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Xu J, Wang X, Yu H, Chai X, Zhang M, Wu HH, Wang Y. Study on Quality Characteristic of Chebulae Fructus and Its Adulterants and Degradation Pathway of Hydrolyzable Tannins. Molecules 2024; 29:2399. [PMID: 38792262 PMCID: PMC11123712 DOI: 10.3390/molecules29102399] [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: 03/14/2024] [Revised: 04/29/2024] [Accepted: 05/09/2024] [Indexed: 05/26/2024] Open
Abstract
Chebulae Fructus (CF) is known as one of the richest sources of hydrolyzable tannins (HTs). In this study, ultra-performance liquid chromatography coupled with a photodiode array detector method was established for simultaneous determination of the 12 common phenolcarboxylic and tannic constituents (PTCs). Using this method, quantitative analysis was accomplished in CF and other four adulterants, including Terminaliae Belliricae Fructus, Phyllanthi Fructus, Chebulae Fructus Immaturus, and Canarii Fructus. Based on a quantitative analysis of the focused compounds, discrimination of CF and other four adulterants was successfully accomplished by hierarchical cluster analysis and principal component analysis. Additionally, the total contents of the 12 compounds that we focused on in this study were unveiled as 148.86 mg/g, 96.14 mg/g, and 18.64 mg/g in exocarp, mesocarp, and endocarp and seed of CF, respectively, and PTCs were witnessed to be the most abundant in the exocarp of CF. Noticeably, the HTs (chebulagic acid, chebulanin acid, chebulinic acid, and punicalagin) were observed to be ultimately degraded to chebulic acid, gallic acid, and ellagic acid during sunlight-drying of the fresh fruits. As a result, our study indicated that CF and its adulterants could be distinguished by the observed 12 PTCs, which were mainly distributed in the exocarp of the fruits. The HTs were prone to degrade into the three simple phenolcarboxylic acids during drying or processing, allowing us to obtain a more comprehensive understanding of the PTCs, with great significance in the improved quality of CF and related products.
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Affiliation(s)
- Jian Xu
- National Key Laboratory of Chinese Medicine Modernization, State Key Laboratory of Component-Based Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; (J.X.); (X.W.); (H.Y.); (X.C.)
| | - Xiangdong Wang
- National Key Laboratory of Chinese Medicine Modernization, State Key Laboratory of Component-Based Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; (J.X.); (X.W.); (H.Y.); (X.C.)
| | - Huijuan Yu
- National Key Laboratory of Chinese Medicine Modernization, State Key Laboratory of Component-Based Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; (J.X.); (X.W.); (H.Y.); (X.C.)
- Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, China
| | - Xin Chai
- National Key Laboratory of Chinese Medicine Modernization, State Key Laboratory of Component-Based Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; (J.X.); (X.W.); (H.Y.); (X.C.)
- Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, China
| | - Min Zhang
- National Key Laboratory of Chinese Medicine Modernization, State Key Laboratory of Component-Based Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; (J.X.); (X.W.); (H.Y.); (X.C.)
- Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, China
| | - Hong-Hua Wu
- National Key Laboratory of Chinese Medicine Modernization, State Key Laboratory of Component-Based Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; (J.X.); (X.W.); (H.Y.); (X.C.)
- Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, China
| | - Yuefei Wang
- National Key Laboratory of Chinese Medicine Modernization, State Key Laboratory of Component-Based Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; (J.X.); (X.W.); (H.Y.); (X.C.)
- Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, China
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Sultan MT, Anwar MJ, Imran M, Khalil I, Saeed F, Neelum S, Alsagaby SA, Al Abdulmonem W, Abdelgawad MA, Hussain M, El-Ghorab AH, Umar M, Al Jbawi E. Phytochemical profile and pro-healthy properties of Terminalia chebula: A comprehensive review. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2023. [DOI: 10.1080/10942912.2023.2166951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
| | | | - Muhammad Imran
- Department of Food Science and Technology, University of Narowal-Pakistan, Narowal, Pakistan
| | - Ijaz Khalil
- Institute of Food and Nutrition, Bahauddin Zakariya University, Multan, Pakistan
| | - Farhan Saeed
- Department of Food Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Shahzadi Neelum
- Department of Biochemistry, Hamdard University, Karachi, Pakistan
| | - Suliman A. Alsagaby
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, AL-Majmaah, Saudi Arabia
| | - Waleed Al Abdulmonem
- Department of Pathology, College of Medicine, Qassim University, Buraidah, Kingdom of Saudi Arabia
| | - Mohamed A. Abdelgawad
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Sakaka, Saudi Arabia
| | - Muzzamal Hussain
- Department of Food Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Ahmed H. El-Ghorab
- Department of Chemistry, College of Science, Jouf University, Sakaka, Saudi Arabia
| | - Maryam Umar
- Department of Food Sciences, Government College University Faisalabad, Faisalabad, Pakistan
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Liu H, Liu B, Zhang S, Fan M, Ji X, Zhang S, Wang Z, Qiao K. Lentinan protects Caenorhabditis elegans against fluopyram-induced toxicity through DAF-16 and SKN-1 pathways. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 265:115510. [PMID: 37742572 DOI: 10.1016/j.ecoenv.2023.115510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 09/17/2023] [Accepted: 09/20/2023] [Indexed: 09/26/2023]
Abstract
Fluopyram, a SDH inhibitor fungicide, is widely used in agriculture to control fungi and nematodes. However, fluopyram has been proved toxic that caused damage to organs through oxidative stress. The development of natural extracts that can reduce oxidative damage is a promising method. Lentinan is isolated from Lentinus edodes and has been verified its antioxidant activity. In this study, Caenorhabditis elegans was used to evaluate the protective effects of lentinan against fluopyram-induced toxicity and the possible mechanisms. Results showed that lentinan pretreatment notably increased the survival rate of N2 nematodes by 15.0 % and extended the lifespan by 91.5 %, compared with the fluopyram treatment. Lentinan pretreatment reverted the inhibition of the locomotion and reproduction of C. elegans under the fluopyram stress. In addition, lentinan pretreatment significantly decreased the contents of ROS and MDA in N2 nematodes. Moreover, pretreated with lentinan significantly recovered the decreased activities of CAT, SOD, GST and SDH induced by fluopyram. Lentinan pretreatment enhanced the mRNA levels of daf-16 and skn-1 and their downstream genes in the nematodes compared with the fluopyram group. In daf-16 and skn-1 mutants, the lifespan, ROS and related genes expression were not significantly changed in lentinan pretreatment. Pretreated with lentinan significantly enhanced the fluorescence intensity of SOD-3::GFP and GST-4::GFP, and promoted the nuclear translocation of DAF-16 and SKN-1 under the fluopyram stress. In summary, these findings indicated that lentinan protected C. elegans from fluopyram-induced toxicity via DAF-16 and SKN-1.
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Affiliation(s)
- Huimin Liu
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Bingjie Liu
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Siqi Zhang
- College of Food Science and Engineering, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Miao Fan
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Xiaoxue Ji
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Shouan Zhang
- Tropical Research and Education Center, Department of Plant Pathology, University of Florida, IFAS, Homestead, FL 33031, USA
| | - Zhongtang Wang
- Shandong Institute of Pomology, Tai'an, Shandong 271000, China.
| | - Kang Qiao
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China.
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Duan F, Ju T, Song C, Liu M, Xiong Y, Han X, Lu W. Synergetic effect of β-asarone and cannabidiol against Aβ aggregation in vitro and in vivo. Comput Struct Biotechnol J 2023; 21:3875-3884. [PMID: 37602231 PMCID: PMC10432915 DOI: 10.1016/j.csbj.2023.07.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/17/2023] [Accepted: 07/19/2023] [Indexed: 08/22/2023] Open
Abstract
Alzheimer's disease (AD) is a complex and multifactorial neurodegenerative disorder, and it is unlikely that any single drug or intervention will be very successful. The pathophysiology of Alzheimer's disease involves a range of complicated biological processes, including the accumulation of beta-amyloid protein and tau protein. Given the complexity of AD and amyloid accumulation, a combination of interventions remains to be further explored. Here, we investigated the potential of combining β-asarone and cannabidiol (CBD) as a treatment for AD. The study analyzed the combined effects of these two phytochemicals on beta-amyloid (Aβ) protein aggregation and toxicity in bulk solution, in cells as well as in C.elegans. We detailed the morphological and size changes of Aβ40 aggregates in the presence of β-asarone and cannabidiol. More importantly, the presence of both compounds synergistically inhibited apoptosis and downregulated relative gene expression in cells, and that it may also slow aging, decrease the rate of paralysis, enhance learning capacity, and boost autophagy activity in C.elegans. Our studies suggest that multiple drugs, like β-asarone and CBD, may be potentially developed as a medicinal adjunct in the treatment of AD, although further clinical trials are needed to determine the efficacy and safety of this combination treatment in humans.
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Affiliation(s)
- Fangyuan Duan
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
- National and Local Joint Engineering Laboratory for Synthesis, Transformation and Separation of Extreme Environmental Nutrients, Harbin 150001, China
| | - Ting Ju
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
- National and Local Joint Engineering Laboratory for Synthesis, Transformation and Separation of Extreme Environmental Nutrients, Harbin 150001, China
| | - Chen Song
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
- National and Local Joint Engineering Laboratory for Synthesis, Transformation and Separation of Extreme Environmental Nutrients, Harbin 150001, China
| | - Mengyao Liu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
- National and Local Joint Engineering Laboratory for Synthesis, Transformation and Separation of Extreme Environmental Nutrients, Harbin 150001, China
| | - Yi Xiong
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
- National and Local Joint Engineering Laboratory for Synthesis, Transformation and Separation of Extreme Environmental Nutrients, Harbin 150001, China
| | - Xue Han
- School of Medicine and Health, Harbin Institute of Technology, Harbin 150001, China
| | - Weihong Lu
- School of Medicine and Health, Harbin Institute of Technology, Harbin 150001, China
- National and Local Joint Engineering Laboratory for Synthesis, Transformation and Separation of Extreme Environmental Nutrients, Harbin 150001, China
- The Intelligent Equipment Research Center for the Development of Special Medicine and Food Resources, Chongqing Research Institute of HIT. Harbin Institute of Technology, Chongqing 401120, China
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Kleawyothatis W, Jattujan P, Chumphoochai K, Chalorak P, Sobhon P, Meemon K. Holothuria scabra extracts confer neuroprotective effect in C. elegans model of Alzheimer's disease by attenuating amyloid-β aggregation and toxicity. J Tradit Complement Med 2023; 13:93-104. [PMID: 36685078 PMCID: PMC9845652 DOI: 10.1016/j.jtcme.2022.10.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 10/08/2022] [Accepted: 10/31/2022] [Indexed: 11/15/2022] Open
Abstract
Background and aim Alzheimer's disease (AD) is the most common aged-related neurodegenerative disorder that is associated with the toxic amyloid-β (Aβ) aggregation in the brain. While the efficacies of available drugs against AD are still limited, natural products have been shown to possess neuroprotective potential for prevention and therapy of AD. This study aimed to investigate the neuroprotective effects of H. scabra extracts against Aβ aggregation and proteotoxicity in C. elegans model of Alzheimer's diseases. Experimental procedure Whole bodies (WB) and body wall (BW) of H. scabra were extracted and fractionated into ethyl acetate (WBEA, BWEA), butanol (WBBU, BWBU), and ethanol (BWET). Then C. elegans AD models were treated with these fractions and investigated for Aβ aggregation and polymerization, biochemical and behavioral changes, and level of oxidative stress, as well as lifespan extension. Results and conclusion C. elegans AD model treated with H. scabra extracts, especially triterpene glycoside-rich ethyl acetate and butanol fractions, exhibited significant reduction of Aβ deposition. These H. scabra extracts also attenuated the paralysis behavior and improved the neurological defects in chemotaxis caused by Aβ aggregation. Immunoblot analysis revealed decreased level of Aβ oligomeric forms and the increased level of Aβ monomers after treatments with H. scabra extracts. In addition, H. scabra extracts reduced reactive oxygen species and increased the mean lifespan of the treated AD worms. In conclusion, this study demonstrated strong evidence of anti-Alzheimer effects by H. scabra extracts, implying that these extracts can potentially be applied as natural preventive and therapeutic agents for AD. Taxonomy classification by EVISE Alzheimer's disease, Neurodegenerative disorder, Traditional medicine, Experimental model systems, Molecular biology.
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Affiliation(s)
- Warannida Kleawyothatis
- Department of Anatomy, Faculty of Science, Mahidol University, Ratchathewi, Bangkok, 10400, Thailand
| | - Prapaporn Jattujan
- Department of Anatomy, Faculty of Science, Mahidol University, Ratchathewi, Bangkok, 10400, Thailand
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Kawita Chumphoochai
- Department of Anatomy, Faculty of Science, Mahidol University, Ratchathewi, Bangkok, 10400, Thailand
| | - Pawanrat Chalorak
- Department of Anatomy, Faculty of Science, Mahidol University, Ratchathewi, Bangkok, 10400, Thailand
- Department of Radiological Technology and Medical Physics, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Prasert Sobhon
- Department of Anatomy, Faculty of Science, Mahidol University, Ratchathewi, Bangkok, 10400, Thailand
| | - Krai Meemon
- Department of Anatomy, Faculty of Science, Mahidol University, Ratchathewi, Bangkok, 10400, Thailand
- Center for Neuroscience, Faculty of Science, Mahidol University, Ratchathewi, Bangkok, 10400, Thailand
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Komura T, Aoki M, Kotoura S, Nishikawa Y. Protective effect of Lactococcus laudensis and Pediococcus parvulus against neuropathy due to amyloid-beta in Caenorhabditis elegans. Biomed Pharmacother 2022; 155:113769. [DOI: 10.1016/j.biopha.2022.113769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 09/18/2022] [Accepted: 09/26/2022] [Indexed: 11/02/2022] Open
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Neuroprotective Effect of Polyphenol Extracts from Terminalia chebula Retz. against Cerebral Ischemia-Reperfusion Injury. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27196449. [PMID: 36234986 PMCID: PMC9571999 DOI: 10.3390/molecules27196449] [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: 08/26/2022] [Revised: 09/22/2022] [Accepted: 09/26/2022] [Indexed: 11/17/2022]
Abstract
Current therapies for ischemic stroke are insufficient due to the lack of specific drugs. This study aimed to investigate the protective activity of polyphenol extracts from Terminalia chebula against cerebral ischemia-reperfusion induced damage. Polyphenols of ethyl acetate and n-butanol fractions were extracted from T. chebula. BV2 microglial cells exposed to oxygen-glucose deprivation/reoxygenation and mice subjected to middle cerebral artery occlusion/reperfusion were treated by TPE and TPB. Cell viability, cell morphology, apoptosis, mitochondrial membrane potential, enzyme activity and signaling pathway related to oxidative stress were observed. We found that TPE and TPB showed strong antioxidant activity in vitro. The protective effects of TPE and TPB on cerebral ischemia-reperfusion injury were demonstrated by enhanced antioxidant enzyme activities, elevated level of the nucleus transportation of nuclear factor erythroid 2-related factor 2 and expressions of antioxidant proteins, with a simultaneous reduction in cell apoptosis and reactive oxygen species level. In conclusion, TPE and TPB exert neuroprotective effects by stimulating the Nrf2 signaling pathway, thereby inhibiting apoptosis.
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Cryptotanshinone Alleviates Oxidative Stress and Reduces the Level of Abnormally Aggregated Protein in Caenorhabditis elegans AD Models. Int J Mol Sci 2022; 23:ijms231710030. [PMID: 36077432 PMCID: PMC9456502 DOI: 10.3390/ijms231710030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 08/26/2022] [Accepted: 08/30/2022] [Indexed: 11/17/2022] Open
Abstract
Alzheimer's disease (AD) is one of the leading causes of dementia. As the first common neurodegenerative disease, there are no effective drugs that can reverse the progression. The present study is to report the anti-AD effect of cryptotanshinone (CTS), a natural product isolated from Salvia castanea. It is found that it can alleviate AD-like features associated with Aβ1-42 toxicity in muscle cells as well as neuronal cells of Caenorhabditis elegans (C. elegans). Further studies showed that CTS reduced the level of reactive oxygen species (ROS) in nematodes, up-regulated the expression of sod-3, and enhanced superoxide dismutase activity. Cryptotanshinone reduced the level of Aβ monomers and highly toxic oligomers in C. elegans while inhibiting the abnormal aggregation of polyglutamine protein. In addition, CTS upregulated the expression of hsp-16.2 and downregulated the expression of ace-2. These results suggested that CTS could alleviate oxidative stress and reduce the level of abnormally aggregated proteins and has the potential to be developed as an anti-AD drug candidate.
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Zhao L, Yue Z, Wang Y, Wang J, Ullah I, Muhammad F, Zhou Y, Zhu H, Wang X, Li H. Autophagy activation by Terminalia chebula Retz. reduce Aβ generation by shifting APP processing toward non-amyloidogenic pathway in APPswe transgenic SH-SY5Y cells. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 103:154245. [PMID: 35696798 DOI: 10.1016/j.phymed.2022.154245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 05/18/2022] [Accepted: 06/05/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Alzheimer's disease (AD) is the most common neurodegenerative disease. Deposition of amyloid β plaques (Aβ) is a central hallmark of AD. Accumulating evidence suggest that shifting amyloid precursor protein (APP) metabolism pathway to non-amyloidogenic ways and inducing autophagy play key roles in AD pathology. In published reports, there is no research on the APP metabolic process of Terminalia chebula Retz. (T. Chebula). PURPOSE The study aims to assess the effects of T. Chebula in AD transgenic SH-SY5Y cells to determine its underlying mechanisms on reducing Aβ level by regulating APP metabolic process. METHODS The effects of T. Chebula water extract (TWE) on APPswe transgenic SH-SY5Y cells were analyzed by cell viability. ELISA used to quantify extracellular Aβ1-40 and Aβ1-42 generations. Western blot and RT-PCR assays were chosen to detect the expression of proteins and genes. The acridine orange (AO) stain was used to label autophagic-vesicles. RESULTS Treatment with TWE significantly suppressed the Aβ1-40 and Aβ1-42 generations of APPswe transgenic cells. TWE inhibited amyloidogenic pathway by reducing BACE1 expression, and promote non-amyloidogenic pathway by inducing ADAM10 level of APP metabolism. Additionally, TWE induced autophagy in APPswe transgenic cells involved in APP metabolism to shift the balance to non-amyloidogenic pathway. CONCLUSION In summary, our finding first time expounded that TWE can inhibit the generation of Aβ1-40 and Aβ1-42 in APPswe transgenic SH-SY5Y cells, which were regulated APP metabolism tends to non-amyloid metabolism pathway and mediated by autophagy. The results presented a novel finding for AD treatment of traditional natural medicines.
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Affiliation(s)
- Longhe Zhao
- School of Pharmacy, Lanzhou University, Donggang Road No. 199, Lanzhou, China
| | - Zhaorong Yue
- School of Pharmacy, Lanzhou University, Donggang Road No. 199, Lanzhou, China
| | - Yanni Wang
- School of Pharmacy, Lanzhou University, Donggang Road No. 199, Lanzhou, China
| | - Jiatao Wang
- School of Pharmacy, Lanzhou University, Donggang Road No. 199, Lanzhou, China
| | - Inam Ullah
- Institute of Microbiology, School of Life Sciences, Lanzhou University, Tianshui Road No. 222, Lanzhou, China
| | - Fahim Muhammad
- Institute of Microbiology, School of Life Sciences, Lanzhou University, Tianshui Road No. 222, Lanzhou, China
| | - Yongtao Zhou
- Department of Neurology, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Hongmei Zhu
- School of Pharmacy, Lanzhou University, Donggang Road No. 199, Lanzhou, China
| | - Xin Wang
- School of Pharmacy, Lanzhou University, Donggang Road No. 199, Lanzhou, China.
| | - Hongyu Li
- School of Pharmacy, Lanzhou University, Donggang Road No. 199, Lanzhou, China; Institute of Microbiology, School of Life Sciences, Lanzhou University, Tianshui Road No. 222, Lanzhou, China.
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Li J, Zou B, Cheng XY, Yang XH, Li J, Zhao CH, Ma RX, Tian JX, Yao Y. Therapeutic effects of total saikosaponins from Radix bupleuri against Alzheimer’s disease. Front Pharmacol 2022; 13:940999. [PMID: 35935875 PMCID: PMC9351603 DOI: 10.3389/fphar.2022.940999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 06/28/2022] [Indexed: 11/13/2022] Open
Abstract
Alzheimer’s disease (AD) is a neurodegenerative disease characterized by memory loss and cognitive dysfunction in the elderly, with amyloid-beta (Aβ) deposition and hyperphosphorylation of tau protein as the main pathological feature. Nuclear factor 2 (Nrf2) is a transcription factor that primarily exists in the cytosol of hippocampal neurons, and it is considered as an important regulator of autophagy, oxidative stress, and inflammation. Total saikosaponins (TS) is the main bioactive component of Radix bupleuri (Chaihu). In this study, it was found that TS could ameliorate cognitive dysfunction in APP/PS1 transgenic mice and reduce Aβ generation and senile plaque deposition via activating Nrf2 and downregulating the expression of β-secretase 1 (BACE1). In addition, TS can enhance autophagy by promoting the expression of Beclin-1 and LC3-II, increasing the degradation of p62 and NDP52 and the clearance of phosphorylated tau (p-tau), and reducing the expression of p-tau. It can also downregulate the expression of nuclear factor-κB (NF-κB) to inhibit the activation of glial cells and reduce the release of inflammatory factors. In vitro experiments using PC12 cells induced by Aβ, TS could significantly inhibit the aggregation of Aβ and reduce cytotoxicity. It was found that Nrf2 knock-out weakened the inhibitory effect of TS on BACE1 and NF-κB transcription in PC12 cells. Moreover, the inhibitory effect of TS on BACE1 transcription was achieved by promoting the binding of Nrf2 and the promoter of BACE1 ARE1. Results showed that TS downregulated the expression of BACE1 and NF-κB through Nrf2, thereby reducing the generation of Aβ and inhibiting neuroinflammation. Furthermore, TS can ameliorate synaptic loss and alleviate oxidative stress. In gut microbiota analysis, dysbiosis was demonstrated in APP/PS1 transgenic mice, indicating a potential link between gut microbiota and AD. Furthermore, TS treatment reverses the gut microbiota disorder in APP/PS1 mice, suggesting a therapeutic strategy by remodeling the gut microbe. Collectively, these data shows that TS may serve as a potential approach for AD treatment. Further investigation is needed to clarify the detailed mechanisms underlying TS regulating gut microbiota and oxidative stress.
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Affiliation(s)
- Juan Li
- School of Pharmacy, Ningxia Medical University, Yinchuan, China
- Ningxia Engineering and Technology Research Center for Modernization of Characteristic Chinese Medicine, and Key Laboratory of Ningxia Ethnomedicine Modernization, Ministry of Education, Ningxia Medical University, Yinchuan, China
| | - Bin Zou
- School of Pharmacy, Ningxia Medical University, Yinchuan, China
| | - Xiao-Yu Cheng
- Department of Neurology and Clinical Research Center of Neurological Disease, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Xin-He Yang
- School of Pharmacy, Ningxia Medical University, Yinchuan, China
| | - Jia Li
- School of Pharmacy, Ningxia Medical University, Yinchuan, China
| | - Chun-Hui Zhao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Rui-Xia Ma
- School of Pharmacy, Ningxia Medical University, Yinchuan, China
| | - Ji-Xiang Tian
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
- *Correspondence: Yao Yao, ; Ji-Xiang Tian,
| | - Yao Yao
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
- *Correspondence: Yao Yao, ; Ji-Xiang Tian,
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Navarro-Hortal MD, Romero-Márquez JM, Osta S, Jiménez-Trigo V, Muñoz-Ollero P, Varela-López A. Natural Bioactive Products and Alzheimer’s Disease Pathology: Lessons from Caenorhabditis elegans Transgenic Models. Diseases 2022; 10:diseases10020028. [PMID: 35645249 PMCID: PMC9149938 DOI: 10.3390/diseases10020028] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 04/28/2022] [Accepted: 05/04/2022] [Indexed: 02/04/2023] Open
Abstract
Alzheimer’s disease (AD) is an age-dependent, progressive disorder affecting millions of people. Currently, the therapeutics for AD only treat the symptoms. Although they have been used to discover new products of interest for this disease, mammalian models used to investigate the molecular determinants of this disease are often prohibitively expensive, time-consuming and very complex. On the other hand, cell cultures lack the organism complexity involved in AD. Given the highly conserved neurological pathways between mammals and invertebrates, Caenorhabditis elegans has emerged as a powerful tool for the investigation of the pathophysiology of human AD. Numerous models of both Tau- and Aβ-induced toxicity, the two prime components observed to correlate with AD pathology and the ease of performing RNA interference for any gene in the C. elegans genome, allow for the identification of multiple therapeutic targets. The effects of many natural products in main AD hallmarks using these models suggest promising health-promoting effects. However, the way in which they exert such effects is not entirely clear. One of the reasons is that various possible therapeutic targets have not been evaluated in many studies. The present review aims to explore shared therapeutical targets and the potential of each of them for AD treatment or prevention.
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Aesculin offers increased resistance against oxidative stress and protective effects against Aβ-induced neurotoxicity in Caenorhabditis elegans. Eur J Pharmacol 2022; 917:174755. [PMID: 35016885 DOI: 10.1016/j.ejphar.2022.174755] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 12/11/2021] [Accepted: 01/06/2022] [Indexed: 11/21/2022]
Abstract
Aesculin, a coumarin compound, is one of the major active ingredients of traditional Chinese herbal medicine Qinpi (Cortex Fraxini), which has been reported to exhibit antioxidative, anti-inflammatory and neuroprotective properties against oxidative stress and cellular apoptosis. However, the regulatory mechanisms remain poorly characterized in vivo. This research was performed to explore the underlying molecular mechanisms behind aesculin response conferring oxidative stress resistance, and the protective effects on amyloid-β (Aβ)-mediated neurotoxicity in Caenorhabditis elegans. Study indicated that aesculin plays the protective roles for C. elegans against oxidative stress and Aβ-mediated neurotoxicity and reduces the elevated ROS and MDA contents through enhancement of antioxidant defenses. The KEGG pathway analysis suggested that the differentially expressed genes are mainly involved in longevity regulating pathway, and the nuclear translocation of DAF-16 and the RNAi of daf-16 and hsf-1 indicated that DAF-16 and HSF-1 play critical roles in integrating upstream signals and inducing the expressions of stress resistance-related genes. Furthermore, the up-regulated expressions of their target genes such as sod-3 and hsp-16.2 were confirmed in transgenic GFP reporter strains CF1553 and CL2070, respectively. These results indicated that the regulators DAF-16 and HSF-1 elevate stress resistance of C. elegans by modulating stress-responsive genes. Further experiments revealed that aesculin is capable of suppressing Aβ-induced oxidative stress and apoptosis and improves chemosensory behavior dysfunction in Aβ-transgenic nematodes. In summary, this study suggested that aesculin offers increased resistance against oxidative stress and protective effects against Aβ-induced neurotoxicity through activation of stress regulators DAF-16 and HSF-1 in nematodes.
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Deng C, Chen H, Meng Z, Meng S. Roles of traditional chinese medicine regulating neuroendocrinology on AD treatment. Front Endocrinol (Lausanne) 2022; 13:955618. [PMID: 36213283 PMCID: PMC9533021 DOI: 10.3389/fendo.2022.955618] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 09/01/2022] [Indexed: 11/20/2022] Open
Abstract
The incidence of sporadic Alzheimer's disease (AD) is increasing in recent years. Studies have shown that in addition to some genetic abnormalities, the majority of AD patients has a history of long-term exposure to risk factors. Neuroendocrine related risk factors have been proved to be strongly associated with AD. Long-term hormone disorder can have a direct detrimental effect on the brain by producing an AD-like pathology and result in cognitive decline by impairing neuronal metabolism, plasticity and survival. Traditional Chinese Medicine(TCM) may regulate the complex process of endocrine disorders, and improve metabolic abnormalities, as well as the resulting neuroinflammation and oxidative damage through a variety of pathways. TCM has unique therapeutic advantages in treating early intervention of AD-related neuroendocrine disorders and preventing cognitive decline. This paper reviewed the relationship between neuroendocrine and AD as well as the related TCM treatment and its mechanism. The advantages of TCM intervention on endocrine disorders and some pending problems was also discussed, and new insights for TCM treatment of dementia in the future was provided.
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Affiliation(s)
- Chujun Deng
- Department of Traditional Chinese Medicine, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Huize Chen
- Department of Traditional Chinese Medicine, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Zeyu Meng
- The Second Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Shengxi Meng
- Department of Traditional Chinese Medicine, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
- *Correspondence: Shengxi Meng,
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Rezvanjoo Z, Raofie F. Nanoparticle Production of Terminalia Chebula Extracts by Expansion of Supercritical Solution (ESS). INTERNATIONAL JOURNAL OF NANOSCIENCE 2021. [DOI: 10.1142/s0219581x2150037x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Terminalia chebula pharmaceuticals were extracted by using the supercritical fluid extraction (SFE) technique. Under the optimal conditions of 184 [Formula: see text]L modifier volume, 46 min dynamic extraction time, and 316 atm fluid pressure, the extraction procedure was optimized by central composite design. A modified rapid expansion of supercritical solution (RESS) technique, named expansion of the supercritical solution (ESS) was used to create the extracted pharmaceutical nanoparticles (NPs). In ESS, supercritical carbon dioxide (SC-CO[Formula: see text] was saturated with the extracts at high-pressure. Next, a pressure drop reduced the SC-CO2 solubility power in a way the extracts started to precipitate. In contrast to RESS, the pressure was permanently conserved above the critical pressure before and after depressurization. Therefore, the expansion process was gentle, which led to obtaining small and uniform particles. In the NP production process, the most adequate parameters were 360[Formula: see text]atm premier pressure, 120[Formula: see text]atm subsequent pressure, 25[Formula: see text]min equilibrium time, 30[Formula: see text]min sedimentation time, and [Formula: see text]C temperature. The average size of precipitated NPs was 41[Formula: see text]nm according to the results of field emission scanning electron microscopy analysis. The liquid chromatography-mass spectrometry evaluation demonstrated the presence of chebulinic and chebulagic acids in the extracted sample.
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Affiliation(s)
- Zahra Rezvanjoo
- Department of Analytical Chemistry and Pollutants, Shahid Beheshti University, Tehran, 1983969411, Iran
| | - Farhad Raofie
- Department of Analytical Chemistry and Pollutants, Shahid Beheshti University, Tehran, 1983969411, Iran
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