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Brock CP. Pervasive approximate periodic symmetry in organic P1 structures. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2022; 78:576-588. [PMID: 35975824 DOI: 10.1107/s2052520622004929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 05/07/2022] [Indexed: 06/15/2023]
Abstract
The goal of this project was to identify the prevalence of approximate symmetry in organic P1 structures. In the November 2019 version of the Cambridge Structural Database (CSD), there are 2592 organic, P1, R ≤ 0.050 structures; complete, unique entries are available for 1407 Z = Z' > 1 and 1049 Z = Z' = 1 structures. All the Z > 1 structures can have approximate symmetry; the Z = 1 structures were scanned to find those composed of molecules or ions that might lie on a special position and those that have two or more large molecules or ions that are very similar. The number of Z = 1 structures so identified was 285, of which 49 were grouped with the Z > 1 structures because Zeffective > 1. The packing in each of the 1407 + 285 = 1692 structures was investigated. The 144 that should almost certainly have been described in a smaller or higher-symmetry unit cell were removed from the list; 120 of the 144 are composed of achiral or racemic material. (About half of the Z = 1 and 89% of the Z > 1 structures are composed of enantiopure material.) Approximate periodic symmetry was found in 86% of the 1337 remaining Z > 1 structures and in 72% of the 211 remaining Z = 1 structures. About a third of the enantiomerically pure structures mimic inversion symmetry; 38% have approximate rotational symmetry. For the structures of achiral and racemic material, distorted glide or mirror symmetry is more common than is distorted inversion symmetry. Approximate rotational and glide symmetry was found to be periodic in two dimensions considerably more often than in three. In 4% of the structures, different layer types alternate or layers are related by approximate local rotations, as well as by small translations. In 5% of the structures, different parts of the molecule are segregated into two-dimensional regions that have different approximate symmetries. More than a third of the structures that are a distorted version of a higher-symmetry structure were determined at T ≥ 288 K.
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Affiliation(s)
- Carolyn Pratt Brock
- Department of Chemistry, University of Kentucky, Lexington, KY 40506-0055, USA
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Mfotie Njoya E, Moundipa Fewou P, Niedermeyer THJ. Codiaeum variegatum (L.) Rumph. ex A. Juss. (Euphorbiaceae): An overview of its botanical diversity, traditional uses, phytochemistry, pharmacological effects and perspectives towards developing its plant-based products. JOURNAL OF ETHNOPHARMACOLOGY 2021; 277:114244. [PMID: 34052354 DOI: 10.1016/j.jep.2021.114244] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 05/05/2021] [Accepted: 05/24/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Codiaeum variegatum also called miracle shrub, is a plant species constituted of more than 300 cultivars which are mostly used as indoor plants for decoration. However, some of these varieties are used by indigenous populations for the treatment of diarrhoea, stomach ache, external wounds, intestinal worms and ulcers. AIM OF THE STUDY This study describes an overview of the botanical diversity, medicinal uses, phytochemical composition of C. variegatum. Then it critically discusses its pharmacological activities versus toxic potential and new perspectives are suggested for the development of its plant-based products. MATERIALS AND METHODS A bibliographic assessment of publications on C. variegatum indexed in Google Scholar, PubMed, Science Direct, Scopus, Springer Link, and Web of Science online databases was conducted from 1970 to 2020, and 89 relevant articles related to the botanical diversity (17), traditional uses (22), phytochemical analysis (11), pharmacological activity (31) and toxicity profile (18) of C. variegatum were selected for this review. RESULTS Most commonly, it was found that aqueous leaf extracts or decoctions of C. variegatum are used in traditional medicine to treat amoebic dysentery and stomach ache while a bath with root decoction or sap is applied in small quantities on skin related infections. A total of 14 identified and 24 non-identified varieties of C. variegatum were reported for pharmacological activity, and prominent research topics include the anti-amoebic, antimicrobial, antiviral and cytotoxic activities. Alkaloids (3), terpenoids (5) and phenolics (15) were the major compounds identified, and a new antiviral cyanoglucoside was isolated from the sap of C. variegatum. Toxic substances (5-deoxyingenol and phorbol esters) were found in some varieties used as ornamental plants, but the Mollucanum variety used in traditional medicine was found to be safe. CONCLUSION The present review revealed that the native variety of C. variegatum (cv. Mollucanum) can be used to treat amoebic dysentery. Alkaloids, terpenoids and phenolic compounds have been characterized in this plant species while other classes of phytochemicals are not yet investigated. The development of new cultivars recommends an in-depth toxicological study before any use. No clinical trial has been reported to date, and further studies are needed to evaluate other claimed medicinal uses. Due to its efficacy and safety, the Mollucanum variety is most likely suitable for the development of a medicine against amoebiasis, which will surely lay the foundation for clinical studies.
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Affiliation(s)
- Emmanuel Mfotie Njoya
- Laboratory of Pharmacology and Toxicology, Department of Biochemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon; Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany.
| | - Paul Moundipa Fewou
- Laboratory of Pharmacology and Toxicology, Department of Biochemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon.
| | - Timo H J Niedermeyer
- Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany.
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Park KJ, Suh WS, Yoon DH, Kim CS, Kim SY, Lee KR. Phenolic constituents from twigs of Aleurites fordii and their biological activities. Beilstein J Org Chem 2021; 17:2329-2339. [PMID: 34621396 PMCID: PMC8450942 DOI: 10.3762/bjoc.17.151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 08/24/2021] [Indexed: 11/30/2022] Open
Abstract
Three new neolignan glycosides (1-3), a new phenolic glycoside (15), and a new cyanoglycoside (16) were isolated and characterized from the twigs of Aleurites fordii together with 14 known analogues (4-14 and 17-19). The structural elucidation of the new compounds was performed through the analysis of their NMR, HRMS, and ECD spectra and by chemical methods. All isolated compounds were tested for their antineuroinflammatory and neuroprotective activities.
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Affiliation(s)
- Kyoung Jin Park
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Won Se Suh
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Da Hye Yoon
- Laboratory of Pharmacognosy, College of Pharmacy, Gachon University, Incheon, 21936, Republic of Korea
| | - Chung Sub Kim
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
- Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Sun Yeou Kim
- Laboratory of Pharmacognosy, College of Pharmacy, Gachon University, Incheon, 21936, Republic of Korea
| | - Kang Ro Lee
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
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Mona A.M. Abo-Zeid, Farghaly AA, Hassan EM, Abdel-Samie NS. Phenolic Compounds of Codiaeum variegatum Spirale Lessened Cytotoxic and Genotoxic Effects of Mitomycin C in Mice Somatic and Germ Cells. CYTOL GENET+ 2020. [DOI: 10.3103/s0095452719060057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lee JY, Abundo MEC, Lee CW. Herbal Medicines with Antiviral Activity Against the Influenza Virus, a Systematic Review. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2019; 46:1663-1700. [PMID: 30612461 DOI: 10.1142/s0192415x18500854] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The rapidly changing influenza virus has remained a consistent threat to the well-being of a variety of species on the planet. Influenza virus' high mutation rate has allowed the virus to rapidly and continuously evolve, as well as generate new strains that are resistant to the current commercially available antivirals. Thus, the increased resistance has compelled the scientific community to explore alternative compounds that have antiviral effects against influenza virus. In this paper, the authors systematically review numerous herbal extracts that were shown to have antiviral effects against the virus. Specifically, the herbal antiviral targets mainly include hemagglutinin, neuraminidase and matrix 2 proteins. In some instances, herbal extracts inhibited the replication of oseltamivir-resistant strains and certain pentacyclic triterpenes exhibited higher antiviral activity than oseltamivir. This paper also explores the possibility of targeting various host-cell signaling pathways that are utilized by the virus during its replication process. Infected cell pathways are hijacked by intracellular signaling cascades such as NF-kB signaling, PI3K/Akt pathway, MAPK pathway and PKC/PKR signaling cascades. Herbal antivirals have been shown to target these pathways by suppressing nuclear export of influenza vRNP and thus inhibiting the phosphorylation signaling cascade. In conclusion, copious amounts of herbal antivirals have been shown to inhibit influenza virus, however further studies are needed for these new compounds to be up to modern pharmacological standards.
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Affiliation(s)
- Ju-Young Lee
- * Food Animal Health Research Program, Ohio Agricultural Research and Development Center, The Ohio State University, Columbus, Ohio, USA.,‡ Mom-Pyon Han Pharmacy, Nambusoonhwan-ro 770, Seosan City, Chungnam, Republic of Korea
| | - Michael Edward C Abundo
- * Food Animal Health Research Program, Ohio Agricultural Research and Development Center, The Ohio State University, Columbus, Ohio, USA.,† Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Chang-Won Lee
- * Food Animal Health Research Program, Ohio Agricultural Research and Development Center, The Ohio State University, Columbus, Ohio, USA.,† Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, USA
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Saffoon N, Uddin R, Subhan N, Hossain H, Reza HM, Alam MA. In vitro Anti-oxidant Activity and HPLC-DAD System Based Phenolic Content Analysis of Codiaeum variegatum Found in Bangladesh. Adv Pharm Bull 2015; 4:533-41. [PMID: 25671186 DOI: 10.5681/apb.2014.079] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2014] [Revised: 05/29/2014] [Accepted: 06/01/2014] [Indexed: 11/17/2022] Open
Abstract
PURPOSE This study evaluated the in vitro antioxidant potential of two varieties of Codiaeum variegatum leaves (spiral (CP) and royal like (BP)) extracts. METHODS The different antioxidant assays, including DPPH free radical scavenging, nitric oxide scavenging, hydrogen peroxide, reducing power, total antioxidant activity, protection of lipid peroxidation and RBC membrane stabilization activity, were studied. Moreover, high-performance liquid chromatography (HPLC) coupled with diode-array detection was used to identify and quantify the phenolic compounds in the royal like (BP) leaves extract. RESULTS Codiaeum variegatum extracts showed effective DPPH free radical scavenging, hydrogen peroxide radical scavenging and nitric oxide scavenging activity. However, reducing power of ferric ion was not significant compared to the standard antioxidant activity. In addition, Codiaeum variegatum extracts exhibited protection against lipid peroxidation. The total antioxidant activity was increased dose dependently when compared with standard drug ascorbic acid. (-)-Epicatechin, p-coumaric acid, rutin hydrate and ellagic acid were identified in the extract. Among the phenolic compounds, ellagic acid was abundantly present in the extract. CONCLUSION Our investigation suggests that Codiaeum variegatum leaves contain high amount of phenolic compounds which may responsible for its biological activities in folkloric medicine.
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Affiliation(s)
- Nadia Saffoon
- Department of Pharmacy, Stamford University, Dhaka, Bangladesh
| | - Riaz Uddin
- Department of Pharmacy, Stamford University, Dhaka, Bangladesh
| | - Nusrat Subhan
- School of Biomedical Sciences, Charles Sturt University, Wagga Wagga, Australia
| | - Hemayet Hossain
- BCSIR Laboratories, Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, Bangladesh
| | - Hasan Mahmud Reza
- Department of Pharmaceutical Sciences, North South University, Bangladesh
| | - Md Ashraful Alam
- Department of Pharmaceutical Sciences, North South University, Bangladesh
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Mfotie Njoya E, Moundipa PF, Stopper H. In vitro genotoxic and mutagenic evaluation of the aqueous extract of Codiaeum variegatum and its amoebicidal sub-fraction. JOURNAL OF ETHNOPHARMACOLOGY 2014; 155:823-829. [PMID: 24971796 DOI: 10.1016/j.jep.2014.06.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 05/27/2014] [Accepted: 06/15/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Codiaeum variegatum, grown in many varieties, has been widely used as a houseplant based on its brightly decorative foliage. In addition, a variety of this plant has been used for a long time against bloody diarrhea by the local population in Cameroon. AIM OF THE STUDY In our previous study, the aqueous extract of this plant and an isolated sub-fraction exhibited significant anti-amoebic activity on axenic culture of Entamoeba histolytica. Due to the medicinal value of these extracts, we promptly initiated to investigate their genotoxic and mutagenic potential in order to assure their safe and rationale usage in traditional healthcare system. MATERIAL AND METHODS Both extracts were incubated with L5178Y mouse lymphoma cells, primary hepatic cells and HepG2 human hepatocellular carcinoma cells and their genotoxicity and mutagenicity were evaluated by quantifying DNA damage and chromosomal aberrations through comet assay, micronucleus assay and mouse lymphoma mutation assay. RESULTS The aqueous extract of Codiaeum variegatum is not cytotoxic up to 2000 µg/mL while the amoebicidal fraction is significantly cytotoxic (≤40-55%) on L5178Y mouse lymphoma and HepG2 cells at concentrations higher than 500 µg/mL. Besides, no significant DNA damage and induction of micronucleus formation were identified at concentrations up to 2000 µg/mL. Moreover, the mutagenic potential of these extracts after short (4 h) and long term (24 h) treatment, revealed no significant gene mutation induction. CONCLUSION The aqueous extract of Codiaeum variegatum and the amoebicidal fraction SF9B are neither genotoxic on non-competent or metabolic competent cell lines, nor mutagenic in mouse lymphoma mutation assay and therefore they could be safely used at lower doses for medicinal purpose.
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Affiliation(s)
- Emmanuel Mfotie Njoya
- Laboratory of Pharmacology and Toxicology, Department of Biochemistry, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon; Institute of Pharmacology and Toxicology, University of Würzburg, Versbacher Str. 9, 97078 Würzburg, Germany.
| | - Paul F Moundipa
- Laboratory of Pharmacology and Toxicology, Department of Biochemistry, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Helga Stopper
- Institute of Pharmacology and Toxicology, University of Würzburg, Versbacher Str. 9, 97078 Würzburg, Germany
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Faral-Tello P, Mirazo S, Dutra C, Pérez A, Geis-Asteggiante L, Frabasile S, Koncke E, Davyt D, Cavallaro L, Heinzen H, Arbiza J. Cytotoxic, virucidal, and antiviral activity of South American plant and algae extracts. ScientificWorldJournal 2012; 2012:174837. [PMID: 22619617 PMCID: PMC3349323 DOI: 10.1100/2012/174837] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Accepted: 02/08/2012] [Indexed: 11/17/2022] Open
Abstract
Herpes simplex virus type 1 (HSV-1) infection has a prevalence of 70% in the human population. Treatment is based on acyclovir, valacyclovir, and foscarnet, three drugs that share the same mechanism of action and of which resistant strains have been isolated from patients. In this aspect, innovative drug therapies are required. Natural products offer unlimited opportunities for the discovery of antiviral compounds. In this study, 28 extracts corresponding to 24 plant species and 4 alga species were assayed in vitro to detect antiviral activity against HSV-1. Six of the methanolic extracts inactivated viral particles by direct interaction and 14 presented antiviral activity when incubated with cells already infected. Most interesting antiviral activity values obtained are those of Limonium brasiliense, Psidium guajava, and Phyllanthus niruri, which inhibit HSV-1 replication in vitro with 50% effective concentration (EC(50)) values of 185, 118, and 60 μg/mL, respectively. For these extracts toxicity values were calculated and therefore selectivity indexes (SI) obtained. Further characterization of the bioactive components of antiviral plants will pave the way for the discovery of new compounds against HSV-1.
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Affiliation(s)
- Paula Faral-Tello
- Sección Virología, Facultad de Ciencias, Universidad de la República, 11400 Montevideo, Uruguay
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Bioactivity-guided fractionation and analysis of compounds with anti-influenza virus activity from Gardenia jasminoides ellis. Arch Pharm Res 2012; 35:9-17. [DOI: 10.1007/s12272-012-0101-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2011] [Revised: 06/30/2011] [Accepted: 07/07/2011] [Indexed: 11/25/2022]
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Simões LR, Maciel GM, Brandão GC, Kroon EG, Castilho RO, Oliveira AB. Antiviral activity of Distictella elongata (Vahl) Urb. (Bignoniaceae), a potentially useful source of anti-dengue drugs from the state of Minas Gerais, Brazil. Lett Appl Microbiol 2011; 53:602-7. [PMID: 21895729 DOI: 10.1111/j.1472-765x.2011.03146.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AIMS To investigate the in vitro antiviral activity of Distictella elongata (Vahl) Urb. ethanol extracts from leaves (LEE), fruits (FEE), stems and their main components. METHODS AND RESULTS The antiviral activity was evaluated against human herpesvirus type 1 (HSV-1), murine encephalomyocarditis virus (EMCV), vaccinia virus Western Reserve (VACV-WR) and dengue virus 2 (DENV-2) by the 3-(4, 5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) colorimetric assay. LEE presented anti-HSV-1 [EC(50) 142.8 ± 5.3 μg ml(-1); selectivity index (SI) 2.0] and anti-DENV-2 activity (EC(50) 9.8 ± 1.3 μg ml(-1) ; SI 1.5). The pectolinarin (1) isolated from LEE was less active against HSV-1 and DENV-2. A mixture of the triterpenoids ursolic, pomolic and oleanolic acids was also obtained. Ursolic and oleanolic acids have shown antiviral activity against HSV-1. A mixture of pectolinarin (1) and acacetin-7-O-rutinoside (2) was isolated from FEE and has presented anti-DENV-2 activity (EC(50) 11.1 ± 1.6 μg ml(-1) ; SI > 45). Besides the antiviral activity, D. elongata has disclosed antioxidant effect. CONCLUSIONS These data shows that D. elongata has antiviral activity mainly against HSV-1 and DENV-2, besides antioxidant activity. These effects might be principally attributed to flavonoids isolated. SIGNIFICANCE AND IMPACT OF THE STUDY Distictella elongata might be considered a promising source of anti-dengue fever phytochemicals.
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Affiliation(s)
- L R Simões
- Faculty of Pharmacy, Department of Pharmaceutical Products, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
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Nguyen PH, Na M, Dao TT, Ndinteh DT, Mbafor JT, Park J, Cheong H, Oh WK. New stilbenoid with inhibitory activity on viral neuraminidases from Erythrina addisoniae. Bioorg Med Chem Lett 2010; 20:6430-4. [DOI: 10.1016/j.bmcl.2010.09.077] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2010] [Revised: 08/28/2010] [Accepted: 09/14/2010] [Indexed: 10/19/2022]
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