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Karabulut S, Filiz AK, Akkaya R. Thiamine alleviates cognitive impairment and epileptogenesis by relieving brain inflammation in PTZ-induced kindling rat model. Neurol Res 2022; 44:902-909. [PMID: 35446240 DOI: 10.1080/01616412.2022.2066785] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Epileptogenesis, the process by which the brain becomes epileptic, is related to neuroinflammation, hyperexcitability cognitive deficits. Evidence suggests that improving brain inflammation can inhibit the epileptogenesis process and help the emergence of new drugs for the treatment of epilepsy. Therefore, the PTZ kindling model of epilepsy was utilized to assess the neuroprotective role of thiamine in epileptogenesis. METHODS Male rats were exposed to PTZ-induced kindling and pretreated with low thiamine (25 mg/kg) or high thiamine (50 mg/kg). Cyclooxygenase (COX-1 and COX-2), interleukin 1-beta (IL-1β), tumor necrosis factor-alpha (TNF-α), and nuclear factor-κB (NF-κB) concentrations in the brain were analyzed using biochemical assays. Cognitive function was evaluated using the passive avoidance test. RESULTS Thiamine ameliorated epileptogenesis and enhanced the rats' performance in the passive avoidance test. Also, thiamine significantly decreased the level of neuroinflammatory mediators in the brain induced by PTZ. CONCLUSION These results provide evidence that thiamine alleviates PTZ-induced neuroinflammation and cognitive impairments.
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Affiliation(s)
- Sebahattin Karabulut
- Department of Medical Services and Techniques, Vocational School of Health Services, Sivas Cumhuriyet University, Sivas, Turkey
| | - Ahmet Kemal Filiz
- Department of Medical Physiology, Faculty of Medicine, Sivas Cumhuriyet University, Sivas, Turkey
| | - Recep Akkaya
- Department of Biophysics, Faculty of Medicine, Sivas Cumhuriyet University, Sivas, Turkey
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Wang P, Ma K, Yang L, Zhang G, Ye M, Wang S, Wei S, Chen Z, Gu J, Zhang L, Niu J, Tao S. Predicting signaling pathways regulating demyelination in a rat model of lithium-pilocarpine-induced acute epilepsy: A proteomics study. Int J Biol Macromol 2021; 193:1457-1470. [PMID: 34742844 DOI: 10.1016/j.ijbiomac.2021.10.209] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 11/18/2022]
Abstract
Demyelination is observed in animal models of intractable epilepsy (IE). Epileptogenesis damages the myelin sheath and dysregulates oligodendrocyte precursor cell (OPC) development. However, the molecular pathways regulating demyelination in epilepsy are unclear. Here, we predicted the molecular mechanisms regulating demyelination in a rat model of lithium-pilocarpine hydrochloride-induced epilepsy. We identified DGKA/Mboat2/Inpp5j and NOS/Keratin 28 as the main target molecules that regulate demyelination via glycerolipid and glycerophospholipid metabolism, phosphatidylinositol signaling, and estrogen signaling in demyelinated forebrain slice cultures (FSCs). In seizure-like FCSs, the actin cytoskeleton was regulated by Cnp and MBP via Pak4/Tmsb4x (also known as Tβ4) and Kif5c/Kntc1. Tβ4 possibly prevented OPC differentiation and maturation and inhibited MBP phosphorylation via the p38MAPK/ERK1/JNK1 pathway. The MAPK signaling pathway was more likely activated in seizure-like FCSs than in demyelinated FCSs. pMBP expression was decreased in the hippocampus of lithium-pilocarpine hydrochloride-induced acute epilepsy rats. The expression of remyelination-related factors was suppressed in the hippocampus and corpus callosum in lithium-pilocarpine hydrochloride-induced epilepsy rats. These findings suggest that the actin cytoskeleton, Tβ4, and MAPK signaling pathways regulate the decrease in pMBP in the hippocampus in a rat model of epilepsy. Our results indicate that regulating the actin cytoskeleton, Tβ4, and MAPK signaling pathways may facilitate the prevention of demyelination in IE.
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Affiliation(s)
- Peng Wang
- Ningxia Key Laboratory of Cerebrocranial Diseases, Ningxia Medical University, Yinchuan 750004, China.
| | - Kang Ma
- Department of Anatomy, Ningxia Medical University, Yinchuan 750004, China
| | - Lu Yang
- Ningxia Key Laboratory of Cerebrocranial Diseases, Ningxia Medical University, Yinchuan 750004, China
| | - Guodong Zhang
- School of Clinical Medicine, Ningxia Medical University, Yinchuan 750004, China
| | - Mengyi Ye
- Ningxia Medical University College of Traditional Chinese Medicine, Yinchuan 750004, Ningxia, China
| | - Siqi Wang
- School of Clinical Medicine, Ningxia Medical University, Yinchuan 750004, China
| | - Shuangshuang Wei
- School of Clinical Medicine, Ningxia Medical University, Yinchuan 750004, China
| | - Zhangping Chen
- Ningxia Key Laboratory of Cerebrocranial Diseases, Ningxia Medical University, Yinchuan 750004, China
| | - Jinghai Gu
- Ningxia Key Laboratory of Cerebrocranial Diseases, Ningxia Medical University, Yinchuan 750004, China
| | - Lianxiang Zhang
- Department of Anatomy, Ningxia Medical University, Yinchuan 750004, China
| | - Jianguo Niu
- Department of Anatomy, Ningxia Medical University, Yinchuan 750004, China.
| | - Sun Tao
- Ningxia Key Laboratory of Cerebrocranial Diseases, Ningxia Medical University, Yinchuan 750004, China; Department of Neurosurgery, General Hospital of Ningxia Medical University, 804 Shengli Street, Yinchuan 750004, Ningxia, China.
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Taskiran AS, Ergul M. The modulator action of thiamine against pentylenetetrazole-induced seizures, apoptosis, nitric oxide, and oxidative stress in rats and SH-SY5Y neuronal cell line. Chem Biol Interact 2021; 340:109447. [PMID: 33771525 DOI: 10.1016/j.cbi.2021.109447] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 12/24/2020] [Accepted: 03/17/2021] [Indexed: 11/19/2022]
Abstract
Accumulating evidences indicate that thiamine plays a vital role in the nervous system. However, questions exist as to how it causes epilepsy, neuronal damage, and antiepileptic mechanisms. The study looked at how the thiamine supplement impacted pentylenetetrazole (PTZ)-induced seizures in rats and pentylenetetrazole-induced neurotoxicity in the SH-SY5Y cell line. We used twenty-four male rats and they were randomly divided into 4 groups as control, saline (1 mL/kg/day serum physiologic) + PTZ, thiamine (50 mg/kg/day) + PTZ, and thiamine (50 mg/kg/day) for 10 days. PTZ (45 mg/kg) was given to activate the seizure on day 10. Memory efficiency was measured by using passive avoidance. The brain levels of 8-hydroxy-2'-deoxyguanosine (8-OHdG), caspase-3, nitric oxide (NO), and cyclic guanosine monophosphate (cGMP) were analyzed by using ELISA kits. SH-SY5Y cells were treated with/without thiamine for 1 h, followed by PTZ (30 μm) at a medium level to trigger neurotoxicity. Cell viability, total antioxidant status, total oxidant status, and apoptosis were assayed in the SH-SY5Y cells. Thiamine delayed the initiation of epileptic seizures and increased memory damage. In addition, 8-OHdG, caspase-3, NO, and cGMP levels were significantly reduced in the brain and prevented pentylenetetrazole-induced neurotoxicity, apoptosis, enhanced antioxidant, and reduced oxidant in SH-SY5Y cells. Thiamine dramatically altered seizures, memory loss, oxidative stress, and apoptosis. Thiamine has a preventative effect on PTZ-induced seizures in rats and PTZ-induced neurotoxicity in SH-SY5Y neuroblastoma cells. It could prevent oxidative stress and signaling of NO/cGMP. Thiamine supplement could be used as an additional therapeutic agent in epilepsy.
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Affiliation(s)
- Ahmet Sevki Taskiran
- Department of Physiology, Sivas Cumhuriyet University, School of Medicine, Sivas, Turkey.
| | - Mustafa Ergul
- Department of Biochemistry, Sivas Cumhuriyet University, School of Pharmacy, Sivas, Turkey
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Zhang H, Lu T, Feng Y, Sun X, Yang X, Zhou K, Sun R, Wang Y, Wang X, Chen M. A metabolomic study on the gender-dependent effects of maternal exposure to fenvalerate on neurodevelopment in offspring mice. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 707:136130. [PMID: 31869608 DOI: 10.1016/j.scitotenv.2019.136130] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 12/10/2019] [Accepted: 12/13/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND The general population is widely exposed to fenvalerate. However, the effects of maternal exposure to fenvalerate on neurodevelopment in offspring and the underlying metabolic mechanism are largely unknown. METHODS Pregnant mice were exposed to fenvalerate for 11 consecutive days. The forced swimming test (FST) was performed in 35 day-old offspring to investigate the effects of fenvalerate on neurobehavioral responses. Blood serum free T4 and free T3 concentrations were measured using commercial ELISA. Blood and thyroid samples were used for metabolomic analyses with UPLC Q-Exactive. The expression levels of neurotransmitter metaolite receptors were determined in the frontal cortex of offspring using real-time PCR. RESULTS The immobility time, free T4 and free T3, and expression levels of Htr1a and Htr2a were statistically changed in offspring male mice. Metabolomic analysis revealed that the pentose phosphate pathway, starch and sucrose metabolism, glutamic acid metabolism were the key changed pathways in the blood, and thiamine metabolism was the key changed pathway in the thyroid. CONCLUSION Prenatal exposure to fenvalerate affected neurodevelopment in male offspring mice both via the changed abundances of metabolites involved in glycolysis related metabolism and medium-chain fatty acid metabolism, and the changes in 5-HT receptor expression.
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Affiliation(s)
- Heng Zhang
- Department of Child Health Care, The Affiliated Wuxi Maternity and Child Health Care Hospital of Nanjing Medical University, Wuxi 214002, China.
| | - Ting Lu
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Yaling Feng
- Department of Obstetrics and Gynecology, The Affiliated Wuxi Maternity and Child Health Care Hospital of Nanjing Medical University, Wuxi 214002, China
| | - Xian Sun
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Xu Yang
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Kun Zhou
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Rongli Sun
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Yubang Wang
- Safety Assessment and Research Center for Drug, Pesticide and Veterinary Drug of Jiangsu Province, Nanjing Medical University, Nanjing 211166, China
| | - Xinru Wang
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Minjian Chen
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
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El‐Megharbel SM, Hamza RZ, Gobouri AA, Refat MS. Synthesis of new antidiabetic agent by complexity between vanadyl (II) sulfate and vitamin B1: Structural, characterization, anti‐DNA damage, structural alterations and antioxidative damage studies. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4892] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Samy M. El‐Megharbel
- Chemistry Department, Faculty of ScienceTaif University PO Box 888, Al‐Hawiah Taif 21974 Saudi Arabia
- Chemistry Department, Faculty of ScienceZagazig University Zagazig 44519 Egypt
| | - Reham Z. Hamza
- Zoology Department, Faculty of ScienceZagazig University Zagazig 44519 Egypt
- Biology Department, Faculty of ScienceTaif University Taif 21974 Saudi Arabia
| | - Adil A. Gobouri
- Chemistry Department, Faculty of ScienceTaif University PO Box 888, Al‐Hawiah Taif 21974 Saudi Arabia
| | - Moamen S. Refat
- Chemistry Department, Faculty of ScienceTaif University PO Box 888, Al‐Hawiah Taif 21974 Saudi Arabia
- Chemistry Department, Faculty of Science, Port SaidPort Said University Egypt
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Investigating owner use of dietary supplements in dogs with idiopathic epilepsy. Res Vet Sci 2018; 119:276-284. [PMID: 30064067 DOI: 10.1016/j.rvsc.2018.07.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 06/01/2018] [Accepted: 07/21/2018] [Indexed: 12/29/2022]
Abstract
Epilepsy is the most common chronic neurological disorder in dogs. Some diets have been shown to have a positive impact upon the seizure activity in dogs with idiopathic epilepsy (IE), while other diets and dietary supplements (DS), although marketed as providing health benefits, lack conclusive scientific evidence on their actual beneficial effects. A web-based owner questionnaire was designed to assess how and why owners of dogs with IE use different dietary regimes and DS. The study cohort, with 297 valid responses, consisted mainly of pure-breed (82.5%) male neutered (52.9%) dogs. Over two-thirds of owners (67.7%) changed their dog's diet after their dog received a diagnosis of IE. Nearly half of the owners (45.8%) reported giving DS, the most common being coconut oil or derived medium-chain triglyceride oil (71.3%). Some owner justifications of DS use included improvement of seizure frequency (88.2%), seizure severity (61.8%) and protection from potential drug side effects (62.5%). Many owners give DS to their dog with IE. The pharmacokinetic properties of anti-epileptic drugs, such as efficacy, absorption and clearance can be influenced by other medications, diets and possibly by DS. We propose that use of DS should be considered and monitored by veterinary surgeons in epilepsy management.
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Mesdaghinia A, Alinejad M, Abed A, Heydari A, Banafshe HR. Anticonvulsant effects of thiamine on pentylenetetrazole-induced seizure in mice. Nutr Neurosci 2017; 22:165-173. [DOI: 10.1080/1028415x.2017.1357919] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Azam Mesdaghinia
- Physiology Research Center, Kashan University of Medical Sciences, Kashan, Iran
- Department of Pharmacology, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Marziye Alinejad
- Physiology Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Alireza Abed
- Department of Pharmacology, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Azhdar Heydari
- Physiology Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Hamid Reza Banafshe
- Physiology Research Center, Kashan University of Medical Sciences, Kashan, Iran
- Department of Pharmacology, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
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Selected Literature Watch. JOURNAL OF CAFFEINE RESEARCH 2014. [DOI: 10.1089/jcr.2014.1238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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