Another side to cancer immunotherapy? Emory scientists investigate intratumoral B cells

B cells represent the other major arm of the adaptive immune system, besides T cells, and could offer opportunities for new treatments against some kinds of Read more

Don’t go slippery on me, tRNA

RNA can both carry genetic information and catalyze chemical reactions, but it’s too wobbly to accurately read the genetic code by itself. Enzymatic modifications of transfer RNAs – the adaptors that implement the genetic code by connecting messenger RNA to protein – are important to stiffen and constrain their interactions. Biochemist Christine Dunham’s lab has a recent paper in eLife showing a modification on a proline tRNA prevents the tRNA and mRNA from slipping out Read more

Two birds with one stone: amygdala ablation for PTSD and epilepsy

It’s quite a leap to design neurosurgical ablation of the amygdala to address someone’s PTSD, and it was only considered because of the combination with Read more

Sanne van Rooij

Two birds with one stone: amygdala ablation for PTSD and epilepsy

The amygdala is a region of the brain known for its connections to emotional responses and fear memories, and hyperreactivity of the amygdala is associated with symptoms of PTSD (post-traumatic stress disorder). That said, it’s quite a leap to design neurosurgical ablation of the amygdala to address someone’s PTSD. This type of irreversible intervention could only be considered because of the presence of another brain disorder: epilepsy.

In a case series published in Neurosurgery, Emory investigators describe how for their first patient with both refractory epilepsy and PTSD, observations of PTSD symptom reduction were fortuitous. However, in a second patient, before-and-after studies could be planned. In both, neurosurgical ablation of the amygdala significantly reduced PTSD symptoms as well as reducing seizure frequency.

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Posted on by Quinn Eastman in Neuro Leave a comment