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Neuroreport. 1994 Dec 30;6(1):21-5.

BDNF and NT-4/5 enhance glutamatergic synaptic transmission in cultured hippocampal neurones.

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Department of Molecular Neurobiochemistry, Ruhr-Universit├Ąt Bochum, Germany.


The effects of BDNF and NT-4/5 on AMPA receptor-mediated synaptic transmission were investigated with the patch clamp technique applied to embryonic and post-natal rat hippocampal neurones, cultured in serum-free medium. Spatially restricted application of neurotrophin-containing solution on to the recorded cells was performed and evoked as well as miniature excitatory postsynaptic currents (mepscs) were monitored. In approximately 25% of neurones tested a transient augmentation of evoked synaptic currents and a transient increase in the frequency of mepscs occurred with a delay of 0.5-5 min after the onset of BDNF or NT-4/5 application. The amplitudes of the AMPA receptor mediated mepscs were unaffected, suggesting a presynaptic action of BDNF and NT-4/5.

[Indexed for MEDLINE]

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