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Chekan JR, Mydy LS, Pasquale MA, Kersten RD. Plant peptides - redefining an area of ribosomally synthesized and post-translationally modified peptides. Nat Prod Rep 2024; 41:1020-1059. [PMID: 38411572 PMCID: PMC11253845 DOI: 10.1039/d3np00042g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Indexed: 02/28/2024]
Abstract
Covering 1965 to February 2024Plants are prolific peptide chemists and are known to make thousands of different peptidic molecules. These peptides vary dramatically in their size, chemistry, and bioactivity. Despite their differences, all plant peptides to date are biosynthesized as ribosomally synthesized and post-translationally modified peptides (RiPPs). Decades of research in plant RiPP biosynthesis have extended the definition and scope of RiPPs from microbial sources, establishing paradigms and discovering new families of biosynthetic enzymes. The discovery and elucidation of plant peptide pathways is challenging due to repurposing and evolution of housekeeping genes as both precursor peptides and biosynthetic enzymes and due to the low rates of gene clustering in plants. In this review, we highlight the chemistry, biosynthesis, and function of the known RiPP classes from plants and recommend a nomenclature for the recent addition of BURP-domain-derived RiPPs termed burpitides. Burpitides are an emerging family of cyclic plant RiPPs characterized by macrocyclic crosslinks between tyrosine or tryptophan side chains and other amino acid side chains or their peptide backbone that are formed by copper-dependent BURP-domain-containing proteins termed burpitide cyclases. Finally, we review the discovery of plant RiPPs through bioactivity-guided, structure-guided, and gene-guided approaches.
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Affiliation(s)
- Jonathan R Chekan
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC, USA.
| | - Lisa S Mydy
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI, USA.
| | - Michael A Pasquale
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC, USA.
| | - Roland D Kersten
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI, USA.
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2
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Kriger D, Pasquale MA, Ampolini BG, Chekan JR. Mining raw plant transcriptomic data for new cyclopeptide alkaloids. Beilstein J Org Chem 2024; 20:1548-1559. [PMID: 39015620 PMCID: PMC11250218 DOI: 10.3762/bjoc.20.138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Accepted: 06/24/2024] [Indexed: 07/18/2024] Open
Abstract
In recent years, genome and transcriptome mining have dramatically expanded the rate of discovering diverse natural products from bacteria and fungi. In plants, this approach is often more limited due to the lack of available annotated genomes and transcriptomes combined with a less consistent clustering of biosynthetic genes. The recently identified burpitide class of ribosomally synthesized and post-translationally modified peptide (RiPP) natural products offer a valuable opportunity for bioinformatics-guided discovery in plants due to their short biosynthetic pathways and gene encoded substrates. Using a high-throughput approach to assemble and analyze 700 publicly available raw transcriptomic data sets, we uncover the potential distribution of split burpitide precursor peptides in Streptophyta. Metabolomic analysis of target plants confirms our bioinformatic predictions of new cyclopeptide alkaloids from both known and new sources.
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Affiliation(s)
- Draco Kriger
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC, USA
| | - Michael A Pasquale
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC, USA
| | - Brigitte G Ampolini
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC, USA
| | - Jonathan R Chekan
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC, USA
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3
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Fan XZ, Song JQ, Zhang LJ, Wang R, Liu T, Bai WJ, Kong XQ, Huang YS, Liang H, Liao HB. Picrachinentins A-F, 14-Membered Cyclopeptide Alkaloid-Type Burpitides with Uncommon N-Terminal Modifications from Picrasma chinensis and Their Neuroprotective Activity. Org Lett 2024. [PMID: 38787765 DOI: 10.1021/acs.orglett.4c01390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2024]
Abstract
Picrachinentins A-F (1-6, respectively), six novel cyclopeptide alkaloid-type burpitides (CPABs), were isolated and fully elucidated from the EtOH extract of the stems and leaves of Picrasma chinensis. Structurally, compounds 1-6 have a 14-membered paracyclophane ring system that was closed through an ether bond between the β-hydroxy amino acid and tyrosine and modified with a 4,5-methylenedioxybenzoyloxy (MDBz, 3 and 5) or hexanoyl (Hexa, 1, 2, 4, and 6) group at the N-terminus. Interestingly, this is the first report on the isolation and characterization of CPABs from plants of the Simaroubaceae family. In addition, all compounds showed a neuroprotective effect against H2O2-damaged SH-SY5Y cells. Compound 1 was further investigated for its neuroprotective activities using a 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced Parkinson's disease animal model, and it dramatically improved MPTP-impaired motor behavioral performance. Biochemical analysis revealed compound 1 restored the tyrosine hydroxylase expression in the striatum of the MPTP-damaged mouse brain, which demonstrates its protective effect on dopaminergic neurons.
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Affiliation(s)
- Xian-Zhe Fan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Jia-Qi Song
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Li-Jun Zhang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Rong Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Ting Liu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Wen-Jing Bai
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Xiang-Qian Kong
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Ya-Si Huang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, China
| | - Hong Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Hai-Bing Liao
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
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4
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da Motta KP, Martins CC, Macedo VM, Dos Santos BF, Domingues NLDC, Luchese C, Wilhelm EA. The Antinociceptive Responses of MTDZ to Paclitaxel-Induced Peripheral Neuropathy and Acute Nociception in Mice: Behavioral, Pharmacological, and Biochemical Approaches. Pharmaceuticals (Basel) 2023; 16:1217. [PMID: 37765025 PMCID: PMC10534544 DOI: 10.3390/ph16091217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 08/21/2023] [Accepted: 08/24/2023] [Indexed: 09/29/2023] Open
Abstract
The efficacy of 5-((4-methoxyphenyl)thio)benzo[c][1,2,5] thiodiazole (MTDZ) in mitigating paclitaxel (PTX)-induced peripheral neuropathy was investigated in male and female Swiss mice. The study examined the effects of MTDZ on various pathways, including transient receptor potential cation channel subfamily V member 1 (TRPV1), glutamatergic, nitrergic, guanylate cyclase (cGMP), serotonergic, and opioidergic. Mice received intraperitoneal PTX (2 mg/kg) or vehicle on days 1, 2, and 3, followed by oral MTDZ (1 mg/kg) or vehicle from days 3 to 14. Mechanical and thermal sensitivities were assessed using Von Frey and hot plate tests on days 8, 11, and 14. The open field test evaluated locomotion and exploration on day 12. On day 15, nitrite and nitrate (NOx) levels and Ca2+-ATPase activity in the cerebral cortex and spinal cord were measured after euthanizing the animals. MTDZ administration reversed the heightened mechanical and thermal sensitivities induced by PTX in male and female mice without affecting locomotion or exploration. MTDZ also modulated multiple pathways, including glutamatergic, NO/L-arginine/cGMP, serotonergic (5-HT1A/1B), opioid, and TRPV1 pathways. Additionally, MTDZ reduced NOx levels and modulated Ca2+-ATPase activity. In conclusion, MTDZ effectively alleviated PTX-induced peripheral neuropathy and demonstrated multi-targeted modulation of pain-related pathways. Its ability to modulate multiple pathways, reduce NOx levels, and modulate Ca2+-ATPase activity makes it a potential pharmacological candidate for peripheral neuropathy, acute nociceptive, and inflammatory conditions. Further research is needed to explore its therapeutic potential in these areas.
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Affiliation(s)
- Ketlyn P da Motta
- Biochemical Pharmacology Research Laboratory, LaFarBio, CCQFA, Federal University of Pelotas, UFPel, P.O. Box 354, Pelotas 96010-900, RS, Brazil
| | - Carolina C Martins
- Biochemical Pharmacology Research Laboratory, LaFarBio, CCQFA, Federal University of Pelotas, UFPel, P.O. Box 354, Pelotas 96010-900, RS, Brazil
| | - Vanessa M Macedo
- Biochemical Pharmacology Research Laboratory, LaFarBio, CCQFA, Federal University of Pelotas, UFPel, P.O. Box 354, Pelotas 96010-900, RS, Brazil
| | - Beatriz F Dos Santos
- Organic Catalysis and Biocatalysis Laboratory, LACOB, Federal University of Grande Dourados, UFGD, P.O. Box 533, Dourados 79804-970, MS, Brazil
| | - Nelson Luís De C Domingues
- Organic Catalysis and Biocatalysis Laboratory, LACOB, Federal University of Grande Dourados, UFGD, P.O. Box 533, Dourados 79804-970, MS, Brazil
| | - Cristiane Luchese
- Biochemical Pharmacology Research Laboratory, LaFarBio, CCQFA, Federal University of Pelotas, UFPel, P.O. Box 354, Pelotas 96010-900, RS, Brazil
| | - Ethel A Wilhelm
- Biochemical Pharmacology Research Laboratory, LaFarBio, CCQFA, Federal University of Pelotas, UFPel, P.O. Box 354, Pelotas 96010-900, RS, Brazil
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Lima ST, Ampolini BG, Underwood EB, Graf TN, Earp CE, Khedi IC, Pasquale MA, Chekan JR. A Widely Distributed Biosynthetic Cassette Is Responsible for Diverse Plant Side Chain Cross-Linked Cyclopeptides. Angew Chem Int Ed Engl 2023; 62:e202218082. [PMID: 36529706 PMCID: PMC10107690 DOI: 10.1002/anie.202218082] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 12/15/2022] [Accepted: 12/16/2022] [Indexed: 12/23/2022]
Abstract
Cyclopeptide alkaloids are an abundant class of plant cyclopeptides with over 200 analogs described and bioactivities ranging from analgesic to antiviral. While these natural products have been known for decades, their biosynthetic basis remains unclear. Using a transcriptome-mining approach, we link the cyclopeptide alkaloids from Ceanothus americanus to dedicated RiPP precursor peptides and identify new, widely distributed split BURP peptide cyclase containing gene clusters. Guided by our bioinformatic analysis, we identify and isolate new cyclopeptides from Coffea arabica, which we named arabipeptins. Reconstitution of the enzyme activity for the BURP found in the biosynthesis of arabipeptin A validates the activity of the newly discovered split BURP peptide cyclases. These results expand our understanding of the biosynthetic pathways responsible for diverse cyclic plant peptides and suggest that these side chain cross-link modifications are widely distributed in eudicots.
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Affiliation(s)
- Stella T Lima
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC 27402, USA
| | - Brigitte G Ampolini
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC 27402, USA
| | - Ethan B Underwood
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC 27402, USA
| | - Tyler N Graf
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC 27402, USA
| | - Cody E Earp
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC 27402, USA
| | - Imani C Khedi
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC 27402, USA
| | - Michael A Pasquale
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC 27402, USA
| | - Jonathan R Chekan
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC 27402, USA
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Al Omar R, Micklewright R, Masud K, Naz T, Vemulpad S, Jamie J. The genus Alphitonia Reissek ex Endl. (Rhamnaceae): A review of its customary uses, phytochemistry and biological activities. JOURNAL OF ETHNOPHARMACOLOGY 2022; 294:115168. [PMID: 35304273 DOI: 10.1016/j.jep.2022.115168] [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: 12/13/2021] [Revised: 02/22/2022] [Accepted: 03/01/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Alphitonia Reissek ex Endl. is a relatively small genus of the family Rhamnaceae. Plants of this genus are found predominantly in the tropical regions of Southeast Asia, Australia and the Pacific, with some species being widely distributed and others endemic to a region. Almost half of the species of the Alphitonia genus have been reported for their customary (traditional and contemporary) medicinal uses. This includes for the treatment of skin conditions, headache, stomachache, inflammation, and body pain such as joint pain and childbirth. AIM OF THE REVIEW The aim of this review is to provide the first comprehensive account on the customary uses including ethnomedicinal uses, and phytochemistry and biological activities of the Alphitonia genus, and to identify gaps in current knowledge and scope for future research of plants of this genus. MATERIALS AND METHODS Information relevant to the genus Alphitonia was collected by searching the scientific databases (SciFinder, Google Scholar, ACS publications, PubMed, Wiley Online Library and International Plant name Index). Species names were validated using the World Flora Online database (www.worldfloraonline.org). RESULTS Eight plants from the Alphitonia genus have been reported to be used as customary medicines, i.e. A. excelsa, A. ferruginea, A. franguloides, A. incana, A. neocaledonica, A. petriei, A. philippinensis and A. zizyphoides. A. excelsa, A. petriei, A. philippinensis and A. zizyphoides, have been shown to have biological activities that align with their customary uses, including antimicrobial, antioxidant and anti-inflammatory activities. Only five Alphitonia species reported for their medicinal customary uses have been explored for their phytochemistry, i.e. A. excelsa, A. neocaledonica, A. petriei, A. philippinensis and A. zizyphoides. Compounds identified from these plants include those that are well known for their medicinal importance. A. macrocarpa, A. whitei and A. xerocarpus have also been examined for their phytochemistry and have been found to have the same or similar bioactive compounds to those found in customarily used Alphitonia species. No biological activities or phytochemistry studies have been reported for the known customarily used medicinal plants A. ferruginea, A. franguloides and A. incana. CONCLUSIONS This review highlights the customary uses, biological activities and phytochemistry of plants of the Alphitonia Reissek ex Endl. genus and highlights the significance of the knowledge systems of Indigenous peoples. Of the plants that have been researched for their biological activities and phytochemistry, there is good correlation with these properties and their customary medicinal uses. However, over half of the plants of the Alphitonia genus, including those that are already reported in the public domain for their customary medicinal uses, have had none or limited biological activities or phytochemistry studies conducted. While only eight species of the Alphitonia genus have been reported as customary medicines, other Alphitonia species also possess medicinally important compounds, and it is possible that they are customary medicines but their uses have not been shared publicly by the Indigenous knowledge custodians. There is clearly much scope for further investigation of this genus with regards to their ethnomedicinal uses and therapeutic potential.
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Affiliation(s)
- Rayan Al Omar
- Indigenous Bioresources Research Group, School of Natural Sciences, Macquarie University, Sydney, New South Wales, 2109, Australia
| | - Rachael Micklewright
- Indigenous Bioresources Research Group, School of Natural Sciences, Macquarie University, Sydney, New South Wales, 2109, Australia
| | - Kalpa Masud
- Indigenous Bioresources Research Group, School of Natural Sciences, Macquarie University, Sydney, New South Wales, 2109, Australia
| | - Tarannum Naz
- Indigenous Bioresources Research Group, School of Natural Sciences, Macquarie University, Sydney, New South Wales, 2109, Australia; Department of Pharmacy, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Subramanyam Vemulpad
- Indigenous Bioresources Research Group, School of Natural Sciences, Macquarie University, Sydney, New South Wales, 2109, Australia
| | - Joanne Jamie
- Indigenous Bioresources Research Group, School of Natural Sciences, Macquarie University, Sydney, New South Wales, 2109, Australia.
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Alarcon-Enos J, Quiroz-Carreño S, Muñoz-Nuñez E, Silva FL, Devotto-Moreno L, Seigler DS, Pastene-Navarrete E, Cespedes-Acuña CL. Cyclopeptide alkaloids from Discaria chacaye (Rhamnaceae) as result of symbiosis with Frankia (Actinomycetales). Chem Biodivers 2022; 19:e202200630. [PMID: 35916106 DOI: 10.1002/cbdv.202200630] [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: 06/29/2022] [Accepted: 07/27/2022] [Indexed: 11/07/2022]
Abstract
Cyclopeptide alkaloids with different biological activities are present in plants of the family Rhamnaceae. Plants of this family grow in a symbiotic relationship with aerobic Gram-positive actinomycetes belonging to the genus Frankia . This goal of this research was a study of the comparative profile of alkaloids present in Discaria chacaye and to establish a connection between the presence or absence of Frankia sp. and the alkaloids. In addition, insecticidal activities of the alkaloidal extract were examined. A total of 24 alkaloids were identified, of which 12 have a benzylisoquinoline skeleton, 9 were cyclopeptides, 2 isoquinolines, and 1 an aporphine. The presence of cyclopeptide alkaloids is associated with Frankia nodules in the plant root. The alkaloid extracts showed insecticidal activity with mortality dose-dependence and LD 50 values between 44 to 71 µg/mL.
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Affiliation(s)
- Julio Alarcon-Enos
- Universidad del Bio Bio, Ciencias Basicas, Avenida Andrés Bello 720, 38000708, Chillan, CHILE
| | - Soledad Quiroz-Carreño
- Universidad del Bio-Bio - Sede Chillan, Ciencias Básicas, Avenida Andrés Bello 720, 38000708, Chillan, CHILE
| | - Evelyn Muñoz-Nuñez
- Universidad del Bio-Bio - Sede Chillan, Ciencias Básicas, Avenida Andrés Bello 720, 38000708, Chillan, CHILE
| | - Fabiana L Silva
- Universidade Paulista Campus de Bauru Instituto de Ciências de Saúde: Universidade Paulista Campus de Bauru Instituto de Ciencias de Saude, Instituto de Ciencias da Saude, Av. Brigadeiro Luís Antônio, 3751, Sao Paulo, BRAZIL
| | - Luis Devotto-Moreno
- INIA: Instituto de Investigaciones Agropecuarias, Control Biológico, Av Vicente Mendez s7n, Chillan, CHILE
| | - David S Seigler
- : University of Illinois Urbana-Champaign Department of Chemistry, Deparment of Plant Biology, 1909 South Oak Street, Urbana-Champaing, UNITED STATES
| | - Edgar Pastene-Navarrete
- Universidad del Bio-Bio - Sede Chillan, Ciencias Básicas, Av Andres Bello 720, Chillan, CHILE
| | - Carlos L Cespedes-Acuña
- Universidad del Bio-Bio - Sede Chillan, Ciencias Básicas, Av Andres Bello 720, Chillan, CHILE
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Systemic, Intrathecal, and Intracerebroventricular Antihyperalgesic Effects of the Calcium Channel Blocker CTK 01512–2 Toxin in Persistent Pain Models. Mol Neurobiol 2022; 59:4436-4452. [DOI: 10.1007/s12035-022-02864-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 04/28/2022] [Indexed: 11/25/2022]
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Dahmer J, Marangon P, Adolpho LO, Reis FL, Maldaner G, Burrow RA, Mostardeiro MA, Dalcol II, Morel AF. Alkaloids from the stem barks of Scutia buxifolia Reissek (Rhamnaceae): Structures and antimicrobial evaluation. PHYTOCHEMISTRY 2022; 196:113071. [PMID: 35032919 DOI: 10.1016/j.phytochem.2021.113071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 11/29/2021] [Accepted: 12/21/2021] [Indexed: 06/14/2023]
Abstract
A reinvestigation of the chemical constituents of the stem barks of Scutia buxifolia, a member of the Rhamnaceae, resulted, along with the known alkaloids scutianine C and scutianene L, in the isolation of three undescribed diastereoisomeric alkaloids - scutianine N, 27-epi-scutianine N and 3, 4, 7-tri-epi-scutianine N -, one undescribed non macrocyclic alkaloid - scutianine Q - and a neutral compound -scutianene M. Their structures were determined using extensive NMR techniques and HRMS. The absolute configurations of the stereogenic centers of the three diastereoisomeric alkaloids have been assigned by gas chromatography employing modified cyclodextrins as chiral stationary phases. Scutianine Q had its structure and stereochemistry defined by single crystal X-ray crystallographic analysis. All tested compounds showed good to moderate antibacterial activity (MICs between 1.56 and 100 μg mL-1) when evaluated in vitro against a panel of Gram-positive and Gram-negative bacteria. Some stereochemistry-activity relationships have been identified for the antibacterial activity of diastereoisomeric alkaloids against the Gram-negative bacteria Enterobacter aerogenes. The alkaloid 27-epi-scutianine N was as active as the standard antibiotic chloramphenicol (MIC = 1.56 μg mL-1), while scutianine N and 3,4,27-tris-epi-Scutianine N were inactive (>100 μg mL-1).
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Affiliation(s)
- Janice Dahmer
- Universidade Federal de Santa Maria, Departamento de Química, CEP, 97105-900, Santa Maria, RS, Brazil
| | - Patricia Marangon
- Universidade Federal de Santa Maria, Departamento de Química, CEP, 97105-900, Santa Maria, RS, Brazil
| | - Luciana O Adolpho
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS 97105-900, Brazil
| | - Frederico L Reis
- Universidade Federal de Santa Maria, Departamento de Química, CEP, 97105-900, Santa Maria, RS, Brazil
| | - Graciela Maldaner
- Universidade Federal de Santa Maria, Departamento de Química, CEP, 97105-900, Santa Maria, RS, Brazil
| | - Robert A Burrow
- Universidade Federal de Santa Maria, Departamento de Química, CEP, 97105-900, Santa Maria, RS, Brazil
| | - Marco A Mostardeiro
- Universidade Federal de Santa Maria, Departamento de Química, CEP, 97105-900, Santa Maria, RS, Brazil
| | - Ionara I Dalcol
- Universidade Federal de Santa Maria, Departamento de Química, CEP, 97105-900, Santa Maria, RS, Brazil; Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS 97105-900, Brazil.
| | - Ademir F Morel
- Universidade Federal de Santa Maria, Departamento de Química, CEP, 97105-900, Santa Maria, RS, Brazil.
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10
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Martins CP, Paes RS, Baldasso GM, Ferrarini EG, Scussel R, Zaccaron RP, Machado-de-Ávila RA, Lock Silveira PC, Dutra RC. Pramipexole, a dopamine D3/D2 receptor-preferring agonist, attenuates reserpine-induced fibromyalgia-like model in mice. Neural Regen Res 2022; 17:450-458. [PMID: 34269222 PMCID: PMC8463993 DOI: 10.4103/1673-5374.317984] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Fibromyalgia (FM) is a complex pathology described as persistent hyperalgesia including somatic and mood dysfunctions, depression and anxiety. Although the etiology of FM is still unknown, a significant decrease in biogenic amines is a common characteristic in its pathogenesis. Here, our main objective was to investigate the role of dopamine D3/D2 receptor during the reserpine-induced pain in mice. Our results showed that pramipexole (PPX) - a dopaminergic D3/D2 receptor agonist - inhibited mechanical allodynia and thermal sensitivity induced by reserpine. Relevantly, PPX treatment decreased immobility time and increased the number of grooming in the forced swimming test and splash test, respectively. Animals that received PPX remained longer in the open arms than the reserpine group using elevated plus-maze apparatus. The repeated PPX administration, given daily for 4 days, significantly blocked the mechanical and thermal allodynia during FM model, similarly to pregabalin, although it failed to affect the reserpine-induced thermal nociception. Reserpine administration induced significant downregulation of dopamine concentration in the central nervous system, and repeated treatment with PPX restored dopamine levels in the frontal cortex and spinal cord tissues. Moreover, PPX treatment inhibited oxidants production such as DCFH (2',7'-dichlorodihydrofluorescein) and nitrite, also decreased oxidative damage (carbonyl), and upregulated the activity of superoxide dismutase in the spinal cord. Together, our findings demonstrated the ability of dopamine D3/D2 receptor-preferring agonist in reducing pain and mood dysfunction allied to FM in mice. All experimental protocols were approved by the Universidade Federal de Santa Catarina (UFSC) Ethics Committee (approval No. 2572210218) on May 10, 2018.
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Affiliation(s)
- Carlos Pereira Martins
- Laboratory of Autoimmunity and Immunopharmacology, Department of Health Sciences, Campus Araranguá, Universidade Federal de Santa Catarina, Araranguá; Post-Graduate Program of Neuroscience, Center of Biological Sciences, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Rodrigo Sebben Paes
- Laboratory of Autoimmunity and Immunopharmacology, Department of Health Sciences, Campus Araranguá, Universidade Federal de Santa Catarina, Araranguá, SC, Brazil
| | - Gabriela Mantovani Baldasso
- Laboratory of Autoimmunity and Immunopharmacology, Department of Health Sciences, Campus Araranguá, Universidade Federal de Santa Catarina, Araranguá, SC, Brazil
| | - Eduarda Gomes Ferrarini
- Laboratory of Autoimmunity and Immunopharmacology, Department of Health Sciences, Campus Araranguá, Universidade Federal de Santa Catarina, Araranguá; Post-Graduate Program of Neuroscience, Center of Biological Sciences, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Rahisa Scussel
- Laboratory of Experimental Physiopathology, Program of Postgraduate in Science of Health, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Rubya Pereira Zaccaron
- Laboratory of Experimental Physiopathology, Program of Postgraduate in Science of Health, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Ricardo Andrez Machado-de-Ávila
- Laboratory of Experimental Physiopathology, Program of Postgraduate in Science of Health, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Paulo Cesar Lock Silveira
- Laboratory of Experimental Physiopathology, Program of Postgraduate in Science of Health, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Rafael Cypriano Dutra
- Laboratory of Autoimmunity and Immunopharmacology, Department of Health Sciences, Campus Araranguá, Universidade Federal de Santa Catarina, Araranguá; Post-Graduate Program of Neuroscience, Center of Biological Sciences, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
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Antinociceptive activity of Copaifera officinalis Jacq. L oil and kaurenoic acid in mice. Inflammopharmacology 2019; 27:829-844. [DOI: 10.1007/s10787-019-00588-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 03/16/2019] [Indexed: 11/26/2022]
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Simões RR, Kraus SI, Rosso R, Bridi A, Casoti R, Dahmer J, Morel AF, Dos Santos ARS, Zanchet EM. Root bark of Discaria americana attenuates pain: A pharmacological evidence of interaction with opioidergic system and TRP/ASIC channels. JOURNAL OF ETHNOPHARMACOLOGY 2018; 227:258-267. [PMID: 30201229 DOI: 10.1016/j.jep.2018.09.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 09/03/2018] [Accepted: 09/04/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Discaria americana (Rhamnaceae) root bark infusion have been used in traditional medicine as antipyretic, tonic, ameliorative of stomach and skin diseases and diabetes. This study was designed to investigate whether the methanolic extract of the root bark of Discaria americana (MEDa) exhibits antinociceptive effects in mice. Furthermore, it was investigated the involvement of the opioidergic system in MEDa mechanism of action as well the interactions with TRP/ASIC channels in its effect. MATERIALS AND METHODS The antinociceptive effect of intra-gastric gavage (i.g.) of MEDa (0.3-300 mg/kg) was evaluated in mice subjected to acute chemical (acetic-acid, formalin, glutamate, capsaicin, cinnamaldehyde, and acidified saline) or thermal (hot plate) tests of pain. The involvement of opioid system was evaluated in the formalin test. A nonspecific effect of MEDa was observed by measuring locomotor activity and exploratory behavior in open field test. RESULTS MEDa significantly reduced the number of writhing induced by acetic acid and inhibited the nociception in the two phases of formalin. These effects were inhibited by pretreatment with naloxone. The nociception induced by hot plate and intraplantar injection of glutamate, capsaicin, cinnamaldehyde and acidified saline were significantly inhibited by MEDa. Only the dose of 300 mg/kg altered the locomotor activity. CONCLUSIONS Our results demonstrated, for the first time, that the methanolic extract of the root bark of Discaria americana presents antinociceptive effect in chemical and thermal stimuli and its analgesic properties can be due activation of the opioidergic system. These results support the use of Discaria americana in traditional medicine and demonstrate that this plant presents a therapeutic potential for the development of phytomedicines with antinociceptive profile.
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Affiliation(s)
- Róli Rodrigues Simões
- Laboratório de Neurobiologia da Dor e Inflamação, Departamento de Ciências Fisiológicas, Universidade Federal de Santa Catarina, Florianópolis, SC 88040-900, Brazil; Faculdade Tecnológica Nova Palhoça, FATENP, Palhoça, SC, Brazil
| | - Scheila Iria Kraus
- Laboratório de Neurobiologia da Dor e Inflamação, Departamento de Ciências Fisiológicas, Universidade Federal de Santa Catarina, Florianópolis, SC 88040-900, Brazil
| | - Roberta Rosso
- Departamento de Fisiologia e Farmacologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria, RS 97105-900, Brazil
| | - Alessandra Bridi
- Departamento de Fisiologia e Farmacologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria, RS 97105-900, Brazil
| | - Rosana Casoti
- Laboratório de Farmacognosia, Faculdade de Ciências Farmacêuticas de Ribeirão Preto - Universidade de São Paulo, Ribeirão Preto, SP 14040-903, Brazil
| | - Janice Dahmer
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS 97105-900, Brazil
| | - Ademir Farias Morel
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS 97105-900, Brazil
| | - Adair Roberto Soares Dos Santos
- Laboratório de Neurobiologia da Dor e Inflamação, Departamento de Ciências Fisiológicas, Universidade Federal de Santa Catarina, Florianópolis, SC 88040-900, Brazil; Departamento de Fisiologia e Farmacologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria, RS 97105-900, Brazil
| | - Eliane Maria Zanchet
- Departamento de Fisiologia e Farmacologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria, RS 97105-900, Brazil.
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Adamante G, de Almeida AS, Rigo FK, da Silva Silveira E, Coelho YO, De Prá SDT, Milioli AM, Camponogara C, Casoti R, Bellinaso F, Desideri AV, Santos MFC, Ferreira J, Oliveira SM, Trevisan G. Diosmetin as a novel transient receptor potential vanilloid 1 antagonist with antinociceptive activity in mice. Life Sci 2018; 216:215-226. [PMID: 30447303 DOI: 10.1016/j.lfs.2018.11.029] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 11/01/2018] [Accepted: 11/12/2018] [Indexed: 01/31/2023]
Abstract
Diosmetin is an O‑methylated flavone found naturally in citrus fruit, and it was identified in Amphilophium crucigerum (L.), a plant popularly used as an analgesic. This compound had different pharmacological effects and presented a chemical structure like the flavonoid eriodyctiol that exhibited antinociceptive effects by TRPV1 antagonism. However, the possible antinociceptive effect of this compound was not well documented. Thus, the goal of the present study was to evaluate the antinociceptive effect of diosmetin and its mechanism of action. The diosmetin effect on different pain models and its possible adverse effects were assessed on adult Swiss male mice (25-30 g). Mice spinal cord samples were used on calcium influx and binding assays using TRPV1 agonists. First, it was observed that the diosmetin reduced calcium influx mediated by capsaicin in synaptosomes and displace the specific binding to [3H]-resiniferatoxin in membrane fractions from the spinal cord of mice. Diosmetin (0.15 to 1.5 mg/kg, intragastric, i.g.) presented antinociceptive and antiedematogenic effect in the capsaicin intraplantar test and induced antinociception in a noxious heat test (48 °C). Also, treatment with diosmetin reduced mechanical and heat hypersensitivity observed in a model of inflammatory or neuropathic pain. Acute diosmetin administration in mice did not induce locomotor or body temperature changes, or cause liver enzyme abnormalities or alter renal function. Moreover, there were no observed changes in gastrointestinal transit or induction of ulcerogenic activity after diosmetin administration. In conclusion, our results support the antinociceptive properties of diosmetin which seems to occur via TRPV1 antagonist in mice.
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Affiliation(s)
- Gabriela Adamante
- Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense (UNESC), 88006-000 Criciúma, SC, Brazil
| | - Amanda Spring de Almeida
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), 97105-900 Santa Maria, RS, Brazil
| | - Flávia Karine Rigo
- Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense (UNESC), 88006-000 Criciúma, SC, Brazil
| | - Edinara da Silva Silveira
- Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense (UNESC), 88006-000 Criciúma, SC, Brazil
| | - Yanka Oliveira Coelho
- Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense (UNESC), 88006-000 Criciúma, SC, Brazil
| | - Samira Dal-Toé De Prá
- Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense (UNESC), 88006-000 Criciúma, SC, Brazil
| | - Alessandra Marcone Milioli
- Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense (UNESC), 88006-000 Criciúma, SC, Brazil
| | - Camila Camponogara
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria (UFSM), 97105-900 Santa Maria, RS, Brazil
| | - Rosana Casoti
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto - Universidade de São Paulo (FCFRP-USP), 14040-903 Ribeirão Preto, SP, Brazil
| | - Fernando Bellinaso
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), 97105-900 Santa Maria, RS, Brazil
| | - Alexandre Vinhal Desideri
- Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense (UNESC), 88006-000 Criciúma, SC, Brazil
| | - Mario Ferreira Conceição Santos
- Programa de Pós-Graduação em Química, Instituto de Química de São Carlos - Universidade de São Paulo (IQSC-USP), 13560-970 São Carlos, SP, Brazil
| | - Juliano Ferreira
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Catarina (UFSC), 88049-900 Florianópolis, SC, Brazil
| | - Sara Marchesan Oliveira
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria (UFSM), 97105-900 Santa Maria, RS, Brazil
| | - Gabriela Trevisan
- Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense (UNESC), 88006-000 Criciúma, SC, Brazil; Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), 97105-900 Santa Maria, RS, Brazil.
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Antinociceptive Activities of the Methanolic Extract of the Stem Bark of Boswellia dalzielii Hutch. (Burseraceae) in Rats Are NO/cGMP/ATP-Sensitive-K + Channel Activation Dependent. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:6374907. [PMID: 29362589 PMCID: PMC5736925 DOI: 10.1155/2017/6374907] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 10/31/2017] [Accepted: 11/13/2017] [Indexed: 01/18/2023]
Abstract
Boswellia dalzielii (B. dalzielii) is traditionally used in the treatment of rheumatism, pain, and inflammation. The present investigation evaluates the property and possible mechanism of action of the methanolic extract of B. dalzielii (BDME) on inflammatory and neuropathic pain models. Effects of BDME (250 and 500 mg/kg), orally administered, were verified in mechanical hypernociception induced by LPS or PGE2. Mechanical hyperalgesia, cold allodynia, and heat hyperalgesia were used in vincristine-induced neuropathic pain. NW-nitro-L-arginine methyl ester (inhibitor of nitric oxide synthase), glibenclamide (ATP-sensitive potassium channel blocker), methylene blue (cGMP blocker), or naloxone (opioid antagonist receptor) has been used to evaluate the therapeutic effects of BDME on PGE2-induced hyperalgesia. Chemical profile of BDME was determined by using HPLC-XESI-PDA/MS. BDME showed significant antinociceptive effects in inflammatory pain caused by LPS and PGE2. The extract also significantly inhibited neuropathic pain induced by vincristine. The antinociceptive property of BDME in PGE2 model was significantly blocked by L-NAME, glibenclamide, methylene blue, or naloxone. The present work reveals the antinociceptive activities of BDME both in inflammatory and in neuropathic models of pain. This plant extract may be acting firstly by binding to opioid receptors and secondly by activating the NO/cGMP/ATP-sensitive-K+ channel pathway.
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Anti-nociceptive effect of stigmasterol in mouse models of acute and chronic pain. Naunyn Schmiedebergs Arch Pharmacol 2017; 390:1163-1172. [DOI: 10.1007/s00210-017-1416-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 08/04/2017] [Indexed: 10/24/2022]
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Tuenter E, Segers K, Kang KB, Viaene J, Sung SH, Cos P, Maes L, Heyden YV, Pieters L. Antiplasmodial Activity, Cytotoxicity and Structure-Activity Relationship Study of Cyclopeptide Alkaloids. Molecules 2017; 22:molecules22020224. [PMID: 28157177 PMCID: PMC6155665 DOI: 10.3390/molecules22020224] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 01/30/2017] [Indexed: 11/16/2022] Open
Abstract
Cyclopeptide alkaloids are polyamidic, macrocyclic compounds, containing a 13-, 14-, or 15-membered ring. The ring system consists of a hydroxystyrylamine moiety, an amino acid, and a β-hydroxy amino acid; attached to the ring is a side chain, comprised of one or two more amino acid moieties. In vitro antiplasmodial activity was shown before for several compounds belonging to this class, and in this paper the antiplasmodial and cytotoxic activities of ten more cyclopeptide alkaloids are reported. Combining these results and the IC50 values that were reported by our group previously, a library consisting of 19 cyclopeptide alkaloids was created. A qualitative SAR (structure-activity relationship) study indicated that a 13-membered macrocyclic ring is preferable over a 14-membered one. Furthermore, the presence of a β-hydroxy proline moiety could correlate with higher antiplasmodial activity, and methoxylation (or, to a lesser extent, hydroxylation) of the styrylamine moiety could be important for displaying antiplasmodial activity. In addition, QSAR (quantitative structure-activity relationship) models were developed, using PLS (partial least squares regression) and MLR (multiple linear regression). On the one hand, these models allow for the indication of the most important descriptors (molecular properties) responsible for the antiplasmodial activity. Additionally, predictions made for interesting structures did not contradict the expectations raised in the qualitative SAR study.
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Affiliation(s)
- Emmy Tuenter
- Natural Products & Food Research and Analysis (NatuRA), Department of Pharmaceutical Sciences, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium.
| | - Karen Segers
- Department of Analytical Chemistry and Pharmaceutical Technology, Center for Pharmaceutical Research (CePhaR), Vrije Universiteit Brussel-VUB, Laarbeeklaan 103, B-1090 Brussels, Belgium.
| | - Kyo Bin Kang
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea.
| | - Johan Viaene
- Department of Analytical Chemistry and Pharmaceutical Technology, Center for Pharmaceutical Research (CePhaR), Vrije Universiteit Brussel-VUB, Laarbeeklaan 103, B-1090 Brussels, Belgium.
| | - Sang Hyun Sung
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea.
| | - Paul Cos
- Laboratory of Microbiology, Parasitology and Hygiene (LMPH), Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium.
| | - Louis Maes
- Laboratory of Microbiology, Parasitology and Hygiene (LMPH), Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium.
| | - Yvan Vander Heyden
- Department of Analytical Chemistry and Pharmaceutical Technology, Center for Pharmaceutical Research (CePhaR), Vrije Universiteit Brussel-VUB, Laarbeeklaan 103, B-1090 Brussels, Belgium.
| | - Luc Pieters
- Natural Products & Food Research and Analysis (NatuRA), Department of Pharmaceutical Sciences, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium.
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De Prá SDT, Ferro PR, Milioli AM, Rigo FK, Chipindo OJ, Camponogara C, Casoti R, Manfron MP, de Oliveira SM, Ferreira J, Trevisan G. Antinociceptive activity and mechanism of action of hydroalcoholic extract and dichloromethane fraction of Amphilophium crucigerum seeds in mice. JOURNAL OF ETHNOPHARMACOLOGY 2017; 195:283-297. [PMID: 27864110 DOI: 10.1016/j.jep.2016.11.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 10/16/2016] [Accepted: 11/15/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The medicinal plant generally known as monkey's comb (Amphilophium crucigerum) has been popularly described for the treatment of neuropathic and inflammatory pain, specially seeds preparations. AIM OF THE STUDY The goal of the present study was to evaluate the antinociceptive effect of the crude extract (Crd) and dichloromethane fraction (Dcm) of A. crucigerum seeds, and investigate the involvement of transient receptor potential vanilloid 1 (TRPV1) receptor in this effect. MATERIALS AND METHODS Male Swiss mice were used in this study. The effects of Crd and Dcm was tested on capsaicin-induced Ca2+ influx or the specific binding of [3H]-resiniferatoxin. Moreover, after treatment with Crd or Dcm, animals were exposed to acute pain (hot water tail-flick and capsaicin intraplantar test) or chronic pain models (injection of complete Freund's adjuvant or partial ligation of the sciatic nerve). Acute adverse effects were also noted: locomotor activity, corporal temperature, hepatic or renal damage, gastrointestinal transit alteration, and ulcerogenic activity. RESULTS The oral administration of Crd or Dcm resulted in an antinociceptive effect in the hot water tail-flick (48°C) and capsaicin intraplantar tests. Furthermore, these preparations exhibited antinociceptive and anti-inflammatory effects in a chronic inflammatory pain model, and antinociceptive effects in a neuropathic pain model. Moreover, Crd and Dcm reduced capsaicin-induced Ca2+ influx and diminished the [3H]-resiniferatoxin specific binding to spinal cord membranes. Acute adverse events were not found with Crd or Dcm administration. CONCLUSION In conclusion, our results support the analgesic effect of A. crucigerum and suggest the presence of compounds that may act as TRPV1 antagonists.
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Affiliation(s)
- Samira Dal Toé De Prá
- Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense (Unesc), 88006-000 Criciúma (SC), Brazil.
| | - Paula Ronsani Ferro
- Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense (Unesc), 88006-000 Criciúma (SC), Brazil.
| | - Alessandra Marcon Milioli
- Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense (Unesc), 88006-000 Criciúma (SC), Brazil.
| | - Flávia Karine Rigo
- Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense (Unesc), 88006-000 Criciúma (SC), Brazil.
| | - Orlando Justo Chipindo
- Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense (Unesc), 88006-000 Criciúma (SC), Brazil.
| | - Camila Camponogara
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria (UFSM), 97105-900 Santa Maria (RS), Brazil.
| | - Rosana Casoti
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade de São Paulo (USP - Ribeirão Preto), 14040-903 Ribeirão Preto (SP), Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Santa Maria (UFSM), 97105-900 Santa Maria (RS), Brazil.
| | - Melânia Palermo Manfron
- Programa de Pós-Graduação em Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Santa Maria (UFSM), 97105-900 Santa Maria (RS), Brazil.
| | - Sara Marchesan de Oliveira
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria (UFSM), 97105-900 Santa Maria (RS), Brazil.
| | - Juliano Ferreira
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Catarina (UFSC), 88049-900 Florianópolis (RS), Brazil.
| | - Gabriela Trevisan
- Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense (Unesc), 88006-000 Criciúma (SC), Brazil; Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), 97105-900 Santa Maria (RS), Brazil.
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Teimouri A, Najari B, Chermahini AN, Farrokhpour H. Selective Complexation of S-block Cations with Nanotubular Silk Type Cyclopeptides: A DFT Study. J CHIN CHEM SOC-TAIP 2015. [DOI: 10.1002/jccs.201500176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Rosa SG, Quines CB, da Rocha JT, Bortolatto CF, Duarte T, Nogueira CW. Antinociceptive action of diphenyl diselenide in the nociception induced by neonatal administration of monosodium glutamate in rats. Eur J Pharmacol 2015; 758:64-71. [DOI: 10.1016/j.ejphar.2015.03.060] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 02/13/2015] [Accepted: 03/14/2015] [Indexed: 12/21/2022]
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Chemical constituents from Waltheria indica exert in vitro activity against Trypanosoma brucei and T. cruzi. Fitoterapia 2015; 105:55-60. [PMID: 26072041 DOI: 10.1016/j.fitote.2015.06.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 06/08/2015] [Accepted: 06/09/2015] [Indexed: 01/02/2023]
Abstract
Six extracts from the roots and the aerial parts of Waltheria indica L. (Malvaceae) were screened for their in vitro antitrypanosomal activity towards Trypanosoma brucei brucei STIB 427 strain, T. brucei rhodesiense STIB 900 and Trypanosoma cruzi Tulahuen C4. The dichloromethane extract from the roots showed the highest activity against T. cruzi (IC50=0.74 μg/mL) as well as a good selectivity index (SI value of 35). Based on these results, this extract was fractionated and led to the isolation of three alkaloids (adouetin X (1), waltheriones A (2) and C (3)) and three pentacyclic triterpene derivatives (betulinic acid (4), 3β-acetoxy-27-trans-caffeoyloxyolean-12-en-28-oic acid methyl ester (5) and 3β-acetoxy-27-cis-caffeoyloxyolean-12-en-28-oic acid methyl ester (6)) identified by 1D and 2D NMR, UV, IR and MS analyses. Among these, waltherione C exhibited the highest and selective antitrypanosomal activity towards T. cruzi (IC50=1.93 μM) with low cytotoxicity (IC50=101.23 μM), resulting in a selectivity index value of 52. Waltherione C conforms to hit activity criteria with respect to T. cruzi as required by the WHO/TDR.
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Singh N, Kaushik NK, Mohanakrishnan D, Tiwari SK, Sahal D. Antiplasmodial activity of medicinal plants from Chhotanagpur plateau, Jharkhand, India. JOURNAL OF ETHNOPHARMACOLOGY 2015; 165:152-162. [PMID: 25721804 DOI: 10.1016/j.jep.2015.02.038] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 02/13/2015] [Accepted: 02/14/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND The alarmingly increasing problem of drug resistance in treatment of malaria has led to an urgent need for identifying new anti-malarial drugs for both prophylaxis and chemotherapy. AIM OF THE STUDY The present study presents a systematic exploration of the ex vivo blood stage antiplasmodial potential of medicinal plants to corroborate their traditional usage against malaria in Jharkhand, India. METHODS An ethnobotanical survey in and around Ranchi was done to grasp the traditional knowledge of medicinal plants used by local healers for malaria, other fevers and for other medicinal purposes like, antiamoebic, antihelmenthic, antidote to poisons, etc. Following the survey, the selected 22 plant samples were extracted in ethanol for studying ex vivo SYBR Green I fluorescence assay based anti-plasmodial activity against both chloroquine-sensitive Pf3D7 and chloroquine resistant PfINDO strains of Plasmodium falciparum grown in human red blood cell cultures. Cytotoxicity was determined against HeLa and L929 cells using MTT assay. Further the most potent extract was chromatographed on reverse phase HPLC towards antiplasmodial activity guided purification of metabolites. RESULTS Of the 22 plant species assayed, the highest antiplasmodial activity (Pf3D7IC50 ≤ 5 µg/ml) was seen in leaf ethanol extracts of Corymbia citriodora (Hook.) K.D.Hill & L.A.S.Johnson, Calotropis procera (Aiton) Dryand. and Annona squamosa L. and bark ethanol extract of Holarrhena pubescens Wall. ex G.Don. Leaf ethanol extract of H. pubescens, bark ethanol extract of Pongamia pinnata (L.) Pierre and whole plant ethanol extract of Partheniumhysterophorus L. showed promising activity (IC50 6-10 µg/ml). Good antiplasmodial activity (IC50: 11-20 µg/ml) was observed in leaf ethanol extract of Bryophyllum pinnatum (Lam.) Oken and whole plant ethanol extract of Catharanthus roseus (L.) G.Don. The extracts of plants showing highest to good antiplasmodial activity exhibited HeLa/Pf3D7 selectivity indices of the order of 20-45. Bioassay guided fractionation of P. hysterophorus led to fivefold enrichment of antiplasmodial activities (IC50 ~450 ng/ml) in some fractions. CONCLUSION These results provide confirmation to the traditional usage of some medicinal plants against malaria in areas around Ranchi, Jharkhand.
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Affiliation(s)
- Niharika Singh
- Malaria Research Group, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Naveen Kumar Kaushik
- Malaria Research Group, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Dinesh Mohanakrishnan
- Malaria Research Group, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Santosh Kumar Tiwari
- Department of Genetics, Mahrishi Dayanand University, Rohtak, Haryana 124001, India
| | - Dinkar Sahal
- Malaria Research Group, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi 110067, India.
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Trypanosoma evansi infection impairs memory, increases anxiety behaviour and alters neurochemical parameters in rats. Parasitology 2015; 140:1432-41. [PMID: 23965823 DOI: 10.1017/s003118201300108x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The aim of this study was to investigate neurochemical and enzymatic changes in rats infected with Trypanosoma evansi, and their interference in the cognitive parameters. Behavioural assessment (assessment of cognitive performance), evaluation of cerebral L-[3H]glutamate uptake, acetylcholinesterase (AChE) activity and Ca+2 and Na+, K+-ATPase activity were evaluated at 5 and 30 days post infection (dpi). This study demonstrates a cognitive impairment in rats infected with T. evansi. At 5 dpi memory deficit was demonstrated by an inhibitory avoidance test. With the chronicity of the disease (30 dpi) animals showed anxiety symptoms. It is possible the inhibition of cerebral Na+, K+-ATPase activity, AChE and synaptosomal glutamate uptake are involved in cognitive impairment in infected rats by T. evansi. The understanding of cerebral host–parasite relationship may shed some light on the cryptic symptoms of animals and possibly human infection where patients often present with other central nervous system (CNS) disorders.
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Carvalho FB, Gutierres JM, Bohnert C, Zago AM, Abdalla FH, Vieira JM, Palma HE, Oliveira SM, Spanevello RM, Duarte MM, Lopes ST, Aiello G, Amaral MG, Pippi NL, Andrade CM. Anthocyanins suppress the secretion of proinflammatory mediators and oxidative stress, and restore ion pump activities in demyelination. J Nutr Biochem 2015; 26:378-90. [DOI: 10.1016/j.jnutbio.2014.11.006] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 10/09/2014] [Accepted: 11/13/2014] [Indexed: 12/23/2022]
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25
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Shahangi F, Chermahini AN, Farrokhpour H, Teimouri A. Selective complexation of alkaline earth metal ions with nanotubular cyclopeptides: DFT theoretical study. RSC Adv 2015. [DOI: 10.1039/c4ra08302d] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
The interaction of alkaline earth metal cations including Be2+, Mg2+, Ca2+, Sr2+ and Ba2+ with cyclic peptides containing 3 or 4 (S) alanine molecules (CyAla3 and CyAla4) was investigated by density functional theory (DFT-CAM-B3LYP and DFT-B3LYP).
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Affiliation(s)
- Fereshte Shahangi
- Department of Chemistry
- Isfahan University of Technology
- Isfahan 84156-83111
- Iran
| | | | - Hossein Farrokhpour
- Department of Chemistry
- Isfahan University of Technology
- Isfahan 84156-83111
- Iran
| | - Abbas Teimouri
- Chemistry Department
- Payame Noor University
- 19395-4697 Tehran
- Iran
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26
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Boligon AA, Pimentel VC, Bagatini MD, Athayde ML. Effect of Scutia buxifolia Reissek in nucleotidase activities and inhibition of platelet aggregation. J Nat Med 2014; 69:46-54. [DOI: 10.1007/s11418-014-0858-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Accepted: 07/16/2014] [Indexed: 12/22/2022]
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27
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Gutierres JM, Carvalho FB, Schetinger MRC, Marisco P, Agostinho P, Rodrigues M, Rubin MA, Schmatz R, da Silva CR, de P. Cognato G, Farias JG, Signor C, Morsch VM, Mazzanti CM, Bogo M, Bonan CD, Spanevello R. Anthocyanins restore behavioral and biochemical changes caused by streptozotocin-induced sporadic dementia of Alzheimer's type. Life Sci 2014; 96:7-17. [DOI: 10.1016/j.lfs.2013.11.014] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 10/26/2013] [Accepted: 11/14/2013] [Indexed: 12/20/2022]
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28
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Gutierres JM, Carvalho FB, Schetinger MRC, Agostinho P, Marisco PC, Vieira JM, Rosa MM, Bohnert C, Rubin MA, Morsch VM, Spanevello R, Mazzanti CM. Neuroprotective effect of anthocyanins on acetylcholinesterase activity and attenuation of scopolamine-induced amnesia in rats. Int J Dev Neurosci 2013; 33:88-97. [PMID: 24374256 DOI: 10.1016/j.ijdevneu.2013.12.006] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 12/15/2013] [Accepted: 12/16/2013] [Indexed: 11/24/2022] Open
Abstract
Anthocyanins are a group of natural phenolic compounds responsible for the color to plants and fruits. These compounds might have beneficial effects on memory and have antioxidant properties. In the present study we have investigated the therapeutic efficacy of anthocyanins in an animal model of cognitive deficits, associated to Alzheimer's disease, induced by scopolamine. We evaluated whether anthocyanins protect the effects caused by SCO on nitrite/nitrate (NOx) levels and Na(+),K(+)-ATPase and Ca(2+)-ATPase and acetylcholinesterase (AChE) activities in the cerebral cortex and hippocampus (of rats. We used 4 different groups of animals: control (CTRL), anthocyanins treated (ANT), scopolamine-challenged (SCO), and scopolamine+anthocyanins (SCO+ANT). After seven days of treatment with ANT (200mgkg(-1); oral), the animals were SCO injected (1mgkg(-1); IP) and were performed the behavior tests, and submitted to euthanasia. A memory deficit was found in SCO group, but ANT treatment prevented this impairment of memory (P<0.05). The ANT treatment per se had an anxiolytic effect. AChE activity was increased in both in cortex and hippocampus of SCO group, this effect was significantly attenuated by ANT (P<0.05). SCO decreased Na(+),K(+)-ATPase and Ca(2+)-ATPase activities in hippocampus, and ANT was able to significantly (P<0.05) prevent these effects. No significant alteration was found on NOx levels among the groups. In conclusion, the ANT is able to regulate cholinergic neurotransmission and restore the Na(+),K(+)-ATPase and Ca(2+)-ATPase activities, and also prevented memory deficits caused by scopolamine administration.
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Affiliation(s)
- Jessié M Gutierres
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria RS 97105-900, Brazil.
| | - Fabiano B Carvalho
- Setor de Bioquímica e Biologia Molecular do Laboratório de Terapia Celular, Centro de Ciências Rurais, Universidade Federal de Santa Maria, Santa Maria RS 97105-900, Brazil
| | - Maria Rosa C Schetinger
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria RS 97105-900, Brazil
| | - Paula Agostinho
- Center for Neuroscience and Cell Biology, Faculty of Medicine, Biochemistry Institute, University of Coimbra, 3004 Coimbra, Portugal
| | - Patricia C Marisco
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria RS 97105-900, Brazil
| | - Juliano M Vieira
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria RS 97105-900, Brazil
| | - Michele M Rosa
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria RS 97105-900, Brazil
| | - Crystiani Bohnert
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria RS 97105-900, Brazil
| | - Maribel A Rubin
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria RS 97105-900, Brazil
| | - Vera M Morsch
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria RS 97105-900, Brazil
| | - Roselia Spanevello
- Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Campus Universitário, Capão do Leão, Pelotas RS 96010-900, Brazil
| | - Cinthia M Mazzanti
- Setor de Bioquímica e Biologia Molecular do Laboratório de Terapia Celular, Centro de Ciências Rurais, Universidade Federal de Santa Maria, Santa Maria RS 97105-900, Brazil.
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29
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de Freitas RB, da Costa Araldi IC, Boligon AA, de Brum TF, Rovani BT, Piana M, Zadra M, Athayde ML, de Freitas Bauermann L. Phytochemical analysis and toxicity investigation of stem bark ofScutia buxifoliaReissek. Nat Prod Res 2013; 27:1620-4. [DOI: 10.1080/14786419.2012.742080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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30
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de Freitas RB, Rovani BT, Boligon AA, de Brum TF, Piana M, da Silva Jesus R, Veloso CF, Kober H, Moresco RN, da Costa Araldi IC, de Freitas Bauermann L, Athayde ML. Hepatotoxicity evaluation of aqueous extract from Scutia buxifolia. Molecules 2013; 18:7570-83. [PMID: 23812249 PMCID: PMC6269775 DOI: 10.3390/molecules18077570] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Revised: 06/16/2013] [Accepted: 06/17/2013] [Indexed: 02/07/2023] Open
Abstract
Nowadays there is an increase in the number of people taking herbals worldwide. Scutia buxifolia is used for the treatment of hypertension, but little is known about its action on liver. Thirty-two Wistar rats were divided into four groups: control and groups treated during 30 days with 100, 200 and 400 mg of lyophilized aqueous extract of S. buxifolia (SBSB)/kg of body weight. This study was planned to explore hepatotoxic effect of SBSB, which was assessed by serum transaminases (ALT and AST). Thiobarbituric acid reactive substances (TBARS) levels were determined in liver, along with thiols content (NPSH), catalase (CAT) activity and, superoxide dismutase (SOD) enzymes. Histopathological studies of liver tissue were performed. Flavonoids and phenolics were quantified in SBSB by high performance liquid chromatography with diode array detection (HPLC/DAD). We did not observe alterations on redox status (TBARS, NPSH, CAT and, SOD) in the control and experimental groups. An increase on AST activity was only observed at 200 mg of SBSB, whereas ALT score was not affected by SBSB. Moreover, no morphological alterations were observed on the hepatocytes, matching the analysed biochemical parameters. This way, we conclude that SBSB was not toxic.
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Affiliation(s)
- Robson Borba de Freitas
- Graduate Program in Pharmaceutical Sciences, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil
| | - Bruno Tomazele Rovani
- Graduate Program in Pharmaceutical Sciences, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil
| | - Aline Augusti Boligon
- Graduate Program in Pharmaceutical Sciences, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil
| | - Thiele Faccim de Brum
- Graduate Program in Pharmaceutical Sciences, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil
| | - Mariana Piana
- Graduate Program in Pharmaceutical Sciences, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil
| | - Roberta da Silva Jesus
- Graduate Program in Pharmaceutical Sciences, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil
| | - Carolina Fantinel Veloso
- Graduate Program in Human Communication Disorders, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil
| | - Helena Kober
- Graduate Program in Pharmacology, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil
| | - Rafael Noal Moresco
- Department of Clinical and Toxicological Analysis, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil
| | - Isabel Cristina da Costa Araldi
- Department of Physiology and Farmacology, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil
| | - Liliane de Freitas Bauermann
- Department of Physiology and Farmacology, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil
| | - Margareth Linde Athayde
- Department of Industrial Pharmacy, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil
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31
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Selective complexation of alkali metal ions and nanotubular cyclopeptides: a DFT study. J INCL PHENOM MACRO 2013. [DOI: 10.1007/s10847-013-0346-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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32
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Trevisan G, Rossato MF, Walker CIB, Oliveira SM, Rosa F, Tonello R, Silva CR, Machado P, Boligon AA, Martins MAP, Zanatta N, Bonacorso HG, Athayde ML, Rubin MA, Calixto JB, Ferreira J. A novel, potent, oral active and safe antinociceptive pyrazole targeting kappa opioid receptors. Neuropharmacology 2013; 73:261-73. [PMID: 23791558 DOI: 10.1016/j.neuropharm.2013.06.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Revised: 05/28/2013] [Accepted: 06/06/2013] [Indexed: 11/26/2022]
Abstract
Pyrazole compounds are an intriguing class of compounds with potential analgesic activity; however, their mechanism of action remains unknown. Thus, the goal of this study was to explore the antinociceptive potential, safety and mechanism of action of novel 1-pyrazole methyl ester derivatives, which were designed by molecular simplification, using in vivo and in vitro methods in mice. First, tree 1-pyrazole methyl ester derivatives (DMPE, MPFE, and MPCIE) were tested in the capsaicin test and all presented antinociceptive effect; however the MPClE (methyl 5-trichloromethyl-3-methyl-1H-pyrazole-1-carboxylate) was the most effective. Thus, we selected this compound to assess the effects and mechanisms in subsequent pain models. MPCIE produced antinociception when administered by oral, intraperitoneal, intrathecal and intraplantar routes and was effective in the capsaicin and the acetic acid-induced nociception tests. Moreover, this compound reduced the hyperalgesia in diverse clinically-relevant pain models, including postoperative, inflammatory, and neuropathic nociception in mice. The antinociception produced by orally administered MPClE was mediated by κ-opioid receptors, since these effects were prevented by systemically pre-treatment with naloxone and the κ-opioid receptor antagonist nor-binaltorphimine. Moreover, MPCIE prevented binding of the κ-opioid ligand [(3)H]-CI-977 in vitro (IC₅₀ of 0.68 (0.32-1.4) μM), but not the TRPV1 ([(3)H]-resiniferatoxin) or the α₂-adrenoreceptor ([(3)H]-idazoxan) binding. Regarding the drug-induced side effects, oral administration of MPClE did not produce sedation, constipation or motor impairment at its active dose. In addition, MPCIE was readily absorbed after oral administration. Taken together, these results demonstrate that MPClE is a novel, potent, orally active and safe analgesic drug that targets κ-opioid receptors.
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Affiliation(s)
- Gabriela Trevisan
- Graduate Program in Biological Sciences - Toxicological Biochemistry, Department of Chemistry, Federal University of Santa Maria, 97105-900 Santa Maria, RS, Brazil
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33
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Jaques JADS, Doleski PH, Castilhos LG, da Rosa MM, Souza VDCG, Carvalho FB, Marisco P, Thorstenberg MLP, Rezer JFP, Ruchel JB, Coradini K, Beck RCR, Rubin MA, Schetinger MRC, Leal DBR. Free and nanoencapsulated curcumin prevents cigarette smoke-induced cognitive impairment and redox imbalance. Neurobiol Learn Mem 2013; 100:98-107. [PMID: 23261855 DOI: 10.1016/j.nlm.2012.12.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Revised: 11/21/2012] [Accepted: 12/10/2012] [Indexed: 11/17/2022]
Abstract
Cigarette smoke-exposure promotes neurobiological changes associated with neurocognitive abnormalities. Curcumin, a natural polyphenol, have shown to be able to prevent cigarette smoke-induced cognitive impairment. Here, we investigated possible mechanisms involved in curcumin protection against cigarette smoke-induced cognitive impairment and, due to its poor bioavailability, we investigated the potential of using curcumin-loaded lipid-core nanocapsules (C-LNC) suspension. Rats were treated with curcumin and cigarette smoke, once a day, 5 days each week, for 30 days. Animals were divided into ten groups: I, control (vehicle/corn oil); II, curcumin 12.5mg/kg; III, curcumin 25mg/kg; IV, curcumin 50mg/kg; V, C-LNC 4 mg/kg; VI, tobacco exposed; VII, curcumin 12.5mg/kg along with tobacco exposure; VIII, curcumin 25mg/kg along with tobacco exposure; IX, curcumin 50mg/kg along with tobacco exposure; X, C-LNC 4 mg/kg along with tobacco exposure. Cigarette smoke-exposure impaired object recognition memory (P<0.001), indicated by the low recognition index, increased biomarkers of oxidative/nitrosative stress such as TBARS (P<0.05) and NOx (P<0.01), decreased antioxidant defenses such as NPSH content (P<0.01) and SOD activity (P<0.01) and inhibited the activities of enzymes involved in ion homeostasis such as Na(+),K(+)-ATPase and Ca(2+)-ATPase. Both curcumin formulations (free and nanoencapsulated) prevented the memory impairment, the redox imbalance and the alterations observed in the ATPases activities. Maintenance of ion homeostasis and redox balance is involved in the protective mechanism of curcumin against tobacco-induced cognitive impairment. Our results suggest that curcumin is a potential therapeutic agent for neurocognition and that C-LNC may be an alternative to its poor bioavailability.
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Affiliation(s)
- Jeandre Augusto dos Santos Jaques
- Centro de Ciências da Saúde, Departamento de Microbiologia e Parasitologia, Programa de Pós-Graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria, Campus Universitário, Camobi, Prédio 20, Sala 4229, RS, Brazil
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34
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Boligon AA, Brum TFD, Zadra M, Piana M, Alves CFDS, Fausto VP, Júnior VDSB, Vaucher RDA, Santos RCV, Athayde ML. Antimicrobial activity of Scutia buxifolia against the honeybee pathogen Paenibacillus larvae. J Invertebr Pathol 2013; 112:105-7. [DOI: 10.1016/j.jip.2012.11.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Revised: 11/01/2012] [Accepted: 11/17/2012] [Indexed: 10/27/2022]
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35
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Cyclo-hexa-peptides at the water/cyclohexane interface: a molecular dynamics simulation. J Mol Model 2012; 19:601-11. [DOI: 10.1007/s00894-012-1588-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Accepted: 08/28/2012] [Indexed: 10/27/2022]
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36
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Panseeta P, Lomchoey K, Prabpai S, Kongsaeree P, Suksamrarn A, Ruchirawat S, Suksamrarn S. Antiplasmodial and antimycobacterial cyclopeptide alkaloids from the root of Ziziphus mauritiana. PHYTOCHEMISTRY 2011; 72:909-15. [PMID: 21450320 DOI: 10.1016/j.phytochem.2011.03.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2010] [Revised: 01/26/2011] [Accepted: 03/02/2011] [Indexed: 05/22/2023]
Abstract
Investigation of the MeOH extract obtained from the root of the Ziziphus mauritiana grown in Thailand resulted in the isolation of two 14- and 13-membered cyclic alkaloids, mauritine L (1) and mauritine M (2), and three known cyclopeptide alkaloids, nummularines H (3), B (4) and hemsine A (5). Their structures were elucidated on the basis of extensive NMR spectroscopic analysis. The first single crystal X-ray diffraction study of the 13-membered ring cyclopeptide, nummularine B methiodide (4'), revealed all S configurations on the amino acid residues. The isolated alkaloids exhibited potent antiplasmodial activity against the parasite Plasmodium falciparum with the inhibitory concentration (IC50) ranging from 3.7 to 10.3 μM. Compounds 2 and 3 also demonstrated antimycobacterial activity against Mycobacterium tuberculosis with the MIC of 72.8 and 4.5 μM, respectively.
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Affiliation(s)
- Panomwan Panseeta
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Srinakharinwirot University, Bangkok 10110, Thailand
| | - Kanlaya Lomchoey
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Srinakharinwirot University, Bangkok 10110, Thailand
| | - Samran Prabpai
- Department of Chemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Palangpon Kongsaeree
- Department of Chemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand; Center for Excellence in Protein Structure and Function, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Apichart Suksamrarn
- Department of Chemistry, Faculty of Science, Ramkhamhaeng University, Bangkok 10240, Thailand
| | - Somsak Ruchirawat
- Chulabhorn Research Institute, Chemical Biology Program, Center for Environmental Health, Toxicology and Management of Chemicals (ETM), Chulabhorn Graduate Institute, Vipavadee Rangsit Highway, Bangkok 10210, Thailand
| | - Sunit Suksamrarn
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Srinakharinwirot University, Bangkok 10110, Thailand
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Maldaner G, Marangon P, Ilha V, Caro MSB, Burrow RA, Dalcol II, Morel AF. Cyclopeptide alkaloids from Scutia buxifolia Reiss. PHYTOCHEMISTRY 2011; 72:804-809. [PMID: 21420695 DOI: 10.1016/j.phytochem.2011.02.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2010] [Revised: 02/12/2011] [Accepted: 02/21/2011] [Indexed: 05/30/2023]
Abstract
Scutianene E (1), 3,4,28-tris-epi-scutiaene E (2), 28-epi-scutianene E (3) and scutianene L (4), four neutral cyclopeptide alkaloids, were isolated from Scutia buxifolia Reiss, together with four known cyclopeptide alkaloids, scutianines B, C, D and E. Scutianenes 1-3 are diastereoisomeric compounds, with 3-hydroxyleucine as a β-hydroxy amino acid unit, which is connected to the styryl fragment via an ether bridge, β-phenylserine, as a common ring-bonded amino acid residue. Attached to the amino group of β-hydroxyamino acid is a side chain [trans-CH=CH-Ph]. The structures of the peptides were elucidated by means of spectroscopic analysis, including extensive 2D NMR studies. The stereochemistry for the diastereomeric 3,4,28-tris-epi-scutiaene E and 28-epi-scutianene E was confirmed by X-ray diffraction analysis of their O-acetyl derivatives.
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Affiliation(s)
- Graciela Maldaner
- Departamento de Química (NPPN), Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
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38
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Antinociceptive effect of Brazilian armed spider venom toxin Tx3-3 in animal models of neuropathic pain. Pain 2011; 152:2224-2232. [PMID: 21570770 DOI: 10.1016/j.pain.2011.04.015] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2010] [Revised: 02/04/2011] [Accepted: 04/08/2011] [Indexed: 11/23/2022]
Abstract
Venoms peptides have produced exceptional sources for drug development to treat pain. In this study we examined the antinociceptive and side effects of Tx3-3, a peptide toxin isolated from Phoneutria nigriventer venom, which inhibits high-voltage-dependent calcium channels (VDCC), preferentially P/Q and R-type VDCC. We tested the effects of Tx3-3 in animal models of nociceptive (tail-flick test), neuropathic (partial sciatic nerve ligation and streptozotocin-induced diabetic neuropathy), and inflammatory (intraplantar complete Freund's adjuvant) pain. In the tail-flick test, both intrathecal (i.t.) and intracerebroventricular (i.c.v.) injection of Tx3-3 in mice caused a short-lasting effect (ED(50) and 95% confidence intervals of 8.8 [4.1-18.8] and 3.7 [1.6-8.4] pmol/site for i.t. and i.c.v. injection, respectively), without impairing motor functions, at least at doses 10-30 times higher than the effective dose. By comparison, ω-conotoxin MVIIC, a P/Q and N-type VDCC blocker derived from Conus magus venom, caused significant motor impairment at doses close to efficacious dose in tail flick test. Tx3-3 showed a long-lasting antinociceptive effect in neuropathic pain models. Intrathecal injection of Tx3-3 (30 pmol/site) decreased both mechanical allodynia produced by sciatic nerve injury in mice and streptozotocin-induced allodynia in mice and rats. On the other hand, i.t. injection of Tx3-3 did not alter inflammatory pain. Taken together, our data show that Tx3-3 shows prevalent antinociceptive effects in the neuropathic pain models and does not cause adverse motor effects at antinociceptive efficacious doses, suggesting that this peptide toxin holds promise as a novel therapeutic agent for the control of neuropathic pain. The Brazilian armed spider Tx3-3, a new P/Q and R-type calcium channel blocker, effectively alleviates allodynia in animal neuropathic pain models.
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Wang Y, Niu L, Li Y, Mao X, Yang Y, Wang C. Single molecule studies of cyclic peptides using molecular matrix at liquid/solid interface by scanning tunneling microscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:16305-16311. [PMID: 20593799 DOI: 10.1021/la101467s] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We report in this work the single molecule studies of cyclic peptide, cyclosporine A (CsA), using a molecular network formed by star-shaped oligofluorene (StOF-COOH(3)) at the liquid/solid interface by scanning tunneling microscopy (STM). Individual cyclosporine A can be identified and resolved in the molecular network, and the high-resolution STM images of CsA show polygon-like characteristics with a diameter of approximately 1.7 nm. Furthermore, the complex of CsA and Mg(2+) has also been observed to adsorb inside of the molecular matrix. The STM results reveal two adsorption characteristics for the CsA-Mg(2+) complex, which is suggestive of asymmetrical configurations of the complex. The difference in binding energy between the two observed adsorption configurations is estimated to be 1.88 kJ·mol(-1). These results help set the stage for studying the fine structures and functions of various cyclic peptides at the liquid/solid interface.
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Affiliation(s)
- Yibing Wang
- National Center for Nanoscience and Technology, Beijing 100190, PR China
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Evano G, Toumi M, Coste A. Copper-catalyzed cyclization reactions for the synthesis of alkaloids. Chem Commun (Camb) 2009:4166-75. [DOI: 10.1039/b905601g] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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