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Muñoz-Molina N, Parada J, Simirgiotis M, Montecinos-González R. The Potential of Using Cochayuyo ( Durvillaea incurvata) Extract Obtained by Ultrasound-Assisted Extraction to Fight against Aging-Related Diseases. Foods 2024; 13:269. [PMID: 38254569 PMCID: PMC10814528 DOI: 10.3390/foods13020269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 12/30/2023] [Accepted: 01/10/2024] [Indexed: 01/24/2024] Open
Abstract
The world's population is in a demographical transition, with an increase in the number of older adults and prevalence of diseases related to aging. This study evaluated in vitro the potential of using Durvillaea incurvata extract (extracted using ultrasound-assisted extraction) to inhibit key enzymes associated with the development of age-related diseases. Our results show that an extract extracted via ultrasound-assisted extracted, as well as an extract conventional extracted from Durvillaea incurvata, presented antidiabetes potential by exhibiting inhibitory activity against α-glucosidase (91.8 ± 1.0% and 93.8 ± 0.3%, respectively, at 500 µg/mL) and α-amylase (42.2 ± 1.4% and 61.9 ± 0.9%, respectively, at 1500 µg/mL) enzymes related to starch digestion and postprandial glycemic response. Also, the extracts showed inhibitory activity against the enzymes acetylcholinesterase (51.5% and 50.8%, respectively, at 500 µg/mL) and butyrylcholinesterase (32.8% and 34.4%, respectively, at 0.5 mg/mL), the biomarkers associated with Alzheimer's disease, and angiotensin-converting enzyme (98.7 ± 7.4% and 93.0 ± 3.4%, respectively, at 2.0 mg/mL), which is key in the regulation of vascular tone and blood pressure and helps to prevent the development of hypertension. In conclusion, the extract of Durvillaea incurvata obtained from ultrasound-assisted extraction has the potential to prevent the development of age-related pathologies such as diabetes, Alzheimer's disease, and hypertension.
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Affiliation(s)
- Nicolás Muñoz-Molina
- Graduate School, Faculty of Agricultural and Food Sciences, Universidad Austral de Chile, Valdivia 5090000, Chile;
| | - Javier Parada
- Institute of Food Science and Technology, Faculty of Agricultural and Food Sciences, Universidad Austral de Chile, Valdivia 5090000, Chile;
| | - Mario Simirgiotis
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Valdivia 5090000, Chile;
| | - Romina Montecinos-González
- Institute of Food Science and Technology, Faculty of Agricultural and Food Sciences, Universidad Austral de Chile, Valdivia 5090000, Chile;
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Pacheco LV, Parada J, Pérez-Correa JR, Mariotti-Celis MS, Simirgiotis M. Cochayuyo ( Durvillaea incurvata) Extracts: Their Impact on Starch Breakdown and Antioxidant Activity in Pasta during In Vitro Digestion. Foods 2023; 12:3326. [PMID: 37761035 PMCID: PMC10529413 DOI: 10.3390/foods12183326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 08/23/2023] [Accepted: 08/27/2023] [Indexed: 09/29/2023] Open
Abstract
Seaweeds, notably cochayuyo (Durvillaea incurvata), are recognized for their rich macro- and micronutrient content, along with their inhibitory effects on the α-glucosidase enzyme. The present study aims to evaluate the effectiveness of this inhibition in actual starchy food products under in vitro gastrointestinal conditions. This study utilized freeze-dried cochayuyo, extracted using hot pressurized liquid extraction with 50% ethanol at 120 °C and 1500 psi. The inhibition mechanism of α-glucosidase was determined, and the polyphenol composition of the extract was analyzed using Ultra-High-Performance Liquid Chromatography. This study further evaluated the extract's impact on starch digestibility, total phenolic content, and antioxidant capacity in pasta (noodles) as representative starchy food under gastrointestinal conditions. The results indicate that the α-glucosidase inhibition mechanism is of mixed type. Phenolic compounds, primarily tetraphloroethol, could contribute to this anti-enzymatic activity. The extract was observed to decrease starch digestibility, indicated by a lower rate constant (0.0158 vs. 0.0261 min-1) and digested starch at an infinite time (77.4 vs. 80.5 g/100 g). A significant increase (~1200 vs. ~390 µmol TROLOX/100 g) in antioxidant activity was also noted during digestion when the extract was used. Thus, this study suggests that the cochayuyo extract can reduce starch digestion and enhance antioxidant capacity under gastrointestinal conditions.
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Affiliation(s)
- Luz Verónica Pacheco
- Graduate School, Faculty of Agricultural and Food Sciences, Universidad Austral de Chile, Valdivia 5090000, Chile;
| | - Javier Parada
- Institute of Food Science and Technology, Faculty of Agricultural and Food Sciences, Universidad Austral de Chile, Valdivia 5090000, Chile
| | - José R. Pérez-Correa
- Department of Chemical and Bioprocess Engineering, Pontificia Universidad Católica de Chile, Santiago 7810000, Chile;
| | | | - Mario Simirgiotis
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Valdivia 5090000, Chile;
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Simirgiotis M. Review for "Identification of lignans and quality assessment in <i>Dendrobium officinale</i> under different cultivation modes". 2023. [DOI: 10.1002/rcm.9541/v2/review1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Sepulveda B, Benites D, Albornoz L, Simirgiotis M, Castro O, Garcia-Beltran O, Areche C. Green ultrasound-assisted extraction of lichen substances from Hypotrachyna cirrhata. Ethyl lactate, a better extracting agent than methanol toxic organic solvent? Nat Prod Res 2023; 37:159-163. [PMID: 34319194 DOI: 10.1080/14786419.2021.1956922] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
For the first time, we report a green extraction of lichen substances assisted by high power ultrasounds from Hypotrachyna cirrhata using ethyl lactate. This sustainable alternative was comparable, both in isolation and detection of lichen substances, to methanol. In the metabolomic analysis, a total of 77 lichen substances were detected comprising depsides, depsidones, dibenzofurans, organic acids, and lipids. Although the UHPLC/ESI/MS profiles were similar, the antioxidant activity was higher for the ethyl lactate extract. Ethyl lactate can replace toxic organic solvents, such as methanol, in order to provide more sustainable green chemistry methods.
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Affiliation(s)
- Beatriz Sepulveda
- Departamento de Ciencias Químicas, Universidad Andrés Bello, Viña del Mar, Chile
| | - Derin Benites
- Escuela de Química, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Laura Albornoz
- Departmento de Química, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Mario Simirgiotis
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Olivio Castro
- Escuela de Química, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Olimpo Garcia-Beltran
- Facultad de Ciencias Naturales y Matemáticas, Universidad de Ibagué, Ibagué, Colombia
| | - Carlos Areche
- Departmento de Química, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
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Simirgiotis M. Review for "Identification of lignans and quality assessment in <i>Dendrobium officinale</i> under different cultivation modes". 2022. [DOI: 10.1002/rcm.9541/v1/review2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Castañeta G, Sepulveda B, Vargas R, Garcia-Beltran O, Simirgiotis M, Areche C. A sustainable application for the extraction of lichen metabolites from Usnea cornuta: nontargeted metabolomics and antioxidant activity. Nat Prod Res 2022; 37:2076-2082. [PMID: 36008873 DOI: 10.1080/14786419.2022.2116703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
In this study, isolation and purification of lichen substances from Usnea cornuta were performed using conventional solvents, green solvents and green technologies. In addition, several lichen compounds were tentatively identified by UHPLC/ESI/MS/MS and usnic acid, diffractaic and galbinic acids were quantified as well. Limonene, ethyl lactate and methanol, were compared regarding their extraction properties and antioxidant capacities, determined by DPPH, ORAC, and FRAP assays. In the ethyl lactate, methanol and limonene extracts, 28 compounds in all, were detected for the first time by high resolution UHPLC-MS/MS fingerprinting. Untargeted metabolomics tentatively identified 14 compounds from the methanolic extract, 4 from limonene extract, and 20 metabolites from ethyl lactate extract. The green extract of ethyl lactate showed a similar antioxidant capacity to toxic methanol extract, except at ORAC assay where it was higher. Therefore, ethyl lactate can replace methanol, to provide more sustainable green chemistry methods.
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Affiliation(s)
- Grover Castañeta
- Departmento de Química, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Beatriz Sepulveda
- Departamento de Ciencias Químicas, Universidad Andrés Bello, Quillota, Chile
| | - Reinaldo Vargas
- Departamento de Biología, Universidad Metropolitana de Ciencias de la Educación, Santiago, Chile
| | - Olimpo Garcia-Beltran
- Facultad de Ciencias Naturales y Matemáticas, Universidad de Ibagué, Ibagué, Colombia
| | - Mario Simirgiotis
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Carlos Areche
- Departmento de Química, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
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Muñoz MA, Simirgiotis M, Joseph-Nathan P. Vibrational Circular Dichroism Similarity-Guided Absolute Configuration Determination of 11-Acyloxytremetones. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221095342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Although tremetone [5-acetyl-2-(1-methylvinyl)-2,3-dihydrobenzofuran] has only one stereogenic center, the absolute configuration (AC) determination of its naturally occurring 11-acyloxy derivatives 1 and 2 by vibrational circular dichroism (VCD) turned out to be difficult. Similarity-based comparison of the experimental VCD spectrum of 11-coumaryloxytremetone (1), isolated from Parastrephia quadrangularis, with spectra calculated using popular density functional theory (DFT) levels of theory, provided poor enantiomeric similarity indices ( ESI), even when the p-coumaroyl ester group of 1 was replaced by the acetyl group in 2. In search for a better understanding of these results, IR-guided individual scaling factors (ISFs), recently introduced as part of the Vibrational Spectra Similarity and Analysis Tool (VISSAT) software, were used to correct DFT frequencies, while a VCD-guided conformational analysis was developed to explore conformational preferences. These studies showed that for both molecules 72% of the individual conformations gave ESI values in favor of the ( R) enantiomer. Likewise, when conformer abundances were optimized to produce the best possible similarity for each enantiomer, the obtained ESI values were always larger for the ( R) isomer than for the ( S) isomer. These results point toward the ( R) AC in both compounds and highlight the incorrect conformer abundance prediction by DFT calculations as the potential source of the initial difficulties. In addition, the AC of 1 was independently verified using the Flack and Hooft parameters gained after a single-crystal x-ray diffraction (XRD) study.
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Affiliation(s)
- Marcelo A. Muñoz
- Instituto de Ciencias Químicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Mario Simirgiotis
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Pedro Joseph-Nathan
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico
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Cornejo A, Caballero J, Simirgiotis M, Torres V, Sánchez L, Díaz N, Guimaraes M, Hernández M, Areche C, Alfaro S, Caballero L, Melo F. Dammarane triterpenes targeting α-synuclein: biological activity and evaluation of binding sites by molecular docking. J Enzyme Inhib Med Chem 2021; 36:154-162. [PMID: 33307873 PMCID: PMC7738290 DOI: 10.1080/14756366.2020.1851216] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 11/09/2020] [Accepted: 11/10/2020] [Indexed: 01/09/2023] Open
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder that affects adult people whose treatment is palliative. Thus, we decided to test three dammarane triterpenes 1, 1a, 1b, and we determined that 1 and 1a inhibit β-aggregation through thioflavine T rather than 1b. Since compound 1 was most active, we determined the interaction between α-synuclein and 1 at 50 µM (Kd) through microscale thermophoresis. Also, we observed differences in height and diameter of aggregates, and α-synuclein remains unfolded in the presence of 1. Also, aggregates treated with 1 do not provoke neurites' retraction in N2a cells previously induced by retinoic acid. Finally, we studied the potential sites of interaction between 1 with α-synuclein fibrils using molecular modelling. Docking experiments suggest that 1 preferably interact with the site 2 of α-synuclein through hydrogen bonds with residues Y39 and T44.
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Affiliation(s)
- Alberto Cornejo
- Escuela de Tecnología Médica, Facultad de Medicina, Universidad Andres Bello, Laboratorio Catem V, Santiago, Chile
| | - Julio Caballero
- Departamento de Bioinformática, Facultad de Ingeniería, Centro de Bioinformática, Simulación y Modelado (CBSM), Universidad de Talca, Talca, Chile
| | - Mario Simirgiotis
- Facultad de Ciencias, Instituto de Farmacia, Universidad Austral de Chile, Valdivia, Chile
| | - Vanessa Torres
- Escuela de Tecnología Médica, Facultad de Medicina, Universidad Andres Bello, Laboratorio Catem V, Santiago, Chile
| | - Luisa Sánchez
- Escuela de Tecnología Médica, Facultad de Medicina, Universidad Andres Bello, Laboratorio Catem V, Santiago, Chile
| | - Nicolás Díaz
- Escuela de Tecnología Médica, Facultad de Medicina, Universidad Andres Bello, Laboratorio Catem V, Santiago, Chile
| | - Marcela Guimaraes
- Department of Science and Technology, Federal University of São Paulo, São José dos Campos, Brazil
| | - Marcos Hernández
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Carlos Areche
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Sergio Alfaro
- Doctorado en Ciencias, mención Modelado de Sistemas Químicos y Biológicos, Centro de Bioinformática, Simulación y Modelado (CBSM), Facultad de Ingeniería, Universidad de Talca, Talca, Chile
| | - Leonardo Caballero
- Departamento de Física and Soft Matter Research Center, SMAT-C, Universidad de Santiago, Santiago, Chile
| | - Francisco Melo
- Departamento de Física and Soft Matter Research Center, SMAT-C, Universidad de Santiago, Santiago, Chile
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Sabando C, Rodríguez-Díaz M, Ide W, Pastene E, Avello M, Simirgiotis M, Rojas S, Villarroel E, Silva-Grecchi T, Gutiérrez C, Bouza R, Cicchelli B, González M, Rodríguez-Llamazares S. Improvement of endothelial function by Gunnera tinctoria extract with antioxidant properties. Biol Res 2020; 53:55. [PMID: 33228801 PMCID: PMC7684749 DOI: 10.1186/s40659-020-00322-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 11/18/2020] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Gunnera tinctoria has been collected by Mapuche-Pewenche people for food and medicinal purposes. The high polyphenol content of methanolic extract from G. tinctoria leaves with chemical constituents such as ellagic acid and quercetin derivatives suggests its application to prevent endothelial dysfunction and oxidative stress. The aim of this study was to provide evidence of the protective effect of this extract on endothelial function by reducing oxidative stress induced by high D-glucose and H2O2, as well as by stimulating nitric oxide (NO) levels in human umbilical vein endothelial cells (HUVECs). RESULTS A methanolic extract with a high content of polyphenols (520 ± 30 mg gallic acid equivalents/g dry extract) was obtained from G. tinctoria leaves. Its main constituent was ellagic acid. The results of Ferric reducing antioxidant power and 2,2-diphenyl-1-picrylhydrazyl radical scavenging assays of the extract confirmed its antioxidant activity by inhibition pathway of radical species. The incubation of HUVECs with the extract decreased the apoptosis and reactive oxygen species (ROS) synthesis induced by high extracellular concentration of D-glucose or hydrogen peroxide. The extract increased endothelial NO levels and reduced vasoconstriction in human placental vessels. CONCLUSIONS This study provides evidence about the antioxidant and endothelial protective properties of methanolic G. tinctoria leaf extract. The extract improves the availability of NO in HUVECs, inhibiting the production of ROS and vasoconstriction.
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Affiliation(s)
- Constanza Sabando
- Centro de Investigación de Polímeros Avanzados (CIPA), Avda. Collao 1202, Edificio de Laboratorios, Concepción, Chile
| | | | - Walther Ide
- Centro de Investigación de Polímeros Avanzados (CIPA), Avda. Collao 1202, Edificio de Laboratorios, Concepción, Chile
| | - Edgar Pastene
- Laboratorio de Farmacognosia, Departamento de Farmacia, Facultad de Farmacia, Universidad de Concepción, Concepción, Chile.,Laboratorio de Síntesis y Biotransformación de Productos Naturales, Universidad del Bío-Bío, Avda. Andrés Bello 720, Chillán, Chile
| | - Marcia Avello
- Laboratorio de Farmacognosia, Departamento de Farmacia, Facultad de Farmacia, Universidad de Concepción, Concepción, Chile
| | - Mario Simirgiotis
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Susana Rojas
- Laboratorio de Fisiología Vascular, Departamento de Fisiología, Facultad de Ciencias Biológicas, Universidad de Concepción, P.O. Box 160-C, Concepción, Chile
| | - Enrique Villarroel
- Laboratorio de Fisiología Vascular, Departamento de Fisiología, Facultad de Ciencias Biológicas, Universidad de Concepción, P.O. Box 160-C, Concepción, Chile
| | - Tiare Silva-Grecchi
- Laboratorio de Screening de Compuestos Neuroactivos, Departamento de Fisiología, Facultad de Ciencias Biológicas, Universidad de Concepción, P.O. Box 160-C, Concepción, Chile
| | - Cristian Gutiérrez
- Departamento de Microbiología, Facultad de Ciencias Biológicas, Universidad de Concepción, P.O. Box 160-C, Concepción, Chile
| | - Rebeca Bouza
- Departamento de Física, E.U.P. Ferrol, Universidad de A Coruña, Avda. 19 de Febrero, s/n, 15405, Ferrol, Spain
| | - Bárbara Cicchelli
- Laboratorio de Investigación Materno-Fetal (LIMaF), Departamento de Obstetricia y Ginecología, Facultad de Medicina, Universidad de Concepción, P.O. Box 160-C, Concepción, Chile
| | - Marcelo González
- Laboratorio de Fisiología Vascular, Departamento de Fisiología, Facultad de Ciencias Biológicas, Universidad de Concepción, P.O. Box 160-C, Concepción, Chile. .,Laboratorio de Investigación Materno-Fetal (LIMaF), Departamento de Obstetricia y Ginecología, Facultad de Medicina, Universidad de Concepción, P.O. Box 160-C, Concepción, Chile. .,Group of Research and Innovation in Vascular Health (GRIVAS Health), Chillán, Chile.
| | - Saddys Rodríguez-Llamazares
- Centro de Investigación de Polímeros Avanzados (CIPA), Avda. Collao 1202, Edificio de Laboratorios, Concepción, Chile. .,Unidad de Desarrollo Tecnológico, Universidad de Concepción, Avda. Cordillera 2634, Coronel, Chile.
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Quesada-Romero L, Fernández-Galleguillos C, Bergmann J, Amorós ME, Jiménez-Aspee F, González A, Simirgiotis M, Rossini C. Phenolic Fingerprinting, Antioxidant, and Deterrent Potentials of Persicaria maculosa Extracts. Molecules 2020; 25:molecules25133054. [PMID: 32635342 PMCID: PMC7411858 DOI: 10.3390/molecules25133054] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Revised: 06/30/2020] [Accepted: 07/02/2020] [Indexed: 02/02/2023] Open
Abstract
Persicaria maculosa (Polygonaceae) (known as lady’s thumb) is an annual morphologically variable weed that is widely distributed in Chile. The purpose of this study was to investigate the antifeedant potential of methanolic (MeOH), ethanolic (EtOH), and dichloromethane (DCM) extracts from the aerial parts of this plant collected in the Valparaíso and Curicó provinces (Chile) and relate this activity to the antioxidant capacity and the presence of phenolic compounds in the extracts. A phenolic profile based on HPLC-ESI-MS/MS allowed the identification of 26 phenolic compounds, most of them glycosyl derivatives of isorhamnetin, quercetin, and kaempferol. In addition, the total phenolic content (TP), total flavonoids (TF), and antioxidant activity measured by 2,2-diphenyl-1-picrylhydrazyl (DPPH), superoxide anion scavenging (O2−), ferric-reducing antioxidant power (FRAP), and cupric-reducing antioxidant capacity (CUPRAC) of the extracts are reported. The antifeedant potentials of the plant extracts were tested against Epilachna paenulata, Pseudaletia adultera, Macrosiphum euphorbiae, and Diaphorina citri insects for the first time. The activity against the aphid M. euphorbiae was significant for the DCM extracts of plants from Valparaíso and Curicó (settling % = 23% ± 4% and 23% ± 5%, respectively). The antifeedant activities against the beetle E. paenulata and the lepidoptera P. adultera were significant for Valparaíso extracts, especially when tested against E. Paenulata (IFP = 1.0 ± 0.0). Finally, the MeOH and EtOH extracts from Valparaíso plants reduced the diet consumption of the psilid D. citri (p < 0.05). The results showed that P. maculosa is a good source of flavonoids with some antioxidant capacities and has potential interest as botanical eco-friendly alternative with deterrent activity.
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Affiliation(s)
- Luisa Quesada-Romero
- Laboratorio de Ecología Química, Instituto de Química, Pontificia Universidad Católica de Valparaíso, Avda. Universidad 330. Curauma, Valparaíso 2340000, Chile; (L.Q.-R.); (J.B.)
- Facultad de Ciencias para el cuidado de la Salud, Universidad San Sebastián, General Lagos 1163, Valdivia 5090000, Chile
| | | | - Jan Bergmann
- Laboratorio de Ecología Química, Instituto de Química, Pontificia Universidad Católica de Valparaíso, Avda. Universidad 330. Curauma, Valparaíso 2340000, Chile; (L.Q.-R.); (J.B.)
| | - María-Eugenia Amorós
- Laboratorio de Ecología Química, Facultad de Química, Universidad de la República, Gral. Flores 2124 CP 11800, Montevideo 11800, Uruguay; (M.-E.A.); (A.G.)
| | - Felipe Jiménez-Aspee
- Departamento de Ciencias Básicas Biomédicas, Facultad de Ciencias de la Salud, Universidad de Talca, Avenida Lircay S/N, Talca 3460000, Chile;
| | - Andrés González
- Laboratorio de Ecología Química, Facultad de Química, Universidad de la República, Gral. Flores 2124 CP 11800, Montevideo 11800, Uruguay; (M.-E.A.); (A.G.)
| | - Mario Simirgiotis
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Valdivia 5090000, Chile;
- Center for Interdisciplinary Studies on the Nervous System, Universidad Austral de Chile, Campus Isla Teja, Valdivia 5090000, Chile
- Correspondence: (M.S.); (C.R.); Tel.: +056-632244369 (M.S.)
| | - Carmen Rossini
- Laboratorio de Ecología Química, Facultad de Química, Universidad de la República, Gral. Flores 2124 CP 11800, Montevideo 11800, Uruguay; (M.-E.A.); (A.G.)
- Correspondence: (M.S.); (C.R.); Tel.: +056-632244369 (M.S.)
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Barrientos R, Fernández-Galleguillos C, Pastene E, Simirgiotis M, Romero-Parra J, Ahmed S, Echeverría J. Metabolomic Analysis, Fast Isolation of Phenolic Compounds, and Evaluation of Biological Activities of the Bark From Weinmannia trichosperma Cav. (Cunoniaceae). Front Pharmacol 2020; 11:780. [PMID: 32536867 PMCID: PMC7267059 DOI: 10.3389/fphar.2020.00780] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 05/11/2020] [Indexed: 01/14/2023] Open
Abstract
Weinmannia trichosperma Cav. (Cunoniaceae) (local name, tineo; Mapuche names, madén, mëdehue) is an endemic species of Chile and Argentina used in Mapuche traditional medicine in the treatment of chronic diarrhea, inflammation, and wound healing. This study focused on the isolation, analysis, and characterization of the biological activity of compounds and bark extracts from this plant for the first time. The infusion and tincture of the bark were characterized regarding antioxidant and important enzyme inhibitory activities, phenolics, and flavonoids content and UHPLC-ESI-OT-MS metabolite profiling. Twenty-five metabolites were detected in the medicinal infusion of W. trichosperma, three flavonols were isolated: isoastilbin, neoisoastilbin, and neoastilbin ((2R,3S)-, (2S,3R)-, and (2S,3S)-dihydroquercetin 3-O-alpha-l-rhamnoside) by countercurrent chromatography, and the isomers were quantified in the bark using a validated analytical HPLC methodology. The antioxidant properties were measured by ABTS, DPPH, FRAP, ORAC, and TEAC methods. The infusion displayed a strong DPPH and ABTS scavenging activity (IC50 = 20.58 and 3.070 µg ml−1, respectively) while a moderated effect was observed in the FRAP, ORAC, and ABTS assays. The infusion showed a content of phenolic and flavonoid compounds of 442.1 mg GAE g−1 and 15.54 mg QE g−1, respectively. Furthermore, the infusion showed a good and promissory inhibitory activity (33.80%, 33.12%, and 82.86% for AChE, BuChE, and 5-hLOX, respectively) and isoastilbin (51.70%, 50.10%, and 34.29–80.71% for AChE, BuChE, and 5-hLOX, respectively). The biomolecules identified in this study support the traditional uses of this bark and the potential industrial interest from this Valdivian plant species.
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Affiliation(s)
- Ruth Barrientos
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | | | - Edgar Pastene
- Laboratorio de Síntesis y Biotransformación de Productos Naturales, Departamento de Ciencias Básicas, Facultad de Ciencias, Universidad del Bío-Bío, Chillán, Chile
| | - Mario Simirgiotis
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Javier Romero-Parra
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Shakeel Ahmed
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Javier Echeverría
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
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12
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Rodriguez S, Pertino MW, Arcos C, Reichert L, Echeverria J, Simirgiotis M, Borquez J, Cornejo A, Areche C, Sepulveda B. Isolation, Gastroprotective Effects and Untargeted Metabolomics Analysis of Lycium Minutifolium J. Remy (Solanaceae). Foods 2020; 9:foods9050565. [PMID: 32375270 PMCID: PMC7278853 DOI: 10.3390/foods9050565] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 04/11/2020] [Accepted: 04/15/2020] [Indexed: 12/20/2022] Open
Abstract
Lycium minutifolium J. Remy (Solanaceae) is commonly used as an infusion in traditional medicine to treat stomach pain, meteorism, intestinal disorders, stomach ailments, and other severe problems including prostate cancer and stomach cancer. From the EtOAc extract of L. minutifolium bark five known metabolites were isolated using chromatographic techniques. The gastroprotective effects of the EtOAc fraction and edible infusion extract of the bark were assayed on the hydrochloric acid (HCl)/EtOH induced gastric ulcer model in mice to support the traditional use of the plant. The EtOAc extract and the edible infusion showed gastroprotective effect at dose of 100 mg/kg reducing lesions by 31% and 64%, respectively. The gastroprotective action mechanisms of the edible infusion at a single oral dose of 100 mg/kg were evaluated suggesting that prostaglandins, sulfhydryl groups, and nitric oxide are involved in the mode of gastroprotective action. The UHPLC analysis coupled to high-resolution mass spectrometry of the edible infusion showed the presence of twenty-three compounds. Our results can support the gastroprotective properties of the edible infusion extract, and at least can validate in part, the ethnopharmacological uses of the plant.
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Affiliation(s)
- Stephanie Rodriguez
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, 8320000 Santiago, Chile; (S.R.); (C.A.)
| | - Mariano Walter Pertino
- Laboratorio de Química de Productos Naturales, Instituto de Química de Recursos Naturales, Universidad de Talca, 3460000 Talca, Chile;
| | - Chantal Arcos
- Departamento de Ciencias Químicas, Universidad Andres Bello, Campus Viña del Mar, Quillota 980, Viña del Mar, 2531098 Valparaiso, Chile; (C.A.); (L.R.)
| | - Luana Reichert
- Departamento de Ciencias Químicas, Universidad Andres Bello, Campus Viña del Mar, Quillota 980, Viña del Mar, 2531098 Valparaiso, Chile; (C.A.); (L.R.)
| | - Javier Echeverria
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, 9170022 Santiago, Chile;
| | - Mario Simirgiotis
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, 5090000 Valdivia, Chile;
| | - Jorge Borquez
- Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Av Coloso S-N, 1240000 Antofagasta, Chile;
| | - Alberto Cornejo
- Escuela de Tecnología Médica, Facultad de Medicina, Universidad Andres Bello, Sazié 2315, 8370092 Santiago, Chile;
| | - Carlos Areche
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, 8320000 Santiago, Chile; (S.R.); (C.A.)
| | - Beatriz Sepulveda
- Departamento de Ciencias Químicas, Universidad Andres Bello, Campus Viña del Mar, Quillota 980, Viña del Mar, 2531098 Valparaiso, Chile; (C.A.); (L.R.)
- Correspondence: ; Tel.: +56-063-2244369
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13
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Areche C, Hernandez M, Cano T, Ticona J, Cortes C, Simirgiotis M, Caceres F, Borquez J, Echeverría J, Sepulveda B. Corryocactus brevistylus (K. Schum. ex Vaupel) Britton & Rose (Cactaceae): Antioxidant, Gastroprotective Effects, and Metabolomic Profiling by Ultrahigh-Pressure Liquid Chromatography and Electrospray High Resolution Orbitrap Tandem Mass Spectrometry. Front Pharmacol 2020; 11:417. [PMID: 32322203 PMCID: PMC7156589 DOI: 10.3389/fphar.2020.00417] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 03/18/2020] [Indexed: 12/23/2022] Open
Abstract
Corryocactus brevistylus (K. Schum. ex Vaupel) Britton & Rose (Cactaceae) is a shrubby or often arborescent cactus popularly known as "sancayo" and produce an edible fruit known as "Sanky" which is consumed in Arequipa-Perú. The purpose of this study was to report the gastroprotective activity and relate this activity to the antioxidant capacity and presence of phenolic compounds for the first time. A metabolomic profiling based on Ultrahigh-pressure liquid chromatography and electrospray high resolution mass spectrometry, and the antioxidant activities (DPPH, ABTS, and FRAP), ascorbic acid content, total phenolics and flavonoids contents, and the mode of gastroprotective action of the Sanky fruit including the involvement of prostaglandins, nitric oxide, and sulfhydryl compounds is reported. Thirty-eight compounds were detected in the ethanolic extract including 12 organic acids, nine hydroxycinnamic acids, three isoamericanol derivatives, six flavonoids, five fatty acids, and two sterols. The results of the biological tests showed that the ethanolic extract had antioxidant capacity and gastroprotective activity on the model of HCl/EtOH-induced gastric lesions in mice (at 10, 25, 50, and 100 mg/kg). The effect elicited by the extract at 50 mg/kg was reversed by indometacin and N-ethylmaleimide but not by NG-nitro-L-arginine methyl ester suggesting that sulfhydryl groups and prostaglandins are involved in the mode of gastroprotective action. In conclusion, our study proves that C. brevistylus pears have some gastroprotective and antioxidant capacities and consumption is recommended for the presence of several bioactive compounds.
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Affiliation(s)
- Carlos Areche
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Marco Hernandez
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Teresa Cano
- Departamento de Química, Facultad de Ciencias Naturales y Formales, Universidad Nacional de San Agustín, Arequipa, Perú
| | - Juana Ticona
- Departamento de Química, Facultad de Ciencias Naturales y Formales, Universidad Nacional de San Agustín, Arequipa, Perú
| | - Carmen Cortes
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Mario Simirgiotis
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Fátima Caceres
- Laboratorio de Botánica, Departamento de Biología, Facultad de Ciencias Biológicas, Universidad Nacional de San Agustín, Arequipa, Perú
| | - Jorge Borquez
- Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Antofagasta, Chile
| | - Javier Echeverría
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Beatriz Sepulveda
- Departamento de Ciencias Químicas, Universidad Andrés Bello, Viña del Mar, Chile
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14
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Persia FA, Troncoso ME, Rinaldini E, Simirgiotis M, Tapia A, Bórquez J, Mackern-Oberti JP, Hapon MB, Gamarra-Luques C. UHPLC-Q/Orbitrap/MS/MS fingerprinting and antitumoral effects of Prosopis strombulifera (LAM.) BENTH. queous extract on allograft colorectal and melanoma cancer models. Heliyon 2020; 6:e03353. [PMID: 32055742 PMCID: PMC7005552 DOI: 10.1016/j.heliyon.2020.e03353] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 03/22/2019] [Accepted: 01/30/2020] [Indexed: 12/13/2022] Open
Abstract
The aqueous extract of the Argentinean native plant, Prosopis strombulifera (PsAE), presents cytotoxicity against human cancer cell lines by inducing cytostasis, necrosis and apoptosis; with diminution of clonogenic survival; without genotoxic effects nor oral animal toxicity. Until now, the chemical extract composition and its in vivo antitumoral properties remain unknown; these studies are the aim of the current work. The PsAE was characterized by chemical fingerprinting and the metabolome was identified by tandem UHPLC-PDA-HESI-Q-orbitrap® mass spectrometry. Colorectal tumors were induced by DMH administration and melanomas resulted from B16-F0 S.C. cells injection; then, animals were treated orally with PsEA. To correlate in vivo results with in vitro cytotoxicity, B16-F0 cell were cultured to determine: cell proliferation and viability by dye exclusion assays, MTT and CFSE dilution; cell cycle distribution by flow cytometry; and immunoblotting of p21cip1, PCNA, cleaved caspase 3, cleaved PARP and TUBA1A. Based on UHPLC-OT-MS and PDA analysis, twenty-six compounds were identified, including: 5 simple organic acids, 4 phenolic acids, 4 procyanidins, 11 flavonoids, and 2 oxylipins. On C57BL6 mice, PsAE significantly increases the median survival on colorectal cancer and reduces the final volume and weight of melanomas. Over cultured cells, the treatment induce over-expression of p21, cytostasis by G2/M cell cycle arrest and apoptosis; while, on in vivo melanomas, treatment up-regulates p21 and slightly decreases PCNA. In conclusion, PsAE is composed by phenolic compounds which demonstrate cytotoxic and antitumoral properties when is orally administrated. Presented results support future research of PsAE as a potential phytomedicine for cancer treatment.
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Affiliation(s)
- Fabio Andrés Persia
- Instituto de Medicina y Biología Experimental de Cuyo (IMBECU), CONICET - Universidad Nacional de Cuyo. Mendoza, Av. Ruiz Leal s/n, Parque General San Martín, CP5500, Mendoza, Argentina.,Facultad de Ciencias Médicas, Universidad de Mendoza, Boulogne Sur Mer 683, CP 5500, Mendoza, Argentina
| | - Mariana Elizabeth Troncoso
- Instituto de Medicina y Biología Experimental de Cuyo (IMBECU), CONICET - Universidad Nacional de Cuyo. Mendoza, Av. Ruiz Leal s/n, Parque General San Martín, CP5500, Mendoza, Argentina.,Cátedra de Química Biológica, Facultad de Ciencias Exactas y Naturales (FCEN), Universidad Nacional de Cuyo, Padre Contreras 1300, CP 5500, Mendoza, Argentina
| | - Estefanía Rinaldini
- Instituto de Medicina y Biología Experimental de Cuyo (IMBECU), CONICET - Universidad Nacional de Cuyo. Mendoza, Av. Ruiz Leal s/n, Parque General San Martín, CP5500, Mendoza, Argentina
| | - Mario Simirgiotis
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Campus Isla Teja, 5090000, Valdivia, Chile.,Center for Interdisciplinary Studies on the Nervous System (CISNe), Universidad Austral de Chile, Valdivia, Chile
| | - Alejandro Tapia
- Instituto de Biotecnología-Instituto de Ciencias Básicas, Universidad Nacional de San Juan, Av. Libertador General San Martín 1109 (O), CP 5400, San Juan, Argentina
| | - Jorge Bórquez
- Laboratorio de Productos Naturales Depto. de Química, Facultad de Ciencias, Universidad de Antofagasta. Av. Coloso S-N, Antofagasta 1240000, Chile
| | - Juan Pablo Mackern-Oberti
- Instituto de Medicina y Biología Experimental de Cuyo (IMBECU), CONICET - Universidad Nacional de Cuyo. Mendoza, Av. Ruiz Leal s/n, Parque General San Martín, CP5500, Mendoza, Argentina.,Instituto de Fisiología, Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, Centro Universitario, CP5500, Mendoza, Argentina
| | - María Belén Hapon
- Instituto de Medicina y Biología Experimental de Cuyo (IMBECU), CONICET - Universidad Nacional de Cuyo. Mendoza, Av. Ruiz Leal s/n, Parque General San Martín, CP5500, Mendoza, Argentina.,Cátedra de Química Biológica, Facultad de Ciencias Exactas y Naturales (FCEN), Universidad Nacional de Cuyo, Padre Contreras 1300, CP 5500, Mendoza, Argentina
| | - Carlos Gamarra-Luques
- Instituto de Medicina y Biología Experimental de Cuyo (IMBECU), CONICET - Universidad Nacional de Cuyo. Mendoza, Av. Ruiz Leal s/n, Parque General San Martín, CP5500, Mendoza, Argentina.,Instituto de Fisiología, Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, Centro Universitario, CP5500, Mendoza, Argentina
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15
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Areche C, Fernandez-Burgos R, Cano T, Simirgiotis M, García-Beltrán O, Borquez J, Sepulveda B. Mulinum crassifolium Phil; Two New Mulinanes, Gastroprotective Activity and Metabolomic Analysis by UHPLC-Orbitrap Mass Spectrometry. Molecules 2019; 24:molecules24091673. [PMID: 31035428 PMCID: PMC6539732 DOI: 10.3390/molecules24091673] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 04/22/2019] [Accepted: 04/26/2019] [Indexed: 01/18/2023] Open
Abstract
Mulinum crassifolium Phil. (Apiaceae) is an endemic shrub from Chile commonly used as infusion in traditional medicine to treat diabetes, bronchial and intestinal disorders and stomach ailments, including ulcers. From the EtOAc extract of this plant, the new mulinane-type diterpenoids 3 and 5 were isolated along with three known diterpenoids. The gastroprotective effect of the infusion of the plant was assayed to support the traditional use and a fast HPLC analysis using high resolution techniques was performed to identify the bioactive constituents. The EtOAc extract and the edible infusion showed gastroprotective effect at 100 mg/kg in the HCl/EtOH induced gastric ulcer model in mice, reducing lesions by 33% and 74%, respectively. Finally, a metabolomic profiling based on UHPLC-ESI-MS/HRMS of the edible infusion was performed and thirty-five compounds were tentatively identified including quercetin, caffeic acid, apigenine glucoside, p-coumaric acid, chlorogenic acids, and caffeoylquinic acids, which have been associated previously with gastroprotective and antiulcer properties. This scientific evidence can support the contribution of polyphenols in the gastroprotective activity of the edible infusion of this plant, and can validate at least in part, its ethnopharmacological use.
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Affiliation(s)
- Carlos Areche
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile.
| | - Ronald Fernandez-Burgos
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile.
- Departamento de Química, Facultad de Ciencias Naturales y Formales, Universidad Nacional de San Agustín, Arequipa 68513, Perú.
| | - Teresa Cano
- Departamento de Química, Facultad de Ciencias Naturales y Formales, Universidad Nacional de San Agustín, Arequipa 68513, Perú.
| | - Mario Simirgiotis
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Valdivia 5090000, Chile.
| | - Olimpo García-Beltrán
- Facultad de Ciencias Naturales y Matemáticas, Universidad de Ibagué, Carrera 22 calle 67, Ibagué 730002, Colombia.
| | - Jorge Borquez
- Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Av Coloso S-N, Antofagasta 1240000, Chile.
| | - Beatriz Sepulveda
- Departamento de Ciencias Químicas, Universidad Andrés Bello, Campus Viña del Mar, Quillota 980, Viña del Mar, Chile.
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16
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Cisterna J, Bórquez J, Muñoz R, Simirgiotis M, Cárdenas A, Brito I. Crystal structure of 5,4′-dihydroxy-7,3′-dimethoxyflavanone, C 17H 16O 6. Z KRIST-NEW CRYST ST 2019. [DOI: 10.1515/ncrs-2018-0295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C17H16O6, orthorhombic, P212121 (no. 19), a = 5.2601(3) Å, b = 12.7161(6) Å, c = 22.0116(11) Å, V = 1472.31(13) Å3, Z = 4, R
gt(F) = 0.0430, wR
ref(F
2) = 0.1089, T = 296(2) K.
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Affiliation(s)
- Jonathan Cisterna
- Departamento de Química, Facultad de Ciencias Básicas , Universidad de Antofagasta , Casilla 170 , Antofagasta , Chile
| | - Jorge Bórquez
- Departamento de Química, Facultad de Ciencias Básicas , Universidad de Antofagasta , Casilla 170 , Antofagasta , Chile
| | - Rubén Muñoz
- Departamento de Química, Facultad de Ciencias Básicas , Universidad de Antofagasta , Casilla 170 , Antofagasta , Chile
| | - Mario Simirgiotis
- Instituto de Farmacia , Facultad de Ciencias, Universidad Austral de Chile , Casilla 567 , Valdivia 5090000 , Chile
| | - Alejandro Cárdenas
- Departamento de Física, Facultad de Ciencias Básicas , Universidad de Antofagasta , Casilla 170 , Antofagasta , Chile
| | - Iván Brito
- Departamento de Química, Facultad de Ciencias Básicas , Universidad de Antofagasta , Casilla 170 , Antofagasta , Chile
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17
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Nwokocha CR, Warren I, Palacios J, Simirgiotis M, Nwokocha M, Harrison S, Thompson R, Paredes A, Bórquez J, Lavado A, Cifuentes F. Modulatory Effect of Guinep ( Melicoccus bijugatus Jacq) Fruit Pulp Extract on Isoproterenol-Induced Myocardial Damage in Rats. Identification of Major Metabolites Using High Resolution UHPLC Q-Orbitrap Mass Spectrometry. Molecules 2019; 24:molecules24020235. [PMID: 30634603 PMCID: PMC6359499 DOI: 10.3390/molecules24020235] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Revised: 01/08/2019] [Accepted: 01/08/2019] [Indexed: 12/15/2022] Open
Abstract
Guinep is traditionally used in the management of cardiovascular ailments. This study aims to evaluate its medicinal constituents and effects in the management of myocardial injury in an experimental isoproterenol (ISO) rat model. Sprague-Dawley rats were randomly assigned to four groups: Group 1 was the control group; Group 2 received M. bijugatus extract (100 mg/Kg; MB) for six weeks; Group 3 was given ISO (85 mg/Kg) i.p. twice during a 24-hour period; and Group 4 was given ISO (85 mg/Kg) i.p. and MB extract (100 mg/Kg) for six weeks. The MB was administered orally by gavage, daily. The blood pressure of conscious animals was measured, while ECG was performed under anesthesia. Blood and serum were collected for biochemical and hematological analysis. The ISO group treated with MB showed a significant decrease (p < 0.001) in (SBP), diastolic (DBP), mean arterial (MAP) and heart rate (HR) compared to the ISO only group. Conversely, MB treated rats that were not induced with ISO displayed a significant decreases (p < 0.001) in SBP, DBP, MAP, and HR. ISO significantly elevated the ST segment (p < 0.001) and shortened the QTc interval (p < 0.05), which were recovered after treatment with 100 mg/Kg of MB. In addition, the results showed a significant decrease (p < 0.001) in the heart to body weight ratio of the ISO group treated with MB compared to the ISO only group. Furthermore, the extract normalized the hematological values depressed by the ISO while significantly elevating the platelet count. UHPLC high-resolution orbitrap mass spectrometry analysis results revealed the presence of several antioxidants like vitamin C and related compounds, phenolic acids, flavonoid, fatty acids (oxylipins), and terpene derivatives. The results of this study indicated that Melicoccus bijugatus did display some cardio-protective effects in relation to myocardial injury.
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Affiliation(s)
- Chukwuemeka R Nwokocha
- Department of Basic Medical Sciences Physiology Section, Faculty of Medical Sciences, The University of the West Indies, Mona, Kingston 7, KGN, Jamaica.
| | - Isheba Warren
- Department of Basic Medical Sciences Physiology Section, Faculty of Medical Sciences, The University of the West Indies, Mona, Kingston 7, KGN, Jamaica.
| | - Javier Palacios
- Facultad Ciencias de la Salud, Instituto de EtnoFarmacología (IDE), Universidad Arturo Prat, Iquique 1110939, Chile.
| | - Mario Simirgiotis
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Valdivia 5110566, Chile.
| | - Magdalene Nwokocha
- Department of Pathology, Faculty of Medical Sciences, University of the West Indies, Mona Campus, Kingston 7, KGN, Jamaica.
| | - Sharon Harrison
- Department of Pathology, Faculty of Medical Sciences, University of the West Indies, Mona Campus, Kingston 7, KGN, Jamaica.
| | - Rory Thompson
- Department of Pathology, Faculty of Medical Sciences, University of the West Indies, Mona Campus, Kingston 7, KGN, Jamaica.
| | - Adrian Paredes
- Laboratorio de Química Biológica, Instituto Antofagasta, Universidad de Antofagasta, Antofagasta 1270300, Chile.
| | - Jorge Bórquez
- Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Antofagasta 1270300, Chile.
| | - Astrid Lavado
- Laboratorio de Fisiología Experimental, Instituto Antofagasta, Universidad de Antofagasta, Antofagasta 1270300, Chile.
| | - Fredi Cifuentes
- Laboratorio de Fisiología Experimental, Instituto Antofagasta, Universidad de Antofagasta, Antofagasta 1270300, Chile.
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18
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Mocan A, Moldovan C, Zengin G, Bender O, Locatelli M, Simirgiotis M, Atalay A, Vodnar DC, Rohn S, Crișan G. UHPLC-QTOF-MS analysis of bioactive constituents from two Romanian Goji (Lycium barbarum L.) berries cultivars and their antioxidant, enzyme inhibitory, and real-time cytotoxicological evaluation. Food Chem Toxicol 2018; 115:414-424. [DOI: 10.1016/j.fct.2018.01.054] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Revised: 01/22/2018] [Accepted: 01/29/2018] [Indexed: 01/04/2023]
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19
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Brito I, Bórquez J, Simirgiotis M, Cárdenas A. Crystal structure of 5-hydroxy-2-(4-hydroxy-3-methoxyphenyl)-3,7,8-trimethoxy-4 H-chromen-4-one, C 19H 18O 8. Z KRIST-NEW CRYST ST 2018. [DOI: 10.1515/ncrs-2017-0141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C19H18O8, monoclinic, P21/c (no. 14), a = 12.689(2) Å, b = 20.321(4) Å, c = 7.0820(13) Å, β = 105.368(13)°, V = 1760.8(6) Å3, Z = 4, R
gt = 0.0662, wR
ref(F
2) = 0.1788, T = 295 K.
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Affiliation(s)
- Iván Brito
- Departamento de Química, Facultad de Ciencias Básicas , Universidad de Antofagasta , Casilla 170, Antofagasta , Chile
| | - Jorge Bórquez
- Departamento de Química, Facultad de Ciencias Básicas , Universidad de Antofagasta , Casilla 170, Antofagasta , Chile
| | - Mario Simirgiotis
- Instituto de Farmacia, Facultad de Ciencias , Universidad Austral de Chile , casilla 567, Valdivia 5090000 , Chile
| | - Alejandro Cárdenas
- Departamento de Física, Facultad de Ciencias Básicas , Universidad de Antofagasta , Casilla 170, Antofagasta , Chile
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Atanasov AG, Sabharanjak SM, Zengin G, Mollica A, Szostak A, Simirgiotis M, Huminiecki Ł, Horbanczuk OK, Nabavi SM, Mocan A. Pecan nuts: A review of reported bioactivities and health effects. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2017.10.019] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Salgado F, Albornoz L, Cortéz C, Stashenko E, Urrea-Vallejo K, Nagles E, Galicia-Virviescas C, Cornejo A, Ardiles A, Simirgiotis M, García-Beltrán O, Areche C. Secondary Metabolite Profiling of Species of the Genus Usnea by UHPLC-ESI-OT-MS-MS. Molecules 2017; 23:molecules23010054. [PMID: 29280946 PMCID: PMC6017147 DOI: 10.3390/molecules23010054] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 12/20/2017] [Accepted: 12/24/2017] [Indexed: 12/02/2022] Open
Abstract
Lichens are symbiotic associations of fungi with microalgae and/or cyanobacteria, which are considered among the slowest growing organisms, with strong tolerance to adverse environmental conditions. There are about 400 genera and 1600 species of lichens and those belonging to the Usnea genus comprise about 360 of these species. Usnea lichens have been used since ancient times as dyes, cosmetics, preservatives, deodorants and folk medicines. The phytochemistry of the Usnea genus includes more than 60 compounds which belong to the following classes: depsides, depsidones, depsones, lactones, quinones, phenolics, polysaccharides, fatty acids and dibenzofurans. Due to scarce knowledge of metabolomic profiles of Usnea species (U. barbata, U. antarctica, U. rubicunda and U. subfloridana), a study based on UHPLC-ESI-OT-MS-MS was performed for a comprehensive characterization of their secondary metabolites. From the methanolic extracts of these species a total of 73 metabolites were identified for the first time using this hyphenated technique, including 34 compounds in U. barbata, 21 in U. antarctica, 38 in U. rubicunda and 37 in U. subfloridana. Besides, a total of 13 metabolites were not identified and reported so far, and could be new according to our data analysis. This study showed that this hyphenated technique is rapid, effective and accurate for phytochemical identification of lichen metabolites and the data collected could be useful for chemotaxonomic studies.
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Affiliation(s)
- Francisco Salgado
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, Nuñoa, Santiago 7800024, Chile.
| | - Laura Albornoz
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, Nuñoa, Santiago 7800024, Chile.
| | - Carmen Cortéz
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, Nuñoa, Santiago 7800024, Chile.
| | - Elena Stashenko
- Research Center of Excellence CENIVAM, CIBIMOL, Universidad Industrial de Santander, Building 45, UIS, Carrera 27, Calle 9, Bucaramanga 680002, Colombia.
| | - Kelly Urrea-Vallejo
- Facultad de Ciencias Naturales y Matemáticas, Universidad de Ibagué, Carrera 22 Calle 67, Ibagué 730001, Colombia.
| | - Edgar Nagles
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, Nuñoa, Santiago 7800024, Chile.
| | - Cesar Galicia-Virviescas
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, Nuñoa, Santiago 7800024, Chile.
| | - Alberto Cornejo
- Escuela de Tecnología Médica, Facultad de Medicina, Universidad Andrés Bello, Sazié 2315, Santiago 8370092, Chile.
| | - Alejandro Ardiles
- Facultad de Ciencias de la Salud, Universidad Arturo Prat, Casilla 121, Iquique 1100000, Chile.
| | - Mario Simirgiotis
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Campus Isla Teja, Valdivia 5090000, Chile.
- Center for Interdisciplinary Studies on the Nervous System, Universidad Austral de Chile, Campus Isla Teja, Valdivia 5090000, Chile.
| | - Olimpo García-Beltrán
- Facultad de Ciencias Naturales y Matemáticas, Universidad de Ibagué, Carrera 22 Calle 67, Ibagué 730001, Colombia.
| | - Carlos Areche
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, Nuñoa, Santiago 7800024, Chile.
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22
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Mocan A, Zengin G, Simirgiotis M, Schafberg M, Mollica A, Vodnar DC, Crişan G, Rohn S. Functional constituents of wild and cultivated Goji (L. barbarum L.) leaves: phytochemical characterization, biological profile, and computational studies. J Enzyme Inhib Med Chem 2017; 32:153-168. [PMID: 28095717 PMCID: PMC6009880 DOI: 10.1080/14756366.2016.1243535] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 09/26/2016] [Accepted: 09/28/2016] [Indexed: 02/03/2023] Open
Abstract
Goji (Lycium barbarum L.) leaves are emphasized as a functional tea or as dietary supplements. The phenolic compound profile, antioxidant, enzyme inhibitory, antimicrobial, and antimutagenic activities of leaf extracts from two selected cultivars in comparison with wild-growing plants have been evaluated. HPLC-DAD/ESI-ToF-MS analysis revealed the presence of phenolic acids and flavonoids with chlorogenic acid and rutin being the dominant compounds in the cultivated plants, whereas rutin and kaempeferol-3-O-rutinoside for wild growing ones. In particular, cv. Erma contained the highest amount of chlorogenic acid and showed a strong tyrosinase-inhibitory effect. Staphylococcus aureus, Listeria monocytogenes, and Penicillium funiculosum were the most sensitive strains when exposed to extracts from cultivated plants. Antimutagenic activity was evaluated by Ames' test. The tested extracts provided high protection against mutagenicity induced by 2-anthramine (2-AA) to Salmonella typhimurium strains TA 98 and TA 100 (max. inhibition (%) 88% and 74.2%, respectively). Overall, Goji leaves are a rich source of bioactive compounds with functional properties that need further risk/benefit evaluation when used in foods or health-promoting formulations.
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Affiliation(s)
- Andrei Mocan
- Institute of Food Chemistry, Hamburg School of Food Science, University of Hamburg, Hamburg, Germany
- Department of Pharmaceutical Botany, Faculty of Pharmacy, University of Medicine and Pharmacy "Iuliu Haţieganu", Cluj-Napoca, Romania
| | - Gökhan Zengin
- Department of Biology, Science Faculty, Selcuk University, Konya, Turkey
| | - Mario Simirgiotis
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Michaela Schafberg
- Institute of Food Chemistry, Hamburg School of Food Science, University of Hamburg, Hamburg, Germany
| | - Adriano Mollica
- Department of Pharmacy, University "G. d’Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Dan C. Vodnar
- Department of Food Science, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania
| | - Gianina Crişan
- Department of Pharmaceutical Botany, Faculty of Pharmacy, University of Medicine and Pharmacy "Iuliu Haţieganu", Cluj-Napoca, Romania
| | - Sascha Rohn
- Institute of Food Chemistry, Hamburg School of Food Science, University of Hamburg, Hamburg, Germany
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23
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Brito I, Simirgiotis M, Muñoz R, Benites J, Pasten L, Bórquez J, Cárdenas A. Crystal structure of 11-( p-coumaroyloxy)-tremetone, C 22H 20O 5. Z KRIST-NEW CRYST ST 2017. [DOI: 10.1515/ncrs-2016-0105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C22H20O5, orthorhombic, P212121 (no. 19), a = 6.2039(3) Å, b = 13.1634(8) Å, c = 22.8258(12) Å, V = 1864.06(17) Å3, Z = 4, R
gt(F) = 0.053, wR
ref(F
2) = 0.117, T = 297(2) K.
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Affiliation(s)
- Iván Brito
- Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Casilla 170, Antofagasta, Chile
| | - Mario Simirgiotis
- Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Casilla 170, Antofagasta, Chile
| | - Rubén Muñoz
- Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Casilla 170, Antofagasta, Chile
| | - Julio Benites
- Facultad de Ciencia de la Salud, Universidad Arturo Prat, Casilla 121, Iquique- Chile
| | - Leyla Pasten
- Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Casilla 170, Antofagasta, Chile
| | - Jorge Bórquez
- Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Casilla 170, Antofagasta, Chile
| | - Alejandro Cárdenas
- Departamento de Física, Facultad de Ciencias Básicas, Universidad de Antofagasta, Casilla 170, Antofagasta, Chile
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Cornejo A, Salgado F, Caballero J, Vargas R, Simirgiotis M, Areche C. Secondary Metabolites in Ramalina terebrata Detected by UHPLC/ESI/MS/MS and Identification of Parietin as Tau Protein Inhibitor. Int J Mol Sci 2016; 17:ijms17081303. [PMID: 27548142 PMCID: PMC5000700 DOI: 10.3390/ijms17081303] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 07/29/2016] [Accepted: 08/01/2016] [Indexed: 11/16/2022] Open
Abstract
Liquid chromatography coupled with mass spectrometry is an outstanding methodology for fast analysis of phenolic compounds in biological samples. Twenty two compounds were quickly and accurately identified in the methanolic extract of the Antarctic lichen Ramalina terebrata for the first time using ultra high pressure liquid chromatography coupled with photodiode array detector and high resolution mass spectrometry (UHPLC-PDA-Q/Orbitrap/MS/MS). In addition, the extract and the four compounds isolated from this species were tested for the inhibitory activity of tau protein aggregation, which is a protein involved in Alzheimer's disease (AD). All compounds showed null activity with the exception of parietin, which it was able to inhibit aggregation process of tau in a concentration range between 3 µg/mL (10 µM) to 28 µg/mL (100 µM). In addition, we show how parietin interact with tau (306)VQIVYK(311) hexapeptide inside of the microtubule binding domain (4R) with the help of molecular docking experiments. Finally, the constituents present in the methanolic extract could possibly contribute to the established anti-aggregation activity for this extract and this in-depth analysis of the chemical composition of R. terebrata could guide further research into its medicinal properties and potential uses.
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Affiliation(s)
- Alberto Cornejo
- Facultad de Medicina, Escuela de Tecnología Médica, Universidad Andrés Bello, Sazié 2315, Primer Piso, Santiago 8370092, Chile.
| | - Francisco Salgado
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Ñuñoa, Santiago 8320000, Chile.
| | - Julio Caballero
- Centro de Bioinformática y Simulación Molecular, Facultad de Ingeniería, Universidad de Talca, 2 Norte 685, Casilla 721, Talca 3460000, Chile.
| | - Reinaldo Vargas
- Departamento de Biología, Universidad Metropolitana de Ciencias de la Educación, Avda. Jose Pedro Alessandri 774, Ñuñoa, Santiago 8320000, Chile.
| | - Mario Simirgiotis
- Laboratorio de Productos Naturales, Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Casilla 567, Valdivia 5090000, Chile.
| | - Carlos Areche
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Ñuñoa, Santiago 8320000, Chile.
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25
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Brito I, Bórquez J, Simirgiotis M, Cárdenas A, Molina-Salinas GM, Jerz G, Peña-Rodriguez LM, Winterhalter P. Crystal structure of methyl 8-hydroxy-3-isopropyl-5a,8-dimethyl-2,3,4,5,5a,6,7,8,10a,10b-decahydrocyclohepta[e]indene-3a(1 H)-carboxylate, C 21H 34O 3. Z KRIST-NEW CRYST ST 2016. [DOI: 10.1515/ncrs-2015-0197] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C21H34O3, orthorhombic, P212121 (no. 19), a = 7.5420(7) Å, b = 11.6929(11) Å, c = 22.657(2) Å, V = 1998.1(3) Å3, Z = 4, R
gt
(F) = 0.0383, wR
ref
(F
2
) = 0.113, T = 293(2) K.
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Affiliation(s)
- Iván Brito
- Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Casilla 170, Antofagasta, Chile
| | - Jorge Bórquez
- Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Casilla 170, Antofagasta, Chile
| | - Mario Simirgiotis
- Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Casilla 170, Antofagasta, Chile
| | - Alejandro Cárdenas
- Departamento de Física, Facultad de Ciencias Básicas, Universidad de Antofagasta, Casilla 170, Antofagasta, Chile
| | - Gloria M. Molina-Salinas
- Unidad de Investigacion Médica Yucatán, Unidad Médica de Alta Especialidad, “Lic. Ignacio García Téllez”, IMSS, Mérida, Yucatán 97150, México
| | - Gerold Jerz
- Institut für Lebensmittelchemie, Technische Universität Braunschweig, Schleitnitzstrasse 30106 Braunschweig, Germany
| | - Luis Manuel Peña-Rodriguez
- Grupo de Química Orgánica, Unidad de Biotecnología, Centro de, Investigación Científica de Yucatán, Calle 43 No 130, Colonia, Chuburná , Mérida, Yucatán 97200, México
| | - Peter Winterhalter
- Institut für Lebensmittelchemie, Technische Universität Braunschweig, Schleitnitzstrasse 30106 Braunschweig, Germany
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Sepúlveda B, Quispe C, Simirgiotis M, García-Beltrán O, Areche C. Gastroprotective effects of new diterpenoid derivatives from Azorella cuatrecasasii Mathias & Constance obtained using a β-cyclodextrin complex with microbial and chemical transformations. Bioorg Med Chem Lett 2016; 26:3220-3222. [PMID: 27262597 DOI: 10.1016/j.bmcl.2016.05.081] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 05/25/2016] [Accepted: 05/27/2016] [Indexed: 11/29/2022]
Abstract
Mulinane diterpenoids isolated from Azorella species have displayed gastroprotective effects in animal models. In this study we have transformed the main constituent, mulin-11,13-dien-20 oic acid from this plant using the filamentous fungus Mucor plumbeus and a β-cyclodextrin inclusion complex and we have obtained two main products with good yields (33% and 15% for compound 4 and 5, respectively) for further preparation of semisynthetic derivatives to evaluate their gastroprotective effects. In addition, one of the compounds isolated from Azorella cuatrecasasii was new (9-epi-13α-hydroxymulinene 1). Six new derivatives 4a-4c and 5a-5c were then prepared by simple chemical transformations. The structures of all compounds were elucidated by spectroscopic means based on 1D and 2D-NMR techniques. Some 8 diterpenes were evaluated for their gastroprotective effects in the ethanol/HCl-induced ulcer model in mice at 20mg/kg. The highest gastroprotective activity was shown by 7α,16-dihydroxymulin-11,13-dien-20-oic acid 5, which was higher than the reference drug lansoprazole, while 16-hydroxymulin-11,13-dien-20-oic acid 4 was as active as lansoprazole.
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Affiliation(s)
- Beatriz Sepúlveda
- Departmento de Química, Universidad Andrés Bello, Viña del Mar, Chile
| | - Cristina Quispe
- Facultad de Ciencias de la Salud, Universidad Arturo Prat, Iquique, Chile
| | - Mario Simirgiotis
- Laboratorio de Productos Naturales, Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Antofagasta, Chile
| | - Olimpo García-Beltrán
- Facultad de Ciencias Naturales y Matemáticas, Universidad de Ibagué, Carrera 22 Calle 67, Ibagué 730001, Colombia.
| | - Carlos Areche
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Santiago, Chile.
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Parra T, Benites J, Ruiz LM, Sepulveda B, Simirgiotis M, Areche C. Gastroprotective activity of ent-beyerene derivatives in mice: Effects on gastric secretion, endogenous prostaglandins and non-protein sulfhydryls. Bioorg Med Chem Lett 2015; 25:2813-7. [DOI: 10.1016/j.bmcl.2015.04.095] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 04/23/2015] [Accepted: 04/30/2015] [Indexed: 01/08/2023]
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Areche C, Sepulveda B, San Martin A, Garcia-Beltrán O, Simirgiotis M, Cañete A. An unusual mulinane diterpenoid from the Chilean plant Azorella trifurcata (Gaertn) Pers. Org Biomol Chem 2015; 12:6406-13. [PMID: 25008488 DOI: 10.1039/c4ob00966e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Four new mulinane-type diterpenoids besides the known compounds mulin-11,13-dien-20-oic acid, 13α-hydroxyazorellane, 13β-hydroxyazorellane, mulinolic acid, azorellanol, and mulin-11,13-dien-18-acetoxy-16,20-dioic acid were isolated from the Chilean plant Azorella trifurcata. One of the new metabolites isolated, 7α-acetoxy-9-epi-13β-hydroxymulinane, possesses a new trans-syn-trans arrangement in a tricyclic ring system not previously encountered in nature. Among the mulinane diterpenoids isolated, mulin-11,13-dien-20-oic acid showed the gastroprotective effect on HCl-EtOH-induced gastric lesions in mice (ED50 = 55 mg kg(-1)). Regarding the mode of gastroprotective action for this active compound, its effect was reduced by pre-treatment of the mice with indomethacin and N-ethylmaleimide, suggesting that prostaglandins and sulfhydryl compounds are positively involved in the gastroprotective activity using this model.
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Affiliation(s)
- Carlos Areche
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile.
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Brito I, Bórquez J, Simirgiotis M, Neves-Vieira M, Jerz G, Winterhalter P, Bolte M, Cárdenas A. Crystal structure of 2-nor-1,2-secolycoserone, C24H32O4. Z KRIST-NEW CRYST ST 2014. [DOI: 10.1515/ncrs-2014-0212] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Iván Brito
- 1Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Casilla 170, Antofagasta, Chile
| | - Jorge Bórquez
- 1Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Casilla 170, Antofagasta, Chile
| | - Mario Simirgiotis
- 1Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Casilla 170, Antofagasta, Chile
| | - Mariana Neves-Vieira
- 2Institute of Food Chemistry, Technical University of Braunschweig, Schleinitz-Strasse 20, D-38106 Braunschweig, Germany
| | - Gerold Jerz
- 2Institute of Food Chemistry, Technical University of Braunschweig, Schleinitz-Strasse 20, D-38106 Braunschweig, Germany
| | - Peter Winterhalter
- 2Institute of Food Chemistry, Technical University of Braunschweig, Schleinitz-Strasse 20, D-38106 Braunschweig, Germany
| | - Michael Bolte
- 3Institut für Anorganische Chemie der Goethe-Universität Frankfurt, Max-von-Laue-Str. 7, D-60438 Frankfurt amMain, Germany
| | - Alejandro Cárdenas
- 4Departamento de Física, Facultad de Ciencias Básicas, Universidad de Antofagasta, Casilla 170, Antofagasta, Chile
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Brito I, Bórquez J, Simirgiotis M, Cárdenas A, López-Rodríguez M. 4',5-Dihy-droxy-7-meth-oxy-flavanone dihydrate. Acta Crystallogr Sect E Struct Rep Online 2011; 68:o32-3. [PMID: 22259537 PMCID: PMC3254395 DOI: 10.1107/s1600536811051221] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2011] [Accepted: 11/28/2011] [Indexed: 11/27/2022]
Abstract
The title compound, C16H14O5·2H2O [systematic name: 5-hydroxy-2-(4-hydroxyphenyl)-7-methoxychroman-4-one dihydrate], is a natural phytoalexin flavone isolated from the native chilean species Heliotropium taltalense and crystallizes with an organic molecule and two water molecules in the asymmetric unit. The 5-hydroxy group forms a strong intramolecular hydrogen bond with the carbonyl group, resulting in a six-membered ring. In the crystal, the components are linked by O—H⋯O hydrogen bonds, forming a three-dimensional network. The 4-hydroxyphenyl benzene ring is bonded equatorially to the pyrone ring, which adopts a slightly distorted sofa conformation. The title compound is the hydrated form of a previously reported structure [Shoja (1990 ▶). Acta Cryst. C46, 1969–1971]. There are only slight variations in the molecular geometry between the two compounds.
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31
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Santos L, Mirabal-Gallardo Y, Soriano M, Caballero J, Alzate-Morales J, Simirgiotis M. Synthesis of the Indolo[2,3-a]quinolizidine Ring through the Addition of 2-Siloxyfurans to Imines and Intrinsic Reaction Coordinate Calculations. SYNTHESIS-STUTTGART 2011. [DOI: 10.1055/s-0031-1289631] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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32
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Santos L, Mirabal-Gallardo Y, Shankaraiah N, Simirgiotis M. Short Total Synthesis of (-)-Lupinine and (-)-Epiquinamide by Double Mitsunobu Reaction. SYNTHESIS-STUTTGART 2010. [DOI: 10.1055/s-0030-1258356] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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