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Kessas K, Lounis W, Chouari Z, Vejux A, Lizard G, Kharoubi O. Benefits of rutin on mitochondrial function and inflammation in an aluminum-induced neurotoxicity rat model: Potential interest for the prevention of neurodegeneration. Biochimie 2024; 222:1-8. [PMID: 38408719 DOI: 10.1016/j.biochi.2024.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 02/23/2024] [Accepted: 02/23/2024] [Indexed: 02/28/2024]
Abstract
Rutin, a phenolic compound, exhibits a diverse range of biological properties, including antioxidant, anti-inflammatory, and antimicrobial effects. In this study, we aimed to investigate the potential of rutin, a naturally occurring plant bioactive molecule, to mitigate the neurotoxic effects induced by aluminum chloride (AlCl3). Over a period of 6 weeks, rats were intraperitoneally injected with AlCl3 at a weekly dose of 60 mg/kg, while rutin treatment was administered orally via gavage at a daily dose of 30 mg/kg. AlCl3 exposure resulted in a significant increase lipid peroxidation (LPO) by 316.24%, nitrate levels by 504.14%, and tumor necrosis factor-alpha (TNF-α) levels by 93.82% in brain mitochondria. Additionally, AlCl3 exposure led to a reduction in glutathione levels and the activity of antioxidant enzymes, including superoxide dismutase (SOD) by 19.74%, glutathione peroxidase (GPx) by 44.76%, and catalase by 50.50%. There was also a significant decline in the activity of mitochondrial complex enzymes. In contrast, rutin treatment significantly enhanced the activity of antioxidant enzymes while concurrently reducing lipid peroxidation levels in rats. Specifically, rutin administration exerted a modulatory effect on the inflammatory response triggered by aluminum exposure, effectively suppressing the excessive production of nitrate and TNF-α. These findings highlight the potential of rutin as an effective therapeutic strategy in mitigating and combating neuro-inflammation and oxidative stress associated with aluminum-induced toxicity, thereby effectively restoring mitochondrial function.
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Affiliation(s)
- Khadidja Kessas
- Laboratory of Biotoxicology Experimentale, Biodepollution and Phytoremediation, Faculty of Life and Natural Sciences, University Oran1 ABB, Oran, 31100, Algeria.
| | - Wafaa Lounis
- Laboratory of Biotoxicology Experimentale, Biodepollution and Phytoremediation, Faculty of Life and Natural Sciences, University Oran1 ABB, Oran, 31100, Algeria
| | - Zehor Chouari
- Laboratory of Biotoxicology Experimentale, Biodepollution and Phytoremediation, Faculty of Life and Natural Sciences, University Oran1 ABB, Oran, 31100, Algeria
| | - Anne Vejux
- Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism' EA7270/Inserm, University Bourgogne Franche-Comté, 21000, Dijon, France
| | - Gérard Lizard
- Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism' EA7270/Inserm, University Bourgogne Franche-Comté, 21000, Dijon, France
| | - Omar Kharoubi
- Laboratory of Biotoxicology Experimentale, Biodepollution and Phytoremediation, Faculty of Life and Natural Sciences, University Oran1 ABB, Oran, 31100, Algeria
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Kazmi I, Afzal M, Imam F, Alzarea SI, Patil S, Mhaiskar A, Shah U, Almalki WH. Barbaloin's Chemical Intervention in Aluminum Chloride Induced Cognitive Deficits and Changes in Rats through Modulation of Oxidative Stress, Cytokines, and BDNF Expression. ACS Omega 2024; 9:6976-6985. [PMID: 38371830 PMCID: PMC10870395 DOI: 10.1021/acsomega.3c08791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 12/16/2023] [Accepted: 01/05/2024] [Indexed: 02/20/2024]
Abstract
Alzheimer's disease (AD) is a long-term neurodegenerative condition characterized by impaired cognitive functions, particularly in the domains of learning and memory. Finding promising options for AD can be successful with a medication repurposing strategy. The goal of the research was to examine the neuroprotective characteristics of barbaloin in aluminum chloride (AlCl3)-induced cognitive deficits and changes in rats through modulation of oxidative stress, cytokines, and brain-derived neurotrophic factor (BDNF) expression. Thirty male Wistar rats were subjected to AlCl3 at a dosage of 100 mg/kg via the per oral route (p.o.), which induced cognitive decline. Morris water maze (MWM) is used to assess behavioral metrics. Assays for catalase (CAT), malondialdehyde (MDA), reduced glutathione (GSH), acetylcholinesterase (AChE), choline-acetyltransferase (ChAT), interleukins-1β (IL-1β), superoxide dismutase (SOD), tumor necrosis factor-α (TNF-α), nuclear factor kappa-B (NF-κB), interleukins-6 (IL-6), BDNF, and neurotransmitter levels [dopamine (DA), acetylcholine (Ach), and γ-aminobutyric acid (GABA)] were performed. Results: The transfer latency time was notably decreased, and substantial modifications in the concentrations of GSH, MDA, CAT, SOD, AChE, ChAT and observed modulations in the formation of interleukins-6 (IL-6), TNF-α, IL-1β, BDNF, and NF-κB were also evidenced after the treatment of rats with barbaloin in comparison to AlCl3-induced control groups. Significant alterations in neurotransmitter levels (DA, Ach, and GABA) were also seen in barbaloin-treated groups in comparison to AlCl3-induced groups. The current investigation has provided evidence that the administration of barbaloin yielded notable enhancements in cognitive function in rats through the inhibition of MDA, enhancing endogenous antioxidant enzymes, reduction of cytokine levels, and enhancement of neurotransmitter contents in the brain. These effects were observed in comparison to a control group treated with AlCl3 and can be attributable to barbaloin's strong anti-inflammatory and antioxidant properties, and metal chelating properties may contribute to its neuroprotective effects. Barbaloin may also promote neuronal survival and enhance learning and memory by upregulating the expression of BDNF.
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Affiliation(s)
- Imran Kazmi
- Department
of Biochemistry, Faculty of Sciences, King
Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Muhammad Afzal
- Department
of Pharmaceutical Sciences, Pharmacy Program,
Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia
| | - Faisal Imam
- Department
of Pharmacology and Toxicology, College
of Pharmacy, King Saud University, P.O.
Box 2457, Riyadh 11451, Saudi Arabia
| | - Sami I. Alzarea
- Department
of Pharmacology, College of Pharmacy, Jouf
University, Aljouf, Sakaka 72341, Saudi Arabia
| | - Shaktipal Patil
- Department
of Pharmacology, H. R. Patel Institute of
Pharmaceutical Education and Research, Karwand naka, Shirpur 425405, Maharashtra, India
- Department
of Chemistry, Nootan Pharmacy College, Sankalchand
Patel University, Visnagar 384315, Gujarat, India
| | - Amrapali Mhaiskar
- Department
of Pharmacology, R. C. Patel Institute of
Pharmaceutical Education and Research, Karwand naka, Shirpur 425405, Maharashtra, India
| | - Ujashkumar Shah
- Department
of Chemistry, Nootan Pharmacy College, Sankalchand
Patel University, Visnagar 384315, Gujarat, India
| | - Waleed Hassan Almalki
- Department
of Pharmacology, College of Pharmacy, Umm
Al-Qura University, Makkah 21955, Saudi Arabia
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Khan S, Khan HU, Khan FA, Shah A, Wadood A, Ahmad S, Almehmadi M, Alsaiari AA, Shah FU, Kamran N. Anti-Alzheimer and Antioxidant Effects of Nelumbo nucifera L. Alkaloids, Nuciferine and Norcoclaurine in Alloxan-Induced Diabetic Albino Rats. Pharmaceuticals (Basel) 2022; 15:ph15101205. [PMID: 36297317 PMCID: PMC9608663 DOI: 10.3390/ph15101205] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 09/23/2022] [Accepted: 09/24/2022] [Indexed: 12/04/2022] Open
Abstract
The present study is aimed to determine the efficacy and dose response of the nuciferine (1), norcoclaurine (2) and crude extract of Nelumbo nucifera in managements of diabetes, Alzheimer disease and related allergies. Experimentally, alloxan (100 mg/kg body weight (b.w.))-induced diabetic rats (200−250 g) were divided into seven groups (n = 6). Group I: normal control, Group II: diabetic control, Group III: standard treated with glibenclamide and Group lV-VII: treated with methanolic crude extracts (100, 200 mg/kg), nuciferine and norcoclaurine (10 mg/kg b.w.) for 15 days. Different tests were performed, including blood glucose, body weights and antioxidant enzyme assays, i.e., superoxide dismutase (SOD), catalase test (CAT), lipid peroxidation assay (TBARS), glutathione assay (GSH) and acetylcholinesterase (AChE) assay. Nuciferine and norcoclaurine significantly reduced blood glucose (p < 0.05) and restored body weight in diabetic rats. Moreover, nuciferine and norcoclaurine (10 mg/kg) significantly recovered the antioxidant enzymes (SOD, CAT, GPx and GSH) which decreased during induced diabetes. Significant increase in TBARS was also observed in the diabetic group and nuciferine as well as norcoclaurine (10 mg/kg) inhibited the increase in TBARS in diabetic animals (p < 0.05), as compared to glibenclamide. AChE activity was significantly recovered by nuciferine and norcoclaurine (10 mg/kg) both in the blood and brain of the diabetic group (p < 0.05). Nuciferine and norcoclaurine showed potent inhibitory effects against α-glucosidase and α-amylase with IC50, 19.06 ± 0.03, 15.03 ± 0.09 μM and 24.07 ± 0.05, 18.04 ± 0.021 μM, as confirmed by molecular docking studies. This study concludes that nuciferine and norcoclaurine significantly improve memory and could be considered as an effective phytomedicine for diabetes, Alzheimer’s disease (AD) and oxidative stress.
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Affiliation(s)
- Shahnaz Khan
- Department of Chemistry, University of Science and Technology, Bannu 28100, Khyber Pakhtunkhwa, Pakistan
- Correspondence: (S.K.); (F.A.K.); Tel.: +92-3339724044 (F.A.K.)
| | - Hidayat Ullah Khan
- Department of Chemistry, University of Science and Technology, Bannu 28100, Khyber Pakhtunkhwa, Pakistan
| | - Farman Ali Khan
- Department of Chemistry, Shaheed Benazir Bhutto University, Sheringal, Dir Upper 18000, Khyber Pakhtunkhwa, Pakistan
- Correspondence: (S.K.); (F.A.K.); Tel.: +92-3339724044 (F.A.K.)
| | - Afzal Shah
- Department of Chemistry, University of Science and Technology, Bannu 28100, Khyber Pakhtunkhwa, Pakistan
| | - Abdul Wadood
- Department of Biochemistry, Abdul Wali khan University, Mardan 23200, Khyber Pakhtunkhwa, Pakistan
| | - Shujaat Ahmad
- Department of Pharmacy, Shaheed Benazir Bhutto University, Sheringal, Dir Upper 18000, Khyber Pakhtunkhwa, Pakistan
| | - Mazen Almehmadi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Ahad Amer Alsaiari
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Farid Ullah Shah
- Department of Biochemistry, Rehman Medical Collage, Peshawar 25000, Khyber Pakhtunkhwa, Pakistan
| | - Naveed Kamran
- Lady Reading Hospital, Peshawar 25000, Khyber Pakhtunkhwa, Pakistan
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Rajamanickam G, SL M. Bio-guided isolation of anti-Alzheimer’s compounds from Phyllanthus niruri and role of niruriflavone in the reversal of aluminum chloride-induced neurobehavioral and biochemical changes in an animal model. Med Chem Res 2022. [DOI: 10.1007/s00044-022-02944-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abdel-Aal RA, Hussein OA, Elsaady RG, Abdelzaher LA. Naproxen as a potential candidate for promoting rivastigmine anti-Alzheimer activity against aluminum chloride-prompted Alzheimer's-like disease in rats; neurogenesis and apoptosis modulation as a possible underlying mechanism. Eur J Pharmacol 2022; 915:174695. [PMID: 34914971 DOI: 10.1016/j.ejphar.2021.174695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 11/29/2021] [Accepted: 12/07/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND AND AIM Alzheimer's disease (AD) is one of the leading causes of dependence and disability among the elderly worldwide. The traditional anti-Alzheimer medication, rivastigmine, one of the cholinesterase inhibitors (ChEIs), fails to achieve a definitive cure. We tested the hypothesis that naproxen administration to the rivastigmine-treated aluminum chloride (AlCl3) Alzheimer's rat model could provide an additive neuroprotective effect compared to rivastigmine alone. MATERIALS AND METHODS The studied groups were control (Cont), AlCl3 treated (Al), rivastigmine treated (RIVA), naproxen treated (Napro), and combined rivastigmine and naproxen treated (RIVA + Napro). Rats' memory, spatial learning, and cognitive behavior were assessed followed by evaluation of hippocampal acetylcholinesterase (AChE) activity. Hippocampal and cerebellar histopathology were thoroughly examined. Activated caspase-3 and the neuroepithelial stem cells marker; nestin expressions were immunohistochemically assayed. RESULTS AD rats displayed significantly impaired memory and cognitive function, augmented hippocampal AChE activity; massive neurodegeneration associated with enhanced astrogliosis, apoptosis, and impaired neurogenesis. Except for the enhancement of neurogenesis and suppression of apoptosis, the combination therapy had no additional neuroprotective benefit over rivastigmine-only therapy. CONCLUSION Naproxen's efficacy was established by its ability to function at the cellular level, improved neurogenesis, and decreased, apoptosis without having an additional mitigating impact on cognitive impairment in rivastigmine-treated AD rats.
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Zidan NS, Omran AME, Rezk SM, Atteia HH, Sakran MI. Anti-Alzheimer's disease potential of Arabian coffee versus Date palm seed extract in male rats. J Food Biochem 2021; 46:e14017. [PMID: 34816451 DOI: 10.1111/jfbc.14017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 10/30/2021] [Accepted: 11/08/2021] [Indexed: 11/29/2022]
Abstract
Coffee is among the most commonly consumed beverage all over the world. Studies have increasingly suggested caffeine and coffee as effective therapeutic interventions against Alzheimer's disease (AD). We have therefore utilized the aluminum chloride rat model for AD to compare the influence of moderately caffeinated (Arabian) and decaffeinated (Date palm seed) coffee on cognitive impairment and pathological events in AD. AD rats given Arabian or Date palm seed coffee were protected against memory impairment and had lower serum levels of the abnormal protein (amyloid-beta; Aβ1-42), the central pathogenic contributor to AD, and transforming growth factor-beta (TGF-β). Interestingly, Date palm seed (decaffeinated) coffee seems to provide more pronounced protection against AD than Arabian (moderately caffeinated) coffee as evidenced by the greater decrease in serum Aβ levels. These results suggest a surprising therapeutic potential of moderate caffeine intake in Arabian coffee to ameliorate AD through decreasing serum Aβ levels. However, Date palm seed (decaffeinated) coffee, rich in flavonoids, appears to provide a better AD-modifying ability through a direct reduction of Aβ production. PRACTICAL APPLICATIONS: Consumption of moderately caffeinated Arabian coffee attenuated AD-induced cognitive impairment via its anti-amyloidogenic potential, decreasing Aβ levels. Moreover, intake of decaffeinated Date seed extract, rich in flavonoids, exerted a superior anti-AD potential through a direct reduction of Aβ production. Both of them were also safe and maintained hepatic and renal functions in a rat model of AlCl3 -induced AD. Further clinical studies are warranted to confirm current results and to recommend the regular drinking of Arabian coffee or Date seed extract as a protective approach to delay AD progression in vulnerable individuals or in early disease stages.
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Affiliation(s)
- Nahla S Zidan
- Department of Nutrition and Food Science, University of Tabuk, Tabuk, Saudi Arabia.,Department of Home Economics, Faculty of Specific Education, Kafrelsheikh University, Kafr El-Shaikh, Egypt
| | - Awatif M E Omran
- Department of Biochemistry, College of Science, Tabuk University, Tabuk, Saudi Arabia.,Department of Biotechnology, Faculty of Science and Technology, Omdurman Islamic University, Omdurman, Sudan
| | - Samar M Rezk
- Clinical Nutrition Department, Mahalla Hepatology Teaching Hospital, Gharbyia, El-Mahalla El-Kubra, Egypt
| | - Hebatallah H Atteia
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia.,Department of Biochemistry, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Mohamed I Sakran
- Biochemistry Department, Faculty of Science, University of Tabuk, Tabuk, Saudi Arabia.,Biochemistry Section, Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
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Elmorsy E, Elsharkawy E, Alhumaydhi FA, Salama M. The protective effect of Indian Catechu methanolic extract against aluminum chloride-induced neurotoxicity, A rodent model of Alzheimer's disease. Heliyon 2021; 7:e06269. [PMID: 33665436 PMCID: PMC7898000 DOI: 10.1016/j.heliyon.2021.e06269] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 01/26/2021] [Accepted: 02/10/2021] [Indexed: 11/21/2022] Open
Abstract
Alzheimer's disease (AD) is the commonest neurodegenerative disorder with a wide array of manifestations, courses, and contributing causes. Despite being clinically characterized a long time ago; no treatment has been developed that could improve the pathology or slow down the disease manifestation- so far. Indian Catechu methanolic extract (ICME) has proved to have multiple beneficial effects that support its use in several disorders- especially those with complex etiology. In the present study, we evaluated the neuroprotective effect of ICME in a rat model of AD using Aluminum Chloride (AlCl3). The results showed that ICME could have a positive impact on the course of AD through its anticholinesterase effect and significant antioxidant effect which was reflected on the animals both on behavioral tests as well as hallmark pathological findings.
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Affiliation(s)
- Ekramy Elmorsy
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Mansoura University, Egypt
- Pathology Department, Faculty of Medicine, Northern Border University-ARAR, North Region, Saudi Arabia
| | - Eman Elsharkawy
- Department of Eco Physiology, Ecology and Range Management Division, Desert Research Center, Mathef El-Mataria, 15753 Egypt
- Department of Chemistry, Science Faculty for Girls, Northern Border University-ARAR, North Region, Saudi Arabia
| | - Fahad A. Alhumaydhi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah 52571, Saudi Arabia
| | - Mohamed Salama
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Mansoura University, Egypt
- Institute of Global Health and Human Ecology, The American University in Cairo (AUC), Cairo 11385, Egypt
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Hazarika I, Mukundan GK, Sundari SP, Das A. The modulatory effect of Hydrocotyle sibthorpioides in attenuating the aluminium chloride induced neurotoxicity in rat brain. ADV TRADIT MED (ADTM) 2021. [DOI: 10.1007/s13596-020-00526-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Laabbar W, Abbaoui A, Elgot A, Mokni M, Amri M, Masmoudi-Kouki O, Gamrani H. Aluminum induced oxidative stress, astrogliosis and cell death in rat astrocytes, is prevented by curcumin. J Chem Neuroanat 2020; 112:101915. [PMID: 33370573 DOI: 10.1016/j.jchemneu.2020.101915] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 12/21/2020] [Accepted: 12/21/2020] [Indexed: 12/12/2022]
Abstract
Aluminum (Al) is recognized potent neurotoxic metal, which causes oxidative stress leading to intracellular accumulation of reactive oxygen species (ROS) and neuronal cell death in various neurodegenerative diseases. Among several medicinal plants with beneficial effects on health, curcumin acts as a multi-functional drug with antioxidant activity. Thus, the purpose of the present study was to evaluate the protective effect of curcumin against aluminum induced-oxidative stress and astrocytes death, in vitro ad in vivo. Incubation of cultured rat astrocytes with two concentrations of Al (37 μM and 150 μM) for 1 h provoked a dose-dependent reduction of the number of living cells as evaluated by Fluorescein diacetate and lactate dehydrogenase assay. Al-treated cells exhibited a reduction of both superoxide dismutase (SOD) and catalase activities. Pretreatment of astrocytes with curcumin (81 μM) prevented Al-induced cell death. Regarding in vivo study, rats were exposed acutely during three consecutive days to three different doses of Al (25 mg/kg, 50 mg/kg and 100 mg/kg, i.p injection), together with curcumin treatment (30 mg/kg). For the chronic model, animals were exposed to Al (3 g/l) in drinking water from intrauterine age to 4 months ages, plus curcumin treatment (175 mg/kg). Data showed that both acute and chronic Al intoxication induced an obvious astrogliosis within motor cortex and hippocampus, while, such effects were restored by curcumin. We showed herein that Al was highly toxic, induced astrocytes death. Then, curcumin protected astrocytes against Al-toxicity. The cytoprotective potential of curcumin is initiated by stimulation of endogenous antioxidant system.
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Affiliation(s)
- Wafaa Laabbar
- Neurosciences, Pharmacology and Environment Team, Laboratory of Clinical, Experimental and Environmental Neurosciences, Faculty of Medicine and Pharmacy, Cadi Ayyad University, Marrakech, Morocco; Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakesh, Morocco
| | - Abdellatif Abbaoui
- Neurosciences, Pharmacology and Environment Team, Laboratory of Clinical, Experimental and Environmental Neurosciences, Faculty of Medicine and Pharmacy, Cadi Ayyad University, Marrakech, Morocco; Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakesh, Morocco
| | - Abdeljalil Elgot
- Epidemiology and Biomedical Sciences Unit, Laboratory of Health Sciences and Technologies, Higher Institute of Health Sciences, Hassan First University of Settat, Settat, Morocco
| | - Meherzia Mokni
- University Tunis El Manar, Faculty of Science of Tunis, UR/11ES09 Laboratory of Functional Neurophysiology and Pathology, 2092 Tunis, Tunisia
| | - Mohamed Amri
- University Tunis El Manar, Faculty of Science of Tunis, UR/11ES09 Laboratory of Functional Neurophysiology and Pathology, 2092 Tunis, Tunisia.
| | - Olfa Masmoudi-Kouki
- University Tunis El Manar, Faculty of Science of Tunis, UR/11ES09 Laboratory of Functional Neurophysiology and Pathology, 2092 Tunis, Tunisia
| | - Halima Gamrani
- Neurosciences, Pharmacology and Environment Team, Laboratory of Clinical, Experimental and Environmental Neurosciences, Faculty of Medicine and Pharmacy, Cadi Ayyad University, Marrakech, Morocco; Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakesh, Morocco.
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Attia H, Albuhayri S, Alaraidh S, Alotaibi A, Yacoub H, Mohamad R, Al-Amin M. Biotin, coenzyme Q10, and their combination ameliorate aluminium chloride-induced Alzheimer's disease via attenuating neuroinflammation and improving brain insulin signaling. J Biochem Mol Toxicol 2020; 34:e22519. [PMID: 32383521 DOI: 10.1002/jbt.22519] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 04/05/2020] [Accepted: 04/23/2020] [Indexed: 12/15/2022]
Abstract
Insulin is important for brain function and neuronal survival. Insulin signaling is initiated by the phosphorylation of insulin receptor substrate-1 (IRS-1) at tyrosine (pTyr) residue. However, IRS-1 is inhibited by phosphorylation at serine (pSer). In Alzheimer's disease (AD), oxidative stress and accumulation of amyloid beta (Aβ) induce neuroinflammation, which augments pSer-IRS-1 and reduces pTyr-IRS-1 disturbing insulin signaling pathway. Coenzyme Q10 (CoQ10) and biotin possess antioxidant and anti-inflammatory properties, and, in this study, their impact on insulin signaling is investigated in an aluminium chloride (AlCl3 ) model of AD. AD was induced by oral administration of AlCl3 (75 mg/kg) for 60 days. Biotin (2 mg/kg), CoQ10 (10 mg/kg), and their combination were supplemented concomitantly with AlCl3 for 60 days. Memory test and histological examination were performed. Brain levels of lipid peroxides, antioxidants (reduced glutathione and superoxide dismutase), inflammatory markers (tumor necrosis factor-α, interleukin-6 [IL-6], IL-1, and nuclear factor κB), and phosphorylated Akt (survival kinase) as well as protein levels of Aβ, IRS-1 (pTyr and pSer), and caspase-3 (apoptotic marker) were determined. AlCl3 resulted in impaired memory, significant increase in Aβ, lipid peroxides, inflammatory markers, caspase-3, and pSer-IRS-1, with significant reduction of the antioxidants, pTyr-IRS-1, and p-Akt reflecting Aβ-induced inflammation and defective insulin signaling. Histological examination revealed focal aggregations of inflammatory cells and neuronal degeneration. The biochemical deviations and histological changes were attenuated by the concomitant treatment with biotin and, to greater extent, with CoQ10 and the combination. In conclusion, biotin and CoQ10 could protect against AD via attenuating inflammatory response and enhancing insulin signaling.
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Affiliation(s)
- Hala Attia
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
- Department of Biochemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | | | - Sadeem Alaraidh
- College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Amirah Alotaibi
- College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Hazar Yacoub
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Raeesa Mohamad
- Department of Anatomy, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Maha Al-Amin
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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Singh NA, Bhardwaj V, Ravi C, Ramesh N, Mandal AKA, Khan ZA. EGCG Nanoparticles Attenuate Aluminum Chloride Induced Neurobehavioral Deficits, Beta Amyloid and Tau Pathology in a Rat Model of Alzheimer's Disease. Front Aging Neurosci 2018; 10:244. [PMID: 30150930 PMCID: PMC6099078 DOI: 10.3389/fnagi.2018.00244] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 07/24/2018] [Indexed: 02/05/2023] Open
Abstract
Rational: Alzheimer's disease (AD) is a neurodegenerative pathology characterized by the presence of neuritic plaques and neurofibrillary tangles. Aluminum has been reported to play an important role in the etiology and pathogenesis of this disease. Hence, the present study aimed to evaluate the neuroprotective role of epigallocatechin-gallate (EGCG) loaded nanoparticles (nanoEGCG) against aluminum chloride (AlCl3) induced neurobehavioral and pathological changes in AD induced rats. Method: 100 mg/kg body weight AlCl3 was administered orally for 60 days, which was followed by 10 mg/kg body weight free EGCG and nanoEGCG treatment for 30 days. Morris water maze, open field and novel object recognition tests were employed for neurobehavioral assessment of the rats. This was followed by histopathological assessment of the cortex and the hippocampus in the rat brain. For further validation biochemical, immunohistochemistry and western blot assays were carried out. Result: Aluminum exposure reduced the exploratory and locomotor activities in open field and significantly reduced the memory and learning curve of rats in Morris water maze and novel object recognition tests. These neurobehavioral impairments were significantly attenuated in nanoEGCG treated rats. Histopathological assessment of the cortex and hippocampus of AlCl3 induced rat brains showed the presence of both neuritic plaques and neurofibrillary tangles. In nanoEGCG treated rats this pathology was absent. Significant increase in biochemical, immunohistochemical and protein levels was noted in AlCl3 induced rats. While these levels were greatly reduced in nanoEGCG treated rats. Conclusion: In conclusion, this study strengthens the hypothesis that EGCG nanoparticles can reverse memory loss, neuritic plaque and neurofibrillary tangles formation.
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Affiliation(s)
- Neha Atulkumar Singh
- Department of Integrative Biology, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, India
| | - Vaishali Bhardwaj
- Department of Biotechnology, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, India
| | - Chandrika Ravi
- Department of Biotechnology, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, India
| | - Nithya Ramesh
- Department of Biotechnology, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, India
| | - Abul Kalam Azad Mandal
- Department of Biotechnology, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, India
| | - Zaved Ahmed Khan
- University Institute of Biotechnology, Chandigarh University, Mohali, India
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Wang X, Fan X, Yuan S, Jiao W, Liu B, Cao J, Jiang W. Chlorogenic acid protects against aluminium-induced cytotoxicity through chelation and antioxidant actions in primary hippocampal neuronal cells. Food Funct 2017; 8:2924-2934. [PMID: 28745369 DOI: 10.1039/c7fo00659d] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chlorogenic acid (CGA), a major polyphenolic component of many plants, displays antioxidant and neuroprotective properties in neurodegenerative diseases. To investigate whether CGA may influence aluminium (Al) induced cytotoxicity, aluminium chloride (50 μM Al) was administered in primary hippocampal neuronal cells presupplemented with CGA (10, 50 and 100 μM). Our study shows that the exposure to Al caused cell death, Al3+ accumulation, reactive oxygen species generation and mitochondrial damage in cells. The administration of CGA (50 μM) increased cell viability by 37.5%, decreased the levels of Al3+ by 26.0%, together with significantly weakening the oxidative damage compared with Al treatment alone. CGA protected neurons against Al-induced oxidative stress by increasing the expression of nuclear factor-E2-related factor 2 and its target phase 2 enzymes. The administration of CGA remarkably promoted the activities of superoxide dismutase, catalase, glutathione peroxidase, glutathione S-transferase, creatine kinase and acetylcholinesterase and attenuated the rate of ATP hydrolysis. Our finding shows that CGA has neuroprotective effects against Al-induced cytotoxicity by chelation and antioxidant activation.
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Affiliation(s)
- Xiaomei Wang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, People's Republic of China.
| | - Xinguang Fan
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, People's Republic of China.
| | - Shuzhi Yuan
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, People's Republic of China.
| | - Wenxiao Jiao
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, People's Republic of China.
| | - Bangdi Liu
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, People's Republic of China.
| | - Jiankang Cao
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, People's Republic of China.
| | - Weibo Jiang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, People's Republic of China.
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Ghorbel I, Amara IB, Ktari N, Elwej A, Boudawara O, Boudawara T, Zeghal N. Aluminium and Acrylamide Disrupt Cerebellum Redox States, Cholinergic Function and Membrane-Bound ATPase in Adult Rats and Their Offspring. Biol Trace Elem Res 2016; 174:335-346. [PMID: 27116954 DOI: 10.1007/s12011-016-0716-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 04/19/2016] [Indexed: 10/21/2022]
Abstract
Accumulation of aluminium and acrylamide in food is a major source of human exposure. Their adverse effects are well documented, but there is no information about the health problems arising from their combined exposure. The aim of the present study was to examine the possible neurotoxic effects after co-exposure of pregnant and lactating rats to aluminium and acrylamide in order to evaluate redox state, cholinergic function and membrane-bound ATPases in the cerebellum of adult rats and their progeny. Pregnant female rats have received aluminium (50 mg/kg body weight) via drinking water and acrylamide (20 mg/kg body weight) by gavage, either individually or in combination from the 14th day of pregnancy until day 14 after delivery. Exposure to these toxicants provoked an increase in malondialdehyde (MDA) and advanced oxidation protein product (AOPP) levels and a decrease in SOD, CAT, GPx, Na+K+-ATPase, Mg2+-ATPase and AChE activities in the cerebellum of mothers and their suckling pups. A reduction in GSH, NPSH and vitamin C levels was also observed. These changes were confirmed by histological results. Interestingly, co-exposure to these toxicants exhibited synergism based on physical and biochemical variables in the cerebellum of mothers and their progeny.
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Affiliation(s)
- Imen Ghorbel
- Animal Physiology Laboratory, LR 11/ ES-53 Sciences Faculty of Sfax, University of Sfax, BP 1171, 3000, Sfax, Tunisia
| | - Ibtissem Ben Amara
- Animal Physiology Laboratory, LR 11/ ES-53 Sciences Faculty of Sfax, University of Sfax, BP 1171, 3000, Sfax, Tunisia
| | - Naourez Ktari
- Laboratoire de Génie Enzymatique et de Microbiologie, Université de Sfax-Ecole Nationale d'Ingénieurs de Sfax, 3038, Sfax, Tunisia
| | - Awatef Elwej
- Animal Physiology Laboratory, LR 11/ ES-53 Sciences Faculty of Sfax, University of Sfax, BP 1171, 3000, Sfax, Tunisia
| | - Ons Boudawara
- Anatomopathology Laboratory, CHU Habib Bourguiba, University of Sfax, 3029, Sfax, Tunisia
| | - Tahia Boudawara
- Anatomopathology Laboratory, CHU Habib Bourguiba, University of Sfax, 3029, Sfax, Tunisia
| | - Najiba Zeghal
- Animal Physiology Laboratory, LR 11/ ES-53 Sciences Faculty of Sfax, University of Sfax, BP 1171, 3000, Sfax, Tunisia.
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Sharma D, Wani W, Sunkaria A, Kandimalla R, Sharma R, Verma D, Bal A, Gill K. Quercetin attenuates neuronal death against aluminum-induced neurodegeneration in the rat hippocampus. Neuroscience 2016; 324:163-76. [DOI: 10.1016/j.neuroscience.2016.02.055] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Revised: 02/22/2016] [Accepted: 02/23/2016] [Indexed: 11/21/2022]
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Sharma DR, Sunkaria A, Wani WY, Sharma RK, Verma D, Priyanka K, Bal A, Gill KD. Quercetin protects against aluminium induced oxidative stress and promotes mitochondrial biogenesis via activation of the PGC-1α signaling pathway. Neurotoxicology 2015; 51:116-37. [DOI: 10.1016/j.neuro.2015.10.002] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 09/03/2015] [Accepted: 10/05/2015] [Indexed: 01/13/2023]
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Singh T, Goel RK. Neuroprotective effect of Allium cepa L. in aluminium chloride induced neurotoxicity. Neurotoxicology 2015; 49:1-7. [DOI: 10.1016/j.neuro.2015.04.007] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 04/20/2015] [Accepted: 04/23/2015] [Indexed: 10/23/2022]
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Thenmozhi AJ, Raja TRW, Janakiraman U, Manivasagam T. Neuroprotective Effect of Hesperidin on Aluminium Chloride Induced Alzheimer’s Disease in Wistar Rats. Neurochem Res 2015; 40:767-76. [DOI: 10.1007/s11064-015-1525-1] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 01/14/2015] [Accepted: 01/20/2015] [Indexed: 12/30/2022]
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Laabbar W, Elgot A, Kissani N, Gamrani H. Chronic aluminum intoxication in rat induced both serotonin changes in the dorsal raphe nucleus and alteration of glycoprotein secretion in the subcommissural organ: Immunohistochemical study. Neurosci Lett 2014; 577:72-6. [DOI: 10.1016/j.neulet.2014.06.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 05/31/2014] [Accepted: 06/05/2014] [Indexed: 11/29/2022]
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Khan KA, Kumar N, Nayak PG, Nampoothiri M, Shenoy RR, Krishnadas N, Rao CM, Mudgal J. Impact of caffeic acid on aluminium chloride-induced dementia in rats. ACTA ACUST UNITED AC 2013; 65:1745-52. [PMID: 24236984 DOI: 10.1111/jphp.12126] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Accepted: 07/04/2013] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Literature favours the in vitro neuroprotective role of caffeic acid, a naturally derived polyphenolic compound. This study was aimed to investigate the role of caffeic acid in experimental model of Alzheimer's disease. METHODS Firstly, caffeic acid was tested for in vitro anticholinesterase potential using rat brain homogenate. Later, in vivo antidementia activity of caffeic acid was assessed against aluminium chloride (AlCl3 )-induced dementia in rats. Behavioural (Morris water maze test) and brain biochemical parameters (acetylcholinesterase (AChE), catalase, glutathione-S-transferase (GST) activity, glutathione (GSH) and nitrite levels) were assessed to correlate the cognitive function with cholinergic transmission and oxidative stress. KEY FINDINGS Rats administered with caffeic acid showed improved cognitive function in Morris water maze test. The antidementia activity of caffeic acid was confirmed by the reduction in brain AChE activity and nitrite levels. Further, caffeic acid corrected the diminished level of antioxidant enzymes such as catalase, GSH and GST in brain. CONCLUSION These findings suggest the antidementia activity of caffeic acid against AlCl3 -induced dementia in rats. The outcome of present study offers a wider scope to screen caffeic acid against neurodegeneration associated disorders.
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Affiliation(s)
- Kafeel A Khan
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal University, Manipal, Karnataka, India
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Bolognin S, Zatta P, Lorenzetto E, Valenti MT, Buffelli M. β-Amyloid-aluminum complex alters cytoskeletal stability and increases ROS production in cortical neurons. Neurochem Int 2013; 62:566-74. [DOI: 10.1016/j.neuint.2013.02.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Revised: 01/31/2013] [Accepted: 02/04/2013] [Indexed: 12/15/2022]
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Sharma DR, Wani WY, Sunkaria A, Kandimalla RJL, Verma D, Cameotra SS, Gill KD. Quercetin protects against chronic aluminum-induced oxidative stress and ensuing biochemical, cholinergic, and neurobehavioral impairments in rats. Neurotox Res 2012; 23:336-57. [PMID: 22918785 DOI: 10.1007/s12640-012-9351-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Revised: 08/07/2012] [Accepted: 08/10/2012] [Indexed: 01/12/2023]
Abstract
In this study, we investigated the protective effect of chronic quercetin (a natural flavanoid) administration against Al-induced cognitive impairments, oxidative damage, and cholinergic dysfunction in male Wistar rats. Al lactate (10 mg/kg b.wt./day) was administered intragastrically to rats which were pre-treated with quercetin (10 mg/kg b.wt./day, intragastrically) for 12 weeks. At the end of 6 or 12 weeks of the study, several behavioral parameters were carried out to evaluate cognitive functions. Further after 12 weeks of exposure, various biochemical tests and H&E staining were performed to assess the extent of oxidative damage and neurodegeneration, respectively. Al levels were also estimated in HC and CS regions of rat brain. Chronic administration of quercetin caused significant improvement in the muscle coordination, cognition, anxiety, locomotion, and initial exploratory patterns in Al-treated rats. Quercetin supplementation to Al-treated animals also reduced oxidative stress, decreased ROS production, increased MnSOD activity and glutathione levels with decreased lipid peroxidation and protein oxidation. It increased AChE activity and ATP levels in HC and CS regions of rat brain compared to Al-treated rats. Quercetin administration ameliorates Al-induced neurodegenerative changes in Al-treated rats as seen by H&E staining. Further with the help of atomic absorption spectrophotometer, we found that quercetin supplementation to Al-treated rats also decreases the accumulation of Al in the HC and CS regions of rat brain. Taken together the results of this study show that quercetin offers neuroprotection against Al-induced cognitive impairments, cholinergic dysfunction, and associated oxidative damage in rats.
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Affiliation(s)
- Deep Raj Sharma
- Department of Biochemistry, Postgraduate Institute of Medical Education and Research, Chandigarh, 160 012, India
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Chakrabarty M, Bhat P, Kumari S, D’Souza A, Bairy KL, Chaturvedi A, Natarajan A, Rao MKG, Kamath S. Cortico-hippocampal salvage in chronic aluminium induced neurodegeneration by Celastrus paniculatus seed oil: Neurobehavioural, biochemical, histological study. J Pharmacol Pharmacother 2012; 3:161-71. [PMID: 22629092 PMCID: PMC3356958 DOI: 10.4103/0976-500x.95520] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVE To investigate the effects of Celastrus paniculatus seed oil in preventing the onset of chronic aluminum induced cortico-hippocampal neurodegeneration and oxidative stress. MATERIALS AND METHODS An animal model of senile dementia of Alzheimer's type was produced by administering aluminum as aluminum chloride (4.2 mg/kg) intraperitoneally to male Wistar rats for 60 days and results compared to untreated control. Neurobehavioral investigations of Morris water maze tests, passive avoidance test, rotarod test and biochemical estimations of acetylcholineterase, malondialdehyde, glucose-6-phosphate dehydrogenase, superoxide dismutase, and hemoglobin in blood were performed fortnightly which gauged the extent of global oxidative stress and progressive neural damage. Findings were fortified by the above enzyme assays and histology of brain at necropsy. Prophylactic oral C. paniculatus in two doses 0.5 ml and 1 ml, were given to animals and the results were analyzed in comparison to a similar rodent model with standard drug donepezil (0.5 mg/kg) intraperitoneally. RESULTS C. paniculatus showed a significant prevention in onset of aluminum induced neural insult and overall systemic oxidative stress which was corroborated by the enlisted neurobehavioral, biochemical, and histological evidence. CONCLUSION C. paniculatus is a putative decelerator of Al-mediated Alzheimer's like pathobiology.
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Affiliation(s)
- Mrinmoy Chakrabarty
- Department of Pharmacology, Kasturba Medical College, Manipal, Karnataka, India
| | - Priyanka Bhat
- Department of Pharmacology, Kasturba Medical College, Manipal, Karnataka, India
| | - Sweta Kumari
- Department of Pharmacology, Kasturba Medical College, Manipal, Karnataka, India
| | - Avin D’Souza
- Department of Pharmacology, Kasturba Medical College, Manipal, Karnataka, India
| | - K. L. Bairy
- Department of Pharmacology, Kasturba Medical College, Manipal, Karnataka, India
| | - Abhishek Chaturvedi
- Department of Biochemistry, Kasturba Medical College, Manipal, Karnataka, India
| | - Archana Natarajan
- Department of Biochemistry, Kasturba Medical College, Manipal, Karnataka, India
| | - Mohandas K. G. Rao
- Department of Anatomy, Melaka Manipal Medical College, Manipal University, Manipal, Karnataka, India
| | - Shobha Kamath
- Department of Biochemistry, Kasturba Medical College, Manipal, Karnataka, India
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Kushkuley J, Metkar S, Chan WKH, Lee S, Shea TB. Aluminum induces neurofilament aggregation by stabilizing cross-bridging of phosphorylated c-terminal sidearms. Brain Res 2010; 1322:118-23. [PMID: 20132798 DOI: 10.1016/j.brainres.2010.01.075] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2009] [Revised: 01/24/2010] [Accepted: 01/27/2010] [Indexed: 01/08/2023]
Abstract
Exposure to neurotoxin aluminum neurotoxicity is accompanied by the perikaryal accumulation of tangles of phosphorylated neurofilaments (NFs). We examined their formation and reversibility under cell-free conditions. AlCl3 induced dose-dependent formation of NF aggregates, ultimately incorporating 100% of detectable NFs. The same concentration of CaCl2 induced approximately 25% of NFs to form longitudinal dimers and did not induce aggregation. AlCl3 induced similar percentages of aggregates in the presence or absence of CaCl2, and CaCl2 could not reduce pre-formed aggregates. CaCl(2)-induced dimers and AlCl(3)-induced aggregates were prevented by prior NF dephosphorylation. While CaCl(2)-induced dimers were dissociated by phosphatase treatment, AlCl(3)-induced aggregates were only reduced by approximately 50%, suggesting that aggregates may sequester phosphorylation sites. Since phosphatases regulate NF phosphorylation within perikarya, inhibition of NF dephosphorylation by aluminum would promote perikaryal NF phosphorylation and foster precocious phospho-dependent NF-NF associations. These findings are consistent with the notion that prolonged interactions induced among phospho-NFs by the trivalent aluminum impairs axonal transport and promotes perikaryal aggregation.
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Affiliation(s)
- Jacob Kushkuley
- Center for Cellular Neurobiology and Neurodegeneration Research, Departments of Biological Sciences and Biochemistry, University of Massachusetts Lowell, Lowell, MA 01854, USA
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Kumar V, Bal A, Gill KD. Impairment of mitochondrial energy metabolism in different regions of rat brain following chronic exposure to aluminium. Brain Res 2008; 1232:94-103. [PMID: 18691561 DOI: 10.1016/j.brainres.2008.07.028] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2008] [Revised: 07/03/2008] [Accepted: 07/08/2008] [Indexed: 11/28/2022]
Abstract
The present study was designed with an aim to evaluate the effects of chronic aluminium exposure (10 mg/kg b.wt, intragastrically for 12 weeks) on mitochondrial energy metabolism in different regions of rat brain in vivo. Mitochondrial preparations from aluminium treated rats revealed significant decrease in the activity of various electron transport complexes viz. cytochrome oxidase, NADH cytochrome c reductase and succinic dehydrogenase as well, in the hippocampus region. The decrease in the activity of these respiratory complexes was also seen in the other two regions viz. corpus striatum and cerebral cortex, but to a lesser extent. This decrease in the activities of electron transport complexes in turn affected the ATP synthesis and ATP levels adversely in the mitochondria isolated from aluminium treated rat brain regions. We also studied the spectral properties of the mitochondrial cytochromes viz. cyt a, cyt b, cyt c1, and cyt c in both control and treated rat brains. The various cytochrome levels were found to be decreased following 12 weeks of aluminium exposure. Further, these impairments in mitochondrial functions may also be responsible for the production of reactive oxygen species and impaired antioxidant defense system as observed in our study. The electron micrographs of neuronal cells depicted morphological changes in mitochondria as well as nucleus only from hippocampus and corpus striatum regions following 12 weeks exposure to aluminium. The present study thus highlights the significance of altered mitochondrial energy metabolism and increased ROS production as a result of chronic aluminium exposure in different regions of the rat brain.
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Affiliation(s)
- Vijay Kumar
- Department of Biochemistry, Postgraduate Institute of Medical Education and Research, Chandigarh, 160 012, India
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Shahraki M, Mony EP, Asl SZ, Sarkaki A, Shahraki A. Effects of Aluminium Chloride Injection in Lateral Ventricle on Serum Gonadothropines, Testosterone and Spermatogenesis in Rats. J of Medical Sciences 2008. [DOI: 10.3923/jms.2008.410.414] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Gonçalves PP, Silva VS. Does neurotransmission impairment accompany aluminium neurotoxicity? J Inorg Biochem 2007; 101:1291-338. [PMID: 17675244 DOI: 10.1016/j.jinorgbio.2007.06.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2007] [Revised: 05/25/2007] [Accepted: 06/05/2007] [Indexed: 02/05/2023]
Abstract
Neurobehavioral disorders, except their most overt form, tend to lie beyond the reach of clinicians. Presently, the use of molecular data in the decision-making processes is limited. However, as details of the mechanisms of neurotoxic action of aluminium become clearer, a more complete picture of possible molecular targets of aluminium can be anticipated, which promises better prediction of the neurotoxicological potential of aluminium exposure. In practical terms, a critical analysis of current data on the effects of aluminium on neurotransmission can be of great benefit due to the rapidly expanding knowledge of the neurotoxicological potential of aluminium. This review concludes that impairment of neurotransmission is a strong predictor of outcome in neurobehavioral disorders. Key questions and challenges for future research into aluminium neurotoxicity are also identified.
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Affiliation(s)
- Paula P Gonçalves
- Departamento de Biologia, Campus Universitário de Santiago, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
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