How Studies of the Serotonin System in Macaque Models of Menopause Relate to Alzheimer's Disease1.

Cynthia L Bethea, Arubala Reddy, Fernanda Lima Christian

Research output: Contribution to journalArticlepeer-review

Abstract

Serotonin plays a key role in mood or affect, and dysfunction of the serotonin system has been linked to depression in humans and animal models. Depression appears prior to or coincident with overt symptoms of Alzheimer's disease (AD) in about 50% of patients, and some experts consider it a risk factor for the development of AD. In addition, AD is more prevalent in women, who also show increased incidence of depression. Indeed, it has been proposed that mechanisms underlying depression overlap the mechanisms thought to hasten AD. Women undergo ovarian failure and cessation of ovarian steroid production in middle age and the postmenopausal period correlates with an increase in the onset of depression and AD. This laboratory has examined the many actions of ovarian steroids in the serotonin system of non-human primates using a rhesus macaque model of surgical menopause with short or long-term estradiol (E) or estradiol plus progesterone (E+P) replacement therapy. In this mini-review, we
Original languageEnglish
Pages (from-to)1001-1015
JournalJ. Alzheimers Dis.
StatePublished - Sep 2016

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