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Khalifa MKA, Abdel-Sattar SA, Amin OM, Kohaf NA, Zaky HS, Abd El-Fattah MA, Mohammed KHA, Badawi NM, Mansoor I, Eassa HA. Effectiveness of epigallocatechin gallate nanoparticles on the in-vivo treatment of Alzheimer's disease in a rat/mouse model: a systematic review. Daru 2024; 32:319-337. [PMID: 38079104 PMCID: PMC11087435 DOI: 10.1007/s40199-023-00494-8] [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: 08/01/2023] [Accepted: 11/15/2023] [Indexed: 05/12/2024] Open
Abstract
BACKGROUND Alzheimer's disease (AD) is a neurological disease that causes memory loss over time. Current therapies are limited and frequently inadequate. Epigallocatechin gallate (EGCG), has antioxidant, anti-inflammatory, antifibrosis, anti-remodeling and tissue-protective qualities that may be effective in treatment of different diseases, including AD. Because of nanoparticles' high surface area, they can enhance solubility, stability, pharmacokinetics and biodistribution, and diminish toxicities. Besides, lipid nanoparticles have a high binding affinity that can enhance the rate of drug transport across BBB. So, EGCG nanoparticles represent a promising treatment for AD. OBJECTIVES This systematic review sought to assess the efficacy of EGCG nanoparticles against AD in rat/mouse models. METHODS Study was conducted in accordance with PRISMA guidelines, and the protocol was registered in PROSPERO. Electronic databases were searched to discover relevant studies published up to October 2022. RESULTS Two studies met the inclusion criteria out of 1338 and were included in this systematic review. Collectively, the results indicate that EGCG has a significant potential for reducing AD pathology and improving cognitive deficits in rat/mouse models. The formulated particles were in the nanometer range, as indicated by TEM, with good particle size control and stability. EGCG nanoparticles showed superior pharmacokinetic characteristics and improved blood-brain barrier permeability, and increased brain bioavailability compared to free EGCG. Additionally, nanoEGCG were more effective in modulating oxidative stress than free formulation and decreased AChE in the cortex and hippocampus of AlCl3-treated rats. CONCLUSION This systematic analysis of the two studies included showed that EGCG nanoparticles are efficacious as a potential therapeutic intervention for AD in rat/mouse models. However, limited number of studies found indicates insufficient data in this research point that requires further investigation by experimental studies.
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Affiliation(s)
- Maha K A Khalifa
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, 11884, Egypt
| | - Somaia A Abdel-Sattar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy (Girls), Al-Azhar University, 11884, Cairo, Egypt
| | - Omnya M Amin
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, 11884, Egypt
| | - Neveen A Kohaf
- Department of Clinical Pharmacy, Faculty of Pharmacy, Al-Azhar University, Cairo, 11884, Egypt
| | - Heba S Zaky
- Department of Pharmacology and Toxicology, Faculty of Pharmacy (Girls), Al-Azhar University, 11884, Cairo, Egypt
| | - Marwa A Abd El-Fattah
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, 11884, Egypt
| | - Kamilia H A Mohammed
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, 11884, Egypt
| | - Noha M Badawi
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
| | | | - Heba A Eassa
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, 11884, Egypt.
- Department of Pharmaceutical Sciences, School of Pharmacy & Physician Assistant Studies, University of Saint Joseph, West Hartford, CT, 06117, USA.
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Bhounsule A, Bhatt LK. Protective effect of resveratrol and tannic acid combination on aluminium chloride induced neurotoxicity in rats. Nutr Neurosci 2024; 27:438-450. [PMID: 37144738 DOI: 10.1080/1028415x.2023.2208908] [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] [Indexed: 05/06/2023]
Abstract
OBJECTIVE Alzheimer's disease is a progressive neurodegenerative disease and one of the most common causes of dementia. Despite recent advancements, there exists an unmet need for a suitable therapeutic option. This study aimed to evaluate the protective effects of the combination of resveratrol (20 mg/kg/day p.o.) and tannic acid (50 mg/kg/day p.o.) to reduce aluminium trichloride-induced Alzheimer's disease in rats. METHODS Wistar rats weighing 150-200g were administered with aluminium chloride (100 mg/kg/day p.o.) for 90 days to induce neurodegeneration and Alzheimer's disease. Neurobehavioral changes were assessed using novel object recognition test, elevated plus maze test, and Morris water maze test. Histopathological studies were performed using H&E stain and Congo Red stains to check amyloid deposits. Further oxidative stress was measured in brain tissue. RESULTS Aluminium trichloride treated negative control group showed cognitive impairment in the Morris water maze test, novel object recognition test, and elevated plus maze test. Further, the negative control group showed significant oxidative stress, increase amyloid deposits, and severe histological changes. Treatment with the combination of resveratrol and tannic acid showed significant attenuation in cognitive impairment. The oxidative stress markers and amyloid plaque levels were significantly attenuated with the treatment. CONCLUSION The present study indicates the beneficial effects of resveratrol-tannic acid combination in AlCl3 induced neurotoxicity in rats.
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Affiliation(s)
- Anisha Bhounsule
- Department of Pharmacology, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai, India
| | - Lokesh Kumar Bhatt
- Department of Pharmacology, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai, India
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Abu-Elfotuh K, Hamdan AME, Mohamed SA, Bakr RO, Ahmed AH, Atwa AM, Hamdan AM, Alanzai AG, Alnahhas RK, Gowifel AMH, Salem MA. The potential anti-Alzheimer's activity of Oxalis corniculata Linn. Methanolic extract in experimental rats: Role of APOE4/LRP1, TLR4/NF-κβ/NLRP3, Wnt 3/β-catenin/GSK-3β, autophagy and apoptotic cues. JOURNAL OF ETHNOPHARMACOLOGY 2024; 324:117731. [PMID: 38218505 DOI: 10.1016/j.jep.2024.117731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/23/2023] [Accepted: 01/06/2024] [Indexed: 01/15/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Oxalis corniculata (O. corniculata) is a member of Oxalidaceae family, widely distributed in Asia, Europe, America, and Africa, used extensively as food and its traditional folkloric uses include management of epilepsy, gastric disorders, and neurodegenerative diseases, together with its use in enhancing health. Numerous pharmacological benefits of O. corniculata are linked to its anti-inflammatory and antioxidant abilities. One of the most prevalent neurodegenerative disorders is Alzheimer's disease (AD) in which neuroinflammation and oxidative stress are its main pathogenic processes. AIM OF THE STUDY Our research aimed to study the neuroprotective effect of the methanolic extract of Oxalis corniculata Linn. (O. corniculata ME), compared to selenium (Se) against AlCl3-induced AD. MATERIALS AND METHODS Forty male albino rats were allocated into four groups (Gps). Gp I a control group, the rest of the animals received AlCl3 (Gp II-Gp IV). Rats in Gp III and IV were treated with Se and O. corniculata ME, respectively. RESULTS The chemical profile of O. corniculata ME was studied using ultraperformance liquid chromatography-electrospray ionization-quadrupole time-of-flight mass spectrometry, allowing the tentative identification of sixty-six compounds, including organic acids, phenolics and others, cinnamic acid and its derivatives, fatty acids, and flavonoids. AlCl3 showed deterioration in short-term memory and brain histological pictures. Our findings showed that O. corniculata ME and selenium helped to combat oxidative stress produced by accumulation of AlCl3 in the brain and in prophylaxis against AD. Thus, Selenium (Se) and O. corniculata ME restored antioxidant defense, via enhancing Nrf2/HO-1 hub, hampered neuroinflammation, via TLR4/NF-κβ/NLRP3, along with dampening apoptosis, Aβ generation, tau hyperphosphorylation, BACE1, ApoE4 and LRP1 levels. Treatments also promoted autophagy and modulated Wnt 3/β-catenin/GSK3β cue. CONCLUSIONS It was noted that O. corniculata ME showed a notable ameliorative effect compared to Se on Nrf2/HO-1, TLR4/NF-κβ/NLRP3, APOE4/LRP1, Wnt 3/β-catenin/GSK-3β and PERK axes.
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Affiliation(s)
- Karema Abu-Elfotuh
- Clinical Pharmacy Department, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt; Al-Ayen Iraqi University, Thi-Qar, 64001, Iraq.
| | - Ahmed M E Hamdan
- Pharmacy Practice Department, Faculty of Pharmacy, University of Tabuk, Tabuk 74191, Saudi Arabia.
| | - Shaza A Mohamed
- Pharmacognosy and Medicinal Plants Department, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo 11754, Egypt.
| | - Riham O Bakr
- Department of Pharmacognosy, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA) University, Giza 11787, Egypt.
| | - Amal H Ahmed
- Pharmacognosy and Medicinal Plants Department, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo 11754, Egypt.
| | - Ahmed M Atwa
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Egyptian Russian University, Badr City, Cairo-Suez Road, Cairo 11829, Egypt.
| | - Amira M Hamdan
- Oceanography Department, Faculty of Science, Alexandria University, Alexandria 21511, Egypt.
| | | | | | - Ayah M H Gowifel
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Modern University for Technology and Information (MTI), Cairo 11571, Egypt.
| | - Maha A Salem
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Modern University for Technology and Information (MTI), Cairo 11571, Egypt.
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Nawar NF, Beltagy DM, Mohamed TM, Tousson E, El-Keey MM. Ameliorative anti-coagulant, anti-oxidative and anti-ferroptotic activities of nanocurcumin and donepezil on coagulation, oxidation and ferroptosis in Alzheimer's disease. Toxicol Res (Camb) 2024; 13:tfae054. [PMID: 38617712 PMCID: PMC11007267 DOI: 10.1093/toxres/tfae054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 03/12/2024] [Accepted: 04/01/2024] [Indexed: 04/16/2024] Open
Abstract
Alzheimer's disease (ad) is a neurological condition that worsens over time and is characterized by the buildup of amyloid (Aβ) plaques in the brain parenchyma. Neuroprotection and cholinesterase inhibition have been the two primary techniques used in the creation of medications to date. In ad, a novel sort of programmed cell death known as ferroptosis takes place along with iron buildup, lipid peroxidation, and glutathione deficiency. The objective of the current investigation was to examine the neuroprotective and anti-ferroptotic role of nanocurcumin and Donepezil against model of aluminum chloride AlCl3 and D-galactose induced ad. The experiment was performed on 70 rats divided into (G1: control, G2: NCMN, G3: Donepezil, G4: ad-model, G5: Donepezil co-treatment, G6: NCMN co-treatment and G7: NCMN+Donepezil co-treatment). Hematological parameters and biochemical investigations as oxidative stress, liver function, kidney function, iron profile and plasma fibrinogen were evaluated. Treatment with Nanocurcumin alone or in combination with Donepezil improved oxidative stress, liver functions, and kidney functions, improve iron profile and decreased plasma fibrinogen.
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Affiliation(s)
- Nagat F Nawar
- Division of Biochemistry, Department of Chemistry, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Doha M Beltagy
- Division of Biochemistry, Department of Chemistry, Faculty of Science, Damanhour University, Damanhour 22511, Egypt
| | - Tarek M Mohamed
- Division of Biochemistry, Department of Chemistry, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Ehab Tousson
- Department of Zoology, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Mai M El-Keey
- Division of Biochemistry, Department of Chemistry, Faculty of Science, Tanta University, Tanta 31527, Egypt
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Akhtar A, Singh S, Kaushik R, Awasthi R, Behl T. Types of memory, dementia, Alzheimer's disease, and their various pathological cascades as targets for potential pharmacological drugs. Ageing Res Rev 2024; 96:102289. [PMID: 38582379 DOI: 10.1016/j.arr.2024.102289] [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: 07/22/2023] [Revised: 03/30/2024] [Accepted: 03/30/2024] [Indexed: 04/08/2024]
Abstract
Alzheimer's disease (AD) is the most common type of dementia accounting for 90% of cases; however, frontotemporal dementia, vascular dementia, etc. prevails only in a minority of populations. The term dementia is defined as loss of memory which further takes several other categories of memories like working memory, spatial memory, fear memory, and long-term, and short-term memory into consideration. In this review, these memories have critically been elaborated based on context, duration, events, appearance, intensity, etc. The most important part and purpose of the review is the various pathological cascades as well as molecular levels of targets of AD, which have extracellular amyloid plaques and intracellular hyperphosphorylated tau protein as major disease hallmarks. There is another phenomenon that either leads to or arises from the above-mentioned hallmarks, such as oxidative stress, mitochondrial dysfunction, neuroinflammation, cholinergic dysfunction, and insulin resistance. Several potential drugs like antioxidants, anti-inflammatory drugs, acetylcholinesterase inhibitors, insulin mimetics or sensitizers, etc. studied in various previous preclinical or clinical reports were put as having the capacity to act on these pathological targets. Additionally, agents directly or indirectly targeting amyloid and tau were also discussed. This could be further investigated in future research.
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Affiliation(s)
- Ansab Akhtar
- Louisiana State University Health Sciences Center, Neuroscience Center of Excellence, School of Medicine, New Orleans, LA 70112, USA.
| | - Siddharth Singh
- School of Health Sciences & Technology, UPES University, Bidholi, Dehradun, Uttarakhand 248007, India
| | - Ravinder Kaushik
- School of Health Sciences & Technology, UPES University, Bidholi, Dehradun, Uttarakhand 248007, India
| | - Rajendra Awasthi
- School of Health Sciences & Technology, UPES University, Bidholi, Dehradun, Uttarakhand 248007, India
| | - Tapan Behl
- Amity School of Pharmaceutical Sciences, Amity University, Mohali, Punjab 140306, India
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Feng M, Zhou Q, Xie H, Liu C, Zheng M, Zhang S, Zhou S, Zhao J. Role of CD36 in central nervous system diseases. Neural Regen Res 2024; 19:512-518. [PMID: 37721278 PMCID: PMC10581564 DOI: 10.4103/1673-5374.380821] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 01/12/2023] [Accepted: 05/04/2023] [Indexed: 09/19/2023] Open
Abstract
CD36 is a highly glycosylated integral membrane protein that belongs to the scavenger receptor class B family and regulates the pathological progress of metabolic diseases. CD36 was recently found to be widely expressed in various cell types in the nervous system, including endothelial cells, pericytes, astrocytes, and microglia. CD36 mediates a number of regulatory processes, such as endothelial dysfunction, oxidative stress, mitochondrial dysfunction, and inflammatory responses, which are involved in many central nervous system diseases, such as stroke, Alzheimer's disease, Parkinson's disease, and spinal cord injury. CD36 antagonists can suppress CD36 expression or prevent CD36 binding to its ligand, thereby achieving inhibition of CD36-mediated pathways or functions. Here, we reviewed the mechanisms of action of CD36 antagonists, such as Salvianolic acid B, tanshinone IIA, curcumin, sulfosuccinimidyl oleate, antioxidants, and small-molecule compounds. Moreover, we predicted the structures of binding sites between CD36 and antagonists. These sites can provide targets for more efficient and safer CD36 antagonists for the treatment of central nervous system diseases.
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Affiliation(s)
- Min Feng
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Qiang Zhou
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Huimin Xie
- Department of Stomatology, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Chang Liu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Mengru Zheng
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Shuyu Zhang
- Medical College of Nantong University, Nantong, Jiangsu Province, China
| | - Songlin Zhou
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Jian Zhao
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
- Department of Orthopedic Oncology, Second Affiliated Hospital of Naval Medical University, Shanghai, China
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Liu Y, Zhao H, Yang Y, Liu Y, Ao CY, Zeng JM, Ban JQ, Li J. Mechanism by which HDAC3 regulates manganese induced H3K27ac in SH-SY5Y cells and intervention by curcumin. Arch Biochem Biophys 2024; 752:109878. [PMID: 38151197 DOI: 10.1016/j.abb.2023.109878] [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: 10/08/2023] [Revised: 12/18/2023] [Accepted: 12/20/2023] [Indexed: 12/29/2023]
Abstract
Long-term excessive exposure to manganese can impair neuronal function in the brain, but the underlying pathological mechanism remains unclear. Oxidative stress plays a central role in manganese-induced neurotoxicity. Numerous studies have established a strong link between abnormal histone acetylation levels and the onset of various diseases. Histone deacetylase inhibitors and activators, such as TSA and ITSA-1, are often used to investigate the intricate mechanisms of histone acetylation in disease. In addition, recent experiments have provided substantial evidence demonstrating that curcumin (Cur) can act as an epigenetic regulator. Given these findings, this study aims to investigate the mechanisms underlying oxidative damage in SH-SY5Y cells exposed to MnCl2·4H2O, with a particular focus on histone acetylation, and to assess the potential therapeutic efficacy of Cur. In this study, SH-SY5Y cells were exposed to manganese for 24 h, were treated with TSA or ITSA-1, and were treated with or without Cur. The results suggested that manganese exposure, which leads to increased expression of HDAC3, induced H3K27 hypoacetylation, inhibited the transcription of antioxidant genes, decreased antioxidant enzyme activities, and induced oxidative damage in cells. Pretreatment with an HDAC3 inhibitor (TSA) increased the acetylation of H3K27 and the transcription of antioxidant genes and thus slowed manganese exposure-induced cellular oxidative damage. In contrast, an HDAC3 activator (ITSA-1) partially increased manganese-induced cellular oxidative damage, while Cur prevented manganese-induced oxidative damage. In summary, these findings suggest that inhibiting H3K27ac is a possible mechanism for ameliorating manganese-induced damage to dopaminergic neurons and that Cur exerts a certain protective effect against manganese-induced damage to dopaminergic neurons.
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Affiliation(s)
- Ying Liu
- School of Public Heath, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou, 550025, China
| | - Hua Zhao
- School of Public Heath, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou, 550025, China
| | - Yue Yang
- Guiyang Stomatological Hospital, Guiyang, Guizhou, 550002, China
| | - Yan Liu
- School of Public Heath, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou, 550025, China
| | - Chun-Yan Ao
- School of Public Heath, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou, 550025, China
| | - Jia-Min Zeng
- School of Public Heath, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou, 550025, China
| | - Jia-Qi Ban
- School of Public Heath, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou, 550025, China.
| | - Jun Li
- School of Public Heath, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou, 550025, China.
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8
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Wang Y, Gong Q, Pan H, Wang X, Yan C. Gardenia jasminoides J. Ellis extract attenuates memory impairment in rats with Alzheimer's disease by suppressing NLRP3 inflammasome. Brain Res 2024; 1824:148687. [PMID: 38000495 DOI: 10.1016/j.brainres.2023.148687] [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: 09/18/2023] [Revised: 11/20/2023] [Accepted: 11/21/2023] [Indexed: 11/26/2023]
Abstract
Alzheimer's disease (AD) is characterized by degeneration of the central nervous system. Recently, many studies have emphasized the beneficial role of Gardenia jasminoides J. Ellis extract (GJ-4) in neuroprotection, which is considered a potential drug for treating AD. However, the mechanism underlying its neuroprotective effects is obscure. This research intended to analyze the effectiveness of GJ-4 to induce neuronal protective role on a rat model of neurotoxicity and probe the potential mechanism. An AD model was established by intraperitoneal injection of aluminum chloride (AlCl3). Then, AlCl3-induced rats were administered 25 mg/kg and 50 mg/kg of GJ-4 orally. This study indicated that GJ-4 (25 and 50 mg/kg) mitigated AD-like behaviors, as evidenced by enhanced ambulation frequency, rearing frequency, and time spent in the target quadrant and decreased grooming frequency, defecation frequency, and escape latency in AlCl3-challenged rats. Also, GJ-4 at 25 and 50 mg/kg exerted an anti-apoptosis effect in the hippocampus of AlCl3-treated rats. Furthermore, GJ-4 (25 and 50 mg/kg) exhibited an anti-inflammatory effect in the hippocampus by repressing the activation of NOD-like receptor thermal protein domain associated protein 3 (NLRP3) inflammasome, further inhibiting the activation of Caspase 1, ASC, IL-1β, and IL-18 in AD hippocampus. Altogether, GJ-4 mitigated AlCl3-triggered impairment of learning and memory in AD rats via repressing NLRP3 inflammasome.
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Affiliation(s)
- Yanbo Wang
- Department of Neurology, The Third Affiliated Hospital of Zhejiang Chinese Medicine University, Hangzhou 310000, Zhejiang Province, China
| | - Qingmei Gong
- Department of Neurology, The Third Affiliated Hospital of Zhejiang Chinese Medicine University, Hangzhou 310000, Zhejiang Province, China
| | - Haiyan Pan
- Department of Endocrinology, The Third Affiliated Hospital of Zhejiang Chinese Medicine University, Hangzhou 310000, Zhejiang Province, China
| | - Xiaowei Wang
- Department of Respiratory, The Third Affiliated Hospital of Zhejiang Chinese Medicine University, Hangzhou 310000, Zhejiang Province, China
| | - Ci Yan
- Departments of Psychiatry, Affiliated Mental Health Center, Zhejiang University School of Medicine, Hangzhou 310000, Zhejiang Province, China.
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Beltagy DM, Nawar NF, Mohamed TM, Tousson E, El-Keey MM. The synergistic effect of nanocurcumin and donepezil on Alzheimer's via PI3K/AKT/GSK-3β pathway modulating. Prostaglandins Other Lipid Mediat 2024; 170:106791. [PMID: 37918555 DOI: 10.1016/j.prostaglandins.2023.106791] [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: 09/14/2023] [Revised: 10/23/2023] [Accepted: 10/27/2023] [Indexed: 11/04/2023]
Abstract
Alzheimer's disease (AD) hallmarks include amyloid-βeta (Aβ) and tau proteins aggregates, neurite degeneration, microglial activation with cognitive impairment. Phosphatidylinositol-3-kinase/protein kinase B/Glycogen synthase kinase-3-beta (PI3K/AKT/GSK-3) pathway is essential for neuroprotection, cell survival and proliferation by blocking apoptosis. This study aimed to assess protective role of nanocurcumin (NCMN) as strong antioxidant and anti-inflammatory agent with elucidating its synergistic effects with Donepezil as acetylcholinesterase inhibitor on AD in rats via modulating PI3K/AKT/GSK-3β pathway. The experiment was performed on 70 male Wistar albino rats divided into seven groups (control, NCMN, Donepezil, AD-model, Donepezil co-treatment, NCMN only co-treatment, and NCMN+Donepezil combined treatment). Behavioral and biochemical investigations as cholinesterase activity, oxidative stress (malondialdehyde, reduced glutathione, nitric oxide, superoxidedismutase, and catalase), tumor necrosis factor-alpha, Tau, β-site amyloid precursor protein cleaving enzyme-1 (BACE-1), Phosphatase and tensin homolog (Pten), mitogen-activated protein kinase-1 (MAPK-1), Glycogen synthase kinase-3-beta (GSK-3β) and toll-like receptor-4 were evaluated. Treatment with NCMN improved memory, locomotion, neuronal differentiation by activating PI3K/AKT/GSK-3β pathway. These results were confirmed by histological studies in hippocampus.
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Affiliation(s)
- Doha M Beltagy
- Biochemistry Department, Faculty of Science, Damanhour University, Egypt.
| | - Nagat F Nawar
- Biochemistry Division, Chemistry Department, Faculty of Science, Tanta University, Egypt
| | - Tarek M Mohamed
- Biochemistry Division, Chemistry Department, Faculty of Science, Tanta University, Egypt
| | - Ehab Tousson
- Department of Zoology, Faculty of Science, Tanta University, Egypt
| | - Mai M El-Keey
- Biochemistry Division, Chemistry Department, Faculty of Science, Tanta University, Egypt
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10
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Sharma A, Ray A, Sathaye S, Singhal RS. A supercritical fluid co-extract of turmeric powder and dried coconut shreds shows neuroprotection against AlCl 3-induced Alzheimer's disease in rats through nose to brain delivery. Bioorg Chem 2024; 143:107046. [PMID: 38141332 DOI: 10.1016/j.bioorg.2023.107046] [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: 06/27/2023] [Revised: 12/06/2023] [Accepted: 12/16/2023] [Indexed: 12/25/2023]
Abstract
This study was aimed at investigating the neuroprotective potential of a co-extract obtained by supercritical fluid extraction (SFE) of turmeric powder and dried coconut shreds against aluminium chloride (AlCl3)-induced Alzheimer's disease (AD) in male Wistar rats. Fifty animals were allocated to five groups, which received saline (vehicle control, group 1), a combination of saline and aluminium chloride (AlCl3) (disease control, group 2), coconut oil (COO) (SFE extracted, treatment group 3), turmeric oleoresin (Cur) (SFE extracted, treatment group 4) and SFE co-extract of turmeric powder and coconut shreds (CurCOO) (treatment group 5). Animals were subjected to behavioural evaluation. In addition, the hippocampal section of the brain from all groups was subjected to biochemical, molecular and histopathological evaluations. The results showed CurCOO administered intranasally improved cognitive abilities, reversed histological alterations in the brain, reduced hippocampus inflammation studied through proinflammatory cytokine markers like TNF-α and IL-6 as compared to the disease control group. The impact of CurCOO on preventive neurodegeneration was also observed through a reduction in protein transcription factor NF-kB in the treated group 5 as compared to a disease control group. The effect of intranasal delivery of CurCOO on the neurons responsible for memory consolidation was evident from low acetylcholinesterase (AChE) enzyme activity in the treated groups with respect to AlCl3 induced group. Summarily, the results demonstrated intranasal delivery of CurCOO to show better efficacy than Cur and COO in preventing neurodegeneration associated with AlCl3 induced Alzheimer's disease.
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Affiliation(s)
- Abhinav Sharma
- Department of Food Engineering & Technology, Institute of Chemical Technology, Mumbai 400019, India
| | - Aratrika Ray
- Department of Food Engineering & Technology, Institute of Chemical Technology, Mumbai 400019, India
| | - Sadhana Sathaye
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Mumbai 400019, India
| | - Rekha S Singhal
- Department of Food Engineering & Technology, Institute of Chemical Technology, Mumbai 400019, India.
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11
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Singh S, Chib S, Akhtar MJ, Kumar B, Chawla PA, Bhatia R. Paradigms and Success Stories of Natural Products in Drug Discovery Against Neurodegenerative Disorders (NDDs). Curr Neuropharmacol 2024; 22:992-1015. [PMID: 36606589 PMCID: PMC10964107 DOI: 10.2174/1570159x21666230105110834] [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: 05/16/2022] [Revised: 10/17/2022] [Accepted: 10/19/2022] [Indexed: 01/07/2023] Open
Abstract
Neurodegenerative disorders (NDDs) are multifaceted complex disorders that have put a great health and economic burden around the globe nowadays. The multi-factorial nature of NDDs has presented a great challenge in drug discovery and continuous efforts are in progress in search of suitable therapeutic candidates. Nature has a great wealth of active principles in its lap that has cured the human population since ancient times. Natural products have revealed several benefits over conventional synthetic medications and scientists have shifted their vision towards exploring the therapeutic potentials of natural products in the past few years. The structural mimicking of natural compounds to endogenous ligands has presented them as a potential therapeutic candidate to prevent the development of NDDs. In the presented review, authors have summarized demographical facts about various NDDs including Alzheimer's disease (AD), Parkinson's disease (PD), Huntington's disease (HD) and various types of sclerosis in the brain. The significant findings of new active principles of natural origin along with their therapeutic potentials on NDDs have been included. Also, a description of clinical trials and patents on natural products has been enlisted in this compilation. Although natural products have shown promising success in drug discovery against NDDs, still their use is associated with several ethical issues which need to be solved in the upcoming time.
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Affiliation(s)
- Sukhwinder Singh
- Department of Pharmaceutical Chemistry and Analysis, ISF College of Pharmacy Moga, Punjab, 142001, India
| | - Shivani Chib
- Department of Pharmacology, ISF College of Pharmacy Moga, Punjab, 142001, India
| | - Md. Jawaid Akhtar
- Department of Pharmaceutical Chemistry, College of Pharmacy, National University of Science and Technology, PO620, PC 130 Azaiba, Bousher, Muscat, Oman
| | - Bhupinder Kumar
- Department of Pharmaceutical Chemistry and Analysis, ISF College of Pharmacy Moga, Punjab, 142001, India
- Department of Pharmaceutical Sciences, HNB Garhwal University, Chauras Campus, Srinagar, Garhwal, Uttarakhand, 246174, India
| | - Pooja A. Chawla
- Department of Pharmaceutical Chemistry and Analysis, ISF College of Pharmacy Moga, Punjab, 142001, India
| | - Rohit Bhatia
- Department of Pharmaceutical Chemistry and Analysis, ISF College of Pharmacy Moga, Punjab, 142001, India
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Chu J, Zhang W, Liu Y, Gong B, Ji W, Yin T, Gao C, Liangwen D, Hao M, Chen C, Zhuang J, Gao J, Yin Y. Biomaterials-based anti-inflammatory treatment strategies for Alzheimer's disease. Neural Regen Res 2024; 19:100-115. [PMID: 37488851 PMCID: PMC10479833 DOI: 10.4103/1673-5374.374137] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 02/28/2023] [Accepted: 03/28/2023] [Indexed: 07/26/2023] Open
Abstract
The current therapeutic drugs for Alzheimer's disease only improve symptoms, they do not delay disease progression. Therefore, there is an urgent need for new effective drugs. The underlying pathogenic factors of Alzheimer's disease are not clear, but neuroinflammation can link various hypotheses of Alzheimer's disease; hence, targeting neuroinflammation may be a new hope for Alzheimer's disease treatment. Inhibiting inflammation can restore neuronal function, promote neuroregeneration, reduce the pathological burden of Alzheimer's disease, and improve or even reverse symptoms of Alzheimer's disease. This review focuses on the relationship between inflammation and various pathological hypotheses of Alzheimer's disease; reports the mechanisms and characteristics of small-molecule drugs (e.g., nonsteroidal anti-inflammatory drugs, neurosteroids, and plant extracts); macromolecule drugs (e.g., peptides, proteins, and gene therapeutics); and nanocarriers (e.g., lipid-based nanoparticles, polymeric nanoparticles, nanoemulsions, and inorganic nanoparticles) in the treatment of Alzheimer's disease. The review also makes recommendations for the prospective development of anti-inflammatory strategies based on nanocarriers for the treatment of Alzheimer's disease.
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Affiliation(s)
- Jianjian Chu
- Department of Neurology, Second Affiliated Hospital (Shanghai Changzheng Hospital) of Naval Medical University, Shanghai, China
| | - Weicong Zhang
- School of Pharmacy, University College London, London, UK
| | - Yan Liu
- Department of Clinical Pharmacy, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine; Clinical Pharmacy Innovation Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Baofeng Gong
- Department of Neurology, Second Affiliated Hospital (Shanghai Changzheng Hospital) of Naval Medical University, Shanghai, China
| | - Wenbo Ji
- Department of Neurology, Second Affiliated Hospital (Shanghai Changzheng Hospital) of Naval Medical University, Shanghai, China
| | - Tong Yin
- Department of Neurology, Second Affiliated Hospital (Shanghai Changzheng Hospital) of Naval Medical University, Shanghai, China
| | - Chao Gao
- Department of Neurology, Second Affiliated Hospital (Shanghai Changzheng Hospital) of Naval Medical University, Shanghai, China
| | - Danqi Liangwen
- Department of Neurology, Second Affiliated Hospital (Shanghai Changzheng Hospital) of Naval Medical University, Shanghai, China
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Mengqi Hao
- Department of Neurology, Second Affiliated Hospital (Shanghai Changzheng Hospital) of Naval Medical University, Shanghai, China
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Cuimin Chen
- Changhai Clinical Research Unit, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
| | - Jianhua Zhuang
- Department of Neurology, Second Affiliated Hospital (Shanghai Changzheng Hospital) of Naval Medical University, Shanghai, China
| | - Jie Gao
- Changhai Clinical Research Unit, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
| | - You Yin
- Department of Neurology, Second Affiliated Hospital (Shanghai Changzheng Hospital) of Naval Medical University, Shanghai, China
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13
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Zhu J, Huang M, Liu C, Wang J, Zou L, Yang F, Zhu R. Curcumin protects against fenvalerate-induced neurotoxicity in zebrafish (Danio rerio) larvae through inhibition of oxidative stress. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 264:115484. [PMID: 37716069 DOI: 10.1016/j.ecoenv.2023.115484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 08/26/2023] [Accepted: 09/12/2023] [Indexed: 09/18/2023]
Abstract
Fenvalerate (FEN), a typical type II pyrethroid pesticide, is widely used in agriculture. FEN has been detected in the environment and human body. However, the neurotoxicity of FEN has not been well elucidated. This study aimed to explore the mechanisms underlying FEN-induced neurotoxicity using the zebrafish (Danio rerio) model. We also investigated whether curcumin (CUR), a polyphenol antioxidant that exhibits neuroprotective properties, can prevent FEN-induced neurotoxicity. Here, zebrafish embryos were exposed to 0, 3.5, 7 and 14 μg/L of FEN from 4 to 96 h post fertilization (hpf) and neurotoxicity was assessed. Our results showed that FEN decreased the survival rate, heart rate, body length and spontaneous movement, and increased malformation rate. FEN caused neurobehavioral alterations, including decreased swimming distance and velocity, movement time and clockwise rotation times. FEN also suppressed neurogenesis in transgenic HuC:egfp zebrafish, reduced cholinesterase activity and downregulated the expression of neurodevelopment related genes (elavl3, gfap, gap43 and mbp). In addition, FEN enhanced oxidative stress via excessive reactive oxygen species and antioxidant enzyme inhibition, then triggered apoptosis by upregulation of apoptotic genes (p53, bcl-2, bax and caspase 3). These adverse outcomes were alleviated by CUR, indicating that CUR mitigated FEN-induced neurotoxicity by inhibiting oxidative stress. Overall, this study revealed that CUR ameliorated FEN-induced neurotoxicity via its antioxidant, indicating a promising protection of CUR against environmental pollutant-induced developmental anomalies.
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Affiliation(s)
- Jiansheng Zhu
- Department of Public Health, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Mingtao Huang
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing 210004, PR China
| | - Chunlan Liu
- Jiangsu Health Vocational College, Nanjing 211800, PR China
| | - Jingyu Wang
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing 210004, PR China
| | - Li Zou
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing 210004, PR China
| | - Fan Yang
- Institute of Geriatrics, Affiliated Nantong Hospital of Shanghai University, The Sixth People's Hospital of Nantong, Nantong 226011, PR China.
| | - Renfei Zhu
- Department of Hepatobiliary Surgery, Nantong Third People's Hospital, Affiliated Nantong Hospital 3 of Nantong University, Nantong 226006, Jiangsu, PR China.
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14
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Garodia P, Hegde M, Kunnumakkara AB, Aggarwal BB. Curcumin, inflammation, and neurological disorders: How are they linked? Integr Med Res 2023; 12:100968. [PMID: 37664456 PMCID: PMC10469086 DOI: 10.1016/j.imr.2023.100968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 05/14/2023] [Accepted: 06/07/2023] [Indexed: 09/05/2023] Open
Abstract
Background Despite the extensive research in recent years, the current treatment modalities for neurological disorders are suboptimal. Curcumin, a polyphenol found in Curcuma genus, has been shown to mitigate the pathophysiology and clinical sequalae involved in neuroinflammation and neurodegenerative diseases. Methods We searched PubMed database for relevant publications on curcumin and its uses in treating neurological diseases. We also reviewed relevant clinical trials which appeared on searching PubMed database using 'Curcumin and clinical trials'. Results This review details the pleiotropic immunomodulatory functions and neuroprotective properties of curcumin, its derivatives and formulations in various preclinical and clinical investigations. The effects of curcumin on neurodegenerative diseases such as Alzheimer's disease (AD), amyotrophic lateral sclerosis (ALS), brain tumors, epilepsy, Huntington's disorder (HD), ischemia, Parkinson's disease (PD), multiple sclerosis (MS), and traumatic brain injury (TBI) with a major focus on associated signalling pathways have been thoroughly discussed. Conclusion This review demonstrates curcumin can suppress spinal neuroinflammation by modulating diverse astroglia mediated cascades, ensuring the treatment of neurological disorders.
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Affiliation(s)
| | - Mangala Hegde
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam, India
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15
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Sousa T, Moreira PI, Cardoso S. Current Advances in Mitochondrial Targeted Interventions in Alzheimer's Disease. Biomedicines 2023; 11:2331. [PMID: 37760774 PMCID: PMC10525414 DOI: 10.3390/biomedicines11092331] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/16/2023] [Accepted: 08/18/2023] [Indexed: 09/29/2023] Open
Abstract
Alzheimer's disease is the most prevalent neurodegenerative disorder and affects the lives not only of those who are diagnosed but also of their caregivers. Despite the enormous social, economic and political burden, AD remains a disease without an effective treatment and with several failed attempts to modify the disease course. The fact that AD clinical diagnosis is most often performed at a stage at which the underlying pathological events are in an advanced and conceivably irremediable state strongly hampers treatment attempts. This raises the awareness of the need to identify and characterize the early brain changes in AD, in order to identify possible novel therapeutic targets to circumvent AD's cascade of events. One of the most auspicious targets is mitochondria, powerful organelles found in nearly all cells of the body. A vast body of literature has shown that mitochondria from AD patients and model organisms of the disease differ from their non-AD counterparts. In view of this evidence, preserving and/or restoring mitochondria's health and function can represent the primary means to achieve advances to tackle AD. In this review, we will briefly assess and summarize the previous and latest evidence of mitochondria dysfunction in AD. A particular focus will be given to the recent updates and advances in the strategy options aimed to target faulty mitochondria in AD.
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Affiliation(s)
- Tiago Sousa
- Faculty of Medicine, University of Coimbra, 3000-370 Coimbra, Portugal;
| | - Paula I. Moreira
- CNC—Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal;
- CIBB—Center for Innovative Biomedicine and Biotechnology, University of Coimbra, 3004-504 Coimbra, Portugal
- Institute of Physiology, Faculty of Medicine, University of Coimbra, 3000-370 Coimbra, Portugal
| | - Susana Cardoso
- CNC—Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal;
- CIBB—Center for Innovative Biomedicine and Biotechnology, University of Coimbra, 3004-504 Coimbra, Portugal
- IIIUC—Institute for Interdisciplinary Research, University of Coimbra, 3030-789 Coimbra, Portugal
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16
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Yurchenko EA, Aminin DL. Advances in Cytoprotective Drug Discovery. Molecules 2023; 28:molecules28114510. [PMID: 37298986 DOI: 10.3390/molecules28114510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023] Open
Abstract
This Special Issue was announced as a platform for authors studying the isolation and identification of various natural products with cytoprotective effects and those studying cytoprotective synthetic compounds [...].
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Affiliation(s)
- Ekaterina A Yurchenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of Russian Academy of Sciences, pr. 100-letya Vladivostoku, 159, 690022 Vladivostok, Russia
| | - Dmitry L Aminin
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of Russian Academy of Sciences, pr. 100-letya Vladivostoku, 159, 690022 Vladivostok, Russia
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17
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Samman WA, Selim SM, El Fayoumi HM, El-Sayed NM, Mehanna ET, Hazem RM. Dapagliflozin Ameliorates Cognitive Impairment in Aluminum-Chloride-Induced Alzheimer's Disease via Modulation of AMPK/mTOR, Oxidative Stress and Glucose Metabolism. Pharmaceuticals (Basel) 2023; 16:ph16050753. [PMID: 37242536 DOI: 10.3390/ph16050753] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 05/02/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023] Open
Abstract
Alzheimer's disease (AD) is a progressive neurological illness characterized by memory loss and cognitive deterioration. Dapagliflozin was suggested to attenuate the memory impairment associated with AD; however, its mechanisms were not fully elucidated. This study aims to examine the possible mechanisms of the neuroprotective effects of dapagliflozin against aluminum chloride (AlCl3)-induced AD. Rats were distributed into four groups: group 1 received saline, group 2 received AlCl3 (70 mg/kg) daily for 9 weeks, and groups 3 and 4 were administered AlCl3 (70 mg/kg) daily for 5 weeks. Dapagliflozin (1 mg/kg) and dapagliflozin (5 mg/kg) were then given daily with AlCl3 for another 4 weeks. Two behavioral experiments were performed: the Morris Water Maze (MWM) and the Y-maze spontaneous alternation (Y-maze) task. Histopathological alterations in the brain, as well as changes in acetylcholinesterase (AChE) and amyloid β (Aβ) peptide activities and oxidative stress (OS) markers, were all evaluated. A western blot analysis was used for the detection of phosphorylated 5' AMP-activated protein kinase (p-AMPK), phosphorylated mammalian target of Rapamycin (p-mTOR) and heme oxygenase-1 (HO-1). Tissue samples were collected for the isolation of glucose transporters (GLUTs) and glycolytic enzymes using PCR analysis, and brain glucose levels were also measured. The current data demonstrate that dapagliflozin represents a possible approach to combat AlCl3-induced AD in rats through inhibiting oxidative stress, enhancing glucose metabolism and activating AMPK signaling.
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Affiliation(s)
- Waad A Samman
- Department of Pharmacology and Toxicology, College of Pharmacy, Taibah University, Medina 30078, Saudi Arabia
| | - Salma M Selim
- Department of Pharmacology and Toxicology, Faculty of Dentistry, Sinai University, Kantara, Ismailia 41636, Egypt
| | - Hassan M El Fayoumi
- Department of Pharmacology and Toxicology, Faculty of Dentistry, Sinai University, Kantara, Ismailia 41636, Egypt
| | - Norhan M El-Sayed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
| | - Eman T Mehanna
- Department of Biochemistry, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
| | - Reem M Hazem
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
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Ameliorative effects of bromelain on aluminum-induced Alzheimer's disease in rats through modulation of TXNIP pathway. Int J Biol Macromol 2023; 227:1119-1131. [PMID: 36462588 DOI: 10.1016/j.ijbiomac.2022.11.291] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 11/01/2022] [Accepted: 11/28/2022] [Indexed: 12/05/2022]
Abstract
Alzheimer's disease (AD) is known as "type 3 diabetes". As thioredoxin binding protein (TXNIP) has been shown to be involved in brain insulin resistance, the present study evaluated the roles of TXNIP, phospho-insulin receptor substrate 1 (P-IRS-1), and phosphatidyl inositol-3 kinase (PI3K) in the pathogenesis of AD. The potential ameliorative effect of bromelain compared to donepezil was evaluated in an aluminum chloride (AlCl3)-induced AD in rats. Behavioral tests demonstrated similar improvements in exploratory activity, cognitive and spatial memory functions, anxiety, and depression levels between rats treated with bromelain and donepezil. Donepezil was superior to bromelain in improving locomotor activity. Histopathological examinations demonstrated neuronal degeneration in the AlCl3 group that was almost normalized by bromelain and donepezil. Moreover, there was deposition of amyloid plaques in the AlCl3 group that was improved by bromelain and donepezil. Acetylcholine esterase levels were significantly increased in rats treated with AlCl3 group and significantly decreased in rats treated with bromelain and donepezil. Furthermore, AlCl3 group showed a significantly increased TXNIP and P-IRS1 and a significantly reduced PI3K levels. These effects were ameliorated by bromelain and donepezil treatment. The present study demonstrates a previously unreported modulatory effect of bromelain on the TXNIP/P-IRS-1/PI3K axis in AD model.
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19
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Anadozie SO, Effiom DO, Adewale OB, Jude J, Zosela I, Akawa OB, Olayinka JN, Roux S. Hibiscus sabdariffa synthesized gold nanoparticles ameliorate aluminum chloride induced memory deficits through inhibition of COX-2/BACE-1 mRNA expression in rats. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2023.104604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
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20
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Abozaid OAR, Sallam MW, El-Sonbaty S, Aziza S, Emad B, Ahmed ESA. Resveratrol-Selenium Nanoparticles Alleviate Neuroinflammation and Neurotoxicity in a Rat Model of Alzheimer's Disease by Regulating Sirt1/miRNA-134/GSK3β Expression. Biol Trace Elem Res 2022; 200:5104-5114. [PMID: 35059981 DOI: 10.1007/s12011-021-03073-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 12/16/2021] [Indexed: 12/22/2022]
Abstract
Alzheimer's disease (AD) is a brain disorder associated with a gradual weakening in neurocognitive functions, neuroinflammation, and impaired signaling pathways. Resveratrol (RSV) has neuroprotective properties, but with low bioavailability, and low solubility in vivo. Selenium (Se) is an essential micronutrient for brain function. Thus, this study aimed to evaluate the role of formulated RSV-Se nanoparticles (RSV-SeNPs) on neurochemical and histopathological approaches associated with the AD model in rats induced by Aluminum chloride (AlCl3) at a dose of 100 mg/kg/day for 60 days. RSV-SeNPs supplementation attenuates the impaired oxidative markers and mitochondrial dysfunction. The ameliorative effect of RSV-SeNPs on cholinergic deficits was associated with clearance of amyloid β (Aβ). Furthermore, activation of phosphatidylinositol 3 kinase (PI3K) deactivates glycogen synthase kinase 3 beta (GSK-3β)-mediated tau hyperphosphorylation. Additionally, RSV-SeNPs downregulate signal transducer and activator of transcription (STAT3) expression as well as interleukin-1β (IL-1β) levels, therefore alleviating neuroinflammation in AD. Moreover, RSV-SeNPs upregulate the expression of Sirtuin-1 (SIRT1) and lower that of microRNA-134, consequently increasing neurite outgrowth. Eventually, the obtained results showed that nano-formulation of resveratrol with selenium maximized the therapeutic potential of RSV against Alzheimer's disease not only by their antioxidant but also by anti-inflammatory effect improving the neurocognitive function and modulating the signaling pathways.
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Affiliation(s)
- Omayma A R Abozaid
- Biochemistry Department, Faculty of Veterinary Medicine, Benha University, Benha, Egypt
| | - Mohsen W Sallam
- Biochemistry Department, Faculty of Veterinary Medicine, Benha University, Benha, Egypt
| | - Sawsan El-Sonbaty
- National Center for Radiation Research and Technology, Atomic Energy Authority, Cairo, Egypt
| | - Samy Aziza
- Biochemistry Department, Faculty of Veterinary Medicine, Benha University, Benha, Egypt
| | - Basma Emad
- Anatomy and Embryology Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Esraa S A Ahmed
- Radiation Biology, National Center for Radiation Research and Technology, Atomic Energy Authority, Nasr City, Cairo, 11787, Egypt.
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Ex Vivo Antioxidant and Cholinesterase Inhibiting Effects of a Novel Galantamine-Curcumin Hybrid on Scopolamine-Induced Neurotoxicity in Mice. Int J Mol Sci 2022; 23:ijms232314843. [PMID: 36499171 PMCID: PMC9737725 DOI: 10.3390/ijms232314843] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 11/23/2022] [Accepted: 11/24/2022] [Indexed: 12/05/2022] Open
Abstract
Oxidative stress is an essential factor in the development and progression of Alzheimer's disease (AD). An excessive amount of reactive oxygen species (ROS) induces the peroxidation of lipid membranes, reduces the activity of antioxidant enzymes and causes neurotoxicity. In this study, we investigated the antioxidant and cholinesterase inhibitory potential of a novel galantamine-curcumin hybrid, named 4b, administered orally in two doses (2.5 mg/kg and 5 mg/kg) in scopolamine (SC)-induced neurotoxicity in mice. To evaluate the effects of 4b, we used galantamine (GAL) (3 mg/kg) and curcumin (CCN) (25 mg/kg) as positive controls. Ex vivo experiments on mouse brains showed that the higher dose of 4b (5 mg/kg) increased reduced glutathione (GSH) levels by 46%, catalase (CAT) and superoxide dismutase (SOD) activity by 57%, and glutathione peroxidase (GPx) activity by 108%, compared with the SC-treated group. At the same time, 4b (5 mg/kg) significantly reduced the brain malondialdehyde (MDA) level by 31% and acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) activities by 40% and 30%, respectively, relative to the SC-impaired group. The results showed that 4b acted as an antioxidant agent and brain protector, making it promising for further experimental research in the field of neurodegenerative diseases.
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22
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Neuroprotective Effects of Phytochemicals against Aluminum Chloride-Induced Alzheimer’s Disease through ApoE4/LRP1, Wnt3/β-Catenin/GSK3β, and TLR4/NLRP3 Pathways with Physical and Mental Activities in a Rat Model. Pharmaceuticals (Basel) 2022; 15:ph15081008. [PMID: 36015156 PMCID: PMC9416484 DOI: 10.3390/ph15081008] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/05/2022] [Accepted: 08/08/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Alzheimer’s disease (AD) is a neurodegenerative disorder that is associated with abnormal cognition. AD is aided in its initiation and progression by hereditary and environmental factors. Aluminum (Al) is a neurotoxic agent that causes oxidative stress, which is linked to AD progression. Additionally, Nrf2/HO-1, APOE4/LRP1, Wnt3/β-catenin, and TLR4/NLRP3 are the main signaling pathways involved in AD pathogenesis. Several phytochemicals are promising options in delaying AD evolution. Objectives: This study aimed at studying the neuroprotective effects of some phytochemicals as morin (MOR), thymol (TML), and thymoquinone (TMQ) on physical and mental activities (PhM) in Al chloride (AlCl3)-induced AD rat model. Another objective was to determine the specificity of phytochemicals to AD signaling pathways using molecular docking. Methods: Eighty male Dawley rats were divided into eight groups. Each group received: saline (control group), AlCl3, (ALAD), PhM, either alone or with a combination of MOR, TML, and/or TMQ for five weeks. Animals were then subjected to behavioral evaluation. Brain tissues were used for histopathological and biochemical analyses to determine the extent of neurodegeneration. The effect of phytochemicals on AlCl3-induced oxidative stress and the main signaling pathways involved in AD progression were also investigated. Results: AlCl3 caused a decline in spatial learning and memory, as well as histopathological changes in the brains of rats. Phytochemicals combined with PhM restored antioxidant activities, increased HO-1 and Nrf2 levels, blocked inflammasome activation, apoptosis, TLR4 expression, amyloide-β generation, and tau hyperphophorylation. They also brought ApoE4 and LRP1 levels back to normal and regulated Wnt3/β-catenin/GSK3β signaling pathway. Conclusions: The use of phytochemicals with PhM is a promising strategy for reducing AD by modulating Nrf2/HO-1, TLR4/NLRP3, APOE4/LRP1, and Wnt3/β-catenin/GSK-3β signaling pathways.
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23
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Zhao Y, Pogue AI, Alexandrov PN, Butler LG, Li W, Jaber VR, Lukiw WJ. Alteration of Biomolecular Conformation by Aluminum-Implications for Protein Misfolding Disease. Molecules 2022; 27:5123. [PMID: 36014365 PMCID: PMC9412470 DOI: 10.3390/molecules27165123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 08/01/2022] [Accepted: 08/04/2022] [Indexed: 11/16/2022] Open
Abstract
The natural element aluminum possesses a number of unique biochemical and biophysical properties that make this highly neurotoxic species deleterious towards the structural integrity, conformation, reactivity and stability of several important biomolecules. These include aluminum's (i) small ionic size and highly electrophilic nature, having the highest charge density of any metallic cation with a Z2/r of 18 (ionic charge +3, radius 0.5 nm); (ii) inclination to form extremely stable electrostatic bonds with a tendency towards covalency; (iii) ability to interact irreversibly and/or significantly slow down the exchange-rates of complex aluminum-biomolecular interactions; (iv) extremely dense electropositive charge with one of the highest known affinities for oxygen-donor ligands such as phosphate; (v) presence as the most abundant metal in the Earth's biosphere and general bioavailability in drinking water, food, medicines, consumer products, groundwater and atmospheric dust; and (vi) abundance as one of the most commonly encountered intracellular and extracellular metallotoxins. Despite aluminum's prevalence and abundance in the biosphere it is remarkably well-tolerated by all plant and animal species; no organism is known to utilize aluminum metabolically; however, a biological role for aluminum has been assigned in the compaction of chromatin. In this Communication, several examples are given where aluminum has been shown to irreversibly perturb and/or stabilize the natural conformation of biomolecules known to be important in energy metabolism, gene expression, cellular homeostasis and pathological signaling in neurological disease. Several neurodegenerative disorders that include the tauopathies, Alzheimer's disease and multiple prion disorders involve the altered conformation of naturally occurring cellular proteins. Based on the data currently available we speculate that one way aluminum contributes to neurological disease is to induce the misfolding of naturally occurring proteins into altered pathological configurations that contribute to the neurodegenerative disease process.
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Affiliation(s)
- Yuhai Zhao
- LSU Neuroscience Center, Louisiana State University Health Science Center, New Orleans, LA 70112, USA
- Department of Cell Biology & Anatomy, LSU Health Science Center, New Orleans, LA 70112, USA
| | | | | | - Leslie G. Butler
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Wenhong Li
- Department of Pharmacology, Jiangxi University of TCM, Nanchang 330004, China
| | - Vivian R. Jaber
- LSU Neuroscience Center, Louisiana State University Health Science Center, New Orleans, LA 70112, USA
| | - Walter J. Lukiw
- LSU Neuroscience Center, Louisiana State University Health Science Center, New Orleans, LA 70112, USA
- Alchem Biotek Research, Toronto, ON M5S 1A8, Canada
- Russian Academy of Medical Sciences, 113152 Moscow, Russian
- Department of Ophthalmology, LSU Health Science Center, New Orleans, LA 70112, USA
- Department Neurology, LSU Health Science Center, New Orleans, LA 70112, USA
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ELBini-Dhouib I, Manai M, Neili NE, Marzouki S, Sahraoui G, Ben Achour W, Zouaghi S, BenAhmed M, Doghri R, Srairi-Abid N. Dual Mechanism of Action of Curcumin in Experimental Models of Multiple Sclerosis. Int J Mol Sci 2022; 23:ijms23158658. [PMID: 35955792 PMCID: PMC9369178 DOI: 10.3390/ijms23158658] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/22/2022] [Accepted: 07/25/2022] [Indexed: 12/16/2022] Open
Abstract
Background: Multiple sclerosis (MS) is characterized by a combination of inflammatory and demyelination processes in the spinal cord and brain. Conventional drugs generally target the autoimmune response, without any curative effect. For that reason, there is a great interest in identifying novel agents with anti-inflammatory and myelinating effects, to counter the inflammation and cell death distinctive of the disease. Methods and results: An in vitro assay showed that curcumin (Cur) at 10 µM enhanced the proliferation of C8-D1A cells and modulated the production of Th1/Th2/Th17 cytokines in the cells stimulated by LPS. Furthermore, two in vivo pathophysiological experimental models were used to assess the effect of curcumin (100 mg/kg). The cuprizone model mimics the de/re-myelination aspect in MS, and the experimental autoimmune encephalomyelitis model (EAE) reflects immune-mediated events. We found that Cur alleviated the neurological symptomatology in EAE and modulated the expression of lymphocytes CD3 and CD4 in the spinal cord. Interestingly, Cur restored motor and behavioral deficiencies, as well as myelination, in demyelinated mice, as indicated by the higher index of luxol fast blue (LFB) and the myelin basic protein (MBP) intensity in the corpus callosum. Conclusions: Curcumin is a potential therapeutic agent that can diminish the MS neuroimmune imbalance and demyelination through its anti-inflammatory and antioxidant effects.
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Affiliation(s)
- Ines ELBini-Dhouib
- Laboratoire des Biomolécules, Venins et Applications Théranostiques (LR20IPT01), Institut Pasteur de Tunis, Université de Tunis El Manar, Tunis 1002, Tunisia
- Correspondence: or
| | - Maroua Manai
- Laboratoire de Génétique Humaine (LR99ES10), Faculté de Médecine de Tunis, Université de Tunis El Manar, Tunis 2092, Tunisia or
| | - Nour-elhouda Neili
- Laboratoire des Biomolécules, Venins et Applications Théranostiques (LR20IPT01), Institut Pasteur de Tunis, Université de Tunis El Manar, Tunis 1002, Tunisia
| | - Soumaya Marzouki
- Laboratoire de Transmission, Contrôle et Immunobiologie des Infections (LR11IPT02), Institut Pasteur de Tunis, Université de Tunis El Manar, Tunis 1002, Tunisia
| | - Ghada Sahraoui
- Laboratoire de Médecine de Précision, Médecine Personnalisée et Investigation en Oncologie (LR21SP01), Service d’Anatomie Pathologique, Institut Salah Azaiez, Bab Saadoun, Tunis 1006, Tunisia
- Faculté de Médecine de Tunis, Université de Tunis El Manar, Tunis 1068, Tunisia
| | - Warda Ben Achour
- Laboratoire des Biomolécules, Venins et Applications Théranostiques (LR20IPT01), Institut Pasteur de Tunis, Université de Tunis El Manar, Tunis 1002, Tunisia
| | - Sondes Zouaghi
- Laboratoire des Biomolécules, Venins et Applications Théranostiques (LR20IPT01), Institut Pasteur de Tunis, Université de Tunis El Manar, Tunis 1002, Tunisia
| | - Melika BenAhmed
- Laboratoire de Transmission, Contrôle et Immunobiologie des Infections (LR11IPT02), Institut Pasteur de Tunis, Université de Tunis El Manar, Tunis 1002, Tunisia
- Faculté de Médecine de Tunis, Université de Tunis El Manar, Tunis 1068, Tunisia
| | - Raoudha Doghri
- Laboratoire de Médecine de Précision, Médecine Personnalisée et Investigation en Oncologie (LR21SP01), Service d’Anatomie Pathologique, Institut Salah Azaiez, Bab Saadoun, Tunis 1006, Tunisia
- Faculté de Médecine de Tunis, Université de Tunis El Manar, Tunis 1068, Tunisia
| | - Najet Srairi-Abid
- Laboratoire des Biomolécules, Venins et Applications Théranostiques (LR20IPT01), Institut Pasteur de Tunis, Université de Tunis El Manar, Tunis 1002, Tunisia
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Singh P, Barman B, Thakur MK. Oxidative stress-mediated memory impairment during aging and its therapeutic intervention by natural bioactive compounds. Front Aging Neurosci 2022; 14:944697. [PMID: 35959291 PMCID: PMC9357995 DOI: 10.3389/fnagi.2022.944697] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 06/30/2022] [Indexed: 11/13/2022] Open
Abstract
Aging and associated neurodegenerative diseases are accompanied by the decline of several brain functions including cognitive abilities. Progressive deleterious changes at biochemical and physiological levels lead to the generation of oxidative stress, accumulation of protein aggregates, mitochondrial dysfunctions, loss of synaptic connections, and ultimately neurodegeneration and cognitive decline during aging. Oxidative stress that arises due to an imbalance between the rates of production and elimination of free radicles is the key factor for age-associated neurodegeneration and cognitive decline. Due to high energy demand, the brain is more susceptible to free radicals-mediated damages as they oxidize lipids, proteins, and nucleic acids, thereby causing an imbalance in the homeostasis of the aging brain. Animal, as well as human subject studies, showed that with almost no or few side effects, dietary interventions and plant-derived bioactive compounds could be beneficial to recovering the memory or delaying the onset of memory impairment. As the plant-derived bioactive compounds have antioxidative properties, several of them were used to recover the oxidative stress-mediated changes in the aging brain. In the present article, we review different aspects of oxidative stress-mediated cognitive change during aging and its therapeutic intervention by natural bioactive compounds.
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Affiliation(s)
- Padmanabh Singh
- Department of Zoology, Banaras Hindu University, Varanasi, India
- Department of Zoology, Indira Gandhi National Tribal University, Amarkantak, India
| | - Bhabotosh Barman
- Department of Zoology, Banaras Hindu University, Varanasi, India
| | - Mahendra Kumar Thakur
- Department of Zoology, Banaras Hindu University, Varanasi, India
- *Correspondence: Mahendra Kumar Thakur,
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来 丽, 窦 长, 智 翠, 陈 洁, 马 雪, 赵 鹏, 姚 碧. [Curcumin alleviates the manganese-induced neurotoxicity by promoting autophagy in rat models of manganism]. BEIJING DA XUE XUE BAO. YI XUE BAN = JOURNAL OF PEKING UNIVERSITY. HEALTH SCIENCES 2022; 54:400-411. [PMID: 35701115 PMCID: PMC9197692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Indexed: 08/30/2024]
Abstract
OBJECTIVE To investigate the protective effects of curcumin(CUR) and its mechanism on a rat model of neurotoxicity induced by manganese chloride (MnCl2), which mimics mangnism. METHODS Sixty male SD rats were randomly divided into 5 groups, with 12 rats in each group. Control group received 0.9% saline solution intraperitoneally (ip) plus double distilled water (dd) H2O intragastrically (ig), MnCl2 group received 15 mg/kg MnCl2(Mn2+ 6.48 mg/kg) intraperitoneally plus dd H2O intragastrically, CUR group received 0.9% saline solution intraperitoneally plus 300 mg/kg CUR intragastrically, MnCl2+ CUR1 group received 15 mg/kg MnCl2 intraperitoneally plus 100 mg/kg curcumin intragastrically, MnCl2+ CUR2 group received 15 mg/kg MnCl2 intraperitoneally plus 300 mg/kg CUR intragastrically, 5 days/week, 4 weeks. Open-field and rotarod tests were used to detect animals' exploratory behavior, anxiety, depression, movement and balance ability. Morris water maze (MWM) experiment was used to detect animals' learning and memory ability. ICP-MS was used to investigate the Mn contents in striata. The rats per group were perfused in situ, their brains striata were removed by brains model and fixed for transmission electron microscope (TEM), histopathological and immunohistochemistry (ICH) analyses. The other 6 rats per group were sacrificed. Their brains striata were removed and protein expression levels of transcription factor EB (TFEB), mammalian target of rapamycin (mTOR), p-mTOR, Beclin, P62, microtubule-associated protein light chain-3 (LC3) were detected by Western blotting. Terminal deoxynucleotidyl transterase-mediated dUTP nick end labeling (TUNEL) staining was used to determine neurocyte apoptosis of rat striatum. RESULTS After exposure to MnCl2 for four weeks, MnCl2-treated rats showed depressive-like behavior in open-field test, the impairments of movement coordination and balance in rotarod test and the diminishment of spatial learning and memory in MWM (P < 0.05). The striatal TH+ neurocyte significantly decreased, eosinophilic cells, aggregative α-Syn level and TUNEL-positive neurocyte significantly increased in the striatum of MnCl2 group compared with control group (P < 0.05). Chromatin condensation, mitochondria tumefaction and autophagosomes were observed in rat striatal neurocytes of MnCl2 group by TEM. TFEB nuclear translocation and autophagy occurred in the striatum of MnCl2 group. Further, the depressive behavior, movement and balance ability, spatial learning and memory ability of MnCl2+ CUR2 group were significantly improved compared with MnCl2 group (P < 0.05). TH+ neurocyte significantly increased, the eosinophilic cells, aggregative α-Syn level significantly decreased in the striatum of MnCl2+ CUR2 group compared with MnCl2 group. Further, compared with MnCl2 group, chromatin condensation, mitochondria tumefaction was alleviated and autophagosomes increased, TFEB-nuclear translocation, autophagy was enhanced and TUNEL-positive neurocyte reduced significantly in the striatum of MnCl2+ CUR2 group (P < 0.05). CONCLUSION Curcumin alleviated the MnCl2-induced neurotoxicity and α-Syn aggregation probably by promoting TFEB nuclear translocation and enhancing autophagy.
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Affiliation(s)
- 丽叶 来
- />北京大学公共卫生学院毒理学系,食品安全毒理学研究与评价北京市重点实验室,北京 100191Department of Toxicology, Peking University School of Public Health, Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, China
| | - 长松 窦
- />北京大学公共卫生学院毒理学系,食品安全毒理学研究与评价北京市重点实验室,北京 100191Department of Toxicology, Peking University School of Public Health, Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, China
| | - 翠娜 智
- />北京大学公共卫生学院毒理学系,食品安全毒理学研究与评价北京市重点实验室,北京 100191Department of Toxicology, Peking University School of Public Health, Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, China
| | - 洁 陈
- />北京大学公共卫生学院毒理学系,食品安全毒理学研究与评价北京市重点实验室,北京 100191Department of Toxicology, Peking University School of Public Health, Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, China
| | - 雪 马
- />北京大学公共卫生学院毒理学系,食品安全毒理学研究与评价北京市重点实验室,北京 100191Department of Toxicology, Peking University School of Public Health, Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, China
| | - 鹏 赵
- />北京大学公共卫生学院毒理学系,食品安全毒理学研究与评价北京市重点实验室,北京 100191Department of Toxicology, Peking University School of Public Health, Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, China
| | - 碧云 姚
- />北京大学公共卫生学院毒理学系,食品安全毒理学研究与评价北京市重点实验室,北京 100191Department of Toxicology, Peking University School of Public Health, Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, China
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27
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[Curcumin alleviates the manganese-induced neurotoxicity by promoting autophagy in rat models of manganism]. BEIJING DA XUE XUE BAO. YI XUE BAN = JOURNAL OF PEKING UNIVERSITY. HEALTH SCIENCES 2022; 54. [PMID: 35701115 PMCID: PMC9197692 DOI: 10.19723/j.issn.1671-167x.2022.03.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
OBJECTIVE To investigate the protective effects of curcumin(CUR) and its mechanism on a rat model of neurotoxicity induced by manganese chloride (MnCl2), which mimics mangnism. METHODS Sixty male SD rats were randomly divided into 5 groups, with 12 rats in each group. Control group received 0.9% saline solution intraperitoneally (ip) plus double distilled water (dd) H2O intragastrically (ig), MnCl2 group received 15 mg/kg MnCl2(Mn2+ 6.48 mg/kg) intraperitoneally plus dd H2O intragastrically, CUR group received 0.9% saline solution intraperitoneally plus 300 mg/kg CUR intragastrically, MnCl2+ CUR1 group received 15 mg/kg MnCl2 intraperitoneally plus 100 mg/kg curcumin intragastrically, MnCl2+ CUR2 group received 15 mg/kg MnCl2 intraperitoneally plus 300 mg/kg CUR intragastrically, 5 days/week, 4 weeks. Open-field and rotarod tests were used to detect animals' exploratory behavior, anxiety, depression, movement and balance ability. Morris water maze (MWM) experiment was used to detect animals' learning and memory ability. ICP-MS was used to investigate the Mn contents in striata. The rats per group were perfused in situ, their brains striata were removed by brains model and fixed for transmission electron microscope (TEM), histopathological and immunohistochemistry (ICH) analyses. The other 6 rats per group were sacrificed. Their brains striata were removed and protein expression levels of transcription factor EB (TFEB), mammalian target of rapamycin (mTOR), p-mTOR, Beclin, P62, microtubule-associated protein light chain-3 (LC3) were detected by Western blotting. Terminal deoxynucleotidyl transterase-mediated dUTP nick end labeling (TUNEL) staining was used to determine neurocyte apoptosis of rat striatum. RESULTS After exposure to MnCl2 for four weeks, MnCl2-treated rats showed depressive-like behavior in open-field test, the impairments of movement coordination and balance in rotarod test and the diminishment of spatial learning and memory in MWM (P < 0.05). The striatal TH+ neurocyte significantly decreased, eosinophilic cells, aggregative α-Syn level and TUNEL-positive neurocyte significantly increased in the striatum of MnCl2 group compared with control group (P < 0.05). Chromatin condensation, mitochondria tumefaction and autophagosomes were observed in rat striatal neurocytes of MnCl2 group by TEM. TFEB nuclear translocation and autophagy occurred in the striatum of MnCl2 group. Further, the depressive behavior, movement and balance ability, spatial learning and memory ability of MnCl2+ CUR2 group were significantly improved compared with MnCl2 group (P < 0.05). TH+ neurocyte significantly increased, the eosinophilic cells, aggregative α-Syn level significantly decreased in the striatum of MnCl2+ CUR2 group compared with MnCl2 group. Further, compared with MnCl2 group, chromatin condensation, mitochondria tumefaction was alleviated and autophagosomes increased, TFEB-nuclear translocation, autophagy was enhanced and TUNEL-positive neurocyte reduced significantly in the striatum of MnCl2+ CUR2 group (P < 0.05). CONCLUSION Curcumin alleviated the MnCl2-induced neurotoxicity and α-Syn aggregation probably by promoting TFEB nuclear translocation and enhancing autophagy.
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Attenuation of Scopolamine-Induced Amnesia via Cholinergic Modulation in Mice by Synthetic Curcumin Analogs. Molecules 2022; 27:molecules27082468. [PMID: 35458662 PMCID: PMC9029618 DOI: 10.3390/molecules27082468] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 04/05/2022] [Accepted: 04/07/2022] [Indexed: 01/13/2023] Open
Abstract
Alzheimer’s disease is an emerging health disorder associated with cognitive decline and memory loss. In this study, six curcumin analogs (1a−1f) were synthesized and screened for in vitro cholinesterase inhibitory potential. On the basis of promising results, they were further investigated for in vivo analysis using elevated plus maze (EPM), Y-maze, and novel object recognition (NOR) behavioral models. The binding mode of the synthesized compounds with the active sites of cholinesterases, and the involvement of the cholinergic system in brain hippocampus was determined. The synthesized curcumin analog 1d (p < 0.001, n = 6), and 1c (p < 0.01, n = 6) showed promising results by decreasing retention time in EPM, significantly increasing % SAP in Y-maze, while significantly (p < 0.001) enhancing the % discrimination index (DI) and the time exploring the novel objects in NORT mice behavioral models. A molecular docking study using MOE software was used for validation of the inhibition of cholinesterase(s). It has been indicated from the current research work that the synthesized curcumin analogs enhanced memory functions in mice models and could be used as valuable therapeutic molecules against neurodegenerative disorders. To determine their exact mechanism of action, further studies are suggested.
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Ashok A, Andrabi SS, Mansoor S, Kuang Y, Kwon BK, Labhasetwar V. Antioxidant Therapy in Oxidative Stress-Induced Neurodegenerative Diseases: Role of Nanoparticle-Based Drug Delivery Systems in Clinical Translation. Antioxidants (Basel) 2022; 11:antiox11020408. [PMID: 35204290 PMCID: PMC8869281 DOI: 10.3390/antiox11020408] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 02/02/2022] [Accepted: 02/05/2022] [Indexed: 02/04/2023] Open
Abstract
Free radicals are formed as a part of normal metabolic activities but are neutralized by the endogenous antioxidants present in cells/tissue, thus maintaining the redox balance. This redox balance is disrupted in certain neuropathophysiological conditions, causing oxidative stress, which is implicated in several progressive neurodegenerative diseases. Following neuronal injury, secondary injury progression is also caused by excessive production of free radicals. Highly reactive free radicals, mainly the reactive oxygen species (ROS) and reactive nitrogen species (RNS), damage the cell membrane, proteins, and DNA, which triggers a self-propagating inflammatory cascade of degenerative events. Dysfunctional mitochondria under oxidative stress conditions are considered a key mediator in progressive neurodegeneration. Exogenous delivery of antioxidants holds promise to alleviate oxidative stress to regain the redox balance. In this regard, natural and synthetic antioxidants have been evaluated. Despite promising results in preclinical studies, clinical translation of antioxidants as a therapy to treat neurodegenerative diseases remains elusive. The issues could be their low bioavailability, instability, limited transport to the target tissue, and/or poor antioxidant capacity, requiring repeated and high dosing, which cannot be administered to humans because of dose-limiting toxicity. Our laboratory is investigating nanoparticle-mediated delivery of antioxidant enzymes to address some of the above issues. Apart from being endogenous, the main advantage of antioxidant enzymes is their catalytic mechanism of action; hence, they are significantly more effective at lower doses in detoxifying the deleterious effects of free radicals than nonenzymatic antioxidants. This review provides a comprehensive analysis of the potential of antioxidant therapy, challenges in their clinical translation, and the role nanoparticles/drug delivery systems could play in addressing these challenges.
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Affiliation(s)
- Anushruti Ashok
- Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA; (A.A.); (S.S.A.); (S.M.); (Y.K.)
| | - Syed Suhail Andrabi
- Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA; (A.A.); (S.S.A.); (S.M.); (Y.K.)
| | - Saffar Mansoor
- Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA; (A.A.); (S.S.A.); (S.M.); (Y.K.)
| | - Youzhi Kuang
- Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA; (A.A.); (S.S.A.); (S.M.); (Y.K.)
| | - Brian K. Kwon
- Department of Orthopaedics, Faculty of Medicine, University of British Columbia, Vancouver, BC V5Z 1M9, Canada;
| | - Vinod Labhasetwar
- Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA; (A.A.); (S.S.A.); (S.M.); (Y.K.)
- Correspondence:
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Abdulmalek S, Nasef M, Awad D, Balbaa M. Protective Effect of Natural Antioxidant, Curcumin Nanoparticles, and Zinc Oxide Nanoparticles against Type 2 Diabetes-Promoted Hippocampal Neurotoxicity in Rats. Pharmaceutics 2021; 13:pharmaceutics13111937. [PMID: 34834352 PMCID: PMC8621156 DOI: 10.3390/pharmaceutics13111937] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/04/2021] [Accepted: 11/08/2021] [Indexed: 02/07/2023] Open
Abstract
Numerous epidemiological findings have repeatedly established associations between Type 2 Diabetes Mellitus (T2DM) and Alzheimer's disease. Targeting different pathways in the brain with T2DM-therapy offers a novel and appealing strategy to treat diabetes-related neuronal alterations. Therefore, here we investigated the capability of a natural compound, curcumin nanoparticle (CurNP), and a biomedical metal, zinc oxide nanoparticle (ZnONP), to alleviate hippocampal modifications in T2DM-induced rats. The diabetes model was induced in male Wistar rats by feeding a high-fat diet (HFD) for eight weeks followed by intraperitoneal injection of streptozotocin (STZ). Then model groups were treated orally with curcumin, zinc sulfate, two doses of CurNP and ZnONP, as well as metformin, for six weeks. HFD/STZ-induced rats exhibited numerous biochemical and molecular changes besides behavioral impairment. Compared with model rats, CurNP and ZnONP boosted learning and memory function, improved redox and inflammation status, lowered Bax, and upregulated Bcl2 expressions in the hippocampus. In addition, the phosphorylation level of the MAPK/ERK pathway was downregulated significantly. The expression of amyloidogenic-related genes and amyloid-beta accumulation, along with tau hyperphosphorylation, were lessened considerably. In addition, both nanoparticles significantly improved histological lesions in the hippocampus. Based on our findings, CurNP and ZnONP appear to be potential neuroprotective agents to mitigate diabetic complications-associated hippocampal toxicity.
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Affiliation(s)
- Shaymaa Abdulmalek
- Department of Biochemistry, Faculty of Science, Alexandria University, Alexandria 21511, Egypt; (S.A.); (M.N.); (D.A.)
- Center of Excellency for Preclinical Study (CE-PCS), Pharmaceutical and Fermentation Industries Development Centre, City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City 21934, Egypt
| | - Mayada Nasef
- Department of Biochemistry, Faculty of Science, Alexandria University, Alexandria 21511, Egypt; (S.A.); (M.N.); (D.A.)
| | - Doaa Awad
- Department of Biochemistry, Faculty of Science, Alexandria University, Alexandria 21511, Egypt; (S.A.); (M.N.); (D.A.)
| | - Mahmoud Balbaa
- Department of Biochemistry, Faculty of Science, Alexandria University, Alexandria 21511, Egypt; (S.A.); (M.N.); (D.A.)
- Correspondence: ; Fax: +20-39-1179-4320
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Lee S, Jo C, Choi HY, Lee K. Effect of Co-Administration of Curcumin with Amlodipine in Hypertension. Nutrients 2021; 13:nu13082797. [PMID: 34444956 PMCID: PMC8399053 DOI: 10.3390/nu13082797] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/12/2021] [Accepted: 08/13/2021] [Indexed: 12/18/2022] Open
Abstract
Curcumin, a curcuminoid known as the main bioactive compound of turmeric, is used in foods, cosmetics, and pharmaceutical products. Amlodipine is a general antihypertensive drug used in combination with various other antihypertensive agents. To date, no studies have examined the effects of the co-administration of amlodipine with curcumin. In this study, the vasodilatory effects of curcumin, amlodipine, and the co-administration of curcumin with amlodipine on isolated rat aortic rings pre-contracted with phenylephrine were evaluated, and the hypotensive effects were evaluated using the tail cuff method. To measure blood pressure, male spontaneously hypertensive rats were divided into four groups, each containing six rats, as follows: amlodipine 1 mg/kg alone treated, amlodipine 1 mg/kg with curcumin 30 mg/kg treated, amlodipine 1 mg/kg with curcumin 100 mg/kg treated, and amlodipine 1 mg/kg with curcumin 300 mg/kg treated groups. Amlodipine and curcumin were intraperitoneally injected, and systolic blood pressure (SBP) and diastolic blood pressure (DBP) were measured at 1, 2, 4, and 8 h after administration. The combined administration of curcumin and amlodipine induced a stronger vasorelaxant effect than amlodipine alone. However, co-administration did not significantly lower SBP and DBP compared to the single administration of amlodipine. The results of this study suggest that hypertensive patients taking amlodipine can consume curcumin or turmeric for food or other medical purposes without inhibiting the blood pressure-lowering effect of amlodipine.
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Affiliation(s)
- Somin Lee
- Department of Biomedical Science and Technology, Graduate School, Kyung Hee University, Seoul 02447, Korea;
| | - Cheolmin Jo
- Department of Herbal Pharmacology, Graduate School, Kyung Hee University, Seoul 02447, Korea;
| | - Ho-Young Choi
- Department of Herbal Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul 02447, Korea;
| | - Kyungjin Lee
- Department of Herbal Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul 02447, Korea;
- Correspondence: ; Tel.: +82-2-961-0332
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