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Gevrenova R, Kostadinova I, Stefanova A, Balabanova V, Zengin G, Zheleva-Dimitrova D, Momekov G. Phytochemical Profiling, Antioxidant and Cognitive-Enhancing Effect of Helichrysum italicum ssp. italicum (Roth) G. Don (Asteraceae). PLANTS (BASEL, SWITZERLAND) 2023; 12:2755. [PMID: 37570911 PMCID: PMC10420817 DOI: 10.3390/plants12152755] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 07/19/2023] [Accepted: 07/20/2023] [Indexed: 08/13/2023]
Abstract
This study aimed at the evaluation of the antioxidant and cognitive-enhancing effect of methanol-aqueous extract from Helichrysum italicum ssp. italicum aerial parts. Significant radical scavenging activity (110.33 ± 3.47 and 234.70 ± 5.21 mg TE/g for DPPH and ABTS) and reducing power (354.23 ± 17.51 and 210.24 ± 8.68 mg TE/g for CUPRAC and FRAP) were observed. The extract showed average acetylcholinesterase and low butyrylcholinesterase inhibitory potential. H. italicum extract (200 mg/kg/po) administered in combination with galantamine (3 mg/kg/po) for 12 days significantly improved the memory and learning process compared with galantamine alone in the passive avoidance test. The effect was comparable to that of Ginkgo biloba extract (100 mg/kg/po). In deep secondary metabolite annotation of the extract by UHPLC-HRMS, more than 90 hydroxybenzoic and hydroxicinnamic acid-glycosides, phenylethanoid glycosides, a series of acylquinic and caffeoylhexaric acids, methoxylated derivatives of scutellarein, quercetagetin and 6-hydroxyluteolin, and prenylated phloroglucinol-α-pyrones were reported for the first time in H. italicum. Fragmentation patterns of four subclasses of heterodimer-pyrones were proposed. In-depth profiling of the pyrones revealed 23 compounds undescribed in the literature. Pyrones and acylphloroglucinols together with acylquinic acids could account for memory improvement. The presented research advanced our knowledge of H. italicum, highlighting the species as a rich source of secondary metabolites with cognitive-enhancing potential.
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Affiliation(s)
- Reneta Gevrenova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University, 1000 Sofia, Bulgaria; (R.G.); (V.B.)
| | - Ivanka Kostadinova
- Department of Pharmacology, Pharmacotherapy, and Toxicology, Faculty of Pharmacy, Medical University, 1000 Sofia, Bulgaria (A.S.); (G.M.)
| | - Alexandra Stefanova
- Department of Pharmacology, Pharmacotherapy, and Toxicology, Faculty of Pharmacy, Medical University, 1000 Sofia, Bulgaria (A.S.); (G.M.)
| | - Vessela Balabanova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University, 1000 Sofia, Bulgaria; (R.G.); (V.B.)
| | - Gokhan Zengin
- Physiology and Biochemistry Research Laboratory, Department of Biology, Science Faculty, Selcuk University, Konya 42130, Turkey;
| | | | - Georgi Momekov
- Department of Pharmacology, Pharmacotherapy, and Toxicology, Faculty of Pharmacy, Medical University, 1000 Sofia, Bulgaria (A.S.); (G.M.)
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2
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Mudd N, Liceaga AM. Caenorhabditis elegans as an in vivo model for food bioactives: A review. Curr Res Food Sci 2022; 5:845-856. [PMID: 35619588 PMCID: PMC9126841 DOI: 10.1016/j.crfs.2022.05.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 04/19/2022] [Accepted: 05/01/2022] [Indexed: 12/01/2022] Open
Abstract
Caenorhabditis elegans (C. elegans) is being widely explored as an in vivo model to study the effects of food bioactives. These nematodes are largely advantageous over other in vivo models as they are relatively inexpensive, have a short generation time, and have a completely sequenced genome, among other advantages. C. elegans is a commonly used model to study diseases such as Alzheimer's and Parkinson's disease; however, researchers are finding they can also give insight into the health promoting effect of food-derived bioactive compounds. As consumers become more aware of the health benefits of the foods that they consume, the study of bioactive properties of foods and food constituents is becoming an important source of information. This review focuses on the advantages of using C. elegans as a model such as their short lifespans, high level of gene conservation relative to humans, and large number of progenies per reproductive cycle. They are also easily manipulated in order to perform controlled experiments on synchronous populations. Through review of recent literature, it is clear that C. elegans can be used to study a range of food derived compounds such as bioactive peptides, phenolic compounds, carbohydrates, and lipids. This review also provides information on potential challenges associated with working with this nematode. These challenges include the need for a sterile environment, potential inaccuracy when determining if the nematodes are dead, and the simplicity of the organism making it not suitable for all studies.
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Affiliation(s)
- Natalie Mudd
- Protein Chemistry and Bioactive Peptide Laboratory, Department of Food Science, College of Agriculture, Purdue University, West Lafayette, IN, 47907, USA
| | - Andrea M. Liceaga
- Protein Chemistry and Bioactive Peptide Laboratory, Department of Food Science, College of Agriculture, Purdue University, West Lafayette, IN, 47907, USA
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3
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Zhu A, Zheng F, Zhang W, Li L, Li Y, Hu H, Wu Y, Bao W, Li G, Wang Q, Li H. Oxidation and Antioxidation of Natural Products in the Model Organism Caenorhabditiselegans. Antioxidants (Basel) 2022; 11:antiox11040705. [PMID: 35453390 PMCID: PMC9029379 DOI: 10.3390/antiox11040705] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 03/30/2022] [Accepted: 03/31/2022] [Indexed: 12/15/2022] Open
Abstract
Natural products are small molecules naturally produced by multiple sources such as plants, animals, fungi, bacteria and archaea. They exert both beneficial and detrimental effects by modulating biological targets and pathways involved in oxidative stress and antioxidant response. Natural products’ oxidative or antioxidative properties are usually investigated in preclinical experimental models, including virtual computing simulations, cell and tissue cultures, rodent and nonhuman primate animal models, and human studies. Due to the renewal of the concept of experimental animals, especially the popularization of alternative 3R methods for reduction, replacement and refinement, many assessment experiments have been carried out in new alternative models. The model organism Caenorhabditis elegans has been used for medical research since Sydney Brenner revealed its genetics in 1974 and has been introduced into pharmacology and toxicology in the past two decades. The data from C. elegans have been satisfactorily correlated with traditional experimental models. In this review, we summarize the advantages of C. elegans in assessing oxidative and antioxidative properties of natural products and introduce methods to construct an oxidative damage model in C. elegans. The biomarkers and signaling pathways involved in the oxidative stress of C. elegans are summarized, as well as the oxidation and antioxidation in target organs of the muscle, nervous, digestive and reproductive systems. This review provides an overview of the oxidative and antioxidative properties of natural products based on the model organism C. elegans.
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Affiliation(s)
- An Zhu
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350108, China; (Y.W.); (W.B.)
- Correspondence: (A.Z.); (G.L.); (Q.W.); (H.L.)
| | - Fuli Zheng
- Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou 350108, China; (F.Z.); (H.H.)
| | - Wenjing Zhang
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Center for Disease Prevention and Control, Beijing 100013, China;
| | - Ludi Li
- Department of Toxicology, School of Public Health, Peking University, Beijing 100191, China; (L.L.); (Y.L.)
| | - Yingzi Li
- Department of Toxicology, School of Public Health, Peking University, Beijing 100191, China; (L.L.); (Y.L.)
| | - Hong Hu
- Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou 350108, China; (F.Z.); (H.H.)
| | - Yajiao Wu
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350108, China; (Y.W.); (W.B.)
- Department of Pathogen Biology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350108, China
| | - Wenqiang Bao
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350108, China; (Y.W.); (W.B.)
- Department of Pathogen Biology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350108, China
| | - Guojun Li
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Center for Disease Prevention and Control, Beijing 100013, China;
- School of Public Health, Capital Medical University, Beijing 100069, China
- Correspondence: (A.Z.); (G.L.); (Q.W.); (H.L.)
| | - Qi Wang
- Department of Toxicology, School of Public Health, Peking University, Beijing 100191, China; (L.L.); (Y.L.)
- Key Laboratory of State Administration of Traditional Chinese Medicine for Compatibility Toxicology, Peking University, Beijing 100191, China
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
- Correspondence: (A.Z.); (G.L.); (Q.W.); (H.L.)
| | - Huangyuan Li
- Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou 350108, China; (F.Z.); (H.H.)
- The Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350108, China
- Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350108, China
- Correspondence: (A.Z.); (G.L.); (Q.W.); (H.L.)
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4
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Ahrazem O, Diretto G, Rambla JL, Rubio-Moraga Á, Lobato-Gómez M, Frusciante S, Argandoña J, Presa S, Granell A, Gómez-Gómez L. Engineering high levels of saffron apocarotenoids in tomato. HORTICULTURE RESEARCH 2022; 9:uhac074. [PMID: 35669709 PMCID: PMC9157650 DOI: 10.1093/hr/uhac074] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 03/16/2022] [Indexed: 06/15/2023]
Abstract
Crocins and picrocrocin are high-value hydrophilic pigments produced in saffron and used commercially in the food and pharmaceutical industries. These apocarotenoids are derived from the oxidative cleavage of zeaxanthin by specific carotenoid cleavage dioxygenases. The pathway for crocins and picrocrocin biosynthesis was introduced into tomato using fruit specific and constitutive promoters and resulted in 14.48 mg/g of crocins and 2.92 mg/g of picrocrocin in the tomato DW, without compromising plant growth. The strategy involved expression of CsCCD2L to produce crocetin dialdehyde and 2,6,6-trimethyl-4-hydroxy-1-carboxaldehyde-1-cyclohexene, and of glycosyltransferases UGT709G1 and CsUGT2 for picrocrocin and crocins production, respectively. Metabolic analyses of the engineered fruits revealed picrocrocin and crocetin-(β-D-gentiobiosyl)-(β-D-glucosyl)-ester, as the predominant crocin molecule, as well as safranal, at the expense of the usual tomato carotenoids. The results showed the highest crocins content ever obtained by metabolic engineering in heterologous systems. In addition, the engineered tomatoes showed higher antioxidant capacity and were able to protect against neurological disorders in a Caenorhabditis elegans model of Alzheimer's disease. Therefore, these new developed tomatoes could be exploited as a new platform to produce economically competitive saffron apocarotenoids with health-promoting properties.
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Affiliation(s)
- Oussama Ahrazem
- Instituto Botánico, Departamento de Ciencia y Tecnología Agroforestal y Genética, Universidad de Castilla-La Mancha, Campus Universitario s/n, Albacete 02071, Spain
| | - Gianfranco Diretto
- Italian National Agency for New Technologies, Energy, and Sustainable Development (ENEA), Biotechnology laboratory, Casaccia Research Centre, 00123 Rome, Italy
| | - José Luis Rambla
- Departamento de Ciencias Agrarias y del Medio Natural, Universitat Jaume I, 12006 Castellón de la Plana, Spain
| | - Ángela Rubio-Moraga
- Instituto Botánico, Departamento de Ciencia y Tecnología Agroforestal y Genética, Universidad de Castilla-La Mancha, Campus Universitario s/n, Albacete 02071, Spain
| | - María Lobato-Gómez
- Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones Científicas-Universidad Politécnica de València, Valencia 46022, Spain
| | - Sarah Frusciante
- Italian National Agency for New Technologies, Energy, and Sustainable Development (ENEA), Biotechnology laboratory, Casaccia Research Centre, 00123 Rome, Italy
| | - Javier Argandoña
- Instituto Botánico, Departamento de Ciencia y Tecnología Agroforestal y Genética, Universidad de Castilla-La Mancha, Campus Universitario s/n, Albacete 02071, Spain
| | - Silvia Presa
- Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones Científicas-Universidad Politécnica de València, Valencia 46022, Spain
| | - Antonio Granell
- Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones Científicas-Universidad Politécnica de València, Valencia 46022, Spain
| | - Lourdes Gómez-Gómez
- Instituto Botánico, Departamento de Ciencia y Tecnología Agroforestal y Genética, Universidad de Castilla-La Mancha, Campus Universitario s/n, Albacete 02071, Spain
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5
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Gan J, Zhang X, Ma C, Sun L, Feng Y, He Z, Zhang H. Purification of polyphenols from Phyllanthus emblica L. pomace using macroporous resins: Antioxidant activity and potential anti-Alzheimer's effects. J Food Sci 2022; 87:1244-1256. [PMID: 35122250 DOI: 10.1111/1750-3841.16028] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 11/15/2021] [Accepted: 12/10/2021] [Indexed: 11/28/2022]
Abstract
Phyllanthus emblica L. pomace is a waste residue obtained following juicing that contains many polyphenols. In this study, NKA-II resin was selected as the optimal macroporous resin for separation and employed to separate the crude polyphenol extract of P. emblica pomace. The separation conditions were optimized, and the polyphenol content, polyphenol components, antioxidant activity, and potential anti-Alzheimer's effects of the extract were measured before and after purification. Results showed that the polyphenol content of the purified extract was 656.85 mg/g, which was 2.1 times higher than that of the nonpurified form. Further, the polyphenol components of the pomace, which was like that of the fruit, did not vary after purification. The antioxidant activity of the purified extract was also significantly improved. Moreover, purified extract significantly reduced the paralysis rate of the transgenic Caenorhabditis elegans model of Alzheimer's disease, and the mechanism was related to maintenance of redox homeostasis. PRACTICAL APPLICATION: The polyphenol content and antioxidant activity of purified polyphenol from Phyllanthus emblica L. pomace extracts were significantly improved using optimal separation methods with NKA-II macroporous resin and 70% aqueous ethanol as the eluent in this study. Moreover, purified polyphenols showed potential effects in alleviating Alzheimer's disease. These results suggest that polyphenols separated from P. emblica pomace are valuable for further research and development, and the utilization rate of P. emblica fruit is improved due to the further development of P. emblica pomace.
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Affiliation(s)
- Jin Gan
- Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming, China
| | - Xin Zhang
- Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming, China
| | - Chenjing Ma
- Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming, China
| | - Long Sun
- Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming, China
| | - Ying Feng
- Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming, China
| | - Zhao He
- Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming, China
| | - Hong Zhang
- Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming, China
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6
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Caballero AB, Gamez P, Sabate R, Espargaró A. Anti-Amyloid Drug Screening Methods Using Bacterial Inclusion Bodies. Methods Mol Biol 2022; 2538:165-188. [PMID: 35951300 DOI: 10.1007/978-1-0716-2529-3_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Amyloid aggregation is linked to a number of human disorders that range from non-neurological illnesses such as type 2 diabetes to neurodegenerative diseases such as Alzheimer's and Parkinson's diseases. The formation of insoluble protein aggregates with amyloid conformation inside bacteria, namely, in bacterial inclusion bodies, offers the possibility to use bacteria as simple models to study amyloid aggregation processes and potential effects of both anti-amyloid drugs and/or pro-aggregative compounds. This chapter describes fast, simple, inexpensive, highly reproducible, and tunable in vitro and in cellulo methods that use bacterial inclusion bodies as preliminary screening tools for anti-amyloid drugs.
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Affiliation(s)
- Ana B Caballero
- NanoBIC, Department of Inorganic and Organic Chemistry, Faculty of Chemistry, University of Barcelona, Barcelona, Catalonia, Spain
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, Barcelona, Catalonia, Spain
| | - Patrick Gamez
- NanoBIC, Department of Inorganic and Organic Chemistry, Faculty of Chemistry, University of Barcelona, Barcelona, Catalonia, Spain
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, Barcelona, Catalonia, Spain
- Catalan Institution for Research and Advanced Studies, Passeig Lluís Companys 23, Barcelona, Catalonia, Spain
| | - Raimon Sabate
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, Barcelona, Catalonia, Spain
- Department of Pharmacy and Pharmaceutical Technology and Physical-Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Catalonia, Spain
| | - Alba Espargaró
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, Barcelona, Catalonia, Spain.
- Department of Pharmacy and Pharmaceutical Technology and Physical-Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Catalonia, Spain.
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7
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Navarro-Hortal MD, Romero-Márquez JM, Muñoz-Ollero P, Jiménez-Trigo V, Esteban-Muñoz A, Tutusaus K, Giampieri F, Battino M, Sánchez-González C, Rivas-García L, Llopis J, Forbes-Hernández TY, Quiles JL. Amyloid β-but not Tau-induced neurotoxicity is suppressed by Manuka honey via HSP-16.2 and SKN-1/Nrf2 pathways in an in vivo model of Alzheimer's disease. Food Funct 2022; 13:11185-11199. [DOI: 10.1039/d2fo01739c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Alzheimer's is a chronic degenerative disease of the central nervous system considered the leading cause of dementia in the world.
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Affiliation(s)
- María D. Navarro-Hortal
- Department of Physiology, Institute of Nutrition and Food Technology “José Mataix Verdú”, Biomedical Research Centre, University of Granada, Armilla, Avda. del Conocimiento s.n., 18100 Armilla, Spain
| | - Jose M. Romero-Márquez
- Department of Physiology, Institute of Nutrition and Food Technology “José Mataix Verdú”, Biomedical Research Centre, University of Granada, Armilla, Avda. del Conocimiento s.n., 18100 Armilla, Spain
| | - Pedro Muñoz-Ollero
- Department of Physiology, Institute of Nutrition and Food Technology “José Mataix Verdú”, Biomedical Research Centre, University of Granada, Armilla, Avda. del Conocimiento s.n., 18100 Armilla, Spain
| | - Victoria Jiménez-Trigo
- Department of Physiology, Institute of Nutrition and Food Technology “José Mataix Verdú”, Biomedical Research Centre, University of Granada, Armilla, Avda. del Conocimiento s.n., 18100 Armilla, Spain
| | | | - Kilian Tutusaus
- Research Group on Foods, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Isabel Torres, 21, 39011 Santander, Spain
- Universidad Internacional Iberoamericana, 24560 Campeche, Mexico
| | - Francesca Giampieri
- Research Group on Foods, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Isabel Torres, 21, 39011 Santander, Spain
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Maurizio Battino
- Research Group on Foods, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Isabel Torres, 21, 39011 Santander, Spain
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona, 60131, Italy
- International Joint Research Laboratory of Intelligent Agriculture and Agri-products Processing, Jiangsu University, Zhenjiang, China
| | - Cristina Sánchez-González
- Department of Physiology, Institute of Nutrition and Food Technology “José Mataix Verdú”, Biomedical Research Centre, University of Granada, Armilla, Avda. del Conocimiento s.n., 18100 Armilla, Spain
- Sport and Health Research Centre, University of Granada, C/.Menéndez Pelayo 32, 18016 Armilla, Granada, Spain
| | - Lorenzo Rivas-García
- Department of Physiology, Institute of Nutrition and Food Technology “José Mataix Verdú”, Biomedical Research Centre, University of Granada, Armilla, Avda. del Conocimiento s.n., 18100 Armilla, Spain
- Sport and Health Research Centre, University of Granada, C/.Menéndez Pelayo 32, 18016 Armilla, Granada, Spain
| | - Juan Llopis
- Department of Physiology, Institute of Nutrition and Food Technology “José Mataix Verdú”, Biomedical Research Centre, University of Granada, Armilla, Avda. del Conocimiento s.n., 18100 Armilla, Spain
- Sport and Health Research Centre, University of Granada, C/.Menéndez Pelayo 32, 18016 Armilla, Granada, Spain
| | - Tamara Y. Forbes-Hernández
- Department of Physiology, Institute of Nutrition and Food Technology “José Mataix Verdú”, Biomedical Research Centre, University of Granada, Armilla, Avda. del Conocimiento s.n., 18100 Armilla, Spain
| | - José L. Quiles
- Department of Physiology, Institute of Nutrition and Food Technology “José Mataix Verdú”, Biomedical Research Centre, University of Granada, Armilla, Avda. del Conocimiento s.n., 18100 Armilla, Spain
- Research Group on Foods, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Isabel Torres, 21, 39011 Santander, Spain
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8
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Dorman G, Flores I, Gutiérrez C, Castaño RF, Aldecoa M, Kim L. Medicinal herbs and nutritional supplements for dementia therapy: potential therapeutic targets and clinical evidence. CNS & NEUROLOGICAL DISORDERS-DRUG TARGETS 2021; 21:26-51. [PMID: 34370647 DOI: 10.2174/1871527320666210809121230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 02/20/2021] [Accepted: 03/28/2021] [Indexed: 11/22/2022]
Abstract
Spices and herbs have been used for medicinal purposes for centuries. Also, in the last decades, the use of different nutritional supplements has been implemented to treat all kinds of diseases, including those that present an alteration in cognitive functioning. Dementia is a clinical syndrome in which a person's mental and cognitive capacities gradually decline. As the disease progresses, the person's autonomy diminishes. As there is not an effective treatment to prevent progressive deterioration in many of these pathologies, nutritional interventions have been, and still are, one of the most widely explored therapeutic possibilities. In this review, we have discussed a great number of potentially interesting plants, nutritional derivatives and probiotics for the treatment of dementia around the world. Their action mechanisms generally involve neuroprotective effects via anti-inflammatory, antioxidant, anti-apoptotic, b-amyloid and tau anti-aggregate actions; brain blood flow improvement, and effects on synaptic cholinergic and dopaminergic neurotransmission, which may optimize cognitive performance in patients with cognitive impairment. As for their efficacy in patients with cognitive impairment and/or dementias, evidence is still scarce and/or their outcomes are controversial. We consider that many of these substances have promising therapeutic properties. Therefore, the scientific community has to continue with a more complete research focused on both identifying possible action mechanisms and carrying out clinical trials, preferably randomized double-blind ones, with a greater number of patients, a long-term follow-up, dose standardization and the use of current diagnosis criteria.
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Affiliation(s)
- Guido Dorman
- Division of Neurology, Ramos Mejia Hospital. Argentina
| | - Ignacio Flores
- Neuroscience Institute, Favaloro Foundation Hospital. Argentina
| | | | | | - Mayra Aldecoa
- Division of Neurology, Ramos Mejia Hospital. Argentina
| | - Leandro Kim
- Division of Neurology, Ramos Mejia Hospital. Argentina
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9
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Varshney H, Siddique YH. Role of natural plant products against Alzheimer's disease. CNS & NEUROLOGICAL DISORDERS-DRUG TARGETS 2021; 20:904-941. [PMID: 33881973 DOI: 10.2174/1871527320666210420135437] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 12/12/2020] [Accepted: 02/09/2021] [Indexed: 01/25/2023]
Abstract
Alzheimer's disease (AD) is one of the major neurodegenerative disorder. Deposition of amyloid fibrils and tau protein are associated with various pathological symptoms. Currently limited medication is available for AD treatment. Most of the drugs are basically cholinesterase inhibitors and associated with various side effects. Natural plant products have shown potential as a therapeutic agent for the treatment of AD symptoms. Variety of secondary metabolites like flavonoids, tannins, terpenoids, alkaloids and phenols are used to reduce the progression of the disease. Plant products have less or no side effect and are easily available. The present review gives a detailed account of the potential of natural plant products against the AD symptoms.
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Affiliation(s)
- Himanshi Varshney
- Drosophila Transgenic Laboratory, Section of Genetics, Department of Zoology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
| | - Yasir Hasan Siddique
- Drosophila Transgenic Laboratory, Section of Genetics, Department of Zoology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
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10
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Anjaneyulu J, R V, Godbole A. Differential effect of Ayurvedic nootropics on C. elegans models of Parkinson's disease. J Ayurveda Integr Med 2020; 11:440-447. [PMID: 32978047 PMCID: PMC7772502 DOI: 10.1016/j.jaim.2020.07.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/23/2020] [Accepted: 07/27/2020] [Indexed: 10/27/2022] Open
Abstract
BACKGROUND Globally, there is increased incidence of Parkinson's Disease (PD), which is the second most common age-related neurodegenerative disease. The currently available PD-therapeutics provide only symptomatic relief. Thus, there is an urgent need to devise an effective and safe treatment strategy for PD. The holistic approach of Ayurveda can be a potential effective strategy for treating PD. The integration of different medicine systems, such as modern bio-medicine and Ayurveda can be an effective strategy for treatment of complex diseases, including PD. OBJECTIVE This study aimed to evaluate the neuroprotective mechanism of six Ayurvedic nootropics that are commonly used to treat PD. MATERIAL AND METHODS Six Ayurvedic herbs, namely Mucuna pruriens (MP), Bacopa monnieri (BM), Withania somnifera (WS), Centella asiatica (CA), Sida cordifolia (SC), and Celastrus paniculatus (CP), were selected after consultation with Ayurvedic scholars and physicians. The mode of action of methanolic herbal extracts was evaluated using the Caenorhabditis elegans BZ555 and NL5901 strains, which can be used to model the two main hallmarks of PD, namely degeneration of dopaminergic neurons and aggregation of α-synuclein protein. RESULTS All six herbal extracts exhibited neuroprotective effect. The extracts of BM and MP exhibited maximum protection against 1-methyl-4-phenylpyridinium iodide (MPP+ iodide)-induced dopaminergic neurodegeneration in the BZ555 strain. Furthermore, the herbal extracts, except CA extract, inhibited the aggregation of heterologously expressed human α-synuclein in the NL5901 strain. CONCLUSION Ayurvedic herbs used in the treatment of PD exhibited differential neuroprotective and protein aggregation mitigating effects in C. elegans.
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Affiliation(s)
- Jalagam Anjaneyulu
- Centre for Ayurveda Biology and Holistic Nutrition, The University of Trans-disciplinary Health Sciences and Technology (TDU)-Foundation for Revitalisation of Local Health Traditions (FRLHT), No 74/2, Jarakabande Kaval, Post: Attur, Via Yelahanka, Bangalore, Karnataka 560106, India
| | - Vidyashankar R
- Centre for Ayurveda Biology and Holistic Nutrition, The University of Trans-disciplinary Health Sciences and Technology (TDU)-Foundation for Revitalisation of Local Health Traditions (FRLHT), No 74/2, Jarakabande Kaval, Post: Attur, Via Yelahanka, Bangalore, Karnataka 560106, India
| | - Ashwini Godbole
- Centre for Ayurveda Biology and Holistic Nutrition, The University of Trans-disciplinary Health Sciences and Technology (TDU)-Foundation for Revitalisation of Local Health Traditions (FRLHT), No 74/2, Jarakabande Kaval, Post: Attur, Via Yelahanka, Bangalore, Karnataka 560106, India.
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11
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Kosenko E, Tikhonova L, Alilova G, Urios A, Montoliu C. The Erythrocytic Hypothesis of Brain Energy Crisis in Sporadic Alzheimer Disease: Possible Consequences and Supporting Evidence. J Clin Med 2020; 9:jcm9010206. [PMID: 31940879 PMCID: PMC7019250 DOI: 10.3390/jcm9010206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/09/2020] [Accepted: 01/10/2020] [Indexed: 12/24/2022] Open
Abstract
Alzheimer’s disease (AD) is a fatal form of dementia of unknown etiology. Although amyloid plaque accumulation in the brain has been the subject of intensive research in disease pathogenesis and anti-amyloid drug development; the continued failures of the clinical trials suggest that amyloids are not a key cause of AD and new approaches to AD investigation and treatment are needed. We propose a new hypothesis of AD development based on metabolic abnormalities in circulating red blood cells (RBCs) that slow down oxygen release from RBCs into brain tissue which in turn leads to hypoxia-induced brain energy crisis; loss of neurons; and progressive atrophy preceding cognitive dysfunction. This review summarizes current evidence for the erythrocytic hypothesis of AD development and provides new insights into the causes of neurodegeneration offering an innovative way to diagnose and treat this systemic disease.
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Affiliation(s)
- Elena Kosenko
- Institute of Theoretical and Experimental Biophysics of Russian Academy of Sciences, Pushchino 142290, Russia; (L.T.); (G.A.)
- Correspondence: or ; Tel.: +7-4967-73-91-68
| | - Lyudmila Tikhonova
- Institute of Theoretical and Experimental Biophysics of Russian Academy of Sciences, Pushchino 142290, Russia; (L.T.); (G.A.)
| | - Gubidat Alilova
- Institute of Theoretical and Experimental Biophysics of Russian Academy of Sciences, Pushchino 142290, Russia; (L.T.); (G.A.)
| | - Amparo Urios
- Hospital Clinico Research Foundation, INCLIVA Health Research Institute, 46010 Valencia, Spain; (A.U.); (C.M.)
| | - Carmina Montoliu
- Hospital Clinico Research Foundation, INCLIVA Health Research Institute, 46010 Valencia, Spain; (A.U.); (C.M.)
- Pathology Department, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain
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12
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Caballero AB, Espargaró A, Pont C, Busquets MA, Estelrich J, Muñoz-Torrero D, Gamez P, Sabate R. Bacterial Inclusion Bodies for Anti-Amyloid Drug Discovery: Current and Future Screening Methods. Curr Protein Pept Sci 2019; 20:563-576. [PMID: 30924417 DOI: 10.2174/1389203720666190329120007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 03/20/2019] [Accepted: 03/22/2019] [Indexed: 11/22/2022]
Abstract
Amyloid aggregation is linked to an increasing number of human disorders from nonneurological pathologies such as type-2 diabetes to neurodegenerative ones such as Alzheimer or Parkinson's diseases. Thirty-six human proteins have shown the capacity to aggregate into pathological amyloid structures. To date, it is widely accepted that amyloid folding/aggregation is a universal process present in eukaryotic and prokaryotic cells. In the last decade, several studies have unequivocally demonstrated that bacterial inclusion bodies - insoluble protein aggregates usually formed during heterologous protein overexpression in bacteria - are mainly composed of overexpressed proteins in amyloid conformation. This fact shows that amyloid-prone proteins display a similar aggregation propensity in humans and bacteria, opening the possibility to use bacteria as simple models to study amyloid aggregation process and the potential effect of both anti-amyloid drugs and pro-aggregative compounds. Under these considerations, several in vitro and in cellulo methods, which exploit the amyloid properties of bacterial inclusion bodies, have been proposed in the last few years. Since these new methods are fast, simple, inexpensive, highly reproducible, and tunable, they have aroused great interest as preliminary screening tools in the search for anti-amyloid (beta-blocker) drugs for conformational diseases. The aim of this mini-review is to compile recently developed methods aimed at tracking amyloid aggregation in bacteria, discussing their advantages and limitations, and the future potential applications of inclusion bodies in anti-amyloid drug discovery.
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Affiliation(s)
- Ana B Caballero
- Department of Inorganic and Organic Chemistry, Faculty of Chemistry, University of Barcelona, E-08028 Barcelona, Spain.,Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, E-08028 Barcelona, Spain
| | - Alba Espargaró
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, E-08028 Barcelona, Spain.,Department of Pharmacy and Pharmaceutical Technology and Physical-Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, E-08028 Barcelona, Spain
| | - Caterina Pont
- Laboratory of Pharmaceutical Chemistry (CSIC Associated Unit), Faculty of Pharmacy and Food Sciences, University of Barcelona, E-08028 Barcelona, Spain.,Institute of Biomedicine (IBUB), University of Barcelona, E-08028 Barcelona, Spain
| | - Maria Antònia Busquets
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, E-08028 Barcelona, Spain.,Department of Pharmacy and Pharmaceutical Technology and Physical-Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, E-08028 Barcelona, Spain
| | - Joan Estelrich
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, E-08028 Barcelona, Spain.,Department of Pharmacy and Pharmaceutical Technology and Physical-Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, E-08028 Barcelona, Spain
| | - Diego Muñoz-Torrero
- Laboratory of Pharmaceutical Chemistry (CSIC Associated Unit), Faculty of Pharmacy and Food Sciences, University of Barcelona, E-08028 Barcelona, Spain.,Institute of Biomedicine (IBUB), University of Barcelona, E-08028 Barcelona, Spain
| | - Patrick Gamez
- Department of Inorganic and Organic Chemistry, Faculty of Chemistry, University of Barcelona, E-08028 Barcelona, Spain.,Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, E-08028 Barcelona, Spain.,Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluís Companys 23, 08010 Barcelona, Spain
| | - Raimon Sabate
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, E-08028 Barcelona, Spain.,Department of Pharmacy and Pharmaceutical Technology and Physical-Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, E-08028 Barcelona, Spain
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13
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Singh SK, Srivastav S, Castellani RJ, Plascencia-Villa G, Perry G. Neuroprotective and Antioxidant Effect of Ginkgo biloba Extract Against AD and Other Neurological Disorders. Neurotherapeutics 2019; 16:666-674. [PMID: 31376068 PMCID: PMC6694352 DOI: 10.1007/s13311-019-00767-8] [Citation(s) in RCA: 160] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Alzheimer's disease (AD) is the most common progressive human neurodegenerative disorder affecting elderly population worldwide. Hence, prevention of AD has been a priority of AD research worldwide. Based on understanding of disease mechanism, different therapeutic strategies involving synthetic and herbal approaches are being used against AD. Among the herbal extract, Ginkgo biloba extract (GBE) is one of the most investigated herbal remedy for cognitive disorders and Alzheimer's disease (AD). Standardized extract of Ginkgo biloba is a popular dietary supplement taken by the elderly population to improve memory and age-related loss of cognitive function. Nevertheless, its efficacy in the prevention and treatment of dementia remains controversial. Specifically, the added effects of GBE in subjects already receiving "conventional" anti-dementia treatments have been to date very scarcely investigated. This review summarizes recent advancements in our understanding of the potential use of Ginkgo biloba extract in the prevention of AD including its antioxidant property. A better understanding of the mechanisms of action of GBE against AD will be important for designing therapeutic strategies, for basic understanding of the underlying neurodegenerative processes, and for a better understanding of the effectiveness and complexity of this herbal medicine.
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Affiliation(s)
- Sandeep Kumar Singh
- Indian Scientific Education and Technology Foundation, Lucknow, 226002, India.
| | - Saurabh Srivastav
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | | | | | - George Perry
- College of Sciences, The University of Texas at San Antonio, San Antonio, TX, USA.
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Du F, Zhou L, Jiao Y, Bai S, Wang L, Ma J, Fu X. Ingredients in Zijuan Pu'er Tea Extract Alleviate β-Amyloid Peptide Toxicity in a Caenorhabditis elegans Model of Alzheimer's Disease Likely through DAF-16. Molecules 2019; 24:molecules24040729. [PMID: 30781621 PMCID: PMC6412921 DOI: 10.3390/molecules24040729] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 02/01/2019] [Accepted: 02/04/2019] [Indexed: 12/13/2022] Open
Abstract
Amyloid-β, one of the hallmarks of Alzheimer's disease (AD), is toxic to neurons and can also cause brain cell death. Oxidative stress is known to play an important role in AD, and there is strong evidence that oxidative stress is associated with amyloid-β. In the present study we report the protective effect of Zijuan Pu'er tea water extract (ZTWE) and the mixture of main ingredients (+)-catechins, caffeine and procyanidin (MCCP) in ZTWE on β-amyloid-induced toxicity in transgenic Caenorhabditis elegans (C. elegans) CL4176 expressing the human Aβ1⁻42 gene. ZTWE, (+)-catechins, caffeine, procyanidin and MCCP delayed the β-amyloid-induced paralysis to different degrees. The MCCP treatment did not affect the transcript abundance of amyloid-β transgene (amy-1); however, Thioflavin T staining showed a significant decrease in Aβ accumulation compared to untreated worms. Further research using transgenic worms found that MCCP promoted the translocation of DAF-16 from cytoplasm to nucleus and increased the expression of superoxide dismutase 3 (SOD-3). In addition, MCCP decreased the reactive oxygen species (ROS) content and increased the SOD activity in CL4176 worms. In conclusion, the results suggested that MCCP had a significant protective effect on β-amyloid-induced toxicity in C. elegans by reducing β-amyloid aggregation and inducing DAF-16 nuclear translocation that could activate the downstream signal pathway and enhance resistance to oxidative stress.
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Affiliation(s)
- Fangzhou Du
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Lin Zhou
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Yan Jiao
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Shuju Bai
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Lu Wang
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Junfeng Ma
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China.
- Key Laboratory for Molecular Enzymology and Engineering, The Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Xueqi Fu
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China.
- Key Laboratory for Molecular Enzymology and Engineering, The Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China.
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15
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Shu Z, Hussain Sh A, Shahen M, Wang H, Alagawany M, Abd El-Hac ME, Ali Kalhor S, Rashid M, Ali Shar P. Pharmacological Uses of Ginkgo biloba Extracts for Cardiovascular Disease and Coronary Heart Diseases. INT J PHARMACOL 2018. [DOI: 10.3923/ijp.2019.1.9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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16
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Ghorani-Azam A, Sepahi S, Khodaverdi E, Mohajeri SA. Herbal medicine as a promising therapeutic approach for the management of vascular dementia: A systematic literature review. Phytother Res 2018; 32:1720-1728. [DOI: 10.1002/ptr.6120] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 04/24/2018] [Accepted: 04/26/2018] [Indexed: 01/10/2023]
Affiliation(s)
- Adel Ghorani-Azam
- Medical Toxicology Research Center; Mashhad University of Medical Sciences; Mashhad Iran
| | - Samaneh Sepahi
- Targeted Drug Delivery Research Center; Pharmaceutical Technology Institute, Mashhad University of Medical Sciences; Mashhad Iran
- Student Research Committee; Mashhad University of Medical Sciences; Mashhad Iran
| | - Elham Khodaverdi
- Targeted Drug Delivery Research Center; Pharmaceutical Technology Institute, Mashhad University of Medical Sciences; Mashhad Iran
- Department of pharmaceutics, School of Pharmacy; Mashhad University of Medical Sciences; Mashhad Iran
| | - Seyed Ahmad Mohajeri
- Pharmaceutical Research Center; Pharmaceutical Technology Institute, Mashhad University of Medical Sciences; Mashhad Iran
- Department of pharmacodynamics and Toxicology, School of Pharmacy; Mashhad University of Medical Sciences; Mashhad Iran
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17
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Liu S, Wu JR, Zhang D, Wang KH, Zhang B, Zhang XM, Tan D, Duan XJ, Cui YY, Liu XK. Comparative efficacy of Chinese herbal injections for treating acute cerebral infarction: a network meta-analysis of randomized controlled trials. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 18:120. [PMID: 29615027 PMCID: PMC5883592 DOI: 10.1186/s12906-018-2178-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 03/19/2018] [Indexed: 12/12/2022]
Abstract
Background Chinese herbal injections (CHIs) are prepared by extracting and purifying effective substances from herbs (or decoction pieces) using modern scientific techniques and methods. CHIs combined with aspirin + anticoagulants + dehydrant + neuroprotectant (AADN) are believed to be effective for the treatment of acute cerebral infarction (ACI). However, no randomized controlled trial (RCT) has been performed to directly compare the efficacies of different regimens of CHIs. Therefore, we performed a systematic review and network meta-analysis (NMA) to compare the efficacies of different regimens of CHIs for ACI. Methods We conducted an overall and systematic retrieval from literature databases of RCTs focused on the use of CHIs to treat ACI up to June 2016. We used the Cochrane Handbook version 5.1.0 and CONSORT statement to assess the risk of bias. The data were analyzed using STATA 13.0 and WinBUGS 1.4.3 software. Results Overall, 64 studies with 6225 participants involving 15 CHIs were included in the NMA. In terms of the markedly effective rate, Danhong (DH) + AADN had the highest likelihood of being the best treatment. In terms of the improvement of neurological impairment, Shuxuening (SXN) + AADN had the highest likelihood of being the best treatment. Considering two outcomes, injections of SXN, Yinxingdamo (YXDM), DH, Shuxuetong (SXT), HongHuaHuangSeSu (HHHSS), DengZhanXiXin (DZXX) and Shenxiong glucose (SX) plus AADN were the optimum treatment regimens for ACI, especially SXN + AADN and YXDM + AADN. Conclusions Based on the NMA, SXN, YXDM, DH, SXT, HHHSS, DZXX and SX plus AADN showed the highest probability of being the best treatment regimens. Due to the limitations of the present study, our findings should be verified by well-designed RCTs. Electronic supplementary material The online version of this article (10.1186/s12906-018-2178-9) contains supplementary material, which is available to authorized users.
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18
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An in vitro study on antimicrobial and anticancer potentiality of thyme and clove oils. RENDICONTI LINCEI-SCIENZE FISICHE E NATURALI 2018. [DOI: 10.1007/s12210-018-0672-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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19
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Chen W, Lin HR, Wei CM, Luo XH, Sun ML, Yang ZZ, Chen XY, Wang HB. Echinacoside, a phenylethanoid glycoside from Cistanche deserticola, extends lifespan of Caenorhabditis elegans and protects from Aβ-induced toxicity. Biogerontology 2017; 19:47-65. [PMID: 29185166 DOI: 10.1007/s10522-017-9738-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 11/23/2017] [Indexed: 10/18/2022]
Abstract
Cistanche deserticola has been found to exert protection against aging and age-related diseases, but mechanisms underlying its longevity effects remain largely unclear. Here, the multicellular model organism Caenorhabditis elegans was employed to identify lifespan extending and protective effects against β-amyloid (Aβ) induced toxicity by echinacoside (ECH), a phenylethanoid glycoside isolated from C. deserticola. Our results showed that ECH extends the mean lifespan of worms and increases their survival under oxidative stress. Levels of intracellular reactive oxygen species and fat accumulation were also significantly suppressed by ECH. Moreover, ECH-mediated lifespan extension was found to be dependent on mev-1, eat-2, daf-2, and daf-16, but not sir-2.1 or hsf-1 genes. Furthermore, ECH triggered DAF-16 nuclear localization and upregulated two of its downstream targets, sod-3 and hsp-16.2. In addition, ECH significantly improved the survival of CL4176 worms in response to proteotoxic stress induced by Aβ protein aggregation. Collectively, these findings suggested that reactive oxygen species scavenging, dietary restriction, and insulin/insulin-like growth factor signaling pathways could be partly involved in ECH-mediated lifespan extension. Thus, ECH may target multiple longevity mechanisms to extend lifespan and have a potency to prevent Alzheimer's disease progression.
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Affiliation(s)
- Wei Chen
- Research Center for Translational Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Hong-Ru Lin
- Research Center for Translational Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Cong-Min Wei
- Research Center for Translational Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Xiao-Hua Luo
- Research Center for Translational Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Meng-Lu Sun
- Research Center for Translational Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Zhen-Zhou Yang
- Research Center for Translational Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Xin-Yan Chen
- Research Center for Translational Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Hong-Bing Wang
- Research Center for Translational Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China.
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Gan L, Yang B, Mei H. The effect of iron dextran on the transcriptome of pig hippocampus. Genes Genomics 2016. [DOI: 10.1007/s13258-016-0469-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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21
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Zhang XG, Wang X, Zhou TT, Wu XF, Peng Y, Zhang WQ, Li S, Zhao J. Scorpion Venom Heat-Resistant Peptide Protects Transgenic Caenorhabditis elegans from β-Amyloid Toxicity. Front Pharmacol 2016; 7:227. [PMID: 27507947 PMCID: PMC4960250 DOI: 10.3389/fphar.2016.00227] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 07/13/2016] [Indexed: 12/21/2022] Open
Abstract
Scorpion venom heat-resistant peptide (SVHRP) is a component purified from Buthus martensii Karsch scorpion venom. Our previous studies found SVHRP could enhance neurogenesis and inhibit microglia-mediated neuroinflammation in vivo. Here, we use the transgenic CL4176, CL2006, and CL2355 strains of Caenorhabditis elegans which express the human Aβ1-42 to investigate the effects and the possible mechanisms of SVHRP mediated protection against Aβ toxicity in vivo. The results showed that SVHRP-fed worms displayed remarkably decreased paralysis, less abundant toxic Aβ oligomers, reduced Aβ plaque deposition with respect to untreated animals. SVHRP also suppressed neuronal Aβ expression-induced defects in chemotaxis behavior and attenuated levels of ROS in the transgenic C. elegans. Taken together, these results suggest SVHRP could protect against Aβ-induced toxicity in C. elegans. Further studies need to be conducted in murine models and humans to analyze the effectiveness of the peptide.
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Affiliation(s)
- Xiao-Gang Zhang
- Department of Physiology, Dalian Medical University Dalian, China
| | - Xi Wang
- Department of Physiology, Dalian Medical University Dalian, China
| | - Ting-Ting Zhou
- Department of Neurology, the First Affiliated Hospital of Dalian Medical University Dalian, China
| | - Xue-Fei Wu
- Department of Physiology, Dalian Medical University Dalian, China
| | - Yan Peng
- Department of Physiology, Dalian Medical University Dalian, China
| | - Wan-Qin Zhang
- Department of Physiology, Dalian Medical University Dalian, China
| | - Shao Li
- Department of Physiology, Dalian Medical University Dalian, China
| | - Jie Zhao
- Department of Physiology, Dalian Medical UniversityDalian, China; Liaoning Engineering Technology Centre of Target-based Nature Products for Prevention and Treatment of Ageing-related NeurodegenerationDalian, China
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Xiang Y, Zhang J, Li H, Wang Q, Xiao L, Weng H, Zhou X, Ma CW, Ma F, Hu M, Huang Z. Epimedium Polysaccharide Alleviates Polyglutamine-Induced Neurotoxicity in Caenorhabditis elegans by Reducing Oxidative Stress. Rejuvenation Res 2016; 20:32-41. [PMID: 27222166 DOI: 10.1089/rej.2016.1830] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Epimedium has been traditionally used to treat a variety of medical conditions, including neurological disorders. In this study, an acidic polysaccharide EbPS-A1 is isolated from Epimedium brevicornum and found to contain mainly galacturonic acid, galactose, and rhamnose but also arabinose and glucuronic acid. Using Caenorhabditis elegans models, we show that EbPS-A1 is capable of inhibiting behavioral dysfunction mediated by polyglutamine (polyQ), which is implicated in several neurodegenerative disorders such as Huntington's disease. Interestingly, EbPS-A1 does not inhibit polyQ aggregation or extend lifespan in the nematodes; it does, however, improve the survival under increased oxidative stress of both polyQ and wild-type nematodes intoxicated by paraquat. Further studies reveal that EbPS-A1 is capable of not only scavenging free radicals in vitro but also reducing reactive oxygen species levels, enhancing antioxidant enzyme activities, and decreasing lipid peroxidation product in C. elegans models. Together, these results suggest that the protective effect of Epimedium polysaccharide against polyQ-mediated neurotoxicity is likely due to its antioxidant function.
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Affiliation(s)
- Yanxia Xiang
- 1 School of Pharmaceutical Sciences, Wuhan University , Wuhan, China
- 2 Center for Bioresources & Drug Discovery and School of Biosciences & Biopharmaceutics, Guangdong Pharmaceutical University , Guangzhou, China
| | - Ju Zhang
- 1 School of Pharmaceutical Sciences, Wuhan University , Wuhan, China
- 2 Center for Bioresources & Drug Discovery and School of Biosciences & Biopharmaceutics, Guangdong Pharmaceutical University , Guangzhou, China
| | - Haifeng Li
- 1 School of Pharmaceutical Sciences, Wuhan University , Wuhan, China
- 2 Center for Bioresources & Drug Discovery and School of Biosciences & Biopharmaceutics, Guangdong Pharmaceutical University , Guangzhou, China
| | - Qiangqiang Wang
- 1 School of Pharmaceutical Sciences, Wuhan University , Wuhan, China
- 3 Research & Development Center , Infinitus (China) Company Ltd., Guangzhou, China
| | - Lingyun Xiao
- 1 School of Pharmaceutical Sciences, Wuhan University , Wuhan, China
- 3 Research & Development Center , Infinitus (China) Company Ltd., Guangzhou, China
| | - Huandi Weng
- 2 Center for Bioresources & Drug Discovery and School of Biosciences & Biopharmaceutics, Guangdong Pharmaceutical University , Guangzhou, China
- 4 Guangdong Province Key Laboratory for Biotechnology Drug Candidates, Guangdong Pharmaceutical University , Guangzhou, China
| | - Xiaobin Zhou
- 2 Center for Bioresources & Drug Discovery and School of Biosciences & Biopharmaceutics, Guangdong Pharmaceutical University , Guangzhou, China
- 4 Guangdong Province Key Laboratory for Biotechnology Drug Candidates, Guangdong Pharmaceutical University , Guangzhou, China
| | - Chung Wah Ma
- 3 Research & Development Center , Infinitus (China) Company Ltd., Guangzhou, China
| | - Fangli Ma
- 3 Research & Development Center , Infinitus (China) Company Ltd., Guangzhou, China
| | - Minghua Hu
- 3 Research & Development Center , Infinitus (China) Company Ltd., Guangzhou, China
| | - Zebo Huang
- 1 School of Pharmaceutical Sciences, Wuhan University , Wuhan, China
- 2 Center for Bioresources & Drug Discovery and School of Biosciences & Biopharmaceutics, Guangdong Pharmaceutical University , Guangzhou, China
- 4 Guangdong Province Key Laboratory for Biotechnology Drug Candidates, Guangdong Pharmaceutical University , Guangzhou, China
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Jivad N, Rabiei Z. A review study on medicinal plants used in the treatment of learning and memory impairments. Asian Pac J Trop Biomed 2014. [DOI: 10.12980/apjtb.4.2014apjtb-2014-0412] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Darras FH, Kling B, Sawatzky E, Heilmann J, Decker M. Cyclic acyl guanidines bearing carbamate moieties allow potent and dirigible cholinesterase inhibition of either acetyl- or butyrylcholinesterase. Bioorg Med Chem 2014; 22:5020-34. [DOI: 10.1016/j.bmc.2014.06.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 05/17/2014] [Accepted: 06/04/2014] [Indexed: 01/13/2023]
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Mitochondrial dysfunction: cause and consequence of Alzheimer's disease. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2014; 127:183-210. [PMID: 25149218 DOI: 10.1016/b978-0-12-394625-6.00007-6] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The etiology of common, nonfamiliar late-onset Alzheimer's disease (LOAD) is only partly understood and seems to be extremely complex including many genetic and environmental factors. The most important environmental risk factor to develop LOAD is aging itself. Aging and LOAD are considered to be strongly linked to mitochondrial dysfunction and enhanced oxidative stress. In this review, we focus on the interaction between mitochondrial dysfunction in aging especially on defects of the respiratory chain of the oxidative phosphorylation system resulting in enhanced oxidative stress and the interplay between aging-associated mitochondrial defects and LOAD-associated mitochondrial failure. The deleterious effects of the two hallmarks of LOAD, amyloid beta, and hyperphosphorylated tau, on mitochondrial function, movement, and morphology are described as well as the toxic effects of the most relevant genetic risk factor of LOAD, the apolipoprotein E4 allele. Finally, the review provides an overview about drugs and nutritional ingredients which improve mitochondrial function or/and act as antioxidants and discusses their potential role in the treatment of LOAD.
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Martorell P, Bataller E, Llopis S, Gonzalez N, Álvarez B, Montón F, Ortiz P, Ramón D, Genovés S. A cocoa peptide protects Caenorhabditis elegans from oxidative stress and β-amyloid peptide toxicity. PLoS One 2013; 8:e63283. [PMID: 23675471 PMCID: PMC3652819 DOI: 10.1371/journal.pone.0063283] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Accepted: 03/29/2013] [Indexed: 11/18/2022] Open
Abstract
Background Cocoa and cocoa-based products contain different compounds with beneficial properties for human health. Polyphenols are the most frequently studied, and display antioxidant properties. Moreover, protein content is a very interesting source of antioxidant bioactive peptides, which can be used therapeutically for the prevention of age-related diseases. Methodology/Principal Findings A bioactive peptide, 13L (DNYDNSAGKWWVT), was obtained from a hydrolyzed cocoa by-product by chromatography. The in vitro inhibition of prolyl endopeptidase (PEP) was used as screening method to select the suitable fraction for peptide identification. Functional analysis of 13L peptide was achieved using the transgenic Caenorhabditis elegans strain CL4176 expressing the human Aβ1–42 peptide as a pre-clinical in vivo model for Alzheimer's disease. Among the peptides isolated, peptide 13L (1 µg/mL) showed the highest antioxidant activity (P≤0.001) in the wild-type strain (N2). Furthermore, 13L produced a significant delay in body paralysis in strain CL4176, especially in the 24–47 h period after Aβ1–42 peptide induction (P≤0.0001). This observation is in accordance with the reduction of Aβ deposits in CL4176 by western blot. Finally, transcriptomic analysis in wild-type nematodes treated with 13L revealed modulation of the proteosomal and synaptic functions as the main metabolic targets of the peptide. Conclusions/Significance These findings suggest that the cocoa 13L peptide has antioxidant activity and may reduce Aβ deposition in a C. elegans model of Alzheimer's disease; and therefore has a putative therapeutic potential for prevention of age-related diseases. Further studies in murine models and humans will be essential to analyze the effectiveness of the 13L peptide in higher animals.
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Affiliation(s)
- Patricia Martorell
- Cell Biology Laboratory, Food Biotechnology Department, Biópolis SL, Paterna, Valencia, Spain
| | - Esther Bataller
- Cell Biology Laboratory, Food Biotechnology Department, Biópolis SL, Paterna, Valencia, Spain
| | - Silvia Llopis
- Cell Biology Laboratory, Food Biotechnology Department, Biópolis SL, Paterna, Valencia, Spain
| | - Núria Gonzalez
- Cell Biology Laboratory, Food Biotechnology Department, Biópolis SL, Paterna, Valencia, Spain
| | - Beatriz Álvarez
- Molecular Biology Laboratory, Microbial Biotechnology Department, Biópolis SL, Paterna, Valencia, Spain
| | - Fernando Montón
- Cell Biology Laboratory, Food Biotechnology Department, Biópolis SL, Paterna, Valencia, Spain
| | - Pepa Ortiz
- Cell Biology Laboratory, Food Biotechnology Department, Biópolis SL, Paterna, Valencia, Spain
| | - Daniel Ramón
- Cell Biology Laboratory, Food Biotechnology Department, Biópolis SL, Paterna, Valencia, Spain
| | - Salvador Genovés
- Cell Biology Laboratory, Food Biotechnology Department, Biópolis SL, Paterna, Valencia, Spain
- * E-mail:
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Yao X, Zhou G, Tang Y, Guo S, Qian Y, Jin C, Qin Y, Qian D, Duan JA. UPLC-PDA-TOF/MS coupled with multivariate statistical analysis to rapidly analyze and evaluateGinkgo bilobaleaves from different origin. Drug Test Anal 2013; 6:288-94. [DOI: 10.1002/dta.1477] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 01/31/2013] [Accepted: 02/28/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Xin Yao
- Jiangsu Key Laboratory for High Technology of TCM formulae Research; Nanjing University of Chinese Medicine; Nanjing 210046 China
| | - Guisheng Zhou
- Jiangsu Key Laboratory for High Technology of TCM formulae Research; Nanjing University of Chinese Medicine; Nanjing 210046 China
| | - Yuping Tang
- Jiangsu Key Laboratory for High Technology of TCM formulae Research; Nanjing University of Chinese Medicine; Nanjing 210046 China
| | - Sheng Guo
- Jiangsu Key Laboratory for High Technology of TCM formulae Research; Nanjing University of Chinese Medicine; Nanjing 210046 China
| | - Yefei Qian
- Jiangsu Key Laboratory for High Technology of TCM formulae Research; Nanjing University of Chinese Medicine; Nanjing 210046 China
| | - Chun Jin
- Jiangsu Shenlong Pharmaceutical Co., Ltd; Yancheng 224200 China
| | - Yong Qin
- Jiangsu Shenlong Pharmaceutical Co., Ltd; Yancheng 224200 China
| | - Dawei Qian
- Jiangsu Key Laboratory for High Technology of TCM formulae Research; Nanjing University of Chinese Medicine; Nanjing 210046 China
| | - Jin-ao Duan
- Jiangsu Key Laboratory for High Technology of TCM formulae Research; Nanjing University of Chinese Medicine; Nanjing 210046 China
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Qin J, Lan W, Liu Z, Huang J, Tang H, Wang H. Synthesis and biological evaluation of 1, 3-dihydroxyxanthone mannich base derivatives as anticholinesterase agents. Chem Cent J 2013; 7:78. [PMID: 23622085 PMCID: PMC3673835 DOI: 10.1186/1752-153x-7-78] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2013] [Accepted: 04/08/2013] [Indexed: 11/10/2022] Open
Abstract
Background Alzheimer’s disease (AD), a progressive and degenerative disorder, has become one of the severe problems among the aged population all over the world. To use cholinesterase inhibitor drugs has become the most predominant treatment strategy for AD. Results A series of novel 1, 3-dihydroxyxanthone Mannich bases derivatives (1a ~ 4e) were synthesized, structure elucidated and evaluated for anti-cholinesterase activity. The result showed that most of the target compounds exhibited moderate to good inhibitory activities with the IC50 values at micromole level concentration against both acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE). The preliminary structure-activity indicated that: (i) The alkoxy or alkenoxy substituents in the position 3 of xanthone have a positive influence on the inhibition potency; (ii) types of dialkylamine methyl in position 2 of xanthone affected cholinesterase activities and AChE/BuChE selectivity. Among them, 2-((diethylamino)methyl)-1-hydroxy-3-(3-methylbut-2-enyloxy)-9H-xanthen-9-one showed potent inhibitory activity against AChE with the IC50 value of 2.61 ± 0.13 μM and the best inhibitory activity against BuChE with the IC50 value of 0.51 ± 0.01 μM. The results of a mixed-type manner in enzyme kinetic experiment and molecular docking study for 2-((diethylamino)methyl)-1-hydroxy-3-(3-methylbut-2-enyloxy)-9H-xanthen-9-one demonstrated that the Mannich base derivatives were likely to bind to the active site (AS) and the peripheral anionic site (PAS) of cholinesterases. Conclusions This study suggested that 1, 3-dihydroxyxanthone Mannich base derivatives were potential dual inhibitors of both AChE and BuChE, which may be considered as a kind of novel drug candidates for treatment of AD.
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Affiliation(s)
- Jiangke Qin
- Key Laboratory of Medicinal Chemical Resources and Molecular Engineering of State Education Ministry, College of chemistry & Chemical Engineering, Guangxi Normal University, Guilin, 541004, P,R, China.
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Oleuropein aglycone protects transgenic C. elegans strains expressing Aβ42 by reducing plaque load and motor deficit. PLoS One 2013; 8:e58893. [PMID: 23520540 PMCID: PMC3592812 DOI: 10.1371/journal.pone.0058893] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Accepted: 02/07/2013] [Indexed: 01/13/2023] Open
Abstract
The presence of amyloid aggregates of the 42 amino acid peptide of amyloid beta (Aβ42) in the brain is the characteristic feature of Alzheimer’s disease (AD). Amyloid beta (Aβ deposition is also found in muscle fibers of individuals affected by inclusion body myositis (sIBM), a rare muscular degenerative disease affecting people over 50. Both conditions are presently lacking an effective therapeutic treatment. There is increasing evidence to suggest that natural polyphenols may prevent the formation of toxic amyloid aggregates; this applies also to oleuropein aglycone (OLE), the most abundant polyphenol in extra virgin olive oil, previously shown to hinder amylin and Aβ aggregation. Here we evaluated the ability of OLE to interfere with Aβ proteotoxicity in vivo by using the transgenic CL2006 and CL4176 strains of Caenorhabditis elegans, simplified models of AD and of sIBM, which express human Aβ in the cytoplasm of body wall muscle cells. OLE-fed CL2006 worms displayed reduced Aβ plaque deposition, less abundant toxic Aβ oligomers, remarkably decreased paralysis and increased lifespan with respect to untreated animals. A protective effect was also observed in CL4176 worms but only when OLE was administered before the induction of the Aβ transgene expression. These effects were specific, dose-related, and not mediated by the known polyphenolic anti-oxidant activity, suggesting that, in this model organism, OLE interferes with the Aβ aggregation skipping the appearance of toxic species, as already shown in vitro for Aβ42.
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C. elegans expressing human β2-microglobulin: a novel model for studying the relationship between the molecular assembly and the toxic phenotype. PLoS One 2012; 7:e52314. [PMID: 23284985 PMCID: PMC3528749 DOI: 10.1371/journal.pone.0052314] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Accepted: 11/15/2012] [Indexed: 01/12/2023] Open
Abstract
Availability of living organisms to mimic key step of amyloidogenesis of human protein has become an indispensable tool for our translation approach aiming at filling the deep gap existing between the biophysical and biochemical data obtained in vitro and the pathological features observed in patients. Human β(2)-microglobulin (β(2)-m) causes systemic amyloidosis in haemodialysed patients. The structure, misfolding propensity, kinetics of fibrillogenesis and cytotoxicity of this protein, in vitro, have been studied more extensively than for any other globular protein. However, no suitable animal model for β(2)-m amyloidosis has been so far reported. We have now established and characterized three new transgenic C. elegans strains expressing wild type human β(2)-m and two highly amyloidogenic isoforms: P32G variant and the truncated form ΔN6 lacking of the 6 N-terminal residues. The expression of human β(2)-m affects the larval growth of C. elegans and the severity of the damage correlates with the intrinsic propensity to self-aggregate that has been reported in previous in vitro studies. We have no evidence of the formation of amyloid deposits in the body-wall muscles of worms. However, we discovered a strict correlation between the pathological phenotype and the presence of oligomeric species recognized by the A11 antibody. The strains expressing human β(2)-m exhibit a locomotory defect quantified with the body bends assay. Here we show that tetracyclines can correct this abnormality confirming that these compounds are able to protect a living organism from the proteotoxicity of human β(2)-m.
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Influence of Ginkgo biloba extract on the proliferation, apoptosis of ACC-2 cell and Survivin gene expression in adenoid cystic carcinoma of lacrimal gland. ASIAN PAC J TROP MED 2012; 5:897-900. [DOI: 10.1016/s1995-7645(12)60167-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2012] [Revised: 08/15/2012] [Accepted: 09/15/2012] [Indexed: 11/23/2022] Open
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Sangha JS, Sun X, Wally OSD, Zhang K, Ji X, Wang Z, Wang Y, Zidichouski J, Prithiviraj B, Zhang J. Liuwei Dihuang (LWDH), a traditional Chinese medicinal formula, protects against β-amyloid toxicity in transgenic Caenorhabditis elegans. PLoS One 2012; 7:e43990. [PMID: 22952840 PMCID: PMC3431378 DOI: 10.1371/journal.pone.0043990] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2012] [Accepted: 07/27/2012] [Indexed: 12/12/2022] Open
Abstract
Liuwei Dihuang (LWDH), a classic Chinese medicinal formula, has been used to improve or restore declined functions related to aging and geriatric diseases, such as impaired mobility, vision, hearing, cognition and memory. Here, we report on the effect and possible mechanisms of LWDH mediated protection of β-amyloid (Aβ) induced paralysis in Caenorhabditis elegans using ethanol extract (LWDH-EE) and water extract (LWDH-WE). Chemical profiling and quantitative analysis revealed the presence of different levels of bioactive components in these extracts. LWDH-WE was rich in polar components such as monosaccharide dimers and trimers, whereas LWDH-EE was enriched in terms of phenolic compounds such as gallic acid and paeonol. In vitro studies revealed higher DPPH radical scavenging activity for LWDH-EE as compared to that found for LWDH-WE. Neither LWDH-EE nor LWDH-WE were effective in inhibiting aggregation of Aβ in vitro. By contrast, LWDH-EE effectively delayed Aβ induced paralysis in the transgenic C. elegans (CL4176) model which expresses human Aβ1–42. Western blot revealed no treatment induced reduction in Aβ accumulation in CL4176 although a significant reduction was observed at an early stage with respect to β-amyloid deposition in C. elegans strain CL2006 which constitutively expresses human Aβ1–42. In addition, LWDH-EE reduced in vivo reactive oxygen species (ROS) in C. elegans (CL4176) that correlated with increased survival of LWDH-EE treated N2 worms under juglone-induced oxidative stress. Analysis with GFP reporter strain TJ375 revealed increased expression of hsp16.2::GFP after thermal stress whereas a minute induction was observed for sod3::GFP. Quantitative gene expression analysis revealed that LWDH-EE repressed the expression of amy1 in CL4176 while up-regulating hsp16.2 induced by elevating temperature. Taken together, these results suggest that LWDH extracts, particularly LWDH-EE, alleviated β-amyloid induced toxicity, in part, through up-regulation of heat shock protein, antioxidant activity and reduced ROS in C. elegans.
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Affiliation(s)
- Jatinder S. Sangha
- Department of Environmental Sciences, Nova Scotia Agricultural College, Truro, Nova Scotia, Canada
| | - Xiaoli Sun
- Institute for Nutrisciences and Health, National Research Council Canada, Charlottetown, Prince Edward Island, Canada
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, People’s Republic of China
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, People’s Republic of China
| | - Owen S. D. Wally
- Department of Environmental Sciences, Nova Scotia Agricultural College, Truro, Nova Scotia, Canada
| | - Kaibin Zhang
- Institute for Nutrisciences and Health, National Research Council Canada, Charlottetown, Prince Edward Island, Canada
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, People’s Republic of China
| | - Xiuhong Ji
- Institute for Nutrisciences and Health, National Research Council Canada, Charlottetown, Prince Edward Island, Canada
| | - Zhimin Wang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, People’s Republic of China
| | - Yanwen Wang
- Institute for Nutrisciences and Health, National Research Council Canada, Charlottetown, Prince Edward Island, Canada
- Department of Biomedical Sciences, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada
| | - Jeffrey Zidichouski
- Institute for Nutrisciences and Health, National Research Council Canada, Charlottetown, Prince Edward Island, Canada
| | - Balakrishnan Prithiviraj
- Department of Environmental Sciences, Nova Scotia Agricultural College, Truro, Nova Scotia, Canada
- * E-mail: (BP); (JZ)
| | - Junzeng Zhang
- Institute for Nutrisciences and Health, National Research Council Canada, Charlottetown, Prince Edward Island, Canada
- Department of Chemistry, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada
- * E-mail: (BP); (JZ)
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Yao X, Shang E, Zhou G, Tang Y, Guo S, Su S, Jin C, Qian D, Qin Y, Duan JA. Comparative characterization of total flavonol glycosides and terpene lactones at different ages, from different cultivation sources and genders of Ginkgo biloba leaves. Int J Mol Sci 2012; 13:10305-10315. [PMID: 22949862 PMCID: PMC3431860 DOI: 10.3390/ijms130810305] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 07/20/2012] [Accepted: 08/08/2012] [Indexed: 11/23/2022] Open
Abstract
The extract from Ginkgo biloba leaves has become a very popular plant medicine and herbal supplement for its potential benefit in alleviating symptoms associated with peripheral vascular disease, dementia, asthma and tinnitus. Most research on G. biloba leaves focus on the leaves collected in July and August from four to seven year-old trees, however a large number of leaves from fruit cultivars (trees older than 10 years) are ignored and become obsolete after fruit harvest season (November). In this paper, we expand the tree age range (from one to 300 years) and first comparatively analyze the total flavonol glycosides and terpene lactones at different ages, from different cultivation sources and genders of G. biloba leaves collected in November by using the validated HPLC-ELSD and HPLC-PDA methods. The results show that the contents of total terpene lactones and flavonol glycosides in the leaves of young ginkgo trees are higher than those in old trees, and they are higher in male trees than in female trees. Geographical factors appear to have a significant influence on the contents as well. These results will provide a good basis for the comprehensive utilization of G. biloba leaves, especially the leaves from fruit cultivars.
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Affiliation(s)
- Xin Yao
- Jiangsu Key Laboratory for High Technology of TCM Formulae Research, Nanjing University of Chinese Medicine, Nanjing 210046, China; E-Mails: (X.Y.); (E.S.); (G.Z.); (S.G.); (S.S.); (D.Q.)
| | - Erxin Shang
- Jiangsu Key Laboratory for High Technology of TCM Formulae Research, Nanjing University of Chinese Medicine, Nanjing 210046, China; E-Mails: (X.Y.); (E.S.); (G.Z.); (S.G.); (S.S.); (D.Q.)
| | - Guisheng Zhou
- Jiangsu Key Laboratory for High Technology of TCM Formulae Research, Nanjing University of Chinese Medicine, Nanjing 210046, China; E-Mails: (X.Y.); (E.S.); (G.Z.); (S.G.); (S.S.); (D.Q.)
| | - Yuping Tang
- Jiangsu Key Laboratory for High Technology of TCM Formulae Research, Nanjing University of Chinese Medicine, Nanjing 210046, China; E-Mails: (X.Y.); (E.S.); (G.Z.); (S.G.); (S.S.); (D.Q.)
- Authors to whom correspondence should be addressed; E-Mails: (Y.T.); (J.-A.D.); Tel./Fax: +86-25-8581-1916 (Y.T.) (J.-A.D.)
| | - Sheng Guo
- Jiangsu Key Laboratory for High Technology of TCM Formulae Research, Nanjing University of Chinese Medicine, Nanjing 210046, China; E-Mails: (X.Y.); (E.S.); (G.Z.); (S.G.); (S.S.); (D.Q.)
| | - Shulan Su
- Jiangsu Key Laboratory for High Technology of TCM Formulae Research, Nanjing University of Chinese Medicine, Nanjing 210046, China; E-Mails: (X.Y.); (E.S.); (G.Z.); (S.G.); (S.S.); (D.Q.)
| | - Chun Jin
- Jiangsu Shenlong Pharmaceutical Co., Ltd., Yancheng 224200, China; E-Mails: (C.J.); (Y.Q.)
| | - Dawei Qian
- Jiangsu Key Laboratory for High Technology of TCM Formulae Research, Nanjing University of Chinese Medicine, Nanjing 210046, China; E-Mails: (X.Y.); (E.S.); (G.Z.); (S.G.); (S.S.); (D.Q.)
| | - Yong Qin
- Jiangsu Shenlong Pharmaceutical Co., Ltd., Yancheng 224200, China; E-Mails: (C.J.); (Y.Q.)
| | - Jin-Ao Duan
- Jiangsu Key Laboratory for High Technology of TCM Formulae Research, Nanjing University of Chinese Medicine, Nanjing 210046, China; E-Mails: (X.Y.); (E.S.); (G.Z.); (S.G.); (S.S.); (D.Q.)
- Authors to whom correspondence should be addressed; E-Mails: (Y.T.); (J.-A.D.); Tel./Fax: +86-25-8581-1916 (Y.T.) (J.-A.D.)
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Monascus-fermented dioscorea enhances oxidative stress resistance via DAF-16/FOXO in Caenorhabditis elegans. PLoS One 2012; 7:e39515. [PMID: 22745774 PMCID: PMC3382167 DOI: 10.1371/journal.pone.0039515] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2011] [Accepted: 05/27/2012] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Monascus-fermented products are mentioned in an ancient Chinese pharmacopoeia of medicinal food and herbs. Monascus-fermented products offer valuable therapeutic benefits and have been extensively used in East Asia for several centuries. Several biological activities of Monascus-fermented products were recently described, and the extract of Monascus-fermented products showed strong antioxidant activity of scavenging DPPH radicals. To evaluate whether Monascus-fermented dioscorea products have potential as nutritional supplements, Monascus-fermented dioscorea's modulation of oxidative-stress resistance and associated regulatory mechanisms in Caenorhabditis elegans were investigated. PRINCIPAL FINDINGS We examined oxidative stress resistance of the ethanol extract of red mold dioscorea (RMDE) in C. elegans, and found that RMDE-treated wild-type C. elegans showed an increased survival during juglone-induced oxidative stress compared to untreated controls, whereas the antioxidant phenotype was absent from a daf-16 mutant. In addition, the RMDE reduced the level of intracellular reactive oxygen species in C. elegans. Finally, the RMDE affected the subcellular distribution of the FOXO transcription factor, DAF-16, in C. elegans and induced the expression of the sod-3 antioxidative gene. CONCLUSIONS These findings suggest that the RMDE acts as an antioxidative stress agent and thus may have potential as a nutritional supplement. Further studies in C. elegans suggest that the antioxidant effect of RMDE is mediated via regulation of the DAF-16/FOXO-dependent pathway.
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Liu KX, He W, Rinne T, Liu Y, Zhao MQ, Wu WK. The Effect ofGinkgo bilobaExtract (EGb 761) Pretreatment on Intestinal Epithelial Apoptosis Induced by Intestinal Ischemia/Reperfusion in Rats: Role of Ceramide. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2012; 35:805-19. [PMID: 17963320 DOI: 10.1142/s0192415x07005284] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Apoptosis was demonstrated to be a major mode of intestinal epithelial cell death caused by intestinal ischemia/reperfusion ( II / R ). Ceramide has been proposed as a messenger for apoptosis. The present study was aimed to investigate the effect of Ginkgo biloba extract 761 (EGb 761) pretreatment on II / R -induced intestinal mucosal epithelial apoptosis in rats and the mechanism related to ceramide. The rat model of II / R injury was produced by clamping superior mesenteric artery for 60 min followed by reperfusion for 180 min. Twenty four rats were randomly allocated into Sham, II / R and EGb + II / R groups. In EGb + II / R group, EGb 761 (100 mg/kg per day) was administered intragastrically for 7 days before the surgery. Animals in II / R and sham groups were treated with equal volume of normal saline solution. Intestinal mucosal epithelial apoptosis was detected via electron microscopy and TUNEL method. Lipid peroxidation in intestinal mucosa was determined by detecting the malondialdehyde level and the activities of superoxide dismutase and peroxidase glutathione. The ceramide generation and sphingomyelinase (SMase) mRNA expression in intestinal mucosa were determined by high performance, thin layer chromatography, and RT-PCR, respectively. II / R caused intestinal mucosal epithelial apoptosis and over-production of the ceramide accompanied by up-regulation of SMase mRNA expression and increases of lipid peroxidation. EGb 761 pretreatment significantly decreased apoptosis index, and concurrently reduced the ceramide generation accompanied by down-regulation of SMase expression and inhibition of lipid peroxidation. The findings indicate that EGb 761 pretreatment attenuates II / R -induced intestinal epithelial apoptosis, which might be attributable to its antioxidant action of mediating ceramide pathway.
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Affiliation(s)
- Ke-Xuan Liu
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
| | - Wei He
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangzhou 510080, China
| | - Timo Rinne
- Division of Anaesthesia, Heart Center, Tampere University Hospital, Tampere 33521, Finland
| | - Ying Liu
- The Institute of Integrated Traditional Chinese Medicine and Western Medicine, Sun Yat-Sen University, Guangzhou 510080, China
| | - Ming-Qi Zhao
- The Institute of Integrated Traditional Chinese Medicine and Western Medicine, Sun Yat-Sen University, Guangzhou 510080, China
| | - Wei-Kang Wu
- The Institute of Integrated Traditional Chinese Medicine and Western Medicine, Sun Yat-Sen University, Guangzhou 510080, China
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Guo CX, Pei Q, Yin JY, Peng XD, Zhou BT, Zhao YC, Wu LX, Meng XG, Wang G, Li Q, Ouyang DS, Liu ZQ, Zhang W, Zhou HH. Effects ofGinkgo bilobaextracts on pharmacokinetics and efficacy of atorvastatin based on plasma indices. Xenobiotica 2012; 42:784-90. [DOI: 10.3109/00498254.2012.661100] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Shi YC, Liao VHC, Pan TM. Monascin from red mold dioscorea as a novel antidiabetic and antioxidative stress agent in rats and Caenorhabditis elegans. Free Radic Biol Med 2012; 52:109-17. [PMID: 22041455 DOI: 10.1016/j.freeradbiomed.2011.09.034] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2011] [Revised: 09/25/2011] [Accepted: 09/28/2011] [Indexed: 12/19/2022]
Abstract
Monascin is a major yellow compound from red mold dioscorea. We investigated monascin to test whether this compound acts as an antidiabetic and antioxidative stress agent in diabetic rats and Caenorhabditis elegans. The mechanisms by which monascin exerts its action in vivo were also examined. Streptozotocin (STZ)-induced diabetic rats were given monascin at 30 mg/kg/day and sacrificed after 8 weeks. Blood glucose and serum insulin, triglyceride, total cholesterol, and high-density lipoprotein and antioxidative enzymes in the pancreas of rats were measured. In addition, monascin was evaluated for stress resistance and potential associated mechanisms in C. elegans. Throughout the 8-week experimental period, significantly lowered blood glucose, serum triglyceride, and total cholesterol and higher high-density lipoprotein levels were observed in monascin-treated rats. Monascin-treated rats showed higher serum insulin level, lower reactive oxygen species production, and higher activities of glutathione peroxidase, superoxide dismutase, and catalase in the pancreas compared to diabetic control rats. In addition, monascin significantly induced the hepatic mRNA levels of FOXO3a, FOXO1, MnSOD, and catalase in STZ-induced diabetic rats. Monascin-treated C. elegans showed an increased survival rate during oxidative stress and heat stress treatments compared to untreated controls. Moreover, monascin extended the life span under high-glucose conditions and enhanced expression of small heat shock protein (sHSP-16.2), superoxide dismutase (SOD-3), and glutathione S-transferase (GST-4) in C. elegans. Finally, we showed that monascin affected the subcellular distribution of the FOXO transcription factor DAF-16, whereas it was unable to enhance oxidative stress resistance in the daf-16 deletion mutant in C. elegans. Mechanistic studies in rats and C. elegans suggest that the protective effects of monascin are mediated via regulation of the FOXO/DAF-16-dependent insulin signaling pathway by inducing the expression of stress response/antioxidant genes, thereby enhancing oxidative stress resistance.
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Affiliation(s)
- Yeu-Ching Shi
- Department of Biochemical Science and Technology, National Taiwan University, Taipei, Taiwan
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Chen JS, Huang PH, Wang CH, Lin FY, Tsai HY, Wu TC, Lin SJ, Chen JW. Nrf-2 mediated heme oxygenase-1 expression, an antioxidant-independent mechanism, contributes to anti-atherogenesis and vascular protective effects of Ginkgo biloba extract. Atherosclerosis 2010; 214:301-9. [PMID: 21144518 DOI: 10.1016/j.atherosclerosis.2010.11.010] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2010] [Revised: 11/01/2010] [Accepted: 11/08/2010] [Indexed: 10/18/2022]
Abstract
AIMS Vascular protective effects of Ginkgo biloba extract (GBE) may involve both antioxidant-related and anti-inflammatory mechanisms. GBE was recently suggested as a heme oxygenase (HO)-1 inducer. The role of HO-1 in anti-atherogenesis and related vascular protective effects of GBE awaited further clarification. METHODS AND RESULTS Tumor necrosis factor (TNF)-α was used to stimulate adhesiveness of human aortic endothelial cells (HAECs) to monocytes, an in vitro sign simulating atherogenesis. Pretreatment with GBE reduced TNF-α-stimulated endothelial adhesiveness, which could be attenuated by HO-1 inhibitors ZnPP IX or SnPP IX. GBE increased HO-1 expression and enzyme activity in HAECs. Pretreatment with MAP kinase inhibitor SB203580 significantly reduced GBE-induced HO-1 expression. Furthermore, GBE activated the translocation of the transcription factor nuclear factor-erythroid 2-related factor 2 (Nrf2), and increased its binding to the antioxidant response element (ARE) of the HO-1 gene. Pretreatment with PEG-SOD or other antioxidant reagents did not alter GBE-induced endothelial HO-1 expression. In vivo study also showed that GBE treatment could reduce leukocyte adherence to injury arteries, and enhance HO-1 expression in circulating monocytes and in arteries after wire injury, suggesting the in vivo induction of HO-1 by GBE. CONCLUSION GBE could inhibit cytokine-induced endothelial adhesiveness by inducing HO-1 expression via the activation of p38 and Nrf-2 pathways, a mechanism in which oxidative stress is not directly involved. GBE might exert its anti-atherogenesis and vascular protective effects by inducing vascular HO-1 expression.
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Affiliation(s)
- Jia-Shiong Chen
- Institute of Pharmacology, National Yang-Ming University School of Medicine, Taipei, Taiwan, ROC
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Diomede L, Cassata G, Fiordaliso F, Salio M, Ami D, Natalello A, Doglia SM, De Luigi A, Salmona M. Tetracycline and its analogues protect Caenorhabditis elegans from β amyloid-induced toxicity by targeting oligomers. Neurobiol Dis 2010; 40:424-31. [PMID: 20637283 DOI: 10.1016/j.nbd.2010.07.002] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2010] [Revised: 07/05/2010] [Accepted: 07/07/2010] [Indexed: 02/01/2023] Open
Abstract
The accumulation and deposition of amyloid beta (Aβ) peptide in extracellular dense plaques in the brain is a key phase in Alzheimer's disease (AD). Small oligomeric forms of Aβ are responsible for the toxicity and the early cognitive impairment observed in patients before the amyloid plaque deposits appear. It is essential for the development of an efficient cure for AD to identify compounds that interfere with Aβ aggregation, counteracting the molecular mechanisms involved in conversion of the monomeric amyloid protein into oligomeric and fibrillar forms. Tetracyclines have been proposed for AD therapy, although their effects on the aggregation of Aβ protein, particularly their ability to interact in vivo with the Aβ oligomers and/or aggregates, remain to be understood. Using transgenic Caenorhabditis elegans as a simplified invertebrate model of AD, we evaluated the ability of tetracyclines to interfere with the sequence of events leading to Aβ proteotoxicity. The drugs directly interact with the Aβ assemblies in vivo and reduce Aβ oligomer deposition, protecting C. elegans from oxidative stress and the onset of the paralysis phenotype. These effects were specific, dose-related and not linked to any antibiotic activity, suggesting that the drugs might offer an effective therapeutic strategy to target soluble Aβ aggregates.
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Affiliation(s)
- Luisa Diomede
- Department of Molecular Biochemistry and Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy.
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Wang Y, Huang LQ, Tang XC, Zhang HY. Retrospect and prospect of active principles from Chinese herbs in the treatment of dementia. Acta Pharmacol Sin 2010; 31:649-64. [PMID: 20523337 PMCID: PMC4002969 DOI: 10.1038/aps.2010.46] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2010] [Accepted: 03/23/2010] [Indexed: 12/16/2022] Open
Abstract
With an ageing population, dementia has become one of the world's primary health challenges. However, existing remedies offer limited benefits with certain side effects, which has prompted researchers to seek complementary and alternative therapies. China has long been known for abundant usage of various herbs. Some of these herbal decoctions are effective in stimulating blood circulation, supplementing vital energy and resisting aging, the lack of which are believed to underlie dementia. These herbs are regarded as new and promising sources of potential anti-dementia drugs. With the rapid evolution of life science and technology, numerous active components have been identified that are highly potent and multi-targeted with low toxicity, and therefore meet the requirements for dementia therapy. This review updates the research progress of Chinese herbs in the treatment of dementia, focusing on their effective principles.
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Affiliation(s)
- Ying Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Lu-qi Huang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Xi-can Tang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Hai-yan Zhang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
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Rockenfeller P, Madeo F. Ageing and eating. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2010; 1803:499-506. [DOI: 10.1016/j.bbamcr.2010.01.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2009] [Revised: 12/24/2009] [Accepted: 01/04/2010] [Indexed: 01/09/2023]
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Ginkgo biloba extract in Alzheimer's disease: from action mechanisms to medical practice. Int J Mol Sci 2010; 11:107-23. [PMID: 20162004 PMCID: PMC2820992 DOI: 10.3390/ijms11010107] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2009] [Revised: 12/31/2009] [Accepted: 01/01/2010] [Indexed: 12/15/2022] Open
Abstract
Standardized extract from the leaves of the Ginkgo biloba tree, labeled EGb761, is one of the most popular herbal supplements. Numerous preclinical studies have shown the neuroprotective effects of EGb761 and support the notion that it may be effective in the treatment and prevention of neurodegenerative disorders such as Alzheimer’s disease (AD). Despite the preclinical promise, the clinical efficacy of this drug remains elusive. In this review, possible mechanisms underlying neuroprotective actions of EGb761 are described in detail, together with a brief discussion of the problem of studying this herb clinically to verify its efficacy in the treatment and prevention of AD. Moreover, various parameters e.g., the dosage and the permeability of the blood brain barrier (BBB), impacting the outcome of the clinical effectiveness of the extract are also discussed. Overall, the findings summarized in this review suggest that, a better understanding of the neuroprotective mechanisms of EGb761 may contribute to better understanding of the effectiveness and complexity of this herb and may also be helpful for design of therapeutic strategies in future clinical practice. Therefore, in future clinical studies, different factors that could interfere with the effect of EGb761 should be considered.
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Su SY, Hsieh CL, Wu SL, Cheng WY, Li CC, Lo HY, Ho TY, Hsiang CY. Transcriptomic analysis of EGb 761-regulated neuroactive receptor pathway in vivo. JOURNAL OF ETHNOPHARMACOLOGY 2009; 123:68-73. [PMID: 19429342 DOI: 10.1016/j.jep.2009.02.027] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2008] [Revised: 10/20/2008] [Accepted: 02/16/2009] [Indexed: 05/27/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE EGb 761, a well-defined extract from Ginkgo biloba, has been widely used in patients with cerebral disorders. AIM OF THE STUDY Although EGb 761 exhibits neuroprotective effects and exerts beneficial effects on many neurological disorders, its mechanism on the neuronal functions is unclear so far. MATERIALS AND METHODS In this study, we used oligonucleotide microarray technique to investigate the effect of EGb 761 on the transcriptional profile of mouse genes. RNA samples were obtained from frontal cortex, straitum, and kidneys after the oral administration of EGb 761 for seven consecutive days. RESULTS Our data showed that EGb 761 significantly altered the neuroactive ligand-receptor interaction pathway in frontal cortex but not in straitum and kidney. Then we analyzed 26 receptor genes that were significantly altered by EGb 761 in this pathway and found that EGb 761 treatment highly up-regulated the subgroup of dopamine receptors, especially dopamine receptor 1a (Drd1a), in frontal cortex. Quantitative real-time reverse transcription-polymerase chain reaction and immunohistochemical staining confirmed the increased level of Drd1a expression after EGb 761 treatment. CONCLUSIONS In summary, we investigated for the first time the overall effects of EGb 761 on the gene expression in brain using a powerful systemic biological technique. Our results suggested that EGb 761 altered unique pathways and regulated the expressions of some specific neuronal receptor genes exclusively in frontal cortex.
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Affiliation(s)
- Shan-Yu Su
- Graduate Institute of Chinese Medical Science, China Medical University, Taichung 40402, Taiwan
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Hughes TF, Ganguli M. Modifiable Midlife Risk Factors for Late-Life Cognitive Impairment and Dementia. CURRENT PSYCHIATRY REVIEWS 2009; 5:73-92. [PMID: 19946443 PMCID: PMC2782871 DOI: 10.2174/157340009788167347] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The baby boom generation is approaching the age of greatest risk for cognitive impairment and dementia. There is growing interest in strategies to modify the environment in midlife to increase the probability of maintaining cognitive health in late life. Several potentially modifiable risk factors have been studied in relation to cognitive impairment and dementia in late life, but methodological limitations of observational research have resulted in some inconsistencies across studies. The most promising strategies are maintaining cardiovascular health, engagement in mental, physical, and social activities, using alcohol in moderation, abstaining from tobacco use, and following a heart-healthy diet. Other factors that may influence cognitive health are occupational attainment, depression, personality, exposure to general anesthesia, head injury, postmenopausal hormone therapy, non-steroidal anti-inflammatory medications, and nutritional supplements such as antioxidants. Some long-term observational studies initiated in midlife or earlier, and some randomized controlled trials, have examined the effects of specific cognitive health promotion behaviors in midlife on the risk of cognitive impairment in late life. Overall, these studies provide limited support for risk reduction at this time. Recommendations and challenges for developing effective strategies to reduce the burden of cognitive impairment and dementia in the future are discussed.
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Affiliation(s)
- Tiffany F. Hughes
- From the Departments of Psychiatry (T.F.H., M.G.) and Neurology (M.G.), School of Medicine, and the Department of Epidemiology (M.G.), Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Mary Ganguli
- From the Departments of Psychiatry (T.F.H., M.G.) and Neurology (M.G.), School of Medicine, and the Department of Epidemiology (M.G.), Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
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Leung MCK, Williams PL, Benedetto A, Au C, Helmcke KJ, Aschner M, Meyer JN. Caenorhabditis elegans: an emerging model in biomedical and environmental toxicology. Toxicol Sci 2008; 106:5-28. [PMID: 18566021 PMCID: PMC2563142 DOI: 10.1093/toxsci/kfn121] [Citation(s) in RCA: 673] [Impact Index Per Article: 42.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2008] [Accepted: 06/10/2008] [Indexed: 12/21/2022] Open
Abstract
The nematode Caenorhabditis elegans has emerged as an important animal model in various fields including neurobiology, developmental biology, and genetics. Characteristics of this animal model that have contributed to its success include its genetic manipulability, invariant and fully described developmental program, well-characterized genome, ease of maintenance, short and prolific life cycle, and small body size. These same features have led to an increasing use of C. elegans in toxicology, both for mechanistic studies and high-throughput screening approaches. We describe some of the research that has been carried out in the areas of neurotoxicology, genetic toxicology, and environmental toxicology, as well as high-throughput experiments with C. elegans including genome-wide screening for molecular targets of toxicity and rapid toxicity assessment for new chemicals. We argue for an increased role for C. elegans in complementing other model systems in toxicological research.
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Affiliation(s)
- Maxwell C. K. Leung
- Nicholas School of the Environment, Duke University, Durham, North Carolina 27750
| | - Phillip L. Williams
- Department of Environmental Health Science, College of Public University of Georgia, Athens, Georgia 30602
| | - Alexandre Benedetto
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee 37240
| | - Catherine Au
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee 37240
| | - Kirsten J. Helmcke
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee 37240
| | - Michael Aschner
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee 37240
| | - Joel N. Meyer
- Nicholas School of the Environment, Duke University, Durham, North Carolina 27750
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Keles MS, Demirci N, Yildirim A, Atamanalp SS, Altinkaynak K. Protective effects of N-acetylcysteine and Ginkgo biloba extract on ischaemia-reperfusion-induced hepatic DNA damage in rats. Clin Exp Med 2008; 8:193-8. [PMID: 18810589 DOI: 10.1007/s10238-008-0005-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2007] [Accepted: 04/29/2008] [Indexed: 01/30/2023]
Abstract
Hepatic ischaemia-reperfusion injury is a serious problem that occurs during various surgical operations such as liver transplantation, surgical revascularization, and partial organ resection. Different pharmacological agents have been used for the protection of organ function and for extending the tolerable ischaemic interval after the ischaemic insult. We aimed to determine the presence of 8-hydroxydeoxyguanosine (8-OHdG) in the DNA from liver undergoing ischaemia-reperfusion, and also to evaluate the protective effects of N-acetylcysteine (NAC) and EGb761 (Ginkgo biloba extract) against hepatic oxidative DNA damage. A total of 40 rats were divided into four groups of 10 animals each (sham-operation group, control group, NAC group, and EGb761 group). Oxidative damage to DNA was evaluated by measuring the increase in 8-OHdG formation in liver tissue and also the effects of NAC and EGb761 pretreatment. Hepatic ischaemia for 90 min followed by reperfusion caused a marked increase in tissue levels of 8-OHdG, thiobarbituric acid-reactive substance, serum ALT, AST and LDH activities compared to sham-operated group. Pretreatment with both NAC and EGb761 clearly diminished 8-OHdG formation and lipid peroxidation. These findings suggest that antioxidant molecules such as NAC and EGb761 may be useful in preventing postischaemic reperfusion injury in hepatic tissue.
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Affiliation(s)
- Mevlut Sait Keles
- Department of Biochemistry, Medical Faculty, Ataturk University, Erzurum, Turkey
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Yeung EYH, Sueyoshi T, Negishi M, Chang TKH. Identification of Ginkgo biloba as a novel activator of pregnane X receptor. Drug Metab Dispos 2008; 36:2270-6. [PMID: 18725505 DOI: 10.1124/dmd.108.023499] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Pregnane X receptor (PXR; NR1I2) is a ligand-activated transcription factor that plays a role not only in drug metabolism and transport but also in various other biological processes. Ginkgo biloba is a herbal medicine commonly used to manage memory impairment. Treatment of primary cultures of rat hepatocytes with G. biloba extract increases the mRNA expression of CYP3A23, which is a target gene for rat PXR. The present study was conducted to test the hypothesis that G. biloba extract activates PXR. Treatment of mouse PXR (mPXR) or human PXR (hPXR)-transfected HepG2 cells with G. biloba extract at 200 microg/ml increased mPXR and hPXR activation by 3.2- and 9.5-fold, respectively. Dose-response analysis showed a log-linear increase in hPXR activation by the extract over the range of 200 to 800 microg/ml. To determine whether G. biloba extract induces hPXR target gene expression, cultured LS180 human colon adenocarcinoma cells were treated for 72 h with the extract. G. biloba extract at 200, 400, and 800 microg/ml increased CYP3A4 mRNA expression by 1.7-, 2.4-, and 2.5-fold, respectively. The same concentrations of the extract increased CYP3A5 (1.3-3.6-fold) and P-glycoprotein (ABCB) 1 (2.7-6.4-fold) mRNA expression. At concentrations (5 and 10 microM) that did not down-regulate PXR gene expression and were not cytotoxic, L-sulforaphane (an hPXR antagonist) decreased CYP3A4, CYP3A5, and ABCB1 gene expression in cells treated with G. biloba extract. In summary, G. biloba extract activated mPXR and hPXR in a cell-based reporter gene assay and induced CYP3A4, CYP3A5, and ABCB1 gene expression in hPXR-expressing LS180 cells.
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Affiliation(s)
- Eugene Y H Yeung
- Faculty of Pharmaceutical Sciences, University of British Columbia, 2146 East Mall, Vancouver, BC, Canada V6T 1Z3
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48
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Ji HF, Zhang HY. Multipotent natural agents to combat Alzheimer's disease. Functional spectrum and structural features. Acta Pharmacol Sin 2008; 29:143-51. [PMID: 18215342 DOI: 10.1111/j.1745-7254.2008.00752.x] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
With the accelerated aging of human society, Alzheimeros disease (AD) is becoming one of the biggest threats to human health. Since multiple pathogenetic factors are implicated in the disease, the current hitting-one-target therapeutic strategy has proved inefficient to AD. As a result, finding multipotent agents that aim at multiple targets is attracting more and more attention. Although multifunctional anti-AD agents can be created by incorporating two or more pharmacophores in one scaffold, naturally occurring multipotent agents also attracted much attention. In this review, we first describe the functions of some typical naturally originated multipotent anti-AD compounds, then summarize their structural features and reveal that phenolics with certain flexibility predominate in these agents, which are of significance to find novel multipotent drugs to combat AD and other neurodegenerative diseases as well.
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Affiliation(s)
- Hong-fang Ji
- Shandong Provincial Research Center for Bioinformatic Engineering and Technique, Center for Advanced Study, Shandong University of Technology, Zibo 255049, China
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Boveris AD, Galleano M, Puntarulo S. In vivo supplementation with Ginkgo biloba protects membranes against lipid peroxidation. Phytother Res 2007; 21:735-40. [PMID: 17450504 DOI: 10.1002/ptr.2153] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The effect of Ginkgo biloba (Gb) supplementation in vivo was studied on lipid peroxidation of microsomal membranes. Administration of up to 100 mg/kg/day Gb to rats did not significantly affect either the activity of microsomal enzymes, the rate of generation of superoxide anion or the iron reduction rate by rat liver microsomes. Lipid peroxidation, assessed by the generation of lipid radicals measured by electron paramagnetic resonance (EPR) spectroscopy using POBN as the spin trap, was reduced by 39.7% and thiobarbituric acid reactive substances (TBARS) generation by 30% after Gb supplementation (100 mg/kg/day) for 10 days. Moreover, membranes from Gb treated animals showed a significant lower content of lipid radicals and TBARS after exposure to oxidative stress both in vitro (t-butyl hydroperoxide) and in vivo (acute iron overload). The data presented here showed that Gb extracts were able to limit lipid peroxidation and scavenge lipid radicals in vivo and actively protect membranes from oxidative damage.
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Affiliation(s)
- Alejandro D Boveris
- Physical Chemistry-PRALIB, School of Pharmacy and Biochemistry, University of Buenos Aires, Argentina
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Chan PC, Xia Q, Fu PP. Ginkgo biloba leave extract: biological, medicinal, and toxicological effects. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART C, ENVIRONMENTAL CARCINOGENESIS & ECOTOXICOLOGY REVIEWS 2007; 25:211-44. [PMID: 17763047 DOI: 10.1080/10590500701569414] [Citation(s) in RCA: 167] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Ginkgo biloba leave extract is among the most widely sold herbal dietary supplements in the United States. Its purported biological effects include: scavenging free radical; lowering oxidative stress; reducing neural damages, reducing platelets aggregation; anti-inflammation; anti-tumor activities; and anti-aging. Clinically, it has been prescribed to treat CNS disorders such as Alzheimer's disease and cognitive deficits. It exerts allergy and changes in bleeding time. While its mutagenicity or carcinogenic activity has not been reported, its components, quercetin, kaempferol and rutin have been shown to be genotoxic. There are no standards or guidelines regulating the constituent components of Ginkgo biloba leave extract nor are exposure limits imposed. Safety evaluation of Ginkgo biloba leave extract is being conducted by the U.S. National Toxicology Program.
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Affiliation(s)
- Po-Chuen Chan
- National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA.
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