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Bai SC, Wang YC, Li XZ, Li G. Inhibiting the Aggregation of Aβ by Natural Product Molecules. ChemMedChem 2024; 19:e202400223. [PMID: 38807345 DOI: 10.1002/cmdc.202400223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/28/2024] [Accepted: 05/28/2024] [Indexed: 05/30/2024]
Abstract
The abnormal aggregation of Aβ has been considered one of the primary causative factors for Alzheimer's disease. Diverse molecular entities have been developed to mitigate the formation of toxic Aβ aggregates within the brain by inhibiting Aβ aggregation. Recognizing that many FDA-approved drugs are derived from natural products, we present a summary of recent discoveries involving natural product molecules with inhibitory effects on Aβ aggregation. By consolidating these findings, our review offers researchers a concise overview of the latest advancements in natural product-based interventions for Alzheimer's disease.
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Affiliation(s)
- Si-Cong Bai
- School of Future Technology, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Ye-Cheng Wang
- Fuzhou Institute of Oceanography, College of Materials and Chemical Engineering, Minjiang University, Fuzhou, Fujian 350108, China
- College of Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Xin-Zhong Li
- Fuzhou Institute of Oceanography, College of Materials and Chemical Engineering, Minjiang University, Fuzhou, Fujian 350108, China
| | - Gao Li
- Fuzhou Institute of Oceanography, College of Materials and Chemical Engineering, Minjiang University, Fuzhou, Fujian 350108, China
- Fujian-Taiwan-Hongkong-Macao Science and Technology Co-operation Base of Intelligent Pharmaceutics, Minjiang University, Fuzhou, Fujian 350108, China
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Hadidi M, Liñán-Atero R, Tarahi M, Christodoulou MC, Aghababaei F. The Potential Health Benefits of Gallic Acid: Therapeutic and Food Applications. Antioxidants (Basel) 2024; 13:1001. [PMID: 39199245 PMCID: PMC11352096 DOI: 10.3390/antiox13081001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2024] [Revised: 08/14/2024] [Accepted: 08/15/2024] [Indexed: 09/01/2024] Open
Abstract
Gallic acid (GA), a phenolic acid found in fruits and vegetables, has been consumed by humans for centuries. Its extensive health benefits, such as antimicrobial, antioxidant, anticancer, anti-inflammatory, and antiviral properties, have been well-documented. GA's potent antioxidant capabilities enable it to neutralize free radicals, reduce oxidative stress, and protect cells from damage. Additionally, GA exerts anti-inflammatory effects by inhibiting inflammatory cytokines and enzymes, making it a potential therapeutic agent for inflammatory diseases. It also demonstrates anticancer properties by inhibiting cancer cell growth and promoting apoptosis. Furthermore, GA offers cardiovascular benefits, such as lowering blood pressure, decreasing cholesterol, and enhancing endothelial function, which may aid in the prevention and management of cardiovascular diseases. This review covers the chemical structure, sources, identification and quantification methods, and biological and therapeutic properties of GA, along with its applications in food. As research progresses, the future for GA appears promising, with potential uses in functional foods, pharmaceuticals, and nutraceuticals aimed at improving overall health and preventing disease. However, ongoing research and innovation are necessary to fully understand its functional benefits, address current challenges, and establish GA as a mainstay in therapeutic and nutritional interventions.
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Affiliation(s)
- Milad Hadidi
- Institute of Physiological Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria
| | - Rafael Liñán-Atero
- Department of Organic Chemistry, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, 13071 Ciudad Real, Spain;
| | - Mohammad Tarahi
- Department of Food Science and Technology, School of Agriculture, Shiraz University, Shiraz 7144165186, Iran;
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Hou J, Wang X, Zhang J, Shen Z, Li X, Yang Y. Chuanxiong Renshen Decoction Inhibits Alzheimer's Disease Neuroinflammation by Regulating PPARγ/NF-κB Pathway. Drug Des Devel Ther 2024; 18:3209-3232. [PMID: 39071817 PMCID: PMC11283787 DOI: 10.2147/dddt.s462266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 07/12/2024] [Indexed: 07/30/2024] Open
Abstract
Background and Aim Previous studies of our research group have shown that Chuanxiong Renshen Decoction (CRD) has the effect of treating AD, but the exact mechanism of its effect is still not clarified. The aim of this study was to investigate the effect and mechanism of CRD on AD neuroinflammation. Materials and Methods Morris Water Maze (MWM) tests were employed to assess the memory and learning capacity of AD mice. HE and Nissl staining were used to observe the neural cells of mice. The expression of Iba-1 and CD86 were detected by immunohistochemical staining. Utilize UHPLC-MS/MS metabolomics techniques and the KEGG to analyze the metabolic pathways of CRD against AD. Lipopolysaccharide (LPS) induced BV2 microglia cells to construct a neuroinflammatory model. The expression of Iba-1 and CD86 were detected by immunofluorescence and flow cytometry. The contents of TNF-α and IL-1β were detected by ELISA. Western blot assay was used to detect the expression of PPARγ, p-NF-κB p65, NF-κB p65 proteins and inflammatory cytokines iNOS and COX-2 in PPARγ/NF-κB pathway with and without PPARγ inhibitor GW9662. Results CRD ameliorated the learning and memory ability of 3×Tg-AD mice, repaired the damaged nerve cells in the hippocampus, reduced the area of Iba-1 and CD86 positive areas in both the hippocampus and cortex regions, as well as attenuated serum levels of IL-1β and TNF-α in mice. CRD-containing serum significantly decreased the expression level of Iba-1, significantly reduced the levels of TNF-α and IL-1β, significantly increased the protein expression of PPARγ, and significantly decreased the proteins expression of iNOS, COX-2 and p-NF-κB p65 in BV2 microglia cells. After addition of PPARγ inhibitor GW9662, the inhibitory effect of CRD-containing serum on NF-κB activation was significantly weakened. Conclusion CRD can activate PPARγ, regulating PPARγ/NF-κB signaling pathway, inhibiting microglia over-activation and reducing AD neuroinflammation.
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Affiliation(s)
- Jinling Hou
- School of Pharmacy, Hangzhou Medical College, Hangzhou, People’s Republic of China
| | - Xiaoyan Wang
- School of Pharmacy, Hangzhou Medical College, Hangzhou, People’s Republic of China
| | - Jian Zhang
- School of Pharmacy, Hangzhou Medical College, Hangzhou, People’s Republic of China
| | - Zhuojun Shen
- School of Pharmacy, Hangzhou Medical College, Hangzhou, People’s Republic of China
| | - Xiang Li
- School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, People’s Republic of China
| | - Yuanxiao Yang
- School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, People’s Republic of China
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Ju J, Li X, Pan Y, Du J, Yang X, Men S, Liu B, Zhang Z, Zhong H, Mai J, Wang Y, Hou ST. Adenosine mediates the amelioration of social novelty deficits during rhythmic light treatment of 16p11.2 deletion female mice. Mol Psychiatry 2024:10.1038/s41380-024-02596-4. [PMID: 38740879 DOI: 10.1038/s41380-024-02596-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 05/01/2024] [Accepted: 05/03/2024] [Indexed: 05/16/2024]
Abstract
Non-invasive brain stimulation therapy for autism spectrum disorder (ASD) has shown beneficial effects. Recently, we and others demonstrated that visual sensory stimulation using rhythmic 40 Hz light flicker effectively improved cognitive deficits in mouse models of Alzheimer's disease and stroke. However, whether rhythmic visual 40 Hz light flicker stimulation can ameliorate behavioral deficits in ASD remains unknown. Here, we show that 16p11.2 deletion female mice exhibit a strong social novelty deficit, which was ameliorated by treatment with a long-term 40 Hz light stimulation. The elevated power of local-field potential (LFP) in the prefrontal cortex (PFC) of 16p11.2 deletion female mice was also effectively reduced by 40 Hz light treatment. Importantly, the 40 Hz light flicker reversed the excessive excitatory neurotransmission of PFC pyramidal neurons without altering the firing rate and the number of resident PFC neurons. Mechanistically, 40 Hz light flicker evoked adenosine release in the PFC to modulate excessive excitatory neurotransmission of 16p11.2 deletion female mice. Elevated adenosine functioned through its cognate A1 receptor (A1R) to suppress excessive excitatory neurotransmission and to alleviate social novelty deficits. Indeed, either blocking the A1R using a specific antagonist DPCPX or knocking down the A1R in the PFC using a shRNA completely ablated the beneficial effects of 40 Hz light flicker. Thus, this study identified adenosine as a novel neurochemical mediator for ameliorating social novelty deficit by reducing excitatory neurotransmission during 40 Hz light flicker treatment. The 40 Hz light stimulation warrants further development as a non-invasive ASD therapeutics.
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Affiliation(s)
- Jun Ju
- Brain Research Centre, Department of Neuroscience, School of Life Sciences, Southern University of Science and Technology, 1088 Xueyuan Blvd, Nanshan District, Shenzhen, 518055, Guangdong, PR China
| | - Xuanyi Li
- Brain Research Centre, Department of Neuroscience, School of Life Sciences, Southern University of Science and Technology, 1088 Xueyuan Blvd, Nanshan District, Shenzhen, 518055, Guangdong, PR China
| | - Yifan Pan
- Brain Research Centre, Department of Neuroscience, School of Life Sciences, Southern University of Science and Technology, 1088 Xueyuan Blvd, Nanshan District, Shenzhen, 518055, Guangdong, PR China
| | - Jun Du
- The Brain Science Center, Beijing Institute of Basic Medical Sciences, 100850, Beijing, China
| | - Xinyi Yang
- Brain Research Centre, Department of Neuroscience, School of Life Sciences, Southern University of Science and Technology, 1088 Xueyuan Blvd, Nanshan District, Shenzhen, 518055, Guangdong, PR China
| | - Siqi Men
- Brain Research Centre, Department of Neuroscience, School of Life Sciences, Southern University of Science and Technology, 1088 Xueyuan Blvd, Nanshan District, Shenzhen, 518055, Guangdong, PR China
| | - Bo Liu
- Brain Research Centre, Department of Neuroscience, School of Life Sciences, Southern University of Science and Technology, 1088 Xueyuan Blvd, Nanshan District, Shenzhen, 518055, Guangdong, PR China
| | - Zhenyu Zhang
- Brain Research Centre, Department of Neuroscience, School of Life Sciences, Southern University of Science and Technology, 1088 Xueyuan Blvd, Nanshan District, Shenzhen, 518055, Guangdong, PR China
| | - Haolin Zhong
- Brain Research Centre, Department of Neuroscience, School of Life Sciences, Southern University of Science and Technology, 1088 Xueyuan Blvd, Nanshan District, Shenzhen, 518055, Guangdong, PR China
| | - Jinyuan Mai
- Brain Research Centre, Department of Neuroscience, School of Life Sciences, Southern University of Science and Technology, 1088 Xueyuan Blvd, Nanshan District, Shenzhen, 518055, Guangdong, PR China
| | - Yizheng Wang
- Huashan Hospital, Fudan University, Shanghai, PR China
| | - Sheng-Tao Hou
- Brain Research Centre, Department of Neuroscience, School of Life Sciences, Southern University of Science and Technology, 1088 Xueyuan Blvd, Nanshan District, Shenzhen, 518055, Guangdong, PR China.
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Zhang T, Chu Y, Wang Y, Wang Y, Wang J, Ji X, Zhang G, Shi G, Cui R, Kang Y. Testosterone deficiency worsens mitochondrial dysfunction in APP/PS1 mice. Front Aging Neurosci 2024; 16:1390915. [PMID: 38752208 PMCID: PMC11094339 DOI: 10.3389/fnagi.2024.1390915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Accepted: 04/12/2024] [Indexed: 05/18/2024] Open
Abstract
Background Recent studies show testosterone (T) deficiency worsens cognitive impairment in Alzheimer's disease (AD) patients. Mitochondrial dysfunction, as an early event of AD, is becoming critical hallmark of AD pathogenesis. However, currently, whether T deficiency exacerbates mitochondrial dysfunction of men with AD remains unclear. Objective The purpose of this study is to explore the effects of T deficiency on mitochondrial dysfunction of male AD mouse models and its potential mechanisms. Methods Alzheimer's disease animal model with T deficiency was performed by castration to 3-month-old male APP/PS1 mice. Hippocampal mitochondrial function of mice was analyzed by spectrophotometry and flow cytometry. The gene expression levels related to mitochondrial biogenesis and mitochondrial dynamics were determined through quantitative real-time PCR (qPCR) and western blot analysis. SH-SY5Y cells treated with flutamide, T and/or H2O2 were processed for analyzing the potential mechanisms of T on mitochondrial dysfunction. Results Testosterone deficiency significantly aggravated the cognitive deficits and hippocampal pathologic damage of male APP/PS1 mice. These effects were consistent with exacerbated mitochondrial dysfunction by gonadectomy to male APP/PS1 mice, reflected by further increase in oxidative damage and decrease in mitochondrial membrane potential, complex IV activity and ATP levels. More importantly, T deficiency induced the exacerbation of compromised mitochondrial homeostasis in male APP/PS1 mice by exerting detrimental effects on mitochondrial biogenesis and mitochondrial dynamics at mRNA and protein level, leading to more defective mitochondria accumulated in the hippocampus. In vitro studies using SH-SY5Y cells validated T's protective effects on the H2O2-induced mitochondrial dysfunction, mitochondrial biogenesis impairment, and mitochondrial dynamics imbalance. Administering androgen receptor (AR) antagonist flutamide weakened the beneficial effects of T pretreatment on H2O2-treated SH-SY5Y cells, demonstrating a critical role of classical AR pathway in maintaining mitochondrial function. Conclusion Testosterone deficiency exacerbates hippocampal mitochondrial dysfunction of male APP/PS1 mice by accumulating more defective mitochondria. Thus, appropriate T levels in the early stage of AD might be beneficial in delaying AD pathology by improving mitochondrial biogenesis and mitochondrial dynamics.
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Affiliation(s)
- Tianyun Zhang
- Postdoctoral Research Station of Biology, Hebei Medical University, Shijiazhuang, China
- Laboratory of Neurobiology, Hebei Medical University, Shijiazhuang, China
| | - Yun Chu
- Laboratory of Neurobiology, Hebei Medical University, Shijiazhuang, China
| | - Yue Wang
- Laboratory of Neurobiology, Hebei Medical University, Shijiazhuang, China
| | - Yu Wang
- Postdoctoral Research Station of Biology, Hebei Medical University, Shijiazhuang, China
- Laboratory of Neurobiology, Hebei Medical University, Shijiazhuang, China
| | - Jinyang Wang
- Laboratory of Neurobiology, Hebei Medical University, Shijiazhuang, China
- Department of Neurology, Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xiaoming Ji
- Laboratory of Neurobiology, Hebei Medical University, Shijiazhuang, China
- Neuroscience Research Center, Hebei Medical University, Shijiazhuang, China
| | - Guoliang Zhang
- Neuroscience Research Center, Hebei Medical University, Shijiazhuang, China
| | - Geming Shi
- Laboratory of Neurobiology, Hebei Medical University, Shijiazhuang, China
- Neuroscience Research Center, Hebei Medical University, Shijiazhuang, China
| | - Rui Cui
- Neuroscience Research Center, Hebei Medical University, Shijiazhuang, China
| | - Yunxiao Kang
- Laboratory of Neurobiology, Hebei Medical University, Shijiazhuang, China
- Neuroscience Research Center, Hebei Medical University, Shijiazhuang, China
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Albadrani HM, Chauhan P, Ashique S, Babu MA, Iqbal D, Almutary AG, Abomughaid MM, Kamal M, Paiva-Santos AC, Alsaweed M, Hamed M, Sachdeva P, Dewanjee S, Jha SK, Ojha S, Slama P, Jha NK. Mechanistic insights into the potential role of dietary polyphenols and their nanoformulation in the management of Alzheimer's disease. Biomed Pharmacother 2024; 174:116376. [PMID: 38508080 DOI: 10.1016/j.biopha.2024.116376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 01/19/2024] [Accepted: 02/28/2024] [Indexed: 03/22/2024] Open
Abstract
Alzheimer's disease (AD) is a very common neurodegenerative disorder associated with memory loss and a progressive decline in cognitive activity. The two major pathophysiological factors responsible for AD are amyloid plaques (comprising amyloid-beta aggregates) and neurofibrillary tangles (consisting of hyperphosphorylated tau protein). Polyphenols, a class of naturally occurring compounds, are immensely beneficial for the treatment or management of various disorders and illnesses. Naturally occurring sources of polyphenols include plants and plant-based foods, such as fruits, herbs, tea, vegetables, coffee, red wine, and dark chocolate. Polyphenols have unique properties, such as being the major source of anti-oxidants and possessing anti-aging and anti-cancerous properties. Currently, dietary polyphenols have become a potential therapeutic approach for the management of AD, depending on various research findings. Dietary polyphenols can be an effective strategy to tackle multifactorial events that occur with AD. For instance, naturally occurring polyphenols have been reported to exhibit neuroprotection by modulating the Aβ biogenesis pathway in AD. Many nanoformulations have been established to enhance the bioavailability of polyphenols, with nanonization being the most promising. This review comprehensively provides mechanistic insights into the neuroprotective potential of dietary polyphenols in treating AD. It also reviews the usability of dietary polyphenol as nanoformulation for AD treatment.
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Affiliation(s)
- Hind Muteb Albadrani
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam, Eastern Province 34212, Saudi Arabia
| | - Payal Chauhan
- Department of Pharmaceutical Sciences, Maharshi Dayanad University, Rohtak, Haryana 124001, India
| | - Sumel Ashique
- Department of Pharmaceutical Sciences, Bengal College of Pharmaceutical Sciences & Research, Durgapur 713212, West Bengal, India
| | - M Arockia Babu
- Institute of Pharmaceutical Research, GLA University, Mathura, India
| | - Danish Iqbal
- Department of Health Information Management, College of Applied Medical Sciences, Buraydah Private Colleges, Buraydah 51418, Saudi Arabia
| | - Abdulmajeed G Almutary
- Department of Biomedical Sciences, College of Health Sciences, Abu Dhabi University, Abu Dhabi, United Arab Emirates
| | - Mosleh Mohammad Abomughaid
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, University of Bisha, Bisha 61922, Saudi Arabia
| | - Mehnaz Kamal
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Ana Cláudia Paiva-Santos
- Department of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Coimbra, Portugal; REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Coimbra, Portugal
| | - Mohammed Alsaweed
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Al-Majmaah 11952, Saudi Arabia.
| | - Munerah Hamed
- Department of Pathology, Faculty of Medicine, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | | | - Saikat Dewanjee
- Advanced Pharmacognosy Research Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
| | - Saurabh Kumar Jha
- Department of Zoology, Kalindi College, University of Delhi, 110008, India
| | - Shreesh Ojha
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, P.O. Box 15551, Al Ain, United Arab Emirates
| | - Petr Slama
- Department of Animal Morphology, Physiology and Genetics, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic.
| | - Niraj Kumar Jha
- Centre for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India; Centre of Research Impact and Outcome, Chitkara University, Rajpura- 140401, Punjab, India.; School of Bioengineering & Biosciences, Lovely Professional University, Phagwara 144411, India; Department of Biotechnology, School of Applied & Life Sciences (SALS), Uttaranchal University, Dehradun, India.
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Balakrishnan R, Jannat K, Choi DK. Development of dietary small molecules as multi-targeting treatment strategies for Alzheimer's disease. Redox Biol 2024; 71:103105. [PMID: 38471283 PMCID: PMC10945280 DOI: 10.1016/j.redox.2024.103105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/15/2024] [Accepted: 02/24/2024] [Indexed: 03/14/2024] Open
Abstract
Cognitive dysfunction can occur both in normal aging and age-related neurological disorders, such as mild cognitive impairment and Alzheimer's disease (AD). These disorders have few treatment options due to side effects and limited efficacy. New approaches to slow cognitive decline are urgently needed. Dietary interventions (nutraceuticals) have received considerable attention because they exhibit strong neuroprotective properties and may help prevent or minimize AD symptoms. Biological aging is driven by a series of interrelated mechanisms, including oxidative stress, neuroinflammation, neuronal apoptosis, and autophagy, which function through various signaling pathways. Recent clinical and preclinical studies have shown that dietary small molecules derived from natural sources, including flavonoids, carotenoids, and polyphenolic acids, can modulate oxidative damage, cognitive impairments, mitochondrial dysfunction, neuroinflammation, neuronal apoptosis, autophagy dysregulation, and gut microbiota dysbiosis. This paper reviews research on different dietary small molecules and their bioactive constituents in the treatment of AD. Additionally, the chemical structure, effective dose, and specific molecular mechanisms of action are comprehensively explored. This paper also discusses the advantages of using nanotechnology-based drug delivery, which significantly enhances oral bioavailability, safety, and therapeutic effect, and lowers the risk of adverse effects. These agents have considerable potential as novel and safe therapeutic agents that can prevent and combat age-related AD.
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Affiliation(s)
- Rengasamy Balakrishnan
- Department of Applied Life Sciences, Graduate School, BK21 Program, Konkuk University, Chungju, 27478, South Korea; Department of Biotechnology, College of Biomedical and Health Science, Research Institute of Inflammatory Disease (RID), Konkuk University, Chungju, 27478, South Korea
| | - Khoshnur Jannat
- Department of Biotechnology, College of Biomedical and Health Science, Research Institute of Inflammatory Disease (RID), Konkuk University, Chungju, 27478, South Korea
| | - Dong-Kug Choi
- Department of Applied Life Sciences, Graduate School, BK21 Program, Konkuk University, Chungju, 27478, South Korea; Department of Biotechnology, College of Biomedical and Health Science, Research Institute of Inflammatory Disease (RID), Konkuk University, Chungju, 27478, South Korea.
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Maity B, Kameyama S, Tian J, Pham TT, Abe S, Chatani E, Murata K, Ueno T. Fusion of amyloid beta with ferritin yields an isolated oligomeric beta-sheet-rich aggregate inside the ferritin cage. Biomater Sci 2024; 12:2408-2417. [PMID: 38511491 DOI: 10.1039/d4bm00173g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Alzheimer's disease is a severe brain condition caused by the formation of amyloid plaques composed of amyloid beta (Aβ) peptides. These peptides form oligomers, protofibrils, and fibrils before deposition into amyloid plaques. Among these intermediates, Aβ oligomers (AβOs) were found to be the most toxic and therefore an appealing target for drug development and understanding their role in the disease. However, precise isolation and characterization of AβOs have proven challenging because AβOs tend to aggregate and form heterogeneous mixtures in solution. As a solution, we genetically fused the Aβ peptide with a ferritin monomer. Such fusion allowed the encapsulation of precisely 24 Aβ peptides inside the 24-mer ferritin cage. Using high-speed atomic force microscopy (HS-AFM), we disassembled ferritin and directly visualized the Aβ core enclosed within the cage. The thioflavin-T assay (ThT) and attenuated total reflection infrared spectroscopy (ATR-IR) revealed the presence of a β-sheet structure in the encapsulated oligomeric aggregate. Gallic acid, an amyloid inhibitor, can inhibit the fluorescence of ThT bound AβOs. Our approach represents a significant advancement in the isolation and characterization of β-sheet rich AβOs and is expected to be useful for future studies of other disordered peptides such as α-synuclein and tau.
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Affiliation(s)
- Basudev Maity
- School of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta-cho, 4259, Midori-ku, Yokohama 226 8501, Japan.
| | - Shiori Kameyama
- School of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta-cho, 4259, Midori-ku, Yokohama 226 8501, Japan.
| | - Jiaxin Tian
- School of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta-cho, 4259, Midori-ku, Yokohama 226 8501, Japan.
| | - Thuc Toan Pham
- School of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta-cho, 4259, Midori-ku, Yokohama 226 8501, Japan.
| | - Satoshi Abe
- School of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta-cho, 4259, Midori-ku, Yokohama 226 8501, Japan.
| | - Eri Chatani
- Department of Chemistry, Graduate School of Science, Kobe University, Kobe, Hyogo 657-8501, Japan
| | - Kazuyoshi Murata
- Exploratory Research Center on Life and Living Systems (ExCELLS), National Institute for Natural Sciences, Okazaki, Aichi, 444-8585, Japan
- National Institute for Physiological Sciences (NIPS), National Institute for Natural Sciences, Okazaki, Aichi, 444-8585, Japan
| | - Takafumi Ueno
- School of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta-cho, 4259, Midori-ku, Yokohama 226 8501, Japan.
- Living Systems Materialogy (LiSM) Research Group, International Research Frontiers Initiative (IRFI), Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama 226-8501, Japan
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Vicente-Zurdo D, Rosales-Conrado N, León-González ME. Unravelling the in vitro and in vivo potential of selenium nanoparticles in Alzheimer's disease: A bioanalytical review. Talanta 2024; 269:125519. [PMID: 38086100 DOI: 10.1016/j.talanta.2023.125519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 11/30/2023] [Accepted: 12/03/2023] [Indexed: 01/05/2024]
Abstract
Alzheimer's disease (AD) is a devastating neurodegenerative disorder characterized by progressive cognitive decline and the accumulation of beta-amyloid plaques and tau tangles in the brain. Current therapies have limited efficacy, prompting the search for novel treatments. Selenium nanoparticles (SeNPs) have emerged as promising candidates for AD therapy due to their unique physicochemical properties and potential therapeutic effects. This review provides an overview of SeNPs and their potential application in AD treatment, as well as the main bioanalytical techniques applied in this field. SeNPs possess antioxidant and anti-inflammatory properties, making them potential candidates to combat the oxidative stress and neuroinflammation associated with AD. Moreover, SeNPs have shown the ability to cross the blood-brain barrier (BBB), allowing them to target brain regions affected by AD pathology. Various methods for synthesizing SeNPs are explored, including chemical, physical and biological synthesis approaches. Based on the employment of algae, yeast, fungi, and plants, green methods offer a promising and biocompatible alternative for SeNPs production. In vitro studies have demonstrated the potential of SeNPs in reducing beta-amyloid aggregation and inhibiting tau hyperphosphorylation, providing evidence of their neuroprotective effects on neuronal cells. In vivo studies using transgenic mouse models and AD-induced symptoms have shown promising results, with SeNPs treatment leading to cognitive improvements and reduced amyloid plaque burden in the hippocampus. Looking ahead, future trends in SeNPs research involve developing innovative brain delivery strategies to enhance their therapeutic potential, exploring alternative animal models to complement traditional mouse studies, and investigating multi-targeted SeNPs formulations to address multiple aspects of AD pathology. Overall, SeNPs represent a promising avenue for AD treatment, and further research in this field may pave the way for effective and much-needed therapeutic interventions for individuals affected by this debilitating disease.
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Affiliation(s)
- David Vicente-Zurdo
- Dpto. Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain; Centre for Metabolomics and Bioanalysis (CEMBIO), Department of Chemistry and Biochemistry, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, 28660, Boadilla del Monte, Madrid, Spain.
| | - Noelia Rosales-Conrado
- Dpto. Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - María Eugenia León-González
- Dpto. Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain.
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10
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Asti AL, Crespi S, Rampino T, Zelini P, Gregorini M, Pascale A, Marchesi N, Saccucci S, Colombani C, Vitalini S, Iriti M. Yet another in vitro evidence that natural compounds introduced by diet have anti-amyloidogenic activities and can counteract neurodegenerative disease depending on aging. Nat Prod Res 2024; 38:861-866. [PMID: 36964661 DOI: 10.1080/14786419.2023.2192493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 03/11/2023] [Indexed: 03/26/2023]
Abstract
A major issue in Alzheimer's disease (AD) research is to find some new therapeutic drug which decrease Amyloid-beta (Aβ) aggregation. From a therapeutic point of view the major question is whether pharmacological inhibition of inflammation pathways will be able to safely reverse or slow the course of disease. Natural compounds are capable of binding to different targets implicated in AD and exert neuroprotective effects. Aim of this study was to evaluate the in vitro inhibition of Aβ1-42 fibrillogenesis in presence of Gallic acid, Rutin, Melatonin and ProvinolsTM . We performed the analysis with Transmission and Scanning Electron Microscopy, and with X-ray microanalysis. Samples treated with Rutin, that arises from phenylalanine via the phenylpropanoid pathway, show the best effective result obtained because a significantly fibril inhibition activity is detectable compared to the other compounds. Melatonin shows a better inhibitory activity than ProvinolsTM and Gallic acid at the considered concentrations.
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Affiliation(s)
- Anna Lia Asti
- Unit of Nephrology, Dialysis and Transplantation, Fondazione I.R.C.C.S. Policlinico San Matteo, Pavia, Italy
| | - Stefania Crespi
- Department of Earth Sciences Ardito Desio, University of Milan, Milan, Italy
| | - Teresa Rampino
- Unit of Nephrology, Dialysis and Transplantation, Fondazione I.R.C.C.S. Policlinico San Matteo, Pavia, Italy
| | - Paola Zelini
- Unit of Obstetrics and Gynecology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Marilena Gregorini
- Unit of Nephrology, Dialysis and Transplantation, Fondazione I.R.C.C.S. Policlinico San Matteo, Pavia, Italy
- Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
| | - Alessia Pascale
- Department of Drug Sciences, Pharmacology Section, University of Pavia, Pavia, Italy
| | - Nicoletta Marchesi
- Department of Drug Sciences, Pharmacology Section, University of Pavia, Pavia, Italy
| | | | - Carla Colombani
- Department of Agricultural and Environmental Sciences Territorial Production and Agroenergy, University of Milan, Milan, Italy
| | - Sara Vitalini
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy
| | - Marcello Iriti
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy
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11
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Bansal K, Singh V, Mishra S, Bajpai M. Articulating the Pharmacological and Nanotechnological Aspects of Genistein: Current and Future Prospectives. Curr Pharm Biotechnol 2024; 25:807-824. [PMID: 38902930 DOI: 10.2174/0113892010265344230919170611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 08/10/2023] [Accepted: 08/19/2023] [Indexed: 06/22/2024]
Abstract
Throughout the past several centuries, herbal constituents have been the subject of scientific interest and the latest research into their therapeutic potential is underway. Genistein is a soy-derived isoflavone found in huge amounts in soy, along with the plants of the Fabaceae family. Scientific studies have demonstrated the beneficial effects of genistein on various health conditions. Genistein presents a broad range of pharmacological activities, including anticancer, neuroprotective, cardioprotective, antiulcer, anti-diabetic, wound healing, anti-bacterial, antiviral, skin, and radioprotective effects. However, the hydrophobic nature of genistein results in constrained absorption and restricts its therapeutic potential. In this review, the number of nanocarriers for genistein delivery has been explored, such as polymeric nanoparticles, nanostructured lipid carriers, solid lipid nanoparticles, liposomes, micelles, transferosomes, and nanoemulsions and nanofibers. These nano-formulations of genistein have been utilized as a potential strategy for various disorders, employing a variety of ex vivo, in vitro, and in vivo models and various administration routes. This review concluded that genistein is a potential therapeutic agent for treating various diseases, including cancer, neurodegenerative disorders, cardiovascular disorders, obesity, diabetes, ulcers, etc., when formulated in suitable nanocarriers.
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Affiliation(s)
- Keshav Bansal
- Institute of Pharmaceutical Research, GLA University, Mathura, 281406, Uttar Pradesh, India
| | - Vanshita Singh
- Institute of Pharmaceutical Research, GLA University, Mathura, 281406, Uttar Pradesh, India
| | - Samiksha Mishra
- Institute of Pharmaceutical Research, GLA University, Mathura, 281406, Uttar Pradesh, India
| | - Meenakshi Bajpai
- Institute of Pharmaceutical Research, GLA University, Mathura, 281406, Uttar Pradesh, India
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12
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Chen M, Wang F, Lei H, Yang Z, Li C. In Silico Insights into Micro-Mechanism Understanding of Extracts of Taxus Chinensis Fruits Against Alzheimer's Disease. J Alzheimers Dis 2024; 97:727-740. [PMID: 38217605 DOI: 10.3233/jad-231066] [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: 01/15/2024]
Abstract
BACKGROUND The taxus chinensis fruit (TCF) shows promises in treatment of aging-related diseases such as Alzheimer's disease (AD). However, its related constituents and targets against AD have not been deciphered. OBJECTIVE This study was to uncover constituents and targets of TCF extracts against AD. METHODS An integrated approach including ultrasound extractions and constituent identification of TCF by UPLC-QE-MS/MS, target identification of constituents and AD by R data-mining from Pubchem, Drugbank and GEO databases, network construction, molecular docking and the ROC curve analysis was carried out. RESULTS We identified 250 compounds in TCF extracts, and obtained 3,231 known constituent targets and 5,326 differential expression genes of AD, and 988 intersection genes. Through the network construction and KEGG pathway analysis, 19 chemicals, 31 targets, and 11 biological pathways were obtained as core compounds, targets and pathways of TCF extracts against AD. Among these constituents, luteolin, oleic acid, gallic acid, baicalein, naringenin, lovastatin and rutin had obvious anti-AD effect. Molecular docking results further confirmed above results. The ROC AUC values of about 87% of these core targets of TCF extracts was greater than 0.5 in the two GEO chips of AD, especially 10 targets with ROC AUC values greater than 0.7, such as BCL2, CASP7, NFKBIA, HMOX1, CDK2, LDLR, RELA, and CCL2, which mainly referred to neuron apoptosis, response to oxidative stress and inflammation, fibroblast proliferation, etc.Conclusions:The TCF extracts have diverse active compounds that can act on the diagnostic genes of AD, which deserve further in-depth study.
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Affiliation(s)
- Meimei Chen
- College of Traditional Chinese Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
- Fujian Key Laboratory of TCM Health Status Identification, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
| | - Fengzhen Wang
- Certification Center for Chinese Physicians, State Administration of Traditional Chinese Medicine, Beijing, Beijing, China
| | - Huangwei Lei
- College of Traditional Chinese Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
- Fujian Key Laboratory of TCM Health Status Identification, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
| | - Zhaoyang Yang
- College of Traditional Chinese Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
- Fujian Key Laboratory of TCM Health Status Identification, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
| | - Candong Li
- College of Traditional Chinese Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
- Fujian Key Laboratory of TCM Health Status Identification, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
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13
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Monteiro KLC, de Aquino TM, da Silva-Júnior EF. Natural Compounds as Inhibitors of Aβ Peptide and Tau Aggregation. CNS & NEUROLOGICAL DISORDERS DRUG TARGETS 2024; 23:1234-1250. [PMID: 38018200 DOI: 10.2174/0118715273273539231114095300] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 10/08/2023] [Accepted: 10/16/2023] [Indexed: 11/30/2023]
Abstract
Neurodegenerative conditions like Alzheimer's disease (AD), Parkinson's disease (PD), and amyotrophic lateral sclerosis (ALS) encompass disorders characterized by the degeneration of neurons in specific circumstances. The quest for novel agents to influence these diseases, particularly AD, has unearthed various natural compounds displaying multifaceted activities and diverse pharmacological mechanisms. Given the ongoing extensive study of pathways associated with the accumulation of neurofibrillary aggregates and amyloid plaques, this paper aims to comprehensively review around 130 studies exploring natural products. These studies focus on inhibiting the formation of amyloid plaques and tau protein tangles, with the objective of potentially alleviating or delaying AD.
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Affiliation(s)
- Kadja Luana Chagas Monteiro
- Research Group on Therapeutic Strategies - GPET, Laboratory of Synthesis and Research in Medicinal Chemistry - LSPMED, Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceió, Alagoas, Brazil
| | - Thiago Mendonça de Aquino
- Research Group on Therapeutic Strategies - GPET, Laboratory of Synthesis and Research in Medicinal Chemistry - LSPMED, Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceió, Alagoas, Brazil
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14
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Kim S, Hyun DG, Nam Y, Shin SJ, Im D, Kim HS, Leem SH, Park HH, Kim BH, Park YH, Cho E, Goddard WA, Kim DH, Kim HI, Moon M. Genipin and pyrogallol: Two natural small molecules targeting the modulation of disordered proteins in Alzheimer's disease. Biomed Pharmacother 2023; 168:115770. [PMID: 37865990 DOI: 10.1016/j.biopha.2023.115770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 10/03/2023] [Accepted: 10/18/2023] [Indexed: 10/24/2023] Open
Abstract
Alzheimer's disease (AD) is characterized by the aggregation of disordered proteins, such as amyloid beta (Aβ) and tau, leading to neurotoxicity and disease progression. Despite numerous efforts, effective inhibitors of Aβ and tau aggregates have not been developed. Thus, we aimed to screen natural small molecules from crude extracts that target various pathologies and are prescribed for patients with neurological diseases. In this study, we screened 162 natural small molecules prescribed for neurological diseases and identified genipin and pyrogallol as hit compounds capable of simultaneously regulating the aggregation of Aβ and tau K18. Moreover, we confirmed the dual modulatory effects of these compounds on the reduction of amyloid-mediated neurotoxicity in vitro and the disassembly of preformed Aβ42 and tau K18 fibrils. Furthermore, we observed the alleviatory effects of genipin and pyrogallol against AD-related pathologies in triple transgenic AD mice. Molecular dynamics and docking simulations revealed the molecular interaction dynamics of genipin and pyrogallol with Aβ42 and tau K18, providing insights into their suppression of aggregation. Our findings suggest the therapeutic potential of genipin and pyrogallol as dual modulators for the treatment of AD by inhibiting aggregation or promoting dissociation of Aβ and tau.
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Affiliation(s)
- Sujin Kim
- Department of Biochemistry, College of Medicine, Konyang University, Daejeon 35365, the Republic of Korea; Research Institute for Dementia Science, Konyang University, Daejeon 35365, the Republic of Korea
| | - Da Gyeong Hyun
- Department of Chemistry, Korea University, Seoul 02841, the Republic of Korea; Center for Proteogenome Research, Korea University, Seoul 02841, the Republic of Korea; Single Cell Analysis Laboratory, Korea University, Seoul 02841, the Republic of Korea; Division of Chemistry and Chemical Engineering and Materials Process and Simulation Center, California Institute of Technology, Pasadena, CA 91125, United States
| | - Yunkwon Nam
- Department of Biochemistry, College of Medicine, Konyang University, Daejeon 35365, the Republic of Korea
| | - Soo Jung Shin
- Department of Biochemistry, College of Medicine, Konyang University, Daejeon 35365, the Republic of Korea
| | - Dongjoon Im
- Department of Chemistry, Korea University, Seoul 02841, the Republic of Korea; Center for Proteogenome Research, Korea University, Seoul 02841, the Republic of Korea; Single Cell Analysis Laboratory, Korea University, Seoul 02841, the Republic of Korea; Division of Chemistry and Chemical Engineering and Materials Process and Simulation Center, California Institute of Technology, Pasadena, CA 91125, United States
| | - Hyeon Soo Kim
- Department of Biochemistry, College of Medicine, Konyang University, Daejeon 35365, the Republic of Korea
| | - Seol Hwa Leem
- Department of Biochemistry, College of Medicine, Konyang University, Daejeon 35365, the Republic of Korea
| | - Hyun Ha Park
- Department of Biochemistry, College of Medicine, Konyang University, Daejeon 35365, the Republic of Korea
| | - Byeong-Hyeon Kim
- Department of Biochemistry, College of Medicine, Konyang University, Daejeon 35365, the Republic of Korea
| | - Yong Ho Park
- Department of Biochemistry, College of Medicine, Konyang University, Daejeon 35365, the Republic of Korea
| | - Eunbi Cho
- Department of Pharmacology, School of Medicine, Konkuk University, Seoul 05029, the Republic of Korea
| | - William A Goddard
- Division of Chemistry and Chemical Engineering and Materials Process and Simulation Center, California Institute of Technology, Pasadena, CA 91125, United States
| | - Dong Hyun Kim
- Department of Pharmacology, School of Medicine, Konkuk University, Seoul 05029, the Republic of Korea.
| | - Hugh I Kim
- Department of Chemistry, Korea University, Seoul 02841, the Republic of Korea; Center for Proteogenome Research, Korea University, Seoul 02841, the Republic of Korea; Single Cell Analysis Laboratory, Korea University, Seoul 02841, the Republic of Korea; Division of Chemistry and Chemical Engineering and Materials Process and Simulation Center, California Institute of Technology, Pasadena, CA 91125, United States.
| | - Minho Moon
- Department of Biochemistry, College of Medicine, Konyang University, Daejeon 35365, the Republic of Korea; Research Institute for Dementia Science, Konyang University, Daejeon 35365, the Republic of Korea.
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15
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Wu W, Huang J, Han P, Zhang J, Wang Y, Jin F, Zhou Y. Research Progress on Natural Plant Molecules in Regulating the Blood-Brain Barrier in Alzheimer's Disease. Molecules 2023; 28:7631. [PMID: 38005352 PMCID: PMC10674591 DOI: 10.3390/molecules28227631] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 11/07/2023] [Accepted: 11/14/2023] [Indexed: 11/26/2023] Open
Abstract
Alzheimer's disease (AD) is a prevalent neurodegenerative disorder. With the aging population and the continuous development of risk factors associated with AD, it will impose a significant burden on individuals, families, and society. Currently, commonly used therapeutic drugs such as Cholinesterase inhibitors, N-methyl-D-aspartate antagonists, and multiple AD pathology removal drugs have been shown to have beneficial effects on certain pathological conditions of AD. However, their clinical efficacy is minimal and they are associated with certain adverse reactions. Furthermore, the underlying pathological mechanism of AD remains unclear, posing a challenge for drug development. In contrast, natural plant molecules, widely available, offer multiple targeting pathways and demonstrate inherent advantages in modifying the typical pathologic features of AD by influencing the blood-brain barrier (BBB). We provide a comprehensive review of recent in vivo and in vitro studies on natural plant molecules that impact the BBB in the treatment of AD. Additionally, we analyze their specific mechanisms to offer novel insights for the development of safe and effective targeted drugs as well as guidance for experimental research and the clinical application of drugs for the prevention and treatment of AD.
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Affiliation(s)
- Weidong Wu
- Basic Theory of Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin 150040, China; (W.W.); (J.Z.); (Y.W.)
| | - Jiahao Huang
- Department of Chinese Pharmacology, Heilongjiang University of Chinese Medicine, Harbin 150040, China;
| | - Pengfei Han
- Science and Education Section, Zhangjiakou First Hospital, Zhangjiakou 075041, China;
| | - Jian Zhang
- Basic Theory of Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin 150040, China; (W.W.); (J.Z.); (Y.W.)
| | - Yuxin Wang
- Basic Theory of Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin 150040, China; (W.W.); (J.Z.); (Y.W.)
| | - Fangfang Jin
- Department of Internal Medicine, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Yanyan Zhou
- Basic Theory of Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin 150040, China; (W.W.); (J.Z.); (Y.W.)
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16
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Ma Y, Fan C, Wang Y, Li W, Jiang H, Yang W. Comprehensive analysis of mRNAs in the cerebral cortex in APP/PS1 double-transgenic mice with Alzheimer's disease based on high-throughput sequencing of N4-acetylcytidine. Funct Integr Genomics 2023; 23:267. [PMID: 37548859 DOI: 10.1007/s10142-023-01192-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 07/12/2023] [Accepted: 07/29/2023] [Indexed: 08/08/2023]
Abstract
N4-acetylcytidine (ac4C), a significant modified nucleoside, participates in the development of many diseases. Messenger RNAs (mRNAs) contain most of the information of the genome and are the molecules that transmit information from genes to proteins. Alzheimer's disease (AD) is a progressive neurodegenerative disease in which fibrillar amyloid plaques are present. However, it remains unknown how mRNA ac4C modification affects the development of AD. In the current study, ac4C-modified mRNAs were comprehensively analyzed in AD mice by ac4C-RIP-seq and RNA-seq. Next, a protein-protein interaction (PPI) network was constructed to examine the relationships between the genes with differential ac4C modification levels and their RNA expression levels. The differentially expressed genes (DEGs) acquired above were subjected to Gene Ontology (GO) enrichment and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis to further analyze the molecular mechanisms in AD. In total, 3312 significant ac4C peaks were found on 2512 mRNAs, 1241 of which were hyperacetylated and 1271 of which were hypoacetylated. In addition, 956 mRNAs with differential expression were found, including 520 upregulated mRNAs and 436 downregulated mRNAs. Overall, 134 mRNAs with simultaneous changes at the ac4C levels as well as RNA expression levels were identified via joint analysis. Then, through PPI network construction and functional enrichment analysis, 37 key mRNAs were screened, which were predominantly enriched in GABAergic synapses and the PI3K/AKT signaling pathway. The significant difference in the abundance of mRNA ac4C modification indicates that this modification is associated with AD progression, which may provide insight for more investigations of the potential mechanisms.
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Affiliation(s)
- Yanzhen Ma
- Experimental Center of Clinical Research, The First Affiliated Hospital of Anhui University of Chinese Medicine, Anhui, China
| | - Chang Fan
- Experimental Center of Clinical Research, The First Affiliated Hospital of Anhui University of Chinese Medicine, Anhui, China
| | - Yongzhong Wang
- Key Laboratory of Xin'an Medicine of the Ministry of Education, Anhui University of Chinese Medicine, Hefei, Anhui, China
- Department of Pharmacy, The First Affiliated Hospital of Anhui University of Chinese Medicine, Anhui, China
| | - Weizu Li
- Department of Pharmacology, Basic Medicine College, Key Laboratory of Anti-Inflammatory and Immunopharmacology, Ministry of Education, Anhui Medical University, Hefei, China
| | - Hui Jiang
- Experimental Center of Clinical Research, The First Affiliated Hospital of Anhui University of Chinese Medicine, Anhui, China.
- Key Laboratory of Xin'an Medicine of the Ministry of Education, Anhui University of Chinese Medicine, Hefei, Anhui, China.
| | - Wenming Yang
- Key Laboratory of Xin'an Medicine of the Ministry of Education, Anhui University of Chinese Medicine, Hefei, Anhui, China.
- Encephalopathy Center, The First Affiliated Hospital of Anhui University of Chinese Medicine, Anhui, China.
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17
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Plekratoke K, Boonyarat C, Monthakantirat O, Nualkaew N, Wangboonskul J, Awale S, Chulikhit Y, Daodee S, Khamphukdee C, Chaiwiwatrakul S, Waiwut P. The Effect of Ethanol Extract from Mesua ferrea Linn Flower on Alzheimer's Disease and Its Underlying Mechanism. Curr Issues Mol Biol 2023; 45:4063-4079. [PMID: 37232728 DOI: 10.3390/cimb45050259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/27/2023] [Accepted: 05/03/2023] [Indexed: 05/27/2023] Open
Abstract
The effects of Mesua ferrea Linn flower (MFE) extract on the pathogenic cascade of Alzheimer's disease (AD) were determined by an in vitro and cell culture model in the search for a potential candidate for the treatment of AD. The 2,2'-azino-bis-3-ethylbenzthiazoline-6-sulphonic acid (ABTS) and 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay exhibited that the MFE extract had antioxidant activities. According to the Ellman and the thioflavin T method's result, the extracts could inhibit acetylcholinesterase and β-amyloid (Aβ) aggregation. Studies on neuroprotection in cell culture found that the MFE extract could reduce the death of human neuroblastoma cells (SH-SY5Y) caused by H2O2 and Aβ. Western blot analysis exhibited that the MFE extract alleviated H2O2-induced neuronal cell damage by downregulating the pro-apoptotic proteins, including cleaved caspase-3, Bax, and by enhancing the expression of anti-apoptotic markers including MCl1, BClxl, and survivin. Moreover, MFE extract inhibited the expression of APP, presenilin 1, and BACE, and increased the expression of neprilysin. In addition, the MFE extract could enhance scopolamine-induced memory deficit in mice. Overall, results showed that the MFE extract had several modes of action related to the AD pathogenesis cascade, including antioxidants, anti-acetylcholinesterase, anti-Aβ aggregation, and neuroprotection against oxidative stress and Aβ. Therefore, the M. ferrea L. flower might be a possibility for further development as a medication for AD.
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Affiliation(s)
- Kusawadee Plekratoke
- Biomedical Science Program, Graduate School, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Chantana Boonyarat
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | | | - Natsajee Nualkaew
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Jinda Wangboonskul
- Faculty of Pharmaceutical Sciences, Thummasart University, Bangkok 10330, Thailand
| | - Suresh Awale
- Division of Natural Drug Discovery, Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Yaowared Chulikhit
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Supawadee Daodee
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Charinya Khamphukdee
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Suchada Chaiwiwatrakul
- Department of English, Faculty of Humanities and Social Sciences, Ubon Ratchathani Rajabhat University, Ubon Ratchathani 34000, Thailand
| | - Pornthip Waiwut
- Faculty of Pharmaceutical Sciences, Ubon Ratchathani University, Ubon Ratchathani 34190, Thailand
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18
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Naomi R, Yazid MD, Teoh SH, Balan SS, Shariff H, Kumar J, Bahari H, Embong H. Dietary Polyphenols as a Protection against Cognitive Decline: Evidence from Animal Experiments; Mechanisms and Limitations. Antioxidants (Basel) 2023; 12:antiox12051054. [PMID: 37237920 DOI: 10.3390/antiox12051054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 04/27/2023] [Accepted: 05/03/2023] [Indexed: 05/28/2023] Open
Abstract
Emerging evidence suggests that cognitive impairments may result from various factors, such as neuroinflammation, oxidative stress, mitochondrial damage, impaired neurogenesis, synaptic plasticity, blood-brain barrier (BBB) disruption, amyloid β protein (Aβ) deposition, and gut dysbiosis. Meanwhile, dietary polyphenol intake in a recommended dosage has been suggested to reverse cognitive dysfunction via various pathways. However, excessive intake of polyphenols could trigger unwanted adverse effects. Thus, this review aims to outline possible causes of cognitive impairments and how polyphenols alleviate memory loss via various pathways based on in vivo experimental studies. Thus, to identify potentially relevant articles, the keywords (1) nutritional polyphenol intervention NOT medicine AND neuron growth OR (2) dietary polyphenol AND neurogenesis AND memory impairment OR (3) polyphenol AND neuron regeneration AND memory deterioration (Boolean operators) were used in the Nature, PubMed, Scopus, and Wiley online libraries. Based on the inclusion and exclusion criteria, 36 research papers were selected to be further reviewed. The outcome of all the studies included supports the statement of appropriate dosage by taking into consideration gender differences, underlying conditions, lifestyle, and causative factors for cognitive decline, which will significantly boost memory power. Therefore, this review recapitulates the possible causes of cognitive decline, the mechanism of polyphenols involving various signaling pathways in modulating the memory, gut dysbiosis, endogenous antioxidants, bioavailability, dosage, and safety efficacy of polyphenols. Hence, this review is expected to provide a basic understanding of therapeutic development for cognitive impairments in the future.
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Affiliation(s)
- Ruth Naomi
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Muhammad Dain Yazid
- Centre for Tissue Engineering and Regenerative Medicine (CTERM), Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
| | - Soo Huat Teoh
- Advanced Medical and Dental Institute, Universiti Sains Malaysia, Penang 13200, Malaysia
| | - Santhra Segaran Balan
- Department of Diagnostic and Allied Health Sciences, Faculty of Health and Life Sciences, Management and Science University, Shah Alam 40100, Malaysia
| | - Halim Shariff
- Faculty of Health Sciences, University Technology Mara (UITM) Pulau Pinang, Bertam Campus, Kepala Batas 13200, Malaysia
| | - Jaya Kumar
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
| | - Hasnah Bahari
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Hashim Embong
- Department of Emergency Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
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19
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Ververis A, Ioannou K, Kyriakou S, Violaki N, Panayiotidis MI, Plioukas M, Christodoulou K. Sideritis scardica Extracts Demonstrate Neuroprotective Activity against Aβ 25-35 Toxicity. PLANTS (BASEL, SWITZERLAND) 2023; 12:1716. [PMID: 37111938 PMCID: PMC10142657 DOI: 10.3390/plants12081716] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/10/2023] [Accepted: 04/13/2023] [Indexed: 06/19/2023]
Abstract
Alzheimer's disease (AD) is the most prevalent neurodegenerative condition, primarily affecting seniors. Despite the significant time and money spent over the past few decades, no therapy has been developed yet. In recent years, the research has focused on ameliorating the cytotoxic amyloid beta (Aβ) peptide aggregates and the increased elevated oxidative stress, two interconnected main AD hallmarks. Medicinal plants constitute a large pool for identifying bioactive compounds or mixtures with a therapeutic effect. Sideritis scardica (SS) has been previously characterized as neuroprotective toward AD. We investigated this ability of SS by generating eight distinct solvent fractions, which were chemically characterized and assessed for their antioxidant and neuroprotective potential. The majority of the fractions were rich in phenolics and flavonoids, and all except one showed significant antioxidant activity. Additionally, four SS extracts partly rescued the viability in Aβ25-35-treated SH-SY5Y human neuroblastoma cells, with the initial aqueous extract being the most potent and demonstrating similar activity in retinoic-acid-differentiated cells as well. These extracts were rich in neuroprotective substances, such as apigenin, myricetin-3-galactoside, and ellagic acid. Our findings indicate that specific SS mixtures can benefit the pharmaceutical industry to develop herbal drugs and functional food products that may alleviate AD.
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Affiliation(s)
- Antonis Ververis
- Neurogenetics Department, The Cyprus Institute of Neurology and Genetics, Nicosia 2371, Cyprus
| | - Kristia Ioannou
- Neurogenetics Department, The Cyprus Institute of Neurology and Genetics, Nicosia 2371, Cyprus
| | - Sotiris Kyriakou
- Department of Cancer Genetics, Therapeutics & Ultrastructural Pathology, The Cyprus Institute of Neurology & Genetics, Nicosia 2371, Cyprus
| | - Niki Violaki
- Department of Life and Health Sciences, School of Sciences and Engineering, University of Nicosia, Nicosia 2417, Cyprus
| | - Mihalis I. Panayiotidis
- Department of Cancer Genetics, Therapeutics & Ultrastructural Pathology, The Cyprus Institute of Neurology & Genetics, Nicosia 2371, Cyprus
| | - Michael Plioukas
- Department of Life and Health Sciences, School of Sciences and Engineering, University of Nicosia, Nicosia 2417, Cyprus
| | - Kyproula Christodoulou
- Neurogenetics Department, The Cyprus Institute of Neurology and Genetics, Nicosia 2371, Cyprus
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20
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Fadzil MAM, Mustar S, Rashed AA. The Potential Use of Honey as a Neuroprotective Agent for the Management of Neurodegenerative Diseases. Nutrients 2023; 15:nu15071558. [PMID: 37049399 PMCID: PMC10096917 DOI: 10.3390/nu15071558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/16/2023] [Accepted: 03/21/2023] [Indexed: 04/14/2023] Open
Abstract
As the global population ages, there is an increasing research on managing neurodegenerative diseases that mainly affect the elderly. Honey is one of the natural products and functional foods widely studied for its neuroprotective properties. This review investigates honey's effectiveness as a neuroprotective agent through in vitro, in vivo, and clinical research. The articles were browsed from three databases (PubMed, ScienceDirect, and Scopus) between the years of 2012 and 2022 using the keywords "honey" crossed with "neurodegenerative". Out of the 16 articles, six in vitro, eight in vivo, one combination study, and one clinical intervention were compiled. Among the various types of honey studied, the Tualang and Thyme honey exhibited the highest antioxidant, anti-inflammatory, and anticholinesterase activity, leading to the prevention and management of multiple neurodegenerative diseases such as Alzheimer's disease. The neuroprotective properties of honey are primarily attributed to its high polyphenol content, with quercetin and gallic acid being the most prominent. This review compiled considerable evidence of the anti-neurodegenerative properties of honey presented by in vitro and in vivo studies. However, more clinical intervention studies are required to support these findings further.
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Affiliation(s)
- Mohammad Adi Mohammad Fadzil
- Nutrition Unit (NU), Nutrition, Metabolism and Cardiovascular Research Centre (NMCRC), Institute for Medical Research (IMR), National Institutes of Health (NIH), Ministry of Health Malaysia (MOH), No. 1, Jalan Setia Murni U13/52, Seksyen U13 Setia Alam, Shah Alam 40170, Malaysia
| | - Suraiami Mustar
- Nutrition Unit (NU), Nutrition, Metabolism and Cardiovascular Research Centre (NMCRC), Institute for Medical Research (IMR), National Institutes of Health (NIH), Ministry of Health Malaysia (MOH), No. 1, Jalan Setia Murni U13/52, Seksyen U13 Setia Alam, Shah Alam 40170, Malaysia
| | - Aswir Abd Rashed
- Nutrition Unit (NU), Nutrition, Metabolism and Cardiovascular Research Centre (NMCRC), Institute for Medical Research (IMR), National Institutes of Health (NIH), Ministry of Health Malaysia (MOH), No. 1, Jalan Setia Murni U13/52, Seksyen U13 Setia Alam, Shah Alam 40170, Malaysia
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21
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Bhuia MS, Rahaman MM, Islam T, Bappi MH, Sikder MI, Hossain KN, Akter F, Al Shamsh Prottay A, Rokonuzzman M, Gürer ES, Calina D, Islam MT, Sharifi-Rad J. Neurobiological effects of gallic acid: current perspectives. Chin Med 2023; 18:27. [PMID: 36918923 PMCID: PMC10015939 DOI: 10.1186/s13020-023-00735-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 03/07/2023] [Indexed: 03/16/2023] Open
Abstract
Gallic acid (GA) is a phenolic molecule found naturally in a wide range of fruits as well as in medicinal plants. It has many health benefits due to its antioxidant properties. This study focused on finding out the neurobiological effects and mechanisms of GA using published data from reputed databases. For this, data were collected from various sources, such as PubMed/Medline, Science Direct, Scopus, Google Scholar, SpringerLink, and Web of Science. The findings suggest that GA can be used to manage several neurological diseases and disorders, such as Alzheimer's disease, Parkinson's disease, strokes, sedation, depression, psychosis, neuropathic pain, anxiety, and memory loss, as well as neuroinflammation. According to database reports and this current literature-based study, GA may be considered one of the potential lead compounds to treat neurological diseases and disorders. More preclinical and clinical studies are required to establish GA as a neuroprotective drug.
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Affiliation(s)
- Md. Shimul Bhuia
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, 8100 Bangladesh
| | - Md. Mizanur Rahaman
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, 8100 Bangladesh
| | - Tawhida Islam
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, 8100 Bangladesh
| | - Mehedi Hasan Bappi
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, 8100 Bangladesh
| | - Md. Iqbal Sikder
- Department of Pharmacy, Southern University Bangladesh, Chattogram, 4210 Bangladesh
| | - Kazi Nadim Hossain
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, 8100 Bangladesh
| | - Fatama Akter
- Department of Pharmacy, Southern University Bangladesh, Chattogram, 4210 Bangladesh
| | - Abdullah Al Shamsh Prottay
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, 8100 Bangladesh
| | - Md. Rokonuzzman
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, 8100 Bangladesh
| | - Eda Sönmez Gürer
- Faculty of Pharmacy, Department of Pharmacognosy, Sivas Cumhuriyet University, Sivas, Turkey
| | - Daniela Calina
- Department of Clinical Pharmacy, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Muhammad Torequl Islam
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, 8100 Bangladesh
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22
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Galzitskaya OV, Grishin SY, Glyakina AV, Dovidchenko NV, Konstantinova AV, Kravchenko SV, Surin AK. The Strategies of Development of New Non-Toxic Inhibitors of Amyloid Formation. Int J Mol Sci 2023; 24:3781. [PMID: 36835194 PMCID: PMC9964835 DOI: 10.3390/ijms24043781] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/08/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023] Open
Abstract
In recent years, due to the aging of the population and the development of diagnostic medicine, the number of identified diseases associated with the accumulation of amyloid proteins has increased. Some of these proteins are known to cause a number of degenerative diseases in humans, such as amyloid-beta (Aβ) in Alzheimer's disease (AD), α-synuclein in Parkinson's disease (PD), and insulin and its analogues in insulin-derived amyloidosis. In this regard, it is important to develop strategies for the search and development of effective inhibitors of amyloid formation. Many studies have been carried out aimed at elucidating the mechanisms of amyloid aggregation of proteins and peptides. This review focuses on three amyloidogenic peptides and proteins-Aβ, α-synuclein, and insulin-for which we will consider amyloid fibril formation mechanisms and analyze existing and prospective strategies for the development of effective and non-toxic inhibitors of amyloid formation. The development of non-toxic inhibitors of amyloid will allow them to be used more effectively for the treatment of diseases associated with amyloid.
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Affiliation(s)
- Oxana V. Galzitskaya
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia
| | - Sergei Y. Grishin
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia
- Institute of Environmental and Agricultural Biology (X-BIO), Tyumen State University, 625003 Tyumen, Russia
| | - Anna V. Glyakina
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia
- Institute of Mathematical Problems of Biology RAS, The Branch of Keldysh Institute of Applied Mathematics, Russian Academy of Sciences, 142290 Pushchino, Russia
| | - Nikita V. Dovidchenko
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia
| | - Anastasiia V. Konstantinova
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia
- Faculty of Biotechnology, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Sergey V. Kravchenko
- Institute of Environmental and Agricultural Biology (X-BIO), Tyumen State University, 625003 Tyumen, Russia
| | - Alexey K. Surin
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia
- The Branch of the Institute of Bioorganic Chemistry, Russian Academy of Sciences, 142290 Pushchino, Russia
- State Research Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Russia
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23
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Luu LK, Thangsiri S, Sahasakul Y, Aursalung A, Inthachat W, Temviriyanukul P, On-Nom N, Chupeerach C, Suttisansanee U. Nutrients, Phytochemicals and In Vitro Disease Prevention of Nephelium hypoleucum Kurz Fruit. Nutrients 2023; 15:nu15040950. [PMID: 36839313 PMCID: PMC9960393 DOI: 10.3390/nu15040950] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/03/2023] [Accepted: 02/10/2023] [Indexed: 02/17/2023] Open
Abstract
Nephelium hypoleucum Kurz is an evergreen tree in the Sapindaceae family, mostly found in the forests of some Southeast Asia countries, especially Thailand. The lack of biological information regarding this tree has led to inappropriate agricultural management, conservation and utilization. Thus, this study aims to examine the nutritional composition, organic acid and phenolic profiles and in vitro health properties through several key enzyme inhibitions against some civilization diseases including Alzheimer's disease (β-secretase (BACE-1), butyrylcholinesterase (BChE) and acetylcholinesterase (AChE)), obesity (lipase), hypertension (angiotensin-converting enzyme (ACE)) and diabetes (dipeptidyl peptidase-IV (DPP-IV), α-amylase and α-glucosidase) on the aril (flesh) part of N. hypoleucum Kurz fruit. The remaining fruit parts including the pericarp (peel) and seed were also assessed as sources of potential phenolics as well as key enzyme inhibitors. As results, carbohydrate (17.18 g) was found to be a major source of energy (74.80 kcal) in the aril (100 g fresh weight), with trace amounts of protein (0.78 g) and fat (0.32 g). The fruit aril also contained high insoluble dietary fiber (5.02 g) and vitamin C (11.56 mg), while potassium (215.82 mg) was detected as the major mineral. Organic acid profile indicated that the aril was rich in citric acid, while the phenolic profile suggested predominant quercetin and kaempferol. Interestingly, high gallic acid contents were detected in both pericarp and seed, with the latter 3.2-fold higher than the former. The seed also possessed the highest total phenolic content (TPC, 149.45 mg gallic acid equivalent/g dry weight), while total anthocyanin content (TAC, 0.21 mg cyanidin-3-O-glucoside equivalent/g dry weight) was only detected in pericarp. High TPC also led to high enzyme inhibitory activities in seed including BACE-1, AChE, BChE, ACE, DPP-IV and α-glucosidase. Interestingly, aril with the highest α-amylase inhibition suggested strong inhibitory distribution, predominantly from quercetin and kaempferol. Lipase inhibitory activities were only detected in the aril and pericarp, suggesting the biological function of these two phenolics and possibly anthocyanins.
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24
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Ajmal MR. Protein Misfolding and Aggregation in Proteinopathies: Causes, Mechanism and Cellular Response. Diseases 2023; 11:30. [PMID: 36810544 PMCID: PMC9944956 DOI: 10.3390/diseases11010030] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 02/02/2023] [Accepted: 02/05/2023] [Indexed: 02/11/2023] Open
Abstract
Proteins are central to life functions. Alterations in the structure of proteins are reflected in their function. Misfolded proteins and their aggregates present a significant risk to the cell. Cells have a diverse but integrated network of protection mechanisms. Streams of misfolded proteins that cells are continuously exposed to must be continually monitored by an elaborated network of molecular chaperones and protein degradation factors to control and contain protein misfolding problems. Aggregation inhibition properties of small molecules such as polyphenols are important as they possess other beneficial properties such as antioxidative, anti-inflammatory, and pro-autophagic properties and help neuroprotection. A candidate with such desired features is important for any possible treatment development for protein aggregation diseases. There is a need to study the protein misfolding phenomenon so that we can treat some of the worst kinds of human ailments related to protein misfolding and aggregation.
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Affiliation(s)
- Mohammad Rehan Ajmal
- Physical Biochemistry Research Laboratory, Biochemistry Department, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
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25
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Chen YY, Chen SY, Lin JA, Yen GC. Preventive Effect of Indian Gooseberry (Phyllanthus emblica L.) Fruit Extract on Cognitive Decline in High-Fat Diet (HFD)-Fed Rats. Mol Nutr Food Res 2023; 67:e2200791. [PMID: 36738163 DOI: 10.1002/mnfr.202200791] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 12/27/2022] [Indexed: 02/05/2023]
Abstract
SCOPE Methylglyoxal (MG)-derived advanced glycation end products (AGEs) directly bind to the receptor for advanced glycation end products (RAGE), subsequently exacerbating obesity and obesity-induced cognitive decline. Indian gooseberry (Phyllanthus emblica L.) fruit has antiobesity properties. However, the underlying mechanism by which Indian gooseberry fruit prevents obesity-induced cognitive decline remains unclear. METHODS AND RESULTS This study aims to investigate the preventive effect of a water extract of Indian gooseberry fruit (WEIG) and its bioactive compound gallic acid (GA) on the obesity-induced cognitive decline through MG suppression and gut microbiota modulation in high-fat diet (HFD)-fed rats. Trapping MG, WEIG, and GA significantly ameliorate fat accumulation in adipose tissue and learning and memory deficits. Mechanistically, WEIG and GA administration effectively reduces brain MG and AGE levels and subsequently reduces insulin resistance, inflammatory cytokines, MDA production, and Alzheimer's disease-related proteins, but increases both antioxidant enzyme activities and anti-inflammatory cytokine with inhibiting RAGE, MAPK, and NF-κB levels in HFD-fed rats. Additionally, WEIG and GA supplementation increases the relative abundances of Bacteroidetes, Gammaproteobacteria, and Parasutterella, which negatively correlate with MG, inflammatory cytokine, and Alzheimer's disease-related protein expressions. CONCLUSION This novel finding provides a possible mechanism by which WEIG prevents obesity-induced cognitive decline through the gut-brain axis.
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Affiliation(s)
- Ying-Yin Chen
- Department of Food Science and Biotechnology, National Chung Hsing University, 145 Xingda Road, Taichung, 40227, Taiwan
| | - Sheng-Yi Chen
- Department of Food Science and Biotechnology, National Chung Hsing University, 145 Xingda Road, Taichung, 40227, Taiwan
| | - Jer-An Lin
- Graduate Institute of Food Safety, National Chung Hsing University, 145 Xingda Road, Taichung, 40227, Taiwan
| | - Gow-Chin Yen
- Department of Food Science and Biotechnology, National Chung Hsing University, 145 Xingda Road, Taichung, 40227, Taiwan
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26
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Roy R, Paul S. Illustrating the Effect of Small Molecules Derived from Natural Resources on Amyloid Peptides. J Phys Chem B 2023; 127:600-615. [PMID: 36638829 DOI: 10.1021/acs.jpcb.2c07607] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The onset of amyloidogenic diseases is associated with the misfolding and aggregation of proteins. Despite extensive research, no effective therapeutics are yet available to treat these chronic degenerative diseases. Targeting the aggregation of disease-specific proteins is regarded as a promising new approach to treat these diseases. In the past few years, rapid progress in this field has been made in vitro, in vivo, and in silico to generate potential drug candidates, ranging from small molecules to polymers to nanoparticles. Small molecular probes, mostly those derived from natural sources, have been of particular interest among amyloid inhibitors. Here, we summarize some of the most important natural small molecular probes which can inhibit the aggregation of Aβ, hIAPP, and α-syn peptides and discuss how their binding efficacy and preference for the peptides vary with their structure and conformation. This provides a comprehensive idea of the crucial factors which should be incorporated into the future design of novel drug candidates useful for the treatment of amyloid diseases.
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Affiliation(s)
- Rituparna Roy
- Department of Chemistry, Indian Institute of Technology, Guwahati Assam-781039, India
| | - Sandip Paul
- Department of Chemistry, Indian Institute of Technology, Guwahati Assam-781039, India
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27
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A Concise Profile of Gallic Acid-From Its Natural Sources through Biological Properties and Chemical Methods of Determination. Molecules 2023; 28:molecules28031186. [PMID: 36770851 PMCID: PMC9919014 DOI: 10.3390/molecules28031186] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/18/2023] [Accepted: 01/20/2023] [Indexed: 01/27/2023] Open
Abstract
Nature is a valuable source of anti-oxidants that have a health-promoting effect by inhibiting various undesirable changes leading to cell degradation and, consequently, potential disease ailments. One of them is gallic acid which has been used as a healing agent since ancient times. Currently, due to various beneficial properties, this compound is considered to be one of the main phenolic acids of great importance in numerous industries. It is commonly used as a substance protecting against the harmful effects of UV radiation, an astringent in cosmetic preparations, and a preservative in food products. Therefore, gallic acid is now deemed essential for both human health and industry. Increasingly better methods of its isolation and analysis are being developed, and new solutions are being sought to increase its production. This review, presenting a concise characterization of gallic acid, updates the knowledge about its various biological activities and methods used for its isolation and determination, including chromatographic and non-chromatographic methods.
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28
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Varesi A, Campagnoli LIM, Carrara A, Pola I, Floris E, Ricevuti G, Chirumbolo S, Pascale A. Non-Enzymatic Antioxidants against Alzheimer's Disease: Prevention, Diagnosis and Therapy. Antioxidants (Basel) 2023; 12:180. [PMID: 36671042 PMCID: PMC9855271 DOI: 10.3390/antiox12010180] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/06/2023] [Accepted: 01/08/2023] [Indexed: 01/13/2023] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder characterized by progressive memory loss and cognitive decline. Although substantial research has been conducted to elucidate the complex pathophysiology of AD, the therapeutic approach still has limited efficacy in clinical practice. Oxidative stress (OS) has been established as an early driver of several age-related diseases, including neurodegeneration. In AD, increased levels of reactive oxygen species mediate neuronal lipid, protein, and nucleic acid peroxidation, mitochondrial dysfunction, synaptic damage, and inflammation. Thus, the identification of novel antioxidant molecules capable of detecting, preventing, and counteracting AD onset and progression is of the utmost importance. However, although several studies have been published, comprehensive and up-to-date overviews of the principal anti-AD agents harboring antioxidant properties remain scarce. In this narrative review, we summarize the role of vitamins, minerals, flavonoids, non-flavonoids, mitochondria-targeting molecules, organosulfur compounds, and carotenoids as non-enzymatic antioxidants with AD diagnostic, preventative, and therapeutic potential, thereby offering insights into the relationship between OS and neurodegeneration.
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Affiliation(s)
- Angelica Varesi
- Department of Biology and Biotechnology, University of Pavia, 27100 Pavia, Italy
| | | | - Adelaide Carrara
- Department of Internal Medicine and Therapeutics, University of Pavia, 27100 Pavia, Italy
| | - Ilaria Pola
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
| | - Elena Floris
- Department of Internal Medicine and Therapeutics, University of Pavia, 27100 Pavia, Italy
| | - Giovanni Ricevuti
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
| | - Salvatore Chirumbolo
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, 37129 Verona, Italy
| | - Alessia Pascale
- Department of Drug Sciences, Section of Pharmacology, University of Pavia, 27100 Pavia, Italy
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29
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Kipkemoi DJ, Ireri AM, Ngugi MP. Cognition Enhancing Potential of Aqueous Leaf Extract of Amaranthus dubius in Mice. J Evid Based Integr Med 2023; 28:2515690X231211661. [PMID: 37960857 PMCID: PMC10644747 DOI: 10.1177/2515690x231211661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/08/2023] [Accepted: 10/15/2023] [Indexed: 11/15/2023] Open
Abstract
Amaranthus dubius is a vegetable consumed for its nutritional content in Kenya. In herbal medicine, A. dubius is utilized to relief fever, anemia and hemorrhage. Additionally, it is utilized to manage cognitive dysfunction and is considered to augment brain function, but there is no empirical evidence to support this claim. The contemporary study investigated cognitive enhancing potential of A. dubius in mice model of Alzheimer's disease (AD)-like dementia induced with ketamine. Cognitively damaged mice were treated with aqueous extract of A. dubius leaf upon which passive avoidance task (PAT) was used to assess the cognitive performance. At the end of passive avoidance test, brains of the mice were dissected to evaluate the possibility of the extract to inhibit hallmarks that propagate AD namely oxidative stress and acetylcholinesterase activity. Additionally, characterization of secondary metabolites was done using liquid chromatograph- mass spectrometry analysis. During PAT test, extract-treated mice showed significantly increased step-through latencies than AD mice, depicting ability of A. dubius to reverse ketamine-induced cognitive decline. Further, the extract remarkably lowered malondialdehyde levels to normal levels and effectively inhibited acetylcholinesterase enzyme. The study showed that A. dubius extract is endowed with phytoconstituents that possess anti-oxidant and anticholinesterase activities. Thus, this study confirmed promising therapeutic effects of 200, 300 and 400 mg/kg bw of A. dubius extract with potential to alleviate cognitive disarray observed in AD.
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Affiliation(s)
- Daisy Jepkosgei Kipkemoi
- Department of Biochemistry, Microbiology and Biotechnology, School of Pure and Applied Sciences, Kenyatta University, Nairobi, Kenya
| | - Anthony Murithi Ireri
- Department of Educational Psychology, School of Education, Kenyatta University, Nairobi, Kenya
| | - Mathew Piero Ngugi
- Department of Biochemistry, Microbiology and Biotechnology, School of Pure and Applied Sciences, Kenyatta University, Nairobi, Kenya
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30
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Abd El-Aziz NM, Shehata MG, Alsulami T, Badr AN, Elbakatoshy MR, Ali HS, El-Sohaimy SA. Characterization of Orange Peel Extract and Its Potential Protective Effect against Aluminum Chloride-Induced Alzheimer's Disease. Pharmaceuticals (Basel) 2022; 16:ph16010012. [PMID: 36678510 PMCID: PMC9864618 DOI: 10.3390/ph16010012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/09/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Alzheimer's disease (AD) is a devastating neurodegenerative disorder without a cure. Hence, developing an effective treatment or protective agent is crucial for public health. The present study aims to characterize orange peel extract (OPE) through in vitro and in silico studies. Furthermore, it examines the protective effect of OPE against experimentally-induced Alzheimer's disease in rats. The total phenolic and flavonoid content of OPE was 255.86 ± 1.77 and 52.06 ± 1.74 (mg/100 g), respectively. Gallic acid, the common polyphenol in OPE detected by HPLC was 3388.60 μg/100 g. OPE antioxidant IC50 was 67.90 ± 1.05, 60.48 ± 0.91, and 63.70 ± 0.30 by DPPH, ABTS and Hydroxyl radical scavenging activity methods, respectively. In vitro anti-acetylcholinesterase (AChE) IC50 was 0.87 ± 0.025 mg/mL for OPE and 2.45 ± 0.001 mg/mL for gallic acid. Molecular docking analysis for human AChE (4EY7) with donepezil, gallic acid, and acetylcholine showed binding energy ΔG values of -9.47, -3.72, and -5.69 Kcal/mol, respectively. Aluminum chloride injection (70 mg/Kg/day for 6 weeks) induced Alzheimer's-like disease in male rats. OPE (100 and 200 mg/kg/d) and gallic acid (50 mg/kg/d) were administered orally to experimental animals for 6 weeks in addition to aluminum chloride injection (as protective). OPE was found to protect against aluminum chloride-induced neuronal damage by decreasing both gene expression and activity of acetylcholinesterase (AChE) and a decrease in amyloid beta (Aβ42) protein level, thiobarbituric acid-reactive substances (TBARS), and nitric oxide (NO), and increased reduced glutathione (GSH) level and activity of the antioxidant enzymes in the brain tissues. Additionally, gene expressions for amyloid precursor protein (APP) and beta secretase enzyme (BACE1) were downregulated, whereas those for presinilin-2 (PSEN2) and beta cell lymphoma-2 (BCL2) were upregulated. Furthermore, the reverse of mitochondrial alternation and restored brain ultrastructure might underlie neuronal dysfunction in AD. In conclusion, our exploration of the neuroprotective effect of OPE in vivo reveals that OPE may be helpful in ameliorating brain oxidative stress, hence protecting from Alzheimer's disease progression.
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Affiliation(s)
- Nourhan Mohammad Abd El-Aziz
- Department of Food Technology, Arid Lands Cultivation Research Institute (ALCRI), City of Scientific Research and Technological Applications (SRTA-City), Alexandria 21934, Egypt
- Correspondence:
| | - Mohamed Gamal Shehata
- Department of Food Technology, Arid Lands Cultivation Research Institute (ALCRI), City of Scientific Research and Technological Applications (SRTA-City), Alexandria 21934, Egypt
- Food Research Section, R&D Division, Abu Dhabi Agriculture and Food Safety Authority (ADAFSA), Abu Dhabi P.O. Box 52150, United Arab Emirates
| | - Tawfiq Alsulami
- Department of Food Science & Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ahmed Noah Badr
- Food Toxicology and Contaminants Department, National Research Centre, Dokki, Cairo 12622, Egypt
| | - Marwa Ramadan Elbakatoshy
- Department of Food Technology, Arid Lands Cultivation Research Institute (ALCRI), City of Scientific Research and Technological Applications (SRTA-City), Alexandria 21934, Egypt
| | - Hatem Salama Ali
- Food Science Department, National Research Centre, Dokki, Cairo 12622, Egypt
| | - Sobhy Ahmed El-Sohaimy
- Department of Food Technology, Arid Lands Cultivation Research Institute (ALCRI), City of Scientific Research and Technological Applications (SRTA-City), Alexandria 21934, Egypt
- Department of Technology and Organization of Public Catering, Institute of Sport, Tourism and Service, South Ural State University (SUSU), 454080 Chelyabinsk, Russia
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31
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Hypothermia evoked by stimulation of medial preoptic nucleus protects the brain in a mouse model of ischaemia. Nat Commun 2022; 13:6890. [PMID: 36371436 PMCID: PMC9653397 DOI: 10.1038/s41467-022-34735-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 11/04/2022] [Indexed: 11/13/2022] Open
Abstract
Therapeutic hypothermia at 32-34 °C during or after cerebral ischaemia is neuroprotective. However, peripheral cold sensor-triggered hypothermia is ineffective and evokes vigorous counteractive shivering thermogenesis and complications that are difficult to tolerate in awake patients. Here, we show in mice that deep brain stimulation (DBS) of warm-sensitive neurones (WSNs) in the medial preoptic nucleus (MPN) produces tolerable hypothermia. In contrast to surface cooling-evoked hypothermia, DBS mice exhibit a torpor-like state without counteractive shivering. Like hypothermia evoked by chemogenetic activation of WSNs, DBS in free-moving mice elicits a rapid lowering of the core body temperature to 32-34 °C, which confers significant brain protection and motor function reservation. Mechanistically, activation of WSNs contributes to DBS-evoked hypothermia. Inhibition of WSNs prevents DBS-evoked hypothermia. Maintaining the core body temperature at normothermia during DBS abolishes DBS-mediated brain protection. Thus, the MPN is a DBS target to evoke tolerable therapeutic hypothermia for stroke treatment.
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Recent Progress in Research on Mechanisms of Action of Natural Products against Alzheimer's Disease: Dietary Plant Polyphenols. Int J Mol Sci 2022; 23:ijms232213886. [PMID: 36430365 PMCID: PMC9695301 DOI: 10.3390/ijms232213886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/05/2022] [Accepted: 11/07/2022] [Indexed: 11/16/2022] Open
Abstract
Alzheimer's disease (AD) is an incurable degenerative disease of the central nervous system and the most common type of dementia in the elderly. Despite years of extensive research efforts, our understanding of the etiology and pathogenesis of AD is still highly limited. Nevertheless, several hypotheses related to risk factors for AD have been proposed. Moreover, plant-derived dietary polyphenols were also shown to exert protective effects against neurodegenerative diseases such as AD. In this review, we summarize the regulatory effects of the most well-known plant-derived dietary polyphenols on several AD-related molecular mechanisms, such as amelioration of oxidative stress injury, inhibition of aberrant glial cell activation to alleviate neuroinflammation, inhibition of the generation and promotion of the clearance of toxic amyloid-β (Aβ) plaques, inhibition of cholinesterase enzyme activity, and increase in acetylcholine levels in the brain. We also discuss the issue of bioavailability and the potential for improvement in this regard. This review is expected to encourage further research on the role of natural dietary plant polyphenols in the treatment of AD.
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Walnut Prevents Cognitive Impairment by Regulating the Synaptic and Mitochondrial Dysfunction via JNK Signaling and Apoptosis Pathway in High-Fat Diet-Induced C57BL/6 Mice. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27165316. [PMID: 36014555 PMCID: PMC9414791 DOI: 10.3390/molecules27165316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 08/18/2022] [Accepted: 08/19/2022] [Indexed: 11/30/2022]
Abstract
This study was conducted to evaluate the protective effect of Juglans regia (walnut, Gimcheon 1ho cultivar, GC) on high-fat diet (HFD)-induced cognitive dysfunction in C57BL/6 mice. The main physiological compounds of GC were identified as pedunculagin/casuariin isomer, strictinin, tellimagrandin I, ellagic acid-O-pentoside, and ellagic acid were identified using UPLC Q-TOF/MS analysis. To evaluate the neuro-protective effect of GC, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), 2′,7′-dichlorodihydrofluorecein diacetate (DCF-DA) analysis were conducted in H2O2 and high glucose-induced neuronal PC12 cells and hippocampal HT22 cells. GC presented significant cell viability and inhibition of reactive oxygen species (ROS) production. GC ameliorated behavioral and memory dysfunction through Y-maze, passive avoidance, and Morris water maze tests. In addition, GC reduced white adipose tissue (WAT), liver fat mass, and serum dyslipidemia. To assess the inhibitory effect of antioxidant system deficit, lipid peroxidation, ferric reducing antioxidant power (FRAP), and advanced glycation end products (AGEs) were conducted. Administration of GC protected the antioxidant damage against HFD-induced diabetic oxidative stress. To estimate the ameliorating effect of GC, acetylcholine (ACh) level, acetylcholinesterase (AChE) activity, and expression of AChE and choline acetyltransferase (ChAT) were conducted, and the supplements of GC suppressed the cholinergic system impairment. Furthermore, GC restored mitochondrial dysfunction by regulating the mitochondrial ROS production and mitochondrial membrane potential (MMP) levels in cerebral tissues. Finally, GC ameliorated cerebral damage by synergically regulating the protein expression of the JNK signaling and apoptosis pathway. These findings suggest that GC could provide a potential functional food source to improve diabetic cognitive deficits and neuronal impairments.
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Wang Y, Wang D, Lv H, Dong Q, Li J, Geng W, Wang J, Liu F, Jia L, Wang Y. Modulation of the gut microbiota and glycometabolism by a probiotic to alleviate amyloid accumulation and cognitive impairments in AD rats. Mol Nutr Food Res 2022; 66:e2200265. [PMID: 35975737 DOI: 10.1002/mnfr.202200265] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 07/08/2022] [Indexed: 11/05/2022]
Abstract
SCOPE Regulating the gut microecology by probiotics is an efficient strategy to rational prevention and treatment of Alzheimer's disease (AD). However, there is currently a lack of well-known probiotic species in the protection against AD, and the involved mechanism has not been clearly interpreted. METHODS AND RESULTS Herein, Lactobacillus plantarum MA2 (MA2), a functional probiotic isolated from traditional Chinese Tibetan kefir grains, was demonstrated to improve the cognitive deficits and anxiety-like behaviors in the D-galactose/AlCl3 induced AD rats, and attenuate the neuronal degeneration and Aβ accumulation in the brain. Moreover, we found MA2 could alleviate the intestinal mucosal impairments, and impede the activation of microglia and neuroinflammation through TLR4/MYD88/NLRP3 signaling pathway. 16S rRNA sequencing and metabolomic analysis indicated that MA2 reshaped the gut microbiota structure and composition, and remarkably modulated the glycometabolism. In that case, the EPS (exopolysaccharides) that derived from MA2 was furtherly proved with inhibitory effects on the Aβ42 aggregation and amyloid-induced cytotoxicity. CONCLUSION MA2 or MA2 EPS may be used as functional food and nutritional supplement for regulating the gut microbiota and metabolism disorders in AD. This study is of great significance to develop new intervention and therapeutic strategy on AD using probiotics and their metabolites. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Yuanwang Wang
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, P. R. China
| | - Dehua Wang
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, P. R. China
| | - Houjiao Lv
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, P. R. China
| | - Qinchen Dong
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, P. R. China
| | - Jiajia Li
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, P. R. China
| | - Weitao Geng
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, P. R. China
| | - Jinju Wang
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, P. R. China
| | - Fufeng Liu
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, P. R. China
| | - Longgang Jia
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, P. R. China
| | - Yanping Wang
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, P. R. China
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Kubo K, Watanabe H, Kumeta H, Aizawa T, Seki C, Nakano H, Tokuraku K, Uwai K. Chemical analysis of amyloid β aggregation inhibitors derived from Geranium thunbergii. Bioorg Med Chem 2022; 68:116840. [PMID: 35661848 DOI: 10.1016/j.bmc.2022.116840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/18/2022] [Accepted: 05/18/2022] [Indexed: 11/17/2022]
Abstract
Amyloid β (Aβ) aggregates in the brains of patients with Alzheimer's disease (AD) and accumulates via oligomerization and subsequent fiber elongation processes. These toxicity-induced neuronal damage and shedding processes advance AD progression. Therefore, Aβ aggregation-inhibiting substances may contribute to the prevention and treatment of AD. We screened for Aβ42 aggregation inhibitory activity using various plant extracts and compounds, and found high activity for a Geranium thunbergii extract (EC50 = 18 μg/mL). Therefore, we screened for Aβ42 aggregation inhibitors among components of a G. thunbergii extract and investigated their chemical properties in this study. An active substance was isolated from the ethanol extract of G. thunbergii based on the Aβ42 aggregation inhibitory activity as an index, and the compound was identified as geraniin (1) based on spectral data. However, although geraniin showed in vitro aggregation-inhibition activity, no binding to Aβ42 was observed via saturation transfer difference-nuclear magnetic resonance (STD-NMR). In contrast, the hydrolysates gallic acid (2) and corilagin (5) showed aggregation-inhibiting activity and binding was observed via STD-NMR. Therefore, the hydrolysates produced under the conditions of the activity test may contribute to the Aβ42 aggregation-inhibition activity of G. thunbergii extracts. Geraniin derivatives may help prevent and treat AD.
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Affiliation(s)
- Kenji Kubo
- Graduate School of Engineering, Muroran Institute of Technology, 27-1Mizumoto-cho, Muroran, Hokkaido 050-8585, Japan
| | - Hikaru Watanabe
- Graduate School of Engineering, Muroran Institute of Technology, 27-1Mizumoto-cho, Muroran, Hokkaido 050-8585, Japan
| | - Hiroyuki Kumeta
- Graduate Schol of Life Science, Hokaido University, Kita 10, Nishi 8, Kita-ku, Saporo, Hokkaido 060-0808, Japan
| | - Tomoyasu Aizawa
- Graduate Schol of Life Science, Hokaido University, Kita 10, Nishi 8, Kita-ku, Saporo, Hokkaido 060-0808, Japan
| | - Chigusa Seki
- Graduate School of Engineering, Muroran Institute of Technology, 27-1Mizumoto-cho, Muroran, Hokkaido 050-8585, Japan
| | - Hiroto Nakano
- Graduate School of Engineering, Muroran Institute of Technology, 27-1Mizumoto-cho, Muroran, Hokkaido 050-8585, Japan
| | - Kiyotaka Tokuraku
- Graduate School of Engineering, Muroran Institute of Technology, 27-1Mizumoto-cho, Muroran, Hokkaido 050-8585, Japan
| | - Koji Uwai
- Graduate School of Engineering, Muroran Institute of Technology, 27-1Mizumoto-cho, Muroran, Hokkaido 050-8585, Japan.
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Catalpol Ameliorates Neurotoxicity in N2a/APP695swe Cells and APP/PS1 Transgenic Mice. Neurotox Res 2022; 40:961-972. [PMID: 35699892 DOI: 10.1007/s12640-022-00524-4] [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: 02/05/2022] [Revised: 05/20/2022] [Accepted: 05/21/2022] [Indexed: 10/18/2022]
Abstract
Alzheimer's disease (AD) causes progressive decline of memory and cognitive deficits. Because of its complicated pathogenesis, the prevention and therapy of AD remain an enormous challenge. It has been reported that catalpol possessed neuroprotective effects against AD. However, the involved mechanism still needs to be intensively studied. Therefore, the effects of catalpol on N2a/APP695swe cells and APP/PS1 mice were identified in the current study. Catalpol could improve cytotoxicity according to CCK-8 assay and ameliorate cellular morphological changes in N2a/APP695swe cells. Neuronal structural damage in the hippocampal CA1 region of APP/PS1 AD mice was improved according to HE staining and immunohistochemistry of NeuN. Meanwhile, catalpol administration ameliorated cognitive deficits confirmed by behavior performance of APP/PS1 mice. Hoechst 33,342 staining and Annexin V-FITC/PI double staining demonstrated that catalpol could reduce apoptosis in N2a/APP695swe cells. Likewise, TUNEL staining also manifested that catalpol significantly reduced apoptosis in hippocampal CA1 region of APP/PS1 mice. Catalpol administration also could improve mitochondrial functions indicated by the ameliorative mitochondrial morphology, the decreased ROS generation, and the increased MMP in N2a/APP695swe cells. Subsequently, catalpol restrained oligomerization of Aβ1-42, verified by a reduced ThT fluorescence dose- and time-dependently. Additionally, both Aβ1-40 and Aβ1-42 aggregation were decreased in N2a/APP695swe cells and APP/PS1 mice administrated with catalpol confirmed by ELISA and western blot. Western blot also showed that catalpol facilitated the phosphorylation of AKT and GSK3β, and impeded the expression of BACE1 both in vivo and in vitro. Finally, a slight alteration in lactylation, 2-hydroxyisobutyrylation, and phosphorylation were found in N2a/APP695swe cells treated with catalpol. Together, these findings manifested that catalpol served a neuroprotective effect in AD and might be a novel and expecting prophylactic or curative candidate for AD or neurodegenerative diseases therapy.
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Li H, Liu Y, Wang Z, Xie Y, Yang L, Zhao Y, Tian R. Mass spectrometry-based ganglioside profiling provides potential insights into Alzheimer's disease development. J Chromatogr A 2022; 1676:463196. [PMID: 35716462 DOI: 10.1016/j.chroma.2022.463196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/31/2022] [Accepted: 06/01/2022] [Indexed: 01/01/2023]
Abstract
Gangliosides are a family of glycosphingolipids which are particularly enriched in the nervous system. They play crucial roles in neuroprotection and neurological diseases. Alzheimer's disease (AD) is a neurodegenerative disease with cognitive, judgment and memory dysfunction. In this study, a mass spectrometry-based data-dependent acquisition method assisted with fragmentation characteristics screening by computer algorithm was developed for qualitative and quantitative analysis of gangliosides at low concentration. The developed method was applied to obtain detailed ganglioside species content in hippocampus of model mice (APPswe/PS1dE9 transgenic mice) with AD at 3- to 8-month-old. Up-regulated acetylated and N-acetylgalactosaminylated ganglioside species, and the down-regulated major gangliosides were observed with the development of AD from early to late stage. We speculated that deterioration of AD may be related to the acetylation/N-acetylgalactosaminylation transformation of complex gangliosides due to the inhibition of GD3 synthase activity. Moreover, the ganglioside species di-O-Ac-GT1a (d36:1), O-Ac-GD1b (d36:1) and O-Ac-GD1b (d36:0) were considered as the time-coursed biomarkers, and O-Ac-GT1a (d36:2) could be a candidate for early diagnosis of AD.
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Affiliation(s)
- Hua Li
- SUSTech Core Research Facilities, Southern University of Science and Technology, Shenzhen, 518055 China
| | - Yilian Liu
- Department of Chemistry, College of Science, Southern University of Science and Technology, Shenzhen, 518055 China
| | - Zhe Wang
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Yuping Xie
- National Center for Protein Sciences Beijing, State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Lifeomics, Beijing 102206 China
| | - Lijun Yang
- Department of Chemistry, College of Science, Southern University of Science and Technology, Shenzhen, 518055 China; Department of Oncology, The First Affiliated Hospital of SUSTech and Shenzhen People's Hospital, Shenzhen, 518020, China
| | - Yanni Zhao
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China.
| | - Ruijun Tian
- Department of Chemistry, College of Science, Southern University of Science and Technology, Shenzhen, 518055 China.
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Temviriyanukul P, Kittibunchakul S, Trisonthi P, Kunkeaw T, Inthachat W, Siriwan D, Suttisansanee U. Mangifera indica ‘Namdokmai’ Prevents Neuronal Cells from Amyloid Peptide Toxicity and Inhibits BACE-1 Activities in a Drosophila Model of Alzheimer’s Amyloidosis. Pharmaceuticals (Basel) 2022; 15:ph15050591. [PMID: 35631418 PMCID: PMC9146065 DOI: 10.3390/ph15050591] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 05/02/2022] [Accepted: 05/06/2022] [Indexed: 02/04/2023] Open
Abstract
Alzheimer’s disease (AD) is a progressive neurological illness with few effective treatments. Thus, ameliorating the effects of AD using natural products has attracted global attention with promising efficacy and safety. In this study, ten tropical fruits including Ananas comosus ‘Phulae’, Ananas comosus ‘Pattavia’, Carica papaya ‘Khaekdum’, Carica papaya ‘Khaeknuan’, Durio zibethinus ‘Monthong’, Durio zibethinus ‘Chanee’, Psidium guajava ‘Kimju’, Psidium guajava ‘Keenok’, Mangifera indica ‘Kaew’ and Mangifera indica ‘Namdokmai’ were screened for their inhibitory activities against the key enzymes, cholinesterases and β-secretase (BACE-1), involved in AD pathogenesis. The top three fruit extracts with promising in vitro anti-AD activities were further investigated using rat pheochromocytoma PC-12 neuronal cell line and Drosophila AD model. Data showed that M. indica ‘Kaew’, M. indica ‘Namdokmai’ and P. guajava ‘Kimju’ reduced Aβ1–42-mediated neurotoxicity by promoting glutathione-dependent enzymes, while M. indica ‘Namdokmai’ limited Aβ1–42 peptide formation via BACE-1 inhibition and amended locomotory behavior of the Drosophila AD model. Results indicated the potential anti-AD properties of tropical fruits, particularly M. indica ‘Namdokmai’ in the prevention of Aβ1–42-mediated neurotoxicity and as a BACE-1 blocker.
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Affiliation(s)
- Piya Temviriyanukul
- Food and Nutrition Academic and Research Cluster, Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand; (P.T.); (S.K.); (T.K.); (W.I.)
| | - Suwapat Kittibunchakul
- Food and Nutrition Academic and Research Cluster, Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand; (P.T.); (S.K.); (T.K.); (W.I.)
| | - Piyapat Trisonthi
- Institute of Food Research and Product Development, Kasetsart University, Bangkok 10900, Thailand;
| | - Thanit Kunkeaw
- Food and Nutrition Academic and Research Cluster, Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand; (P.T.); (S.K.); (T.K.); (W.I.)
| | - Woorawee Inthachat
- Food and Nutrition Academic and Research Cluster, Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand; (P.T.); (S.K.); (T.K.); (W.I.)
| | - Dalad Siriwan
- Institute of Food Research and Product Development, Kasetsart University, Bangkok 10900, Thailand;
- Correspondence: (D.S.); (U.S.)
| | - Uthaiwan Suttisansanee
- Food and Nutrition Academic and Research Cluster, Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand; (P.T.); (S.K.); (T.K.); (W.I.)
- Correspondence: (D.S.); (U.S.)
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Abbasalipour H, Hajizadeh Moghaddam A, Ranjbar M. Sumac and gallic acid-loaded nanophytosomes ameliorate hippocampal oxidative stress via regulation of Nrf2/Keap1 pathway in autistic rats. J Biochem Mol Toxicol 2022; 36:e23035. [PMID: 35307911 DOI: 10.1002/jbt.23035] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 01/05/2022] [Accepted: 03/02/2022] [Indexed: 11/07/2022]
Abstract
Autism spectrum disorders cover a range of neurodevelopmental disorders characterized by impairments in social interaction and cognitive deficits. Phenolic compound applications have been restricted due to their poor solubility, bioavailability, and low stability. This paper aimed to explore the neuroprotective effects of sumac and gallic acid-loaded nanophytosomes (GNP) on oxidative stress-induced cognitive impairment and Nrf2/Keap1 gene expression in the autism model. Valproic acid (VPA) was administered intraperitoneally at doses of 500 mg/kg to female rats during gestational 12.5 days (E12.5). The prenatal VPA-exposed rats were divided into five groups, including VPA, VPA treated with sumac, gallic acid (GA), sumac-loaded nanophytosome (SNP), and GNP at doses of 20 mg/kg for 4 weeks (n = 6). A novel object test was conducted and antioxidant parameters and Nrf2/Keap1gene expression were evaluated in the hippocampus. According to the obtained results, the rat model of autism exhibited recognition memory impairment. We observed an increase in glutathione peroxidase (GPx), glutathione reductase (GRx), superoxide dismutase (SOD), catalase (CAT) enzyme activity, total antioxidant capacity (TAC), and glutathione (GSH) levels. Furthermore, sumac and GNP improved recognition memory deficits and increased GPx, GRx, SOD, and CAT activities, GSH and TAC levels, and Nrf2/Keap1gene expression in the hippocampal area. Our results also suggested that SNP and GNP ameliorate VPA-induced learning and memory deficits more efficiently than sumac extract and pure GA by reducing oxidative stress, enhancing antioxidant enzyme activity, and Keap1/Nrf2 gene expression. The present study demonstrated that the utilization of SNP and GNP significantly improved recognition memory deficits.
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Affiliation(s)
- Haniyeh Abbasalipour
- Department of Biology, Faculty of Basic Sciences, University of Mazandaran, Babolsar, Iran
| | | | - Mojtaba Ranjbar
- Department of Microbial Biotechnology, Faculty of Biotechnology, Amol University of Special Modern Technologies, Amol, Iran
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Navarro-Hortal MD, Romero-Márquez JM, Esteban-Muñoz A, Sánchez-González C, Rivas-García L, Llopis J, Cianciosi D, Giampieri F, Sumalla-Cano S, Battino M, Quiles JL. Strawberry (Fragaria × ananassa cv. Romina) methanolic extract attenuates Alzheimer's beta amyloid production and oxidative stress by SKN-1/NRF and DAF-16/FOXO mediated mechanisms in C. elegans. Food Chem 2022; 372:131272. [PMID: 34628121 DOI: 10.1016/j.foodchem.2021.131272] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/28/2021] [Accepted: 09/28/2021] [Indexed: 12/19/2022]
Abstract
Bioactive compounds from strawberries have been associated with multiple healthy benefits. The present study aimed to assess chemical characterization of a methanolic extract of the Romina strawberry variety in terms of antioxidant capacity, polyphenols profile and chemical elements content. Additionally, potential toxicity, the effect on amyloid-β production and oxidative stress of the extract was in vivo evaluated in the experimental model Caenorhabditis elegans. Results revealed an important content in phenolic compounds (mainly ellagic acid and pelargonidin-3-glucoside) and minerals (K, Mg, P and Ca). The treatment with 100, 500 or 1000 μg/mL of strawberry extract did not show toxicity. On the contrary, the extract was able to delay amyloid β-protein induced paralysis, reduced amyloid-β aggregation and prevented oxidative stress. The potential molecular mechanisms present behind the observed results explored by RNAi technology revealed that DAF-16/FOXO and SKN-1/NRF2 signaling pathways were, at least partially, involved.
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Affiliation(s)
- María D Navarro-Hortal
- Department of Physiology, Institute of Nutrition and Food Technology ''José Mataix", 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", Biomedical Research Centre, University of Granada, Armilla, Avda. del Conocimiento s.n., 18100 Armilla, Spain
| | | | - Cristina Sánchez-González
- Department of Physiology, Institute of Nutrition and Food Technology ''José Mataix", 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", 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", 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
| | - Danila Cianciosi
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Francesca Giampieri
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia; Department of Clinical Sciences, Polytechnic University of Marche, Ancona 60131, Italy
| | - Sandra Sumalla-Cano
- Research Group on Foods, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Isabel Torres, 21, 39011 Santander, Spain
| | - Maurizio Battino
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona 60131, Italy; International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang 212013, China
| | - José L Quiles
- Department of Physiology, Institute of Nutrition and Food Technology ''José Mataix", 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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Phenolic Acids and Prevention of Cognitive Decline: Polyphenols with a Neuroprotective Role in Cognitive Disorders and Alzheimer's Disease. Nutrients 2022. [PMID: 35215469 DOI: 10.3390/nu14040819.] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Cognitive impairment, also known as cognitive decline, can occur gradually or suddenly and can be temporary or more permanent. It represents an increasingly important public health problem and can depend on normal aging or be linked to different neurodegenerative disorders, including Alzheimer's disease (AD). It is now well-established that lifestyle factors including dietary patterns play an important role in healthy aging as well as in the prevention of cognitive decline in later life. Among the natural compounds, dietary polyphenols including phenolic acids have been recently the focus of major attention, with their supplementation being associated with better cognitive status and prevention of cognitive decline. Despite their therapeutic potential, human studies investigating the relation between phenolic acids intake and cognitive outcomes are rather scarce. In this review, we provide preclinical evidence that different dietary polyphenols such as rosmarinic acid, ellagic acid, and cinnamic aldehyde can exert neuroprotective and pro-cognitive activities through different molecular mechanisms including the modulation of pro-oxidant and antioxidant machinery as well as inflammatory status. Future and more numerous in vivo studies are needed to strengthen the promising results obtained at the preclinical level. Despite the excellent pharmacokinetic properties of phenolic acids, which are able to be accumulated in the brain at pharmacologically relevant levels, future studies should also identify which among the different metabolites produced as a consequence of phenolic acids' consumption may be responsible for the potential neuroprotective effects of this subgroup of polyphenols.
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Caruso G, Godos J, Privitera A, Lanza G, Castellano S, Chillemi A, Bruni O, Ferri R, Caraci F, Grosso G. Phenolic Acids and Prevention of Cognitive Decline: Polyphenols with a Neuroprotective Role in Cognitive Disorders and Alzheimer's Disease. Nutrients 2022; 14:nu14040819. [PMID: 35215469 PMCID: PMC8875888 DOI: 10.3390/nu14040819] [Citation(s) in RCA: 70] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/10/2022] [Accepted: 02/11/2022] [Indexed: 02/07/2023] Open
Abstract
Cognitive impairment, also known as cognitive decline, can occur gradually or suddenly and can be temporary or more permanent. It represents an increasingly important public health problem and can depend on normal aging or be linked to different neurodegenerative disorders, including Alzheimer's disease (AD). It is now well-established that lifestyle factors including dietary patterns play an important role in healthy aging as well as in the prevention of cognitive decline in later life. Among the natural compounds, dietary polyphenols including phenolic acids have been recently the focus of major attention, with their supplementation being associated with better cognitive status and prevention of cognitive decline. Despite their therapeutic potential, human studies investigating the relation between phenolic acids intake and cognitive outcomes are rather scarce. In this review, we provide preclinical evidence that different dietary polyphenols such as rosmarinic acid, ellagic acid, and cinnamic aldehyde can exert neuroprotective and pro-cognitive activities through different molecular mechanisms including the modulation of pro-oxidant and antioxidant machinery as well as inflammatory status. Future and more numerous in vivo studies are needed to strengthen the promising results obtained at the preclinical level. Despite the excellent pharmacokinetic properties of phenolic acids, which are able to be accumulated in the brain at pharmacologically relevant levels, future studies should also identify which among the different metabolites produced as a consequence of phenolic acids' consumption may be responsible for the potential neuroprotective effects of this subgroup of polyphenols.
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Affiliation(s)
- Giuseppe Caruso
- Department of Drug and Health Sciences, University of Catania, 95125 Catania, Italy; (G.C.); (A.P.)
- Research Operative Unit of Neuropharmacology and Translational Neurosciences, Oasi Research Institute—IRCCS, 94018 Troina, Italy
| | - Justyna Godos
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (J.G.); (A.C.); (G.G.)
| | - Anna Privitera
- Department of Drug and Health Sciences, University of Catania, 95125 Catania, Italy; (G.C.); (A.P.)
| | - Giuseppe Lanza
- Clinical Neurophysiology Research Unit, Oasi Research Institute—IRCCS, 94018 Troina, Italy;
- Department of Surgery and Medical-Surgical Specialties, University of Catania, 95123 Catania, Italy
| | - Sabrina Castellano
- Department of Educational Sciences, University of Catania, 95124 Catania, Italy;
| | - Alessio Chillemi
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (J.G.); (A.C.); (G.G.)
| | - Oliviero Bruni
- Department of Developmental and Social Psychology, Sapienza University, 00185 Rome, Italy;
| | - Raffaele Ferri
- Sleep Research Centre, Department of Neurology IC, Oasi Research Institute—IRCCS, 94018 Troina, Italy;
| | - Filippo Caraci
- Department of Drug and Health Sciences, University of Catania, 95125 Catania, Italy; (G.C.); (A.P.)
- Research Operative Unit of Neuropharmacology and Translational Neurosciences, Oasi Research Institute—IRCCS, 94018 Troina, Italy
- Correspondence:
| | - Giuseppe Grosso
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (J.G.); (A.C.); (G.G.)
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43
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Ticinesi A, Mancabelli L, Carnevali L, Nouvenne A, Meschi T, Del Rio D, Ventura M, Sgoifo A, Angelino D. Interaction Between Diet and Microbiota in the Pathophysiology of Alzheimer's Disease: Focus on Polyphenols and Dietary Fibers. J Alzheimers Dis 2022; 86:961-982. [PMID: 35147544 DOI: 10.3233/jad-215493] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Animal studies increasingly indicate that the gut microbiota composition and function can be involved in the pathophysiology and progression of Alzheimer's disease (AD) at multiple levels. However, few studies have investigated this putative gut-brain axis in human beings, and none of them considered diet as a determinant of intestinal microbiota composition. Epidemiological studies highlight that a high intake of fruit and vegetables, such as that typical of the Mediterranean diet, can modulate AD progression. Thus, nutritional interventions are being increasingly studied as a possible non-pharmacological strategy to slow down the progression of AD. In particular, polyphenols and fibers represent the nutritional compounds with the higher potential of counterbalancing the pathophysiological mechanisms of dementia due to their antioxidant, anti-inflammatory, and anti-apoptotic properties. These actions are mediated by the gut microbiota, that can transform polyphenols and fibers into biologically active compounds including, among others, phenyl-γ-valerolactones, urolithins, butyrate, and other short-chain fatty acids. In this review, the complex mechanisms linking nutrition, gut microbiota composition, and pathophysiology of cognitive decline in AD are discussed, with a particular focus on the role of polyphenols and fibers. The gaps between pre-clinical and clinical studies are particularly emphasized, as well as the urgent need for studies comprehensively evaluating the link between nutrition, microbiome, and clinical aspects of AD.
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Affiliation(s)
- Andrea Ticinesi
- University of Parma, Microbiome Research Hub, Parma, Italy.,University of Parma, Department of Medicine and Surgery, Parma, Italy.,Parma University-Hospital, Geriatric-Rehabilitation Department, Parma, Italy
| | - Leonardo Mancabelli
- University of Parma, Department of Chemistry, Life Sciences and Environmental Sustainability, Parma, Italy
| | - Luca Carnevali
- University of Parma, Department of Chemistry, Life Sciences and Environmental Sustainability, Parma, Italy
| | - Antonio Nouvenne
- University of Parma, Microbiome Research Hub, Parma, Italy.,University of Parma, Department of Medicine and Surgery, Parma, Italy.,Parma University-Hospital, Geriatric-Rehabilitation Department, Parma, Italy
| | - Tiziana Meschi
- University of Parma, Microbiome Research Hub, Parma, Italy.,University of Parma, Department of Medicine and Surgery, Parma, Italy.,Parma University-Hospital, Geriatric-Rehabilitation Department, Parma, Italy
| | - Daniele Del Rio
- University of Parma, Microbiome Research Hub, Parma, Italy.,University of Parma, Department of Food and Drugs, Parma, Italy
| | - Marco Ventura
- University of Parma, Microbiome Research Hub, Parma, Italy.,University of Parma, Department of Chemistry, Life Sciences and Environmental Sustainability, Parma, Italy
| | - Andrea Sgoifo
- University of Parma, Microbiome Research Hub, Parma, Italy.,University of Parma, Department of Chemistry, Life Sciences and Environmental Sustainability, Parma, Italy
| | - Donato Angelino
- University of Teramo, Faculty of Bioscience and Technology for Food, Agriculture and Environment, Teramo, Italy
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44
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Dong X, Luo S, Hu D, Cao R, Wang Q, Meng Z, Feng Z, Zhou W, Song W. Gallic acid inhibits neuroinflammation and reduces neonatal hypoxic-ischemic brain damages. Front Pediatr 2022; 10:973256. [PMID: 36619526 PMCID: PMC9813953 DOI: 10.3389/fped.2022.973256] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Accepted: 12/02/2022] [Indexed: 12/24/2022] Open
Abstract
Neuroinflammation is a leading cause of secondary neuronal injury in neonatal hypoxic-ischemic encephalopathy (HIE). Regulation of neuroinflammation may be beneficial for treatment of HIE and its secondary complications. Gallic acid (GA) has been shown to have anti-inflammatory and antioxidant effects. In this report we found that oxygen-glucose deprivation and/reoxygenation (OGD/R)-induced cell death, and the generation of excessive reactive oxygen species (ROS) and inflammatory cytokines by microglia were inhibited by GA treatment. Furthermore, GA treatment reduced neuroinflammation and neuronal loss, and alleviated motor and cognitive impairments in rats with hypoxic-ischemic brain damage (HIBD). Together, our results reveal that GA is an effective regulator of neuroinflammation and has potential as a pharmaceutical intervention for HIE therapy.
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Affiliation(s)
- Xiangjun Dong
- Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Shuyue Luo
- Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Dongjie Hu
- Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Ruixue Cao
- Institute of Aging, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Zhejiang Provincial Clinical Research Center for Mental Disorders, School of Mental Health and Kangning Hospital, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Qunxian Wang
- Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Zijun Meng
- Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Zijuan Feng
- Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Weihui Zhou
- Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Weihong Song
- Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China.,Institute of Aging, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Zhejiang Provincial Clinical Research Center for Mental Disorders, School of Mental Health and Kangning Hospital, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.,Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou, China
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Araújo AR, Correa J, Dominguez-Arca V, Reis RL, Fernandez-Megia E, Pires RA. Functional Gallic Acid-Based Dendrimers as Synthetic Nanotools to Remodel Amyloid-β-42 into Noncytotoxic Forms. ACS APPLIED MATERIALS & INTERFACES 2021; 13:59673-59682. [PMID: 34874691 PMCID: PMC8704170 DOI: 10.1021/acsami.1c17823] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The self-assembly of amyloid-β (Aβ) generates cytotoxic oligomers linked to the onset and progression of Alzheimer's disease (AD). As many fundamental molecular pathways that control Aβ aggregation are yet to be unraveled, an important strategy to control Aβ cytotoxicity is the development of bioactive synthetic nanotools capable of interacting with the heterogeneous ensemble of Aβ species and remodel them into noncytotoxic forms. Herein, the synthesis of nanosized, functional gallic acid (Ga)-based dendrimers with a precise number of Ga at their surface is described. It is shown that these Ga-terminated dendrimers interact by H-bonding with monomeric/oligomeric Aβ species at their Glu, Ala, and Asp residues, promoting their remodeling into noncytotoxic aggregates in a process controlled by the Ga units. The multivalent presentation of Ga on the dendrimer surface enhances their ability to interact with Aβ, inhibiting the primary and secondary nucleation of Aβ fibrillization and disrupting the Aβ preformed fibrils.
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Affiliation(s)
- Ana R. Araújo
- 3B’s
Research Group, I3Bs − Research Institute on Biomaterials,
Biodegradables and Biomimetics, University
of Minho, Headquarters of the European Institute of Excellence on
Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial
da Gandra, 4805-017 Barco, Portugal
- ICVS/3B’s
− PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal
| | - Juan Correa
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CIQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
| | - Vicente Dominguez-Arca
- Biophysics
and Interfaces Group, Department of Applied Physics, Faculty of Physics, University of Santiago de Compostela, 15782 Santiago
de Compostela, Spain
| | - Rui L. Reis
- 3B’s
Research Group, I3Bs − Research Institute on Biomaterials,
Biodegradables and Biomimetics, University
of Minho, Headquarters of the European Institute of Excellence on
Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial
da Gandra, 4805-017 Barco, Portugal
- ICVS/3B’s
− PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal
| | - Eduardo Fernandez-Megia
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CIQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
| | - Ricardo A. Pires
- 3B’s
Research Group, I3Bs − Research Institute on Biomaterials,
Biodegradables and Biomimetics, University
of Minho, Headquarters of the European Institute of Excellence on
Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial
da Gandra, 4805-017 Barco, Portugal
- ICVS/3B’s
− PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal
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46
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Olive oil and wine as source of multi-target agents in the prevention of Alzheimer disease. Nutr Res Rev 2021; 36:140-154. [PMID: 34895363 DOI: 10.1017/s095442242100041x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Olive oil and wine are consumed daily worldwide and they constitute the fundamental pillars of the healthy Mediterranean diet. Polyphenolic compounds, naturally present in both olive oil and wine, are responsible for their beneficial properties. Current studies have shown the neuroprotective effects of polyphenols independently of their well-known antioxidant action. In this work, we have focused on reviewing the protective effect of polyphenols from extra virgin olive oil and wine in Alzheimer´s disease (AD), to emphasize that both food could be a possible therapeutic tool. Beneficial effects have been described in β-aggregation, neurofibrillary tangles, autophagy and mitochondrial function, as well as in cerebral insulin resistance. Furthermore, to date a harmful dose has not been described. Both preclinical and clinical works demonstrate that polyphenols act on neuropathological and cognitive disorders of AD, preventing or stopping the onset of this devastating disease. However, there are certain limitations in these studies, since it is very difficult to research diseases that lead to cognitive impairment. Although all the findings obtained are very encouraging, more studies should be carried out to use the polyphenols from olive oil and wine as therapeutic agents in the progression of AD. Therefore, more longitudinal studies in humans with a homogeneous cohort of patients are necessary to corroborate the efficacy of these nutraceuticals, as well as analyze which is the most appropriate dose for this purpose.
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47
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Navakkode S, Gaunt JR, Pavon MV, Bansal VA, Abraham RP, Chong YS, Ch'ng TH, Sajikumar S. Sex-specific accelerated decay in time/activity-dependent plasticity and associative memory in an animal model of Alzheimer's disease. Aging Cell 2021; 20:e13502. [PMID: 34796608 PMCID: PMC8672784 DOI: 10.1111/acel.13502] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 09/02/2021] [Accepted: 10/17/2021] [Indexed: 12/11/2022] Open
Abstract
Clinical studies have shown that female brains are more predisposed to neurodegenerative diseases such as Alzheimer's disease (AD), but the cellular and molecular mechanisms behind this disparity remain unknown. In several mouse models of AD, synaptic plasticity dysfunction is an early event and appears before significant accumulation of amyloid plaques and neuronal degeneration. However, it is unclear whether sexual dimorphism at the synaptic level contributes to the higher risk and prevalence of AD in females. Our studies on APP/PS1 (APPSwe/PS1dE9) mouse model show that AD impacts hippocampal long‐term plasticity in a sex‐specific manner. Long‐term potentiation (LTP) induced by strong tetanic stimulation (STET), theta burst stimulation (TBS) and population spike timing‐dependent plasticity (pSTDP) show a faster decay in AD females compared with age‐matched AD males. In addition, behavioural tagging (BT), a model of associative memory, is specifically impaired in AD females with a faster decay in memory compared with males. Together with the plasticity and behavioural data, we also observed an upregulation of neuroinflammatory markers, along with downregulation of transcripts that regulate cellular processes associated with synaptic plasticity and memory in females. Immunohistochemistry of AD brains confirms that female APP/PS1 mice carry a higher amyloid plaque burden and have enhanced microglial activation compared with male APP/PS1 mice. Their presence in the diseased mice also suggests a link between the impairment of LTP and the upregulation of the inflammatory response. Overall, our data show that synaptic plasticity and associative memory impairments are more prominent in females and this might account for the faster progression of AD in females.
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Affiliation(s)
- Sheeja Navakkode
- Lee Kong Chian School of Medicine Nanyang Technological University Singapore Singapore
- Department of Physiology National University of Singapore Singapore Singapore
| | - Jessica Ruth Gaunt
- Lee Kong Chian School of Medicine Nanyang Technological University Singapore Singapore
| | - Maria Vazquez Pavon
- Department of Physiology National University of Singapore Singapore Singapore
| | | | - Riya Prasad Abraham
- Department of Physiology National University of Singapore Singapore Singapore
| | - Yee Song Chong
- Department of Physiology National University of Singapore Singapore Singapore
| | - Toh Hean Ch'ng
- Lee Kong Chian School of Medicine Nanyang Technological University Singapore Singapore
- School of Biological Science Nanyang Technological University Singapore Singapore
| | - Sreedharan Sajikumar
- Department of Physiology National University of Singapore Singapore Singapore
- Healthy Longevity Translational Research Programme Yong Loo Lin School of Medicine National University of Singapore Singapore Singapore
- Life Sciences Institute Neurobiology Programme National University of Singapore Singapore Singapore
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48
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Andrade S, Loureiro JA, Pereira MDC. Influence of in vitro neuronal membranes on the anti-amyloidogenic activity of gallic acid: Implication for the therapy of Alzheimer's disease. Arch Biochem Biophys 2021; 711:109022. [PMID: 34461085 DOI: 10.1016/j.abb.2021.109022] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 07/31/2021] [Accepted: 08/23/2021] [Indexed: 11/16/2022]
Abstract
Molecules inhibiting the amyloid beta (Aβ) peptide aggregation and/or disaggregating mature fibrils are a promising approach for the Alzheimer's disease (AD) therapy, as the Aβ fibrillation is one of the key triggers of the disease. Gallic acid (GA) is a phenolic acid with anti-amyloidogenic activity against Aβ in buffered solutions. However, there is still no evidence of these properties in vivo. Given the rate of failures of AD drug development, there is a huge demand of replicating the in vivo environment in in vitro studies, thus allowing to stop earlier the study of molecules with no effect in vivo. Thus, this study aims to evaluate the effect of in vitro neuronal membranes on the GA's ability in preventing Aβ1-42 aggregation and disrupting preformed fibrils. To this end, liposomes were employed to mimic the cell membrane environment. The results reveal that the lipid membranes did not affect the GA's ability in inhibiting Aβ1-42 fibrillation. However, in vitro neuronal membranes modulate the GA-induced Aβ fibrils disaggregation, which may be related with the moderate affinity of the compound for the lipid membrane. Even so, GA presented strong anti-amyloidogenic properties in the cell membrane-like environment. This work highlights the promising value of GA on preventing and treating AD, thus justifying its study in animal models.
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Affiliation(s)
- Stéphanie Andrade
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
| | - Joana Angélica Loureiro
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal.
| | - Maria do Carmo Pereira
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal.
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49
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Xu H, Zhou Q, Liu B, Cheng KW, Chen F, Wang M. Neuroprotective Potential of Mung Bean ( Vigna radiata L.) Polyphenols in Alzheimer's Disease: A Review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:11554-11571. [PMID: 34551518 DOI: 10.1021/acs.jafc.1c04049] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Mung bean contains various neuroprotective polyphenols, so it might be a healthy food for Alzheimer's disease (AD) prevention. Totally, 19 major phenolic compounds were quantified in mung bean, including 10 phenolic acids and 9 flavonoids. After summarizing their contents and effective doses in rodent AD models, it was speculated that vitexin, isovitexin, sinapic acid, and ferulic acid might be the major bioactive compounds for mung bean-mediated neuroprotection. The mechanisms involved inhibition of β-amyloidogenesis, tau hyperphosphorylation, oxidative stress, and neuroinflammation, and promotion of autophagy and acetylcholinesterase enzyme activity. Notably, the neuroprotective phenolic profile in mung bean changed after germination, with decreased vitexin and isovitexin, and increased rutin, isoquercitrin, isorhamnetin, and caffeic acid detected. However, only studies of individual phenolic compounds in mung bean are published at present. Hence, further studies are needed to elucidate the neuroprotective activities and mechanisms of extractions of mung bean seeds and sprouts, and the synergism between different phenolic compounds.
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Affiliation(s)
- Hui Xu
- College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, China
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
- Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China
| | - Qian Zhou
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
- Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China
| | - Bin Liu
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
- Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China
| | - Ka-Wing Cheng
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
- Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China
| | - Feng Chen
- College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, China
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
- Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China
| | - Mingfu Wang
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
- Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China
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50
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Tualang Honey: A Decade of Neurological Research. Molecules 2021; 26:molecules26175424. [PMID: 34500857 PMCID: PMC8434576 DOI: 10.3390/molecules26175424] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 09/01/2021] [Accepted: 09/02/2021] [Indexed: 02/06/2023] Open
Abstract
Tualang honey has been shown to protect against neurodegeneration, leading to improved memory/learning as well as mood. In addition, studies have also demonstrated its anti-inflammatory and antioxidant properties. However, a substantial part of this research lacks systematization, and there seems to be a tendency to start anew with every study. This review presents a decade of research on Tualang honey with a particular interest in the underlying mechanisms related to its effects on the central nervous system. A total of 28 original articles published between 2011 and 2020 addressing the central nervous system (CNS) effects of Tualang honey were analysed. We identified five main categories, namely nootropic, antinociceptive, stress-relieving, antidepressant, and anxiolytic effects of Tualang honey, and proposed the underlying mechanisms. The findings from this review may potentially be beneficial towards developing new therapeutic roles for Tualang honey and help in determining how best to benefit from this brain supplement.
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