1 1 7ear Colleagues,Steroid hormones exert significant effects on the central nervous system. Thisconcept has been clearly proved by functional brain-imaging studies, which demon-strate the impact of hormones on brain function. Hormone levels can be assessed invarious ways, such as static measurements, dynamic challenges, or chronobiologicalprofiles. In psychiatry, hormones are intimately related to both symptoms and therapeutics. For instance, there exist well-established relationships between sexhormone levels and mood and behavior disorders. Hormones are put to effective usein the treatment of some psychiatric conditions. Thus, it has been shown that the correction of hormonal deficits can improve mood or cognition.The effect of hormones on psychiatric symptoms raises fascinating questionsabout the interrelationships between endocrinology and psychiatry. More researchis certainly warranted to clarify the nature of the association between hormonaldeficits and some mental disorders, such as mood abnormalities, brain aging, andmild cognitive impairment.These various aspects are developed with great clarity in this issue. We are verygrateful to David Rubinow for bringing together the contributions of such expertsin the field of neuroendocrinology and psychiatry.Yours sincerely,Jean-Paul Macher, MDMarc-Antoine Crocq, MDE d i t o r i a lD
Vol 4 n° 2 - Cerebral aspects
of reproductive endocrinology