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Verma H, Kaur S, Kaur S, Gangwar P, Dhiman M, Mantha AK. Role of Cytoskeletal Elements in Regulation of Synaptic Functions: Implications Toward Alzheimer's Disease and Phytochemicals-Based Interventions. Mol Neurobiol 2024:10.1007/s12035-024-04053-3. [PMID: 38491338 DOI: 10.1007/s12035-024-04053-3] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 02/13/2024] [Indexed: 03/18/2024]
Abstract
Alzheimer's disease (AD), a multifactorial disease, is characterized by the accumulation of neurofibrillary tangles (NFTs) and amyloid beta (Aβ) plaques. AD is triggered via several factors like alteration in cytoskeletal proteins, a mutation in presenilin 1 (PSEN1), presenilin 2 (PSEN2), amyloid precursor protein (APP), and post-translational modifications (PTMs) in the cytoskeletal elements. Owing to the major structural and functional role of cytoskeletal elements, like the organization of axon initial segmentation, dendritic spines, synaptic regulation, and delivery of cargo at the synapse; modulation of these elements plays an important role in AD pathogenesis; like Tau is a microtubule-associated protein that stabilizes the microtubules, and it also causes inhibition of nucleo-cytoplasmic transportation by disrupting the integrity of nuclear pore complex. One of the major cytoskeletal elements, actin and its dynamics, regulate the dendritic spine structure and functions; impairments have been documented towards learning and memory defects. The second major constituent of these cytoskeletal elements, microtubules, are necessary for the delivery of the cargo, like ion channels and receptors at the synaptic membranes, whereas actin-binding protein, i.e., Cofilin's activation form rod-like structures, is involved in the formation of paired helical filaments (PHFs) observed in AD. Also, the glial cells rely on their cytoskeleton to maintain synaptic functionality. Thus, making cytoskeletal elements and their regulation in synaptic structure and function as an important aspect to be focused for better management and targeting AD pathology. This review advocates exploring phytochemicals and Ayurvedic plant extracts against AD by elucidating their neuroprotective mechanisms involving cytoskeletal modulation and enhancing synaptic plasticity. However, challenges include their limited bioavailability due to the poor solubility and the limited potential to cross the blood-brain barrier (BBB), emphasizing the need for targeted strategies to improve therapeutic efficacy.
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Affiliation(s)
- Harkomal Verma
- Department of Zoology, School of Basic Sciences, Central University of Punjab, Village Ghudda, VPO - Ghudda, Bathinda, 151 401, Punjab, India
| | - Sharanjot Kaur
- Department of Microbiology, School of Basic Sciences, Central University of Punjab, Village Ghudda, Bathinda, Punjab, India
| | - Sukhchain Kaur
- Department of Microbiology, School of Basic Sciences, Central University of Punjab, Village Ghudda, Bathinda, Punjab, India
| | - Prabhakar Gangwar
- Department of Zoology, School of Basic Sciences, Central University of Punjab, Village Ghudda, VPO - Ghudda, Bathinda, 151 401, Punjab, India
| | - Monisha Dhiman
- Department of Microbiology, School of Basic Sciences, Central University of Punjab, Village Ghudda, Bathinda, Punjab, India
| | - Anil Kumar Mantha
- Department of Zoology, School of Basic Sciences, Central University of Punjab, Village Ghudda, VPO - Ghudda, Bathinda, 151 401, Punjab, India.
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Tientcheu JPD, Ngueguim FT, Gounoue RK, Mbock MA, Ngapout R, Kandeda AK, Dimo T. The extract of Sclerocarya birrea, Nauclea latifolia, and Piper longum mixture ameliorates diabetes-associated cognitive dysfunction. Metab Brain Dis 2023; 38:2773-2796. [PMID: 37821784 DOI: 10.1007/s11011-023-01291-7] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 09/06/2023] [Indexed: 10/13/2023]
Abstract
Diabetes-associated cognitive dysfunction is linked to chronic hyperglycemia, oxidative stress, inflammation, cholinergic dysfunction, and neuronal degeneration. We investigated the antidiabetic and neuroprotective activity of a mixture of Sclerocarya birrea, Nauclea latifolia, and Piper longum (SNP) in type 2 diabetic (T2D) rat model-induced memory impairment. Fructose (10%) and streptozotocin (35 mg/kg) were used to induce T2D in male Wistar rats. Diabetic animals received distilled water, metformin (200 mg/kg), or SNP mixture (75, 150, or 300 mg/kg). HPLC-MS profiling of the mixture was performed. Behavioral testing was conducted using the Y-maze, NORT, and Morris water mazes to assess learning and memory. Biochemical markers were evaluated, including carbohydrate metabolism, oxidative/nitrative stress, pro-inflammatory markers, and acetylcholinesterase activity. Histopathological examination of the pancreas and hippocampus was also performed. Fructose/STZ administration resulted in T2D, impaired short- and long-term memory, significantly increased oxidative/nitrative stress, pro-inflammatory cytokine levels, acetylcholinesterase activity (AChE), hippocampal neuronal loss and degeneration in CA1 and CA3 subfields, and neuronal vacuolation in DG. SNP mixture at 150 and 300 mg/kg significantly improved blood glucose and memory function in diabetic rats. The mixture reduced oxidative/nitrative stress and increased endogenous antioxidant levels. It also reduced serum IL-1β, INF-γ and TNF-α levels and ameliorated AChE activity. Histologically, SNP protected hippocampus neurons against T2D-induced neuronal necrosis and degeneration. We conclude that the aqueous extract of SNP mixture has antidiabetic and neuroprotective activities thanks to active metabolites identified in the plant mixture, which consequently normalized blood glucose, protected hippocampus neurons, and improved memory function in diabetic rats.
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Affiliation(s)
| | - Florence Tsofack Ngueguim
- Laboratory of Animal Physiology, Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaoundé, Cameroon.
| | - Racéline Kamkumo Gounoue
- Laboratory of Animal Physiology, Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaoundé, Cameroon
| | - Michel Arnaud Mbock
- Department of Biochemistry, Laboratory of Biochemistry, Faculty of Science, University of Douala, PO Box 24 157, Douala, Cameroon
| | - Rodrigue Ngapout
- Laboratory of Animal Physiology, Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaoundé, Cameroon
| | - Antoine Kavaye Kandeda
- Laboratory of Animal Physiology, Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaoundé, Cameroon
| | - Théophile Dimo
- Laboratory of Animal Physiology, Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaoundé, Cameroon
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Wu M, Li Y, Miao Y, Qiao H, Wang Y. Exploring the efficient natural products for Alzheimer's disease therapy via Drosophila melanogaster (fruit fly) models. J Drug Target 2023; 31:817-831. [PMID: 37545435 DOI: 10.1080/1061186x.2023.2245582] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 07/11/2023] [Accepted: 07/31/2023] [Indexed: 08/08/2023]
Abstract
Alzheimer's disease (AD) is a grievous neurodegenerative disorder and a major form of senile dementia, which is partially caused by abnormal amyloid-beta peptide deposition and Tau protein phosphorylation. But until now, the exact pathogenesis of AD and its treatment strategy still need to investigate. Fortunately, natural products have shown potential as therapeutic agents for treating symptoms of AD due to their neuroprotective activity. To identify the excellent lead compounds for AD control from natural products of herbal medicines, as well as, detect their modes of action, suitable animal models are required. Drosophila melanogaster (fruit fly) is an important model for studying genetic and cellular biological pathways in complex biological processes. Various Drosophila AD models were broadly used for AD research, especially for the discovery of neuroprotective natural products. This review focused on the research progress of natural products in AD disease based on the fruit fly AD model, which provides a reference for using the invertebrate model in developing novel anti-AD drugs.
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Affiliation(s)
- Mengdi Wu
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Ying Li
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Yaodong Miao
- Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Huanhuan Qiao
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Yiwen Wang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
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Abolhasani F, Pourshojaei Y, Mohammadi F, Esmaeilpour K, Asadipour A, Ilaghi M, Shabani M. Exploring the potential of a novel phenoxyethyl piperidine derivative with cholinesterase inhibitory properties as a treatment for dementia: Insights from STZ animal model of dementia. Neurosci Lett 2023; 810:137332. [PMID: 37302565 DOI: 10.1016/j.neulet.2023.137332] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/22/2023] [Accepted: 06/06/2023] [Indexed: 06/13/2023]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disease, often characterized by progressive deficits in memory and cognitive functions. Cholinesterase inhibitors have been introduced as promising agents to enhance cognition and memory in both human patients and animal models of AD. In the current study, we assessed the effects of a synthetic phenoxyethyl piperidine derivative, compound 7c, as a novel dual inhibitor of acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE), on learning and memory, as well as serum and hippocampal AChE levels in an animal model of AD. The model of dementia was induced by intracerebroventricular injection of streptozotocin (STZ, 2 mg/kg) to male Wistar rats. STZ-treated rats received compound 7c (3, 30, and 300 µg/kg) for five consecutive days. Passive avoidance (PA) learning and memory, as well as spatial learning and memory using Morris water maze, were evaluated. The level of AChE was measured in the serum and the left and right hippocampus. Findings demonstrated that compound 7c (300 µg/kg) was able to reverse STZ-induced impairments in PA memory, while also reduced the increased AChE level in the left hippocampus. Taken together, compound 7c appeared to act as a central AChE inhibitor, and its role in alleviating cognitive deficits in the AD animal model suggests that it may have therapeutic potential in AD dementia. Further research is required to assess the effectiveness of compound 7c in more reliable models of AD in light of these preliminary findings.
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Affiliation(s)
- Fatemeh Abolhasani
- Department of Medicinal Chemistry, Faculty of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran
| | - Yaghoub Pourshojaei
- Department of Medicinal Chemistry, Faculty of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran; Extremophile and Productive Microorganisms Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | | | - Khadijeh Esmaeilpour
- Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario, Canada; Institute of Neuropharmacology, Kerman Neuroscience Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Ali Asadipour
- Department of Medicinal Chemistry, Faculty of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran
| | - Mehran Ilaghi
- Institute of Neuropharmacology, Kerman Neuroscience Research Center, Kerman University of Medical Sciences, Kerman, Iran.
| | - Mohammad Shabani
- Institute of Neuropharmacology, Kerman Neuroscience Research Center, Kerman University of Medical Sciences, Kerman, Iran.
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Basta M, Saleh SR, Aly RG, Dief AE. Resveratrol ameliorates the behavioural and molecular changes in rats exposed to uninephrectomy: role of hippocampal SIRT1, BDNF and AChE. J Physiol Biochem 2022:10.1007/s13105-022-00937-x. [DOI: 10.1007/s13105-022-00937-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 11/25/2022] [Indexed: 12/11/2022]
Abstract
AbstractSubtle memory and cognitive changes may occur in uninephrectomized (Unix) patients long before the development of chronic kidney disease, such changes may be unnoticed. The dietary polyphenol, Resveratrol, displayed various neuroprotective effects, its role in chronic kidney disease is an area of intense studies. This work was designed to investigate the behavioural and molecular changes that may occur following 7 months of Unix in rats, and to determine whether Resveratrol intake can improve such pathology. Male Wistar rats were divided into three groups: sham operated, Unix and Unix group treated with Resveratrol (20 mg/kg/day). Rats were subjected to series of behavioural testing, different biochemical parameters along with RT-PCR and immunohistochemistry of the hippocampal tissue to track the development of functional or structural brain changes. Anxiety behaviour and reduced spatial memory performance were observed in rats 7 months post-nephrectomy; these deficits were remarkably reversed with Resveratrol. Among the species typical behaviour, burrowing was assessed; it showed significant impairment post-nephrectomy. Resveratrol intake was almost able to increase the burrowing behaviour. Decreased SIRT1 in immune-stained sections, oxidative stress, inflammatory changes, and increased AChE activity in hippocampal homogenates were found in Unix rats, and Resveratrol once more was capable to reverse such pathological changes. This work has investigated the occurrence of behavioural and structural brain changes 7 months following Unix and underlined the importance of Resveratrol to counterbalance the behavioural impairment, biochemical and brain pathological changes after uninephrectomy. These findings may raise the possible protective effects of Resveratrol intake in decreased kidney function.
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Islam Z, Islam J, Tony SR, Anjum A, Ferdous R, Roy AK, Hossain S, Salam KA, Nikkon F, Hossain K, Saud ZA. Mulberry leaves juice attenuates arsenic-induced neurobehavioral and hepatic disorders in mice. Food Sci Nutr 2022; 10:4360-4370. [PMID: 36514774 PMCID: PMC9731539 DOI: 10.1002/fsn3.3028] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/15/2022] [Accepted: 07/27/2022] [Indexed: 12/16/2022] Open
Abstract
Arsenic (As) poisoning has caused an environmental catastrophe in Bangladesh as millions of people are exposed to As-contaminated drinking water. Chronic As-exposure causes depression, memory impairment, and liver injury in experimental animals. This study was carried out to assess the protective effect of mulberry leaves juice (Mul) against As-induced neurobehavioral and hepatic dysfunctions in Swiss albino mice. As-exposed mice spent significantly reduced time in open arms and increased time spent in closed arms in the elevated plus maze (EPM) test, whereas they took significantly longer time to find the hidden platform in the Morris water maze (MWM) test and spent significantly less time in the desired quadrant when compared to the control mice. A significant reduction in serum BChE activity, an indicator of As-induced neurotoxicity-associated behavioral changes, was noted in As-exposed mice compared to control mice. Supplementation of Mul to As-exposed mice significantly increased serum BChE activity, increased the time spent in open arms and reduced time latency to find the hidden platform, and stayed more time in the target quadrant in EPM and MWM tests, respectively, compared to As-exposed-only mice. Also, a significantly reduced activity of BChE, AChE, SOD, and GSH in brain, and elevated ALP, AST, and ALT activities in serum were noted in As-exposed mice when compared to control mice. Mul supplementation significantly restored the activity of these enzymes and also recovered As-induced alterations in hepatic tissue in As-exposed mice. In conclusion, this study suggested that mulberry leaves juice attenuates As-induced neurobehavioral and hepatic dysfunction in mice.
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Affiliation(s)
- Zohurul Islam
- Department of Biochemistry and Molecular BiologyUniversity of RajshahiRajshahiBangladesh
| | - Jahidul Islam
- Department of Biochemistry and Molecular BiologyUniversity of RajshahiRajshahiBangladesh
| | - Selim Reza Tony
- Department of Biochemistry and Molecular BiologyUniversity of RajshahiRajshahiBangladesh
| | - Adiba Anjum
- Department of Biochemistry and Molecular BiologyUniversity of RajshahiRajshahiBangladesh,Department of Biochemistry and Molecular BiologyMawlana Bhashani Science and Technology UniversityTangailBangladesh
| | - Rafia Ferdous
- Department of PharmacyUniversity of RajshahiRajshahiBangladesh
| | - Apurba Kumar Roy
- Department of Genetic Engineering & BiotechnologyUniversity of RajshahiRajshahiBangladesh
| | - Shakhawoat Hossain
- Department of Biochemistry and Molecular BiologyUniversity of RajshahiRajshahiBangladesh
| | - Kazi Abdus Salam
- Department of Biochemistry and Molecular BiologyUniversity of RajshahiRajshahiBangladesh
| | - Farjana Nikkon
- Department of Biochemistry and Molecular BiologyUniversity of RajshahiRajshahiBangladesh
| | - Khaled Hossain
- Department of Biochemistry and Molecular BiologyUniversity of RajshahiRajshahiBangladesh
| | - Zahangir Alam Saud
- Department of Biochemistry and Molecular BiologyUniversity of RajshahiRajshahiBangladesh
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Dutta BJ, Singh S, Seksaria S, Das Gupta G, Singh A. Inside the diabetic brain: Insulin resistance and molecular mechanism associated with cognitive impairment and its possible therapeutic strategies. Pharmacol Res 2022; 182:106358. [PMID: 35863719 DOI: 10.1016/j.phrs.2022.106358] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [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: 05/08/2022] [Revised: 07/02/2022] [Accepted: 07/15/2022] [Indexed: 01/21/2023]
Abstract
Type 2 diabetes mellitus (T2DM) the most prevalent metabolic disease that has evolved into a major public health issue. Concerning about its secondary complications, a growing body of evidence links T2DM to cognitive impairment and neurodegenerative disorders. The underlying pathology behind this secondary complication disease is yet to be fully known. Nonetheless, they are likely to be associated with poor insulin signaling as a result of insulin resistance. We have combed through a rising body of literature on insulin signaling in the normal and diabetic brains along with various factors like insulin resistance, hyperglycemia, obesity, oxidative stress, neuroinflammation and Aβ plaques which can act independently or synergistically to link T2DM with cognitive impairments. Finally, we explored several pharmacological and non-pharmacological methods in the hopes of accelerating the rational development of medications for cognitive impairment in T2DM by better understanding these shared pathways.
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Affiliation(s)
- Bhaskar Jyoti Dutta
- Department of Pharmacology, ISF College of Pharmacy, GT Road, Ghal Kalan, Moga 142001, Punjab, India
| | - Shamsher Singh
- Department of Pharmacology, ISF College of Pharmacy, GT Road, Ghal Kalan, Moga 142001, Punjab, India
| | - Sanket Seksaria
- Department of Pharmacology, ISF College of Pharmacy, GT Road, Ghal Kalan, Moga 142001, Punjab, India
| | - Ghanshyam Das Gupta
- Department of Pharmacology, ISF College of Pharmacy, GT Road, Ghal Kalan, Moga 142001, Punjab, India
| | - Amrita Singh
- Department of Pharmacology, ISF College of Pharmacy, GT Road, Ghal Kalan, Moga 142001, Punjab, India.
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Zare Z, Zarbakhsh S, Tehrani M, Mohammadi M. Neuroprotective Effects of Treadmill Exercise in Hippocampus of Ovariectomized and Diabetic Rats. Neuroscience 2022; 496:64-72. [PMID: 35700817 DOI: 10.1016/j.neuroscience.2022.06.012] [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: 12/02/2021] [Revised: 06/03/2022] [Accepted: 06/07/2022] [Indexed: 11/26/2022]
Abstract
To determine detrimental effects of estrogen and insulin deficiencies on hippocampus, we examined apoptosis-induced neuronal damage and cholinergic system in ovariectomized and/or diabetic rat hippocampus. Possible neuroprotective effects of treadmill exercise were also investigated. Adult female Wistar rats were randomly divided into four groups (n = 5 rats/group) as follows: control, ovariectomized (Ovx), diabetic (Dia, streptozotocin (STZ) 60 mg/kg; i.p.), and Ovx + Dia groups. Each group was further subdivided into exercise and non-exercise groups. Animals in exercise groups were subjected to treadmill training, while those in non-exercise groups were placed on the stationary treadmill for 4 weeks (5 days/week). Apoptosis-related protein levels (i.e. Bax, Bcl-2, and caspase-3), number of survived neurons, and acetylcholinesterase (AChE) activity in the hippocampus were measured using Western blotting, Cresyl Violet staining, and Ellman assay, respectively. Both ovariectomy and diabetes increased expression of Bax and caspase-3 and decreased expression of Bcl-2 at protein levels. In addition, a significant decrease in the number of survived neurons was observed in both Ovx and Dia groups, while AChE activity was lower only in the Dia group. The Ovx + Dia group showed stronger apoptosis-induced neuropathology and inhibition of AChE activity. Treadmill exercise attenuated apoptosis-induced neuropathology in the Ovx and Dia groups and recovered AChE activity in the Dia group. Neuroprotective effects of treadmill exercise were mediated by inhibition of apoptosis. Moderate exercise protocol had no beneficial anti-apoptotic and neuroprotective effects in ovariectomized-diabetic rats.
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Affiliation(s)
- Zohreh Zare
- Department of Anatomical Sciences, Molecular and Cell Biology Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Sam Zarbakhsh
- Nervous System Stem Cells Research Center, Semnan University of Medical Sciences, Semnan, Iran
| | - Mohsen Tehrani
- Department of Immunology, Molecular and Cell Biology Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Moslem Mohammadi
- Department of Physiology, Molecular and Cell Biology Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.
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Asejeje FO, Ajayi BO, Abiola MA, Samuel O, Asejeje GI, Ajiboye EO, Ajayi AM. Sodium benzoate induces neurobehavioral deficits and brain oxido‐inflammatory stress in male Wistar rats: Ameliorative role of ascorbic acid. J Biochem Mol Toxicol 2022; 36:e23010. [DOI: 10.1002/jbt.23010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 12/11/2021] [Accepted: 01/04/2022] [Indexed: 12/21/2022]
Affiliation(s)
- Folake O. Asejeje
- Department of Chemical Sciences, Faculty of Natural Sciences Ajayi Crowther University Oyo Nigeria
| | - Babajide O. Ajayi
- Department of Chemical Sciences, Faculty of Natural Sciences Ajayi Crowther University Oyo Nigeria
| | - Michael A. Abiola
- Department of Biochemistry, Faculty of Basic Medical Sciences University of Ibadan Ibadan Nigeria
| | - Omolola Samuel
- Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences University of Ibadan Ibadan Nigeria
| | - Gbolahan I. Asejeje
- Department of Chemistry, Faculty of Science University of Ibadan Ibadan Nigeria
| | - Ebenezer O. Ajiboye
- Department of Physiology and Anatomy, Faculty of Basic Medical Sciences Ajayi Crowther University Oyo Nigeria
| | - Abayomi M. Ajayi
- Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences University of Ibadan Ibadan Nigeria
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Rahman MM, Rahaman MS, Islam MR, Rahman F, Mithi FM, Alqahtani T, Almikhlafi MA, Alghamdi SQ, Alruwaili AS, Hossain MS, Ahmed M, Das R, Emran TB, Uddin MS. Role of Phenolic Compounds in Human Disease: Current Knowledge and Future Prospects. Molecules 2021; 27:233. [PMID: 35011465 PMCID: PMC8746501 DOI: 10.3390/molecules27010233] [Citation(s) in RCA: 186] [Impact Index Per Article: 62.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/24/2021] [Accepted: 12/27/2021] [Indexed: 02/02/2023] Open
Abstract
Inflammation is a natural protective mechanism that occurs when the body's tissue homeostatic mechanisms are disrupted by biotic, physical, or chemical agents. The immune response generates pro-inflammatory mediators, but excessive output, such as chronic inflammation, contributes to many persistent diseases. Some phenolic compounds work in tandem with nonsteroidal anti-inflammatory drugs (NSAIDs) to inhibit pro-inflammatory mediators' activity or gene expression, including cyclooxygenase (COX). Various phenolic compounds can also act on transcription factors, such as nuclear factor-κB (NF-κB) or nuclear factor-erythroid factor 2-related factor 2 (Nrf-2), to up-or downregulate elements within the antioxidant response pathways. Phenolic compounds can inhibit enzymes associated with the development of human diseases and have been used to treat various common human ailments, including hypertension, metabolic problems, incendiary infections, and neurodegenerative diseases. The inhibition of the angiotensin-converting enzyme (ACE) by phenolic compounds has been used to treat hypertension. The inhibition of carbohydrate hydrolyzing enzyme represents a type 2 diabetes mellitus therapy, and cholinesterase inhibition has been applied to treat Alzheimer's disease (AD). Phenolic compounds have also demonstrated anti-inflammatory properties to treat skin diseases, rheumatoid arthritis, and inflammatory bowel disease. Plant extracts and phenolic compounds exert protective effects against oxidative stress and inflammation caused by airborne particulate matter, in addition to a range of anti-inflammatory, anticancer, anti-aging, antibacterial, and antiviral activities. Dietary polyphenols have been used to prevent and treat allergy-related diseases. The chemical and biological contributions of phenolic compounds to cardiovascular disease have also been described. This review summarizes the recent progress delineating the multifunctional roles of phenolic compounds, including their anti-inflammatory properties and the molecular pathways through which they exert anti-inflammatory effects on metabolic disorders. This study also discusses current issues and potential prospects for the therapeutic application of phenolic compounds to various human diseases.
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Affiliation(s)
- Md. Mominur Rahman
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh; (M.M.R.); (M.S.R.); (M.R.I.); (F.R.); (F.M.M.); (M.S.H.); (M.A.)
| | - Md. Saidur Rahaman
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh; (M.M.R.); (M.S.R.); (M.R.I.); (F.R.); (F.M.M.); (M.S.H.); (M.A.)
| | - Md. Rezaul Islam
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh; (M.M.R.); (M.S.R.); (M.R.I.); (F.R.); (F.M.M.); (M.S.H.); (M.A.)
| | - Firoza Rahman
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh; (M.M.R.); (M.S.R.); (M.R.I.); (F.R.); (F.M.M.); (M.S.H.); (M.A.)
| | - Faria Mannan Mithi
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh; (M.M.R.); (M.S.R.); (M.R.I.); (F.R.); (F.M.M.); (M.S.H.); (M.A.)
| | - Taha Alqahtani
- Department of Pharmacology, College of Pharmacy, King Khalid University, Abha 62529, Saudi Arabia;
| | - Mohannad A. Almikhlafi
- Department of Pharmacology and Toxicology, Taibah University, Madinah 41477, Saudi Arabia;
| | - Samia Qasem Alghamdi
- Department of Biology, Faculty of Science, Al-Baha University, Albaha 65527, Saudi Arabia;
| | - Abdullah S Alruwaili
- Department of Clinical Laboratory, College of Applied Medical Science, Northern Border University, P.O. Box 1321, Arar 9280, Saudi Arabia;
| | - Md. Sohel Hossain
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh; (M.M.R.); (M.S.R.); (M.R.I.); (F.R.); (F.M.M.); (M.S.H.); (M.A.)
| | - Muniruddin Ahmed
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh; (M.M.R.); (M.S.R.); (M.R.I.); (F.R.); (F.M.M.); (M.S.H.); (M.A.)
| | - Rajib Das
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh;
| | - Talha Bin Emran
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong 4381, Bangladesh
| | - Md. Sahab Uddin
- Department of Pharmacy, Southeast University, Dhaka 1213, Bangladesh
- Pharmakon Neuroscience Research Network, Dhaka 1207, Bangladesh
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11
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Abdel-Naby DH, Deghiedy NM, Rashed RR, El-Ghazaly MA. Tailoring of chitosan/diacrylated pluronic system as a versatile nanoplatform for the amelioration of radiation-induced cognitive dysfunction. Int J Biol Macromol 2021; 193:1507-1521. [PMID: 34740686 DOI: 10.1016/j.ijbiomac.2021.10.214] [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: 08/13/2021] [Revised: 10/20/2021] [Accepted: 10/28/2021] [Indexed: 11/26/2022]
Abstract
Rutin (RUT) is a biologically active flavonoid that is reported to modulate radiation-induced brain dysfunctions. However, RUT's poor water solubility and low brain bioavailability limit its clinical use. To increase its brain bioavailability, RUT was loaded onto nanoplatforms based on chitosan/diacrylated pluronic (CS/DA-PLUR) nanogels synthesized by gamma radiation. The optimized formulation was investigated as a carrier system for RUT. Based on pilot experiments' results, the cranial radiation (CR) dose that induced cognitive dysfunction was selected. In the main experiment, rats were pre-treated orally with either free RUT or RUT-CS/DA-PLUR. Rats' cognitive and motor functions were assessed; 24 h later, rats were sacrificed, and the whole brain was separated for histopathological examination and biochemical estimation of brain content of acetylcholine esterase (AChE), neurotransmitters, oxidative stress markers, and interleukin-1β. CR produced prominent impairment in spatial and non-spatial learning memory, motor coordination, and muscular strength. Moreover, histopathological and biochemical alterations in brain contents of neurotransmitters, oxidative stress, and interleukin-1β were induced by CR. Conversely, RUT-CS/DA-PLUR, but not free RUT, successfully guarded against all the detrimental effects induced by CR. Based on the current findings, loading of RUT enhanced its bioavailability and therapeutic effectiveness by restoring the cognitive functions impaired by CR.
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Affiliation(s)
- Doaa H Abdel-Naby
- Department of Drug Radiation Research, National Centre for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority, 3 Ahmed El-Zomor Street, Nasr City, Cairo, Egypt.
| | - Noha M Deghiedy
- Department of Polymers Chemistry, NCRRT, Egyptian Atomic Energy Authority, 3 Ahmed El-Zomor Street, Nasr City, Cairo, Egypt
| | - Rasha R Rashed
- Department of Drug Radiation Research, NCRRT, Egyptian Atomic Energy Authority, 3 Ahmed El-Zomor Street, Nasr City, Cairo, Egypt
| | - Mona A El-Ghazaly
- Department of Drug Radiation Research, NCRRT, Egyptian Atomic Energy Authority, 3 Ahmed El-Zomor Street, Nasr City, Cairo, Egypt
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Pang X, Makinde EA, Eze FN, Olatunji OJ. Securidaca inappendiculata Polyphenol Rich Extract Counteracts Cognitive Deficits, Neuropathy, Neuroinflammation and Oxidative Stress in Diabetic Encephalopathic Rats via p38 MAPK/Nrf2/HO-1 Pathways. Front Pharmacol 2021; 12:737764. [PMID: 34733158 PMCID: PMC8558401 DOI: 10.3389/fphar.2021.737764] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 07/07/2021] [Accepted: 10/01/2021] [Indexed: 11/13/2022] Open
Abstract
Diabetic encephalopathy is one of the serious emerging complication of diabetes. Securidaca inappendiculata is an important medicinal plant with excellent antioxidant and anti-inflammatory properties. This study investigated the neuroprotective effects of S. inappendiculata polyphenol rich extract (SiPE) against diabetic encephalopathy in rats and elucidated the potential mechanisms of action. Type 2 diabetes mellitus (T2DM) was induced using high fructose solution/intraperitoneal injection of streptozotocin and the diabetic rats were treated with SiPE (50, 100 and 200 mg/kg) for 8 weeks. Learning and memory functions were assessed using the Morris water and Y maze tests, depressive behaviour was evaluated using forced swimming and open field tests, while neuropathic pain assessment was assessed using hot plate, tail immersion and formalin tests. After the experiments, acetylcholinesterase (AChE), oxidative stress biomarkers and proinflammatory cytokines, caspase-3 and nuclear factor kappa-light-chain-enhancer of activated B (NF-κB) were determined by ELISA kits. In addition, the expression levels of p38, phospho-p38 (p-p38), nuclear factor erythroid 2-related factor 2 (Nrf2) and heme oxygenase-1 (HO-1) were determined by western blot analyses. The results indicated that SiPE administration significantly lowered blood glucose level, attenuated body weight loss, thermal/chemical hyperalgesia, improved behavioural deficit in the Morris water maze, Y maze test and reduced depressive-like behaviours. Furthermore, SiPE reduced AChE, caspase-3, NF-κB, malonaldehyde malondialdehyde levels and simultaneously increased antioxidant enzymes activity in the brain tissues of diabetic rats. SiPE administration also significantly suppressed p38 MAPK pathway and upregulated the Nrf2 pathway. The findings suggested that SiPE exerted antidiabetic encephalopathy effects via modulation of oxidative stress and inflammation.
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Affiliation(s)
- Xiaojun Pang
- Department of Neurosurgery, Affiliated Hangzhou Chest Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Emmanuel Ayobami Makinde
- Faculty of Thai Traditional Medicine, Prince of Songkla University, Hat Yai, Thailand
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD, Australia
| | - Fredrick Nwude Eze
- Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Songkhla, Thailand
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Taheri Zadeh Z, Esmaeilpour K, Aminzadeh A, Heidari MR, Joushi S. Resveratrol Attenuates Learning, Memory, and Social Interaction Impairments in Rats Exposed to Arsenic. Biomed Res Int 2021; 2021:9993873. [PMID: 34621902 PMCID: PMC8492247 DOI: 10.1155/2021/9993873] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 07/27/2021] [Accepted: 08/18/2021] [Indexed: 12/23/2022]
Abstract
Arsenic (As) toxicity has deleterious effects on human health causing disorder in the brain. The aim of this study was to investigate the possible neuroprotective effect of resveratrol (RSV) on arsenic-induced neurotoxicity in rats. Neurotoxicity in rats was developed by treating As 10 mg/kg/day for 21 days orally. Animals were put into seven groups: control, vehicle, As, As+RSV10, As+RSV20 mg/kg, RSV10, and RSV20 mg/kg. Behavioral assessments such as the social interaction test, novel object recognition test, elevated plus maze, open field, the Morris water maze, in addition to assessment of biomarkers such as ferric reducing ability of plasma assay, glutathione assay, and malondialdehyde assay, were used to evaluate the effects of RSV on cognitive impairment and molecular changes induced by As. The results showed that cognitive performance impaired in As rats. RSV20 mg/kg significantly could ameliorate behavioral changes like spatial learning in days 3 and 4 (p < 0.05), recognition learning and memory (p < 0.01), disabilities in motor coordination and stress (p < 0.05), increased anxiety (p < 0.05), and social interaction deficit (sociability (p < 0.001) and social memory (p < 0.05)). RSV20 mg/kg also attenuated molecular modifications like decreased antioxidant power (p < 0.001), reduced glutathione content (p < 0.05), and increased malondialdehyde level (p < 0.05) induced by As. In addition to oxidative stress assessments, RSV10 mg/kg could significantly increase FRAP (p < 0.01) and GSH (p < 0.05); however, MDA was not significantly increased. Our current behavioral findings suggest that RSV has neuroprotective effects against AS toxicity.
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Affiliation(s)
- Zahra Taheri Zadeh
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
- Department of Pharmacology and Toxicology, School of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran
- Student Research Committee, Faculty of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran
| | - Khadijeh Esmaeilpour
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Azadeh Aminzadeh
- Department of Pharmacology and Toxicology, School of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran
| | - Mahmoud Reza Heidari
- Department of Pharmacology and Toxicology, School of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran
| | - Sara Joushi
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
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Ribeiro R, Santos AC, Calazans MO, De Oliveira ACP, Vieira LB. Is resveratrol a prospective therapeutic strategy in the co-association of glucose metabolism disorders and neurodegenerative diseases? Nutr Neurosci 2021; 25:2442-2457. [PMID: 34514962 DOI: 10.1080/1028415x.2021.1972514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Objectives: The mechanism behind the progression of Mild Cognitive Impairment (MCI) to Alzheimer's disease (AD) remains poorly understood. However some evidence pointed out that the co-occurrence of metabolic conditions affecting glucose homeostasis, as type 2 diabetes mellitus (T2DM), may be an important catalyst in this context. Notably, candidate drugs which modulate common pathways in the development of MCI-to-AD mediated by T2DM may offer likely therapy for AD. Nonetheless, limited pharmacological alternatives that modulate common pathways in T2DM, MCI, and AD are available. In the recent decades, studies have shown that resveratrol may act as a neuroprotective compound, but little is known about its potential in improving cognitive and metabolic aspects associated with AD progression mediated by the co-association between TDM2-MCI.Methods: In this review, we discuss possible protective mechanisms of resveratrol on shared pathways associated with AD progression mediated by T2DM-MCI co-occurrence.Results: Some studies indicated that insulin resistance and hyperglycemia may be also a T2DM risk factor for the progression of MCI-to-AD, promoting alterations in metabolic pathways associated with neuronal plasticity, and increasing pro-inflammatory environment. Interestingly, basic research and clinical trials indicate that resveratrol may modulate those pathways, showing a potential neuroprotective effect of this polyphenol.Conclusion: Therefore, there is not enough clinical data supporting the translational therapeutic use of resveratrol in this scenario.
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Affiliation(s)
- R Ribeiro
- Departamento de Farmacologia, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - A C Santos
- Departamento de Farmacologia, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - M O Calazans
- Departamento de Farmacologia, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - A C P De Oliveira
- Departamento de Farmacologia, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - L B Vieira
- Departamento de Farmacologia, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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Taslimi P, Işık M, Türkan F, Durgun M, Türkeş C, Gülçin İ, Beydemir Ş. Benzenesulfonamide derivatives as potent acetylcholinesterase, α-glycosidase, and glutathione S-transferase inhibitors: biological evaluation and molecular docking studies. J Biomol Struct Dyn 2021; 39:5449-5460. [PMID: 32691682 DOI: 10.1080/07391102.2020.1790422] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 06/24/2020] [Indexed: 12/19/2022]
Abstract
Sulfonamide derivatives exhibit a wide biological activity and can function as potential medical molecules in the development of a drug. Studies have reported that the compounds have an effect on many enzymes. In this study, the derivatives of amine sulfonamide (1i-11i) were prepared with reduced imine compounds (1-11) with NaBH4 in methanol. The synthesized compounds were fully characterized by spectral data and analytical. The effect of the synthesized derivatives on acetylcholinesterase (AChE), glutathione S-transferase (GST) and α-glycosidase (α-GLY) enzymes were determined. For the AChE and α-GLY, the most powerful inhibition was observed on 10 and 10i series with KI value in the range 2.26 ± 0.45-3.57 ± 0.97 and 95.73 ± 13.67-102.45 ± 11.72 µM, respectively. KI values of the series for GST were found in the range of 22.76 ± 1.23-49.29 ± 4.49. Finally, the compounds have a stronger inhibitor in lower concentrations by the attachment of functional electronegative groups such as two halogens (-Br and -CI), -OH to the benzene ring and -SO2NH2. The crystal structures of AChE, α-GLY, and GST in complex with selected derivatives 4 and 10 show the importance of the functional moieties in the binding modes within the receptors.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Parham Taslimi
- Department of Biotechnology, Faculty of Science, Bartın University, Bartın, Turkey
| | - Mesut Işık
- Department of Pharmacy Services, Vocational School of Health Services, Harran University, Şanlıurfa, Turkey
| | - Fikret Türkan
- Department of Medical Services and Techniques, Vocational School of Health Services, Iğdır University, Iğdır, Turkey
| | - Mustafa Durgun
- Department of Chemistry, Faculty of Arts and Sciences, Harran University, Şanlıurfa, Turkey
| | - Cüneyt Türkeş
- Department of Biochemistry, Faculty of Pharmacy, Erzincan Binali Yıldırım University, Erzincan, Turkey
| | - İlhami Gülçin
- Department of Chemistry, Faculty of Sciences, Atatürk University, Erzurum, Turkey
| | - Şükrü Beydemir
- Department of Biochemistry, Faculty of Pharmacy, Anadolu University, Eskişehir, Turkey
- The Rectorate of Bilecik Şeyh Edebali University, Bilecik, Turkey
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16
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Loganathan C, Sakayanathan P, Thayumanavan P. Astaxanthin-s-allyl cysteine diester against high glucose-induced neuronal toxicity in vitro and diabetes-associated cognitive decline in vivo: Effect on p53, oxidative stress and mitochondrial function. Neurotoxicology 2021; 86:114-24. [PMID: 34339762 DOI: 10.1016/j.neuro.2021.07.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/24/2021] [Accepted: 07/28/2021] [Indexed: 02/08/2023]
Abstract
Neuroprotective effect of astaxanthin-s-allyl cysteine diester (AST-SAC) against high glucose (HG)-induced oxidative stress in in vitro and cognitive decline under diabetes conditions in in vivo has been explored. Pretreatment of AST-SAC (5, 10 and 15 μM) dose-dependently preserved the neuronal cells (SH-SY5Y) viability against HG toxicity through i) decreasing oxidative stress (decreasing reactive oxygen species generation and increasing endogenous antioxidants level); ii) protecting mitochondrial function [oxidative phosphorylation (OXPHOS) complexes activity and mitochondrial membrane potential (MMP)]; and iii) decreasing p53 level thereby subsequently decreasing the level of apoptotic marker proteins. Male Spraque-Dawley rats were orally administered AST-SAC (1 mg/kg/day) for 45 days in streptozotocin-induced diabetes mellitus (DM) rats. AST-SAC administration prevented the loss of spatial memory in DM rats as determined using the novel object location test. AST-SAC administration alleviated the DM-induced injury in brain such as increased cholinesterases activity, elevated oxidative stress and mitochondrial dysfunction. Altogether, the results from the present study demonstrated that AST-SAC averted the neuronal apoptosis and preserved the cognitive function against HG toxicity under DM conditions.
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17
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Ma X, Song M, Yan Y, Ren G, Hou J, Qin G, Wang W, Li Z. Albiflorin alleviates cognitive dysfunction in STZ-induced rats. Aging (Albany NY) 2021; 13:18287-18297. [PMID: 34319254 PMCID: PMC8351685 DOI: 10.18632/aging.203274] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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: 03/09/2020] [Accepted: 06/14/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND To explore the effect of albiflorin (AL) on streptozotocin (STZ)-induced Alzheimer's disease (AD) in rats. METHODS A mouse model of diabetic encephalopathy was established by intraperitoneal injection of 1%STZ. Step down test and water maze test were used to test the cognitive function of rats. Congo Red Staining was used to detect the distribution of Aβ plaques in the hippocampus of rats. Cytokine levels in serum and hippocampus were measured using ELISA. Serum insulin, oral glucose tolerance (OGTT), serum superoxide dismutase (SOD) activity and malondialdehyde (MDA) content were measured by commercial kits. And the content of Nrf-2/HO-1/HMGB1/NF-kB in the hippocampus of diabetic rats were detected by western blot. RESULTS AND CONCLUSION Compared with the STZ model group, the average escape latency of rats in the AL group in the Morris water maze test was significantly shortened, and the average number of platform crossings and the ratio of distance/total swimming distance in the target quadrant were increased significantly. Staining of tissue sections and ELISA showed a decrease in Aβ plaque density in the hippocampus of rats in the AL group. And serum insulin levels of rats in the ALgroup were significantly reduced and OGTT was improved. In addition, AL could also regulate the Nrf-2/HO-1/HMGB1/NF-kB signal pathway in the hippocampus. Therefore, AL may ameliorate STZ-induced cognitive impairment in rats by regulating oxidative stress and inflammation in the brain.
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Affiliation(s)
- Xiaojun Ma
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Min Song
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Yushan Yan
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Gaofei Ren
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Jingwen Hou
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Guijun Qin
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Wang Wang
- Department of Physiology and Neurobiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Zhizhen Li
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
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Proença ICT, Gonçalves LK, Schmitz F, Mello A, Funchal CS, Wyse A, Dani C. Purple grape juice consumption during the gestation reduces acetylcholinesterase activity and oxidative stress levels provoked by high-fat diet in hippocampus from adult female rats descendants. AN ACAD BRAS CIENC 2021; 93:e20191002. [PMID: 34190844 DOI: 10.1590/0001-3765202120191002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 01/27/2020] [Indexed: 01/03/2023] Open
Abstract
The enzyme acetylcholinesterase participates in the end of cholinergic transmission and it has been shown that its activity is increased in some diseases that affect the brain, including Alzheimer disease. The objective of this study was to investigate the effect of purple grape juice consumption with or without high-fat diet in the gestational and lactation period on acetylcholinesterase activity and oxidative stress parameters in the hippocampus of female descendants. During pregnancy and lactation, 40 female Wistar rats received a control diet or a high-fat diet, with half of them receiving grape juice. After lactation, the female descendants received water and control diet in ad libitum until euthanasia on the 120 postnatal day. Hippocampus from were removed for analysis of AChE activity, protein oxidation and lipid peroxidation. It was observed that high-fat diet consumption during the pregnancy increased the AChE activity and the grape juice reduced this activity in descendants. The same was observed in protein oxidation, the descendants from high-fat diet had significantly highest values, and grape juice decreased the levels. We conclude that dietary choices during pregnancy can alter the acetylcholinesterase levels and grape juice is an important alternative to improve this function in adulthood.
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Affiliation(s)
- Isabel C T Proença
- Programa de Pós-Graduação em Biociências e Reabilitação- Centro Universitário Metodista - IPA, Cel. Joaquim Pedro Salgado, 80, Rio Branco, 90420-060 Porto Alegre, RS, Brazil
| | - Luciana K Gonçalves
- Programa de Pós-Graduação em Biociências e Reabilitação- Centro Universitário Metodista - IPA, Cel. Joaquim Pedro Salgado, 80, Rio Branco, 90420-060 Porto Alegre, RS, Brazil
| | - Felipe Schmitz
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Santa Cecília, 90035-003 Porto Alegre, RS, Brazil
| | - Alexandre Mello
- Programa de Pós-Graduação em Biociências e Reabilitação- Centro Universitário Metodista - IPA, Cel. Joaquim Pedro Salgado, 80, Rio Branco, 90420-060 Porto Alegre, RS, Brazil
| | - Claudia S Funchal
- Programa de Pós-Graduação em Biociências e Reabilitação- Centro Universitário Metodista - IPA, Cel. Joaquim Pedro Salgado, 80, Rio Branco, 90420-060 Porto Alegre, RS, Brazil
| | - Angela Wyse
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Santa Cecília, 90035-003 Porto Alegre, RS, Brazil
| | - Caroline Dani
- Programa de Pós-Graduação em Biociências e Reabilitação- Centro Universitário Metodista - IPA, Cel. Joaquim Pedro Salgado, 80, Rio Branco, 90420-060 Porto Alegre, RS, Brazil.,Programa de Pós-Graduação em Ciências Biológicas: Farmacologia e Terapêutica, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500, Centro Histórico, 90050-170 Porto Alegre, RS, Brazil
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Abstract
Alzheimer’s disease (AD) is the number one neurovegetative disease, but its treatment options are relatively few and ineffective. In efforts to discover new strategies for AD therapy, natural products have aroused interest in the research community and in the pharmaceutical industry for their neuroprotective activity, targeting different pathological mechanisms associated with AD. A wide variety of natural products from different origins have been evaluated preclinically and clinically for their neuroprotective mechanisms in preventing and attenuating the multifactorial pathologies of AD. This review mainly focuses on the possible neuroprotective mechanisms from natural products that may be beneficial in AD treatment and the natural product mixtures or extracts from different sources that have demonstrated neuroprotective activity in preclinical and/or clinical studies. It is believed that natural product mixtures or extracts containing multiple bioactive compounds that can work additively or synergistically to exhibit multiple neuroprotective mechanisms might be an effective approach in AD drug discovery.
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Affiliation(s)
- Xin Chen
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, Campbell University, Buies Creek, NC 27506, USA; (J.D.); (W.B.)
- Correspondence: ; Tel.: +1-910-893-1706
| | - Joshua Drew
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, Campbell University, Buies Creek, NC 27506, USA; (J.D.); (W.B.)
| | - Wren Berney
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, Campbell University, Buies Creek, NC 27506, USA; (J.D.); (W.B.)
| | - Wei Lei
- Department of Pharmaceutical and Administrative Sciences, School of Pharmacy, Presbyterian College, Clinton, SC 29325, USA;
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20
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Castro MFV, Stefanello N, Assmann CE, Baldissarelli J, Bagatini MD, da Silva AD, da Costa P, Borba L, da Cruz IBM, Morsch VM, Schetinger MRC. Modulatory effects of caffeic acid on purinergic and cholinergic systems and oxi-inflammatory parameters of streptozotocin-induced diabetic rats. Life Sci 2021; 277:119421. [PMID: 33785337 DOI: 10.1016/j.lfs.2021.119421] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 03/15/2021] [Accepted: 03/23/2021] [Indexed: 12/20/2022]
Abstract
Diabetes mellitus (DM) is a metabolic disorder characterized by a chronic hyperglycemia state, increased oxidative stress parameters, and inflammatory processes. AIMS To evaluate the effect of caffeic acid (CA) on ecto-nucleoside triphosphate diphosphohydrolase (E-NTPDase) and adenosine deaminase (ADA) enzymatic activity and expression of the A2A receptor of the purinergic system, acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE) enzymatic activity and expression of the α7nAChR receptor of the cholinergic system as well as inflammatory and oxidative parameters in diabetic rats. METHODS Diabetes was induced by a single dose intraperitoneally of streptozotocin (STZ, 55 mg/kg). Animals were divided into six groups (n = 10): control/oil; control/CA 10 mg/kg; control/CA 50 mg/kg; diabetic/oil; diabetic/CA 10 mg/kg; and diabetic/CA 50 mg/kg treated for thirty days by gavage. RESULTS CA treatment reduced ATP and ADP hydrolysis (lymphocytes) and ATP levels (serum), and reversed the increase in ADA and AChE (lymphocytes), BuChE (serum), and myeloperoxidase (MPO, plasma) activities in diabetic rats. CA treatment did not attenuate the increase in IL-1β and IL-6 gene expression (lymphocytes) in the diabetic state; however, it increased IL-10 and A2A gene expression, regardless of the animals' condition (healthy or diabetic), and α7nAChR gene expression. Additionally, CA attenuated the increase in oxidative stress markers and reversed the decrease in antioxidant parameters of diabetic animals. CONCLUSION Overall, our findings indicated that CA treatment positively modulated purinergic and cholinergic enzyme activities and receptor expression, and improved oxi-inflammatory parameters, thus suggesting that this phenolic acid could improve redox homeostasis dysregulation and purinergic and cholinergic signaling in the diabetic state.
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Affiliation(s)
- Milagros Fanny Vera Castro
- Post-Graduate Program in Biological Sciences: Toxicological Biochemistry, Center for Natural and Exact Sciences, Federal University of Santa Maria, University Campus, Camobi District, 97105-900 Santa Maria, RS, Brazil.
| | - Naiara Stefanello
- Post-Graduate Program in Biological Sciences: Toxicological Biochemistry, Center for Natural and Exact Sciences, Federal University of Santa Maria, University Campus, Camobi District, 97105-900 Santa Maria, RS, Brazil
| | - Charles Elias Assmann
- Post-Graduate Program in Biological Sciences: Toxicological Biochemistry, Center for Natural and Exact Sciences, Federal University of Santa Maria, University Campus, Camobi District, 97105-900 Santa Maria, RS, Brazil
| | - Jucimara Baldissarelli
- Post-Graduate Program in Biological Sciences: Toxicological Biochemistry, Center for Natural and Exact Sciences, Federal University of Santa Maria, University Campus, Camobi District, 97105-900 Santa Maria, RS, Brazil
| | - Margarete Dulce Bagatini
- Post-Graduate Program in Biological Sciences: Toxicological Biochemistry, Center for Natural and Exact Sciences, Federal University of Santa Maria, University Campus, Camobi District, 97105-900 Santa Maria, RS, Brazil
| | - Aniélen Dutra da Silva
- Post-Graduate Program in Biological Sciences: Toxicological Biochemistry, Center for Natural and Exact Sciences, Federal University of Santa Maria, University Campus, Camobi District, 97105-900 Santa Maria, RS, Brazil
| | - Pauline da Costa
- Post-Graduate Program in Biological Sciences: Toxicological Biochemistry, Center for Natural and Exact Sciences, Federal University of Santa Maria, University Campus, Camobi District, 97105-900 Santa Maria, RS, Brazil
| | - Loren Borba
- Post-Graduate Program in Biological Sciences: Toxicological Biochemistry, Center for Natural and Exact Sciences, Federal University of Santa Maria, University Campus, Camobi District, 97105-900 Santa Maria, RS, Brazil
| | - Ivana Beatrice Mânica da Cruz
- Post-Graduate Program in Pharmacology, Center of Health Sciences, Federal University of Santa Maria, University Campus, Camobi District, 97105-900 Santa Maria, RS, Brazil
| | - Vera Maria Morsch
- Post-Graduate Program in Biological Sciences: Toxicological Biochemistry, Center for Natural and Exact Sciences, Federal University of Santa Maria, University Campus, Camobi District, 97105-900 Santa Maria, RS, Brazil
| | - Maria Rosa Chitolina Schetinger
- Post-Graduate Program in Biological Sciences: Toxicological Biochemistry, Center for Natural and Exact Sciences, Federal University of Santa Maria, University Campus, Camobi District, 97105-900 Santa Maria, RS, Brazil.
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21
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Akocak S, Taslimi P, Lolak N, Işık M, Durgun M, Budak Y, Türkeş C, Gülçin İ, Beydemir Ş. Synthesis, Characterization, and Inhibition Study of Novel Substituted Phenylureido Sulfaguanidine Derivatives as α‐Glycosidase and Cholinesterase Inhibitors. Chem Biodivers 2021; 18:e2000958. [DOI: 10.1002/cbdv.202000958] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 02/22/2021] [Indexed: 12/19/2022]
Affiliation(s)
- Suleyman Akocak
- Department of Pharmaceutical Chemistry Faculty of Pharmacy Adıyaman University Adıyaman 02040 Turkey
| | - Parham Taslimi
- Department of Biotechnology Faculty of Science Bartın University Bartın 74100 Turkey
| | - Nebih Lolak
- Department of Pharmaceutical Chemistry Faculty of Pharmacy Adıyaman University Adıyaman 02040 Turkey
| | - Mesut Işık
- Department of Bioengineering Faculty of Engineering Bilecik Şeyh Edebali University Bilecik 11230 Turkey
| | - Mustafa Durgun
- Department of Chemistry Faculty of Arts and Sciences Harran University Şanlıurfa 63290 Turkey
| | - Yakup Budak
- Department of Chemistry Faculty of Arts and Sciences Gaziosmanpaşa University Tokat 60250 Turkey
| | - Cüneyt Türkeş
- Department of Biochemistry Faculty of Pharmacy Erzincan Binali Yıldırım University Erzincan 24100 Turkey
| | - İlhami Gülçin
- Department of Chemistry Faculty of Sciences Atatürk University Erzurum 25240 Turkey
| | - Şükrü Beydemir
- Department of Biochemistry Faculty of Pharmacy Anadolu University Eskişehir 26470 Turkey
- The Rectorate of Bilecik Şeyh Edebali University Bilecik 11230 Turkey
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22
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Rahman MH, Akter R, Bhattacharya T, Abdel-Daim MM, Alkahtani S, Arafah MW, Al-Johani NS, Alhoshani NM, Alkeraishan N, Alhenaky A, Abd-Elkader OH, El-Seedi HR, Kaushik D, Mittal V. Resveratrol and Neuroprotection: Impact and Its Therapeutic Potential in Alzheimer's Disease. Front Pharmacol 2020; 11:619024. [PMID: 33456444 PMCID: PMC7804889 DOI: 10.3389/fphar.2020.619024] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [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: 10/19/2020] [Accepted: 12/07/2020] [Indexed: 12/22/2022] Open
Abstract
Alzheimer’s disease (AD) is a progressive cortex and hippocampal neurodegenerative disease which ultimately causes cognitively impaired decline in patients. The AD pathogen is a very complex process, including aggregation of Aβ (β-amyloid peptides), phosphorylation of tau-proteins, and chronic inflammation. Exactly, resveratrol, a polyphenol present in red wine, and many plants are indicated to show the neuroprotective effect on mechanisms mostly above. Resveratrol plays an important role in promotion of non-amyloidogenic cleavage of the amyloid precursor protein. It also enhances the clearance of amyloid beta-peptides and reduces the damage of neurons. Most experimental research on AD and resveratrol has been performed in many species, both in vitro and in vivo, during the last few years. Nevertheless, resveratrol’s effects are restricted by its bioavailability in the reservoir. Therefore, scientists have tried to improve its efficiency by using different methods. This review focuses on recent work done on the cell and animal cultures and also focuses on the neuroprotective molecular mechanisms of resveratrol. It also discusses about the therapeutic potential onto the treatment of AD.
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Affiliation(s)
- Md Habibur Rahman
- Department of Pharmacy, Southeast University, Banani, Dhaka, Bangladesh
| | - Rokeya Akter
- Department of Pharmacy, Jagannath University, Sadarghat, Dhaka, Bangladesh
| | - Tanima Bhattacharya
- School of Chemistry and Chemical Engineering, Hubei University, Wuhan, China
| | - Mohamed M Abdel-Daim
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia.,Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
| | - Saad Alkahtani
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed W Arafah
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Norah S Al-Johani
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Norah M Alhoshani
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Nora Alkeraishan
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Alhanof Alhenaky
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Omar H Abd-Elkader
- Physics & Astronomy Department, Science College, King Saud University, Riyadh, Saudi Arabia
| | - Hesham R El-Seedi
- International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang, China.,Pharmacognosy Group, Department of Pharmaceutical Biosciences, Uppsala University, Uppsala, Sweden
| | - Deepak Kaushik
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, India
| | - Vineet Mittal
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, India
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23
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Oyeniran OH, Ademiluyi AO, Oboh G. Phenolic constituents and inhibitory effects of the leaf of Rauvolfia vomitoria Afzel on free radicals, cholinergic and monoaminergic enzymes in rat's brain in vitro. J Basic Clin Physiol Pharmacol 2020; 32:987-994. [PMID: 34592080 DOI: 10.1515/jbcpp-2020-0144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 09/10/2020] [Indexed: 06/13/2023]
Abstract
OBJECTIVES Rauvolfia vomitoria is a medicinal plant used traditionally in Africa in the management of several human diseases including psychosis. However, there is inadequate scientific information on the potency of the phenolic constituents of R. vomitoria leaf in the management of neurodegeneration. Therefore, this study characterized the phenolic constituents and investigated the effects of aqueous and methanolic extracts of R. vomitoria leaf on free radicals, Fe2+-induced lipid peroxidation, and critical enzymes linked to neurodegeneration in rat's brain in vitro. METHODS The polyphenols were evaluated by characterizing phenolic constituents using high-performance liquid chromatography coupled with diode array detector (HPLC-DAD). The antioxidant properties were assessed through the extracts ability to reduce Fe3+ to Fe2+; inhibit ABTS, DPPH, and OH radicals and Fe2+-induced lipid peroxidation. The effects of the extracts on AChE and MAO were also evaluated. RESULTS The phenolic characterization of R. vomitoria leaf revealed that there were more flavonoids present. Both aqueous and methanolic extracts of R. vomitoria leaf had inhibitory effects with the methanolic extract having higher significant (p≤0.05) free radicals scavenging ability coupled with inhibition of monoamine oxidases. However, there was no significant (p≤0.05) difference obtained in the inhibition of lipid peroxidation and cholinesterases. CONCLUSION This study suggests that the rich phenolic constituents of R. vomitoria leaf might contribute to the observed antioxidative and neuroprotective effects. The methanolic extract was more potent than the aqueous extract; therefore, extraction of R. vomitoria leaf with methanol could offer better health-promoting effects in neurodegenerative condition.
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Affiliation(s)
- Olubukola H Oyeniran
- Department of Biochemistry, Federal University Oye - Ekiti P.M.B. 373, Ekiti State, Nigeria
- Department of Biochemistry, Functional Foods, Nutraceuticals and Phytomedicine Unit, Federal University of Technology, Akure, Nigeria
| | - Adedayo O Ademiluyi
- Department of Biochemistry, Functional Foods, Nutraceuticals and Phytomedicine Unit, Federal University of Technology, Akure, Nigeria
| | - Ganiyu Oboh
- Department of Biochemistry, Functional Foods, Nutraceuticals and Phytomedicine Unit, Federal University of Technology, Akure, Nigeria
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24
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Molez AM, Nascimento EHL, Haiter Neto F, Cirano FR, Pimentel SP, Ribeiro FV, Casati MZ, Corrêa MG. Effect of resveratrol on the progression of experimental periodontitis in an ovariectomized rat model of osteoporosis: Morphometric, immune‐enzymatic, and gene expression analysis. J Periodontal Res 2020; 55:840-849. [DOI: 10.1111/jre.12775] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 05/13/2020] [Accepted: 05/21/2020] [Indexed: 12/23/2022]
Affiliation(s)
| | - Eduarda Helena Leandro Nascimento
- Department of Oral Diagnosis Division of Oral Radiology Piracicaba Dental School University of Campinas Piracicaba, São Paulo Brazil
| | - Francisco Haiter Neto
- Department of Oral Diagnosis Division of Oral Radiology Piracicaba Dental School University of Campinas Piracicaba, São Paulo Brazil
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25
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Ajatta MA, Oladipupo OR, Josiah SS, Osundahunsi OF, Omoba OS. Cognitive impairment by non-insulin-dependent diabetes mellitus was attenuated by dietary supplements of marble vine (Dioclea reflexa) and plantain (Musa paradisiaca) dough meals in albino rats. J Food Biochem 2020; 45:e13473. [PMID: 32964438 DOI: 10.1111/jfbc.13473] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 08/10/2020] [Accepted: 08/21/2020] [Indexed: 11/27/2022]
Abstract
This study investigates the protective effect of formulated marble vine/plantain dough meals on cognitive impairment in diabetic rats. Wistar rats were divided into eight groups (n = 6) and fed with HFD for 14 days and a single dose of streptozotocin intraperitoneally on the 14th day (except control rats). Diabetic rats were treated with formulated diets and metformin. The ameliorative effect of the formulated doughs on cerebral damage in diabetic rats with respect to weight gain/loss, glucose and insulin levels, oxidative damage, neurological dysfunction, and histological alterations were assessed. The formulated diet had high protein and fiber content values ranged from 13.00 to 25.04 g/100 g and from 5.23 to 6.20 g/100 g, respectively compared to the control. Blood glucose level was observed, thereby mitigating the cerebral oxidative damage. The diet significantly ameliorated the neurological dysfunction as adjudged by increased dopamine concentration and lowered acetylcholinesterase activity; results were also supported by the outcomes from brain histopathological study. PRACTICAL APPLICATIONS: Underutilized leguminous seeds such as marble vine seeds are known for their nutraceutical potentials due to their numerous biochemical components. The study provides preliminary information on the potential of marble vine/plantain functional dough meals in the management of neurological complications resulting from type 2 diabetes mellitus in albino rats. Generally, the formulated doughs possess neuroprotective potentials in preventing neurological complications arising from diabetes. However, the effect of marble vine-plantain dough meal in managing the brain damage should be further investigated through the clinical trials before development for pharmaceutical applications.
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Affiliation(s)
- Mary A Ajatta
- Department of Food Science and Technology, Federal University of Technology, Akure, Nigeria
| | - Olumayowa R Oladipupo
- Department of Food Science and Technology, Federal University of Technology, Akure, Nigeria
| | - Sunday S Josiah
- Phytomedicine, Biochemical Pharmacology and Toxicology Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria
| | | | - Olufunmilayo S Omoba
- Department of Food Science and Technology, Federal University of Technology, Akure, Nigeria
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26
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Nourbakhsh F, Read MI, Barreto GE, Sahebkar A. Boosting the autophagy-lysosomal pathway by phytochemicals: A potential therapeutic strategy against Alzheimer's disease. IUBMB Life 2020; 72:2360-2281. [PMID: 32894821 DOI: 10.1002/iub.2369] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 06/12/2020] [Revised: 07/20/2020] [Accepted: 07/31/2020] [Indexed: 01/14/2023]
Abstract
The lysosome is a membrane-enclosed organelle in eukaryotic cells, which has basic pattern recognition for nutrient-dependent signal transduction. In Alzheimer's disease, the already declining autophagy-lysosomal function is exacerbated by an increased need for clearance of damaged proteins and organelles in aged cells. Recent evidence suggests that numerous diseases are linked to impaired autophagy upstream of lysosomes. In this way, a comprehensive survey on the pathophysiology of the disease seems necessary. Hence, in the first section of this review, we will discuss the ultimate findings in lysosomal signaling functions and how they affect cellular metabolism and trafficking under neurodegenerative conditions, specifically Alzheimer's disease. In the second section, we focus on how natural products and their derivatives are involved in the regulation of inflammation and lysosomal dysfunction pathways, including how these should be considered a crucial target for Alzheimer's disease therapeutics.
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Affiliation(s)
- Fahimeh Nourbakhsh
- Medical Toxicology Research Centre, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Morgayn I Read
- Department of Pharmacology, University of Otago School of Medical Sciences, Dunedin, New Zealand
| | - George E Barreto
- Department of Biological Sciences, University of Limerick, Limerick, Ireland.,Health Research Institute, University of Limerick, Limerick, Ireland
| | - Amirhossein Sahebkar
- Halal Research Center of IRI, FDA, Tehran, Iran.,Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Polish Mother's Memorial Hospital Research Institute (PMMHRI), Lodz, Poland
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27
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Uriho A, Tang X, Le G, Yang S, Harimana Y, Ishimwe SP, Yiping L, Zhang K, Ma S, Muhoza B. Effects of resveratrol on mitochondrial biogenesis and physiological diseases. ADV TRADIT MED (ADTM) 2021; 21:1-14. [DOI: 10.1007/s13596-020-00492-0] [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: 10/23/2022]
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28
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Beheshti F, Hashemzehi M, Hosseini M, Marefati N, Memarpour S. Inducible nitric oxide synthase plays a role in depression- and anxiety-like behaviors chronically induced by lipopolysaccharide in rats: Evidence from inflammation and oxidative stress. Behav Brain Res 2020; 392:112720. [DOI: 10.1016/j.bbr.2020.112720] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 05/16/2020] [Accepted: 05/19/2020] [Indexed: 11/23/2022]
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29
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Oyeniran OH, Ademiluyi AO, Oboh G. Comparative study of the phenolic profile, antioxidant properties, and inhibitory effects of Moringa (Moringa oleifera Lam.) and Almond (Terminalia catappa Linn.) leaves on acetylcholinesterase and monoamine oxidase activities in the head region of Fruitfly (Drosophila melanogaster Meigen) in vitro. J Food Biochem 2020; 45:e13401. [PMID: 32691858 DOI: 10.1111/jfbc.13401] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 06/21/2020] [Accepted: 07/03/2020] [Indexed: 12/20/2022]
Abstract
Moringa and Almond are medicinal plants used traditionally as food and medicine to prevent and/or treat a wide array of metabolic and neurodegenerative diseases, however, Almond leaf is underutilized. Therefore, this study investigated and compared the polyphenol constituents, antioxidant capacities, and neurochemical indices of the aqueous extracts of Moringa and Almond leaves in fruitfly head tissue homogenate in vitro. The polyphenols were evaluated by characterization using HPLC-DAD, antioxidant properties were assessed through extracts ability to inhibit ABTS, DPPH, OH, and NO radicals, reduce Fe3+ and MDA, and chelate Fe2+ . The neurochemical indices were evaluated through AChE and MAO inhibitory activities. Almond leaf had significant (p < .05) higher polyphenols and antioxidant properties. However, Moringa leaf had significant (p < .05) higher AChE inhibition and no significant (p < .05) difference was obtained in MAO inhibitory activities. Thus, Almond leaf might be more effective in managing diseases related with oxidative stress and neurodegeneration. PRACTICAL APPLICATIONS: This present study has shown that Almond leaf might offer better health promotion due to its higher phenolic constituents and antioxidant activities when compared with Moringa leaf, however, both Moringa and Almond leaves could be taken as functional foods to alleviate the symptoms of oxidative stress and neurodegenerative diseases.
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Affiliation(s)
- Olubukola H Oyeniran
- Functional Foods, Nutraceuticals and Phytomedicine Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria.,Department of Biochemistry, Federal University Oye, Oye-Ekiti, Nigeria
| | - Adedayo O Ademiluyi
- Functional Foods, Nutraceuticals and Phytomedicine Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria
| | - Ganiyu Oboh
- Functional Foods, Nutraceuticals and Phytomedicine Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria
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30
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Agunloye OM, Oboh G. Effect of diet supplemented with P. ostreatus and L. subnudus on memory index and key enzymes linked with Alzheimer's disease in streptozotocin-induced diabetes rats. J Food Biochem 2020; 45:e13355. [PMID: 32628296 DOI: 10.1111/jfbc.13355] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 05/11/2020] [Accepted: 06/06/2020] [Indexed: 12/22/2022]
Abstract
Mushrooms have been reported in folklore for the management of Alzheimer's disease (AD) and diabetes with limited scientific prove. This study aims to unravel the effect of diets supplemented with P. ostreatus and L. subnudus on diabetic encephalopathy (DE) in streptozotocin (STZ)-induced diabetic rats. The memory index, brain cholinesterase, arginase activity, and markers for oxidative stress were evaluated. STZ-induced diabetic rats exhibited memory deficits, elevated brain cholinesterase, arginase activity in comparison with nondiabetic rats. Also, markers for oxidative stress were altered in the brain of diabetic rat when compare with nondiabetic rats. Meanwhile, diabetic rats fed with supplemented-diets exhibited better memory index, reduced cholinesterase, arginase activity in comparison with untreated diabetic rats placed on a basal diet. Also, supplemented-diets restored altered markers of oxidative stress. Our findings indicated that P. ostreatus and L. subnudus-supplemented diets could prevent DE. Nevertheless, diets supplemented with L. subnudus had better nutraceutical potential than P. ostreatus. PRACTICAL APPLICATIONS: Diabetes mellitus is one of the most chronic diseases in the world. Also, it is a risk factor for several complications such as cognitive dysfunction, hypertension, and other health issues. Mushrooms are commonly consumed as food or as food supplements in many countries of the world and are a rich source of protein, chitin, and vitamins. Diet supplemented with P. ostreatus and L. subnudus were able to restore memory deficit in diabetic rats, proven to be a dietary intervention in the management of memory deficit linked with diabetes mellitus. Findings from this study show that consumption of P. ostreatus and L. subnudus as food or supplement could help in a diabetic state.
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Affiliation(s)
- Odunayo M Agunloye
- Functional Foods, Nutraceuticals and Phytomedicine Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria
| | - Ganiyu Oboh
- Functional Foods, Nutraceuticals and Phytomedicine Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria
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31
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Njan AA, Adenuga FO, Ajayi AM, Sotunde O, Ologe MO, Olaoye SO, Erdogan ON, Iwalewa OE. Neuroprotective and memory-enhancing effects of methanolic leaf extract of Peristrophe bicalyculata in rat model of type 2 diabetes mellitus. Heliyon 2020; 6:e04011. [PMID: 32490237 PMCID: PMC7256363 DOI: 10.1016/j.heliyon.2020.e04011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 11/18/2019] [Revised: 02/04/2020] [Accepted: 05/14/2020] [Indexed: 12/03/2022] Open
Abstract
This study investigated the effect of methanolic leaf extract of Peristrophe Bicalyculata (MEPb) on type 2 diabetes mellitus (T2DM) associated cognitive decline in Wistar rats. 36 male rats weighing 130–200 g were assigned into 6 groups (n = 6) as follows: normal control, diabetic control, pioglitazone-treated diabetic and three MEPb-treated diabetic groups, type 2 diabetes mellitus was induced with low dose streptozocin (STZ) injection following 3 weeks of high fat diet (HFD) intake. Thirty days after diabetes induction, rats exhibited marked and persistent hyperglycemia, animals were treated with MEPb (50, 100 and 200 mg/kg) and pioglitazone (10 mg/kg) as standard. Morris water maze (MWM) test and Novel object recognition test (NORT) were used to assess learning and memory. Blood glucose level, oxidative stress makers, pro-inflammatory marker and acetylcholinestarase activities were analysed. Both MEPb and pioglitazone significantly (P < 0.05) reduced escape latency in treated animals compared to the diabetic control group in the MWM test. Methanolic leaf extract of Peristrophe bicalyculata and pioglitazone also significantly (P < 0.05) increased discrimination index in treated animals compared to the diabetic control group in the novel object recognition test. Serum, brain and liver MDA levels were significantly (P < 0.05) decreased in MEPb and pioglitazone treated rats compared to diabetic control. Serum and liver GSH as well as CAT levels were significantly (P < 0.05) increased while brain GSH and CAT levels shows apparent increase in MEPb and pioglitazone treated rats compared with diabetic control. Treatment with MEPb caused a significant (P < 0.05) decrease in brain nitrite level, interleukin 6 and acetylcholinesterase activity compared to diabetic control group. We conclude that Methanolic leaf extract of Peristrophe bicalyculata enhanced antioxidant capacity and prevented neuroinflammation, consequently improving brain neuronal cholinergic function in experimental animals.
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Affiliation(s)
- Anoka A Njan
- Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences, University of Ilorin, Ilorin, Nigeria
| | - Francisca O Adenuga
- Neuropharmacology and Ethnopharmacology Unit, Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Abayomi M Ajayi
- Neuropharmacology and Ethnopharmacology Unit, Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Olasubomi Sotunde
- Neuropharmacology and Ethnopharmacology Unit, Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Mary O Ologe
- Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences, University of Ilorin, Ilorin, Nigeria
| | | | - Ozlem Nazan Erdogan
- Department of Pharmacy Management, School of Pharmacy, Istanbul University, Beyazit, Istanbul 34116, Turkey
| | - Olugbenga E Iwalewa
- Neuropharmacology and Ethnopharmacology Unit, Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
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32
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Maher AM, Saleh SR, Elguindy NM, Hashem HM, Yacout GA. Exogenous melatonin restrains neuroinflammation in high fat diet induced diabetic rats through attenuating indoleamine 2,3-dioxygenase 1 expression. Life Sci 2020; 247:117427. [DOI: 10.1016/j.lfs.2020.117427] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 01/24/2020] [Accepted: 02/09/2020] [Indexed: 12/15/2022]
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33
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Formagio ASN, Volobuff CRF, Kassuya CAL, Cardoso CAL, do Carmo Vieira M, Pereira ZV, Bagatin MC, de Freitas Gauze G. Psychotria leiocarpa Extract and Vincosamide Reduce Chemically-Induced Inflammation in Mice and Inhibit the Acetylcholinesterase Activity. Inflammation 2019; 42:1561-74. [PMID: 31102122 DOI: 10.1007/s10753-019-01018-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Species from Psychotria are used in folk medicine against inflammatory diseases, respiratory disturbances, and anti-hallucinogenic. In the present study, the compound vincosamide (PL-1) was identified for the first time in methanolic extract of the Psychotria leiocarpa (ME-PL) leaves, as well as the anti-inflammatory and anticholinesteric effects in rodents and molecular docking simulations. The fractionation of the chloroform fraction (CF-PL) through chromatographic methods afforded the known compound PL-1. The anti-inflammatory activity of the ME-PL (30, 100, and 300 mg/kg) and PL-1 (3, 30, and 100 mg/kg) was analyzed using experimental models: paw edema, pleurisy, and mechanical and thermal hyperalgesia induced by carrageenan. The anticholinesterase activity of the ME-PL (30 and 100 mg/kg) and PL-1 (30 mg/kg) was showed by acetylcholinesterase (AChE) inhibitory in brain structures. The molecular docking simulations were performed using Molegro Virtual Docker v6.0. Overall, the results indicated that ME-PL and PL-1 demonstrated an anti-edematogenic effect in Cg-induced paw edema, leukocyte migration in the pleurisy model, and significantly reduced mechanical hyperalgesia, cold response to acetone in mice. The samples exhibited maximal inhibition of enzyme acetylcholinesterase (AChE) in the frontal cortex. The molecular coupling of PL-1 with the AChE showed significant interactions with the catalytic and peripheral site, corroborating the activity presented in the inhibition assay. The acute administration of ME-PL did not cause signs of toxicity in the treated animals. The results showed that P. leiocarpa inhibited AChE and anti-inflammatory activity, and alkaloid vincosamide could be responsible, at least in part, for the observed effects, supporting the popular use of this genus.
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Huang DD, Shi G, Jiang Y, Yao C, Zhu C. A review on the potential of Resveratrol in prevention and therapy of diabetes and diabetic complications. Biomed Pharmacother 2020; 125:109767. [PMID: 32058210 DOI: 10.1016/j.biopha.2019.109767] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [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: 10/04/2019] [Revised: 11/18/2019] [Accepted: 11/29/2019] [Indexed: 02/08/2023] Open
Abstract
Diabetes mellitus (DM) is a major world health problem and one of the most studied diseases, which are highly prevalent in the whole world, it is frequently associated with severe clinical complications, such as diabetic cardiomyopathy, nephropathy, retinopathy, neuropathy etc. Scientific research is continuously casting about for new monomer molecules from Chinese herbal medicine that could be invoked as candidate drugs for fighting against diabetes and its complications. Resveratrol (RES), a polyphenol phytoalexin, possesses diverse biochemical and physiological actions, including antiplatelet, estrogenic, and anti-inflammatory properties. It is recently gaining scientific interest for RES in controlling blood sugar and fighting against diabetes and its complications properties in various types of diabetic models. These beneficial effects seem to be due to the multiple actions of RES on cellular functions, which make RES become a promising molecule for the treatment of diabetes and diabetic complications. Here, we review the mechanism of action and potential therapeutic use of RES in prevention and mitigation of these diseases in recent ten years to provide a reference for further research and development of RES.
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Affiliation(s)
- Dan-Dan Huang
- Department of Pharmacy, The Second Affiliated Hospital of Fujian Medical University, Fujian, 362000, China
| | - Guangjiang Shi
- School of pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Yaping Jiang
- School of Pharmacology, Ningxia Hui Medicine Modern Engineering Research Center and Collaborative Innovation Center, Ningxia Medical University, Yinchuan, 750004, China
| | - Chao Yao
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, Nanjing, 211198, China
| | - Chuanlin Zhu
- Department of Laboratory Medicine, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, 400021, China.
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Kunnel SG, Subramanya S, Satapathy P, Sahoo I, Zameer F. Acrylamide Induced Toxicity and the Propensity of Phytochemicals in Amelioration: A Review. Cent Nerv Syst Agents Med Chem 2020; 19:100-113. [PMID: 30734688 DOI: 10.2174/1871524919666190207160236] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [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: 11/28/2018] [Revised: 01/19/2019] [Accepted: 01/29/2019] [Indexed: 12/11/2022]
Abstract
Acrylamide is widely found in baked and fried foods, produced in large amount in industries and is a prime component in toxicity. This review highlights various toxicities that are induced due to acrylamide, its proposed mode of action including oxidative stress cascades and ameliorative mechanisms using phytochemicals. Acrylamide formation, the mechanism of toxicity and the studies on the role of oxidative stress and mitochondrial dysfunctions are elaborated in this paper. The various types of toxicities caused by Acrylamide and the modulation studies using phytochemicals that are carried out on various type of toxicity like neurotoxicity, hepatotoxicity, cardiotoxicity, immune system, and skeletal system, as well as embryos have been explored. Lacunae of studies include the need to explore methods for reducing the formation of acrylamide in food while cooking and also better modulators for alleviating the toxicity and associated dysfunctions along with identifying its molecular mechanisms.
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Affiliation(s)
- Shinomol George Kunnel
- Department of Biotechnology, Dayananda Sagar College of Engineering (An Autonomous Institute Affiliated to VTU, Belagavi), Shavige Malleshwara Hills, Kumaraswamy Layout, Bengaluru - 560 078, Karnataka, India
| | - Sunitha Subramanya
- Department of Biotechnology, Dayananda Sagar College of Engineering (An Autonomous Institute Affiliated to VTU, Belagavi), Shavige Malleshwara Hills, Kumaraswamy Layout, Bengaluru - 560 078, Karnataka, India
| | - Pankaj Satapathy
- Department of Biological Sciences, School of Basic and Applied Sciences, Dayananda Sagar University, Shavige Malleshwara Hills, Kumaraswamy Layout, Bengaluru-560 078, Karnataka, India
| | - Ishtapran Sahoo
- Molecular Biology, Thermo Fisher Scientific, Bangalore- 560066, India
| | - Farhan Zameer
- Department of Biological Sciences, School of Basic and Applied Sciences, Dayananda Sagar University, Shavige Malleshwara Hills, Kumaraswamy Layout, Bengaluru-560 078, Karnataka, India
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Wang X, Fang H, Xu G, Yang Y, Xu R, Liu Q, Xue X, Liu J, Wang H. Resveratrol Prevents Cognitive Impairment in Type 2 Diabetic Mice by Upregulating Nrf2 Expression and Transcriptional Level. Diabetes Metab Syndr Obes 2020; 13:1061-1075. [PMID: 32308456 PMCID: PMC7150671 DOI: 10.2147/dmso.s243560] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 03/26/2020] [Indexed: 12/18/2022] Open
Abstract
PURPOSE This study aimed to determine whether the natural antioxidant resveratrol (RSV) prevents type 2 diabetes mellitus (T2DM)-induced cognitive impairment and to explore whether redox-associated factor nuclear factor erythroid 2-related factor 2 (Nrf2) plays a critical role in the neuroprotective effect of RSV. MATERIALS AND METHODS We established a T2DM model with 8-week-old male ICR mice by administration of a high-fat diet for 2 months and low-dose streptozotocin for 3 days. Then, diabetic and age-matched control mice were treated with or without RSV for 4 months every other day and subjected to the Morris water maze test. After the mice were euthanized, whole brains were sectioned for Nissl staining and immunofluorescence labeling. Hippocampal sections were observed by transmission electron microscopy to evaluate the ultrastructure of synapses. Inflammatory factors, oxidative stress-related indexes, and Nrf2 and downstream target gene expression were analyzed in hippocampal tissues by quantitative real-time PCR, Western blotting, and associated quantitative kits. RESULTS In the Morris water maze test, compared to control mice, T2DM mice showed learning and memory impairments, but RSV treatment prevented the learning and memory decline in T2DM mice. Similarly, RSV prevented T2DM-induced hippocampal neuron destruction and synaptic ultrastructural damage. The expression levels of inflammatory factors and oxidative stress-related indicators were increased in the T2DM group compared with the control group but were decreased significantly by RSV treatment in the T2DM group. Additionally, the expression of Nrf2 and its downstream target genes was decreased in the T2DM group compared with the control group and was significantly increased by RSV treatment in the T2DM group. CONCLUSION RSV prevented T2DM-induced cognitive impairment through anti-inflammatory and antioxidant activities. This effect was accompanied by the upregulation of Nrf2 transcriptional activity and the increased expression of downstream antioxidant genes.
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Affiliation(s)
- Xiaoxiao Wang
- Department of Internal Medicine, Hebei Medical University, Shijiazhuang, Hebei050017, People’s Republic of China
| | - Hui Fang
- Second Department of Endocrinology, Tangshan Gongren Hospital, Tangshan, Hebei063000, People’s Republic of China
- Correspondence: Hui Fang Second Department of Endocrinology, Tangshan Gongren Hospital, 27 Wenhua Road, Lubei District, Tangshan, Hebei063000, People’s Republic of ChinaTel +86-13831581838Fax +00863152814801 Email
| | - Gang Xu
- Department of Burns and Orthopedics, Tangshan Gongren Hospital, Tangshan, Hebei063000, People’s Republic of China
| | - Ying Yang
- Second Department of Endocrinology, Tangshan Gongren Hospital, Tangshan, Hebei063000, People’s Republic of China
| | - Ruizhe Xu
- Department of Clinical Medicine, Tangshan Vocational and Technical College, Tangshan, Hebei, 063000, People’s Republic of China
| | - Qiang Liu
- Department of Internal Medicine, North China University of Science and Technology, Tangshan, Hebei063000, People’s Republic of China
| | - Xiangyu Xue
- Department of Internal Medicine, North China University of Science and Technology, Tangshan, Hebei063000, People’s Republic of China
| | - Jiaqi Liu
- Department of Internal Medicine, North China University of Science and Technology, Tangshan, Hebei063000, People’s Republic of China
| | - Hezhi Wang
- Department of Surgery, Hebei Medical University, Shijiazhuang050017, People’s Republic of China
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Wang C, Shen Z, Yu J, Yang J, Meng F, Jiang X, Zhu C. Protective effects of enzyme degradation extract from Porphyra yezoensis against oxidative stress and brain injury in d -galactose-induced ageing mice. Br J Nutr 2020; 123:975-86. [DOI: 10.1017/s0007114519003088] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Sakayanathan P, Loganathan C, Kandasamy S, Ramanna RV, Poomani K, Thayumanavan P. In vitro and in silico analysis of novel astaxanthin-s-allyl cysteine as an inhibitor of butyrylcholinesterase and various globular forms of acetylcholinesterases. Int J Biol Macromol 2019; 140:1147-57. [DOI: 10.1016/j.ijbiomac.2019.08.168] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 08/02/2019] [Accepted: 08/19/2019] [Indexed: 12/30/2022]
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Abstract
Because cadmium (Cd) is not naturally degradable by ecosystems, it interferes with many types of food chains. Cd accumulates in the kidney, liver and in the nervous tissues, especially the brain. The neurotoxicity of Cd is very high, as it alters the integrity, and increases the permeability, of the blood–brain barrier. Cd penetrates and accumulates in neurons in the brains of rats. This study reveals that Cd decreases antioxidant enzymes and increases oxidative stress in the brain. In addition, Cd increases lipid peroxidation of brain tissues. Cd increases the expression of the Cu/Zn superoxide dismutase gene. It also affects cholinergic, glutamatergic, gamma-Aminobutyric acid (GABAergic), dopamine, serotonin and acetylcholine neurotransmitters in brain tissue. Consequently, Cd increases the formation of amyloid β, a neurotoxic index, and induces apoptosis by changing the quality and the quantity of Bcl-2, Bax and p53 proteins. In conclusion, both selenium and nanoselenium show potential antioxidant activity and promote recovery from the neurotoxic action of Cd.
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Affiliation(s)
- MA Al Kahtani
- Department of Biology, Science College, King Khalid University, Abha, Saudi Arabia
- Research Centre for Advanced Materials Science (RCAMS), King Khalid University, Abha, Saudi Arabia
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El-Mehi AE, Faried MA. Controlled ozone therapy modulates the neurodegenerative changes in the frontal cortex of the aged albino rat. Ann Anat 2019; 227:151428. [PMID: 31610254 DOI: 10.1016/j.aanat.2019.151428] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 01/16/2019] [Revised: 08/02/2019] [Accepted: 09/20/2019] [Indexed: 01/09/2023]
Abstract
Aging is a normal process associated with neurodegenerative changes resulting in decline of cognitive and motor functions. Oxidative stress plays an important role. Controlled ozone (O3) therapy has been proved to induce oxidative preconditioning thus reversing oxidative stress. To the best of our knowledge, this research is the first attempt to investigate whether the antioxidant properties of O3 can ameliorate age-associated structural alterations of the cerebral cortex. Ozone administration (at a dose of 0.7mg/kg intraperitonially, three times a week for eight weeks) produced significant downregulation of tissue malondialdehyde (MDA) and upregulation of glutathione, superoxide dismutase (SOD) and catalase (CAT) within the frontal cortex of aged rats. Sections of the frontal cortex from adult and aged rats were stained with hematoxylin and eosin and analyzed using light microscopy. In addition, quantitative immunohistochemical assessments of the expression of inducible nitric oxide synthase (iNOS), caspase-3, glial fibrillary acidic protein (GFAP), Ki67 and acetylcholinesterase (AChE) were performed. Our results revealed the beneficial effect of O3 in improving the neurodegenerative changes of the cerebral cortex of aged rats. Moreover, this study clarified that O3 exerted its effects via reducing oxidative stress, apoptosis, gliosis as well as improving neurogenesis and cholinergic plasticity. This work added to the previously proved aging - associated neurodegenerative effects and provided a new insight into the promising role of O3 to ameliorate these effects.
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Affiliation(s)
- Abeer E El-Mehi
- Department of Anatomy and Embryology, Faculty of Medicine, Menoufia University, Menoufia, Egypt
| | - Manar A Faried
- Department of Anatomy and Embryology, Faculty of Medicine, Menoufia University, Menoufia, Egypt.
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Zhang S, Xue R, Hu R. The neuroprotective effect and action mechanism of polyphenols in diabetes mellitus-related cognitive dysfunction. Eur J Nutr 2019; 59:1295-1311. [PMID: 31598747 DOI: 10.1007/s00394-019-02078-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [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: 01/08/2019] [Accepted: 08/10/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND Diabetes mellitus (DM) is a complex and prevalent metabolic disorder worldwide. Strong evidence has emerged that DM is a risk factor for the accelerated rate of cognitive decline and the development of dementia. Though traditional pharmaceutical agents are efficient for the management of DM and DM-related cognitive decrement, long-term use of these drugs are along with undesired side effects. Therefore, tremendous studies have focused on the therapeutic benefits of natural compounds at present. Ample evidence exists to prove that polyphenols are capable to modulate diabetic neuropathy with minimal toxicity and adverse effects. PURPOSE To describe the benefits and mechanisms of polyphenols on DM-induced cognitive dysfunction. In this review, we introduce an updated overview of associations between DM and cognitive dysfunction. The risk factors as well as pathological and molecular mechanisms of DM-induced cognitive dysfunction are summarized. More importantly, many active polyphenols that possess preventive and therapeutic effects on DM-induced cognitive dysfunction and the potential signaling pathways involved in the action are highlighted. CONCLUSIONS The therapeutic effects of polyphenols on DM-related cognitive dysfunction pave a novel way for the management of diabetic encephalopathy.
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Affiliation(s)
- Shenshen Zhang
- College of Public Health, Zhengzhou University, Zhengzhou, China.
| | - Ran Xue
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Ruizhe Hu
- School of Physical Education (Main Campus), Zhengzhou University, Zhengzhou, China.
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Kumar PP, K. V. HP. Low Molecular Weight Chitosan (∼20 kDa) protects acrylamide induced oxidative stress in D. melanogaster by restoring dopamine and KIF5B levels. Carbohydr Polym 2019; 222:115005. [DOI: 10.1016/j.carbpol.2019.115005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 06/06/2019] [Accepted: 06/18/2019] [Indexed: 12/18/2022]
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Abstract
The pathophysiology of many neurological disorders involves oxidative stress, neuroinflammation, and mitochondrial dysfunction. There is now substantial evidence that diet can decrease these forms of pathophysiology, and an emerging body of literature relatedly suggests that diet can also prevent or even remediate the cognitive deficits observed in neurological disorders that exhibit such pathology (eg, Alzheimer's disease, multiple sclerosis, age-related cognitive decline, epilepsy). The current review summarizes the emerging evidence in relation to whole diets prominent in the scientific literature-ketogenic, caloric restriction, high polyphenol, and Mediterranean diets-and provides a discussion of the possible underlying neurophysiological mechanisms.
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Affiliation(s)
- Heather M Francis
- Psychology Department, Faculty of Human Sciences, Macquarie University, North Ryde, New South Wales, Australia
| | - Richard J Stevenson
- Psychology Department, Faculty of Human Sciences, Macquarie University, North Ryde, New South Wales, Australia
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Abidar S, Yildiz O, Degirmenci A, Amakran A, El Maadoudi M, Nhiri M. Glucose-mediated protein glycation: Contribution of methanolic extract of Ceratonia siliqua L. in protection and in vitro potential inhibition of acetylcholinesterase. J Food Biochem 2019; 43:e13009. [PMID: 31393019 DOI: 10.1111/jfbc.13009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 05/10/2019] [Revised: 07/02/2019] [Accepted: 07/12/2019] [Indexed: 01/11/2023]
Abstract
Chronic hyperglycemia presents the major etiology of diabetes mellitus and related complications mainly Alzheimer's disease, via the protein glycation and toxic products generated. In the current study, we investigated the eventual protective effect of the methanolic extract of Ceratonia siliqua L. (CsME) against glucose-mediated glycation in serum bovine albumin. The multi-stage glycation markers, namely fructosamines and advanced glycation end products (AGEs) levels were monitored along with measurement of thiol groups; moreover, the in vitro acetylcholinesterase (AChE) inhibition potential was carried out. HPLC was also assessed. Rutin was the main phenolic compound found in CsME. CsME showed a good capacity to inhibit AGEs, fructosamines and protected thiol groups against glycation. CsME exhibited a great AChE inhibition activity. In the present study, CsME prevented glucose-induced protein glycation, it also exhibited a good inhibition of AChE, suggesting its DM complications such as memory troubles related to AD. PRACTICAL APPLICATIONS: Neurodegenerative disorders ranging from memory troubles to Alzheimer's disease present the most diabetes mellitus complications and mainly attributed to protein glycation process. Currently, there is a strong trend to search for efficient natural sources of glycation and acetylcholinesterase inhibitors to replace the synthetic ones, whose secondary effects were shown. The present article tries to justify scientifically the wide use of Ceratonia siliqua L. in Moroccan folk medicine, demonstrating that the methanolic extract of leaves from this species presents a promising source of new natural compounds inhibiting acetylcholinesterase and acting in vitro against glycation generated compounds. Furthermore, for the first time, Rutin was the main phenolic compound found in this extract, these encouraging results should be coupled with further studies to integrate it in pharmaceutical formulations. As such, this paper should be of interest to a broad readership, including those interested in Biochemistry, Phytochemistry, pharmacology, and neurosciences.
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Affiliation(s)
- Sara Abidar
- Laboratoire de Biochimie et Génétique Moléculaire, Faculté des Sciences et Techniques, Université Abdelmalek Essaâdi, Tanger Principal, Morocco
| | - Oktay Yildiz
- Maçka VHS, Department of Food Processing, Karadeniz Technical University, Trabzon, Turkey
| | - Atiye Degirmenci
- Maçka VHS, Department of Food Processing, Karadeniz Technical University, Trabzon, Turkey
| | - Amina Amakran
- Laboratoire de Biochimie et Génétique Moléculaire, Faculté des Sciences et Techniques, Université Abdelmalek Essaâdi, Tanger Principal, Morocco
| | - Mohammed El Maadoudi
- Laboratoire Régional d'Analyses et de Recherches de l'ONSSA (office national de sécurité sanitaire des produits alimentaires), Tanger, Maroc
| | - Mohamed Nhiri
- Laboratoire de Biochimie et Génétique Moléculaire, Faculté des Sciences et Techniques, Université Abdelmalek Essaâdi, Tanger Principal, Morocco
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Trabelsi W, Chetoui I, Fouzai C, Bejaoui S, Rabeh I, Telahigue K, Chalghaf M, El Cafsi M, Soudani N. Redox status and fatty acid composition of Mactra corallina digestive gland following exposure to acrylamide. Environ Sci Pollut Res Int 2019; 26:22197-22208. [PMID: 31148000 DOI: 10.1007/s11356-019-05492-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Accepted: 05/15/2019] [Indexed: 06/09/2023]
Abstract
Acrylamide (ACR), a ubiquitous agent, has various chemical and industrial applications, and it is found in backed or fried carbohydrate-rich food. It has been related to multiple toxicological effects, and it causes high cytotoxicity through oxidative stress. The present study aimed to investigate the potential effect of ACR toxicity administered at different concentrations (5, 10, and 20 mg/L), during 5 days, in order to evaluate the fatty acid (FA) composition and redox state in the digestive gland of Mactra corallina. The results showed, in ACR-treated clams, a significant increase in malondialdehyde, hydrogen peroxide, protein carbonyl, and metallothionein levels, as well as an alteration of the enzymatic (superoxide dismutase, glutathione peroxidase, and catalase) and non-enzymatic (reduced glutathione and ascorbic acid) antioxidant status. However, acetylcholinesterase activity was inhibited in a concentration-dependent manner. In our experiment, the n-3 (Omega-3) and n-6 (Omega-6) polyunsaturated fatty acid levels were significantly changed in all ACR-treated groups. A decrease in eicosapentaenoic acid (C20:5n-3, EPA) and docosahexaenoic acid (C22:6n-3, DHA) was observed in 10-mg/L and 20-mg/L ACR-treated groups. Nevertheless, arachidonic acid (C20:4n-6, ARA) and its precursor linoleic acid (C18:2n-6, LA) were increased. Besides oxidative stress parameters, FA composition may be an additional tool for assessing ACR contamination.
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Affiliation(s)
- Wafa Trabelsi
- Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, Department of Biology, Tunis Faculty of Sciences, University of Tunis El Manar, 2092, Tunis, Tunisia.
| | - Imene Chetoui
- Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, Department of Biology, Tunis Faculty of Sciences, University of Tunis El Manar, 2092, Tunis, Tunisia
| | - Chaima Fouzai
- Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, Department of Biology, Tunis Faculty of Sciences, University of Tunis El Manar, 2092, Tunis, Tunisia
| | - Safa Bejaoui
- Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, Department of Biology, Tunis Faculty of Sciences, University of Tunis El Manar, 2092, Tunis, Tunisia
| | - Imen Rabeh
- Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, Department of Biology, Tunis Faculty of Sciences, University of Tunis El Manar, 2092, Tunis, Tunisia
| | - Khaoula Telahigue
- Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, Department of Biology, Tunis Faculty of Sciences, University of Tunis El Manar, 2092, Tunis, Tunisia
| | - Mohamed Chalghaf
- Aquatic Environment Exploitation Resources Unit, Higher Institute Fishing and Fish Farming of Bizerte, Bizerte, Tunisia
| | - Mhamed El Cafsi
- Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, Department of Biology, Tunis Faculty of Sciences, University of Tunis El Manar, 2092, Tunis, Tunisia
| | - Nejla Soudani
- Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, Department of Biology, Tunis Faculty of Sciences, University of Tunis El Manar, 2092, Tunis, Tunisia
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Mehta BK, Banerjee S. Minocycline reverses diabetes-associated cognitive impairment in rats. Pharmacol Rep 2019; 71:713-720. [PMID: 31207433 DOI: 10.1016/j.pharep.2019.03.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 08/12/2018] [Revised: 02/12/2019] [Accepted: 03/19/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND Minocycline a tetracycline antibiotic is known for anti-inflammatory and neuroprotective actions. Here we determine the therapeutic potential of minocycline against type 2 diabetes associated cognitive decline in rats. METHODS High fat diet (HFD) and low dose streptozotocin (STZ; 25 mg/kg) were used to induce diabetes in Sprague-Dawley rats. Fasting blood glucose and haemoglobin (Hb) A1c were measured in these animals. Cognitive parameters were measured using passive avoidance and elevated plus maze test. Hippocampal Acetylcholine esterase (AchE), reduced glutathione (GSH), cytokines, chemokine levels were measured and histopathological evaluations were conducted. The diabetic animals were then given minocycline (50 mg/kg; 15 days) and the above parameters were reassessed. MTT and Lactate dehydrogenase (LDH) assays were conducted on neuronal cells in the presence of glucose with or without minocycline treatment. RESULTS We induced diabetes using HFD and STZ in these animals. Animals showed high fasting blood glucose levels (>245 mg/dl) and HbA1c compared to control animals. Diabetes significantly lowered step down latency and increased transfer latency. Diabetic animals showed significantly higher AchE, Tumor necrosis factor (TNF)-α, Interleukin (IL)-1β and Monocyte chemoattractant protein (MCP)-1 and lower GSH levels and reduced both CA1 and CA3 neuronal density compared to controls. Minocycline treatment partially reversed the above neurobehavioral and biochemical changes and improved hippocampal neuronal density in diabetic animals. Cell line studies showed glucosemediated neuronal death, which was considerably reversed upon minocycline treatment. CONCLUSIONS Minocycline, primarily by its anti-inflammatory and antioxidant actions prevented hippocampal neuronal loss thus partially reversing the diabetes-associated cognitive decline in rats.
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Affiliation(s)
- Bina K Mehta
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India
| | - Sugato Banerjee
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India.
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Potì F, Santi D, Spaggiari G, Zimetti F, Zanotti I. Polyphenol Health Effects on Cardiovascular and Neurodegenerative Disorders: A Review and Meta-Analysis. Int J Mol Sci 2019; 20:E351. [PMID: 30654461 PMCID: PMC6359281 DOI: 10.3390/ijms20020351] [Citation(s) in RCA: 143] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/10/2019] [Accepted: 01/11/2019] [Indexed: 12/14/2022] Open
Abstract
Several studies have demonstrated that polyphenol-enriched diets may have beneficial effects against the development of degenerative diseases, including atherosclerosis and disorders affecting the central nervous system. This activity has been associated not only with antioxidant and anti-inflammatory properties, but also with additional mechanisms, such as the modulation of lipid metabolism and gut microbiota function. However, long-term studies on humans provided controversial results, making the prediction of polyphenol impact on health uncertain. The aim of this review is to provide an overview and critical analysis of the literature related to the effects of the principal dietary polyphenols on cardiovascular and neurodegenerative disorders. We critically considered and meta-analyzed randomized controlled clinical trials involving subjects taking polyphenol-based supplements. Although some polyphenols might improve specific markers of cardiovascular risk and cognitive status, many inconsistent data are present in literature. Therefore, definitive recommendations for the use of these compounds in the prevention of cardiovascular disease and cognitive decline are currently not applicable. Once pivotal aspects for the definition of polyphenol bioactivity, such as the characterization of pharmacokinetics and safety, are addressed, it will be possible to have a clear picture of the realistic potential of polyphenols for disease prevention.
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Affiliation(s)
- Francesco Potì
- Dipartimento di Medicina e Chirurgia, Unità di Neuroscienze, Università di Parma, via Volturno 39/F, 43125 Parma, Italy.
| | - Daniele Santi
- Dipartimento di Scienze Biomediche, Metaboliche e Neuroscienze, Unità di Endocrinologia, Università degli Studi di Modena e Reggio Emilia, via del Pozzo 71, 41124 Modena, Italy.
- Dipartimento di Medicine Specialistiche-Unità di Endocrinologia, Azienda Ospedaliero-Universitaria di Modena, Ospedale Civile di Baggiovara, via Giardini 1355, 41126 Modena, Italy.
| | - Giorgia Spaggiari
- Dipartimento di Medicine Specialistiche-Unità di Endocrinologia, Azienda Ospedaliero-Universitaria di Modena, Ospedale Civile di Baggiovara, via Giardini 1355, 41126 Modena, Italy.
| | - Francesca Zimetti
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università di Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy.
| | - Ilaria Zanotti
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università di Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy.
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Abstract
Resveratrol was first isolated in 1939 by Takaoka from Veratrum grandiflorum O. Loes. Following this discovery, sporadic descriptive reports appeared in the literature. However, spurred by our seminal paper published nearly 60 years later, resveratrol became a household word and the subject of extensive investigation. Now, in addition to appearing in over 20,000 research papers, resveratrol has inspired monographs, conferences, symposia, patents, chemical derivatives, etc. In addition, dietary supplements are marketed under various tradenames. Once resveratrol was brought to the limelight, early research tended to focus on pharmacological activities related to the cardiovascular system, inflammation, and cancer but, over the years, the horizon greatly expanded. Around 130 human clinical trials have been (or are being) conducted with varying results. This may be due to factors such as disparate doses (ca. 5 to 5,000 mg/day) and variable experimental settings. Further, molecular targets are numerous and a dominant mechanism is elusive or nonexistent. In this context, the compound is overtly promiscuous. Nonetheless, since the safety profile is pristine, and use as a dietary supplement is prevalent, these features are not viewed as detrimental. Given the ongoing history of resveratrol, it is reasonable to advocate for additional development and further clinical investigation. Topical preparations seem especially promising, as do conditions that can respond to anti-inflammatory action and/or direct exposure, such as colon cancer prevention. Although the ultimate fate of resveratrol remains an open question, thus far, the compound has inspired innovative scientific concepts and enhanced public awareness of preventative health care.
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Affiliation(s)
- John M Pezzuto
- Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA
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Baig MA, Panchal SS. Streptozotocin-Induced Diabetes Mellitus in Neonatal Rats: An Insight into its Applications to Induce Diabetic Complications. Curr Diabetes Rev 2019; 16:26-39. [PMID: 30973111 DOI: 10.2174/1573399815666190411115829] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 10/05/2018] [Revised: 03/04/2019] [Accepted: 04/05/2019] [Indexed: 12/19/2022]
Abstract
BACKGROUND Diabetic complications are the major contributor in the mortality of diabetic patients despite controlling blood glucose level. In the journey of new drug discovery, animal models have to play a major role. A large number of chemical-induced and genetically modified animal models have been investigated to induce diabetic complications but none of them was found to be mimicking the pathophysiology of the human. Therefore, the search and identification of the appropriate animal model become essential. OBJECTIVE In the present review, we have made an attempt to understand the pathophysiology of diabetic complication in the neonatal streptozotocin-diabetic rat model and tried to identify the targets for therapeutic agents. The review will help the researchers to explore the animal model to induce diabetic complications, to identify targets and further to find lead molecules for treatment or prevention of diabetic complications. METHODS We have compiled the available research work from 1974 by using prominent databases, organized the available information and analyzed the data to improve the understanding of the pathophysiology of streptozotocin-induced diabetic complications in neonates of rats. RESULTS The neonatal streptozotocin-diabetic rat model is frequently used and well-established animal model for type 2 diabetes mellitus. We have found that this model has been used to study the pathogenesis of various micro and macrovascular diabetic complications and also investigated for its effects on the liver, thymus gland, and brain. The underlying pathophysiology for complications had a resemblance to the human. CONCLUSION The neonatal streptozotocin-diabetic rat model may demonstrate symptomatic diabetic complications due to persistent hyperglycemia at the age of approximately 18-24 weeks. Critical interpretations of available research work showed that the researcher can explore split dose STZ (90- 100mg/kg b.w) model to induce Type 2 DM in neonates of rats at 2nd or 3rd postnatal day.
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Affiliation(s)
- Mirza Anwar Baig
- Department of Pharmacology, AI's Kalsekar Technical Campus, School of Pharmacy, Navi Mumbai, Maharashtra, India
- Department of Pharmcology, Institute of Pharmacy, Nirma University, Ahmedabad, Gujarat, India
| | - Shital Sharad Panchal
- Department of Pharmcology, Institute of Pharmacy, Nirma University, Ahmedabad, Gujarat, India
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Gocmez SS, Şahin TD, Yazir Y, Duruksu G, Eraldemir FC, Polat S, Utkan T. Resveratrol prevents cognitive deficits by attenuating oxidative damage and inflammation in rat model of streptozotocin diabetes induced vascular dementia. Physiol Behav 2018; 201:198-207. [PMID: 30550811 DOI: 10.1016/j.physbeh.2018.12.012] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [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: 08/16/2018] [Revised: 11/21/2018] [Accepted: 12/10/2018] [Indexed: 02/07/2023]
Abstract
Diabetes is one of the risk factors for the development of vascular dementia (VD), leading to endothelial dysfunction and cognitive impairment. Resveratrol has been shown to have antioxidant, antiinflammatory, and neuroprotective effects. The previous studies have also reported that resveratrol improves cognitive and vascular endothelial functions in several pathological conditions. In the present study we aimed to evaluate the effect of resveratrol on cognitive and vascular endothelial function and to explore the mechanisms of its effects in the streptozotocin-induced diabetic rat model of VD. Male Wistar rats were divided into 3 groups (n = 10 in each group): Control, diabetes (DM), DM + resveratrol (DM + RSV) groups. Rats from the DM + RSV group received resveratrol (20 mg/kg/day, ip) for 4 weeks after induction of diabetes and then cognitive functions of the rats were tested by the Morris water maze and a passive avoidance tests. After behavioral tests, endothelial function of thoracic aorta (the endothelium-dependent and -independent vasorelaxant responses) was investigated. To explore the mechanisms of resveratrol, endothelial eNOS, aortic superoxide dismutase (SOD), NADPH oxidase, heme oxygenase-1 (HO-1) levels, TNF-α and IL-1β expressions; serum SOD and NADPH oxidase levels and, hippocampal BDNF, TNF-α and IL-1β expressions were measured. It was shown that DM resulted in severe learning and memory deficits associated with endothelial dysfunction, increased expression of TNF-α and IL-1β, increased oxidative stress levels and decreased expression of eNOS and BDNF. In contrast, resveratrol treatment improved the cognitive decline. It was also found that chronic treatment with resveratrol ameliorated the impaired vascular reactivity. Reveratrol significantly reversed diabetes-induced changes of protein expression. Our data suggest that resveratrol prevents memory deficits, endothelial dysfunction, increased oxidative stress, inflammation and impairment of neurotrophin expression in a VD rat model. Thus, the vasculoprotective and neuroprotective effects of resveratrol may be beneficial in DM patients.
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Affiliation(s)
- Semil Selcen Gocmez
- Kocaeli University Faculty of Medicine, Department of Pharmacology, Kocaeli, Turkey.
| | - Tuğçe Demirtaş Şahin
- Kocaeli University Faculty of Medicine, Department of Pharmacology, Kocaeli, Turkey
| | - Yusufhan Yazir
- Kocaeli University Faculty of Medicine, Department of Histology and Embryology, Kocaeli, Turkey; Kocaeli University Center for Stem Cell and Gene Therapies Research and Practice, Institute of Health Sciences, Kocaeli, Turkey
| | - Gökhan Duruksu
- Kocaeli University Center for Stem Cell and Gene Therapies Research and Practice, Institute of Health Sciences, Kocaeli, Turkey
| | | | - Selen Polat
- Kocaeli University Center for Stem Cell and Gene Therapies Research and Practice, Institute of Health Sciences, Kocaeli, Turkey
| | - Tijen Utkan
- Kocaeli University Faculty of Medicine, Department of Pharmacology, Kocaeli, Turkey; Kocaeli University Experimental Medical Research and Application Centre, Kocaeli, Turkey
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