Phytochemicals
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Antiviral Activities of Oleanolic Acid and Its Analogues
molecules Review Antiviral Activities of Oleanolic Acid and Its Analogues Vuyolwethu Khwaza, Opeoluwa O. Oyedeji and Blessing A. Aderibigbe * Department of Chemistry, University of Fort Hare, Alice Campus, Alice 5700, Eastern Cape, South Africa; [email protected] (V.K.); [email protected] (O.O.O) * Correspondence: [email protected]; Tel.: +27-406022266; Fax: +08-67301846 Academic Editors: Patrizia Ciminiello, Alfonso Mangoni, Marialuisa Menna and Orazio Taglialatela-Scafati Received: 27 July 2018; Accepted: 5 September 2018; Published: 9 September 2018 Abstract: Viral diseases, such as human immune deficiency virus (HIV), influenza, hepatitis, and herpes, are the leading causes of human death in the world. The shortage of effective vaccines or therapeutics for the prevention and treatment of the numerous viral infections, and the great increase in the number of new drug-resistant viruses, indicate that there is a great need for the development of novel and potent antiviral drugs. Natural products are one of the most valuable sources for drug discovery. Most natural triterpenoids, such as oleanolic acid (OA), possess notable antiviral activity. Therefore, it is important to validate how plant isolates, such as OA and its analogues, can improve and produce potent drugs for the treatment of viral disease. This article reports a review of the analogues of oleanolic acid and their selected pathogenic antiviral activities, which include HIV, the influenza virus, hepatitis B and C viruses, and herpes viruses. Keywords: HIV; influenza virus; HBV/HCV; natural product; triterpenoids; medicinal plant 1. Introduction Viral diseases remain a major problem for humankind. It has been reported in some reviews that there is an increase in the number of viral diseases responsible for death and morbidity around the world [1,2]. -
Sephadex® LH-20, Isolation, and Purification of Flavonoids from Plant
molecules Review Sephadex® LH-20, Isolation, and Purification of Flavonoids from Plant Species: A Comprehensive Review Javad Mottaghipisheh 1,* and Marcello Iriti 2,* 1 Department of Pharmacognosy, Faculty of Pharmacy, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary 2 Department of Agricultural and Environmental Sciences, Milan State University, via G. Celoria 2, 20133 Milan, Italy * Correspondence: [email protected] (J.M.); [email protected] (M.I.); Tel.: +36-60702756066 (J.M.); +39-0250316766 (M.I.) Academic Editor: Francesco Cacciola Received: 20 August 2020; Accepted: 8 September 2020; Published: 10 September 2020 Abstract: Flavonoids are considered one of the most diverse phenolic compounds possessing several valuable health benefits. The present study aimed at gathering all correlated reports, in which Sephadex® LH-20 (SLH) has been utilized as the final step to isolate or purify of flavonoid derivatives among all plant families. Overall, 189 flavonoids have been documented, while the majority were identified from the Asteraceae, Moraceae, and Poaceae families. Application of SLH has led to isolate 79 flavonols, 63 flavones, and 18 flavanones. Homoisoflavanoids, and proanthocyanidins have only been isolated from the Asparagaceae and Lauraceae families, respectively, while the Asteraceae was the richest in flavones possessing 22 derivatives. Six flavones, four flavonols, three homoisoflavonoids, one flavanone, a flavanol, and an isoflavanol have been isolated as the new secondary metabolites. This technique has been able to isolate quercetin from 19 plant species, along with its 31 derivatives. Pure methanol and in combination with water, chloroform, and dichloromethane have generally been used as eluents. This comprehensive review provides significant information regarding to remarkably use of SLH in isolation and purification of flavonoids from all the plant families; thus, it might be considered an appreciable guideline for further phytochemical investigation of these compounds. -
Identification and Functional Characterization of the First Two
Identification and functional characterization of the first two aromatic prenyltransferases implicated in the biosynthesis of furanocoumarins and prenylated coumarins in two plant families: Rutaceae and Apiaceae Fazeelat Karamat To cite this version: Fazeelat Karamat. Identification and functional characterization of the first two aromatic prenyl- transferases implicated in the biosynthesis of furanocoumarins and prenylated coumarins in two plant families: Rutaceae and Apiaceae. Agronomy. Université de Lorraine, 2013. English. NNT : 2013LORR0029. tel-01749560 HAL Id: tel-01749560 https://hal.univ-lorraine.fr/tel-01749560 Submitted on 29 Mar 2018 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. AVERTISSEMENT Ce document est le fruit d'un long travail approuvé par le jury de soutenance et mis à disposition de l'ensemble de la communauté universitaire élargie. Il est soumis à la propriété intellectuelle de l'auteur. Ceci implique une obligation de citation et de référencement lors de l’utilisation de ce document. D'autre part, toute contrefaçon, plagiat, -
Simultaneous Determination of Isoflavones, Saponins And
September 2013 Regular Article Chem. Pharm. Bull. 61(9) 941–951 (2013) 941 Simultaneous Determination of Isoflavones, Saponins and Flavones in Flos Puerariae by Ultra Performance Liquid Chromatography Coupled with Quadrupole Time-of-Flight Mass Spectrometry Jing Lu,a Yuanyuan Xie,a Yao Tan, a Jialin Qu,a Hisashi Matsuda,b Masayuki Yoshikawa,b and Dan Yuan*,a a School of Traditional Chinese Medicine, Shenyang Pharmaceutical University; 103 Wenhua Rd., Shenyang 110016, P.R. China: and b Department of Pharmacognosy, Kyoto Pharmaceutical University; Shichono-cho, Misasagi, Yamashina-ku, Kyoto 607-8412, Japan. Received April 7, 2013; accepted June 6, 2013; advance publication released online June 12, 2013 An ultra performance liquid chromatography (UPLC) coupled with quadrupole time-of-flight mass spectrometry (QTOF/MS) method is established for the rapid analysis of isoflavones, saponins and flavones in 16 samples originated from the flowers of Pueraria lobata and P. thomsonii. A total of 25 isoflavones, 13 saponins and 3 flavones were identified by co-chromatography of sample extract with authentic standards and comparing the retention time, UV spectra, characteristic molecular ions and fragment ions with those of authentic standards, or tentatively identified by MS/MS determination along with Mass Fragment software. Moreover, the method was validated for the simultaneous quantification of 29 components. The samples from two Pueraria flowers significantly differed in the quality and quantity of isoflavones, saponins and flavones, which allows the possibility of showing their chemical distinctness, and may be useful in their standardiza- tion and quality control. Dataset obtained from UPLC-MS was processed with principal component analysis (PCA) and orthogonal partial least squared discriminant analysis (OPLS-DA) to holistically compare the dif- ference between both Pueraria flowers. -
Analytical Reference Standards
Cerilliant Quality ISO GUIDE 34 ISO/IEC 17025 ISO 90 01:2 00 8 GM P/ GL P Analytical Reference Standards 2 011 Analytical Reference Standards 20 811 PALOMA DRIVE, SUITE A, ROUND ROCK, TEXAS 78665, USA 11 PHONE 800/848-7837 | 512/238-9974 | FAX 800/654-1458 | 512/238-9129 | www.cerilliant.com company overview about cerilliant Cerilliant is an ISO Guide 34 and ISO 17025 accredited company dedicated to producing and providing high quality Certified Reference Standards and Certified Spiking SolutionsTM. We serve a diverse group of customers including private and public laboratories, research institutes, instrument manufacturers and pharmaceutical concerns – organizations that require materials of the highest quality, whether they’re conducing clinical or forensic testing, environmental analysis, pharmaceutical research, or developing new testing equipment. But we do more than just conduct science on their behalf. We make science smarter. Our team of experts includes numerous PhDs and advance-degreed specialists in science, manufacturing, and quality control, all of whom have a passion for the work they do, thrive in our collaborative atmosphere which values innovative thinking, and approach each day committed to delivering products and service second to none. At Cerilliant, we believe good chemistry is more than just a process in the lab. It’s also about creating partnerships that anticipate the needs of our clients and provide the catalyst for their success. to place an order or for customer service WEBSITE: www.cerilliant.com E-MAIL: [email protected] PHONE (8 A.M.–5 P.M. CT): 800/848-7837 | 512/238-9974 FAX: 800/654-1458 | 512/238-9129 ADDRESS: 811 PALOMA DRIVE, SUITE A ROUND ROCK, TEXAS 78665, USA © 2010 Cerilliant Corporation. -
(12) United States Patent (10) Patent No.: US 9.271,949 B2 Hazan Et Al
US00927 1949B2 (12) United States Patent (10) Patent No.: US 9.271,949 B2 Hazan et al. (45) Date of Patent: Mar. 1, 2016 (54) COMPOSITIONS COMPRISING ACIDIC 2005/023874O A1 10/2005 Fotinos EXTRACTS OF MASTC GUM 2009/004.8205 A1 2/2009 Meyer 2014/0294928 A1 10/2014 Hazan et al. (75) Inventors: Zadik Hazan, Zichron Yaakov (IL); Andre C. B. Lucassen, Rehovot (IL) FOREIGN PATENT DOCUMENTS CN 1173134 A 2, 1998 (73) Assignee: REGENERA PHARMA LTD., EP 152O585 4/2005 Rehovot (IL) GR 1.003541 3, 2001 GR 10O3868 4/2002 JP 2007135493 6, 2007 (*) Notice: Subject to any disclaimer, the term of this WO 01.21212 A1 3, 2001 patent is extended or adjusted under 35 WO O3,O92712 11, 2003 U.S.C. 154(b) by 0 days. WO O3,O97212 11, 2003 WO 2005/094837 10/2005 (21) Appl. No.: 13/821,194 WO 2005/112967 12/2005 WO 2006/OO3659 1, 2006 WO 20080243.74 A2 2, 2008 (22) PCT Filed: Sep. 7, 2011 WO 2010030082 A2 3, 2010 WO 2010/100650 9, 2010 (86). PCT No.: PCT/L2O11AOOO724 WO 2010/100651 9, 2010 S371 (c)(1), (2), (4) Date: Mar. 6, 2013 OTHER PUBLICATIONS (87) PCT Pub. No.: WO2012/032523 CAS Registry record for “Masticadienoic Acid' (retrieved Aug. 2014).* PCT Pub. Date: Mar. 15, 2012 Al-Habbal, M.J., Al-Habbal, Z, Huwez, F.U. A double-blind con trolled clinical trial of mastic and placebo in the treatment of (65) Prior Publication Data duodenal ulcer, Clin Exp Pharmacol Physiol, 1984, 11. -
Cytotoxic Prenyl and Geranyl Coumarins from the Stem Bark of Casi- Miroa Edulis
Send Orders for Reprints to [email protected] Letters in Organic Chemistry, 2020, 17, 000-000 1 RESEARCH ARTICLE Cytotoxic Prenyl and Geranyl Coumarins from the Stem Bark of Casi- miroa edulis Khun Nay Win Tun1,2, Nanik Siti Aminah3,*, Alfinda Novi Kristanti3, Rico Ramadhan3 and Yoshiaki Takaya4 1Natural Science, Faculty of Science and Technology, Universitas Airlangga, Surabaya, Indonesia; 2Department of Chemistry, Taunggyi University, Taunggyi, Myanmar; 3Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Surabaya, Indonesia; 4Faculty of Pharmacy, Universitas Meijo, 150 Yagotoyama, Tempaku, Nagoya, 468-8503 Japan Abstract: Phytochemical investigation of the methanolic extract of the stem bark of Casimiroa edulis afforded four coumarins. Various spectroscopic experiments were used to characterize the isolated A R T I C L E H I S T O R Y coumarins. The structures were identified as auraptene (K-1), suberosin (K-2), 5-geranyloxypsoralen (bergamottin) (K-3), and 8-geranyloxypsoralen (K-4), based on the chemical and spectral analysis. Received: June 12, 2019 Revised: September 15, 2019 Among these compounds, suberosin (K-2) and 5-geranyloxypsoralen (bergamottin) (K-3) were isolat- Accepted: October 04, 2019 ed for the first time from this genus, and auraptene (K-1) was isolated from this plant for the first time. DOI: Cytotoxicity of pure compound K-4 and sub-fraction MD-3 was evaluated against HeLa and T47D cell 10.2174/1570178616666191019121437 lines and moderate activity was found with an IC50 value in the range 17.4 to 72.33 µg/mL. Keywords: Casimiroa edulis, coumarins, HeLa, spectroscopic experiments, stem bark, T47D. 1. INTRODUCTION imperatorin, xanthotoxol, 8-hydroxy-5-methoxypsoralen, 8-[(6,7-dihydroxy-3,7-dimethyl-2-octen-1-yl)oxy]-5-methoxy- Nature is a good source of potential chemotherapeutic psoralen, 8-[(4-hydroxy-3-methyl-2-buten-1-yl)oxy]psoralen, drugs [1]. -
Aggressive Mammary Carcinoma Progression in Nrf2
Becks et al. BMC Cancer 2010, 10:540 http://www.biomedcentral.com/1471-2407/10/540 RESEARCH ARTICLE Open Access Aggressive mammary carcinoma progression in Nrf2 knockout mice treated with 7,12- dimethylbenz[a]anthracene Lisa Becks1,2, Misty Prince1,2, Hannah Burson1,2, Christopher Christophe1,2, Mason Broadway1,2, Ken Itoh3, Masayuki Yamamoto4, Michael Mathis2,5, Elysse Orchard1,6, Runhua Shi2,7, Jerry McLarty2,7, Kevin Pruitt2,8, Songlin Zhang2,9, Heather E Kleiner-Hancock1,2* Abstract Background: Activation of nuclear factor erythroid 2-related factor (Nrf2), which belongs to the basic leucine zipper transcription factor family, is a strategy for cancer chemopreventive phytochemicals. It is an important regulator of genes induced by oxidative stress, such as glutathione S-transferases, heme oxygenase-1 and peroxiredoxin 1, by activating the antioxidant response element (ARE). We hypothesized that (1) the citrus coumarin auraptene may suppress premalignant mammary lesions via activation of Nrf2/ARE, and (2) that Nrf2 knockout (KO) mice would be more susceptible to mammary carcinogenesis. Methods: Premalignant lesions and mammary carcinomas were induced by medroxyprogesterone acetate and 7,12-dimethylbenz[a]anthracene treatment. The 10-week pre-malignant study was performed in which 8 groups of 10 each female wild-type (WT) and KO mice were fed either control diet or diets containing auraptene (500 ppm). A carcinogenesis study was also conducted in KO vs. WT mice (n = 30-34). Comparisons between groups were evaluated using ANOVA and Kaplan-Meier Survival statistics, and the Mann-Whitney U-test. Results: All mice treated with carcinogen exhibited premalignant lesions but there were no differences by genotype or diet. -
(12) United States Patent (10) Patent No.: US 7,615,546 B2 Gupta (45) Date of Patent: Nov
USOO761.5546B2 (12) United States Patent (10) Patent No.: US 7,615,546 B2 Gupta (45) Date of Patent: Nov. 10, 2009 (54) TOPICAL DELIVERY SYSTEM FOR 6,407,085 B1* 6/2002 Kief ........................... 514, 182 PHYTOSTEROLS * cited by examiner (75) Inventor: Shyam K Gupta, Scottsdale, AZ (US) Primary Examiner Shaojia Anna Jiang Assistant Examiner Eric S Olson (73) Assignee: BioDerm Research, Scottsdale, AZ (US) (57) ABSTRACT (*) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 This invention relates to certain Sugaresters of phytosterols of U.S.C. 154(b) by 0 days. formula (I). These esters are useful for topical application, and for the treatment of skin condition, including age spots, (21) Appl. No.: 12/210,266 acne, loss of cellular antioxidants, collagen loss, loss of skin pliability, loss of skin Suppleness, skin wrinkles including (22) Filed: Sep.15, 2008 fine lines, oxidation, damage from radiation, malfunction of matrix metalloproteases, malfunction of tyrosinases, damage (65) Prior Publication Data from free radicals, damage from UV, dry skin, Xerosis, ich US 2009/0042846A1 Feb. 12, 2009 thyosis, dandruff, brownish spots, keratoses, melasma, len tigines, liver spots, pigmented spots, dark circles under the Related U.S. Application Data eyes, skin pigmentation including darkened skin, blemishes, (63) Continuation-in-part of application No. 1 1/161,856, oily skin, warts, eczema, pruritic skin, psoriasis, inflamma filed on Aug. 19, 2005, now abandoned, and a continu tory dermatoses, topical inflammation, disturbed keratiniza ation-in-part of application No. 12/139,659, filed on tion, skin changes associated with aging, nail or skin requir ing cleansers, conditioning or treatment, and hair or scalp Jun. -
Structural Requirements of Flavonoids and Related Compounds for Aldose Reductase Inhibitory Activity
788 Chem. Pharm. Bull. 50(6) 788—795 (2002) Vol. 50, No. 6 Structural Requirements of Flavonoids and Related Compounds for Aldose Reductase Inhibitory Activity Hisashi MATSUDA, Toshio MORIKAWA, Iwao TOGUCHIDA, and Masayuki YOSHIKAWA* Kyoto Pharmaceutical University; Misasagi, Yamashina-ku, Kyoto 607–8412, Japan. Received January 15, 2002; accepted February 13, 2002 The methanolic extracts of several natural medicines and medicinal foodstuffs were found to show an in- hibitory effect on rat lens aldose reductase. In most cases, flavonoids were isolated as the active constituents by 5 bioassay-guided separation, and among them, quercitrin (IC50 0.15 mM), guaijaverin (0.18 mM), and desmanthin- 1 (0.082 mM) exhibited potent inhibitory activity. Desmanthin-1 showed the most potent activity, which was equiv- alent to that of a commercial synthetic aldose reductase inhibitor, epalrestat (0.072 mM). In order to clarify the structural requirements of flavonoids for aldose reductase inhibitory activity, various flavonoids and related com- pounds were examined. The results suggested the following structural requirements of flavonoid: 1) the flavones and flavonols having the 7-hydroxyl and/or catechol moiety at the B ring (the 39,49-dihydroxyl moiety) exhibit the strong activity; 2) the 5-hydroxyl moiety does not affect the activity; 3) the 3-hydroxyl and 7-O-glucosyl moieties reduce the activity; 4) the 2–3 double bond enhances the activity; 5) the flavones and flavonols having the cate- chol moiety at the B ring exhibit stronger activity than those having the pyrogallol moiety (the 39,49,59-trihy- droxyl moiety). Key words aldose reductase inhibitor; flavonoid; structural requirement; desmanthin-1; quercitrin; guaijaverin Aldose reductase as a key enzyme in the polyol pathway is aerial parts of Centella asiatica (Umbelliferae),11) and the reported to catalyze the reduction of glucose to sorbitol. -
(12) Patent Application Publication (10) Pub. No.: US 2009/0269772 A1 Califano Et Al
US 20090269772A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2009/0269772 A1 Califano et al. (43) Pub. Date: Oct. 29, 2009 (54) SYSTEMS AND METHODS FOR Publication Classification IDENTIFYING COMBINATIONS OF (51) Int. Cl. COMPOUNDS OF THERAPEUTIC INTEREST CI2O I/68 (2006.01) CI2O 1/02 (2006.01) (76) Inventors: Andrea Califano, New York, NY G06N 5/02 (2006.01) (US); Riccardo Dalla-Favera, New (52) U.S. Cl. ........... 435/6: 435/29: 706/54; 707/E17.014 York, NY (US); Owen A. (57) ABSTRACT O'Connor, New York, NY (US) Systems, methods, and apparatus for searching for a combi nation of compounds of therapeutic interest are provided. Correspondence Address: Cell-based assays are performed, each cell-based assay JONES DAY exposing a different sample of cells to a different compound 222 EAST 41ST ST in a plurality of compounds. From the cell-based assays, a NEW YORK, NY 10017 (US) Subset of the tested compounds is selected. For each respec tive compound in the Subset, a molecular abundance profile from cells exposed to the respective compound is measured. (21) Appl. No.: 12/432,579 Targets of transcription factors and post-translational modu lators of transcription factor activity are inferred from the (22) Filed: Apr. 29, 2009 molecular abundance profile data using information theoretic measures. This data is used to construct an interaction net Related U.S. Application Data work. Variances in edges in the interaction network are used to determine the drug activity profile of compounds in the (60) Provisional application No. 61/048.875, filed on Apr.