Allopregnanolone and perampanel as adjuncts to midazolam for treating diisopropylfluorophosphate-induced status epilepticus in rats
| العنوان: | Allopregnanolone and perampanel as adjuncts to midazolam for treating diisopropylfluorophosphate-induced status epilepticus in rats |
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| المؤلفون: | Eduardo A. González, Danielle J Harvey, Ashish Dhir, Donald A. Bruun, Daniel J. Tancredi, Pamela J. Lein, Jonas J. Calsbeek, Naomi Saito, Michelle Guignet, Joan Vu, Yi Hua Tsai, Michael A. Rogawski |
| المصدر: | Annals of the New York Academy of Sciences Annals of the New York Academy of Sciences, vol 1480, iss 1 |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | 0301 basic medicine, Male, Isoflurophate, Pregnanolone, Pharmacology, Neurodegenerative, Rats, Sprague-Dawley, Perampanel, chemistry.chemical_compound, 0302 clinical medicine, Status Epilepticus, neuroactive steroid, Medicine, heterocyclic compounds, GABAA receptor positive allosteric modulator, GABA(A)receptor positive allosteric modulator, Behavior, Animal, General Neuroscience, Electroencephalography, organophosphate nerve agent, Nyaspubl8657, Combination, Drug Therapy, Combination, Original Article, medicine.symptom, benzodiazepine, medicine.drug, Nyasmole2400, Nyasneur1110, Neuroactive steroid, medicine.drug_class, General Science & Technology, Pyridones, Midazolam, Status epilepticus, AMPA receptor, General Biochemistry, Genetics and Molecular Biology, 03 medical and health sciences, History and Philosophy of Science, Drug Therapy, Nitriles, Animals, Benzodiazepine, Behavior, status epilepticus, Epilepsy, business.industry, Animal, Allopregnanolone, AMPA receptor antagonist, Neurosciences, Original Articles, Brain Disorders, Rats, 030104 developmental biology, chemistry, Sprague-Dawley, business, 030217 neurology & neurosurgery |
| الوصف: | Combinations of midazolam, allopregnanolone, and perampanel were assessed for antiseizure activity in a rat diisopropylfluorophosphate (DFP) status epilepticus model. Animals receiving DFP followed by atropine and pralidoxime exhibited continuous high‐amplitude rhythmical electroencephalography (EEG) spike activity and behavioral seizures for more than 5 hours. Treatments were administered intramuscularly 40 min after DFP. Seizures persisted following midazolam (1.8 mg/kg). The combination of midazolam with either allopregnanolone (6 mg/kg) or perampanel (2 mg/kg) terminated EEG and behavioral status epilepticus, but the onset of the perampanel effect was slow. The combination of midazolam, allopregnanolone, and perampanel caused rapid and complete suppression of EEG and behavioral seizures. In the absence of DFP, animals treated with the three‐drug combination were sedated but not anesthetized. Animals that received midazolam alone exhibited spontaneous recurrent EEG seizures, whereas those that received the three‐drug combination did not, demonstrating antiepileptogenic activity. All combination treatments reduced neurodegeneration as assessed with Fluoro‐Jade C staining to a greater extent than midazolam alone, and most reduced astrogliosis as assessed by GFAP immunoreactivity but had mixed effects on markers of microglial activation. We conclude that allopregnanolone, a positive modulator of the GABAA receptor, and perampanel, an AMPA receptor antagonist, are potential adjuncts to midazolam in the treatment of benzodiazepine‐refractory organophosphate nerve agent–induced status epilepticus. In the present study, we demonstrate the potential of allopregnanolone, a positive modulator of the GABAA receptor, and perampanel, an AMPA receptor antagonist, as adjuncts to the benzodiazepine midazolam in the treatment of organophosphate nerve agent–induced status epilepticus using the rat diisopropylfluorophosphate model. |
| وصف الملف: | application/pdf |
| تدمد: | 1749-6632 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d519742347668bd03de497d5b16d7265 https://pubmed.ncbi.nlm.nih.gov/32915470 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....d519742347668bd03de497d5b16d7265 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 17496632 |
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