Research Keyword: excitatory neurons

GDF11 slows excitatory neuronal senescence and brain ageing by repressing p21

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As we age, brain cells called excitatory neurons undergo senescence, similar to cellular ageing. This study found that a protein called GDF11 protects these neurons from ageing. When GDF11 was removed from excitatory neurons in mice, the neurons aged faster, leading to memory problems and shorter lifespans. The research reveals that GDF11 works by blocking p21, a molecule that promotes cellular ageing.

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Conditional deletion of ROCK2 induces anxiety-like behaviors and alters dendritic spine density and morphology on CA1 pyramidal neurons

mycolabadmin

Researchers created mice with reduced ROCK2 protein in brain cells to understand how this protein affects behavior and brain structure. These mice showed anxiety-like behavior, avoiding open spaces and preferring darkness. The study found that ROCK2 affects the structure of dendritic spines, which are tiny branches on nerve cells that allow communication between neurons, particularly in the hippocampus region involved in learning and memory.

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