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Ho KL, Yong PH, Lim SH, Ng ZX. Peperomia pellucida (L.) Kunth suppresses glycation-induced inflammatory response in human retinal pigment epithelial cell line ARPE-19 via JAK-STAT3 signaling. Arch Pharm (Weinheim) 2024:e2400299. [PMID: 39037823 DOI: 10.1002/ardp.202400299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 07/03/2024] [Accepted: 07/08/2024] [Indexed: 07/24/2024]
Abstract
The formation of advanced glycation end product (AGE) is a risk factor for diabetic retinopathy. Since the current treatment for diabetic retinopathy is accompanied by side effects, preliminary findings have suggested Peperomia pellucida (L.) Kunth as a potential alternative therapeutic option for diabetic retinopathy. This study aimed to elucidate the anti-inflammatory mechanism of P. pellucida in the AGE-stimulated human retinal pigment epithelial cell line ARPE-19. Phytochemical analysis revealed phenylpronanoids, terpenes, and fatty acids in P. pellucida. Through in vitro cell viability assay, the P. pellucida methanolic extract (IC50 = 8.70 mg/mL) and ethyl acetate fraction (IC50 = 7.34 mg/mL) were considered as non toxic for ARPE-19. AGE induced an inflammatory response in ARPE-19 by upregulating the gene (2.4-5.8-fold) and protein (1.4-2.3-fold) expression of signal transducer and activator of transcription 3 (STAT3), interleukin-8 (IL-8), monocyte chemoattractant protein-1, matrix metalloproteinase 2, and vascular endothelial growth factor. At 1.5 mg/mL, P. pellucida methanolic extract suppressed IL-8 expression (p < 0.05), implying its anti-inflammatory action at the early inflammatory stage through the Janus kinase (JAK)-STAT3 pathway. The methanolic extract also restored the ARPE-19 viability under AGE-induced inflammatory stress. The downregulation of inflammatory biomarkers along the JAK-STAT3 pathway suggested P. pellucida as a promising anti-inflammatory source for diabetic retinopathy.
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Affiliation(s)
- Keat Lam Ho
- School of Biosciences, Faculty of Science and Engineering, University of Nottingham Malaysia, Semenyih, Selangor, Malaysia
| | - Phaik Har Yong
- School of Bioscience, Faculty of Pharmacy and Biomedical Sciences, MAHSA University, Jenjarom, Selangor, Malaysia
| | - Siew Huah Lim
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Federal Territory of Kuala Lumpur, Malaysia
| | - Zhi Xiang Ng
- School of Biosciences, Faculty of Science and Engineering, University of Nottingham Malaysia, Semenyih, Selangor, Malaysia
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2
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Nguyen HM, Pham TV, Vo HQ, Nguyen HT, Nguyen LTK, Nguyen BC, Chung KL, Ho DV. Essential Oil from Vietnamese Peperomia leptostachya Hook. & Arn. (Piperaceae): Chemical Composition, Antioxidant, Anti-Inflammatory, Cytotoxic Activities, and In Silico Analysis. Molecules 2024; 29:2808. [PMID: 38930872 PMCID: PMC11206796 DOI: 10.3390/molecules29122808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 05/30/2024] [Accepted: 06/05/2024] [Indexed: 06/28/2024] Open
Abstract
This study is the first to investigate the chemical composition and antioxidant, anti-inflammatory, and cytotoxic activities of Peperomia leptostachya leaf oil. A yellow oil was obtained through hydro-distillation, with a yield of 0.1% (w/w). The GC-MS analysis revealed 66 compounds, constituting 99.6% of the oil. Sesquiterpene hydrocarbons predominated (70.4%), followed by monoterpene hydrocarbons (13.2%), oxygenated sesquiterpenes (12.4%), non-terpenic compounds (2.0%), and oxygenated monoterpenes (1.6%). Major constituents included germacrene D (25.1%), (E)-caryophyllene (17.4%), bicyclogermacrene (6.6%), α-pinene (6.2%), and β-pinene (4.7%). The assessment of antioxidant capacity via 1,1-diphenyl-2-picrylhydrazyl (DPPH) scavenging assay yielded a weak effect, with an IC50 value > 100 µg/mL. The inhibition of lipopolysaccharide-induced nitric oxide production in RAW 264.7 cells was quantified using the MTT assay, showing an IC50 value of 15.15 ± 0.68 µg/mL. Furthermore, cytotoxic effects on SK-LU-1 cell line growth were evaluated using the sulforhodamine B assay, resulting in an IC50 value of 37.45 ± 2.43 μg/mL. The anti-inflammatory activity was notable among the analyzed bioactivities of this oil. By employing a computational model, the predominant secondary metabolites in the essential oil were selected as candidates for interaction analysis with cyclooxygenase-2, an enzyme implicated in the inflammatory response. Our findings suggest that P. leptostachya leaf oil could serve as a potential source of natural compounds with prospective therapeutic effects in treating inflammatory conditions.
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Affiliation(s)
- Hien Minh Nguyen
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam; (H.M.N.); (K.L.C.)
| | - Ty Viet Pham
- Faculty of Chemistry, University of Education, Hue University, 34 Le Loi, Hue 530000, Vietnam
| | - Hung Quoc Vo
- Faculty of Pharmacy, Hue University of Medicine and Pharmacy, Hue University, 06 Ngo Quyen, Hue 530000, Vietnam; (H.Q.V.); (H.T.N.); (L.T.K.N.)
| | - Hoai Thi Nguyen
- Faculty of Pharmacy, Hue University of Medicine and Pharmacy, Hue University, 06 Ngo Quyen, Hue 530000, Vietnam; (H.Q.V.); (H.T.N.); (L.T.K.N.)
| | - Linh Thuy Khanh Nguyen
- Faculty of Pharmacy, Hue University of Medicine and Pharmacy, Hue University, 06 Ngo Quyen, Hue 530000, Vietnam; (H.Q.V.); (H.T.N.); (L.T.K.N.)
| | - Bao Chi Nguyen
- Department of Science, Technology & International Relations, Hue University, 04 Le Loi, Hue 530000, Vietnam;
| | - Khanh Linh Chung
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam; (H.M.N.); (K.L.C.)
| | - Duc Viet Ho
- Faculty of Pharmacy, Hue University of Medicine and Pharmacy, Hue University, 06 Ngo Quyen, Hue 530000, Vietnam; (H.Q.V.); (H.T.N.); (L.T.K.N.)
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Acuña-Guzman V, Montoya-Alfaro ME, Negrón-Ballarte LP, Solis-Calero C. A Machine Learning Approach for Predicting Caco-2 Cell Permeability in Natural Products from the Biodiversity in Peru. Pharmaceuticals (Basel) 2024; 17:750. [PMID: 38931417 PMCID: PMC11206960 DOI: 10.3390/ph17060750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2024] [Revised: 05/31/2024] [Accepted: 06/03/2024] [Indexed: 06/28/2024] Open
Abstract
BACKGROUND Peru is one of the most biodiverse countries in the world, which is reflected in its wealth of knowledge about medicinal plants. However, there is a lack of information regarding intestinal absorption and the permeability of natural products. The human colon adenocarcinoma cell line (Caco-2) is an in vitro assay used to measure apparent permeability. This study aims to develop a quantitative structure-property relationship (QSPR) model using machine learning algorithms to predict the apparent permeability of the Caco-2 cell in natural products from Peru. METHODS A dataset of 1817 compounds, including experimental log Papp values and molecular descriptors, was utilized. Six QSPR models were constructed: a multiple linear regression (MLR) model, a partial least squares regression (PLS) model, a support vector machine regression (SVM) model, a random forest (RF) model, a gradient boosting machine (GBM) model, and an SVM-RF-GBM model. RESULTS An evaluation of the testing set revealed that the MLR and PLS models exhibited an RMSE = 0.47 and R2 = 0.63. In contrast, the SVM, RF, and GBM models showcased an RMSE = 0.39-0.40 and R2 = 0.73-0.74. Notably, the SVM-RF-GBM model demonstrated superior performance, with an RMSE = 0.38 and R2 = 0.76. The model predicted log Papp values for 502 natural products falling within the applicability domain, with 68.9% (n = 346) showing high permeability, suggesting the potential for intestinal absorption. Additionally, we categorized the natural products into six metabolic pathways and assessed their drug-likeness. CONCLUSIONS Our results provide insights into the potential intestinal absorption of natural products in Peru, thus facilitating drug development and pharmaceutical discovery efforts.
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Affiliation(s)
| | | | | | - Christian Solis-Calero
- Faculty of Pharmacy and Biochemistry, Universidad Nacional Mayor de San Marcos, Lima 15001, Peru
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Ngo QMT, Thi Tran N, Nguyen Thi Thu P, Thi TN, Nguyen Manh K, Nguyen Van H, Pham Van L, Nguyen Van K. Carotane sesquiterpenes from Peperomia pellucida and their anti-infective activities. Nat Prod Res 2023:1-7. [PMID: 37950747 DOI: 10.1080/14786419.2023.2280923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 11/03/2023] [Indexed: 11/13/2023]
Abstract
Owing to the challenges of antimicrobial resistance, investigations of new antibiotics from medicinal plants are continuously being conducted. Peperomia pellucida is a pantropical plant used in traditional medicine for the treatment of various disorders. From the ethanol extract of a whole P. pellucida plant, one previously undescribed carotane sesquiterpene (pellucarotine), one known carotane sesquiterpene (daucol), and one phenylpropanoid (dillapiol) were isolated and structurally elucidated. Their structures were determined based on 1D and 2D NMR, HR-ESI-Mass, experimental, and computational electronic circular dichroism spectroscopic data and compared with those reported in the literature. Antimicrobial assay results showed that pellucarotine had an anti-infective effect on Candida albicans with an MIC of 512 µg/mL.
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Affiliation(s)
- Quynh-Mai Thi Ngo
- Faculty of Pharmacy, Hai Phong University of Medicine and Pharmacy, Haiphong, Vietnam
- Biomedical - Pharmaceutical Sciences Research Group, Hai Phong University of Medicine and Pharmacy, Haiphong, Vietnam
| | - Ngan Thi Tran
- Faculty of Pharmacy, Hai Phong University of Medicine and Pharmacy, Haiphong, Vietnam
- Biomedical - Pharmaceutical Sciences Research Group, Hai Phong University of Medicine and Pharmacy, Haiphong, Vietnam
| | - Phuong Nguyen Thi Thu
- Faculty of Pharmacy, Hai Phong University of Medicine and Pharmacy, Haiphong, Vietnam
- Biomedical - Pharmaceutical Sciences Research Group, Hai Phong University of Medicine and Pharmacy, Haiphong, Vietnam
| | - Thu Nguyen Thi
- Department of Analytical Chemistry and Standardization, National Institute of Medicinal Materials, Hanoi, Vietnam
| | - Khoa Nguyen Manh
- Department of Analytical Chemistry and Standardization, National Institute of Medicinal Materials, Hanoi, Vietnam
| | - Hung Nguyen Van
- Faculty of Pharmacy, Hai Phong University of Medicine and Pharmacy, Haiphong, Vietnam
- Biomedical - Pharmaceutical Sciences Research Group, Hai Phong University of Medicine and Pharmacy, Haiphong, Vietnam
| | - Linh Pham Van
- Biomedical - Pharmaceutical Sciences Research Group, Hai Phong University of Medicine and Pharmacy, Haiphong, Vietnam
| | - Khai Nguyen Van
- Biomedical - Pharmaceutical Sciences Research Group, Hai Phong University of Medicine and Pharmacy, Haiphong, Vietnam
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Anticariogenic Activity of Three Essential Oils from Brazilian Piperaceae. Pharmaceuticals (Basel) 2022; 15:ph15080972. [PMID: 36015120 PMCID: PMC9416246 DOI: 10.3390/ph15080972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/02/2022] [Accepted: 08/03/2022] [Indexed: 11/25/2022] Open
Abstract
The current trend toward using natural food additives, cosmetics, and medicines has motivated industries to substitute synthetic compounds for natural products. Essential oils (EOs) from medicinal plants are a well-known source of chemical compounds that display several interesting biological activities, including antimicrobial action. In this study, we investigated the antibacterial activity of EOs extracted from three Piperaceae species collected in the Brazilian Amazon region against a representative panel of cariogenic bacteria. The minimum inhibitory concentration (MIC) of the essential oils extracted from Peperomia pellucida (PP-EO), Piper marginatum (PM-EO), and Piper callosum (PC-EO) was determined against Streptococcus mutans, S. mitis, S. sanguinis, S. salivarius, S. sobrinus, Enterococcus faecalis, and Lactobacillus casei by using the microplate microdilution method. PM-EO, PC-EO, and PP-EO displayed antibacterial activity against all the tested cariogenic bacteria. PM-EO displayed the best inhibitory activity, with MIC values ranging from 50 to 500 µg/mL. The lowest MIC values were obtained for PM-EO against S. mitis (MIC = 75 μg/mL), Lactobacillus casei (MIC = 50 μg/mL), and S. mutans (MIC = 50 μg/mL). Gas chromatography mass spectrometry (GC-MS) analysis allowed the chemical composition of all the EOs to be identified. The main constituents of PM-EO, PC-EO, and PP-EO were 3,4-(methylenedioxy)propiophenone, α-pinene, and dillapiole, respectively. Finally, the compounds that were exclusively detected in PM-EO are highlighted. Our results suggest that PM-EO may be used in products for treating dental caries and periodontal diseases.
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Bioactive Phenolic Compounds from Peperomia obtusifolia. Molecules 2022; 27:molecules27144363. [PMID: 35889234 PMCID: PMC9315869 DOI: 10.3390/molecules27144363] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/04/2022] [Accepted: 07/05/2022] [Indexed: 02/01/2023] Open
Abstract
Peperomia obtusifolia (L.) A. Dietr., native to Middle America, is an ornamental plant also traditionally used for its mild antimicrobial properties. Chemical investigation on the leaves of P. obtusifolia resulted in the isolation of two previously undescribed compounds, named peperomic ester (1) and peperoside (2), together with five known compounds, viz. N-[2-(3,4-dihydroxyphenyl)ethyl]-3,4-dihydroxybenzamide (3), becatamide (4), peperobtusin A (5), peperomin B (6), and arabinothalictoside (7). The structures of these compounds were elucidated by 1D and 2D NMR techniques and HREIMS analyses. Compounds 1–7 were evaluated for their anthelmintic (against Caenorhabditis elegans), antifungal (against Botrytis cinerea, Septoria tritici and Phytophthora infestans), antibacterial (against Bacillus subtilis and Aliivibrio fischeri), and antiproliferative (against PC-3 and HT-29 human cancer cell lines) activities. The known peperobtusin A (5) was the most active compound against the PC-3 cancer cell line with IC50 values of 25.6 µM and 36.0 µM in MTT and CV assays, respectively. This compound also induced 90% inhibition of bacterial growth of the Gram-positive B. subtilis at a concentration of 100 µM. In addition, compound 3 showed anti-oomycotic activity against P. infestans with an inhibition value of 56% by using a concentration of 125 µM. However, no anthelmintic activity was observed.
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Odukoya JO, Odukoya JO, Mmutlane EM, Ndinteh DT. Ethnopharmacological Study of Medicinal Plants Used for the Treatment of Cardiovascular Diseases and Their Associated Risk Factors in sub-Saharan Africa. PLANTS (BASEL, SWITZERLAND) 2022; 11:1387. [PMID: 35631812 PMCID: PMC9143319 DOI: 10.3390/plants11101387] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/04/2022] [Accepted: 04/06/2022] [Indexed: 12/16/2022]
Abstract
Cardiovascular diseases (CVDs) are the leading cause of global mortality, including deaths arising from non-communicable diseases in sub-Saharan Africa (SSA). Consequently, this study aimed to provide details of medicinal plants (MPs) employed in SSA for the treatment of CVDs and their related risk factors to open new avenues for the discovery of novel drugs. The extensive ethnopharmacological literature survey of these MPs in 41 SSA countries was based on studies from 1982 to 2021. It revealed 1,085 MPs belonging to 218 botanical families, with Fabaceae (9.61%), Asteraceae (6.77%), Apocynaceae (3.93%), Lamiaceae (3.75%), and Rubiaceae (3.66%) being the most represented. Meanwhile, Allium sativum L., Persea americana Mill., Moringa oleifera Lam., Mangifera indica L., and Allium cepa L. are the five most utilised plant species. The preferred plant parts include the leaves (36%), roots (21%), barks (14%), fruits (7%), and seeds (5%), which are mostly prepared by decoction. Benin, Mauritius, Nigeria, South Africa, and Togo had the highest reported use while most of the investigations were on diabetes and hypertension. Despite the nutraceutical advantages of some of these MPs, their general toxicity potential calls for caution in their human long-term use. Overall, the study established the need for governments of SSA countries to validate the efficacy/safety of these MPs as well as provide affordable, accessible, and improved modern healthcare services.
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Affiliation(s)
- Johnson Oluwaseun Odukoya
- Centre for Natural Products Research, Department of Chemical Sciences, University of Johannesburg, Doornfontein, P.O. Box 17011, Johannesburg 2028, South Africa;
- Department of Chemistry, The Federal University of Technology, Akure PMB 704, Ondo State, Nigeria
| | - Julianah Olayemi Odukoya
- Department of Biotechnology and Food Technology, Faculty of Science, University of Johannesburg, Doornfontein, P.O. Box 17011, Johannesburg 2028, South Africa;
- Department of Food Science and Technology, Kwara State University, Malete, Ilorin PMB 1530, Kwara State, Nigeria
| | - Edwin Mpho Mmutlane
- Centre for Natural Products Research, Department of Chemical Sciences, University of Johannesburg, Doornfontein, P.O. Box 17011, Johannesburg 2028, South Africa;
| | - Derek Tantoh Ndinteh
- Centre for Natural Products Research, Department of Chemical Sciences, University of Johannesburg, Doornfontein, P.O. Box 17011, Johannesburg 2028, South Africa;
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Chemical Composition of Leaves, Stem, and Roots of Peperomia pellucida (L.) Kunth. Molecules 2022; 27:molecules27061847. [PMID: 35335210 PMCID: PMC8950162 DOI: 10.3390/molecules27061847] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/20/2022] [Accepted: 01/26/2022] [Indexed: 12/04/2022] Open
Abstract
Peperomia pellucida is a species known in the Amazon as “erva-de-jabuti” that has been used in several therapeutic applications based on folk medicine. Herein, we describe the classes, subclasses, and the main compounds of the leaves, stems, and roots from P. pellucida by ultra-high performance liquid chromatography coupled to high-resolution mass spectrometry associated with molecular networks, mirror plot on the GNPS library, and machine learning. These data show compounds that were annotated for the first time in the Peperomia genus, such as 2′,4′,5′-trihydroxybutyrophenonevelutin, dehydroretrofractamide C, and retrofractamide B.
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Ho KL, Yong PH, Wang CW, Kuppusamy UR, Ngo CT, Massawe F, Ng ZX. Peperomia pellucida (L.) Kunth and eye diseases: A review on phytochemistry, pharmacology and toxicology. JOURNAL OF INTEGRATIVE MEDICINE 2022; 20:292-304. [PMID: 35153134 DOI: 10.1016/j.joim.2022.02.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 01/19/2022] [Indexed: 12/13/2022]
Abstract
Peperomia pellucida (L.) Kunth is a medicinal plant used to manage inflammatory illnesses such as conjunctivitis, and gastrointestinal and respiratory tract disorders in tropical and subtropical regions. However, little is known about its pharmacological mechanism of action against eye diseases. This review aims to critically discuss the phytochemistry, pharmacology and toxicology of P. pellucida as well as its roles in the treatment of cataract, glaucoma and diabetic retinopathy. Recent developments in the uses of P. pellucida for healthcare and nutraceutical products by the pharmaceutical industry are also covered in this review. For this review, a literature search was performed with PubMed, ScienceDirect, SciFinder Scholar and Scopus databases, using relevant keywords. Among the various phytochemicals identified from P. pellucida, β-caryophyllene, carotol, dillapiole, ellagic acid, pellucidin A, phytol and vitexin exhibit strong pharmacological activities within the mitogen-activated protein kinase and nuclear factor-κB signalling pathways in inflammatory eye diseases. The antihypertensive, anti-inflammatory, antioxidant, antihyperglycemic and anti-angiogenic activities displayed by P. pellucida extracts in many in vitro, in vivo and clinical studies suggest its potential role in the management of inflammatory eye diseases. P. pellucida extract was non-toxic against normal cell lines but displayed mild toxicity in animal models. The growing public interest in P. pellucida has inspired the nutraceutical and pharmaceutical industries to process the plant into health products. Although the potential pharmacological mechanisms against eye diseases have been summarized, further studies of the interactions among constituent phytochemicals from P. pellucida within various signalling pathways shall support the use of the plant as an alternative therapeutic source.
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Affiliation(s)
- Keat Lam Ho
- School of Biosciences, Faculty of Science and Engineering, University of Nottingham Malaysia, 43500 Selangor, Malaysia
| | - Phaik Har Yong
- School of Bioscience, Faculty of Medicine, Bioscience and Nursing, MAHSA University, 42610 Selangor, Malaysia
| | - Chee Woon Wang
- Department of Biochemistry, Faculty of Medicine, Bioscience and Nursing, MAHSA University, 42610 Selangor, Malaysia
| | - Umah Rani Kuppusamy
- Department of Biomedical Science, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Chek Tung Ngo
- Optimax Sunway Eye Specialist Centre, Bandar Sunway, 46150 Selangor, Malaysia
| | - Festo Massawe
- School of Biosciences, Faculty of Science and Engineering, University of Nottingham Malaysia, 43500 Selangor, Malaysia
| | - Zhi Xiang Ng
- School of Biosciences, Faculty of Science and Engineering, University of Nottingham Malaysia, 43500 Selangor, Malaysia.
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Alves NSF, Kaory Inoue SG, Carneiro AR, Albino UB, Setzer WN, Maia JG, Andrade EH, da Silva JKR. Variation in Peperomia pellucida growth and secondary metabolism after rhizobacteria inoculation. PLoS One 2022; 17:e0262794. [PMID: 35061852 PMCID: PMC8785609 DOI: 10.1371/journal.pone.0262794] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 01/05/2022] [Indexed: 01/31/2023] Open
Abstract
Peperomia pellucida L. Kunth is a herb well-known for its secondary metabolites (SM) with biological potential. In this study, the variations in the SM of P. pellucida during association with rhizobacteria were evaluated. Plants were inoculated with Enterobacter asburiae and Klebsiella variicola, which were identified by sequencing of the 16S rRNA gene. The data were evaluated at 7, 21, and 30-day post inoculation (dpi). Plant-bacteria symbiosis improved plant growth and weight. Total phenolic content and phenylalanine ammonia lyase enzyme activity had a significant increase mainly at 30 dpi. P. pellucida was mainly composed of phenylpropanoids (37.30-52.28%) and sesquiterpene hydrocarbons (39.28-49.42%). The phenylpropanoid derivative 2,4,5-trimethoxy-styrene (ArC2), the sesquiterpene hydrocarbon ishwarane, and the phenylpropanoid dillapiole were the major compounds. Principal component analysis (PCA) of the classes and compounds ≥ 2.0% indicated that plants colonized by E. asburiae had a reduction in the content of sesquiterpene hydrocarbons and an increase in phenylpropanoids and derivatives. Plants treated with this bacterium also had an increase in the content of 2,4,5-trimethoxystyrene at 30 dpi. Plants inoculated with K. variicola had significant increases only in the content of the classes monoterpene hydrocarbons and 'other compounds' (hydrocarbons, esters, ketones, etc.). These data suggest that the production of plant secondary metabolites can be modified depending on the type of rhizobacteria inoculated.
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Affiliation(s)
| | | | - Adriana Ribeiro Carneiro
- Programa de Pós-Graduação em Biotecnologia, Universidade Federal do Pará,
Belém, Brazil
- Faculdade de Biotecnologia, Universidade Federal do Pará, Belém,
Brazil
| | | | - William N. Setzer
- Department of Chemistry, University of Alabama in Huntsville, Huntsville,
AL, United States of America
- Aromatic Plant Research Center, Lehi, UT, United States of
America
| | - José Guilherme Maia
- Programa de Pós-Graduação em Química, Universidade Federal do Pará,
Belém, Brazil
| | | | - Joyce Kelly R. da Silva
- Programa de Pós-Graduação em Biotecnologia, Universidade Federal do Pará,
Belém, Brazil
- Faculdade de Biotecnologia, Universidade Federal do Pará, Belém,
Brazil
- Programa de Pós-Graduação em Química, Universidade Federal do Pará,
Belém, Brazil
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Mesquita KDSM, Feitosa BDS, Cruz JN, Ferreira OO, Franco CDJP, Cascaes MM, de Oliveira MS, Andrade EHDA. Chemical Composition and Preliminary Toxicity Evaluation of the Essential Oil from Peperomia circinnata Link var. circinnata. ( Piperaceae) in Artemia salina Leach. Molecules 2021; 26:7359. [PMID: 34885940 PMCID: PMC8659193 DOI: 10.3390/molecules26237359] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 11/25/2021] [Accepted: 11/30/2021] [Indexed: 01/19/2023] Open
Abstract
Peperomia Ruiz and Pav, the second largest genus of the Piperaceae, has over the years shown potential biological activities. In this sense, the present work aimed to carry out a seasonal and circadian study on the chemical composition of Peperomia circinata essential oils and aromas, as well as to evaluate the preliminary toxicity in Artemia salina Leach and carry out an in silico study on the interaction mechanism. The chemical composition was characterized by gas chromatography (GC/MS and GC-FID). In the seasonal study the essential oil yields had a variation of 1.2-7.9%, and in the circadian study the variation was 1.5-5.6%. The major compounds in the seasonal study were β-phellandrene and elemicin, in the circadian they were β-phellandrene and myrcene, and the aroma was characterized by the presence of β-phellandrene. The multivariate analysis showed that the period and time of collection influenced the essential oil and aroma chemical composition. The highest toxicity value was observed for the essential oil obtained from the dry material, collected in July with a value of 14.45 ± 0.25 μg·mL-1, the in silico study showed that the major compounds may be related to potential biological activity demonstrated by the present study.
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Affiliation(s)
- Késsia do Socorro Miranda Mesquita
- Faculdade de Farmácia, Universidade Federal do Pará, Rua Augusto Corrêa S/N, Guamá, Belém 66075-900, PA, Brazil; (K.d.S.M.M.); (B.d.S.F.); (E.H.d.A.A.)
| | - Bruna de Souza Feitosa
- Faculdade de Farmácia, Universidade Federal do Pará, Rua Augusto Corrêa S/N, Guamá, Belém 66075-900, PA, Brazil; (K.d.S.M.M.); (B.d.S.F.); (E.H.d.A.A.)
| | - Jorddy Neves Cruz
- Laboratório Adolpho Ducke-Coordenação de Botânica, Museu Paraense Emílio Goeldi, Av. Perimetral, 1901, Terra Firme, Belém 66077-830, PA, Brazil; (J.N.C.); (O.O.F.); (C.d.J.P.F.)
| | - Oberdan Oliveira Ferreira
- Laboratório Adolpho Ducke-Coordenação de Botânica, Museu Paraense Emílio Goeldi, Av. Perimetral, 1901, Terra Firme, Belém 66077-830, PA, Brazil; (J.N.C.); (O.O.F.); (C.d.J.P.F.)
- Programa de Pós-Graduação em Biodiversidade e Biotecnologia—Rede Bionorte, Universidade Federal do Pará, Rua Augusto Corrêa S/N, Guamá, Belém 66075-900, PA, Brazil
| | - Celeste de Jesus Pereira Franco
- Laboratório Adolpho Ducke-Coordenação de Botânica, Museu Paraense Emílio Goeldi, Av. Perimetral, 1901, Terra Firme, Belém 66077-830, PA, Brazil; (J.N.C.); (O.O.F.); (C.d.J.P.F.)
| | - Márcia Moraes Cascaes
- Programa de Pós-Graduação em Química, Universidade Federal do Pará, Rua Augusto Corrêa S/N, Guamá, Belém 66075-900, PA, Brazil;
| | - Mozaniel Santana de Oliveira
- Laboratório Adolpho Ducke-Coordenação de Botânica, Museu Paraense Emílio Goeldi, Av. Perimetral, 1901, Terra Firme, Belém 66077-830, PA, Brazil; (J.N.C.); (O.O.F.); (C.d.J.P.F.)
| | - Eloisa Helena de Aguiar Andrade
- Faculdade de Farmácia, Universidade Federal do Pará, Rua Augusto Corrêa S/N, Guamá, Belém 66075-900, PA, Brazil; (K.d.S.M.M.); (B.d.S.F.); (E.H.d.A.A.)
- Laboratório Adolpho Ducke-Coordenação de Botânica, Museu Paraense Emílio Goeldi, Av. Perimetral, 1901, Terra Firme, Belém 66077-830, PA, Brazil; (J.N.C.); (O.O.F.); (C.d.J.P.F.)
- Programa de Pós-Graduação em Biodiversidade e Biotecnologia—Rede Bionorte, Universidade Federal do Pará, Rua Augusto Corrêa S/N, Guamá, Belém 66075-900, PA, Brazil
- Programa de Pós-Graduação em Química, Universidade Federal do Pará, Rua Augusto Corrêa S/N, Guamá, Belém 66075-900, PA, Brazil;
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12
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Anti-Inflammatory Activity of a Medicinal Herb Extract Mixture, HM-V, on an Animal Model of DNCB-Induced Chronic Skin Inflammation. PLANTS 2021; 10:plants10081546. [PMID: 34451592 PMCID: PMC8400547 DOI: 10.3390/plants10081546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/26/2021] [Accepted: 07/26/2021] [Indexed: 11/25/2022]
Abstract
Chronic inflammatory skin diseases, such as atopic dermatitis, are caused by the accumulation of immune cells and the overproduction of chemokines, including CCL17 and CCL22, due to the activation of pro-inflammatory cytokines secreted from keratinocytes. In the present study, the inhibitory activity of HM-V on tumor necrosis factor alpha (TNF-α)/interferon gamma (IFN-γ)-induced pro-inflammatory cytokines was examined in human keratinocytes (HaCaTs) and 2,4-dinitrofluorobenzene (DNCB)-induced chronic skin contact dermatitis animal models. Traditional Asian medicinal herb extracts mixture (HM-V), which have been extensively used in Asian medicine, were utilized. In TNF-α/IFN-γ-induced HaCaTs, HM-V strongly inhibited mRNA and protein expression of CCL17 and CCL22 in a concentration-dependent manner. The expression of pro-inflammatory cytokines such as TNF-α, IL-1β, and IL-6 was also inhibited. Therefore, localized administration of HM-V in the DNCB-induced animal model alleviated immune cell deposition and skin inflammation. The results indicate that HM-V exerts inhibitory effects on keratinocyte production of CCL17 and CCL22. Furthermore, HM-V may be a useful anti-inflammatory agent for the prevention and treatment of inflammatory skin diseases.
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13
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Frankova A, Vistejnova L, Merinas-Amo T, Leheckova Z, Doskocil I, Wong Soon J, Kudera T, Laupua F, Alonso-Moraga A, Kokoska L. In vitro antibacterial activity of extracts from Samoan medicinal plants and their effect on proliferation and migration of human fibroblasts. JOURNAL OF ETHNOPHARMACOLOGY 2021; 264:113220. [PMID: 32805355 DOI: 10.1016/j.jep.2020.113220] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/27/2020] [Accepted: 07/27/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The prevalence of different types of chronic wounds, due to the ageing population and increase incidence of diseases, is becoming a worldwide problem. Various medicinal plants used in folk medicine have demonstrated wound healing and antimicrobial properties, and some of these species are currently used in commercial preparations. Despite the well-documented and rich tradition of the use of local herbs for the treatment of skin injuries in Samoan folk medicine, their wound healing potential has not yet been systematically studied. AIM OF THE STUDY Investigation into the in vitro antibacterial activity of ethanol extracts from 14 medicinal plants used in Samoan traditional medicine for the healing of wounds, burns and sores, and their effects on the proliferation and migration of human fibroblasts. MATERIALS AND METHODS The antibacterial activity of these extracts was tested against pathogens associated with infected skin injuries, using the broth microdilution method. The effect on migration, proliferation and viability of human dermal fibroblasts was evaluated using wound healing scratch assay, cell proliferation assay, and thiazolyl blue tetrazolium bromide cytotoxicity test. RESULTS The extracts from Cerbera manghas, Commelina diffusa, Kleinhovia hospita, Mikania micrantha, Omalanthus nutans, Peperomia pellucida, Phymatosorus scolopendria, Piper graeffei, Psychotria insularum, and Schizostachyum glaucifolium inhibited the growth of Staphylococcus aureus at the minimum inhibitory concentration (MIC) of ≥4 μg/mL, whereas C. manghas and P. pellucida produced the same MIC against both Escherichia coli and Pseudomonas aeruginosa. Among the antibacterially active species, C. diffusa, K. hospita, P. scolopendria, P. insularum, and S. glaucifolium did not produce toxicity towards the standard line of normal adult human dermal fibroblasts (IC80 > 128 μg/mL). In addition, extracts from Barringtonia asiatica, C. manghas, M. micrantha, O. nutans, P. insularum, and Piper graeffei stimulated significant migration of dermal fibroblasts, while M. micrantha, O. nutans, and P. insularum did not affect cell proliferation at a concentration of 32 μg/mL. CONCLUSIONS The results suggest that the above-mentioned species of Samoan medicinal plants can be used for the development of new wound healing agents. However, further phytochemical and pharmacological research is needed regarding the isolation and identification of their active constituents.
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Affiliation(s)
- A Frankova
- Department of Food Science, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamycka 129, 165 21 Praha 6, Suchdol, Czech Republic
| | - L Vistejnova
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, 323 00, Plzen, Czech Republic
| | - T Merinas-Amo
- Department of Genetics, University of Cordoba, Campus Rabanales, Gregor Mendel Building, 14071, Cordoba, Spain
| | - Z Leheckova
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, 323 00, Plzen, Czech Republic
| | - I Doskocil
- Department of Microbiology, Nutrition and Dietetics, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamycka 129, 165 21 Praha 6, Suchdol, Czech Republic
| | - J Wong Soon
- Scientific Research Organisation of Samoa, P.O. Box 6597, Apia, Samoa
| | - T Kudera
- Department of Crop Sciences and Agroforestry, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Kamycka 129, 165 21 Praha 6, Suchdol, Czech Republic
| | - F Laupua
- Scientific Research Organisation of Samoa, P.O. Box 6597, Apia, Samoa
| | - A Alonso-Moraga
- Department of Genetics, University of Cordoba, Campus Rabanales, Gregor Mendel Building, 14071, Cordoba, Spain
| | - L Kokoska
- Department of Crop Sciences and Agroforestry, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Kamycka 129, 165 21 Praha 6, Suchdol, Czech Republic.
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14
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Ng ZX, Than MJY, Yong PH. Peperomia pellucida (L.) Kunth herbal tea: Effect of fermentation and drying methods on the consumer acceptance, antioxidant and anti-inflammatory activities. Food Chem 2020; 344:128738. [PMID: 33280962 DOI: 10.1016/j.foodchem.2020.128738] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/23/2020] [Accepted: 11/23/2020] [Indexed: 12/14/2022]
Abstract
This study aimed to compare the effect of fermentation and drying on the organoleptic characteristic, total phenolic content, antioxidant and anti-inflammatory activities of Peperomia pellucida (L.) Kunth tea with commercial Camellia sinensis tea. The phenolic content, antioxidant and anti-inflammatory activities in P. pellucida were significantly (p < 0.05) lower than C. sinensis, irrespective of the fermentation and drying methods. Although fermentation decreased the total phenolics, flavonoids and antioxidant activity in both P. pellucida and C. sinensis teas, the anti-inflammatory potential of P. pellucida was significantly (p < 0.05) improved. Principle component analysis revealed that fermentation and drying methods contributed to respective 42.3% and 27.2% of activity variation in P. pellucida. The browning index was positively correlated with fermentation index (r = 0.670, p < 0.05) of leaves samples. Overall, unfermented and fermented P. pellucida leaves were best dried with microwaving and freeze drying, respectively for optimal antioxidant and anti-inflammatory activities with favorable consumer's acceptance.
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Affiliation(s)
- Zhi Xiang Ng
- School of Biosciences, Faculty of Science and Engineering, University of Nottingham Malaysia, Selangor, Malaysia.
| | - Michelle Jing Yu Than
- School of Biosciences, Faculty of Science and Engineering, University of Nottingham Malaysia, Selangor, Malaysia.
| | - Phaik Har Yong
- School of Bioscience, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Selangor, Malaysia.
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15
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Queiroz APS, Freitas MCC, Silva JRA, Lima AB, Sawada L, Martins Monteiro RF, de Freitas ACGA, Maués LAL, Arruda AC, Silva MN, Maia CSF, Fontes-Júnior EA, do Nascimento JLM, Arruda MSP, Bastos GNT. Pellucidin A promotes antinociceptive activity by peripheral mechanisms inhibiting COX-2 and NOS: In vivo and in silico study. PLoS One 2020; 15:e0238834. [PMID: 32941458 PMCID: PMC7498071 DOI: 10.1371/journal.pone.0238834] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 07/27/2020] [Indexed: 01/22/2023] Open
Abstract
Peperomia pellucida (PP) belongs to the Peperomia genus, which has a pantropic distribution. PP is used to treat a wide range of symptoms and diseases, such as pain, inflammation, and hypertension. Intriguingly, PP extract is used by different tropical countries for its anti-inflammatory and antinociceptive effects. In fact, these outcomes have been shown in animal models, though the exact bioactive products of PP that exert such results are yet to be discovered. To determine and elucidate the mechanism of action of one of these compounds, we evaluated the antinociceptive effect of the novel dimeric ArC2 compound, Pellucidin A by using in vivo and in silico models. Animals were then subjected to chemical, biphasic and thermal models of pain. Pellucidin A induced an antinociceptive effect against chemical-induced pain in mice, demonstrated by the decrease of the number of writhes, reaching a reduction of 43% and 65% in animals treated with 1 and 5 mg/kg of Pellucidin A, respectively. In the biphasic response (central and peripheral), animals treated with Pellucidin A showed a significant reduction of the licking time exclusively during the second phase (inflammatory phase). In the hot-plate test, Pellucidin A did not have any impact on the latency time of the treated animals. Moreover, in vivo and in silico results show that Pellucidin A’s mechanism of action in the inflammatory pain occurs most likely through interaction with the nitric oxide (NO) pathway. Our results demonstrate that the antinociceptive activities of Pellucidin A operate under mechanism(s) of peripheral action, involving inflammatory mediators. This work provides insightful novel evidence of the biological properties of Pellucidin A, and leads to a better understanding of its mechanism of action, pointing to potential pharmacological use.
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Affiliation(s)
- Amanda Pâmela Santos Queiroz
- Laboratório de Neuroinflamação, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Pará, Brazil
| | - Manolo Cleiton Costa Freitas
- Laboratório Central de Extração, Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, Belém, Pará, Brazil
- Universidade Federal do Pará, Campus Universitário do Marajó- Breves, Breves, Pará, Brasil
| | - José Rogério A. Silva
- Laboratório de Planejamento e Desenvolvimento de Fármacos, Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, Belém, Pará, Brasil
| | - Anderson Bentes Lima
- Laboratório de Neuroinflamação, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Pará, Brazil
- Laboratório de Morfofisiologia Aplicada à Saúde, Universidade do Estado do Pará, Belém, Pará, Brazil
| | - Leila Sawada
- Laboratório de Neuroinflamação, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Pará, Brazil
| | - Rayan Fidel Martins Monteiro
- Laboratório de Neuroinflamação, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Pará, Brazil
| | | | - Luís Antônio Loureiro Maués
- Laboratório de Neuroinflamação, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Pará, Brazil
| | - Alberto Cardoso Arruda
- Laboratório Central de Extração, Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, Belém, Pará, Brazil
| | - Milton Nascimento Silva
- Laboratório Central de Extração, Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, Belém, Pará, Brazil
- Laboratório Cromatografia Líquida, Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, Belém, Pará, Brazil
| | - Cristiane Socorro Ferraz Maia
- Laboratório de Farmacologia da inflamação e comportamento, Faculdade de Farmácia, Universidade Federal do Pará, Belém, Pará, Brasil
| | - Enéas Andrade Fontes-Júnior
- Laboratório de Farmacologia da inflamação e comportamento, Faculdade de Farmácia, Universidade Federal do Pará, Belém, Pará, Brasil
| | - José Luiz M. do Nascimento
- Laboratório de Neuroquímica Molecular e Celular, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Pará, Brasil
| | - Mara Silvia P. Arruda
- Laboratório Central de Extração, Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, Belém, Pará, Brazil
| | - Gilmara N. T. Bastos
- Laboratório de Neuroinflamação, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Pará, Brazil
- * E-mail:
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16
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Ng ZX, Samsuri SN, Yong PH. The antioxidant index and chemometric analysis of tannin, flavonoid, and total phenolic extracted from medicinal plant foods with the solvents of different polarities. J FOOD PROCESS PRES 2020. [DOI: 10.1111/jfpp.14680] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Zhi Xiang Ng
- School of Biosciences Faculty of Science and Engineering University of Nottingham Malaysia Selangor Malaysia
| | - Siti Najia Samsuri
- School of Biosciences Faculty of Science and Engineering University of Nottingham Malaysia Selangor Malaysia
| | - Phaik Har Yong
- School of Biosciences Faculty of Medicine, Biosciences and Nursing MAHSA University Selangor Malaysia
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17
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Phumthum M, Balslev H. Anti-Infectious Plants of The Thai Karen: A Meta-Analysis. Antibiotics (Basel) 2020; 9:antibiotics9060298. [PMID: 32498413 PMCID: PMC7345792 DOI: 10.3390/antibiotics9060298] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 05/30/2020] [Accepted: 05/31/2020] [Indexed: 12/13/2022] Open
Abstract
Pharmacology has developed many drugs to treat infections, but many people, especially in developing countries, cannot afford to purchase them, and still depend on traditional knowledge and local medicinal plants to fight off infections. In addition, numerous microbes have developed resistance to the pharmaceutical drugs developed to fight them, and for many, such as Covid-19, effective drugs remain to be found. Ethnomedicinal knowledge is useful, not only for local people as a source of medicine for primary health care, but also for new pharmacological discoveries. This study aimed to identify the plants that the Karen, the largest hill-tribe ethnic minority in northern and western Thailand, use for treatments of infectious diseases. We present a meta-analysis of data from 16 ethnobotanical studies of 25 Karen villages with the aim of understanding traditional knowledge and treatments and point to potential plants for further pharmacological development. The Karen used 127 plant species from 59 plant families to treat infections and infectious diseases. The Cultural Important Index (CI) showed that the Leguminosae, Euphorbiaceae, Asteraceae, Lauraceae, Apocynaceae, Menispermaceae, and Lamiaceae were the most commonly used families. As for species, Cleidion javanicum, Tinospora crispa, Litsea cubeba, Aesculus assamica, Tadehagi triquetrum, Senna alata, Tithonia diversifolia, Embelia sessiliflora, and Combretum indicum were the most commonly used in treatments of infectious diseases. We suggest that these plant species should be the first to be pharmacologically tested for possible development of medicines, and the remaining species registered should subsequently undergo testing.
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Affiliation(s)
- Methee Phumthum
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
- Sireeruckhacharti Nature Learning Park, Mahidol University, Nakhon Pathom 73170, Thailand
- Correspondence:
| | - Henrik Balslev
- Department of Biology, Faculty of Natural Science, Aarhus University, 8000 Aarhus, Denmark;
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18
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Hung NH, Satyal P, Hieu HV, Chuong NTH, Dai DN, Huong LT, Tai TA, Setzer WN. Mosquito Larvicidal Activity of the Essential Oils of Erechtites Species Growing Wild in Vietnam. INSECTS 2019; 10:insects10020047. [PMID: 30717463 PMCID: PMC6410152 DOI: 10.3390/insects10020047] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 01/26/2019] [Accepted: 01/31/2019] [Indexed: 12/26/2022]
Abstract
Mosquito-borne infections are a constant problem in Vietnam, and mosquito vector control is a primary approach to control these infections. Essential oils represent environmentally friendly alternatives to synthetic pesticides for mosquito control. The essential oils of two weedy species in Vietnam, Erechtites hieraciifolius and E. valerianifolius, have been obtained by hydrodistillation and analyzed by gas chromatography–mass spectrometry. The essential oils have been screened for mosquito larvicidal activity against Aedes albopictus, Ae. aegypti, and Culex quinquefasciatus. The essential oil from the aerial parts of E. hieraciifolius was rich in α-pinene (14.5%), limonene (21.4%), and caryophyllene oxide (15.1%), while E. valerianifolius essential oil was dominated by myrcene (47.8%) and α-pinene (30.2%). Both essential oils showed good larvicidal activity against Ae. albopictus (24-h LC50 10.5 and 5.8 μg/mL, respectively) and Ae. aegypti (24-h LC50 10.6 and 12.5 μg/mL, respectively). The essential oil of E. valerianifolius also showed good activity against Cx. quinquefasciatus larvae (24-h LC50 = 40.7 μg/mL). Thus, Erechtites essential oils may serve as low-cost vector control agents for mosquito-borne infections.
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Affiliation(s)
- Nguyen Huy Hung
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University,03 Quang Trung, Da Nang 50000, Vietnam.
| | - Prabodh Satyal
- Aromatic Plant Research Center, 230 N 1200 E, Suite 102, Lehi, UT 84043, USA.
| | - Ho Viet Hieu
- Parasitology and Entomology Unit, Department of Medicine, Duy Tan University, 03 Quang Trung, Da Nang 50000, Vietnam.
| | - Nguyen Thi Hong Chuong
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University,03 Quang Trung, Da Nang 50000, Vietnam.
| | - Do Ngoc Dai
- Faculty of Agriculture, Forestry and Fishery, Nghe An Economics University, Vinh City 43000, Nghe An Province, Vietnam.
| | - Le Thi Huong
- School of Natural Science Education, Vinh University, 182 Le Duan, Vinh City 43000, Nghệ An Province, Vietnam.
| | - Thieu Anh Tai
- Department of Pharmacy, Duy Tan University, 03⁻Quang Trung, Da Nang 50000, Vietnam.
| | - William N Setzer
- Aromatic Plant Research Center, 230 N 1200 E, Suite 102, Lehi, UT 84043, USA.
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA.
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