Psychological treatments for depression

Background: Epigenetic modifications appear to be dynamic and they might be affected by environmental factors. The possibility of influencing these processes through psychotherapy has been suggested. Objective: To analyse the impact of psychotherapy on epigenetics when applied to mental disorders. The main hypothesis is that psychological treatments will produce epigenetic modifications related to the improvement of treated symptoms. Methods: A computerised and systematic search was completed throughout the time period from 1990 to 2019 on the PubMed, ScienceDirect and Scopus databases. Results: In total, 11 studies were selected. The studies were evaluated for the theoretical framework, genes involved, type of psychotherapy and clinical challenges and perspectives. All studies showed detectable changes at the epigenetic level, like DNA methylation changes, associated with symptom improvement after psychotherapy. Conclusion: Methylation profiles could be moderating treatment effects of psychotherapy. Beyond the detected epigenetic changes after psychotherapy, the epigenetic status before the implementation could act as an effective predictor of response.

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Psychological treatments for post-traumatic stress disorder, anxiety and depression following major physical civilian trauma: A systematic review and meta-analysis

Trauma ◽

10.1177/14604086211026104 ◽

2021 ◽

pp. 146040862110261

Author(s):

Arham Qureshi ◽

Edward Dickenson ◽

Peter Wall

Keyword(s):

Usual Care ◽

Post Traumatic Stress Disorder ◽

Traumatic Stress ◽

Anxiety And Depression ◽

Wait List ◽

Post Traumatic Stress ◽

Psychological Treatments ◽

Civilian Trauma ◽

Post Traumatic ◽

Better Than

Introduction Approximately 16% of the world’s burden of disease is attributable to traumatic injury. Psychological symptoms, including post-traumatic stress disorder (PTSD), are prevalent in this population and impact recovery from physical injury. Nevertheless, mental health has not been considered to the same degree as physical health. Psychological interventions are used widely as treatments for PTSD. Methods Systematic searches of computerised databases were conducted. Randomised controlled trials of psychological treatments for PTSD following major physical civilian trauma were included. The main outcome measure was clinician-assessed symptoms of PTSD (CAPS), with findings for anxiety and depression also reported. Included studies data were extracted and entered using RevMan 5.3 software. Quality assessments were performed, and data were analysed for summary effects. Results 10 studies were included. With regard to CAPS <6 months, individual CBT did significantly better than usual care/wait list (SMD (95% CI) = −1.24 [−1.82, −0.67]) and non-CBT treatments (SMD (95% CI) = −1.32 [−2.64, −0.04]). Non-CBT treatments were not significantly better than usual care/wait list (SMD (95% CI) −1.40 [−2.91, 0.11]). CBT was superior to usual care/wait list for reducing depressive (SMD (95% CI) −0.67 [−0.98, −0.37]) and anxiety (SMD (95% CI) −0.70 [−1.22, −0.18]) symptoms both in the shorter and longer term. Conclusion Individual CBT was superior to wait list/usual care, and there was limited evidence for non-CBT treatments in reducing clinician and self-rated PTSD, depressive and anxiety symptoms in the shorter term; however, the latter comparison was based on few studies with small sample sizes. Longer-term effects of treatments remain uncertain. There is a need for adequately powered RCTs investigating PTSD treatments following major physical civilian trauma in the longer term. There was considerable heterogeneity in the studies, so care must be taken in interpreting the results of this review.

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Long-term outcomes of psychological treatment for posttraumatic stress disorder: a systematic review and meta-analysis

Psychological Medicine ◽

10.1017/s003329172100163x ◽

2021 ◽

pp. 1-11

Author(s):

Maxi Weber ◽

Sarah Schumacher ◽

Wiebke Hannig ◽

Jürgen Barth ◽

Annett Lotzin ◽

...

Keyword(s):

Systematic Review ◽

Depressive Symptoms ◽

Stress Disorder ◽

Psychological Treatment ◽

Meta Analysis ◽

Effect Sizes ◽

Long Term Outcomes ◽

Psychological Treatments

Abstract Several types of psychological treatment for posttraumatic stress disorder (PTSD) are considered well established and effective, but evidence of their long-term efficacy is limited. This systematic review and meta-analysis aimed to investigate the long-term outcomes across psychological treatments for PTSD. MEDLINE, Cochrane Library, PTSDpubs, PsycINFO, PSYNDEX, and related articles were searched for randomized controlled trials with at least 12 months of follow-up. Twenty-two studies (N = 2638) met inclusion criteria, and 43 comparisons of cognitive behavioral therapy (CBT) were available at follow-up. Active treatments for PTSD yielded large effect sizes from pretest to follow-up and a small controlled effect size compared with non-directive control groups at follow-up. Trauma-focused treatment (TFT) and non-TFT showed large improvements from pretest to follow-up, and effect sizes did not significantly differ from each other. Active treatments for comorbid depressive symptoms revealed small to medium effect sizes at follow-up, and improved PTSD and depressive symptoms remained stable from treatment end to follow-up. Military personnel, low proportion of female patients, and self-rated PTSD measures were associated with decreased effect sizes for PTSD at follow-up. The findings suggest that CBT for PTSD is efficacious in the long term. Future studies are needed to determine the lasting efficacy of other psychological treatments and to confirm benefits beyond 12-month follow-up.

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