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Otero C, Miranda-Rojas S, Llancalahuén FM, Fuentes JA, Atala C, González-Silva G, Verdugo D, Sierra-Rosales P, Moreno A, Gordillo-Fuenzalida F. Biochemical characterization of Peumus boldus fruits: Insights of its antioxidant properties through a theoretical approach. Food Chem 2022; 370:131012. [PMID: 34500293 DOI: 10.1016/j.foodchem.2021.131012] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 07/29/2021] [Accepted: 08/29/2021] [Indexed: 11/17/2022]
Abstract
Peumus boldus is an endemic tree species from Chile whose leaves have been the focus of study for decades given that their infusions are reported to relieve rheumatic symptoms, headache, dyspepsia, urinary tract inflammation, and symptoms of other illnesses. These health properties have been studied mainly using leaves and bark, then it is relevant to know more about these properties in different parts of the plant. Considering the importance of P. boldus fruits in the diet of some rural populations, we analyzed their properties to explore its impact on the Chilean population health. Liquid chromatography and mass spectrometry analysis confirmed the presence of alkaloids such as boldine, although aporphine N-methyl-laurotetanine was the most abundant. In addition, flavonoids catechin, chrysin and quercetin were also found in the extract. Cytotoxicity and anti-inflammatory activities of the fruit extract were invitro tested by using a murine macrophage cell model, observing that a diluted fraction of the extract was not cytotoxic, but showed anti-inflammatory activity, which is likely attributed to antioxidants activities. By means of quantum chemical calculations, we calculated the redox potential of the respective alkaloids and flavonoids found in the extract. Results suggest a synergistic effect between alkaloids and flavonoids, where boldine and N-methyl-laurotetanine showed similar antioxidant properties. Finally, we present a description of the oxidation mechanisms for both groups of molecules which will sustain P. boldus fruit biological properties, in order to give this kind of fruits scientific value focusing on human health.
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Affiliation(s)
- Carolina Otero
- Escuela de Química y Farmacia, Facultad de Medicina, Universidad Andres Bello, República 252, Santiago, Chile
| | - Sebastián Miranda-Rojas
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Av. República 275, Santiago, Chile
| | - Felipe M Llancalahuén
- Laboratorio de Patofisiología Integrativa, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago 8370186, Chile; Núcleo Milenio de Enfermedades Asociadas a Canales Iónicos (MiNICAD), Universidad de Chile, Santiago 8380453, Chile
| | - Juan A Fuentes
- Laboratorio de Genética y Patogénesis Bacteriana, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Cristian Atala
- Instituto de Biología, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso, Campus Curauma, Avenida Universidad 330, Valparaíso, Chile
| | - Gloria González-Silva
- Laboratorio de Microbiología Aplicada, Centro de Biotecnología de los Recursos Naturales, Facultad de Ciencias Agrarias y Forestales, Universidad Católica del Maule, Avda. San Miguel 3605, Talca, Chile
| | - Diego Verdugo
- Laboratorio de Microbiología Aplicada, Centro de Biotecnología de los Recursos Naturales, Facultad de Ciencias Agrarias y Forestales, Universidad Católica del Maule, Avda. San Miguel 3605, Talca, Chile
| | - Paulina Sierra-Rosales
- Programa Institucional de Fomento a la Investigación, Desarrollo e Innovación, Universidad Tecnológica Metropolitana, Ignacio Valdivieso 2409, P.O Box 8940577, San Joaquín, Santiago, Chile
| | - Adrián Moreno
- Centro de Biotecnología Vegetal, Facultad de Ciencias Biológicas, Universidad Andres Bello, República 217, Santiago, Chile
| | - Felipe Gordillo-Fuenzalida
- Laboratorio de Microbiología Aplicada, Centro de Biotecnología de los Recursos Naturales, Facultad de Ciencias Agrarias y Forestales, Universidad Católica del Maule, Avda. San Miguel 3605, Talca, Chile.
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Gallego F, Larroulet C, Palomer L, Repetto A, Verdugo D. Socioeconomic inequalities in self-perceived oral health among adults in Chile. Int J Equity Health 2017; 16:23. [PMID: 28107814 PMCID: PMC5251305 DOI: 10.1186/s12939-017-0519-9] [Citation(s) in RCA: 8] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Accepted: 01/09/2017] [Indexed: 08/30/2023] Open
Abstract
BACKGROUND This paper studies the socioeconomic disparities in self-perceived oral health among Chilean adults and in the perceived physical, functional, psychological and social consequences of oral health. METHODS In February 2011, 1,413 residents of Metropolitan Area of Santiago, Chile, were interviewed using a standardized questionnaire and examined by dentists for dental status and oral health conditions. Only adults 18 to 60 years old affiliated with the public healthcare system were eligible to participate. We estimate socioeconomic gradients in self-perceived oral health and its distinct dimensions. We use the Heckman two-step procedure to control for selection bias given the non-random nature of the sample. In addition, we use a two-equation ordered response model given the discrete nature of the dependent variable. RESULTS There is a non-linear socioeconomic gradient in self-perceived oral health even after controlling for oral health status. The gradient is steep at the lower end of the income distribution and constant at mid-income levels. These socioeconomic disparities are also found for the psychological and social dimensions of self-perceived oral health, but not for the functional limitations and physical pain dimensions. CONCLUSIONS The findings are consistent with inequities in the access to oral health services due to insufficient provision in the public sector and costly options in the private sector.
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Affiliation(s)
- Francisco Gallego
- Department of Economics, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile
| | - Cristián Larroulet
- Department of Philosophy, Logic and Scientific Method, London School of Economics and Political Science, Houghton Street, London, WC2A 2AE, UK
| | - Leonor Palomer
- School of Dentistry, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile
| | - Andrea Repetto
- School of Government, Universidad Adolfo Ibáñez, and Núcleo Milenio Modelos de Crisis (NS 130017), Diagonal Las Torres 2640, 234A, Peñalolén, Santiago, Chile.
| | - Diego Verdugo
- Department of Economics, Brown University, 64 Waterman Street, Providence, RI, 02912, USA
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