A Brain on a Roller Coaster: Can the Dopamine Reward System Act as a Protagonist to Subdue the Ups and Downs of Bipolar Disorder?

One of the most interesting but tenebrous parts of the bipolar disorder (BD) story is the switch between (hypo)mania and depression, which can give bipolar patients a thrilling, but somewhat perilous, 'ride'. Numerous studies have pointed out that there are some recognizable differences (either state-dependent or state-independent) in several brain regions of people with BD, including components of the brain's reward system. Understanding the underpinning mechanisms of high and low mood statuses in BD has potential, not only for the development of highly specific and selective pharmaceutical agents, but also for better treatment approaches and psychological interventions to manage BD and, thus, give patients a safer ride.

Physiopathology of dementia from the perspective of traditional Persian medicine.

The most common cognitive disorder that is disabling is dementia. During the medieval period, traditional Persian medicine was an outstanding source of medicine that was used as standard references in medical schools of in the West and Middle East. In ancient manuscripts of traditional Persian medicine, a condition has been introduced similar to dementi (raoonat and homgh).