American Association for the Advancement of Science, Science, 6571(374), p. 1106-1113, 2021
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Disease and hippocampal dysfunction Impaired function of the brain’s hippocampus can underpin psychiatric symptoms and cognitive impairment. Looking at postmortem brain samples from patients affected by any of several neurodegenerative disorders, Terreros-Roncal et al . investigated whether adult neurogenesis was disrupted (see the Perspective by Gage). Indeed, functions of the neurogenic niche shifted and the cells produced were abnormal in shape and differentiation. The neuronal plasticity characteristic of the hippocampus may make it especially susceptible to the ravages of neurodegenerative disease. —PJH