1
|
da Rocha MN, da Fonseca AM, Dantas ANM, Dos Santos HS, Marinho ES, Marinho GS. In Silico Study in MPO and Molecular Docking of the Synthetic Drynaran Analogues Against the Chronic Tinnitus: Modulation of the M1 Muscarinic Acetylcholine Receptor. Mol Biotechnol 2024; 66:254-269. [PMID: 37079267 DOI: 10.1007/s12033-023-00748-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 04/03/2023] [Indexed: 04/21/2023]
Abstract
Tinnitus is a syndrome that affects the human auditory system and is characterized by a perception of sounds in the absence of acoustic stimuli, or in total silence. Research indicates that muscarinic acetylcholine receptors (mAChRs), especially the M1 type, have a fundamental role in the alterations of auditory perceptions of tinnitus. Here, a series of computer-aided tools were used, from molecular surface analysis software to services available on the web for estimating pharmacokinetics and pharmacodynamics. The results infer that the low lipophilicity ligands, that is, the 1a-d alkyl furans, present the best pharmacokinetic profile, as compounds with an optimal alignment between permeability and clearance. However, only ligands 1a and 1b have properties that are safe for the central nervous system, the site of cholinergic modulation. These ligands showed similarity with compounds deposited in the European Molecular Biology Laboratory chemical (ChEMBL) database acting on the mAChRs M1 type, the target selected for the molecular docking test. The simulations suggest that the 1 g ligand can form the ligand-receptor complex with the best affinity energy order and that, together with the 1b ligand, they are competitive agonists in relation to the antagonist Tiotropium, in addition to acting in synergism with the drug Bromazepam in the treatment of chronic tinnitus.
Collapse
Affiliation(s)
- Matheus Nunes da Rocha
- Graduate Program in Natural Sciences, Center for Science and Technology, State University of Ceará, Fortaleza, CE, Brazil.
| | - Aluísio Marques da Fonseca
- Institute of Engineering and Sustainable Development, Academic Master in Sociobiodiversity and Sustainable Technologies, University of International Integration of Afro-Brazilian Lusofonia, Acarape, CE, Brazil
| | | | | | - Emmanuel Silva Marinho
- Graduate Program in Natural Sciences, Center for Science and Technology, State University of Ceará, Fortaleza, CE, Brazil
- Group of Theoretical Chemistry and Electrochemistry, State University of Ceará, Limoeiro Do Norte, CE, Brazil
| | - Gabrielle Silva Marinho
- Group of Theoretical Chemistry and Electrochemistry, State University of Ceará, Limoeiro Do Norte, CE, Brazil
| |
Collapse
|
2
|
Synthesis of drynaran and analogues. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
3
|
Ren Y, Elkington BG, Henkin JM, Sydara K, Kinghorn AD, Soejarto DD. Bioactive small-molecule constituents of Lao plants. JOURNAL OF MEDICINAL PLANT RESEARCH 2021; 15:540-559. [PMID: 35178192 PMCID: PMC8849567 DOI: 10.5897/jmpr2021.7137] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Laos has a rich plant diversity, and medicinal plants are used extensively in Lao traditional medicine for the treatment of a variety of human diseases. However, only a relatively small number of these plants have been investigated for their major components with potential antitumor, anti-infective, and other types of bioactivities. These species include Asparagus cochinchinensis, Diospyros quaesita, Gongronema napalense, Marsypopetalum modestum, Nauclea orientalis, Rourea minor, Stemona pierrei, and Stemona tuberosa. Thus far, the bioactive compounds isolated from these Lao plants include alkaloids, glycerol esters, phenolic compounds such as lignans and stilbenoids, steroids, and triterpenoids. Of these, the norlignan, nyasol (1b), the triterpenes, pyracrenic acid [3β-O-trans-caffeoylbetulinic acid (3)] and betulinic acid (3b), and the dimeric thiopyridine, dipyrithione (5), were found to show both cancer cell cytotoxicity and anti-infective activity. The present review focuses on examples of promising lead compounds isolated from Lao plants, with their possible development as potential therapeutic agents being discussed. It is hoped that this contribution will provide useful information on higher plants growing in Laos to help stimulate future discoveries of potential agents for the treatment of cancer, infections, and other diseases.
Collapse
Affiliation(s)
- Yulin Ren
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States
| | - Bethany G. Elkington
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, United States
- Science and Education, Field Museum, Chicago, IL 60605, United States
| | - Joshua M. Henkin
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, United States
- Science and Education, Field Museum, Chicago, IL 60605, United States
| | - Kongmany Sydara
- Institute of Traditional Medicine, Ministry of Health, Vientiane, Lao PDR
| | - A. Douglas Kinghorn
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States
| | - Djaja D. Soejarto
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, United States
- Science and Education, Field Museum, Chicago, IL 60605, United States
| |
Collapse
|
4
|
Traditional Medicinal Plants as a Source of Antituberculosis Drugs: A System Review. BIOMED RESEARCH INTERNATIONAL 2021; 2021:9910365. [PMID: 34541000 PMCID: PMC8448615 DOI: 10.1155/2021/9910365] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 08/09/2021] [Indexed: 12/02/2022]
Abstract
Medicinal plants are the chief components in the different oriental formulations in different traditional medical systems worldwide. As a thriving source of medicine, the medicinal plants with antituberculosis (TB) properties inspire the pharmacists to develop new drugs based on their active components or semimetabolites. In the present review, the anti-TB medicinal plants were screened from the scientific literatures, based on the botanical classification and the anti-TB activity. The obtained anti-TB medicinal plants were categorized into three different categories, viz., 159 plants critically examined with a total 335 isolated compounds, 131 plants with their crude extracts showing anti-TB activity, and 27 plants in literature with the prescribed formula by the traditional healers. Our systemic analysis on the medicinal plants can assist the discovery of novel and more efficacious anti-TB drugs.
Collapse
|
5
|
Brown AR, Ettefagh KA, Todd DA, Cole PS, Egan JM, Foil DH, Lacey EP, Cech NB. Bacterial efflux inhibitors are widely distributed in land plants. JOURNAL OF ETHNOPHARMACOLOGY 2021; 267:113533. [PMID: 33137433 DOI: 10.1016/j.jep.2020.113533] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 10/12/2020] [Accepted: 10/28/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Secondary metabolites play a critical role in plant defense against disease and are of great importance to ethnomedicine. Bacterial efflux pumps are active transport proteins that bacterial cells use to protect themselves against multiple toxic compounds, including many antimicrobials. Efflux pump inhibitors from plants can block these efflux pumps, increasing the potency of antimicrobial compounds. This study demonstrates that efflux pump inhibition against the Gram-positive bacterial pathogen Staphylococcus aureus is widespread in extracts prepared from individual species throughout the land plant lineage. It therefore suggests a general mechanism by which plants used by indigenous species may be effective as a topical treatment for some bacterial infections. AIM OF THE STUDY The goal of this research was to evaluate the distribution of efflux pump inhibitors in nine plant extracts with an ethnobotanical use suggestive of an antimicrobial function for the presence of efflux pump inhibitory activity against Staphylococcus aureus. MATERIALS AND METHODS Plants were collected, dried, extracted, and vouchers submitted to the Herbarium of the University of North Carolina Chapel Hill (NCU). The extracts were analyzed by quantitative mass spectrometry (UPLC-MS) to determine the presence and concentration of flavonoids with known efflux pump inhibitory activity. A mass spectrometry-based assay was employed to measure efflux pump inhibition for all extracts against Staphylococcus aureus. The assay relies on UPLC-MS measurement of changes in ethidium concentration in the spent culture broth when extracts are incubated with bacteria. RESULTS Eight of these nine plant extracts inhibited toxic compound efflux at concentrations below the MIC (minimum inhibitory concentration) value for the same extract. The most active extracts were those prepared from Osmunda claytoniana L. and Pinus strobes L., which both demonstrated IC50 values for efflux inhibition of 19 ppm. CONCLUSIONS Our findings indicate that efflux pump inhibitors active against Staphylococcus aureus are common in land plants. By extension, this activity is likely to be important in many plant-derived antimicrobial extracts, including those used in traditional medicine, and evaluation of efflux pump inhibition may often be valuable when studying natural product efficacy.
Collapse
Affiliation(s)
- Adam R Brown
- Department of Chemistry/Biochemistry, The University of North Carolina Greensboro, 435 Sullivan Bldg., Greensboro, NC, 27402, USA.
| | - Keivan A Ettefagh
- Department of Chemistry/Biochemistry, The University of North Carolina Greensboro, 435 Sullivan Bldg., Greensboro, NC, 27402, USA.
| | - Daniel A Todd
- Department of Chemistry/Biochemistry, The University of North Carolina Greensboro, 435 Sullivan Bldg., Greensboro, NC, 27402, USA.
| | - Patrick S Cole
- Department of Chemistry/Biochemistry, The University of North Carolina Greensboro, 435 Sullivan Bldg., Greensboro, NC, 27402, USA.
| | - Joseph M Egan
- Department of Chemistry/Biochemistry, The University of North Carolina Greensboro, 435 Sullivan Bldg., Greensboro, NC, 27402, USA.
| | - Daniel H Foil
- Department of Chemistry/Biochemistry, The University of North Carolina Greensboro, 435 Sullivan Bldg., Greensboro, NC, 27402, USA.
| | - Elizabeth P Lacey
- Department of Biology, The University of North Carolina Greensboro, 312 Eberhart Building, Greensboro, NC, 27402, USA.
| | - Nadja B Cech
- Department of Chemistry/Biochemistry, The University of North Carolina Greensboro, 435 Sullivan Bldg., Greensboro, NC, 27402, USA.
| |
Collapse
|
6
|
Henkin JM, Sydara K, Xayvue M, Souliya O, Kinghorn AD, Burdette JE, Chen WL, Elkington BG, Soejarto DD. Revisiting the linkage between ethnomedical use and development of new medicines: A novel plant collection strategy towards the discovery of anticancer agents. ACTA ACUST UNITED AC 2017; 11:621-634. [PMID: 29152156 DOI: 10.5897/jmpr2017.6485] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The Vietnam-Laos International Cooperative Biodiversity Group (ICBG) based at the University of Illinois at Chicago (UIC) catalyzed a country-wide network of medicinal plant preserves (MPP) and medicinal biodiversity preserves (MBP) now established in ten provinces of the Lao People's Democratic Republic (Lao PDR), which are relied upon as protected sources of ethnomedicines for local villagers and traditional healers. In collaboration with the Lao PDR's Institute of Traditional Medicine (ITM), our ongoing P01 Program Project (Ohio State University) examined the anticancer bioprospecting potential for two of the most exhaustively inventoried of these sites: the Bolikhamxay MPP and the Xiengkhouang MBP. Guided by prior voucher specimens sourced from these preserves with an overwhelming emphasis on plants employed in traditional medicine, 201 distinct samples from 96 species were collected along with proper herbarium documentation. Aliquots of these plant samples were extracted in azeotropic ethanol and evaporated to dryness for initial biological evaluation. In six samples from six different species (2.99% of the collected samples, 6.25% of taxa) it was observed that extracts exhibited notable cytotoxicity against HT-29 colon adenocarcinoma cells. The wisdom behind the utilization of HT-29 cells in this preliminary biological screen is discussed. Furthermore, comparison of screening results based on longstanding considerations and ideological underpinnings of ethnobotanical vs. "random" biodiversity-based collection approaches is detailed herein. The results of this interdisciplinary study support the hypothesis that, by privileging the initial sample set in terms of human safety and pharmacological activity, ethnobotanically driven collection for biological screening efforts can produce leads unprecedented by the strict traditional usages of plants.
Collapse
Affiliation(s)
- Joshua M Henkin
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, 833 S. Wood St., Chicago, Illinois 60612, USA
| | - Kongmany Sydara
- Institute of Traditional Medicine, Ministry of Health, Vientiane Capital, Lao People's Democratic Republic
| | - Mouachanh Xayvue
- Institute of Traditional Medicine, Ministry of Health, Vientiane Capital, Lao People's Democratic Republic
| | - Onevilay Souliya
- Institute of Traditional Medicine, Ministry of Health, Vientiane Capital, Lao People's Democratic Republic
| | - A Douglas Kinghorn
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Ohio State University, 500 W. 12th Ave., Columbus, OH 43210, USA
| | - Joanna E Burdette
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, 833 S. Wood St., Chicago, Illinois 60612, USA
| | - Wei-Lun Chen
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, 833 S. Wood St., Chicago, Illinois 60612, USA
| | - Bethany G Elkington
- Science and Education, Field Museum, 1400 S. Lake Shore Drive, Chicago, Illinois 60605, USA
| | - Djaja D Soejarto
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, 833 S. Wood St., Chicago, Illinois 60612, USA
| |
Collapse
|
7
|
Southeast Asian Medicinal Plants as a Potential Source of Antituberculosis Agent. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:7185649. [PMID: 29081822 PMCID: PMC5610802 DOI: 10.1155/2017/7185649] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 04/23/2017] [Accepted: 05/18/2017] [Indexed: 01/19/2023]
Abstract
Despite all of the control strategies, tuberculosis (TB) is still a major cause of death globally and one-third of the world's population is infected with TB. The drugs used for TB treatment have drawbacks of causing adverse side effects and emergence of resistance strains. Plant-derived medicines have since been used in traditional medical system for the treatment of numerous ailments worldwide. There were nine major review publications on antimycobacteria from plants in the last 17 years. However, none is focused on Southeast Asian medicinal plants. Hence, this review is aimed at highlighting the medicinal plants of Southeast Asian origin evaluated for anti-TB. This review is based on literatures published in various electronic database. A total of 132 plants species representing 45 families and 107 genera were reviewed; 27 species representing 20.5% exhibited most significant in vitro anti-TB activity (crude extracts and/or bioactive compounds 0–<10 µg/ml). The findings may motivate various scientists to undertake the project that may result in the development of crude extract that will be consumed as complementary or alternative TB drug or as potential bioactive compounds for the development of novel anti-TB drug.
Collapse
|
8
|
Chassagne F, Hul S, Deharo E, Bourdy G. Natural remedies used by Bunong people in Mondulkiri province (Northeast Cambodia) with special reference to the treatment of 11 most common ailments. JOURNAL OF ETHNOPHARMACOLOGY 2016; 191:41-70. [PMID: 27282662 DOI: 10.1016/j.jep.2016.06.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Revised: 06/01/2016] [Accepted: 06/01/2016] [Indexed: 05/22/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE In this paper we present a comprehensive ethnomedicinal study conducted in Mondulkiri province. Traditional knowledge about natural medicine (plants, animals, mushrooms) was investigated in Cambodia's largest indigenous community: the Bunong people. The survey aims to document the medicinal plant use of this ethnic, by focusing on the eleven most frequent diseases encountered in the area, in order to highlight species that could be recommended in public health programs. MATERIALS AND METHODS During the years 2013 and 2014, 202 villagers were interviewed in 28 villages from the five districts in Mondulkiri. Two types of methodology were employed: (1) an ethnobotanical field survey (walk-in-the-wood interviews) and (2) semi-structured household interviews with a special emphasis on the treatment of 11 most common ailments encountered in the area. Medicinal plants and mushrooms were collected and identified together with medicinal animals. The factor informant consensus (FIC) and fidelity level (FL) were calculated. RESULTS Bunong people use a total of 214 plants belonging to 72 families, 1 mushroom and 22 animal species in their traditional healthcare practices in order to treat 51 different ailments. Among the medicinal plants, Fabaceae was the most predominant family; Chromolaena odorata (L.) R.M. King and H.Rob. (Asteraceae), Zingiber montanum (J.Koenig) Link ex A.Dietr. (Zingiberaceae) and Kalanchoe pinnata (Lam.) Pers. (Crassulaceae) were the most cited medicinal plants; and four ailments (cold/fever, diarrhea, postpartum disorders and stomachache) were described as major ailments in the community. The root was the most important part of plants used, and decoction was the most cited method of preparation. During our survey, we also discovered a "new to science" plant species called Ardisia mondulkiriensis Hul and Chassagne, and we recorded for the second time the plant species recently described, Solanum sakhanii Hul. CONCLUSION Most of the species reported for the treatment of the 11 most frequent ailments have already been proven to be efficient and safe. Furthermore, 10 plant species are reported for the first time as medicinal and some of them are widely used in the community. Further pharmacological and phytochemical investigations should be undergone to assess the pharmaceutical potential of these species. While undergoing considerable changes, Bunong people have maintained extensive traditional medicine knowledge. As this indigenous hill tribe depend mainly on natural remedies for their daily healthcare, environmental preservation is of high importance for the community.
Collapse
Affiliation(s)
- François Chassagne
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, France; Nomad RSI Organization, Doh Kromom Village, Sokhadom Commune, Senmonorom District, Mondulkiri Province, Cambodia.
| | - Sovanmoly Hul
- Muséum National d'Histoire Naturelle (MNHN), Département de Systématique et Évolution, UMR 7205 (ISYEB), Herbier National (P), CP 39, 57 Rue Cuvier, 75231 Paris Cedex 5, France
| | - Eric Deharo
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, France
| | | |
Collapse
|
9
|
Viney K, Johnson P, Tagaro M, Fanai S, Linh NN, Kelly P, Harley D, Sleigh A. Traditional healers and the potential for collaboration with the national tuberculosis programme in Vanuatu: results from a mixed methods study. BMC Public Health 2014; 14:393. [PMID: 24758174 PMCID: PMC4011835 DOI: 10.1186/1471-2458-14-393] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Accepted: 03/29/2014] [Indexed: 11/20/2022] Open
Abstract
Background This study was conducted in the Pacific island nation of Vanuatu. Our objective was to assess knowledge, attitudes and practice of traditional healers who treat lung diseases and tuberculosis (TB), including their willingness to collaborate with the national TB programme. Methods This was a descriptive study using both qualitative and quantitative methods. Quantitative analysis was based on the responses provided to closed-ended questions, and we used descriptive analysis (frequencies) to describe the knowledge, attitudes and practice of the traditional healers towards TB. Qualitative analysis was based on open-ended questions permitting fuller explanations. We used thematic analysis and developed a posteriori inductive categories to draw original and unbiased conclusions. Results Nineteen traditional healers were interviewed; 18 were male. Fifteen of the healers reported treating short wind (a local term to describe lung, chest or breathing illnesses) which they attributed to food, alcohol, smoking or pollution from contact with menstrual blood, and a range of other physical and spiritual causes. Ten said that they would treat TB with leaf medicine. Four traditional healers said that they would not treat TB. Twelve of the healers had referred someone to a hospital for a strong wet-cough and just over half of the healers (9) reported a previous collaboration with the Government health care system. Eighteen of the traditional healers would be willing to collaborate with the national TB programme, with or without compensation. Conclusions Traditional healers in Vanuatu treat lung diseases including TB. Many have previously collaborated with the Government funded health care system, and almost all of them indicated a willingness to collaborate with the national TB programme. The engagement of traditional healers in TB management should be considered, using an evidence based and culturally sensitive approach.
Collapse
Affiliation(s)
- Kerri Viney
- Secretariat of the Pacific Community, Public Health Division, BP D5, Noumea Cedex 98848, New Caledonia.
| | | | | | | | | | | | | | | |
Collapse
|
10
|
Elkington BG, Sydara K, Newsome A, Hwang CH, Lankin DC, Simmler C, Napolitano JG, Ree R, Graham JG, Gyllenhaal C, Bouamanivong S, Souliya O, Pauli GF, Franzblau SG, Soejarto DD. New finding of an anti-TB compound in the genus Marsypopetalum (Annonaceae) from a traditional herbal remedy of Laos. JOURNAL OF ETHNOPHARMACOLOGY 2014; 151:903-911. [PMID: 24333958 PMCID: PMC3933013 DOI: 10.1016/j.jep.2013.11.057] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 11/21/2013] [Accepted: 11/30/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE There is widespread use of traditional herbal remedies in the Lao PDR (Laos). It is common practice to treat many diseases with local plants. This research project documented and analysed some of these traditional remedies used to treat symptoms of tuberculosis (TB). MATERIALS AND METHODS This research was executed by interviewing healers about plants used traditionally to treat the symptoms of TB. Samples of some of the plants were collected, and extracts of 77 species were submitted to various in vitro assays in order to determine the amount of growth inhibition of virulent Mycobacterium tuberculosis H37Rv (Mtb), as opposed to other microbes and mammalian Vero cells. RESULTS Interviews took place with 58 contemporary healers in 5 different provinces about plants currently used, giving a list of 341 plants. Bioassay-guided fractionation was performed on Marsypopetalum modestum (Pierre) B. Xue and R.M.K. Saunders (Annonaceae), leading to the isolation of dipyrithione, an anti-mycobacterial compound isolated for the first time from the genus Marsypopetalum through this research. CONCLUSIONS This research has helped to increase awareness of Laos' rich diversity of medicinal plants and will hopefully provide incentive to preserve the undeveloped forested areas that remain, which still hold a wealth of medical information for future discoveries.
Collapse
Affiliation(s)
- Bethany G Elkington
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, 833 South Wood Street, Chicago, IL 60612, USA; Field Museum of Natural History, 1400 South Lake Shore Drive, Chicago, USA.
| | - Kongmany Sydara
- Institute of Traditional Medicine, Vientiane, Lao PDR, Laos.
| | - Andrew Newsome
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, 833 South Wood Street, Chicago, IL 60612, USA.
| | - Chang Hwa Hwang
- Institute for Tuberculosis Research, University of Illinois at Chicago, 833 South Wood Street, Chicago, IL 60612, USA.
| | - David C Lankin
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, 833 South Wood Street, Chicago, IL 60612, USA.
| | - Charlotte Simmler
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, 833 South Wood Street, Chicago, IL 60612, USA.
| | - José G Napolitano
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, 833 South Wood Street, Chicago, IL 60612, USA.
| | - Richard Ree
- Field Museum of Natural History, 1400 South Lake Shore Drive, Chicago, USA.
| | - James G Graham
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, 833 South Wood Street, Chicago, IL 60612, USA; Field Museum of Natural History, 1400 South Lake Shore Drive, Chicago, USA.
| | - Charlotte Gyllenhaal
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, 833 South Wood Street, Chicago, IL 60612, USA.
| | | | | | - Guido F Pauli
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, 833 South Wood Street, Chicago, IL 60612, USA.
| | - Scott G Franzblau
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, 833 South Wood Street, Chicago, IL 60612, USA; Institute for Tuberculosis Research, University of Illinois at Chicago, 833 South Wood Street, Chicago, IL 60612, USA.
| | - Djaja Djendoel Soejarto
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, 833 South Wood Street, Chicago, IL 60612, USA; Field Museum of Natural History, 1400 South Lake Shore Drive, Chicago, USA.
| |
Collapse
|
11
|
Sharma SK, Singh H. A review on pharmacological significance of genus Jatropha (Euphorbiaceae). Chin J Integr Med 2012; 18:868-80. [DOI: 10.1007/s11655-012-1267-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2012] [Indexed: 10/27/2022]
|
12
|
Gyllenhaal C, Kadushin M, Southavong B, Sydara K, Bouamanivong S, Xaiveu M, Xuan L, Hiep N, Hung N, Loc P, Dac L, Bich T, Cuong N, Ly H, Zhang H, Franzblau S, Xie H, Riley M, Elkington B, Nguyen H, Waller D, Ma C, Tamez P, Tan G, Pezzuto J, Soejarto D. Ethnobotanical approach versus random approach in the search for new bioactive compounds: support of a hypothesis. PHARMACEUTICAL BIOLOGY 2012; 50:30-41. [PMID: 22196581 PMCID: PMC3533514 DOI: 10.3109/13880209.2011.634424] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
CONTEXT Whether natural product drug discovery programs should rely on wild plants collected "randomly" from the natural environment, or whether they should also include plants collected on the basis of use in traditional medicine remains an open question. OBJECTIVE This study analyzes whether plants with ethnomedical uses from Vietnam and Laos have a higher hit rate in bioassay testing than plants collected from a national park in Vietnam with the goal of maximizing taxonomic diversity ("random" collection). MATERIALS AND METHODS All plants were extracted and subjected to bioassay in the same laboratories. Results of assays of plant collections and plant parts (samples) were scored as active or inactive based on whether any extracts had a positive result in a bioassay. Contingency tables were analyzed using χ(2) statistics. RESULTS Random collections had a higher hit rate than ethnomedical collections, but for samples, ethnomedical plants were more likely to be active. Ethnomedical collections and samples had higher hit rates for tuberculosis, while samples, but not collections, had a higher hit rate for malaria. Little evidence was found to support an advantage for ethnomedical plants in HIV, chemoprevention and cancer bioassays. Plants whose ethnomedical uses directly correlated to a bioassay did not have a significantly higher hit rate than random plants. DISCUSSION Plants with ethnomedical uses generally had a higher rate of activity in some drug discovery bioassays, but the assays did not directly confirm specific uses. CONCLUSIONS Ethnomedical uses may contribute to a higher rate of activity in drug discovery screening.
Collapse
Affiliation(s)
- C. Gyllenhaal
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - M.R. Kadushin
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
- Botany Department, Field Museum, Chicago, IL, USA
| | - B. Southavong
- Institute of Traditional Medicine, Ministry of Health, Vientiane, Lao People’s Democratic Republic
| | - K. Sydara
- Institute of Traditional Medicine, Ministry of Health, Vientiane, Lao People’s Democratic Republic
| | - S. Bouamanivong
- National Herbarium of Laos, National Science Council, Vientiane, Lao People’s Democratic Republic
| | - M. Xaiveu
- Institute of Traditional Medicine, Ministry of Health, Vientiane, Lao People’s Democratic Republic
| | - L.T. Xuan
- Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - N.T. Hiep
- Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - N.V. Hung
- Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - P.K. Loc
- Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - L.X. Dac
- Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - T.Q. Bich
- Cuc Phuong National Park, Ninh Binh Province, Vietnam
| | - N.M. Cuong
- Cuc Phuong National Park, Ninh Binh Province, Vietnam
| | - H.M. Ly
- National Institute of Health and Epidemics, Hanoi, Vietnam
| | - H.J. Zhang
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - S.G. Franzblau
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - H. Xie
- Center for Clinical and Translational Sciences, University of Illinois at Chicago, Chicago IL, USA
| | - M.C. Riley
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - B.G. Elkington
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - H.T. Nguyen
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - D.P. Waller
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - C.Y. Ma
- U.S. Pharmacopoeia, Twinbrook Parkway Rockville, MD, USA
| | - P. Tamez
- University of Notre Dame, Notre Dame, IN, USA
| | - G.T. Tan
- College of Pharmacy, University of Hawaii, Hilo, HI, USA
| | - J.M. Pezzuto
- College of Pharmacy, University of Hawaii, Hilo, HI, USA
| | - D.D. Soejarto
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
- Botany Department, Field Museum, Chicago, IL, USA
| |
Collapse
|