- Dec 24, 2013
- 933
- Tinnitus Since
- (1956) > 1980 > 2006 > 2012 > (2015)
- Cause of Tinnitus
- Ac. Trauma & Ac.Trauma + Meds.
Sorry if this was answered already, but do we know for certain if keppra is a kv3 activator?
Ummmmmm...Maybe yes, maybe no! I mean, just for fun, get a load of this:
Levetiracetam at concentrations of up to 10 µM did not demonstrate binding affinity for a variety of known receptors, such as those associated with benzodiazepines, GABA (gamma-aminobutyric acid), glycine, NMDA (N-methyl-D-aspartate), re-uptake sites, and second messenger systems. Furthermore, in vitro studies have failed to find an effect of levetiracetam on neuronal voltage-gated sodium or T-type calcium currents and levetiracetam does not appear to directly facilitate GABAergic neurotransmission. However, in vitro studies have demonstrated that levetiracetam opposes the activity of negative modulators of GABA- and glycine-gated currents and partially inhibits N-type calcium currents in neuronal cells.
So no GABA stuff, no NMDA, (our T favorites), no Na+ or Ca+ action (synaptic???), etc....yet it does oppose negative modulators for GABA and N-type Ca currents, etc. which I could phrase maybe as = "Hey you lot, I'm not going to affect you unless you try and affect me, so bugger off OK!"
Sheeeesh! So what's left??? Maybe all that's left is that it's a Kv modulator...Ha ha!
I need to re-read all the main studies again I figure, but hell's bells maybe the easiest thing would be to just have more people try this drug. I want to spend time looking at other Kv's that may be hiding in plain sight.
Best, Michael