Effects of Androgen Deprivation on Cerebral Morphometry in Prostate Cancer Patients – An Exploratory Study
Chao HH; Hu S; Ide JS; Uchio E; Zhang S; Rose M; Concato J; Li CS R
PLoS ONE2013
Summary (paraphrased)
This exploratory neuroimaging study compared brain morphometry in prostate cancer patients receiving androgen deprivation therapy against matched controls. ADT was associated with reduced gray-matter volumes in frontal and prefrontal cortical structures, and shrinkage of the primary motor cortex tracked with slower response times on an N-back target-detection task. The authors conclude that androgen deprivation can measurably remodel cerebral structures involved in cognitive control and motor processing, even when standard behavioral tests show only variable effects.
Why it’s in the systems review
This is the structural-brain counterpart to the ADT cognitive review: it shows androgen silencing producing gray-matter loss in prefrontal regions — a physical substrate for the brain-fog/cognitive-slowing phenotype. It directly supports the task's framing that central symptoms demand a central explanation, and it gives the corpus an imaging-level precedent for androgen signaling as a maintenance factor for adult cortical structure. Exploratory and small, but the morphometry-behavior correlation (motor cortex volume vs. response time) is the kind of objective finding the post-drug-syndrome field lacks.