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Dos Santos MM, Ferreira SA, de Macedo GT, Claro MT, Müller TE, Prestes ADS, da Rocha JBT, Núñez-Figueredo Y, Barbosa NDV. JM-20 potently prevents the onset of caffeine-induced anxiogenic phenotypes in zebrafish (Danio rerio). Comp Biochem Physiol C Toxicol Pharmacol 2024; 277:109843. [PMID: 38237841 DOI: 10.1016/j.cbpc.2024.109843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 12/29/2023] [Accepted: 01/11/2024] [Indexed: 01/21/2024]
Abstract
Anxiety is among the most prevalent mental disorders present in the general population. Benzodiazepines are the most commonly prescribed drugs for the treatment of anxiety. Using zebrafish as a model organism, we investigated the anxiolytic activity of JM-20, a novel hybrid molecule with a 1,5-benzodiazepine ring fused to a dihydropyridine moiety. Firstly, we carried out some assays to analyze the possible toxicity mediated by JM-20. For this, zebrafish were exposed to different JM-20 concentrations (0-5 μM) for 96 h. Then, using the novel tank test, we evaluated both locomotor and anxiety-like behavior of the animals. Furthermore, brain, liver and plasma were removed to assess toxicity parameters. JM-20 exposure did not cause changes on novel tank, and also did not alter brain viability, hepatic LDH and plasma ALT levels. Afterward, we investigated whether a pre-exposure to JM-20 would prevent the anxiogenic effect evoked by caffeine. In the novel tank test, caffeine significantly decreased the time spent at the top, as well as the number of transitions to the top area. Moreover, caffeine decreased both the total and average time spent in the lit area, as well as increased the number of risk episodes evaluated by the light-dark test. Whole-body cortisol levels were also increased by caffeine exposure. Interestingly, pre-treatment with JM-20 abolished all alterations induced by caffeine. The anxiolytic effect profile of JM-20 was similar to those found for diazepam (positive control). Our findings show, for the first time, the anxiolytic effect of JM-20 in zebrafish, and its relationship with cortisol regulation.
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Affiliation(s)
- Matheus Mülling Dos Santos
- Programa de Pós-graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 1000, 97105-900 Santa Maria, RS, Brazil; Instituto de Oceanografia, Universidade Federal do Rio Grande (FURG), 96203-900 Rio Grande, RS, Brazil.
| | - Sabrina Antunes Ferreira
- Programa de Pós-graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 1000, 97105-900 Santa Maria, RS, Brazil
| | - Gabriel Teixeira de Macedo
- Programa de Pós-graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 1000, 97105-900 Santa Maria, RS, Brazil
| | - Mariana Torri Claro
- Programa de Pós-graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 1000, 97105-900 Santa Maria, RS, Brazil
| | - Talise Ellwanger Müller
- Programa de Pós-graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 1000, 97105-900 Santa Maria, RS, Brazil
| | - Alessandro de Souza Prestes
- Programa de Pós-graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 1000, 97105-900 Santa Maria, RS, Brazil
| | - João Batista Teixeira da Rocha
- Programa de Pós-graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 1000, 97105-900 Santa Maria, RS, Brazil
| | - Yanier Núñez-Figueredo
- Centro de Investigación y Desarrollo de Medicamentos (CIDEM), Ave 26, No. 1605. Boyeros y Puentes Grandes, CP 10600, La Habana, Cuba
| | - Nilda de Vargas Barbosa
- Programa de Pós-graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 1000, 97105-900 Santa Maria, RS, Brazil
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Khaksar S, Bigdeli M, Mohammadi R. Expression of Na +/Ca 2+ exchangers was enhanced following pre-treatment of olive leaf extract and olive oil in animal model of ischemic stroke. Int J Neurosci 2024:1-15. [PMID: 38153337 DOI: 10.1080/00207454.2023.2300732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 12/26/2023] [Indexed: 12/29/2023]
Abstract
BACKGROUND Neuroprotective role of olive and its natural products can introduce them as alternative candidates for the management of neurodegenerative diseases including stroke. The present study was designed to evaluate whether pretreatment of olive oil and leaf extract can attenuate the most important destructive processes in cerebral ischemia called excitotoxicity. MATERIAL AND METHODS The male rats were categorized into control, virgin olive oil (OVV), MCAO, MCAO + OVV (with doses of 0.25, 0.50 and 0.75 ml/kg as treatment groups), olive leaf extract, MCAO + olive leaf extract (with doses 50, 75 and 100 mg/kg as treatment groups) groups. Rats of treatment groups received gastric gavage with olive oil or leaf extract for 30 consecutive days. After pretreatment, the intraluminal filament technique was used to block middle cerebral artery (MCA) transiently. Neurological deficits, infarct volume and expression of Na+/Ca2+ exchangers (NCX1, NCX2 and NCX3) proteins were measured. RESULTS The results revealed that olive oil at doses of 0.50 and 0.75 ml/kg reduced the infarction and neurological score and upregulated NCXs expression in rat brain. In addition, olive leaf extract at doses of 75 and 100 mg/kg attenuated the infarction and neurological score and enhanced NCXs expression in rat brain. CONCLUSION These findings support the view that olive oil and leaf extract play the neuroprotective role in cerebral ischemia due to the upregulation of NCXs protein expression.
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Affiliation(s)
- Sepideh Khaksar
- Department of Plant Sciences, Faculty of biological Sciences, Alzahra University, Tehran, Iran
| | - Mohammadreza Bigdeli
- Department of Animal Sciences and Marine Biology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran
- Institute for Cognitive and Brain Science, Shahid Beheshti University, Tehran, Iran
| | - Raziyeh Mohammadi
- Department of Animal Sciences and Marine Biology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran
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Li H, Zhang C, Zhou Y, Deng Y, Zheng X, Xue X. Neurovascular protection of alisol A on cerebral ischemia mice through activating the AKT/GSK3β pathway. Aging (Albany NY) 2023; 15:11639-11653. [PMID: 37889534 PMCID: PMC10637819 DOI: 10.18632/aging.205151] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 10/02/2023] [Indexed: 10/28/2023]
Abstract
Alisol A, a triterpene isolated from Alisma Orientale, has been shown to exhibit anti-inflammatory effects and vascular protection. This study was designed to observe the effect of alisol A on cerebral ischemia (CI)-induced neurovascular dysfunction in the hippocampus and to further explore the potential mechanisms. The results showed that alisol A treatment improved the neurological deficits and cognitive impairment of CI mice. Alisol A reduced gliosis and improved neuronal/glial metabolism. Accordingly, alisol A inhibited inflammatory factors IL-6 and IL-1β induced by overactivation of astrocytes and microglia, thus protecting the neurovasculature. Furthermore, alisol A promoted the survival of neurons by decreasing the ratio of Bax/Bcl-2, and protected brain microvascular endothelial cells (BMECs) by upregulating the expression of ZO-1, Occludin and CD31. The phosphorylation of protein kinase B (AKT) and glycogen synthase kinase 3β (GSK3β) increased after treatment with alisol A. To explore the underlying mechanism, AKT was inhibited. As expected, the neurovascular protection of alisol A above was eliminated by AKT inhibition. The present study primarily suggested that alisol A could exert neurovascular protection in the hippocampus of CI mice by activating the AKT/GSK3β pathway and may potentially be used for the treatment of CI.
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Affiliation(s)
- Huihong Li
- The Affiliated Rehabilitation Hospital, Fujian University of Traditional Chinese Medicine, Fuzhou, China
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Caiyun Zhang
- The Zhangpu Hospital of Traditional Chinese Medicine, Zhangzhou, Fujian, China
| | - Yangjie Zhou
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Yunfei Deng
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Xiaoqing Zheng
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Xiehua Xue
- The Affiliated Rehabilitation Hospital, Fujian University of Traditional Chinese Medicine, Fuzhou, China
- Key Laboratory of Cognitive Rehabilitation of Fujian Province, Fuzhou, China
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Rahman Z, Ghuge S, Dandekar MP. Partial blood replacement ameliorates middle cerebral artery occlusion generated neurological aberrations by intervening TLR4 and NLRP3 cascades in rats. Metab Brain Dis 2023; 38:2339-2354. [PMID: 37402080 DOI: 10.1007/s11011-023-01259-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 06/26/2023] [Indexed: 07/05/2023]
Abstract
Acute ischemic stroke is a catastrophic medical condition that causes severe disability and mortality if the sufferer escapes treatment within a stipulated timeframe. While timely intervention with clot-bursting agents like tissue-plasminogen activators abrogates some post-stroke neurologic deficits, no neuroprotective therapy is yet promisingly addresses the post-recanalization neuroinflammation in post-stroke survivors. Herein, we investigated the effect of partial blood replacement therapy (BRT), obtained from healthy and treadmill-trained donor rats, on neurological deficits, and peripheral and central inflammatory cascades using the ischemia-reperfusion animal paradigm. The cerebral ischemia-reperfusion was induced in rats by occlusion of the middle cerebral artery (MCAO) for 90 min, followed by reperfusion. Rats underwent MCAO surgery displayed remarkable sensorimotor and motor deficits in rotarod, foot fault, adhesive removal, and paw whisker tests till 5 days post-surgery. These behavior abnormalities were ameliorated in the BRT-recipient MCAO rats. BRT also reduced the infarct volume and neuronal death in the ipsilateral hemisphere revealed by TTC and cresyl violet staining compared to the MCAO group. Rats received BRT infusion exhibited the reduced expression of glial fibrillary acidic protein, ionized calcium-binding adaptor molecule-1 (Iba-1), and MyD88 on day 5 post-MCAO in immunohistochemistry and immunofluorescent assays. Moreover, elevated levels of toll-like receptor 4 (TLR4) and mRNA expression of IL-1β, TNF-α, matrix metalloproteinase-9 and NLRP3, and decreased levels of zonula occludens-1 in MCAO rats, were reversed following BRT. These findings suggest that the partial BRT may rescind MCAO-induced neurological dysfunctions and cerebral injury by intervening in the TLR4 and NLRP3 pathways in rats.
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Affiliation(s)
- Ziaur Rahman
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, 500037, Telangana, India
| | - Shubham Ghuge
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, 500037, Telangana, India
| | - Manoj P Dandekar
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, 500037, Telangana, India.
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Rahman Z, Bhale NA, Dikundwar AG, Dandekar MP. Multistrain Probiotics with Fructooligosaccharides Improve Middle Cerebral Artery Occlusion-Driven Neurological Deficits by Revamping Microbiota-Gut-Brain Axis. Probiotics Antimicrob Proteins 2023:10.1007/s12602-023-10109-y. [PMID: 37365420 DOI: 10.1007/s12602-023-10109-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/06/2023] [Indexed: 06/28/2023]
Abstract
Recent burgeoning literature unveils the importance of gut microbiota in the neuropathology of post-stroke brain injury and recovery. Indeed, ingestion of prebiotics/probiotics imparts positive effects on post-stroke brain injury, neuroinflammation, gut dysbiosis, and intestinal integrity. However, information on the disease-specific preference of selective prebiotics/probiotics/synbiotics and their underlying mechanism is yet elusive. Herein, we examined the effect of a new synbiotic formulation containing multistrain probiotics (Lactobacillus reuteri UBLRu-87, Lactobacillus plantarum UBLP-40, Lactobacillus rhamnosus UBLR-58, Lactobacillus salivarius UBLS-22, and Bifidobacterium breve UBBr-01), and prebiotic fructooligosaccharides using a middle cerebral artery occlusion (MCAO) model of cerebral ischemia in female and male rats. Three weeks pre-MCAO administration of synbiotic rescinded the MCAO-induced sensorimotor and motor deficits on day 3 post-stroke in rotarod, foot-fault, adhesive removal, and paw whisker test. We also observed a decrease in infarct volume and neuronal death in the ipsilateral hemisphere of synbiotic-treated MCAO rats. The synbiotic treatment also reversed the elevated levels/mRNA expression of the glial fibrillary acidic protein (GFAP), NeuN, IL-1β, TNF-α, IL-6, matrix metalloproteinase-9, and caspase-3 and decreased levels of occludin and zonula occludens-1 in MCAO rats. 16S rRNA gene-sequencing data of intestinal contents indicated an increase in genus/species of Prevotella (Prevotella copri), Lactobacillus (Lactobacillus reuteri), Roseburia, Allobaculum, and Faecalibacterium prausnitzii, and decreased abundance of Helicobacter, Desulfovibrio, and Akkermansia (Akkermansia muciniphila) in synbiotic-treated rats compared to the MCAO surgery group. These findings confer the potential benefits of our novel synbiotic preparation for MCAO-induced neurological dysfunctions by reshaping the gut-brain-axis mediators in rats.
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Affiliation(s)
- Ziaur Rahman
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, 500037, Telangana, India
| | - Nagesh A Bhale
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana, India
| | - Amol G Dikundwar
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana, India
| | - Manoj P Dandekar
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, 500037, Telangana, India.
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Hong L, Jiang H, Liu M, Zhao G, Shi X, Tan H, Peng D, Wang L, Chen W, He L. Investigation of Naoluoxintong on the neural stem cells by facilitating proliferation and differentiation in vitro and on protecting neurons by up-regulating the expression of nestin in MCAO rats. JOURNAL OF ETHNOPHARMACOLOGY 2022; 299:115684. [PMID: 36058480 DOI: 10.1016/j.jep.2022.115684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/15/2022] [Accepted: 08/27/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The classic traditional Chinese compound Naoluoxintong (NLXT) has been proven an effective remedy for ischemic stroke (IS). The protective effect of NLXT on neural stem cells (NSCs), however, remains unclear. AIM OF THE STUDY To investigate the protective effect of NLXT on NSCs in rats with middle cerebral artery occlusion (MCAO) and the effect of Nestin expression in vivo. MATERIALS AND METHODS Sprague-Dawley (SD) rats were randomly divided into three groups: the sham-operated group, the MCAO model group and the NLXT group. The MCAO model in rats was established by modified Longa wire embolization method. The sham-operated group, the model group and the NLXT groups were divided into three subgroups according to the sampling time points of 1 d, 3 d and 7 d after successful model-making. Immunofluorescence staining, including bromodeoxyuridine (BrdU)/glial fibrillary acidic protein (GFAP), β-tubulinIII/GFAP, BrdU/doublecortin (DCX) and BrdU/neuronal nuclei (NeuN), was used to detect the proliferation and survival of NSCs in the hippocampal after drug administration. Protein expression of Nestin, DCX, GFAP and NeuN in the hippocampal was detected by Western blot (WB). RESULTS Immunofluorescence experiment of Nestin labeled: on the first day, a few Nestin-positive cells were found in the hippocampal DG area. Afterwards, the number of Nestin-labeled positive cells in the model group increased, while the number of cells in the sham group did not fluctuate significantly. The number of positive cells in each administration group increased more than that in the model and normal group. β-tubulin III/GFAP double-labeled: a small amount of double labeled cells was expressed in the normal group, and the number subsequently fluctuated little. In the model group, β-tubulin III/GFAP positive cells increased initially after acute ischemia, and gradually decreased afterwards. In the NLXT-treated group, β-Tubulin III positive cells were significantly increased on day 1, 3 and 7, while GFAP positive cells had little change. BrdU/DCX double-labeled: initially, a small number of BrdU/DCX-labeled positive cells were observed in the normal group and the model group, but there was no increasing trend over time. The positive cells in the NLXT group increased over time, and those in the seven-day group were significantly higher than those in the one-day and three-day groups. BrdU/NEUN double-labeled: in the normal group, BrdU/NEUN positive cells were enriched and distributed regularly. The number of positive cells in the model group was small and decreased gradually with time, and the decrease was most obvious on the third day. The number of positive cells in the NLXT group was significantly higher than that in the model group, and the number of positive cells in the seven-day group was significantly higher than that in the one-day and three-day groups. WB results reflected those three proteins, Nestin, NeuN and DCX, showed an increase in expression, except GFAP, which showed a decreasing trend. CONCLUSIONS Preliminarily, NLXT can promote the migration and differentiation of NSCs. It may have a protective effect on the brain by promoting repair of brain tissue damage through upregulation of Nestin after IS.
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Affiliation(s)
- Lu Hong
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China
| | - Huihui Jiang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China
| | - Mingming Liu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China
| | - Guodong Zhao
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China
| | - Xiaoqian Shi
- Department of Pharmacy, Huaibei People's Hospital, Hefei, Anhui, 235000, China
| | - Hui Tan
- Key Laboratory of Xin'an Medicine, Ministry of Education, Hefei, Anhui, 230012, China; School of Traditional Chinese Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China
| | - Daiyin Peng
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui, 230012, China
| | - Lei Wang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui, 230012, China
| | - Weidong Chen
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui, 230012, China
| | - Ling He
- Key Laboratory of Xin'an Medicine, Ministry of Education, Hefei, Anhui, 230012, China; School of Traditional Chinese Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China.
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Chrishtop V, Nikonorova V, Gutsalova A, Rumyantseva T, Dukhinova M, Salmina А. Systematic comparison of basic animal models of cerebral hypoperfusion. Tissue Cell 2022; 75:101715. [DOI: 10.1016/j.tice.2021.101715] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 12/12/2021] [Accepted: 12/14/2021] [Indexed: 02/07/2023]
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Khaksar S, Bigdeli M, Samiee A, Shirazi-zand Z. Antioxidant and Anti-apoptotic Effects of Cannabidiol in Model of Ischemic Stroke in Rats. Brain Res Bull 2022; 180:118-130. [DOI: 10.1016/j.brainresbull.2022.01.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 11/27/2021] [Accepted: 01/05/2022] [Indexed: 12/11/2022]
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Kaushik P, Ali M, Salman M, Tabassum H, Parvez S. Harnessing the mitochondrial integrity for neuroprotection: Therapeutic role of piperine against experimental ischemic stroke. Neurochem Int 2021; 149:105138. [PMID: 34284077 DOI: 10.1016/j.neuint.2021.105138] [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: 03/16/2021] [Revised: 07/10/2021] [Accepted: 07/12/2021] [Indexed: 01/13/2023]
Abstract
Ischemic stroke (IS) is a rapidly increasing global burden and is associated with severe neurological decline and mortality. There is urgent requirement of the efforts, aimed to identify therapeutic strategies that are effective in clinic to promote significant recovery from IS. Studies have shown that mitochondria mediated neuroprotection can be a competent target against ischemic damage. Therefore, we examined whether mitochondrial impairment is regulated by Piperine (PIP), an alkaloid of Piper Longum, which has neuroprotective activity against ischemic brain injury. In this study, transient middle cerebral artery occlusion (tMCAO) surgery was performed on male Wistar rats for 90 min followed by 22.5 h of reperfusion for mimicking the IS condition. This study consisted of three groups: sham, tMCAO and tMCAO + PIP (10 mg/kg b.wt., p.o/day for 15 days), and studied for behavioral tests, infarct volume, brain pathological changes, mitochondrial dysfunction, inflammation alongwith cell survival status. PIP pre-treatment showed reduction in neurological alterations and infarct volume. In addition, PIP pre-treatment suppressed the mitochondrial dysfunction and might have anti-apoptotic potential by preventing Cytochrome c (Cyt c) release from mitochondria to cytoplasm and caspase 3 activation. It also regulates pro-apoptotic, Bax and anti-apoptotic, Bcl-2 proteins accompanied by glial fibrillary acidic protein (GFAP) positive cells in cortex region. Quantitative Reverse transcription-polymerase chain reaction (qRT-PCR) results also showed that PIP reduced the expression of pro-inflammatory protein, interleukin-1 β (IL-1β) and enhanced cell survival by restoring the activity of brain derived neurotrophic factor (BDNF) and its transcription protein, cAMP response element binding protein (CREB). Taken together, PIP reduced the mitochondrial dysfunction, neurological impairment, and enhanced neuronal survival. In conclusion, our findings reinforce PIP as an effective neuroprotective agent and provide important evidence about its role as a potential target to serve as a promising therapy for treatment of IS.
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Affiliation(s)
- Pooja Kaushik
- Department of Medical Elementology and Toxicology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, 110062, India
| | - Mubashshir Ali
- Department of Medical Elementology and Toxicology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, 110062, India
| | - Mohd Salman
- Department of Medical Elementology and Toxicology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, 110062, India
| | - Heena Tabassum
- Division of Basic Medical Sciences, Indian Council of Medical Research, Ministry of Health and Family Welfare, Government of India, V. Ramalingaswamy Bhawan, New Delhi, 110029, India
| | - Suhel Parvez
- Department of Medical Elementology and Toxicology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, 110062, India.
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Deng L, Guo Y, Liu J, Wang X, Chen S, Wang Q, Rao J, Wang Y, Zuo T, Hu Q, Zhao X, Dong Z. miR-671-5p Attenuates Neuroinflammation via Suppressing NF-κB Expression in an Acute Ischemic Stroke Model. Neurochem Res 2021; 46:1801-1813. [PMID: 33871800 DOI: 10.1007/s11064-021-03321-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 03/31/2021] [Accepted: 04/02/2021] [Indexed: 12/15/2022]
Abstract
This study was designed to investigate the role of miR-671-5p in in vitro and in vivo models of ischemic stroke (IS). Middle cerebral artery occlusion and reperfusion (MCAO/R) in C57BL/6 mice as well as oxygen-glucose deprivation and reoxygenation (OGD/R) in a mouse hippocampal HT22 neuron line were used as in vivo and in vitro models of IS injury, respectively. miR-671-5p agomir, miR-671-5p antagomir, pcDNA3.1-NF-κB, and negative controls were transfected into cells using riboFECT CP reagent. miR-671-5p agomir, pcDNA3.1-NF-κB, and negative vectors were administered into MCAO/R mice via intracerebroventricular injection. The results showed that miR-671-5p was significantly downregulated and that miR-671-5p agomir alleviated injury and neuroinflammation induced by ischemic reperfusion. A dual-luciferase reporter assay confirmed that NF-κB is a direct target of miR-671-5p. Reverse experiments showed that miR-671-5p agomir reduced neuroinflammation via suppression of NF-κB expression in both in vitro and in vivo models of IS. Our data suggest that miR-671-5p may be a viable therapeutic target for diminishing neuroinflammation in patients with IS.
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Affiliation(s)
- Ling Deng
- College of Pharmacology, The Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, 400016, China
- Library, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Yi Guo
- Department of Radiology, Chongqing University Central Hospital, Chongqing, 400014, China
| | - Jingdong Liu
- College of Pharmacology, The Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, 400016, China
| | - Xuan Wang
- College of Pharmacology, The Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, 400016, China
| | - Sha Chen
- College of Pharmacology, The Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, 400016, China
| | - Qian Wang
- College of Pharmacology, The Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, 400016, China
| | - Jianyan Rao
- College of Pharmacology, The Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, 400016, China
| | - Yuchun Wang
- College of Pharmacology, The Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, 400016, China
| | - Tianrui Zuo
- College of Pharmacology, The Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, 400016, China
| | - Qingwen Hu
- College of Pharmacology, The Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, 400016, China
| | - Xiahong Zhao
- College of Pharmacology, The Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, 400016, China
| | - Zhi Dong
- College of Pharmacology, The Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, 400016, China.
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Furtado ABV, Gonçalves DF, Hartmann DD, Courtes AA, Cassol G, Nunez-Figueredo Y, Argolo DS, do Nascimento RP, Costa SL, da Silva VDA, Royes LFF, Soares FAA. JM-20 Treatment After Mild Traumatic Brain Injury Reduces Glial Cell Pro-inflammatory Signaling and Behavioral and Cognitive Deficits by Increasing Neurotrophin Expression. Mol Neurobiol 2021; 58:4615-4627. [PMID: 34148214 DOI: 10.1007/s12035-021-02436-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 05/18/2021] [Indexed: 12/12/2022]
Abstract
Traumatic brain injury (TBI) is considered a public health problem and is often related to motor and cognitive disabilities, besides behavioral and emotional changes that may remain for the rest of the subject's life. Resident astrocytes and microglia are the first cell types to start the inflammatory cascades following TBI. It is widely known that continuous or excessive neuroinflammation may trigger many neuropathologies. Despite the large numbers of TBI cases, there is no effective pharmacological treatment available. This study aimed to investigate the effects of the new hybrid molecule 3-ethoxycarbonyl-2-methyl-4-(2-nitrophenyl)-4,11-dihydro1H-pyrido[2,3-b][1,5]benzodiazepine (JM-20) on TBI outcomes. Male Wistar rats were submitted to a weight drop model of mild TBI and treated with a single dose of JM-20 (8 mg/kg). Twenty-four hours after TBI, JM-20-treated animals showed improvements on locomotor and exploratory activities, and short-term memory deficits induced by TBI improved as well. Brain edema was present in TBI animals and the JM-20 treatment was able to prevent this change. JM-20 was also able to attenuate neuroinflammation cascades by preventing glial cells-microglia and astrocytes-from exacerbated activation, consequently reducing pro-inflammatory cytokine levels (TNF-α and IL-1β). BDNF mRNA level was decreased 24 h after TBI because of neuroinflammation cascades; however, JM-20 restored the levels. JM-20 also increased GDNF and NGF levels. These results support the JM-20 neuroprotective role to treat mild TBI by reducing the initial damage and limiting long-term secondary degeneration after TBI.
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Affiliation(s)
- Andrezza Bond Vieira Furtado
- Centro de Ciências Naturais E Exatas, Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Debora Farina Gonçalves
- Centro de Ciências Naturais E Exatas, Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Diane Duarte Hartmann
- Centro de Ciências Naturais E Exatas, Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.,Departamento de fisioterapia, Universidade Regional do Noroeste do Estado do Rio Grande do Sul., Ijuí, RS, Brazil
| | - Aline Alves Courtes
- Centro de Ciências Naturais E Exatas, Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Gustavo Cassol
- Laboratório de Bioquímica Do Exercício, Centro de Educação Física E Desportos, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | | | - Deivison Silva Argolo
- Laboratório de Neuroquímica E Biologia Celular, Departamento de Bioquímica E Biofísica, Universidade Federal Bahia, Salvador, BA, Brazil
| | - Ravena Pereira do Nascimento
- Laboratório de Neuroquímica E Biologia Celular, Departamento de Bioquímica E Biofísica, Universidade Federal Bahia, Salvador, BA, Brazil
| | - Silvia Lima Costa
- Laboratório de Neuroquímica E Biologia Celular, Departamento de Bioquímica E Biofísica, Universidade Federal Bahia, Salvador, BA, Brazil
| | - Victor Diogenes Amaral da Silva
- Laboratório de Neuroquímica E Biologia Celular, Departamento de Bioquímica E Biofísica, Universidade Federal Bahia, Salvador, BA, Brazil
| | - Luiz Fernando Freire Royes
- Centro de Ciências Naturais E Exatas, Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Félix Alexandre Antunes Soares
- Centro de Ciências Naturais E Exatas, Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil. .,Departamento de Bioquímica E Biologia Molecular, CCNE, Universidade Federal de Santa Maria, Santa Maria, RS, 97105-900, Brazil.
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12
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Xu H, Wang Y, Luo Y. OTULIN is a new target of EA treatment in the alleviation of brain injury and glial cell activation via suppression of the NF-κB signalling pathway in acute ischaemic stroke rats. Mol Med 2021; 27:37. [PMID: 33836646 PMCID: PMC8035756 DOI: 10.1186/s10020-021-00297-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 03/26/2021] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE Ovarian tumour domain deubiquitinase with linear linkage specificity (OTULIN) is a potent negative regulator of the nuclear factor-κB (NF-κB) signalling pathway, and it plays a strong neuroprotective role following acute ischemic stroke. Electroacupuncture (EA) is an effective adjuvant treatment for reducing brain injury and neuroinflammation via the inhibition of NF-κB p65 nuclear translocation, but the underlying mechanism is not clear. The present study investigated whether OTULIN was necessary for EA to mitigate brain injury and glial cell activation in a transient middle cerebral artery occlusion (tMCAO) model in rats. METHODS An acute ischaemic stroke model was established via tMCAO surgery in Sprague-Dawley (SD) rats. EA was performed once daily at "Baihui (GV 20)", "Hegu (LI 4)", and "Taichong (LR 3)" acupoints. The effect of EA on the spatiotemporal expression of OTULIN in the ischaemic penumbra of the cerebral cortex was detected within 7 days after reperfusion. The effects of OTULIN gene silencing on EA neurological deficits, cerebral infarct volume, neuronal damage, the activation of microglia and astrocytes, the contents of tumour necrosis factor alpha (TNF-α), interleukin-1 beta (IL-1β) and interleukin-6 (IL-6), and the expression of p-IκBa, IκBa and nucleus/cytoplasm NF-κB p65 protein were assessed. RESULTS EA treatment increased endogenous OTULIN expression, which peaked at 48 h. Enhanced OTULIN was primarily located in neurons, but a small amount of OTULIN was detected in microglia. OTULIN silencing obviously reversed EA neuroprotection, which was demonstrated by worsened neurobehavioural performance, cerebral infarct volume and neuronal injury. The inhibitory effect of EA on the NF-κB pathway was also attenuated by enhanced IκBα phosphorylation and NF-κB p65 nuclear translocation. EA partially inhibited the transformation of microglia and astrocytes from resting states to activated states and reduced the secretion of TNF-α, IL-1β and IL-6. However, these preventive effects were reversed after the silencing of OTULIN expression. CONCLUSIONS OTULIN provides a new potential therapeutic target for EA to alleviate acute ischaemic stroke-induced brain injury and the activation of glial cells, which are related to suppression of the NF-κB signalling pathway.
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Affiliation(s)
- Hongbei Xu
- Department of Neurology, The Affiliated Hospital of Guizhou Medical University, Guizhou, 550004, China
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - You Wang
- Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Yong Luo
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
- Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
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Fonseca-Fonseca LA, da Silva VDA, Wong-Guerra M, Ramírez-Sánchez J, Yaquis ASP, Ochoa-Rodríguez E, Verdecia-Reyes Y, de Araújo FM, Santana RC, Outeiro TF, Costa SL, Núñez-Figueredo Y. JM-20 protects against 6-hydroxydopamine-induced neurotoxicity in models of Parkinson's disease: Mitochondrial protection and antioxidant properties. Neurotoxicology 2020; 82:89-98. [PMID: 33232743 DOI: 10.1016/j.neuro.2020.11.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 11/13/2020] [Accepted: 11/16/2020] [Indexed: 12/20/2022]
Abstract
We have previously shown that JM-20, a new chemical entity consisting of 1,5-benzodiazepine fused to a dihydropyridine moiety, protects against rotenone-induced neurotoxicity in an experimental model of Parkinson's disease (PD). The aim of this study was to investigate the effect of a novel hybrid molecule, named JM-20, in in vitro and in vivo models of PD induced by 6-hydroxydopamine (6-OHDA). PC-12 cells were exposed to 6-OHDA and treated with JM-20. Protection against mitochondrial damage induced by 6-OHDA was also investigated using isolated rat brain mitochondria. We found that JM-20 protected PC-12 cells against cytotoxicity induced by 6-OHDA and inhibited hydrogen peroxide generation, mitochondrial swelling and membrane potential dissipation. For in vivo experiments, adult male Wistar rats were lesioned in the substantia nigra pars compacta (SNpc) by 6-OHDA administration. JM-20 was orally administered (10, 20 or 40 mg/kg), intragastric via gavage, 24 h after surgery and daily for seven days. Treatment with JM-20 significantly reduced the percentage of motor asymmetry and increased vertical exploration. It improved the redox state of the SNpc and the striatal tissue of these animals. Also, JM-20 reduced glial fibrillary acidic protein overexpression and increased tyrosine hydroxylase-positive cell number, both in SNpc. Altogether, these results demonstrate that JM-20 is a potential neuroprotective agent against 6-OHDA-induced damage in both in vitro and in vivo models. The mechanism underlying JM-20 neuroprotection against 6-OHDA appears to be associated with the control of oxidative injury and mitochondrial impairment.
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Affiliation(s)
- Luis Arturo Fonseca-Fonseca
- Centro de Investigación y Desarrollo de Medicamentos (CIDEM), Ave 26, No. 1605 Boyeros y Puentes Grandes, CP 10600, La Habana, Cuba
| | - Víctor Diogenes Amaral da Silva
- Laboratório de Neuroquímica e Biologia Celular, Instituto de Ciências da Saúde, Universidade Federal da Bahia (UFBA), Av. Reitor Miguel Calmon s/n, Vale do Canela, CEP 41100-100, Salvador, Bahia, Brazil
| | - Maylin Wong-Guerra
- Centro de Investigación y Desarrollo de Medicamentos (CIDEM), Ave 26, No. 1605 Boyeros y Puentes Grandes, CP 10600, La Habana, Cuba
| | - Jeney Ramírez-Sánchez
- Centro de Investigación y Desarrollo de Medicamentos (CIDEM), Ave 26, No. 1605 Boyeros y Puentes Grandes, CP 10600, La Habana, Cuba
| | - Alejandro Saúl Padrón Yaquis
- Centro de Investigación y Desarrollo de Medicamentos (CIDEM), Ave 26, No. 1605 Boyeros y Puentes Grandes, CP 10600, La Habana, Cuba
| | - Estael Ochoa-Rodríguez
- Laboratorio de Síntesis Orgánica de La Facultad de Química de La Universidad de La Habana (Zapata s/n entre G y Carlitos Aguirre, Vedado Plaza de la Revolución, CP 10400, La Habana, Cuba
| | - Yamila Verdecia-Reyes
- Laboratorio de Síntesis Orgánica de La Facultad de Química de La Universidad de La Habana (Zapata s/n entre G y Carlitos Aguirre, Vedado Plaza de la Revolución, CP 10400, La Habana, Cuba
| | - Fillipe Mendes de Araújo
- Laboratório de Neuroquímica e Biologia Celular, Instituto de Ciências da Saúde, Universidade Federal da Bahia (UFBA), Av. Reitor Miguel Calmon s/n, Vale do Canela, CEP 41100-100, Salvador, Bahia, Brazil
| | - Rejane Conceição Santana
- Laboratório de Neurociências, Instituto de Ciências da Saúde, Universidade Federal da Bahia (UFBA), Av. Reitor Miguel Calmon s/n, Vale do Canela, CEP 41100-100, Salvador, Bahia, Brazil
| | - Tiago Fleming Outeiro
- Department of Experimental Neurodegeneration, Center for Biostructural Imaging of Neurodegeneration, University Medical Center Gottingen, Göttingen, Germany; Max Planck Institute for Experimental Medicine, Goettingen, Germany; Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Framlington Place, Newcastle Upon Tyne, NE2 4HH, UK
| | - Silvia Lima Costa
- Laboratório de Neuroquímica e Biologia Celular, Instituto de Ciências da Saúde, Universidade Federal da Bahia (UFBA), Av. Reitor Miguel Calmon s/n, Vale do Canela, CEP 41100-100, Salvador, Bahia, Brazil.
| | - Yanier Núñez-Figueredo
- Centro de Investigación y Desarrollo de Medicamentos (CIDEM), Ave 26, No. 1605 Boyeros y Puentes Grandes, CP 10600, La Habana, Cuba.
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Garrido-Suárez BB, Garrido G, Castro-Labrada M, Merino N, Valdés O, Pardo Z, Ochoa-Rodríguez E, Verdecia-Reyes Y, Delgado-Hernández R, Godoy-Figueiredo J, Ferreira SH. Anti-hypernociceptive and anti-inflammatory effects of JM-20: A novel hybrid neuroprotective compound. Brain Res Bull 2020; 165:185-197. [PMID: 33096198 DOI: 10.1016/j.brainresbull.2020.10.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 10/05/2020] [Accepted: 10/06/2020] [Indexed: 12/18/2022]
Abstract
The present study examines the possible effect of the novel hybrid molecule JM-20 (3-ethoxycarbonyl-2-methyl-4-(2-nitrophenyl)-411-dihydro-1H-pyrido[2,3-b] [1,5] benzodiazepine) on pain-related behaviours in a persistent pain model (5% formalin test) and in the neutrophil migration events during the inflammatory process. It further introduces JM-20 in a chronic constriction injury (CCI) model to clarify the possible subjacent mechanisms with its consequent clinical relevance. A single administration of JM-20 (20 or 40 mg/kg, per os [p.o.]) decreased licking/biting exclusively in the tonic phase of the formalin test in a GABA/benzodiazepine (BZD) receptor antagonist flumazenil-sensitive manner. JM-20 reduced in vivo neutrophil migration, rolling and adhesion to the endothelium induced by intraperitoneal administration of carrageenan in mice. In addition, plasma extravasation and tumour necrosis factor alpha production in the peritoneal fluid were decreased. Treatment with JM-20 (20 mg/kg, p.o.) for 7 days after CCI reduced mechanical hypersensitivity in a NG-monomethyl-l-arginine (L-NMMA)/methylene blue/glibenclamide-sensitive manner. Histopathological signs of Wallerian degeneration (WD) of the sciatic nerve were also attenuated, as well as interleukin-1 beta release in the spinal cord. The nitrate/nitrite concentration was increased centrally and did not show differences at the peripheral nerve level. The findings of this study suggest JM-20 can decrease persistent pain. A transient activity of its BDZ portion on nociceptive pathways mediated by GABA/BDZ receptors in association with its anti-inflammatory properties could be at least partially involved in this effect. JM-20 decreased CCI-induced mechanical hypersensitivity via the l-arginine/nitric oxide (NO)/cyclic GMP-sensitive ATP-sensitive potassium channel pathway. Its neuroprotective ability by preventing WD could be implicated in its anti-neuropathic mechanisms.
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Affiliation(s)
- Bárbara B Garrido-Suárez
- Centro de Investigación y Desarrollo de Medicamentos, Ave 26, No. 1605 Boyeros y Puentes Grandes, CP, 10600, La Habana, Cuba.
| | - Gabino Garrido
- Departamento de Ciencias Farmacéuticas, Facultad de Ciencias, Edificio Ñ3, Universidad Católica del Norte, Angamos, 0610, Antofagasta, Chile.
| | - Marian Castro-Labrada
- Centro de Investigación y Desarrollo de Medicamentos, Ave 26, No. 1605 Boyeros y Puentes Grandes, CP, 10600, La Habana, Cuba
| | - Nelson Merino
- Centro de Investigación y Desarrollo de Medicamentos, Ave 26, No. 1605 Boyeros y Puentes Grandes, CP, 10600, La Habana, Cuba
| | - Odalys Valdés
- Centro de Investigación y Desarrollo de Medicamentos, Ave 26, No. 1605 Boyeros y Puentes Grandes, CP, 10600, La Habana, Cuba
| | - Zenia Pardo
- Centro de Investigación y Desarrollo de Medicamentos, Ave 26, No. 1605 Boyeros y Puentes Grandes, CP, 10600, La Habana, Cuba
| | - Estael Ochoa-Rodríguez
- Laboratorio de Síntesis Orgánica de La Facultad de Química de La Universidad de La Habana, Zapata s/n entre G y Carlitos Aguirre, Vedado Plaza de la Revolución, CP, 10400, La Habana, Cuba
| | - Yamila Verdecia-Reyes
- Laboratorio de Síntesis Orgánica de La Facultad de Química de La Universidad de La Habana, Zapata s/n entre G y Carlitos Aguirre, Vedado Plaza de la Revolución, CP, 10400, La Habana, Cuba
| | - René Delgado-Hernández
- Centro de Investigación y Desarrollo de Medicamentos, Ave 26, No. 1605 Boyeros y Puentes Grandes, CP, 10600, La Habana, Cuba
| | - Jozi Godoy-Figueiredo
- Department of Pharmacology, Faculty of Medicine of Ribeirão Preto University of São Paulo, Avenida Bandeirantes, 3900, 14049-900, Ribeirão Preto, SP, Brazil
| | - Sergio H Ferreira
- Department of Pharmacology, Faculty of Medicine of Ribeirão Preto University of São Paulo, Avenida Bandeirantes, 3900, 14049-900, Ribeirão Preto, SP, Brazil
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15
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Clematichinenoside Facilitates Recovery of Neurological and Motor Function in Rats after Cerebral Ischemic Injury through Inhibiting Notch/NF-κB Pathway. J Stroke Cerebrovasc Dis 2019; 28:104288. [DOI: 10.1016/j.jstrokecerebrovasdis.2019.07.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 06/18/2019] [Accepted: 07/07/2019] [Indexed: 11/23/2022] Open
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16
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HMGB1-triggered inflammation inhibition of notoginseng leaf triterpenes against cerebral ischemia and reperfusion injury via MAPK and NF-κB signaling pathways. Biomolecules 2019; 9:biom9100512. [PMID: 31547018 PMCID: PMC6843331 DOI: 10.3390/biom9100512] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 09/18/2019] [Accepted: 09/18/2019] [Indexed: 01/01/2023] Open
Abstract
Ischemic stroke is a clinically common cerebrovascular disease whose main risks include necrosis, apoptosis and cerebral infarction, all caused by cerebral ischemia and reperfusion (I/R) injury. This process has particular significance for the treatment of stroke patients. Notoginseng leaf triterpenes (PNGL), as a valuable medicine, have been discovered to have neuroprotective effects. However, it was not confirmed that whether PNGL may possess neuroprotective effects against cerebral I/R injury. To explore the neuroprotective effects of PNGL and their underlying mechanisms, a middle cerebral artery occlusion/reperfusion (MCAO/R) model was established. In vivo results suggested that in MCAO/R model rats, PNGL pretreatment (73.0, 146, 292 mg/kg) remarkably decreased infarct volume, reduced brain water content, and improved neurological functions; moreover, PNGL (73.0, 146, 292 mg/kg) significantly alleviated blood-brain barrier (BBB) disruption and inhibited neuronal apoptosis and neuronal loss caused by cerebral I/R injury, while PNGL with a different concertation (146, 292 mg/kg) significantly reduced the concentrations of IL-6, TNF-α, IL-1 β, and HMGB1 in serums in a dose-dependent way, which indicated that inflammation inhibition could be involved in the neuroprotective effects of PNGL. The immunofluorescence and western blot analysis showed PNGL decreased HMGB1 expression, suppressed the HMGB1-triggered inflammation, and inhibited microglia activation (IBA1) in hippocampus and cortex, thus dose-dependently downregulating inflammatory cytokines including VCAM-1, MMP-9, MMP-2, and ICAM-1 concentrations in ischemic brains. Interestingly, PNGL administration (146 mg/kg) significantly downregulated the levels of p-P44/42, p-JNK1/2 and p-P38 MAPK, and also inhibited expressions of the total NF-κB and phosphorylated NF-κB in ischemic brains, which was the downstream pathway triggered by HMGB1. All of these results indicated that the protective effects of PNGL against cerebral I/R injury could be associated with inhibiting HMGB1-triggered inflammation, suppressing the activation of MAPKs and NF-κB, and thus improved cerebral I/R-induced neuropathological changes. This study may offer insight into discovering new active compounds for the treatment of ischemic stroke.
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Zhao H, Li G, Wang R, Tao Z, Zhang S, Li F, Han Z, Li L, Liu P, Luo Y. MiR‐424 prevents astrogliosis after cerebral ischemia/reperfusion in elderly mice by enhancing repressive H3K27me3 via NFIA/DNMT1 signaling. FEBS J 2019; 286:4926-4936. [PMID: 31365782 DOI: 10.1111/febs.15029] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 06/17/2019] [Accepted: 07/29/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Haiping Zhao
- Institute of Cerebrovascular Disease Research and Department of Neurology Xuanwu Hospital of Capital Medical University Beijing China
- Beijing Geriatric Medical Research Center Beijing Key Laboratory of Translational Medicine for Cerebrovascular Diseases China
| | - Guangwen Li
- Institute of Cerebrovascular Disease Research and Department of Neurology Xuanwu Hospital of Capital Medical University Beijing China
| | - Rongliang Wang
- Institute of Cerebrovascular Disease Research and Department of Neurology Xuanwu Hospital of Capital Medical University Beijing China
- Beijing Geriatric Medical Research Center Beijing Key Laboratory of Translational Medicine for Cerebrovascular Diseases China
| | - Zhen Tao
- Institute of Cerebrovascular Disease Research and Department of Neurology Xuanwu Hospital of Capital Medical University Beijing China
- Beijing Geriatric Medical Research Center Beijing Key Laboratory of Translational Medicine for Cerebrovascular Diseases China
| | - Sijia Zhang
- Institute of Cerebrovascular Disease Research and Department of Neurology Xuanwu Hospital of Capital Medical University Beijing China
| | - Fangfang Li
- Institute of Cerebrovascular Disease Research and Department of Neurology Xuanwu Hospital of Capital Medical University Beijing China
| | - Ziping Han
- Institute of Cerebrovascular Disease Research and Department of Neurology Xuanwu Hospital of Capital Medical University Beijing China
| | - Lingzhi Li
- Institute of Cerebrovascular Disease Research and Department of Neurology Xuanwu Hospital of Capital Medical University Beijing China
| | - Ping Liu
- Institute of Cerebrovascular Disease Research and Department of Neurology Xuanwu Hospital of Capital Medical University Beijing China
| | - Yumin Luo
- Institute of Cerebrovascular Disease Research and Department of Neurology Xuanwu Hospital of Capital Medical University Beijing China
- Beijing Geriatric Medical Research Center Beijing Key Laboratory of Translational Medicine for Cerebrovascular Diseases China
- Beijing Institute for Brain Disorders China
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18
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Apaijai N, Moisescu DM, Palee S, McSweeney CM, Saiyasit N, Maneechote C, Boonnag C, Chattipakorn N, Chattipakorn SC. Pretreatment With PCSK9 Inhibitor Protects the Brain Against Cardiac Ischemia/Reperfusion Injury Through a Reduction of Neuronal Inflammation and Amyloid Beta Aggregation. J Am Heart Assoc 2019; 8:e010838. [PMID: 30636486 PMCID: PMC6497363 DOI: 10.1161/jaha.118.010838] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Accepted: 12/12/2018] [Indexed: 12/16/2022]
Abstract
Background Cardiac ischemic/reperfusion (I/R) injury leads to brain damage. A new antihyperlipidemic drug is aimed at inhibiting PCSK 9 (proprotein convertase subtilisin/kexin type 9), a molecule first identified in a neuronal apoptosis paradigm. Thus, the PCSK 9 inhibitor ( PCSK 9i) may play a role in neuronal recovery following cardiac I/R insults. We hypothesize that PCSK 9i attenuates brain damage caused by cardiac I/R via diminishing microglial/astrocytic hyperactivation, β-amyloid aggregation, and loss of dendritic spine. Methods and Results Adult male rats were divided into 7 groups: (1) control (n=4); (2) PCSK 9i without cardiac I/R (n=4); (3) sham (n=4); and cardiac I/R (n=40). Cardiac I/R rats were divided into 4 subgroups (n=10/subgroup): (1) vehicle; (2) PCSK 9i (10 μg/kg, IV) before ischemia; (3) PCSK 9i during ischemia; and (4) PCSK 9i at the onset of reperfusion. At the end of cardiac I/R protocol, brains were removed to determine microglial and astrocytic activities, β-amyloid aggravation, and dendritic spine density. The cardiac I/R led to the activation of the brain's innate immunity resulting in increasing Iba1+ microglia, GFAP + astrocytes, and CD 11b+/ CD 45+high cell numbers. However, CD 11b+/ CD 45+low cell numbers were decreased following cardiac I/R. In addition, cardiac I/R led to reduced dendritic spine density, and increased β-amyloid aggregation. Only the administration of PCSK 9i before ischemia effectively attenuated these deleterious effects on the brain following cardiac I/R. PCSK 9i administration under the physiologic condition did not affect the aforementioned parameters. Conclusions Cardiac I/R injury activated microglial activity in the brain, leading to brain damage. Only the pretreatment with PCSK 9i prevented dendritic spine loss via reduction of microglial activation and Aβ aggregation.
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Affiliation(s)
- Nattayaporn Apaijai
- Neurophysiology UnitCardiac Electrophysiology Research and Training CenterFaculty of MedicineChiang Mai UniversityChiang MaiThailand
- Center of Excellence in Cardiac Electrophysiology ResearchChiang Mai UniversityChiang MaiThailand
| | - Dalila Monica Moisescu
- Neurophysiology UnitCardiac Electrophysiology Research and Training CenterFaculty of MedicineChiang Mai UniversityChiang MaiThailand
- Center of Excellence in Cardiac Electrophysiology ResearchChiang Mai UniversityChiang MaiThailand
| | - Siripong Palee
- Neurophysiology UnitCardiac Electrophysiology Research and Training CenterFaculty of MedicineChiang Mai UniversityChiang MaiThailand
- Center of Excellence in Cardiac Electrophysiology ResearchChiang Mai UniversityChiang MaiThailand
| | - Christian Mervyn McSweeney
- Neurophysiology UnitCardiac Electrophysiology Research and Training CenterFaculty of MedicineChiang Mai UniversityChiang MaiThailand
- Center of Excellence in Cardiac Electrophysiology ResearchChiang Mai UniversityChiang MaiThailand
| | - Napatsorn Saiyasit
- Neurophysiology UnitCardiac Electrophysiology Research and Training CenterFaculty of MedicineChiang Mai UniversityChiang MaiThailand
- Center of Excellence in Cardiac Electrophysiology ResearchChiang Mai UniversityChiang MaiThailand
- Cardiac Electrophysiology UnitDepartment of PhysiologyFaculty of MedicineChiang Mai UniversityChiang MaiThailand
| | - Chayodom Maneechote
- Neurophysiology UnitCardiac Electrophysiology Research and Training CenterFaculty of MedicineChiang Mai UniversityChiang MaiThailand
- Center of Excellence in Cardiac Electrophysiology ResearchChiang Mai UniversityChiang MaiThailand
- Cardiac Electrophysiology UnitDepartment of PhysiologyFaculty of MedicineChiang Mai UniversityChiang MaiThailand
| | - Chiraphat Boonnag
- Neurophysiology UnitCardiac Electrophysiology Research and Training CenterFaculty of MedicineChiang Mai UniversityChiang MaiThailand
- Center of Excellence in Cardiac Electrophysiology ResearchChiang Mai UniversityChiang MaiThailand
| | - Nipon Chattipakorn
- Neurophysiology UnitCardiac Electrophysiology Research and Training CenterFaculty of MedicineChiang Mai UniversityChiang MaiThailand
- Center of Excellence in Cardiac Electrophysiology ResearchChiang Mai UniversityChiang MaiThailand
- Cardiac Electrophysiology UnitDepartment of PhysiologyFaculty of MedicineChiang Mai UniversityChiang MaiThailand
| | - Siriporn C. Chattipakorn
- Neurophysiology UnitCardiac Electrophysiology Research and Training CenterFaculty of MedicineChiang Mai UniversityChiang MaiThailand
- Center of Excellence in Cardiac Electrophysiology ResearchChiang Mai UniversityChiang MaiThailand
- Department of Oral Biology and Diagnostic SciencesFaculty of DentistryChiang Mai UniversityChiang MaiThailand
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