Effects of the experimental administration of oral estrogen on prefrontal functions in healthy young women
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Effects of the experimental administration of oral estrogen on prefrontal functions in healthy young women. / Sommer, Tobias; Richter, Katharina; Singer, Franziska; Derntl, Birgit; Rune, Gabriele M; Diekhof, Esther; Bayer, Janine.
in: PSYCHOPHARMACOLOGY, Jahrgang 235, Nr. 12, 12.2018, S. 3465-3477.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Effects of the experimental administration of oral estrogen on prefrontal functions in healthy young women
AU - Sommer, Tobias
AU - Richter, Katharina
AU - Singer, Franziska
AU - Derntl, Birgit
AU - Rune, Gabriele M
AU - Diekhof, Esther
AU - Bayer, Janine
PY - 2018/12
Y1 - 2018/12
N2 - 17-Beta-estradiol (E2) stimulates neural plasticity and dopaminergic transmission in the prefrontal cortex, which is critically involved in attentional control, working memory, and other executive functions. Studies investigating E2's actions on prefrontally mediated behavior in the course of the menstrual cycle or during hormone replacement therapy are inconclusive, with numerous null findings as well as beneficial and detrimental effects. The current study focused on the effect of E2 on attentional performance, as animal studies indicate that supraphysiological doses (i.e., above estrous cycle levels) of E2 have beneficial effects on measures of attention in female rodents. To translate these findings to humans, we administered 12 mg E2-valerate or placebo orally to 34 naturally cycling women in the low-hormone early follicular phase using a randomized, double-blinded, pre-post design. Behavioral performance was tested twice during baseline and E2 peak, where E2 levels reached mildly supraphysiological levels in the E2 group. Aside from mainly prefrontally mediated tasks of attention, working memory, and other executive functions, we employed tasks of affectively modulated attention, emotion recognition, and verbal memory. E2 administration had a significant, but subtle negative impact on general processing speed and working memory performance. These effects could be related to an overstimulation of dopaminergic transmission. The negative effect of supraphysiological E2 on working memory connects well to animal literature. There were no effects on attentional performance or any other measure. This could be explained by different E2 levels being optimal for changing behavioral performance in specific tasks, which likely depends on the brain regions involved.
AB - 17-Beta-estradiol (E2) stimulates neural plasticity and dopaminergic transmission in the prefrontal cortex, which is critically involved in attentional control, working memory, and other executive functions. Studies investigating E2's actions on prefrontally mediated behavior in the course of the menstrual cycle or during hormone replacement therapy are inconclusive, with numerous null findings as well as beneficial and detrimental effects. The current study focused on the effect of E2 on attentional performance, as animal studies indicate that supraphysiological doses (i.e., above estrous cycle levels) of E2 have beneficial effects on measures of attention in female rodents. To translate these findings to humans, we administered 12 mg E2-valerate or placebo orally to 34 naturally cycling women in the low-hormone early follicular phase using a randomized, double-blinded, pre-post design. Behavioral performance was tested twice during baseline and E2 peak, where E2 levels reached mildly supraphysiological levels in the E2 group. Aside from mainly prefrontally mediated tasks of attention, working memory, and other executive functions, we employed tasks of affectively modulated attention, emotion recognition, and verbal memory. E2 administration had a significant, but subtle negative impact on general processing speed and working memory performance. These effects could be related to an overstimulation of dopaminergic transmission. The negative effect of supraphysiological E2 on working memory connects well to animal literature. There were no effects on attentional performance or any other measure. This could be explained by different E2 levels being optimal for changing behavioral performance in specific tasks, which likely depends on the brain regions involved.
KW - Administration, Oral
KW - Adult
KW - Animals
KW - Double-Blind Method
KW - Emotions
KW - Estradiol
KW - Estrogens
KW - Estrous Cycle
KW - Executive Function
KW - Female
KW - Humans
KW - Memory, Short-Term
KW - Menstrual Cycle
KW - Prefrontal Cortex
KW - Psychomotor Performance
KW - Young Adult
KW - Journal Article
KW - Randomized Controlled Trial
U2 - 10.1007/s00213-018-5061-y
DO - 10.1007/s00213-018-5061-y
M3 - SCORING: Journal article
C2 - 30306229
VL - 235
SP - 3465
EP - 3477
JO - PSYCHOPHARMACOLOGY
JF - PSYCHOPHARMACOLOGY
SN - 0033-3158
IS - 12
ER -