1
|
Duong TH, Trung NT, Phan CTD, Nguyen VD, Nguyen HC, Dao TBN, Mai DT, Niamnont N, Tran TNM, Sichaem J. A new diterpenoid from the leaves of Phyllanthus acidus. Nat Prod Res 2020; 36:539-545. [DOI: 10.1080/14786419.2020.1789980] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Thuc-Huy Duong
- Faculty of Chemistry, University of Education, Ho Chi Minh City, Vietnam
| | - Nguyen Tien Trung
- Laboratory of Computational Chemistry and Modelling (LCCM), Faculty of Natural Sciences, Quy Nhon University, Qui Nhơn, Vietnam
| | - Cam-Tu Dang Phan
- Laboratory of Computational Chemistry and Modelling (LCCM), Faculty of Natural Sciences, Quy Nhon University, Qui Nhơn, Vietnam
| | - Vu-Duy Nguyen
- Faculty of Chemistry, University of Education, Ho Chi Minh City, Vietnam
| | - Hoang-Chuong Nguyen
- University of Science, Vietnam National University, Ho Chi Minh City, Vietnam
| | - Thi-Bich-Ngoc Dao
- Faculty of Chemistry, University of Education, Ho Chi Minh City, Vietnam
| | - Dinh-Tri Mai
- Graduate University of Science and Technology, Viet Nam Academy of Science and Technology, Hanoi, Vietnam
- Institute of Chemical Technology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam
| | - Nakorn Niamnont
- Faculty of Science, Organic Synthesis, Electrochemistry & Natural Product Research Unit, Department of Chemistry, King Mongkut's University of Technology Thonburi, Bangkok, Thailand
| | - Thi-Ngoc-Mai Tran
- Institute of Applied Sciences, Ho Chi Minh City University of Technology (HUTECH), Ho Chi Minh City, Vietnam
| | - Jirapast Sichaem
- Research Unit in Natural Products Chemistry and Bioactivities, Faculty of Science and Technology, Thammasat University, Lampang, Thailand
| |
Collapse
|
2
|
Silva MFS, Silva LMA, Quintela AL, Dos Santos AG, Silva FAN, de Oliveira FDCE, Alves Filho EG, de Brito ES, Canuto KM, Pessoa C, Zocolo GJ. UPLC-HRMS and NMR applied in the evaluation of solid-phase extraction methods as a rational strategy of dereplication of Phyllanthus spp. aiming at the discovery of cytotoxic metabolites. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1120:51-61. [PMID: 31071579 DOI: 10.1016/j.jchromb.2019.04.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 04/10/2019] [Accepted: 04/14/2019] [Indexed: 02/07/2023]
Abstract
The classical approach to drug discovery from natural products (NP's) requires strenuous and complex purification steps for the isolation and structural elucidation. Modern strategies as dereplication aim to accelerate the identification of known compounds present in a crude or partially purified extract. In this work, we investigated the influence of the solid-phase extraction (Oasis, Plexa, and Agilent C18 cartridges with and without organic modifiers) chemical profile obtained by UPLC-QTOF-MS and NMR and cytotoxicities of aqueous extracts from Phyllanthus niruri and P. amarus. Our results showed differences between the SPE cartridges and the mass recovered. P. niruri showed higher mass recovery than P. amarus indicating a higher amount of secondary metabolites. The UPLC-QTOF-MS analysis revealed that P. niruri crude extract presents higher contents of phenolic compounds than P. amarus. According to NMR analysis, P. niruri contained more tyrosine, corilagin, and glycosidic residues while P. amarus, presented higher content of ellagic acid. The different stationary phases, as well as mobile phases for exploratory SPE, enabled the exploitation of the different chemical functionalities within the Phyllanthus species. The SPE (MeOH:H2O 70:30 with C18 cartridges) samples showed greater in vitro cytotoxicity than the crude extracts, with IC50 ranging from 8.01 to 94.92 μg mL-1 against the tumor lines tested. The solid phase extraction allowed the concentration of molecules with desirable physicochemical characteristics, which might increase the hit of therapeutically useful substances.
Collapse
Affiliation(s)
- Maria Francilene Souza Silva
- Federal University of Ceará, Núcleo de Pesquisa e Desenvolvimento de Medicamentos-NPDM, Rua Coronel Nunes de Mello 1000, CEP 60420-275 Fortaleza, CE, Brazil
| | - Lorena Mara A Silva
- Embrapa Agroindústria Tropical, Rua Doutora Sara Mesquita, 2270 - Pici, CEP 60511-110 Fortaleza, CE, Brazil
| | - Amanda Lemos Quintela
- Federal University of Ceará, Dept. of Analytical and Physical-Chemical Chemistry, Science Center, Campus Pici, Fortaleza, CE CEP 60455-760, Brazil
| | - André Gonzaga Dos Santos
- São Paulo State University (Unesp), School of Pharmaceutical Sciences, Araraquara, Department of Natural Principles and Toxicology, Rodovia Araraquara-Jaú, Km 01, 14800-903 Araraquara, São Paulo, Brazil
| | - Francisca Aliny Nunes Silva
- Federal University of Ceará, Núcleo de Pesquisa e Desenvolvimento de Medicamentos-NPDM, Rua Coronel Nunes de Mello 1000, CEP 60420-275 Fortaleza, CE, Brazil
| | - Fátima de Cássia E de Oliveira
- Federal University of Ceará, Núcleo de Pesquisa e Desenvolvimento de Medicamentos-NPDM, Rua Coronel Nunes de Mello 1000, CEP 60420-275 Fortaleza, CE, Brazil
| | - Elenilson Godoy Alves Filho
- Federal University of Ceará, Núcleo de Pesquisa e Desenvolvimento de Medicamentos-NPDM, Rua Coronel Nunes de Mello 1000, CEP 60420-275 Fortaleza, CE, Brazil
| | - Edy Sousa de Brito
- Embrapa Agroindústria Tropical, Rua Doutora Sara Mesquita, 2270 - Pici, CEP 60511-110 Fortaleza, CE, Brazil
| | - Kirley Marques Canuto
- Embrapa Agroindústria Tropical, Rua Doutora Sara Mesquita, 2270 - Pici, CEP 60511-110 Fortaleza, CE, Brazil
| | - Claudia Pessoa
- Federal University of Ceará, Núcleo de Pesquisa e Desenvolvimento de Medicamentos-NPDM, Rua Coronel Nunes de Mello 1000, CEP 60420-275 Fortaleza, CE, Brazil
| | - Guilherme Julião Zocolo
- Embrapa Agroindústria Tropical, Rua Doutora Sara Mesquita, 2270 - Pici, CEP 60511-110 Fortaleza, CE, Brazil.
| |
Collapse
|
3
|
Parrilla J, Gaillard C, Verbeke J, Maucourt M, Aleksandrov RA, Thibault F, Fleurat-Lessard P, Gibon Y, Rolin D, Atanassova R. Comparative metabolomics and glycolysis enzyme profiling of embryogenic and nonembryogenic grape cells. FEBS Open Bio 2018; 8:784-798. [PMID: 29744293 PMCID: PMC5929931 DOI: 10.1002/2211-5463.12415] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 03/06/2018] [Accepted: 03/07/2018] [Indexed: 11/06/2022] Open
Abstract
A novel biological model was created for the comparison of grapevine embryogenic cells (EC) and nonembryogenic cells (NEC) sharing a common genetic background but distinct phenotypes, when cultured on their respective most appropriate media. Cytological characterization, 1H-NMR analysis of intracellular metabolites, and glycolytic enzyme activities provided evidence for the marked metabolic differences between EC and NEC. The EC were characterized by a moderate and organized cell proliferation, coupled with a low flux through glycolysis, high capacity of phosphoenolpyruvate carboxylase and glucokinase, and high oxygen consumption. The NEC displayed strong anarchic growth, and their high rate of glycolysis due to the low energetic efficiency of the fermentative metabolism is confirmed by increased enolase capacity and low oxygen consumption.
Collapse
Affiliation(s)
- Jonathan Parrilla
- Laboratoire EBI- Ecologie et Biologie des Interactions Équipe SEVE-Sucres et Échanges Végétaux-Environnement UMR 7267 Centre National de la Recherche Scientifique Université de Poitiers France
| | - Cécile Gaillard
- Laboratoire EBI- Ecologie et Biologie des Interactions Équipe SEVE-Sucres et Échanges Végétaux-Environnement UMR 7267 Centre National de la Recherche Scientifique Université de Poitiers France
| | - Jérémy Verbeke
- Laboratoire EBI- Ecologie et Biologie des Interactions Équipe SEVE-Sucres et Échanges Végétaux-Environnement UMR 7267 Centre National de la Recherche Scientifique Université de Poitiers France.,GReD. UMR CNRS 6293 - INSERM U1103 Université Clermont-Auvergne CRBC Faculté de médecine Clermont-Ferrand France
| | - Mickaël Maucourt
- Laboratoire Biologie du Fruit et Pathologie UMR 1332 Institut National de la Recherche Agronomique Université de Bordeaux Villenave d'Ornon France.,Plateforme Métabolome du Centre de Génomique Fonctionnelle Bordeaux MetaboHUB Institut National de la Recherche Agronomique Villenave d'Ornon France
| | - Radoslav A Aleksandrov
- Laboratoire EBI- Ecologie et Biologie des Interactions Équipe SEVE-Sucres et Échanges Végétaux-Environnement UMR 7267 Centre National de la Recherche Scientifique Université de Poitiers France.,Institute of Molecular Biology Bulgarian Academy of Sciences Acad Sofia Bulgaria
| | - Florence Thibault
- Laboratoire EBI- Ecologie et Biologie des Interactions Équipe SEVE-Sucres et Échanges Végétaux-Environnement UMR 7267 Centre National de la Recherche Scientifique Université de Poitiers France
| | - Pierrette Fleurat-Lessard
- Laboratoire EBI- Ecologie et Biologie des Interactions Équipe SEVE-Sucres et Échanges Végétaux-Environnement UMR 7267 Centre National de la Recherche Scientifique Université de Poitiers France
| | - Yves Gibon
- Laboratoire Biologie du Fruit et Pathologie UMR 1332 Institut National de la Recherche Agronomique Université de Bordeaux Villenave d'Ornon France.,Plateforme Métabolome du Centre de Génomique Fonctionnelle Bordeaux MetaboHUB Institut National de la Recherche Agronomique Villenave d'Ornon France
| | - Dominique Rolin
- Laboratoire Biologie du Fruit et Pathologie UMR 1332 Institut National de la Recherche Agronomique Université de Bordeaux Villenave d'Ornon France.,Plateforme Métabolome du Centre de Génomique Fonctionnelle Bordeaux MetaboHUB Institut National de la Recherche Agronomique Villenave d'Ornon France
| | - Rossitza Atanassova
- Laboratoire EBI- Ecologie et Biologie des Interactions Équipe SEVE-Sucres et Échanges Végétaux-Environnement UMR 7267 Centre National de la Recherche Scientifique Université de Poitiers France
| |
Collapse
|
4
|
Navarro M, Moreira I, Arnaez E, Quesada S, Azofeifa G, Vargas F, Alvarado D, Chen P. Flavonoids and Ellagitannins Characterization, Antioxidant and Cytotoxic Activities of Phyllanthus acuminatus Vahl. PLANTS (BASEL, SWITZERLAND) 2017; 6:E62. [PMID: 29244711 PMCID: PMC5750638 DOI: 10.3390/plants6040062] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 12/07/2017] [Accepted: 12/08/2017] [Indexed: 12/23/2022]
Abstract
The phenolic composition of leaves from Phyllanthus acuminatus L., a plant commonly used in Costa Rica as traditional medicine, was studied using UPLC-ESI-MS on an enriched phenolic extract. A total of 20 phenolic compounds were identified, comprising eight flavonoids (two flavanones-pinocembrin isomers and six derivatives from apigenin, chrysin, quercetin, and kaempferol); seven ellagitannins, two flavan-3-ols (prodelphinidin B dimer and (epi)gallocatechin); and three phenolic acids (ellagic acid, trimethylellagic acid, and ferulic acid). All of these compounds are reported for the first time in P. acuminatus, while previously reported in the genus Phyllanthus. Antioxidant evaluation was performed for P. acuminatus phenolic extract obtaining DPPH results with a remarkably low IC50 value of 0.15 μg/mL. Also, cytotoxicity on gastric AGS and colon SW20 adenocarcinoma cell lines was evaluated, and highly promising results were obtained, with IC50 values of 11.3 μg/mL and 10.5 μg/mL, respectively. Furthermore, selectivity index values obtained when comparing cytotoxicity on normal Vero cells was SI > 20 for both cancer cell lines, indicating a particularly high selectivity. Additionally, Justicidin B, a metabolite extensively studied for its antitumoral activity, was isolated from a non-polar extract of P. acuminatus, and comparatively evaluated for both bioactivities. The DPPH value obtained for Justicidin B was moderate (IC50 = 14.28 μg/mL), while cytotoxicity values for both AGS (IC50 = 19.5 μg/mL) and SW620 (IC50 = 24.8 μg/mL) cell lines, as well as selectivity when compared with normal Vero cells (SI = 5.4 and 4.2 respectively), was good, but lower than P. acuminatus extract. These preliminary results suggest that P. acuminatus enriched phenolic extract containing flavonoids, ellagitannins, flavan-3-ols, and phenolic acids, reported for the first time in this plant, could be of interest for further cancer cytotoxicity studies to elucidate structure-bioactivity relationships, and the molecular mechanisms and pathways.
Collapse
Affiliation(s)
- Mirtha Navarro
- Department of Chemistry, University of Costa Rica (UCR), Rodrigo Facio Campus, San Pedro Montes Oca, San Jose 2060, Costa Rica.
| | - Ileana Moreira
- Department of Biology, Technological University of Costa Rica (TEC), Cartago 7050, Costa Rica.
| | - Elizabeth Arnaez
- Department of Biology, Technological University of Costa Rica (TEC), Cartago 7050, Costa Rica.
| | - Silvia Quesada
- Department of Biochemistry, School of Medicine, University of Costa Rica (UCR), Rodrigo Facio Campus, San Pedro Montes Oca, San Jose 2060, Costa Rica.
| | - Gabriela Azofeifa
- Department of Biochemistry, School of Medicine, University of Costa Rica (UCR), Rodrigo Facio Campus, San Pedro Montes Oca, San Jose 2060, Costa Rica.
| | - Felipe Vargas
- Department of Chemistry, University of Costa Rica (UCR), Rodrigo Facio Campus, San Pedro Montes Oca, San Jose 2060, Costa Rica.
| | - Diego Alvarado
- Department of Biology, University of Costa Rica (UCR), Rodrigo Facio Campus, San Pedro Montes Oca, San Jose 2060, Costa Rica.
| | - Pei Chen
- Food Composition and Methods Development Laboratory, Department of Agriculture, Beltsville Human Nutrition Research Center, Agricultural Research Service, Beltsville, MD 20705, USA.
| |
Collapse
|
5
|
Navarro M, Moreira I, Arnaez E, Quesada S, Azofeifa G, Alvarado D, Monagas MJ. Proanthocyanidin Characterization, Antioxidant and Cytotoxic Activities of Three Plants Commonly Used in Traditional Medicine in Costa Rica: Petiveria alliaceae L., Phyllanthus niruri L. and Senna reticulata Willd. PLANTS 2017; 6:plants6040050. [PMID: 29048336 PMCID: PMC5750626 DOI: 10.3390/plants6040050] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 10/10/2017] [Accepted: 10/15/2017] [Indexed: 12/16/2022]
Abstract
The phenolic composition of aerial parts from Petiveria alliaceae L., Phyllanthus niruri L. and Senna reticulata Willd., species commonly used in Costa Rica as traditional medicines, was studied using UPLC-ESI-TQ-MS on enriched-phenolic extracts. Comparatively, higher values of total phenolic content (TPC), as measured by the Folin-Ciocalteau method, were observed for P. niruri extracts (328.8 gallic acid equivalents/g) than for S. reticulata (79.30 gallic acid equivalents/g) whereas P. alliaceae extract showed the lowest value (13.45 gallic acid equivalents/g). A total of 20 phenolic acids and proanthocyanidins were identified in the extracts, including hydroxybenzoic acids (benzoic, 4-hydroxybenzoic, gallic, prochatechuic, salicylic, syringic and vanillic acids); hydroxycinnamic acids (caffeic, ferulic, and p-coumaric acids); and flavan-3-ols monomers [(+)-catechin and (−)-epicatechin)]. Regarding proanthocyanidin oligomers, five procyanidin dimers (B1, B2, B3, B4, and B5) and one trimer (T2) are reported for the first time in P. niruri, as well as two propelargonidin dimers in S. reticulata. Additionally, P. niruri showed the highest antioxidant DPPH and ORAC values (IC50 of 6.4 μg/mL and 6.5 mmol TE/g respectively), followed by S. reticulata (IC50 of 72.9 μg/mL and 2.68 mmol TE/g respectively) and P. alliaceae extract (IC50 >1000 μg/mL and 1.32 mmol TE/g respectively). Finally, cytotoxicity and selectivity on gastric AGS and colon SW20 adenocarcinoma cell lines were evaluated and the best values were also found for P. niruri (SI = 2.8), followed by S. reticulata (SI = 2.5). Therefore, these results suggest that extracts containing higher proanthocyanidin content also show higher bioactivities. Significant positive correlation was found between TPC and ORAC (R2 = 0.996) as well as between phenolic content as measured by UPLC-DAD and ORAC (R2 = 0.990). These findings show evidence for the first time of the diversity of phenolic acids in P. alliaceae and S. reticulata, and the presence of proanthocyanidins as minor components in latter species. Of particular relevance is the occurrence of proanthocyanidin oligomers in phenolic extracts from P. niruri and their potential bioactivity.
Collapse
Affiliation(s)
- Mirtha Navarro
- Department of Chemistry, University of Costa Rica (UCR), Rodrigo Facio Campus, San Pedro Montes Oca, San Jose 2060, Costa Rica.
| | - Ileana Moreira
- Department of Biology, Technological University of Costa Rica (TEC), Cartago 7050, Costa Rica.
| | - Elizabeth Arnaez
- Department of Biology, Technological University of Costa Rica (TEC), Cartago 7050, Costa Rica.
| | - Silvia Quesada
- Department of Biochemistry, School of Medicine, University of Costa Rica (UCR), Rodrigo Facio Campus, San Pedro Montes Oca, San Jose 2060, Costa Rica.
| | - Gabriela Azofeifa
- Department of Biochemistry, School of Medicine, University of Costa Rica (UCR), Rodrigo Facio Campus, San Pedro Montes Oca, San Jose 2060, Costa Rica.
| | - Diego Alvarado
- Department of Biology, University of Costa Rica (UCR), Rodrigo Facio Campus, San Pedro Montes Oca, San Jose 2060, Costa Rica.
| | - Maria J Monagas
- Institute of Food Science Research (CIAL), Spanish National Research Council (CSIC-UAM), C/Nicolas Cabrera 9, 28049 Madrid, Spain.
| |
Collapse
|
6
|
Physicochemical Properties, Antioxidant and Cytotoxic Activities of Crude Extracts and Fractions from Phyllanthus amarus. MEDICINES 2017; 4:medicines4020042. [PMID: 28930257 PMCID: PMC5590078 DOI: 10.3390/medicines4020042] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 06/11/2017] [Accepted: 06/15/2017] [Indexed: 12/13/2022]
Abstract
Background:Phyllanthus amarus (P. amarus) has been used as a medicinal plant for the prevention and treatment of chronic ailments such as diabetes, hepatitis, and cancer. Methods: The physicochemical properties, antioxidant and cytotoxic activities of crude extracts and fractions from P. amarus were determined using spectrophotometric method. Results: The P. amarus methanol (PAM) extract had lower levels of residual moisture (7.40%) and water activity (0.24) and higher contents of saponins, phenolics, flavonoids, and proanthocyanidins (1657.86 mg escin equivalents, 250.45 mg gallic acid equivalents, 274.73 mg rutin equivalents and 61.22 mg catechin equivalents per g dried extract, respectively) than those of the P. amarus water (PAW) extract. The antioxidant activity of PAM extract was significantly higher (p < 0.05) than that of the PAW extract, PAM fractions, and phyllanthin (known as a major compound in the P. amarus). Higher cytotoxic activity of PAM extract based on MTT assay on different cell lines including MiaPaCa-2 (pancreas), HT29 (colon), A2780 (ovarian), H460 (lung), A431 (skin), Du145 (prostate), BE2-C (neuroblastoma), MCF-7 (breast), MCF-10A (normal breast), and U87, SJ-G2, SMA (glioblastoma) was observed in comparison to the PAW extract and PAM fractions. The cytotoxic potential of the PAW extract (200 μg/mL), based on the CCK-8 assay on a pancreatic cancer cell line (MiaCaPa2) was significantly lower (p < 0.05) than those of gemcitabine (50 nM) and a saponin-enriched extract from quillajia bark at 200 μg/mL (a commercial product), but was significantly higher than that of phyllanthin at 2 μg/mL. Conclusions: The results achieved from this study reveal that the PA extracts are a potential source for the development of natural antioxidant products and/or novel anticancer drugs.
Collapse
|
7
|
Mao X, Wu LF, Guo HL, Chen WJ, Cui YP, Qi Q, Li S, Liang WY, Yang GH, Shao YY, Zhu D, She GM, You Y, Zhang LZ. The Genus Phyllanthus: An Ethnopharmacological, Phytochemical, and Pharmacological Review. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2016; 2016:7584952. [PMID: 27200104 PMCID: PMC4854999 DOI: 10.1155/2016/7584952] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 03/23/2016] [Accepted: 03/30/2016] [Indexed: 12/17/2022]
Abstract
The plants of the genus Phyllanthus (Euphorbiaceae) have been used as traditional medicinal materials for a long time in China, India, Brazil, and the Southeast Asian countries. They can be used for the treatment of digestive disease, jaundice, and renal calculus. This review discusses the ethnopharmacological, phytochemical, and pharmacological studies of Phyllanthus over the past few decades. More than 510 compounds have been isolated, the majority of which are lignins, triterpenoids, flavonoids, and tannins. The researches of their remarkable antiviral, antioxidant, antidiabetic, and anticancer activities have become hot topics. More pharmacological screenings and phytochemical investigations are required to support the traditional uses and develop leading compounds.
Collapse
Affiliation(s)
- Xin Mao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Ling-Fang Wu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Hong-Ling Guo
- Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Wen-Jing Chen
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Ya-Ping Cui
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Qi Qi
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Shi Li
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Wen-Yi Liang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Guang-Hui Yang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Yan-Yan Shao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Dan Zhu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Gai-Mei She
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Yun You
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
- Key laboratory of Chinese Internal Medicine, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Lan-Zhen Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| |
Collapse
|
8
|
An overview of important ethnomedicinal herbs of Phyllanthus species: present status and future prospects. ScientificWorldJournal 2014; 2014:839172. [PMID: 24672382 PMCID: PMC3932249 DOI: 10.1155/2014/839172] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Accepted: 10/30/2013] [Indexed: 01/23/2023] Open
Abstract
The genus Phyllanthus consists of more than 1000 species, of which many are used as traditional medicines. The plant extracts have been used since ancient times, for treating hypertension, diabetes, hepatic, urinary, and sexual disorders, and other common ailments. Modern day scientific investigations have now confirmed pharmacognostic properties of Phyllanthus herbs. The phytochemicals attributing these medicinal properties have been identified in many of the Phyllanthus herbs. The morphologically similar herbs of Phyllanthus grow together and admixture of species during collection for manufacture of herbal medicines is quite common. Hence, along with pharmacognostic and phytochemical studies, appropriate protocols for correct identification of species are also important. As the use of these herbs as green medicines is becoming more popular, it is imperative to assess its genetic diversity and phylogenetic relatedness for future conservation strategies. This review is an attempt to present an overview of the existing studies on pharmacognostics, phytochemistry, species identification, and genetic diversity of Phyllanthus herbs and consequently (i) highlight areas where further research is needed and (ii) draw attention towards extending similar studies in underutilized but potentially important herbs such as P. maderaspatensis, P. kozhikodianus, P. rheedii, P. scabrifolius, and P. rotundifolius.
Collapse
|
9
|
Antioxidant and α -amylase inhibitory property of phyllanthus virgatus L.: an in vitro and molecular interaction study. BIOMED RESEARCH INTERNATIONAL 2013; 2013:729393. [PMID: 23957001 PMCID: PMC3703720 DOI: 10.1155/2013/729393] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2013] [Accepted: 05/28/2013] [Indexed: 12/14/2022]
Abstract
The present study on Phyllanthus virgatus, known traditionally for its remedial potential, for the first time provides descriptions of the antioxidant and inhibition of α-amylase enzyme activity first by in vitro analyses, followed by a confirmatory in silico study to create a stronger biochemical rationale. Our results illustrated that P. virgatus methanol extract exhibited strong antioxidant and oxidative DNA damage protective activity than other extracts, which was well correlated with its total phenolic content. In addition, P. virgatus methanol extract strongly inhibited the α-amylase activity (IC50 33.20 ± 0.556 μg/mL), in a noncompetitive manner, than acarbose (IC50 76.88 ± 0.277 μg/mL), which showed competitive inhibition. Moreover, this extract stimulated the glucose uptake activity in 3T3-L1 cells and also showed a good correlation between antioxidant and α-amylase activities. The molecular docking studies of the major bioactive compounds (9,12-octadecadienoic acid, asarone, 11-octadecenoic acid, and acrylic acid) revealed via GC-MS analysis from this extract mechanistically suggested that the inhibitory property may be due to the synergistic effect of these bioactive compounds. These results provide substantial basis for the future use of P. virgatus methanol extract and its bioactive compound in in vivo system for the treatment and management of diabetes as well as in the related condition of oxidative stress.
Collapse
|
10
|
Hamid RA, Othman F, Anthony JJ, Ting YL. Chemopreventive effect of Ardisia crispa hexane fraction on the peri-initiation phase of mouse skin tumorigenesis. Med Princ Pract 2013; 22:357-61. [PMID: 23391778 PMCID: PMC5586746 DOI: 10.1159/000346622] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Accepted: 12/13/2012] [Indexed: 12/05/2022] Open
Abstract
OBJECTIVE To investigate the chemopreventive effect of the hexane extract of Ardisia crispa during the peri-initiation phase of mouse skin tumorigenesis. MATERIALS AND METHODS This study was conducted for 12 weeks on two-stage 7,12-dimethylbenz(α)-anthracene (DMBA)-induced tumor initiation followed by croton-oil-induced tumor promotion in mice. A. crispa root hexane extract (ACRH) was applied at various doses (30, 100, 300 mg/kg) 7 days prior to and after DMBA treatment. Throughout the study, morphological observations, i.e., tumor incidence, tumor volume and tumor burden were measured for each of the treated groups. At the end of the experiment, the mice were sacrificed and their skin tissues were examined histopathologically. RESULTS The highest dose of ACRH (300 mg/kg) significantly delayed tumor formation (week 9, p < 0.05) and exhibited the lowest tumor volume (0.71 ± 0.00 mm(3), p < 0.05), tumor burden (2.00 ± 0.00, p < 0.05), and tumor incidence (16.67%, p < 0.05) compared to other doses of ACRH. A 100-mg/kg dose produced tumor latency at week 7, tumor volume of 2.44 ± 0.88 mm(3) (p < 0.05), tumor burden of 1.60 ± 0.60 (p < 0.05), and tumor incidence of 50%; 30 mg/kg produced tumor latency at week 8, tumor volume of 2.04 ± 0.45 mm(3) (p < 0.05), tumor burden of 2.17 ± 0.54, tumor incidence of 60% and carcinogen control (tumor latency at week 7; tumor volume, 3.56 mm(3); tumor incidence of 66.67%). CONCLUSION The highest dose of A. crispa hexane extract delayed tumor development, thus showing a chemopreventive effect on mouse skin tumorigenesis.
Collapse
Affiliation(s)
- Roslida Abdul Hamid
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University Putra Malaysia, Selangor, Malaysia.
| | | | | | | |
Collapse
|
11
|
Herbal products: benefits, limits, and applications in chronic liver disease. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 2012:837939. [PMID: 22991573 PMCID: PMC3443820 DOI: 10.1155/2012/837939] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Accepted: 07/30/2012] [Indexed: 12/14/2022]
Abstract
Complementary and alternative medicine soughts and encompasses a wide range of approaches; its use begun in ancient China at the time of Xia dynasty and in India during the Vedic period, but thanks to its long-lasting curative effect, easy availability, natural way of healing, and poor side-effects it is gaining importance throughout the world in clinical practice. We conducted a review describing the effects and the limits of using herbal products in chronic liver disease, focusing our attention on those most known, such as quercetin or curcumin. We tried to describe their pharmacokinetics, biological properties, and their beneficial effects (as antioxidant role) in metabolic, alcoholic, and viral hepatitis (considering that oxidative stress is the common pathway of chronic liver diseases of different etiology). The main limit of applicability of CAM comes from the lacking of randomized, placebo-controlled clinical trials giving a real proof of efficacy of those products, so that anecdotal success and personal experience are frequently the driving force for acceptance of CAM in the population.
Collapse
|