Since its initial discovery in the 1800s until recently, myelin was considered a simple insulator for axons, and its formation was believed to be regulated by predetermined biochemical and cellular processes. Moreover, both oligodendrocytes and the myelin they generate were considered to be static components of the nervous system. However, recent studies have revealed that oligodendrocyte development and myelination are highly dynamic processes that continue throughout adult life, are influenced by experience and neuronal activity, and contribute to cognitive function and behavior
Importance We previously reported a 90% decreased risk in major depression, assessed prospectively, in adult offspring of depressed probands who reported that religion or spirituality was highly important to them. Frequency of church attendance was not significantly related to depression risk. Our previous brain imaging findings in adult offspring in these high-risk families also revealed large expanses of cortical thinning across the lateral surface of the right cerebral hemisphere
Abstract: Objective: Female sexual hormones (estrogens and gestagens) may affect neurocognitive functioning and mood. Thus, the use of oral hormonal contraceptives (OHC) bears the risk of psychiatric adverse drug reactions such as depression and psychosis.
Stimulant medications in adolescents with ADHD appear to have a protective effect on the development of substance abuse disorders in this patient population. Medscape Medical News
Considerable progress has been made in understanding how neural circuits contribute to mental processing and psychiatric disorders. This research has highlighted the importance of network dysfunction, particularly changes in the balance between excitatory and inhibitory transmission within and across brain regions that underlie cognition, emotion, and motivation.
Abstract: Objective: Aquagenic pruritus is the development of severe, prickling-like skin discomfort without observable skin lesions that is evoked by contact with water at any temperature.Method: This is a case report of a man presenting with aquagenic pruritus after starting clomipramine treatment for anxiety and depression.Results: The patient’s aquagenic pruritus resolved after discontinuing the clomipramine but reemerged when treatment was restarted.Conclusions: A greater awareness and knowledge about aquagenic pruritus among physicians could help improve the clinical recognition and management of this clinical entity.