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Data
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Spinal cord lumbar motor neuron alpha ACh cell Show
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Ia afferents release GLU
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Glu from Ia axon terminals (reviewed in Show
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Single-fiber Ia EPSPs have widely varying shapes Show
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indicating that Ia synapses are distributed widely over soma-dendrites (confirmed by HRP labelling of Ia afferents on labelled motoneurones: reviewed in Show
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SOBiv p88). Glutamate is released from Ia terminals Show
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Ia synapses are immunoreactive for GLU Show
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Ia EPSPs are mediated largely by AMPA receptors (muscle afferents: Show
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single fiber EPSPs: Show
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by contrast, Show
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found an NMDA component in neonatal rat. Short-term post-tetanic potentiation (PTP) and depression (PTD) occur Show
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but not LTP or LTD (SOBiv p90).Postnatal development and properties of these receptors were studied with whole-cell and outside-out patch-clamp. The conductance and relative distribution were independent of age from postnatal day 4 to 14. The results also suggested that their properties differ from those in spinal cord interneurons Show
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