Key result
Mechanical trauma applied to neuronal cultures caused a transient increase in plasma membrane permeability and heterogeneous electrophysiological responses, commonly increasing burst intervals.
Why the study?
Does mechanical trauma alter electrophysiological activity and plasma membrane permeability in cultured neuronal networks?
Population
Neuronal cells cultured on a microelectrode array (in vitro model of traumatic brain injury)
Comparison
Mechanical trauma vs Baseline (before injury)
Design
Preclinical
Follow-up
at least 10 min following the insult
Authors
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May initiate deleterious cascades after brain trauma; leaves open whether targeting membrane permeability improves traumatic brain injury outcomes.
Does mechanical trauma alter electrophysiological activity and plasma membrane permeability in cultured neuronal networks?
Mechanical trauma in an in vitro neuronal network model induces immediate, transient increases in membrane permeability and alters spontaneous electrophysiological activity.
Prado et al. (2005) studied Traumatic brain injury. Mechanical trauma vs. Pre-injury baseline was evaluated on Neuronal plasma membrane permeability and electrophysiological activity (firing frequency, average burst interval, spikes within burst). Mechanical trauma applied to neuronal cultures caused a transient increase in plasma membrane permeability and heterogeneous electrophysiological responses, commonly increasing burst intervals.
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