In the study, the active drugs molecules used in the treatment of convulsive seizures occurring in epilepsy disease were used. These molecules; Vigabatrin, Lokosamidin, Zonisamide, Oxcarbazepine, Levetiracetam, Tiagabin, Topiramate, Lamotrigine, Gabapentin, Felbamate, Ethosuximide, Valproic Acid, Mesuximide, Ethotoin, Primidone, Trimethadion, Phenytoin, Remasemide, Mephenytoin. These molecules have been selected considering the physiopathological mechanisms of action of epilepsy. Since the selected molecules are used as a potential antiepileptic agent, they were deemed suitable for molecular insertion studies. In addition, voltage-gated calcium channels, which play an important role in epilepsy, are emphasized. Voltage-gated calcium channels (CaV) act by providing the flow of Ca+ ions during the action potential that triggers seizure formation, and among the ten subtypes of voltage-gated calcium (CaV) channels, CaV3.1- CaV3.3, T-type or abnormal activities are associated with epilepsy, psychiatric form the associated low-voltage-activated subfamily. For this reason, the PDB ID: 6KZP receptor, which acts as an antagonist according to its activity on the channel in the formation of epileptic seizures, was chosen for the molecular insertion study. As a result of molecular placement studies; Oxcarbazepine and Phenytoin gave the best binding affinity for 6KZP with a value of -7.5 kcal/mol. Other results are in descending order (in kcal/mol); Tiagabine (-7.4), Mesuximide (-7.3), Primidone (-7.1), Remasemide (-7.0), Topiramate (-6.9) Mephenytoin (-6.7), Lomotrigine and Ethotoin (-6.4), Locosamide and Zonisamide (-6.1) , Felbamate (-6.0), Levetiracetam and Gabapentin (-5.4), Esuximide (-5.1), Valproic Acid (-4.9), Trimethadione (-4.7), Vigabatrin (-4.4) determined as.
The aim of this study is to examine the effects of drug active compounds, which are widely used in the treatment of epilepsy, on voltage-gated Na+ channels are important channels that advance the action potential in the excitation direction by molecular docking method. These molecules have been selected considering the physiopathological effect mechanisms of epilepsy disease. When the action potential is stimulated, Na+ channels allow sodium ion entry into the cell and cause epilepsy seizures. For this reason, PDB ID: 4PA6 receptor, which acts as an antagonist according to its activity on the canal in the formation of epileptic seizures, was chosen for molecular docking study. As a result of molecular docking studies; Phenytoin gave the best binding affinity for 4PA6 with a value of -7.7 kcal/mol. Other results in descending order (as kcal/mol); Mesuximide (-7.5), Remasemide (-7.3), Tiagabine (-7.1), Ethotoin and Mephenytoin (-7.0), Primidon (-6.9), Topiramate (-6.6), Oxcarbazepine and Lamotrigin (-6.3), Felbamat (-6.0), Lokosamidine (-5.9), Zonisamide (-5.8), Levetiresetam and Gabapentin (-5.7), Ethosuximide (-5.6), Trimethadion (-5.1), Valproic Acid (-5.0), Vigabatrin (-4.0), determined as.
This study includes the structure-activity relationship of active molecules that are commonly used in the treatment of convulsive seizures in epileptic diseases. Well-known epileptic active molecules studied are: Vigabatrin, Lokosamidine, Zonisamide, Oxcarbazepine, Levetiresetam, Tiagabine, Topiramate, Lamotrigin, Gabapentin, Felbamat, Ethosuximide, Valproic Acid, Mesuximide, Ethotoin, Primidon, Trimethadion, Phenytoin, Remasemide, Mephenytoin. These molecules, which were selected considering the physiopathological mechanisms of action of epileptic disease, were considered suitable for molecular docking studies since they were used as a potential antiepileptic agent. In addition, it was focused on the potassium channels, which were prominent in the mechanisms of epilepsy. During the action potential that triggers seizure formation, inward rectifying potassium channels (KIR3.2) make a important role providing the flow of K+ ions. Thus, PDB ID: 4KFM receptor was chosen for molecular docking study, since its act as an agonist according to its activity on the canal in the case of epileptic seizures formation. The result of molecular docking analysis demonstrated that Phenytoin gave the best binding affinity for 4KFM with a value of -6.2 kcal/mol. Other analysis in descending order (as kcal/mol); Oxcarbazepine (-6,0), Remasemide (-5.9), Topiramate and Primidon (-5.8), Tiagabine, Felbamat and Mesuximide (-5.7), Lamotrigin (-5.6) Zonisamide, Ethotoin and Mephenytoin, Lokosamidine (-5.5), Gabapentin (-4.8), Trimethadion (-4.7), Ethosuximide (-4.6), Levetiresetam (-4.5), Vigabatrin (-4.0), Valproic Acid (-3.9) determined as.
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