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Antibiotic Additive and Synergistic Action of Rutin, Morin and Quercetin Against Methicillin Resistant Staphylococcus Aureus
Amin et al. BMC Complementary and Alternative Medicine (2015) 15:59 DOI 10.1186/s12906-015-0580-0 RESEARCH ARTICLE Open Access Antibiotic additive and synergistic action of rutin, morin and quercetin against methicillin resistant Staphylococcus aureus Muhammad Usman Amin1†, Muhammad Khurram2*†, Baharullah Khattak1† and Jafar Khan1† Abstract Background: To determine the effect of flavonoids in conjunction with antibiotics in methicillin resistant Staphylococcus aureus (MRSA) a study was designed. The flavonoids included Rutin, Morin, Qurecetin while antibiotics included ampicillin, amoxicillin, cefixime, ceftriaxone, vancomycin, methicillin, cephradine, erythromycin, imipenem, sulphamethoxazole/trimethoprim, ciprofloxacin and levolfloxacin. Test antibiotics were mostly found resistant with only Imipenem and Erythromycin found to be sensitive against 100 MRSA clinical isolates and S. aureus (ATCC 43300). The flavonoids were tested alone and also in different combinations with selected antibiotics. Methods: Antibiotics and flavonoids sensitivity assays were carried using disk diffusion method. The combinations found to be effective were sifted through MIC assays by broth macro dilution method. Exact MICs were determined using an incremental increase approach. Fractional inhibitory concentration indices (FICI) were determined to evaluate relationship between antibiotics and flavonoids is synergistic or additive. Potassium release was measured to determine the effect of antibiotic-flavonoids combinations on the cytoplasmic membrane of test bacteria. Results: Antibiotic and flavonoids screening assays indicated activity of flavanoids against test bacteria. The inhibitory zones increased when test flavonoids were combined with antibiotics facing resistance. MICs of test antibiotics and flavonoids reduced when they were combined. Quercetin was the most effective flavonoid (MIC 260 μg/ml) while morin + rutin + quercetin combination proved most efficient with MIC of 280 + 280 + 140 μg/ml. -
(Hordeum Vulgare L.) Seedlings Via Their
Ra et al. Appl Biol Chem (2020) 63:38 https://doi.org/10.1186/s13765-020-00519-9 NOTE Open Access Evaluation of antihypertensive polyphenols of barley (Hordeum vulgare L.) seedlings via their efects on angiotensin-converting enzyme (ACE) inhibition Ji‑Eun Ra1, So‑Yeun Woo2, Hui Jin3, Mi Ja Lee2, Hyun Young Kim2, Hyeonmi Ham2, Ill‑Min Chung1 and Woo Duck Seo2* Abstract Angiotensin‑converting enzyme (ACE) is an important therapeutic target in the regulation of high blood pressure. This study was conducted to investigate the alterations in blood pressure associated with ACE inhibition activity of the polyphenols (1–10), including 3‑O‑feruloylquinic acid (1), lutonarin (2), saponarin (3), isoorientin (4), orientin (5), isovitexin (6), isoorientin‑7‑O‑[6‑sinapoyl]‑glucoside (7), isoorientin‑7‑O‑[6‑feruloyl]‑glucoside (8), isovitexin‑7‑O‑ [6‑sinapoyl]‑glucoside (9), and isovitexin‑7‑O‑[6‑feruloyl]‑glucoside (10), isolated from barley seedlings (BS). All the isolated polyphenols exhibited comparable IC50 values of ACE inhibition activity (7.3–43.8 µM) with quercetin (25.2 0.2 µM) as a positive control, and their inhibition kinetic models were identifed as noncompetitive inhibition. ± Especially, compound 4 was revealed to be an outstanding ACE inhibitor (IC50 7.3 0.1 µM, Ki 6.6 0.1 µM). Based on the compound structure–activity relationships, the free hydroxyl groups of =favone± ‑moieties =and glucose± connec‑ tions at the A ring of the favone moieties were important factors for inhibition of ACE. The alcohol extract of BS also 1 demonstrated potent ACE inhibition activity (66.5% 2.2% at 5000 µg mL− ). -
Characterization of C-Glycosidic Flavonoids from Brazilian Passiflora Species Using Lc/Ms Exact Mass Measurement
CHARACTERIZATION OF C-GLYCOSIDIC FLAVONOIDS FROM BRAZILIAN PASSIFLORA SPECIES USING LC/MS EXACT MASS MEASUREMENT 1 2 2 NOTE M. McCullagh , C.A.M. Pereira , J.H. Yariwake 1Waters Corporation, Floats Road, Wythenshawe, Manchester, M23 9LZ, UK 2Universidade de São Paulo, Instituto de Química de São Carlos, São Carlos, SP, Brazil OVERVIEW This application note describes the analysis of extracts Recently issues have arisen with Kava Kava, a natural from Passiflora species using real time centroid exact health product, which is used for its anti-depressant and mass measurement. The system used comprised of an anti-anxiety properties. Investigations into the safety of LCT™ orthogonal acceleration (oa-TOF) time of flight Kava have taken place within several European mass spectrometer with LockSpray™ source, Waters® countries, including Germany, U.K., Switzerland, 2996 PDA and Waters Alliance® HT 2795 France, Spain and parts of Scandinavia. In Switzerland Separations Module. and Germany cases of liver damage were reported. In Application the US the FDA has investigated Kava's safety, where INTRODUCTION as in Canada the public were advised not to take the EU Directive 2001/83/EC will regulate and produce a supplement until product safety could be assured. The set of harmonized assessment criteria for the efficacy Kava market in Germany alone is $25m. Proving the and safety "Herbal Medicinal Products for traditional efficacy of such a product is economically viable. use". The current and future E.U. member states will Such issues illustrate how regulation currently affects produce and abide by this directive, making 28 states the natural health product market and also why new in total. -
Graphical Abstract CG 18-1-MS
Send Orders for Reprints to [email protected] 3 Current Genomics, 2017, 18, 3-26 REVIEW ARTICLE ISSN: 1389-2029 eISSN: 1875-5488 Impact Factor: 2.43 Established Human Cell Lines as Models to Study Anti-leukemic Effects of Flavonoids BENTHAM SCIENCE Katrin Sak* and Hele Everaus Department of Hematology and Oncology, University of Tartu, Tartu, Estonia Abstract: Despite the extensive work on pathological mechanisms and some recent advances in the treatment of different hematological malignancies, leukemia continues to present a significant challenge being frequently considered as incurable disease. Therefore, the development of novel therapeutic agents with high efficacy and low toxicity is urgently needed to improve the overall survival rate of pa- A R T I C L E H I S T O R Y tients. In this comprehensive review article, the current knowledge about the anticancer activities of Received: May 11, 2015 flavonoids as plant secondary polyphenolic metabolites in the most commonly used human established Revised: November 20, 2015 Accepted: November 27, 2015 leukemia cell lines (HL-60, NB4, KG1a, U937, THP-1, K562, Jurkat, CCRF- CEM, MOLT-3, and MOLT-4) is compiled, revealing clear anti-proliferative, pro-apoptotic, cell cycle arresting, and differ- DOI: 10.2174/138920291766616080316 entiation inducing effects for certain compounds. Considering the low toxicity of these substances in 5447 normal blood cells, the presented data show a great potential of flavonoids to be developed into novel anti-leukemia agents applicable also in the malignant cells resistant to the current conventional che- motherapeutic drugs. Keywords: Antiproliferation, Apoptosis, Cell cycle arrest, Cytotoxicity, Differentiation, Flavonoids, Leukemia, Human cell lines. -
Cytotoxic Activities of Flavonoids from Centaurea Scoparia
Hindawi Publishing Corporation e Scientific World Journal Volume 2014, Article ID 274207, 7 pages http://dx.doi.org/10.1155/2014/274207 Research Article Cytotoxic Activities of Flavonoids from Centaurea scoparia Sayed A. Ahmed and Emadeldin M. Kamel Chemistry Department, Faculty of Science, Beni Suef University, Salah Salem Street, P.O. Box 62514, Beni Suef 62514, Egypt Correspondence should be addressed to Sayed A. Ahmed; [email protected] Received 17 January 2014; Accepted 22 May 2014; Published 11 June 2014 Academic Editor: Diego Savoia Copyright © 2014 S. A. Ahmed and E. M. Kamel. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Phytochemical studies on the ethanolic extract of the aerial parts of Centaurea scoparia ledtotheisolationof two new flavonoids, 3 ,4 -dihydroxy-(3 ,4 -dihydro-3 -hydroxy-4 -acetoxy)-2 ,2 -dimethylpyrano-(5 ,6 :7,8)-flavone-3-O-- D-glucopyranoside (1)and3,3,4 -trihydroxy-(3 ,4 -dihydro-3 ,4 -dihydroxy)-2 ,2 -dimethylpyrano-(5 ,6 :7,8)-flavone (2), along with eight known flavonoids isolated for the first time from this plant, cynaroside (3), Apigetrin (4), centaureidin (5), oroxylin A(6), 5,7-dihydroxy-3 ,4 ,5 -trimethoxyflavone (7), atalantoflavone (8), 5-hydroxy-3 ,4 ,8-trimethoxy-2 ,2 -dimethylpyrano (5 ,6 :6,7)-flavone (9), and 3 ,4 ,5,8-tetramethoxy-2 ,2 -dimethylpyrano (5 ,6 :6,7)-flavone (10). The structures of the isolated compounds were elucidated by means of spectroscopic tools including 1D and 2D NMR, UV,IR, and mass spectroscopy. -
NMR Spectra of Flavone Di-C-Glycosides from Apometzgeria Pubescens and the Detection of Rotational Isomerism in 8-C-Hexosyiflavones
NMR Spectra of Flavone Di-C-glycosides from Apometzgeria pubescens and the Detection of Rotational Isomerism in 8-C-HexosyIflavones Kenneth R. Markham Chemistry Division, DSIR. Petone, New Zealand Rüdiger Mues, Marina Stoll, and H. Dietmar Zinsmeister FB15, Botanik, Universität des Saarlandes, D-6600 Saarbrücken Z. Naturforsch. 42c, 1039—1042 (1987); received D ecem ber 5, 1986/March 2, 1987 Flavone Di-C-glycosides. Apometzgeria pubescens, Liverworts, NMR, Rotational Isomerism ‘H and l3C NMR spectra are documented for the novel flavone- 6,8-di-C-glycosides isolated from the liverwort, Apometzgeria pubescens. The existence of rotational isomerism evident from these spectra is shown to be general for 8-C-monohexosylflavones and of possible diagnostic value. Introduction in Metzgeria furcata and some Radula species; 3 has The number of new flavonoid C-glycosides re been found in Hymenophyton [9], Takakia [10], ported from plant sources has increased rapidly in Melilotus alba [11], Angiopteris [12] and Hoy a la- the past 10 years [1, 2]. Recently, a wide variety of cunosa [13]; and 4 and 5 are new. unusual and often unique flavone C-glycosides has Full I3C and ‘H NMR spectra for compounds 1—5 been isolated from liverworts [3] and their structures are presented in Tables I and II together with have generally been well supported with spectro selected reference spectra. The spectra are all con scopic evidence. However, preliminary data only has sistent with the structures previously proposed, but so far appeared in support of five recently reported in addition, the 'H NMR spectra define the C-glu- flavone-C-glycosides from Apometzgeria pubescens cosyl moieties to be ß-linked (Jl 2 for H-l" = 10 Hz) [4, 5]. -
WO 2012/159639 Al 29 November 2012 (29.11.2012)
(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date WO 2012/159639 Al 29 November 2012 (29.11.2012) (51) International Patent Classification: AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, A23L 1/30 (2006.01) A61K 36/48 (2006.01) CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, A61K 36/185 (2006.01) A61K 36/8962 (2006.01) DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, A61K 36/63 (2006.01) A61K 36/54 (2006.01) HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, A61K 36/23 (2006.01) A61K 36/71 (2006.01) KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, A61K 36/9066 (2006.01) A61K 36/886 (2006.01) MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, A61K 36/28 (2006.01) A61K 36/53 (2006.01) OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, A61K 36/82 (2006.01) A61K 36/64 (2006.01) SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, A61K 36/67 (2006.01) TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (21) International Application Number: (84) Designated States (unless otherwise indicated, for every PCT/EG20 12/0000 18 kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, (22) International Filing Date: UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, 22 May 2012 (22.05.2012) TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, (25) Filing Language: English EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, (26) Publication Language: English TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, (30) Priority Data: ML, MR, NE, SN, TD, TG). -
Important Flavonoids and Their Role As a Therapeutic Agent
molecules Review Important Flavonoids and Their Role as a Therapeutic Agent Asad Ullah 1 , Sidra Munir 1 , Syed Lal Badshah 1,* , Noreen Khan 1, Lubna Ghani 2, Benjamin Gabriel Poulson 3 , Abdul-Hamid Emwas 4 and Mariusz Jaremko 3,* 1 Department of Chemistry, Islamia College University Peshawar, Peshawar 25120, Pakistan; [email protected] (A.U.); [email protected] (S.M.); [email protected] (N.K.) 2 Department of Chemistry, The University of Azad Jammu and Kashmir, Muzaffarabad, Azad Kashmir 13230, Pakistan; [email protected] 3 Division of Biological and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; [email protected] 4 Core Labs, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; [email protected] * Correspondence: [email protected] (S.L.B.); [email protected] (M.J.) Received: 20 September 2020; Accepted: 1 November 2020; Published: 11 November 2020 Abstract: Flavonoids are phytochemical compounds present in many plants, fruits, vegetables, and leaves, with potential applications in medicinal chemistry. Flavonoids possess a number of medicinal benefits, including anticancer, antioxidant, anti-inflammatory, and antiviral properties. They also have neuroprotective and cardio-protective effects. These biological activities depend upon the type of flavonoid, its (possible) mode of action, and its bioavailability. These cost-effective medicinal components have significant biological activities, and their effectiveness has been proved for a variety of diseases. The most recent work is focused on their isolation, synthesis of their analogs, and their effects on human health using a variety of techniques and animal models. -
Evaluation of Anticancer Activities of Phenolic Compounds In
EVALUATION OF ANTICANCER ACTIVITIES OF PHENOLIC COMPOUNDS IN BLUEBERRIES AND MUSCADINE GRAPES by WEIGUANG YI (Under the Direction of CASIMIR C. AKOH) ABSTRACT Research has shown that diets rich in phenolic compounds may be associated with lower risk of several chronic diseases including cancer. This study systematically evaluated the bioactivities of phenolic compounds in blueberries and muscadine grapes, and assessed their potential cell growth inhibition and apoptosis induction effects using two colon cancer cell lines (HT-29 and Caco-2), and one liver cancer cell line (HepG2). In addition, the absorption of blueberry anthocyanin extracts was evaluated using Caco-2 human intestinal cell monolayers. Polyphenols in three blueberry cultivars (Briteblue, Tifblue and Powderblue), and four cultivars of muscadine (Carlos, Ison, Noble, and Supreme) were extracted and freeze dried. The extracts were further separated into phenolic acids, tannins, flavonols, and anthocyanins using a HLB cartridge and LH20 column. In both blueberries and muscadine grapes, some individual phenolic acids and flavonoids were identified by HPLC with more than 90% purity in anthocyanin fractions. The dried extracts and fractions were added to the cell culture medium to test for cell growth inhibition and induction of apoptosis. Polyphenols from both blueberries and muscadine grapes had significant inhibitory effects on cancer cell growth. The phenolic acid fraction showed relatively lower bioactivities with 50% inhibition at 0.5-3 µg/mL. The intermediate bioactivities were observed in the flavonol and tannin fractions. The greatest inhibitory effect among all four fractions was from the anthocyanin fractions in the three cell lines. Cell growth was significantly inhibited more than 50% by the anthocyanin fractions at concentrations of 15-300 µg/mL. -
Potential Role of Flavonoids in Treating Chronic Inflammatory Diseases with a Special Focus on the Anti-Inflammatory Activity of Apigenin
Review Potential Role of Flavonoids in Treating Chronic Inflammatory Diseases with a Special Focus on the Anti-Inflammatory Activity of Apigenin Rashida Ginwala, Raina Bhavsar, DeGaulle I. Chigbu, Pooja Jain and Zafar K. Khan * Department of Microbiology and Immunology, and Center for Molecular Virology and Neuroimmunology, Center for Cancer Biology, Institute for Molecular Medicine and Infectious Disease, Drexel University College of Medicine, Philadelphia, PA 19129, USA; [email protected] (R.G.); [email protected] (R.B.); [email protected] (D.I.C.); [email protected] (P.J.) * Correspondence: [email protected] Received: 28 November 2018; Accepted: 30 January 2019; Published: 5 February 2019 Abstract: Inflammation has been reported to be intimately linked to the development or worsening of several non-infectious diseases. A number of chronic conditions such as cancer, diabetes, cardiovascular disorders, autoimmune diseases, and neurodegenerative disorders emerge as a result of tissue injury and genomic changes induced by constant low-grade inflammation in and around the affected tissue or organ. The existing therapies for most of these chronic conditions sometimes leave more debilitating effects than the disease itself, warranting the advent of safer, less toxic, and more cost-effective therapeutic alternatives for the patients. For centuries, flavonoids and their preparations have been used to treat various human illnesses, and their continual use has persevered throughout the ages. This review focuses on the anti-inflammatory actions of flavonoids against chronic illnesses such as cancer, diabetes, cardiovascular diseases, and neuroinflammation with a special focus on apigenin, a relatively less toxic and non-mutagenic flavonoid with remarkable pharmacodynamics. Additionally, inflammation in the central nervous system (CNS) due to diseases such as multiple sclerosis (MS) gives ready access to circulating lymphocytes, monocytes/macrophages, and dendritic cells (DCs), causing edema, further inflammation, and demyelination. -
Huxie Huaji Ointment Induced Apoptosis of Liver Cancer Cells in Vivo and in Vitro by Activating the Mitochondrial Pathway
Hindawi Evidence-Based Complementary and Alternative Medicine Volume 2021, Article ID 9922059, 13 pages https://doi.org/10.1155/2021/9922059 Research Article Huxie Huaji Ointment Induced Apoptosis of Liver Cancer Cells In Vivo and In Vitro by Activating the Mitochondrial Pathway Yuan Cai ,1 Qing Du ,1 Tian-Hao Deng ,1 Bing-Bing Shen ,1 Yan-Mei Peng ,1 Pu-Hua Zeng ,1 and Song-Ren Yu 2 1Institute of Traditional Chinese Medicine, Hunan Academy of Chinese Medicine, Changsha 410006, China 2Jiangxi University of Chinese Medicine, Nanchang, Jiangxi 330006, China Correspondence should be addressed to Pu-Hua Zeng; [email protected] and Song-Ren Yu; [email protected] Received 9 March 2021; Revised 28 May 2021; Accepted 6 July 2021; Published 15 July 2021 Academic Editor: Yu CAI Copyright © 2021 Yuan Cai et al. 0is is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Huxie Huaji (HXHJ) Ointment is a famous traditional Chinese medicinal prescription and is commonly used for the clinical treatment of hepatocellular carcinoma by boosting immunity and detoxification. However, the scientific evidence for the effect of HXHJ Ointment on hepatocellular carcinoma and the underlying molecular mechanism are lacking. 0e present study aimed to identify the effects of HXHJ Ointment on hepatocellular carcinoma in vitro and in vivo as well as investigating the mechanistic basis for the anticancer effect of HXHJ ointment. First, liquid chromatography-mass spectrometry was used to verify the composition of HXHJ Ointment and quality control. -
Multitargeted Effects of Vitexin and Isovitexin on Diabetes Mellitus and Its Complications
Hindawi e Scientific World Journal Volume 2021, Article ID 6641128, 20 pages https://doi.org/10.1155/2021/6641128 Review Article Multitargeted Effects of Vitexin and Isovitexin on Diabetes Mellitus and Its Complications Ibrahim Luru Abdulai,1 Samuel Kojo Kwofie ,1,2 Winfred Seth Gbewonyo ,3 Daniel Boison ,4 Joshua Buer Puplampu ,4 and Michael Buenor Adinortey 4 1West African Centre for Cell Biology of Infectious Pathogens, College of Basic and Applied Sciences, University of Ghana, P.O. Box LG 54, Legon, Accra, Ghana 2Department of Biomedical Engineering, School of Engineering Sciences, College of Basic and Applied Sciences, University of Ghana, P.O. Box LG77, Legon, Accra, Ghana 3Department of Biochemistry, Cell and Molecular Biology, School of Biological Sciences, University of Ghana, Legon, Accra, Ghana 4Department of Biochemistry, School of Biological Sciences, University of Cape Coast, Cape Coast, Ghana Correspondence should be addressed to Michael Buenor Adinortey; [email protected] Received 14 October 2020; Accepted 19 March 2021; Published 12 April 2021 Academic Editor: Ahmad Mansour Copyright © 2021 Ibrahim Luru Abdulai et al. 'is is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Background. Till date, there is no known antidote to cure diabetes mellitus despite the discovery and development of diverse pharmacotherapeutic agents many years ago. Technological advancement in natural product chemistry has led to the isolation of analogs of vitexin and isovitexin found in diverse bioresources. 'ese compounds have been extensively studied to explore their pharmacological relevance in diabetes mellitus.