Search results
Results from the WOW.Com Content Network
Memantine does not undergo extensive metabolism. [9] It is negligibly metabolized by the cytochrome P450 enzymes. [8] [9] As a result, it has a decreased potential for drug interactions. [9] Metabolites of memantine include memantine glucuronide, 6-hydroxymemantine, and 1-nitrosomemantine, all of which show minimal activity as NMDA receptor ...
The binding pockets are shown in figure 2. Memantine binds at or near to the Mg 2+ site inside the NMDA receptor associated channel. The -NH 2 group on memantine, which is protonated under physiological pH of the body, represents the region that binds at or near to the Mg 2+ site. [18]
Planar cell polarity was first described in insects and then further defined in fruit flies (Drosophila melanogaster).Some of the earlier work on gene controlled polarity of fly wings was published by D. Gubb and A. García-Bellido in 1982 describing how the mutation of some genes resulted in a morphology change in the cuticle orientation on the fly body. [6]
Olney's lesions, also known as NMDA receptor antagonist neurotoxicity (NAT), is a form of brain damage consisting of selective death of neurons but not glia, observed in restricted brain regions of rats and certain other animal models exposed to large quantities of psychoactive drugs that inhibit the normal operation of the neuronal NMDA receptor.
Like memantine, nitromemantine is a low-affinity voltage-dependent uncompetitive antagonist at glutamatergic NMDA receptors, however nitromemantine selectively inhibits extrasynaptic NMDA receptors while sparing normal physiological synaptic NMDA receptor activity, resulting in less side effects and a greater neuroprotective action, as well as stimulating regrowth of synapses with prolonged ...
Among dividing cells, there are multiple levels of cell potency, which is the cell's ability to differentiate into other cell types. A greater potency indicates a larger number of cell types that can be derived. A cell that can differentiate into all cell types, including the placental tissue, is known as totipotent.
These are traditionally numbered in the older research as first the cyclohexyl ring, then the phenyl, and finally the piperidine ring, with the different rings represented by prime notation (') next to the number. For instance, 4-methyl-PCP, 4'-methyl-PCP and 4''-methyl-PCP are all known compounds, with similar activity but quite different ...
If these receptors are ligand-gated ion channels, a resulting conformational change opens the ion channels, which leads to a flow of ions across the cell membrane. This, in turn, results in either a depolarization, for an excitatory receptor response, or a hyperpolarization, for an inhibitory response.