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New Research on Obsessive Compulsive Disorder

By June 1, 2022No Comments

A Comparative Study of Aripiprazole, Olanzapine, and L-Methylfolate Augmentation in Treatment Resistant Obsessive-Compulsive Disorder.

Dar SA, Wani RA, Haq I. Psychiatr Q. 2021 Apr 8. doi: 10.1007/s11126–021–09892–0. Epub ahead of print. PMID: 33830427.

  • “About half of the patients with Obsessive-compulsive disorder (OCD) do not respond to serotonin reuptake inhibitors (SRIs) or have a partial improvement in their symptoms. This study aimed to compare the efficiency and safety of aripiprazole, olanzapine, and L-methyl folate in patients with resistant OCD.”
  • “Patients showed a significant improvement over 6-week study period in olanzapine and aripiprazole group as measured by YBOCS total score (p < 0.001) while there was no change in the L-methyl folate group at the end as compared with baseline (p = 0.150).”
  • “Clinical Global Impression-Severity decreased from 4.90 to 2.90 in olanzapine and aripiprazole group at the end of 6 weeks while there was no change in the L-methyl folate group. The CGI-I was significant in the olanzapine and aripiprazole group (p < 0.001) while it was insignificant in the L-methyl folate group (p = 0.088).”

Moderators of Response to Personalized and Standard Care Cognitive-Behavioral Therapy for Youth with Autism Spectrum Disorder and Comorbid Anxiety.

Storch EA, Wood JJ, Guzick AG, Small BJ, Kerns CM, Ordaz DL, Schneider SC, Kendall PC. J Autism Dev Disord. 2021 Apr 7. doi: 10.1007/s10803–021–05000–0. Epub ahead of print. PMID: 33826038.

  • “Anxiety/obsessive-compulsive disorders are common among youth with autism spectrum disorder (ASD). Two versions of cognitive behavior therapy (CBT) are effective, with some advantage for a personalized, adapted version. This study evaluated predictors and moderators of standard CBT and adapted CBT.”
  • “More severe internalizing and emotional-behavioral problems predicted poorer treatment outcomes especially in standard versus personalized CBT. Elevated repetitive behaviors and restricted interests predicted poorer treatment outcomes across treatments, though youth with “moderate” repetitive behaviors and restricted interested experienced poorer outcomes only in standard but not personalized CBT. Externalizing symptoms directly predicted treatment outcomes. Older age predicted improved outcomes in adapted but not standard CBT.”
  • “Findings highlight the need for further treatment refinements and the value in adapting treatment for youth with more complex presentations.”

Reduced T cell immunity in unmedicated, comorbidity-free obsessive-compulsive disorder: An immunophenotyping study.

Subbanna M, Shivakumar V, Jose D, Venkataswamy M, Debnath M, Ravi V, Reddy YCJ, Venkatasubramanian G, Narayanaswamy JC. J Psychiatr Res. 2021 Mar 25;137:521–524. doi: 10.1016/j.jpsychires.2021.03.035. Epub ahead of print. PMID: 33813311.

  • “ Immune system aberrations have been postulated to play a role in the pathophysiology of Obsessive-compulsive disorder (OCD). This study was aimed to examine the profile of immune cell subsets in peripheral blood of un-medicated OCD patients”.
  • “Significantly reduced percentage of T regulatory (Treg) cells was observed in individuals with OCD compared to healthy control subjects [1.0 ± 0.7 vs. 1.9 ± 1.4; p = 0.03, r = 0.33]”
  • “In this study, decreased population of Treg cells essentially indicates a dysregulated T cell and/or T cell mediated immune activation in drug-naïve OCD patients. This preliminary observation might form the basis of further studies examining the immuno-inflammatory/autoimmune origin of OCD.”

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