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Sukkasem K, Itharat A, Thisayakorn K, Tangsuphoom N, Panthong S, Makchuchit S, Inprasit J, Prommee N, Khoenok W, Sriyam K, Pahusee D, Tasanarong A, Ooraikul B, Davies NM. Exploring in vitro and in vivo anti-inflammatory activities of the Thai traditional remedy Kheaw-Hom and its bioactive compound, ethyl p-methoxycinnamate, and ethnopharmacological analysis. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117131. [PMID: 37689327 DOI: 10.1016/j.jep.2023.117131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/23/2023] [Accepted: 09/04/2023] [Indexed: 09/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Kheaw-Hom (KH) remedy, a Thai traditional medicine (TTM) on the National List of Essential Medicines, has long been clinically used to treat fever and inflammation in children. However, no in vitro or in vivo anti-inflammatory or bioactive compound studies are published in the literature. AIMS OF THE STUDY To explore the in vitro and in vivo anti-inflammatory activities of KH remedy and its bioactive compound and analyze relationships between flavor and ethnopharmacological activities of plant components in KH remedy according to TTM theory. MATERIALS AND METHODS Ethyl p-methoxycinnamate (EPMC), a bioactive compound of KH remedy was analyzed using high performance liquid chromatography (HPLC). In vitro anti-inflammatory activities of ethanolic extract (KHE), aqueous extract (KHA), acid-hydrolysis of KHA (KHA-h), acid-hydrolysis of KH powder (KHP-h), and EPMC were investigated using lipopolysaccharide (LPS)-induced nitric oxide (NO), prostaglandin E2 (PGE2), and tumor necrosis factor-alpha (TNF-α) production in murine macrophage RAW 264.7 cells. In vivo anti-inflammatory activities of KH powder (KHP) and KHE were determined using carrageenan-induced paw edema and ethyl phenylpropiolate (EPP)-induced ear edema in rats and PGE2 production in tissue samples was examined. RESULTS KHP-h showed the highest EPMC content (21.33 ± 1.08 mg/g of extract) and inhibited PGE2, NO, and TNF-α production with IC50 values of 11.92 ± 0.21, 30.61 ± 3.12, and 56.71 ± 2.91 μg/mL, respectively, followed by KHE and KHA-h while KHA did not. EPMC, a bioactive compound of KH remedy showed high anti-inflammatory activities through three pathways. KHP oral administration (100 mg/kg) significantly minimized rat paw inflammation at 1, 2, and 3 h while KHE (100 mg/kg) noticeably reduced at 2 and 3 h. KHP (100, 200, and 400 mg/kg) and KHE (100 mg/kg) significantly inhibited PGE2 production. KHP (1% w/v) notably reduced rat ear edema at 30, 60, and 120 min whereas KHE at all concentrations decreased swelling at 120 min. KHP and KHE at all doses significantly inhibited PGE2 production. Cool flavor was the main KH remedy flavor. Spicy plant components and some fragrant components showed high anti-inflammatory activity. CONCLUSIONS Results from the in vivo study strongly paralleled the in vitro study. These findings support the rational use of KH remedy according to TTM theory for fever treatment and inflammation in children.
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Affiliation(s)
- Kanmanee Sukkasem
- Student of Doctor of Philosophy (Applied Thai Traditional Medicine), Department of Applied Thai Traditional Medicine, Faculty of Medicine, Thammasat University, Khlong Luang, Pathum Thani, 12120, Thailand.
| | - Arunporn Itharat
- Department of Applied Thai Traditional Medicine, Faculty of Medicine, Thammasat University, Khlong Luang, Pathum Thani, 12120, Thailand; Center of Excellence in Applied Thai Traditional Medicine Research (CEATMR), Thammasat University, Khlong Luang, Pathum Thani, 12120, Thailand.
| | - Krittiya Thisayakorn
- Expert Center of Innovative Herbal Products (InnoHerb), Thailand Institute of Scientific and Technological Research (TISTR), Technopolis, Khlong Luang, Pathum Thani, 12120, Thailand.
| | | | - Sumalee Panthong
- Department of Applied Thai Traditional Medicine, Faculty of Medicine, Thammasat University, Khlong Luang, Pathum Thani, 12120, Thailand; Center of Excellence in Applied Thai Traditional Medicine Research (CEATMR), Thammasat University, Khlong Luang, Pathum Thani, 12120, Thailand.
| | - Sunita Makchuchit
- Department of Applied Thai Traditional Medicine, Faculty of Medicine, Thammasat University, Khlong Luang, Pathum Thani, 12120, Thailand; Center of Excellence in Applied Thai Traditional Medicine Research (CEATMR), Thammasat University, Khlong Luang, Pathum Thani, 12120, Thailand.
| | - Janjira Inprasit
- Department of Applied Thai Traditional Medicine, Faculty of Medicine, Thammasat University, Khlong Luang, Pathum Thani, 12120, Thailand.
| | - Nuntika Prommee
- Department of Applied Thai Traditional Medicine, Faculty of Medicine, Thammasat University, Khlong Luang, Pathum Thani, 12120, Thailand.
| | - Wicheian Khoenok
- Expert Center of Innovative Herbal Products (InnoHerb), Thailand Institute of Scientific and Technological Research (TISTR), Technopolis, Khlong Luang, Pathum Thani, 12120, Thailand.
| | - Kanjana Sriyam
- Expert Center of Innovative Herbal Products (InnoHerb), Thailand Institute of Scientific and Technological Research (TISTR), Technopolis, Khlong Luang, Pathum Thani, 12120, Thailand.
| | - Darunee Pahusee
- Expert Center of Innovative Herbal Products (InnoHerb), Thailand Institute of Scientific and Technological Research (TISTR), Technopolis, Khlong Luang, Pathum Thani, 12120, Thailand.
| | - Adis Tasanarong
- Chulabhorn International College of Medicine, Thammasat University, Klong Luang, Pathum Thani, 12120, Thailand.
| | - Buncha Ooraikul
- Department of Agricultural Food and Nutritional Science, Faculty of Agricultural Life and Environmental Sciences, University of Alberta, Edmonton, Alberta, T6G2E1, Canada; Thammasat University, Khlong Luang, Pathum Thani, 12120, Thailand.
| | - Neal M Davies
- Thammasat University, Khlong Luang, Pathum Thani, 12120, Thailand; Faculty of Pharmacy and Pharmaceutical Sciences, Katz Centre for Pharmacy and Health Research, University of Alberta, Edmonton, Alberta, T6G2E1, Canada.
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Nanotechnologies: An Innovative Tool to Release Natural Extracts with Antimicrobial Properties. Pharmaceutics 2021; 13:pharmaceutics13020230. [PMID: 33562128 PMCID: PMC7915176 DOI: 10.3390/pharmaceutics13020230] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/02/2021] [Accepted: 02/03/2021] [Indexed: 12/17/2022] Open
Abstract
Site-Specific release of active molecules with antimicrobial activity spurred the interest in the development of innovative polymeric nanocarriers. In the preparation of polymeric devices, nanotechnologies usually overcome the inconvenience frequently related to other synthetic strategies. High performing nanocarriers were synthesized using a wide range of starting polymer structures, with tailored features and great chemical versatility. Over the last decade, many antimicrobial substances originating from plants, herbs, and agro-food waste by-products were deeply investigated, significantly catching the interest of the scientific community. In this review, the most innovative strategies to synthesize nanodevices able to release antimicrobial natural extracts were discussed. In this regard, the properties and structure of the starting polymers, either synthetic or natural, as well as the antimicrobial activity of the biomolecules were deeply investigated, outlining the right combination able to inhibit pathogens in specific biological compartments.
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