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Shin JY, Cho BO, Park JH, Kang ES, Kim YS, Jang SI. Diospyros lotus leaf extract and its main component myricitrin regulate pruritus through the inhibition of astrocyte activation. Exp Ther Med 2023; 26:323. [PMID: 37346401 PMCID: PMC10280317 DOI: 10.3892/etm.2023.12022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 03/29/2023] [Indexed: 06/23/2023] Open
Abstract
Diospyros lotus is a deciduous plant native to Asian countries, including Korea, Japan and China, and southeast Europe. In traditional medicine, Diospyros lotus is used as an anticancer, antidiabetic and antipyretic agent. The present study aimed to evaluate the effect of Diospyros lotus leaf extract (DLE) in ameliorating histamine-independent pruritus. Activation of signal transducer and activator of transcription 3 (STAT3) in astrocytes contributes to pruritus. In this study, the effects of DLE and its main component, myricetin (MC), on the activation of STAT3, expression of glial fibrillary acidic protein (GFAP), and production of lipocalin-2 (LCN2) in IL-6-treated astrocytes and chloroquine-injected mice were investigated through western blot, reverse transcription-quantitative PCR, and immunofluorescence staining. DLE and MC inhibited STAT3 activation, GFAP expression and LCN2 release via inositol 1,4,5-trisphosphate receptor type 1 blockade in astrocytes. DLE and MC ameliorated scratching behavior, expression of GFAP, mast cell infiltration and serum IL-6 levels in chloroquine-injected mice. These results suggested that DLE and MC can be used as oral therapeutic agents for the treatment and management of pruritus.
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Affiliation(s)
- Jae Young Shin
- Department of Food Science and Technology, Jeonbuk National University, Deokjin, Jeonju, Jeollabuk 54896, Republic of Korea
- Institute of Health and Science, Jeonju University, Wansan, Jeonju, Jeollabuk 55069, Republic of Korea
| | - Byoung Ok Cho
- Institute of Health and Science, Jeonju University, Wansan, Jeonju, Jeollabuk 55069, Republic of Korea
| | - Ji Hyeon Park
- Institute of Health and Science, Jeonju University, Wansan, Jeonju, Jeollabuk 55069, Republic of Korea
| | - Eun Seo Kang
- Institute of Health and Science, Jeonju University, Wansan, Jeonju, Jeollabuk 55069, Republic of Korea
| | - Young Soo Kim
- Department of Food Science and Technology, Jeonbuk National University, Deokjin, Jeonju, Jeollabuk 54896, Republic of Korea
| | - Seon Il Jang
- Institute of Health and Science, Jeonju University, Wansan, Jeonju, Jeollabuk 55069, Republic of Korea
- Department of Health Management, Jeonju University, Wansan, Jeonju, Jeollabuk 55069, Republic of Korea
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Bonilla-Carvajal K, Stashenko EE, Moreno-Castellanos N. Essential Oil of Carvone Chemotype Lippia alba (Verbenaceae) Regulates Lipid Mobilization and Adipogenesis in Adipocytes. Curr Issues Mol Biol 2022; 44:5741-5755. [PMID: 36421673 PMCID: PMC9688983 DOI: 10.3390/cimb44110389] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 10/28/2022] [Accepted: 10/29/2022] [Indexed: 08/19/2023] Open
Abstract
Obesity is characterized by an expansion of adipose tissue due to excessive accumulation of triglycerides in adipocytes, causing hypertrophy and hyperplasia, followed by hypoxia, alterations in adipocyte functionality, and chronic inflammation. However, current treatments require changes in lifestyle that are difficult to achieve and some treatments do not generate sustained weight loss over time. Therefore, we evaluated the effect of the essential oil (EO) of Lippia alba (Verbenaceae) carvone chemotype on viability, lipid mobilization, and adipogenesis of adipocytes in two normal and pathological cellular models in vitro. In 3T3-L1 adipocytes, a normal and a pathological model of obesity were induced, and then the cells were treated with L. alba carvone chemotype EO to evaluate cell viability, lipid mobilization, and adipogenesis. L. alba carvone chemotype EO does not decrease adipocyte viability at concentrations of 0.1, 1, and 5 µg/mL; furthermore, there was evidence of changes in lipid mobilization and adipogenesis, leading to a reversal of adipocyte hypertrophy. These results could be due to effects produced by EO on lipogenic and lipolytic pathways, as well as modifications in the expression of adipogenesis genes. L. alba carvone chemotype EO could be considered as a possible treatment for obesity, using the adipocyte as a therapeutic target.
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Affiliation(s)
- Katherin Bonilla-Carvajal
- Department of Basic Sciences, Health Faculty, Universidad Industrial de Santander, Bucaramanga 680002, Colombia
| | - Elena E. Stashenko
- Centro Nacional de Investigaciones para la Agroindustrialización de Especies Vegetales Aromáticas y Medicinales Tropicales/CENIVAM. Chemistry School, Science Faculty, Universidad Industrial de Santander, Bucaramanga 680002, Colombia
| | - Natalia Moreno-Castellanos
- Research Group-Centro de Investigación en Ciencia y Tecnología de Alimentos/CICTA, Department of Basic Sciences, Health Faculty, Universidad Industrial de Santander, Bucaramanga 680002, Colombia
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Li C, He Y, Yang Y, Gou Y, Li S, Wang R, Zeng S, Zhao X. Antioxidant and Inflammatory Effects of Nelumbo nucifera Gaertn. Leaves. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:8375961. [PMID: 34992717 PMCID: PMC8727128 DOI: 10.1155/2021/8375961] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 11/18/2021] [Indexed: 02/01/2023]
Abstract
This study is aimed at identifying the bioactive components in lotus leaf flavonoid extract (LLFE) and analyzing the antioxidant and anti-inflammatory activities of LLFE in vitro and in vivo. The flavonoids in LLFE were determined by UHPLC-MS/MS. The effect of LLFE on damaged 293T cells (H2O2, 0.3 mmol/L) was determined by MTT assay, and the activity of antioxidant enzymes was measured by kits. We studied the antioxidant and anti-inflammatory effects of LLFE on D-Gal/LPS (30 mg/kg·bw and 3 μg/kg·bw)-induced aging mice. We also evaluated the main organ index, pathological changes in the liver, lung, and kidney, liver function index, biochemical index, cytokine level, and mRNA expression level in serum and liver. The results showed that LLFE contains baicalein, kaempferol, kaempferid, quercetin, isorhamnetin, hyperoside, lespenephryl, and rutin. LLFE reduced the oxidative damage sustained by 293T cells, increased the levels of SOD, CAT, GSH, and GSH-Px, and decreased the level of MDA. The animal studies revealed that LLFE reduced oxidative damage and inflammation in injured mice, inhibited increases in AST, ALT, MDA, and NO, increased SOD, CAT, GSH, and GSH-Px levels, upregulated anti-inflammatory cytokines IL-10 and IL-12, and downregulated proinflammatory cytokines IL-6, IL-1β, TNF-α, and IFN-γ. Furthermore, the expression of antioxidant- and anti-inflammatory-related mRNA was consistent with the above results.
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Affiliation(s)
- Chong Li
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing Engineering Research Center of Functional Food, Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing 400067, China
- Department of Food and Nutrition, College of Medical and Life Science, Silla University, Busan 46958, Republic of Korea
| | - Yongpeng He
- Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital & Chongqing Cancer Institute & Chongqing Cancer Hospital, Chongqing 400030, China
| | - Yue Yang
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing Engineering Research Center of Functional Food, Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing 400067, China
- College of Biological and Chemical Engineering, Chongqing University of Education, Chongqing 400067, China
| | - Yuting Gou
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing Engineering Research Center of Functional Food, Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing 400067, China
- College of Biological and Chemical Engineering, Chongqing University of Education, Chongqing 400067, China
| | - Shuting Li
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing Engineering Research Center of Functional Food, Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing 400067, China
- College of Biological and Chemical Engineering, Chongqing University of Education, Chongqing 400067, China
| | - Rui Wang
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing Engineering Research Center of Functional Food, Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing 400067, China
- College of Biological and Chemical Engineering, Chongqing University of Education, Chongqing 400067, China
| | - Shi Zeng
- Department of Neurosurgery, People's Hospital of Chongqing Banan District, Chongqing 401320, China
| | - Xin Zhao
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing Engineering Research Center of Functional Food, Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing 400067, China
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