs, and diencephalon was felt to be the most difficult neuroanatomical subtopic (n = 38, 34.8%). Students perceived SBA questions to be easier than OEQs and performed significantly better on them in a neuroanatomical spotter examination. Further work is needed to ascertain whether this result is replicable throughout anatomy education.


Assuntos
Anatomia , Educação de Graduação em Medicina , Estudantes de Medicina , Anatomia/educação , Currículo , Avaliação Educacional , Humanos , Neuroanatomia/educação , Faculdades de Medicina , Inquéritos e Questionários
17.
Sci Rep ; 10(1): 18103, 2020 10 22.
Artigo em Inglês | MEDLINE | ID: mdl-33093612

RESUMO

CIP1-interacting zinc finger protein 1 (CIZ1) is a nuclear matrix associated protein that facilitates a number of nuclear functions including initiation of DNA replication, epigenetic maintenance and associates with the inactive X-chromosome. Here, to gain more insight into the protein networks that underpin this diverse functionality, molecular panning and mass spectrometry are used to identify protein interaction partners of CIZ1, and CIZ1 replication domain (CIZ1-RD). STRING analysis of CIZ1 interaction partners identified 2 functional clusters: ribosomal subunits and nucleolar proteins including the DEAD box helicases, DHX9, DDX5 and DDX17. DHX9 shares common functions with CIZ1, including interaction with XIST long-non-coding RNA, epigenetic maintenance and regulation of DNA replication. Functional characterisation of the CIZ1-DHX9 complex showed that CIZ1-DHX9 interact in vitro and dynamically colocalise within the nucleolus from early to mid S-phase. CIZ1-DHX9 nucleolar colocalisation is dependent upon RNA polymerase I activity and is abolished by depletion of DHX9. In addition, depletion of DHX9 reduced cell cycle progression from G1 to S-phase in mouse fibroblasts. The data suggest that DHX9-CIZ1 are required for efficient cell cycle progression at the G1/S transition and that nucleolar recruitment is integral to their mechanism of action.


Assuntos
Ciclo Celular , Nucléolo Celular/metabolismo , Núcleo Celular/metabolismo , RNA Helicases DEAD-box/metabolismo , Proteínas de Neoplasias/metabolismo , Proteínas Nucleares/metabolismo , Mapas de Interação de Proteínas , RNA Helicases DEAD-box/genética , Células HeLa , Humanos , Proteínas de Neoplasias/genética , Proteínas Nucleares/genética
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