Importantly, Hv1−/− cells were devoid of voltage-gated proton current [12] [14], and their ROS production could be normalized by incorporating a proton permeable, monovalent cation channel (gramicidin) into their membrane [14].
► The shorter isoform, TMEM16A 0), is devoid of voltage-dependence.
For example, CaCCs devoid of voltage-dependence have been observed in olfactory sensory neurons [8,9] and in renal epithelial cells [24].
We found that upon external exposure of the oocyte to Cd2+ (100 µM) or Cu-Phen (100 µM), the time- and voltage-dependent outwardly-rectifying shape of the R228C current is switched to a nearly linear leak character with currents devoid of time and voltage dependence (Figure 9B).
Interestingly, these currents were completely devoid of any relaxation following application of voltage pulses and the shape of the corresponding current voltage relationship was largely linear (Figs. 2A, C).
In conclusion, neuronal voltage-gated Na+channels do not appear directly involved in the antiepileptic mechanism of action of LEV, and LEV was devoid of effect on the low-voltage-gated (T-type) Ca2+current in hippocampal neurones.
Electricity kills, regardless of voltage.
The voltage maps on the right after PVAC ablation were obtained in the same way with special attention for the PVs (198 points) and clearly show that the LA body voltage remained unchanged, whereas the PVs are completely devoid of electrical activity with a sharp demarcation.
Crotamine is the second major toxin in the Cdt venom; it is a basic, low molecular weight myotoxin devoid of PLA2 activity [ 26], with a specific action on voltage-sensitive sodium channels of muscles [ 27] and brain cells [ 28].
Furthermore, AaBTX-L1 was totally devoid of toxicity when injected into mice intracerebroventricularly and did not compete with radiolabeled voltage-gated K+ and Na+ channel toxins in binding experiments on rat brain synaptosomes.
