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Toledo Martins Pereira M, Sardou Charret T, Freimann Wermelinger G, Soares Ribeiro Nogueira T, Kaufmann Robbs B, Carvalho Castiglione R, Loureiro Simões R, Dantas Machado RL, Curcino Vieira IJ, Abreu LS, D'Avila Bitencourt Pascoal V, Rheder Fagundes Pascoal AC. Evaluation of the Antiproliferative Potential of Yellow Jaboticaba (Myrciaria glazioviana) Extracts Against Human Cervical Cancer (HeLa cells line) and the Analysis of Their Chemical Composition by HPLC-HRESIMS. Chem Biodivers 2024; 21:e202301467. [PMID: 38471006 DOI: 10.1002/cbdv.202301467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 03/11/2024] [Accepted: 03/12/2024] [Indexed: 03/14/2024]
Abstract
Cervical cancer is a specific type of cancer that affects women around the world, with an incidence of 604 thousand new cases per year and 341 thousand deaths. There is a high demand for new effective antineoplastic drugs with few side effects. In this sense, recent research highlights the potential of compounds of natural origin in treating and preventing different types of cancer. Myrciaria glazioviana is a Brazilian native species belonging to the Myrtaceae family, which has previously described biological activities such as antimicrobial, anti-inflammatory, and antioxidant properties. This study aims to evaluate the anticancer activity of the dichloromethane extract (MGD) and ethyl acetate extract (MGA) of M. glazioviana leaves against human cervical cancer cell line (HeLa), as well as to identify their bioactive compounds. Using HPLC-HRESIMS technique, ten compounds were characterized in both samples: quinic acid, ellagic acid, Tri-O-methyl ellagic acid, two derivatives of Tetra-O-methyl flavellagic acid, quercetrin, Di-O-methyl ellagic acid, and three derivatives of pentamethyl coruleoellagic acid. Through MTT assays using HeLa cells and NIH/3T3 cells, it was observed that MGD and MGA were selective against tumor cells, with IC50 values of 24.31 and 12.62 μg/mL, respectively. The samples induced the tumor cell death by apoptosis, as evidenced by the activation of caspases 3/7, cell shrinkage, and pyknotic nuclei. Both samples were also able to inhibit the migration of HeLa cells after 24 hours of treatment, indicating a potential antimetastatic effect. Therefore, the present research highlights the antiproliferative and antimigratory potential of this species against HeLa cells.
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Affiliation(s)
- Mariana Toledo Martins Pereira
- Graduate Program in Science and Biotechnology, Institute of Biology, UFF, Niterói, Rio de Janeiro, Brazil
- Research Laboratory of Natural Products and Bioactive Molecules, Nova Friburgo Health Institute, UFF, Nova Friburgo, Rio de Janeiro, Brazil
| | - Thiago Sardou Charret
- Graduate Program in Science and Biotechnology, Institute of Biology, UFF, Niterói, Rio de Janeiro, Brazil
- Research Laboratory of Natural Products and Bioactive Molecules, Nova Friburgo Health Institute, UFF, Nova Friburgo, Rio de Janeiro, Brazil
| | | | | | - Bruno Kaufmann Robbs
- Multiuser Biomedical Research Laboratory, Nova Friburgo Health Institute, UFF, Nova Friburgo, Rio de Janeiro, Brazil
| | - Raquel Carvalho Castiglione
- Laboratory for Clinical and Experimental Research on Vascular Biology (BioVasc), Biomedical Center, State University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Rafael Loureiro Simões
- Laboratory for Cellular and Molecular Pharmacology, Biomedical Center, State University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ricardo Luiz Dantas Machado
- Graduate Program in Science and Biotechnology, Institute of Biology, UFF, Niterói, Rio de Janeiro, Brazil
- Department of Microbiology and Parasitology, Institute of Biology, UFF, Niterói, Rio de Janeiro, Brazil
| | - Ivo José Curcino Vieira
- Laboratory of Chemical Sciences, Center for Exact Sciences and Technology, UENF, Campos dos Goytacazes, Brazil
| | - Lucas Silva Abreu
- Natural Products Chemistry Laboratory, Institute of Chemistry, UFF, Niterói, Rio de Janeiro, Brazil
| | - Vinicius D'Avila Bitencourt Pascoal
- Graduate Program in Science and Biotechnology, Institute of Biology, UFF, Niterói, Rio de Janeiro, Brazil
- Research Laboratory of Natural Products and Bioactive Molecules, Nova Friburgo Health Institute, UFF, Nova Friburgo, Rio de Janeiro, Brazil
- Multiuser Biomedical Research Laboratory, Nova Friburgo Health Institute, UFF, Nova Friburgo, Rio de Janeiro, Brazil
| | - Aislan Cristina Rheder Fagundes Pascoal
- Graduate Program in Science and Biotechnology, Institute of Biology, UFF, Niterói, Rio de Janeiro, Brazil
- Research Laboratory of Natural Products and Bioactive Molecules, Nova Friburgo Health Institute, UFF, Nova Friburgo, Rio de Janeiro, Brazil
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Lauria PSS, Gomes JDM, Abreu LS, Santana RC, Nunes VLC, Couto RD, Colavolpe PO, Silva MSD, Soares MBP, Villarreal CF. Ayahuasca and its major component harmine promote antinociceptive effects in mouse models of acute and chronic pain. JOURNAL OF ETHNOPHARMACOLOGY 2024; 323:117710. [PMID: 38184028 DOI: 10.1016/j.jep.2024.117710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/20/2023] [Accepted: 01/02/2024] [Indexed: 01/08/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ayahuasca (AYA) is a psychedelic brew used in religious ceremonies. It is broadly used as a sacred medicine for treating several ailments, including pain of various origins. AIM OF THE STUDY To investigate the antinociceptive effects of AYA and its mechanisms in preclinical models of acute and chronic pain in mice, in particular during experimental neuropathy. MATERIALS AND METHODS The antinociceptive effects of AYA administered orally were assessed in the following models of pain: formalin test, Complete Freund's Adjuvant (CFA)-induced inflammation, tail flick test, and partial sciatic nerve ligation model of neuropathic pain. Antagonism assays and Fos immunohistochemistry in the brain were performed. AYA-induced toxicity was investigated. AYA was chemically characterized. The antinociceptive effect of harmine, the major component present in AYA, was investigated. RESULTS AYA (24-3000 μL/kg) dose-dependently reduced formalin-induced pain-like behaviors and CFA-induced mechanical allodynia but did not affect CFA-induced paw edema or tail flick latency. During experimental neuropathy, single treatments with AYA (24-3000 μL/kg) reduced mechanical allodynia; daily treatments once or twice a day for 14 days promoted consistent and sustained antinociception. The antinociceptive effect of AYA (600 μL/kg) was reverted by bicuculline (1 mg/kg) and methysergide (5 mg/kg), but not by naloxone (5 mg/kg), phaclofen (2 mg/kg), and rimonabant (10 mg/kg), suggesting the roles of GABAA and serotonergic receptors. AYA increased Fos expression in the ventrolateral periaqueductal gray and nucleus raphe magnus after 1 h, but not after 6 h or 14 days of daily treatments. AYA (600 μL/kg) twice a day for 14 days did not alter mice's motor function, spontaneous locomotion, body weight, food and water intake, hematological, biochemical, and histopathological parameters. Harmine (3.5 mg/kg) promoted consistent antinociception during experimental neuropathy. CONCLUSIONS AYA promotes consistent antinociceptive effects in different mouse models of pain without inducing detectable toxic effects. Harmine is at least partially accountable for the antinociceptive properties of AYA.
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Affiliation(s)
| | - Juliana de Medeiros Gomes
- Department of Pharmaceutical Sciences, Federal University of Paraíba, 58.050-585, João Pessoa, PB, Brazil.
| | - Lucas Silva Abreu
- Chemistry Institute, Fluminense Federal University, 24.020-150, Niterói, RJ, Brazil.
| | | | | | - Ricardo David Couto
- School of Pharmacy, Federal University of Bahia, 40.170-115, Salvador, BA, Brazil; School of Medicine, University Center of Technology and Science, 41.800-700, Salvador, BA, Brazil.
| | | | - Marcelo Sobral da Silva
- Department of Pharmaceutical Sciences, Federal University of Paraíba, 58.050-585, João Pessoa, PB, Brazil.
| | - Milena Botelho Pereira Soares
- Gonçalo Moniz Institute, FIOCRUZ, 40.296-710, Salvador, BA, Brazil; Institute of Advanced Systems in Health, SENAI CIMATEC, 41.650-010, Salvador, BA, Brazil.
| | - Cristiane Flora Villarreal
- School of Pharmacy, Federal University of Bahia, 40.170-115, Salvador, BA, Brazil; Gonçalo Moniz Institute, FIOCRUZ, 40.296-710, Salvador, BA, Brazil.
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de Souza TA, Rodrigues GCS, de Souza PHN, Abreu LS, Pereira LCO, da Silva MS, Tavares JF, Scotti L, Scotti MT. Mass Spectrometry-Based Investigation of Sugarcane Exposed to Five Different Pesticides. Life (Basel) 2023; 13:life13041034. [PMID: 37109563 PMCID: PMC10145413 DOI: 10.3390/life13041034] [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: 02/10/2023] [Revised: 04/01/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
The use of agrochemicals has become a standard practice worldwide to ensure the productivity and quality of sugarcane crops. This study aimed to analyze the metabolic changes in sugarcane culms treated with five different nematicides. The experimental design was randomized in blocks, and agro-industrial and biometric variables were evaluated. The samples were extracted and then analyzed using LC-MS, LC-MS/MS, and LC-HRMS. The data obtained were submitted to statistical methods (PCA and PLS). Fragmentation patterns, retention time, and UV absorptions of the main features were analyzed. The plantations treated with carbosulfan (T4) obtained higher agricultural productivity and total recoverable sugar (TRS), while the use of benfuracarb (T3) was associated with lower growth and lower TRS. Statistical analysis revealed the contribution of the features at m/z 353 and m/z 515, assigned as chlorogenic acids, which discriminated the groups. The MS profile also supported the occurrence of flavonoids (C-glycosides and O-glycosides) in the samples.
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Affiliation(s)
- Thalisson A de Souza
- Multi-User Laboratory for Characterization and Analysis, Program of Natural and Synthetic Bioactive Products (PgPNSB), Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil
| | - Gabriela C S Rodrigues
- Laboratory of Cheminformatics, Program of Natural and Synthetic Bioactive Products (PgPNSB), Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil
| | - Pedro H N de Souza
- Miriri Alimentos e Bioenergia S/A, Fazenda Miriri, Zona Rural, Santa Rita 58300-970, PB, Brazil
| | - Lucas S Abreu
- Department of Organic Chemistry, Fluminense Federal University, Niteroi 24220-900, RJ, Brazil
| | - Laiane C O Pereira
- Multi-User Laboratory for Characterization and Analysis, Program of Natural and Synthetic Bioactive Products (PgPNSB), Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil
| | - Marcelo S da Silva
- Multi-User Laboratory for Characterization and Analysis, Program of Natural and Synthetic Bioactive Products (PgPNSB), Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil
| | - Josean F Tavares
- Multi-User Laboratory for Characterization and Analysis, Program of Natural and Synthetic Bioactive Products (PgPNSB), Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil
| | - Luciana Scotti
- Laboratory of Cheminformatics, Program of Natural and Synthetic Bioactive Products (PgPNSB), Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil
| | - Marcus Tullius Scotti
- Laboratory of Cheminformatics, Program of Natural and Synthetic Bioactive Products (PgPNSB), Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil
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Sannomiya M, Rodrigues CM, Oliveira GCA, Carvalho JCS, da Costa LS, Spadari CDC, Ferreira MJP, Vilegas W, Ishida K. Galloylquinic acid derivatives from Byrsonima fagifolia leaf extract and potential antifungal activity. JOURNAL OF ETHNOPHARMACOLOGY 2022; 297:115534. [PMID: 35842178 DOI: 10.1016/j.jep.2022.115534] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 06/30/2022] [Accepted: 07/10/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Byrsonima fagifolia Niedenzu (Malpighiaceae) and other Byrsonima species are popularly employed in Brazilian traditional medicine in the form of preparations as cicatrizing, anti-inflammatory, and antimicrobial. AIM OF THE STUDY To characterize the phytochemical profile of the hydromethanolic extract obtained from B. fagifolia leaves (BF extract) and to evaluate the toxicity and the antifungal activity. MATERIALS AND METHODS The compounds from BF extract were isolated by HPLC and the structures were elucidated based on extensive analyses of 1D and 2D NMR spectra (HMQC, HMBC and COSY) data. The antifungal effect was determined by the broth microdilution method and the toxicity was evaluated on erythrocytes from sheep's blood and Galleria mellonella larvae. RESULTS Phytochemical investigation of the BF extract led to the isolation and characterization of pyrogallol, n-butyl gallate, 3,4-di-O-galloylquinic acid, 3,5-di-O-galloylquinic acid, 3,4,5-tri-O-galloylquinic acid, and 1,3,4,5-tetra-O-galloylquinic acid. The BF extract showed high content of galloylquinic acid derivatives reaching more than twenty-times the quercetin derivatives content, according to the quantification by HPLC. These galloylquinic acid derivatives, obtained during this study, and quercetin derivatives, previously isolated, were submitted to the antifungal assays. The BF extract inhibited yeast growth mainly against Cryptococcus spp., at concentrations of 1-16 μg/mL, comparable to isolated compounds galloylquinic acid derivatives. However, the quercetin derivatives as well as quinic acid, gallic acid, and methyl gallate showed lower antifungal effect compared with galloylquinic derivatives. In addition, the BF extract had no hemolytic effect and no toxicity on G. mellonella. CONCLUSION The phytochemical analysis revealed that galloylquinic acid derivatives are the major compounds in the leaves of B. fagifolia and they are associated to anti-cryptococcal activity and presented reduced toxicity.
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Affiliation(s)
- Miriam Sannomiya
- School of Arts, Sciences and Humanities, University of São Paulo, São Paulo/SP, Brazil.
| | - Clenilson Martins Rodrigues
- Laboratory of Chemistry and Biomass and Biofuels, Embrapa Agroenergy, Brazilian Agricultural Research Corporation, Brasília/DF, Brazil.
| | | | | | - Letícia Serafim da Costa
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo/SP, Brazil.
| | - Cristina de Castro Spadari
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo/SP, Brazil.
| | | | - Wagner Vilegas
- Institute of Biosciences, São Paulo State University, Coastal Campus of São Vicente/SP, Brazil.
| | - Kelly Ishida
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo/SP, Brazil.
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Dantas CAG, Abreu LS, da Cunha HN, Veloso CAG, Souto AL, de Fátima Agra M, de Oliveira Costa VC, da Silva MS, Tavares JF. Dereplication of phenolic derivatives of three Erythroxylum species using liquid chromatography coupled with ESI-MS n and HRESIMS. PHYTOCHEMICAL ANALYSIS : PCA 2021; 32:1011-1026. [PMID: 33738879 DOI: 10.1002/pca.3043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 01/21/2021] [Accepted: 02/22/2021] [Indexed: 06/12/2023]
Abstract
INTRODUCTION Given the diversity of secondary metabolites produced by species of the genus Erythroxylum, in addition to the many methods that have already been described in the literature, modern screening and identification methodologies, such as dereplication, represent an efficient and quick strategy compared to the classic techniques linked to natural product research. OBJECTIVE The objective of the present study was to determine the phenolic profiles obtained from three species of Erythroxylum (Erythroxylum pauferrense Plowman, Erythroxylum pulchrum A.St.-Hil. and Erythroxylum simonis Plowman) by dereplication using liquid chromatography coupled with ESI-MSn and HRESIMS. MATERIAL AND METHODS Ethyl acetate and n-butanolic fractions from crude ethanolic extract of Erythroxylum species were analyzed by HPLC-ESI-MSn and HPLC-HRESIMS, in order to identify its corresponding compounds. Experiments were performed in negative ionization mode, and the metabolites were provisionally identified based on deprotonated molecules, molecular formulas, fragmentation patterns and literature data. The corresponding isolated compounds were characterized by 1 H and 13 C NMR spectroscopy. RESULTS According to the dereplication method, it was possible to establish and compare the phenolic profile of the corresponding species by the assignment of 55 compounds, most of which were first described in these species and among which some were also new to the Erytroxylum genus. Additionally, nine compounds were isolated, including biphenyl-3,3',4,4'-tetraol, where the mass spectral data were not sufficient for their identification, and reported for the first time in the Erythroxylaceae family. CONCLUSION This research contributes to the phytochemical knowledge of the Erythroxylum genus and demonstrates the importance of the dereplication method regarding the investigation of natural products, enabling accurate identification of the metabolites while avoiding the efforts and material expenses involved in the isolation of known compounds.
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Affiliation(s)
- César Augusto Gonçalves Dantas
- Programa de Pós-Graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, João Pessoa, PB, 58051-900, Brazil
| | - Lucas Silva Abreu
- Programa de Pós-Graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, João Pessoa, PB, 58051-900, Brazil
| | - Hidna Nascimento da Cunha
- Programa de Pós-Graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, João Pessoa, PB, 58051-900, Brazil
| | - Carlos Arthur Gouveia Veloso
- Programa de Pós-Graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, João Pessoa, PB, 58051-900, Brazil
| | - Augusto Lopes Souto
- Programa de Pós-Graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, João Pessoa, PB, 58051-900, Brazil
| | - Maria de Fátima Agra
- Programa de Pós-Graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, João Pessoa, PB, 58051-900, Brazil
| | - Vicente Carlos de Oliveira Costa
- Programa de Pós-Graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, João Pessoa, PB, 58051-900, Brazil
| | - Marcelo Sobral da Silva
- Programa de Pós-Graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, João Pessoa, PB, 58051-900, Brazil
| | - Josean Fechine Tavares
- Programa de Pós-Graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, João Pessoa, PB, 58051-900, Brazil
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A Hydroethanolic Leaf Extract of Persicaria lanigera Possesses Antinociceptive Activity through Cytokine and Glutamatergic Pathways In Vivo. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:5586789. [PMID: 34239580 PMCID: PMC8235975 DOI: 10.1155/2021/5586789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/16/2021] [Accepted: 06/09/2021] [Indexed: 11/18/2022]
Abstract
Persicaria lanigera is used traditionally to treat pain. The antinociceptive properties of the hydroethanolic leaf extract of Persicaria lanigera (PLE) were evaluated in rats and mice. Mice were pretreated orally with PLE (30, 100, and 300 mg kg−1) and evaluated for antinociceptive effects in the acetic acid-, glutamate-, and formalin-induced nociception models. Additionally, mechanical hyperalgesia models were used to evaluate PLE's influence on TNF-α- and IL-1β-induced hyperalgesia in rats. In the acetic acid-induced nociception model, 100 mg kg−1 PLE exhibited the highest antinociceptive activity of 95.13 ± 9.52% at p < 0.0001, followed by the 300 mg kg−1 (85.44 ± 5.75%; p < 0.0001) and then the 30 mg kg−1 (67.95 ± 18.55%; p < 0.01), compared to morphine 3 mg kg−1 i.p. (86.97 ± 9.52; p < 0.0001). PLE (30, 100, and 300 mg kg−1) also showed significant (p < 0.05) antinociceptive effect in phase two of the formalin-induced nociception with % inhibitions of 66.88 ± 12.17, 75.12 ± 9.01, and 89.12 ± 4.32%, respectively, compared to 3 mg/kg morphine (97.09 ± 2.84%). Similarly, PLE (30, 100, and 300 mg kg−1) significantly reduced pain in the glutamate-induced nociception model with % inhibitions of 79.28 ± 8.17, 90.54 ± 5.64, and 96.49 ± 1.43%, respectively, whereas ketamine (5 mg/kg i.p.) reduced nociception to be 59.94 ± 18.14%. All doses of PLE significantly reduced nociceptive scores in TNF-α- and IL-1β-induced mechanical hyperalgesia (p < 0.01). Similarly, PLE significantly inhibited bradykinin-induced nociception. The hydroethanolic extract of Persicaria lanigera has antinociceptive effects; this is the first scientific report providing evidence to validate its traditional use for the management of pain.
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Patil P, Killedar S. Chitosan and glyceryl monooleate nanostructures containing gallic acid isolated from amla fruit: targeted delivery system. Heliyon 2021; 7:e06526. [PMID: 33851042 PMCID: PMC8024605 DOI: 10.1016/j.heliyon.2021.e06526] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/11/2020] [Accepted: 03/11/2021] [Indexed: 12/03/2022] Open
Abstract
Gallic acid, active constituent of amla fruit its natural abundance with beneficial multi actions in body make them attractive for clinical applications. In present study, we focused on extracting, separating and characterizing gallic acid from amla and further formulated into chitosan nanoparticles, so bring it to increase its aqueous solubility and thereby bioactivity. Gallic acid nanoparticles were prepared by using poloxamer 407, chitosan and Glyceryl Monooleate (GMO) using probe sonicator and high pressure homogenization method. Prepared nanoparticles were characterized by particle size, zeta potential, DSC, XRD, SEM, entrapment efficiency, loading content, in-vitro release and stability study. They showed approximately 76.80% encapsulation of gallic acid with average size of 180.8 ± 0.21 nm, and zeta potential +24.2 mV. The cumulative in vitro drug release upto 24 hrs 77.16% was achieved suggesting that from all our findings, it can be concluded that work will facilitate extraction, design and fabrication of nanoparticles for protection and sustained release of gallic acid particularly to colonic region.
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Affiliation(s)
- Poournima Patil
- Department of Pharmaceutical Chemistry, Bharati Vidyapeeth College of Pharmacy, Kolhapur Maharashtra, India
| | - Suresh Killedar
- Department of Pharmacognosy, Shree Sant Gajanan Maharaj College of Pharmacy, Gadhiglaj Mahagaon Maharashtra, India
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Methyl gallate attenuates inflammation induced by Toll-like receptor ligands by inhibiting MAPK and NF-Κb signaling pathways. Inflamm Res 2020; 69:1257-1270. [PMID: 33037469 DOI: 10.1007/s00011-020-01407-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 07/20/2020] [Accepted: 10/01/2020] [Indexed: 01/06/2023] Open
Abstract
OBJECTIVE AND DESIGN Methyl gallate (MG) is a prevalent polyphenol in the plant kingdom, which may be related to the effects of several medicinal plants. Although it is widely reported that polyphenols have therapeutic effects, there are few studies demonstrating that MG has anti-inflammatory action. This study aimed to investigate the molecular mechanism behind the anti-inflammatory activity of MG and its effect on hyperalgesia. METHODS Swiss mice were pretreated orally with different doses of MG and subjected to i.pl. injection of zymosan to induce paw edema. RAW264.7 macrophages and BMDMs stimulated with different TLR agonists such as zymosan, LPS, or Pam3CSK4 were used to investigate the molecular mechanisms of MG RESULTS: MG inhibits zymosan-induced paw edema and hyperalgesia and modulates molecular pathways crucial for inflammation development. Pretreatment with MG inhibited cytokines production and NF-κB activity by RAW 264.7 cells stimulated with zymosan, Pam3CSK4 or LPS, but not with PMA. Moreover, pretreatment with MG decreased IκB degradation, nuclear translocation of NF-κBp65, c-jun and c-fos and ERK1/2, p38 and JNK phosphorylation. CONCLUSION Thus, the results of this study demonstrate that MG has a promising anti-inflammatory effect and suggests an explanation of its mechanism of action through the inhibition of NF-κB signaling and the MAPK pathway.
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Bilić VL, Gašić U, Milojković-Opsenica D, Nemet I, Rončević S, Kosalec I, Rodriguez JV. First Extensive Polyphenolic Profile of Erodium cicutarium with Novel Insights to Elemental Composition and Antioxidant Activity. Chem Biodivers 2020; 17:e2000280. [PMID: 32634273 DOI: 10.1002/cbdv.202000280] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 07/07/2020] [Indexed: 01/22/2023]
Abstract
Erodium cicutarium is known for its total polyphenolic content, but this work reveals the first highly detailed profile of E. cicutarium, obtained with UHPLC-LTQ OrbiTrap MS4 and UHPLC-QqQ-MS/MS techniques. A total of 85 phenolic compounds were identified and 17 constituents were quantified. Overall, 25 new compounds were found, which have not yet been reported for the Erodium genera, or the family Geraniaceae. Along with methanolic extracts, the so far poorly investigated water extracts exhibited in vitro antioxidant activity according to all performed assays, including the ferric reducing/antioxidant power assay (FRAP), 2,2-diphenyl-1-picrylhydrazyl assay (DPPH), 2,2'-azinobis(3-ethylbenzthiazoline-6-sulfonic acid) assay (ABTS) and cupric ion reducing antioxidant capacity assay (CUPRAC). Elemental composition analysis performed with inductively coupled plasma atomic emission spectrometry (ICP-AES) and, additionally, hydride generation atomic absorption spectrometry (HydrEA-ETAAS) showed six most abundant elements to be decreasing as follows: Mg>Ca>K>S>P>Na, and gave first data regarding inorganic arsenic content (109.3-248.4 ng g-1 ). These results suggest E. cicutarium to be a valuable source of various phenolic compounds with substantial potential for further bioactivity testing.
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Affiliation(s)
- Vanja Ljoljić Bilić
- Department of Microbiology, University of Zagreb, Faculty of Pharmacy and Biochemistry, Schrottova 39, 10000, Zagreb, Croatia
| | - Uroš Gašić
- Department of Analytical Chemistry, University of Belgrade, Faculty of Chemistry, Studentski trg 12-16, P.O. Box 51, 11158, Belgrade, Serbia.,Present address: Department of Plant Physiology, Institute for Biological Research "Siniša Stanković", National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060, Belgrade, Serbia
| | - Dušanka Milojković-Opsenica
- Department of Analytical Chemistry, University of Belgrade, Faculty of Chemistry, Studentski trg 12-16, P.O. Box 51, 11158, Belgrade, Serbia
| | - Ivan Nemet
- Department of Chemistry - Division of Analytical Chemistry, University of Zagreb, Faculty of Science, Horvatovac 102A, 10000, Zagreb, Croatia
| | - Sanda Rončević
- Department of Chemistry - Division of Analytical Chemistry, University of Zagreb, Faculty of Science, Horvatovac 102A, 10000, Zagreb, Croatia
| | - Ivan Kosalec
- Department of Microbiology, University of Zagreb, Faculty of Pharmacy and Biochemistry, Schrottova 39, 10000, Zagreb, Croatia
| | - Jadranka Vuković Rodriguez
- Department of Pharmaceutical Analysis, University of Zagreb, Faculty of Pharmacy and Biochemistry, A. Kovačića 1, 10000, Zagreb, Croatia
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