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Öğe Anesthesia Applications in Experimental Neurological Disease Modeling(Duzce Univ, Fac Medicine, 2024) Cetinkaya, Ayhan; Celik, HumeyraNeuroscience, which covers the molecular mechanisms employed by the brain to cause neurological diseases and how they can be treated, remains current as the subject of high-budget investigations to develop early diagnosis and new treatment modalities with multidisciplinary approaches. For this purpose, creating the appropriate model with the correct modality and anesthesia in neurological in vivo experimental models is the most important phase to obtain accurate results and ensure animal welfare. To manage anesthesia in rodents, knowing the physiological characteristics of anesthetics and their risks will strengthen experimental procedures. Among the injectable anesthetics, ketamine, xylazine, and pentobarbital are the most frequently preferred agents for general anesthesia in short surgical procedures. Isoflurane and sevoflurane are inhaler anesthetics that are administered through a vaporizer because they are liquids. Important advantages of inhaled anesthetics, such as rapid induction and rapid withdrawal, make inhaled anesthetics stand out in neuroscience studies. In this review, the properties of frequently used anesthetic agents in rodents, their usage methods, and which model they are preferred will be discussed. For this purpose, the selection of appropriate anesthetics in animal models such as epilepsy, Alzheimer's disease, ischemia-reperfusion injury, traumatic brain injury, ischemic stroke, experimental autoimmune encephalomyelitis, and ophthalmic surgical procedures and their side effects will be reviewed.Öğe Electrophysiologic and anti-inflammatorial effects of cyclooxygenase inhibition in epileptiform activity(Wiley, 2023) Turel, Canan Akunal; Celik, Humeyra; Cetinkaya, Ayhan; Turel, IdrisThe aim of our study is to investigate the electrophysiological and anti-inflammatory effects of diclofenac potassium on epileptiform activity, which is the liquid form of diclofenac, and frequently used clinically for inflammatory process by inhibiting cyclooxygenase enzyme (COX). Wistar rats aged 2-4 months were divided into Epilepsy, Diazepam, Diclofenac potassium, and Diazepam+diclofenac potassium groups. Diazepam and diclofenac potassium were administered intraperitoneally 30 min after the epileptiform activity was created with penicillin injected intracortically under anesthesia. After the electrophysiological recording was taken in the cortex for 125 min, interleukin-1 beta (IL-1 beta), interleukin-6 (IL-6), and tumor necrosis factor-alpha (TNF-alpha) were evaluated by the ELISA in the serums. No change was observed between the groups in serum IL-1 beta, IL-6, and TNF-alpha values. It was observed that the co-administration of diclofenac potassium and diazepam at 51-55, 56-60, 61-65, 111-115, and 116-120 min was more effective in reducing spike amplitude than diclofenac potassium alone (p < 0.05). Single-dose diclofenac potassium did not have an anti-inflammatory effect in epileptiform activity but both diazepam and diclofenac potassium reduced the epileptiform activity.Öğe High dose corticosteroid causes bradycardia in patients with multiple sclerosis(Wiley, 2024) Sayman, Ceyhun; Celik, Humeyra; Cankaya, Seyda; Oktem, Ece Ozdemir; Yulug, Burak[Abstract Not Available]Öğe Is increased activator protein 1 in cerebrospinal fluid as a potential biomarker that distinguishes idiopathic intracranial from sclerosis?(Aepress Sro, 2024) Karabork, Seyda; Celik, Humeyra; Dursun, Ali Dogan; Ankarali, Handan; Turkoglu, Sule AydinOBJECTIVES: To distinguish whether idiopathic intracranial hypertension (IIH) is a condition predisposing to multiple sclerosis (MS) or an isolated disease, the current gene transcription factor Activator Protein -1 (AP -1) was evaluated with its potential to differentiate both diseases. BACKGROUND: The aim of this study was to investigate the use of AP -1 as biomarkers for the discrimination of IIH and MS. METHODS: AP -1, TNF-alpha, and IL -6 protein values in the CSF of the cases were evaluated by the ELISA method. The numerical measures of the groups and the ability of AP -1 to distinguish the groups were analyzed with the ROC curve. RESULTS: There was no difference between the groups in CSF TNF-alpha, IL -6, CSF, and serum biochemistry analyses. However, it was determined that the AP -1 concentration (pg/ml) was significantly higher in the IIH group, the sensitivity of AP -1 in separating those with IIH was 75%, and the specificity in separating those with MS was 60% in those with an AP -1 concentration of 606.5 and above. CONCLUSION: According to our results, the fact that CSF TNF-alpha and IL -6 values did not differ in IIH compared to MS revealed that IIH could not methodologically control MS, and AP -1 was a supportive parameter in differentiating both diseases (Tab. 2, Fig. 1, Ref. 31) . Text in PDF www.elis.skÖğe The Role and Mechanisms of Type-1 Diabetes, Insulin and Insulin Receptor in Migraine Pathophysiology(Wiley, 2025) Torun, Ibrahim Ethem; Celik, Humeyra; Kilinc, Erkan; Kurtoglu, Muhammet Guzel[Abstract Not Available]
