publication . Thesis

On the transmission properties of synapses made between granule cells and cerebellar Purkinje cells

Sims, Robert;
Open Access English
  • Country: United Kingdom
In the cerebellar cortex, forms of both long-term depression (LTD) and long-term potentiation (LTP) can be observed at parallel fibre (PF) - Purkinje cell (PC) synapses. A presynaptic variant of cerebellar LTP can be evoked in PCs by raised frequency stimulation (RFS) of parallel fibre at 4-16Hz for 15s. This form of LTP is dependent on protein kinase A (PKA) and nitric oxide (NO), and can spread to distant synapses. Application of an extracellular NO scavenger, cPTIO, was found to prevent the spread of LTP to distant PF synapses in rat cerebellar slices. G-substrate may be an important mediator of the NO-dependent pathway for LTD. 8-16Hz RFS of PFs without a hi...
Medical Subject Headings: nervous system
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