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Tocai Moţoc AC, Kokeric T, Tripon S, Barbu-Tudoran L, Barjaktarevic A, Cupara S, Vicas SI. Sanguisorba minor Scop.: An Overview of Its Phytochemistry and Biological Effects. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12112128. [PMID: 37299107 DOI: 10.3390/plants12112128] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 05/08/2023] [Accepted: 05/25/2023] [Indexed: 06/12/2023]
Abstract
Since ancient times, many plants have been cultivated for their nutritional and medicinal properties. The genus Sanguisorba has been used for medicinal purposes for more than 2000 years. These species are distributed in temperate, arctic, or alpine areas in the Northern Hemisphere. Elongated, imparipinnate leaves and densely clustered flower heads are characteristics of the genus Sanguisorba. While Sanguisorba officinalis L. is mainly known for its significant medicinal applications, Sanguisorba minor Scop. is beginning to attract greater interest for its chemical composition and biological effects. Our research collected extensive information on Sanguisorba minor, including its history, taxonomy, habitat, and distribution, as well as its bioactive components and biological activities. In addition to electron microscopy of plant parts (root, stems, and leaves), which is described for the first time in the literature in the case of S. minor, the study also provides information on potential pests or beneficial insects that may be present. Our goal was to provide important information that will serve as a solid foundation for upcoming research on Sanguisorba minor Scop.
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Affiliation(s)
| | - Tijana Kokeric
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, 34000 Kragujevac, Serbia
| | - Septimiu Tripon
- Electron Microscopy Centre, Faculty of Biology and Geology, Babeș-Bolyai University, 44 Republicii St., 400015 Cluj-Napoca, Romania
- Integrated Electron Microscopy Laboratory, National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat St., 400293 Cluj-Napoca, Romania
| | - Lucian Barbu-Tudoran
- Electron Microscopy Centre, Faculty of Biology and Geology, Babeș-Bolyai University, 44 Republicii St., 400015 Cluj-Napoca, Romania
- Integrated Electron Microscopy Laboratory, National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat St., 400293 Cluj-Napoca, Romania
| | - Ana Barjaktarevic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, 34000 Kragujevac, Serbia
| | - Snezana Cupara
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, 34000 Kragujevac, Serbia
| | - Simona Ioana Vicas
- Doctoral School of Biomedical Science, University of Oradea, 410087 Oradea, Romania
- Department of Food Engineering, Faculty of Environmental Protection, University of Oradea, 410048 Oradea, Romania
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Tocai (Moţoc) AC, Ranga F, Teodorescu AG, Pallag A, Vlad AM, Bandici L, Vicas SI. Evaluation of Polyphenolic Composition and Antimicrobial Properties of Sanguisorba officinalis L. and Sanguisorba minor Scop. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11243561. [PMID: 36559673 PMCID: PMC9785539 DOI: 10.3390/plants11243561] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 06/12/2023]
Abstract
The most widespread Sanguisorba species are Sanguisorba officinalis L. and Sanguisorba minor Scop. which are also found in the Romanian flora and classified as medicinal plants because of hemostatic, antibacterial, antitumor, antioxidant and antiviral activities. This study aimed to characterize and compare Sanguisorba species in order to highlight which species is more valuable according to phenolic profile and antimicrobial activity. Based on high-performance liquid chromatography equipped with photodiode array detection and mass spectrometry (electrospray ionization) (HPLC-DAD-MS (ESI+)) analysis, it was evident that the ethanol extract obtained from the leaves of S. minor Scop. contains the highest content of phenolic compounds at 160.96 mg/g p.s., followed by the flower and root extract (131.56 mg/g dw and 121.36 mg/g dw, respectively). While in S. officinalis, the highest amount of phenols was recorded in the root extract (127.06 mg/g), followed by the flower and leaves extract (102.31 mg/g and 81.09 mg/g dw, respectively). Our results show that among the two species, S. minor Scop. is richer in phenolic compounds compared with the S. officinalis L. sample. In addition, the antimicrobial potential of each plant organ of Sanguisorba species was investigated. The ethanol extract of S. minor Scop. leaves exhibited better antibacterial activity against all of the bacteria tested, especially on Staphylococcus aureus, with an inhibition zone of 15.33 ± 0.83 mm. Due to the chemical composition and antimicrobial effect, the Sanguisorba species can be used as food supplements with beneficial effects on human health.
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Affiliation(s)
| | - Floricuta Ranga
- Department of Food Science and Technology, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania
| | - Andrei George Teodorescu
- Department of Medicine, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania
| | - Annamaria Pallag
- Department of Medicine, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania
| | - Andreea Margareta Vlad
- Department of Medicine, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania
| | - Livia Bandici
- Department of Electrical Engineering, University of Oradea, 410087 Oradea, Romania
| | - Simona Ioana Vicas
- Department of Food Engineering, Faculty of Environmental Protection, University of Oradea, 410048 Oradea, Romania
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3
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Hosseini Z, Mansouritorghabeh F, Kakhki FSH, Hosseini M, Rakhshandeh H, Hosseini A, Hasanpour M, Iranshahi M, Rajabian A. Effect of Sanguisorba minor on scopolamine-induced memory loss in rat: involvement of oxidative stress and acetylcholinesterase. Metab Brain Dis 2022; 37:473-488. [PMID: 34982352 DOI: 10.1007/s11011-021-00898-y] [Citation(s) in RCA: 8] [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: 06/06/2021] [Accepted: 12/26/2021] [Indexed: 01/07/2023]
Abstract
Sanguisorba minor (S. minor) has neuroprotective and antioxidant activities. However, its potential benefits in ameliorating learning and memory functions have been explored in no studies up to now. So, in the current study, rats were treated with S. minor hydro-ethanolic extract (50, 100, and 200 mg/kg, intraperitoneal (i.p.)) as well as rivastigmine (0.5 mg/kg, i.p.) for 21 consecutive days. Thereafter, their behavioral performance was assessed using Morris water maze (MWM) and passive avoidance (PA) tasks. Notably, 30 min before conducting the tasks, scopolamine was injected. Finally, the biochemical assessments were done using the brain tissue. The extract characterization was performed by liquid chromatography-mass spectrometry, which confirmed the presence of quercetin, myricetin, kaempferol, catechin, ellagic acid, and gallic acid derivatives. In the MWM test, the extract reduced both escape latency and the travelled distance, compared to the scopolamine group. Moreover, in the PA test, the latency to enter the dark chamber significantly increased by the extract, compared to the scopolamine group (p < 0.05-p < 0.001). Notably, the beneficial effects of S. minor on cognitive performance of the scopolamine-treated rats appeared to be similar or even better than rivastigmine in behavior performance. Similar to rivastigmine, it was observed that the extract attenuated both AChE activity and oxidative injury in the brain as evidenced by the increased antioxidant enzymes and total thiol content; however, it decreased malondialdehyde level (p < 0.05-p < 0.001). In conclusion, the results suggested the effectiveness of S. minor in preventing cognitive dysfunction induced by scopolamine. Accordingly, these protective effects might be produced by the regulation of cholinergic activity and oxidative stress. S. minor could be considered as a potential alternative therapy in cognition disorders.
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Affiliation(s)
- Zeinab Hosseini
- Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | | | - Mahmoud Hosseini
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Division of Neurocognitive Sciences, Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hassan Rakhshandeh
- Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Azar Hosseini
- Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maede Hasanpour
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehrdad Iranshahi
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Arezoo Rajabian
- Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran.
- Department of Internal Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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Zhou P, Li J, Chen Q, Wang L, Yang J, Wu A, Jiang N, Liu Y, Chen J, Zou W, Zeng J, Wu J. A Comprehensive Review of Genus Sanguisorba: Traditional Uses, Chemical Constituents and Medical Applications. Front Pharmacol 2021; 12:750165. [PMID: 34616302 PMCID: PMC8488092 DOI: 10.3389/fphar.2021.750165] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 09/06/2021] [Indexed: 12/12/2022] Open
Abstract
Genus Sanguisorba (family: Rosaceae) comprises nearly 148 species, distributed widely across the temperate and subtropical regions of the Northern Hemisphere. Sanguisorba officinalis L. (S. officinalis) has been used as a hemostatic and scald treating medicine in China for a long time. Numerous studies have demonstrated that plant extracts or monomers from S. officinalis exhibit several pharmacological effects, such as anti-cancer, anti-virus, anti-inflammation, anti-bacteria, neuroprotective and hepatoprotective effects. The other species of genus Sanguisorba are also being studied by researchers worldwide. Sanguisorba minor Scop. (S. minor), as an edible wild plant, is a common ingredient of the Mediterranean diet, and its young shoots and leaves are often mixed with traditional vegetables and consumed as salad. Reports on genus Sanguisorba available in the current literature were collected from Google Scholar, Web of Science, Springer, and PubMed. The Plant List (http://www.theplantlist.org./tpl1.1/search?q=Sanguisorba), International Plant Name Index (https://www.ipni.org/?q=Sanguisorba) and Kew Botanical Garden (http://powo.science.kew.org/) were used for obtaining the scientific names and information on the subspecies and cultivars. In recent years, several in vivo and in vitro experiments have been conducted to reveal the active components and effective monomers of S. officinalis and S. minor. To date, more than 270 compounds have been isolated and identified so far from the species belonging to genus Sanguisorba. Numerous reports on the chemical constituents, pharmacologic effects, and toxicity of genus Sanguisorba are available in the literature. This review provides a comprehensive understanding of the current traditional applications of plants, which are supported by a large number of scientific experiments. Owing to these promising properties, this species is used in the treatment of various diseases, including influenza virus infection, inflammation, Alzheimer’s disease, type 2 diabetes and leukopenia caused by bone marrow suppression. Moreover, the rich contents and biological effects of S. officinalis and S. minor facilitate these applications in dietary supplements and cosmetics. Therefore, the purpose of this review is to summarize the recent advances in the traditional uses, chemical constituents, pharmacological effects and clinical applications of genus Sanguisorba. The present comprehensive review may provide new insights for the future research on genus Sanguisorba.
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Affiliation(s)
- Ping Zhou
- Department of Chinese Materia Medica, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jingyan Li
- School of Pharmacy, Southwest Medical University, Luzhou, China.,Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Qi Chen
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Long Wang
- School of Pharmacy, Southwest Medical University, Luzhou, China.,Education Ministry Key Laboratory of Medical Electrophysiology, Sichuan Key Medical Laboratory of New Drug Discovery and Druggability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Southwest Medical University, Luzhou, China
| | - Jing Yang
- School of Pharmacy, Southwest Medical University, Luzhou, China.,Education Ministry Key Laboratory of Medical Electrophysiology, Sichuan Key Medical Laboratory of New Drug Discovery and Druggability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Southwest Medical University, Luzhou, China
| | - Anguo Wu
- School of Pharmacy, Southwest Medical University, Luzhou, China.,Education Ministry Key Laboratory of Medical Electrophysiology, Sichuan Key Medical Laboratory of New Drug Discovery and Druggability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Southwest Medical University, Luzhou, China
| | - Nan Jiang
- School of Pharmacy, Southwest Medical University, Luzhou, China.,Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Yuanzhi Liu
- School of Pharmacy, Southwest Medical University, Luzhou, China.,Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Jianping Chen
- School of Chinese Medicine, The University of Hong Kong, Hong Kong, Hong Kong, SAR China
| | - Wenjun Zou
- Department of Chinese Materia Medica, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jing Zeng
- School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Jianming Wu
- School of Pharmacy, Southwest Medical University, Luzhou, China.,Education Ministry Key Laboratory of Medical Electrophysiology, Sichuan Key Medical Laboratory of New Drug Discovery and Druggability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Southwest Medical University, Luzhou, China
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Verapamil Inhibits Mitochondria-Induced Reactive Oxygen Species and Dependent Apoptosis Pathways in Cerebral Transient Global Ischemia/Reperfusion. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:5872645. [PMID: 33133347 PMCID: PMC7591985 DOI: 10.1155/2020/5872645] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 07/29/2020] [Indexed: 12/15/2022]
Abstract
The prefrontal cortex is the largest lobe of the brain and is consequently involved in stroke. There is no comprehensive practical pharmacological strategy for ameliorating prefrontal cortex injury induced by cerebral ischemia. Therefore, we studied the neuroprotective properties of verapamil (Ver) on mitochondrial dysfunction and morphological features of apoptosis in transient global ischemia/reperfusion (I/R). Ninety-six Wistar rats were allocated into four groups: control, I/R, I/R+Ver (10 mg/kg twice 1 hour prior to ischemia and 1 hour after reperfusion phase), and I/R+NaCl (vehicle). Animals were sacrificed, and mitochondrial dysfunction parameters (i.e., mitochondrial swelling, mitochondrial membrane potential, ATP concentration, ROS production, and cytochrome c release), antioxidant defense (i.e., superoxide dismutase, malondialdehyde, glutathione peroxidase, catalase, and caspase-3 activation), and morphological features of apoptosis were determined. The results showed that mitochondrial damage, impairment of antioxidant defense system, and apoptosis were significantly more prevalent in the I/R group in comparison with the other groups. Ver decreased mitochondrial damage by reducing oxidative stress, augmented the activity of antioxidant enzymes in the brain, and decreased apoptosis in the I/R neurons. The current study confirmed the role of oxidative stress and mitochondrial dysfunction in I/R progression and indicated the possible antioxidative mechanism of the neuroprotective activities of Ver.
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Lachowicz S, Oszmiański J, Rapak A, Ochmian I. Profile and Content of Phenolic Compounds in Leaves, Flowers, Roots, and Stalks of Sanguisorba officinalis L. Determined with the LC-DAD-ESI-QTOF-MS/MS Analysis and Their In Vitro Antioxidant, Antidiabetic, Antiproliferative Potency. Pharmaceuticals (Basel) 2020; 13:E191. [PMID: 32806688 PMCID: PMC7464974 DOI: 10.3390/ph13080191] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 07/30/2020] [Accepted: 08/03/2020] [Indexed: 12/25/2022] Open
Abstract
The aim of this study was to accurately determine the profile of polyphenols using the highly sensitive LC-DAD-ESI-QTOF-MS/MS technique and to determine in vitro antioxidant activity, the ability of inhibition of α-amylase, α-glucoamylase, and pancreatic lipase activity, and antiproliferative activity in leaves, flowers, roots, and stalks of medical plant Sanguisorba officinalis L. The results of the analysis of the morphological parts indicated the presence of 130 polyphenols, including 62 that were detected in S. officinalis L. for the first time. The prevailing group was tannins, with contents ranging from 66.4% of total polyphenols in the flowers to 43.3% in the stalks. The highest content of polyphenols was identified in the flowers and reached 14,444.97 mg/100 g d.b., while the lowest was noted in the stalks and reached 4606.33 mg/100 g d.b. In turn, the highest values of the antiradical and reducing capacities were determined in the leaves and reached 6.63 and 0.30 mmol TE/g d.b, respectively. In turn, a high ability to inhibit activities of α-amylase and α-glucoamylase was noted in the flowers, while a high ability to inhibit the activity of pancreatic lipase was demonstrated in the leaves of S. officinalis L. In addition, the leaves and the flowers showed the most effective antiproliferative properties in pancreatic ductal adenocarcinoma, colorectal adenocarcinoma, bladder cancer, and T-cell leukemia cells, whereas the weakest activity was noted in the stalks. Thus, the best dietetic material to be used when composing functional foods were the leaves and the flowers of S. officinalis L., while the roots and the stalks were equally valuable plant materials.
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Affiliation(s)
- Sabina Lachowicz
- Department of Fermentation and Cereals Technology, Wrocław University of Environmental and Life Science, 51-630 Wrocław, Poland
| | - Jan Oszmiański
- Department of Fruit, Vegetables and Nutraceutical Technology, Wrocław University of Environmental and Life Science, 51-630 Wroclaw, Poland;
| | - Andrzej Rapak
- Laboratory of Tumor Molecular Immunobiology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wrocław, Poland;
| | - Ireneusz Ochmian
- Department of Horticulture, West Pomeranian University of Technology in Szczecin, 71-434 Szczecin, Poland;
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Wahid M, Ali A, Saqib F, Aleem A, Bibi S, Afzal K, Ali A, Baig A, Khan SA, Bin Asad MHH. Pharmacological exploration of traditional plants for the treatment of neurodegenerative disorders. Phytother Res 2020; 34:3089-3112. [DOI: 10.1002/ptr.6742] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 05/05/2020] [Accepted: 05/07/2020] [Indexed: 12/24/2022]
Affiliation(s)
- Muqeet Wahid
- Faculty of Pharmacy, Department of Pharmacology Bahauddin Zakariya University Multan Pakistan
- Institute of Food Science and Nutrition Bahauddin Zakariya University Multan Pakistan
| | - Anam Ali
- Faculty of Pharmacy, Department of Pharmacology Bahauddin Zakariya University Multan Pakistan
| | - Fatima Saqib
- Faculty of Pharmacy, Department of Pharmacology Bahauddin Zakariya University Multan Pakistan
| | - Ambreen Aleem
- Faculty of Pharmacy, Department of Pharmacology Bahauddin Zakariya University Multan Pakistan
| | - Sumbal Bibi
- Department of Pharmacy COMSATS University Islamabad Abbottabad Pakistan
| | - Khurram Afzal
- Institute of Food Science and Nutrition Bahauddin Zakariya University Multan Pakistan
| | - Atif Ali
- Department of Pharmacy COMSATS University Islamabad Abbottabad Pakistan
| | - Ayesha Baig
- Department of Biotechnology COMSATS University Islamabad Abbottabad Pakistan
| | - Shujaat Ali Khan
- Department of Pharmacy COMSATS University Islamabad Abbottabad Pakistan
| | - Muhammad Hassham Hassan Bin Asad
- Department of Pharmacy COMSATS University Islamabad Abbottabad Pakistan
- Department of Genetics, Institute of Fundamental Medicine and Biology Kazan Federal University Kazan Russia
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Bunse M, Lorenz P, Stintzing FC, Kammerer DR. Characterization of Secondary Metabolites in Flowers of Sanguisorba officinalis L. by HPLC-DAD-MS n and GC/MS. Chem Biodivers 2020; 17:e1900724. [PMID: 32096590 DOI: 10.1002/cbdv.201900724] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 02/24/2020] [Indexed: 12/19/2022]
Abstract
The investigations reported here focus on an in-depth characterization of the secondary metabolite profile of Sanguisorba officinalis flowers. For this purpose, fresh flowers were extracted with MeOH/H2 O and EtOH/H2 O and the resulting crude extracts fractionated using CH2 Cl2 , AcOEt, and BuOH. Individual compounds were characterized by high performance liquid chromatography and gas chromatography coupled with mass spectrometric detection (HPLC-DAD-MSn and GC/MS). MeOH/H2 O extraction and LC/MSn investigations revealed the occurrence of flavonoid glycosides (quercetin, kaempferol), ellagitannin glycosides and four anthocyanins. Among the latter, two components, i. e., cyanidin-malonyl-glucose and cyanidin-galloyl-hexose, have not been reported for S. officinalis so far. Furthermore, phenylethylamine was characterized for the first time in Sanguisorba by pH value dependent extraction with CH2 Cl2 . In addition, AcOEt and BuOH extracts were analyzed by GC/MS both prior to and after acid hydrolysis of secondary metabolites. For this purpose, the extracts were treated with 1 n HCl solution (105 °C, 1 h) and derivatized with BSTFA. Analyses revealed the occurrence of several classes of phenolic compounds, such as gallic acid, hydroxybenzoic acid, hydroxycinnamic acid and ellagic acid derivatives. Additionally, the most prominent ursane-type triterpenoid (ziyu-glycoside I) from Sanguisorba and its corresponding aglycone isomers were detected and assigned based on their characteristic fragmentation patterns.
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Affiliation(s)
- Marek Bunse
- Department of Analytical Development and Research, Section Phytochemical Research, WALA Heilmittel GmbH, Dorfstraße 1, DE-73087, Bad Boll/Eckwälden, Germany.,Department of Plant Systems Biology, Hohenheim University, Garbenstraße 30, DE-70599, Stuttgart, Germany
| | - Peter Lorenz
- Department of Analytical Development and Research, Section Phytochemical Research, WALA Heilmittel GmbH, Dorfstraße 1, DE-73087, Bad Boll/Eckwälden, Germany
| | - Florian C Stintzing
- Department of Analytical Development and Research, Section Phytochemical Research, WALA Heilmittel GmbH, Dorfstraße 1, DE-73087, Bad Boll/Eckwälden, Germany
| | - Dietmar R Kammerer
- Department of Analytical Development and Research, Section Phytochemical Research, WALA Heilmittel GmbH, Dorfstraße 1, DE-73087, Bad Boll/Eckwälden, Germany
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Akbari S, Soodi M, Hajimehdipoor H, Ataei N. Protective effects of Sanguisorba minor and Ferulago angulata total extracts against beta-amyloid induced cytotoxicity and oxidative stress in cultured cerebellar granule neurons. JOURNAL OF HERBMED PHARMACOLOGY 2019. [DOI: 10.15171/jhp.2019.36] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Introduction: Alzheimer’s disease (AD) is an age-dependent neurodegenerative disorder and major cause of mortality in the elderly. AD has a complex pathophysiology and needs new multi-targeted compounds to halt the disease progression through several mechanisms. Medicinal plants contain various compounds with heterogeneous pharmacological effects, therefore are a good source. The aim of this study was to evaluate the protective effect of total extracts of Sanguisorba minor and Ferulago angulata on beta-amyloid (Aβ)-induced toxicity in primary neural cell culture.Methods: Cerebellar granule neurons (CGNs) were cultured according to standard protocols. The cultured neurons were incubated with Aβ alone or in combination with different concentrations of extracts for 24 hours. Cell viability was measured by methylthiazolyldiphenyl-tetrazolium (MTT) assay. In addition acetylcholinesterase (AChE) activity and oxidative stress markers were measured after incubation. Also, the effects of different concentrations of the extracts on AChE activity of the cultured neurons were investigated. For measuring the acute toxicity of the extract, LD50 was estimated by limit test.Results: Both extracts could protect CGNs against Aβ-induced cell death. Aβ-induced oxidative stress and increase of AChE activity were ameliorated by both extracts. S. minor extract dose-dependently reduced AChE activity in cultured CGNs. LD50 of both extracts was estimated above 2000 mg/kg and considered as safe.Conclusion: Both studied extracts protected CGNs against Aβ-induced toxicity by ameliorating oxidative stress mechanism. According to these results, these extracts are recommended for further investigation in AD treatment.
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Affiliation(s)
- Sholeh Akbari
- Department of Toxicology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Maliheh Soodi
- Department of Toxicology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Homa Hajimehdipoor
- Traditional Medicine and Materia Medica Research Center and Department of Traditional Pharmacy, School of Traditional Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nasim Ataei
- Department of Toxicology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
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Kim S, Oh S, Noh HB, Ji S, Lee SH, Koo JM, Choi CW, Jhun HP. In Vitro Antioxidant and Anti- Propionibacterium acnes Activities of Cold Water, Hot Water, and Methanol Extracts, and Their Respective Ethyl Acetate Fractions, from Sanguisorba officinalis L . Roots. Molecules 2018; 23:E3001. [PMID: 30453560 PMCID: PMC6278274 DOI: 10.3390/molecules23113001] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 11/13/2018] [Accepted: 11/14/2018] [Indexed: 11/17/2022] Open
Abstract
Identification of medicinal plants and naturally derived compounds as new natural antioxidant and antibacterial sources for topical acne treatment has long been important. To determine anti-Propionibacterium acnes activity and in vitro antioxidant activities, Sanguisorba officinalis L. root (SOR) was extracted with cold water (CWE), hot water (HWE), and methanol (ME), and each extract was fractionated successively with hexane, ethyl acetate (EA), and butanol to determine whether the activities could be attributed to the total phenolic, flavonoid, terpenoid, and condensed tannin contents. Pearson's correlation coefficients were analyzed between the respective variables. The SOR CWE, HWE, ME, and their respective EA fractions showed anti-P. acnes activity based on the paper disc diffusion method on agar plates, minimum inhibitory concentration (MIC), and minimal bactericidal concentration (MBC). The MIC against P. acnes had a moderate (+) correlation with the total phenolic content, but not with the other measures. The 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging capacity (SC) had a strong (⁻) correlation with the total phenolic content and a moderate (⁻) correlation with the total flavonoid content. The total antioxidant capacity had a strong (+) correlation with the condensed tannin content. Linoleic acid peroxidation inhibition had a strong (⁻) correlation with the total phenolic content. To elucidate the major active phytochemicals in the CWE-EA, HWE-EA, and ME-EA fractions, high performance liquid chromatography-ultraviolet (HPLC-UV) and ultra high performance liquid chromatography coupled with hybrid triple quadrupole time-of-flight mass spectrometry (UHPLC-QTOF-MS) were performed. The HPLC-UV analysis showed the presence of nine compounds in common (arjunic acid and/or euscaphic acid, gallic acid, kaempferol, caffeic acid, ferulic acid, tannic acid, and coumarin, quercetin). The UHPLC-QTOF-MS analysis showed the presence of nine compounds in common (gallic acid; caffeic acid; umbelliferone; arjunic acid, euscaphic acid, and/or tormentic acid; pomolic acid; rosamultic acid; and benzoic acid). When standards of the identified phytochemicals were tested against the same bacterium, quercetin, coumarin, and euscaphic acid showed antibacterial activity against P. acnes.
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Affiliation(s)
- Seongdae Kim
- Department of Biology & Medicinal Science, Pai Chai University, Daejeon 35345, Korea.
| | - Sung Oh
- Department of Biology & Medicinal Science, Pai Chai University, Daejeon 35345, Korea.
| | - Han Byul Noh
- Department of Biology & Medicinal Science, Pai Chai University, Daejeon 35345, Korea.
| | - Seongmi Ji
- Department of Biology & Medicinal Science, Pai Chai University, Daejeon 35345, Korea.
| | - Song Hee Lee
- Department of Biology & Medicinal Science, Pai Chai University, Daejeon 35345, Korea.
| | - Jung Mo Koo
- Department of Biology & Medicinal Science, Pai Chai University, Daejeon 35345, Korea.
| | - Chang Won Choi
- Department of Biology & Medicinal Science, Pai Chai University, Daejeon 35345, Korea.
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11
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Sun J, Li M, Zou F, Bai S, Jiang X, Tian L, Ou S, Jiao R, Bai W. Protection of cyanidin-3-O-glucoside against acrylamide- and glycidamide-induced reproductive toxicity in leydig cells. Food Chem Toxicol 2018; 119:268-274. [DOI: 10.1016/j.fct.2018.03.027] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 03/17/2018] [Accepted: 03/20/2018] [Indexed: 02/03/2023]
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Su XD, Ali I, Arooj M, Koh YS, Yang SY, Kim YH. Chemical constituents from Sanguisorba officinalis L. and their inhibitory effects on LPS-stimulated pro-inflammatory cytokine production in bone marrow-derived dendritic cells. Arch Pharm Res 2018; 41:497-505. [PMID: 29732490 DOI: 10.1007/s12272-018-1035-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 04/25/2018] [Indexed: 11/29/2022]
Abstract
Sanguisorba officinalis L. (Rosaceae) is a perennial herbaceous plant and its roots have been used as an important astringent medicine in Eastern Asian countries over many thousand years. In this phytochemical research, 23 compounds (1-23) were isolated from the roots of S. officinalis. Their chemical structures were identified by extensive spectroscopic methods, including 1D and 2D NMR experiments. The anti-inflammatory effects of extracts and isolated compounds were investigated by measuring the production of pro-inflammatory cytokine IL-12 p40, IL-6 and TNF-α in LPS-stimulated bone marrow-derived dendritic cell. Compounds 1, 3, 7-8, 11-14 revealed promising anti-inflammatory effects. These results suggested that some phenolic compounds and monoterpenoids from S. officinalis could be potential candidates for anti-inflammatory treatments.
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Affiliation(s)
- Xiang Dong Su
- College of Pharmacy, Chungnam National University, Daejon, 34134, Republic of Korea
| | - Irshad Ali
- School of Medicine and Jeju Research Center for Natural Medicine, Jeju National University, Jeju, 63243, Republic of Korea
| | - Madeeha Arooj
- School of Medicine and Jeju Research Center for Natural Medicine, Jeju National University, Jeju, 63243, Republic of Korea
| | - Young Sang Koh
- School of Medicine and Jeju Research Center for Natural Medicine, Jeju National University, Jeju, 63243, Republic of Korea.
| | - Seo Young Yang
- College of Pharmacy, Chungnam National University, Daejon, 34134, Republic of Korea.
| | - Young Ho Kim
- College of Pharmacy, Chungnam National University, Daejon, 34134, Republic of Korea.
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Su XD, Guo RH, Li HX, Ma JY, Kim YR, Kim YH, Yang SY. Anti-allergic inflammatory components from Sanguisorba officinalis L. Bioorg Med Chem Lett 2018; 28:2210-2216. [PMID: 29759725 DOI: 10.1016/j.bmcl.2018.04.033] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 04/07/2018] [Accepted: 04/12/2018] [Indexed: 12/16/2022]
Abstract
Sanguisorba officinalis L. was well known as a traditional herbal medicine to treat inflammation and allergic skin diseases. The aim of this research was to indentify compounds with anti-allergic inflammatory property. Twenty-five compounds (1-25) were isolated from S. officinalis including two new compounds (1 and 8), and their chemical structures were identified by NMR and ESIMS analysis. Consequently, the anti-allergic inflammatory activities of these isolates were investigated by inhibiting β-hexosaminidase and IL-4 production in PMA/A23187-stimulated RBL-2H3 cells. Compounds 6, 8, 13, 17-18 and 25 significantly inhibited β-hexosaminidase release and IL-4 production. Additionally, compounds 8, 17 and 25 effectively suppressed the activation of NF-κB and NF-κB p65 translocation into the nucleus. Anti-inflammatory effects of isolated compounds were evaluated in LPS-stimulated RAW264.7 macrophages, and they showed dramatic inhibition on LPS-induced overproduction of nitric oxide (NO) and TNF-α. Consistently, the protein levels of iNOS and COX-2 were remarkably decreased by the single compounds 8, 13 and 25. These results showed that compounds 8, 13 and 25 from S. officinalis may have a therapeutic potential for allergic inflammatory diseases.
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Affiliation(s)
- Xiang Dong Su
- College of Pharmacy, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Rui Hong Guo
- College of Pharmacy and Research Institute of Drug Development, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Hong Xu Li
- College of Pharmacy, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Jin Yeul Ma
- Korean Medicine Application Center, Korea Institute of Oriental Medicine, Daegue 41062, Republic of Korea
| | - Young Ran Kim
- College of Pharmacy and Research Institute of Drug Development, Chonnam National University, Gwangju 61186, Republic of Korea.
| | - Young Ho Kim
- College of Pharmacy, Chungnam National University, Daejeon 34134, Republic of Korea.
| | - Seo Young Yang
- College of Pharmacy, Chungnam National University, Daejeon 34134, Republic of Korea.
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Jang E, Inn KS, Jang YP, Lee KT, Lee JH. Phytotherapeutic Activities of Sanguisorba officinalis and its Chemical Constituents: A Review. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2018; 46:299-318. [PMID: 29433389 DOI: 10.1142/s0192415x18500155] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Sanguisorba officinalis Linne (S. officinalis, Rosaceae) has been used as a medicinal plant for the treatment of burns, hematemesis, melena, intestinal infections, and dermatitis for a long time in China, Korea, and Japan. The therapeutic efficacy of this herb is intimately associated with its anti-oxidant, anti-inflammatory, antiviral, antifungal, hemostatic, and anticancer activities. Its root contains triterpenoid saponins (zigyuglycoside I: C[Formula: see text]H[Formula: see text]O[Formula: see text] and ziyuglycoside II: C[Formula: see text]H[Formula: see text]O8) and tannins (sanguiin H-6: C[Formula: see text]H[Formula: see text]O[Formula: see text]). It has been recently revealed that these active constituents of S. officinalis possess antiwrinkle properties without cytotoxicity. They also have anticancer effects by inducing apoptosis and cell cycle arrest. Moreover, they can inhibit proliferative tumorigenesis. The underlying mechanism involved in the pharmacological actions of these active constituents is mainly related to p38 MAPK signaling. Although various studies have reported its therapeutic activities and major chemical components, review articles that extensively organize various properties of S. officinalis and its major constituents are still scarce. Taken together, the objective of this paper is to provide overall pharmacological and phytochemical profiles of S. officinalis and its constituents (including ziyuglycoside I, ziyuglycoside II, and sanguiin H-6), and their potential roles in clinical applications for the treatment of inflammatory diseases, bleeding disorders, and cancer.
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Affiliation(s)
- Eungyeong Jang
- * College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea.,∥ Department of Internal Medicine, Kyung Hee University Korean Medicine Hospital, Seoul 02447, Republic of Korea
| | - Kyung-Soo Inn
- † Department of Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Young Pyo Jang
- ‡ Department of Life and Nanopharmaceutical Sciences, College of Pharmacy, Kyung Hee University, Seoul 02447, Republic of Korea.,§ Department of Oriental Pharmaceutical Sciences, College of Pharmacy, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Kyung-Tae Lee
- ‡ Department of Life and Nanopharmaceutical Sciences, College of Pharmacy, Kyung Hee University, Seoul 02447, Republic of Korea.,¶ Department of Pharmaceutical Biochemistry, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jang-Hoon Lee
- * College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
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Li M, Sun J, Zou F, Bai S, Jiang X, Jiao R, Ou S, Zhang H, Su Z, Huang Y, Bai W. Glycidamide inhibits progesterone production through reactive oxygen species-induced apoptosis in R2C Rat Leydig Cells. Food Chem Toxicol 2017; 108:563-570. [DOI: 10.1016/j.fct.2016.09.035] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 08/27/2016] [Accepted: 09/19/2016] [Indexed: 01/13/2023]
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Rojas-Gutierrez E, Muñoz-Arenas G, Treviño S, Espinosa B, Chavez R, Rojas K, Flores G, Díaz A, Guevara J. Alzheimer's disease and metabolic syndrome: A link from oxidative stress and inflammation to neurodegeneration. Synapse 2017. [PMID: 28650104 DOI: 10.1002/syn.21990] [Citation(s) in RCA: 119] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Alzheimer's disease (AD) is the most common cause of dementia and one of the most important causes of morbidity and mortality among the aging population. AD diagnosis is made post-mortem, and the two pathologic hallmarks, particularly evident in the end stages of the illness, are amyloid plaques and neurofibrillary tangles. Currently, there is no curative treatment for AD. Additionally, there is a strong relation between oxidative stress, metabolic syndrome, and AD. The high levels of circulating lipids and glucose imbalances amplify lipid peroxidation that gradually diminishes the antioxidant systems, causing high levels of oxidative metabolism that affects cell structure, leading to neuronal damage. Accumulating evidence suggests that AD is closely related to a dysfunction of both insulin signaling and glucose metabolism in the brain, leading to an insulin-resistant brain state. Four drugs are currently used for this pathology: Three FDA-approved cholinesterase inhibitors and one NMDA receptor antagonist. However, wide varieties of antioxidants are promissory to delay or prevent the symptoms of AD and may help in treating the disease. Therefore, therapeutic efforts to achieve attenuation of oxidative stress could be beneficial in AD treatment, attenuating Aβ-induced neurotoxicity and improve neurological outcomes in AD. The term inflammaging characterizes a widely accepted paradigm that aging is accompanied by a low-grade chronic up-regulation of certain pro-inflammatory responses in the absence of overt infection, and is a highly significant risk factor for both morbidity and mortality in the elderly.
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Affiliation(s)
- Eduardo Rojas-Gutierrez
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Guadalupe Muñoz-Arenas
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Puebla, Pue, Mexico
| | - Samuel Treviño
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Puebla, Pue, Mexico
| | - Blanca Espinosa
- Departamento de Bioquímica, Instituto Nacional de Enfermedades Respiratorias-INER, Ciudad de México, Mexico
| | - Raúl Chavez
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Karla Rojas
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Gonzalo Flores
- Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla, Puebla, Pue, Mexico
| | - Alfonso Díaz
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Puebla, Pue, Mexico
| | - Jorge Guevara
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
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Chen X, Li B, Gao Y, Ji J, Wu Z, Chen S. Saponins from Sanguisorba officinalis Improve Hematopoiesis by Promoting Survival through FAK and Erk1/2 Activation and Modulating Cytokine Production in Bone Marrow. Front Pharmacol 2017; 8:130. [PMID: 28360858 PMCID: PMC5353277 DOI: 10.3389/fphar.2017.00130] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 03/01/2017] [Indexed: 12/31/2022] Open
Abstract
Radix Sanguisorbae, the root of Sanguisorba officinalis L. is used as traditional Chinese medicine. In recent decades, it has been reported to be clinically effective against myelosuppression induced by chemotherapy and/ or radiotherapy. However, the underlining mechanism has not been well studied. In this work, we evaluated the hematopoietic effect of total saponins from S. officinalis L. on myelosuppressive mice induced by cyclophosphamide and by60Co-γ-irradiation and confirmed the therapeutic effect. Then, we found total saponins and their characteristic constituents Ziyuglycoside I and Ziyuglycoside II can inhibit apoptosis of TF-1 cells caused by cytokine deprivation, and promote survival of mouse bone marrow nuclear cells through focal adhesion kinase (FAK) and extracellular signal-regulated kinase 1/2 (Erk1/2) activation in vitro. In addition, they can down-regulate macrophage inflammatory protein 2 (MIP-2), platelet factor 4 (PF4) and P-selectin secretion, which are reported to be suppressive to hematopoiesis, both in vitro and in vivo. These results suggest that promotion of survival through FAK and Erk1/2 activation and inhibition of suppressive cytokines in the bone marrow is likely to be the pharmacological mechanism underlying the hematopoietic effect of saponins from S. officinalis L.
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Affiliation(s)
- Xin Chen
- Chengdu Institute of Biology, Chinese Academy of Sciences (CAS)Sichuan, China; Graduate School, University of Chinese Academy of Sciences (CAS)Beijing, China
| | - Bogang Li
- Chengdu Institute of Biology, Chinese Academy of Sciences (CAS)Sichuan, China; Di Ao Pharmaceutical GroupSichuan, China
| | - Yue Gao
- Institute of Radiation Medicine, Academy of Military Medical Sciences Beijing, China
| | - Jianxin Ji
- Chengdu Institute of Biology, Chinese Academy of Sciences (CAS) Sichuan, China
| | - Zhongliu Wu
- Chengdu Institute of Biology, Chinese Academy of Sciences (CAS) Sichuan, China
| | - Shuang Chen
- Chengdu Institute of Biology, Chinese Academy of Sciences (CAS) Sichuan, China
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Zhao Z, He X, Zhang Q, Wei X, Huang L, Fang JC, Wang X, Zhao M, Bai Y, Zheng X. Traditional Uses, Chemical Constituents and Biological Activities of Plants from the Genus Sanguisorba L. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2017; 45:199-224. [PMID: 28249548 DOI: 10.1142/s0192415x17500136] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Plants from the genus Sanguisorba have been treated as medicinal ingredients for over 2000 years. This paper reviews advances in the botanical, phytochemical and pharmacological studies of the genus. To date, more than 120 chemical constituents have been isolated and identified from these plants, especially from S. officinalis and S. minor. Among these compounds, triterpenoids, phenols and flavonoids are the primary biologically active constituents. Triterpenoids can be used as quality control markers to determine the quality of medicinal materials and their preparations. In vivo and in vitro studies have shown that plants from the genus Sanguisorba exhibit a wide range of pharmacological properties, including hemostatic, antibacterial, antitumor, neuroprotective and hypoglycemic activities. In Chinese medical practice, many drugs (e.g., tablets and powders) that contain S. officinalis roots have been used to treat leukopenia, hemorrhaging and burns. However, there is still a multitude of Sanguisorba species that have garnered little or no attention. Indeed, there are few reports concerning the clinical use and toxic effects of these plants. Further attention should be focused on the study of these species in order to gather information on their respective toxicology data, any relevant quality-control measures, and the clinical value of the crude extracts, active compounds, and bioactive metabolites from Genus Sanguisorba.
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Affiliation(s)
- Zefeng Zhao
- * Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University Xi'an 710069, P. R. China
| | - Xirui He
- * Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University Xi'an 710069, P. R. China.,‡ Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an 710054, P. R. China
| | - Qiang Zhang
- * Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University Xi'an 710069, P. R. China
| | - Xiaoyang Wei
- * Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University Xi'an 710069, P. R. China
| | - Linhong Huang
- ‡ Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an 710054, P. R. China
| | - Jia Cheng Fang
- * Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University Xi'an 710069, P. R. China
| | - Xiaoxiao Wang
- * Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University Xi'an 710069, P. R. China
| | - Meimei Zhao
- * Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University Xi'an 710069, P. R. China
| | - Yajun Bai
- † College of Chemistry and Materials Science, Northwest University Xi'an 710069, P. R. China
| | - Xiaohui Zheng
- * Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University Xi'an 710069, P. R. China
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Liu MP, Liao M, Dai C, Chen JF, Yang CJ, Liu M, Chen ZG, Yao MC. Sanguisorba officinalis L synergistically enhanced 5-fluorouracil cytotoxicity in colorectal cancer cells by promoting a reactive oxygen species-mediated, mitochondria-caspase-dependent apoptotic pathway. Sci Rep 2016; 6:34245. [PMID: 27671231 PMCID: PMC5037464 DOI: 10.1038/srep34245] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 09/09/2016] [Indexed: 12/11/2022] Open
Abstract
Sanguisorba officinalis L. radix is a widely used herb called DiYu (DY) in China and has an extensive range of bioactivities, including anti-cancer, anti-inflammatory, and anti-oxidative activities. However, there is little evidence to support its anti-cancer effects against colorectal cancer (CRC). The first-line chemotherapeutic agent 5-fluorouracil (5-FU) is used to treat CRC, but its efficiency is hampered by acquired drug resistance. This study found that a water extract of DY exerted anti-proliferative effects against two CRC cell lines (HCT-116 and RKO), and it sensitized CRC cells to 5-FU therapy by activating a reactive oxygen species (ROS)-mediated, mitochondria-caspase-dependent apoptotic pathway. Co-treatment of DY and 5-FU significantly elevated ROS levels, up-regulated Bax/Bcl-2 ratio and triggered mitochondrial dysfunction, followed by a release of cytochrome c and up-regulation of proteins such as cleaved-caspase-9/3 and cleaved-PARP. Additionally, the induction of autophagy may be involved in mediating synergism of DY in HCT-116 cells. Gallic acid (GA), catechinic acid (CA) and ellagic acid (EA) were identified as the potential chief constituents responsible for the synergistic effects of DY. In conclusion, co-treatment of DY, specifically GA, CA and EA, with 5-FU may be a potential alternative therapeutic strategy for CRC by enhancing an intrinsic apoptotic pathway.
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Affiliation(s)
- Meng-Ping Liu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Min Liao
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Cong Dai
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Jie-Feng Chen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Chun-Juan Yang
- College of Pharmacy, Harbin Medical University, Harbin 150081, P. R. China
| | - Ming Liu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Zuan-Guang Chen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Mei-Cun Yao
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
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Yang JH, Yoo JM, Cho WK, Ma JY. Anti-inflammatory effects of Sanguisorbae Radix water extract on the suppression of mast cell degranulation and STAT-1/Jak-2 activation in BMMCs and HaCaT keratinocytes. Altern Ther Health Med 2016; 16:347. [PMID: 27599590 PMCID: PMC5011966 DOI: 10.1186/s12906-016-1317-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 08/24/2016] [Indexed: 11/10/2022]
Abstract
Background Sanguisorbae Radix (SR) is a well-known herbal medicine used to treat inflammatory disease and skin burns in Asia. In addition, it is used to treat many types of allergic skin diseases, including urticaria, eczema, and allergic dermatitis. SR has been reported to exhibit anti-wrinkle, anti-oxidant, and anti-contact dermatitis bioactivities. Methods In this study, we investigated the mechanism underlying the anti-inflammatory effects of SR water extract (WSR) using human keratinocyte (HaCaT) cells and BALB/c mouse bone marrow-derived mast cells (BMMCs). Viability assays were used to evaluate non-cytotoxic concentrations of WSR in both BMMCs and HaCaT cells. To investigate the effect of WSR treatment on the degranulation of IgE/Ag-activated BMMCs, we measured the release of β-hexosaminidase (β-HEX). We determined the production of pro-inflammatory chemokines including thymus and activation regulated chemokine (TARC; CCL17), regulated on activation, normal T-cell expressed and secreted (RANTES; CCL5), macrophage-derived chemokine (MDC; CCL22), and interleukin 8 (IL-8; CXCL8) in stimulated human keratinocytes. The ability of WSR to reduce the expression of pro-inflammatory marker proteins was evaluated by Western blotting in HaCaT cells stimulated with tumor necrosis factor (TNF)-α/interferon (IFN)-γ. Result WSR inhibited IgE/Ag-activated mast cell degranulation in BMMCs. Treatment with various concentrations of WSR decreased β-HEX release in a dose-dependent manner with an IC50 of 27.5 μg/mL. In keratinocytes, WSR suppressed TNF-α/IFN-γ-induced chemokine production and pro-inflammatory molecules via a blockade STAT-1, Jak-2, p38, and JNK activation. Conclusions This results demonstrate that WSR inhibits degranulation of IgE/Ag-activated mast cells and inhibits the production of pro-inflammatory chemokines by suppressing the phosphorylation of p38 and JNK in HaCaT cells.
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Gawron-Gzella A, Witkowska-Banaszczak E, Bylka W, Dudek-Makuch M, Odwrot A, Skrodzka N. Chemical Composition, Antioxidant and Antimicrobial Activities of Sanguisorba officinalis L. Extracts. Pharm Chem J 2016; 50:244-249. [PMID: 32214538 PMCID: PMC7089018 DOI: 10.1007/s11094-016-1431-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Indexed: 12/25/2022]
Abstract
Sanquisorba officinalis has been used internally for the treatment of intestinal infections and duodenal ulcers, as well as hemorrhoids, phlebitis and varicose veins and female disorders, and topically to heal wounds, burns, and ulcers. In our study, the antioxidant and antimicrobial activities, as well as quantitative analysis of polyphenols (phenolic acids, flavonoids and total polyphenols) in methanol and aqueous extracts from S. officinalis herbs are presented. A correlation between the antioxidant activity and composition of tested extracts indicates that flavonoids are the major compounds causing scavenging of free radicals. Higher content of flavonoids was found in the methanol extract, while the content of total phenolics was higher in the aqueous extract. Both extracts from S. officinalis herbs showed antioxidant activity and high antimicrobial activity in a wide spectrum of test strains.
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Affiliation(s)
- Anna Gawron-Gzella
- Department of Pharmacognosy, University of Medical Sciences in Poznan, 4 OEiêcickiego Street, 60-781 Poznan, Poland
| | - Ewa Witkowska-Banaszczak
- Department of Pharmacognosy, University of Medical Sciences in Poznan, 4 OEiêcickiego Street, 60-781 Poznan, Poland
| | - Wiesława Bylka
- Department of Pharmacognosy, University of Medical Sciences in Poznan, 4 OEiêcickiego Street, 60-781 Poznan, Poland
| | - Marlena Dudek-Makuch
- Department of Pharmacognosy, University of Medical Sciences in Poznan, 4 OEiêcickiego Street, 60-781 Poznan, Poland
| | - Agnieszka Odwrot
- Department of Pharmacognosy, University of Medical Sciences in Poznan, 4 OEiêcickiego Street, 60-781 Poznan, Poland
| | - Natalia Skrodzka
- Department of Pharmacognosy, University of Medical Sciences in Poznan, 4 OEiêcickiego Street, 60-781 Poznan, Poland
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Tan G, Liu L, He Z, Sun J, Xing W, Sun X. Role of hepcidin and its downstream proteins in early brain injury after experimental subarachnoid hemorrhage in rats. Mol Cell Biochem 2016; 418:31-8. [DOI: 10.1007/s11010-016-2730-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 03/25/2016] [Indexed: 01/16/2023]
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Seo CS, Jeong SJ, Yoo SR, Lee NR, Shin HK. Quantitative Analysis and In vitro Anti-inflammatory Effects of Gallic Acid, Ellagic Acid, and Quercetin from Radix Sanguisorbae. Pharmacogn Mag 2016; 12:104-8. [PMID: 27076745 PMCID: PMC4809163 DOI: 10.4103/0973-1296.177908] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Radix Sanguisorbae has long been used to treat diarrhea, enteritis, duodenal ulcers, and internal hemorrhage. OBJECTIVE We investigated the in vitro anti-inflammatory effects of Radix Sanguisorbae and performed quantitative analyses of three marker components, namely gallic acid, ellagic acid, and quercetin, using high-performance liquid chromatography coupled with a photodiode array detector. MATERIALS AND METHODS The three marker components were separated using a reversed-phase Gemini C18 analytical column maintained at 40°C by the gradient elution with two solvent systems. We examined the biological effects of the three marker compounds, gallic acid, ellagic acid, and quercetin, by determining their anti-inflammatory activities in the murine macrophage cell line RAW 264.7. RESULTS All of the marker compounds exhibited inhibitory effects on prostaglandin E2 production in lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages, with no cytotoxicity. Particularly, ellagic acid significantly inhibited production of the proinflammatory cytokines tumor necrosis factor alpha and interleukin-6 in LPS-treated RAW 264.7 cells. CONCLUSION Our results suggest that ellagic acid is the most potent bioactive phytochemical component of radix Sanguisorbae in the treatment of inflammatory diseases. SUMMARY Established high-performance liquid chromatography method was applied in the quantitative analysis of gallic acid, ellagic acid, and quercetin present in an extract from radix SanguisorbaeAmong the three compounds, the ellagic acid.(7.65.mg/g) is main component in radix SanguisorbaeEllagic acid significantly inhibited production of the proinflammatory cytokines tumor necrosis factor alpha and interleukin-6 in lipopolysaccharide-treated RAW 264.7 cells. Abbreviations used: HPLC: High-performance liquid chromatography, PDA: Photodiode array, TNF-α: Tumor necrosis factor alpha, IL: Interleukin, LPS: Lipopolysaccharide, PGE2: Prostaglandin E2, NSAIDs: Nonsteroidal anti-inflammatory drugs, COX: Cyclooxygenase.
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Affiliation(s)
- Chang-Seob Seo
- K-Herb Research Center, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon 34054, Republic of Korea
| | - Soo-Jin Jeong
- KM Convergence Research Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-g u, Daejeon 34054, Republic of Korea
| | - Sae-Rom Yoo
- K-Herb Research Center, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon 34054, Republic of Korea
| | - Na-Ri Lee
- K-Herb Research Center, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon 34054, Republic of Korea
| | - Hyeun-Kyoo Shin
- K-Herb Research Center, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon 34054, Republic of Korea
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Ethanol Extract of Sanguisorbae Radix Inhibits Mast Cell Degranulation and Suppresses 2,4-Dinitrochlorobenzene-Induced Atopic Dermatitis-Like Skin Lesions. Mediators Inflamm 2016; 2016:2947390. [PMID: 27065570 PMCID: PMC4811174 DOI: 10.1155/2016/2947390] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 02/23/2016] [Indexed: 01/13/2023] Open
Abstract
Sanguisorbae Radix (SR) is well known as herbal medicine named “Zi-Yu” in Korea, which is the dried roots of Sanguisorba officinalis L. (Rosacease). We investigated the underlying mechanism on the inhibition of atopic dermatitis (AD) of an ethanol extract of SR (ESR) using 2,4-dinitrochlorobenzene- (DNCB-) induced AD mice model. Oral administration of ESR significantly suppressed DNCB-induced AD-like symptoms such as scratching behavior, ear thickness, epidermal thickness, and IgE levels. To investigate the effects of ESR treatment on degranulation of IgE/Ag-activated mouse bone marrow-derived mast cells (BMMCs), we measured the release of β-hexosaminidase (β-HEX, degranulation marker). ESR decreased the infiltration of eosinophils and mast cells into the AD skin lesions. Furthermore, ESR significantly inhibited degranulation of IgE/Ag-activated BMMCs. We have demonstrated that ESR decreased AD symptoms in mice and inhibits degranulation of IgE/Ag-activated mast cells. Our study suggests that ESR may serve as a potential therapeutic candidate for the treatment of AD symptoms.
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Chen X, Shang F, Meng Y, Li L, Cui Y, Zhang M, Qi K, Xue T. Ethanol extract of Sanguisorba officinalis L. inhibits biofilm formation of methicillin-resistant Staphylococcus aureus in an ica-dependent manner. J Dairy Sci 2015; 98:8486-91. [PMID: 26454299 DOI: 10.3168/jds.2015-9899] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 08/22/2015] [Indexed: 11/19/2022]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) is an important nosocomial pathogen that shows resistance to many antibiotics and is usually associated with serious infections. Having the ability for biofilm formation increases resistance to antibiotics. Sanguisorba officinalis L. is a perennial plant that is distributed in the northern districts of China and has been used as a traditional Chinese medicine. In this study, the effect of S. officinalis on MRSA strain SA3 isolated from a dairy cow with mastitis was evaluated by testing the growth and biofilm formation ability of MRSA cultured with or without ethanol extracts of S. officinalis. The results showed that the ethanol extract of S. officinalis strongly inhibited the biofilm formation of MRSA. With a confocal laser scanning microscope system, we observed that the biofilm structure of the test group with the addition of S. officinalis appeared looser and had less biomass compared with the control group without S. officinalis. Furthermore, we found that the transcript levels of the icaADBC operon remarkably decreased upon addition of the ethanol extract of S. officinalis, indicating that S. officinalis inhibits biofilm formation of MRSA in an ica-dependent manner.
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Affiliation(s)
- Xiaolin Chen
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Fei Shang
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Yajing Meng
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Long Li
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Yunmei Cui
- School of Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Ming Zhang
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Kezong Qi
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, China.
| | - Ting Xue
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China.
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Tong H, Mao D, Zhai M, Zhang Z, Sun G, Jiang G. Macrophage activation induced by the polysaccharides isolated from the roots of Sanguisorba officinalis. PHARMACEUTICAL BIOLOGY 2015; 53:1511-1515. [PMID: 25853958 DOI: 10.3109/13880209.2014.991834] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
CONTEXT Macrophage, involved at all stages of immune response, is an important component of the host defense system. Polysaccharides exist almost ubiquitously in medical plants and most of them possess immunomodulation and macrophage activation properties. OBJECTIVE This study elucidates the effects on macrophage activation and molecular mechanism induced by the polysaccharides (SOPs) from the roots of Sanguisorba officinalis Linne (Rosaceae). MATERIALS AND METHODS Polysaccharides (SOPs) from the roots of S. officinalis were obtained by water extraction and ethanol precipitation. Physicochemical characterization of SOPs was analyzed by phenol-sulfuric acid, m-hydroxydiphenyl, Bradford method, and gas chromatography. Phagocytic capacity of RAW 264.7 macrophages incubated with SOPs (25 and 100 μg/ml) was determined by the aseptic neutral red method. Macrophages were incubated with SOPs (25 and 100 μg/ml), and the TNF-α and NO the secretion were measured using ELISA kit and Griess reagent, respectively. In addition, TNF-α and iNOS transcripts were evaluated by semi-quantitative RT-PCR, and NF-κB signaling activation was detected by Western blot assay. RESULTS SOPs enhanced the phagocytosis capacity of macrophages to aseptic neutral red solution and increased TNF-α and NO secretion. The amounts of TNF-α and iNOS transcript were increased significantly at the mRNA level when macrophages were exposed to SOPs. Meanwhile, the stimulation of macrophages by SOPs induced phosphorylation of p65 at serine 536 and a marked decrease of IκB expression. DISCUSSION AND CONCLUSION These results suggested that SOPs exhibited significant macrophage activation properties through NF-κB signaling pathway and could be considered as a new immunopotentiator.
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Affiliation(s)
- Haibin Tong
- College of Forestry, Beihua University , Jilin , China and
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Tong H, Song J, Zhang Z, Mao D, Sun G, Jiang G. Inhibitory function of P-selectin-mediated leukocyte adhesion by the polysaccharides from Sanguisorba officinalis. PHARMACEUTICAL BIOLOGY 2015; 53:345-349. [PMID: 25331826 DOI: 10.3109/13880209.2014.919597] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
CONTEXT P-selectin is a promising target for inflammatory-related diseases. Polysaccharides are the active ingredients of Sanguisorba officinalis L. (Rosaceae) responsible for its anti-inflammatory activities; however, the molecular mechanism is not clear yet. OBJECTIVE This study evaluates the effects of polysaccharides (SOPs) from Sanguisorba officinalis on their antagonistic function against P-selectin-mediated leukocyte adhesion. MATERIALS AND METHODS The antagonistic function of SOPs was investigated by flow cytometry and static adhesion assay at the concentrations of 25 and 100 μg/ml. The dynamic interaction between HL-60 cells and CHO-P cell monolayer treated with SOPs (25 and 100 μg/ml) was analyzed in a parallel plate flow chamber, and quantitatively calculated by ImageJ software (NIH, Bethesda, MD). In vitro protein binding assay was carried out to evaluate the blocking effects of SOPs (25 and 100 μg/ml) on the interaction between P-selectin and PSGL-1. RESULTS SOPs-treatment (100 μg/ml) significantly reduced the percentage of HL-60 cells binding to P-selectin (p < 0.01) determined by flow cytometry. In addition, SOPs (25 and 100 μg/ml) markedly blocked the adhesion between HL-60 cells and CHO-P cells under static condition, and the inhibitory rates reached 39.9% and 71.2%, respectively. Compared with the positive control group, SOPs-treatment (25 and 100 μg/ml) significantly reduced the percentage of HL-60 cells rolling on CHO-P cell monolayers by 43.5% and 75.2%, respectively. Protein binding assay showed the interaction between P-selectin and PSGL-1 was significantly blocked by SOPs. DISCUSSION AND CONCLUSION SOPs possess a significant antagonistic function against P-selectin-mediated leukocyte adhesion, and SOPs could be considered as a promising candidate for amelioration of inflammation-related diseases.
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Affiliation(s)
- Haibin Tong
- College of Forestry, Beihua University , Jilin , China
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Hu J, Li H, Yang BS, Mao X, Shi XD. Nordammarane Triterpenoids fromSanguisorba officinalis. Helv Chim Acta 2015. [DOI: 10.1002/hlca.201400245] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Wu Z, Sun H, Li J, Ma C, Zhao S, Guo Z, Lin Y, Lin Y, Liu L. A polysaccharide from Sanguisorbae radix induces caspase-dependent apoptosis in human leukemia HL-60 cells. Int J Biol Macromol 2014; 70:615-20. [PMID: 25036608 DOI: 10.1016/j.ijbiomac.2014.06.062] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 06/18/2014] [Accepted: 06/25/2014] [Indexed: 11/17/2022]
Abstract
One polysaccharide (SRP) was purified from Sanguisorbae radix by DEAE-cellulose-52 anion-exchange and Sephacryl S-400 gel filtration chromatography. The aim of this study was to evaluate the anticancer efficacy of SRP on human leukemia HL-60 cells in vitro and unveil the underlying mechanisms. Our results showed that SRP was able to suppress the proliferation of HL-60 cells in a dose-dependent manner by the mechanism involved in the induction of apoptosis. The increase in SRP-induced apoptosis was correlated with a rapid and sustained loss of mitochondrial transmembrane potential (ΔΨm) and a release of cytochrome c from the mitochondria into the cytosol. Furthermore, Western blot and RT-PCR analysis revealed that the protein and mRNA levels of antiapoptotic Bcl-2 were downregulated, whereas those of pro-apoptotic Bax were upregulated. Besides, caspase-9 and caspase-3 were activated, while caspase-8 was intact. Additionally, the apoptotic cells by SRP were significantly inhibited by a caspase-3 inhibitor (z-DEVD-fmk) or a caspase-9 inhibitor (Z-LETD-FMK), demonstrating the important role of caspase-9 and -3 in the process. Taken together, these findings provided evidence that SRP induced the apoptosis of HL-60 cells through an intrinsic mitochondria-mediated signaling pathway and SRP may be a promising chemotherapeutic agent for treatment of leukemia.
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Affiliation(s)
- Zhigang Wu
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University, Xi'an 710032, China
| | - Honghui Sun
- Department of Orthopaedics Surgery, Tangdu Hospital, the Fourth Military Medical University, Xi'an 710038, China
| | - Jingzhong Li
- Department of Oncology, Center Hospital of Shengli Oilfield, Dongying 257034, China
| | - Chijiao Ma
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University, Xi'an 710032, China
| | - Siqiao Zhao
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University, Xi'an 710032, China
| | - Zheng Guo
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University, Xi'an 710032, China
| | - Yao Lin
- The Second Department of Surgery, No. 518 Hospital of the PLA, Xi'an 710043, China
| | - Yaping Lin
- The Second Department of Surgery, No. 518 Hospital of the PLA, Xi'an 710043, China
| | - Li Liu
- Department of Haematology, Tangdu Hospital, The Fourth Military Medical University, Xi'an 710038, China.
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Cantizani J, Ortiz J, Ravipati AS, Rodriguez L, Cautain B, Zhang L, Reddy N, Nath CE, Vicente F, de Pedro N, Koyyalamud SR. Screening for Natural Inhibitors in Chinese Medicinal Plants against Glycogen Synthase Kinase 3β (GSK-3β). ACTA ACUST UNITED AC 2014. [DOI: 10.5567/pharmacologia.2014.205.214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Sun J, Bai S, Bai W, Zou F, Zhang L, Li G, Hu Y, Li M, Yan R, Su Z, Huang Y. 1,3-Dichloro-2-propanol inhibits progesterone production through the expression of steroidogenic enzymes and cAMP concentration in Leydig cells. Food Chem 2014; 154:330-6. [PMID: 24518350 DOI: 10.1016/j.foodchem.2014.01.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 11/27/2013] [Accepted: 01/08/2014] [Indexed: 11/25/2022]
Abstract
1,3-Dichloro-2-propanol (1,3-DCP) is a well-known food processing contaminant that has been shown to impede male reproductive function. However, its mechanism of action remains elusive. In this study, the effects of 1,3-DCP on progesterone production were investigated using the R2C Leydig cell model. 1,3-DCP significantly reduced cell viability from 7.48% to 97.4% at doses comprised between 0.5 and 6mM. Single cell gel/comet assays and atomic force microscopy assays showed that 1,3-DCP induced early phase cell apoptosis. In addition, 1,3-DCP significantly reduced progesterone production detected by radioimmunoassay (RIA). The results from quantitative polymerase chain reaction and western blotting demonstrated that the mRNA expression levels of steroidogenic acute regulatory protein (StAR), cytochrome P450 side-chain cleavage enzyme and 3β-hydroxysteroid dehydrogenase were significantly down-regulated in R2C cells. Particularly, the change rhythm of Star expression was highly consistent with progesterone production. Furthermore, the cyclic adenosine monophosphate (cAMP) and the mitochondrial membrane potential mediated by ROS, which are involved in regulating progesterone synthesis were also decreased in response to the 1,3-DCP treatment. Overall, the data presented here suggested that 1,3-DCP interferes with the male steroidogenic capacity mainly by down-regulating the level of cAMP and the key enzymes involved in the androgen synthesis pathway.
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Affiliation(s)
- Jianxia Sun
- Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China; Department of Food Science and Engineering, Department of Developmental and Regenerative Biology, Biopharmaceutical R&D Center, Jinan University, Guangzhou 510632, China
| | - Shun Bai
- Department of Food Science and Engineering, Department of Developmental and Regenerative Biology, Biopharmaceutical R&D Center, Jinan University, Guangzhou 510632, China
| | - Weibin Bai
- Department of Food Science and Engineering, Department of Developmental and Regenerative Biology, Biopharmaceutical R&D Center, Jinan University, Guangzhou 510632, China.
| | - Feiyan Zou
- Department of Food Science and Engineering, Department of Developmental and Regenerative Biology, Biopharmaceutical R&D Center, Jinan University, Guangzhou 510632, China
| | - Lei Zhang
- Department of Food Science and Engineering, Department of Developmental and Regenerative Biology, Biopharmaceutical R&D Center, Jinan University, Guangzhou 510632, China
| | - Guoqiang Li
- Department of Food Science and Engineering, Department of Developmental and Regenerative Biology, Biopharmaceutical R&D Center, Jinan University, Guangzhou 510632, China
| | - Yunfeng Hu
- Department of Food Science and Engineering, Department of Developmental and Regenerative Biology, Biopharmaceutical R&D Center, Jinan University, Guangzhou 510632, China
| | - Mingwei Li
- Department of Food Science and Engineering, Department of Developmental and Regenerative Biology, Biopharmaceutical R&D Center, Jinan University, Guangzhou 510632, China
| | - Rian Yan
- Department of Food Science and Engineering, Department of Developmental and Regenerative Biology, Biopharmaceutical R&D Center, Jinan University, Guangzhou 510632, China
| | - Zhijian Su
- Department of Food Science and Engineering, Department of Developmental and Regenerative Biology, Biopharmaceutical R&D Center, Jinan University, Guangzhou 510632, China.
| | - Yadong Huang
- Department of Food Science and Engineering, Department of Developmental and Regenerative Biology, Biopharmaceutical R&D Center, Jinan University, Guangzhou 510632, China
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Feng Y, Wang B, Du F, Li H, Wang S, Hu C, Zhu C, Yu X. The involvement of PI3K-mediated and L-VGCC-gated transient Ca2+ influx in 17β-estradiol-mediated protection of retinal cells from H2O2-induced apoptosis with Ca2+ overload. PLoS One 2013; 8:e77218. [PMID: 24223708 PMCID: PMC3818527 DOI: 10.1371/journal.pone.0077218] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Accepted: 09/02/2013] [Indexed: 12/13/2022] Open
Abstract
Intracellular calcium concentration ([Ca2+]i) plays an important role in regulating most cellular processes, including apoptosis and survival, but its alterations are different and complicated under diverse conditions. In this study, we focused on the [Ca2+]i and its control mechanisms in process of hydrogen peroxide (H2O2)-induced apoptosis of primary cultured Sprague-Dawley (SD) rat retinal cells and 17β-estradiol (βE2) anti-apoptosis. Fluo-3AM was used as a Ca2+ indicator to detect [Ca2+]i through fluorescence-activated cell sorting (FACS), cell viability was assayed using MTT assay, and apoptosis was marked by Hoechst 33342 and annexin V/Propidium Iodide staining. Besides, PI3K activity was detected by Western blotting. Results showed: a) 100 μM H2O2-induced retinal cell apoptosis occurred at 4 h after H2O2 stress and increased in a time-dependent manner, but [Ca2+]i increased earlier at 2 h, sustained to 12 h, and then recovered at 24 h after H2O2 stress; b) 10 μM βE2 treatment for 0.5-24 hrs increased cell viability by transiently increasing [Ca2+]i, which appeared only at 0.5 h after βE2 application; c) increased [Ca2+]i under 100 µM H2O2 treatment for 2 hrs or 10 µM βE2 treatment for 0.5 hrs was, at least partly, due to extracellular Ca2+ stores; d) importantly, the transiently increased [Ca2+]i induced by 10 µM βE2 treatment for 0.5 hrs was mediated by the phosphatidylinositol-3-kinase (PI3K) and gated by the L-type voltage-gated Ca2+ channels (L-VGCC), but the increased [Ca2+]i induced by 100 µM H2O2 treatment for 2 hrs was not affected; and e) pretreatment with 10 µM βE2 for 0.5 hrs effectively protected retinal cells from apoptosis induced by 100 µM H2O2, which was also associated with its transient [Ca2+]i increase through L-VGCC and PI3K pathway. These findings will lead to better understanding of the mechanisms of βE2-mediated retinal protection and to exploration of the novel therapeutic strategies for retina degeneration.
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Affiliation(s)
- Yan Feng
- Department of Genetics and Molecular Biology, School of Medicine, Xi’an Jiaotong University, Xi’an, China
| | - Baoying Wang
- Department of Genetics and Molecular Biology, School of Medicine, Xi’an Jiaotong University, Xi’an, China
| | - Fangying Du
- Department of Genetics and Molecular Biology, School of Medicine, Xi’an Jiaotong University, Xi’an, China
| | - Hongbo Li
- Department of Genetics and Molecular Biology, School of Medicine, Xi’an Jiaotong University, Xi’an, China
| | - Shaolan Wang
- Department of Genetics and Molecular Biology, School of Medicine, Xi’an Jiaotong University, Xi’an, China
| | - Chenghu Hu
- Department of Genetics and Molecular Biology, School of Medicine, Xi’an Jiaotong University, Xi’an, China
| | - Chunhui Zhu
- Department of Genetics and Molecular Biology, School of Medicine, Xi’an Jiaotong University, Xi’an, China
| | - Xiaorui Yu
- Department of Genetics and Molecular Biology, School of Medicine, Xi’an Jiaotong University, Xi’an, China
- Key Laboratory of Environment-and-Gene Related Diseases of the Ministry of Education, School of Medicine, Xi’an Jiaotong University, Xi’an, China
- * E-mail:
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PARK HAEJEONG, KIM HAKJAE. Inhibitory effect of nicardipine on rotenone-induced apoptosis in SH-SY5Y human neuroblastoma cells. Mol Med Rep 2013; 7:941-6. [DOI: 10.3892/mmr.2013.1260] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2012] [Accepted: 12/28/2012] [Indexed: 11/06/2022] Open
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Zhang L, Koyyalamudi SR, Jeong SC, Reddy N, Smith PT, Ananthan R, Longvah T. Antioxidant and immunomodulatory activities of polysaccharides from the roots of Sanguisorba officinalis. Int J Biol Macromol 2012; 51:1057-62. [DOI: 10.1016/j.ijbiomac.2012.08.019] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Revised: 08/13/2012] [Accepted: 08/19/2012] [Indexed: 11/16/2022]
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Sanguisorbae Radix Protects Against 6‐Hydroxydopamine‐induced Neurotoxicity by Regulating NADPH Oxidase and NF‐E2‐related Factor‐2/Heme Oxygenase‐1 Expressions. Phytother Res 2012; 27:1012-7. [DOI: 10.1002/ptr.4802] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2011] [Revised: 07/13/2012] [Accepted: 07/14/2012] [Indexed: 01/30/2023]
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Kim JH, Lee NS, Jeong YG, Lee JH, Kim EJ, Han SY. Protective efficacy of an Ecklonia cava extract used to treat transient focal ischemia of the rat brain. Anat Cell Biol 2012; 45:103-13. [PMID: 22822465 PMCID: PMC3398172 DOI: 10.5115/acb.2012.45.2.103] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Revised: 06/05/2012] [Accepted: 06/08/2012] [Indexed: 12/27/2022] Open
Abstract
Phlorotannins (marine algal polyphenols) have been reported to exhibit beneficial biological activities, serving as both antioxidants and anti-inflammatory agents. Among marine algae, Ecklonia cava, a member of the Laminariaceae, is a very popular food regarded as healthy in Korea and Japan. Recently, benefits afforded by phlorotannins in the treatment of various clinical conditions have been reported, but any therapeutic effects of such materials in the treatment of neurodegenerative diseases such as stroke remain unclear. Also, the mechanisms of action of the algal components remain poorly understood. In the present in vivo study, administration of Ecklonia cava polyphenols (ECP) at 10 mg/kg and 50 mg/kg intraperitoneally (i.p.) significantly decreased infarct size and the extent of brain edema in the rat after induction of transient focal ischemia via middle cerebral artery occlusion (MCAO). Further, terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling (TUNEL) assay revealed dose-dependent blockage of neuronal apoptosis upon intravenous ECP treatment. Neurobehavioral tests performed over the 6 days after MCAO revealed a reduction in neurological motor performance in control animals, but administration of ECP (50 mg/kg i.p.) prevented this decline. In vitro, a significant neuroprotective effect of ECP was evident when cell viability was assayed after induction of H2O2-mediated oxidative stress, upon retinoic acid treatment, in the differentiated neuroblastoma cell line SH-SY5Y. Interestingly, ECP blocked the rise in cytosolic calcium, in a dose-dependent manner, in differentiated SH-SY5Y cells exposed to H2O2. Together, the results suggest that ECP exerts neuroprotective effects in the focally ischemic brain by reducing Ca2+-mediated neurotoxicity.
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Affiliation(s)
- Jeong Hwan Kim
- Department of Anatomy, Myunggok Research Institute, Konyang University College of Medicine, Daejeon, Korea
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Yu T, Lee YJ, Yang HM, Han S, Kim JH, Lee Y, Kim C, Han MH, Kim MY, Lee J, Cho JY. Inhibitory effect of Sanguisorba officinalis ethanol extract on NO and PGE₂ production is mediated by suppression of NF-κB and AP-1 activation signaling cascade. JOURNAL OF ETHNOPHARMACOLOGY 2011; 134:11-17. [PMID: 20832462 DOI: 10.1016/j.jep.2010.08.060] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2010] [Revised: 08/24/2010] [Accepted: 08/31/2010] [Indexed: 05/29/2023]
Abstract
AIM OF THE STUDY Sanguisorba officinalis, a well known valuable medicinal plant in Korea, China and Japan used traditionally for the treatment of inflammatory and metabolic diseases such as diarrhea, chronic intestinal infections, duodenal ulcers, and bleeding. Recent studies have revealed that its aqueous or ethanolic extracts exhibit a variety of pharmacological activities such as anti-oxidative, anti-cancer, anti-lipid peroxidation, anti-atherogenic, and vasorelaxant effects. Systematic studies on the anti-inflammatory effect of this plant and its molecular mechanisms have not yet been fully investigated. Ethanol extract of Sanguisorba officinalis (So-EE) the lipopolysaccharide (LPS)-stimulated macrophages and production of inflammatory mediators were employed to assess these properties. RESULTS So-EE significantly suppressed the production of nitric oxide (NO) and prostaglandin (PG) E(2) from LPS-activated RAW264.7 cells and peritoneal macrophages in a dose-dependent manner. This extract effectively diminished the mRNA levels of inducible NO synthase (iNOS) and cyclooxygenase (COX)-2, implying that the blockade is generated at the transcriptional level. So-EE strongly blocked the activation and translocation of NF-κB and AP-1 by suppressing the upstream kinases including inhibitor of κBα (IκBα), IκBα kinase (IKK), Akt (protein kinase B), phosphoinositide-dependent kinase 1 (PDK1), p85/phosphoinositide-3-kinase (PI3K), and mitogen activated protein kinase (MAPK) such as extracellular signal-regulated kinase (ERK), p38, and c-Jun N-terminal kinase (JNK). Moreover, So-EE suppressed the phosphorylation of Src, its kinase activity, and complex formation between Src and p85. CONCLUSION This study suggests that So-EE has a potent anti-inflammatory activity mediated by NF-κB, and AP-1 inhibitory properties linked to the suppression of Src and MAPK activation.
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Affiliation(s)
- Tao Yu
- College of Biomedical Science, Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon 200-701, Republic of Korea
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Jesky R, Hailong C. Are Herbal Compounds the Next Frontier for Alleviating Learning and Memory Impairments? An Integrative Look at Memory, Dementia and the Promising Therapeutics of Traditional Chinese Medicines. Phytother Res 2011; 25:1105-18. [DOI: 10.1002/ptr.3388] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2010] [Revised: 11/18/2010] [Accepted: 11/22/2010] [Indexed: 12/28/2022]
Affiliation(s)
- Robert Jesky
- Department of General Surgery-Integrated Traditional Chinese and Western Medicine; 1st Affiliated Hospital of Dalian Medical University; No. 222, Zhongshan Road, Xigang District Dalian China
| | - Chen Hailong
- Department of General Surgery-Integrated Traditional Chinese and Western Medicine; 1st Affiliated Hospital of Dalian Medical University; No. 222, Zhongshan Road, Xigang District Dalian China
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Chen J, Chen X, Qin J. Effects of polysaccharides of the Euphoria Longan (Lour.) Steud on focal cerebral ischemia/reperfusion injury and its underlying mechanism. Brain Inj 2011; 25:292-9. [DOI: 10.3109/02699052.2010.546824] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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HPLC and LC-MS analysis of sinomenine and its application in pharmacokinetic studies in rats. Acta Pharmacol Sin 2010; 31:1508-14. [PMID: 20871622 DOI: 10.1038/aps.2010.122] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
AIM To improve and validate analytical methods based on HPLC and liquid chromatography coupled to electrospray ionization tandem mass spectrometry (LC-ESI-MS/MS) for the quantitative measurement of sinomenine in rat plasma and brain tissue. METHODS The separation of analytes and the internal standard (IS), chloramphenicol, was performed on an Agilent TC-C18 column (250×4.6 mm, 5 μm). Blood samples were measured with a Surveyor photodiode array (PDA) detector at a wavelength of 263 nm. The LCQ DECA XP(Plus) mass spectrometer was operated in the multiple reactions monitoring mode using positive electrospray ionization, and the transition from the precursor ion (m/z 279) to the product ion (m/z 224) for sinomenine was measured in brain tissue. RESULTS Measurements were linear over the concentration range of 0.1-100 μg/mL for sinomenine in plasma and over the range of 0.01-5.00 μg/g for sinomenine in brain tissue. The intra- and inter-day variabilities were less than 10% of the relative standard deviation (RSD), and the extraction and recovery of sinomenine was 72.48%-80.26% from plasma and 73.75%-80.26% from brain tissue. The limit of quantification (LOQ) was 0.1 μg/mL for plasma, and 0.01 μg/g for brain tissue. Identification of sinomenine was reproducible at 0.5, 5, and 50 μg/mL in the plasma and at 0.05, 0.50, and 2.00 μg/g in brain tissue. The concentration of sinomenine measured in brain tissue after a single ip dose had a neuroprotective effect on H₂O₂-induced injury in PC12 cells in vitro. CONCLUSION Our methods offered a sensitivity within a wide linear concentration range for sinomenine. These methods were successfully applied to evaluate sinomenine pharmacokinetics over time in rat brain tissue after a single ip dose of 30 mg/kg.
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SA4503, a sigma-1 receptor agonist, prevents cultured cortical neurons from oxidative stress-induced cell death via suppression of MAPK pathway activation and glutamate receptor expression. Neurosci Lett 2010; 469:303-8. [DOI: 10.1016/j.neulet.2009.12.013] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2009] [Revised: 11/19/2009] [Accepted: 12/09/2009] [Indexed: 11/23/2022]
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Giunta B, Fernandez F, Nikolic WV, Obregon D, Rrapo E, Town T, Tan J. Inflammaging as a prodrome to Alzheimer's disease. J Neuroinflammation 2008; 5:51. [PMID: 19014446 PMCID: PMC2615427 DOI: 10.1186/1742-2094-5-51] [Citation(s) in RCA: 198] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2008] [Accepted: 11/11/2008] [Indexed: 12/13/2022] Open
Abstract
Recently, the term "inflammaging" was coined by Franceshci and colleagues to characterize a widely accepted paradigm that ageing is accompanied by a low-grade chronic up-regulation of certain pro-inflammatory responses. Inflammaging differs significantly from the traditional five cardinal features of acute inflammation in that it is characterized by a relative decline in adaptive immunity and T-helper 2 responses and is associated with increased innate immunity by cells of the mononuclear phagocyte lineage. While the over-active innate immunity characteristic of inflammaging may remain subclinical in many elderly individuals, a portion of individuals (postulated to have a "high responder inflammatory genotype") may shift from a state of "normal" or "subclinical" inflammaging to one or more of a number of age-associated diseases. We and others have found that IFN-γ and other pro-inflammatory cytokines interact with processing and production of Aβ peptide, the pathological hallmark feature of Alzheimer's disease (AD), suggesting that inflammaging may be a "prodrome" to AD. Although conditions of enhanced innate immune response with overproduction of pro-inflammatory proteins are associated with both healthy aging and AD, it is suggested that those who age "well" demonstrate anti-inflammaging mechanisms and biomarkers that likely counteract the adverse immune response of inflammaging. Thus, opposing the features of inflammaging may prevent or treat the symptoms of AD. In this review, we fully characterize the aging immune system. In addition, we explain how three novel treatments, (1) human umbilical cord blood cells (HUCBC), (2) flavanoids, and (3) Aβ vaccination oppose the forces of inflammaging and AD-like pathology in various mouse models.
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Affiliation(s)
- Brian Giunta
- Neuroimmunology Laboratory, Department of Psychiatry, Behavioral Medicine, Institute for Research in Psychiatry, University of South Florida, College of Medicine, Tampa, FL 33613, USA.
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