Anhedonia, meaning the loss of the normal experience of pleasure in life, can be one of the most troubling symptoms of depression. And also one for which we have relatively few treatments. We know that a small group of dopamine neurons in the ventral tegmentum (limbic system) which project to the prefrontal cortex, among other locations in the brain, are …
TMS Media – The Doctors
TMS Media – “The Doctors” December 3 I am excited to share with you that on December 3rd “The Doctors” featured a segment on TMS. Todd Hutton, MD, Medical Director, Southern California TMS Center, was invited to appear with a patient who is doing great 18 months post TMS treatment. I hope you can watch and that this contributes to further awareness …
Beta Catenin and Depression
Beta catenin is a molecule that may play a key role in preventing depression in those exposed to stress, at least if mice and humans share the same biology. Beta catenin is involved in a number of quite different functions in the cell. To give you an idea, it may be involved in the development of cancer (it is a …
Anhedonia Treatment with Ketamine
The treatment of anhedonia and bipolar depression can be very difficult. An article published in Translational Psychiatry in October of 2014 highlights the role of glutametergic transmission in anhedonia and points to the potentially unique efficacy of ketamine in treating this stubborn problem. Anhedonia, the lack (an-) of pleasure (-hedonia), is one of the 2 main symptoms of a major …
Brain Morphometry Separates Bipolar vs Unipolar
Brain Morphometry refers to a technique for comparing the sizes of different structures in the brain. A new study suggests that using MRI scans of brains it is possible to distinguish between bipolar and unipolar depression with some degree of accuracy (70 – 80% accuracy). The study looked at two separate groups of patients, one from Munster, Germany and one …
Bipolar Depression Neurobiology – 2014 ISBD Update
Bipolar depression neurobiology is an area that urgently needs more research. The treatment of a depression that follows an energized (hypomanic or manic) state remains one of the most difficult areas in psychiatry. Mark Frye, Chair of the Department of Psychiatry at the Mayo Clinic, gave a presentation on this topic at the 2014 International Society of Biological Society conference that was …
Bipolar or Unipolar Depression?
Bipolar or unipolar depression: How to distinguish between these two conditions, which can have very different treatment response remains a difficult question without really satisfying answers. As noted in the picture to the right, misdiagnosis is common and can have serious consequences. An article in European Psychiatry adds to the literature pointing to certain features that increase the odds that someone …