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  • Long-term hormone treatment increases synapses in rat prefrontal cortex

    University of Illinois psychology professor and Beckman Institute affiliate Janice Juraska, left, and doctoral student Nioka Chisholm found that long-term exposure to estrogen and a synthetic progesterone increased synapse numbers in the prefrontal cortex of aged rats.

    University of Illinois psychology professor and Beckman Institute affiliate Janice Juraska, left, and doctoral student Nioka Chisholm found that long-term exposure to estrogen and a synthetic progesterone increased synapse numbers in the prefrontal cortex of aged rats.

    Photo by L. Brian Stauffer

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  • Editor's note: To reach Janice Juraska, call 217-333-8546; email jjuraska@illinois.edu.