Yanochko, G. M. & Yool, A. J. Block by extracellular divalent cations of Drosophila Big Brain channels expressed in Xenopus oocytes.
Playing with that new touch screen and downloading that goofy video from YouTube on your iGadget to display on your megascreen TV activates innumerable brain channels linking your auditory, visual, and tactile networks with your limbic system and your prefrontal cortex.
The resulting channel chimera, NvNav2.1NvNav2.5(p−loops), was Ca2+ impermeable, with an Erev value of 46.5 ± 1.2 mV (n = 19; Figure 3G) and PK/PNa ratio of 0.07 resembling those of Nav1 channels (insect channel DmNav1 Erev = 47.8 ± 1.1 mV, n = 17; mammalian brain channel rNav1.2 Erev = 48.9 ± 2.3 mV, n = 14; data not shown).
The selectivity for Na+ was achieved in the two channel types in different ways, as is evident from the lack of selectivity for Na+ ions in channel mutants NvNav2.1NvNav2.5(p−loops DEKA) bearing the SF of Nav1, and Nav1.2DKEA (a mammalian brain channel mutant) bearing the SF of NvNav2.5.
In the BDD group, however, subjects failed to look at the figure as a whole, instead using left-brain channels that dwell on details for all three faces.
Sokolov, S., Scheuer, T. & Catterall, W. A. Ion permeation through a voltage- sensitive gating pore in brain sodium channels having voltage sensor mutations.
"While everyone is recovering from the shock and grieving over the deceased, the prime minister has already gotten up from the mourning period, moved on from Page 1 to Page 2, activated the switch in his brain, changed channels, and zapped to the Palestinians," Chemi Shalev wrote in his column in the newspaper Maariv.
Alcmaeon thought that the sensory organs were connected to the brain by channels (poroi) and may have discovered the poroi connecting the eyes to the brain (i.e. the optic nerve) by excising the eyeball of an animal, although it is doubtful that he used dissection as a standard method.
In fact, the β4 subunit has been considered the primary auxiliary subunit involved in assembly of many brain BK channels [11], [31], [32] and KO of the β4 subunit is associated with alterations in neuronal excitability [26].
Chen et al. [ 24] proved that PKC phosphorylates brain Na+ channels and reduces peak Na+ current in hippocampal neurons.
In the normal adult brain, KCa3.1 channels are primarily expressed in microglia and are mostly undetectable in other cell populations.
