GABAB receptors modulate short-term potentiation of spontaneous excitatory postsynaptic currents in the rat supraoptic nucleus in vitro

2001 ◽  
Vol 41 (5) ◽  
pp. 554-564 ◽  
Author(s):  
Samuel B Kombian ◽  
Michiru Hirasawa ◽  
Wandikayi C Matowe ◽  
Quentin J Pittman
Keyword(s):  
Supraoptic Nucleus ◽  
Gabab Receptors ◽  
Short Term ◽  
Excitatory Postsynaptic Currents ◽  
Postsynaptic Currents ◽  
Term Potentiation ◽  
Spontaneous Excitatory Postsynaptic Currents

Effects of Hyposmolar Solutions on Membrane Currents of Hippocampal Interneurons and Mossy Cells In Vitro

1998 ◽  
Vol 79 (2) ◽  
pp. 1108-1112 ◽  
Author(s):  
Scott C. Baraban ◽  
Philip A. Schwartzkroin
Keyword(s):  
Voltage Clamp ◽  
Hippocampal Slices ◽  
Cell Voltage ◽  
Potassium Currents ◽  
Membrane Currents ◽  
Excitatory Postsynaptic Currents ◽  
Whole Cell ◽  
Mossy Cells ◽  
Postsynaptic Currents

Baraban, Scott C. and Philip A. Schwartzkroin. Effects of hyposmolar solutions on membrane currents of hippocampal interneurons and mossy cells in vitro. J. Neurophysiol. 79: 1108–1112, 1998. Whole cell voltage-clamp recordings in rat hippocampal slices were used to investigate the effect of changes in extracellular osmolarity on voltage-activated potassium currents. Currents were evoked from oriens/alveus (O/A) interneurons, hilar interneurons, and mossy cells. Hyposmolar external solutions produced a significant potentiation of K+ current recorded from O/A and hilar interneurons, but not from mossy cells. Hyposmolar solutions also dramatically potentiated the spontaneous excitatory postsynaptic currents recorded from mossy cells. These results suggest that hippocampal excitability can be modulated by the complex actions exerted by changes in extracellular osmolarity.

scholarly journals Short-term potentiation of mEPSCs requires N-, P/Q- and L-type Ca2+channels and mitochondria in the supraoptic nucleus

2008 ◽  
Vol 586 (13) ◽  
pp. 3147-3161 ◽  
Author(s):  
Michelle E. Quinlan ◽  
Christian O. Alberto ◽  
Michiru Hirasawa
Keyword(s):  
Supraoptic Nucleus ◽  
Short Term ◽  
Term Potentiation ◽  
Ca2 Channels
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