Monday, May 17, 2021

Two promising post-traumatic stress disorder treatments via Deric Bownds Mindblog

Ecstasy  has been out there for years for PTSD, hopefully your doctor knows about it. 

But wouldn't your doctor already have been doing that?

Treating PTSD With Ecstasy? You Might Have Some Questions. May 2018

Ecstasy Was Just Labelled a 'Breakthrough Therapy' For PTSD by The FDA August 2017

You do have a 23% chance of stroke survivors getting PTSD.

The latest here:

Two promising post-traumatic stress disorder treatments via Deric Bownds Mindblog  

I want to pass on references to two new approaches to relieving the symptoms of post-traumatic stress disorder (PTSD). Nuwer describes a new study showing that MDMA (known as the party drug Ecstasy, or Molly) can bring relief to PTSD when used in conjunction with talk therapy. Ressler et al. address the problem that human patients cannot be directly re-exposed to trauma-cues of the sort that have been used in animal studies to induce and then disrupt reconsolidation of traumatic memories. They devise a procedure for covertly capturing and attenuating a hippocampu-dependent fear memory in male rats, a procedure that might prove to be useful in human therapy. Here is their abstract:
Reconsolidation may be a viable therapeutic target to inhibit pathological fear memories. In the clinic, incidental or imaginal reminders are used for safe retrieval of traumatic memories of experiences that occurred elsewhere. However, it is unknown whether indirectly retrieved traumatic memories are sensitive to disruption. Here we used a backward (BW) conditioning procedure to indirectly retrieve and manipulate a hippocampus (HPC)-dependent contextual fear engram in male rats. We show that conditioned freezing to a BW conditioned stimulus (CS) is mediated by fear to the conditioning context, activates HPC ensembles that can be covertly captured and chemogenetically activated to drive fear, and is impaired by post-retrieval protein synthesis inhibition. These results reveal that indirectly retrieved contextual fear memories reactivate HPC ensembles and undergo protein synthesis-dependent reconsolidation. Clinical interventions that rely on indirect retrieval of traumatic memories, such as imaginal exposure, may open a window for editing or erasure of neural representations that drive pathological fear.
 

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