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Othman R, Aggour A, Elmorsy E, Fawzy MS. Nigella sativa, active principle thymoquinone, alleviates palmitate-induced cytotoxicity, inflammation and bioenergetic disruptions in macrophages: An invitro study model. Toxicon 2024; 244:107754. [PMID: 38761922 DOI: 10.1016/j.toxicon.2024.107754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/08/2024] [Accepted: 05/09/2024] [Indexed: 05/20/2024]
Abstract
Thymoquinone (TQ) is one of the main phytochemical bioactive ingredients in Nigella sativa, with reported immunity-boosting properties. The current study evaluated the anti-inflammatory effect of TQ against inflammation brought on by free fatty acid Palmitate (PA) using macrophages raw 264.7 cell line. Data revealed that TQ significantly improved the viability of basal and PA stimulated Macrophages at concentrations of 50 and 100 μg/mL. Also, TQ significantly reduced nitric oxide and triglyceride levels in PA-stimulated macrophages at concentrations of 50 and 100 μg/mL. The pro-inflammatory cytokines studies revealed that PA significantly increased the release of the cytokines TNF-α, MHGB-1, IL-1β, and IL-6. TQ at concentrations 25, 50, and 100 μg/ml significantly decreases the release of the studied cytokines in PA-stimulated macrophages to variable extents with parallel inhibition to their corresponding gene expression. Bioenergetic assays showed that PA significantly decreased cellular ATP, mitochondrial complexes I and III activities and mitochondrial membrane potential with a subsequent significant increase in lactate production. At the same time, TQ can alleviate the effect of PA on macrophages' bioenergetics parameters to variable extent based on TQ concentration. To conclude, TQ could mitigate palmitate-induced inflammation and cytotoxicity in macrophages by improving macrophage viability and controlling cytokine release with improved PA-induced bioenergetics disruption.
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Affiliation(s)
- Rashad Othman
- Pathology Department, Faculty of Medicine, Northern Border University, Arar, Saudi Arabia
| | - Amal Aggour
- Regional laboratory, Northern Border Health cluster, Arar, Saudi Arabia
| | - Ekramy Elmorsy
- Pathology Department, Faculty of Medicine, Northern Border University, Arar, Saudi Arabia; Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Manal S Fawzy
- Department of Biochemistry, Faculty of Medicine, Northern Border University, Arar 73213, Saudi Arabia; Unit of Medical Research and Postgraduate Studies, Faculty of Medicine, Northern Border University, Arar 73213, Saudi Arabia.
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2
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González-Flores D, Márquez A, Casimiro I. Oxidative Effects in Early Stages of Embryo Development Due to Alcohol Consumption. Int J Mol Sci 2024; 25:4100. [PMID: 38612908 PMCID: PMC11012856 DOI: 10.3390/ijms25074100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 04/01/2024] [Accepted: 04/02/2024] [Indexed: 04/14/2024] Open
Abstract
Alcohol, a widely consumed drug, exerts significant toxic effects on the human organism. This review focuses on its impact during fetal development, when it leads to a spectrum of disorders collectively termed Fetal Alcohol Spectrum Disorders (FASD). Children afflicted by FASD exhibit distinct clinical manifestations, including facial dysmorphism, delayed growth, and neurological and behavioral disorders. These behavioral issues encompass diminished intellectual capacity, memory impairment, and heightened impulsiveness. While the precise mechanisms underlying alcohol-induced fetal damage remain incompletely understood, research indicates a pivotal role for reactive oxygen species (ROS) that are released during alcohol metabolism, inciting inflammation at the cerebral level. Ethanol metabolism amplifies the generation of oxidant molecules, inducing through alterations in enzymatic and non-enzymatic systems responsible for cellular homeostasis. Alcohol consumption disrupts endogenous enzyme activity and fosters lipid peroxidation in consumers, potentially affecting the developing fetus. Addressing this concern, administration of metformin during the prenatal period, corresponding to the third trimester of human pregnancy, emerges as a potential therapeutic intervention for mitigating FASD. This proposed approach holds promise for ameliorating the adverse effects of alcohol exposure on fetal development and warrants further investigation.
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Affiliation(s)
- David González-Flores
- Department of Anatomy, Cell Biology and Zoology, Faculty of Medicine and Health Sciences, University of Extremadura, 06006 Badajoz, Spain
| | - Antonia Márquez
- Department of Anatomy, Cell Biology and Zoology, Faculty of Medicine and Health Sciences, University of Extremadura, 06006 Badajoz, Spain
| | - Ilda Casimiro
- Department of Anatomy, Cell Biology and Zoology, Faculty of Sciences, University of Extremadura, 06006 Badajoz, Spain;
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Seyed Aliyan SM, Roohbakhsh A, Jafari Fakhrabad M, Salmasi Z, Moshiri M, Shahbazi N, Etemad L. Evaluating the Protective Effects of Thymoquinone on Methamphetamine-induced Toxicity in an In Vitro Model Based on Differentiated PC12 Cells. Altern Lab Anim 2024; 52:94-106. [PMID: 38445454 DOI: 10.1177/02611929241237409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
Methamphetamine (Meth) is a highly addictive stimulant. Its potential neurotoxic effects are mediated through various mechanisms, including oxidative stress and the initiation of the apoptotic process. Thymoquinone (TQ), obtained from Nigella sativa seed oil, has extensive antioxidant and anti-apoptotic properties. This study aimed to investigate the potential protective effects of TQ against Meth-induced toxicity by using an in vitro model based on nerve growth factor-differentiated PC12 cells. Cell differentiation was assessed by detecting the presence of a neuronal marker with flow cytometry. The effects of Meth exposure were evaluated in the in vitro neuronal cell-based model via the determination of cell viability (in an MTT assay) and apoptosis (by annexin/propidium iodide staining). The generation of reactive oxygen species (ROS), as well as the levels of glutathione (GSH) and dopamine, were also determined. The model was used to determine the protective effects of 0.5, 1 and 2 μM TQ against Meth-induced toxicity (at 1 mM). The results showed that TQ reduced Meth-induced neurotoxicity, possibly through the inhibition of ROS generation and apoptosis, and by helping to maintain GSH and dopamine levels. Thus, the impact of TQ treatment on Meth-induced neurotoxicity could warrant further investigation.
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Affiliation(s)
| | - Ali Roohbakhsh
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Marzieh Jafari Fakhrabad
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zahar Salmasi
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Moshiri
- Medical Toxicology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Clinical Toxicology, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Niosha Shahbazi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Leila Etemad
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Medical Toxicology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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4
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Ay M, Charli A, Langley M, Jang A, Padhi P, Jin H, Anantharam V, Kalyanaraman B, Kanthasamy A, Kanthasamy AG. Mito-metformin protects against mitochondrial dysfunction and dopaminergic neuronal degeneration by activating upstream PKD1 signaling in cell culture and MitoPark animal models of Parkinson's disease. Front Neurosci 2024; 18:1356703. [PMID: 38449738 PMCID: PMC10915001 DOI: 10.3389/fnins.2024.1356703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 02/07/2024] [Indexed: 03/08/2024] Open
Abstract
Impaired mitochondrial function and biogenesis have strongly been implicated in the pathogenesis of Parkinson's disease (PD). Thus, identifying the key signaling mechanisms regulating mitochondrial biogenesis is crucial to developing new treatment strategies for PD. We previously reported that protein kinase D1 (PKD1) activation protects against neuronal cell death in PD models by regulating mitochondrial biogenesis. To further harness the translational drug discovery potential of targeting PKD1-mediated neuroprotective signaling, we synthesized mito-metformin (Mito-Met), a mitochondria-targeted analog derived from conjugating the anti-diabetic drug metformin with a triphenylphosphonium functional group, and then evaluated the preclinical efficacy of Mito-Met in cell culture and MitoPark animal models of PD. Mito-Met (100-300 nM) significantly activated PKD1 phosphorylation, as well as downstream Akt and AMPKα phosphorylation, more potently than metformin, in N27 dopaminergic neuronal cells. Furthermore, treatment with Mito-Met upregulated the mRNA and protein expression of mitochondrial transcription factor A (TFAM) implying that Mito-Met can promote mitochondrial biogenesis. Interestingly, Mito-Met significantly increased mitochondrial bioenergetics capacity in N27 dopaminergic cells. Mito-Met also reduced mitochondrial fragmentation induced by the Parkinsonian neurotoxicant MPP+ in N27 cells and protected against MPP+-induced TH-positive neurite loss in primary neurons. More importantly, Mito-Met treatment (10 mg/kg, oral gavage for 8 week) significantly improved motor deficits and reduced striatal dopamine depletion in MitoPark mice. Taken together, our results demonstrate that Mito-Met possesses profound neuroprotective effects in both in vitro and in vivo models of PD, suggesting that pharmacological activation of PKD1 signaling could be a novel neuroprotective translational strategy in PD and other related neurocognitive diseases.
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Affiliation(s)
- Muhammet Ay
- Parkinson’s Disorder Research Laboratory, Department of Biomedical Sciences, Iowa Center for Advanced Neurotoxicology, Iowa State University, Ames, IA, United States
| | - Adhithiya Charli
- Parkinson’s Disorder Research Laboratory, Department of Biomedical Sciences, Iowa Center for Advanced Neurotoxicology, Iowa State University, Ames, IA, United States
| | - Monica Langley
- Parkinson’s Disorder Research Laboratory, Department of Biomedical Sciences, Iowa Center for Advanced Neurotoxicology, Iowa State University, Ames, IA, United States
| | - Ahyoung Jang
- Department of Physiology and Pharmacology, Isakson Center for Neurological Disease Research, University of Georgia, Athens, GA, United States
| | - Piyush Padhi
- Department of Physiology and Pharmacology, Isakson Center for Neurological Disease Research, University of Georgia, Athens, GA, United States
| | - Huajun Jin
- Department of Physiology and Pharmacology, Isakson Center for Neurological Disease Research, University of Georgia, Athens, GA, United States
| | - Vellareddy Anantharam
- Department of Physiology and Pharmacology, Isakson Center for Neurological Disease Research, University of Georgia, Athens, GA, United States
| | | | - Arthi Kanthasamy
- Department of Physiology and Pharmacology, Isakson Center for Neurological Disease Research, University of Georgia, Athens, GA, United States
| | - Anumantha G. Kanthasamy
- Parkinson’s Disorder Research Laboratory, Department of Biomedical Sciences, Iowa Center for Advanced Neurotoxicology, Iowa State University, Ames, IA, United States
- Department of Physiology and Pharmacology, Isakson Center for Neurological Disease Research, University of Georgia, Athens, GA, United States
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Sharma P, Kumari A, Singh P, Srivas S, Thakur MK, Hemalatha S. Pyrus pashia fruit extract and its major phytometabolite chrysin prevent hippocampal apoptosis and memory impairment in PTZ-kindled mice. Nutr Neurosci 2023:1-13. [PMID: 37930934 DOI: 10.1080/1028415x.2023.2276575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
OBJECTIVES Epilepsy is a chronic neurological condition with recurrent seizures. One-third of epilepsy patients experience unacceptable side effects from antiepileptic drugs. Pyrus pashia is a deciduous tree from southern Asia. Ethnomedicinally, Malakand tribes use its fruits for epilepsy treatment. Our prior research demonstrated the anticonvulsive properties of ethanolic extract of Pyrus pashia (EPP) and its bioactive compound chrysin in acute seizure tests. This study aims to investigate the impact of EPP and chrysin on cognitive impairment in a PTZ-induced kindling mice model of epilepsy. METHODS Swiss albino male mice were equally divided into four groups. The first group received 0.5% carboxy methyl cellulose dissolved in normal saline while the other three groups were pre-treated with Diazepam (DZP) (1 mg/kg, i.p.), EPP (200 mg/kg, p.o.) and chrysin (5 mg/kg, p.o.). After 30 min, all groups were administered PTZ (35 mg/kg, i.p.) and evaluated for seizure severity, cognitive function, and neuronal apoptosis. Western blot analysis was conducted to analyze the expressions of apoptosis biomarkers and memory-related genes, including cAMP response element-binding protein (CREB) and Brain Derived Neurotrophic Factor (BDNF). RESULTS The therapeutic effects of EPP and Chrysin were comparable to DZP in terms of reducing seizure severity, but unlike DZP, they prevented PTZ-induced memory impairment in experimental animals. Additionally, they increased the levels of BDNF and CREB while reducing apoptotic biomarkers in the hippocampus of experimental animals. CONCLUSIONS Based on the leads offered by this study EPP and its major bioactive constituent, could be developed as the treatment option for epilepsy.
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Affiliation(s)
- Priyanka Sharma
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, India
| | - Amita Kumari
- Academy of Scientific and Innovative Research, CSIR-Institute of Himalayan Bioresource Technology, Palampur, India
| | - Padmanabh Singh
- Biochemistry and Molecular Biology Laboratory, Centre of Advanced Study, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Sweta Srivas
- Biochemistry and Molecular Biology Laboratory, Centre of Advanced Study, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Mahendra K Thakur
- Biochemistry and Molecular Biology Laboratory, Centre of Advanced Study, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Siva Hemalatha
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, India
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6
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Malaekeh-Nikouei A, Shokri-Naei S, Karbasforoushan S, Bahari H, Baradaran Rahimi V, Heidari R, Askari VR. Metformin beyond an anti-diabetic agent: A comprehensive and mechanistic review on its effects against natural and chemical toxins. Biomed Pharmacother 2023; 165:115263. [PMID: 37541178 DOI: 10.1016/j.biopha.2023.115263] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/24/2023] [Accepted: 07/31/2023] [Indexed: 08/06/2023] Open
Abstract
In addition to the anti-diabetic effect of metformin, a growing number of studies have shown that metformin has some exciting properties, such as anti-oxidative capabilities, anticancer, genomic stability, anti-inflammation, and anti-fibrosis, which have potent, that can treat other disorders other than diabetes mellitus. We aimed to describe and review the protective and antidotal efficacy of metformin against biologicals, chemicals, natural, medications, pesticides, and radiation-induced toxicities. A comprehensive search has been performed from Scopus, Web of Science, PubMed, and Google Scholar databases from inception to March 8, 2023. All in vitro, in vivo, and clinical studies were considered. Many studies suggest that metformin affects diseases other than diabetes. It is a radioprotective and chemoprotective drug that also affects viral and bacterial diseases. It can be used against inflammation-related and apoptosis-related abnormalities and against toxins to lower their effects. Besides lowering blood sugar, metformin can attenuate the effects of toxins on body weight, inflammation, apoptosis, necrosis, caspase-3 activation, cell viability and survival rate, reactive oxygen species (ROS), NF-κB, TNF-α, many interleukins, lipid profile, and many enzymes activity such as catalase and superoxide dismutase. It also can reduce the histopathological damages induced by many toxins on the kidneys, liver, and colon. However, clinical trials and human studies are needed before using metformin as a therapeutic agent against other diseases.
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Affiliation(s)
- Amirhossein Malaekeh-Nikouei
- International UNESCO Center for Health-Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sina Shokri-Naei
- International UNESCO Center for Health-Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sobhan Karbasforoushan
- International UNESCO Center for Health-Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Bahari
- International UNESCO Center for Health-Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Vafa Baradaran Rahimi
- Department of Cardiovascular Diseases, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Reza Heidari
- Medical Biotechnology Research Center, AJA University of Medical Sciences, Tehran, Iran; Research Center for Cancer Screening and Epidemiology, AJA University of Medical Sciences, Tehran, Iran
| | - Vahid Reza Askari
- International UNESCO Center for Health-Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran; Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran.
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7
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Atia AA, Ashour RH, Zaki MM, Rahman KM, Ramadan NM. The comparative effectiveness of metformin and risperidone in a rat model of valproic acid-induced autism, Potential role for enhanced autophagy. Psychopharmacology (Berl) 2023; 240:1313-1332. [PMID: 37133558 PMCID: PMC10172247 DOI: 10.1007/s00213-023-06371-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 04/25/2023] [Indexed: 05/04/2023]
Abstract
RATIONALE Risperidone is the first antipsychotic to be approved by Food and Drug Administration (FDA) for treating autism spectrum disorder (ASD). The potential efficacy of metformin in preventing and/or controlling ASD behavioral deficits was also recently reported. Suppression of hippocampus autophagy was suggested as a potential pathologic mechanism in ASD. OBJECTIVES Is metformin's ability to improve ASD clinical phenotype driven by its autophagy-enhancing properties? And does hippocampus autophagy enhancement underlie risperidone's efficacy as well? Both questions are yet to be answered. METHODS The effectiveness of metformin on alleviation of ASD-like behavioral deficits in adolescent rats exposed prenatally to valproic acid (VPA) was compared to that of risperidone. The potential modulatory effects of risperidone on hippocampal autophagic activity were also assessed and compared to those of metformin. RESULTS Male offspring exposed to VPA during gestation exhibited marked anxiety, social impairment and aggravation of stereotyped grooming; such deficits were efficiently rescued by postnatal risperidone or metformin therapy. This autistic phenotype was associated with suppressed hippocampal autophagy; as evidenced by reduced gene/dendritic protein expression of LC3B (microtubule-associated proteins 1 light chain 3B) and increased somatic P62 (Sequestosome 1) protein aggregates. Interestingly, compared to risperidone, the effectiveness of metformin in controlling ASD symptoms and improving hippocampal neuronal survival was well correlated to its ability to markedly induce pyramidal neuronal LC3B expression while lowering P62 accumulation. CONCLUSIONS Our work highlights, for the first time, positive modulation of hippocampus autophagy as potential mechanism underlying improvements in autistic behaviors, observed with metformin, as well as risperidone, therapy.
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Affiliation(s)
- Amany Aa Atia
- Department of Clinical Pharmacology, Faculty of Medicine, Mansoura University, 60 El-Gomhoria Street, Mansoura, Al-Dakahlia, 35516, Egypt
| | - Rehab H Ashour
- Department of Clinical Pharmacology, Faculty of Medicine, Mansoura University, 60 El-Gomhoria Street, Mansoura, Al-Dakahlia, 35516, Egypt
| | - Marwa Maf Zaki
- Department of Pathology, Faculty of Medicine, Mansoura University, 60 El-Gomhoria Street, Mansoura, Al-Dakahlia, 35516, Egypt
| | - Karawan Ma Rahman
- Department of Clinical Pharmacology, Faculty of Medicine, Mansoura University, 60 El-Gomhoria Street, Mansoura, Al-Dakahlia, 35516, Egypt
| | - Nehal M Ramadan
- Department of Clinical Pharmacology, Faculty of Medicine, Mansoura University, 60 El-Gomhoria Street, Mansoura, Al-Dakahlia, 35516, Egypt.
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8
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Corbacho-Alonso N, Rodríguez-Sánchez E, Sastre-Oliva T, Mercado-García E, Perales-Sánchez I, Juarez-Alia C, López-Almodovar LF, Padial LR, Tejerina T, Mourino-Alvarez L, Ruiz-Hurtado G, Barderas MG. Global Oxidative Status Is Linked to Calcific Aortic Stenosis: The Differences Due to Diabetes Mellitus and the Effects of Metformin. Antioxidants (Basel) 2023; 12:antiox12051024. [PMID: 37237890 DOI: 10.3390/antiox12051024] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/25/2023] [Accepted: 04/26/2023] [Indexed: 05/28/2023] Open
Abstract
Calcific aortic stenosis (CAS) and type 2 diabetes mellitus (T2DM) are related and often concomitant pathologies, accompanied by common comorbidities such as hypertension or dyslipidemia. Oxidative stress is one of the mechanisms that trigger CAS, and it can drive the vascular complications in T2DM. Metformin can inhibit oxidative stress, yet its effects have not been studied in the context of CAS. Here, we assessed the global oxidative status in plasma from patients with CAS, both alone and with T2DM (and under treatment with metformin), using multimarker scores of systemic oxidative damage (OxyScore) and antioxidant defense (AntioxyScore). The OxyScore was determined by measuring carbonyls, oxidized LDL (oxLDL), 8-hydroxy-20-deoxyguanosine (8-OHdG), and xanthine oxidase (XOD) activity. In contrast, the AntioxyScore was determined through the catalase (CAT) and superoxide dismutase (SOD) activity, as well as the total antioxidant capacity (TAC). Patients with CAS displayed enhanced oxidative stress compared to control subjects, probably exceeding their antioxidant capacity. Interestingly, patients with CAS and T2DM displayed less oxidative stress, possibly due to the benefits of their pharmacological therapy (metformin). Thus, reducing oxidative stress or enhancing antioxidant capacity through specific therapies could be a good strategy to manage CAS, focusing on personalized medicine.
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Affiliation(s)
- Nerea Corbacho-Alonso
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, SESCAM (Servicio de Salud de Castilla-La Mancha), 45071 Toledo, Spain
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), 45071 Toledo, Spain
| | - Elena Rodríguez-Sánchez
- Cardiorenal Translational Laboratory, Instituto de Investigación Imas12, Hospital Universitario 12 de Octubre, 28041 Madrid, Spain
| | - Tamara Sastre-Oliva
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, SESCAM (Servicio de Salud de Castilla-La Mancha), 45071 Toledo, Spain
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), 45071 Toledo, Spain
| | - Elisa Mercado-García
- Cardiorenal Translational Laboratory, Instituto de Investigación Imas12, Hospital Universitario 12 de Octubre, 28041 Madrid, Spain
| | - Ines Perales-Sánchez
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, SESCAM (Servicio de Salud de Castilla-La Mancha), 45071 Toledo, Spain
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), 45071 Toledo, Spain
| | - Cristina Juarez-Alia
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, SESCAM (Servicio de Salud de Castilla-La Mancha), 45071 Toledo, Spain
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), 45071 Toledo, Spain
| | | | - Luis R Padial
- Department of Cardiology, Hospital General Universitario de Toledo, SESCAM, 45007 Toledo, Spain
| | - Teresa Tejerina
- Department of Pharmacology, School of Medicine, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Laura Mourino-Alvarez
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, SESCAM (Servicio de Salud de Castilla-La Mancha), 45071 Toledo, Spain
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), 45071 Toledo, Spain
| | - Gema Ruiz-Hurtado
- Cardiorenal Translational Laboratory, Instituto de Investigación Imas12, Hospital Universitario 12 de Octubre, 28041 Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares, CIBER-CV Hospital Universitario 12 de Octubre, 28041 Madrid, Spain
| | - María G Barderas
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, SESCAM (Servicio de Salud de Castilla-La Mancha), 45071 Toledo, Spain
- Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos, Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), 45071 Toledo, Spain
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9
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Wen J, Yi Z, Chen Y, Huang J, Mao X, Zhang L, Zeng Y, Cheng Q, Ye W, Liu Z, Liu F, Liu J. Efficacy of metformin therapy in patients with cancer: a meta-analysis of 22 randomised controlled trials. BMC Med 2022; 20:402. [PMID: 36280839 PMCID: PMC9594974 DOI: 10.1186/s12916-022-02599-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 10/10/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND To investigate whether metformin monotherapy or adjunctive therapy improves the prognosis in patients with any type of cancer compared to non-metformin users (age ≥18). METHODS Databases (Medline, Embase, and the Cochrane Central Register of Controlled Trials) and clinical trial registries ( ClinicalTrials.gov ; the World Health Organization International Clinical Trials Registry Platform) were screened for randomized, controlled trials (RCT) reporting at least progression-free survival (PFS) and/or overall survival (OS). Main outcome measures included hazard ratios (HR), and combined HRs and 95% confidence intervals (CI) were calculated using random-effects models. RESULTS Of the 8419 records screened, 22 RCTs comprising 5943 participants were included. Pooled HRs were not statistically significant in both PFS (HR 0.97, 95% CI 0.82-1.15, I2 = 50%) and OS (HR 0.98, 95% CI 0.86-1.13, I2 = 33%) for patients with cancer between the metformin and control groups. Subgroup analyses demonstrated that metformin treatment was associated with a marginally significant improvement in PFS in reproductive system cancers (HR 0.86, 95% CI 0.74-1.00) and a significantly worse PFS in digestive system cancers (HR 1.45, 95% CI 1.03-2.04). The PFS or OS was observed consistently across maintenance dose, diabetes exclusion, median follow-up, risk of bias, and combined antitumoral therapies. CONCLUSION Metformin treatment was not associated with cancer-related mortality in adults compared with placebo or no treatment. However, metformin implied beneficial effects in the PFS of the patients with reproductive system cancers but was related to a worse PFS in digestive system cancers. SYSTEMATIC REVIEW REGISTRATION PROSPERO registration number CRD42022324672.
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Affiliation(s)
- Jie Wen
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hypothalamic Pituitary Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhenjie Yi
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hypothalamic Pituitary Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yuyao Chen
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, Hunan, China
| | - Jing Huang
- National Clinical Research Center for Mental Disorders and Department of Psychiatry, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Xueyi Mao
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Liyang Zhang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yu Zeng
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hypothalamic Pituitary Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Quan Cheng
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Wenrui Ye
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hypothalamic Pituitary Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhixiong Liu
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hypothalamic Pituitary Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Fangkun Liu
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China. .,Hypothalamic Pituitary Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Jingfang Liu
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China. .,Hypothalamic Pituitary Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China.
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10
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Khan FZ, Mostaid MS, Apu MNH. Molecular Signaling Pathway Targeted Therapeutic Potential of Thymoquinone in Alzheimer’s disease. Heliyon 2022; 8:e09874. [PMID: 35832342 PMCID: PMC9272348 DOI: 10.1016/j.heliyon.2022.e09874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 04/07/2022] [Accepted: 06/30/2022] [Indexed: 11/29/2022] Open
Abstract
Alzheimer’s disease (AD) is a neurodegenerative disease with rapid progression. Black cumin (Nigella sativa) is a nutraceutical that has been investigated as a prophylactic and therapeutic agent for this disease due to its ability to prevent or retard the progression of neurodegeneration. Thymoquinone (TQ) is the main bioactive compound isolated from the seeds of black cumin. Several reports have shown that it has promising potential in the prevention and treatment of AD due to its significant antioxidative, anti-inflammatory, and antiapoptotic properties along with several other mechanisms that target the altered signaling pathways due to the disease pathogenesis. In addition, it shows anticholinesterase activity and prevents α-synuclein induced synaptic damage. The aim of this review is to summarize the potential aspects and mechanisms by which TQ imparts its action in AD.
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11
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Thomas C, Wurzer L, Malle E, Ristow M, Madreiter-Sokolowski CT. Modulation of Reactive Oxygen Species Homeostasis as a Pleiotropic Effect of Commonly Used Drugs. FRONTIERS IN AGING 2022; 3:905261. [PMID: 35821802 PMCID: PMC9261327 DOI: 10.3389/fragi.2022.905261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 05/18/2022] [Indexed: 01/17/2023]
Abstract
Age-associated diseases represent a growing burden for global health systems in our aging society. Consequently, we urgently need innovative strategies to counteract these pathological disturbances. Overwhelming generation of reactive oxygen species (ROS) is associated with age-related damage, leading to cellular dysfunction and, ultimately, diseases. However, low-dose ROS act as crucial signaling molecules and inducers of a vaccination-like response to boost antioxidant defense mechanisms, known as mitohormesis. Consequently, modulation of ROS homeostasis by nutrition, exercise, or pharmacological interventions is critical in aging. Numerous nutrients and approved drugs exhibit pleiotropic effects on ROS homeostasis. In the current review, we provide an overview of drugs affecting ROS generation and ROS detoxification and evaluate the potential of these effects to counteract the development and progression of age-related diseases. In case of inflammation-related dysfunctions, cardiovascular- and neurodegenerative diseases, it might be essential to strengthen antioxidant defense mechanisms in advance by low ROS level rises to boost the individual ROS defense mechanisms. In contrast, induction of overwhelming ROS production might be helpful to fight pathogens and kill cancer cells. While we outline the potential of ROS manipulation to counteract age-related dysfunction and diseases, we also raise the question about the proper intervention time and dosage.
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Affiliation(s)
- Carolin Thomas
- Laboratory of Energy Metabolism Institute of Translational Medicine Department of Health Sciences and Technology ETH Zurich, Schwerzenbach, Switzerland
| | - Lia Wurzer
- Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
| | - Ernst Malle
- Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
| | - Michael Ristow
- Laboratory of Energy Metabolism Institute of Translational Medicine Department of Health Sciences and Technology ETH Zurich, Schwerzenbach, Switzerland
| | - Corina T. Madreiter-Sokolowski
- Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
- *Correspondence: Corina T. Madreiter-Sokolowski,
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12
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Can metformin modulate the retinal degenerative changes in a rat model of retinitis pigmentosa? Tissue Cell 2022; 76:101786. [DOI: 10.1016/j.tice.2022.101786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 02/18/2022] [Accepted: 03/13/2022] [Indexed: 11/21/2022]
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13
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Thymoquinone Improved Nonylphenol-Induced Memory Deficit and Neurotoxicity Through Its Antioxidant and Neuroprotective Effects. Mol Neurobiol 2022; 59:3600-3616. [PMID: 35355194 DOI: 10.1007/s12035-022-02807-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 03/17/2022] [Indexed: 12/27/2022]
Abstract
Nonylphenol (NP), a well-known endocrine-disrupter chemical, has several harmful effects on the central nervous system including neuroendocrine disruption, cognitive impairment, and neurotoxicity. Thymoquinone (TQ) is a main bioactive compound in the black seeds of Nigella sativa that has antioxidant, anti-inflammatory, and neuroprotective properties. Here, we investigated the neuroprotective effect of TQ against NP-induced memory deficit and neurotoxicity in rats. To induce memory impairment, NP (25 mg/kg) was used as gavage in male Wistar rats for 21 days. TQ (2.5, 5, and 10 mg/kg) was intraperitoneally administered in NP-treated animals. The morris water maze test was performed to assess spatial learning and memory. The hippocampal tissues were isolated from the brain for histopathological evaluation. Biochemical, molecular, and cellular tests were performed to quantify oxidant (malondialdehyde; MDA)/antioxidant (superoxide dismutase (SOD), total antioxidant capacity (TAC), and reduced glutathione (GSH) parameters) as well as markers for astrocytic activation (glial fibrillary acidic protein; GFAP) and neuronal death (alpha-synuclein; α-syn). Results showed TQ (5 mg/kg) significantly improved NP-induced memory impairment. Histological data revealed a significant increase in the number of necrotic cells in hippocampus, and TQ treatment markedly decreased this effect. The GSH and TAC levels were significantly increased in TQ-treated groups compared to NP group. The molecular analysis indicated that NP increased GFAP and decreased α-syn expression and TQ treatment did the reverse. In vitro study in astrocytes isolated from mice brain showed that TQ significantly increased cell viability in NP-induced cytotoxicity. This study strongly indicates that TQ has neuroprotective effects on NP-induced neurotoxicity through reducing oxidative damages and neuroinflammation. This study investigates the behavioral neurotoxicity induced by Nonylphenol (NP) and the protective effects of Thymoquinone (TQ) as a potent antioxidant compound using molecular, cell culture, histopathological and biochemical techniques.
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14
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Liu M, Zhao YT, Lv YY, Xu T, Li D, Xiong YC, Xin WJ, Lin SY. Metformin Relieves Bortezomib-Induced Neuropathic Pain by Regulating AMPKa2-Mediated Autophagy in the Spinal Dorsal Horn. Neurochem Res 2022; 47:1878-1887. [PMID: 35278160 DOI: 10.1007/s11064-022-03571-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/25/2022] [Accepted: 03/03/2022] [Indexed: 11/28/2022]
Abstract
Chemotherapy-induced neuropathic pain is a major clinical problem with limited treatment options. Here, we show that metformin relieves bortezomib (BTZ)-evoked induction and maintenance of neuropathic pain by preventing the reduction in the expression of Beclin-1, an autophagy marker, in the spinal dorsal horn. Application of rapamycin or 3-methyladenine, autophagy inducer and inhibitor, respectively, affected the mechanical allodynia differently. Co-application of 3-methyladenine and metformin partially inhibited the effect of metformin in recovering Beclin-1 expression and in reducing the pain behavior in rats subjected to BTZ treatment. BTZ treatment also reduced the expression of AMPKa2 in the dorsal horn, which was recovered by metformin treatment. Overexpression of AMPKa2 attenuated the BTZ-evoked reduction in Beclin-1 expression and mechanical allodynia, whereas intrathecal injection of AMPKa2 siRNA decreased the Beclin-1 expression and induced mechanical allodynia in naive rats. Moreover, BTZ treatment increased the GATA3 expression in the dorsal horn, and GATA3 siRNA attenuated the AMPKa2 downregulation and mechanical allodynia induced by BTZ. Chromatin immunoprecipitation further showed that BTZ induced an increased recruitment of GATA3 to multiple sites in the AMPKa2 promoter region. Furthermore, decreased acetylation and increased methylation of histone H3 in the AMPKa2 promoter in the spinal dorsal horn was detected after BTZ treatment. Our findings suggest that metformin may regulate AMPKa2-mediated autophagy in the dorsal horn and alleviate the behavioral hypersensitivity induced by BTZ.
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Affiliation(s)
- Meng Liu
- Zhongshan Medical School and Guangdong Province Key Laboratory of Brain Function and Disease, Sun Yat-Sen University, Zhongshan Rd. 2, Guangzhou, China.,Department of Anesthesia and Pain Medicine, Guangzhou First People's Hospital, Guangzhou, China
| | - Yu-Ting Zhao
- Zhongshan Medical School and Guangdong Province Key Laboratory of Brain Function and Disease, Sun Yat-Sen University, Zhongshan Rd. 2, Guangzhou, China
| | - You-You Lv
- Department of Anesthesia, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, China
| | - Ting Xu
- Zhongshan Medical School and Guangdong Province Key Laboratory of Brain Function and Disease, Sun Yat-Sen University, Zhongshan Rd. 2, Guangzhou, China
| | - Dai Li
- Department of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Yuan-Chang Xiong
- Department of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Wen-Jun Xin
- Zhongshan Medical School and Guangdong Province Key Laboratory of Brain Function and Disease, Sun Yat-Sen University, Zhongshan Rd. 2, Guangzhou, China
| | - Su-Yan Lin
- Zhongshan Medical School and Guangdong Province Key Laboratory of Brain Function and Disease, Sun Yat-Sen University, Zhongshan Rd. 2, Guangzhou, China.
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15
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Metformin in Alzheimer’s disease: An overview of potential mechanisms, preclinical and clinical findings. Biochem Pharmacol 2022; 197:114945. [DOI: 10.1016/j.bcp.2022.114945] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 02/01/2022] [Accepted: 02/02/2022] [Indexed: 12/13/2022]
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16
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Medhet M, El-Bakly WM, Badr AM, Awad A, El-Demerdash E. Thymoquinone attenuates isoproterenol-induced myocardial infarction by inhibiting cytochrome C and matrix metalloproteinase-9 expression. Clin Exp Pharmacol Physiol 2021; 49:391-405. [PMID: 34767666 DOI: 10.1111/1440-1681.13614] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 11/05/2021] [Accepted: 11/08/2021] [Indexed: 11/29/2022]
Abstract
Thymoquinone (TQ) is the main active constituent of Nigella sativa. The present study aimed to investigate the effect of TQ on apoptotic parameters and MMP-9 expression in isoproterenol (ISP)-induced myocardial infarction (MI). TQ was given once daily for 7 days at doses of 10 and 20 mg/kg orally with ISP (86 mg/kg; s.c.) administered on the sixth and seventh days. TQ pre-treatment protected against ISP-induced MI as approved by normalisation of electrocardiogram (ECG) and b (CK)-MB, minimal histopathological changes, and reduction of the infarction size. Effects of TQ could be supported by its antioxidant activity, evidenced by the increase of cardiac reduced glutathione and total serum antioxidant capacity, and the inhibition of ISO-induced lipid peroxidation. TQ anti-inflammatory activity was associated with reduced expression of NF-κB and TNF-α. TQ ameliorated cardiomyocytes, apoptotic pathways by inhibiting both the intrinsic pathway, via reducing cytoplasmic cytochrome C, and the extrinsic pathway, by inhibiting TNF-α and caspases, and the effect of TQ was dose-dependent. Moreover, TQ reduced the expression of metalloproteinase (MMP)-9, which is considered as a prognostic marker of ventricular remodelling, recommending that TQ can be used as a possible supplement to minimise post-MI changes. So, we conclude that TQ antiapoptotic activity and the inhibitory modulation of MMP-9 expression contribute to TQ protective effects in MI. To our knowledge, this is the first study reporting the effect of TQ on cytochrome c activity and MMP-9 expression in MI.
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Affiliation(s)
- Marwa Medhet
- Department of Crime Investigation Research, The National Centre for Social & Criminological Research, Cairo, Egypt
| | - Wesam M El-Bakly
- Department of Pharmacology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Amira M Badr
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt.,Department of Pharmacology & Toxicology, Faculty of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Azza Awad
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Al Azhar University, Cairo, Egypt
| | - Ebtehal El-Demerdash
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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17
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Pottoo FH, Salahuddin M, Khan FA, Alomar F, AL Dhamen MA, Alhashim AF, Alqattan HH, Gomaa MS, Alomary MN. Thymoquinone Potentiates the Effect of Phenytoin against Electroshock-Induced Convulsions in Rats by Reducing the Hyperactivation of m-TOR Pathway and Neuroinflammation: Evidence from In Vivo, In Vitro and Computational Studies. Pharmaceuticals (Basel) 2021; 14:1132. [PMID: 34832914 PMCID: PMC8618888 DOI: 10.3390/ph14111132] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/01/2021] [Accepted: 11/03/2021] [Indexed: 12/16/2022] Open
Abstract
Epilepsy is a chronic neurodegenerative disease characterized by multiple seizures, hereto 35% of patients remain poor responders. Phenytoin (PHT; 20 and 40 mg/kg) and thymoquinone (THQ; 40 and 80 mg/kg) were given alone and as a low dose combination for 14 days (p.o), prior to challenge with maximal electroshock (MES; 180 mA, 220 V, 0.2 s). Apart from observing convulsions, hippocampal mTOR, IL-1β, IL-6 and TNF-α levels were measured. Hippocampal histomorphological analysis was also conducted. In vitro cell line studies and molecular docking studies were run in parallel. The results revealed the synergistic potential of the novel duo-drug combination regimen: PHT (20 mg/kg) and THQ (40 mg/kg) against MES-induced convulsions. MES amplified signaling through mTOR, and inflated the levels of proinflammatory markers (IL-1β, IL-6 and TNF-α), which was significantly averted (p < 0.001) with the said drug combination. The computational studies revealed that PHT and THQ cooperatively bind the active site on Akt (upstream target of m-TOR) and establish a good network of intermolecular interactions, which indicates the sequential inhibition of PI3K/Akt/m-TOR signaling with the combination. The combination also increased cell viability by 242.81% compared to 85.66% viability from the the toxic control. The results suggest that the PHT and THQ in combination possesses excellent anticonvulsant and neuroprotective effects.
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Affiliation(s)
- Faheem Hyder Pottoo
- Department of Pharmacology, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia; (F.A.); (M.A.A.D.); (A.F.A.); (H.H.A.)
| | - Mohammed Salahuddin
- Department of Clinical Pharmacy Research, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia;
| | - Firdos Alam Khan
- Department of Stem Cell Research, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia;
| | - Fadhel Alomar
- Department of Pharmacology, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia; (F.A.); (M.A.A.D.); (A.F.A.); (H.H.A.)
| | - Marwa Abdullah AL Dhamen
- Department of Pharmacology, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia; (F.A.); (M.A.A.D.); (A.F.A.); (H.H.A.)
| | - Abrar Fouad Alhashim
- Department of Pharmacology, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia; (F.A.); (M.A.A.D.); (A.F.A.); (H.H.A.)
| | - Hawra Hussain Alqattan
- Department of Pharmacology, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia; (F.A.); (M.A.A.D.); (A.F.A.); (H.H.A.)
| | - Mohamed S. Gomaa
- Department of Pharmaceutical Chemistry, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia;
| | - Mohammad N. Alomary
- National Centre for Biotechnology, Kind Abdulaziz City for Science and Technology (KACST), P.O. Box 1982, Riyadh 11442, Saudi Arabia
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18
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Calabrese EJ, Agathokleous E, Kapoor R, Dhawan G, Kozumbo WJ, Calabrese V. Metformin-enhances resilience via hormesis. Ageing Res Rev 2021; 71:101418. [PMID: 34365027 DOI: 10.1016/j.arr.2021.101418] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/23/2021] [Accepted: 08/02/2021] [Indexed: 02/06/2023]
Abstract
The present paper demonstrates that metformin (MF) induced a broad spectrum of hormetic biphasic dose responses in a wide range of experimental studies, affecting multiple organ systems, cell types, and endpoints enhancing resilience to chemical stresses in preconditioning and co-current exposure protocols. Detailed mechanistic evaluations indicate that MF-induced hormetic-adaptive responses are mediated often via the activation of adenosine monophosphate-activated kinase (AMPK) protein and its subsequent upregulation of nuclear factor erythroid 2-related factor 2 (Nrf2). Hormesis-induced protective responses by MF are largely mediated via a vast and highly integrated anti-inflammatory molecular network that enhances longevity and delays the onset and slows the progression of neurodegenerative and other chronic diseases.
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19
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Ni J, Jiang L, Shen G, Xia Z, Zhang L, Xu J, Feng Q, Qu H, Xu F, Li X. Hydrogen sulfide reduces pyroptosis and alleviates ischemia-reperfusion-induced acute kidney injury by inhibiting NLRP3 inflammasome. Life Sci 2021; 284:119466. [PMID: 33811893 DOI: 10.1016/j.lfs.2021.119466] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 03/17/2021] [Accepted: 03/26/2021] [Indexed: 12/21/2022]
Abstract
AIMS Ischemia-reperfusion (I/R)-induced acute kidney injury (AKI) shows high mortality. Hydrogen sulfide (H2S) is essential for regulating kidney function. This study explored the role and mechanism of H2S in I/R-induced AKI. MATERIALS AND METHODS I/R-induced mouse model and hypoxia/reoxygenation (H/R)-induced HK2 cell model of AKI were established and treated with NaHS (H2S donor), MCC950 (NLRP3 inhibitor) or DL-Propargylglycine (PAG, CSE inhibitor). Serum creatinine (Cr) and blood urea nitrogen (BUN) were measured to evaluate kidney function. The pathological changes of kidney tissues were detected. H2S level and H2S synthetase activity in kidney tissues were detected. Pyroptosis was assessed by pyroptotic cell numbers and pyroptosis-related protein levels determination. HK-2 cell viability and apoptosis were measured. NLRP3 protein level was detected. The role of NLRP3/Caspase-1 was verified in vivo and in vitro after MCC950 or PAG intervention. KEY FINDINGS I/R-induced mice showed elevated levels of serum Cr and BUN, and obvious pathological changes, including severe tubular dilatation, tubular cell swelling, tubular epithelial cell abscission, tubular cell necrosis and inflammatory cell infiltration. H2S level and H2S synthetase activity were decreased. Increasing the level of H2S by NaHS improved the pathological changes of kidney tissues and limited the number of pyroptotic cells. In vitro, NaHS could reverse H/R-induced cell injury. H2S suppressed cell pyroptosis and kidney injury via inhibiting the NLRP3/Caspase-1 axis. SIGNIFICANCE We highlighted that H2S prevented cell pyroptosis via suppressing the NLRP3/Caspase-1 axis, thereby inhibiting I/R-induced AKI. These findings may confer novel insights for the clinical management of I/R-induced AKI.
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Affiliation(s)
- Jindi Ni
- Department of Critical Care Medicine, Minhang Hospital, Fudan University, Shanghai 201199, China
| | - Lijing Jiang
- Department of Critical Care Medicine, Minhang Hospital, Fudan University, Shanghai 201199, China
| | - Guofeng Shen
- Department of Critical Care Medicine, Minhang Hospital, Fudan University, Shanghai 201199, China
| | - Zhuye Xia
- Department of Critical Care Medicine, Minhang Hospital, Fudan University, Shanghai 201199, China
| | - Lu Zhang
- Department of Critical Care Medicine, Minhang Hospital, Fudan University, Shanghai 201199, China
| | - Jing Xu
- General Practice, Shanghai Meilong Community Health Service Center, Shanghai 201199, China
| | - Quanxia Feng
- Department of Critical Care Medicine, Minhang Hospital, Fudan University, Shanghai 201199, China
| | - Hongping Qu
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Fulin Xu
- Department of Neurosurgery, Minhang Hospital, Fudan University, Shanghai 201199, China.
| | - Xiang Li
- Department of Critical Care Medicine, Minhang Hospital, Fudan University, Shanghai 201199, China.
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20
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Metformin alleviates cholestasis-associated nephropathy through regulating oxidative stress and mitochondrial function. LIVER RESEARCH 2021. [DOI: 10.1016/j.livres.2020.12.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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21
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Muraleedharan R, Dasgupta B. AMPK in the brain: its roles in glucose and neural metabolism. FEBS J 2021; 289:2247-2262. [PMID: 34355526 DOI: 10.1111/febs.16151] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 07/22/2021] [Accepted: 08/04/2021] [Indexed: 11/28/2022]
Abstract
The adenosine monophosphate-activated protein kinase (AMPK) is an integrative metabolic sensor that maintains energy balance at the cellular level and plays an important role in orchestrating intertissue metabolic signaling. AMPK regulates cell survival, metabolism, and cellular homeostasis basally as well as in response to various metabolic stresses. Studies so far show that the AMPK pathway is associated with neurodegeneration and CNS pathology, but the mechanisms involved remain unclear. AMPK dysregulation has been reported in neurodegenerative diseases such as amyotrophic lateral sclerosis, multiple sclerosis, Alzheimer's disease, Parkinson's disease, Huntington's disease, and other neuropathies. AMPK activation appears to be both neuroprotective and pro-apoptotic, possibly dependent upon neural cell types, the nature of insults, and the intensity and duration of AMPK activation. While embryonic brain development in AMPK null mice appears to proceed normally without any overt structural abnormalities, our recent study confirmed the full impact of AMPK loss in the postnatal and aging brain. Our studies revealed that Ampk deletion in neurons increased basal neuronal excitability and reduced latency to seizure upon stimulation. Three major pathways, glycolysis, pentose phosphate shunt, and glycogen turnover, contribute to utilization of glucose in the brain. AMPK's regulation of aerobic glycolysis in astrocytic metabolism warrants further deliberation, particularly glycogen turnover and shuttling of glucose- and glycogen-derived lactate from astrocytes to neurons during activation. In this minireview, we focus on recent advances in AMPK and energy-sensing in the brain.
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Affiliation(s)
| | - Biplab Dasgupta
- Division of Oncology, Cincinnati Children's Hospital Medical Center, OH, USA
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22
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Neuroprotective Effects of Curcumin in Methamphetamine-Induced Toxicity. Molecules 2021; 26:molecules26092493. [PMID: 33923340 PMCID: PMC8123176 DOI: 10.3390/molecules26092493] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/20/2021] [Accepted: 04/22/2021] [Indexed: 01/18/2023] Open
Abstract
Curcumin (CUR), a natural polyphenol extracted from rhizome of the Curcuma longa L, has received great attention for its multiple potential health benefits as well as disease prevention. For instance, CUR protects against toxic agents acting on the human body, including the nervous system. In detail, CUR possesses, among others, strong effects as an autophagy activator. The present study indicates that CUR counteracts methamphetamine (METH) toxicity. Such a drug of abuse is toxic by disturbing the autophagy machinery. We profited from an unbiased, low variable cell context by using rat pheochromocytoma PC12 cell line. In such a system, a strong protection was exerted by CUR against METH toxicity. This was associated with increased autophagy flux, merging of autophagosomes with lysosomes and replenishment of autophagy vacuoles with LC3, which instead is moved out from the vacuoles by METH. This is expected to enable the autophagy machinery. In fact, while in METH-treated cells the autophagy substrates α-synuclein accumulates in the cytosol, CUR speeds up α-synuclein clearance. Under the effects of CUR LC3 penetrate in autophagy vacuoles to commit them to cell clearance and promotes the autophagy flux. The present data provide evidence that CUR counteracts the neurotoxic effects induced by METH by promoting autophagy.
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23
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Esmaeilnejad S, Semnanian S, Javan M. Metformin Protects Myelin from Degeneration in A Mouse Model of Iysophosphatidylcholine-Induced Demyelination in The Optic Chiasm. CELL JOURNAL 2021; 23:119-128. [PMID: 33650828 PMCID: PMC7944130 DOI: 10.22074/cellj.2021.7174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 01/08/2020] [Indexed: 12/16/2022]
Abstract
Objective Multiple sclerosis (MS) is a demyelinating disease of the central nervous system. The autoimmune
pathology and long-term inflammation lead to substantial demyelination. These events lead to a substantial loss
of oligodendrocytes (OLs), which in a longer period, results in axonal loss and long-term disabilities. Neural cells
protection approaches decelerate or inhibit the disease progress to avoid further disability. Previous studies showed
that metformin has beneficial effects against neurodegenerative conditions. In this experimental study, we examined
possible protective effects of metformin on toxin-induced myelin destruction in adult mice brains.
Materials and Methods Lysophosphatidylcholine (LPC) was used to induce demyelination in mice optic chiasm. We
examined the extent of demyelination at different time points post LPC injection using myelin staining and evaluated the
severity of inflammation. Functional state of optic pathway was evaluated by visual evoked potential (VEP) recording.
Results Metformin attenuated LPC-induced demyelination (P<0.05) and inflammation (P<0.05) and protected against
significant decrease (P<0.05) in functional conductivity of optic tract. These data indicated that metformin administration
attenuates the myelin degeneration following LPC injection which led to functional enhancement.
Conclusion Our findings suggest metformin for combination therapy for patients suffering from the myelin degenerative
diseases, especially multiple sclerosis; however, additional mechanistic studies are required.
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Affiliation(s)
- Saman Esmaeilnejad
- Department of Physiology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Saeed Semnanian
- Department of Physiology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mohammad Javan
- Department of Physiology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran. .,Department of Brain and Cognitive Sciences, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
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Simvastatin attenuates spatial memory impairment via inhibiting microgliosis and apoptotic cell death against ethanol induced neurotoxicity in the developing rat hippocampus. Brain Res 2021; 1758:147341. [PMID: 33548270 DOI: 10.1016/j.brainres.2021.147341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 01/22/2021] [Accepted: 01/29/2021] [Indexed: 12/29/2022]
Abstract
Ethanol is associated with oxidative stress. Exposure to ethanol during childhood may lead to neurological disorders. Congenital disorders induced by alcohol are mainly caused by an oxidative-inflammatory cascade due to extensive apoptotic neurodegeneration in the brain, particularly in the hippocampus. Simvastatin, which acts as an inhibitor of 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA), is widely used to manage cardiovascular diseases. Recently, the neuroprotective effects of simvastatin against nervous system disorders have been introduced. In this study, we examined the protective effects of simvastatin on ethanol-related neurotoxicity in the hippocampus of rat pups. Ethanol (5.27 g/kg) in a milk solution (27.8 mL/kg) was administered to male rat pups via intragastric intubation at 2-10 days after birth. Also, 10 and 20 mg/kg of simvastatin were injected to the animals. By using Morris water maze task, the hippocampus-dependent memory and spatial learning was evaluated 36 days after birth. An ELISA assay was performed to investigate the antioxidant and anti-inflammatory effects of simvastatin by measuring the levels of tumor necrosis factor-α (TNF-α), and antioxidant enzymes. To assess the expression levels of Iba1 immunohistochemical staining and caspase-3 immunofluorescence staining was performed. The current study demonstrated that administration of simvastatin significantly attenuates spatial memory impairment (P < 0.01) after ethanol neurotoxicity. Also simvastatin could considerably increase the total superoxide dismutaseand glutathione levels (P < 0.01). Moreover, it was associated with a greater reduction in malondialdehyde (P < 0.05) and TNF-α levels, compared to the ethanol group (P < 0.01). Furthermore, in the simvastatin group, the hippocampal level of caspase-3 and the level of Iba1-positive cells, reduced (P < 0.01). This study demonstrated that apoptotic signaling, mediated by the oxidative-inflammatory cascade, could be inhibited by simvastatin in rat pups with ethanol exposure in the postnatal period.
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Kim SH, Park TS, Jin HY. Metformin Preserves Peripheral Nerve Damage with Comparable Effects to Alpha Lipoic Acid in Streptozotocin/High-Fat Diet Induced Diabetic Rats. Diabetes Metab J 2020; 44:842-853. [PMID: 32602278 PMCID: PMC7801759 DOI: 10.4093/dmj.2019.0190] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 11/28/2019] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Metformin is widely marketed medication for the treatment of diabetes, but its pharmacological effect on diabetic peripheral neuropathy remains unclear. In this study, the effect of metformin on peripheral nerves in diabetic rats was investigated using diverse neuronal parameters of nerve fibers. METHODS Rats were assigned to one of four groups (n=7 to 10 per group): normal, diabetes mellitus (DM), DM+metformin (100 mg/kg), and DM+alpha lipoic acid (ALA, 100 mg/kg). DM was induced by streptozotocin/high-fat diet (STZ/HFD). After 12 weeks, the sensory thresholds to mechanical and heat stimuli were assessed. Repeated sensory tests, immunofluorescence microscopic comparison of peripheral nerves, and biochemical blood analysis were performed after 24 weeks. RESULTS Both DM+metformin and DM+ALA groups showed similar trends to diverse sensory tests at 24 weeks compared to DM group although the degree of change were different according to the stimulated senses. There was no significant difference in the comparison of the intraepidermal nerve fiber density (IENFD) of peripheral nerves between the DM+metformin and DM+ALA groups (11.83±0.07 fibers/mm vs. 12.37±1.82 fibers/mm, respectively). Both groups showed preserved IENFD significantly compared with DM group (8.46±1.98 fibers/mm, P<0.05). Sciatic nerve morphology of the experimental animals showed a similar trend to the IENFD, with respect to axonal diameter, myelin sheath thickness, and myelinated fiber diameter. CONCLUSION Metformin has beneficial pharmacological effects on the preservation of peripheral nerves in diabetic rats and its effects are comparable to those of ALA.
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Affiliation(s)
- Sun Hee Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Jeonbuk National University Medical School, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Korea
| | - Tae Sun Park
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Jeonbuk National University Medical School, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Korea
| | - Heung Yong Jin
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Jeonbuk National University Medical School, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Korea
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The Modulatory Effect of Metformin on Ethanol-Induced Anxiety, Redox Imbalance, and Extracellular Matrix Levels in the Brains of Wistar Rats. J Mol Neurosci 2020; 70:1943-1961. [PMID: 32621100 DOI: 10.1007/s12031-020-01593-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Accepted: 05/13/2020] [Indexed: 01/14/2023]
Abstract
The study investigated the potential neuroprotective effects of metformin (MET) on alcohol-induced neurotoxicity in adult Wistar rats. The animals were randomized in four groups (n = 10): control, alcohol (ALC), ALC + MET, and MET. ALC (2 g/kg b.w.) and MET (200 mg/kg b.w.) were orally administered for 21 days, once daily. For the ALC + MET group, MET was administered 2 h after ALC treatment. On day 22, the open field test (OFT) and elevated plus maze (EPM) were performed. MET improved global activity and increased the time spent in unprotected open arms, decreased oxidative stress, both in the frontal lobe and in the hippocampus, and increased neuroglobin expression in the frontal cortex. Histopathologically, an increased neurosecretory activity in the frontal cortex in the ALC + MET group was noticed. Thus, our findings suggest that metformin has antioxidant and anxiolytic effects and may partially reverse the neurotoxic effects induced by ethanol.
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El-Ghaiesh SH, Bahr HI, Ibrahiem AT, Ghorab D, Alomar SY, Farag NE, Zaitone SA. Metformin Protects From Rotenone-Induced Nigrostriatal Neuronal Death in Adult Mice by Activating AMPK-FOXO3 Signaling and Mitigation of Angiogenesis. Front Mol Neurosci 2020; 13:84. [PMID: 32625061 PMCID: PMC7314970 DOI: 10.3389/fnmol.2020.00084] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 04/24/2020] [Indexed: 12/12/2022] Open
Abstract
Parkinson’s disease (PD) is a neurodegenerative disease that affects substantia nigra dopamine neurons. Many studies have documented the role of oxidative stress and angiogenesis in the pathogenesis of PD. Metformin (MTF) is an antidiabetic medication and AMP-activated protein kinase (AMPK) regulator that has shown antioxidant and antiangiogenic properties in many disorders. The aim of this study is to investigate the neuroprotective effect of MTF in a mouse model of rotenone-prompted PD with a highlight on its influence on the AMPK/forkhead box transcription factor O3 (FOXO3) pathway and striatal angiogenesis. In the running study, PD was induced in mice using repeated doses of rotenone and concomitantly treated with MTF 100 or 200 mg/kg/day for 18 days. Rotarod and pole tests were used to examine the animals’ motor functionality. After that, animals were sacrificed, and brains were isolated and processed for immunohistochemical investigations or biochemical analyses. Oxidant stress and angiogenic markers were measured, including reduced glutathione, malondialdehyde, the nuclear factor erythroid 2–related factor 2 (Nrf2), hemoxygenase-1, thioredoxin, AMPK, FOXO3, and vascular endothelial growth factor (VEGF). Results indicated that MTF improved animals’ motor function, improved striatal glutathione, Nrf2, hemoxygenase-1, and thioredoxin. Furthermore, MTF upregulated AMPK-FOXO3 proteins and reduced VEGF and cleaved caspase 3. MTF also increased the number of tyrosine hydroxylase (TH)–stained neurons in the substantia nigra neurons and in striatal neuronal terminals. This study is the first to highlight that the neuroprotective role of MTF is mediated through activation of AMPK-FOXO3 signaling and inhibition of the proangiogenic factor, VEGF. Further studies are warranted to confirm this mechanism in other models of PD and neurodegenerative diseases.
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Affiliation(s)
- Sabah H El-Ghaiesh
- Department of Pharmacology, Faculty of Medicine, University of Tabuk, Tabuk, Saudi Arabia.,Department of Pharmacology, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Hoda I Bahr
- Department of Biochemistry, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
| | - Afaf T Ibrahiem
- Department of Pathology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Doaa Ghorab
- Department of Pathology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Suliman Y Alomar
- Doping Research Chair, Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Noha E Farag
- Department of Physiology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt.,Department of Physiology, College of Medicine, Taif University, Taif, Saudi Arabia
| | - Sawsan A Zaitone
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt.,Department of Pharmacology and Toxicology, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia
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Quintanilla RA, Pérez MJ, Aranguiz A, Tapia-Monsalves C, Mendez G. Activation of the Melanocortin-4 Receptor Prevents Oxidative Damage and Mitochondrial Dysfunction in Cultured Hippocampal Neurons Exposed to Ethanol. Neurotox Res 2020; 38:421-433. [DOI: 10.1007/s12640-020-00204-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 03/25/2020] [Accepted: 04/07/2020] [Indexed: 12/21/2022]
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29
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Tang BL. Could metformin be therapeutically useful in Huntington's disease? Rev Neurosci 2020; 31:297-317. [PMID: 31751298 DOI: 10.1515/revneuro-2019-0072] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 09/09/2019] [Indexed: 12/15/2022]
Abstract
Emerging evidence suggest that dimethylbiguanide (metformin), a first-line drug for type 2 diabetes mellitus, could be neuroprotective in a range of brain pathologies, which include neurodegenerative diseases and brain injury. However, there are also contraindications that associate metformin treatment with cognitive impairment as well as adverse outcomes in Alzheimer's disease and Parkinson's disease animal models. Recently, a beneficial effect of metformin in animal models of Huntington's disease (HD) has been strengthened by multiple reports. In this brief review, the findings associated with the effects of metformin in attenuating neurodegenerative diseases are discussed, focusing on HD-associated pathology and the potential underlying mechanisms highlighted by these studies. The mechanism of action of metformin is complex, and its therapeutic efficacy is therefore expected to be dependent on the disease context. The key metabolic pathways that are effectively affected by metformin, such as AMP-activated protein kinase activation, may be altered in the later decades of the human lifespan. In this regard, metformin may nonetheless be therapeutically useful for neurological diseases with early pathological onsets, such as HD.
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Affiliation(s)
- Bor Luen Tang
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University Health System, Singapore 117596, Singapore.,NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Medical Drive, Singapore 119077, Singapore
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Stelmashook EV, Chetverikov NS, Golyshev SA, Genrikhs EE, Isaev NK. Thymoquinone Induces Mitochondrial Damage and Death of Cerebellar Granule Neurons. BIOCHEMISTRY (MOSCOW) 2020; 85:205-212. [PMID: 32093596 DOI: 10.1134/s0006297920020078] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Thymoquinone (TQ) exhibits a wide spectrum of biological activities. Most studies on the neurotoxic action of TQ have been carried out in cancer cell lines. Here, we studied the toxic effect of TQ in primary neuronal cultures in vitro. Incubation with 0.04-0.05 mM TQ for 24 h induced the death of cultured cerebellar granule neurons (CGNs) in a dose-dependent manner. Neuronal death was preceded by an increase in the reactive oxygen species (ROS) generation, as demonstrated using CellROX Green and MitoSOX Red. Confocal and electron microscopy showed that incubation with 0.05 mM TQ for 5 h induced changes in the intracellular localization of mitochondria and mitochondria hypertrophy and cell swelling. The antioxidant N-acetyl-L-cysteine (2 mM) protected CGNs from the toxic action of TQ. Taken together, these facts suggest that TQ is toxic for normal neurons, while ROS-induced changes in the mitochondria can be one of the major causes of the TQ-induced neuronal damage and death.
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Affiliation(s)
| | - N S Chetverikov
- Lomonosov Moscow State University, Biological Faculty, Moscow, 119234, Russia
| | - S A Golyshev
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - E E Genrikhs
- Research Center of Neurology, Moscow, 125367, Russia
| | - N K Isaev
- Research Center of Neurology, Moscow, 125367, Russia. .,Lomonosov Moscow State University, Biological Faculty, Moscow, 119234, Russia
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Isaev NK, Chetverikov NS, Stelmashook EV, Genrikhs EE, Khaspekov LG, Illarioshkin SN. Thymoquinone as a Potential Neuroprotector in Acute and Chronic Forms of Cerebral Pathology. BIOCHEMISTRY (MOSCOW) 2020; 85:167-176. [PMID: 32093593 DOI: 10.1134/s0006297920020042] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Thymoquinone is one of the main active components of the essential oil from black cumin (Nigella sativa) seeds. Thymoquinone exhibits a wide range of pharmacological activities, including neuroprotective action demonstrated in the models of brain ischemia/reperfusion, Alzheimer's and Parkinson's diseases, and traumatic brain injury. The neuroprotective effect of thymoquinone is mediated via inhibition of lipid peroxidation, downregulation of proinflammatory cytokines, maintenance of mitochondrial membrane potential, and prevention of apoptosis through inhibition of caspases-3, -8, and -9. Thymoquinone-based mitochondria-targeted antioxidants are accumulated in the mitochondria and exhibit neuroprotective properties in nanomolar concentrations. Thymoquinone reduces the negative effects of acute and chronic forms of brain pathologies. The mechanisms of the pharmacological action of thymoquinone and its chemical derivatives require more comprehensive studying. In this paper, we formulated the prospects of application of thymoquinone and thymoquinone-based drugs in the therapy of neurodegenerative diseases.
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Affiliation(s)
- N K Isaev
- Research Center of Neurology, Moscow, 125367, Russia. .,Lomonosov Moscow State University, Faculty of Biology, Moscow, 119991, Russia
| | - N S Chetverikov
- Lomonosov Moscow State University, Faculty of Biology, Moscow, 119991, Russia
| | | | - E E Genrikhs
- Research Center of Neurology, Moscow, 125367, Russia
| | - L G Khaspekov
- Research Center of Neurology, Moscow, 125367, Russia.
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Meshkani SE, Mahdian D, Abbaszadeh-Goudarzi K, Abroudi M, Dadashizadeh G, Lalau JD, De Broe ME, Hosseinzadeh H. Metformin as a protective agent against natural or chemical toxicities: a comprehensive review on drug repositioning. J Endocrinol Invest 2020; 43:1-19. [PMID: 31098946 DOI: 10.1007/s40618-019-01060-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Accepted: 05/07/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Metformin is the first prescribed drug for hyperglycemia in type 2 diabetes mellitus. Mainly by activating AMPK pathway, this drug exerts various functions that among them protective effects are of the interest. PURPOSE Herein, we aimed to gather data about the protective impacts of metformin against various natural or chemical toxicities. RESULTS An extensive search among PubMed, Scopus, and Google Scholar was conducted by keywords related to protection, toxicity, natural and chemical toxins and, metformin. Our literature review showed metformin alongside its anti-hyperglycemic effect has a wide range of anti-toxic effects against anti-tumour and routine drugs, natural and chemical toxins, herbicides and, heavy metals. CONCLUSION It is evident that metformin is a potent drug against the toxicity of a broad spectrum of natural, chemical toxic agents which is proved by a vast number of studies. Metformin mainly through AMPK axis can protect different organs against toxicities. Moreover, metformin preserves DNA integrity and can be an option for adjuvant therapy to ameliorate side effect of other therapeutics.
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Affiliation(s)
- S E Meshkani
- Cellular and Molecular Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - D Mahdian
- Cellular and Molecular Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran
- Department of Pharmacology, School of Medicine, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - K Abbaszadeh-Goudarzi
- Cellular and Molecular Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran
- Department of Biochemistry, School of Medicine, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - M Abroudi
- Cellular and Molecular Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - G Dadashizadeh
- Cellular and Molecular Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - J-D Lalau
- Department of Endocrinology, Université de Picardie Jules Verne, Amiens, France
| | - M E De Broe
- Department of Biomedical Sciences, Universiteit Antwerpen, Antwerp, Belgium
| | - H Hosseinzadeh
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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Zhu N, Ruan J, Yang X, Huang Y, Jiang Y, Wang Y, Cai D, Geng Y, Fang M. Triptolide improves spinal cord injury by promoting autophagy and inhibiting apoptosis. Cell Biol Int 2019; 44:785-794. [PMID: 31774600 DOI: 10.1002/cbin.11273] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 11/23/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Ning Zhu
- Hebei North University Zhangjiakou Hebei 075000 China
- Department of Orthopedics Taizhou Municipal Hospital Taizhou Zhejiang 318000 China
| | - Jianwei Ruan
- Hebei North University Zhangjiakou Hebei 075000 China
- Department of Orthopedics Taizhou Municipal Hospital Taizhou Zhejiang 318000 China
| | - Xinming Yang
- Hebei North University Zhangjiakou Hebei 075000 China
- Department of Orthopaedics First Affiliated Hospital of Hebei North University Zhangjiakou Hebei 075061 China
| | - Yang Huang
- Department of Orthopedics Taizhou Municipal Hospital Taizhou Zhejiang 318000 China
| | - Yuting Jiang
- Institute of Neuroscience Zhejiang University School of Medicine Hangzhou 310058 China
| | - Yucheng Wang
- Department of Orthopedics Taizhou Municipal Hospital Taizhou Zhejiang 318000 China
| | - Danyang Cai
- Department of Orthopedics Taizhou Municipal Hospital Taizhou Zhejiang 318000 China
| | - Yu Geng
- Department of Neurology Zhejiang Provincial People's Hospital Hangzhou Zhejiang 310014 China
| | - Marong Fang
- Institute of Neuroscience Zhejiang University School of Medicine Hangzhou 310058 China
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Role of Oxidative Stress, MAPKinase and Apoptosis Pathways in the Protective Effects of Thymoquinone Against Acrylamide-Induced Central Nervous System Toxicity in Rat. Neurochem Res 2019; 45:254-267. [PMID: 31728856 DOI: 10.1007/s11064-019-02908-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 10/28/2019] [Accepted: 11/08/2019] [Indexed: 12/24/2022]
Abstract
The present study evaluated biochemical endpoints characterizing acrylamide (ACR) neurotoxicity in the cortex of rats, following the possible neuroprotective activity of thymoquinone (TQ), an active constituent of Nigella sativa. ACR (50 mg/kg, intraperitoneal [i.p.]) concurrently with TQ (2.5, 5 and 10 mg/kg, i.p.) for 11 days were administered to rats. As positive control, vitamin E was used. After 11 days of injections, narrow beam test (NBT) was performed. The levels of reduced glutathione (GSH) and malondialdehyde (MDA) were measured and Western blotting was done for mitogen-activated protein kinases (MAPKinases) and apoptosis pathways proteins in the rats' cortex. Additionally, Evans blue assay was done to evaluate the integrity of blood brain barrier (BBB). Administration of ACR significantly induced gait abnormalities. A significant decrease and increase in the levels of GSH and MDA was observed in the cortex of ACR-treated rats, respectively. The elevation in the levels of caspases 3 and 9, glial fibrillary acidic protein (GFAP) content, and Bax/Bcl-2, P-P38/P38 and P-JNK/JNK ratios accompanied by reduction in myelin basic protein (MBP) content and P-ERK/ERK ratio were noticed in the ACR group. TQ (5 mg/kg) improved gait abnormalities, and restored these changes. ACR affected the integrity of BBB while TQ was able to maintain the integrity of this barrier. TQ reversed the alterations in the protein contents of MAP kinase and apoptosis signaling pathways as well as MBP and GFAP contents, induced by ACR. It protected against ACR-mediated neurotoxicity, partly through its antioxidant and antiapoptotic properties.
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Karimi Z, Ghaffari M, Ezzati Nazhad Dolatabadi J, Dehghan P. The protective effect of thymoquinone on tert-butylhydroquinone induced cytotoxicity in human umbilical vein endothelial cells. Toxicol Res (Camb) 2019; 8:1050-1056. [PMID: 32968481 PMCID: PMC7488589 DOI: 10.1039/c9tx00235a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 11/07/2019] [Indexed: 12/17/2022] Open
Abstract
2-tert-Butyl-4-hydroquinone (TBHQ) is used for inhibition of oxidative rancidity in the food industry. However, this antioxidant can stimulate cytotoxicity in human umbilical vein endothelial cells (HUVECs). Thus, potential protective effects of thymoquinone (TQ) against TBHQ-induced cytotoxicity were investigated. Cytotoxicity was evaluated via MTT, flow cytometry, DAPI staining and DNA fragmentation methods. The obtained results revealed that treatment of HUVECs with TQ enhanced the cell viability rate and it had potential to reduce the cytotoxicity effect of TBHQ in cells. Also, in a combined regime of TQ and TBHQ, apoptosis was reduced compared to the cells treated with TBHQ (p < 0.05). Similarly, TQ had a protective effect on DNA and chromatin fragmentation of the cells treated with TBHQ. Finally, it can be concluded that TQ could be used as a protective agent against cytotoxicity induced by TBHQ in HUVECs.
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Affiliation(s)
- Zahra Karimi
- Immunology Research Center , Tabriz University of Medical Sciences , Tabriz , Iran
- Department of Food Science and Technology , Nutrition Research Center , Faculty of Nutrition and Food Sciences , Tabriz University of Medical Sciences , Tabriz , Iran . ; ; Tel: +98 41 33376229
- Student Research Committee , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Maryam Ghaffari
- Immunology Research Center , Tabriz University of Medical Sciences , Tabriz , Iran
| | | | - Parvin Dehghan
- Department of Food Science and Technology , Nutrition Research Center , Faculty of Nutrition and Food Sciences , Tabriz University of Medical Sciences , Tabriz , Iran . ; ; Tel: +98 41 33376229
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Elibol B, Terzioglu-Usak S, Beker M, Sahbaz C. Thymoquinone (TQ) demonstrates its neuroprotective effect via an anti-inflammatory action on the Aβ(1–42)-infused rat model of Alzheimer's disease. PSYCHIAT CLIN PSYCH 2019. [DOI: 10.1080/24750573.2019.1673945] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022] Open
Affiliation(s)
- Birsen Elibol
- Department of Medical Biology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Sule Terzioglu-Usak
- Department of Medical Biology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Merve Beker
- Department of Medical Biology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Cigdem Sahbaz
- Department of Psychiatry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
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Lawal SK, Adeniji AA, Sulaiman SO, Akajewole MM, Buhari MO, Osinubi AA. Comparative effects of glibenclamide, metformin and insulin on fetal pancreatic histology and maternal blood glucose in pregnant streptozotocin-induced diabetic rats. Afr Health Sci 2019; 19:2491-2504. [PMID: 32127822 PMCID: PMC7040257 DOI: 10.4314/ahs.v19i3.25] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Oral hypoglycemic agents use during pregnancy was assumed to cause fetal macrosomia and skeletal deformities, and maternal complications due to significant transfer across placenta or ineffective control of blood glucose. OBJECTIVE This study investigated effects of insulin, metformin and glibenclamide on maternal blood glucose; and fetal crown-rump length, gross malformation and pancreatic histology in pregnant streptozotocin-induced diabetic rats. METHODS Twenty-five pregnant rats of groups 1 to 5 as normal and diabetic controls; and diabetic treated with insulin, metformin and glibenclamide were used. Experimental GDM was induced using 45 and 35mg/Kgbw of intraperitoneal streptozotocin. RESULTS Metformin, Insulin and Glibenclamide significantly reduced maternal glucose by 140.6mg/dL, 103.2mg/dL and 98.54mg/dl; respectively and showed islets with regular interlobular ducts, islets with some irregular interlobular ducts, and islets with many irregular interlobular ducts in histological fetal pancreatic photomicrographs respectively. This depicts metformin having highest ameliorative effect. There were no significant differences in maternal and fetal body weights, maternal blood glucose between diabetic groups, and fetal gross examination. CONCLUSION At the doses used in this research, metformin and glibenclamide showed no adverse effects on maternal and fetal features in the treatment of GDM. Thus, they can be used as safe and inexpensive alternatives to insulin.
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Affiliation(s)
- Sodiq Kolawole Lawal
- Department of Anatomy, St. Francis University College of Health Sciences and Allied Sciences, Ifakara, Tanzania
- Discipline of Clinical Anatomy, Nelson Mandela School of Medicine, University of KwaZulu-Natal, 4001, Durban, South Africa
| | - Adeoluwa Akeem Adeniji
- Department of Anatomy, College of Medicine, University of Lagos, Idi-Araba, Lagos, Nigeria
| | - Sheu Oluwadare Sulaiman
- Department of Physiology, Kampala International University Western campus, Ishaka-Bushenyi, Uganda
| | - Mustapha Mas'ud Akajewole
- Department of Human Anatomy, School of Health and Medical Sciences, State University of Zanzibar, Zanzibar, Tanzania
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Zhao X, Zeng Z, Gaur U, Fang J, Peng T, Li S, Zheng W. Metformin protects PC12 cells and hippocampal neurons from H 2 O 2 -induced oxidative damage through activation of AMPK pathway. J Cell Physiol 2019; 234:16619-16629. [PMID: 30784077 DOI: 10.1002/jcp.28337] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 12/20/2018] [Accepted: 02/01/2019] [Indexed: 01/24/2023]
Abstract
Metformin, a first line anti type 2 diabetes drug, has recently been shown to extend lifespan in various species, and therefore, became the first antiaging drug in clinical trial. Oxidative stress due to excess reactive oxygen species (ROS) is considered to be an important factor in aging and related disease, such as Alzheimer's disease (AD). However, the antioxidative effects of metformin and its underlying mechanisms in neuronal cells is not known. In the present study, we showed that metformin, in clinically relevant concentrations, protected neuronal PC12 cells from H2 O2 -induced cell death. Metformin significantly ameliorated cell death due to H2 O2 insult by restoring abnormal changes in nuclear morphology, intracellular ROS, lactate dehydrogenase, and mitochondrial membrane potential induced by H2 O2 . Hoechst staining assay and flow cytometry analysis revealed that metformin significantly reduced the apoptosis in PC12 cells exposed to H2 O2 . Western blot analysis further demonstrated that metformin stimulated the phosphorylation and activation of AMP-activated protein kinase (AMPK) in PC12 cells, while application of AMPK inhibitor compound C, or knockdown of the expression of AMPK by specific small interfering RNA or short hairpin RNA blocked the protective effect of metformin. Similar results were obtained in primary cultured hippocampal neurons. Taken together, these results indicated that metformin is able to protect neuronal cells from oxidative injury, at least in part, via the activation of AMPK. As metformin is comparatively cheaper with much less side effects in clinic, our findings support its potential to be a drug for prevention and treatment of aging and aging-related diseases.
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Affiliation(s)
- Xia Zhao
- Center of Reproduction, Development & Aging, Faculty of Health Sciences, University of Macau, Taipa, Macau, China
| | - Zhiwen Zeng
- Center of Reproduction, Development & Aging, Faculty of Health Sciences, University of Macau, Taipa, Macau, China
| | - Uma Gaur
- Center of Reproduction, Development & Aging, Faculty of Health Sciences, University of Macau, Taipa, Macau, China
| | - Jiankang Fang
- Center of Reproduction, Development & Aging, Faculty of Health Sciences, University of Macau, Taipa, Macau, China
| | - Tangming Peng
- Center of Reproduction, Development & Aging, Faculty of Health Sciences, University of Macau, Taipa, Macau, China.,Department of Neurosurgery, Affiliated Hospital of Southwest Medical University, China
| | - Shuai Li
- Center of Reproduction, Development & Aging, Faculty of Health Sciences, University of Macau, Taipa, Macau, China
| | - Wenhua Zheng
- Center of Reproduction, Development & Aging, Faculty of Health Sciences, University of Macau, Taipa, Macau, China
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Fanoudi S, Alavi MS, Hosseini M, Sadeghnia HR. Nigella sativa and thymoquinone attenuate oxidative stress and cognitive impairment following cerebral hypoperfusion in rats. Metab Brain Dis 2019; 34:1001-1010. [PMID: 31016464 DOI: 10.1007/s11011-019-00394-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Accepted: 02/04/2019] [Indexed: 11/28/2022]
Abstract
Nigella sativa, a plant widely used in traditional medicine, possesses anti-inflammatory, antioxidant and neuroprotective properties. In the present study, we investigated the effect of hydroalcoholic extract of N. sativa seeds (NSE) and its active constituent, thymoquinone (TQ), on learning and memory deficits, hippocampal acetylcholine esterase (AChE) activity, and markers of redox status, mainly lipid peroxidation and superoxide dismutase (SOD) activity following cerebral hypoperfusion in rats. Cerebral hypoperfusion was induced by permanent occlusion of bilateral common carotid arteries (2VO). Male Wistar rats were administered either a vehicle (sham group: 10 ml/kg/day, ip), NSE (100, 200, and 400 mg/kg/day, ip), TQ (10, 20, and 40 mg/kg/day, ip), or donepezil (5 mg/kg/day, ip) for 10 days (three days before and seven days after ligation). Spatial learning and memory deficits were investigated using the Morris water maze (MWM) task. 2VO produced significant learning and memory deficits as evidenced by increased latency time to reach the hidden platform, increased swimming time, and decreased time spent in the target quadrant in the probe trial in the MWM task. There was also a significant increase in the lipid peroxidation level and AChE activity, and a significant decrease in SOD activity in the hippocampal portion of hypoperfused rats, as compared with the sham group. Treatment with NSE (400 mg/kg/day; p < 0.001) and TQ (40 mg/kg/day; p < 0.001), as well as donepezil significantly prevented learning and memory impairments and alleviated changes in the hippocampal lipid peroxide level and SOD and AChE activities in this model. In conclusion, our data suggest that N. sativa and thymoquinone have a beneficial role in cerebrovascular insufficiency states and dementia.
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Affiliation(s)
- Sahar Fanoudi
- Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohaddeseh S Alavi
- Division of Neurocognitive Sciences, Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahmoud Hosseini
- Division of Neurocognitive Sciences, Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamid R Sadeghnia
- Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran.
- Division of Neurocognitive Sciences, Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
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40
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Li LX, Liu MY, Jiang X, Xia ZH, Wang YX, An D, Wang HG, Heng B, Liu YQ. Metformin inhibits Aβ 25-35 -induced apoptotic cell death in SH-SY5Y cells. Basic Clin Pharmacol Toxicol 2019; 125:439-449. [PMID: 31220411 DOI: 10.1111/bcpt.13279] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 06/16/2019] [Indexed: 12/25/2022]
Abstract
Metformin, a first-line drug for type-2 diabetes, plays a potentially protective role in preventing Alzheimer's disease (AD), but its underlying mechanism is unclear. In this study, Aβ25-35 -treated SH-SY5Y cells were used as a cell model of AD to investigate the neuroprotective effect of metformin, as well as its underlying mechanisms. We found that metformin decreased the cell apoptosis rate and death, ratio of Bcl-2/Bax, and expression of NR2A and NR2B, and increased the expression of LC3 in Aβ25-35 -treated SH-SY5Y cells. Metformin also reduced intracellular and extracellular Glu concentrations, as well as the intracellular concentration of Ca2+ and ROS in Aβ25-35 -treated SH-SY5Y cells. These findings suggest that metformin inhibits Aβ25-35 -treated SH-SY5Y cell death by inhibiting apoptosis, decreasing intracellular Ca2+ and ROS by reducing neurotoxicity of excitatory amino acids, and by possibly reversing autophagy disorder via regulating autophagy process.
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Affiliation(s)
- Li-Xia Li
- Department of Zoology and Developmental Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Meng-Yu Liu
- Department of Zoology and Developmental Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Xue Jiang
- Department of Zoology and Developmental Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Zhen-Hong Xia
- Department of Zoology and Developmental Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Yu-Xiang Wang
- Department of Zoology and Developmental Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Di An
- Department of Zoology and Developmental Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Hong-Gang Wang
- Department of Zoology and Developmental Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Bin Heng
- Department of Zoology and Developmental Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Yan-Qiang Liu
- Department of Zoology and Developmental Biology, College of Life Sciences, Nankai University, Tianjin, China
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41
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Cheki M, Ghasemi MS, Rezaei Rashnoudi A, Erfani Majd N. Metformin attenuates cisplatin-induced genotoxicity and apoptosis in rat bone marrow cells. Drug Chem Toxicol 2019; 44:386-393. [PMID: 31072151 DOI: 10.1080/01480545.2019.1609024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Metformin is widely used as an oral hypoglycemic drug in the management of type 2 diabetes mellitus. This study evaluated the possible protective effects of metformin against cisplatin-induced genotoxicity and apoptosis in rat bone marrow cells. Two different doses of metformin (50 and 100 mg/kg b.w.) were administered orally to experimental animals for seven consecutive days. On the seventh day, the rats were exposed to cisplatin (5 mg/kg, i.p.) 1 h after the last oral metformin administration. Rats in the control group were treated orally with 10 ml/kg PBS for 7 consecutive days and a single intraperitoneal injection of saline (0.9%) on the 7th day. The antagonistic effects of metformin against cisplatin were evaluated using micronucleus assay, reactive oxygen species (ROS) level analysis, hematological analysis, and flow cytometry. Treatment with 50 and 100 mg/kg metformin before cisplatin injection produced a significant reduction in the frequencies of micronucleated polychromatic erythrocytes (MnPCEs) and micronucleated normochromatic erythrocytes (MnNCEs) 24 h after cisplatin treatment with a corresponding increase in the PCE/(PCE + NCE) ratio. Moreover, metformin markedly elevated the levels of both red and white blood cells in peripheral blood and decreased the percentage of apoptotic cells and the ROS level in bone marrow cells of rats treated with cisplatin. The data suggest that metformin has potential chemoprotective properties in rat bone marrow after cisplatin treatment, which support its candidature as a potential chemoprotective agent for cancer patients undergoing chemotherapy.
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Affiliation(s)
- Mohsen Cheki
- Cellular and Molecular Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad Sadegh Ghasemi
- Cellular and Molecular Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | | | - Naeem Erfani Majd
- Department of Basic Sciences, Histology Section, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
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Keshavarzi S, Kermanshahi S, Karami L, Motaghinejad M, Motevalian M, Sadr S. Protective role of metformin against methamphetamine induced anxiety, depression, cognition impairment and neurodegeneration in rat: The role of CREB/BDNF and Akt/GSK3 signaling pathways. Neurotoxicology 2019; 72:74-84. [PMID: 30742852 DOI: 10.1016/j.neuro.2019.02.004] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 02/02/2019] [Accepted: 02/05/2019] [Indexed: 11/18/2022]
Abstract
BACKGROUND Methamphetamine is a neuro-stimulant with neurodegenerative effects, and ambiguous mechanism of action. Metformin is an antidiabetic agent with neuroprotective properties but not fully understood mechanisms. The present study investigated the molecular basis of metformin neuroprotection against methamphetamine-induced neurodegeneration. BRIEF METHOD Sixty adult male rats were randomly divided into six groups: group 1 (received normal saline), group 2 (received 10 mg/kg of methamphetamine) and groups 3, 4, 5 and 6 [received methamphetamine (10 mg/kg) plus metformin (50, 75, 100 and 150 mg/kg) respectively]. Elevated Plus Maze (EPM), Open Field Test (OFT), Forced Swim Test (FST), Tail Suspension Test (TST) and Morris Water Maze (MWM) were used to assess the level of anxiety, depression and cognition in experimental animals. Also animals' hippocampus were isolated and oxidative stress and inflammatory parameters and expression of total and phosphorylated forms of cAMP response element binding (CREB), brain-derived neurotrophic factor (BDNF), protein kinase B (Akt) and glycogen synthase kinase 3 (GSK3) proteins were evaluated by ELISA method. RESULTS According to the data obtained, methamphetamine caused significant depression, anxiety, motor activity disturbances and cognition impairment in experimental animals. Metformin, in all used doses, decreased methamphetamine induced behavioral disturbances. Also chronic administration of methamphetamine could increase malondialdehyde (MDA), tumor necrosis factor-Alpha (TNF-α) and interleukine-1 beta (IL-1β) in rats, while caused reduction of superoxide dismutase (SOD), glutathione peroxidase (GPx) and glutathione reductase (GR) activities. Metformin, especially in high doses, could prevent these malicious effects of methamphetamine. Also Metformin could activate CREB (both forms), BDNF and Akt (both forms) proteins' expression and inhibited GSK3 (both forms) protein expression in methamphetamine treated rats. SIGNIFICANCE According to obtained data, metformin could protect the brain against methamphetamine-induced neurodegeneration probably by mediation of CREB/BDNF or Akt/GSK3 signaling pathways. These data suggested that CREB/BDNF or Akt/GSK3 signaling pathways may have a critical role in methamphetamine induced neurotoxicity and/or neuroprotective effects of metformin.
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Affiliation(s)
- Saghar Keshavarzi
- Research Center for Addiction and Risky Behaviors (ReCARB), Iran Psychiatric Center, Iran University of Medical Sciences, Tehran, Iran
| | - Sareh Kermanshahi
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Chemistry, Pharmaceutical Sciences Branch, Islamic Azad University (IUAPS), Tehran, Iran
| | - Leila Karami
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Chemistry, Pharmaceutical Sciences Branch, Islamic Azad University (IUAPS), Tehran, Iran
| | - Majid Motaghinejad
- Research Center for Addiction and Risky Behaviors (ReCARB), Iran Psychiatric Center, Iran University of Medical Sciences, Tehran, Iran.
| | - Manijeh Motevalian
- Department of Pharmacology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Samira Sadr
- Research and Development Department, Parsian-Exir-Aria pharmaceutical Company, Tehran, Iran
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43
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Kassab RB, El-Hennamy RE. The role of thymoquinone as a potent antioxidant in ameliorating the neurotoxic effect of sodium arsenate in female rat. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.ejbas.2017.07.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Rami B. Kassab
- Zoology Department, Faculty of Science, Helwan University, Cairo, Egypt
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44
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Antidotal effects of thymoquinone against neurotoxic agents. Interdiscip Toxicol 2019; 11:122-128. [PMID: 31719783 PMCID: PMC6829686 DOI: 10.2478/intox-2018-0008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 01/23/2018] [Indexed: 11/22/2022] Open
Abstract
Several plants which contain the active component thymoquinone (TQ) have been traditionally used in herbal medicine to treat various diseases. Several studies indicated the protective effects of TQ against neurotoxic agents. The present study was aimed to highlight the protective effects of TQ against neurotoxic agents. For this reason, the literature from 1998 to 2017 regarding the protective effects of TQ against neurotoxic agents and their involvement mechanisms has been studied. The present review suggests the protective effects of TQ against neurotoxic agents in experimental models. More clinical trial studies are however needed to confirm the antidotal effects of TQ in human intoxication.
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45
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Rukavishnikov GV, Kibitov AO, Mazo GE, Neznanov NG. [Genetic comorbidity of depression and somatic disorders]. Zh Nevrol Psikhiatr Im S S Korsakova 2019; 119:89-96. [PMID: 30778038 DOI: 10.17116/jnevro201911901189] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The aim of our review was to evaluate the perspectives of new therapeutic approaches in comorbid depressive and somatic disorders based on common pathological mechanisms and their genetic risk factors. Literature analysis showed that depression was a complex heterogeneous condition associated with significant prevalence of metabolic, cardiovascular and immune disturbances. The understanding of common molecular mechanisms of risks and course of abovementioned disorders could provide a new strategy for early diagnosis and therapeutic optimization and give the opportunity of 'targeted' approach to different pathological elements.
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Affiliation(s)
- G V Rukavishnikov
- Bekhterev National Medical Research Center of Psychiatry and Neurology, St-Petersburg, Russia
| | - A O Kibitov
- Serbsky National Medical Research Center of Psychiatry and Neurology, Moscow, Russia
| | - G E Mazo
- Bekhterev National Medical Research Center of Psychiatry and Neurology, St-Petersburg, Russia
| | - N G Neznanov
- Bekhterev National Medical Research Center of Psychiatry and Neurology, St-Petersburg, Russia; Pavlov First St-Petersburg State Medical University, St-Petersburg, Russia
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46
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Tabeshpour J, Mehri S, Abnous K, Hosseinzadeh H. Neuroprotective Effects of Thymoquinone in Acrylamide-Induced Peripheral Nervous System Toxicity Through MAPKinase and Apoptosis Pathways in Rat. Neurochem Res 2019; 44:1101-1112. [PMID: 30725239 DOI: 10.1007/s11064-019-02741-4] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 01/23/2019] [Accepted: 01/24/2019] [Indexed: 12/16/2022]
Abstract
Acrylamide (ACR) is extensively used in industrial areas and has been demonstrated to induce neurotoxicity via oxidative stress and apoptosis. In this study, we assessed the probable protective effects of thymoquinone (TQ), an active constituent of Nigella sativa, against ACR-induced neurotoxicity. ACR (50 mg/kg, i.p., for 11 days) and TQ (2.5, 5 and 10 mg/kg, i.p., for 11 days) were administered to rats. On 12th day, gait score was examined and rats were sacrificed. Malondialdehyde (MDA) and reduced glutathione (GSH) contents were determined in sciatic nerve. Furthermore, western blotting was conducted. The exposure of rats to ACR caused severe gait disabilities. The MDA and GSH contents were increased and decreased, respectively. ACR decreased P-ERK/ERK ratio and myelin basic protein (MBP) content, but significantly increased P-JNK/JNK, P-P38/P38, Bax/Bcl-2 ratios and caspase 3 and 9 levels. Concurrently administration of TQ (5 and 10 mg/kg) with ACR, prevented gait abnormalities and meaningfully reduced MDA and elevated the GSH contents. Furthermore, TQ (5 mg/kg) elevated the P-ERK/ERK ratio and MBP content while reduced the P-JNK/JNK, P-P38/P38 ratios and apoptotic markers. MAP kinase and apoptosis signaling pathways were involved in ACR-induced neurotoxicity in rat sciatic nerve and TQ significantly reduced ACR neurotoxicity. TQ afforded neuroprotection, in part, due to its anti-oxidative stress and anti-apoptotic mechanisms.
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Affiliation(s)
- Jamshid Tabeshpour
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Soghra Mehri
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.,Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Khalil Abnous
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Hosseinzadeh
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran. .,Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.
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Abstract
Our goal was to examine whether in utero exposure to alcohol impaired reactivity of cerebral arterioles during development. We fed Sprague-Dawley dams a liquid diet with or without alcohol (3% ethanol) for the duration of pregnancy (21-23 days). Around 4-6 weeks after birth, we examined reactivity of cerebral arterioles to eNOS- (ADP) and nNOS-dependent (NMDA) agonists in the offspring. We found that in utero exposure to alcohol attenuated responses of cerebral arterioles to ADP and NMDA, but not to nitroglycerin in rats exposed to alcohol in utero. L-NMMA reduced responses to agonists in control rats, but not in rats exposed to alcohol in utero. Treatment of dams with apocynin for the duration of pregnancy rescued the impairment in reactivity to ADP and NMDA in the offspring. Protein expression of NOX-2 and NOX-4 was increased in alcohol rats compared to control rats. We also found an increase in superoxide levels in the cortex of rats exposed to alcohol in utero. Our findings suggest that in utero exposure to alcohol impairs eNOS and nNOS reactivity of cerebral arterioles via a chronic increase in oxidative stress.
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Affiliation(s)
- Sergio G Cananzi
- 1 Department of Cell Biology and Anatomy, and the Center for Cardiovascular Diseases and Sciences, Louisiana State University Health Science Center-Shreveport, Shreveport, LA, USA
| | - William G Mayhan
- 2 Division of Basic Biomedical Sciences, Sanford School of Medicine, University of South Dakota, Vermillion, SD, USA
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48
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Saito M, Saito M, Das BC. Involvement of AMP-activated protein kinase in neuroinflammation and neurodegeneration in the adult and developing brain. Int J Dev Neurosci 2019; 77:48-59. [PMID: 30707928 DOI: 10.1016/j.ijdevneu.2019.01.007] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 12/29/2018] [Accepted: 01/28/2019] [Indexed: 02/07/2023] Open
Abstract
Microglial activation followed by neuroinflammation is a defense mechanism of the brain to eliminate harmful endogenous and exogenous materials including pathogens and damaged tissues, while excessive or chronic neuroinflammation may cause or exacerbate neurodegeneration observed in brain injuries and neurodegenerative diseases. Depending on conditions/environments during activation, microglia acquire distinct phenotypes, such as pro-inflammatory, anti-inflammatory, and disease-associated phenotypes, and show their ability to phagocytose various objects and produce pro-and anti-inflammatory mediators. Prevention of excessive inflammation by regulating the microglia's pro/anti-inflammatory balance is important for alleviating progression of brain injuries and diseases. Among many factors involved in the regulation of microglial phenotypes, cellular energy status plays an important role. Adenosine monophosphate-activated protein kinase (AMPK), which serves as a master sensor and regulator of energy balance, is considered a candidate molecule. Accumulating evidence from adult rodent studies indicates that AMPK activation promotes anti-inflammatory responses in microglia exposed to danger signals or various stressors mainly through inhibition of the nuclear factor κB (NF-κB) signaling and activation of the nuclear factor erythroid-2-related factor-2 (Nrf2) pathway. However, AMPK activation in neurons exposed to stressors/insults may exacerbate neuronal damage if AMPK activation is excessive or prolonged. While AMPK affects microglial activation states and neuronal cell survival rates in both the adult and the developing brain, studies in the developing brain are still scarce, even though activated AMPK is highly expressed especially in the neonatal brain. More in depth studies in the developing brain are important, because neuroinflammation/neurodegeneration occurred during development can result in long-lasting brain damage.
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Affiliation(s)
- Mariko Saito
- Division of Neurochemistry, Nathan S. Kline Institute for Psychiatric Research, 140 Old Orangeburg, Orangeburg, NY, 10962, USA.,Department of Psychiatry, New York University Langone Medical Center, 550 First Avenue, New York, NY, 10016, USA
| | - Mitsuo Saito
- Division of Analytical Psychopharmacology, Nathan S. Kline Institute for Psychiatric Research, 140 Old Orangeburg, Orangeburg, NY, 10962, USA
| | - Bhaskar C Das
- Departments of Medicine and Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, 1468 Madison Avenue, Annenberg 19-201, New York, NY, 10029, USA
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49
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Alhibshi AH, Odawara A, Suzuki I. Neuroprotective efficacy of thymoquinone against amyloid beta-induced neurotoxicity in human induced pluripotent stem cell-derived cholinergic neurons. Biochem Biophys Rep 2019; 17:122-126. [PMID: 30623116 PMCID: PMC6317145 DOI: 10.1016/j.bbrep.2018.12.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 12/10/2018] [Accepted: 12/14/2018] [Indexed: 12/20/2022] Open
Abstract
The natural antioxidant Thymoquinone (TQ) is the most abundant ingredient in the curative plant Nigella sativa seed's oil. An extensive number of studies have revealed that TQ is the most active and most responsible component for the plant's pharmacological properties. It has been documented in several studies that TQ has a wide range of protective activities and many neuropharmacological attributes. Amyloid beta (Aβ) is the major role player peptide in the progression of Alzheimer's disease (AD). Our current study has been implemented to explore the protective possibilities of TQ on Aβ1–42 -induced neurotoxicity. To test TQ's effect we used cultured human induced pluripotent stem cell (hiPSC)-derived cholinergic neurons. The obtained results showed that Aβ1–42 caused cell death and apoptosis, which was efficiently attenuated by the co-treatment of TQ. Moreover, TQ restored the decrease in the intracellular antioxidant enzyme glutathione levels and inhibited the generation of reactive oxygen species induced by Aβ1–42. Furthermore, using the fluorescent dye FM1–43 we demonstrated that TQ was able to reduce synaptic toxicity caused by Aβ1–42. Thus, the findings of our study suggest that TQ holds a neuroprotective potential and could be a promising therapeutic agent to reduce the risk of developing AD and other disorders of the central nervous system. TQ protected hiPSC-derived cholinergic neurons against Aβ1–42 induced apoptosis. TQ restored reduced Glutathione level in hiPSC-derived cholinergic neurons. TQ protected hiPSC-derived cholinergic neurons against ROS generation induced by Aβ1–42. TQ attenuated Aβ1–42 – induced synaptic toxicity.
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Affiliation(s)
- A H Alhibshi
- Department of Neuroscience, Institute of Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O.Box 1982, Dammam 31441, Saudi Arabia
| | - A Odawara
- Department of Electronics, Graduate School of Engineering, Tohoku Institute of Technology, 35-1 Yagiyama Kasumicho, Taihaku-ku, Sendai, Miyagi 192-0982, Japan
| | - I Suzuki
- Department of Electronics, Graduate School of Engineering, Tohoku Institute of Technology, 35-1 Yagiyama Kasumicho, Taihaku-ku, Sendai, Miyagi 192-0982, Japan
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50
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Üstün R, Oğuz EK, Şeker A, Korkaya H. Thymoquinone prevents cisplatin neurotoxicity in primary DRG neurons. Neurotoxicology 2018; 69:68-76. [DOI: 10.1016/j.neuro.2018.09.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 09/08/2018] [Accepted: 09/12/2018] [Indexed: 01/08/2023]
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