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Guo C, Huang Q, Wang Y, Yao Y, Li J, Chen J, Wu M, Zhang Z, E M, Qi H, Ji P, Liu Q, Zhao D, Su H, Qi W, Li X. Therapeutic application of natural products: NAD + metabolism as potential target. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 114:154768. [PMID: 36948143 DOI: 10.1016/j.phymed.2023.154768] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 03/01/2023] [Accepted: 03/12/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Nicotinamide adenine dinucleotide (NAD+) metabolism is involved in the entire physiopathological process and is critical to human health. Long-term imbalance in NAD+ homeostasis is associated with various diseases, including non-alcoholic fatty liver disease, diabetes mellitus, cardiovascular diseases, neurodegenerative disorders, aging, and cancer, making it a potential target for effective therapeutic strategies. Currently, several natural products that target NAD+ metabolism have been widely reported to have significant therapeutic effects, but systematic summaries are lacking. PURPOSE To summarize the latest findings on the prevention and treatment of various diseases through the regulation of NAD+ metabolism by various natural products in vivo and in vitro models, and evaluate the toxicities of the natural products. METHODS PubMed, Web of Science, and ScienceDirect were searched using the keywords "natural products sources," "toxicology," "NAD+ clinical trials," and "NAD+," and/or paired with "natural products" and "diseases" for studies published within the last decade until January 2023. RESULTS We found that the natural products mainly include phenols (curcumin, cyclocurcumin, 4-hydroxybenzyl alcohol, salvianolic acid B, pterostilbene, EGCG), flavonoids (pinostrobin, apigenin, acacetin, tilianin, kaempferol, quercetin, isoliquiritigenin, luteolin, silybin, hydroxysafflor yellow A, scutellarin), glycosides (salidroside), quinones (emodin, embelin, β-LAPachone, shikonin), terpenoids (notoginsenoside R1, ginsenoside F2, ginsenoside Rd, ginsenoside Rb1, ginsenoside Rg3, thymoquinone, genipin), pyrazines (tetramethylpyrazine), alkaloids (evodiamine, berberine), and phenylpropanoids (ferulic acid). These natural products have antioxidant, energy-producing, anti-inflammatory, anti-apoptotic and anti-aging effects, which mainly influence the NAMPT/NAD+/SIRT, AMPK/SIRT1/PGC-1α, Nrf2/HO-1, PKCs/PARPs/NF-κB, and AMPK/Nrf2/mTOR signaling pathways, thereby regulating NAD+ metabolism to prevent and treat various diseases. These natural products have been shown to be safe, tolerable and have fewer adverse effects in various in vivo and in vitro studies and clinical trials. CONCLUSION We evaluated the toxic effects of natural products and summarized the available clinical trials on NAD+ metabolism, as well as the recent advances in the therapeutic application of natural products targeting NAD+ metabolism, with the aim to provide new insights into the treatment of multiple disorders.
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Affiliation(s)
- Chen Guo
- Northeast Asia Research Institute of Traditional Chinese Medicine, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, China
| | - Qingxia Huang
- Northeast Asia Research Institute of Traditional Chinese Medicine, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, China; Research Center of Traditional Chinese Medicine, College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin, 130021, China
| | - Yisa Wang
- Northeast Asia Research Institute of Traditional Chinese Medicine, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, China
| | - Yao Yao
- Northeast Asia Research Institute of Traditional Chinese Medicine, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, China
| | - Jing Li
- Northeast Asia Research Institute of Traditional Chinese Medicine, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, China
| | - Jinjin Chen
- Northeast Asia Research Institute of Traditional Chinese Medicine, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, China
| | - Mingxia Wu
- Northeast Asia Research Institute of Traditional Chinese Medicine, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, China
| | - Zepeng Zhang
- Northeast Asia Research Institute of Traditional Chinese Medicine, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, China; Research Center of Traditional Chinese Medicine, College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin, 130021, China
| | - Mingyao E
- Northeast Asia Research Institute of Traditional Chinese Medicine, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, China
| | - Hongyu Qi
- Northeast Asia Research Institute of Traditional Chinese Medicine, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, China
| | - Peng Ji
- Northeast Asia Research Institute of Traditional Chinese Medicine, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, China
| | - Qing Liu
- Northeast Asia Research Institute of Traditional Chinese Medicine, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, China
| | - Daqing Zhao
- Northeast Asia Research Institute of Traditional Chinese Medicine, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, China
| | - Hang Su
- Northeast Asia Research Institute of Traditional Chinese Medicine, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, China
| | - Wenxiu Qi
- Northeast Asia Research Institute of Traditional Chinese Medicine, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, China.
| | - Xiangyan Li
- Northeast Asia Research Institute of Traditional Chinese Medicine, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, China.
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Chen HL, Yang L, Zhang XLN, Jia QY, Duan ZD, Li JJ, Zheng LY, Liu TT, Qi Z, Yuan Y, Wu CY. Scutellarin Acts via MAPKs Pathway to Promote M2 Polarization of Microglial Cells. Mol Neurobiol 2023:10.1007/s12035-023-03338-3. [PMID: 37086342 DOI: 10.1007/s12035-023-03338-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 04/03/2023] [Indexed: 04/23/2023]
Abstract
Scutellarin, an herbal agent, is known to possess anti-oxidant and anti-inflammatory properties. In activated microglia, it has been reported that this is achieved through acting on the MAPKs, a key pathway that regulates microglia activation. This study sought to determine if scutellarin would affect the commonly described microglia phenotypes, namely, M1 and M2, thought to contribute to pro- and anti-inflammatory roles, respectively. This is in consideration of its potential effect on the polarization of microglia phenotypes that are featured prominently in cerebral ischemia. For this purpose, we have used an experimentally induced cerebral ischemia rat model and LPS-stimulated BV-2 cell model. Thus, by Western blot and immunofluorescence, we show here a noticeable increase in expression of M2 microglia markers, namely, CD206, Arg1, YM1/2, IL-4 and IL-10 in activated microglia both in vivo and in vitro. Besides, we have confirmed that Scutellarin upregulated expression of Arg1, IL-10 and IL-4 in medium supernatants of BV-2 microglia. Remarkably, scutellarin treatment markedly augmented the increased expression of the respective markers in activated microglia. It is therefore suggested scutellarin can exert the polarization of activated microglia from M1 to M2 phenotype. Because M1 microglia are commonly known to be proinflammatory, while M2 microglia are anti-inflammatory and neuroprotective effect, it stands to reason therefore that with the increase of M2 microglia which became predominant by scutellarin, the local inflammatory response is ameliorated. More importantly, we have found that scutellarin promotes the M2 polarization through inhibiting the JNK and p38 signaling pathways, and concomitantly augmenting the ERK1/2 signaling pathway. This lends its strong support from observations in LPS activated BV-2 microglia treated with p38 and JNK inhibitors in which expression of M2 markers was increased; on the other hand, in cells subjected to ERK1/2 inhibitor treatment, the expression was suppressed. In light of the above, MAPKs pathway is deemed to be a potential therapeutic target of scutellarin in mitigating microglia mediated neuroinflammation in activated microglia.
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Affiliation(s)
- Hao-Lun Chen
- Department of Anatomy and Histology/Embryology, School of Basic Medical Sciences, Kunming Medical University, 1168 West Chunrong Road, Kunming, 650500, People's Republic of China
- Department of Neurology, No.2 Affiliated Hospital, Kunming Medical University, 374 Dianmian Road, Kunming, 650101, People's Republic of China
| | - Li Yang
- Department of Anatomy and Histology/Embryology, School of Basic Medical Sciences, Kunming Medical University, 1168 West Chunrong Road, Kunming, 650500, People's Republic of China
- Department of Neurology, No.2 Affiliated Hospital, Kunming Medical University, 374 Dianmian Road, Kunming, 650101, People's Republic of China
| | - Xiao-Li-Na Zhang
- Department of Anatomy and Histology/Embryology, School of Basic Medical Sciences, Kunming Medical University, 1168 West Chunrong Road, Kunming, 650500, People's Republic of China
- Department of Neurology, No.2 Affiliated Hospital, Kunming Medical University, 374 Dianmian Road, Kunming, 650101, People's Republic of China
- Department of Pain Management, No.1 Affiliated Hospital, Kunming Medical University, 295 Xichang Road, Kunming, 650101, People's Republic of China
| | - Qiu-Ye Jia
- Department of Anatomy and Histology/Embryology, School of Basic Medical Sciences, Kunming Medical University, 1168 West Chunrong Road, Kunming, 650500, People's Republic of China
- Department of Neurology, No.2 Affiliated Hospital, Kunming Medical University, 374 Dianmian Road, Kunming, 650101, People's Republic of China
| | - Zhao-Da Duan
- Department of Anatomy and Histology/Embryology, School of Basic Medical Sciences, Kunming Medical University, 1168 West Chunrong Road, Kunming, 650500, People's Republic of China
- Department of Neurology, No.2 Affiliated Hospital, Kunming Medical University, 374 Dianmian Road, Kunming, 650101, People's Republic of China
| | - Juan-Juan Li
- Department of Anatomy and Histology/Embryology, School of Basic Medical Sciences, Kunming Medical University, 1168 West Chunrong Road, Kunming, 650500, People's Republic of China
- Department of Neurology, No.2 Affiliated Hospital, Kunming Medical University, 374 Dianmian Road, Kunming, 650101, People's Republic of China
| | - Li-Yang Zheng
- Department of Anatomy and Histology/Embryology, School of Basic Medical Sciences, Kunming Medical University, 1168 West Chunrong Road, Kunming, 650500, People's Republic of China
- Department of Neurology, No.2 Affiliated Hospital, Kunming Medical University, 374 Dianmian Road, Kunming, 650101, People's Republic of China
| | - Teng-Teng Liu
- Department of Anatomy and Histology/Embryology, School of Basic Medical Sciences, Kunming Medical University, 1168 West Chunrong Road, Kunming, 650500, People's Republic of China
- Department of Neurology, No.2 Affiliated Hospital, Kunming Medical University, 374 Dianmian Road, Kunming, 650101, People's Republic of China
| | - Zhi Qi
- Department of Neurology, No.2 Affiliated Hospital, Kunming Medical University, 374 Dianmian Road, Kunming, 650101, People's Republic of China
- School of Basic Medical Sciences, Kunming Medical University, 1168 West Chunrong Road, Kunming, 650500, People's Republic of China
| | - Yun Yuan
- Department of Anatomy and Histology/Embryology, School of Basic Medical Sciences, Kunming Medical University, 1168 West Chunrong Road, Kunming, 650500, People's Republic of China.
- Department of Neurology, No.2 Affiliated Hospital, Kunming Medical University, 374 Dianmian Road, Kunming, 650101, People's Republic of China.
| | - Chun-Yun Wu
- Department of Anatomy and Histology/Embryology, School of Basic Medical Sciences, Kunming Medical University, 1168 West Chunrong Road, Kunming, 650500, People's Republic of China.
- Department of Neurology, No.2 Affiliated Hospital, Kunming Medical University, 374 Dianmian Road, Kunming, 650101, People's Republic of China.
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Li JK, Song ZP, Hou XZ. Scutellarin ameliorates ischemia/reperfusion injury‑induced cardiomyocyte apoptosis and cardiac dysfunction via inhibition of the cGAS‑STING pathway. Exp Ther Med 2023; 25:155. [PMID: 36911381 PMCID: PMC9996299 DOI: 10.3892/etm.2023.11854] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 12/16/2022] [Indexed: 02/19/2023] Open
Abstract
Ischemic heart disease is a common cardiovascular disease. Scutellarin (SCU) exhibits protective effects in ischemic cardiomyocytes; however, to the best of our knowledge, the protective mechanism of SCU remains unclear. The present study was performed to investigate the protective effect of SCU on cardiomyocytes after ischemia/reperfusion (I/R) injury and the underlying mechanism. Mice were intraperitoneally injected with SCU (20 mg/kg) for 7 days before establishing the heart I/R injury model. Cardiac function was detected using small animal echocardiography, apoptotic cells were visualized using TUNEL staining, the myocardial infarct area was assessed by 2,3,5-triphenyltetrazolium chloride staining, and the protein levels of cyclic GMP-AMP synthase (cGAS), stimulator of interferon genes (STING), Bcl-2, Bax and cleaved Caspase-3 were detected by western blotting. In in vitro experiments, H9c2 cells were pretreated with SCU, RU.521 (cGAS inhibitor) and H-151 (STING inhibitor), before cell hypoxia/reoxygenation (H/R) injury. The viability of H9c2 cells was detected using a Cell Counting Kit-8 assay, the rate of apoptosis was determined by flow cytometry, and the protein expression levels of cGAS, STING, Bcl-2, Bax and cleaved Caspase-3 were detected by western blotting. It was revealed that SCU ameliorated cardiac dysfunction and apoptosis, and inhibited the activation of the cGAS-STING and Bcl-2/Bax/Caspase-3 signaling pathways in I/R-injured mice. It was also observed that SCU significantly increased cell viability and decreased apoptosis in H/R-induced H9c2 cells. Furthermore, H/R increased the expression levels of cGAS, STING and cleaved Caspase-3, and decreased the ratio of Bcl-2/Bax, which could be reversed by treatment with SCU, RU.521 and H-151. The present study demonstrated that the cGAS-STING signaling pathway may be involved in the regulation of the activation of the Bcl-2/Bax/Caspase-3 signaling pathway to mediate I/R-induced cardiomyocyte apoptosis and cardiac dysfunction, which could be ameliorated by SCU treatment.
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Affiliation(s)
- Jiu-Kang Li
- Department of Infectious Diseases, The People's Hospital of Yue Chi County, Guang'an, Sichuan 638300, P.R. China
| | - Zhi-Ping Song
- Department of Cardiovascular Medicine, The People's Hospital of Yue Chi County, Guang'an, Sichuan 638300, P.R. China
| | - Xing-Zhi Hou
- Department of Cardiovascular Medicine, The People's Hospital of Yue Chi County, Guang'an, Sichuan 638300, P.R. China
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Mitra S, Rauf A, Sutradhar H, Sadaf S, Hossain MJ, Soma MA, Emran TB, Ahmad B, Aljohani ASM, Al Abdulmonem W, Thiruvengadam M. Potential candidates from marine and terrestrial resources targeting mitochondrial inhibition: Insights from the molecular approach. Comp Biochem Physiol C Toxicol Pharmacol 2023; 264:109509. [PMID: 36368509 DOI: 10.1016/j.cbpc.2022.109509] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 10/21/2022] [Accepted: 11/03/2022] [Indexed: 11/11/2022]
Abstract
Mitochondria are the target sites for multiple disease manifestations, for which it is appealing to researchers' attention for advanced pharmacological interventions. Mitochondrial inhibitors from natural sources are of therapeutic interest due to their promising benefits on physiological complications. Mitochondrial complexes I, II, III, IV, and V are the most common sites for the induction of inhibition by drug candidates, henceforth alleviating the manifestations, prevalence, as well as severity of diseases. Though there are few therapeutic options currently available on the market. However, it is crucial to develop new candidates from natural resources, as mitochondria-targeting abnormalities are rising to a greater extent. Marine and terrestrial sources possess plenty of bioactive compounds that are appeared to be effective in this regard. Ample research investigations have been performed to appraise the potentiality of these compounds in terms of mitochondrial disorders. So, this review outlines the role of terrestrial and marine-derived compounds in mitochondrial inhibition as well as their clinical status too. Additionally, mitochondrial regulation and, therefore, the significance of mitochondrial inhibition by terrestrial and marine-derived compounds in drug discovery are also discussed.
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Affiliation(s)
- Saikat Mitra
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh
| | - Abdur Rauf
- Department of Chemistry, University of Swabi, Anbar, Swabi 23430, Khyber Pakhtunkhwa (KP), Pakistan.
| | - Hriday Sutradhar
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh
| | - Samia Sadaf
- Department of Genetic Engineering and Biotechnology, University of Chittagong, Chittagong 4331, Bangladesh
| | - Md Jamal Hossain
- Department of Pharmacy, State University of Bangladesh, 77 Satmasjid Road Dhanmondi, Dhaka 1205, Bangladesh
| | - Mahfuza Afroz Soma
- Department of Pharmacy, State University of Bangladesh, 77 Satmasjid Road Dhanmondi, Dhaka 1205, Bangladesh
| | - Talha Bin Emran
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong 4381, Bangladesh; Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh
| | - Bashir Ahmad
- Institute of Biotechnology & Microbiology, Bacha Khan University, Charsadda, KP, Pakistan
| | - Abdullah S M Aljohani
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, Saudi Arabia
| | - Waleed Al Abdulmonem
- Department of Pathology, College of Medicine, Qassim University, Buraydah, Saudi Arabia
| | - Muthu Thiruvengadam
- Department of Applied Bioscience, College of Life and Environmental Sciences, Konkuk University, Seoul 05029, Republic of Korea; Saveetha Dental College and Hospital, Saveetha Institute of Medical Technical Sciences, Chennai 600077, Tamil Nadu, India.
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Zhang Y, Zhang Z, Wang J, Zhang X, Zhao J, Bai N, Vijayalakshmi A, Huo Q. Scutellarin alleviates cerebral ischemia/reperfusion by suppressing oxidative stress and inflammatory responses via MAPK/NF-κB pathways in rats. ENVIRONMENTAL TOXICOLOGY 2022; 37:2889-2896. [PMID: 36036213 DOI: 10.1002/tox.23645] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 08/09/2022] [Accepted: 08/15/2022] [Indexed: 06/15/2023]
Abstract
Neuroinflammation contributes to the progression of cerebral ischemia/reperfusion (I/R) damage. Scutellarin (SL) is a glucuronide flavonoid that has apoptotic, anti-inflammatory, and anti-tumor properties. It is anti-oxidant and anti-inflammatory mechanism as a neuroprotective against ischemic brain injury is unknown. The purpose of the study was to examine the role and mechanism of SL in preventing I/R damage in a rat model. SL (40 and 80 mg/kg) was given to the rats for 14 days before the ischemic stroke. SL administration prevented I/R mediated brain injury, and neuronal apoptosis. Malondialdehyde, superoxide dismutase, glutathione, IL-6, and IL-1β and nitric oxide were modulated by SL. SL suppressed the p65 and p38 expressions in particular. The findings show that SL protects rats from cerebral damage caused by I/R through the nuclear factor kappa-B p65 and p38 mitogen-activated protein kinase signaling pathway. Thus, SL protected the brain of rats from ischemic injury by inhibiting the inflammatory process.
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Affiliation(s)
- Yuming Zhang
- Department of Anesthesiology, Shaanxi Provincial People's Hospital, Xi'an, China
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Zhen Zhang
- Department of Anesthesiology, The Second Affiliated Hospital of Air Force Medical University, Xi'an, China
| | - Jun Wang
- Department of Anesthesiology, Shaanxi Provincial Cancer Hospital, Xi'an, China
| | - Xiajing Zhang
- Institute of Medical Research, Nothwestern Polytechnical University, Xi'an, China
| | - Jing Zhao
- Department of Anesthesiology, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Ning Bai
- Department of Anesthesiology, Shaanxi Provincial People's Hospital, Xi'an, China
| | | | - Qifan Huo
- Department of Anesthesiology, Shaanxi Provincial People's Hospital, Xi'an, China
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Yang L, Tao Y, Luo L, Zhang Y, Wang X, Meng X. Dengzhan Xixin injection derived from a traditional Chinese herb Erigeron breviscapus ameliorates cerebral ischemia/reperfusion injury in rats via modulation of mitophagy and mitochondrial apoptosis. JOURNAL OF ETHNOPHARMACOLOGY 2022; 288:114988. [PMID: 35032588 DOI: 10.1016/j.jep.2022.114988] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/29/2021] [Accepted: 01/08/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Dengzhan Xixin injection (DX), a preparation of extracts from traditional Chinese medicine Erigeron breviscapus (Vaniot) Hand.-Mazz., has been widely used in clinical treatment of cerebral ischemia sequelae in China for a long history. However, its underlying mechanisms remain unclear. AIM OF THE STUDY The objective of this present study aimed to investigate the therapeutic effects of DX on cerebral ischemia/reperfusion (I/R) injury in a rat model. Meanwhile, its underlying molecular mechanisms on mitochondrial protection were further interpreted. MATERIALS AND METHODS The major components of DX were detected by high-performance liquid chromatography analysis. The model of cerebral I/R injury was established by middle cerebral artery occlusion (MCAO) in SD rats. We firstly performed neurobehavioral score, the regional cerebral blood flow (rCBF) assay, and TTC, HE and Nissl staining for evaluating the effects of DX on I/R injury. And then, the cortical levels of reactive oxygen species (ROS), malondialdehyde (MDA), superoxide dismutase (SOD), adenosine triphosphate (ATP) and mitochondrial membrane potential (MMP) were determined by commercial kits. Whereafter, real time-PCR and transmission electron microscopy were employed to investigate the relative copy number of mitochondrial DNA (mtDNA) and neuronal ultrastructure changes, respectively. Further, the potential interactions of major components in DX with mitophagy/apoptosis-related proteins were predicted by Schrodinger molecular docking. The expression of mitophagy-related proteins LC3, p62, TOM20, PINK1 and Parkin was estimated by western blot and immunofluorescence analyses. Furthermore, TUNEL staining and western blot were used to detect the apoptotic phenomenon and the protein expression of Bax, Bcl-2, Cytochrome c (Cyto-c) and cleaved Caspase-3. RESULTS DX mainly contains scutellarin, 3,4-O-dicaffeoylquinic acid, 3,5-O-dicaffeoylquinic acid, 4,5-O-dicaffeoylquinic acid, caffeic acid and 5-O-caffeoylquinic acid. Compared with the model group, DX could remarkably relieve ischemia-provoked neurological deficit, rCBF deficiency and cerebral infarction. Pathological changes and neuronal loss in a MCAO model of rats were memorably ameliorated by DX administration. Meanwhile, DX reduced the surged ROS and MDA, while increased the level of SOD. Notably, DX treatment conversed the collapse of ATP and MMP, along with decreased in the relative copy number of mtDNA, contributing to the maintaining of mitochondrial ultrastructure via the increased number of autophagy lysosomes. The representative ingredients in DX had a potential bind with the active sites of mitophagy/apoptosis-related proteins. DX stimulated the protein expression of LC3, PINK1 and Parkin, while reduced the levels of p62 and TOM20. In addition, DX confined TUNEL-positive cell rate with the decreased expressions of Bax, Cyto-c and cleaved Caspase-3 as well as the increased Bcl-2 level. CONCLUSIONS We demonstrated that the protection of DX against brain ischemia could attribute to alleviating mitochondrial damage by upregulating mitophagy and inhibiting mitochondria-mediated apoptosis.
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Affiliation(s)
- Lu Yang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yiwen Tao
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Liuling Luo
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yi Zhang
- Ethnic Medicine Academic Heritage Innovation Research Center, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Xiaobo Wang
- Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Xianli Meng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; Ethnic Medicine Academic Heritage Innovation Research Center, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
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Yang C, Zhao Q, Yang S, Wang L, Xu X, Li L, Al-Jamal WT. Intravenous Administration of Scutellarin Nanoparticles Augments the Protective Effect against Cerebral Ischemia-Reperfusion Injury in Rats. Mol Pharm 2022; 19:1410-1421. [PMID: 35441510 PMCID: PMC9066406 DOI: 10.1021/acs.molpharmaceut.1c00942] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
![]()
This
study investigates the protective effect of poly(lactic-co-glycolic acid) (PLGA) nanoparticles (NPs) loaded with
scutellarin (SCU), a flavone isolated from the traditional Chinese
medicineErigeron breviscapus (Vant.)
Hand.-Mazz., in reducing cerebral ischemia/reperfusion (I/R) injury in vivo. The focal cerebral I/R injury model was established
by occluding the middle cerebral artery for 1 h in male Sprague-Dawley
(SD) rats. Our SCU-PLGA NPs exhibited an extended in vitro release profile and prolonged blood circulation in rats with cerebral
ischemia. More importantly, when administered intravenously once a
day for 3 days, SCU-PLGA NPs increased the SCU level in the ischemic
brain, compared to free SCU, resulting in a significant reduction
of the cerebral infarct volume after cerebral I/R. Furthermore, SCU-PLGA
NPs reversed the histopathological changes caused by cerebral I/R
injury, as well as attenuated cell apoptosis in the brain tissue,
as confirmed by hematoxylin and eosin, and TUNEL staining. Our findings
have revealed that our injectable SCU-PLGA NPs provide promising protective
effects against cerebral I/R injury, which could be used in combination
with the existing conventional thrombolytic therapies to improve stroke
management.
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Affiliation(s)
- Chang Yang
- State Key Laboratory of Functions and Applications of Medicinal Plants/ Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, China.,Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang, Guizhou 550004, China.,School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, United Kingdom
| | - Qing Zhao
- State Key Laboratory of Functions and Applications of Medicinal Plants/ Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, China.,Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Shanshan Yang
- State Key Laboratory of Functions and Applications of Medicinal Plants/ Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, China.,Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Libin Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants/ Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, China.,Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Xingyuan Xu
- State Key Laboratory of Functions and Applications of Medicinal Plants/ Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, China.,Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Lisu Li
- State Key Laboratory of Functions and Applications of Medicinal Plants/ Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, China.,Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Wafa T Al-Jamal
- School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, United Kingdom
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8
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Cáceres-Vélez PR, Hui F, Hercus J, Bui B, Jusuf PR. Restoring the oxidative balance in age-related diseases - An approach in glaucoma. Ageing Res Rev 2022; 75:101572. [PMID: 35065274 DOI: 10.1016/j.arr.2022.101572] [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: 06/17/2021] [Revised: 12/10/2021] [Accepted: 01/18/2022] [Indexed: 02/07/2023]
Abstract
As human life expectancy increases, age-related health issues including neurodegenerative diseases continue to rise. Regardless of genetic or environmental factors, many neurodegenerative conditions share common pathological mechanisms, such as oxidative stress, a hallmark of many age-related health burdens. In this review, we describe oxidative damage and mitochondrial dysfunction in glaucoma, an age-related neurodegenerative eye disease affecting 80 million people worldwide. We consider therapeutic approaches used to counteract oxidative stress in glaucoma, including untapped treatment options such as novel plant-derived antioxidant compounds that can reduce oxidative stress and prevent neuronal loss. We summarize the current pre-clinical models and clinical work exploring the therapeutic potential of a range of candidate plant-derived antioxidant compounds. Finally, we explore advances in drug delivery systems, particular those employing nanotechnology-based carriers which hold significant promise as a carrier for antioxidants to treat age-related disease, thus reviewing the key current state of all of the aspects required towards translation.
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9
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Liu BR, Zheng HR, Jiang XJ, Zhang PZ, Wei GZ. Serratene triterpenoids from Lycopodium cernuum L. as α-glucosidase inhibitors: Identification, structure-activity relationship and molecular docking studies. PHYTOCHEMISTRY 2022; 185:112702. [PMID: 34953266 DOI: 10.1016/j.phytochem.2021.112702] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 02/06/2021] [Accepted: 02/09/2021] [Indexed: 05/20/2023]
Abstract
Phytochemical investigation of Lycopodium cernuum L. afforded seven undescribed serratene triterpenoids named 3β, 21β-dihydroxyserra-14-en-24-oic acid-3β-(5'-hydroxybenzoate) (1), 3β, 21β, 24-trihydroxyserrat-14-en-3β-(5'-hydroxyl benzoate) (2), 3β, 14α, 15α, 21β-tetrahydroxyserratane-24-methyl ester (3), 3β, 14α, 21β-trihydroxyserratane-15α-(4'-methoxy-5'-hydroxybenzoate)-24-methyl ester (4), 3β, 14α, 21β-trihydroxyserratane-15α-(4'-methoxy-5'-hydroxybenzoate) (5), 3β-hydroxy-21β-acetate-16-oxoserrat-14-en-24-oic acid (6), 3β, 21β-dihydroxy-16α, 29-epoxyserrat-14-en-24-methyl ester (7), together with eleven known compounds (8-18), whose chemical structures were elucidated through spectroscopic analysis of HRESIMS, 1D NMR, 2D NMR and comparison between the literature. All compounds were evaluated for their α-glucosidase inhibitory activity for the first time. The results showed that compounds 1, 2, 4, 5, 6, 10, 13, 15, and 16 were among the most potent α-glucosidase inhibitors, with IC50 values ranging from 23.22 ± 0.64 to 50.65 ± 0.82 μM. Structure-activity relationship (SAR) studies indicated that the combined properties of the 5-hydroxybenzoate moiety at C-3, β-OH at C-21, COOH- at C-24, and Δ14,15 groups enabled an increase in the α-glucosidase inhibitory effect. In addition, molecular docking studies showed that the potential inhibitors mainly interact with key amino acid residues in the active site of α-glucosidase through hydrogen bonds and hydrophobic forces.
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Affiliation(s)
- Bing-Rui Liu
- College of Chemistry and Technology, Hebei Agricultural University, Huanghua, 061100, PR China; College of Public Heath, North China University of Science and Technology, Tangshan, 063503, PR China
| | - Hai-Rong Zheng
- Reference Substance Branch, National Engineering Research Center for Modernization of Traditional Chinese Medicine, Kunming, 650201, PR China; BioBioPha Co., Ltd., Kunming, 650201, PR China
| | - Xian-Jun Jiang
- Reference Substance Branch, National Engineering Research Center for Modernization of Traditional Chinese Medicine, Kunming, 650201, PR China; BioBioPha Co., Ltd., Kunming, 650201, PR China
| | - Pu-Zhao Zhang
- Key Laboratory of Modern Preparation of TCM. Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, PR China.
| | - Guo-Zhu Wei
- Reference Substance Branch, National Engineering Research Center for Modernization of Traditional Chinese Medicine, Kunming, 650201, PR China; BioBioPha Co., Ltd., Kunming, 650201, PR China.
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10
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Sarkar C, Chaudhary P, Jamaddar S, Janmeda P, Mondal M, Mubarak MS, Islam MT. Redox Activity of Flavonoids: Impact on Human Health, Therapeutics, and Chemical Safety. Chem Res Toxicol 2022; 35:140-162. [PMID: 35045245 DOI: 10.1021/acs.chemrestox.1c00348] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The cost-effectiveness of presently used therapies is a problem in overall redox-based management, which is posing a significant financial burden on communities across the world. As a result, sophisticated treatment models that provide notions of predictive diagnoses followed by targeted preventive therapies adapted to individual patient profiles are gaining global acclaim as being beneficial to patients, the healthcare sector, and society as a whole. In this context, natural flavonoids were considered due to their multifaceted antioxidant, anti-inflammatory, and anticancer effects as well as their low toxicity and ease of availability. The aim of this review is to focus on the capacity of flavonoids to modulate the responsiveness of various diseases and ailments associated with redox toxicity. The review will also focus on the flavonoids' pathway-based redox activity and the advancement of redox-based therapies as well as flavonoids' antioxidant characteristics and their influence on human health, therapeutics, and chemical safety. Research findings indicated that flavonoids significantly exhibit various redox-based therapeutic responses against several diseases such as inflammatory, neurodegenerative, cardiovascular, and hepatic diseases and various types of cancer by activating the Nrf2/Keap1 transcription system, suppressing the nuclear factor κB (NF-κB)/IκB kinase inflammatory pathway, abrogating the function of the Hsp90/Hsf1 complex, inhibiting the PTEN/PI3K/Akt pathway, and preventing mitochondrial dysfunction. Some flavonoids, especially genistein, apigenin, amentoflavone, baicalein, quercetin, licochalcone A, and biochanin A, play a potential role in redox regulation. Conclusions of this review on the antioxidant aspects of flavonoids highlight the medicinal and folk values of these compounds against oxidative stress and various diseases and ailments. In short, treatment with flavonoids could be a novel therapeutic invention in clinical trials, as we hope.
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Affiliation(s)
- Chandan Sarkar
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
| | - Priya Chaudhary
- Department of Bioscience and Biotechnology, Banasthali Vidyapith, Rajasthan 304022, India
| | - Sarmin Jamaddar
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
| | - Pracheta Janmeda
- Department of Bioscience and Biotechnology, Banasthali Vidyapith, Rajasthan 304022, India
| | - Milon Mondal
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
| | | | - Muhammad Torequl Islam
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
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11
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Yan S, Wu L, Huang L. Concise Semi-Synthesis of a Flavone Glycoside from Marine Angiosperm. HETEROCYCLES 2022. [DOI: 10.3987/com-22-14626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Tawfeek SE, Shalaby AM, Alabiad MA, Albackoosh AAAA, Albakoush KMM, Omira MMA. Metanil yellow promotes oxidative stress, astrogliosis, and apoptosis in the cerebellar cortex of adult male rat with possible protective effect of scutellarin: A histological and immunohistochemical study. Tissue Cell 2021; 73:101624. [PMID: 34419739 DOI: 10.1016/j.tice.2021.101624] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 08/03/2021] [Accepted: 08/14/2021] [Indexed: 12/19/2022]
Abstract
Metanil yellow is a food dye that has harmful impacts on different body systems. Scutellarin has antioxidant, antiapoptotic, and anti-inflammatory activities. The aim of the current research was to study the effect of chronic administration of metanil yellow on the cerebellar cortex of rats and to evaluate the protective effect of scutellarin. Forty adult male rats were allocated into four groups: group I acted as control, group II was administrated scutellarin (100 mg/kg/day), group III was administrated metanil yellow (200 mg/kg/day), and group IV was administrated scutellarin and metanil yellow as in group II and group III. The agents were administered via oral gavage for 8 weeks. Metanil yellow induced a significant rise in the malondialdehyde coupled with a significant reduction in the superoxide dismutase and glutathione peroxidase. The Purkinje cells were irregular and shrunken with condensed nuclei. A significant elevation in glial fibrillary acidic protein (GFAP) and cleaved caspase-3 as well as a significant reduction of synaptophysin expression were revealed in comparison with the control group. Interestingly, few changes were noticed in rats given metanil yellow concomitant with scutellarin. In conclusion, scutellarin could protect against metanil yellow-induced alterations in the cerebellar cortex by reducing oxidative stress and minimizing gliosis.
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Affiliation(s)
- Shereen Elsayed Tawfeek
- Human Anatomy and Embryology Department, Faculty of Medicine, Zagazig University, Egypt; Anatomy Department, College of Medicine, Jouf University, Sakaka, Saudi Arabia
| | - Amany Mohamed Shalaby
- Histology and Cell Biology Department, Faculty of Medicine, Tanta University, Tanta, 31527, Egypt
| | - Mohamed Ali Alabiad
- Pathology Department, Faculty of Medicine, Zagazig University, Zagazig, 44519, Egypt.
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13
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Scutellarin ameliorates neonatal hypoxic-ischemic encephalopathy associated with GAP43-dependent signaling pathway. Chin Med 2021; 16:105. [PMID: 34663387 PMCID: PMC8524967 DOI: 10.1186/s13020-021-00517-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 10/07/2021] [Indexed: 02/08/2023] Open
Abstract
Background Neonatal hypoxic-ischemic encephalopathy (HIE) refers to the perinatal asphyxia caused by the cerebral hypoxic-ischemic injury. The current study was aimed at investigating the therapeutic efficacy of Scutellarin (Scu) administration on neurological impairments induced by hypoxic-ischemic injury and exploring the underlying mechanisms. Methods Primary cortical neurons were cultured and subjected to oxygen–glucose deprivation (OGD), and then treated with Scu administration. The growth status of neurons was observed by immunofluorescence staining of TUJ1 and TUNEL. Besides, the mRNA level of growth-associated protein 43 (GAP43) in OGD neurons with Scu treatment was detected by quantitative real-time polymerase chain reaction (qRT-PCR). To further verify the role of GAP43 in Scu treatment, GAP43 siRNA and knockout were applied in vitro and in vivo. Moreover, behavioral evaluations were performed to elucidate the function of GAP43 in the Scu-ameliorated long-term neurological impairments caused by HI insult. The underlying biological mechanism of Scu treatment was further elucidated via network pharmacological analysis. Finally, the interactive genes with GAP43 were identified by Gene MANIA and further validated by qRT-PCR. Results Our data demonstrated that Scu treatment increased the number of neurons and axon growth, and suppressed cell apoptosis in vitro. And the expression of GAP43 was downregulated after OGD, but reversed by Scu administration. Besides, GAP43 silencing aggravated the Scu-ameliorated neuronal death and axonal damage. Meanwhile, GAP43 knockout enlarged brain infarct area and deteriorated the cognitive and motor dysfunctions of HI rats. Further, network pharmacological analysis revealed the drug targets of Scu participated in such biological processes as neuronal death and regulation of neuronal death, and apoptosis-related pathways. GAP43 exhibited close relationship with PTN, JAK2 and STAT3, and GAP43 silencing upregulated the levels of PTN, JAK2 and STAT3. Conclusions Collectively, our findings revealed Scu treatment attenuated long-term neurological impairments after HI by suppressing neuronal death and enhancing neurite elongation through GAP43-dependent pathway. The crucial role of Scutellarin in neuroprotection provided a novel possible therapeutic agent for the treatment of neonatal HIE. Graphic abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13020-021-00517-z.
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14
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Huo Y, Mijiti A, Cai R, Gao Z, Aini M, Mijiti A, Wang Z, Qie R. Scutellarin alleviates type 2 diabetes (HFD/low dose STZ)-induced cardiac injury through modulation of oxidative stress, inflammation, apoptosis and fibrosis in mice. Hum Exp Toxicol 2021; 40:S460-S474. [PMID: 34610774 DOI: 10.1177/09603271211045948] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Diabetes is a serious global health concern which severely affected public health as well as socio-economic growth worldwide. Scutellarin (SCU), a bioactive flavonoid, is known for its efficacious action against a range of ailments including cardiovascular problems. The present study was conducted to find out possible protective effect and its associated mechanisms of SCU on experimental type 2 diabetes-induced cardiac injury. METHODS Type 2 diabetes was induced by treating animals with high fat diet for 4 weeks and a single intraperitoneal dose (35 mg/kg body weight) of streptozotocin and diabetic animals received SCU (10 or 20 mg/kg/day) for 6 weeks. RESULTS Scutellarin attenuated type 2 diabetes-induced hyperglycemia, bodyweight loss, hyperlipidaemia, cardiac functional damage with histopathological alterations and fibrosis. Scutellarin treatment to type 2 diabetic mice ameliorated oxidative stress, inflammatory status and apoptosis in heart. Furthermore, the underlying mechanisms for such mitigation of oxidative stress, inflammation and apoptosis in heart involved modulation of Nrf2/Keap1 pathway, TLR4/MyD88/NF-κB mediated inflammatory pathway and intrinsic (mitochondrial) apoptosis pathway, respectively. CONCLUSIONS The current findings suggest that SCU is effective in protecting type 2 diabetes-induced cardiac injury by attenuating oxidative stress and inflammatory responses and apoptosis, and it is also worth considering the efficacious potential of SCU to treat diabetic cardiomyopathy patients.
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Affiliation(s)
- Yan Huo
- Department of Endocrinology, 38044Xuzhou first People's Hospital (The Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University), Xuzhou, Jiangsu, China
| | - Abudureheman Mijiti
- Department of Cardiac electrophysiology group, The Second People's Hospital in Kashgar, Kashgar, Xinjiang, China
| | - Ruonan Cai
- Department of Endocrinology, 38044Xuzhou first People's Hospital (The Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University), Xuzhou, Jiangsu, China
| | - Zhaohua Gao
- Department of Endocrinology, 38044Xuzhou first People's Hospital (The Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University), Xuzhou, Jiangsu, China
| | - Maierpu Aini
- Department of Cardiac electrophysiology group, The Second People's Hospital in Kashgar, Kashgar, Xinjiang, China
| | - Abudukadier Mijiti
- Department of Emergency Medicine, The First People's Hospital in Kashgar, Kashgar, Xinjiang, China
| | - Zhaoling Wang
- Department of Endocrinology, 38044Xuzhou first People's Hospital (The Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University), Xuzhou, Jiangsu, China
| | - Rui Qie
- Department of Emergency, 118437First Affiliated Hospital of Heilongjiang University of Traditional Chinese Medicine, Haerbin, Heilongjiang, China
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15
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Wu R, Liang Y, Xu M, Fu K, Zhang Y, Wu L, Wang Z. Advances in Chemical Constituents, Clinical Applications, Pharmacology, Pharmacokinetics and Toxicology of Erigeron breviscapus. Front Pharmacol 2021; 12:656335. [PMID: 34539390 PMCID: PMC8443777 DOI: 10.3389/fphar.2021.656335] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 07/06/2021] [Indexed: 12/25/2022] Open
Abstract
Dengzhanxixin (DZXX), the dried whole plant of Erigeron breviscapus (Vaniot) Hand.-Mazz., belonging to Compositae and first published in Materia Medica of South Yunnan by Lan Mao in the Ming Dynasty (1368 AD–1644 AD), is included in Medicinal Materials and Decoction Pieces of the 2020 edition of the Pharmacopeia of the People’s Republic of China. Its main chemical components are flavonoids that mainly include flavonoid, flavonols, dihydroflavones, flavonol glycosides, flavonoid glycosides, coffee acyl compounds, and other substances, such as volatile oil compounds, coumarins, aromatic acids, pentacyclic terpenoids, phytosterols, and xanthones. Among them, scutellarin and 1,5-dicoffeoylquininic acid are the main active components of DZXX. DZXX has pharmacological effects, such as improving cerebral and cerebrovascular ischemia, increasing blood flow, inhibiting platelet aggregation, promoting antithrombotic formation, improving microcirculation, reducing blood viscosity, protecting optic nerves, exhibiting anti-inflammatory properties, scavenging free radicals, and eliciting antioxidant activities. It is widely used in the treatment of cardiovascular and cerebrovascular ischemic diseases, kidney diseases, liver diseases, diabetic complications, and glaucoma. Pharmacokinetic studies have shown that the active components of DZXX have a low bioavailability and a high elimination rate in vivo. Nevertheless, its utilization can be improved through liposome preparation and combination with other drugs. Acute and subacute toxicity studies have shown that DZXX is a safe medicinal material widely used in clinical settings. However, its target and drug action mechanism are unclear because of the complexity of its composition. In this paper, the clinical application and pharmacological toxicology of DZXX are reviewed to provide a reference for further studying its active components and action mechanism.
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Affiliation(s)
- Ruixia Wu
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Sichuan, China
| | - Yan Liang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Sichuan, China
| | - Min Xu
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Sichuan, China
| | - Ke Fu
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Sichuan, China
| | - Yangliu Zhang
- College of Ethnomedicine, Chengdu University of Traditional Chinese Medicine, Sichuan, China
| | - Lei Wu
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Sichuan, China
| | - Zhang Wang
- College of Ethnomedicine, Chengdu University of Traditional Chinese Medicine, Sichuan, China
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16
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Zhu J, Sainulabdeen A, Akers K, Adi V, Sims JR, Yarsky E, Yan Y, Yu Y, Ishikawa H, Leung CK, Wollstein G, Schuman JS, Wei W, Chan KC. Oral Scutellarin Treatment Ameliorates Retinal Thinning and Visual Deficits in Experimental Glaucoma. Front Med (Lausanne) 2021; 8:681169. [PMID: 34414202 PMCID: PMC8369066 DOI: 10.3389/fmed.2021.681169] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 07/07/2021] [Indexed: 01/29/2023] Open
Abstract
Purpose: Intraocular pressure (IOP) is currently the only modifiable risk factor for glaucoma, yet glaucoma can continue to progress despite controlled IOP. Thus, development of glaucoma neurotherapeutics remains an unmet need. Scutellarin is a flavonoid that can exert neuroprotective effects in the eye and brain. Here, we investigated the neurobehavioral effects of scutellarin treatment in a chronic IOP elevation model. Methods: Ten adult C57BL/6J mice were unilaterally injected with an optically clear hydrogel into the anterior chamber to obstruct aqueous outflow and induce chronic IOP elevation. Eight other mice received unilateral intracameral injection of phosphate-buffered saline only. Another eight mice with hydrogel-induced unilateral chronic IOP elevation also received daily oral gavage of 300 mg/kg scutellarin. Tonometry, optical coherence tomography, and optokinetics were performed longitudinally for 4 weeks to monitor the IOP, retinal nerve fiber layer thickness, total retinal thickness, visual acuity, and contrast sensitivity of both eyes in all three groups. Results: Intracameral hydrogel injection resulted in unilateral chronic IOP elevation with no significant inter-eye IOP difference between scutellarin treatment and untreated groups. Upon scutellarin treatment, the hydrogel-injected eyes showed less retinal thinning and reduced visual behavioral deficits when compared to the untreated, hydrogel-injected eyes. No significant difference in retinal thickness or optokinetic measures was found in the contralateral, non-treated eyes over time or between all groups. Conclusion: Using the non-invasive measuring platform, oral scutellarin treatment appeared to preserve retinal structure and visual function upon chronic IOP elevation in mice. Scutellarin may be a novel neurotherapeutic agent for glaucoma treatment.
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Affiliation(s)
- Jingyuan Zhu
- Beijing Tongren Eye Center, Beijing Key Laboratory of Intraocular Tumor Diagnosis and Treatment, Beijing Ophthalmology & Visual Sciences Key Lab, Medical Artificial Intelligence Research and Verification Key Laboratory of the Ministry of Industry and Information Technology, Beijing Tongren Hospital, Capital Medical University, Beijing, China,Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, NY, United States
| | - Anoop Sainulabdeen
- Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, NY, United States,Department of Surgery and Radiology, College of Veterinary and Animal Sciences, Kerala Veterinary and Animal Sciences University, Thrissur, India
| | - Krystal Akers
- Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, NY, United States
| | - Vishnu Adi
- Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, NY, United States
| | - Jeffrey R. Sims
- Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, NY, United States
| | - Eva Yarsky
- Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, NY, United States
| | - Yi Yan
- Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, NY, United States
| | - Yu Yu
- Pleryon Therapeutics Limited, Shenzhen, China
| | - Hiroshi Ishikawa
- Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, NY, United States,Department of Biomedical Engineering, Tandon School of Engineering, New York University, New York, NY, United States
| | - Christopher K. Leung
- Hong Kong Eye Hospital, University Eye Center, Hong Kong, China,Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China,Department of Ophthalmology, The University of Hong Kong, Hong Kong, China
| | - Gadi Wollstein
- Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, NY, United States,Department of Biomedical Engineering, Tandon School of Engineering, New York University, New York, NY, United States
| | - Joel S. Schuman
- Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, NY, United States,Department of Biomedical Engineering, Tandon School of Engineering, New York University, New York, NY, United States,Center for Neural Science, College of Arts and Science, New York University, New York, NY, United States,Neuroscience Institute, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, NY, United States
| | - Wenbin Wei
- Beijing Tongren Eye Center, Beijing Key Laboratory of Intraocular Tumor Diagnosis and Treatment, Beijing Ophthalmology & Visual Sciences Key Lab, Medical Artificial Intelligence Research and Verification Key Laboratory of the Ministry of Industry and Information Technology, Beijing Tongren Hospital, Capital Medical University, Beijing, China,Wenbin Wei
| | - Kevin C. Chan
- Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, NY, United States,Department of Biomedical Engineering, Tandon School of Engineering, New York University, New York, NY, United States,Center for Neural Science, College of Arts and Science, New York University, New York, NY, United States,Neuroscience Institute, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, NY, United States,Department of Radiology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, NY, United States,*Correspondence: Kevin C. Chan
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17
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Xie Q, Li H, Lu D, Yuan J, Ma R, Li J, Ren M, Li Y, Chen H, Wang J, Gong D. Neuroprotective Effect for Cerebral Ischemia by Natural Products: A Review. Front Pharmacol 2021; 12:607412. [PMID: 33967750 PMCID: PMC8102015 DOI: 10.3389/fphar.2021.607412] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 03/08/2021] [Indexed: 12/12/2022] Open
Abstract
Natural products have a significant role in the prevention of disease and boosting of health in humans and animals. Stroke is a disease with high prevalence and incidence, the pathogenesis is a complex cascade reaction. In recent years, it’s reported that a vast number of natural products have demonstrated beneficial effects on stroke worldwide. Natural products have been discovered to modulate activities with multiple targets and signaling pathways to exert neuroprotection via direct or indirect effects on enzymes, such as kinases, regulatory receptors, and proteins. This review provides a comprehensive summary of the established pharmacological effects and multiple target mechanisms of natural products for cerebral ischemic injury in vitro and in vivo preclinical models, and their potential neuro-therapeutic applications. In addition, the biological activity of natural products is closely related to their structure, and the structure-activity relationship of most natural products in neuroprotection is lacking, which should be further explored in future. Overall, we stress on natural products for their role in neuroprotection, and this wide band of pharmacological or biological activities has made them suitable candidates for the treatment of stroke.
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Affiliation(s)
- Qian Xie
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hongyan Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Danni Lu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jianmei Yuan
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Rong Ma
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jinxiu Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Mihong Ren
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yong Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hai Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jian Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Daoyin Gong
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
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18
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Yuan S, Zhang T. Boeravinone B Protects Brain against Cerebral Ichemia Reperfusion Injury in Rats: Possible Role of Anti-inflammatory and Antioxidant. J Oleo Sci 2021; 70:927-936. [PMID: 34193669 DOI: 10.5650/jos.ess21037] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
It is well known that inflammatory reactions and oxidative stress play a key role in the pathogenesis of cerebral ischemia and secondary injury. Boeravinone B (BB) proofed their anti-inflammatory and antioxidant effect, but their neuroprotective effects still unknown. In this experimental study, we explore the neuro-protective effect of Boeravinone B on the ischemia/reperfusion and explore the possible mechanism. Male Wistar rats were used for the current experimental study. First induces natural I/R injury in rats and treated with BB and nifedipine, respectively. Rats were subjected to ischemia after 6 consecutive days by occlusion of the bilateral common carotid arteries (BCCAO). Neurological score, biochemical, antioxidant, pro-inflammatory cytokines and inflammatory parameters were estimated in the serum and brain tissue. BB treatment significantly (p < 0.001) suppressed neuronal injury, dose-dependently decreased the cerebral water content. BB treatment altered the pro-inflammatory cytokines, antioxidant and inflammatory mediators in the serum and brain tissue. BB regulated the expression of glycine (Gly), glutamic acid (Glu), taurine (Tau), aspartic acid (Asp) and γ-aminobutyric acid (GABA) and enhanced the activity of Na+, K+ ATPase and Ca2+ ATPase. BB significantly (p < 0.001) reduced antioxidant enzymes such as glutathione (GSH), glutathione peroxidase (GPx), catalase (CAT), malondialdehyde (MDA), glutathione reductase (GR); inflammatory cytokines include interleukin-4 (IL-4), interleukin-1 (IL-1), tumor necrosis factor-α (TNF-α), interleukin-10 (IL-10), interleukin-6 (IL-6) and interleukin-1β (IL-1β); inflammatory mediators include prostaglandin (PGE2), nuclear kappa factor B (NF-κB) and cyclooxygenase-2 (COX-2), respectively. In this study, we have found that Boeravinone B exhibited protection against cerebral I/R by reducing oxidative stress and inflammatory reaction.
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Affiliation(s)
- Shaojie Yuan
- Department of Neurology, Xingtai People's Hospital
| | - Tong Zhang
- Department of Neurology, Xingtai People's Hospital
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19
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Zheng YF, Li DY, Sun J, Cheng JM, Chai C, Zhang L, Peng GP. Comprehensive Comparison of Two Color Varieties of Perillae Folium Using Rapid Resolution Liquid Chromatography Coupled with Quadruple-Time-of-Flight Mass Spectrometry (RRLC-Q/TOF-MS)-Based Metabolic Profile and in Vivo/ in Vitro Anti-Oxidative Activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:14684-14697. [PMID: 33237758 DOI: 10.1021/acs.jafc.0c05407] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Perillae Folium (PF), which is extensively used as a dietary vegetable and medicinal herb, contains two varietal forms corresponding to purple perilla leaf (Perilla frutescens var. crispa) and green perilla leaf (Perilla frutescens var. frutescens). However, the components and efficacy of different PF varieties remain underexplored so far. In the present work, a nontargeted rapid resolution liquid chromatography coupled with quadruple-time-of-flight mass spectrometry (RRLC-Q/TOF-MS)-based metabolomics approach was developed to investigate the difference in the chemical compositions between green PF and purple PF. A total of 71 compounds were identified or tentatively identified, among which 7 phenolic acids, 10 flavonoids, and 9 anthocyanins were characterized as differential metabolites. In addition, heatmap visualization and ultraperformance liquid chromatography coupled with triple-quadrupole tandem mass spectrometry (UPLC-TQ-MS/MS)-based quantitative analysis revealed that flavonoids and anthocyanins especially had higher contents in purple PF. Furthermore, the anti-oxidative activities of two varietal PFs were evaluated in vivo zebrafish and in vitro human umbilical vein endothelial cells (HUVECs). The results showed that the purple PF had more pronounced anti-oxidative activities than did the green PF, which may be due to the presence of anthocyanins and a higher concentration of flavonoids in its phytochemical profile. The outcome of the present study is expected to provide useful insight on the comprehensive utilization of a PF resource.
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Affiliation(s)
- Yun-Feng Zheng
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Department of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210046, China
| | - Dan-Yang Li
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Department of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210046, China
| | - Jie Sun
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Department of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210046, China
| | - Jian-Ming Cheng
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Department of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210046, China
| | - Chuan Chai
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Department of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210046, China
| | - Li Zhang
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Department of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210046, China
| | - Guo-Ping Peng
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Department of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210046, China
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20
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Scutellarin attenuates hypoxia/reoxygenation injury in hepatocytes by inhibiting apoptosis and oxidative stress through regulating Keap1/Nrf2/ARE signaling. Biosci Rep 2020; 39:220936. [PMID: 31654068 PMCID: PMC6851522 DOI: 10.1042/bsr20192501] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 09/26/2019] [Accepted: 10/08/2019] [Indexed: 12/18/2022] Open
Abstract
Scutellarin is a natural flavonoid that has been found to exhibit anti-ischemic effect. However, the effect of scutellarin on hepatic hypoxia/reoxygenation (ischemia-reperfusion (I/R)) injury remains unknown. The aim of the present study was to explore the protective effect of scutellarin on I/R-induced injury in hepatocytes. Our results showed that scutellarin improved cell viability in hepatocytes exposed to hypoxia/reoxygenation (H/R). Scutellarin treatment resulted in decreased levels of reactive oxygen species (ROS) and malondialdehyde (MDA), and increased superoxide dismutase (SOD) activity in H/R-induced hepatocytes. In addition, scutellarin reduced cell apoptosis in H/R-stimulated hepatocytes, as proved by the decreased apoptotic rate. Moreover, scutellarin significantly up-regulated bcl-2 expression and down-regulated bax expression in hepatocytes exposed to H/R. Furthermore, scutellarin treatment caused significant decrease in Keap1 expression and increase in nuclear Nrf2 expression. Besides, scutellarin induced the mRNA expressions of heme oxygenase-1 (HO-1) and NAD(P)H:quinone oxidoreductase 1 (NQO1). Inhibition of Nrf2 significantly reversed the protective effects of scutellarin on H/R-stimulated hepatocytes. In conclusion, these findings demonstrated that scutellarin protected hepatocytes from H/R-induced oxidative injury through regulating the Keap1/Nrf2/ARE signaling pathway, indicating a potential relevance of scutellarin in attenuating hepatic I/R injury.
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21
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Swapna Sasi US, Sindhu G, Raghu KG. Fructose-palmitate based high calorie induce steatosis in HepG2 cells via mitochondrial dysfunction: An in vitro approach. Toxicol In Vitro 2020; 68:104952. [PMID: 32730863 DOI: 10.1016/j.tiv.2020.104952] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 07/10/2020] [Accepted: 07/23/2020] [Indexed: 02/08/2023]
Abstract
A proper in vitro model for conducting research on high energy food induced steatosis via defective energy metabolism in the liver is not visible in the literature. The present study developed an in vitro model in HepG2 cell line to mimic high energy diet induced steatosis in liver via mitochondrial dysfunction. For this, HepG2 cells were treated with fructose (100 mM) and palmitate (100 μM) for about 24 h and subjected for biochemical analysis relevant to lipogenesis and mitochondrial biology. Our findings showed that fructose-palmitate treatment caused significant lipid accumulation and rise in lipogenic proteins. Further studies showed alteration in mitochondrial integrity, dynamics and oxidative phosphorylation. Mitochondrial integrity was affected by the dissipation of trans-membrane potential, surplus mitochondrial superoxide with calcium overload. Similarly, mitochondrial dynamics were altered with up regulation of mitochondrial fission proteins: DRP1 and FIS1, cytochrome c release, caspase-3 activity and apoptosis. Various components of the electron transport chain: complex I, II, III and IV were altered with significant depletion in oxygen consumption. Overall our findings illustrate the dominant role of mitochondria in the genesis of high fructose-palmitate induced steatosis in HepG2 cells. Since continuous high energy food consumption is the main inducer of steatosis, this model is found to be an ideal one for preliminary and basic research in the area of liver disease via mitochondrial dysfunction.
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Affiliation(s)
- U S Swapna Sasi
- Academy of Scientific & Innovative Research (AcSIR), CSIR-HRDC, Ghaziabad, Uttar Pradesh 201002, India; Biochemistry and Molecular Mechanism Laboratory, Agro-processing and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram, Kerala, 695019, India.
| | - G Sindhu
- Biochemistry and Molecular Mechanism Laboratory, Agro-processing and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram, Kerala, 695019, India.
| | - K G Raghu
- Academy of Scientific & Innovative Research (AcSIR), CSIR-HRDC, Ghaziabad, Uttar Pradesh 201002, India; Biochemistry and Molecular Mechanism Laboratory, Agro-processing and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram, Kerala, 695019, India.
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22
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Yao YY, Ling EA, Lu D. Microglia mediated neuroinflammation - signaling regulation and therapeutic considerations with special reference to some natural compounds. Histol Histopathol 2020; 35:1229-1250. [PMID: 32662061 DOI: 10.14670/hh-18-239] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Neuroinflammation plays a central role in multiple neurodegenerative diseases and neurological disorders such as Alzheimer's disease (AD), Parkinson's disease (PD), cerebral ischemic injury etc. In this connection, microglia, the key players in the central nervous system, mediate the inflammatory response process. In brain injuries, activated microglia can clear the cellular debris and invading pathogens and release neurotrophic factors; however, prolonged microglia activation may cause neuronal death through excessive release of inflammatory mediators. Therefore, it is of paramount importance to understand the underlying molecular mechanisms of microglia activation to design an effective therapeutic strategy to alleviate neuronal injury. Recent studies have shown that some natural compounds and herbal extracts possess anti-inflammatory properties that may suppress microglial activation and ameliorate neuroinflammation and hence are neuroprotective. In this review, we will update some of the common signaling pathways that regulate microglia activation. Among the various signaling pathways, the Notch-1, mitogen-activated protein kinases (MAPKs), and nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) have been reported to exacerbate microglia mediated neuroinflammation that is implicated in different neuropathological diseases. The search for natural compounds or agents, specifically those derived from natural herbal extracts such as Gastrodin, scutellarin, RG1 etc. has been the focus of many of our recent studies because they have been found to regulate microglia activation. The pharmacological effects of these agents and their potential mechanisms for regulating microglia activation are systematically reviewed here for a fuller understanding of their biochemical action and therapeutic potential for treatment of microglia mediated neuropathological diseases.
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Affiliation(s)
- Yue-Yi Yao
- Technology Transfer Center, Kunming Medical University, Kunming, China
| | - Eng-Ang Ling
- Department of Anatomy, Young Loo Lin School of Medicine, National University of Singapore, Singapore.
| | - Di Lu
- Technology Transfer Center, Kunming Medical University, Kunming, China.
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23
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Li T, Wu D, Yang Y, Xiao T, Han Y, Li J, Liu T, Li L, Dai Z, Li Y, Fu X. Synthesis, pharmacological evaluation and mechanistic study of scutellarin methyl ester -4'-dipeptide conjugates for the treatment of hypoxic-ischemic encephalopathy (HIE) in rat pups. Bioorg Chem 2020; 101:103980. [PMID: 32540782 DOI: 10.1016/j.bioorg.2020.103980] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 04/13/2020] [Accepted: 05/29/2020] [Indexed: 12/24/2022]
Abstract
A series of novel scutellarin methyl ester-4'-dipeptide conjugates exhibiting active transport characteristics and protection against pathological damage caused by hypoxic-ischemic encephalopathy (HIE) were successfully designed and synthesized. The physiochemical properties of the obtained compounds, as well as the Caco-2 cell-based permeability and uptake into hPepT1-MDCK cells were evaluated using various analytical methods. Scutellarin methyl ester-4'-Val-homo-Leu dipeptide (5k) was determined as the optimal candidate with a high apparent permeability coefficient (Papp A to B) of 1.95 ± 0.24 × 10-6 cm/s, low ER (Papp BL to AP/Papp AP to BL) of 0.52 in Caco-2 cells, and high uptake of 25.47 μmol/mg/min in hPepT1-MDCK cells. Comprehensive mechanistic studies demonstrated that pre-treatment of PC12 cells with 5k resulted in more potent anti-oxidative activity, which was manifested by a significant decrease in the malondialdehyde (MDA) and reactive oxygen species (ROS) levels, attenuation of the H2O2-induced apoptotic cell accumulation in the sub-G1 peak, and improvement in the expression of the relevant apoptotic proteins (Bcl-2, Bax, and cleave-caspase-3). Moreover, evaluation of in vivo neuroprotective characteristics in hypoxic-ischemic rat pups revealed that 5k significantly reduced infarction and alleviated the related pathomorphological damage. The compound was also shown to ameliorate the neurological deficit at 48 h as well as to decrease the brain tissue loss at 4 weeks. Conjugate 5k was demonstrated to reduce the amyloid precursor protein (APP) and β-site APP-converting enzyme-1 (BACE-1) expression. Pharmacokinetic characterization of 5k indicated favorable druggability and pharmacokinetic properties. The conducted docking studies revealed optimal binding of 5k to PepT1. Hydrogen bonding as well as cation-π interactions with the corresponding amino acid residues in the target active site were clearly observed. The obtained results suggest 5k as a potential candidate for anti-HIE therapy, which merits further investigation.
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Affiliation(s)
- Tao Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550004, Guizhou, China; School of Pharmacy, Guizhou Medical University, Guiyang 550004, China; National Engineering Research Center of Miao's Medicines & Engineering Research Center for the Development and Application of Ethnic Medicine and TCM, Ministry of Education, Guiyang 550004, Guizhou, China
| | - Dirong Wu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550004, Guizhou, China; School of Pharmacy, Guizhou Medical University, Guiyang 550004, China; National Engineering Research Center of Miao's Medicines & Engineering Research Center for the Development and Application of Ethnic Medicine and TCM, Ministry of Education, Guiyang 550004, Guizhou, China
| | - Yang Yang
- The Second People's Hospital of Jiangyou City, Jiangyou City 621701, Sichuan Province, China
| | - Tao Xiao
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550004, Guizhou, China; School of Pharmacy, Guizhou Medical University, Guiyang 550004, China; National Engineering Research Center of Miao's Medicines & Engineering Research Center for the Development and Application of Ethnic Medicine and TCM, Ministry of Education, Guiyang 550004, Guizhou, China
| | - Yilin Han
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550004, Guizhou, China; School of Pharmacy, Guizhou Medical University, Guiyang 550004, China; National Engineering Research Center of Miao's Medicines & Engineering Research Center for the Development and Application of Ethnic Medicine and TCM, Ministry of Education, Guiyang 550004, Guizhou, China
| | - Jing Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550004, Guizhou, China; School of Pharmacy, Guizhou Medical University, Guiyang 550004, China; National Engineering Research Center of Miao's Medicines & Engineering Research Center for the Development and Application of Ethnic Medicine and TCM, Ministry of Education, Guiyang 550004, Guizhou, China
| | - Ting Liu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550004, Guizhou, China; School of Pharmacy, Guizhou Medical University, Guiyang 550004, China; Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang 550004, China
| | - Li Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550004, Guizhou, China; School of Pharmacy, Guizhou Medical University, Guiyang 550004, China
| | - Zeqin Dai
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550004, Guizhou, China; School of Pharmacy, Guizhou Medical University, Guiyang 550004, China
| | - Yongjun Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550004, Guizhou, China; Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang 550004, China; National Engineering Research Center of Miao's Medicines & Engineering Research Center for the Development and Application of Ethnic Medicine and TCM, Ministry of Education, Guiyang 550004, Guizhou, China
| | - Xiaozhong Fu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550004, Guizhou, China; School of Pharmacy, Guizhou Medical University, Guiyang 550004, China; National Engineering Research Center of Miao's Medicines & Engineering Research Center for the Development and Application of Ethnic Medicine and TCM, Ministry of Education, Guiyang 550004, Guizhou, China.
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24
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Luo Z, Hu Z, Bian Y, Su W, Li X, Li S, Wu J, Shi L, Song Y, Zheng G, Ni W, Xue J. Scutellarin Attenuates the IL-1β-Induced Inflammation in Mouse Chondrocytes and Prevents Osteoarthritic Progression. Front Pharmacol 2020; 11:107. [PMID: 32161544 PMCID: PMC7054241 DOI: 10.3389/fphar.2020.00107] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 01/28/2020] [Indexed: 12/24/2022] Open
Abstract
Osteoarthritis (OA) is a chronic degenerative disease wherein the articular cartilage exhibits inflammation and degradation. Scutellarin (SCU) is a flavonoid glycoside with a range of pharmacological activities, as shown in previous studies demonstrating its anti-inflammatory activity. How SCU impacts the progression of OA, however, has not been explored to date. Herein, we assessed the impact of SCU on murine chondrocytes in an OA model system. In in vitro assays, we measured chondrocyte expression of key OA-associated factors such as matrix metalloproteinase 13 (MMP-13), a disintegrin and metalloproteinase with thrombospondin motifs 5 (ADAMTS-5), cyclooxygenase-2 (COX-2), and inducible nitric oxide synthase (iNOS) via qRT-PCR and Western blotting, the expression of interleukin 6 (IL-6), tumor necrosis factor-α (TNF-α), and prostaglandin E2 (PGE2) were detected by qRT-PCR. Our results showed that the downregulation of MMP-13, ADAMTS-5, COX-2, and iNOS expression by SCU and the overproduction of IL-6, TNF-α, and PGE2 induced by IL-1β were all inhibited by SCU in a concentration-dependent manner. Moreover, SCU was able to reverse aggrecan and collagen II degradation and nuclear factor-κB (NF-κB) and nuclear factor erythroid-derived 2-like 2 (Nrf2) signaling pathway activation both in vivo and in vitro. We further used a destabilization of the medial meniscus (DMM) murine model of OA to explore the therapeutic benefits of SCU in vivo. Together, our findings suggest SCU to be a potentially valuable therapeutic agent useful for treating OA.
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Affiliation(s)
- Zucheng Luo
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Zhichao Hu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Yujie Bian
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Wenting Su
- Department of Dermatology, Wenzhou Hospital of Integrated Traditional Chinese and Western Medicine, Wenzhou, China
| | - Xiaoyang Li
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Shi Li
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Jianbin Wu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Li Shi
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Yonghuan Song
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Gang Zheng
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Wenfei Ni
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Jixin Xue
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
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25
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Scutellarin Exerts Anti-Inflammatory Effects in Activated Microglia/Brain Macrophage in Cerebral Ischemia and in Activated BV-2 Microglia Through Regulation of MAPKs Signaling Pathway. Neuromolecular Med 2019; 22:264-277. [DOI: 10.1007/s12017-019-08582-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 11/18/2019] [Indexed: 01/04/2023]
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26
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In vitro and in vivo activities of flavonoids – apigenin, baicalin, chrysin, scutellarin – in regulation of hypertension – a review for their possible effects in pregnancy-induced hypertension. HERBA POLONICA 2019. [DOI: 10.2478/hepo-2019-0001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Summary
Flavonoids and their conjugates are the most important group of natural chemical compounds in drug discovery and development. The search for pharmacological activity and new mechanisms of activity of these chemical compounds, which may inhibit mediators of inflammation and influence the structure and function of endothelial cells, can be an interesting pharmacological strategy for the prevention and adjunctive treatments of hypertension, especially induced by pregnancy. Because cardiovascular diseases have multi-factorial pathogenesis these natural chemical compounds with wide spectrum of biological activities are the most interesting source of new drugs. Extracts from one of the most popular plant used in Traditional Chinese Medicine, Scutellaria baicalensis Georgi could be a very interesting source of flavonoids because of its exact content in quercetin, apigenin, chrysin and scutellarin as well as in baicalin. These flavonoids exert vasoprotective properties and many activities such as: anti-oxidative via several pathways, anti-in-flammatory, anti-ischaemic, cardioprotective and anti-hypertensive. However, there is lack of summaries of results of studies in context of potential and future application of flavonoids with determined composition and activity. Our review aims to provide a literature survey of in vitro, in vivo and ex vivo pharmacological studies of selected flavonoids (apigenin, chrysin and scutellarin, baicalin) in various models of hypertension carried out in 2008–2018.
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27
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Scutellarin protects human cardiac microvascular endothelial cells with hypoxia-reoxygenation injury via JAK2/STAT3 signal pathway. CHINESE HERBAL MEDICINES 2019. [DOI: 10.1016/j.chmed.2018.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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28
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Wang L, Ma Q. Clinical benefits and pharmacology of scutellarin: A comprehensive review. Pharmacol Ther 2018; 190:105-127. [DOI: 10.1016/j.pharmthera.2018.05.006] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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29
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Srinivasulu C, Ramgopal M, Ramanjaneyulu G, Anuradha CM, Suresh Kumar C. Syringic acid (SA) ‒ A Review of Its Occurrence, Biosynthesis, Pharmacological and Industrial Importance. Biomed Pharmacother 2018; 108:547-557. [PMID: 30243088 DOI: 10.1016/j.biopha.2018.09.069] [Citation(s) in RCA: 246] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 09/10/2018] [Accepted: 09/11/2018] [Indexed: 02/07/2023] Open
Abstract
The use of phytochemicals in control of human diseases have been considerable public and scientific interest in current days. Syringic acid (SA), a phenolic compound often found in fruits and vegetables and which is synthesized via shikimic acid pathway in plants. It shows a wide range of therapeutic applications in prevention of diabetes, CVDs, cancer, cerebral ischemia; as well as it possess anti-oxidant, antimicrobial, anti-inflammatory, antiendotoxic, neuro and hepatoprotective activities. It has an effective free radical scavenger and alleviates the oxidative stress markers. The therapeutic property of SA is attributed by the presence of methoxy groups onto the aromatic ring at positions 3 and 5. The strong antioxidant activity of SA may confer its beneficial effects for human health. SA has the potential to modulate enzyme activity, protein dynamics and diverse transcription factors involved in diabetes, inflammation, cancer and angiogenesis. In vivo experimental data and histopathological studies on SA activity has delineated its possible therapeutic mechanisms. Besides usage in biomedical field, SA has greater industrial applications in bioremediation, photocatalytic ozonation, and laccase based catalysis. The present review deals about SA natural sources, biosynthesis, bioavailability, biomedical applications (in vivo and in vito. The review addresses basic information about molecular mechanisms, therapeutic and industrial potential of SA.
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Affiliation(s)
| | - Mopuri Ramgopal
- Department of Biotechnology, Sri Krishnadevaraya University, Anantapuramu 515003, A.P., India
| | - Golla Ramanjaneyulu
- Biochemistry division, CSIR-CIMAP Research Centre, GKVK post, Bangalore-65, K.A., India
| | - C M Anuradha
- Department of Biotechnology, Sri Krishnadevaraya University, Anantapuramu 515003, A.P., India
| | - Chitta Suresh Kumar
- Department of Biochemistry, Sri Krishnadevaraya University, Anantapuramu 515003, A.P., India
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You P, Fu S, Yu K, Xia Y, Wu H, Yang Y, Ma C, Liu D, Chen X, Wang J, Ye X, Liu Y. Scutellarin suppresses neuroinflammation via the inhibition of the AKT/NF-κB and p38/JNK pathway in LPS-induced BV-2 microglial cells. Naunyn Schmiedebergs Arch Pharmacol 2018; 391:743-751. [PMID: 29680917 DOI: 10.1007/s00210-018-1503-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2017] [Accepted: 04/09/2018] [Indexed: 02/08/2023]
Abstract
In vitro and in vivo studies indicate that scutellarin (SCU) exerts anti-inflammatory effects in the central nervous system (CNS) and inhibits microglia activation. This study investigated the anti-neuroinflammation molecular mechanisms exerted by scutellarin in LPS-induced BV-2 cells. The results showed that production of TNF-α, IL-1β, IL-6, and NO and TNF-α, IL-1β, IL-6, and iNOS mRNA were inhibited by scutellarin, which was independent of cytotoxicity as assessed by a CCK8 assay. Western blot analysis indicated that NF-κB-p65 phosphorylation was suppressed by scutellarin via inhibition of IκB degradation and IKKβ activation, which coincided with blockage of nuclear translocation of NF-κB as shown by immunofluorescent staining. Consistent with the inhibition of NF-κB, scutellarin inhibited the phosphorylation of p38, JNK, and AKT without affecting phosphorylation of ERK1/2 or PI3K in LPS-induced BV-2 cells. Overall, the present study suggests that scutellarin inhibits the production of pro-inflammatory mediators via inhibition of the IKK-dependent NF-κB and p38/JNK signaling pathway, which inhibits microglia activation and exerts anti-inflammation, indicating its potential therapeutic effect for neurodegenerative and cerebrovascular diseases.
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Affiliation(s)
- Pengtao You
- Key Laboratory of Resources and Chemistry of Chinese Medicine, Hubei University of Chinese Medicine, 1 HuangJia Hu Road West, Hongshan District, Wuhan, Hubei, 430065, People's Republic of China.
| | - San Fu
- Key Laboratory of Resources and Chemistry of Chinese Medicine, Hubei University of Chinese Medicine, 1 HuangJia Hu Road West, Hongshan District, Wuhan, Hubei, 430065, People's Republic of China
| | - Kun Yu
- School of Pharmacy, Hubei University of Chinese Medicine, Wuhan, Hubei, 430065, People's Republic of China
| | - Yu Xia
- Key Laboratory of Resources and Chemistry of Chinese Medicine, Hubei University of Chinese Medicine, 1 HuangJia Hu Road West, Hongshan District, Wuhan, Hubei, 430065, People's Republic of China
| | - Hezhen Wu
- School of Pharmacy, Hubei University of Chinese Medicine, Wuhan, Hubei, 430065, People's Republic of China
| | - Yanfang Yang
- Key Laboratory of Resources and Chemistry of Chinese Medicine, Hubei University of Chinese Medicine, 1 HuangJia Hu Road West, Hongshan District, Wuhan, Hubei, 430065, People's Republic of China
| | - Chaozhi Ma
- Key Laboratory of Resources and Chemistry of Chinese Medicine, Hubei University of Chinese Medicine, 1 HuangJia Hu Road West, Hongshan District, Wuhan, Hubei, 430065, People's Republic of China
| | - Dan Liu
- Key Laboratory of Resources and Chemistry of Chinese Medicine, Hubei University of Chinese Medicine, 1 HuangJia Hu Road West, Hongshan District, Wuhan, Hubei, 430065, People's Republic of China
| | - Xin Chen
- Key Laboratory of Resources and Chemistry of Chinese Medicine, Hubei University of Chinese Medicine, 1 HuangJia Hu Road West, Hongshan District, Wuhan, Hubei, 430065, People's Republic of China
| | - Jun Wang
- School of Pharmacy, Hubei University of Chinese Medicine, Wuhan, Hubei, 430065, People's Republic of China
| | - Xiaochuan Ye
- Key Laboratory of Resources and Chemistry of Chinese Medicine, Hubei University of Chinese Medicine, 1 HuangJia Hu Road West, Hongshan District, Wuhan, Hubei, 430065, People's Republic of China
| | - Yanwen Liu
- Key Laboratory of Resources and Chemistry of Chinese Medicine, Hubei University of Chinese Medicine, 1 HuangJia Hu Road West, Hongshan District, Wuhan, Hubei, 430065, People's Republic of China
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Zhang X, Ji R, Sun H, Peng J, Ma X, Wang C, Fu Y, Bao L, Jin Y. Scutellarin ameliorates nonalcoholic fatty liver disease through the PPARγ/PGC-1α-Nrf2 pathway. Free Radic Res 2018; 52:198-211. [PMID: 29400110 DOI: 10.1080/10715762.2017.1422602] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is characterised by excessive accumulation of hepatic lipids and oxidative injury of hepatocytes. Scutellarin is a flavonoid glycoside having antioxidative stress activity. Our current study aims to investigate the molecular mechanism of scutellarin ameliorating NAFLD. Scutellarin treatment was applied to male C57BL/6 mice maintained on a high-fat diet (HFD) and HepG2 cells challenged with oleic acid. The antioxidation biochemical indicators and lipid levels in the liver and cells were detected by kits. Liver pathology was observed by light microscope, Oil Red O staining, and transmission electron microscope (TEM). In addition, quantitative real-time polymerase chain reactions (qRT-PCR) and western blot assays were employed to detect the mRNA and protein levels of various antioxidative-related genes in the presence or absence of peroxisome proliferator-activated receptor gamma (PPARγ); inhibitor GW9662. Our results showed that scutellarin could significantly reduce blood lipid levels and enhance antioxidative capacities in both the models. In addition, scutellarin treatment conspicuously activated PPARγ, peroxisome proliferator-activated receptor gamma coactivator-1 alpha (PGC-1α), nuclear factor erythroid-2-related factor (Nrf2), haem oxygenase-1 (HO-1), glutathione S-transferase (GST), and NAD(P)H quinone dehydrogenase one (NQO1), while it significantly inhibited nuclear factor kappa B (NF-κB), Kelch-like ECH-associated protein 1 (Keap1) at both the mRNA and protein levels. However, after interfered by GW9662, scutellarin effect was significantly decreased. The experimental data demonstrated that scutellarin showed strong hypolipidaemic, antioxidative, and liver protective activity which could be attributed to its regulating activity in the PPARγ/PGC-1α-Nrf2 signaling pathway.
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Affiliation(s)
- Xiaoxue Zhang
- a College of Pharmacy , Dalian Medical University , Dalian , China
| | - Renpeng Ji
- a College of Pharmacy , Dalian Medical University , Dalian , China
| | - Huijun Sun
- a College of Pharmacy , Dalian Medical University , Dalian , China
| | - Jinyong Peng
- a College of Pharmacy , Dalian Medical University , Dalian , China
| | - Xiaodong Ma
- a College of Pharmacy , Dalian Medical University , Dalian , China
| | - ChangYuan Wang
- a College of Pharmacy , Dalian Medical University , Dalian , China
| | - Yufeng Fu
- a College of Pharmacy , Dalian Medical University , Dalian , China
| | - Liuchi Bao
- a College of Pharmacy , Dalian Medical University , Dalian , China
| | - Yue Jin
- a College of Pharmacy , Dalian Medical University , Dalian , China
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Shin JW, Kweon KJ, Kim DK, Kim P, Jeon TD, Maeng S, Sohn NW. Scutellarin Ameliorates Learning and Memory Deficit via Suppressing β-Amyloid Formation and Microglial Activation in Rats with Chronic Cerebral Hypoperfusion. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2018; 46:1203-1223. [PMID: 30149759 DOI: 10.1142/s0192415x18500635] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Chronic cerebral hypoperfusion is considered as a pivotal factor of cognitive impairment that occurs in cerebrovascular diseases. This study investigated the ameliorating effect of scutellarin (SCT) on spatial cognitive impairment and β-amyloid (Aβ) formation in rats with chronic cerebral hypoperfusion induced by permanent bilateral common carotid artery occlusion (pBCAO). SCT is a flavonoid in medicinal herb of Erigeron breviscapus (vant.) Hand. Mazz. known to have neuroprotective, antioxidative and anti-inflammatory effects. However, the beneficial effect and pivotal mechanism of SCT on cognitive impairment are still unclear. SCT was treated orally with two doses (10 or 30 mg/kg) for 4 weeks. Results of Morris water maze test performed on the ninth week after pBCAO revealed that SCT (30 mg/kg)-treated rats had significantly shortened escape latencies in acquisition training trials, significantly prolonged swimming time at the platform and its surrounding zone, significant increase in memory score, significant reduction in the number of target heading, and significant reduction in the time required for the first target heading during the retention trial compared to rats in the sham-control group. SCT significantly inhibited the production of Aβ(1-40) and Aβ(1–42) in brain tissues. However, SCT significantly upregulated the expression levels of amyloid precursor protein and β-site APP-converting enzyme-1 in the hippocampus. In addition, SCT significantly inhibited the activation of Iba1-expressing microglia in brain tissues. The results suggest that SCT can exert ameliorating effect on spatial cognitive impairment caused by chronic cerebral hypoperfusion through suppressing Aβ formation and microglial activation in brain tissues. Therefore, SCT can be used as a beneficial drug for vascular dementia and Alzheimer's disease.
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Affiliation(s)
- Jung-Won Shin
- 1 Department of East-West Medical Science, Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17404, Republic of Korea
| | - Ki-Jung Kweon
- 1 Department of East-West Medical Science, Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17404, Republic of Korea
| | - Dong-Kyu Kim
- 1 Department of East-West Medical Science, Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17404, Republic of Korea
| | - Pyungsoo Kim
- 1 Department of East-West Medical Science, Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17404, Republic of Korea
| | - Tae-Dong Jeon
- 1 Department of East-West Medical Science, Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17404, Republic of Korea
| | - Sungho Maeng
- 1 Department of East-West Medical Science, Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17404, Republic of Korea
| | - Nak-Won Sohn
- 1 Department of East-West Medical Science, Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17404, Republic of Korea
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Wang J, Xie Y, Zhao S, Zhang J, Chai Y, Li Y, Liao X. Dengzhanxixin injection for cerebral infarction: A systematic review and meta-analysis of randomized controlled trials. Medicine (Baltimore) 2017; 96:e7674. [PMID: 28796050 PMCID: PMC5556216 DOI: 10.1097/md.0000000000007674] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND No systematic review has been published in English of Dengzhanxixin (DZXX) injection for cerebral infarction. The aim of this systematic review was to assess the effects and safety of DZXX injection for cerebral infarction. METHODS Eight databases were searched from their inception. Randomized controlled trials (RCTs) related to DZXX for cerebral infarction in English or Chinese without restrictions on the publication status were included. Neurological deficit, quality of life, and response rates were analyzed. Adverse events were also investigated. RESULTS Twenty-three randomized controlled trials (RCTs) with 2291 participants were included. Meta-analysis showed that DZXX injection plus routine western therapy was better than routine western therapy alone for reducing neurologic deficit (MD -2.86, 95% CI -3.87 to -1.86), for improving quality of life (MD 9.48, 95% CI 8.34-10.63), and for improving response rates (RR 1.20, 95% CI 1.15-1.25). No serious adverse drug events (ADE) were reported. CONCLUSIONS DZXX injection may have a potential therapeutic effect for cerebral infarction in reducing neurologic deficit, improving life quality and response rates. However, we could not draw any definitive conclusions due to the insufficient evidences. More high-quality trials are needed to provide more strong evidence and to assess the safety of DZXX injection.
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Affiliation(s)
- Jia Wang
- Institute of Basic Research in Clinical Medicine
- Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences
| | - Yanming Xie
- Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences
| | | | - Jiangsong Zhang
- Zhejiang University of Traditional Chinese Medicine, Zhejiang, China
| | - Yan Chai
- Department of Epidemiology, University of California-Los Angeles, CA
| | - Yuanyuan Li
- Institute of Basic Research in Clinical Medicine
| | - Xing Liao
- Institute of Basic Research in Clinical Medicine
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Li Q, Chen Y, Zhang X, Zuo S, Ge H, Chen Y, Liu X, Zhang JH, Ruan H, Feng H. Scutellarin attenuates vasospasm through the Erk5-KLF2-eNOS pathway after subarachnoid hemorrhage in rats. J Clin Neurosci 2016; 34:264-270. [PMID: 27742373 DOI: 10.1016/j.jocn.2016.09.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 05/19/2016] [Accepted: 09/06/2016] [Indexed: 12/29/2022]
Abstract
Angiographic vasospasm, especially in the early phases (<72h) of subarachnoid hemorrhage (SAH), is one of the major complications after an aneurysm rupture and is often the cause of delayed neurological deterioration. Scutellarin (SCU), a flavonoid extracted from the traditional Chinese herb Erigeron breviscapus, has been widely accepted as an antioxidant, but the effect of SCU on vasospasm after SAH remains elusive. Endovascular perforation was conducted to induce SAH in Sprague-Dawley rats. Then, the underlying mechanism of the anti-vasospasm effect of SCU was investigated using a modified Garcia scale, India ink angiography, cross-sectional area analysis, immunohistochemistry staining and western blot. SCU (50μM, 100mg/kg) alleviated angiographic vasospasm and improved neurological function 48h after SAH and enhanced the expression of endothelial nitric oxide synthase (eNOS) at the intima of cerebral arteries. In addition, SCU upregulated the expression of phosphorylated extracellular-regulated kinase 5 (p-Erk5) and Kruppel-like factor 2 (KLF2) at 48h after SAH. However, the effects of SCU were reversed by the Erk5 inhibitor XMD8-92. Our results indicate that SCU could attenuate vasospasm and neurological deficits via modulating the Erk5-KLF2-eNOS pathway after SAH, which may provide an experimental basis for the clinical use of SCU treatment in SAH patients.
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Affiliation(s)
- Qiang Li
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, 29 Gaotanyan Street, Shapingba District, Chongqing 400038, China; Department of Neurobiology, College of Basic Medical Sciences, Third Military Medical University, Chongqing, China
| | - Yujie Chen
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, 29 Gaotanyan Street, Shapingba District, Chongqing 400038, China
| | - Xuan Zhang
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, 29 Gaotanyan Street, Shapingba District, Chongqing 400038, China
| | - Shilun Zuo
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, 29 Gaotanyan Street, Shapingba District, Chongqing 400038, China
| | - Hongfei Ge
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, 29 Gaotanyan Street, Shapingba District, Chongqing 400038, China
| | - Yanyan Chen
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, 29 Gaotanyan Street, Shapingba District, Chongqing 400038, China
| | - Xin Liu
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, 29 Gaotanyan Street, Shapingba District, Chongqing 400038, China
| | - John H Zhang
- Department of Anesthesiology, Neurosurgery and Physiology, Loma Linda University, Loma Linda, CA, USA
| | - Huaizhen Ruan
- Department of Neurobiology, College of Basic Medical Sciences, Third Military Medical University, Chongqing, China.
| | - Hua Feng
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, 29 Gaotanyan Street, Shapingba District, Chongqing 400038, China.
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Zhao S, Sun Y, Li X, Wang J, Yan L, Zhang Z, Wang D, Dai J, He J, Wang S. Scutellarin inhibits RANKL-mediated osteoclastogenesis and titanium particle-induced osteolysis via suppression of NF-κB and MAPK signaling pathway. Int Immunopharmacol 2016; 40:458-465. [PMID: 27728897 DOI: 10.1016/j.intimp.2016.09.031] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 08/24/2016] [Accepted: 09/30/2016] [Indexed: 11/19/2022]
Abstract
Aseptic prosthetic loosening is a major complication after hip joint replacement. Wear particle-induced periprosthetic osteolysis plays a key role in aseptic prosthetic loosening. Attempting to modulate receptor activator of nuclear factor-κB (RANKL) mediated signaling pathways is a promising strategy to prevent aseptic prosthetic loosening. In the present study, we determined the effect of scutellarin (SCU) on titanium (Ti) particle-induced osteolysis in a mouse calvarial model and RANKL-mediated osteoclastogenesis. We determined that SCU, the major effective constituent of breviscapine isolated from a Chinese herb, has potential effects on preventing Ti particle-caused osteolysis in calvarial model of mouse. In vitro, SCU could suppress RANKL-mediated osteoclastogenesis, the function of osteoclast bone resorption, and the expression levels of osteoclast-specific genes (tartrate-resistant acid phosphatase (TRAP), cathepsin K, c-Fos, NFATc1). Further investigation indicated that SCU could inhibit RANKL-mediated MAPK and NF-κB signaling pathway, including JNK1/2, p38, ERK1/2, and IκBα phosphorylation. Taken together, these results indicate that SCU could inhibit osteoclastogenesis and prevent Ti particle-induced osteolysis by suppressing RANKL-mediated MAPK and NF-κB signaling pathway. These results suggest that SCU is a promising therapeutic agent for preventing wear particle-induced periprosthetic osteolysis.
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Affiliation(s)
- Shuai Zhao
- Department of Orthopedics, Xiangya Second Hospital, Central South University, Changsha, Hunan 410012, China.
| | - Yu Sun
- Department of Orthopedics, Clinical medical college of Yangzhou University, Nantong West Road 98, Yangzhou, Jiangsu 225001, China; Orthopedics Institute, Subei People's Hospital of Jiangsu Province, Yangzhou, Jiangsu 225001, China
| | - Xiaolei Li
- Department of Orthopedics, Xiangya Second Hospital, Central South University, Changsha, Hunan 410012, China; Department of Orthopedics, Clinical medical college of Yangzhou University, Nantong West Road 98, Yangzhou, Jiangsu 225001, China; Orthopedics Institute, Subei People's Hospital of Jiangsu Province, Yangzhou, Jiangsu 225001, China
| | - Jingcheng Wang
- Department of Orthopedics, Xiangya Second Hospital, Central South University, Changsha, Hunan 410012, China; Department of Orthopedics, Clinical medical college of Yangzhou University, Nantong West Road 98, Yangzhou, Jiangsu 225001, China; Orthopedics Institute, Subei People's Hospital of Jiangsu Province, Yangzhou, Jiangsu 225001, China.
| | - Lianqi Yan
- Department of Orthopedics, Xiangya Second Hospital, Central South University, Changsha, Hunan 410012, China; Department of Orthopedics, Clinical medical college of Yangzhou University, Nantong West Road 98, Yangzhou, Jiangsu 225001, China; Orthopedics Institute, Subei People's Hospital of Jiangsu Province, Yangzhou, Jiangsu 225001, China.
| | - Zhen Zhang
- Department of Orthopedics, Clinical medical college of Yangzhou University, Nantong West Road 98, Yangzhou, Jiangsu 225001, China; Orthopedics Institute, Subei People's Hospital of Jiangsu Province, Yangzhou, Jiangsu 225001, China
| | - Daxin Wang
- Department of Orthopedics, Xiangya Second Hospital, Central South University, Changsha, Hunan 410012, China; Department of Orthopedics, Clinical medical college of Yangzhou University, Nantong West Road 98, Yangzhou, Jiangsu 225001, China
| | - Jihang Dai
- Department of Orthopedics, Clinical medical college of Yangzhou University, Nantong West Road 98, Yangzhou, Jiangsu 225001, China; Orthopedics Institute, Subei People's Hospital of Jiangsu Province, Yangzhou, Jiangsu 225001, China
| | - Jun He
- Department of Orthopedics, Clinical medical college of Yangzhou University, Nantong West Road 98, Yangzhou, Jiangsu 225001, China; Orthopedics Institute, Subei People's Hospital of Jiangsu Province, Yangzhou, Jiangsu 225001, China
| | - Shuguang Wang
- Department of Orthopedics, Clinical medical college of Yangzhou University, Nantong West Road 98, Yangzhou, Jiangsu 225001, China; Orthopedics Institute, Subei People's Hospital of Jiangsu Province, Yangzhou, Jiangsu 225001, China
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Scutellarin protects cardiomyocyte ischemia–reperfusion injury by reducing apoptosis and oxidative stress. Life Sci 2016; 157:200-207. [DOI: 10.1016/j.lfs.2016.01.018] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 12/10/2015] [Accepted: 01/12/2016] [Indexed: 12/20/2022]
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Scutellarin as a Potential Therapeutic Agent for Microglia-Mediated Neuroinflammation in Cerebral Ischemia. Neuromolecular Med 2016; 18:264-73. [PMID: 27103430 DOI: 10.1007/s12017-016-8394-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Accepted: 04/04/2016] [Indexed: 12/26/2022]
Abstract
The cerebral ischemia is one of the most common diseases in the central nervous system that causes progressive disability or even death. In this connection, the inflammatory response mediated by the activated microglia is believed to play a central role in this pathogenesis. In the event of brain injury, activated microglia can clear the cellular debris and invading pathogens, release neurotrophic factors, etc., but in chronic activation microglia may cause neuronal death through the release of excessive inflammatory mediators. Therefore, suppression of microglial over-reaction and microglia-mediated neuroinflammation is deemed to be a therapeutic strategy of choice for cerebral ischemic damage. In the search for potential herbal extracts that are endowed with the property in suppressing the microglial activation and amelioration of neuroinflammation, attention has recently been drawn to scutellarin, a Chinese herbal extract. Here, we review the roles of activated microglia and the effects of scutellarin on activated microglia in pathological conditions especially in ischemic stroke. We have further extended the investigation with special reference to the effects of scutellarin on Notch signaling, one of the several signaling pathways known to be involved in microglial activation. Furthermore, in light of our recent experimental evidence that activated microglia can regulate astrogliosis, an interglial "cross-talk" that was amplified by scutellarin, it is suggested that in designing of a more effective therapeutic strategy for clinical management of cerebral ischemia both glial types should be considered collectively.
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Chen YJ, Wang L, Zhou GY, Yu XL, Zhang YH, Hu N, Li QQ, Chen C, Qing C, Liu YT, Yang WM. Scutellarin attenuates endothelium-dependent aasodilation impairment induced by hypoxia reoxygenation, through regulating the PKG signaling pathway in rat coronary artery. Chin J Nat Med 2016; 13:264-73. [PMID: 25908623 DOI: 10.1016/s1875-5364(15)30013-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Indexed: 11/19/2022]
Abstract
Scutellarin (SCU), a flavonoid from a traditional Chinese medicinal plant. Our previous study has demonstrated that SCU relaxes mouse aortic arteries mainly in an endothelium-depend-ent manner. In the present study, we investigated the vasoprotective effects of SCU against HR-induced endothelial dysfunction (ED) in isolated rat CA and the possible mechanisms involving cyclic guanosine monophosphate (cGMP) dependent protein kinase (PKG). The isolated endothelium-intact and endothelium-denuded rat CA rings were treated with HR injury. Evaluation of endothelium-dependent and -independent vasodilation relaxation of the CA rings were performed using wire myography and the protein expressions were assayed by Western blotting. SCU (10-1 000 μmol·L(-1)) could relax the endothelium-intact CA rings but not endothelium-denuded ones. In the intact CA rings, the PKG inhibitor, Rp-8-Br-cGMPS (PKGI-rp, 4 μmol·L(-1)), significantly blocked SCU (10-1 000 μmol·L(-1))-induced relaxation. The NO synthase (NOS) inhibitor, NO-nitro-L-arginine methylester (L-NAME, 100 μmol·L(-1)), did not significantly change the effects of SCU (10-1 000 μmol·L(-1)). HR treatment significantly impaired ACh-induced relaxation, which was reversed by pre-incubation with SCU (500 μmol·L(-1)), while HR treatment did not altered NTG-induced vasodilation. PKGI-rp (4 μmol·L(-1)) blocked the protective effects of SCU in HR-treated CA rings. Additionally, HR treatment reduced phosphorylated vasodilator-stimulated phosphoprotein (p-VASP, phosphorylated product of PKG), which was reversed by SCU pre-incubation, suggesting that SCU activated PKG phosphorylation against HR injury. SCU induces CA vasodilation in an endothelium-dependent manner to and repairs HR-induced impairment via activation of PKG signaling pathway.
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Affiliation(s)
- Ya-Juan Chen
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Lei Wang
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Guang-Yu Zhou
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Xian-Lun Yu
- Zhaotong Institute of Tianma, Zhaotong 657000, China
| | - Yong-Hui Zhang
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Na Hu
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Qing-Qing Li
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Chen Chen
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Chen Qing
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Ying-Ting Liu
- Department of Periodontology and Implant Dentistry, The First People's Hospital of Yun-Nan Province, Kunhua Hospital Affiliated to Kunming University of Science and Technology, Kunming 650032, China.
| | - Wei-Min Yang
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China.
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Wang W, Ma X, Han J, Zhou M, Ren H, Pan Q, Zheng C, Zheng Q. Neuroprotective Effect of Scutellarin on Ischemic Cerebral Injury by Down-Regulating the Expression of Angiotensin-Converting Enzyme and AT1 Receptor. PLoS One 2016; 11:e0146197. [PMID: 26730961 PMCID: PMC4711585 DOI: 10.1371/journal.pone.0146197] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2015] [Accepted: 12/14/2015] [Indexed: 01/08/2023] Open
Abstract
Background and Purpose Previous studies have demonstrated that angiotensin-converting enzyme (ACE) is involved in brain ischemic injury. In the present study, we investigated whether Scutellarin (Scu) exerts neuroprotective effects by down-regulating the Expression of Angiotensin-Converting Enzyme and AT1 receptor in a rat model of permanent focal cerebral ischemia. Methods Adult Sprague–Dawley rats were administrated with different dosages of Scu by oral gavage for 7 days and underwent permanent middle cerebral artery occlusion (pMCAO). Blood pressure was measured 7 days after Scu administration and 24 h after pMCAO surgery by using a noninvasive tail cuff method. Cerebral blood flow (CBF) was determined by Laser Doppler perfusion monitor and the neuronal dysfunction was evaluated by analysis of neurological deficits before being sacrificed at 24 h after pMCAO. Histopathological change, cell apoptosis and infarct area were respectively determined by hematoxylin–eosin staining, terminal deoxynucleotidyl transfer-mediated dUTP nick end labeling (TUNEL) analysis and 2,3,5-triphenyltetrazolium chloride staining. Tissue angiotensin II (Ang II) and ACE activity were detected by enzyme-linked immunosorbent assays. The expression levels of ACE, Ang II type 1 receptor (AT1R), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and interleukin-1β (IL-1β) were measured by Western blot and real-time PCR. ACE inhibitory activity of Scu in vitro was detected by the photometric determination. Results Scu treatment dose-dependently decreased neurological deficit score, infarct area, cell apoptosis and morphological changes induced by pMCAO, which were associated with reductions of ACE and AT1R expression and the levels of Ang II, TNF-α, IL-6, and IL-1β in ischemic brains. Scu has a potent ACE inhibiting activity. Conclusion Scu protects brain from acute ischemic injury probably through its inhibitory effect on the ACE/Ang II/AT1 axis, CBF preservation and proinflammation inhibition.
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Affiliation(s)
- Wenjuan Wang
- Pharmacy School, Shihezi University, Shihezi, China
- Department of Pharmacy, the First Division Hospital of Xinjiang Production and Construction Corps, Aksu, Xinjiang, China
| | - Xiaotang Ma
- Institute of Neurological Disease, Zhanjiang Medical College, Zhanjiang, Guangdong, China
| | - Jichun Han
- Pharmacy School, Shihezi University, Shihezi, China
| | | | - Huanhuan Ren
- Pharmacy School, Shihezi University, Shihezi, China
| | - Qunwen Pan
- Institute of Neurological Disease, Zhanjiang Medical College, Zhanjiang, Guangdong, China
| | - Chunli Zheng
- College of Life Sciences, Northwest A&F University, Yangling, Shanxi, China
| | - Qiusheng Zheng
- Pharmacy School, Shihezi University, Shihezi, China
- Binzhou Medical University, Yantai, China
- * E-mail:
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Scutellarin Reduces Endothelium Dysfunction through the PKG-I Pathway. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:430271. [PMID: 26557858 PMCID: PMC4629023 DOI: 10.1155/2015/430271] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 07/25/2015] [Accepted: 08/04/2015] [Indexed: 11/18/2022]
Abstract
Purpose. In this report, we investigated the protective mechanism of scutellarin (SCU) in vitro and in vivo which could be involved in endothelial cGMP-dependent protein kinase (PKG), vasodilator stimulated phosphoprotein (VASP) pathway, and vascular endothelium dysfunction (EtD). Method. Human brain microvascular endothelial cells (HBMECs) with hypoxia reoxygenation (HR) treatment and rats with cerebral ischemia reperfusion (CIR) treatment were applied. Protein and mRNA expression of PKG, VASP, and p-VASP were evaluated by Western blot and RT-PCR methods. Vascular EtD was assessed by using wire myography to determine endothelium-dependent vasorelaxation in isolated rat basilar artery (BA). Result. In cultured HBMECs, SCU (0.1, 1, and 10 μM) increased cell viability, mRNA, protein level, and phosphorylative activity of PKG and VASP against HR injury. In HR model of BA, SCU increased protein level of P-VASP. In rat CIR model, wire myography demonstrated that SCU (45 and 90 mg/kg, i.v.) significantly reduced ischemic size by partially restoring the endothelium dependent vasodilation of BA; PKG inhibitor Rp-8-Br-cGMPS (50 μg/kg, i.v.) reversed this protection of SCU in CIR rats. Conclusion. SCU protects against cerebral vascular EtD through endothelial PKG pathway activation.
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Scutellarin's Cardiovascular Endothelium Protective Mechanism: Important Role of PKG-Iα. PLoS One 2015; 10:e0139570. [PMID: 26440524 PMCID: PMC4594915 DOI: 10.1371/journal.pone.0139570] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 09/15/2015] [Indexed: 11/21/2022] Open
Abstract
Scutellarin (SCU), a flavonoid glycoside compound, has been successfully used in clinic for treatment of ischemic diseases in China. In this report, we checked the effects of SCU on endothelium dysfunction (ED) of coronary artery (CA) against myocardial ischemia reperfusion (MIR) injury in vivo. The involvement of PKG-Iα was further studied using cultured endothelial cells subjected to hypoxia reoxygenation (HR) injury in vitro. In rat MIR model, SCU (45 and 90 mg/kg, iv) significantly reduced ischemic size and restored the endothelium-dependent vasodilation of isolated CA rings. PKG inhibitor Rp-8-Br-cGMP (50 μg/kg, iv) could ameliorate the protective effects of SCU. Increase in phosphorylation of vasodilator-stimulated phosphoprotein (VASP), a main substrate of PKG, at Ser 239 was observed in both heart tissue and serum of SCU-treated animals. In cultured human cardiac microvascular endothelial cells (HCMECs), SCU (1 and 10 μM) dose-dependently protected cell viability and increased the mRNA and protein level of PKG-Iα against HR injury. The activity of PKG was also increased by SCU treatment. The activation of PKG–1α was then studied using targeted proteomic analysis (MRM-MS) checking the phosphorylation state of the autophosphorylation domain (aa42-94). Significant decrease in phosphorylation of PKG-Iα at Ser50, Ser72, Ser89 was induced by HR injury while SCU treatment significantly increased the phosphorylation of PKG-Iα, not only at Ser50, Ser72 and Ser89, but also at Ser44 and Thr58 (two novel phosphorylation domains). Our results demonstrate PKG-Iα might play an important role in the protective effects of SCU on ED against MIR injury.
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Yuan Y, Rangarajan P, Kan EM, Wu Y, Wu C, Ling EA. Scutellarin regulates the Notch pathway and affects the migration and morphological transformation of activated microglia in experimentally induced cerebral ischemia in rats and in activated BV-2 microglia. J Neuroinflammation 2015; 12:11. [PMID: 25600517 PMCID: PMC4316603 DOI: 10.1186/s12974-014-0226-z] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 12/19/2014] [Indexed: 01/06/2023] Open
Abstract
Background Activated microglial cells release an excess of inflammatory mediators after an ischemic stroke. We reported previously that scutellarin effectively suppressed the inflammatory response induced by activated microglia in rats subjected to middle cerebral artery occlusion (MCAO); however, the mechanism via which scutellarin exerts its effects on microglial activation has not been explored. This study aimed to elucidate if scutellarin can regulate the Notch pathway that is linked to microglia activation in MCAO rat, and in lipopolysaccharide (LPS)-induced BV-2 microglia. Along with this, we also investigated some characteristic behavioral responses of activated microglia. Methods Expression of various members of the Notch pathway, including Notch-1, intracellular Notch receptor domain (NICD), recombining binding protein suppressor of hairless (RBP-JK) and transcription factor hairy and enhancer of split-1 (Hes-1) in activated microglia was assessed by immunofluorescence staining and western blot after experimental MCAO and in vitro LPS activation. The effect of scutellarin on migration of microglia was determined by the transwell chamber assay as well as expression of monocyte chemoattractant protein-1 (MCP-1). The morphological change of microglia induced by scutellarin was detected by F-actin staining and electron microscopy. Results Scutellarin markedly attenuated the expression of NF-κB, Notch-1, NICD, RBP-JK and Hes-1 both in vivo and in activated microglia. It decreased the expression of MCP-1 and microglial migration, but increased the ability of microglia adhesion. Scutellarin also altered the phenotype of microglia by causing rearrangement or reorganization of its cytoskeleton. Conclusions The results suggest that scutellarin regulates the activation of microglia via the Notch pathway and concurrently induces morphological and functional changes in activated microglia. Electronic supplementary material The online version of this article (doi:10.1186/s12974-014-0226-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yun Yuan
- Department of Anatomy and Histology/Embryology, Faculty of Basic Medical Sciences, Kunming Medical University, 1168 West Chunrong Road, Kunming, 650500, PR China.
| | - Parakalan Rangarajan
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, 4 Medical Drive, MD10, Singapore, 117597, Singapore.
| | - Enci Mary Kan
- Defense Medical and Environmental Research Institute, DSO National Laboratories, 27 Medical Drive, Singapore, 117510, Singapore.
| | - Yajun Wu
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, 4 Medical Drive, MD10, Singapore, 117597, Singapore.
| | - Chunyun Wu
- Department of Anatomy and Histology/Embryology, Faculty of Basic Medical Sciences, Kunming Medical University, 1168 West Chunrong Road, Kunming, 650500, PR China.
| | - Eng-Ang Ling
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, 4 Medical Drive, MD10, Singapore, 117597, Singapore.
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Sun K, Fan J, Han J. Ameliorating effects of traditional Chinese medicine preparation, Chinese materia medica and active compounds on ischemia/reperfusion-induced cerebral microcirculatory disturbances and neuron damage. Acta Pharm Sin B 2015; 5:8-24. [PMID: 26579420 PMCID: PMC4629119 DOI: 10.1016/j.apsb.2014.11.002] [Citation(s) in RCA: 154] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Revised: 10/22/2014] [Accepted: 10/28/2014] [Indexed: 01/22/2023] Open
Abstract
Ischemic stroke and ischemia/reperfusion (I/R) injury induced by thrombolytic therapy are conditions with high mortality and serious long-term physical and cognitive disabilities. They have a major impact on global public health. These disorders are associated with multiple insults to the cerebral microcirculation, including reactive oxygen species (ROS) overproduction, leukocyte adhesion and infiltration, brain blood barrier (BBB) disruption, and capillary hypoperfusion, ultimately resulting in tissue edema, hemorrhage, brain injury and delayed neuron damage. Traditional Chinese medicine (TCM) has been used in China, Korea, Japan and other Asian countries for treatment of a wide range of diseases. In China, the usage of compound TCM preparation to treat cerebrovascular diseases dates back to the Han Dynasty. Even thousands of years earlier, the medical formulary recorded many classical prescriptions for treating cerebral I/R-related diseases. This review summarizes current information and underlying mechanisms regarding the ameliorating effects of compound TCM preparation, Chinese materia medica, and active components on I/R-induced cerebral microcirculatory disturbances, brain injury and neuron damage.
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Key Words
- 8-OHdG, 8-hydroxydeoxyguanosine
- AIF, apoptosis inducing factor
- AMPA, α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid
- AP-1, activator protein-1
- Antioxidant
- Asp, aspartate
- BBB, brain blood barrier
- BMEC, brain microvascular endothelial cell
- BNDF, brain-derived neurotrophic factor
- Brain blood barrier
- CAT, catalase
- CBF, cerebral blood flow
- COX-2, cyclooxygenase-2
- Cav-1, caveolin-1
- DHR, dihydrorhodamine 123
- DPPH, 1,1-diphenyl-2-picrylhydrazyl radical 2,2-diphenyl-1-(2,4,6-trinitrophenyl) hydrazyl
- ERK, extracellular signal-regulated kinase
- GABA, γ-aminobutyric acid
- GRK2, G protein-coupled receptor kinase 2
- GSH, glutathione
- GSH-Px, glutathione peroxidase
- GSSH, glutathione disulfide
- Glu, glutamate
- Gly, glysine
- HE, hematoxylin and eosin
- HIF, hypoxia-inducible factor
- HPLC, high performance liquid chromatography
- Hyperpermeability
- I-κBα, Inhibitory κBα
- I/R, ischemia-reperfusion
- ICAM-1, intercellular adhesion molecule-1
- IL-10, interleukin-10
- IL-1β, interleukin-1β
- IL-8, interleukin-8
- Ischemia/reperfusion
- JAM-1, junctional adhesion molecule-1
- JNK, Jun N-terminal kinase
- LDH, lactate dehydrogenase
- Leukocyte adhesion
- MAPK, mitogen activated protein kinase
- MCAO, middle cerebral artery occlusion
- MDA, malondialdehyde
- MMPs, matrix metalloproteinases
- MPO, myeloperoxidase
- MRI, magnetic resonance imaging
- NADPH, nicotinamide adenine dinucleotide phosphate
- NF-κB, nuclear factor κ-B
- NGF, nerve growth factor
- NMDA, N-methyl-d-aspartic acid
- NO, nitric oxide
- NSC, neural stem cells
- Neuron
- OGD, oxygen-glucose deprivation
- PARP, poly-ADP-ribose polymerase
- PMN, polymorphonuclear
- RANTES, regulated upon activation normal T-cell expressed and secreted
- ROS, reactive oxygen species
- SFDA, state food and drug administration
- SOD, superoxide dismutase
- TBARS, thiobarbituric acid reactive substance
- TCM, traditional Chinese medicine
- TGF-β1, transforming growth factor β1
- TIMP-1, tissue inhibitor of metalloproteinase-1
- TNF-α, tissue necrosis factor-α
- TTC, 2,3,5-triphenyltetrazolium chloride
- TUNEL, terminal-deoxynucleoitidyl transferase mediated nick end labeling
- Tuj-1, class III β-tublin
- VCAM-1, vascular adhesion molecule-1
- VEGF, vascular endothelial growth factor
- ZO-1, zonula occludens-1
- bFGF, basic fibroblast growth factor
- cAMP, cyclic adenosine monophosphate
- hs-CRP, high-sensitivity C-reactive protein
- iNOS, inducible nitric oxide synthase
- rtPA, recombinant tissue plasminogen activator
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Yuan Y, Zha H, Rangarajan P, Ling EA, Wu C. Anti-inflammatory effects of Edaravone and Scutellarin in activated microglia in experimentally induced ischemia injury in rats and in BV-2 microglia. BMC Neurosci 2014; 15:125. [PMID: 25416145 PMCID: PMC4247200 DOI: 10.1186/s12868-014-0125-3] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Accepted: 11/10/2014] [Indexed: 01/13/2023] Open
Abstract
Background In response to cerebral ischemia, activated microglia release excessive inflammatory mediators which contribute to neuronal damage. Therefore, inhibition of microglial over-activation could be a therapeutic strategy to alleviate various microglia-mediated neuroinflammation. This study was aimed to elucidate the anti-inflammatory effects of Scutellarin and Edaravone given either singly, or in combination in activated microglia in rats subjected to middle cerebral artery occlusion (MCAO), and in lipopolysaccharide (LPS)-induced BV-2 microglia. Expression of proinflammatory cytokines, including tumor necrosis factor-alpha (TNF-α), interleukin-1 beta (IL-1β), and inducible nitric oxide synthase (iNOS) was assessed by immunofluorescence staining and Western blot. Reactive oxygen species (ROS) and nitric oxide (NO) levels were determined by flow cytometry and fluorescence microscopy, respectively. Results In vivo, both Edaravone and Scutellarin markedly reduced the infarct cerebral tissue area with the latter drug being more effective with the dosage used; furthermore, when used in combination the reduction was more substantial. Remarkably, a greater diminution in distribution of activated microglia was observed with the combined drug treatment which also attenuated the immunoexpression of TNF-α, IL-1β and iNOS to a greater extent as compared to the drugs given separately. In vitro, both drugs suppressed upregulated expression of inflammatory cytokines, iNOS, NO and ROS in LPS-induced BV-2 cells. Furthermore, Edaravone and Scutellarin in combination cumulatively diminished the expression levels of the inflammatory mediators being most pronounced for TNF-α as evidenced by Western blot. Conclusion The results suggest that Edaravone and Scutellarin effectively suppressed the inflammatory responses in activated microglia, with Scutellarin being more efficacious within the dosage range used. Moreover, when both drugs were used in combination, the infarct tissue area was reduced more extensively; also, microglia-mediated inflammatory mediators notably TNF-α expression was decreased cumulatively. Electronic supplementary material The online version of this article (doi:10.1186/s12868-014-0125-3) contains supplementary material, which is available to authorized users.
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Zheng WX, Wang F, Cao XL, Pan HY, Liu XY, Hu XM, Sun YY. Baicalin protects PC-12 cells from oxidative stress induced by hydrogen peroxide via anti-apoptotic effects. Brain Inj 2014; 28:227-34. [PMID: 24456060 DOI: 10.3109/02699052.2013.860469] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
PRIMARY OBJECTIVE To examine the neuroprotection of baicalin, a flavonoid compound derived from the dried root of Scutellaria baicalensis Georgi, on neurons. RESEARCH DESIGN A rat PC12 cell line was used to study the neuroprotection and possible mechanisms of baicalin on H₂O₂-induced neuron damage. METHODS Three anti- and one pro-apoptosis genes in PC12 cells were examined. Cell apoptosis was induced by H₂O₂ and apoptotic rate was obtained by flow cytometry. MTT for cell viability, immunofluorescence microscopy for promoter activity and western blot for gene expression were also employed. RESULTS Data of MTT reduction assay and flow cytometry revealed that viability loss and apoptotic rate were reduced by pre-treatment of PC12 cells with baicalin for 24 hours. Baicalin was also found to increase SOD, GSH-Px activities and to decrease MDA level. Results from Western blot and immunofluorescence microscopy showed baicalin increased the expressions of survivin, Bcl-2 and p-STAT3 and decreased caspase-3 expression which were attenuated by AG-490. CONCLUSIONS The results point to the possibility of the neuroprotective effects of baicalin on neuronal apoptosis induced by oxidative stress and indicate that activation of the JAK/STAT signalling pathway might involve the anti-apoptotic effect of baicalin.
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Affiliation(s)
- Wen-xia Zheng
- Department of Pharmacy, College of Medicine, Wuhan University of Science and Technology , Wuhan, Hubei Province , PR China
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Koon CM, Fong S, Wat E, Wang YP, Wing-Shing Cheung D, Bik-San Lau C, Leung PC, Sun HD, Zhao QS, Fung KP. Mechanisms of the dilator action of the Erigerontis Herba on rat aorta. JOURNAL OF ETHNOPHARMACOLOGY 2014; 155:1561-1567. [PMID: 25102247 DOI: 10.1016/j.jep.2014.07.053] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2014] [Revised: 06/11/2014] [Accepted: 07/25/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Erigerontis Herba is widely used as a traditional Chinese medicine and is commonly used for neuroprotection and vascular protection. AIM OF STUDY In this study, the vasodilator effects of Erigerontis Herba (DZXX) were investigated using rat isolated aorta rings. MATERIAL AND METHOD The involvement of endothelium in the vasorelaxation was studied by comparing response of endothelium-intact and endothelium-denuded aorta rings which precontracted with U46619. The involvement of K(+) channels was studied by pretreatment of the aorta rings with various K(+) channel inhibitors. The involvement of Ca(2+) channel was studied by incubating aorta rings with Ca(2+)-free solution, primed with U46619 prior to elicit contraction by addition of Ca(2+) solution. RESULTS DZXX (0.2-2mg/ml) induced a concentration-dependent relaxation on U44619-precontracted aorta rings with EC50 of 0.354±0.036mg/ml. Removal of endothelium or pretreatment with a BKCa inhibitor iberiotoxin, KIR inhibitor barium chloride or Kv inhibitor 4-aminopyridine produced no effect on the DZXX-induced vasorelaxation. However, pretreatment with a KATP inhibitor glibenclamide or a non-selective K(+) channel inhibitor tetraethylammonium produced significant inhibition on the DZXX-induced vasorelaxation by 29.9% and 21.3%, respectively. Pretreatment with DZXX (0.4, 1.2 and 2mg/ml) produced a concentration-dependent inhibition on Ca(2+)-induced vasoconstriction. CONCLUSIONS These results suggest that the vasodilator effect of DZXX was endothelium-independent, mediated by decreasing the influx of Ca(2+) by calcium channel inhibition and increasing the influx of K(+) by opening of a KATP channel.
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Affiliation(s)
- Chi-Man Koon
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; State Key Laboratory of Phytochemistry and Plant Resources in West China, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Subiyanto Fong
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; State Key Laboratory of Phytochemistry and Plant Resources in West China, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Elaine Wat
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; State Key Laboratory of Phytochemistry and Plant Resources in West China, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Yan-Ping Wang
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; State Key Laboratory of Phytochemistry and Plant Resources in West China, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - David Wing-Shing Cheung
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; State Key Laboratory of Phytochemistry and Plant Resources in West China, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Clara Bik-San Lau
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; State Key Laboratory of Phytochemistry and Plant Resources in West China, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Ping-Chung Leung
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; State Key Laboratory of Phytochemistry and Plant Resources in West China, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Han-Dong Sun
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Qin-Shi Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Kwok-Pui Fung
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; State Key Laboratory of Phytochemistry and Plant Resources in West China, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; The Chinese University of Hong Kong-Zhejiang University Joint Laboratory on Natural Products and Toxicology Research, Shatin, New Territories, Hong Kong.
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Shang YH, Tian JF, Hou M, Xu XY. Progress on the protective effect of compounds from natural medicines on cerebral ischemia. Chin J Nat Med 2014; 11:588-95. [PMID: 24345499 DOI: 10.1016/s1875-5364(13)60068-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2012] [Indexed: 01/23/2023]
Abstract
The treatment of cerebral ischemic disease by natural medicines has a long history, and has accumulated a rich theoretical knowledge and treatment experience. The objective of this review is to critically evaluate the experimental research situation of the protective effect of the individual compounds from natural medicine on cerebral ischemia in the past ten years, emphasizing the major mechanisms underlying cerebral ischemic pathophysiology. Sixteen representative compounds from natural medicines which are often used to treat stroke are discussed. The results indicate that these components possess a protective effect on cerebral ischemia, and that these components have different mechanisms, including inhibiting excitotoxicity by ginkgolide B, antiapoptosis of breviscapine, influencing astrocytic activation and proliferation of tanshinone IIA, influencing free radicals by ginsenoside Rd, impairing blood-brain barrier disruption by baicalin, and the anti-inflammatory activity of tetramethylpyrazine. Moreover, some components have multiple neuroprotective mechanisms. Therefore, the combination of individual compounds from natural medicines, considering the mechanisms of cerebral ischemia, may be beneficial to patients with cerebral ischemia in the future. This approach will provide a direction for the further application and exploitation of new drug development in the treatment of cerebral ischemia.
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Affiliation(s)
- Yuan-Hong Shang
- College of Pharmaceutical Sciences, Southwest University, Chongqing Engineering Research Center for Pharmacodynamics Evaluation, Chongqing 400716, China; College of Medicine, Panzhihua University, Panzhihua 617000, China
| | - Jin-Feng Tian
- College of Medicine, Panzhihua University, Panzhihua 617000, China
| | - Min Hou
- College of Pharmaceutical Sciences, Southwest University, Chongqing Engineering Research Center for Pharmacodynamics Evaluation, Chongqing 400716, China
| | - Xiao-Yu Xu
- College of Pharmaceutical Sciences, Southwest University, Chongqing Engineering Research Center for Pharmacodynamics Evaluation, Chongqing 400716, China.
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Ghosh N, Ghosh R, Bhat ZA, Mandal V, Bachar SC, Nima ND, Sunday OO, Mandal SC. Advances in Herbal Medicine for Treatment of Ischemic Brain Injury. Nat Prod Commun 2014. [DOI: 10.1177/1934578x1400900739] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Ischemic brain injury is one of the leading causes of death worldwide and has attracted a lot of attention in the field of drug discovery. Cerebral ischemia is a complex pathological process involving a series of mechanisms, including generation of free radicals, oxidative stress, disruption of the membrane function, release of neurotransmitters and apoptosis. Thrombolytic therapy is the most effective therapeutic strategy, but the benefits are far from being absolute. Increased attention in the field of drug discovery has been focused on using natural compounds from traditional medicinal herbs for neuroprotection, which appears to be a promising therapeutic option for cerebral ischemia with minimal systemic adverse effects that could limit their long term use. The scenario calls for extensive investigations which can result in the development of lead molecules for neuroprotection in the future. In this context, the present review focuses on possible mechanisms underlying the beneficial effects of herbal drugs in patients with cerebral ischemic injury. Natural compounds have been demonstrated to have neurofunctional regulatory actions with antioxidative, anti-inflammatory, calcium antagonizing and anti-apoptotic activities. Among the several leads obtained from plant sources as potential neuroprotective agents, resveratrol, EGb761, curcumin and epigallocatechin-3-gallate have shown significant therapeutic benefits in cerebral ischemic conditions. However, ligustilide, tanshinone, scutellarin and shikonin are the few lead molecules which are under investigation for treatment of cerebral ischemia.
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Affiliation(s)
- Nilanjan Ghosh
- Dr B.C. Roy College of Pharmacy and Allied Health Sciences, Durgapur, India 713206
| | - Rituparna Ghosh
- Dr B.C. Roy College of Pharmacy and Allied Health Sciences, Durgapur, India 713206
| | - Zulfiqar A Bhat
- Department of Pharmaceutical Sciences, University of Kashmir, Srinagar, India 190006
| | - Vivekananda Mandal
- Institute of Pharmacy, Guru Ghasidas University, Bilaspur, India, 495009
| | - Sitesh C. Bachar
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Dhaka, Bangladesh
| | - Namsa D. Nima
- Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, India 784028
| | - Otimenyin O. Sunday
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, University of Jos, Jos, Plateau State, Nigeria
| | - Subhash C. Mandal
- Pharmacognosy and Phytotherapy Research Laboratory, Division of Pharmacognosy, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India 700032
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Inactivation of jack bean urease by scutellarin: Elucidation of inhibitory efficacy, kinetics and mechanism. Fitoterapia 2013; 91:60-67. [DOI: 10.1016/j.fitote.2013.08.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2013] [Revised: 08/11/2013] [Accepted: 08/16/2013] [Indexed: 11/19/2022]
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Chen X, Shi X, Zhang X, Lei H, Long S, Su H, Pei Z, Huang R. Scutellarin attenuates hypertension-induced expression of brain Toll-like receptor 4/nuclear factor kappa B. Mediators Inflamm 2013; 2013:432623. [PMID: 24223475 PMCID: PMC3800634 DOI: 10.1155/2013/432623] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Accepted: 08/13/2013] [Indexed: 01/24/2023] Open
Abstract
Hypertension is associated with low-grade inflammation, and Toll-like receptor 4 (TLR4) has been shown to be linked to the development and maintenance of hypertension. This study aimed to investigate the effects of scutellarin (administered by oral gavage daily for 2 weeks) on brain TLR4/nuclear factor kappa B-(NF- κ B-) mediated inflammation and blood pressure in renovascular hypertensive (using the 2-kidney, 2-clip method) rats. Immunofluorescence and western immunoblot analyses revealed that hypertension contributed to the activation of TLR4 and NF- κ B, accompanied by significantly enhanced expression of proinflammatory mediators, such as tumor necrosis factor- α (TNF- α ), interleukin-1 β (IL-1 β ), and interleukin-18 (IL-18). Furthermore, expression of the antiapoptotic protein, myeloid cell leukemia-1 (Mcl1), was decreased, and the pro-apoptotic proteins, Bax and cleavedcaspase-3 p17 were increased in combined cerebral cortical/striatal soluble lysates. Scutellarin significantly lowered blood pressure and attenuated the number of activated microglia and macrophages in brains of hypertensive rats. Furthermore, scutellarin significantly reduced the expression of TLR4, NF- κ B p65, TNF- α , IL-1 β , IL-18, Bax and cleaved-caspase-3 p17, and increased the expression of Mcl1. Overall, these results revealed that scutellarin exhibits anti-inflammatory and anti-apoptotic properties and decreases blood pressure in hypertensive rats. Therefore, scutellarin may be a potential therapeutic agent in hypertension-associated diseases.
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Affiliation(s)
- Xingyong Chen
- Department of Neurology, National Key Clinical Department and Key Discipline of Neurology, The First Affiliated Hospital Sun Yat-Sen University, Guangzhou 510080, China
- Department of Neurology, Fujian Provincial Hospital, Fujian Medical University, Fuzhou 350001, China
- Guangdong Key Laboratory for Diagnosis and Treatment of Major Neurological Diseases, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
| | - Xiaogeng Shi
- Department of Neurology, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510120, China
| | - Xu Zhang
- Department of Neurology, Fujian Provincial Hospital, Fujian Medical University, Fuzhou 350001, China
| | - Huixin Lei
- Department of Neurology, Fujian Provincial Hospital, Fujian Medical University, Fuzhou 350001, China
| | - Simei Long
- Department of Neurology, National Key Clinical Department and Key Discipline of Neurology, The First Affiliated Hospital Sun Yat-Sen University, Guangzhou 510080, China
- Guangdong Key Laboratory for Diagnosis and Treatment of Major Neurological Diseases, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
| | - Huanxing Su
- Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa 999078, Macau
| | - Zhong Pei
- Department of Neurology, National Key Clinical Department and Key Discipline of Neurology, The First Affiliated Hospital Sun Yat-Sen University, Guangzhou 510080, China
- Guangdong Key Laboratory for Diagnosis and Treatment of Major Neurological Diseases, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
| | - Ruxun Huang
- Department of Neurology, National Key Clinical Department and Key Discipline of Neurology, The First Affiliated Hospital Sun Yat-Sen University, Guangzhou 510080, China
- Guangdong Key Laboratory for Diagnosis and Treatment of Major Neurological Diseases, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
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