Related Experiment Video
Updated: May 10, 2026
13:07
One-channel Cell-attached Patch-clamp Recording
Published on: June 9, 2014
(Biphenyl-4-yl)methylammonium chlorides: potent anticonvulsants that modulate Na+ currents
Hyosung Lee1, Ki Duk Park, Xiao-Fang Yang
1Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy and ⊥Department of Chemistry, University of North Carolina , Chapel Hill, North Carolina 27599, United States.
Journal of Medicinal Chemistry
|June 19, 2013
Summary
New anticonvulsant compounds, (biphenyl-4-yl)methylammonium chlorides, show broad activity in animal models. Compound 8 demonstrated superior anticonvulsant effects compared to phenobarbital and phenytoin in rats.
Area of Science:
- Medicinal Chemistry
- Neuropharmacology
- Drug Discovery
Background:
- Biaryl compounds modulate sodium (Na+) currents, influencing inactivation processes.
- These electrophysiological properties are linked to the mechanisms of established antiepileptic drugs.
Purpose of the Study:
- To investigate the anticonvulsant potential of (biphenyl-4-yl)methylammonium chlorides (compound class B).
- To characterize the electrophysiological effects of a specific compound, (3'-trifluoromethoxybiphenyl-4-yl)methylammonium chloride (8).
Main Methods:
- Anticonvulsant activity screening in animal seizure models.
- Electrophysiological assessment of compound 8 on Na+ currents in neuronal cells.
Main Results:
- Compound class B exhibited a wide spectrum of anticonvulsant activities.
- Compound 8 showed superior efficacy over phenobarbital and phenytoin in the maximal electroshock seizure test in rats.
- Electrophysiological studies confirmed compound 8 promotes slow and fast inactivation of Na+ currents without affecting frequency-dependent block.
Conclusions:
- The (biphenyl-4-yl)methylammonium chloride scaffold represents a promising class of compounds for developing novel anticonvulsant therapies.
- Compound 8's mechanism involves modulation of Na+ channel inactivation, supporting its potential as an antiepileptic agent.
More Related Videos
Related Concept Videos
01:08Antiepileptic Drugs: Sodium Channel Blockers
Antiepileptic drugs are specialized medications that prevent seizures in individuals diagnosed with epilepsy. These drugs primarily function by blocking the movement of sodium ions through channels in the neuronal membrane, inhibiting the repetitive firing of action potentials often associated with seizures.
Sodium channel blockers modulate ion channels, particularly voltage-gated sodium channels. They block only sodium ion movement.
Among the most commonly prescribed antiepileptic drugs are...
Sodium channel blockers modulate ion channels, particularly voltage-gated sodium channels. They block only sodium ion movement.
Among the most commonly prescribed antiepileptic drugs are...
01:17Antiepileptic Drugs: Calcium Channel Blockers
Calcium channel blockers, a class of antiepileptic drugs, regulate the flow of calcium ions within neurons.
Calcium channel blockers exert their antiepileptic effects by targeting T-type calcium channels, which are integral to transmitting nerve signals in the central nervous system. These channels allow the passage of calcium ions, which are vital for neuronal communication. By inhibiting T-type calcium channels, calcium channel blockers effectively reduce the release of neurotransmitters and...
Calcium channel blockers exert their antiepileptic effects by targeting T-type calcium channels, which are integral to transmitting nerve signals in the central nervous system. These channels allow the passage of calcium ions, which are vital for neuronal communication. By inhibiting T-type calcium channels, calcium channel blockers effectively reduce the release of neurotransmitters and...
01:18Antiepileptic Drugs: GABAergic Pathway Potentiators
γ-aminobutyric acid or GABA, plays a pivotal role as an inhibitory neurotransmitter in the brain. GABA pathway potentiators, also known as GABAergic drugs, are a class of pharmaceutical agents designed to enhance the functioning of the GABAergic system. These medications primarily treat epilepsy, a neurological disorder characterized by recurrent seizures.
The key GABA pathway potentiators used in epilepsy management are as follows.
Benzodiazepines are a well-known class of drugs used for their...
The key GABA pathway potentiators used in epilepsy management are as follows.
Benzodiazepines are a well-known class of drugs used for their...
01:20Antiepileptic Drugs: Modulators of Neurotransmitter Release Mediated by SV2A Protein
Antiepileptic drugs, such as levetiracetam (Keppra) and brivaracetam (Briviact), have emerged as crucial tools in managing epilepsy. These medications exert their therapeutic effects by targeting the synaptic vesicle protein SV2A, a transmembrane glycoprotein primarily found in the brain.
SV2A is a transmembrane glycoprotein located predominantly in the brain, modulating the release of neurotransmitters for neuronal communication. Both levetiracetam and brivaracetam exhibit a high affinity for...
SV2A is a transmembrane glycoprotein located predominantly in the brain, modulating the release of neurotransmitters for neuronal communication. Both levetiracetam and brivaracetam exhibit a high affinity for...
01:14Antiepileptic Drugs: Glutamate Antagonists
Glutamate is a fundamental neurotransmitter in the central nervous system, playing a vital role in neuronal communication and various cognitive processes. Glutamate stands as the principal excitatory neurotransmitter in the brain. Its presence is crucial for the communication between neurons, underpinning essential processes such as synaptic transmission, neuronal excitability, and plasticity. These functions are vital for higher-order cognitive processes, including learning and memory. The...
01:20Antiepileptic Drugs: Potassium Channel Activators
Ezocgabine or retigabine, an antiepileptic drug of remarkable efficacy, has revolutionized the management of seizures. It is a potassium channel activator, explicitly targeting the family of Q subtype potassium channels. It enhances the transmembrane potassium currents, regulating neuronal excitability. This action stabilizes the resting membrane potential, a pivotal factor in mitigating the hyperexcitability that characterizes epilepsy.
Ezogabine has gained approval as an adjunctive treatment...
Ezogabine has gained approval as an adjunctive treatment...