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Thambi A, Chakraborty K. A novel anti-hyperglycemic sulfated pyruvylated polysaccharide from marine macroalga Hydropuntia edulis. Nat Prod Res 2023; 37:2987-2999. [PMID: 36346361 DOI: 10.1080/14786419.2022.2140660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 10/05/2022] [Accepted: 10/21/2022] [Indexed: 11/09/2022]
Abstract
Dipeptidyl peptidase is a crucial enzyme that regulates glucose metabolism by degrading incretins, such as glucagon-like-peptide-1, thereby reducing insulin secretion from the pancreatic β-cells. Consequently, dipeptidyl peptidase-IV inhibitors are an important remedial approach to moderate the hyperglycemic pathophysiology. A pyruvylated polysaccharide characterized as [→3)-4,6-O-(1-carboxyethylidene)-β-D-galp-(2SO3-)-(1→4)-3,6-α-L-AnGalp-(2OMe)-(1→], isolated from the marine macroalga Hydropuntia edulis, showed attenuation potential against dipeptidyl peptidase-IV (IC50 4.44 μM). The structure was elucidated using mass and one/two-dimensional nuclear magnetic resonance spectroscopic analyses of hydrolyzed polysaccharide besides glycosidic linkages obtained from partially methylated alditol acetate derivative. The isolated polysaccharide also revealed potential anti-carbolytic properties against α-amylase/α-glucosidase (IC50 45-47 μM). The results proved the candidacy of pyruvylated polysaccharide isolated from H. edulis as a potential therapeutic lead against hyperglycemia.
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Affiliation(s)
- Anjaly Thambi
- Central Marine Fisheries Research Institute, Cochin, Kerala, India
- Department of Applied Chemistry, Cochin University of Science and Technology, Cochin, Kerala, India
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Damissie G, Tolessa K, Hymete A, Tadesse S. Antidiarrheal coumarins from Psydrax schimperianus (A. Rich.) Bridson roots. JOURNAL OF ETHNOPHARMACOLOGY 2023:116705. [PMID: 37301303 DOI: 10.1016/j.jep.2023.116705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/17/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Psydrax schimperianus (A. Rich.) Bridson. roots are used for the treatment of diarrhea in West Arsi zone, Ethiopia. AIM OF THE STUDY This study aimed to investigate the in vivo antidiarrheal activity of crude extract and coumarins isolated from the roots of Psydrax schimperianus to provide a pharmacological basis for its traditional use as an antidiarrheal agent in Ethiopia. MATERIALS AND METHODS The crude root extract of P. schimperianus was tested for in vivo antidiarrheal efficacy in mice utilizing castor oil-induced diarrhea, gastrointestinal transit time, and enteropooling models at doses of 100, 200, and 400 mg/kg. Phytochemical investigation of the crude root extract led to the isolation of two coumarins, isoscopoletin, and scoparone. Isoscopoletin and scoparone were evaluated for antidiarrheal activity against castor oil-induced diarrhea model at 10 mg/kg and 20 mg/kg doses. RESULTS The crude root extract of P. schimperianus, at doses of 100, 200, and 400 mg/kg, inhibited defecation by 37.5%, 46.2%, and 61.2%, respectively. At a dose of 20 mg/kg, scoparone and isoscopoletin reduced defecation by 61.2% and 66.6%, respectively. CONCLUSION The study warrants continued investigation of isoscopoletin and scoparone towards development as a novel treatment for diarrheal diseases.
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Affiliation(s)
- Getahun Damissie
- Department of Pharmaceutical Chemistry and Pharmacognosy, School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia; Department of Pharmacy, College of Medicine and Health Sciences, Salale University, Fitche, Ethiopia.
| | - Ketema Tolessa
- Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis Ababa, Ethiopia.
| | - Ariaya Hymete
- Department of Pharmaceutical Chemistry and Pharmacognosy, School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia.
| | - Solomon Tadesse
- Department of Pharmaceutical Chemistry and Pharmacognosy, School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia; Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, Kasiska Division of Health Sciences, Idaho State University, Pocatello, ID, 83209, USA.
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Jung WK, Park SB, Yu HY, Kim YH, Kim J. Effect of Esculetin on Tert-Butyl Hydroperoxide-Induced Oxidative Injury in Retinal Pigment Epithelial Cells In Vitro. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248970. [PMID: 36558102 PMCID: PMC9781126 DOI: 10.3390/molecules27248970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
Esculetin is a coumarin-derived compound with antioxidant and anti-inflammatory properties. The current study aims to evaluate the therapeutic implications of esculetin on retinal dysfunction and uncover the underlying mechanisms. Tert-butyl hydroperoxide (t-BHP) at a concentration of 300 μM was used to induce oxidative stress in human retinal pigment epithelial cell line (ARPE-19) cells. Esculetin at concentrations below 250 μM did not cause cytotoxicity to ARPE-19 cells. Cell viability analysis confirmed that t-BHP induced oxidative injury of ARPE-19 cells. However, ARPE-19 cells were protected from t-BHP-induced oxidative injury by esculetin in a concentration-dependent manner. As a result of the TUNEL assay to confirm apoptosis, esculetin treatment reduced the number of TUNEL-positive cells. Esculetin down-regulated the expression levels of Bax, Caspase-3, and PARP and up-regulated the expression level of Bcl2. Collectively, this study demonstrates that esculetin exerts potent antioxidant properties in ARPE-19 cells, inhibiting t-BHP-induced apoptosis under the regulation of apoptotic factors.
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Affiliation(s)
| | | | | | | | - Junghyun Kim
- Correspondence: ; Tel.: +82-63-270-4032; Fax: +82-63-270-4025
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Das D, Adhikary S, Das RK, Banerjee A, Radhakrishnan AK, Paul S, Pathak S, Duttaroy AK. Bioactive food components and their inhibitory actions in multiple platelet pathways. J Food Biochem 2022; 46:e14476. [PMID: 36219755 DOI: 10.1111/jfbc.14476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/29/2022] [Accepted: 09/27/2022] [Indexed: 01/14/2023]
Abstract
In addition to hemostasis and thrombosis, blood platelets are involved in various processes such as inflammation, infection, immunobiology, cancer metastasis, wound repair and angiogenesis. Platelets' hemostatic and non-hemostatic functions are mediated by the expression of various membrane receptors and the release of proteins, ions and other mediators. Therefore, specific activities of platelets responsible for the non-hemostatic disease are to be inhibited while leaving the platelet's hemostatic function unaffected. Platelets' anti-aggregatory property has been used as a primary criterion for antiplatelet drugs/bioactives; however, their non-hemostatic activities are not well known. This review describes the hemostatic and non-hemostatic function of human blood platelets and the modulatory effects of bioactive food components. PRACTICAL APPLICATIONS: In this review, we have discussed the antiplatelet effects of several food components. These bioactive compounds inhibit both hemostatic and non-hemostatic pathways involving blood platelet. Platelets have emerged as critical biological factors of normal and pathologic vascular healing and other diseases such as cancers and inflammatory and immune disorders. The challenge for therapeutic intervention in these disorders will be to find drugs and bioactive compounds that preferentially block specific sites implicated in emerging roles of platelets' complicated contribution to inflammation, tumour growth, or other disorders while leaving at least some of their hemostatic function intact.
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Affiliation(s)
- Diptimayee Das
- Department of Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Chennai, India
| | - Shubhamay Adhikary
- Department of Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Chennai, India
| | - Ranjit Kumar Das
- Department of Health and Biomedical Sciences, University of Texas Rio Grande Valley, Brownsville, Texas, USA
| | - Antara Banerjee
- Department of Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Chennai, India
| | - Arun Kumar Radhakrishnan
- Department of Pharmacology, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Chennai, India
| | - Sujay Paul
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Queretaro, Queretaro, Mexico
| | - Surajit Pathak
- Department of Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Chennai, India
| | - Asim K Duttaroy
- Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Oslo, Norway
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Park SB, Jung W, Kim H, Yu HY, Kim Y, Kim J. Esculetin has therapeutic potential via the proapoptotic signaling pathway in A253 human submandibular salivary gland tumor cells. Exp Ther Med 2022; 24:533. [PMID: 35837055 PMCID: PMC9257944 DOI: 10.3892/etm.2022.11460] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 03/16/2022] [Indexed: 11/24/2022] Open
Abstract
Esculetin is a natural lactone that is commonly derived from coumarins. According to previous experiments using human cancer cells, esculetin has potent antitumor activity; it also inhibits proliferation and induces the apoptosis of cancer cells. In the present study, the anti-proliferative effect of esculetin on the submandibular salivary gland tumor cell line, A253, was evaluated via in vitro and in vivo analyses. Furthermore, the anti-cancer effects of esculetin in A253 cells and a xenograft model of salivary gland tumors were determined using 3-(4,5-dimethylthiazol)-2,5-diphenyltetrazolium bromide and TUNEL assay, apoptosis protein array, quantitative polymerase chain reaction and western blot analysis. Esculetin (50-150 µM) was demonstrated to have an anti-proliferative effect in the A253 cell line in vitro; this observed effect was dependent on the dose and duration of treatment. Esculetin also increased the levels of Bax, cleaved caspase-3, cleaved-9 and cleaved poly (ADP-ribose) polymerase apoptosis-related proteins, and decreased the expression levels of the Bcl-2 anti-apoptotic protein. With respect to apoptosis regulation, esculetin significantly decreased the proliferation of tumor cells in a xenograft model (100 mg/kg/day) for 18 days. Overall, esculetin could be a potential oral anticancer drug against salivary gland cancer.
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Affiliation(s)
- Su-Bin Park
- Department of Oral Pathology, School of Dentistry, Jeonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Woo Jung
- Department of Oral Pathology, School of Dentistry, Jeonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Hyung Kim
- Department of Oral Pathology, School of Dentistry, Jeonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Hwa-Young Yu
- Department of Oral Pathology, School of Dentistry, Jeonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Yong Kim
- Department of Oral Pathology, School of Dentistry, Jeonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Junghyun Kim
- Department of Oral Pathology, School of Dentistry, Jeonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
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Yan L, Huang L, Hu T, Ai Y, Wang B, Sun W. Synthesis of sp-hybridized nitrogen doped ultrathin graphdiyne and application to the electrochemical detection for 6,7-dihydroxycoumarin. Talanta 2022; 242:123295. [DOI: 10.1016/j.talanta.2022.123295] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 01/27/2022] [Accepted: 02/04/2022] [Indexed: 11/30/2022]
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Ranđelović S, Bipat R. A Review of Coumarins and Coumarin-Related Compounds for Their Potential Antidiabetic Effect. Clin Med Insights Endocrinol Diabetes 2022; 14:11795514211042023. [PMID: 35173509 PMCID: PMC8842344 DOI: 10.1177/11795514211042023] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 08/05/2021] [Indexed: 12/21/2022] Open
Abstract
Background and aims: Worldwide, type 2 diabetes mellitus accounts for a considerable burden of disease, with an estimated global cost of >800 billion USD annually. For this reason, the search for more effective and efficient therapeutic anti-diabetic agents is continuing. Coumarins are naturally derived and synthetic molecules with a wide variety of biological actions. The most common application of these molecules in medicine is for their thrombostatic activity. This study aims to give an overview of the current knowledge about the applicability of these chemical products in the therapeutic strategy against diabetes and its complications. Methods: For this purpose, we searched internet databases for publications and abstracts in English that investigated the effects of coumarins or coumarin-like agents with potential anti-diabetic activity. Results: The result is that a variety of these agents have proven in in vitro, in silico, and simple animal models to possess properties that may reduce the glucose absorption rate in the intestines, increase the level of insulin, increase the cellular uptake of glucose or reduce the gluconeogenesis. In addition, some of these agents also reduced the level of glycation of peptides in diabetic animal models and showed antioxidant properties. Conclusion: In conclusion, we can summarize that coumarins and their related derivatives may be potential antidiabetic agents. Useful formulations with appropriate pharmacokinetic and pharmacodynamic properties must be developed and tested for their efficacy and toxicity in comprehensive animal models before they can enter clinical trials.
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Affiliation(s)
- Sara Ranđelović
- Department of Chemistry, Faculty of Sciences and Mathematics, University of Niš, Niš, Serbia
| | - Robbert Bipat
- Department of Physiology, Faculty of Medical Science, Anton de Kom University of Suriname, Paramaribo, Suriname
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Park JE, Kim SY, Han JS. Scopoletin stimulates the secretion of insulin via a KATP channel-dependent pathway in INS-1 pancreatic β cells. J Pharm Pharmacol 2022; 74:1274-1281. [PMID: 35099527 DOI: 10.1093/jpp/rgab143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 12/23/2021] [Indexed: 12/17/2022]
Abstract
OBJECTIVES In this study, we investigated whether scopoletin stimulated the secretion of insulin in pancreatic β cells as well as the underlying mechanism involved in this process. METHODS We incubated the INS-1 pancreatic β cells with various concentrations of glucose (1.1, 5.6 or 16.7 mM) in the presence or absence of scopoletin. We then analysed the secretion of insulin in the cells treated with insulin secretion inhibitors or secretagogues. The intracellular influx of calcium induced by scopoletin was also analysed using the Fluo-2 AM dye. KEY FINDINGS We found that scopoletin (1-20 µM) markedly induced the secretion of insulin in a glucose concentration-dependent manner compared with the control. At depolarizing concentrations of potassium chloride (KCl), scopoletin markedly enhanced the insulin secretion compared with the cells which were treated only with KCl. Moreover, the treatment with diazoxide-opening K+ATP channel and verapamil blocking Ca2+ channel significantly decreased the scopoletin-induced increase in insulin secretion. After the pre-treatment of cells with a Ca2+ fluorescent dye, treatment with 20 µM scopoletin resulted in a significant increase in the influx of intracellular Ca2+, exhibiting fluorescence changes in various spectra. CONCLUSIONS Scopoletin stimulates the secretion of insulin via a K+ATP channel-dependent pathway in the INS-1 pancreatic β cells.
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Affiliation(s)
- Jae Eun Park
- Department of Food Science and Nutrition, Pusan National University, Busan, Republic of Korea
| | - Seon Young Kim
- Department of Food Science and Nutrition, Pusan National University, Busan, Republic of Korea
| | - Ji Sook Han
- Department of Food Science and Nutrition, Pusan National University, Busan, Republic of Korea
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Patel DK. Biological Importance and Therapeutic Benefit of Rhamnocitrin: A Review of Pharmacology and Analytical Aspects. DRUG METABOLISM AND BIOANALYSIS LETTERS 2022; 15:150-158. [PMID: 35794741 DOI: 10.2174/2949681015666220609100336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 03/07/2022] [Accepted: 03/29/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Humans have a long history of the uses of plant based products, including extracts and pure phytoconstituents for the treatment of human diseases in the different system of medicine. In the developing countries, phytoproducts play an important role in the healthcare systems due to their medicinal importance and pharmacological activities. Flavonoids class phytochemicals are beneficial for human beings because of their free radical scavenging properties and trace metals chelating potential. Flavonoids have inhibitory potential for the growth of bacteria and virus mainly through enzyme inhibition functions and viral translation. Rhamnocitrin is also called 7- methyl-kaempferol is important flavonoids, which has been isolated from different medicinal plants and has pharmacological activities in the medicine. METHODS Present paper describes the biological potential and health beneficial aspects of rhamnocitrin in the medicine through the data analysis of published papers in the recent years in the field of medicine and modern medical sciences. Scientific data on rhamnocitrin have been collected from electronic databases such as PubMed, Google Scholar, Google, Scopus and Science Direct in the present investigation and analyzed to know the biological importance and pharmacological activities of rhamnocitrin. Pharmacological scientific data of rhamnocitrin have been collected and analyzed in the present work with their analytical aspects. RESULTS Literature data analysis of different scientific work on rhamnocitrin revealed the biological importance of rhamnocitrin in medicine. Rhamnocitrin is known to be a promising phytoconstituents found to be present in medicinal plants with a wide range of biological activities. Rhamnocitrin was found to have pharmacological activities, including anti-atherogenic, anti-oxidant, anti-cancer, anti-bacterial, anti-inflammatory, enzymatic and neuroprotective potential. Further biological effect of rhamnocitrin on adipocyte differentiation has been also studied in the present work. Analytical data on rhamnocitrin signified the application of different analytical techniques for the separation, isolation and identification of rhamnocitrin in medicine. CONCLUSION Literature data analysis of different scientific research works revealed the biological importance and therapeutic benefit of rhamnocitrin in medicine.
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Affiliation(s)
- Dinesh Kumar Patel
- Department of Pharmaceutical Sciences, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh, India
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Grewal AS, Thapa K, Kanojia N, Sharma N, Singh S. Natural Compounds as Source of Aldose Reductase (AR) Inhibitors for the Treatment of Diabetic Complications: A Mini Review. Curr Drug Metab 2021; 21:1091-1116. [PMID: 33069193 DOI: 10.2174/1389200221666201016124125] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 07/07/2020] [Accepted: 07/18/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Aldol reductase (AR) is the polyol pathway's main enzyme that portrays a crucial part in developing 'complications of diabetes' involving cataract, retinopathy, nephropathy, and neuropathy. These diabetic abnormalities are triggered tremendously via aggregation of sorbitol formation (catalyzed by AR) in the polyol pathway. Consequently, it represents an admirable therapeutic target and vast research was done for the discovery of novel molecules as potential AR inhibitors for diabetic complications. OBJECTIVE This review article has been planned to discuss an outline of diabetic complications, AR and its role in diabetic complications, natural compounds reported as AR inhibitors, and benefits of natural/plant derived AR inhibitors for the management of diabetic abnormalities. RESULTS The goal of AR inhibition remedy is to stabilize the increased flux of blood glucose and sorbitol via the 'polyol pathway' in the affected tissues. A variety of synthetic inhibitors of AR have been established such as tolrestat and sorbinil, but both of these face limitations including low permeability and health problems. Pharmaceutical industries and other scientists were also undertaking work to develop newer, active, and 'safe' AR inhibitors from natural sources. Therefore, several naturally found molecules were documented to possess a potent inhibitory action on AR activity. CONCLUSION Natural inhibitors of AR appeared as harmless pharmacological agents for controlling diabetic complications. The detailed literature throughout this article shows the significance of herbal extracts and phytochemicals as prospective useful AR inhibitors in treating diabetic complications.
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Affiliation(s)
- Ajmer Singh Grewal
- Chitkara School of Basic Sciences, Chitkara University, Himachal Pradesh, India
| | - Komal Thapa
- Chitkara School of Basic Sciences, Chitkara University, Himachal Pradesh, India
| | - Neha Kanojia
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Neelam Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Sukhbir Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
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The antithrombotic activity of natural and synthetic coumarins. Fitoterapia 2021; 154:104947. [PMID: 34352355 DOI: 10.1016/j.fitote.2021.104947] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 05/29/2021] [Accepted: 05/30/2021] [Indexed: 12/30/2022]
Abstract
Thrombosis, which seriously endangers human health and life, is the leading cause of morbidity and mortality globally. Antithrombotic drugs can interfere with the occurrence and development of thrombotic diseases and play an important role in the treatment of thrombotic diseases. However, unsatisfactory efficacy and serious adverse effects of existing antithrombotic drugs increase the research for new, efficient and safer drugs. Natural and synthetic coumarins have been shown to possess antithrombotic activity, namely, anticoagulation and antiplatelet aggregation. Especially, coumarin-based warfarin, phenprocoumon and cloricromen have long been used in clinical treatment of thrombosis. Coumarin with low toxicity is the privileged structure for developing novel antithrombotic drugs with multiple mechanisms of action. The present review aims to compile current research on the development of coumarins against thrombosis, emphasizing the relationship between their chemical structures and therapeutic effectiveness. It is intended to provide promising ideas for the discovery of novel coumarin derivatives with high antithrombotic activity.
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Boudreau A, Richard AJ, Harvey I, Stephens JM. Artemisia scoparia and Metabolic Health: Untapped Potential of an Ancient Remedy for Modern Use. Front Endocrinol (Lausanne) 2021; 12:727061. [PMID: 35211087 PMCID: PMC8861327 DOI: 10.3389/fendo.2021.727061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 12/16/2021] [Indexed: 11/19/2022] Open
Abstract
Botanicals have a long history of medicinal use for a multitude of ailments, and many modern pharmaceuticals were originally isolated from plants or derived from phytochemicals. Among these, artemisinin, first isolated from Artemisia annua, is the foundation for standard anti-malarial therapies. Plants of the genus Artemisia are among the most common herbal remedies across Asia and Central Europe. The species Artemisia scoparia (SCOPA) is widely used in traditional folk medicine for various liver diseases and inflammatory conditions, as well as for infections, fever, pain, cancer, and diabetes. Modern in vivo and in vitro studies have now investigated SCOPA's effects on these pathologies and its ability to mitigate hepatotoxicity, oxidative stress, obesity, diabetes, and other disease states. This review focuses on the effects of SCOPA that are particularly relevant to metabolic health. Indeed, in recent years, an ethanolic extract of SCOPA has been shown to enhance differentiation of cultured adipocytes and to share some properties of thiazolidinediones (TZDs), a class of insulin-sensitizing agonists of the adipogenic transcription factor PPARγ. In a mouse model of diet-induced obesity, SCOPA diet supplementation lowered fasting insulin and glucose levels, while inducing metabolically favorable changes in adipose tissue and liver. These observations are consistent with many lines of evidence from various tissues and cell types known to contribute to metabolic homeostasis, including immune cells, hepatocytes, and pancreatic beta-cells. Compounds belonging to several classes of phytochemicals have been implicated in these effects, and we provide an overview of these bioactives. The ongoing global epidemics of obesity and metabolic disease clearly require novel therapeutic approaches. While the mechanisms involved in SCOPA's effects on metabolic, anti-inflammatory, and oxidative stress pathways are not fully characterized, current data support further investigation of this plant and its bioactives as potential therapeutic agents in obesity-related metabolic dysfunction and many other conditions.
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Affiliation(s)
- Anik Boudreau
- Adipocyte Biology Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, United States
| | - Allison J. Richard
- Adipocyte Biology Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, United States
| | - Innocence Harvey
- Adipocyte Biology Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, United States
| | - Jacqueline M. Stephens
- Adipocyte Biology Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, United States
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, United States
- *Correspondence: Jacqueline M. Stephens,
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A highly sensitive sensor based on electropolymerization for electrochemical detection of esculetin. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105368] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Capillarisin protects SH-SY5Y cells against bupivacaine-induced apoptosis via ROS-mediated PI3K/PKB pathway. Life Sci 2020; 259:118279. [DOI: 10.1016/j.lfs.2020.118279] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 08/05/2020] [Accepted: 08/10/2020] [Indexed: 01/10/2023]
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Majnooni MB, Fakhri S, Shokoohinia Y, Mojarrab M, Kazemi-Afrakoti S, Farzaei MH. Isofraxidin: Synthesis, Biosynthesis, Isolation, Pharmacokinetic and Pharmacological Properties. Molecules 2020; 25:E2040. [PMID: 32349420 PMCID: PMC7248759 DOI: 10.3390/molecules25092040] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/23/2020] [Accepted: 04/24/2020] [Indexed: 12/28/2022] Open
Abstract
Isofraxidin (7-hydroxy-6, 8-dimethoxy coumarin) (IF) is a hydroxy coumarin with several biological and pharmacological activities. The plant kingdom is of the most prominent sources of IF, which, among them, Eleutherococcus and Fraxinus are the well-known genera in which IF could be isolated/extracted from their species. Considering the complex pathophysiological mechanisms behind some diseases (e.g., cancer, neurodegenerative diseases, and heart diseases), introducing IF as a potent multi-target agent, which possesses several herbal sources and the multiple methods for isolation/purification/synthesis, along with the unique pharmacokinetic profile and low levels of side effects, could be of great importance. Accordingly, a comprehensive review was done without time limitations until February 2020. IF extraction methods include microwave, mechanochemical, and ultrasound, along with other conventional methods in the presence of semi-polar solvents such as ethyl acetate (EtOAc). In addition to the isolation methods, related synthesis protocols of IF is also of great importance. From the synthesis point of view, benzaldehyde derivatives are widely used as precursors for IF synthesis. Along with the methods of isolation and biosynthesis, IF pharmacokinetic studies showed hopeful in vivo results of its rapid absorption after oral uses, leading to different pharmacological effects. In this regard, IF targets varieties of inflammatory mediators including nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), tumor necrosis factor-α (TNF-α), and matrix metalloproteinases (MMPs). thereby indicating anticancer, cardioprotective, and neuroprotective effects. This is the first review on the synthesis, biosynthesis, isolation, and pharmacokinetic and pharmacological properties of IF in combating different diseases.
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Affiliation(s)
- Mohammad Bagher Majnooni
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah 6714415153, Iran; (M.B.M.); (S.K.-A.)
| | - Sajad Fakhri
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran; (S.F.); (Y.S.); (M.M.)
| | - Yalda Shokoohinia
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran; (S.F.); (Y.S.); (M.M.)
- Ric Scalzo Botanical Research Institute, Southwest College of Naturopathic Medicine, Tempe, AZ 85282, USA
| | - Mahdi Mojarrab
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran; (S.F.); (Y.S.); (M.M.)
| | - Sara Kazemi-Afrakoti
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah 6714415153, Iran; (M.B.M.); (S.K.-A.)
| | - Mohammad Hosein Farzaei
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran; (S.F.); (Y.S.); (M.M.)
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Gupta MK, Kumar S, Chaudhary S. Synthesis and Investigation of Antidiabetic Response of New Coumarin Derivatives Against Streptozotocin Induced Diabetes in Experimental Rats. Pharm Chem J 2020. [DOI: 10.1007/s11094-020-02134-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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17
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Karatug Kacar A, Bahadori F, Kepekci Tekkeli SE, Topcu G, Bolkent S. Investigation of cell death mechanism and activity of esculetin-loaded PLGA nanoparticles on insulinoma cells in vitro. ACTA ACUST UNITED AC 2020; 72:592-606. [PMID: 31978266 DOI: 10.1111/jphp.13228] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 12/13/2019] [Accepted: 12/17/2019] [Indexed: 01/03/2023]
Abstract
AIM The purpose of this study was to prepare targeted cancer therapy formulation against insulinoma INS-1 cells and to study its effect on cell death with related mechanisms in vitro. METHODS Polylactide-co-glycolide (PLGA) nano-micelles were used for preparation of esculetin nano-formulation (nano-esculetin). The cells were treated with nano-esculetin and free esculetin. Apoptotic and necrotic cell death percentages, cell proliferation, ATP and GTP reductions and insulin levels were investigated on insulinoma INS-1 cells for both free and nano-esculetin formulations. RESULTS About 50 mg of PLGA was able to carry 20 mg esculetin in 20 ml of formulation. The obtained optimized formulation was 150 nm, with 92% encapsulation efficiency and a slow-release behaviour was observed during release studies. Nano-esculetin bearing 25, 50 and 100 μg esculetin and free esculetin in equivalent doses successfully decreased cell viability. The prevailing cell death mechanism was necrosis. Along with cell proliferation, intracellular insulin and the ratio of ATP and GTP were decreased even with 12.5, 25 and 50 μg esculetin bearing nano-formulation and its equivalent free esculetin. CONCLUSIONS The results revealed that esculetin is able to show its anti-tumor afficacy after loading to PLGA nano-micelles and nano-encapsulation intensifies its cytotoxic activity in vitro. Current study shows that esculetin and its nano formulations are promising agents in treatment of insulinoma.
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Affiliation(s)
- Ayse Karatug Kacar
- Department of Biology, Faculty of Science, Istanbul University, Istanbul, Turkey
| | - Fatemeh Bahadori
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Bezmialem Vakif University, Istanbul, Turkey
| | | | - Gulacti Topcu
- Department of Pharmacognosy, Faculty of Pharmacy, Bezmialem Vakif University, Istanbul, Turkey
| | - Sehnaz Bolkent
- Department of Biology, Faculty of Science, Istanbul University, Istanbul, Turkey
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Rondanelli M, Fossari F, Vecchio V, Braschi V, Riva A, Allegrini P, Petrangolini G, Iannello G, Faliva MA, Peroni G, Nichetti M, Gasparri C, Spadaccini D, Infantino V, Mustafa S, Alalwan T, Perna S. Acmella oleracea for pain management. Fitoterapia 2019; 140:104419. [PMID: 31705952 DOI: 10.1016/j.fitote.2019.104419] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 11/04/2019] [Accepted: 11/04/2019] [Indexed: 02/07/2023]
Abstract
Despite advances in medicine and numerous agents that counteract pain, millions of patients continue to suffer. Attention has been given to identify novel botanical interventions that produce analgesia by interacting with nociceptive-transducing channels. The aim of this review is to provide an overview of the actual knowledge of Acmella oleracea (L.) and its activities, particularly those that are anti-inflammatory, anti-oxidant, and painkiller. These activities are attributed to numerous bioactive compounds, such as phytosterols, phenolic compounds and N-alkylamides (spilanthol, responsible for many activities, primarily anesthetic). This review includes 99 eligible studies to consider the anti-inflammatory, anti-oxidant, and painkiller of Acmella. Studies reported in this review confirmed anti-inflammatory and anti-oxidant activities of Acmella, postulating that transcription factors of the nuclear factor-κB family (NF-κB) trigger the transcription iNOS and COX-2 and several other pro-inflammatory mediators, such as IL-6, IL-1β, and TNF-α. The antinociceptive effects has been demonstrated and have been related to different processes, including inhibition of prostaglandin synthesis, activation of opioidergic, serotoninergic and GABAergic systems, and anesthetic activity through blockage of voltage-gated Na Channels. acmella oleracea represents a promise for pain management, particularly in chronic degenerative diseases, where pain is a significant critical issue.
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Affiliation(s)
- Mariangela Rondanelli
- IRCCS Mondino Foundation, Pavia 27100, Italy; Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia 27100, Italy.
| | - Federica Fossari
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona "Istituto Santa Margherita", University of Pavia, Pavia 27100, Italy.
| | - Viviana Vecchio
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona "Istituto Santa Margherita", University of Pavia, Pavia 27100, Italy.
| | - Valentina Braschi
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona "Istituto Santa Margherita", University of Pavia, Pavia 27100, Italy.
| | - Antonella Riva
- Research and Development Unit, Indena, Milan 20139, Italy.
| | | | | | - Giancarlo Iannello
- General Management, Azienda di Servizi alla Persona "Istituto Santa Margherita", Pavia 27100, Italy.
| | - Milena Anna Faliva
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona "Istituto Santa Margherita", University of Pavia, Pavia 27100, Italy
| | - Gabriella Peroni
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona "Istituto Santa Margherita", University of Pavia, Pavia 27100, Italy.
| | - Mara Nichetti
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona "Istituto Santa Margherita", University of Pavia, Pavia 27100, Italy
| | - Clara Gasparri
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona "Istituto Santa Margherita", University of Pavia, Pavia 27100, Italy.
| | - Daniele Spadaccini
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona "Istituto Santa Margherita", University of Pavia, Pavia 27100, Italy.
| | - Vittoria Infantino
- University of Bari, Department of Biomedical Science and Human Oncology, Bari 70121, Italy
| | - Sakina Mustafa
- Department of Biology, College of Science, University of Bahrain, Sakhir Campus P. O., Box 32038, Bahrain
| | - Tariq Alalwan
- Department of Biology, College of Science, University of Bahrain, Sakhir Campus P. O., Box 32038, Bahrain.
| | - Simone Perna
- Department of Biology, College of Science, University of Bahrain, Sakhir Campus P. O., Box 32038, Bahrain
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Choi YJ, Lee CM, Park SH, Nam MJ. Esculetin induces cell cycle arrest and apoptosis in human colon cancer LoVo cells. ENVIRONMENTAL TOXICOLOGY 2019; 34:1129-1136. [PMID: 31313495 DOI: 10.1002/tox.22815] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 06/25/2019] [Accepted: 06/26/2019] [Indexed: 06/10/2023]
Abstract
We investigated the anti-cancer effects of ESC in human colon cancer LoVo cells. Cell counting assay results showed that ESC inhibited the proliferation of LoVo cells. Cell cycle arrest results showed that cell cycle was arrested during the G0/G1 phase in the ESC-treated LoVo cells. Western blot results showed that the cell cycle inhibitory proteins p53, p27, and p21 were increased, and cyclin D1, the cell cycle progressive protein, was decreased. Sp1 is a transcription factor regulating cell proliferation, was decreased in the ESC-treated LoVo cells. Annexin V/propidium iodide staining results showed that ESC induces apoptosis in LoVo cells. Western blot results showed that Bax, cleaved caspase -3, -7, -9, and poly(ADP-ribose) polymerase, which are proapoptotic proteins, were increased and the antiapoptotic protein Bcl-2 was decreased. Taken together, ESC induced apoptosis and has an anti-cancer effect in LoVo cells.
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Affiliation(s)
- Yong J Choi
- Department of Biological Sciences, Gachon University, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Chang M Lee
- Department of Biological Sciences, Gachon University, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - See-Hyoung Park
- Department of Bio and Chemical Engineering, Hongik University, Sejong, Republic of Korea
| | - Myeong J Nam
- Department of Biological Sciences, Gachon University, Seongnam-si, Gyeonggi-do, Republic of Korea
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Kalpana K, Sathiya Priya C, Dipti N, Vidhya R, Anuradha CV. Supplementation of scopoletin improves insulin sensitivity by attenuating the derangements of insulin signaling through AMPK. Mol Cell Biochem 2018; 453:65-78. [PMID: 30145644 DOI: 10.1007/s11010-018-3432-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Accepted: 08/16/2018] [Indexed: 02/05/2023]
Abstract
Scopoletin (SPL), a phenolic coumarin, is reported to regulate glucose metabolism. This study is initiated to substantiate the action of SPL on the regulation of insulin signaling in insulin resistant RIN5f cells and high fat, high fructose diet (HFFD)-fed rat model. Adult male Sprague Dawley rats were fed HFFD for 45 days to induce type 2 diabetes and then treated or untreated with SPL for the next 45 days. The levels of glucose, insulin, lipid profile, oxidative stress markers along with insulin signaling and AMPK protein expressions were examined at the end of 90 days. SPL lowered the levels of plasma glucose, insulin, and lipids which were increased in HFFD-fed rats. HFFD intake suppressed the activities of antioxidant enzymes such as superoxide dismutase, catalase, and glutathione peroxidase; however, they were reversed by SPL supplementation, which reduced TBARS, lipid hydroperoxide, and protein carbonyl levels both in plasma and pancreas. SPL supplementation significantly activated insulin receptor substrate 1 (IRS1), phosphatidyl inositol 3-kinase (PI3K), and protein kinase B (Akt) phosphorylation which was suppressed in HFFD rats due to lipotoxicity. Moreover, SPL significantly activated AMPK and enhanced the association of IRS1-PI3K-Akt compared to the control group. The results revealed that SPL alleviated T2D induced by HFFD by escalating the antioxidant levels and through insulin signaling regulation. We conclude that SPL can improve insulin signaling through AMPK, thereby confirming the role of SPL as an AMPK activator.
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Affiliation(s)
- Kalaivanan Kalpana
- Department of Biochemistry and Biotechnology, Annamalai University, Annamalainagar, Chidambaram, Tamil Nadu, 608002, India
| | - Chandrasekaran Sathiya Priya
- Department of Biochemistry and Biotechnology, Annamalai University, Annamalainagar, Chidambaram, Tamil Nadu, 608002, India
| | - Nanda Dipti
- Department of Biochemistry and Biotechnology, Annamalai University, Annamalainagar, Chidambaram, Tamil Nadu, 608002, India
| | - Ramachandran Vidhya
- Department of Biochemistry and Biotechnology, Annamalai University, Annamalainagar, Chidambaram, Tamil Nadu, 608002, India
| | - Carani Venkatraman Anuradha
- Department of Biochemistry and Biotechnology, Annamalai University, Annamalainagar, Chidambaram, Tamil Nadu, 608002, India.
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22
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Jang JH, Park JE, Han JS. Scopoletin inhibits α-glucosidase in vitro and alleviates postprandial hyperglycemia in mice with diabetes. Eur J Pharmacol 2018; 834:152-156. [PMID: 30031794 DOI: 10.1016/j.ejphar.2018.07.032] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 07/16/2018] [Accepted: 07/18/2018] [Indexed: 12/30/2022]
Abstract
The aim of this study was to investigate whether scopoletin could inhibit the activities of the carbohydrate digestive enzymes, α-glucosidase and α-amylase, and reduce postprandial hyperglycemia in streptozotocin (STZ)-induced diabetes in mice. Scopoletin showed a distinct inhibitory effect on α-glucosidase and α-amylase. The half maximal inhibitory concentration (IC50) of scopoletin was 85.12 and 37.36 μM for α-glucosidase and α-amylase, respectively, which were lower values than those for acarbose. The increase in postprandial blood glucose levels was significantly suppressed in the scopoletin group compared to the control group of STZ-induced diabetes in mice. Moreover, the area under the curve significantly decreased with the administration of scopoletin in STZ-induced diabetes in mice. These results showed that scopoletin might help to lower postprandial hyperglycemia through inhibition of carbohydrate digestive enzymes.
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Affiliation(s)
- June Hyuk Jang
- Department of Food Science and Nutrition, Pusan National University, Busan 46241, Republic of Korea
| | - Jae Eun Park
- Department of Food Science and Nutrition, Pusan National University, Busan 46241, Republic of Korea
| | - Ji Sook Han
- Department of Food Science and Nutrition, Pusan National University, Busan 46241, Republic of Korea.
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Screening of the Antioxidant and Enzyme Inhibition Potentials of Portuguese Pimpinella anisum L. Seeds by GC-MS. FOOD ANAL METHOD 2018. [DOI: 10.1007/s12161-018-1250-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Kim WK, Byun WS, Chung HJ, Oh J, Park HJ, Choi JS, Lee SK. Esculetin suppresses tumor growth and metastasis by targeting Axin2/E-cadherin axis in colorectal cancer. Biochem Pharmacol 2018. [PMID: 29534875 DOI: 10.1016/j.bcp.2018.03.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Colorectal cancer (CRC) is the most common malignant disease worldwide due to its metastasis via the epithelial-mesenchymal transition (EMT) process. E-cadherin and Wnt signaling are emerging as potential targets for suppressing the EMT. In this context, Axin2 has been recognized as a negative regulator that inhibits glycogen synthase kinase 3β (GSK3β)-mediated degradation of Snail1, a transcriptional repressor of E-cadherin. However, Axin2 can also impede Wnt signaling via β-catenin degradation. Therefore, Axin2 may serve as either a promoter or suppressor of tumors, and the effects of its inhibition on the cell proliferation and metastasis of CRC require further elucidation. Here, esculetin (ES), a coumarin, was found to have the most potential effects on both β-catenin-responsive transcriptional and E-cadherin promoter activities. ES also showed anti-proliferative and anti-invasive activities in CRC cells. Mechanistically, Axin2 suppression by ES contributed to E-cadherin-mediated Wnt signaling inhibition. Moreover, the ability of ES to inhibit tumor growth and metastasis via Axin2 suppression was further supported in an HCT116-implanted orthotopic mouse model. Collectively, these findings suggest that targeting the Axin2/E-cadherin axis by ES may be an attractive therapeutic strategy for the treatment of metastatic CRC.
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Affiliation(s)
- Won Kyung Kim
- College of Pharmacy, Natural Products Research Institute, Seoul National University, Seoul 08826, Republic of Korea
| | - Woong Sub Byun
- College of Pharmacy, Natural Products Research Institute, Seoul National University, Seoul 08826, Republic of Korea
| | - Hwa-Jin Chung
- Jaseng Spine and Joint Research Institute, Jaseng Medical Foundation, Seoul 06017, Republic of Korea
| | - Jedo Oh
- College of Pharmacy, Natural Products Research Institute, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyen Joo Park
- College of Pharmacy, Natural Products Research Institute, Seoul National University, Seoul 08826, Republic of Korea
| | - Jae Sue Choi
- Department of Food Science and Nutrition, Pukyong National University, Busan 608-737, Republic of Korea
| | - Sang Kook Lee
- College of Pharmacy, Natural Products Research Institute, Seoul National University, Seoul 08826, Republic of Korea.
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Nishina A, Ukiya M, Fukatsu M, Koketsu M, Ninomiya M, Sato D, Yamamoto J, Kobayashi-Hattori K, Okubo T, Tokuoka H, Kimura H. Effects of Various 5,7-Dihydroxyflavone Analogs on Adipogenesis in 3T3-L1 Cells. Biol Pharm Bull 2016; 38:1794-800. [PMID: 26521830 DOI: 10.1248/bpb.b15-00489] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We studied the effects of twelve 5,7-dihydroxyflavone analogs on adipogenesis in 3T3-L1 cells. Among the compounds, luteolin, diosmetin, and chrysoeriol partly inhibited adipogenesis by blocking the accumulation of triacylglycerol in the cells. Conversely, tricetin facilitated triacylglycerol accumulation in the cells. The induction of lipogenesis or lipolysis may depend on the number and bonding position of hydroxyl or methoxy groups on the B ring of 5,7-dihydroxyflavone. The mRNA expression levels of adipogenic and lipogenic genes were suppressed by luteolin treatment in the cells, while the mRNA levels of lipolytic genes were not affected. However, the expression levels of the adipogenic, lipogenic, and lipolytic genes, except for adipocyte protein 2 (aP2), were not affected by the addition of tricetin. Moreover, luteolin suppressed glucose transporter type 4 (GLUT4) gene and protein levels. These results indicate that luteolin decreased triacylglycerol levels in 3T3-L1 cells during adipogenesis through the suppression of adipogenic/lipogenic and GLUT4 genes and GLUT4 protein.
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Rashid MU, Alamzeb M, Ali S, Shah ZA, Naz I, Khan AA, Semaan D, Khan MR. A new irregular monoterpene acetate along with eight known compounds with antifungal potential from the aerial parts of Artemisia incisa Pamp (Asteraceae). Nat Prod Res 2016; 31:428-435. [PMID: 27187805 DOI: 10.1080/14786419.2016.1185718] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
A new compound named as santolinylol-3-acetate (4-(2-hydroxypropan-2-yl)-2-methylhexa-1,5-dien-3-yl acetate) (3), along with seven known compounds; linoleic acid (1), benzoic acid (2), santolinylol (4), ethyl-(E)-p-hydroxy cinnamate (5), scopoletin (6), esculetin (7) isofraxidin (8) and eupatorin (9), were isolated from the aerial parts (ethanolic extract) of endangered species: Artemisia incisa Pamp (Asteraceae). The compounds' structures were determined through modern spectroscopic techniques, and comparison of data (physicochemical constants) with the literature. The relative stereochemistry of santolinylol-3-acetate (3) was determined by comparing its data of NOESY, and specific rotation with its diol analogue; santolinylol (4), isolated from the same plant; A. incisa. The results of the antifungal activity showed that coumarins are as whole less active compounds. Compounds 3 (25 and 300 μg/mL), and 4 (12.5 and 300 μg/mL), showed good activities against Candida albicans, and Aspergillus flavus, respectively, which justifies A. incisa as a traditional medicine for curing the said fungal infections.
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Affiliation(s)
- Mamoon Ur Rashid
- a Phytopharmaceutical and Nutraceutical Research Laboratories (PNRL), Institute of Chemical Sciences , University of Peshawar , Peshawar , Pakistan
| | - Muhammad Alamzeb
- b Institute of Chemical Sciences , University of Swat , Swat , Pakistan
| | - Saqib Ali
- c Department of Chemistry , Moin Ud Din University Nehrain Sharif , Azad Kashmir , Pakistan
| | - Zafar Ali Shah
- d Department of Agriculture Chemistry , The Agriculture University Peshawar , Peshawar , Pakistan
| | - Ishrat Naz
- e Department of Plant Pathology , The Agriculture University Peshawar , Peshawar , Pakistan
| | - Ashfaq Ahmad Khan
- a Phytopharmaceutical and Nutraceutical Research Laboratories (PNRL), Institute of Chemical Sciences , University of Peshawar , Peshawar , Pakistan
| | - Dima Semaan
- f Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS) , University of Strathclyde , Glasgow , Scotland, UK
| | - Mohammad Rafiullah Khan
- a Phytopharmaceutical and Nutraceutical Research Laboratories (PNRL), Institute of Chemical Sciences , University of Peshawar , Peshawar , Pakistan
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Promising anti-diabetic potential of capillin and capillinol isolated from Artemisia capillaris. Arch Pharm Res 2016; 39:340-9. [DOI: 10.1007/s12272-016-0715-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2015] [Accepted: 01/26/2016] [Indexed: 01/29/2023]
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Pan H, Wang BH, Lv W, Jiang Y, He L. Esculetin induces apoptosis in human gastric cancer cells through a cyclophilin D-mediated mitochondrial permeability transition pore associated with ROS. Chem Biol Interact 2015; 242:51-60. [PMID: 26388407 DOI: 10.1016/j.cbi.2015.09.015] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Revised: 08/20/2015] [Accepted: 09/16/2015] [Indexed: 01/20/2023]
Abstract
Esculetin is a coumarin derivative from natural plants that has been commonly used as a folk medicine and has been reported to have beneficial pharmacological and biochemical activities; however, the mechanism by which esculetin prevents human gastric cancer cell growth is still largely unknown. In this study, we investigated the effect of esculetin on human gastric cancer cells and explored the cell death mechanism. Our data indicated that esculetin inhibited the growth of human gastric cancer cells in a dose- and time-dependent manner and apoptosis was the main cause of decreased cell viability in esculetin-treated cells. Additionally, esculetin treatment increased the activity of caspase-9 and caspase-3, and resulted in the appearance of the PARP cleavage product; and esculetin-induced cell death and apoptosis was decreased by pretreatment with CsA and NAC, but not BA; these results demonstrate that esculetin induced apoptosis via the caspase-dependent mitochondrial pathway in human gastric cancer cells in which cyclophilin D mediated the cytotoxic action by triggering the opening of the mitochondrial permeability transition pore; and the generation of ROS not only was a consequence of mitochondrial dysfunction, but also triggered esculetin-induced apoptosis. These results reveal a novel mechanism of esculetin on gastric cancer cells and suggest that esculetin could be a novel agent in the treatment of gastric cancer.
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Affiliation(s)
- Hui Pan
- The First Affiliated Hospital, College of Medicine, Zhejiang University, Qingchun Road 79, Hangzhou, China.
| | - Bao-Hui Wang
- Zhejiang Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Wang Lv
- The First Affiliated Hospital, College of Medicine, Zhejiang University, Qingchun Road 79, Hangzhou, China
| | - Yan Jiang
- Zhejiang Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Lei He
- The First Affiliated Hospital, College of Medicine, Zhejiang University, Qingchun Road 79, Hangzhou, China
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Tian X, Chang L, Ma G, Wang T, Lv M, Wang Z, Chen L, Wang Y, Gao X, Zhu Y. Delineation of Platelet Activation Pathway of Scutellarein Revealed Its Intracellular Target as Protein Kinase C. Biol Pharm Bull 2015; 39:181-91. [PMID: 26581323 DOI: 10.1248/bpb.b15-00511] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Erigeron breviscapus has been widely used in traditional Chinese medicine (TCM) and its total flavonoid component is commonly used to treat ischemic stroke, coronary heart disease, diabetes and hypertension. Scutellarin is the major ingredient of E. breviscapus and scutellarein is one of the main bioactive metabolites of scutellarin in vivo, but the latter's pharmacological activities have not been fully characterized. Provided evidence that could inhibit platelet aggregation, the effect of scutellarein on rat washed platelets and its underlying mechanisms were evaluated in our research. Scutellarein inhibited platelet adhesion and aggregation induced by multiple G protein coupled receptor agonists such as thrombin, U46619 and ADP, in a concentration-dependent manner. Furthermore, the mild effect of scutellarein on intracellular Ca(2+) mobilization and cyclic AMP (cAMP) level was observed. On the other hand, the role of scutellarein as potential protein kinase C (PKC) inhibitor was confirmed by PKC activity analysis and molecular docking. The phorbol myristate acetate-induced platelets aggregation assay with or without ADP implied that the scutellarein takes PKC(s) as its primary target(s), and acts on it in a reversible way. Finally, scutellarein as a promising agent exhibited a high inhibition effect on ADP-induced platelet aggregation among its analogues. This study clarifies the PKC-related signaling pathway involved in antiplatelet action of scutellarein, and may be beneficial for the treatment of cardiovascular diseases.
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Affiliation(s)
- Xiaoxuan Tian
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine
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Jeon YJ, Cho JH, Lee SY, Choi YH, Park H, Jung S, Shim JH, Chae JI. Esculetin Induces Apoptosis Through EGFR/PI3K/Akt Signaling Pathway and Nucleophosmin Relocalization. J Cell Biochem 2015; 117:1210-21. [DOI: 10.1002/jcb.25404] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Accepted: 10/06/2015] [Indexed: 12/20/2022]
Affiliation(s)
- Young-Joo Jeon
- Department of Dental Pharmacology; School of Dentistry; BK21 Plus; Chonbuk National University; Jeonju Republic of Korea
| | - Jin Hyoung Cho
- Department of Dental Pharmacology; School of Dentistry; BK21 Plus; Chonbuk National University; Jeonju Republic of Korea
| | - Seung-Yeop Lee
- Cluster for Craniofacial Development and Regeneration Research; Institute of Oral Biosciences and School of Dentistry; Chonbuk National University; Jeonju South Korea
| | - Yung Hyun Choi
- Department of Biochemistry; Dongeui University College of Oriental Medicine; Busan 614-052 Republic of Korea
| | - Hongju Park
- Department of Oral and Maxillofacial Surgery; School of Dentistry; Chonnam National University; Gwangju Republic of Korea
| | - Seunggon Jung
- Department of Oral and Maxillofacial Surgery; Chonnam National University Hwasun Hospital; Hwasun Jeonnam Republic of Korea
| | - Jung-Hyun Shim
- Natural Medicine Research Institute; Department of Pharmacy; College of Pharmacy; Mokpo National University; Jeonnam 534-729 Republic of Korea
| | - Jung-Il Chae
- Department of Dental Pharmacology; School of Dentistry; BK21 Plus; Chonbuk National University; Jeonju Republic of Korea
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Jeon YJ, Jang JY, Shim JH, Myung PK, Chae JI. Esculetin, a Coumarin Derivative, Exhibits Anti-proliferative and Pro-apoptotic Activity in G361 Human Malignant Melanoma. J Cancer Prev 2015; 20:106-12. [PMID: 26151043 PMCID: PMC4492354 DOI: 10.15430/jcp.2015.20.2.106] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 06/09/2015] [Accepted: 06/09/2015] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND Although esculetin, a coumarin compound, is known to induce apoptosis in human cancer cells, the effects and molecular mechanisms on the apoptosis in human malignant melanoma (HMM) cells are not well understood yet. In this study, we investigated the anti-proliferative effects of esculetin on the G361 HMM cells. METHODS We analyzed the anti-proliferative effects and molecular mechanisms of esculetin on G361 cells by a 3-(4,5-dimethylthiazol- 2-yl)-5-(3-carboxymethoxy phenyl)-2-(4-sulfophenyl)-2H-tetrazolium assay, 4',6-diamidino-2-phenylindole staining and Western blotting. RESULTS Esculetin exhibited significant anti-proliferative effects on the HMM cells in a dose-dependent manner. Interestingly, we found that esculetin induced nuclear shrinkage and fragmentation, typical apoptosis markers, by suppression of Sp1 transcription factor (Sp1). Notably, esculetin modulated Sp1 downstream target genes including p27, p21 and cyclin D1, resulted in activation of apoptosis signaling molecules such as caspase-3 and PARP in G361 HMM cells. CONCLUSIONS Our results clearly demonstrated that esculetin induced apoptosis in the HMM cells by downregulating Sp1 protein levels. Thus, we suggest that esculetin may be a potential anti-proliferative agent that induces apoptotic cell death in G361 HMM cells.
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Affiliation(s)
- Young-Joo Jeon
- Department of Dental Pharmacology, School of Dentistry and Institute of Oral Bioscience, BK21 Plus, Chonbuk National University, Jeonju, Chungnam National University, Daejeon, Korea
| | - Jeong-Yun Jang
- Department of Dental Pharmacology, School of Dentistry and Institute of Oral Bioscience, BK21 Plus, Chonbuk National University, Jeonju, Chungnam National University, Daejeon, Korea
| | - Jung-Hyun Shim
- Department of Pharmacy, College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, Muan, Chungnam National University, Daejeon, Korea
| | - Pyung Keun Myung
- College of Pharmacy, Chungnam National University, Daejeon, Korea
| | - Jung-Il Chae
- Department of Dental Pharmacology, School of Dentistry and Institute of Oral Bioscience, BK21 Plus, Chonbuk National University, Jeonju, Chungnam National University, Daejeon, Korea
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Li Y, Li Y, Li K, Ye B. Simple and Sensitive Voltammetric Determination of Esculetin Using Electrochemically Reduced Graphene Oxide Modified Electrode. J CHIN CHEM SOC-TAIP 2015. [DOI: 10.1002/jccs.201400326] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Zhu L, Lu L, Zeng S, Luo F, Dai P, Wu P, Wang Y, Liu L, Hu M, Liu Z. UDP-Glucuronosyltransferases 1A6 and 1A9 are the Major Isozymes Responsible for the 7-O-Glucuronidation of Esculetin and 4-Methylesculetin in Human Liver Microsomes. Drug Metab Dispos 2015; 43:977-83. [PMID: 25854527 DOI: 10.1124/dmd.115.063552] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 04/08/2015] [Indexed: 11/22/2022] Open
Abstract
Esculetin (6,7-dihydroxycoumarin, ET) and 4-methylesculetin (6,7-dihydroxy-4-methylcoumarin, 4-ME) are typical coumarin derivatives that are attracting considerable attention because of their wide spectrum of biologic activities, but their metabolism remains unknown. This study aimed to elucidate the in vitro UDP-glucuronosyltransferase (UGT) metabolism characteristics of ET and 4-ME. 7-O-monoglucuronide esculetin (ET-G) and 7-O-monoglucuronide 4-methylesculetin (4-ME-G) were identified by liquid chromatography-mass spectrometry (LC-MS) and (1)H-nuclear magnetic resonance ((1)HNMR) when ET or 4-ME was incubated with human liver (HLM) in the presence of UDP-glucuronic acid. Screening assays with 12 human expressed UGTs demonstrated that the formations of ET-G and 4-ME-G were almost exclusively catalyzed by UGT1A6 and UGT1A9. Phenylbutazone and carvacrol (UGT1A6 and UGT1A9 chemical inhibitors, respectively) at different concentrations (50, 100, and 200 μM) significantly inhibited the formation of glucuronidates of ET and 4-ME in HLM, UGT1A6, and UGT1A9 when the concentrations of ET and 4-ME ranged from 10 to 300 μM (P < 0.05). Clearance rates of ET in HLM, HIM, UGT1A6, and UGT1A9 were 0.54, 0.16, 0.69, and 0.14 ml/min/mg, respectively. Corresponding clearance rates values of 4-ME were 0.59, 0.03, 0.14, and 0.04 ml/min/mg, respectively. In conclusion, 7-O-monoglucuronidation by UGT1A6 and UGT1A9 was the predominant UGT metabolic pathway for both ET and 4-ME in vitro. The liver is probably the major contributor to the glucuronidation metabolism of ET and 4-ME. ET showed more rapid metabolism than 4-ME in glucuronidation.
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Affiliation(s)
- Lijun Zhu
- International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, PR China (Z.L.J., L.L.L., Z.S., L.F.F., D.P.M., W.P., W.Y., H.M., L.Z.Q.); Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas (H.M.); Department of Pharmaceutics, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, PR China (D.P.M., W.Y.); and State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR), PR China (L.L.)
| | - Linlin Lu
- International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, PR China (Z.L.J., L.L.L., Z.S., L.F.F., D.P.M., W.P., W.Y., H.M., L.Z.Q.); Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas (H.M.); Department of Pharmaceutics, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, PR China (D.P.M., W.Y.); and State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR), PR China (L.L.)
| | - Shan Zeng
- International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, PR China (Z.L.J., L.L.L., Z.S., L.F.F., D.P.M., W.P., W.Y., H.M., L.Z.Q.); Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas (H.M.); Department of Pharmaceutics, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, PR China (D.P.M., W.Y.); and State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR), PR China (L.L.)
| | - Feifei Luo
- International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, PR China (Z.L.J., L.L.L., Z.S., L.F.F., D.P.M., W.P., W.Y., H.M., L.Z.Q.); Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas (H.M.); Department of Pharmaceutics, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, PR China (D.P.M., W.Y.); and State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR), PR China (L.L.)
| | - Peimin Dai
- International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, PR China (Z.L.J., L.L.L., Z.S., L.F.F., D.P.M., W.P., W.Y., H.M., L.Z.Q.); Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas (H.M.); Department of Pharmaceutics, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, PR China (D.P.M., W.Y.); and State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR), PR China (L.L.)
| | - Peng Wu
- International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, PR China (Z.L.J., L.L.L., Z.S., L.F.F., D.P.M., W.P., W.Y., H.M., L.Z.Q.); Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas (H.M.); Department of Pharmaceutics, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, PR China (D.P.M., W.Y.); and State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR), PR China (L.L.)
| | - Ying Wang
- International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, PR China (Z.L.J., L.L.L., Z.S., L.F.F., D.P.M., W.P., W.Y., H.M., L.Z.Q.); Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas (H.M.); Department of Pharmaceutics, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, PR China (D.P.M., W.Y.); and State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR), PR China (L.L.)
| | - Liang Liu
- International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, PR China (Z.L.J., L.L.L., Z.S., L.F.F., D.P.M., W.P., W.Y., H.M., L.Z.Q.); Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas (H.M.); Department of Pharmaceutics, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, PR China (D.P.M., W.Y.); and State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR), PR China (L.L.)
| | - Ming Hu
- International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, PR China (Z.L.J., L.L.L., Z.S., L.F.F., D.P.M., W.P., W.Y., H.M., L.Z.Q.); Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas (H.M.); Department of Pharmaceutics, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, PR China (D.P.M., W.Y.); and State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR), PR China (L.L.)
| | - Zhongqiu Liu
- International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, PR China (Z.L.J., L.L.L., Z.S., L.F.F., D.P.M., W.P., W.Y., H.M., L.Z.Q.); Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas (H.M.); Department of Pharmaceutics, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, PR China (D.P.M., W.Y.); and State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR), PR China (L.L.)
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Evaluation of chemical constituents and important mechanism of pharmacological biology in dendrobium plants. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:841752. [PMID: 25945114 PMCID: PMC4402476 DOI: 10.1155/2015/841752] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 02/09/2015] [Indexed: 01/09/2023]
Abstract
Dendrobium species, commonly known as “Shihu” or “Huangcao,” represents the second largest genus of Orchidaceae, which are used commonly as tonic herbs and healthy food in many Asian countries. The aim of this paper is to review the history, chemistry, and pharmacology of different Dendrobium species on the basis of the latest academic literatures found in Google Scholar, PubMed, Sciencedirect, Scopus, and SID.
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Mei Q, Wang C, Yuan W, Zhang G. Selective methylation of kaempferol via benzylation and deacetylation of kaempferol acetates. Beilstein J Org Chem 2015; 11:288-93. [PMID: 25815082 PMCID: PMC4361994 DOI: 10.3762/bjoc.11.33] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Accepted: 02/05/2015] [Indexed: 11/23/2022] Open
Abstract
A strategy for selective mono-, di- and tri-O-methylation of kaempferol, predominantly on the basis of selective benzylation and controllable deacetylation of kaempferol acetates, was developed. From the selective deacetylation and benzylation of kaempferol tetraacetate (1), 3,4′,5,-tri-O-acetylkaempferol (2) and 7-O-benzyl-3,4′5,-tri-O-acetylkaempferol (8) were obtained, respectively. By controllable deacetylation and followed selective or direct methylation of these two intermediates, eight O-methylated kaempferols were prepared with 51–77% total yields from kaempferol.
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Affiliation(s)
- Qinggang Mei
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China ; Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China ; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chun Wang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Weicheng Yuan
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Guolin Zhang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
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Rzodkiewicz P, Gasinska E, Maslinski S, Bujalska-Zadrozny M. Antinociceptive properties of esculetin in non-inflammatory and inflammatory models of pain in rats. Clin Exp Pharmacol Physiol 2015; 42:213-9. [DOI: 10.1111/1440-1681.12346] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Revised: 11/12/2014] [Accepted: 11/18/2014] [Indexed: 11/30/2022]
Affiliation(s)
- Przemyslaw Rzodkiewicz
- Department of Biochemistry and Molecular Biology; Institute of Rheumatology; Warsaw Poland
- Department of Pharmacodynamics; Centre for Preclinical Research and Technology; Medical University of Warsaw; Warsaw Poland
| | - Emilia Gasinska
- Department of Pharmacodynamics; Centre for Preclinical Research and Technology; Medical University of Warsaw; Warsaw Poland
| | - Slawomir Maslinski
- Department of General and Experimental Pathology; Medical University of Warsaw; Warsaw Poland
| | - Magdalena Bujalska-Zadrozny
- Department of Pharmacodynamics; Centre for Preclinical Research and Technology; Medical University of Warsaw; Warsaw Poland
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37
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Kim JS, Ha TY, Ahn J, Kim S. Analysis and distribution of esculetin in plasma and tissues of rats after oral administration. Prev Nutr Food Sci 2014; 19:321-6. [PMID: 25580397 PMCID: PMC4287325 DOI: 10.3746/pnf.2014.19.4.321] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Accepted: 10/24/2014] [Indexed: 11/24/2022] Open
Abstract
In this study, we developed a method to quantify esculetin (6,7-dihydroxycoumarin) in plasma and tissues using HPLC coupled with ultraviolet detection and measured the level of esculetin in rat plasma after oral administration. The calibration curve for esculetin was linear in the range of 4.8 ng/mL to 476.2 ng/mL, with a correlation coefficient (r2) of 0.996, a limit of detection value of 33.2 ng/mL, and a limit of quantification value of 100.6 ng/mL. Recovery rates for the 95.2 ng/mL and 190.5 ng/mL samples were 95.2% and 100.3%, within-runs and 104.8% and 101.0% between-runs, respectively. The relative standard deviation was less than 7% for both runs. In the pharmacokinetic analysis, the peak plasma esculetin level was reached 5 min after administration (Cmax=173.3 ng/mL; T1/2=45 min; AUC0 ~180 min=5,167.5 ng · min/mL). At 180 min post-administration (i.e., after euthanasia), esculetin was only detectable in the liver (30.87±11.33 ng/g) and the kidney (20.29±7.02 ng/g).
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Affiliation(s)
- Ji-Sun Kim
- Department of Home Economics, College of Natural Sciences, Korea National Open University, Seoul 110-791, Korea
| | - Tae-Youl Ha
- Division of Creative Food Science for Health, Korea Food Research Institute, Gyeonggi 463-746, Korea
| | - Jiyun Ahn
- Division of Creative Food Science for Health, Korea Food Research Institute, Gyeonggi 463-746, Korea
| | - Suna Kim
- Department of Home Economics, College of Natural Sciences, Korea National Open University, Seoul 110-791, Korea
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Stamm A, Schwing K, Gerhards M. Investigation of the hydrated 7-hydroxy-4-methylcoumarin dimer by combined IR/UV spectroscopy. J Chem Phys 2014; 141:194304. [DOI: 10.1063/1.4900893] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- A. Stamm
- TU Kaiserslautern, Fachbereich Chemie and Research Center Optimas, Erwin-Schroedinger-Straße 52, D-67663 Kaiserslautern, Germany
| | - K. Schwing
- TU Kaiserslautern, Fachbereich Chemie and Research Center Optimas, Erwin-Schroedinger-Straße 52, D-67663 Kaiserslautern, Germany
| | - M. Gerhards
- TU Kaiserslautern, Fachbereich Chemie and Research Center Optimas, Erwin-Schroedinger-Straße 52, D-67663 Kaiserslautern, Germany
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39
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Molecularly imprinted polymer for pre-concentration of esculetin from tobacco followed by the UPLC analysis. Sci China Chem 2014. [DOI: 10.1007/s11426-014-5180-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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40
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CHO JINHYOUNG, SHIN JAECHEON, CHO JUNGJAE, CHOI YUNGHYUN, SHIM JUNGHYUN, CHAE JUNGIL. Esculetin (6,7-dihydroxycoumarin): A potential cancer chemopreventive agent through suppression of Sp1 in oral squamous cancer cells. Int J Oncol 2014; 46:265-71. [DOI: 10.3892/ijo.2014.2700] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Accepted: 09/10/2014] [Indexed: 11/05/2022] Open
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Deepak M, Kumar PU, Nitha B, Balachandran I, Rema Shree AB. Quality parameters, fatty acid profiling and estimation of umbelliferone in grahaṇimihira tailam: An ayurvedic oil preparation. Anc Sci Life 2014; 33:10-4. [PMID: 25161324 PMCID: PMC4140015 DOI: 10.4103/0257-7941.134557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background: Grahaṇimihira tailam is an unexplored ayurvedic oil preparation which consists of 34 ingredients. The efficacy of this traditional ayurvedic medicine is undisputable. Proper clinical standardization of this formulation will go a long way in securing greater recognition for it. The main objective of this study was to develop standardization parameters for the formulation in a multidisciplinary way. Materials and Methods: A simple and efficient method for the quantification of umbelliferone by high performance thin layer chromatography was developed and validated. Presence of the major fatty acids and their percentage were assessed by using gas chromatography-mass spectrometry (GC-MS). Various physio-chemical parameters, microbiological load, aflatoxins and mineral oil were also evaluated. Spread plate method was used for checking microbial contamination. Results: The results were validated as per standard protocols. Quantitative estimation revealed the percentage of umbelliferone to be in the range of 0.88-0.98 (w/w). GC-MS analysis of sample led to the identification of 14 fatty acids, in which linoleic acid was obtained as the major fatty acid. Microbes, aflatoxins and mineral oils were found to be absent in the tailam. Conclusion: The results which give the quantitative estimates of various physico-chemical parameters can be adopted to establish new standards for analysis of batch-to-batch variation and this data will facilitate shelf life studies in the future.
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Affiliation(s)
- M Deepak
- Drug Standardisation Division, Centre for Medicinal Plants Research, Arya Vaidya Sala, Kottakkal, Malappuram, Kerala, India
| | - Prakash U Kumar
- Drug Standardisation Division, Centre for Medicinal Plants Research, Arya Vaidya Sala, Kottakkal, Malappuram, Kerala, India
| | - B Nitha
- Drug Standardisation Division, Centre for Medicinal Plants Research, Arya Vaidya Sala, Kottakkal, Malappuram, Kerala, India
| | - Indira Balachandran
- Drug Standardisation Division, Centre for Medicinal Plants Research, Arya Vaidya Sala, Kottakkal, Malappuram, Kerala, India
| | - A B Rema Shree
- Drug Standardisation Division, Centre for Medicinal Plants Research, Arya Vaidya Sala, Kottakkal, Malappuram, Kerala, India
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Hung HY, Kuo SC. Recent Studies and Progression of Yin Chen Hao ( Yīn Chén Hāo), a Long-term Used Traditional Chinese Medicine. J Tradit Complement Med 2014; 3:2-6. [PMID: 24716150 PMCID: PMC3924980 DOI: 10.4103/2225-4110.106533] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Yin Chen Hao (Artemisia capillaris Thunb; 茵陳蒿 Yīn Chén Hāo) is a traditional Chinese medicine for treating hepatic disorders. This review provides recent pharmacological studies of Yin Chen Hao as well as some chemical constituents isolated from Yin Chen.
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Affiliation(s)
- Hsin-Yi Hung
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, Taiwan
| | - Sheng-Chu Kuo
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, Taiwan. ; Graduate Institute of Pharmaceutical Chemistry, China Medical University, Taichung, Taiwan
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43
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Capillarisin inhibits constitutive and inducible STAT3 activation through induction of SHP-1 and SHP-2 tyrosine phosphatases. Cancer Lett 2013; 345:140-8. [PMID: 24333736 DOI: 10.1016/j.canlet.2013.12.008] [Citation(s) in RCA: 125] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Revised: 11/29/2013] [Accepted: 12/02/2013] [Indexed: 11/21/2022]
Abstract
Signal transducers and activators of transcription (STAT)-3 is a latent cytosolic transcription factor that has been closely associated with survival, proliferation, chemoresistance, and metastasis of tumor cells. Whether the anti-proliferative, pro-apoptotic, and anti-metastatic effects of capillarisin (CPS), derived from Artemisia capillaris (Compositae), are linked to its capability to inhibit STAT3 activation was investigated. We found that CPS specifically inhibited both constitutive and inducible STAT3 activation at tyrosine residue 705 but not at serine residue 727 in human multiple myeloma cells. Besides the inhibition of STAT3 phosphorylation, CPS also abrogated STAT3 constitutive activity and nuclear translocation. The suppression of STAT3 was mediated through the inhibition of activation of upstream JAK1, JAK2, and c-Src kinases. Treatment with the protein tyrosine phosphatase (PTP) inhibitor pervanadate treatment reversed the CPS-induced down-regulation of JAK1/2 and STAT3, thereby suggesting the involvement of a PTP. Indeed, knockdown of the SHP-1 and SHP-2 genes by small interfering RNA suppressed the ability of CPS to inhibit JAK1 and STAT3 activation, suggesting the critical role of both SHP-1 and SHP-2 in its possible mechanism of action. CPS downregulated the expression of STAT3-regulated antiapoptotic and proliferative gene products; and this correlated with suppression of cell viability, the accumulation of cells in sub-G1 phase of cell cycle and induction of apoptosis. Moreover, CPS potentiated bortezomib-induced apoptotic effects in MM cells, and this correlated with down-regulation of various gene products that mediate cell proliferation (Cyclin D1 and COX-2), cell survival (Bcl-2, Bcl-xl, IAP1, IAP2, and Survivin), invasion (MMP-9), and angiogenesis (VEGF). Thus, overall, our results suggest that CPS is a novel blocker of STAT3 activation and thus may have a potential in negative regulation of growth, metastasis, and chemoresistance of tumor cells.
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Veeresham C, Rama Rao A, Asres K. Aldose reductase inhibitors of plant origin. Phytother Res 2013; 28:317-33. [PMID: 23674239 DOI: 10.1002/ptr.5000] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Revised: 02/01/2013] [Accepted: 03/22/2013] [Indexed: 12/17/2022]
Abstract
Diabetic complications are attributed to hyperglycaemic condition which is in turn associated with the polyol pathway and advanced glycation end products. Aldose reductase (AR) is the principal enzyme of polyol pathway which plays a vital role in the development of diabetic complications. AR inhibitory activity can be screened by both in vitro and in vivo methods. In vitro assays for AR enzyme are further classified on the basis of the source of enzyme such as rat lens, rat kidney, cataracted human eye lens, bovine eyes and human recombinant AR enzymes, whereas the in vivo model is based on the determination of lens galactitol levels. A number of synthetic AR inhibitors (ARIs) including tolrestat and sorbinil have been developed, but all of these suffer from drawbacks such as poor permeation and safety issues. Therefore, pharmaceutical companies and many researchers have been carrying out research to find new, potent and safe ARIs from natural sources. Thus, many naturally occurring compounds have been reported to have AR inhibitory activity. The present review attempts to highlight phytochemicals and plant extracts with potential AR inhibitory activity. It also summarizes the classes of compounds which have proven AR inhibitory activity. Phytochemicals such as quercetin, kaempferol and ellagic acid are found to be the most promising ARIs. The exhaustive literature presented in this article clearly indicates the role of plant extracts and phytochemicals as potential ARIs.
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Affiliation(s)
- Ciddi Veeresham
- University College of Pharmaceutical Sciences, Kakatiya University, Warangal, AP, 506009, India
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Nurul Islam M, Jung HA, Sohn HS, Kim HM, Choi JS. Potent α-glucosidase and protein tyrosine phosphatase 1B inhibitors from Artemisia capillaris. Arch Pharm Res 2013; 36:542-52. [DOI: 10.1007/s12272-013-0069-7] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Accepted: 01/09/2013] [Indexed: 10/27/2022]
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Han S, Lee JH, Kim C, Nam D, Chung WS, Lee SG, Ahn KS, Cho SK, Cho M, Ahn KS. Capillarisin inhibits iNOS, COX-2 expression, and proinflammatory cytokines in LPS-induced RAW 264.7 macrophages via the suppression of ERK, JNK, and NF-κB activation. Immunopharmacol Immunotoxicol 2012; 35:34-42. [PMID: 23131135 DOI: 10.3109/08923973.2012.736522] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The aerial parts of Artemisia capillaris (Compositae) have been used in traditional Korean medicine as a cholagogic, antipyretic, anti-inflammatory, and diuretic purposes. In our previous study, ethanolic extracts of the plant demonstrated a marked anti-inflammatory effect in lipopolysaccharide (LPS)-stimulated RAW 264.7 cells (J. Korean Soc. Appl. Biol. Chem., 2010, 53, 275-282). In the present study, capillarisin (CPS), a flavone, main constituent of A. capillaris, was examined for its anti-inflammatory activity in the cells. We found that CPS highly suppressed LPS-induced nitric oxide (NO) without exerting cytotoxic effects on RAW 264.7 cells. CPS inhibited the expression of LPS-induced inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) protein and their mRNA in a dose-dependent manner. Also, tumor necrosis factor (TNF)-α, interleukin (IL)-6, IL-1β, and prostaglandin E(2) (PGE(2)) secretion were decreased by CPS in LPS-stimulated macrophages. As a result, CPS inhibited proinflammatory cytokines, iNOS, and COX-2, which is attributed to the suppression of LPS-induced ERK, JNK, and nuclear factor-κB (NF-κB) activation. Therefore, we demonstrate here that CPS potentially inhibits the biomarkers related to inflammation through the abrogation of ERK, JNK, and NF-κB p65 activation, and it may be a potential therapeutic candidate for the treatment of inflammatory diseases.
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Affiliation(s)
- Suckbae Han
- College of Oriental Medicine and Institute of Oriental Medicine, Kyung Hee University, Seoul, Republic of Korea
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Shindo S, Tomatsu M, Nakda T, Shibamoto N, Tachibana T, Mori K. Inhibition of Aldose Reductase Activity by Extracts from Hops. JOURNAL OF THE INSTITUTE OF BREWING 2012. [DOI: 10.1002/j.2050-0416.2002.tb00559.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Prabakaran D, Ashokkumar N. Antihyperglycemic effect of esculetin modulated carbohydrate metabolic enzymes activities in streptozotocin induced diabetic rats. J Funct Foods 2012. [DOI: 10.1016/j.jff.2012.05.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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Choi WS, Jang DY, Nam SW, Park BS, Lee HS, Lee SE. Antiulcerogenic activity of scoparone on HCl/ethanol-induced gastritis in rats. ACTA ACUST UNITED AC 2012. [DOI: 10.1007/s13765-012-1023-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Kim HK, Choi BR, Bak YO, Zhao C, Lee SW, Jeon JH, So I, Park JK. The role of capillarisin from Artemisia capillaris on penile erection. Phytother Res 2011; 26:800-5. [PMID: 22072532 DOI: 10.1002/ptr.3635] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2011] [Revised: 08/13/2011] [Indexed: 11/09/2022]
Abstract
The objective of this study was to evaluate the effect and mechanism of capillarisin from Artemisia capillaris (A. capillaris) on rabbit penile corpus cavernosum (PCC). The pre-contracted New Zealand White rabbit (2.5-3.0 kg) penis with phenylephrine (Phe; 10⁻⁵ M) was treated with various concentrations of ethanol extract of A. capillaris (0.1, 0.5, 1, and 2 mg/mL) and capillarisin, the active component of A. capillaris (10⁻⁷, 10⁻⁶, 10⁻⁵ and 10⁻⁴ M). Capillarisin was also applied to PCC tissues contracted with Phe, which were pre-incubated with phosphodiesterase type 5 inhibitors (PDE5 Is). Cyclic nucleotides in the perfusate were measured by radioimmunoassay. The tissues were pre-incubated with Nω nitro-l-arginine-methyl ester (L-NAME, 10⁻³ M) and 1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one (ODQ, 10⁻⁵ M) to block nitric oxide (NO) synthase and guanylate cyclase, respectively. Capillarisin induced penile relaxation and enhanced PDE5 Is-induced relaxation. Capillarisin increased cGMP and cAMP in the perfusate. The application of capillarisin on PCC pre-treated with L-NAME and ODQ significantly inhibited the relaxation. Capillarisin exerts the relaxing effect on PCC by activating the NO-cGMP and adenylyl cAMP signaling pathways and may become an alternative medicine for patients who want to use natural products to improve erectile function or do not completely respond to PDE5 Is.
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Affiliation(s)
- Hye Kyung Kim
- Department of Urology of Medical School and Institute for Medical Sciences, Chonbuk National University, and Research Institute and CTC of Medical Device of Chonbuk National University Hospital, Jeonju 561-712, Republic of Korea
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