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Hiskens MI, Li KM, Schneiders AG, Fenning AS. Repetitive mild traumatic brain injury-induced neurodegeneration and inflammation is attenuated by acetyl-L-carnitine in a preclinical model. Front Pharmacol 2023; 14:1254382. [PMID: 37745053 PMCID: PMC10514484 DOI: 10.3389/fphar.2023.1254382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 08/31/2023] [Indexed: 09/26/2023] Open
Abstract
Repetitive mild traumatic brain injuries (rmTBI) may contribute to the development of neurodegenerative diseases through secondary injury pathways. Acetyl-L-carnitine (ALC) shows neuroprotection through anti-inflammatory effects and via regulation of neuronal synaptic plasticity by counteracting post-trauma excitotoxicity. This study aimed to investigate mechanisms implicated in the etiology of neurodegeneration in rmTBI mice treated with ALC. Adult male C57BL/6J mice were allocated to sham, rmTBI or ALC + rmTBI groups. 15 rmTBIs were administered across 23 days using a modified weight drop model. Neurological testing and spatial learning and memory assessments via the Morris Water Maze (MWM) were undertaken at 48 h and 3 months. RT-PCR analysis of the cortex and hippocampus was undertaken for MAPT, GFAP, AIF1, GRIA, CCL11, TDP43, and TNF genes. Gene expression in the cortex showed elevated mRNA levels of MAPT, TNF, and GFAP in the rmTBI group that were reduced by ALC treatment. In the hippocampus, mRNA expression was elevated for GRIA1 in the rmTBI group but not the ALC + rmTBI treatment group. ALC treatment showed protective effects against the deficits displayed in neurological testing and MWM assessment observed in the rmTBI group. While brain structures display differential vulnerability to insult as evidenced by location specific postimpact disruption of key genes, this study shows correlative mRNA neurodegeneration and functional impairment that was ameliorated by ALC treatment in several key genes. ALC may mitigate damage inflicted in the various secondary neurodegenerative cascades and contribute to functional protection following rmTBI.
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Affiliation(s)
- Matthew I. Hiskens
- Mackay Institute of Research and Innovation, Mackay Hospital and Health Service, Mackay, QLD, Australia
- School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, QLD, Australia
| | - Katy M. Li
- School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, QLD, Australia
| | - Anthony G. Schneiders
- School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, QLD, Australia
| | - Andrew S. Fenning
- School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, QLD, Australia
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2
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Arnoldy L, Gauci S, Young LM, Marx W, Macpherson H, Pipingas A, Civier O, White DJ. The association of dietary and nutrient patterns on neurocognitive decline: A systematic review of MRI and PET studies. Ageing Res Rev 2023; 87:101892. [PMID: 36878405 DOI: 10.1016/j.arr.2023.101892] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 02/14/2023] [Accepted: 02/27/2023] [Indexed: 03/08/2023]
Abstract
BACKGROUND As the global population ages, there has been a growing incidence of neurodegenerative diseases such as Alzheimer's. More recently, studies exploring the relationship between dietary patterns and neuroimaging outcomes have received particular attention. This systematic literature review provides a structured overview of the association between dietary and nutrient patterns on neuroimaging outcomes and cognitive markers in middle-aged to older adults. A comprehensive literature search was conducted to find relevant articles published from 1999 to date using the following databases Ovid MEDLINE, Embase, PubMed, Scopus and Web of Science. The inclusion criteria for the articles comprised studies reporting on the association between dietary patterns and neuroimaging outcomes, which includes both specific pathological hallmarks of neurodegenerative diseases such as Aβ and tau and nonspecific markers such as structural MRI and glucose metabolism. The risk of bias was evaluated using the Quality Assessment tool from the National Heart, Lung, and Blood Institute of the National Institutes of Health. The results were then organized into a summary of results table, collated based on synthesis without meta-analysis. After conducting the search, 6050 records were extracted and screened for eligibility, with 107 eligible for full-text screening and 42 articles ultimately being included in this review. The results of the systematic review indicate that there is some evidence suggesting that healthy dietary and nutrient patterns were associated with neuroimaging measures, indicative of a protective influence on neurodegeneration and brain ageing. Conversely, unhealthy dietary and nutrient patterns showed evidence pointing to decreased brain volumes, poorer cognition and increased Aβ deposition. Future research should focus on sensitive neuroimaging acquisition and analysis methods, to study early neurodegenerative changes and identify critical periods for interventions and prevention. SYSTEMATIC REVIEW REGISTRATION PROSPERO registration no, CRD42020194444).
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Affiliation(s)
- Lizanne Arnoldy
- Centre of Human Psychopharmacology, Centre for Mental Health and Brain Sciences, Swinburne University, Melbourne Australia.
| | - Sarah Gauci
- Centre of Human Psychopharmacology, Centre for Mental Health and Brain Sciences, Swinburne University, Melbourne Australia; IMPACT - the Institute for Mental and Physical Health and Clinical Translation, Food & Mood Centre, School of Medicine, Deakin University, Geelong, Australia
| | - Lauren M Young
- Centre of Human Psychopharmacology, Centre for Mental Health and Brain Sciences, Swinburne University, Melbourne Australia; IMPACT - the Institute for Mental and Physical Health and Clinical Translation, Food & Mood Centre, School of Medicine, Deakin University, Geelong, Australia
| | - Wolfgang Marx
- IMPACT - the Institute for Mental and Physical Health and Clinical Translation, Food & Mood Centre, School of Medicine, Deakin University, Geelong, Australia
| | - Helen Macpherson
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
| | - Andrew Pipingas
- Centre of Human Psychopharmacology, Centre for Mental Health and Brain Sciences, Swinburne University, Melbourne Australia
| | - Oren Civier
- Swinburne Neuroimaging, Swinburne University, Melbourne, Australia
| | - David J White
- Centre of Human Psychopharmacology, Centre for Mental Health and Brain Sciences, Swinburne University, Melbourne Australia; Swinburne Neuroimaging, Swinburne University, Melbourne, Australia
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Refaey MS, Shah MA, Fayed MA, Rasul A, Siddiqui MF, Qasim M, Althobaiti NA, Saleem U, Malik A, Blundell R, Eldahshan OA. Neuroprotective effects of steroids. PHYTONUTRIENTS AND NEUROLOGICAL DISORDERS 2023:283-304. [DOI: 10.1016/b978-0-12-824467-8.00005-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Chaoul V, Awad M, Harb F, Najjar F, Hamade A, Nabout R, Soueid J. Saffron Extract Attenuates Anxiogenic Effect and Improves Cognitive Behavior in an Adult Zebrafish Model of Traumatic Brain Injury. Int J Mol Sci 2022; 23:ijms231911600. [PMID: 36232902 PMCID: PMC9570094 DOI: 10.3390/ijms231911600] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/16/2022] [Accepted: 09/26/2022] [Indexed: 11/16/2022] Open
Abstract
Traumatic brain injury (TBI) has the highest mortality rates worldwide, yet effective treatment remains unavailable. TBI causes inflammatory responses, endoplasmic reticulum stress, disruption of the blood-brain barrier and neurodegeneration that lead to loss of cognition, memory and motor skills. Saffron (Crocus sativus L.) is known for its anti-inflammatory and neuroprotective effects, which makes it a potential candidate for TBI treatment. Zebrafish (Danio rerio) shares a high degree of genetic homology and cell signaling pathways with mammals. Its active neuro-regenerative function makes it an excellent model organism for TBI therapeutic drug identification. The objective of this study was to assess the effect of saffron administration to a TBI zebrafish model by investigating behavioral outcomes such as anxiety, fear and memory skills using a series of behavioral tests. Saffron exhibited anxiolytic effect on anxiety-like behaviors, and showed prevention of fear inhibition observed after TBI. It improved learning and enhanced memory performance. These results suggest that saffron could be a novel therapeutic enhancer for neural repair and regeneration of networks post-TBI.
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Affiliation(s)
- Victoria Chaoul
- Department of Life and Earth Sciences, Faculty of Sciences, Lebanese University, Jdeidet P.O. Box 90656, Lebanon
| | - Maria Awad
- Department of Life and Earth Sciences, Faculty of Sciences, Lebanese University, Jdeidet P.O. Box 90656, Lebanon
| | - Frederic Harb
- Department of Life and Earth Sciences, Faculty of Sciences, Lebanese University, Jdeidet P.O. Box 90656, Lebanon
- Department of Biomedical Sciences, Faculty of Medicine and Medical Sciences, University of Balamand, Kalhat, Al Kurah P.O. Box 100, Lebanon
| | - Fadia Najjar
- Laboratoire d’Innovation Thérapeutique, Departments of Biology, Chemistry and Biochemistry, Faculty of Sciences II, Lebanese University, Jdeidet P.O. Box 90656, Lebanon
| | - Aline Hamade
- Laboratoire d’Innovation Thérapeutique, Departments of Biology, Chemistry and Biochemistry, Faculty of Sciences II, Lebanese University, Jdeidet P.O. Box 90656, Lebanon
| | - Rita Nabout
- Department of Life and Earth Sciences, Faculty of Sciences, Lebanese University, Jdeidet P.O. Box 90656, Lebanon
| | - Jihane Soueid
- Department of Life and Earth Sciences, Faculty of Sciences, Lebanese University, Jdeidet P.O. Box 90656, Lebanon
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut P.O. Box 11-0236, Lebanon
- Correspondence:
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5
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ALNasser MN, Mellor IR, Carter WG. A Preliminary Assessment of the Nutraceutical Potential of Acai Berry ( Euterpe sp.) as a Potential Natural Treatment for Alzheimer's Disease. Molecules 2022; 27:4891. [PMID: 35956841 PMCID: PMC9370152 DOI: 10.3390/molecules27154891] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 07/20/2022] [Accepted: 07/28/2022] [Indexed: 12/21/2022] Open
Abstract
Alzheimer's disease (AD) is characterised by progressive neuronal atrophy and the loss of neuronal function as a consequence of multiple pathomechanisms. Current AD treatments primarily operate at a symptomatic level to treat a cholinergic deficiency and can cause side effects. Hence, there is an unmet need for healthier lifestyles to reduce the likelihood of AD as well as improved treatments with fewer adverse reactions. Diets rich in phytochemicals may reduce neurodegenerative risk and limit disease progression. The native South American palm acai berry (Euterpe oleraceae) is a potential source of dietary phytochemicals beneficial to health. This study aimed to screen the nutraceutical potential of the acai berry, in the form of aqueous and ethanolic extracts, for the ability to inhibit acetyl- and butyryl-cholinesterase (ChE) enzymes and scavenge free radicals via 2,2-diphenyl-1-picryl-hydrazyl-hydrate (DPPH) or 2,2'-azino-bis-3-ethylbenzthiazoline-6-sulphonic acid (ABTS) assays. In addition, this study aimed to quantify the acai berry's antioxidant potential via hydrogen peroxide or hydroxyl scavenging, nitric oxide scavenging, lipid peroxidation inhibition, and the ability to reduce ferric ions. Total polyphenol and flavonoid contents were also determined. Acai aqueous extract displayed a concentration-dependent inhibition of acetyl- and butyryl-cholinesterase enzymes. Both acai extracts displayed useful concentration-dependent free radical scavenging and antioxidant abilities, with the acai ethanolic extract being the most potent antioxidant and displaying the highest phenolic and flavonoid contents. In summary, extracts of the acai berry contain nutraceutical components with anti-cholinesterase and antioxidant capabilities and may therefore provide a beneficial dietary component that limits the pathological deficits evidenced in AD.
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Affiliation(s)
- Maryam N. ALNasser
- Department of Biological Sciences, College of Science, King Faisal University, P.O. Box No. 400, Al-Ahsa 31982, Saudi Arabia;
- School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK;
- School of Medicine, Royal Derby Hospital Centre, University of Nottingham, Derby DE22 3DT, UK
| | - Ian R. Mellor
- School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK;
| | - Wayne G. Carter
- School of Medicine, Royal Derby Hospital Centre, University of Nottingham, Derby DE22 3DT, UK
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ALNasser MN, Mellor IR. Neuroprotective activities of acai berries (Euterpe sp.): A review. JOURNAL OF HERBMED PHARMACOLOGY 2022. [DOI: 10.34172/jhp.2022.21] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Dietary interventions rich in fruits and vegetables in aging people can reverse or mitigate age-related cognitive declines, delay the onset of neurodegenerative diseases (NDDs), and provide long-term health dividends. The novel food, popularly known as "Acai", is a berry belonging to the Euterpe genus of tropical palms trees and natively found in South America. Euterpe oleracea has been given much attention among scientists due to its high antioxidant capacity compared to other fruits and berries. Additionally, acai pulp composition analysis found that it contains various biologically active phytochemicals. In this review, we focused on current evidence relating to acai berry neuroprotection mechanisms and its efficacy in preventing or reversing neurodegeneration and age-related cognitive decline. A number of studies have illustrated the potential neuroprotective properties of acai berries. They have shown that their chemical extracts have antioxidant and anti-inflammatory properties and maintain proteins, calcium homeostasis, and mitochondrial function. Moreover, acai berry extract offers other neuromodulatory mechanisms, including anticonvulsant, antidepressant, and anti-aging properties. This neuromodulation gives valuable insights into the acai pulp and its considerable pharmacological potential on critical brain areas involved in memory and cognition. The isolated chemical matrix of acai berries could be a new substitute in research for NDD medicine development. However, due to the limited number of investigations, there is a need for further efforts to establish studies that enable progressing to clinical trials to consequently prove and ratify the therapeutic potential of this berry for several incurable NDDs.
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Affiliation(s)
- Maryam N. ALNasser
- School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, United Kingdom
- Department of Biological Sciences, College of Science, King Faisal University, Saudi Arabia
| | - Ian R. Mellor
- School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, United Kingdom
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Le TT, Kang TK, Do HT, Nghiem TD, Lee WB, Jung SH. Protection Against Oxidative Stress-Induced Retinal Cell Death by Compounds Isolated From Ehretia asperula. Nat Prod Commun 2021. [DOI: 10.1177/1934578x211067986] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Ehretia asperula ( E asperula) is a well-known traditional medicinal plant in Vietnam with potent activity against a wide range of diseases, including hepatitis B and various cancers. Although E asperula has been used in traditional medicine, the efficacy of E asperula and its bioactive components on retinal degenerative diseases has not been fully evaluated. In present this study, we found that ethanolic extracts of E asperula increased cell viability in retinal precursor cells exposed to glutamate/BSO-induced excitotoxicity/oxidative stress. The major responsible bioactive compounds were rosmarinic acid and methylrosmarinic acid. First, 10 known compounds were isolated from E asperula leaves. Their chemical structures were determined using 1D and 2D nuclear magnetic resonance, and compared with published data. Using high-performance liquid chromatography, we determined the content of 4 compounds in E asperula extract: rosmarinic acid, lithospermic acid B, astragalin, and kaempferol 3-rutinoside. The most abundant of these compounds was lithospermic acid B. The protective effects of the pure compounds and ethanolic extracts against excitotoxicity and oxidative stress-induced retinal cell death were tested in R28 cells. Both 70% and 95% ethanolic extracts of E asperula increased cell viability in these conditions. Rosmarinic acid and methyl rosmarinic acid were more effective at protecting against retinal cell death and elevated reactive oxygen species in cells subjected to glutamate/BSO-induced excitotoxicity/oxidative stress. These findings suggested that E asperula could potentially be used to treat retinal degeneration.
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Affiliation(s)
- Tam Thi Le
- Korea Institute of Science & Technology, Gangneung, Republic of Korea
- KIST School, Korea University of Science and Technology, Gangneung, Republic of Korea
| | - Tae Kyeom Kang
- Korea Institute of Science & Technology, Gangneung, Republic of Korea
| | - Ha Thi Do
- National Institute of Medical Materials, Hanoi, Vietnam
| | | | - Wook-Bin Lee
- Korea Institute of Science & Technology, Gangneung, Republic of Korea
| | - Sang Hoon Jung
- Korea Institute of Science & Technology, Gangneung, Republic of Korea
- KIST School, Korea University of Science and Technology, Gangneung, Republic of Korea
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8
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Siervo M, Shannon OM, Llewellyn DJ, Stephan BC, Fontana L. Mediterranean diet and cognitive function: From methodology to mechanisms of action. Free Radic Biol Med 2021; 176:105-117. [PMID: 34562607 DOI: 10.1016/j.freeradbiomed.2021.09.018] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 09/16/2021] [Accepted: 09/20/2021] [Indexed: 12/12/2022]
Abstract
The traditional Mediterranean diet (MedDiet), rich in minimally processed plant foods and fish, has been widely recognized to be one of the healthiest diets. Data from multiple randomized clinical trials have demonstrated its powerful effect against oxidative stress, inflammation and the development and progression of cardiovascular disease, type 2 diabetes, and other metabolic conditions that play a crucial role in the pathogenesis of neurodegenerative diseases. The protecting effects of the MedDiet against cognitive decline have been investigated in several observational and experimental studies. Data from observational studies suggest that the MedDiet may represent an effective dietary strategy for the early prevention of dementia, although these findings require further substantiation in clinical trials which have so far produced inconclusive results. Moreover, as we discuss in this review, accumulating data emphasizes the importance of: 1) maintaining an optimal nutritional and metabolic status for the promotion of healthy cognitive aging, and 2) implementing cognition-sparing dietary and lifestyle interventions during early time-sensitive windows before the pathological cascades turn into an irreversible state. In summary, components of the MedDiet pattern, such as essential fatty acids, polyphenols and vitamins, have been associated with reduced oxidative stress and the current evidence from observational studies seems to assign to the MedDiet a beneficial role in promoting brain health; however, results from clinical trials have been inconsistent. While we advocate for longitudinal analyses and for larger and longer clinical trials to be conducted, we assert our interim support to the use of the MedDiet as a protective dietary intervention for cognitive function based on its proven cardiovascular and metabolic benefits.
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Affiliation(s)
- Mario Siervo
- School of Life Sciences, The University of Nottingham Medical School, Queen's Medical Centre, Nottingham, UK.
| | - Oliver M Shannon
- Human Nutrition Research Centre, Population Health Sciences Institute, Newcastle University, Newcastle Upon Tyne, UK
| | - David J Llewellyn
- University of Exeter Medical School, Exeter, UK; Alan Turing Institute, London, UK
| | - Blossom Cm Stephan
- Institute of Mental Health, The University of Nottingham Medical School, Nottingham, UK
| | - Luigi Fontana
- Charles Perkins Center, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia; Department of Endocrinology, Royal Prince Alfred Hospital, Sydney, NSW, Australia; Department of Clinical and Experimental Sciences, Brescia University School of Medicine, Brescia, Italy
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9
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Antitumor Activity of Rosmarinic Acid-Loaded Silk Fibroin Nanoparticles on HeLa and MCF-7 Cells. Polymers (Basel) 2021; 13:polym13183169. [PMID: 34578069 PMCID: PMC8467615 DOI: 10.3390/polym13183169] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 09/15/2021] [Accepted: 09/16/2021] [Indexed: 12/24/2022] Open
Abstract
Rosmarinic acid (RA), one of the most important polyphenol-based antioxidants, has drawn increasing attention because of its remarkable bioactive properties, including anti-inflammatory, anticancer and antibacterial activities. The aim of this study was to synthesize and characterize RA-loaded silk fibroin nanoparticles (RA-SFNs) in terms of their physical–chemical features and composition, and to investigate their antitumor activity against human cervical carcinoma and breast cancer cell lines (HeLa and MCF-7). Compared with the free form, RA bioavailability was enhanced when the drug was adsorbed onto the surface of the silk fibroin nanoparticles (SFNs). The resulting particle diameter was 255 nm, with a polydispersity index of 0.187, and the Z-potential was −17 mV. The drug loading content of the RA-SFNs was 9.4 wt.%. Evaluation of the in vitro drug release of RA from RA-SFNs pointed to a rapid release in physiological conditions (50% of the total drug content was released in 0.5 h). Unloaded SFNs exhibited good biocompatibility, with no significant cytotoxicity observed during the first 48 h against HeLa and MCF-7 cancer cells. In contrast, cell death increased in a concentration-dependent manner after treatment with RA-SFNs, reaching an IC50 value of 1.568 and 1.377 mg/mL on HeLa and MCF-7, respectively. For both cell lines, the IC50 of free RA was higher. The cellular uptake of the nanoparticles studied was increased when RA was loaded on them. The cell cycle and apoptosis studies revealed that RA-SFNs inhibit cell proliferation and induce apoptosis on HeLa and MCF-7 cell lines. It is concluded, therefore, that the RA delivery platform based on SFNs improves the antitumor potential of RA in the case of the above cancers.
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Armeli F, Bonucci A, Maggi E, Pinto A, Businaro R. Mediterranean Diet and Neurodegenerative Diseases: The Neglected Role of Nutrition in the Modulation of the Endocannabinoid System. Biomolecules 2021; 11:biom11060790. [PMID: 34073983 PMCID: PMC8225112 DOI: 10.3390/biom11060790] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/17/2021] [Accepted: 05/20/2021] [Indexed: 12/17/2022] Open
Abstract
Neurodegenerative disorders are a widespread cause of morbidity and mortality worldwide, characterized by neuroinflammation, oxidative stress and neuronal depletion. The broad-spectrum neuroprotective activity of the Mediterranean diet is widely documented, but it is not yet known whether its nutritional and caloric balance can induce a modulation of the endocannabinoid system. In recent decades, many studies have shown how endocannabinoid tone enhancement may be a promising new therapeutic strategy to counteract the main hallmarks of neurodegeneration. From a phylogenetic point of view, the human co-evolution between the endocannabinoid system and dietary habits could play a key role in the pro-homeostatic activity of the Mediterranean lifestyle: this adaptive balance among our ancestors has been compromised by the modern Western diet, resulting in a “clinical endocannabinoid deficiency syndrome”. This review aims to evaluate the evidence accumulated in the literature on the neuroprotective, immunomodulatory and antioxidant properties of the Mediterranean diet related to the modulation of the endocannabinoid system, suggesting new prospects for research and clinical interventions against neurodegenerative diseases in light of a nutraceutical paradigm.
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Affiliation(s)
- Federica Armeli
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica, 79, 04100 Latina, Italy; (F.A.); (A.B.); (E.M.)
| | - Alessio Bonucci
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica, 79, 04100 Latina, Italy; (F.A.); (A.B.); (E.M.)
| | - Elisa Maggi
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica, 79, 04100 Latina, Italy; (F.A.); (A.B.); (E.M.)
| | - Alessandro Pinto
- Department of Experimental Medicine, Sapienza University of Rome, 00161 Rome, Italy;
| | - Rita Businaro
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica, 79, 04100 Latina, Italy; (F.A.); (A.B.); (E.M.)
- Correspondence:
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11
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Jurcau A. The Role of Natural Antioxidants in the Prevention of Dementia-Where Do We Stand and Future Perspectives. Nutrients 2021; 13:282. [PMID: 33498262 PMCID: PMC7909256 DOI: 10.3390/nu13020282] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/15/2021] [Accepted: 01/18/2021] [Indexed: 02/06/2023] Open
Abstract
Dementia, and especially Alzheimer's disease (AD), puts significant burden on global healthcare expenditure through its increasing prevalence. Research has convincingly demonstrated the implication of oxidative stress in the pathogenesis of dementia as well as of the conditions which increase the risk of developing dementia. However, drugs which target single pathways have so far failed in providing significant neuroprotection. Natural antioxidants, due to their effects in multiple pathways through which oxidative stress leads to neurodegeneration and triggers neuroinflammation, could prove valuable weapons in our fight against dementia. Although efficient in vitro and in animal models of AD, natural antioxidants in human trials have many drawbacks related to the limited bioavailability, unknown optimal dose, or proper timing of the treatment. Nonetheless, trials evaluating several of these natural compounds are ongoing, as are attempts to modify these compounds to achieve improved bioavailability.
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Affiliation(s)
- Anamaria Jurcau
- Department of Psycho-Neurosciences and Rehabilitation, Faculty of Medicine and Pharmacy, University of Oradea, nr 1 Universitatii Street, 410087 Oradea, Romania;
- Neurology Ward, Clinical Municipal Hospital “Dr. G. Curteanu”, nr 12 Corneliu Coposu Street, 410469 Oradea, Romania
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12
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Hassanzadeh K, Buccarello L, Dragotto J, Mohammadi A, Corbo M, Feligioni M. Obstacles against the Marketing of Curcumin as a Drug. Int J Mol Sci 2020; 21:E6619. [PMID: 32927725 PMCID: PMC7554750 DOI: 10.3390/ijms21186619] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/07/2020] [Accepted: 09/09/2020] [Indexed: 12/12/2022] Open
Abstract
Among the extensive public and scientific interest in the use of phytochemicals to prevent or treat human diseases in recent years, natural compounds have been highly investigated to elucidate their therapeutic effect on chronic human diseases including cancer, cardiovascular disease, and neurodegenerative disease. Curcumin, an active principle of the perennial herb Curcuma longa, has attracted an increasing research interest over the last half-century due to its diversity of molecular targets, including transcription factors, enzymes, protein kinases, growth factors, inflammatory cytokines, receptors, and it's interesting pharmacological activities. Despite that, the clinical effectiveness of the native curcumin is weak, owing to its low bioavailability and rapid metabolism. Preclinical data obtained from animal models and phase I clinical studies done in human volunteers confirmed a small amount of intestinal absorption, hepatic first pass effect, and some degree of intestinal metabolism, might explain its poor systemic availability when it is given via the oral route. During the last decade, researchers have attempted with new pharmaceutical methods such as nanoparticles, liposomes, micelles, solid dispersions, emulsions, and microspheres to improve the bioavailability of curcumin. As a result, a significant number of bioavailable curcumin-based formulations were introduced with a varying range of enhanced bioavailability. This manuscript critically reviews the available scientific evidence on the basic and clinical effects and molecular targets of curcumin. We also discuss its pharmacokinetic and problems for marketing curcumin as a drug.
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Affiliation(s)
- Kambiz Hassanzadeh
- European Brain Research Institute (EBRI) Rita Levi Montalcini Foundation, Viale Regina Elena 295, 00161 Rome, Italy; (K.H.); (L.B.); (J.D.)
- Department of Biotechnology and Applied Clinical Sciences, University of L’Aquila, 67100 L’Aquila, Italy
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj 66177-15175, Iran;
| | - Lucia Buccarello
- European Brain Research Institute (EBRI) Rita Levi Montalcini Foundation, Viale Regina Elena 295, 00161 Rome, Italy; (K.H.); (L.B.); (J.D.)
| | - Jessica Dragotto
- European Brain Research Institute (EBRI) Rita Levi Montalcini Foundation, Viale Regina Elena 295, 00161 Rome, Italy; (K.H.); (L.B.); (J.D.)
| | - Asadollah Mohammadi
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj 66177-15175, Iran;
| | - Massimo Corbo
- Department of Neurorehabilitation Sciences, Casa Cura Policlinico, 20144 Milano, Italy;
| | - Marco Feligioni
- European Brain Research Institute (EBRI) Rita Levi Montalcini Foundation, Viale Regina Elena 295, 00161 Rome, Italy; (K.H.); (L.B.); (J.D.)
- Department of Neurorehabilitation Sciences, Casa Cura Policlinico, 20144 Milano, Italy;
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Gd-Complex of a Rosmarinic Acid Conjugate as an Anti-Inflammatory Theranostic Agent via Reactive Oxygen Species Scavenging. Antioxidants (Basel) 2020; 9:antiox9080744. [PMID: 32823673 PMCID: PMC7464237 DOI: 10.3390/antiox9080744] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/10/2020] [Accepted: 08/10/2020] [Indexed: 12/26/2022] Open
Abstract
Rosmarinic acid (RosA), an important polyphenol, is known for its antioxidant and anti-inflammatory activities. However, its application in theranostics has been rarely reported. Therefore, a new single-molecule anti-inflammatory theranostic compound containing RosA would be of great interest. A gadolinium (Gd) complex of 1,4,7,10-tetraazacyclododecane-1,4,7-trisacetic acid (DO3A) and RosA (Gd(DO3A-RosA)(H2O)) was synthesized and examined for use as a single-molecule theranostic agent. Its kinetic stability is comparable to that of clinically used macrocyclic magnetic resonance imaging contrast agents. In addition, its relaxivity is higher than that of structurally analogous Gd-BT-DO3A. This agent was evaluated for inflammatory targeting magnetic resonance contrast and showed strong and prolonged enhancement of imaging in inflamed tissues of mice. The theranostic agent also possesses antioxidant and anti-inflammatory activities, as evidenced by reactive oxygen species scavenging, superoxide dismutase activity, and inflammatory factors. The novel RosA-conjugated Gd complex is a promising theranostic agent for the imaging of inflamed tissues, as well as for the treatment of inflammation and oxidative stress.
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14
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Novel Perspective on Alzheimer's Disease Treatment: Rosmarinic Acid Molecular Interplay with Copper(II) and Amyloid β. Life (Basel) 2020; 10:life10070118. [PMID: 32698429 PMCID: PMC7400086 DOI: 10.3390/life10070118] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/15/2020] [Accepted: 07/17/2020] [Indexed: 12/11/2022] Open
Abstract
Alzheimer's disease is a severe disorder that affects millions of people worldwide. It is a very debilitating disease with no cure at the moment. The necessity of finding an effective treatment is very demanding, and the entire scientific community is putting in a lot of effort to address this issue. The major hallmark of Alzheimer's disease is the presence of toxic aggregated species in the brain, impaired metal homeostasis, and high levels of oxidative stress. Rosmarinic acid is a well-known potent antioxidant molecule, the efficacy of which has been proved both in vitro and in vivo. In this study, we investigated the possible role played by rosmarinic acid as a mediator of the copper(II)-induced neurotoxicity. Several spectroscopic techniques and biological assays were applied to characterize the metal complexes and to evaluate the cytotoxicity and the mutagenicity of rosmarinic acid and its Cu(II) complex. Our data indicate that rosmarinic acid is able to interfere with the interaction between amyloid β and Cu(II) by forming an original ternary association.
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15
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Uddin MS, Hossain MF, Mamun AA, Shah MA, Hasana S, Bulbul IJ, Sarwar MS, Mansouri RA, Ashraf GM, Rauf A, Abdel-Daim MM, Bin-Jumah MN. Exploring the multimodal role of phytochemicals in the modulation of cellular signaling pathways to combat age-related neurodegeneration. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 725:138313. [PMID: 32464743 DOI: 10.1016/j.scitotenv.2020.138313] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 03/27/2020] [Accepted: 03/28/2020] [Indexed: 06/11/2023]
Abstract
Neurodegeneration is the progressive loss of neuronal structures and functions that lead to copious disorders like Alzheimer's (AD), Parkinson's (PD), Huntington's (HD), amyotrophic lateral sclerosis (ALS), and other less recurring diseases. Aging is the prime culprit for most neurodegenerative events. Moreover, the shared pathogenic factors of many neurodegenerative processes are inflammatory responses and oxidative stress (OS). Unfortunately, it is very complicated to treat neurodegeneration and there is no effective remedy. The rapid progression of the neurodegenerative diseases that exacerbate the burden and the concurrent absence of effective treatment strategies force the researchers to investigate more therapeutic approaches that ultimately target the causative factors of the neurodegeneration. Phytochemicals have great potential to exert their neuroprotective effects by targeting various mechanisms, such as OS, neuroinflammation, abnormal protein aggregation, neurotrophic factor deficiency, disruption in mitochondrial function, and apoptosis. Therefore, this review represents the molecular mechanisms of neuroprotection by multifunctional phytochemicals to combat age-linked neurodegenerative disorders.
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Affiliation(s)
- Md Sahab Uddin
- Department of Pharmacy, Southeast University, Dhaka, Bangladesh; Pharmakon Neuroscience Research Network, Dhaka, Bangladesh.
| | - Md Farhad Hossain
- Pharmakon Neuroscience Research Network, Dhaka, Bangladesh; Department of Physical Therapy, Graduate School of Inje University, Gimhae, South Korea
| | - Abdullah Al Mamun
- Department of Pharmacy, Southeast University, Dhaka, Bangladesh; Pharmakon Neuroscience Research Network, Dhaka, Bangladesh
| | - Muhammad Ajmal Shah
- Department of Pharmacognosy, Faculty of Pharmaceutical Sciences, Government College University, Faisalabad, Pakistan
| | - Sharifa Hasana
- Department of Pharmacy, Southeast University, Dhaka, Bangladesh
| | | | - Md Shahid Sarwar
- Department of Pharmacy, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Rasha A Mansouri
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ghulam Md Ashraf
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia; Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Abdur Rauf
- Department of Chemistry, University of Swabi, Swabi, Anbar, Khyber Pakhtunkhwa, Pakistan
| | - Mohamed M Abdel-Daim
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - May N Bin-Jumah
- Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh 11474, Saudi Arabia
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16
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Kepka A, Ochocinska A, Borzym-Kluczyk M, Skorupa E, Stasiewicz-Jarocka B, Chojnowska S, Waszkiewicz N. Preventive Role of L-Carnitine and Balanced Diet in Alzheimer's Disease. Nutrients 2020; 12:E1987. [PMID: 32635400 PMCID: PMC7400709 DOI: 10.3390/nu12071987] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 06/25/2020] [Accepted: 06/29/2020] [Indexed: 02/06/2023] Open
Abstract
The prevention or alleviation of neurodegenerative diseases, including Alzheimer's disease (AD), is a challenge for contemporary health services. The aim of this study was to review the literature on the prevention or alleviation of AD by introducing an appropriate carnitine-rich diet, dietary carnitine supplements and the MIND (Mediterranean-DASH Intervention for Neurodegenerative Delay) diet, which contains elements of the Mediterranean diet and the Dietary Approaches to Stop Hypertension (DASH) diet. L-carnitine (LC) plays a crucial role in the energetic metabolism of the cell. A properly balanced diet contains a substantial amount of LC as well as essential amino acids and microelements taking part in endogenous carnitine synthesis. In healthy people, carnitine biosynthesis is sufficient to prevent the symptoms of carnitine deficiency. In persons with dysfunction of mitochondria, e.g., with AD connected with extensive degeneration of the brain structures, there are often serious disturbances in the functioning of the whole organism. The Mediterranean diet is characterized by a high consumption of fruits and vegetables, cereals, nuts, olive oil, and seeds as the major source of fats, moderate consumption of fish and poultry, low to moderate consumption of dairy products and alcohol, and low intake of red and processed meat. The introduction of foodstuffs rich in carnitine and the MIND diet or carnitine supplementation of the AD patients may improve their functioning in everyday life.
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Affiliation(s)
- Alina Kepka
- Department of Biochemistry, Radioimmunology and Experimental Medicine, The Children’s Memorial Health Institute, 04-730 Warsaw, Poland;
| | - Agnieszka Ochocinska
- Department of Biochemistry, Radioimmunology and Experimental Medicine, The Children’s Memorial Health Institute, 04-730 Warsaw, Poland;
| | - Małgorzata Borzym-Kluczyk
- Department of Pharmaceutical Biochemistry, Medical University of Bialystok, 15-089 Bialystok, Poland;
| | - Ewa Skorupa
- Department of Biochemistry, Radioimmunology and Experimental Medicine, The Children’s Memorial Health Institute, 04-730 Warsaw, Poland;
| | | | - Sylwia Chojnowska
- Faculty of Health Sciences, Lomza State University of Applied Sciences, 18-400 Lomza, Poland;
| | - Napoleon Waszkiewicz
- Department of Psychiatry, Medical University of Bialystok, 15-089 Bialystok, Poland;
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17
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The role of acetyl-L-carnitine (LAC) in the treatment of mental disorders. CURRENT PROBLEMS OF PSYCHIATRY 2020. [DOI: 10.2478/cpp-2019-0017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Introduction: Currently, there are no fully reliable biomarkers to identify individuals suffering from depression, and conventional antidepressant treatment has its limitations. The potential influence of acetyl-L-carnitine (LAC) on the treatment of mental disorders, including depressive disorders, was noted already in the 1980s.
Goal and method: The literature on the role of LAC in the treatment of mental disorders, in particular depressive disorders, was reviewed using the Google Scholar and Pub Med databases. Two lines of research were considered:
1
the role of LAC in the therapy of various mental disorders and
2
the role of LAC in the treatment of depression and dysthymia
Conclusions: Because LAC is safe to use and has a very good tolerance profile, authors have explored its role in the treatment of many neurological and psychiatric diseases. There are studies showing that LAC supplementation has a positive effect on ADHD treatment outcomes in boys diagnosed with fragile X syndrome and plays a role in the treatment of dementia. Research has also been conducted on the impact of LAC on the treatment of depressive and dysthymic disorders. Positive outcomes of such therapy have been reported. An important correlation has been observed between LAC concentrations and the severity and onset of depressive symptoms. For instance, reduced levels of LAC have been found in people with treatment-refractory depression. It has also been proposed that LAC could decrease vulnerability to depression.
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Ma Z, Lu Y, Yang F, Li S, He X, Gao Y, Zhang G, Ren E, Wang Y, Kang X. Rosmarinic acid exerts a neuroprotective effect on spinal cord injury by suppressing oxidative stress and inflammation via modulating the Nrf2/HO-1 and TLR4/NF-κB pathways. Toxicol Appl Pharmacol 2020; 397:115014. [PMID: 32320792 DOI: 10.1016/j.taap.2020.115014] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 04/14/2020] [Accepted: 04/15/2020] [Indexed: 02/08/2023]
Abstract
Spinal cord injury (SCI) is a severe central nervous system injury for which few efficacious drugs are available. Rosmarinic acid (RA), a water-soluble polyphenolic phytochemical, has antioxidant, anti-inflammatory, and anti-apoptotic properties. However, the effect of RA on SCI is unclear. We investigated the therapeutic effect and underlying mechanism of RA on SCI. Using a rat model of SCI, we showed that RA improved locomotor recovery after SCI and significantly mitigated neurological deficit, increased neuronal preservation, and reduced apoptosis. Also, RA inhibited activation of microglia and the release of TNF-α, IL-6, and IL-1β and MDA. Moreover, proteomics analyses identified the Nrf2 and NF-κB pathways as targets of RA. Pretreatment with RA increased levels of Nrf2 and HO-1 and reduced those of TLR4 and MyD88 as well as phosphorylation of IκB and subsequent nuclear translocation of NF-κB-p65. Using H2O2- and LPS-induced PC12 cells, we found that RA ameliorated the H2O2-induced decrease in viability and increase in apoptosis and oxidative injury by activating the Nrf2/HO-1 pathway. Also, LPS-induced cytotoxicity and increased apoptosis and inflammatory injury in PC-12 cells were mitigated by RA by inhibiting the TLR4/NF-κB pathway. The Nrf2 inhibitor ML385 weakened the effect of RA on oxidant stress, inflammation and apoptosis in SCI rats, and significantly increased the nuclear translocation of NF-κB. Therefore, the neuroprotective effect on SCI of RA may be due to its antioxidant and anti-inflammatory properties, which are mediated by modulation of the Nrf2/HO-1 and TLR4/NF-κB pathways. Moreover, RA activated Nrf2/HO-1, which amplified its inhibition of the NF-κB pathway.
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Affiliation(s)
- Zhanjun Ma
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730030, China; Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, Gansu 730030, China
| | - Yubao Lu
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730030, China
| | - Fengguang Yang
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730030, China
| | - Shaoping Li
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730030, China
| | - Xuegang He
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730030, China
| | - Yicheng Gao
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730030, China
| | - Guangzhi Zhang
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730030, China
| | - Enhui Ren
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730030, China
| | - Yonggang Wang
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730030, China; Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, Gansu 730030, China; The International Cooperation Base of Gansu Province for the Pain Research in Spinal Disorders, Gansu 730000, China.
| | - Xuewen Kang
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730030, China; Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, Gansu 730030, China; The International Cooperation Base of Gansu Province for the Pain Research in Spinal Disorders, Gansu 730000, China.
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19
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Baranauskaite J, Sadauskiene I, Liekis A, Kasauskas A, Lazauskas R, Zlabiene U, Masteikova R, Kopustinskiene DM, Bernatoniene J. Natural Compounds Rosmarinic Acid and Carvacrol Counteract Aluminium-Induced Oxidative Stress. Molecules 2020; 25:E1807. [PMID: 32326410 PMCID: PMC7221925 DOI: 10.3390/molecules25081807] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/10/2020] [Accepted: 04/13/2020] [Indexed: 12/11/2022] Open
Abstract
Aluminum accumulation, glutathione (GSH) and malondialdehyde (MDA) concentrations as well as catalase (CAT) and superoxide dismutase (SOD) activities were determined in erythrocytes and brain and liver homogenates of BALB/c mice treated with Al3+ (7.5 mg/kg/day (0.15 LD50) as AlCl3 (37.08 mg/kg/day), whereas HCl (30.41 mg/kg/day) was used as Cl- control, the treatments were performed for 21 days, i.p., in the presence and absence of rosmarinic acid (0.2805 mg/kg/day (0.05 LD50), 21 days, i.g.) or carvacrol (0.0405 mg/kg/day (0.05 LD50), 21 days, i.g.). The treatment with AlCl3 increased GSH concentration in erythrocytes only slightly and had no effect on brain and liver homogenates. Rosmarinic acid and carvacrol strongly increased GSH concentration in erythrocytes but decreased it in brain and liver homogenates. However, AlCl3 treatment led to Al accumulation in mice blood, brain, and liver and induced oxidative stress, assessed based on MDA concentration in the brain and liver. Both rosmarinic acid and carvacrol were able to counteract the negative Al effect by decreasing its accumulation and protecting tissues from lipid peroxidation. AlCl3 treatment increased CAT activity in mice brain and liver homogenates, whereas the administration of either rosmarinic acid or carvacrol alone or in combination with AlCl3 had no significant effect on CAT activity. SOD activity remained unchanged after all the treatments in our study. We propose that natural herbal phenolic compounds rosmarinic acid and carvacrol could be used to protect brain and liver against aluminum induced oxidative stress leading to lipid peroxidation.
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Affiliation(s)
- Juste Baranauskaite
- Department of Analytical and Toxicological Chemistry, Medical Academy, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania;
| | - Ilona Sadauskiene
- Neuroscience Institute, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania; (I.S.); (A.L.)
- Department of Biochemistry, Medical Academy, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania;
| | - Arunas Liekis
- Neuroscience Institute, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania; (I.S.); (A.L.)
| | - Arturas Kasauskas
- Department of Biochemistry, Medical Academy, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania;
| | - Robertas Lazauskas
- Institute of Physiology and Pharmacology, Medical Academy, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania;
| | - Ugne Zlabiene
- Institute of Pharmaceutical Technologies, Medical Academy, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania;
| | - Ruta Masteikova
- Department of Pharmaceutics, University of Veterinary and Pharmaceutical Sciences Brno, 61242 Brno, Czech Republic;
| | - Dalia M. Kopustinskiene
- Institute of Pharmaceutical Technologies, Medical Academy, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania;
| | - Jurga Bernatoniene
- Institute of Pharmaceutical Technologies, Medical Academy, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania;
- Department of Drug Technology and Social Pharmacy, Medical Academy, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania
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20
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Salvia officinalis, Rosmarinic and Caffeic Acids Attenuate Neuropathic Pain and Improve Function Recovery after Sciatic Nerve Chronic Constriction in Mice. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:1702378. [PMID: 31341489 PMCID: PMC6613031 DOI: 10.1155/2019/1702378] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 04/22/2019] [Accepted: 05/29/2019] [Indexed: 12/14/2022]
Abstract
The leaves of Salvia officinalis L. have a traditional reputation for the management of pain in Morocco. This study was conducted to investigate the curative effects of Salvia officinalis (SO) and its major constituents Rosmarinic (ROS) and Caffeic acids (CAF) on peripheral neuropathic pain in mice. Chronic constriction injury (CCI) was induced in mice, and neuropathic pain behaviors tests were evaluated by mechanical, chemical, thermal sensation tests and functional recovery of the sciatic nerve at different time intervals, i.e., (day 0, 1, 7, 14, and 21). Ethanolic extract of SO (100 and 200 mg/kg, p.o.), ROS (10 and 20 mg/kg, i.p.), CAF (30 and 40 mg/kg, i.p.), and CLOM (5 mg/kg, i.p., a positive control) was given for 21 days after surgery. Hematological and biochemical parameters were also measured as well as histopathological analysis. CCI produced significant development in mechanical and thermal hyperalgesia, cold allodynia, and rise in the sciatic functional index in mice. Chronic treatments with SO extract, ROS, CAF, and CLOM for 3 weeks significantly increased mechanical sensibility, cold, and thermal withdrawal latency and enhanced functional recovery of the injured nerve. The same treatments remarkably ameliorated hematological parameters and did not alter biochemical levels. The histopathological findings had revealed the protective effect of SO, ROS, and CAF against the CCI-induced damage. Our data support the use of SO in folk medicine to alleviate pain. Their main phenolic constituents could be promising antineuropathic compounds, which may be attributed to their biological activities including anti-inflammatory, antioxidant, and neuroprotective effects. SO leaves may be a good candidate to treat neuropathic pain.
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21
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Zholos AV, Moroz OF, Storozhuk MV. Curcuminoids and Novel Opportunities for the Treatment of Alzheimer's Disease: Which Molecules are Actually Effective? Curr Mol Pharmacol 2019; 12:12-26. [PMID: 30318014 DOI: 10.2174/1874467211666181012150847] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 09/30/2018] [Accepted: 10/08/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND Millions of people worldwide are suffering from Alzheimer's disease (AD), and there are only symptomatic treatments available for this disease. Thus, there is a great need to identify drugs capable of arresting or reversing AD. Constituents of the spice turmeric, in particular, curcuminoids, seem to be very promising, as evident from in vitro experiments and tests using animal models of AD. However, most of the clinical trials did not reveal any beneficial effects of curcuminoids in the treatment of AD. These controversies, including conflicting results of clinical trials, are thought to be related to bioavailability of curcuminoids, which is low unless it is enhanced by developing a special formulation. However, there is growing evidence suggesting that other reasons may be of even greater importance, but these avenues are less explored. OBJECTIVE Review relevant literature, and analyze potential reasons for the controversial results. METHODOLOGY Recent in vitro and preclinical studies; clinical trials (without a limiting period) were searched in PubMed and Google Scholar. RESULTS While recent in vitro and preclinical studies confirm the therapeutic potential of curcuminoids in the treatment of AD and cognitive dysfunctions, results of corresponding clinical trials remain rather controversial. CONCLUSION The controversial results obtained in the clinical trials may be in part due to particularities of the curcuminoid formulations other than bioavailability. Namely, it seems likely that the various formulations differ in terms of their minor turmeric constituent(s). We hypothesize that these distinctions may be of key importance for efficacy of the particular formulation in clinical trials. A testable approach addressing this hypothesis is suggested.
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Affiliation(s)
- Alexander V Zholos
- A.A. Bogomoletz Institute of Physiology, National Academy of Science of Ukraine, 4 Bogomoletz Street, Kiev 01024, Ukraine.,Taras Shevchenko National University of Kyiv, Educational and Scientific Centre "Institute of Biology and Medicine", 2 Academician Glushkov Avenue, Kiev 03022, Ukraine
| | - Olesia F Moroz
- Taras Shevchenko National University of Kyiv, Educational and Scientific Centre "Institute of Biology and Medicine", 2 Academician Glushkov Avenue, Kiev 03022, Ukraine
| | - Maksim V Storozhuk
- A.A. Bogomoletz Institute of Physiology, National Academy of Science of Ukraine, 4 Bogomoletz Street, Kiev 01024, Ukraine
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22
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Clark TM, Jones JM, Hall AG, Tabner SA, Kmiec RL. Theoretical Explanation for Reduced Body Mass Index and Obesity Rates in Cannabis Users. Cannabis Cannabinoid Res 2018; 3:259-271. [PMID: 30671538 PMCID: PMC6340377 DOI: 10.1089/can.2018.0045] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Introduction: Obesity is treatment-resistant, and is linked with a number of serious, chronic diseases. Adult obesity rates in the United States have tripled since the early 1960s. Recent reviews show that an increased ratio of omega-6 to omega-3 fatty acids contributes to obesity rates by increasing levels of the endocannabinoid signals AEA and 2-AG, overstimulating CB1R and leading to increased caloric intake, reduced metabolic rates, and weight gain. Cannabis, or THC, also stimulates CB1R and increases caloric intake during acute exposures. Goals: To establish the relationship between Cannabis use and body mass index, and to provide a theoretical explanation for this relationship. Results: The present meta-analysis reveals significantly reduced body mass index and rates of obesity in Cannabis users, in conjunction with increased caloric intake. Theoretical explanation: We provide for the first time a causative explanation for this paradox, in which rapid and long-lasting downregulation of CB1R following acute Cannabis consumption reduces energy storage and increases metabolic rates, thus reversing the impact on body mass index of elevated dietary omega-6/omega-3 ratios.
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Affiliation(s)
- Thomas M Clark
- Department of Biological Sciences, Indiana University South Bend, South Bend, Indiana
| | - Jessica M Jones
- Department of Biological Sciences, Indiana University South Bend, South Bend, Indiana
| | - Alexis G Hall
- Department of Biological Sciences, Indiana University South Bend, South Bend, Indiana
| | - Sara A Tabner
- Department of Biological Sciences, Indiana University South Bend, South Bend, Indiana
| | - Rebecca L Kmiec
- Department of Biological Sciences, Indiana University South Bend, South Bend, Indiana
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23
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Sarker MR, Franks SF. Efficacy of curcumin for age-associated cognitive decline: a narrative review of preclinical and clinical studies. GeroScience 2018; 40:73-95. [PMID: 29679204 DOI: 10.1007/s11357-018-0017-z] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 04/09/2018] [Indexed: 02/06/2023] Open
Abstract
Processes such as aberrant redox signaling and chronic low-grade systemic inflammation have been reported to modulate age-associated pathologies such as cognitive impairment. Curcumin, the primary therapeutic component of the Indian spice, Turmeric (Curcuma longa), has long been known for its strong anti-inflammatory and antioxidant activity attributable to its unique molecular structure. Recently, an interest in this polyphenol as a cognitive therapeutic for the elderly has emerged. The purpose of this paper is to critically review preclinical and clinical studies that have evaluated the efficacy of curcumin in ameliorating and preventing age-associated cognitive decline and address the translational progress of preclinical to clinical efficacy. PubMed, semantic scholar, and Google scholar searches were used for preclinical studies; and clinicaltrials.gov , the Australian and New Zealand clinical trials registry, and PubMed search were used to select relevant completed clinical studies. Results from preclinical studies consistently demonstrate curcumin and its analogues to be efficacious for various aspects of cognitive impairment and processes that contribute to age-associated cognitive impairment. Results of published clinical studies, while mixed, continue to show promise for curcumin's use as a therapeutic for cognitive decline but overall remain inconclusive at this time. Both in vitro and in vivo studies have found that curcumin can significantly decrease oxidative stress, systemic inflammation, and obstruct pathways that activate transcription factors that augment these processes. Future clinical studies would benefit from including evaluation of peripheral and cerebrospinal fluid biomarkers of dementia and behavioral markers of cognitive decline, as well as targeting the appropriate population.
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Affiliation(s)
- Marjana Rahman Sarker
- Department of Pharmacology and Neuroscience, Graduate School of Biomedical Sciences, University of North Texas Health Science Center, Fort Worth, TX, USA.
| | - Susan F Franks
- Department of Family Medicine, Texas College of Osteopathic Medicine, University of North Texas Health Science Center, Fort Worth, TX, USA
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24
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Rahbardar MG, Amin B, Mehri S, Mirnajafi-Zadeh SJ, Hosseinzadeh H. Rosmarinic acid attenuates development and existing pain in a rat model of neuropathic pain: An evidence of anti-oxidative and anti-inflammatory effects. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2018; 40:59-67. [PMID: 29496176 DOI: 10.1016/j.phymed.2018.01.001] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 11/30/2017] [Accepted: 01/06/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND We aimed to investigate the potential prophylactic and curative effects of rosmarinic acid, one of the main constituents of rosemary, on the neuropathic pain induced by chronic constriction injury (CCI) in rats. MATERIALS AND METHODS CCI was used to induce peripheral neuropathic pain. In prophylactic groups, rosmarinic acid (10, 20, and 40 mg/kg, i.p.) was administered from the day of surgery (day 0) for 14 days. In treatment group, rosmarinic acid (40 mg/kg) was given from day 5 (after the pain was established), for 7 days. The degree of mechanical allodynia, cold allodynia, and heat hyperalgesia were measured on days 0, 3, 5, 7, 10 and 14 post-surgery. The open field test was carried out to assess locomotor activity of animals. Lumbar spinal cord levels of astroglia activation marker, glial fibrillary acidic protein (GFAP), microglial activation marker, ionized calcium-binding adapter molecule 1 (Iba-1), toll-like receptor 4 (TLR-4), tumor necrosis factor alpha (TNF-α), inducible isoform of nitric oxide synthase enzyme (iNOS) and apoptotic factors were quantified via western blot on days 7 and 14. RESULTS CCI rats showed a significant mechanical allodynia, cold allodynia and thermal hyperalgesia, compared to sham ones on day 3, persisted up to day 14 post-CCI. Rosmarinic acid was able to prevent and also attenuate CCI-induced behavioral features in prophylactic as well as treatment groups, respectively. A significant increase in the levels of TNF-α, iNOS, apoptotic factors (Bax, caspases 3, 9), Iba-1, TLR-4, and GFAP was observed on both days 7 and 14, which was suppressed by 14 days administration of rosmarinic acid. CONCLUSION These findings further support the use of rosemary in traditional medicine to alleviate pain. Rosmarinic acid could be a promising compound in prophylaxis and treatment of neuropathic pain. Anti-apoptotic and anti-inflammatory effects of rosmarinic acid may have important roles in the observed antinociceptive properties.
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Affiliation(s)
| | - Bahareh Amin
- Cellular and Molecular Research Center, Department of Physiology and Pharmacology, Faculty of Medicine, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Soghra Mehri
- Pharmaceutical Research Center, Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Hossein Hosseinzadeh
- Pharmaceutical Research Center, Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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Cui HY, Zhang XJ, Yang Y, Zhang C, Zhu CH, Miao JY, Chen R. Rosmarinic acid elicits neuroprotection in ischemic stroke via Nrf2 and heme oxygenase 1 signaling. Neural Regen Res 2018; 13:2119-2128. [PMID: 30323140 PMCID: PMC6199925 DOI: 10.4103/1673-5374.241463] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Rosmarinic acid (RA) can elicit a neuroprotective effect against ischemic stroke, but the precise molecular mechanism remains poorly understood. In this study, an experimental ischemic stroke model was established in CD-1 mice (Beijing Vital River Laboratory Animal Technology, Beijing, China) by occluding the right middle cerebral artery for 1 hour and allowing reperfusion for 24 hours. After intraperitoneally injecting model mice with 10, 20, or 40 mg/kg RA, functional neurological deficits were evaluated using modified Longa scores. Subsequently, cerebral infarct volume was measured using TTC staining and ischemic brain tissue was examined for cell apoptosis with TUNEL staining. Superoxide dismutase activity and malondialdehyde levels were measured by spectrophometry. Expression of heme oxygenase-1 (HO-1), nuclear factor erythroid 2-related factor 2 (Nrf2), Bcl-2, Bax, Akt, and phospho-Ser473 Akt proteins in ischemic brain tissue was detected by western blot, while mRNA levels of Nrf2, HO-1, Bcl-2, and Bax were analyzed using real time quantitative PCR. In addition, HO-1 enzyme activity was measured spectrophotometrically. RA (20 and 40 mg/kg) greatly improved neurological function, reduced infarct volume, decreased cell apoptosis, upregulated Bcl-2 protein and mRNA expression, downregulated Bax protein and mRNA expression, increased HO-1 and Nrf2 protein and mRNA expression, increased superoxide dismutase activity, and decreased malondialdehyde levels in ischemic brain tissue of model mice. However, intraperitoneal injection of a HO-1 inhibitor (10 mg/kg zinc protoporphyrin IX) reversed the neuroprotective effects of RA on HO-1 enzyme activity and Bcl-2 and Bax protein expression. The PI3K/Akt signaling pathway inhibitor LY294002 (10 mM) inhibited Akt phosphorylation, as well as Nrf2 and HO-1 expression. Our findings suggest that RA has anti-oxidative and anti-apoptotic properties that protect against ischemic stroke by a mechanism involving upregulation of Nrf2 and HO-1 expression via the PI3K/Akt signaling pathway.
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Affiliation(s)
- Hai-Ying Cui
- Department of Neurology, Second Hospital of Hebei Medical University; Hebei Key Laboratory of Vascular Homeostasis and Hebei Collaborative Innovation Center for Cardiocerebrovascular Disease, Shijiazhuang, Hebei Province, China
| | - Xiang-Jian Zhang
- Department of Neurology, Second Hospital of Hebei Medical University; Hebei Key Laboratory of Vascular Homeostasis and Hebei Collaborative Innovation Center for Cardiocerebrovascular Disease, Shijiazhuang, Hebei Province, China
| | - Yi Yang
- Department of Neurology, Second Hospital of Hebei Medical University; Hebei Key Laboratory of Vascular Homeostasis and Hebei Collaborative Innovation Center for Cardiocerebrovascular Disease, Shijiazhuang, Hebei Province, China
| | - Cong Zhang
- Department of Neurology, Second Hospital of Hebei Medical University; Hebei Key Laboratory of Vascular Homeostasis and Hebei Collaborative Innovation Center for Cardiocerebrovascular Disease, Shijiazhuang, Hebei Province, China
| | - Chun-Hua Zhu
- Department of Neurology, Second Hospital of Hebei Medical University; Hebei Key Laboratory of Vascular Homeostasis and Hebei Collaborative Innovation Center for Cardiocerebrovascular Disease, Shijiazhuang, Hebei Province, China
| | - Jiang-Yong Miao
- Department of Neurology, Second Hospital of Hebei Medical University; Hebei Key Laboratory of Vascular Homeostasis and Hebei Collaborative Innovation Center for Cardiocerebrovascular Disease, Shijiazhuang, Hebei Province, China
| | - Rong Chen
- Department of Neurology, Second Hospital of Hebei Medical University; Hebei Key Laboratory of Vascular Homeostasis and Hebei Collaborative Innovation Center for Cardiocerebrovascular Disease, Shijiazhuang, Hebei Province, China
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Costa C, Tsatsakis A, Mamoulakis C, Teodoro M, Briguglio G, Caruso E, Tsoukalas D, Margina D, Dardiotis E, Kouretas D, Fenga C. Current evidence on the effect of dietary polyphenols intake on chronic diseases. Food Chem Toxicol 2017; 110:286-299. [DOI: 10.1016/j.fct.2017.10.023] [Citation(s) in RCA: 155] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 10/12/2017] [Accepted: 10/13/2017] [Indexed: 02/07/2023]
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Neurotrophic function of phytochemicals for neuroprotection in aging and neurodegenerative disorders: modulation of intracellular signaling and gene expression. J Neural Transm (Vienna) 2017; 124:1515-1527. [PMID: 29030688 DOI: 10.1007/s00702-017-1797-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 10/05/2017] [Indexed: 02/07/2023]
Abstract
Bioactive compounds in food and beverages have been reported to promote health and prevent age-associated decline in cognitive, motor and sensory activities, and emotional function. Phytochemicals, a ubiquitous class of plant secondary metabolites, protect neuronal cells by interaction with cellular activities, in addition to the antioxidant and anti-inflammatory function. In aging and age-associated neurodegenerative disorders, phytochemicals protect neuronal cells by neurotrophic factor-mimic activity, in addition to suppression of apoptosis signaling in mitochondria. This review presents the cellular mechanisms underlying anti-apoptotic function and neurotrophic function of phytochemicals in the brain. Phytochemicals bind to receptors of neurotrophic factors, and also receptors for γ-aminobutyric acid, acetylcholine, serotonin, and glutamate and estrogen, and activate downstream signal pathways. Phytochemicals also directly intervene intracellular signaling molecules to modify the brain function. Finally, phytochemicals enhance the endogenous biosynthesis of genes coding anti-apoptotic Bcl-2 and neurotrophic factors, such as brain-derived and glial cell line-derived neurotrophic factor. The gene induction may play a major role in the neuroprotective function of dietary compounds shown by epidemiological studies. Quantitative measurement of neurotrophic factors induced by phytochemicals in the serum, cerebrospinal fluid, and other clinical samples is proposed as a surrogate assay method to evaluate the neuroprotective potency. Development of novel neuroprotective compounds is expected among compounds chemically synthesized from the brain-permeable basic structure of phytochemicals.
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Freitas HR, Isaac AR, Malcher-Lopes R, Diaz BL, Trevenzoli IH, De Melo Reis RA. Polyunsaturated fatty acids and endocannabinoids in health and disease. Nutr Neurosci 2017; 21:695-714. [PMID: 28686542 DOI: 10.1080/1028415x.2017.1347373] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Polyunsaturated fatty acids (PUFAs) are lipid derivatives of omega-3 (docosahexaenoic acid, DHA, and eicosapentaenoic acid, EPA) or of omega-6 (arachidonic acid, ARA) synthesized from membrane phospholipids and used as a precursor for endocannabinoids (ECs). They mediate significant effects in the fine-tune adjustment of body homeostasis. Phyto- and synthetic cannabinoids also rule the daily life of billions worldwide, as they are involved in obesity, depression and drug addiction. Consequently, there is growing interest to reveal novel active compounds in this field. Cloning of cannabinoid receptors in the 90s and the identification of the endogenous mediators arachidonylethanolamide (anandamide, AEA) and 2-arachidonyglycerol (2-AG), led to the characterization of the endocannabinoid system (ECS), together with their metabolizing enzymes and membrane transporters. Today, the ECS is known to be involved in diverse functions such as appetite control, food intake, energy balance, neuroprotection, neurodegenerative diseases, stroke, mood disorders, emesis, modulation of pain, inflammatory responses, as well as in cancer therapy. Western diet as well as restriction of micronutrients and fatty acids, such as DHA, could be related to altered production of pro-inflammatory mediators (e.g. eicosanoids) and ECs, contributing to the progression of cardiovascular diseases, diabetes, obesity, depression or impairing conditions, such as Alzheimer' s disease. Here we review how diets based in PUFAs might be linked to ECS and to the maintenance of central and peripheral metabolism, brain plasticity, memory and learning, blood flow, and genesis of neural cells.
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Affiliation(s)
- Hércules Rezende Freitas
- a Laboratory of Neurochemistry, Institute of Biophysics Carlos Chagas Filho , Universidade Federal do Rio de Janeiro, Cidade Universitária , Ilha do Fundão, Rio de Janeiro , RJ 21941-902 , Brazil
| | - Alinny Rosendo Isaac
- a Laboratory of Neurochemistry, Institute of Biophysics Carlos Chagas Filho , Universidade Federal do Rio de Janeiro, Cidade Universitária , Ilha do Fundão, Rio de Janeiro , RJ 21941-902 , Brazil
| | | | - Bruno Lourenço Diaz
- c Laboratory of Inflammation, Institute of Biophysics Carlos Chagas Filho , Universidade Federal do Rio de Janeiro, Cidade Universitária , Ilha do Fundão, Rio de Janeiro , RJ 21941-902 , Brazil
| | - Isis Hara Trevenzoli
- d Laboratory of Molecular Endocrinology, Institute of Biophysics Carlos Chagas Filho , Universidade Federal do Rio de Janeiro, Cidade Universitária , Ilha do Fundão, Rio de Janeiro , RJ 21941-902 , Brazil
| | - Ricardo Augusto De Melo Reis
- a Laboratory of Neurochemistry, Institute of Biophysics Carlos Chagas Filho , Universidade Federal do Rio de Janeiro, Cidade Universitária , Ilha do Fundão, Rio de Janeiro , RJ 21941-902 , Brazil
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McBean GJ, López MG, Wallner FK. Redox-based therapeutics in neurodegenerative disease. Br J Pharmacol 2017; 174:1750-1770. [PMID: 27477685 PMCID: PMC5446580 DOI: 10.1111/bph.13551] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 06/02/2016] [Accepted: 07/01/2016] [Indexed: 12/13/2022] Open
Abstract
This review describes recent developments in the search for effective therapeutic agents that target redox homeostasis in neurodegenerative disease. The disruption to thiol redox homeostasis in Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis and multiple sclerosis is discussed, together with the experimental strategies that are aimed at preventing, or at least minimizing, oxidative damage in these diseases. Particular attention is given to the potential of increasing antioxidant capacity by targeting the Nrf2 pathway, the development of inhibitors of NADPH oxidases that are likely candidates for clinical use, together with strategies to reduce nitrosative stress and mitochondrial dysfunction. We describe the shortcomings of compounds that hinder their progression to the clinic and evaluate likely avenues for future research. LINKED ARTICLES This article is part of a themed section on Redox Biology and Oxidative Stress in Health and Disease. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v174.12/issuetoc.
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Affiliation(s)
- G J McBean
- School of Biomolecular and Biomedical Science, Conway InstituteUniversity College DublinDublinIreland
| | - M G López
- Instituto Teófilo Hernando for Drug Discovery, Department of Pharmacology, School of MedicineUniversidad Autónoma de MadridMadridSpain
| | - F K Wallner
- Redoxis ABSweden and University of SkövdeSkövdeSweden
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L-Carnitine and Acetyl-L-carnitine Roles and Neuroprotection in Developing Brain. Neurochem Res 2017; 42:1661-1675. [PMID: 28508995 DOI: 10.1007/s11064-017-2288-7] [Citation(s) in RCA: 167] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 04/27/2017] [Accepted: 04/28/2017] [Indexed: 12/30/2022]
Abstract
L-Carnitine functions to transport long chain fatty acyl-CoAs into the mitochondria for degradation by β-oxidation. Treatment with L-carnitine can ameliorate metabolic imbalances in many inborn errors of metabolism. In recent years there has been considerable interest in the therapeutic potential of L-carnitine and its acetylated derivative acetyl-L-carnitine (ALCAR) for neuroprotection in a number of disorders including hypoxia-ischemia, traumatic brain injury, Alzheimer's disease and in conditions leading to central or peripheral nervous system injury. There is compelling evidence from preclinical studies that L-carnitine and ALCAR can improve energy status, decrease oxidative stress and prevent subsequent cell death in models of adult, neonatal and pediatric brain injury. ALCAR can provide an acetyl moiety that can be oxidized for energy, used as a precursor for acetylcholine, or incorporated into glutamate, glutamine and GABA, or into lipids for myelination and cell growth. Administration of ALCAR after brain injury in rat pups improved long-term functional outcomes, including memory. Additional studies are needed to better explore the potential of L-carnitine and ALCAR for protection of developing brain as there is an urgent need for therapies that can improve outcome after neonatal and pediatric brain injury.
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Ghasemzadeh Rahbardar M, Amin B, Mehri S, Mirnajafi-Zadeh SJ, Hosseinzadeh H. Anti-inflammatory effects of ethanolic extract of Rosmarinus officinalis L. and rosmarinic acid in a rat model of neuropathic pain. Biomed Pharmacother 2017; 86:441-449. [PMID: 28012923 DOI: 10.1016/j.biopha.2016.12.049] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 11/27/2016] [Accepted: 12/12/2016] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Rosemary, Rosmarinus (R.) officinalis L. is a well-known plant with several useful properties such as analgesic, anti-inflammatory and anti-neurodegenerative. It has been used in folk medicine to alleviate rheumatic pain, stomachache and dysmenorrhea. Rosemary has several constituents such as rosmarinic acid which can be responsible for therapeutic properties been noted with rosemary. The aim of this study was to investigate the potential anti-inflammatory effects of R. officinalis and rosmarinic acid in a rat model of sciatic nerve chronic constriction injury (CCI)-induced neuropathic pain to verify usage of rosemary in folk medicine. METHODS Rats underwent CCI, were treated with either normal saline, ethanolic extract of aerial parts of R. officinalis (400mg/kg, i.p.) or rosmarinic acid (40mg/kg, i.p.) from the day of surgery (day 0) for 14days. The anti-inflammatory effects of R. officinalis extract and rosmarinic acid were evaluated by assessing the levels of some spinal inflammatory markers including cyclooxygenase-2 (COX2), prostaglandin E2 (PGE-2), interleukin 1 beta (IL-1β), matrix metallopeptidase 2 (MMP2) through western blotting and nitric oxide (NO) production via Griess reaction on days 7 and 14 post-surgery. RESULTS CCI rats exhibited a marked expression in the levels of inflammatory markers (COX2, PGE-2, IL-1β, MMP2 and NO) on both days 7 (p<0.001) and 14 (p<0.001). Rosmarinic acid and ethanolic extract of R. officinalis were able to decrease amounts of mentioned inflammatory markers on both days 7 (p<0.001) and 14 (p<0.001). CONCLUSION Our data support the traditional use of R. officinalis as an effective remedy for pain relief and inflammatory disorders. It also suggests that the ethanolic extract of R. officinalis and rosmarinic acid through modulating neuro-inflammation might be potential candidates in treating neuropathic pain and different neurological disorders associated with inflammation.
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Affiliation(s)
| | - Bahareh Amin
- Cellular and Molecular Research Center, Department of Physiology and Pharmacology, Faculty of Medicine, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Soghra Mehri
- Pharmaceutical Research Center, Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Javad Mirnajafi-Zadeh
- Department of Physiology, School of Medical Sciences, Tarbiat Modares University, PO Box: 14115-331, Tehran, Iran.
| | - Hossein Hosseinzadeh
- Pharmaceutical Research Center, Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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Scheff SW, Ansari MA. Natural Compounds as a Therapeutic Intervention following Traumatic Brain Injury: The Role of Phytochemicals. J Neurotrauma 2016; 34:1491-1510. [PMID: 27846772 DOI: 10.1089/neu.2016.4718] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
There has been a tremendous focus on the discovery and development of neuroprotective agents that might have clinical relevance following traumatic brain injury (TBI). This type of brain injury is very complex and is divided into two major components. The first component, a primary injury, occurs at the time of impact and is the result of the mechanical insult itself. This primary injury is thought to be irreversible and resistant to most treatments. A second component or secondary brain injury, is defined as cellular damage that is not immediately obvious after trauma, but that develops after a delay of minutes, hours, or even days. This injury appears to be amenable to treatment. Because of the complexity of the secondary injury, any type of therapeutic intervention needs to be multi-faceted and have the ability to simultaneously modulate different cellular changes. Because of diverse pharmaceutical interactions, combinations of different drugs do not work well in concert and result in adverse physiological conditions. Research has begun to investigate the possibility of using natural compounds as a therapeutic intervention following TBI. These compounds normally have very low toxicity and have reduced interactions with other pharmaceuticals. In addition, many natural compounds have the potential to target numerous different components of the secondary injury. Here, we review 33 different plant-derived natural compounds, phytochemicals, which have been investigated in experimental animal models of TBI. Some of these phytochemicals appear to have potential as possible therapeutic interventions to offset key components of the secondary injury cascade. However, not all studies have used the same scientific rigor, and one should be cautious in the interpretation of studies using naturally occurring phytochemical in TBI research.
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Affiliation(s)
- Stephen W Scheff
- Sanders-Brown Center on Aging, University of Kentucky , Lexington, Kentucky
| | - Mubeen A Ansari
- Sanders-Brown Center on Aging, University of Kentucky , Lexington, Kentucky
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Lee J, Torosyan N, Silverman DH. Examining the impact of grape consumption on brain metabolism and cognitive function in patients with mild decline in cognition: A double-blinded placebo controlled pilot study. Exp Gerontol 2016; 87:121-128. [PMID: 27856335 DOI: 10.1016/j.exger.2016.10.004] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 10/09/2016] [Accepted: 10/13/2016] [Indexed: 11/15/2022]
Abstract
BACKGROUND Natural compounds in grapes such as resveratrol are known for their antioxidant and anti-inflammatory properties. Some studies have shown a potential role for grapes or wine in slowing cognitive decline and other effects of aging. However, well-controlled experimental data obtained in human subjects are still in need of further development. Here we aimed to systematically assess effects of grapes on regional cerebral metabolism. METHODS Ten subjects with mild decline in cognition (mean, 72.2±4.7years; 50% female) were included in this analysis. Participants were randomized into an active grape formulation arm or a placebo arm which consumed a formulation free of polyphenols for six months. Cognitive performance was measured through neuropsychological assessments performed at baseline and 6months after initiation of therapy. Changes in brain metabolism occurring with each therapy regimen were assessed by brain PET scans with the radiotracer [F-18] fluorodeoxyglucose (FDG), obtained during initial evaluation and 6months later. Standardized volumes of interest (sVOI) and statistical parametric mapping (SPM) methods were applied to FDG-PET scans to identify significant regional cerebral metabolic changes. RESULTS In contrast to participants taking the active grape formulation, who displayed no significant decline in metabolism, the placebo arm underwent significant metabolic decline in sVOI's of the right posterior cingulate cortex (p=0.01), and left superior posterolateral temporal cortex (p=0.04). SPM analyses also found significant declines in the placebo group, particularly in left prefrontal, cingulate, and left superior posterolateral temporal cortex (p<0.01) with stable brain metabolism in the active formulation arm. No significant differences were seen in scores on the neuropsychological battery of tests between the two groups. However, metabolism in right superior parietal cortex and left inferior anterior temporal cortex was correlated with improvements in attention/working memory, as measured with WAIS-III Digital Span within the active formulation group (r=-0.69, p=0.04). CONCLUSIONS The placebo arm had declines in regions of the brain known to be significantly affected in the early stages of Alzheimer's disease, while the active formulation group was spared such decline. This suggests a protective effect of grapes against early pathologic metabolic decline.
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Affiliation(s)
- Jooyeon Lee
- Ahmanson Translational Imaging Division, Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at the University of California Los Angeles, USA.
| | - Nare Torosyan
- Ahmanson Translational Imaging Division, Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at the University of California Los Angeles, USA.
| | - Daniel H Silverman
- Ahmanson Translational Imaging Division, Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at the University of California Los Angeles, USA.
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Wang J, Song Y, Gao M, Bai X, Chen Z. Neuroprotective Effect of Several Phytochemicals and Its Potential Application in the Prevention of Neurodegenerative Diseases. Geriatrics (Basel) 2016; 1:geriatrics1040029. [PMID: 31022822 PMCID: PMC6371135 DOI: 10.3390/geriatrics1040029] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 10/16/2016] [Accepted: 11/08/2016] [Indexed: 12/18/2022] Open
Abstract
The detrimental effects of oxidative stress and chronic neuroinflammation on neuronal cell death have been implicated in the pathogenesis of neurodegenerative disorders such as Alzheimer's disease (AD) and Parkinson's disease (PD). The nutritional neuroscience is quickly growing, and phytochemicals or phytobioactive compounds such as curcumin, resveratrol, propolis, ginsenoside, and ω-3 polyunsaturated fatty acids (PUFAs) have been extensively applied to potential therapeutic purposes for numerous neurodegenerative diseases for their anti-oxidative and anti-inflammatory effects. However, their administration as food supplements in the daily diet of the elderly is normally a voluntary and less-organized behavior, indicating the uncertainty of therapeutic effects in this sporadic population; specifically, the effective physiological dosages and the real positive effects in preserving brain health have not yet been fully elucidated. In this review, we collect several lines of evidence on these compounds, which constitute a major type of nutraceuticals and are widely integrated into the daily anti-aging caring of elderly patients, and discuss the underlying anti-oxidative and anti-inflammatory mechanisms of these phytochemicals. In conclusion, we highlight the implications of these compounds in the prevention and treatment of geriatric diseases, and of the potential supplementation procedures used as a dietary therapeutic program in clinical nursing services for patients with neurodegenerative diseases or for the elderly in certain communities, which we hope will lead to more beneficial health outcomes with respect to brain function, innate immunity, and gastrointestinal function, as well as more economic and social benefits.
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Affiliation(s)
- Jintang Wang
- Institute for Geriatrics and Rehabilitation, Beijing Geriatric Hospital, 118 Wenquan Road, Haidian District, Beijing 100095, China.
| | - Yuetao Song
- Institute for Geriatrics and Rehabilitation, Beijing Geriatric Hospital, 118 Wenquan Road, Haidian District, Beijing 100095, China.
| | - Maolong Gao
- Institute for Geriatrics and Rehabilitation, Beijing Geriatric Hospital, 118 Wenquan Road, Haidian District, Beijing 100095, China.
| | - Xujing Bai
- Institute for Geriatrics and Rehabilitation, Beijing Geriatric Hospital, 118 Wenquan Road, Haidian District, Beijing 100095, China.
| | - Zheng Chen
- Institute for Geriatrics and Rehabilitation, Beijing Geriatric Hospital, 118 Wenquan Road, Haidian District, Beijing 100095, China.
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Scheff SW, Roberts KN. Cognitive assessment of pycnogenol therapy following traumatic brain injury. Neurosci Lett 2016; 634:126-131. [PMID: 27737807 DOI: 10.1016/j.neulet.2016.10.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 09/22/2016] [Accepted: 10/08/2016] [Indexed: 12/16/2022]
Abstract
We have previously shown that pycnogenol (PYC) increases antioxidants, decreases oxidative stress, suppresses neuroinflammation and enhances synaptic plasticity following traumatic brain injury (TBI). Here, we investigate the effects of PYC on cognitive function following a controlled cortical impact (CCI). Adult Sprague-Dawley rats received a CCI injury followed by an intraperitoneal injection of PYC (50 or 100mg/kg). Seven days post trauma, subjects were evaluated in a Morris water maze (MWM) and evaluated for changes in lesion volume. Some animals were evaluated at 48h for hippocampal Fluoro-jade B (FJB) staining. The highest dose of PYC therapy significantly reduced lesion volume, with no improvement in MWM compared to vehicle controls. PYC failed to reduce the total number of FJB positive neurons in the hippocampus. These results suggest that the reduction of oxidative stress and neuroinflammation are not the key components of the secondary injury that contribute to cognitive deficits following TBI.
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Affiliation(s)
- Stephen W Scheff
- Sanders-Brown Center on Aging, University of Kentucky, Lexington, KY 40536, United States.
| | - Kelly N Roberts
- Sanders-Brown Center on Aging, University of Kentucky, Lexington, KY 40536, United States
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López A, El-Naggar T, Dueñas M, Ortega T, Estrella I, Hernández T, Gómez-Serranillos M, Palomino O, Carretero M. Influence of Processing in the Phenolic Composition and Health-Promoting Properties of Lentils (Lens culinaris
L.). J FOOD PROCESS PRES 2016. [DOI: 10.1111/jfpp.13113] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- A. López
- Departamento de Farmacología, Facultad de Farmacia; Universidad Complutense de Madrid, Plaza de Ramón y Cajal s/n; Madrid 28040 Spain
| | - T. El-Naggar
- Departamento de Farmacología, Facultad de Farmacia; Universidad Complutense de Madrid, Plaza de Ramón y Cajal s/n; Madrid 28040 Spain
- National Research Center; Cairo Egypt
| | - M. Dueñas
- Grupo de Investigación en Polifenoles, Unidad de Nutrición y Bromatología, Facultad de Farmacia; Universidad de Salamanca; Salamanca Spain
| | - T. Ortega
- Departamento de Farmacología, Facultad de Farmacia; Universidad Complutense de Madrid, Plaza de Ramón y Cajal s/n; Madrid 28040 Spain
| | - I. Estrella
- Instituto de Ciencia y Tecnología de Alimentos y Nutrición (CSIC); Madrid Spain
| | - T. Hernández
- Instituto de Ciencia y Tecnología de Alimentos y Nutrición (CSIC); Madrid Spain
| | - M.P. Gómez-Serranillos
- Departamento de Farmacología, Facultad de Farmacia; Universidad Complutense de Madrid, Plaza de Ramón y Cajal s/n; Madrid 28040 Spain
| | - O.M. Palomino
- Departamento de Farmacología, Facultad de Farmacia; Universidad Complutense de Madrid, Plaza de Ramón y Cajal s/n; Madrid 28040 Spain
| | - M.E. Carretero
- Departamento de Farmacología, Facultad de Farmacia; Universidad Complutense de Madrid, Plaza de Ramón y Cajal s/n; Madrid 28040 Spain
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Grigoletto J, Oliveira CVD, Grauncke ACB, Souza TLD, Souto NS, Freitas MLD, Furian AF, Santos ARS, Oliveira MS. Rosmarinic acid is anticonvulsant against seizures induced by pentylenetetrazol and pilocarpine in mice. Epilepsy Behav 2016; 62:27-34. [PMID: 27448240 DOI: 10.1016/j.yebeh.2016.06.037] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 06/26/2016] [Accepted: 06/27/2016] [Indexed: 01/01/2023]
Abstract
Epilepsy is a chronic neurological disease characterized by spontaneous recurrent seizures (SRS). Current anticonvulsant drugs are ineffective in nearly one-third of patients and may cause significant adverse effects. Rosmarinic acid is a naturally occurring substance which displays several biological effects including antioxidant and neuroprotective activity. Since oxidative stress and excitotoxicity play a role in the pathophysiology of seizures, we aimed the present study to test the hypothesis that rosmarinic acid displays anticonvulsant and disease-modifying effects. Female C57BL/6 mice received rosmarinic acid (0, 3, 10, or 30mg/kg; p.o.) 60min before the injection of pentylenetetrazol (PTZ, 60mg/kg; i.p.) or pilocarpine (300mg/kg, i.p.). Myoclonic and generalized tonic-clonic seizure latencies and generalized seizure duration were analyzed by behavioral and electroencephalographic (EEG) methods. The effect of acute administration of rosmarinic acid on mice behavior in the open-field, object recognition, rotarod, and forced swim tests was also evaluated. In an independent set of experiments, we evaluated the effect of rosmarinic acid (3 or 30mg/kg, p.o. for 14days) on the development of SRS and behavioral comorbidities in the pilocarpine post-status epilepticus (SE) model of epilepsy. Rosmarinic acid dose-dependently (peak effect at 30mg/kg) increased the latency to myoclonic jerks and generalized seizures in the PTZ model and increased the latency to myoclonic jerks induced by pilocarpine. Rosmarinic acid (30mg/kg) increased the number of crossings, the time at the center of the open field, and the immobility time in the forced swim test. In the chronic epilepsy model, treatment with rosmarinic acid did not prevent the appearance of SRS or behavioral comorbidities. In summary, rosmarinic acid displayed acute anticonvulsant-like activity against seizures induced by PTZ or pilocarpine in mice, but further studies are needed to determine its epilepsy-modifying potential.
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Affiliation(s)
- Jéssica Grigoletto
- Graduate Program in Pharmacology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | | | | | - Thaíze Lopes de Souza
- Graduate Program in Pharmacology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Naieli Schiefelbein Souto
- Graduate Program in Food and Science Technology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | | | - Ana Flávia Furian
- Graduate Program in Pharmacology, Federal University of Santa Maria, Santa Maria, RS, Brazil; Graduate Program in Food and Science Technology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Adair Roberto Soares Santos
- Graduate Program in Pharmacology, Federal University of Santa Maria, Santa Maria, RS, Brazil; Laboratory of Neurobiology of Pain and Inflammation, Department of Physiological Sciences, Center of Biological Sciences, Federal University of Santa Catarina, Trindade, Florianopolis 88040-900, SC, Brazil
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Neuroprotection comparison of chlorogenic acid and its metabolites against mechanistically distinct cell death-inducing agents in cultured cerebellar granule neurons. Brain Res 2016; 1648:69-80. [PMID: 27444557 DOI: 10.1016/j.brainres.2016.07.028] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 07/14/2016] [Accepted: 07/16/2016] [Indexed: 01/23/2023]
Abstract
While the number of patients diagnosed with neurodegenerative disorders like Alzheimer's disease, amyotrophic lateral sclerosis, and Parkinson's disease is increasing, there are currently no effective treatments that significantly limit the neuronal cell death underlying these diseases. Chlorogenic acid (CGA), a polyphenolic compound found in high concentration in coffee, is known to possess antioxidant and free radical scavenging activity. In this study, we investigated the neuroprotective effects of CGA and its major metabolites in primary cultures of rat cerebellar granule neurons. We show that CGA and caffeic acid displayed a dramatic protective effect against the nitric oxide donor, sodium nitroprusside. In marked contrast, ferulic acid and quinic acid had no protective effect against this nitrosative stress. While CGA and quinic acid had no protective effect against glutamate-induced cell death, caffeic acid and ferulic acid significantly protected neurons from excitotoxicity. Finally, caffeic acid was the only compound to display significant protective activity against hydrogen peroxide, proteasome inhibition, caspase-dependent intrinsic apoptosis, and endoplasmic reticulum stress. These results indicate that caffeic acid displays a much broader profile of neuroprotection against a diverse range of stressors than its parent polyphenol, CGA, or the other major metabolites, ferulic acid and quinic acid. We conclude that caffeic acid is a promising candidate for testing in pre-clinical models of neurodegeneration.
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Srivastava P, Yadav RS. Efficacy of Natural Compounds in Neurodegenerative Disorders. ADVANCES IN NEUROBIOLOGY 2016; 12:107-123. [PMID: 27651251 DOI: 10.1007/978-3-319-28383-8_7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Neurodegenerative disorders represent clusters of serious diseases that results in progressive deterioration of normal structure and physiology of central nervous system. Pathophysiology of Alzheimer's, Parkinson's or other neurodegenerative disorders involves multifaceted permutation of genetic and environmental factors. Combinations of lifestyle modification linked with environmental factor jointly or alone represent the largest share of cases of these disorders. Etiology of such neuronal degeneration involves manifestation of toxic reaction in the form of functional anomalies leading to dysfunction of the ubiquitin-proteasome system, activated inflammatory cascade, compromised neuronal survival pathway, mitochondrial dysfunction and finally neuronal apoptosis/necrosis and cell death. Furthermore, evidences from various studies exhibited role of oxidative stress and compromised anti-oxidant defense system as one of the prime factors associated with activation of various signal transduction pathways that would ultimately lead to the formation of amyloid beta or alpha synuclein in the brain. Keeping in view of complex etiology and pathophysiology along with a miniscule of available treatment options associated with these neurodegenerative disorders, the role of natural agents and herbal extracts as therapeutic alternatives alone or in combination with synthetic drugs could not be ruled out. In the same context the present chapter has been aimed to investigate the role of selected natural plants like Withania somnifera, Bacopa monnieri, Curcuma longa, Centella asiatica, Ocimum sanctum, Nardostachys jatamansi and Emblica officinalis in various neurodegenerative disorders and explore their targets to ameliorate neurotoxicity in various experimental models. The rationale for selection of these plants was based on their strong anti-inflammatory and anti-oxidant potential and large body of evidence that suggest their efficacy in preclinical as well as in clinical studies. Active constituents if these herbals might play an important role in preserving the integrity of various neurotransmitters and their receptor in the brain influencing its functions at the molecular level.
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Affiliation(s)
- Pranay Srivastava
- Developmental Toxicology Division, Indian Institute of Toxicology Research, 80, MG Marg, Lucknow, 226 001, UP, India
| | - Rajesh Singh Yadav
- Department of Criminology and Forensic Science, School of Applied Sciences, Dr. Harisingh Gour Central University, Sagar, 470 003, MP, India.
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Pistollato F, Cano SS, Elio I, Vergara MM, Giampieri F, Battino M. The Use of Neuroimaging to Assess Associations Among Diet, Nutrients, Metabolic Syndrome, and Alzheimer’s Disease. J Alzheimers Dis 2015; 48:303-18. [DOI: 10.3233/jad-150301] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Francesca Pistollato
- Centre for Nutrition and Health, Universidad Europea del Atlántico (UEA), Santander, Spain
| | - Sandra Sumalla Cano
- Centre for Nutrition and Health, Universidad Europea del Atlántico (UEA), Santander, Spain
- Universidad Internacional Iberoamericana (UNINI), Campeche, Mexico
- Fundación Universitaria Iberoamericana, (FUNIBER), Barcelona, Spain
| | - Iñaki Elio
- Centre for Nutrition and Health, Universidad Europea del Atlántico (UEA), Santander, Spain
- Universidad Internacional Iberoamericana (UNINI), Campeche, Mexico
- Fundación Universitaria Iberoamericana, (FUNIBER), Barcelona, Spain
| | - Manuel Masias Vergara
- Centre for Nutrition and Health, Universidad Europea del Atlántico (UEA), Santander, Spain
- Universidad Internacional Iberoamericana (UNINI), Puerto Rico, USA
| | - Francesca Giampieri
- Centre for Nutrition and Health, Universidad Europea del Atlántico (UEA), Santander, Spain
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche, Sez. Biochimica, Università Politecnica delle Marche, Ancona, Italy
| | - Maurizio Battino
- Centre for Nutrition and Health, Universidad Europea del Atlántico (UEA), Santander, Spain
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche, Sez. Biochimica, Università Politecnica delle Marche, Ancona, Italy
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Azzolini M, Mattarei A, La Spina M, Marotta E, Zoratti M, Paradisi C, Biasutto L. Synthesis and Evaluation as Prodrugs of Hydrophilic Carbamate Ester Analogues of Resveratrol. Mol Pharm 2015; 12:3441-54. [DOI: 10.1021/acs.molpharmaceut.5b00464] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Michele Azzolini
- Department of Biomedical Sciences, University of Padova, viale G. Colombo
3, 35131 Padova, Italy
- NÓOS Srl, via Campello sul Clitunno 34, 00181 Roma, Italy
| | - Andrea Mattarei
- Department
of Chemical Sciences, University of Padova, via Marzolo 1, 35121 Padova, Italy
| | - Martina La Spina
- Department of Biomedical Sciences, University of Padova, viale G. Colombo
3, 35131 Padova, Italy
| | - Ester Marotta
- Department
of Chemical Sciences, University of Padova, via Marzolo 1, 35121 Padova, Italy
| | - Mario Zoratti
- Department of Biomedical Sciences, University of Padova, viale G. Colombo
3, 35131 Padova, Italy
- CNR Neuroscience Institute, viale G. Colombo 3, 35131 Padova, Italy
| | - Cristina Paradisi
- Department
of Chemical Sciences, University of Padova, via Marzolo 1, 35121 Padova, Italy
| | - Lucia Biasutto
- Department of Biomedical Sciences, University of Padova, viale G. Colombo
3, 35131 Padova, Italy
- CNR Neuroscience Institute, viale G. Colombo 3, 35131 Padova, Italy
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Mescka CP, Guerreiro G, Hammerschmidt T, Faverzani J, de Moura Coelho D, Mandredini V, Wayhs CAY, Wajner M, Dutra-Filho CS, Vargas CR. L-Carnitine supplementation decreases DNA damage in treated MSUD patients. Mutat Res 2015; 775:43-7. [PMID: 25867118 DOI: 10.1016/j.mrfmmm.2015.03.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 03/19/2015] [Accepted: 03/20/2015] [Indexed: 10/23/2022]
Abstract
Maple syrup urine disease (MSUD) is an inherited disorder caused by severe deficient activity of the branched-chain α-keto acid dehydrogenase complex involved in the degradation pathway of branched-chain amino acids (BCAAs) and their α-ketoacid derivatives. MSUD patients generally present ketoacidosis, poor feeding, ataxia, coma, psychomotor delay, mental retardation and brain abnormalites. Treatment consists of dietary restriction of the BCAA (low protein intake) supplemented by a BCAA-free amino acid mixture. Although the mechanisms of brain damage in MSUD are poorly known, previous studies have shown that oxidative stress may be involved in the neuropathology of this disorder. In this regard, it was recently reported that MSUD patients have deficiency of l-carnitine (l-car), a compound with antioxidant properties that is used as adjuvant therapy in various inborn errors of metabolism. In this work, we investigated DNA damage determined by the alkaline comet assay in peripheral whole blood leukocytes of MSUD patients submitted to a BCAA-restricted diet supplemented or not with l-car. We observed a significant increase of DNA damage index (DI) in leukocytes from MSUD patients under BCAA-restricted diet as compared to controls and that l-car supplementation significantly decreased DNA DI levels. It was also found a positive correlation between DI and MDA content, a marker of lipid peroxidation, and an inverse correlation between DI and l-car levels. Taken together, our present results suggest a role for reactive species and the involvement of oxidative stress in DNA damage in this disorder. Since l-car reduced DNA damage, it is presumed that dietary supplementation of this compound may serve as an adjuvant therapeutic strategy for MSUD patients in addition to other therapies.
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Affiliation(s)
- Caroline Paula Mescka
- Programa de Pós-Graduação em CB:Bioquímica, UFRGS, Rua Ramiro Barcelos, 2600, 90035 000, Porto Alegre, RS, Brazil.
| | - Gilian Guerreiro
- Faculdade de Farmácia, UFRGS, Av. Ipiranga 2752, 90610-000 Porto Alegre, RS, Brazil
| | | | - Jéssica Faverzani
- Faculdade de Farmácia, UFRGS, Av. Ipiranga 2752, 90610-000 Porto Alegre, RS, Brazil
| | - Daniella de Moura Coelho
- Serviço de Genética Médica, HCPA, UFRGS, Rua Ramiro Barcelos, 2350, 90035-903 Porto Alegre, RS, Brazil
| | - Vanusa Mandredini
- Universidade Federal do Pampa, BR 472, Km 585, Caixa Postal 118, 97500 970 Uruguaiana, RS, Brazil
| | - Carlos Alberto Yasin Wayhs
- Programa de Pós-Graduação em Ciências Farmacêuticas, UFRGS, Av. Ipiranga, 2752, 90610-000 Porto Alegre, RS, Brazil
| | - Moacir Wajner
- Serviço de Genética Médica, HCPA, UFRGS, Rua Ramiro Barcelos, 2350, 90035-903 Porto Alegre, RS, Brazil; Programa de Pós-Graduação em CB:Bioquímica, UFRGS, Rua Ramiro Barcelos, 2600, 90035 000, Porto Alegre, RS, Brazil
| | - Carlos Severo Dutra-Filho
- Programa de Pós-Graduação em CB:Bioquímica, UFRGS, Rua Ramiro Barcelos, 2600, 90035 000, Porto Alegre, RS, Brazil
| | - Carmen Regla Vargas
- Faculdade de Farmácia, UFRGS, Av. Ipiranga 2752, 90610-000 Porto Alegre, RS, Brazil; Serviço de Genética Médica, HCPA, UFRGS, Rua Ramiro Barcelos, 2350, 90035-903 Porto Alegre, RS, Brazil; Programa de Pós-Graduação em CB:Bioquímica, UFRGS, Rua Ramiro Barcelos, 2600, 90035 000, Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas, UFRGS, Av. Ipiranga, 2752, 90610-000 Porto Alegre, RS, Brazil
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Ergenoglu M, Yildirim N, Yildirim AGS, Yeniel O, Erbas O, Yavasoglu A, Taskiran D, Karadadas N. Effects of Resveratrol on Ovarian Morphology, Plasma Anti-Mullerian Hormone, IGF-1 Levels, and Oxidative Stress Parameters in a Rat Model of Polycystic Ovary Syndrome. Reprod Sci 2015; 22:942-7. [PMID: 25667201 DOI: 10.1177/1933719115570900] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
OBJECTIVE To evaluate the effects of resveratrol in a rat model of polycystic ovarian syndrome (PCOS). STUDY DESIGN After PCOS model was formed by subcutaneous dihydrotestosterone pellets, rats were randomly divided into 2 groups. The first group (n = 7) was treated with 1 mL/kg/d isotonic saline and the second group (n = 7) was treated with 10 mg/kg/d resveratrol. Seven rats were taken as controls without any medication. RESULTS Our results showed (1) significant reduction in the number of antral follicle counts (P < .01); (2) significantly decreased plasma anti-Mullerian hormone and insulin-like growth factor 1 levels (P < .01 and P < .05, respectively); (3) significantly lower superoxide dismutase activity (P < .05); and (4) significantly increased glutathione peroxidase content (P < .01) following resveratrol treatment. CONCLUSION Resveratrol appears to be effective in the treatment of PCOS due to its antioxidant properties. Future clinical studies with different dosages might provide useful implementations to our practice.
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Affiliation(s)
- Mete Ergenoglu
- Department of Obstetrics and Gynecology, Ege University, Izmir, Turkey
| | - Nuri Yildirim
- Department of Obstetrics and Gynecology, Dokuz Eylul University, Izmir, Turkey Department of Basic Oncology, Institute of Oncology, Dokuz Eylul University, Izmir, Turkey
| | | | - Ozgur Yeniel
- Department of Obstetrics and Gynecology, Ege University, Izmir, Turkey
| | - Oytun Erbas
- Department of Physiology, Ege University, Izmir, Turkey
| | - Altug Yavasoglu
- Department of Histology and Embryology, Ege University, Izmir, Turkey
| | | | - Nedim Karadadas
- Department of Obstetrics and Gynecology, Ege University, Izmir, Turkey
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