236. Hoehn K, Watson TW and MacVicar BA. (1993) Multiple types of calcium channels in acutely isolated rat neostriatal neurons. J Neurosci 13:1244-57.

NeuronCompartmentPropertyConnectivityNotes
Neostriatum spiny direct pathway neuronSomaI L high threshold.Whole-cell voltage-clamp recordings showed that HVA currents were present in at least 95% of neostriatal neurons, but that the majority of them appeared to belong neither to the "L-type" nor the "N-type" classification (Hoehn K et al, 1993 [rat ]236 ). However, recordings in slices showed that D1 receptor activation can either inhibit or enhance evoked activity, depending on the level of membrane depolarization, by modulating an L-type Ca2+ conductance (Hernandez-Lopez S et al, 1997241 ).
Neostriatum spiny direct pathway neuronSomaI N.Whole-cell voltage-clamp recordings showed that HVA currents were present in at least 95% of neostriatal neurons, but that the majority of them appeared to belong neither to the "L-type" nor the "N-type" classification (Hoehn K et al, 1993 [rat ]236 ).
Neostriatum spiny direct pathway neuronSomaI T low threshold.Whole-cell voltage-clamp recordings showed that a low-threshold transient (T-type) Ca2+ current was observed in 40% of neurons (Hoehn K et al, 1993 [rat ]236 ). Another study suggested that adult neostriatal projection neurons do not express significant levels of LVA Ca2+ current (Bargas J et al, 1994 [rat ]248 )

References
236. Hoehn K, Watson TW and MacVicar BA. (1993) Multiple types of calcium channels in acutely isolated rat neostriatal neurons. J Neurosci 13:1244-57.
241. Hernandez-Lopez S, Bargas J, Surmeier DJ, Reyes A and Galarraga E. (1997) D1 receptor activation enhances evoked discharge in neostriatal medium spiny neurons by modulating an L-type Ca2+ conductance. J Neurosci 17:3334-42.
248. Bargas J, Howe A, Eberwine J, Cao Y and Surmeier DJ. (1994) Cellular and molecular characterization of Ca2+ currents in acutely isolated, adult rat neostriatal neurons. J Neurosci 14:6667-86.
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