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Kaur K, Kulkarni YA, Wairkar S. Exploring the potential of quercetin in Alzheimer's Disease: Pharmacodynamics, Pharmacokinetics, and Nanodelivery systems. Brain Res 2024; 1834:148905. [PMID: 38565372 DOI: 10.1016/j.brainres.2024.148905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 03/04/2024] [Accepted: 03/30/2024] [Indexed: 04/04/2024]
Abstract
Alzheimer's disease (AD) is a primary cause of dementia that affects millions of people worldwide and its prevalence is likely to increase largely in the coming decades. Multiple complex pathways, such as oxidative stress, tau and amyloid-beta (Aβ) pathology, and cholinergic dysfunction, are involved in the pathogenesis of Alzheimer's disease. The conventional treatments provide only symptomatic relief and not a complete cure for the disease. On the other hand, recent studies have looked into the possibility of flavonoids as an effective therapeutic strategy for treating AD. Quercetin, a well-known flavonol, has been extensively studied for AD treatment. Therefore, this review mainly focuses on the pharmacokinetics properties of quercetin and its modes of action, such as antioxidant, anti-inflammatory, anti-amyloidogenic, and neuroprotective properties, which are beneficial in treating AD. It also highlights the nano delivery systems of quercetin, including liposomes, nanostructures lipid carriers, solid lipid nanoparticles, nanoemulsions, microemulsions, self-emulsifying drug delivery systems, and nanoparticles reported for AD treatment. The remarkable potential of quercetin nanocarriers has been reflected in enhancing its bioavailability and therapeutic efficacy. Therefore, clinical studies must be conducted to explore it as a therapeutic strategy for Alzheimer's disease.
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Affiliation(s)
- Komaldeep Kaur
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKMs NMIMS, V.L. Mehta Road, Vile Parle (W), Mumbai, Maharashtra 400056, India
| | - Yogesh A Kulkarni
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKMs NMIMS, V.L. Mehta Road, Vile Parle (W), Mumbai, Maharashtra 400056, India
| | - Sarika Wairkar
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKMs NMIMS, V.L. Mehta Road, Vile Parle (W), Mumbai, Maharashtra 400056, India.
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2
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Ugale V, Deshmukh R, Lokwani D, Narayana Reddy P, Khadse S, Chaudhari P, Kulkarni PP. GluN2B subunit selective N-methyl-D-aspartate receptor ligands: Democratizing recent progress to assist the development of novel neurotherapeutics. Mol Divers 2024; 28:1765-1792. [PMID: 37266849 PMCID: PMC10234801 DOI: 10.1007/s11030-023-10656-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 05/10/2023] [Indexed: 06/03/2023]
Abstract
N-methyl-D-aspartate receptors (NMDARs) play essential roles in vital aspects of brain functions. NMDARs mediate clinical features of neurological diseases and thus, represent a potential therapeutic target for their treatments. Many findings implicated the GluN2B subunit of NMDARs in various neurological disorders including epilepsy, ischemic brain damage, and neurodegenerative disorders such as Parkinson's disease, Alzheimer's disease, Huntington's chorea, and amyotrophic lateral sclerosis. Although a large amount of information is growing consistently on the importance of GluN2B subunit, however, limited recent data is available on how subunit-selective ligands impact NMDAR functions, which blunts the ability to render the diagnosis or craft novel treatments tailored to patients. To bridge this gap, we have focused on and summarized recently reported GluN2B selective ligands as emerging subunit-selective antagonists and modulators of NMDAR. Herein, we have also presented an overview of the structure-function relationship for potential GluN2B/NMDAR ligands with their binding sites and connection to CNS functionalities. Understanding of design rules and roles of GluN2B selective compounds will provide the link to medicinal chemists and neuroscientists to explore novel neurotherapeutic strategies against dysfunctions of glutamatergic neurotransmission.
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Affiliation(s)
- Vinod Ugale
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra, India.
- Bioprospecting Group, Agharkar Research Institute, Pune, Maharashtra, India.
| | - Rutuja Deshmukh
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra, India
| | - Deepak Lokwani
- Rajarshi Shahu College of Pharmacy, Buldana, Maharashtra, India
| | - P Narayana Reddy
- Department of Chemistry, School of Science, GITAM Deemed to be University, Hyderabad, India
| | - Saurabh Khadse
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra, India
| | - Prashant Chaudhari
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra, India
| | - Prasad P Kulkarni
- Bioprospecting Group, Agharkar Research Institute, Pune, Maharashtra, India.
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3
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López-Bascón MA, Moscoso-Ruiz I, Quirantes-Piné R, del Pino-García R, López-Gámez G, Justicia-Rueda A, Verardo V, Quiles JL. Characterization of Phenolic Compounds in Extra Virgin Olive Oil from Granada (Spain) and Evaluation of Its Neuroprotective Action. Int J Mol Sci 2024; 25:4878. [PMID: 38732097 PMCID: PMC11084348 DOI: 10.3390/ijms25094878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 04/18/2024] [Accepted: 04/26/2024] [Indexed: 05/13/2024] Open
Abstract
The olive oil sector is a fundamental food in the Mediterranean diet. It has been demonstrated that the consumption of extra virgin olive oil (EVOO) with a high content of phenolic compounds is beneficial in the prevention and/or treatment of many diseases. The main objective of this work was to study the relationship between the content of phenolic compounds and the in vitro neuroprotective and anti-inflammatory activity of EVOOs from two PDOs in the province of Granada. To this purpose, the amounts of phenolic compounds were determined by liquid chromatography coupled to mass spectrometry (HPLC-MS) and the inhibitory activity of acetylcholinesterase (AChE) and cyclooxygenase-2 (COX-2) enzymes by spectrophotometric and fluorimetric assays. The main families identified were phenolic alcohols, secoiridoids, lignans, flavonoids, and phenolic acids. The EVOO samples with the highest total concentration of compounds and the highest inhibitory activity belonged to the Picual and Manzanillo varieties. Statistical analysis showed a positive correlation between identified compounds and AChE and COX-2 inhibitory activity, except for lignans. These results confirm EVOO's compounds possess neuroprotective potential.
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Affiliation(s)
- María Asunción López-Bascón
- Centro de Investigación y Desarrollo del Alimento Funcional (CIDAF), Avda. Del Conocimiento, 37, 18016 Granada, Spain; (M.A.L.-B.)
| | - Inmaculada Moscoso-Ruiz
- Centro de Investigación y Desarrollo del Alimento Funcional (CIDAF), Avda. Del Conocimiento, 37, 18016 Granada, Spain; (M.A.L.-B.)
| | - Rosa Quirantes-Piné
- Department of Analytical Chemistry, University of Granada, Avda. Fuentenueva S/N, 18071 Granada, Spain;
| | - Raquel del Pino-García
- Centro de Investigación y Desarrollo del Alimento Funcional (CIDAF), Avda. Del Conocimiento, 37, 18016 Granada, Spain; (M.A.L.-B.)
| | - Gloria López-Gámez
- Centro de Investigación y Desarrollo del Alimento Funcional (CIDAF), Avda. Del Conocimiento, 37, 18016 Granada, Spain; (M.A.L.-B.)
| | - Andrea Justicia-Rueda
- Centro de Investigación y Desarrollo del Alimento Funcional (CIDAF), Avda. Del Conocimiento, 37, 18016 Granada, Spain; (M.A.L.-B.)
| | - Vito Verardo
- Centro de Investigación y Desarrollo del Alimento Funcional (CIDAF), Avda. Del Conocimiento, 37, 18016 Granada, Spain; (M.A.L.-B.)
- Department of Nutrition and Food Science, Institute of Nutrition and Food Technology “José Mataix Verdú”, Biomedical Research Centre, University of Granada, 18071 Granada, Spain
| | - José L. Quiles
- Department of Physiology, Institute of Nutrition and Food Technology “José Mataix Verdú”, Biomedical Research Centre, University of Granada, 18016 Armilla, Spain
- Research Group on Foods, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Isabel Torres, 21, 39011 Santander, Spain
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4
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Sharma M, Aggarwal N, Mishra J, Panda JJ. Neuroglia targeting nano-therapeutic approaches to rescue aging and neurodegenerating brain. Int J Pharm 2024; 654:123950. [PMID: 38430951 DOI: 10.1016/j.ijpharm.2024.123950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 02/12/2024] [Accepted: 02/25/2024] [Indexed: 03/05/2024]
Abstract
Despite intense efforts at the bench, the development of successful brain-targeting therapeutics to relieve malicious neural diseases remains primitive. The brain, being a beautifully intricate organ, consists of heterogeneous arrays of neuronal and glial cells. Primarily acting as the support system for neuronal functioning and maturation, glial cells have been observed to be engaged more apparently in the progression and worsening of various neural pathologies. The diseased state is often related to metabolic alterations in glial cells, thereby modulating their physiological homeostasis in conjunction with neuronal dysfunction. A plethora of data indicates the effect of oxidative stress, protein aggregation, and DNA damage in neuroglia impairments. Still, a deeper insight is needed to gain a conflict-free understanding in this arena. As a consequence, glial cells hold the potential to be identified as promising targets for novel therapeutic approaches aimed at brain protection. In this review, we describe the recent strides taken in the direction of understanding the impact of oxidative stress, protein aggregation, and DNA damage on neuroglia impairment and neuroglia-directed nanotherapeutic approaches to mitigate the burden of various neural disorders.
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Affiliation(s)
- Manju Sharma
- Institute of Nano Science and Technology, Mohali, Punjab 140306, India
| | - Nidhi Aggarwal
- Institute of Nano Science and Technology, Mohali, Punjab 140306, India
| | - Jibanananda Mishra
- School of Biosciences, RIMT University, Mandi Gobindgarh, Punjab 147301, India.
| | - Jiban Jyoti Panda
- Institute of Nano Science and Technology, Mohali, Punjab 140306, India.
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Kuşi M, Becer E, Vatansever HS, Yücecan S. Neuroprotective Effects of Hesperidin and Naringin in SK-N-AS Cell as an In Vitro Model for Alzheimer's Disease. JOURNAL OF THE AMERICAN NUTRITION ASSOCIATION 2023; 42:418-426. [PMID: 35776430 DOI: 10.1080/07315724.2022.2062488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Hesperidin and naringin are flavonoids that are found in citrus fruits. Our aim was to create an in vitro model of Alzheimer's disease (AD) and to evaluate the neuroprotective effects of hesperidin and naringin in SK-N-AS and AD model cells. Aβ25-35 was used to create an AD model in SK-N-AS cells. The cytotoxicity of hesperidin and naringin was evaluated using MTT. β-amyloid, tau and α-synuclein distributions were analyzed using indirect immunoperoxidase staining to investigate the neuroprotective effects of hesperidin and naringin. The AD model was created by 1 µM of Aβ25-35 for 48 hours after ThT staining. The intensity of β-amyloid was reduced through both hesperidin and naringin treatment in AD model cells. Both flavonoids significantly decreased the intensity of α-synuclein in SK-N-AS and AD model cells. Hesperidin and naringin can be potentially used as neuroprotective agents. Naringin may be more effective than hesperidin in the accumulation of β-amyloid and tau proteins.
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Affiliation(s)
- Müjgan Kuşi
- Faculty of Health Sciences, Department of Nutrition and Dietetics, Near East University, Nicosia, Mersin 10 Turkey
| | - Eda Becer
- Faculty of Pharmacy, Department of Biochemistry, Near East University, Nicosia, Mersin 10 Turkey
- DESAM Institute, Near East University, Nicosia, Mersin 10 Turkey
| | - Hafize Seda Vatansever
- DESAM Institute, Near East University, Nicosia, Mersin 10 Turkey
- Faculty of Medicine, Department of Histology and Embryology, Manisa Celal Bayar University, Manisa, Turkey
| | - Sevinç Yücecan
- Faculty of Health Sciences, Department of Nutrition and Dietetics, Lokman Hekim University, Ankara, Turkey
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Choi EM, Park SY, Suh KS, Chon S. Apigenin attenuates tetrabromobisphenol A-induced cytotoxicity in neuronal SK-N-MC cells. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2023; 58:152-162. [PMID: 36843298 DOI: 10.1080/10934529.2023.2182581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 01/26/2023] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
Tetrabromobisphenol A (TBBPA) is a reactive brominated flame retardant widely used in various industrial and household products. This compound is persistent in the environment and accumulates in living organisms through the food chain, and is toxic to animals and human beings. Studies have shown that TBBPA is toxic to various human cell lines, including neuronal cells. Apigenin is a dietary flavonoid that exhibits various beneficial health effects on biological activities, including antioxidant, anti-inflammatory, and neuroprotective effects. This study investigated the cytoprotective effects of apigenin against TBBPA-mediated cytotoxicity in SK-N-MC cells. Our results demonstrated that treatment of SK-N-MC cells with apigenin increased the cell viability, which was decreased by TBBPA, and reduced apoptosis and autophagy induced by TBBPA. Although we did not observe any change in the levels of IL-1β and nitrite in cultured cells after TBBPA treatment, apigenin was found to decrease the production of these pro-inflammatory mediators. Apigenin decreased the intracellular Ca2+ concentration, NOX4 level, oxidative stress, and mitochondrial membrane potential loss and increased the mitochondrial biogenesis and nuclear Nrf2 levels that were reduced by TBBPA. Finally, apigenin treatment decreased Akt and ERK induction in cells exposed to TBBPA. Based on these results, apigenin could be a promising candidate for designing natural drugs to treat or prevent TBBPA-related neurological disorders.
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Affiliation(s)
- Eun Mi Choi
- Department of Endocrinology & Metabolism, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - So Young Park
- Department of Endocrinology & Metabolism, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
- Department of Endocrinology & Metabolism, Kyung Hee University Hospital, Seoul, Republic of Korea
| | - Kwang Sik Suh
- Department of Endocrinology & Metabolism, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Suk Chon
- Department of Endocrinology & Metabolism, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
- Department of Endocrinology & Metabolism, Kyung Hee University Hospital, Seoul, Republic of Korea
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7
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Two polyphenols isolated from Corallodiscus flabellata B. L. Burtt ameliorate amyloid β-protein induced Alzheimer's disease neuronal injury by improving mitochondrial homeostasis. Behav Brain Res 2023; 440:114264. [PMID: 36535434 DOI: 10.1016/j.bbr.2022.114264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 12/02/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
Corallodiscus flabellata B. L. Burtt (CF) is a Chinese folk herb with reported potential for the treatment of Alzheimer's disease (AD). 3,4-Dihydroxyphenylethanol-8-O-[4-O-trans-caffeoyl-β-D-apiofuranosyl-(1→3)-β-D-glucopyranosyl (1→6)][1]-β-D-glucopyranoside (SDC-1-8) and hydroxytyrosol (HT) are two polyphenolic compounds isolated from CF. The aim of this study was to investigate the protective effects of SDC-1-8 and HT on an Aβ25-35-induced AD model and to study the underlying mechanism. The AD mouse model was established using a brain injection of amyloid β-protein 25-35 (Aβ25-35, 200 μM), followed by continuous administration of SDC-1-8 and HT for 4 weeks, and found that they improved cognitive dysfunction; ameliorated neuronal damage and apoptosis; decreased oxidative stress, and mitochondrial fission protein levels; and increased mitochondrial fusion protein levels in AD mice. Moreover, SDC-1-8 and HT inhibited mitochondrial membrane depolarization, reduced intracellular stored Ca2+ levels, enhanced mitochondrial respiration, increased mitochondrial fusion, and decreased mitochondrial division in Aβ25-35-induced PC12 cells even in the presence of mdivi-1. Furthermore, molecular docking simulations showed that SDC-1-8 and HT interacted with dynamin-related protein 1 with higher affinity than mitofusin 1. Thus, it is summarized that SDC-1-8 and HT may have neuroprotective effects by balancing the abnormalities of mitochondrial fission and fusion, and SDC-1-8 and HT are the components providing the therapeutic basis of CF.
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Punmiya A, Prabhu A. Structural fingerprinting of pleiotropic flavonoids for multifaceted Alzheimer's disease. Neurochem Int 2023; 163:105486. [PMID: 36641110 DOI: 10.1016/j.neuint.2023.105486] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 12/13/2022] [Accepted: 01/09/2023] [Indexed: 01/13/2023]
Abstract
Alzheimer's disease has emerged as one of the most challenging neurodegenerative diseases associated with dementia, loss of cognitive functioning and memory impairment. Despite enormous efforts to identify disease modifying technologies, the repertoire of currently approved drugs consists of a few symptomatic candidates that are not capable of halting disease progression. Moreover, these single mechanism drugs target only a small part of the pathological cascade and do not address most of the etiological basis of the disease. Development of therapies that are able to simultaneously tackle all the multiple interlinked causative factors such as amyloid protein aggregation, tau hyperphosphorylation, cholinergic deficit, oxidative stress, metal dyshomeostasis and neuro-inflammation has become the focus of intensive research in this domain. Flavonoids are natural phytochemicals that have demonstrated immense potential as medicinal agents due to their multiple beneficial therapeutic effects. The polypharmacological profile of flavonoids aligns well with the multifactorial pathological landscape of Alzheimer's disease, making them promising candidates to overcome the challenges of this neurodegenerative disorder. This review presents a detailed overview of the pleiotropic biology of flavonoids favourable for Alzheimer therapeutics and the structural basis for these effects. Structure activity trends for several flavonoid classes such as flavones, flavonols, flavanones, isoflavones, flavanols and anthocyanins are comprehensively analyzed in detail and presented.
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Affiliation(s)
- Amisha Punmiya
- Department of Quality Assurance, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai, India
| | - Arati Prabhu
- Department of Quality Assurance, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai, India.
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Bari A, Shah SMM, Al-Joufi FA, Shah SWA, Shoaib M, Shah I, Zahoor M, Ahmed MN, Ghias M, Shah SMH, Khalil AAK. Effects of Artemisia macrocephala Jacquem on Memory Deficits and Brain Oxidative Stress in Streptozotocin-Induced Diabetic Mice. Molecules 2022; 27:molecules27082399. [PMID: 35458597 PMCID: PMC9028531 DOI: 10.3390/molecules27082399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/27/2022] [Accepted: 03/30/2022] [Indexed: 02/04/2023] Open
Abstract
Different species of Artemisia have been reported to have therapeutic potential in treating various health disorders, including diabetes and memory dysfunction. The present study was planned to evaluate the effects of Artemisia macrocephala Jacquem crude extract and its subfractions as antiamnesic agents in streptozotocin-induced (STZ) diabetic mice. The in vivo behavioral studies were performed using the Y Maze test and novel object recognition test (NORT) test at doses of 100 and 200 mg/kg of crude extract and 75 and 150 mg/kg of fractions. The in vitro and ex vivo anticholinesterase activities, along with biochemical parameters (superoxide dismutase, catalase, glutathione and lipid peroxidation) in the brain, were evaluated. Blood glucose levels were monitored with a glucometer; crude extract and fractions reduced the glucose level considerably, with some differences in the extent of their efficacies. The crude extract and fractions demonstrated significant inhibitory activity against cholinesterases (AChE and BuChE) in vitro. Crude, chloroform and ethyl acetate extract were found to be more potent than the other fractions, with IC50 of Crd-Am = 116.36 ± 1.48 and 240.52 ± 1.35 µg/mL, Chl-Am = 52.68 ± 1.09 and 57.45 ± 1.39 µg/mL and Et-Am = 75.19 ± 1.02 and 116.58 ± 1.09 µg/mL, respectively. Oxidative stress biomarkers like superoxide dismutase, catalase and glutathione levels were elevated, whereas MDA levels were reduced by crude extract and all fractions with little difference in their respective values. The Y-maze test and novel object recognition test demonstrated declines in memory impairment in groups (n = 6) treated with crude extract and fractions as compared to STZ diabetic (amnesic) group. The most active fraction, Chl-Am, was also subjected to isolation of bioactive compounds; three compounds were obtained in pure state and designated as AB-I, AB-II and AB-III. Overall, the results of the study showed that Artemisia macrocephala Jacquem enhanced the memory impairment associated with diabetes, elevated acetylcholine levels and ameliorated oxidative stress. Further studies are needed to explore the beneficial role of the secondary metabolites isolated in the present study as memory enhancers. Toxicological aspects of the extracts are also important and need to be evaluated in other animal models.
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Affiliation(s)
- Atiqul Bari
- Department of Pharmacy, University of Swabi, Swabi 23460, Khyber Pakhtunkhwa, Pakistan; (A.B.); (S.M.M.S.)
| | | | - Fakhria A. Al-Joufi
- Department of Pharmacology, College of Pharmacy, Jouf University, 72341 Aljouf, Saudi Arabia;
| | - Syed Wadood Ali Shah
- Department of Pharmacy, University of Malakand, Dir (Lower), Chakdara 18800, Khyber Pakhtunkhwa, Pakistan; (M.S.); (M.G.)
- Correspondence: (S.W.A.S.); (M.Z.)
| | - Mohammad Shoaib
- Department of Pharmacy, University of Malakand, Dir (Lower), Chakdara 18800, Khyber Pakhtunkhwa, Pakistan; (M.S.); (M.G.)
| | - Ismail Shah
- Department of Pharmacy, Abdul Wali Khan University, Mardan 23200, Khyber Pakhtunkhwa, Pakistan;
| | - Muhammad Zahoor
- Department of Biochemistry, University of Malakand, Dir (Lower), Chakdara 18800, Khyber Pakhtunkhwa, Pakistan
- Correspondence: (S.W.A.S.); (M.Z.)
| | - Muhammad Naeem Ahmed
- Department of Chemistry, The University of Azad Jammu & Kashmir, Muzaffarabad 13100, Azad Kashmir, Pakistan;
| | - Mehreen Ghias
- Department of Pharmacy, University of Malakand, Dir (Lower), Chakdara 18800, Khyber Pakhtunkhwa, Pakistan; (M.S.); (M.G.)
| | - Syed Muhammad Hassan Shah
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar 25000, Khyber Pakhtunkhwa, Pakistan;
| | - Atif Ali Khan Khalil
- Department of Biological Sciences, National University of Medical Sciences, Rawalpindi 46000, Punjab, Pakistan;
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Dietary consumption of desert olive tree pearls reduces brain Aβ content and improves learning and memory ability in aged mice. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Rajamma SS, Krishnaswami V, Prabu SL, Kandasamy R. Geophila repens phytosome-loaded intranasal gel with improved nasal permeation for the effective treatment of Alzheimer's disease. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2021.103087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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12
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Rezaee N, Fernando WB, Hone E, Sohrabi HR, Johnson SK, Gunzburg S, Martins RN. Potential of Sorghum Polyphenols to Prevent and Treat Alzheimer's Disease: A Review Article. Front Aging Neurosci 2021; 13:729949. [PMID: 34690742 PMCID: PMC8527926 DOI: 10.3389/fnagi.2021.729949] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 08/24/2021] [Indexed: 12/06/2022] Open
Abstract
Alzheimer's disease (AD) is characterized by the excessive deposition of extracellular amyloid-beta peptide (Aβ) and the build-up of intracellular neurofibrillary tangles containing hyperphosphorylated tau proteins. This leads to neuronal damage, cell death and consequently results in memory and learning impairments leading to dementia. Although the exact cause of AD is not yet clear, numerous studies indicate that oxidative stress, inflammation, and mitochondrial dysfunction significantly contribute to its onset and progression. There is no effective therapeutic approach to stop the progression of AD and its associated symptoms. Thus, early intervention, preferably, pre-clinically when the brain is not significantly affected, is a better option for effective treatment. Natural polyphenols (PP) target multiple AD-related pathways such as protecting the brain from Aβ and tau neurotoxicity, ameliorating oxidative damage and mitochondrial dysfunction. Among natural products, the cereal crop sorghum has some unique features. It is one of the major global grain crops but in the developed world, it is primarily used as feed for farm animals. A broad range of PP, including phenolic acids, flavonoids, and condensed tannins are present in sorghum grain including some classes such as proanthocyanidins that are rarely found in others plants. Pigmented varieties of sorghum have the highest polyphenolic content and antioxidant activity which potentially makes their consumption beneficial for human health through different pathways such as oxidative stress reduction and thus the prevention and treatment of neurodegenerative diseases. This review summarizes the potential of sorghum PP to beneficially affect the neuropathology of AD.
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Affiliation(s)
- Nasim Rezaee
- Centre of Excellence for Alzheimer’s Disease Research & Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - W.M.A.D. Binosha Fernando
- Centre of Excellence for Alzheimer’s Disease Research & Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Eugene Hone
- Centre of Excellence for Alzheimer’s Disease Research & Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Hamid R. Sohrabi
- Centre of Excellence for Alzheimer’s Disease Research & Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
- Department of Biomedical Sciences, Macquarie University, Sydney, NSW, Australia
- Centre for Healthy Ageing, Health Future Institute, Murdoch University, Murdoch, WA, Australia
| | - Stuart K. Johnson
- School of Molecular and Life Sciences, Faculty of Science and Engineering, Curtin University, Perth, WA, Australia
- Ingredients by Design Pty Ltd., Lesmurdie, WA, Australia
| | | | - Ralph N. Martins
- Centre of Excellence for Alzheimer’s Disease Research & Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
- Department of Biomedical Sciences, Macquarie University, Sydney, NSW, Australia
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Mountaki C, Dafnis I, Panagopoulou EA, Vasilakopoulou PB, Karvelas M, Chiou A, Karathanos VT, Chroni A. Mechanistic insight into the capacity of natural polar phenolic compounds to abolish Alzheimer's disease-associated pathogenic effects of apoE4 forms. Free Radic Biol Med 2021; 171:284-301. [PMID: 34019932 DOI: 10.1016/j.freeradbiomed.2021.05.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 05/08/2021] [Accepted: 05/11/2021] [Indexed: 01/01/2023]
Abstract
Polar phenols found in plant foods have been suggested to act protectively against pathogenic processes underlying Alzheimer's disease (AD), such as oxidative stress. The major risk factor for AD is apolipoprotein E4 (apoE4) and apoE4 forms can affect AD-related processes. It was shown previously that the hereditary apoE4 mutant apoE4[L28P], as well as the apoE4 fragment apoE4-165, induce neuronal oxidative stress. The effect of polar phenols on AD-related pathogenic functions of apoE4 forms is largely unexplored. The aim was to examine the effect of Corinthian currant polar phenolic extract and specific polar phenols resveratrol, quercetin, kaempferol and epigallocatechin gallate on AD-related functions of apoE4 forms. The polar phenolic extract and the individual compounds restored the viability of human neuroblastoma SK-N-SH cells in the presence of lipoprotein-associated apoE4[L28P] and prevented changes in cellular redox status. Furthermore, resveratrol, quercetin, kaempferol and epigallocatechin gallate prevented redox status changes induced by Aβ42 uptake in SK-N-SH cells treated with lipid-free apoE4[L28P] or apoE4-165. Investigation of the molecular mechanism of action of these polar phenols showed that resveratrol prevented cellular Aβ42 uptake via changes in cell membrane fluidity. Interestingly, kaempferol prevented cellular Aβ42 uptake by apoE4[L28P], but not by apoE4-165, due to a modulating effect on apoE4[L28P] secondary structure and stability. The action of quercetin and epigallocatechin gallate could be attributed to free radical-scavenging or other protective activity. Overall, it is shown for the first time that natural compounds could modify the structure of apoE4 forms and ameliorate AD-related pathogenic effects of apoE4 forms.
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Affiliation(s)
- Christina Mountaki
- Institute of Biosciences and Applications, National Center for Scientific Research "Demokritos", Agia Paraskevi, Athens, Greece
| | - Ioannis Dafnis
- Institute of Biosciences and Applications, National Center for Scientific Research "Demokritos", Agia Paraskevi, Athens, Greece
| | - Eirini A Panagopoulou
- Laboratory of Chemistry-Biochemistry-Physical Chemistry of Foods, Department of Dietetics and Nutrition, Harokopio University, Kallithea, Greece
| | - Paraskevi B Vasilakopoulou
- Laboratory of Chemistry-Biochemistry-Physical Chemistry of Foods, Department of Dietetics and Nutrition, Harokopio University, Kallithea, Greece
| | - Michalis Karvelas
- Research and Development Department, Agricultural Cooperatives' Union of Aeghion, Aeghion, Greece
| | - Antonia Chiou
- Laboratory of Chemistry-Biochemistry-Physical Chemistry of Foods, Department of Dietetics and Nutrition, Harokopio University, Kallithea, Greece
| | - Vaios T Karathanos
- Laboratory of Chemistry-Biochemistry-Physical Chemistry of Foods, Department of Dietetics and Nutrition, Harokopio University, Kallithea, Greece; Research and Development Department, Agricultural Cooperatives' Union of Aeghion, Aeghion, Greece
| | - Angeliki Chroni
- Institute of Biosciences and Applications, National Center for Scientific Research "Demokritos", Agia Paraskevi, Athens, Greece.
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15
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Biomolecular Evaluation of Lavandula stoechas L. for Nootropic Activity. PLANTS 2021; 10:plants10061259. [PMID: 34205806 PMCID: PMC8234844 DOI: 10.3390/plants10061259] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/31/2021] [Accepted: 06/16/2021] [Indexed: 11/25/2022]
Abstract
Lavandula Stoechas L. is widely known for its pharmacological properties. This study was performed to identify its biomolecules, which are responsible for enhancement of memory. L. stoechas aqueous extract was first purified by liquid column chromatography. The purified fractions were analyzed for in vitro anti-cholinesterase activity. The fraction that produced the best anti-cholinesterase activity was named an active fraction of L. stoechas (AfL.s). This was then subjected to GC–MS for identifications of biomolecules present in it. GC–MS indicated the presence of phenethylamine and α-tocopherol in AfL.s. Different doses of AfL.s were orally administered (for seven days) to scopolamine-induced hyper-amnesic albino mice and then behavioral studies were performed on mice for two days. After that, animals were sacrificed and their brains were isolated to perform the biochemical assay. Results of behavioral studies indicated that AfL.s improved the inflexion ratio in mice, which indicated improvement in retention behavior. Similarly, AfL.s significantly (p < 0.001) reduced acetylcholinesterase and malondialdehyde contents of mice brain, but on the other hand, it improved the level of choline acetyltransferase, catalase, superoxide dismutase, and glutathione. It was found that that high doses of AfL.s (≥400 mg/Kg/p.o.) produced hyper-activity, hyperstimulation, ataxia, seizures, and ultimate death in mice. Its LD50 was calculated as 325 mg/Kg/p.o. The study concludes that α-tocopherol and phenethylamine (a primary amine) present in L. stoechas enhance memory in animal models.
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Zhu RZ, Chen MQ, Zhang ZW, Wu TY, Zhao WH. Dietary fatty acids and risk for Alzheimer's disease, dementia, and mild cognitive impairment: A prospective cohort meta-analysis. Nutrition 2021; 90:111355. [PMID: 34218119 DOI: 10.1016/j.nut.2021.111355] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 05/01/2021] [Accepted: 05/16/2021] [Indexed: 12/01/2022]
Abstract
The association between dietary fatty acid intake and Alzheimer's disease (AD), dementia, and mild cognitive impairment (MCI) risk is inconsistent. This meta-analysis examined the effect of dietary fatty acid intake in prospective cohort studies including patients with AD, dementia, and MCI. PubMed, China Biology Medicine (CBM), China National Knowledge Infrastructure (CNKI), Wanfang Data, and VIP Database were systematically searched through September 2020. The random-effects model was used to combine the highest and lowest categories of multivariable adjusted relative risk (RR). Prospective cohort studies that included associations between dietary fatty acid intake and the risk for AD, dementia, or MCI were included. Fourteen studies were included, comprising 54 177 participants: 1696 patients with AD, 1118 patients with dementia, and 2889 with MCI. The pooled RR showed a significant association only between ω-3 polyunsaturated fatty acid (PUFA) intake and MCI risk (RR, 0.86; 95% CI, 0.75-0.98), with no heterogeneity between studies (I2 = 0%). The intake of total fatty acids, saturated fatty acids (SFAs), cholesterol, monounsaturated fatty acids (MUFAs), PUFAs, ω-3 PUFAs, ω-6 PUFAs, docosahexaenoic acids (DHAs), and eicosapentaenoic acids (EPAs) was not significantly associated with AD risk. The intake of total fatty acids, SFAs, MUFAs, PUFAs, and ω-3 PUFAs was not significantly associated with dementia risk. This meta-analysis provided evidence that ω-3 PUFA intake may be negatively associated with MCI risk.
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Affiliation(s)
- Run-Ze Zhu
- School of Public Health of Bengbu Medical College, Bengbu, China
| | - Mei-Qing Chen
- School of Public Health of Bengbu Medical College, Bengbu, China
| | - Zhi-Wen Zhang
- School of Public Health of Bengbu Medical College, Bengbu, China
| | - Tian-Yu Wu
- School of Public Health of Bengbu Medical College, Bengbu, China
| | - Wen-Hong Zhao
- School of Public Health of Bengbu Medical College, Bengbu, China.
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Shen H, Zheng Y, Chen R, Huang X, Shi G. Neuroprotective effects of quercetin 3-O-sophoroside from Hibiscus rosa-sinensis Linn. on scopolamine-induced amnesia in mice. J Funct Foods 2021. [DOI: 10.1016/j.jff.2020.104291] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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18
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Resveratrol confers neuroprotection against high-fat diet in a mouse model of Alzheimer's disease via modulation of proteolytic mechanisms. J Nutr Biochem 2020; 89:108569. [PMID: 33321185 DOI: 10.1016/j.jnutbio.2020.108569] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 08/15/2020] [Accepted: 11/24/2020] [Indexed: 12/23/2022]
Abstract
Cumulative evidence indicates that excessive consumption of calories from saturated fat contributes to the development of Alzheimer's disease (AD). Here, we assess the triggering and progression of AD pathology induced by a high-fat diet (HFD), and the effects of resveratrol, a polyphenol found in common dietary sources with pleiotropic neuroprotective activities. Over 16 weeks, male wild type (WT) and AD transgenic 5XFAD mice were fed a control diet, HFD (60% kcal from fat), or HFD supplemented with 0.1% resveratrol. Resveratrol protected against HFD-induced memory loss in WT mice and prevented memory loss in 5XFAD mice. Resveratrol also reduced the amyloid burden aggravated by HFD in 5XFAD, and protected against HFD-induced tau pathology in both WT and 5XFAD strains. At the mechanistic level, resveratrol inhibited the HFD-increased amyloidogenic processing of the amyloid precursor protein in both strains; it also restored abnormal high levels in the proteolytic activity of the ubiquitin-proteasome system induced by HFD, suggesting the presence of a compensatory mechanism to counteract the accumulation of aberrant proteins. Thus, our data suggest that resveratrol can correct the harmful effects of HFD in the brain and may be a potential therapeutic agent against obesity-related disorders and AD pathology.
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Zhang D, Wang X, Li R, Wang L, Zhou Z, Fu Q, Cao Y, Fang M. Extract of the Aerial Part of Polygala tenuifolia Attenuates d-Galactose/NaNO2-induced Learning and Memory Impairment in Mice. PLANTA MEDICA 2020; 86:1389-1399. [PMID: 32797467 DOI: 10.1055/a-1212-3212] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Alzheimer's disease, one of the most common types of age-related dementia, is characterized by memory deterioration and behavior disorder. The aboveground part of Polygala tenuifolia is a traditional Chinese medicine used for the treatment of amnesia. This study was conducted to investigate the ameliorating effect of the aerial part of P. tenuifolia on d-galactose/NaNO2-induced learning and memory impairment in mice. d-galactose (120 mg/kg) and NaNO2 (90 mg/kg) were injected intraperitoneally for 60 days to induce learning and memory impairment in mice. The aerial part of P. tenuifolia (25, 50, and 100 mg/kg) and piracetam (200 mg/kg) were simultaneously administered orally on days 15 - 60. Results of this study showed that aerial part of P. tenuifolia significantly decreased the latency time and increased the number of platform crossings in the Morris water maze compared with the Model group. Moreover, the aerial part of P. tenuifolia significantly increased the latency time and decreased the error frequency in the step-down and step-through tests compared with the Model group. Meanwhile, the aerial part of P. tenuifolia was able to regulate the cholinergic system by increasing the levels of ACh and ChAT and decreasing the level of AChe. The aerial part of P. tenuifolia also significantly attenuated the levels of interleukin-1 beta and malonaldehyde and enhanced the interleukin-10 and glutathione levels and superoxide dismutase activity. Furthermore, treatment with aerial part of P. tenuifolia increased the protein and mRNA expression of brain-derived neurotrophic factor and tropomyosin receptor kinase B in the hippocampus. These results suggest that the aerial part of P. tenuifolia can ameliorate learning and memory impairments by modulating cholinergic activity, inhibiting neuroinflammation and oxidative stress, and regulating the brain-derived neurotrophic factor and tropomyosin receptor kinase B signaling pathway.
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Affiliation(s)
- Dian Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University, Xi'an, China
| | - Xiao Wang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University, Xi'an, China
| | - Rong Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University, Xi'an, China
| | - Lin Wang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University, Xi'an, China
| | - Zihao Zhou
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University, Xi'an, China
| | - Qi Fu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University, Xi'an, China
| | - Yanjun Cao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University, Xi'an, China
| | - Minfeng Fang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University, Xi'an, China
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20
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Sakalauskas A, Ziaunys M, Smirnovas V. Gallic acid oxidation products alter the formation pathway of insulin amyloid fibrils. Sci Rep 2020; 10:14466. [PMID: 32879381 PMCID: PMC7468289 DOI: 10.1038/s41598-020-70982-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 08/05/2020] [Indexed: 12/25/2022] Open
Abstract
Amyloidogenic protein assembly into insoluble fibrillar aggregates is linked with several neurodegenerative disorders, such as Alzheimer’s or Parkinson’s disease, affecting millions of people worldwide. The search for a potential anti-amyloid drug has led to the discovery of hundreds of compounds, none of which have passed all clinical trials. Gallic acid has been shown to both modulate factors leading to the onset of neurodegenerative disorders, as well as directly inhibit amyloid formation. However, the conditions under which this effect is seen could lead to oxidation of this polyphenol, likely changing its properties. Here we examine the effect of gallic acid and its oxidised form on the aggregation of a model amyloidogenic protein–insulin at low pH conditions. We show a vastly higher inhibitory potential of the oxidised form, as well as an alteration in the aggregation pathway, leading to the formation of a specific fibril conformation.
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Affiliation(s)
- Andrius Sakalauskas
- Life Sciences Center, Institute of Biotechnology, Vilnius University, Sauletekio al. 7, 10257, Vilnius, Lithuania
| | - Mantas Ziaunys
- Life Sciences Center, Institute of Biotechnology, Vilnius University, Sauletekio al. 7, 10257, Vilnius, Lithuania
| | - Vytautas Smirnovas
- Life Sciences Center, Institute of Biotechnology, Vilnius University, Sauletekio al. 7, 10257, Vilnius, Lithuania.
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21
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Tian X, Zhang S, Zhang Q, Kang L, Ma C, Feng L, Li S, Li J, Yang L, Liu J, Qi Z, Shen Y. Resveratrol inhibits tumor progression by down-regulation of NLRP3 in renal cell carcinoma. J Nutr Biochem 2020; 85:108489. [PMID: 32827663 DOI: 10.1016/j.jnutbio.2020.108489] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 06/04/2020] [Accepted: 08/05/2020] [Indexed: 01/16/2023]
Abstract
Renal cell carcinoma (RCC) is one of the most common urologic malignant tumors. Current chemotherapy is not effective in RCC and results in some side effects. Resveratrol (RSV) has been reported to exert antitumor effects in some cancer cells; however the mechanism is not fully understood. Herein, we aimed to determine the anticancer effect of RSV on RCC and further explore the underlying molecular mechanism in this process. We found that RSV inhibited tumor cells proliferation, migration and invasion and increased apoptosis of RCC either in vivo or in vitro. RSV significantly down-regulated expressions of NLRP3 and its downstream genes. Inhibition of NLRP3 by NLRP3 small interfering RNA mimicked the effects of RSV on RCC cells. These results suggested that RSV could exert antitumor effect by depressing activity of NLRP3, and NLRP3 would be a promising clinical therapeutic strategy for RCC.
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Affiliation(s)
- Xixi Tian
- Department of Microbiology, School of Laboratory Medicine, Tianjin Medical University, Tianjin 300203, China
| | - Shengzheng Zhang
- Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin 300071, China
| | - Qiong Zhang
- Department of Microbiology, School of Laboratory Medicine, Tianjin Medical University, Tianjin 300203, China
| | - Licheng Kang
- Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin 300071, China
| | - Changzhen Ma
- Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin 300071, China
| | - Lifeng Feng
- Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin 300071, China
| | - Shengyu Li
- Department of Microbiology, School of Laboratory Medicine, Tianjin Medical University, Tianjin 300203, China
| | - Jing Li
- Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin 300071, China
| | - Liang Yang
- Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin 300071, China
| | - Jie Liu
- Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin 300071, China
| | - Zhi Qi
- Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin 300071, China; National Clinical Research Center of Kidney Diseases, Beijing, 100853, China.
| | - Yanna Shen
- Department of Microbiology, School of Laboratory Medicine, Tianjin Medical University, Tianjin 300203, China.
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22
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Advantages and Pitfalls in Fluid Biomarkers for Diagnosis of Alzheimer's Disease. J Pers Med 2020; 10:jpm10030063. [PMID: 32708853 PMCID: PMC7563364 DOI: 10.3390/jpm10030063] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 07/04/2020] [Accepted: 07/06/2020] [Indexed: 01/08/2023] Open
Abstract
Alzheimer’s disease (AD) is a commonly occurring neurodegenerative disease in the advanced-age population, with a doubling of prevalence for each 5 years of age above 60 years. In the past two decades, there has been a sustained effort to find suitable biomarkers that may not only aide with the diagnosis of AD early in the disease process but also predict the onset of the disease in asymptomatic individuals. Current diagnostic evidence is supportive of some biomarker candidates isolated from cerebrospinal fluid (CSF), including amyloid beta peptide (Aβ), total tau (t-tau), and phosphorylated tau (p-tau) as being involved in the pathophysiology of AD. However, there are a few biomarkers that have been shown to be helpful, such as proteomic, inflammatory, oral, ocular and olfactory in the early detection of AD, especially in the individuals with mild cognitive impairment (MCI). To date, biomarkers are collected through invasive techniques, especially CSF from lumbar puncture; however, non-invasive (radio imaging) methods are used in practice to diagnose AD. In order to reduce invasive testing on the patients, present literature has highlighted the potential importance of biomarkers in blood to assist with diagnosing AD.
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Cui X, Lin Q, Liang Y. Plant-Derived Antioxidants Protect the Nervous System From Aging by Inhibiting Oxidative Stress. Front Aging Neurosci 2020; 12:209. [PMID: 32760268 PMCID: PMC7372124 DOI: 10.3389/fnagi.2020.00209] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 06/15/2020] [Indexed: 01/04/2023] Open
Abstract
Alzheimer's disease (AD) has become a major disease contributing to human death and is thought to be closely related to the aging process. The rich antioxidant substances in plants have been shown to play a role in delaying aging, and in recent years, significant research has focused on also examining their potential role in AD onset and progression. Many plant-derived antioxidant research studies have provided insights for the future treatment and prevention of AD. This article reviews various types of plant-derived antioxidants with anti-aging effects on neurons. Also it distinguishes the different types of active substances that exhibit different degrees of protection for the nervous system and summarizes the mechanism thereof. Plant-derived antioxidants with neuroprotective functions can protect various components of the nervous system in a variety of ways and can have a positive impact on interventions to prevent and alleviate AD. Furthermore, when considering neuroprotective agents, glial cells also contribute to the defense of the nervous system and should not be ignored.
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Affiliation(s)
- Xiaoji Cui
- Molecular Nutrition Branch, National Engineering Laboratory for Rice and By-product Deep Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, China
| | - Qinlu Lin
- Molecular Nutrition Branch, National Engineering Laboratory for Rice and By-product Deep Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, China
| | - Ying Liang
- Molecular Nutrition Branch, National Engineering Laboratory for Rice and By-product Deep Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, China
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Azib L, Debbache-Benaida N, Da Costa G, Atmani-Kilani D, Saidene N, Bouguellid G, Ourabah A, Krisa S, Richard T, Atmani D. Neuroprotective effects of Fraxinus angustifolia Vahl. bark extract against Alzheimer's disease. J Chem Neuroanat 2020; 109:101848. [PMID: 32645433 DOI: 10.1016/j.jchemneu.2020.101848] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 05/26/2020] [Accepted: 07/03/2020] [Indexed: 01/18/2023]
Abstract
Alzheimer disease's (AD) is a neurodegenerative disease induced by amyloid-β (Aβ) aggregation and accumulation of neurotoxic metals in the brain. Fraxinus angustifolia Vahl. (Oleaceae) is a Mediterranean plant traditionally used to treat several human problems as nervous system problems. This study aimed to evaluate the neuroprotective effects of F. angustifolia Vahl. bark extract (FAB) in vitro and in vivo against Aβ-aggregation and aluminium induced-neurotoxicity in mice. FAB was characterized by colorimetric methods and its individual compounds were identified and quantified by LC-MS. First, the neuroprotective effect of FAB was evaluated against Aβ25-35-aggregation where it was directly incubated with Aβ25-35 and the kinetic of aggregation was measured by spectrophotometer at 200 nm. Then, the extract was tested against Aβ25-35-induced cytotoxicity on PC12 cells and the cells viability was determined by MTT test. On the other hand, FAB (0.01-0.5 mg/mL) was tested against aluminium-activated lipid peroxidation in mice synaptosomal membranes, and in vivo against aluminium-caused neurotoxicity in male N.M.R.I. (Naval Medical Research Institute) mice; this test consisted of daily co-administration of the extract with Al for 60 days. At the end of the treatment, behavioral and memory tests (locomotor activity, black and white and Morris water maze tests) and histological analysis were realized. The identification and quantification of FAB phenolics revealed the presence of different phenolic classes with high concentration of phenylethanoids and hydroxycoumarins. FAB showed a high Aβ25-35 anti-aggregative effect and a dose dependent protective effect on PC12 cells. The extract also demonstrated a significant inhibition of lipid peroxidation and was found to prevent the Al harmful effects where it significantly increased the locomotor activity, decreased the anxiety, improved memory and reduced histological alterations. In conclusion, FAB is rich of bioactive compounds that gave it the ability to inhibit Aβ-aggregation and Al-caused neurotoxicity in mice.
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Affiliation(s)
- Lila Azib
- Laboratoire de Biochimie Appliquée, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000, Bejaia, Algeria.
| | - Nadjet Debbache-Benaida
- Laboratoire de Biochimie Appliquée, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000, Bejaia, Algeria
| | - Gregory Da Costa
- Univ. Bordeaux, ISVV, EA 4577, Unité de Recherche Oenologie, F-33882, Villenave d'Ornon, France; INRA, USC 1366, ISVV, Unité de Recherche Oenologie, Villenave d'Ornon, France
| | - Dina Atmani-Kilani
- Laboratoire de Biochimie Appliquée, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000, Bejaia, Algeria
| | - Naima Saidene
- Laboratoire de Biochimie Appliquée, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000, Bejaia, Algeria
| | - Ghania Bouguellid
- Laboratoire de Biochimie Appliquée, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000, Bejaia, Algeria
| | - Asma Ourabah
- Laboratoire de Biochimie Appliquée, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000, Bejaia, Algeria
| | - Stephanie Krisa
- Univ. Bordeaux, ISVV, EA 4577, Unité de Recherche Oenologie, F-33882, Villenave d'Ornon, France; INRA, USC 1366, ISVV, Unité de Recherche Oenologie, Villenave d'Ornon, France
| | - Tristan Richard
- Univ. Bordeaux, ISVV, EA 4577, Unité de Recherche Oenologie, F-33882, Villenave d'Ornon, France; INRA, USC 1366, ISVV, Unité de Recherche Oenologie, Villenave d'Ornon, France
| | - Djebbar Atmani
- Laboratoire de Biochimie Appliquée, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000, Bejaia, Algeria
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Faramarzian M, Bahramikia S. The effects of Quercus brantiiacorn extract on hen egg‐white lysozyme amyloid formation and disassemble amyloid aggregates. J FOOD PROCESS PRES 2020. [DOI: 10.1111/jfpp.14499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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26
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Sut S, Dall'Acqua S, Bene K, di Marco SB, Sinan KI, Mahomoodally MF, Picot-Allain MCN, Zengin G. Ricinodendronheudelotii(Baill.) Heckel stem barks and seed extracts, a native food plant from Africa: Characterization by NMR and HPLC-DAD-ESI-MSn. Food Res Int 2020; 129:108877. [DOI: 10.1016/j.foodres.2019.108877] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 11/27/2019] [Accepted: 11/30/2019] [Indexed: 11/16/2022]
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27
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Tomaselli S, La Vitola P, Pagano K, Brandi E, Santamaria G, Galante D, D’Arrigo C, Moni L, Lambruschini C, Banfi L, Lucchetti J, Fracasso C, Molinari H, Forloni G, Balducci C, Ragona L. Biophysical and in Vivo Studies Identify a New Natural-Based Polyphenol, Counteracting Aβ Oligomerization in Vitro and Aβ Oligomer-Mediated Memory Impairment and Neuroinflammation in an Acute Mouse Model of Alzheimer's Disease. ACS Chem Neurosci 2019; 10:4462-4475. [PMID: 31603646 DOI: 10.1021/acschemneuro.9b00241] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
In this study natural-based complex polyphenols, obtained through a smart synthetic approach, have been evaluated for their ability to inhibit the formation of Aβ42 oligomers, the most toxic species causing synaptic dysfunction, neuroinflammation, and neuronal death leading to the onset and progression of Alzheimer's disease. In vitro neurotoxicity tests on primary hippocampal neurons have been employed to select nontoxic candidates. Solution NMR and molecular docking studies have been performed to clarify the interaction mechanism of Aβ42 with the synthesized polyphenol derivatives, and highlight the sterical and chemical requirements important for their antiaggregating activity. NMR results indicated that the selected polyphenolic compounds target Aβ42 oligomeric species. Combined NMR and docking studies indicated that the Aβ42 central hydrophobic core, namely, the 17-31 region, is the main interaction site. The length of the peptidomimetic scaffold and the presence of a guaiacol moiety were identified as important requirements for the antiaggregating activity. In vivo experiments on an Aβ42 oligomer-induced acute mouse model highlighted that the most promising polyphenolic derivative (PP04) inhibits detrimental effects of Aβ42 oligomers on memory and glial cell activation. NMR kinetic studies showed that PP04 is endowed with the chemical features of true inhibitors, strongly affecting both the Aβ42 nucleation and growth rates, thus representing a promising candidate to be further developed into an effective drug against neurodegenerative diseases of the amyloid type.
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Affiliation(s)
- Simona Tomaselli
- Istituto per lo Studio delle Macromolecole (ISMAC), CNR, Milan 20133, Italy
| | - Pietro La Vitola
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan 20156, Italy
| | - Katiuscia Pagano
- Istituto per lo Studio delle Macromolecole (ISMAC), CNR, Milan 20133, Italy
| | - Edoardo Brandi
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan 20156, Italy
| | - Giulia Santamaria
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan 20156, Italy
| | - Denise Galante
- Istituto per lo Studio delle Macromolecole (ISMAC), CNR, Genoa 16149, Italy
| | - Cristina D’Arrigo
- Istituto per lo Studio delle Macromolecole (ISMAC), CNR, Genoa 16149, Italy
| | - Lisa Moni
- Department of Chemistry and Industrial Chemistry, Università di Genova, Genova 16146, Italy
| | - Chiara Lambruschini
- Department of Chemistry and Industrial Chemistry, Università di Genova, Genova 16146, Italy
| | - Luca Banfi
- Department of Chemistry and Industrial Chemistry, Università di Genova, Genova 16146, Italy
| | - Jacopo Lucchetti
- Department of Molecular Biochemistry and Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan 20156, Italy
| | - Claudia Fracasso
- Department of Molecular Biochemistry and Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan 20156, Italy
| | - Henriette Molinari
- Istituto per lo Studio delle Macromolecole (ISMAC), CNR, Milan 20133, Italy
| | - Gianluigi Forloni
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan 20156, Italy
| | - Claudia Balducci
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan 20156, Italy
| | - Laura Ragona
- Istituto per lo Studio delle Macromolecole (ISMAC), CNR, Milan 20133, Italy
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The Mediterranean Diet, a Rich Source of Angiopreventive Compounds in Cancer. Nutrients 2019; 11:nu11092036. [PMID: 31480406 PMCID: PMC6769787 DOI: 10.3390/nu11092036] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 08/19/2019] [Accepted: 08/25/2019] [Indexed: 12/12/2022] Open
Abstract
Diet-based chemoprevention of cancer has emerged as an interesting approach to evade the disease or even target its early phases, reducing its incidence or slowing down tumor progression. In its basis in the essential role of angiogenesis for tumor growth and metastasis, angioprevention proposes the use of inhibitors of angiogenesis in cancer prevention. The anti-angiogenic potential exhibited by many natural compounds contained in many Mediterranean diet constituents makes this dietary pattern especially interesting as a source of chemopreventive agents, defined within the angioprevention strategy. In this review, we focus on natural bioactive compounds derived from the main foods included in the Mediterranean diet that display anti-angiogenic activity, as well as their possible use as angiopreventive agents.
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Mediterranean and MIND Diets Containing Olive Biophenols Reduces the Prevalence of Alzheimer's Disease. Int J Mol Sci 2019; 20:ijms20112797. [PMID: 31181669 PMCID: PMC6600544 DOI: 10.3390/ijms20112797] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 06/05/2019] [Accepted: 06/06/2019] [Indexed: 02/07/2023] Open
Abstract
The risk of Alzheimer’s disease (AD) increases with nonmodifiable conditions including age and lack of effective efficacious pharmacotherapy. During the past decades, the non-pharmacotherapy mode of treatment of dietary modification received extensive attention in AD research. In order to reduce the AD pathology and cognitive decline, various dietary patterns have been attempted including caloric restriction (CR), dietary approaches to stop hypertension (DASH), ketogenic diets (KD), Mediterranean diet (MedDi) and Mediterranean-DASH diet Intervention for Neurological Delay (MIND) diet. Higher adherence to the MedDi diet was associated with decreases in cardiovascular and neurological disorders including AD and related cognitive decline. However, another emerging healthy dietary pattern MIND diet has also been associated with slower rates of cognitive decline and significant reduction of AD rate. Olive serves as one of the building block components of MedDi and MIND diets and the exerted potential health beneficial might be suggested due to the presence of its bioactive constituents such as oleic acids and phenolic compounds (biophenols). A few trials using medical food showed an optimal result in presymptomatic or early stages of AD. The review supports the notion that MedDi and MIND diets display potential for maintaining the cognitive function as nonpharmacological agents against AD pathology and proposed preventative mechanism through the presence of olive biophenols and presents the gaps along with the future directions.
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Li J, Han Y, Li M, Nie C. Curcumin Promotes Proliferation of Adult Neural Stem Cells and the Birth of Neurons in Alzheimer's Disease Mice via Notch Signaling Pathway. Cell Reprogram 2019; 21:152-161. [PMID: 31145652 DOI: 10.1089/cell.2018.0027] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Jun Li
- Department of Neurology, Qinyang People's Hospital, Qinyang, China
| | - Yazhou Han
- Department of Neurology, Qinyang People's Hospital, Qinyang, China
| | - Mingduo Li
- Department of Obstetrics and Gynecology, Reproductive Medical Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Caixia Nie
- Department of Obstetrics and Gynecology, Reproductive Medical Center, Daping Hospital & Institute of Surgery Research, Army Medical University (Third Military Medical University), Chongqing, China
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de Pablos RM, Espinosa-Oliva AM, Hornedo-Ortega R, Cano M, Arguelles S. Hydroxytyrosol protects from aging process via AMPK and autophagy; a review of its effects on cancer, metabolic syndrome, osteoporosis, immune-mediated and neurodegenerative diseases. Pharmacol Res 2019; 143:58-72. [DOI: 10.1016/j.phrs.2019.03.005] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 03/04/2019] [Accepted: 03/06/2019] [Indexed: 12/31/2022]
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Molecular mechanisms underlying protective role of quercetin in attenuating Alzheimer's disease. Life Sci 2019; 224:109-119. [PMID: 30914316 DOI: 10.1016/j.lfs.2019.03.055] [Citation(s) in RCA: 167] [Impact Index Per Article: 33.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 03/22/2019] [Accepted: 03/22/2019] [Indexed: 12/17/2022]
Abstract
Quercetin belongs to the flavonoids family, which is present in most of the plants including fruits, vegetables, green tea and even in red wine having antioxidant activities. It is available as a food supplement in the market and has physiological health effects. Quercetin has anti-inflammatory, anticancer and anti-prostate activities along with its beneficial effects on high cholesterol, kidney transplantation, asthma, diabetes, viral infections, pulmonary, schizophrenia and cardiovascular diseases. Quercetin possesses scavenging potential of hydroxyl radical (OH-), hydrogen peroxide (H2O2), and superoxide anion (O2-). These reactive oxygen species (ROS) hampers lipid, protein, amino acids and deoxyribonucleic acid (DNA) processing leading to epigenetic alterations. Quercetin has the ability to combat these harmful effects. ROS plays a vital role in the progression of Alzheimer's disease (AD), and we propose that quercetin would be the best choice to overcome cellular and molecular signals in regulating normal physiological functions. However, data are not well documented regarding exact cellular mechanisms of quercetin. The neuroprotective effects of quercetin are mainly due to potential up- and/or down-regulation of cytokines via nuclear factor (erythroid-derived 2)-like 2 (Nrf2), Paraoxonase-2, c-Jun N-terminal kinase (JNK), Protein kinase C, Mitogen-activated protein kinase (MAPK) signalling cascades, and PI3K/Akt pathways. Therefore, the aim of the present review was to elaborate on the cellular and molecular mechanisms of the quercetin involved in the protection against AD.
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Sereia AL, de Oliveira MT, Baranoski A, Marques LLM, Ribeiro FM, Isolani RG, de Medeiros DC, Chierrito D, Lazarin-Bidóia D, Zielinski AAF, Novello CR, Nakamura CV, Mantovani MS, de Mello JCP. In vitro evaluation of the protective effects of plant extracts against amyloid-beta peptide-induced toxicity in human neuroblastoma SH-SY5Y cells. PLoS One 2019; 14:e0212089. [PMID: 30763379 PMCID: PMC6375598 DOI: 10.1371/journal.pone.0212089] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Accepted: 01/28/2019] [Indexed: 02/06/2023] Open
Abstract
Alzheimer's disease (AD) is the most common form of dementia and has no cure. Therapeutic strategies focusing on the reduction of oxidative stress, modulation of amyloid-beta (Aβ) toxicity and inhibition of tau protein hyperphosphorylation are warranted to avoid the development and progression of AD. The aim of this study was to screen the crude extracts (CEs) and ethyl-acetate fractions (EAFs) of Guazuma ulmifolia, Limonium brasiliense, Paullinia cupana, Poincianella pluviosa, Stryphnodendron adstringens and Trichilia catigua using preliminary in vitro bioassays (acetylcholinesterase inhibition, antioxidant activity and total polyphenol content) to select extracts/fractions and assess their protective effects against Aβ25-35 toxicity in SH-SY5Y cells. The effect of the EAF of S. adstringens on mitochondrial membrane potential, lipid peroxidation, superoxide production and mRNA expression of 10 genes related to AD was also evaluated and the electropherogram fingerprints of EAFs were established by capillary electrophoresis. Chemometric tools were used to correlate the in vitro activities of the samples with their potential to be evaluated against AD and to divide extracts/fractions into four clusters. Pretreatment with the EAFs grouped in cluster 1 (S. adstringens, P. pluviosa and L. brasiliense) protected SH-SY5Y cells from Aβ25-35-induced toxicity. The EAF of S. adstringens at 15.62 μg/mL was able completely to inhibit the mitochondrial depolarization (69%), superoxide production (49%) and Aβ25-35-induced lipid peroxidation (35%). With respect to mRNA expression, the EAF of S. adstringens also prevented the MAPT mRNA overexpression (expression ratio of 2.387x) induced by Aβ25-35, which may be related to tau protein hyperphosphorylation. This is the first time that the neuroprotective effects of these fractions have been demonstrated and that the electropherogram fingerprints for the EAFs of G. ulmifolia, L. brasiliense, P. cupana, P. pluviosa and S. adstringens have been established. The study expands knowledge of the in vitro protective effects and quality control of the evaluated fractions.
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Affiliation(s)
- Ana Luiza Sereia
- Programa de Pós-Graduação em Ciências Farmacêuticas, Department of Pharmacy, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Marcelo Tempesta de Oliveira
- Programa de Pós-Graduação em Ciências Farmacêuticas, Department of Pharmacy, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Adrivanio Baranoski
- Programa de Pós-Graduação em Genética e Biologia Molecular, Department of General Biology, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - Leila Larisa Medeiros Marques
- Programa de Pós-Graduação em Ciências Farmacêuticas, Department of Pharmacy, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Fabianne Martins Ribeiro
- Programa de Pós-Graduação em Ciências Farmacêuticas, Department of Pharmacy, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Raquel Garcia Isolani
- Programa de Pós-Graduação em Ciências Farmacêuticas, Department of Pharmacy, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Daniela Cristina de Medeiros
- Programa de Pós-Graduação em Ciências Farmacêuticas, Department of Pharmacy, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Danielly Chierrito
- Programa de Pós-Graduação em Ciências Farmacêuticas, Department of Pharmacy, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Danielle Lazarin-Bidóia
- Programa de Pós-Graduação em Ciências Farmacêuticas, Department of Pharmacy, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Acácio Antonio Ferreira Zielinski
- Department of Chemical Engineering and Food Engineering, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Cláudio Roberto Novello
- Academic Department of Chemistry and Biology, Universidade Tecnológica Federal do Paraná, Francisco Beltrão, Paraná, Brazil
| | - Celso Vataru Nakamura
- Programa de Pós-Graduação em Ciências Farmacêuticas, Department of Pharmacy, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Mário Sérgio Mantovani
- Programa de Pós-Graduação em Genética e Biologia Molecular, Department of General Biology, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - João Carlos Palazzo de Mello
- Programa de Pós-Graduação em Ciências Farmacêuticas, Department of Pharmacy, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
- * E-mail:
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Mattioli R, Francioso A, d'Erme M, Trovato M, Mancini P, Piacentini L, Casale AM, Wessjohann L, Gazzino R, Costantino P, Mosca L. Anti-Inflammatory Activity of A Polyphenolic Extract from Arabidopsis thaliana in In Vitro and In Vivo Models of Alzheimer's Disease. Int J Mol Sci 2019; 20:ijms20030708. [PMID: 30736391 PMCID: PMC6387160 DOI: 10.3390/ijms20030708] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 02/01/2019] [Accepted: 02/03/2019] [Indexed: 12/13/2022] Open
Abstract
Alzheimer’s disease (AD) is the most common neurodegenerative disorder and the primary form of dementia in the elderly. One of the main features of AD is the increase in amyloid-beta (Aβ) peptide production and aggregation, leading to oxidative stress, neuroinflammation and neurodegeneration. Polyphenols are well known for their antioxidant, anti-inflammatory and neuroprotective effects and have been proposed as possible therapeutic agents against AD. Here, we investigated the effects of a polyphenolic extract of Arabidopsis thaliana (a plant belonging to the Brassicaceae family) on inflammatory response induced by Aβ. BV2 murine microglia cells treated with both Aβ25–35 peptide and extract showed a lower pro-inflammatory (IL-6, IL-1β, TNF-α) and a higher anti-inflammatory (IL-4, IL-10, IL-13) cytokine production compared to cells treated with Aβ only. The activation of the Nrf2-antioxidant response element signaling pathway in treated cells resulted in the upregulation of heme oxygenase-1 mRNA and in an increase of NAD(P)H:quinone oxidoreductase 1 activity. To establish whether the extract is also effective against Aβ-induced neurotoxicity in vivo, we evaluated its effect on the impaired climbing ability of AD Drosophila flies expressing human Aβ1–42. Arabidopsis extract significantly restored the locomotor activity of these flies, thus confirming its neuroprotective effects also in vivo. These results point to a protective effect of the Arabidopsis extract in AD, and prompt its use as a model in studying the impact of complex mixtures derived from plant-based food on neurodegenerative diseases.
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Affiliation(s)
- Roberto Mattioli
- Department of Biology and Biotechnology "Charles Darwin", Sapienza University of Rome, 00185 Roma, Italy.
| | - Antonio Francioso
- Department of Biochemical Sciences, Sapienza University of Rome, 00185 Roma, Italy.
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany.
| | - Maria d'Erme
- Department of Biochemical Sciences, Sapienza University of Rome, 00185 Roma, Italy.
| | - Maurizio Trovato
- Department of Biology and Biotechnology "Charles Darwin", Sapienza University of Rome, 00185 Roma, Italy.
| | - Patrizia Mancini
- Department of Experimental Medicine, Sapienza University of Rome, 00185 Roma, Italy.
| | - Lucia Piacentini
- Department of Biology and Biotechnology "Charles Darwin", Sapienza University of Rome, 00185 Roma, Italy.
| | - Assunta Maria Casale
- Department of Biology and Biotechnology "Charles Darwin", Sapienza University of Rome, 00185 Roma, Italy.
| | - Ludger Wessjohann
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany.
| | - Roberta Gazzino
- Department of Biology and Biotechnology "Charles Darwin", Sapienza University of Rome, 00185 Roma, Italy.
| | - Paolo Costantino
- Department of Biology and Biotechnology "Charles Darwin", Sapienza University of Rome, 00185 Roma, Italy.
| | - Luciana Mosca
- Department of Biochemical Sciences, Sapienza University of Rome, 00185 Roma, Italy.
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Xu J, Yuan Y, Zhang R, Song Y, Sui T, Wang J, Wang C, Chen Y, Guan S, Wang L. A deuterohemin peptide protects a transgenic Caenorhabditis elegans model of Alzheimer’s disease by inhibiting Aβ1–42 aggregation. Bioorg Chem 2019; 82:332-339. [DOI: 10.1016/j.bioorg.2018.10.072] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 10/27/2018] [Accepted: 10/31/2018] [Indexed: 01/05/2023]
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Silveira AC, Dias JP, Santos VM, Oliveira PF, Alves MG, Rato L, Silva BM. The Action of Polyphenols in Diabetes Mellitus and Alzheimer's Disease: A Common Agent for Overlapping Pathologies. Curr Neuropharmacol 2019; 17:590-613. [PMID: 30081787 PMCID: PMC6712293 DOI: 10.2174/1570159x16666180803162059] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 05/30/2018] [Accepted: 08/03/2018] [Indexed: 12/12/2022] Open
Abstract
Diabetes Mellitus (DM) and Alzheimer's disease (AD) are two prevalent diseases in modern societies, which are caused mainly by current lifestyle, aging and genetic alterations. It has already been demonstrated that these two diseases are associated, since individuals suffering from DM are prone to develop AD. Conversely, it is also known that individuals with AD are more susceptible to DM, namely type 2 diabetes (T2DM). Therefore, these two pathologies, although completely different in terms of symptomatology, end up sharing several mechanisms at the molecular level, with the most obvious being the increase of oxidative stress and inflammation. Polyphenols are natural compounds widely spread in fruits and vegetables whose dietary intake has been considered inversely proportional to the incidence of DM and AD. So, it is believed that this group of phytochemicals may have preventive and therapeutic potential, not only by reducing the risk and delaying the development of these pathologies, but also by improving brain's metabolic profile and cognitive function. The aim of this review is to understand the extent to which DM and AD are related pathologies, the degree of similarity and the relationship between them, to detail the molecular mechanisms by which polyphenols may exert a protective effect, such as antioxidant and anti-inflammatory effects, and highlight possible advantages of their use as common preventive and therapeutic alternatives.
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Affiliation(s)
| | | | | | | | | | | | - Branca M. Silva
- Address correspondence to this author at the Faculty of Health Sciences, University of Beira Interior, Av. Infante D.Henrique, 6201-506 Covilhã, Portugal; Tel: +351 275319700; Fax: +351 275 329 183; E-mail:
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Omar SH, Scott CJ, Hamlin AS, Obied HK. Olive Biophenols Reduces Alzheimer's Pathology in SH-SY5Y Cells and APPswe Mice. Int J Mol Sci 2018; 20:ijms20010125. [PMID: 30598025 PMCID: PMC6337485 DOI: 10.3390/ijms20010125] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 12/20/2018] [Accepted: 12/25/2018] [Indexed: 11/16/2022] Open
Abstract
Alzheimer's disease (AD) is a major neurodegenerative disease, associated with the hallmark proteinacious constituent called amyloid beta (Aβ) of senile plaques. Moreover, it is already established that metals (particularly copper, zinc and iron) have a key role in the pathogenesis of AD. In order to reduce the Aβ plaque burden and overcome the side effects from the synthetic inhibitors, the current study was designed to focus on direct inhibition of with or without metal-induced Aβ fibril formation and aggregation by using olive biophenols. Exposure of neuroblastoma (SH-SY5Y) cells with Aβ42 resulted in decrease of cell viability and morphological changes might be due to severe increase in the reactive oxygen species (ROS). The pre-treated SH-SY5Y cells with olive biophenols were able to attenuate cell death caused by Aβ42, copper- Aβ42, and [laevodihydroxyphenylalanine (l-DOPA)] l-DOPA-Aβ42-induced toxicity after 24 h of treatment. Oleuropein, verbascoside and rutin were the major anti-amyloidogenic compounds. Transgenic mice (APPswe/PS1dE9) received 50 mg/kg of oleuropein containing olive leaf extracts (OLE) or control diet from 7 to 23 weeks of age. Treatment mice (OLE) were showed significantly reduced amyloid plaque deposition (p < 0.001) in cortex and hippocampus as compared to control mice. Our findings provide a basis for considering natural and low cost biophenols from olive as a promising candidate drug against AD. Further studies warrant to validate and determine the anti-amyloid mechanism, bioavailability as well as permeability of olive biophenols against blood brain barrier in AD.
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Affiliation(s)
- Syed Haris Omar
- School of Biomedical Sciences, Faculty of Sciences and Graham Centre for Agricultural Innovation, Charles Sturt University, Wagga Wagga, NSW 2678, Australia.
| | - Christopher J Scott
- School of Biomedical Sciences, Faculty of Sciences and Graham Centre for Agricultural Innovation, Charles Sturt University, Wagga Wagga, NSW 2678, Australia.
| | - Adam S Hamlin
- School of Science & Technology, University of New England, Armidale, NSW 2351, Australia.
| | - Hassan K Obied
- School of Biomedical Sciences, Faculty of Sciences and Graham Centre for Agricultural Innovation, Charles Sturt University, Wagga Wagga, NSW 2678, Australia.
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38
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Mushtaq A, Anwar R, Ahmad M. Lavandula stoechas (L) a Very Potent Antioxidant Attenuates Dementia in Scopolamine Induced Memory Deficit Mice. Front Pharmacol 2018; 9:1375. [PMID: 30532710 PMCID: PMC6265508 DOI: 10.3389/fphar.2018.01375] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 11/08/2018] [Indexed: 01/14/2023] Open
Abstract
The objective of the current project was to explore the pharmacotherapeutic role of Lavandula stoechas (L) for the management of dementia. Dementia is considered a global challenge of current century seeking special attention of pharmacologists to explore its best remedies. Methanolic extract of aerial parts of L. stoechas was tested for phytochemical analysis along with free radical scavenging activity. Behavioral studies were performed on scopolamine induced amnesic mice by using elevated plus maze (EPM), light and dark test and hole board paradigms. Biochemical investigations were made after decapitating the mice. Their brains were isolated for biochemical estimation of acetylcholinesterase (AChE), malondialdehyde (MDA), superoxide dismutase (SOD), catalase (CAT), and glutathione (GSH). Phytochemical study ensured the presence of total phenolic contents (285.91 ± 0.75 mg of GAE/g of extract), total flavonoids (134.06 ± 0.63 mg of RE/g of extract), total tannins (149.60 ± 0.93 mg of TAE/g of extract) and free radical scavenging activity (IC50 value = 76.73 μg/ml found by DPPH method). Behavioral studies indicated that animals of GVII showed higher inflexion ratio (0.40 ± 0.03) for EPM, spent most of time (227.17 ± 2.13 s) in dark area of light dark test and had many hole pockings (39.83 ± 1.88) for hole board paradigm. Moreover, biochemical studies revealed that methanolic extract of L. stoechas (800 mg/kg/p.o.) significantly (P < 0.001) reduced brain AChE and MDA levels while improved SOD, CAT, and GSH levels. Thus the findings suggest that L. stoechas stabilizes memory by enhancing cholinergic neurotransmission and by providing defense against oxidative stress in mice brain.
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Affiliation(s)
- Aamir Mushtaq
- Department of Pharmacology, Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan.,Gulab Devi Institute of Pharmacy, Gulab Devi Educational Complex, Lahore, Pakistan
| | - Rukhsana Anwar
- Department of Pharmacology, Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Mobasher Ahmad
- Department of Pharmacology, Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan.,Gulab Devi Institute of Pharmacy, Gulab Devi Educational Complex, Lahore, Pakistan
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Nabavi SF, Sureda A, Dehpour AR, Shirooie S, Silva AS, Devi KP, Ahmed T, Ishaq N, Hashim R, Sobarzo-Sánchez E, Daglia M, Braidy N, Volpicella M, Vacca RA, Nabavi SM. Regulation of autophagy by polyphenols: Paving the road for treatment of neurodegeneration. Biotechnol Adv 2018; 36:1768-1778. [DOI: 10.1016/j.biotechadv.2017.12.001] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 12/01/2017] [Accepted: 12/03/2017] [Indexed: 12/11/2022]
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Xu J, Wang K, Yuan Y, Li H, Zhang R, Guan S, Wang L. A Novel Peroxidase Mimics and Ameliorates Alzheimer's Disease-Related Pathology and Cognitive Decline in Mice. Int J Mol Sci 2018; 19:ijms19113304. [PMID: 30352982 PMCID: PMC6274722 DOI: 10.3390/ijms19113304] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 10/14/2018] [Accepted: 10/19/2018] [Indexed: 02/07/2023] Open
Abstract
Alzheimer's disease (AD) is the most common neurodegenerative disorder in the elderly, which is characterized by the accumulation of amyloid β (Aβ) plaques, oxidative stress, and neuronal loss. Therefore, clearing Aβ aggregates and reducing oxidative stress could be an effective therapeutic strategy for AD. Deuterohemin-AlaHisThrValGluLys (DhHP-6), a novel deuterohemin-containing peptide mimetic of the natural microperoxidase-11 (MP-11), shows higher antioxidant activity and stability compared to the natural microperoxidases. DhHP-6 possesses the ability of extending lifespan and alleviating paralysis in the Aβ1-42 transgenic Caenorhabditis elegans CL4176 model of AD, as shown in our previous study. Therefore, this study was aimed at exploring the neuroprotective effect of DhHP-6 in the APPswe/PSEN1dE9 transgenic mouse model of AD. DhHP-6 reduced the diameter and fiber structure of Aβ1-42 aggregation in vitro, as shown by dynamic light scattering and transmission electron microscope. DhHP-6 exerted its neuroprotective effect by inhibiting Aβ aggregation and plaque formation, and by reducing Aβ1-42 oligomers-induced neurotoxicity on HT22 (mouse hippocampal neuronal) and SH-SY5Y (human neuroblastoma) cells. In the AD mouse model, DhHP-6 significantly ameliorated cognitive decline and improved spatial learning ability in behavioral tests including the Morris water maze, Y-maze, novel object recognition, open field, and nest-building test. Moreover, DhHP-6 reduced the deposition of Aβ plaques in the cerebral cortex and hippocampus. More importantly, DhHP-6 restored the morphology of astrocytes and microglia, and significantly reduced the levels of pro-inflammatory cytokines. Our findings provide a basis for considering the non-toxic, peroxidase mimetic DhHP-6 as a new candidate drug against AD.
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Affiliation(s)
- Jia Xu
- School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Kai Wang
- School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Ye Yuan
- School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Hui Li
- School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Ruining Zhang
- School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Shuwen Guan
- School of Life Sciences, Jilin University, Changchun 130012, China.
- Engineering Laboratory for AIDS Vaccine, Jilin University, Changchun 130012, China.
- Key Laboratory for Molecular Enzymology and Engineering, the Ministry of Education, Jilin Universtiy, Changchun 130012, China.
| | - Liping Wang
- School of Life Sciences, Jilin University, Changchun 130012, China.
- Engineering Laboratory for AIDS Vaccine, Jilin University, Changchun 130012, China.
- Key Laboratory for Molecular Enzymology and Engineering, the Ministry of Education, Jilin Universtiy, Changchun 130012, China.
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Wu SY, Huang YJ, Tzeng YM, Huang CYF, Hsiao M, Wu ATH, Huang TH. Destruxin B Suppresses Drug-Resistant Colon Tumorigenesis and Stemness Is Associated with the Upregulation of miR-214 and Downregulation of mTOR/β-Catenin Pathway. Cancers (Basel) 2018; 10:cancers10100353. [PMID: 30257507 PMCID: PMC6209980 DOI: 10.3390/cancers10100353] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 09/18/2018] [Accepted: 09/22/2018] [Indexed: 12/12/2022] Open
Abstract
Background: Drug resistance represents a major challenge for treating patients with colon cancer. Accumulating evidence suggests that Insulin-like growth factor (IGF)-associated signaling promotes colon tumorigenesis and cancer stemness. Therefore, the identification of agents, which can disrupt cancer stemness signaling, may provide improved therapeutic efficacy. Methods: Mimicking the tumor microenvironment, we treated colon cancer cells with exogenous IGF1. The increased stemness of IGF1-cultured cells was determined by ALDH1 activity, side-population, tumor sphere formation assays. Destruxin B (DB) was evaluated for its anti-tumorigenic and stemness properties using cellular viability, colony-formation tests. The mimic and inhibitor of miR-214 were used to treat colon cancer cells to show its functional association to DB treatment. In vivo mouse models were used to evaluate DB’s ability to suppress colon tumor-initiating ability and growth inhibitory function. Results: IGF1-cultured colon cancer cells showed a significant increase in 5-FU resistance and enhanced stemness properties, including an increased percentage of ALDH1+, side-population cells, tumor sphere generation in vitro, and increased tumor initiation in vivo. In support, using public databases showed that increased IGF1 expression was significantly associated with a poorer prognosis in patients with colon cancer. DB, a hexadepsipeptide mycotoxin, was able to suppress colon tumorigenic phenotypes, including colony and sphere formation. The sequential treatment of DB, followed by 5-FU, synergistically inhibited the viability of colon cancer cells. In vivo studies showed that DB suppressed the tumorigenesis by 5-FU resistant colon cells, and in a greater degree when combined with 5-FU. Mechanistically, DB treatment was associated with decreased the mammalian target of rapamycin (mTOR) and β-catenin expression and an increased miR-214 level. Conclusion: We provided evidence of DB as a potential therapeutic agent for overcoming 5-FU resistance induced by IGF1, and suppressing cancer stem-like properties in association with miR-214 regulation. Further investigation is warranted for its translation to clinical application.
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Affiliation(s)
- Szu-Yuan Wu
- Department of Radiation Oncology, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan.
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan.
| | - Yan-Jiun Huang
- Division of Colorectal Surgery, Department of Surgery, Taipei Medical University Hospital, Taipei Medical University, Taipei 110, Taiwan.
- Department of Surgery, College of Medicine, Taipei Medical University, Taipei 110, Taiwan.
| | - Yew-Min Tzeng
- Department of Life Science, National Taitung University, Taitung 950, Taiwan.
| | - Chi-Ying F Huang
- Institute of Biopharmaceutical Sciences, National Yang Ming University, Taipei 112, Taiwan.
| | - Michael Hsiao
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan.
| | - Alexander T H Wu
- The PhD Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 115, Taiwan.
- Graduate Institute of Medical Sciences, National Defence Medical Center, Taipei 114, Taiwan.
| | - Tse-Hung Huang
- Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Keelung 204, Taiwan.
- School of Traditional Chinese Medicine, Chang Gung University, Taoyuan 204 Taiwan.
- School of Nursing, National Taipei University of Nursing and Health Sciences, Taipei 23741, Taiwan.
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Ishak RAH, Mostafa NM, Kamel AO. Stealth lipid polymer hybrid nanoparticles loaded with rutin for effective brain delivery - comparative study with the gold standard (Tween 80): optimization, characterization and biodistribution. Drug Deliv 2018; 24:1874-1890. [PMID: 29191047 PMCID: PMC8241138 DOI: 10.1080/10717544.2017.1410263] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The blood–brain barrier is considered the leading physiological obstacle hindering the transport of neurotherapeutics to brain cells. The application of nanotechnology coupled with surfactant coating is one of the efficacious tactics overcoming this barrier. The aim of this study was to develop lipid polymer hybrid nanoparticles (LPHNPs), composed of a polymeric core and a phospholipid shell entangled, for the first time, with PEG-based surfactants (SAA) viz. TPGS or Solutol HS 15 in comparison with the gold standard Tween 80, aiming to enhance brain delivery and escape opsonization. LPHNPs were successfully prepared using modified single-step nanoprecipitation technique, loaded with the flavonoid rutin (RU), extracted from the flowers of Calendula officinalis L., and recently proved as a promising anti-Alzheimer. The effect of the critical process parameters (CPP) viz. PLGA amount, Wlecithin/WPLGA ratio, and Tween 80 concentration on critical quality attributes (CQA); entrapment, size and size distribution, was statistically analyzed via design of experiments, and optimized using the desirability function. The optimized CPP were maintained while substituting Tween 80 with other PEG-SAA. All hybrid particles exhibited spherical shape with perceptible lipid shells. The biocompatibility of the prepared NPs was confirmed by hemolysis test. The pharmacokinetic assessments, post-intravenous administration to rats, revealed a significant higher RU bioavailability for NPs relative to drug solution. Biodistribution studies proved non-significant differences in RU accumulation within brain, but altered phagocytic uptake among various LPHNPs. The present study endorses the successful development of LPHNPs using PEG-SAA, and confirms the prospective applicability of TPGS and Solutol in enhancing brain delivery.
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Affiliation(s)
- Rania A H Ishak
- a Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Ain Shams University , Cairo , Egypt
| | - Nada M Mostafa
- b Department of Pharmacognosy, Faculty of Pharmacy , Ain Shams University , Cairo , Egypt
| | - Amany O Kamel
- a Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Ain Shams University , Cairo , Egypt
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Pereira Rocha M, Rodrigues Valadares Campana P, de Oliveira Scoaris D, de Almeida VL, Dias Lopes JC, Fonseca Silva A, Pieters L, Gontijo Silva C. Biological activities of extracts from Aspidosperma subincanum Mart. and in silico prediction for inhibition of acetylcholinesterase. Phytother Res 2018; 32:2021-2033. [PMID: 29998591 DOI: 10.1002/ptr.6133] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 05/31/2018] [Accepted: 06/04/2018] [Indexed: 02/04/2023]
Abstract
Species of Aspidosperma are traditionally used to treat malaria, leishmaniasis, microbial, and inflammatory diseases. Aspidosperma subincanum Mart. known as "guatambu" is used in Brazilian traditional medicine to treat diabetes, hypercholesterolemia, and digestive diseases. Its tonic properties have been employed by the indigenous populations to stimulate the circulatory and genitourinary tracts and to improve respiratory function as well as to relieve spasms and to reduce fever. The species is known to contain antitumoural and antimalarial indole alkaloids. In the present study, various less explored biological activities of extracts from leaves and branches of A. subincanum were investigated, that is, inhibition of acetylcholinesterase as well as antioxidant and antibacterial activity. Twenty-one known indole alkaloids from this species were targeted for predicting the inhibition of acetylcholinesterase, and their biological activities were collected from the literature. Through in silico the prediction, the indole alkaloids uleine and derivatives demonstrated a strong probability of being able to inhibit the acetylcholinesterase enzyme, as well as the olivacine derivatives 3,4-dihydroolivacine and N-methyl-tetrahydro-olivacine (guatambuine), and the subincanadines C and E. Indeed, the extracts of A. subincanum showed acetylcholinesterase inhibitory activity, antioxidant activity in the lipid peroxidation assay, and antimicrobial activity against Staphylococcus aureus ATCC 25923, and their pharmacological properties should be explored further.
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Affiliation(s)
- Marina Pereira Rocha
- Serviço de Biotecnologia Vegetal, Fundação Ezequiel Dias, Belo Horizonte, MG, Brazil
| | - Priscilla Rodrigues Valadares Campana
- Serviço de Fitoquímica e Prospecção Farmacêutica, Fundação Ezequiel Dias, Belo Horizonte, MG, Brazil.,Departamento de Produtos Farmacêuticos, FAFAR-UFMG, Belo Horizonte, MG, Brazil
| | | | - Vera Lúcia de Almeida
- Serviço de Fitoquímica e Prospecção Farmacêutica, Fundação Ezequiel Dias, Belo Horizonte, MG, Brazil
| | - Júlio César Dias Lopes
- Chemoinformatics Group (NEQUIM), Departamento de Química, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Andréia Fonseca Silva
- Empresa de Pesquisa Agropecuária de Minas Gerais (EPAMIG), Belo Horizonte, MG, Brazil
| | - Luc Pieters
- Natural Products and Food Research and Analysis (NatuRA), Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
| | - Cláudia Gontijo Silva
- Serviço de Biotecnologia Vegetal, Fundação Ezequiel Dias, Belo Horizonte, MG, Brazil
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Lu C, Wang Y, Wang D, Zhang L, Lv J, Jiang N, Fan B, Liu X, Wang F. Neuroprotective Effects of Soy Isoflavones on Scopolamine-Induced Amnesia in Mice. Nutrients 2018; 10:E853. [PMID: 29966363 PMCID: PMC6073222 DOI: 10.3390/nu10070853] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 06/26/2018] [Accepted: 06/28/2018] [Indexed: 01/02/2023] Open
Abstract
In the recent years, interest in soybean as a neuroprotective nutrient in the management of Alzheimer’s disease (AD) has increased and soy isoflavones (SI), as kinds of soybean phytochemicals, are thought to be biologically active components that confer this beneficial effect against neurodegenerative diseases. However, the neuroprotective effect of SI is not well understood. Therefore, the present study (30 days) was conducted to investigate the neuroprotective effects of soy isoflavones (SI) on scopolamine (SCOP)-induced memory impairments in Institute of Cancer Research (ICR) mice (aged 4 weeks) and to elucidate its underlying mechanisms of action. SI (40 mg/kg) administration improved the cognitive performance of SCOP-treated mice in an object location recognition task and the Morris water maze test. SI (40 mg/kg) administration significantly enhanced cholinergic system function and suppressed oxidative stress levels in the hippocampus of SCOP-treated mice. Furthermore, SI (40 mg/kg) treatment markedly upregulated the phosphorylation levels of extracellular signal-regulated kinase (ERK), cAMP response element-binding protein (CREB) and brain-derived neurotrophic factor (BDNF) expression levels in the hippocampus. Taken together, these results demonstrated that soy isoflavones exerted a significant neuroprotective effect on cognitive dysfunctions induced by scopolamine, suggesting that soy isoflavones could be a good candidate for possible treatment of neurodegenerative diseases, such as Alzheimer’s disease (AD).
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Affiliation(s)
- Cong Lu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China.
- Research Center for Pharmacology & Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100193, China.
| | - Yan Wang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China.
| | - Donghui Wang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China.
| | - Lijing Zhang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China.
| | - Jingwei Lv
- Research Center for Pharmacology & Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100193, China.
| | - Ning Jiang
- Research Center for Pharmacology & Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100193, China.
| | - Bei Fan
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China.
| | - Xinmin Liu
- Research Center for Pharmacology & Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100193, China.
| | - Fengzhong Wang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China.
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SEINO S, KIMOTO T, YOSHIDA H, TANJI K, MATSUMIYA T, HAYAKARI R, SEYA K, KAWAGUCHI S, TSURUGA K, TANAKA H, IMAIZUMI T. Gnetin C, a resveratrol dimer, reduces amyloid-β 1–42 (Aβ42) production and ameliorates Aβ42-lowered cell viability in cultured SH-SY5Y human neuroblastoma cells . Biomed Res 2018; 39:105-115. [DOI: 10.2220/biomedres.39.105] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Syota SEINO
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine
| | - Takeru KIMOTO
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine
| | - Hidemi YOSHIDA
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine
| | - Kunikazu TANJI
- Department of Neuropathology, Institute of Brain Science, Hirosaki University Graduate School of Medicine
| | - Tomoh MATSUMIYA
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine
| | - Ryo HAYAKARI
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine
| | - Kazuhiko SEYA
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine
| | - Shogo KAWAGUCHI
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine
| | - Kazushi TSURUGA
- Department of Pediatrics, Hirosaki University Graduate School of Medicine
| | - Hiroshi TANAKA
- Department of Pediatrics, Hirosaki University Graduate School of Medicine
- Department of School Health Science, Faculty of Education, Hirosaki University
| | - Tadaatsu IMAIZUMI
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine
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46
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Omar SH, Scott CJ, Hamlin AS, Obied HK. Biophenols: Enzymes (β-secretase, Cholinesterases, histone deacetylase and tyrosinase) inhibitors from olive (Olea europaea L.). Fitoterapia 2018; 128:118-129. [PMID: 29772299 DOI: 10.1016/j.fitote.2018.05.011] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 05/07/2018] [Accepted: 05/13/2018] [Indexed: 12/17/2022]
Abstract
The focus of this study was on inhibition of enzymes involved in the pathogenesis Alzheimer's disease (AD) including prime amyloid beta (Aβ) producing enzyme (β-secretase: BACE-1) and disease progression enzymes including acetylcholinesterase (AChE), butyrylcholinesterase (BChE), histone deacetylase (HDAC), and tyrosinase along with the catecholamine L-DOPA, by using olive biophenols. Here we report the strongest inhibition of BACE-1 from rutin (IC50: 3.8 nM) followed by verbascoside (IC50: 6.3 nM) and olive fruit extract (IC50: 18 ng), respectively. Olive biophenol, quercetin exhibited strongest enzyme inhibitory activity against tyrosinase (IC50: 10.73 μM), BChE (IC50: 19.08 μM), AChE (IC50: 55.44 μM), and HDAC (IC50: 105.1 μM) enzymes. Furthermore, olive biophenol verbascoside (IC50: 188.6 μM), and hydroxytyrosol extreme extract (IC50: 66.22 μg) were showed the highest levels of inhibition against the HDAC enzyme. Neuroprotective capacity against levodopa-induced toxicity in neuroblastoma (SH-SY5Y) cells of olive biophenols were assessed, where rutin indicated the highest neuroprotection (74%), followed by caffeic acid (73%), and extract hydroxytyrosol extreme (97%), respectively. To the best of our knowledge, this is the first in vitro report on the enzymes inhibitory activity of olive biophenols. Taken together, our in vitro results data suggest that olive biophenols could be a promising natural inhibitor, which may reduce the enzyme-induced toxicity associated with the oxidative stress involved in the progression of AD. CHEMICAL COMPOUNDS USED IN THE STUDY Acetylthiocholine iodide (PubChem CID: 74629); S-Butyrylthiocholine chloride (PubChem CID: 3015121); Caffeic acid (PubChem CID: 689043); Dimethyl sulfoxide (DMSO) (PubChem: 679); L-3,4-Dihydroxyphenylalanine (L-DOPA) (PubChem CID: 6047); 5,5'-Dithiobis (2-nitrobenzoic acid) (DTNB) (PubChem CID: 6254); Epigallocatechin gallate (EGCG) (PubChem CID: 65064); Ethylenediamine tetraacetic acid (EDTA) (PubChem CID: 6049); Galantamine hydrobromide (PubChem CID: 121587); l-Glutamine (PubChem CID: 5961); Hydroxytyrosol (PubChem CID: 82755); Kojic acid (PubChem CID: 3840); Luteolin (PubChem CID: 5280445); Oleuropein (PubChem CID: 5281544); Penicillin-streptomycin (PubChem CID: 131715954); Quercetin (PubChem CID: 5280343); Rutin (PubChem CID: 5280805); Tris-HCl buffer (PubChem: 93573); Trypan blue (PubChem: 9562061).
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Affiliation(s)
- Syed Haris Omar
- School of Biomedical Sciences, Faculty of Sciences, Charles Sturt University, Wagga Wagga, NSW 2678, Australia; Graham Centre for Agricultural Innovation, Charles Sturt University, Wagga Wagga, NSW 2678, Australia.
| | - Christopher J Scott
- School of Biomedical Sciences, Faculty of Sciences, Charles Sturt University, Wagga Wagga, NSW 2678, Australia; Graham Centre for Agricultural Innovation, Charles Sturt University, Wagga Wagga, NSW 2678, Australia
| | - Adam S Hamlin
- School of Science & Technology, University of New England, Armidale, NSW 2351, Australia
| | - Hassan K Obied
- School of Biomedical Sciences, Faculty of Sciences, Charles Sturt University, Wagga Wagga, NSW 2678, Australia; Graham Centre for Agricultural Innovation, Charles Sturt University, Wagga Wagga, NSW 2678, Australia
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Pistollato F, Iglesias RC, Ruiz R, Aparicio S, Crespo J, Lopez LD, Manna PP, Giampieri F, Battino M. Nutritional patterns associated with the maintenance of neurocognitive functions and the risk of dementia and Alzheimer’s disease: A focus on human studies. Pharmacol Res 2018; 131:32-43. [DOI: 10.1016/j.phrs.2018.03.012] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 03/15/2018] [Accepted: 03/15/2018] [Indexed: 11/25/2022]
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Berté TE, Dalmagro AP, Zimath PL, Gonçalves AE, Meyre-Silva C, Bürger C, Weber CJ, Dos Santos DA, Cechinel-Filho V, de Souza MM. Taraxerol as a possible therapeutic agent on memory impairments and Alzheimer's disease: Effects against scopolamine and streptozotocin-induced cognitive dysfunctions. Steroids 2018; 132:5-11. [PMID: 29355563 DOI: 10.1016/j.steroids.2018.01.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Revised: 12/19/2017] [Accepted: 01/11/2018] [Indexed: 01/23/2023]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder associated with cognitive impairment and cholinergic neuronal death, characteristic of the effect of time on biochemical neuronal function. The use of medicinal plants as an alternative form of prevention, or even as a possible treatment of AD, is therefore interesting areas of research, since the standard drugs have many side effects. Taraxerol (TRX) is a triterpene that has been isolated from several plant species, and its various pharmacological properties have already been identified, such the acetylcholinesterase (AChE) inhibition activity in vitro. There is a lack of information in literature that confirms the effect of TRX in an animal AD-like model. Seeking to fill this gap in the literature, in the present work we assessed the effect of TRX on AChE activity in the animals' encephalon and hippocampus. We also investigated the effect of TRX (1.77 µM/side, 0.5 μL) isolated from leaves of Eugenia umbelliflora Berg. on aversive memory impairments induced by scopolamine (2 µg/side, 0.5 µL) infused into rat hippocampus, and the effect of TRX (0.89 and 1.77 µM/side, 0.5 μL) on aversive memory impairments induced by streptozotocin (STZ) (2.5 mg/mL, 2.0 µL) infused i.c.v. into mice, using the step-down inhibitory avoidance task. We found that TRX significantly inhibited AChE activity in the animal's hippocampus. Furthermore, TRX significantly improved scopolamine and STZ-induced memory impairment. Taking together, these results confirms its AChE activity inhibition in animals and indicate that TRX has anti-amnesic activity that may hold significant therapeutic value in alleviating certain memory impairments observed in AD.
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Affiliation(s)
- Talita Elisa Berté
- Centro de Ciências da Saúde, CCS - Núcleo de Investigações Químico Farmacêuticas NIQFAR/UNIVALI, Rua Uruguai 458, Centro, CEP: 88302-202 Itajaí, SC, Brazil
| | - Ana Paula Dalmagro
- Centro de Ciências da Saúde, CCS - Núcleo de Investigações Químico Farmacêuticas NIQFAR/UNIVALI, Rua Uruguai 458, Centro, CEP: 88302-202 Itajaí, SC, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas/UNIVALI, Rua Uruguai 458, Centro, CEP: 88302-202 Itajaí, SC, Brazil.
| | - Priscila Laiz Zimath
- Centro de Ciências da Saúde, CCS - Núcleo de Investigações Químico Farmacêuticas NIQFAR/UNIVALI, Rua Uruguai 458, Centro, CEP: 88302-202 Itajaí, SC, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas/UNIVALI, Rua Uruguai 458, Centro, CEP: 88302-202 Itajaí, SC, Brazil
| | - Ana Elisa Gonçalves
- Centro de Ciências da Saúde, CCS - Núcleo de Investigações Químico Farmacêuticas NIQFAR/UNIVALI, Rua Uruguai 458, Centro, CEP: 88302-202 Itajaí, SC, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas/UNIVALI, Rua Uruguai 458, Centro, CEP: 88302-202 Itajaí, SC, Brazil
| | - Christiane Meyre-Silva
- Centro de Ciências da Saúde, CCS - Núcleo de Investigações Químico Farmacêuticas NIQFAR/UNIVALI, Rua Uruguai 458, Centro, CEP: 88302-202 Itajaí, SC, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas/UNIVALI, Rua Uruguai 458, Centro, CEP: 88302-202 Itajaí, SC, Brazil
| | - Cristiani Bürger
- Centro de Ciências da Saúde, CCS - Núcleo de Investigações Químico Farmacêuticas NIQFAR/UNIVALI, Rua Uruguai 458, Centro, CEP: 88302-202 Itajaí, SC, Brazil
| | - Carla J Weber
- Centro de Ciências da Saúde, CCS - Núcleo de Investigações Químico Farmacêuticas NIQFAR/UNIVALI, Rua Uruguai 458, Centro, CEP: 88302-202 Itajaí, SC, Brazil
| | - Diogo Adolfo Dos Santos
- Centro de Ciências da Saúde, CCS - Núcleo de Investigações Químico Farmacêuticas NIQFAR/UNIVALI, Rua Uruguai 458, Centro, CEP: 88302-202 Itajaí, SC, Brazil
| | - Valdir Cechinel-Filho
- Centro de Ciências da Saúde, CCS - Núcleo de Investigações Químico Farmacêuticas NIQFAR/UNIVALI, Rua Uruguai 458, Centro, CEP: 88302-202 Itajaí, SC, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas/UNIVALI, Rua Uruguai 458, Centro, CEP: 88302-202 Itajaí, SC, Brazil
| | - Márcia M de Souza
- Centro de Ciências da Saúde, CCS - Núcleo de Investigações Químico Farmacêuticas NIQFAR/UNIVALI, Rua Uruguai 458, Centro, CEP: 88302-202 Itajaí, SC, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas/UNIVALI, Rua Uruguai 458, Centro, CEP: 88302-202 Itajaí, SC, Brazil
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49
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Simioni C, Zauli G, Martelli AM, Vitale M, Sacchetti G, Gonelli A, Neri LM. Oxidative stress: role of physical exercise and antioxidant nutraceuticals in adulthood and aging. Oncotarget 2018; 9:17181-17198. [PMID: 29682215 PMCID: PMC5908316 DOI: 10.18632/oncotarget.24729] [Citation(s) in RCA: 258] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 03/08/2018] [Indexed: 12/12/2022] Open
Abstract
Physical exercise is considered to be one of the beneficial factors of a proper lifestyle and is nowadays seen as an indispensable element for good health, able to lower the risk of disorders of the cardiovascular, endocrine and osteomuscular apparatus, immune system diseases and the onset of potential neoplasms. A moderate and programmed physical exercise has often been reported to be therapeutic both in the adulthood and in aging, since capable to promote fitness. Regular exercise alleviates the negative effects caused by free radicals and offers many health benefits, including reduced risk of all-cause mortality, sarcopenia in the skeletal muscle, chronic disease, and premature death in elderly people. However, physical performance is also known to induce oxidative stress, inflammation, and muscle fatigue. Many efforts have been carried out to identify micronutrients and natural compounds, also known as nutraceuticals, able to prevent or attenuate the exercise-induced oxidative stress and inflammation. The aim of this review is to discuss the benefits deriving from a constant physical activity and by the intake of antioxidant compounds to protect the body from oxidative stress. The attention will be focused mainly on three natural antioxidants, which are quercetin, resveratrol and curcumin. Their properties and activity will be described, as well as their benefits on physical activity and on aging, which is expected to increase through the years and can get favorable benefits from a constant exercise activity.
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Affiliation(s)
- Carolina Simioni
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Giorgio Zauli
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Alberto M. Martelli
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Marco Vitale
- Department of Medicine and Surgery, University of Parma, Parma, Italy
- CoreLab, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
| | - Gianni Sacchetti
- Department of Life Sciences and Biotechnology, Pharmaceutical Biology Laboratory, University of Ferrara, Ferrara, Italy
| | - Arianna Gonelli
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Luca M. Neri
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
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Ganesan P, Ramalingam P, Karthivashan G, Ko YT, Choi DK. Recent developments in solid lipid nanoparticle and surface-modified solid lipid nanoparticle delivery systems for oral delivery of phyto-bioactive compounds in various chronic diseases. Int J Nanomedicine 2018; 13:1569-1583. [PMID: 29588585 PMCID: PMC5858819 DOI: 10.2147/ijn.s155593] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Solid lipid nanoparticle (SLN) delivery systems have a wide applicability in the delivery of phyto-bioactive compounds to treat various chronic diseases, including diabetes, cancer, obesity and neurodegenerative diseases. The multiple benefits of SLN delivery include improved stability, smaller particle size, leaching prevention and enhanced lymphatic uptake of the bioactive compounds through oral delivery. However, the burst release makes the SLN delivery systems inadequate for the oral delivery of various phyto-bioactive compounds that can treat such chronic diseases. Recently, the surface-modified SLN (SMSLN) was observed to overcome this limitation for oral delivery of phyto-bioactive compounds, and there is growing evidence of an enhanced uptake of curcumin delivered orally via SMSLNs in the brain. This review focuses on different SLN and SMSLN systems that are useful for oral delivery of phyto-bioactive compounds to treat various chronic diseases.
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Affiliation(s)
- Palanivel Ganesan
- Department of Biotechnology, College of Biomedical and Health Science, Konkuk University, Chungju, Republic of Korea
- Nanotechnology Research Center and Department of Applied Life Science, Konkuk University, Chungju, Republic of Korea
| | - Prakash Ramalingam
- Department of Pharmaceutical Sciences, Philadelphia College of Pharmacy, University of the Sciences, Philadelphia, PA, USA
- College of Pharmacy, Gachon University, Incheon, Republic of Korea
| | - Govindarajan Karthivashan
- Department of Biotechnology, College of Biomedical and Health Science, Konkuk University, Chungju, Republic of Korea
| | - Young Tag Ko
- College of Pharmacy, Gachon University, Incheon, Republic of Korea
| | - Dong-Kug Choi
- Department of Biotechnology, College of Biomedical and Health Science, Konkuk University, Chungju, Republic of Korea
- Nanotechnology Research Center and Department of Applied Life Science, Konkuk University, Chungju, Republic of Korea
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