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Yinda LEDO, Onanga R, Obiang CS, Begouabe H, Akomo-Okoue EF, Obame-Nkoghe J, Mitola R, Ondo JP, Atome GRN, Engonga LCO, Ibrahim, Setchell JM, Godreuil S. Antibacterial and antioxidant activities of plants consumed by western lowland gorilla (Gorilla gorilla gorilla) in Gabon. PLoS One 2024; 19:e0306957. [PMID: 39259705 PMCID: PMC11389915 DOI: 10.1371/journal.pone.0306957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 06/26/2024] [Indexed: 09/13/2024] Open
Abstract
Zoopharmacognosy is the study of the self-medication behaviors of non-human animals that use plant, animal or soil items as remedies. Recent studies have shown that some of the plants employed by animals may also be used for the same therapeutic purposes in humans. The aim of this study was to determine the antioxidant and antibacterial activity of Ceiba pentandra, Myrianthus arboreus, Ficus subspecies (ssp.) and Milicia excelsa bark crude extracts (BCE), plants consumed by western lowland gorillas (Gorilla gorilla gorilla) in Moukalaba-Doudou National Park (MDNP) and used in traditional medicine, and then to characterize their phytochemical compounds. DPPH (2,2-Diphenyl-1-Picrylhydrazyl), phosphomolybdenum complex and β-carotene bleaching methods were used to assess antioxidant activity. Antimicrobial susceptibility testing was performed using the diffusion method, while minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were assessed using the microdilution method. The highest level of total phenolics was found in Myrianthus arboreus aqueous extract [385.83 ± 3.99 mg [gallic acid equivalent (GAE)/g]. Total flavonoid (134.46 ± 3.39) mg quercetin equivalent (QE)/100 g of extract] were highest in Milicia excelsa, tannin [(272.44 ± 3.39) mg tannic acid equivalent (TAE)/100 g of extract] in Myrianthus arboreus and proanthocyanidin [(404.33 ± 3.39) mg apple procyanidins equivalent (APE)/100 g of extract] in Ceiba pentandra. Ficus ssp. (IC50 1.34 ±3.36 μg/mL; AAI 18.57 ± 0.203) ethanolic BCE and Milicia excelsa (IC50 2.07 ± 3.37 μg/mL; AAI 12.03 ± 0.711) showed the strongest antioxidant activity. Myrianthus arboreus ethanolic BCE (73.25 ± 5.29) and Milicia excelsa aqueous BCE (38.67 ± 0.27) showed the strongest percentage of total antioxidant capacity (TAC). Ceiba pentandra ethanolic BCE (152.06 ± 19.11 mg AAE/g) and Ficus ssp aqueous BCE (124.33 ± 39.05 mg AAE/g) showed strongest relative antioxidant activity (RAA). The plant BCE showed antimicrobial activity against multidrug resistant (MDR) E. coli (DECs) isolates, with MICs varying from 1.56 to 50 mg/mL and inhibition diameters ranging from 7.34 ± 0.57 to 13.67 ± 0.57mm. Several families of compounds were found, including total phenolic compounds, flavonoids, tannins and proanthocyanidins were found in the plant BCEs. The plant BCEs showed antioxidant activities with free radical scavenging and antimicrobial activities against 10 MDR E. coli (DECs) isolates, and could be a promising novel source for new drug discovery.
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Affiliation(s)
| | - Richard Onanga
- Laboratory of Bacteriology, Interdisciplinary Medical Research Center of Franceville, Franceville, Gabon
| | - Cédric Sima Obiang
- Laboratory of Research in Biochemistry (LAREBIO), University of Sciences and Technology of Masuku (USTM), Franceville, Gabon
| | - Herman Begouabe
- Laboratory of Research in Biochemistry (LAREBIO), University of Sciences and Technology of Masuku (USTM), Franceville, Gabon
| | | | - Judicaël Obame-Nkoghe
- Unity of Vector Ecology, Interdisciplinary Medical Research Center of Franceville, Franceville, Gabon
| | - Roland Mitola
- Laboratory of Biology, University of Science and Technology of Masuku, Franceville, Gabon
| | - Joseph-Privat Ondo
- Laboratory of Research in Biochemistry (LAREBIO), University of Sciences and Technology of Masuku (USTM), Franceville, Gabon
| | - Guy-Roger Ndong Atome
- Laboratory of Research in Biochemistry (LAREBIO), University of Sciences and Technology of Masuku (USTM), Franceville, Gabon
| | - Louis-Clément Obame Engonga
- Laboratory of Research in Biochemistry (LAREBIO), University of Sciences and Technology of Masuku (USTM), Franceville, Gabon
| | - Ibrahim
- Laboratory of Biology, University of Science and Technology of Masuku, Franceville, Gabon
| | - Joanna M Setchell
- Department of Anthropology, Université de Durham, Durham, United Kingdom
| | - Sylvain Godreuil
- Laboratoire de Bactériologie, CHU de Montpellier, UMR MIVEGEC (IRD, CNRS, Université de Montpelier), Montpellier, France
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Freymann E, d'Oliveira Coelho J, Hobaiter C, Huffman MA, Muhumuza G, Zuberbühler K, Carvalho S. Applying collocation and APRIORI analyses to chimpanzee diets: Methods for investigating nonrandom food combinations in primate self-medication. Am J Primatol 2024; 86:e23603. [PMID: 38293796 DOI: 10.1002/ajp.23603] [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: 03/27/2023] [Revised: 12/12/2023] [Accepted: 01/18/2024] [Indexed: 02/01/2024]
Abstract
Identifying novel medicinal resources in chimpanzee diets has historically presented challenges, requiring extensive behavioral data collection and health monitoring, accompanied by expensive pharmacological analyses. When putative therapeutic self-medicative behaviors are observed, these events are often considered isolated occurrences, with little attention paid to other resources ingested in combination. For chimpanzees, medicinal resource combinations could play an important role in maintaining well-being by tackling different symptoms of an illness, chemically strengthening efficacy of a treatment, or providing prophylactic compounds that prevent future ailments. We call this concept the self-medicative resource combination hypothesis. However, a dearth of methodological approaches for holistically investigating primate feeding ecology has limited our ability to identify nonrandom resource combinations and explore potential synergistic relationships between medicinal resource candidates. Here we present two analytical tools that test such a hypothesis and demonstrate these approaches on feeding data from the Sonso chimpanzee community in Budongo Forest, Uganda. Using 4 months of data, we establish that both collocation and APRIORI analyses are effective exploratory tools for identifying binary combinations, and that APRIORI is effective for multi-item rule associations. We then compare outputs from both methods, finding up to 60% agreement, and propose APRIORI as more effective for studies requiring control over confidence intervals and those investigating nonrandom associations between more than two resources. These analytical tools, which can be extrapolated across the animal kingdom, can provide a cost-effective and efficient method for targeting resources for further pharmacological investigation, potentially aiding in the discovery of novel medicines.
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Affiliation(s)
- Elodie Freymann
- Primate Models for Behavioural Evolution Lab, Department of Anthropology and Museum Ethnography, Institute of Human Sciences, University of Oxford, Oxford, UK
| | - João d'Oliveira Coelho
- Primate Models for Behavioural Evolution Lab, Department of Anthropology and Museum Ethnography, Institute of Human Sciences, University of Oxford, Oxford, UK
| | - Catherine Hobaiter
- Budongo Conservation Field Station, Masindi, Uganda
- Wild Minds Lab, School of Psychology and Neuroscience, University of St Andrews, St Andrews, UK
| | - Michael A Huffman
- Wildlife Research Center, Inuyama Campus, Kyoto University, Inuyama, Japan
| | | | - Klaus Zuberbühler
- Budongo Conservation Field Station, Masindi, Uganda
- Department of Comparative Cognition, Institute of Biology, University of Neuchâtel, Neuchâtel, Switzerland
| | - Susana Carvalho
- Primate Models for Behavioural Evolution Lab, Department of Anthropology and Museum Ethnography, Institute of Human Sciences, University of Oxford, Oxford, UK
- Interdisciplinary Centre for Archaeology and the Evolution of Human Behaviour, University of Algarve, Faro, Portugal Gorongosa National Park, Sofala, Mozambique
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3
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Lacroux C, Krief S, Douady S, Cornette R, Durand S, Aleeje A, Asalu E, Pouydebat E. Chimpanzees select comfortable nesting tree species. Sci Rep 2023; 13:16943. [PMID: 37805595 PMCID: PMC10560204 DOI: 10.1038/s41598-023-44192-6] [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: 10/07/2022] [Accepted: 10/04/2023] [Indexed: 10/09/2023] Open
Abstract
Every evening, chimpanzees build sleeping "nests" in trees. In some studied communities, individuals appear to be selective about the tree species used, which has led researchers to hypothesize whether chimpanzees prefer trees that repel troublesome insects or/and that provide comfortable and stable structures. We investigate these hypotheses, or a trade-off between both, though study of tree species preference based on their biomechanical and/or biochemical properties in the Sebitoli chimpanzee community in Kibale National Park, Uganda. The ten tree species most frequently used for nesting were compared with ten abundant in their environment but not preferred for nesting. For these 20 tree species, we determined their biomechanical and morphological characteristics such as foliar density, foliar units form (shape and size) and branch rigidity. Their spatial repellent activity, previously tested against Anopheles gambiae was incorporated into the analysis. Chimpanzees chose tree species with medium-sized and elongated foliar units, high foliar density and branch with stiffer wood. In addition, most tree species with such mechanical and morphological properties also have mosquito repellent activity. These tree properties may provide a comfortable sleeping environment enhancing sleep quality. Finally, a comparison across chimpanzee communities would be relevant to understand whether these choices are not only ecological but also cultural.
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Affiliation(s)
- Camille Lacroux
- UMR 7206 CNRS/MNHN/P7, Eco-anthropologie, Museum National d'Histoire Naturelle, Musée de L'Homme, 17 Place du Trocadéro, 75116, Paris, France.
- UMR 7179 CNRS/MNHN, Mécanismes Adaptatifs et Evolution, Museum National d'Histoire Naturelle, 57 Rue Cuvier, 75231, Paris, France.
- Sebitoli Chimpanzee Project, Great Ape Conservation Project, Kibale National Park, Fort Portal, Uganda.
- La Phocéenne de Cosmétique, ZA Les Roquassiers, 174 Rue de La Forge, 13300, Salon-de-Provence, France.
| | - Sabrina Krief
- UMR 7206 CNRS/MNHN/P7, Eco-anthropologie, Museum National d'Histoire Naturelle, Musée de L'Homme, 17 Place du Trocadéro, 75116, Paris, France
- Sebitoli Chimpanzee Project, Great Ape Conservation Project, Kibale National Park, Fort Portal, Uganda
| | - Stéphane Douady
- Matière et Systèmes Complexes, Université Paris-Diderot, 75025, Paris Cedex 13, France
| | - Raphaël Cornette
- UMR 7205 CNRS/MNHN/SU/EPHE/UA, Institut de Systématique, Évolution, Biodiversité, Museum National d'Histoire Naturelle, CP50, Paris, France
| | - Sophie Durand
- La Phocéenne de Cosmétique, ZA Les Roquassiers, 174 Rue de La Forge, 13300, Salon-de-Provence, France
| | - Alfred Aleeje
- Sebitoli Chimpanzee Project, Great Ape Conservation Project, Kibale National Park, Fort Portal, Uganda
| | - Edward Asalu
- Uganda Wildlife Authority, Kibale National Park, Kibale, Uganda
| | - Emmanuelle Pouydebat
- UMR 7179 CNRS/MNHN, Mécanismes Adaptatifs et Evolution, Museum National d'Histoire Naturelle, 57 Rue Cuvier, 75231, Paris, France
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Ribeiro A, Serrano R, da Silva IBM, Gomes ET, Pinto JF, Silva O. The Genus Diospyros: A Review of Novel Insights into the Biological Activity and Species of Mozambican Flora. PLANTS (BASEL, SWITZERLAND) 2023; 12:2833. [PMID: 37570987 PMCID: PMC10421099 DOI: 10.3390/plants12152833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/21/2023] [Accepted: 07/29/2023] [Indexed: 08/13/2023]
Abstract
Species of the Diospyros L. genus (Ebenaceae family) have been largely used in traditional medicine for the treatment of several diseases, especially infectious ones. To date, active major compounds such as naphthoquinones, triterpenoids, and tannins have been isolated and pharmacologically validated from Diospyros species. The present study summarizes the information available in the literature on the species described in the Flora of Mozambique. To do so, scientific databases (e.g., PubMed, Scopus, Web of Science, and Google Scholar) were searched using various keywords and Boolean connectors to gather and summarize the information. Of the 31 native and naturalized species in the Flora of Mozambique, 17 are used in different regions of Africa and were described for their traditional uses. They were reported to treat more than 20 diseases, mostly infectious, in the gastrointestinal and oral cavity compartments. This work provides an overview of the therapeutical potential of Diospyros species and explores novel insights on the antimicrobial potential of extracts and/or isolated compounds of these Mozambican species.
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Affiliation(s)
| | | | | | | | | | - Olga Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal; (A.R.); (R.S.); (I.B.M.d.S.); (E.T.G.); (J.F.P.)
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5
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Do porcupines self-medicate? The seasonal consumption of plants with antiparasitic properties coincides with that of parasite infections in Hystrix cristata of Central Italy. EUR J WILDLIFE RES 2022. [DOI: 10.1007/s10344-022-01620-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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6
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De la Fuente MF, Souto A, Albuquerque UP, Schiel N. Self-medication in nonhuman primates: A systematic evaluation of the possible function of the use of medicinal plants. Am J Primatol 2022; 84:e23438. [PMID: 36193566 DOI: 10.1002/ajp.23438] [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: 01/04/2022] [Revised: 09/06/2022] [Accepted: 09/09/2022] [Indexed: 11/08/2022]
Abstract
Animal self-medication is thought to provide an adaptive advantage, as species would actively respond to a disease state or homeostatic imbalances. In wild nonhuman primates, it is challenging to differentiate plant use as part of the diet or as medication, especially because self-medication can be preventive or therapeutic. Here, we aimed to compile the available potential evidence on primate self-medication modes, investigating which proposed requirements are fulfilled for each plant species reported to date. We systematically reviewed the scientific literature on plant use for potential self-medication in wild nonhuman primates. To construct the extensive database, we extracted data on the primate species, study area, plant/plant's part used, the requirement(s) met for demonstrating self-medication modes, and self-medicative behavioral patterns. We also updated available information on plant's biological compounds and/or physical characteristics, pharmacological properties, and ethnomedical uses. We identified 575 plant species (135 families), used by 25 primate species (9 families). Plants were used by Old World monkeys (46.5%, n = 268 plant species), followed by apes (41%, n = 235), New World monkeys (13.4%, n = 77), and prosimians (1%, n = 6). We found three general types of self-medicative behaviors: ingestion (including, but not limited to, leaf-swallowing, seed-swallowing, and bitter pith chewing), topical (fur-rubbing), and nest fumigation. Plant uses were associated with antiparasitic, antibacterial, antimalarial, anti-inflammatory, insect repellent, among other properties. Self-medication is widespread in nonhuman primate species across Central and South America, Africa, Madagascar, and Asia. Long-term field research efforts and studies integrating different research sites and topics are urgent to advance our knowledge into the evolution of plant selection, medical traditions, and to bring insights into potentially novel medicinal plants and bioactive compounds to treat emergent or established primate and human diseases.
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Affiliation(s)
- María Fernanda De la Fuente
- Laboratório de Etologia Teórica e Aplicada, Departamento de Biologia, Universidade Federal Rural de Pernambuco, Recife, Brazil
| | - Antonio Souto
- Laboratório de Etologia, Centro de Biociências, Departamento de Zoologia, Universidade Federal de Pernambuco, Recife, Brazil
| | - Ulysses P Albuquerque
- Laboratório de Ecologia e Evolução de Sistemas Socioecológicos, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Brazil
| | - Nicola Schiel
- Laboratório de Etologia Teórica e Aplicada, Departamento de Biologia, Universidade Federal Rural de Pernambuco, Recife, Brazil
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7
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Lacroux C, Pouydebat E, Rossignol M, Durand S, Aleeje A, Asalu E, Chandre F, Krief S. Repellent activity against Anopheles gambiae of the leaves of nesting trees in the Sebitoli chimpanzee community of Kibale National Park, Uganda. Malar J 2022; 21:271. [PMID: 36163024 PMCID: PMC9513939 DOI: 10.1186/s12936-022-04291-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 09/09/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Every evening, chimpanzees (Pan troglodytes) build a sleeping platform so called "nest" by intertwining branches of tree. Most of chimpanzees' communities studied have a preference for tree species in which they nest. As female mosquitoes are feeding on the blood of their host at nighttime, chimpanzees may prevent being disturbed and bitten by mosquitoes by selecting tree species having properties to repel them. METHODS To test the hypothesis that chimpanzees choose tree species for their aromatic properties, data related to 1,081 nesting trees built between 2017 and 2019 in the Sebitoli community of Kibale National Park (Uganda) were analysed. The 10 most used trees were compared to the 10 most common trees in the habitat that were not preferred for nesting. Leaves from the 20 trees species were collected and hydro-distillated to obtain essential oils and one of the by-products for behavioural bioassays against females of the African mosquito, Anopheles gambiae. RESULTS Sebitoli chimpanzees showed tree preferences: 10 species correspond to more than 80% of the nesting trees. Out of the essential oil obtained from the 10 nesting trees, 7 extracts for at least one concentration tested showed spatial repellency, 7 were irritant by contact and none were toxic. In the other hand, for the abundant trees in their habitat not used by chimpanzees, only 3 were repellent and 5 irritants. DISCUSSION AND CONCLUSION This study contributes to evidence that chimpanzees, to avoid annoying mosquitoes, may select their nesting trees according to their repellent properties (linked to chemical parameters), a potential inspiration for human health.
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Affiliation(s)
- Camille Lacroux
- UMR 7206 CNRS/MNHN/P7, Eco-Anthropologie, Museum National d'Histoire Naturelle, Musée de L'Homme, 17 place du Trocadéro, 75116, Paris, France. .,UMR 7179 CNRS/MNHN, Mécanismes Adaptatifs Et Evolution, Museum National d'Histoire Naturelle, 57 rue Cuvier, 75231, Paris, France. .,Sebitoli Chimpanzee Project, Great Apes Conservation Project, Kibale National Park, Fort Portal, Uganda. .,La Phocéenne de Cosmétique, ZA Les Roquassiers, 174 Rue de la Forge, 13300, Salon-de-Provence, France.
| | - Emmanuelle Pouydebat
- UMR 7179 CNRS/MNHN, Mécanismes Adaptatifs Et Evolution, Museum National d'Histoire Naturelle, 57 rue Cuvier, 75231, Paris, France
| | - Marie Rossignol
- Maladies Infectieuses et Vecteurs: Ecologie, Génétique, Evolution Et Contrôle, Institut de Recherche Et Développement, UMR MIVEGEC IRD/CNRS/Montpellier University, 911 avenue Agropolis, 34394, Montpellier Cedex 5, France
| | - Sophie Durand
- La Phocéenne de Cosmétique, ZA Les Roquassiers, 174 Rue de la Forge, 13300, Salon-de-Provence, France
| | - Alfred Aleeje
- Sebitoli Chimpanzee Project, Great Apes Conservation Project, Kibale National Park, Fort Portal, Uganda
| | - Edward Asalu
- Uganda Wildlife Authority, Kibale National Park, Fort Portal, Uganda
| | - Fabrice Chandre
- Maladies Infectieuses et Vecteurs: Ecologie, Génétique, Evolution Et Contrôle, Institut de Recherche Et Développement, UMR MIVEGEC IRD/CNRS/Montpellier University, 911 avenue Agropolis, 34394, Montpellier Cedex 5, France
| | - Sabrina Krief
- UMR 7206 CNRS/MNHN/P7, Eco-Anthropologie, Museum National d'Histoire Naturelle, Musée de L'Homme, 17 place du Trocadéro, 75116, Paris, France.,Sebitoli Chimpanzee Project, Great Apes Conservation Project, Kibale National Park, Fort Portal, Uganda
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8
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Windley HR, Starrs D, Stalenberg E, Rothman JM, Ganzhorn JU, Foley WJ. Plant secondary metabolites and primate food choices: A meta-analysis and future directions. Am J Primatol 2022; 84:e23397. [PMID: 35700311 DOI: 10.1002/ajp.23397] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 05/06/2022] [Accepted: 05/11/2022] [Indexed: 11/07/2022]
Abstract
The role of plant secondary metabolites (PSMs) in shaping the feeding decisions, habitat suitability, and reproductive success of herbivorous mammals has been a major theme in ecology for decades. Although primatologists were among the first to test these ideas, studies of PSMs in the feeding ecology of non-human primates have lagged in recent years, leading to a recent call for primatologists to reconnect with phytochemists to advance our understanding of the primate nutrition. To further this case, we present a formal meta-analysis of diet choice in response to PSMs based on field studies on wild primates. Our analysis of 155 measurements of primate feeding response to PSMs is drawn from 53 studies across 43 primate species which focussed primarily on the effect of three classes of PSMs tannins, phenolics, and alkaloids. We found a small but significant effect of PSMs on the diet choice of wild primates, which was largely driven by the finding that colobine primates showed a moderate aversion to condensed tannins. Conversely, there was no evidence that PSMs had a significant deterrent effect on food choices of non-colobine primates when all were combined into a single group. Furthermore, within the colobine primates, no other PSMs influenced feeding choices and we found no evidence that foregut anatomy significantly affected food choice with respect to PSMs. We suggest that methodological improvements related to experimental approaches and the adoption of new techniques including metabolomics are needed to advance our understanding of primate diet choice.
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Affiliation(s)
- Hannah R Windley
- Research School of Biology, The Australian National University, Canberra, Australian Capital Territory, Australia.,Wildlife Ecology Laboratory, Department of Wildlife Biology, Forestry and Forest Products Research Institute, Tsukuba, Ibaraki, Japan
| | - Danswell Starrs
- Research School of Biology, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Eleanor Stalenberg
- Research School of Biology, The Australian National University, Canberra, Australian Capital Territory, Australia.,Hawkesbury Institute of the Environment, Western Sydney University, Richmond, New South Wales, Australia
| | - Jessica M Rothman
- Department of Anthropology, Hunter College of the City University of New York, and New York Consortium in Evolutionary Primatology, New York, New York, USA
| | - Joerg U Ganzhorn
- Animal Ecology and Conservation, Universität Hamburg, Hamburg, Germany
| | - William J Foley
- Research School of Biology, The Australian National University, Canberra, Australian Capital Territory, Australia.,Animal Ecology and Conservation, Universität Hamburg, Hamburg, Germany
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9
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Laudisoit A, Huyghe P, Willie J, Ndjoku B, Scholier T, Dz'na J, Tagg N, Maher S, Mande C, Hoda T, Hicks TC, Baelo P, Kpanyogo O, Ndjango Ngbathe G, Crispin Gembu G, Omatoko J, Asimonyio Anio J, Leirs H, Verheyen E. Chimpanzees surviving in a fragmented high‐altitude forest landscape of the Congolese Albertine Rift. CONSERVATION SCIENCE AND PRACTICE 2021. [DOI: 10.1111/csp2.403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Affiliation(s)
- Anne Laudisoit
- EcoHealth Alliance New York New York USA
- Department Biology, Evolutionary Ecology Group University of Antwerp Wilrijk Belgium
| | - Pierre Huyghe
- Department Biology, Evolutionary Ecology Group University of Antwerp Wilrijk Belgium
| | - Jacob Willie
- Department of Biology, Terrestrial Ecology Unit Ghent University Ghent Belgium
- The Antwerp Zoo Centre for Research and Conservation (CRC) Royal Zoological Society of Antwerp Antwerp Belgium
| | - Bienvenu Ndjoku
- Faculty of Sciences, Biodiversity Monitoring Centre (CSB) University of Kisangani Kisangani Democratic Republic of the Congo
| | - Tiffany Scholier
- Department of Biological and Environmental Science University of Jyväskylä Jyväskylä Finland
| | - Jérôme Dz'na
- Higher Technical and Pedagogical Institute of Rethy Ituri Democratic Republic of the Congo
| | - Nikki Tagg
- The Antwerp Zoo Centre for Research and Conservation (CRC) Royal Zoological Society of Antwerp Antwerp Belgium
| | | | - Claude Mande
- Faculty of Sciences, Department of Ecology and Wildlife Management University of Kisangani Kisangani Democratic Republic of the Congo
- Centre for International Forestry Research (CIFOR) Bogor (Barat) Indonesia
| | - Tara Hoda
- EcoHealth Alliance New York New York USA
| | | | - Pascal Baelo
- Faculty of Sciences, Biodiversity Monitoring Centre (CSB) University of Kisangani Kisangani Democratic Republic of the Congo
| | - Oti Kpanyogo
- Civil Society of the Ituri Province Rethy Democratic Republic of the Congo
| | | | - Guy Crispin Gembu
- Faculty of Sciences, Biodiversity Monitoring Centre (CSB) University of Kisangani Kisangani Democratic Republic of the Congo
- Faculty of Sciences, Department of Ecology and Wildlife Management University of Kisangani Kisangani Democratic Republic of the Congo
| | - Joseph Omatoko
- Faculty of Sciences, Biodiversity Monitoring Centre (CSB) University of Kisangani Kisangani Democratic Republic of the Congo
| | - Justin Asimonyio Anio
- Faculty of Sciences, Biodiversity Monitoring Centre (CSB) University of Kisangani Kisangani Democratic Republic of the Congo
| | - Herwig Leirs
- Department Biology, Evolutionary Ecology Group University of Antwerp Wilrijk Belgium
| | - Erik Verheyen
- Department Biology, Evolutionary Ecology Group University of Antwerp Wilrijk Belgium
- OD Taxonomy and Phylogeny Royal Belgian Institute of Natural Sciences Brussels Belgium
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10
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Hardy K. Paleomedicine and the Evolutionary Context of Medicinal Plant Use. ACTA ACUST UNITED AC 2020; 31:1-15. [PMID: 33071384 PMCID: PMC7546135 DOI: 10.1007/s43450-020-00107-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 09/23/2020] [Indexed: 12/12/2022]
Abstract
Modern human need for medicines is so extensive that it is thought to be a deep evolutionary behavior. There is abundant evidence from our Paleolithic and later prehistoric past, of survival after periodontal disease, traumas, and invasive medical treatments including trepanations and amputations, suggesting a detailed, applied knowledge of medicinal plant secondary compounds. Direct archeological evidence for use of plants in the Paleolithic is rare, but evidence is growing. An evolutionary context for early human use of medicinal plants is provided by the broad evidence for animal self-medication, in particular, of non-human primates. During the later Paleolithic, there is evidence for the use of poisonous and psychotropic plants, suggesting that Paleolithic humans built on and expanded their knowledge and use of plant secondary compounds.
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Affiliation(s)
- Karen Hardy
- Institució Catalana de Recerca i Estudis Avançats, Pg. Lluís Companys 23, 08010 Barcelona, Catalonia Spain.,Departament de Prehistòria, Facultat de Filosofia i Lletres, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Catalonia Spain
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11
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Tasdemir D, MacIntosh AJJ, Stergiou P, Kaiser M, Mansour NR, Bickle Q, Huffman MA. Antiprotozoal and antihelminthic properties of plants ingested by wild Japanese macaques (Macaca fuscata yakui) in Yakushima Island. JOURNAL OF ETHNOPHARMACOLOGY 2020; 247:112270. [PMID: 31589965 DOI: 10.1016/j.jep.2019.112270] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 09/30/2019] [Accepted: 10/01/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Primates forage on a variety of plant parts to balance their dietary intake to meet requirements of energy, nutrition and maintenance, however the reason(s) leading them to ingest some plants which have no nutritional value and/or contain bioactive or even toxic secondary metabolites is recently gaining closer attention. The growing literature suggests that primates consume plants for medicinal purposes (self-medication) as well, particularly when infected with parasites and pathogens (bacteria, viruses, microbes). Interestingly, some of the plants they consume are also used by humans for similar purposes or may have potential uses for humans. MATERIALS AND METHODS As part of a 16-month study of the parasite ecology of a sub-species of Japanese macaques (Macaca fuscata yakui) on the island of Yakushima, we surveyed their feeding habits and collected a subset of plants and plant parts observed being ingested by macaques. The ethnomedicinal value of these plants was surveyed and methanolic extracts of 45 plant parts were tested in vitro against important parasites of humans, including four protozoan parasites Plasmodium falciparum, Trypanosoma brucei rhodesiense, T. cruzi and Leishmania donovani, and the trematode flatworm Schistosoma mansoni. Potential toxicity of the extracts was also assessed on mammalian cells. RESULTS A wide range of ethnomedicinal uses in Asia for these plants is noted, with 37% associated with the treatment of parasites, pathogens and related symptoms. Additionally, the 45 extracts tested showed broad and significant activity against our test organisms. All extracts were active against T. b. rhodesiense. The majority (over 80%) inhibited the growth of P. falciparum and L. donovani. Half of the extracts also displayed antiprotozoal potential against T. cruzi while only several extracts were active against both larval and adult stages of S. mansoni. Cytotoxicity was generally low, although several extracts lacked specific toxicity to test parasites. CONCLUSIONS Our results indicated a number of plants and their parts to have antiparasitic activity not previously reported in the ethnopharmacological literature. Enhanced understanding of the primate diets, particularly during periods of intensified parasite infection risk may help to further narrow down plants of interest for lead compound development. The study of animal self-medication is a complementary approach, with precedence, to drug discovery of new lead drug compounds against human parasitic diseases.
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Affiliation(s)
- Deniz Tasdemir
- Department of Pharmaceutical and Biological Chemistry, Centre for Pharmacognosy and Phytotherapy, School of Pharmacy, University of London, London, WC1N 1AX, UK; GEOMAR Centre for Marine Biotechnology, Research Unit Marine Natural Products Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, 24106, Kiel, Germany; Kiel University, Christian-Albrechts-Platz 4, 24118, Kiel, Germany.
| | - Andrew J J MacIntosh
- Primate Research Institute, Kyoto University, Kanrin 41-2, 484-8506, Inuyama, Japan
| | - Polyxeni Stergiou
- Department of Pharmaceutical and Biological Chemistry, Centre for Pharmacognosy and Phytotherapy, School of Pharmacy, University of London, London, WC1N 1AX, UK
| | - Marcel Kaiser
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, CH-4051, Basel, Switzerland; University of Basel, 4003, Basel, Switzerland
| | - Nuha R Mansour
- Department of Infection Biology, Faculty of Infectious and Tropical Disease, London School of Hygiene and Tropical Medicine, London, WC1E 7HT, United Kingdom
| | - Quentin Bickle
- Department of Infection Biology, Faculty of Infectious and Tropical Disease, London School of Hygiene and Tropical Medicine, London, WC1E 7HT, United Kingdom
| | - Michael A Huffman
- Primate Research Institute, Kyoto University, Kanrin 41-2, 484-8506, Inuyama, Japan.
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12
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Nugraha AS, Triatmoko B, Wangchuk P, Keller PA. Vascular Epiphytic Medicinal Plants as Sources of Therapeutic Agents: Their Ethnopharmacological Uses, Chemical Composition, and Biological Activities. Biomolecules 2020; 10:biom10020181. [PMID: 31991657 PMCID: PMC7072150 DOI: 10.3390/biom10020181] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 01/17/2020] [Accepted: 01/21/2020] [Indexed: 02/07/2023] Open
Abstract
This is an extensive review on epiphytic plants that have been used traditionally as medicines. It provides information on 185 epiphytes and their traditional medicinal uses, regions where Indigenous people use the plants, parts of the plants used as medicines and their preparation, and their reported phytochemical properties and pharmacological properties aligned with their traditional uses. These epiphytic medicinal plants are able to produce a range of secondary metabolites, including alkaloids, and a total of 842 phytochemicals have been identified to date. As many as 71 epiphytic medicinal plants were studied for their biological activities, showing promising pharmacological activities, including as anti-inflammatory, antimicrobial, and anticancer agents. There are several species that were not investigated for their activities and are worthy of exploration. These epipythes have the potential to furnish drug lead compounds, especially for treating cancers, and thus warrant indepth investigations.
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Affiliation(s)
- Ari Satia Nugraha
- Drug Utilisation and Discovery Research Group, Faculty of Pharmacy, University of Jember, Jember, Jawa Timur 68121, Indonesia;
- Correspondence: (A.S.N.); (P.A.K.); Tel.: +62-3-3132-4736 (A.S.N.); +61-2-4221-4692 (P.A.K.)
| | - Bawon Triatmoko
- Drug Utilisation and Discovery Research Group, Faculty of Pharmacy, University of Jember, Jember, Jawa Timur 68121, Indonesia;
| | - Phurpa Wangchuk
- Centre for Biodiscovery and Molecular Development of Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, QLD 4878, Australia;
| | - Paul A. Keller
- School of Chemistry and Molecular Bioscience and Molecular Horizons, University of Wollongong, and Illawarra Health & Medical Research Institute, Wollongong, NSW 2522 Australia
- Correspondence: (A.S.N.); (P.A.K.); Tel.: +62-3-3132-4736 (A.S.N.); +61-2-4221-4692 (P.A.K.)
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13
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Hardy K. Paleomedicine and the use of plant secondary compounds in the Paleolithic and Early Neolithic. Evol Anthropol 2019; 28:60-71. [DOI: 10.1002/evan.21763] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 10/10/2018] [Accepted: 12/22/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Karen Hardy
- ICREA, Pg. Lluís Companys 23 08010 Barcelona Catalonia Spain
- Departament de PrehistòriaFacultat de Filosofia i Lletres, Universitat Autònoma de Barcelona Barcelona Catalonia Spain
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14
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Olajuyigbe OO, Onibudo TE, Coopoosamy RM, Ashafa AOT, Afolayan AJ. Bioactive Compounds and in vitro Antimicrobial Activities of Ethanol Stem Bark Extract of Trilepisium madagascariense DC. INT J PHARMACOL 2018. [DOI: 10.3923/ijp.2018.901.912] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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15
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Matsuzawa T. World Chimpanzee Day and the Ai's Scarf Award. Primates 2018; 59:409-412. [PMID: 30132085 DOI: 10.1007/s10329-018-0681-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tetsuro Matsuzawa
- Kyoto University, Kyoto, Japan.
- The Japan Monkey Centre, Inuyama, Japan.
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16
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Moore JF, Mulindahabi F, Gatorano G, Niyigaba P, Ndikubwimana I, Cipolletta C, Masozera MK. Shifting through the forest: home range, movement patterns, and diet of the eastern chimpanzee (Pan troglodytes schweinfurthii) in Nyungwe National Park, Rwanda. Am J Primatol 2018; 80:e22897. [PMID: 29992652 DOI: 10.1002/ajp.22897] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 06/28/2018] [Accepted: 07/01/2018] [Indexed: 11/08/2022]
Abstract
Populations of the endangered eastern chimpanzee (Pan troglodytes schweinfurthii) are declining throughout their range. Although Nyungwe National Park (NNP) harbors the largest remaining eastern chimpanzee population in Rwanda, we know little about their space use and dietary patterns. We studied home range, movement, and diet of two communities of chimpanzees in NNP using daily tracking data (6:00 am to 6:00 pm) collected from 2000 to 2015. One community, Mayebe, resided in the forest center, and the other community, Cyamudongo, inhabited a forest fragment located about 10 km from the main forest. Home range estimated with the 95% kernel density estimation (KDE) method was 21 km2 for the Mayebe community and 4 km2 for the Cyamudongo community. Chimpanzee home range sizes were smaller during the dry versus wet season and varied monthly throughout the year. The Mayebe community had an average hourly step length of 75 ± SE 5 m with a daily movement range of 987 ± SE 71 m, while the Cyamudongo community had a shorter hourly step length of 52 ± SE 3 m with a daily movement range of 651 ± SE 71 m. Both chimpanzee communities fed primarily on Ficus spp. Other important dietary items included fruits of Symphonia globulifera, Syzygium guineense, and Chrysophyllum gorungosanum for the Mayebe community and Trilepisium madagascariense for the Cyamudongo community. Food choice varied monthly and seasonally for each chimpanzee community. Our study provides the first estimates of home range size and movement parameters for chimpanzees in Rwanda and documents their food habits and seasonal variations therein. We also identified the 50% core home range for each chimpanzee community and suggest this area as the focus of management actions. These results could help park management reduce threats to chimpanzees and other sympatric species by improving the efficiency of ranger patrols.
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Affiliation(s)
- Jennifer F Moore
- Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, Florida
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17
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Liu W, Sherrill-Mix S, Learn GH, Scully EJ, Li Y, Avitto AN, Loy DE, Lauder AP, Sundararaman SA, Plenderleith LJ, Ndjango JBN, Georgiev AV, Ahuka-Mundeke S, Peeters M, Bertolani P, Dupain J, Garai C, Hart JA, Hart TB, Shaw GM, Sharp PM, Hahn BH. Wild bonobos host geographically restricted malaria parasites including a putative new Laverania species. Nat Commun 2017; 8:1635. [PMID: 29158512 PMCID: PMC5696340 DOI: 10.1038/s41467-017-01798-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 10/16/2017] [Indexed: 02/01/2023] Open
Abstract
Malaria parasites, though widespread among wild chimpanzees and gorillas, have not been detected in bonobos. Here, we show that wild-living bonobos are endemically Plasmodium infected in the eastern-most part of their range. Testing 1556 faecal samples from 11 field sites, we identify high prevalence Laverania infections in the Tshuapa-Lomami-Lualaba (TL2) area, but not at other locations across the Congo. TL2 bonobos harbour P. gaboni, formerly only found in chimpanzees, as well as a potential new species, Plasmodium lomamiensis sp. nov. Rare co-infections with non-Laverania parasites were also observed. Phylogenetic relationships among Laverania species are consistent with co-divergence with their gorilla, chimpanzee and bonobo hosts, suggesting a timescale for their evolution. The absence of Plasmodium from most field sites could not be explained by parasite seasonality, nor by bonobo population structure, diet or gut microbiota. Thus, the geographic restriction of bonobo Plasmodium reflects still unidentified factors that likely influence parasite transmission.
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Affiliation(s)
- Weimin Liu
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Scott Sherrill-Mix
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA.,Department of Microbiology, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Gerald H Learn
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Erik J Scully
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, 02138, USA.,Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Yingying Li
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Alexa N Avitto
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Dorothy E Loy
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA.,Department of Microbiology, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Abigail P Lauder
- Department of Microbiology, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Sesh A Sundararaman
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA.,Department of Microbiology, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Lindsey J Plenderleith
- Institute of Evolutionary Biology and Centre for Immunity, Infection and Evolution, University of Edinburgh, Edinburgh, EH9 3FL, UK
| | - Jean-Bosco N Ndjango
- Department of Ecology and Management of Plant and Animal Resources, Faculty of Sciences, University of Kisangani, BP 2012, Kisangani, Democratic Republic of the Congo
| | - Alexander V Georgiev
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, 02138, USA.,School of Biological Sciences, Bangor University, Bangor, LL57 2UW, UK
| | - Steve Ahuka-Mundeke
- Institut National de Recherche Biomedicale, University of Kinshasa, BP 1197, Kinshasa, Democratic Republic of the Congo
| | - Martine Peeters
- Unité Mixte Internationale 233, Institut de Recherche pour le Développement (IRD), INSERM U1175, University of Montpellier 1, BP 5045, Montpellier, 34394, France
| | - Paco Bertolani
- Leverhulme Centre for Human Evolutionary Studies, University of Cambridge, Cambridge, CB2 1QH, UK
| | - Jef Dupain
- African Wildlife Foundation Conservation Centre, P.O. Box 310, 00502, Nairobi, Kenya
| | - Cintia Garai
- Lukuru Wildlife Research Foundation, Tshuapa-Lomami-Lualaba Project, BP 2012, Kinshasa, Democratic Republic of the Congo
| | - John A Hart
- Lukuru Wildlife Research Foundation, Tshuapa-Lomami-Lualaba Project, BP 2012, Kinshasa, Democratic Republic of the Congo
| | - Terese B Hart
- Lukuru Wildlife Research Foundation, Tshuapa-Lomami-Lualaba Project, BP 2012, Kinshasa, Democratic Republic of the Congo
| | - George M Shaw
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA.,Department of Microbiology, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Paul M Sharp
- Institute of Evolutionary Biology and Centre for Immunity, Infection and Evolution, University of Edinburgh, Edinburgh, EH9 3FL, UK
| | - Beatrice H Hahn
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA. .,Department of Microbiology, University of Pennsylvania, Philadelphia, PA, 19104, USA.
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18
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Sak B, Jandová A, Doležal K, Kváč M, Květoňová D, Hlásková L, Rost M, Olšanský M, Nurcahyo W, Foitová I. Effects of selected Indonesian plant extracts on E. cuniculi infection in vivo. Exp Parasitol 2017; 181:94-101. [PMID: 28779899 DOI: 10.1016/j.exppara.2017.07.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 06/01/2017] [Accepted: 07/31/2017] [Indexed: 11/25/2022]
Abstract
The present study was conducted to evaluate the methanolic extracts from several plant leaves widely used in traditional medicine to cure digestive tract disorders and in the self-medication of wild animals such as non-human primates, namely Archidendron fagifolium, Diospyros sumatrana, Shorea sumatrana, and Piper betle leaves, with regard to their antimicrosporidial activity against Encephalitozoon cuniculi in immunocompetent BALB/c mice determined using molecular detection of microsporidial DNA (qPCR) in various tissues and body fluids of infected, treated mice. Of the plant extracts tested, Diospyros sumatrana provided the most promising results, reducing spore shedding by 88% compared to untreated controls. Moreover, total burden per 1 g of tissue in the D. sumatrana extract-treated group reached 87% reduction compared to untreated controls, which was comparable to the effect of the standard drug, Albendazole. This data represents the baseline necessary for further research focused on determining the structure, activity and modes of action of the active compounds, mainly of D. sumatrana, enabling subsequent development of antimicrosporidial remedies.
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Affiliation(s)
- Bohumil Sak
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, České Budějovice, Czech Republic.
| | - Anna Jandová
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, České Budějovice, Czech Republic
| | - Karel Doležal
- Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc, Czech Republic; Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacky University & Institute of Experimental Botany, Czech Academy of Sciences, Olomouc, Czech Republic
| | - Martin Kváč
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, České Budějovice, Czech Republic; Faculty of Agriculture, University of South Bohemia in České Budějovice, České Budějovice, Czech Republic
| | - Dana Květoňová
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, České Budějovice, Czech Republic
| | - Lenka Hlásková
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, České Budějovice, Czech Republic
| | - Michael Rost
- Faculty of Economics, University of South Bohemia in České Budějovice, České Budějovice, Czech Republic
| | - Milan Olšanský
- UMI - Saving of Pongidae Foundation, Brno, Czech Republic
| | - Wisnu Nurcahyo
- Department of Parasitology, Faculty of Veterinary Medicine, Gadjah Mada University, Yogyakarta, Indonesia
| | - Ivona Foitová
- Department of Parasitology, Faculty of Veterinary Medicine, Gadjah Mada University, Yogyakarta, Indonesia; Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic
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19
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Longhini R, Lonni AA, Sereia AL, Krzyzaniak LM, Lopes GC, Mello JCPD. Trichilia catigua : therapeutic and cosmetic values. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2017. [DOI: 10.1016/j.bjp.2016.10.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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20
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Omosa LK, Midiwo JO, Masila VM, Gisacho BM, Munayi R, Chemutai KP, Elhaboob G, Saeed MEM, Hamdoun S, Kuete V, Efferth T. Cytotoxicity of 91 Kenyan indigenous medicinal plants towards human CCRF-CEM leukemia cells. JOURNAL OF ETHNOPHARMACOLOGY 2016; 179:177-96. [PMID: 26721219 DOI: 10.1016/j.jep.2015.12.028] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 12/19/2015] [Accepted: 12/20/2015] [Indexed: 05/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Plants from Kenyan flora are traditionally used against many ailments, including cancer and related diseases. Cancer is characterized as a condition with complex signs and symptoms. Recently there are recommendations that ethnopharmacological usages such as immune and skin disorders, inflammatory, infectious, parasitic and viral diseases should be taken into account when selecting plants that treat cancer. AIM The present study was aimed at investigating the cytotoxicity of a plethora of 145 plant parts from 91 medicinal plants, most of which are used in the management of cancer and related diseases by different communities in Kenya, against CCRF-CEM leukemia cell line. MATERIALS AND METHODS Extracts from different plant parts (leaves, stems, stem bark, roots, root barks, aerial parts and whole herb) were obtained by cold percolation using different solvent systems, such as (1:1v/v) dichloromethane (CH2Cl2) and n-hexane (1), methanol (MeOH) and CH2Cl2 (2); neat MeOH (3), 5% H2O in MeOH (4) and with ethanol (EtOH, 5); their cytotoxicities were determined using the resazurin reduction assay against CCRF-CEM cells. RESULTS At a single concentration of 10μg/mL, 12 out of 145 extracts exhibited more than 50% cell inhibition. These include samples from the root bark of Erythrina sacleuxii (extracted with 50% n-hexane-CH2Cl2), the leaves of Albizia gummifera, and Strychnos usambarensis, the stem bark of Zanthoxylum gilletii, Bridelia micrantha, Croton sylvaticus, and Albizia schimperiana; the root bark of Erythrina burttii and E. sacleuxii (extracted with 50% CH2Cl2-MeOH), the stem bark of B. micrantha and Z. gilletii (extracted using 5% MeOH-H2O) and from the berries of Solanum aculeastrum (extracted with neat EtOH). The EtOH extract of the berries of S. aculeastrum and A. schimperiana stem bark extract displayed the highest cytotoxicity towards leukemia CCRF-CEM cells, with IC50 values of 1.36 and 2.97µg/mL, respectively. Other extracts having good activities included the extracts of the stem barks of Z. gilletii and B. micrantha and leaves of S. usambarensis with IC50 values of 9.04, 9.43 and 11.09µg/mL, respectively. CONCLUSIONS The results of this study provided information related to the possible use of some Kenyam medicinal plants, and mostly S. aculeastrum, A. schimperiana, C. sylvaticus, Z. gilletii, B. micrantha and S. usambarensis in the treatment of leukemia. The reported data helped to authenticate the claimed traditional use of these plants. However, most plants are used in combination as traditional herbal concoctions. Hence, the cytotoxicity of corresponding plant combinations should be tested in vitro to authenticate the traditional medical practitioners actual practices.
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Affiliation(s)
- Leonidah K Omosa
- Department of Chemistry, School of Physical Sciences, University of Nairobi, P. O. Box 30197-00100, Nairobi, Kenya; Department of Pharmaceutical Biology, Institute of Pharmacy and Biochemistry, Johannes Gutenberg University, Staudinger Weg 5, 55128 Mainz, Germany.
| | - Jacob O Midiwo
- Department of Chemistry, School of Physical Sciences, University of Nairobi, P. O. Box 30197-00100, Nairobi, Kenya
| | - Veronica M Masila
- Department of Chemistry, School of Physical Sciences, University of Nairobi, P. O. Box 30197-00100, Nairobi, Kenya
| | - Boniface M Gisacho
- Department of Chemistry, School of Physical Sciences, University of Nairobi, P. O. Box 30197-00100, Nairobi, Kenya
| | - Renee Munayi
- Department of Chemistry, School of Physical Sciences, University of Nairobi, P. O. Box 30197-00100, Nairobi, Kenya
| | | | - Gihan Elhaboob
- Department of Biochemistry, Faculty of Medicine, University of Khartoum, P. O. Box 321-11115, Khartoum, Sudan
| | - Mohamed E M Saeed
- Department of Pharmaceutical Biology, Institute of Pharmacy and Biochemistry, Johannes Gutenberg University, Staudinger Weg 5, 55128 Mainz, Germany
| | - Sami Hamdoun
- Department of Pharmaceutical Biology, Institute of Pharmacy and Biochemistry, Johannes Gutenberg University, Staudinger Weg 5, 55128 Mainz, Germany
| | - Victor Kuete
- Department of Pharmaceutical Biology, Institute of Pharmacy and Biochemistry, Johannes Gutenberg University, Staudinger Weg 5, 55128 Mainz, Germany; Department of Biochemistry, Faculty of Science, University of Dschang, Dschang, Cameroon
| | - Thomas Efferth
- Department of Pharmaceutical Biology, Institute of Pharmacy and Biochemistry, Johannes Gutenberg University, Staudinger Weg 5, 55128 Mainz, Germany.
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Gustafsson E, Saint Jalme M, Kamoga D, Mugisha L, Snounou G, Bomsel MC, Krief S. Food Acceptance and Social Learning Opportunities in Semi-Free Eastern Chimpanzees (Pan troglodytes schweinfurthii). Ethology 2015. [DOI: 10.1111/eth.12458] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Erik Gustafsson
- Ménagerie du Jardin des Plantes; Département des Jardins Botaniques et Zoologiques; Muséum national d'Histoire naturelle; Paris France
- UMR 7204; CERSP; Muséum national d'Histoire naturelle; Paris France
- UMR 7206 Éco-anthropologie et Ethnobiologie; Muséum national d'Histoire naturelle; Paris France
- Department of Psychology; Centre for Situated Action and Communication; University of Portsmouth; Portsmouth UK
| | - Michel Saint Jalme
- Ménagerie du Jardin des Plantes; Département des Jardins Botaniques et Zoologiques; Muséum national d'Histoire naturelle; Paris France
- UMR 7204; CERSP; Muséum national d'Histoire naturelle; Paris France
| | - Dennis Kamoga
- Department of Botany; Makerere University; Kampala Uganda
| | | | - Georges Snounou
- INSERM UMRS 945; Paris France
- Université Pierre & Marie Curie; Faculté de Médecine Pitié-Salpêtrière; Paris France
| | - Marie-Claude Bomsel
- Ménagerie du Jardin des Plantes; Département des Jardins Botaniques et Zoologiques; Muséum national d'Histoire naturelle; Paris France
| | - Sabrina Krief
- UMR 7206 Éco-anthropologie et Ethnobiologie; Muséum national d'Histoire naturelle; Paris France
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22
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Atanasov AG, Waltenberger B, Pferschy-Wenzig EM, Linder T, Wawrosch C, Uhrin P, Temml V, Wang L, Schwaiger S, Heiss EH, Rollinger JM, Schuster D, Breuss JM, Bochkov V, Mihovilovic MD, Kopp B, Bauer R, Dirsch VM, Stuppner H. Discovery and resupply of pharmacologically active plant-derived natural products: A review. Biotechnol Adv 2015; 33:1582-1614. [PMID: 26281720 PMCID: PMC4748402 DOI: 10.1016/j.biotechadv.2015.08.001] [Citation(s) in RCA: 1335] [Impact Index Per Article: 148.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 07/16/2015] [Accepted: 08/07/2015] [Indexed: 01/01/2023]
Abstract
Medicinal plants have historically proven their value as a source of molecules with therapeutic potential, and nowadays still represent an important pool for the identification of novel drug leads. In the past decades, pharmaceutical industry focused mainly on libraries of synthetic compounds as drug discovery source. They are comparably easy to produce and resupply, and demonstrate good compatibility with established high throughput screening (HTS) platforms. However, at the same time there has been a declining trend in the number of new drugs reaching the market, raising renewed scientific interest in drug discovery from natural sources, despite of its known challenges. In this survey, a brief outline of historical development is provided together with a comprehensive overview of used approaches and recent developments relevant to plant-derived natural product drug discovery. Associated challenges and major strengths of natural product-based drug discovery are critically discussed. A snapshot of the advanced plant-derived natural products that are currently in actively recruiting clinical trials is also presented. Importantly, the transition of a natural compound from a "screening hit" through a "drug lead" to a "marketed drug" is associated with increasingly challenging demands for compound amount, which often cannot be met by re-isolation from the respective plant sources. In this regard, existing alternatives for resupply are also discussed, including different biotechnology approaches and total organic synthesis. While the intrinsic complexity of natural product-based drug discovery necessitates highly integrated interdisciplinary approaches, the reviewed scientific developments, recent technological advances, and research trends clearly indicate that natural products will be among the most important sources of new drugs also in the future.
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Affiliation(s)
- Atanas G. Atanasov
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Birgit Waltenberger
- Institute of Pharmacy/Pharmacognosy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Eva-Maria Pferschy-Wenzig
- Institute of Pharmaceutical Sciences, Department of Pharmacognosy, University of Graz, Universitätsplatz 4/I, 8010 Graz, Austria
| | - Thomas Linder
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163-OC, 1060 Vienna, Austria
| | - Christoph Wawrosch
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Pavel Uhrin
- Institute of Vascular Biology and Thrombosis Research, Center of Physiology and Pharmacology, Medical University of Vienna, 1090 Vienna, Austria
| | - Veronika Temml
- Institute of Pharmacy/Pharmaceutical Chemistry and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Limei Wang
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Stefan Schwaiger
- Institute of Pharmacy/Pharmacognosy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Elke H. Heiss
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Judith M. Rollinger
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
- Institute of Pharmacy/Pharmacognosy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Daniela Schuster
- Institute of Pharmacy/Pharmaceutical Chemistry and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Johannes M. Breuss
- Institute of Vascular Biology and Thrombosis Research, Center of Physiology and Pharmacology, Medical University of Vienna, 1090 Vienna, Austria
| | - Valery Bochkov
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Chemistry, University of Graz, Humboldtstrasse 46/III, 8010 Graz, Austria
| | - Marko D. Mihovilovic
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163-OC, 1060 Vienna, Austria
| | - Brigitte Kopp
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Rudolf Bauer
- Institute of Pharmaceutical Sciences, Department of Pharmacognosy, University of Graz, Universitätsplatz 4/I, 8010 Graz, Austria
| | - Verena M. Dirsch
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Hermann Stuppner
- Institute of Pharmacy/Pharmacognosy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
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Narat V, Pennec F, Simmen B, Ngawolo JCB, Krief S. Bonobo habituation in a forest-savanna mosaic habitat: influence of ape species, habitat type, and sociocultural context. Primates 2015; 56:339-49. [PMID: 26159325 DOI: 10.1007/s10329-015-0476-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 06/27/2015] [Indexed: 11/25/2022]
Abstract
Habituation is the term used to describe acceptance by wild animals of a human observer as a neutral element in their environment. Among primates, the process takes from a few days for Galago spp. to several years for African apes. There are also intraspecies differences reflecting differences in habitat, home range, and ape-human relationship history. Here, we present the first study of the process of bonobo habituation in a fragmented habitat, a forest-savanna mosaic in the community-based conservation area led by the Congolese nongovernmental organization Mbou-Mon-Tour, Democratic Republic of the Congo. In this area, local people use the forest almost every day for traditional activities but avoid bonobos because of a traditional taboo. Because very few flight reactions were observed during habituation, we focused on quantitative parameters to assess the development of ape tolerance and of the tracking efficiency of observer teams. During the 18-month study period (May 2012-October 2013), 4043 h (319 days) were spent in the forest and bonobos were observed for a total of 405 h (196 contacts on 134 days). The average contact duration was stable over time (124 min), but the minimal distance during a contact decreased with habituation effort. Moreover, bonobo location and tracking efficiency, daily ratio of contact time to habituation effort, and the number of observations at ground level were positively correlated with habituation effort. Our observations suggest that bonobos become habituated relatively rapidly. These results are discussed in relation to the habitat type, ape species, and the local sociocultural context of villagers. The habituation process involves changes in ape behavior toward observers and also more complex interactions concerning the ecosystem, including the building of an efficient local team. Before starting a habituation process, knowledge of the human sociocultural context is essential to assess the balance between risks and benefits.
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Affiliation(s)
- Victor Narat
- Muséum National d'Histoire Naturelle, UMR7206 (MNHN-CNRS-Paris7) Eco-anthropologie et Ethnobiologie, Site du Musée de l'Homme, 17 Place du Trocadéro, 75016, Paris Cedex, France.
| | - Flora Pennec
- Muséum National d'Histoire Naturelle, UMR7206 (MNHN-CNRS-Paris7) Eco-anthropologie et Ethnobiologie, Site du Musée de l'Homme, 17 Place du Trocadéro, 75016, Paris Cedex, France
| | - Bruno Simmen
- Muséum National d'Histoire Naturelle, UMR7206 (MNHN-CNRS-Paris7) Eco-anthropologie et Ethnobiologie, 1 Avenue du Petit Château, 91800, Brunoy, France
| | | | - Sabrina Krief
- Muséum National d'Histoire Naturelle, UMR7206 (MNHN-CNRS-Paris7) Eco-anthropologie et Ethnobiologie, Site du Musée de l'Homme, 17 Place du Trocadéro, 75016, Paris Cedex, France.,Projet Pour la Conservation des Grands Singes, 3 Rue Titien, 75013, Paris, France
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Masi S, Mundry R, Ortmann S, Cipolletta C, Boitani L, Robbins MM. The Influence of Seasonal Frugivory on Nutrient and Energy Intake in Wild Western Gorillas. PLoS One 2015; 10:e0129254. [PMID: 26154509 PMCID: PMC4495928 DOI: 10.1371/journal.pone.0129254] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Accepted: 05/06/2015] [Indexed: 11/19/2022] Open
Abstract
The daily energy requirements of animals are determined by a combination of physical and physiological factors, but food availability may challenge the capacity to meet nutritional needs. Western gorillas (Gorilla gorilla) are an interesting model for investigating this topic because they are folivore-frugivores that adjust their diet and activities to seasonal variation in fruit availability. Observations of one habituated group of western gorillas in Bai-Hokou, Central African Republic (December 2004-December 2005) were used to examine seasonal variation in diet quality and nutritional intake. We tested if during the high fruit season the food consumed by western gorillas was higher in quality (higher in energy, sugar, fat but lower in fibre and antifeedants) than during the low fruit season. Food consumed during the high fruit season was higher in digestible energy, but not any other macronutrients. Second, we investigated whether the gorillas increased their daily intake of carbohydrates, metabolizable energy (KCal/g OM), or other nutrients during the high fruit season. Intake of dry matter, fibers, fat, protein and the majority of minerals and phenols decreased with increased frugivory and there was some indication of seasonal variation in intake of energy (KCal/g OM), tannins, protein/fiber ratio, and iron. Intake of non-structural carbohydrates and sugars was not influenced by fruit availability. Gorillas are probably able to extract large quantities of energy via fermentation since they rely on proteinaceous leaves during the low fruit season. Macronutrients and micronutrients, but not digestible energy, may be limited for them during times of low fruit availability because they are hind-gut fermenters. We discuss the advantages of seasonal frugivores having large dietary breath and flexibility, significant characteristics to consider in the conservation strategies of endangered species.
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Affiliation(s)
- Shelly Masi
- Max Planck Institute for Evolutionary Anthropology, D-04103, Leipzig, Germany
- Department of Animal and Human Biology, University of Rome “La Sapienza”, 00185, Rome, Italy
| | - Roger Mundry
- Max Planck Institute for Evolutionary Anthropology, D-04103, Leipzig, Germany
| | - Sylvia Ortmann
- RG Evolutionary Ecology, Leibniz-Institute for Zoo and Wildlife Research, D-10315, Berlin, Germany
| | | | - Luigi Boitani
- Department of Animal and Human Biology, University of Rome “La Sapienza”, 00185, Rome, Italy
| | - Martha M. Robbins
- Max Planck Institute for Evolutionary Anthropology, D-04103, Leipzig, Germany
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Paritala V, Chiruvella KK, Thammineni C, Ghanta RG, Mohammed A. Phytochemicals and antimicrobial potentials of mahogany family. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2015. [DOI: 10.1016/j.bjp.2014.11.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Krief S, Cibot M, Bortolamiol S, Seguya A, Krief JM, Masi S. Wild chimpanzees on the edge: nocturnal activities in croplands. PLoS One 2014; 9:e109925. [PMID: 25338066 PMCID: PMC4206271 DOI: 10.1371/journal.pone.0109925] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Accepted: 09/04/2014] [Indexed: 11/18/2022] Open
Abstract
In a rapidly changing landscape highly impacted by anthropogenic activities, the great apes are facing new challenges to coexist with humans. For chimpanzee communities inhabiting encroached territories, not bordered by rival conspecifics but by human agricultural fields, such boundaries are risky areas. To investigate the hypothesis that they use specific strategies for incursions out of the forest into maize fields to prevent the risk of detection by humans guarding their field, we carried out video recordings of chimpanzees at the edge of the forest bordered by a maize plantation in Kibale National Park, Uganda. Contrary to our expectations, large parties are engaged in crop-raids, including vulnerable individuals such as females with clinging infants. More surprisingly chimpanzees were crop-raiding during the night. They also stayed longer in the maize field and presented few signs of vigilance and anxiety during these nocturnal crop-raids. While nocturnal activities of chimpanzees have been reported during full moon periods, this is the first record of frequent and repeated nocturnal activities after twilight, in darkness. Habitat destruction may have promoted behavioural adjustments such as nocturnal exploitation of open croplands.
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Affiliation(s)
- Sabrina Krief
- UMR 7206 CNRS/MNHN/P7, Eco-anthropologie et d’ethnobiologie, Hommes, Natures, Sociétés, Museum national d’histoire naturelle, Paris, France
- Projet pour la conservation des grands singes, Kibale National Park, Fort Portal, Uganda
- * E-mail:
| | - Marie Cibot
- UMR 7206 CNRS/MNHN/P7, Eco-anthropologie et d’ethnobiologie, Hommes, Natures, Sociétés, Museum national d’histoire naturelle, Paris, France
- Projet pour la conservation des grands singes, Kibale National Park, Fort Portal, Uganda
- UMR 7179 CNRS/MNHN, Mécanismes adaptatifs: des organismes aux communautés, Ecologie et de gestion de la biodiversité, Muséum national d’histoire naturelle, Paris, France
| | - Sarah Bortolamiol
- UMR 7206 CNRS/MNHN/P7, Eco-anthropologie et d’ethnobiologie, Hommes, Natures, Sociétés, Museum national d’histoire naturelle, Paris, France
- Projet pour la conservation des grands singes, Kibale National Park, Fort Portal, Uganda
- UMR 7533, Dynamiques Sociales et Recomposition des Espaces, Paris Diderot University, Paris, France
| | | | - Jean-Michel Krief
- Projet pour la conservation des grands singes, Kibale National Park, Fort Portal, Uganda
| | - Shelly Masi
- UMR 7206 CNRS/MNHN/P7, Eco-anthropologie et d’ethnobiologie, Hommes, Natures, Sociétés, Museum national d’histoire naturelle, Paris, France
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Response to bitter substances in primates: Roles of diet tendency and weaning age. COGNITIVE AFFECTIVE & BEHAVIORAL NEUROSCIENCE 2013; 13:916-29. [DOI: 10.3758/s13415-013-0171-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Hubert DJ, Céline N, Michel N, Gogulamudi VR, Florence NT, Johnson BN, Bonaventure NT, Singh IP, Sehgal R. In vitro leishmanicidal activity of some Cameroonian medicinal plants. Exp Parasitol 2013; 134:304-8. [PMID: 23562881 DOI: 10.1016/j.exppara.2013.03.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Revised: 02/22/2013] [Accepted: 03/17/2013] [Indexed: 10/27/2022]
Abstract
Eleven plants used in the Cameroonian traditional medicine for the treatment of some parasitic infections were tested for their activity on the promastigote form of Leishmania donovani. After incubation with different plant extracts at doses of 1600, 800, 400 and 200 microgram/mL, the evaluation of the cell viability was done by the trypan blue exclusion technique and by flow cytometry. This study shows that 48 h after incubation of promastigotes with plant extract, Solanocia mannii and Solanum torvum significantly inhibited the proliferation of promastigotes in culture with IC50 of 60.78±5.05 and 96.08±4.39 using the trypan blue exclusion technique. In addition, IC50 of 43.91±6.49 and 86.13±4.30 were obtained using the flow cytometry technique. Furthermore, 24 h after incubation of promastigotes with the Solanocia mannii and Solanum torvum, there was significant disruption of their long spindle shaped bodies. The results of this study support the popular uses of these plants for the treatment of some parasitic infections in Cameroonian folk medicine.
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Affiliation(s)
- Donfack J Hubert
- Department of Biomedical Sciences, Faculty of Science P.O. Box 067, University of Dschang, Cameroon.
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Huffman MA, Nakagawa N, Go Y, Imai H, Tomonaga M. Primate Self-medication and the Treatment of Parasite Infection. SPRINGERBRIEFS IN BIOLOGY 2013. [DOI: 10.1007/978-4-431-54153-0_2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Masi S, Chauffour S, Bain O, Todd A, Guillot J, Krief S. Seasonal effects on great ape health: a case study of wild chimpanzees and Western gorillas. PLoS One 2012; 7:e49805. [PMID: 23227152 PMCID: PMC3515584 DOI: 10.1371/journal.pone.0049805] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2012] [Accepted: 10/16/2012] [Indexed: 01/02/2023] Open
Abstract
Among factors affecting animal health, environmental influences may directly or indirectly impact host nutritional condition, fecundity, and their degree of parasitism. Our closest relatives, the great apes, are all endangered and particularly sensitive to infectious diseases. Both chimpanzees and western gorillas experience large seasonal variations in fruit availability but only western gorillas accordingly show large changes in their degree of frugivory. The aim of this study is to investigate and compare factors affecting health (through records of clinical signs, urine, and faecal samples) of habituated wild ape populations: a community (N = 46 individuals) of chimpanzees (Pan troglodytes) in Kanyawara, Kibale National Park (Uganda), and a western gorilla (G. gorilla) group (N = 13) in Bai Hokou in the Dzanga-Ndoki National Park (Central African Republic). Ape health monitoring was carried out in the wet and dry seasons (chimpanzees: July-December 2006; gorillas: April-July 2008 and December 2008-February 2009). Compared to chimpanzees, western gorillas were shown to have marginally greater parasite diversity, higher prevalence and intensity of both parasite and urine infections, and lower occurrence of diarrhea and wounds. Parasite infections (prevalence and load), but not abnormal urine parameters, were significantly higher during the dry season of the study period for western gorillas, who thus appeared more affected by the large temporal changes in the environment in comparison to chimpanzees. Infant gorillas were the most susceptible among all the age/sex classes (of both apes) having much more intense infections and urine blood concentrations, again during the dry season. Long term studies are needed to confirm the influence of seasonal factors on health and parasitism of these great apes. However, this study suggest climate change and forest fragmentation leading to potentially larger seasonal fluctuations of the environment may affect patterns of ape parasitism and further exacerbate health impacts on great ape populations that live in highly seasonal habitats.
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Affiliation(s)
- Shelly Masi
- Muséum National d'Histoire Naturelle, Département Hommes, Natures, Sociétés UMR 7206 Éco-Anthropologie et Ethnobiologie, Paris, France.
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Krief S, Levrero F, Krief JM, Thanapongpichat S, Imwong M, Snounou G, Kasenene JM, Cibot M, Gantier JC. Investigations on anopheline mosquitoes close to the nest sites of chimpanzees subject to malaria infection in Ugandan highlands. Malar J 2012; 11:116. [PMID: 22510395 PMCID: PMC3515334 DOI: 10.1186/1475-2875-11-116] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Accepted: 04/06/2012] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Malaria parasites (Plasmodium sp.), including new species, have recently been discovered as low grade mixed infections in three wild chimpanzees (Pan troglodytes schweinfurthii) sampled randomly in Kibale National Park, Uganda. This suggested a high prevalence of malaria infection in this community. The clinical course of malaria in chimpanzees and the species of the vectors that transmit their parasites are not known. The fact that these apes display a specific behaviour in which they consume plant parts of low nutritional value but that contain compounds with anti-malarial properties suggests that the apes health might be affected by the parasite. The avoidance of the night-biting anopheline mosquitoes is another potential behavioural adaptation that would lead to a decrease in the number of infectious bites and consequently malaria. METHODS Mosquitoes were collected over two years using suction-light traps and yeast-generated CO(2) traps at the nesting and the feeding sites of two chimpanzee communities in Kibale National Park. The species of the female Anopheles caught were then determined and the presence of Plasmodium was sought in these insects by PCR amplification. RESULTS The mosquito catches yielded a total of 309 female Anopheles specimens, the only known vectors of malaria parasites of mammalians. These specimens belonged to 10 species, of which Anopheles implexus, Anopheles vinckei and Anopheles demeilloni dominated. Sensitive DNA amplification techniques failed to detect any Plasmodium-positive Anopheles specimens. Humidity and trap height influenced the Anopheles capture success, and there was a negative correlation between nest numbers and mosquito abundance. The anopheline mosquitoes were also less diverse and numerous in sites where chimpanzees were nesting as compared to those where they were feeding. CONCLUSIONS These observations suggest that the sites where chimpanzees build their nests every night might be selected, at least in part, in order to minimize contact with anopheline mosquitoes, which might lead to a reduced risk in acquiring malaria infections.
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Affiliation(s)
- Sabrina Krief
- UMR 7206- Eco-anthropologie et ethnobiologie, Musum National dHistoire Naturelle, Paris, France
- Projet pour la Conservation des Grands Singes, Paris, France
| | - Florence Levrero
- Universit de Saint-Etienne, Equipe de Neuro-Ethologie Sensorielle/CNPS, CNRS UMR 8195. Centre National de la Recherche Scientifique, Centre de Neurosciences Paris-Sud, UMR 8195, Saint Etienne, France
| | | | | | - Mallika Imwong
- Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Georges Snounou
- Institut National de la Sant et de la Recherche Mdicale, Unit Mixte de Recherche, S 945 Paris, France
- Universit Pierre & Marie Curie, Facult de Mdecine Piti-Salptrire, Paris, France
| | - John M Kasenene
- Makerere University Biological Field Station, Fort Portal, Uganda
| | - Marie Cibot
- UMR 7206- Eco-anthropologie et ethnobiologie, Musum National dHistoire Naturelle, Paris, France
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Norscia I, Ramanamanjato JB, Ganzhorn JU. Feeding Patterns and Dietary Profile of Nocturnal Southern Woolly Lemurs (Avahi meridionalis) in Southeast Madagascar. INT J PRIMATOL 2011. [DOI: 10.1007/s10764-011-9562-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Masi S, Gustafsson E, Saint Jalme M, Narat V, Todd A, Bomsel MC, Krief S. Unusual feeding behavior in wild great apes, a window to understand origins of self-medication in humans: role of sociality and physiology on learning process. Physiol Behav 2011; 105:337-49. [PMID: 21888922 DOI: 10.1016/j.physbeh.2011.08.012] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Revised: 08/04/2011] [Accepted: 08/09/2011] [Indexed: 11/16/2022]
Abstract
Certain toxic plants are beneficial for health if small amounts are ingested infrequently and in a specific context of illness. Among our closest living relatives, chimpanzees are found to consume plants with pharmacological properties. Providing insight on the origins of human self-medication, this study investigates the role social systems and physiology (namely gut specialization) play on learning mechanisms involved in the consumption of unusual and potentially bioactive foods by two great ape species. We collected data from a community of 41-44 wild chimpanzees in Uganda (11 months, 2008), and a group of 11-13 wild western gorillas in Central African Republic (10 months, 2008-2009). During feeding, we recorded food consumed, its availability, and social interactions (including observers watching conspecifics and the observers' subsequent activity). Unusual food consumption in chimpanzees was twice higher than in gorillas. Additionally chimpanzees relied more on social information with vertical knowledge transmission on unusual foods by continually acquiring information during their life through mostly observing the fittest (pre-senescent) adults. In contrast, in gorillas observational learning primarily occurred between related immatures, showing instead the importance of horizontal knowledge transmission. As chimpanzees' guts are physiologically less specialized than gorillas (more capable of detoxifying harmful compounds), unusual-food consumption may be more risky for chimpanzees and linked to reasons other than nutrition (like self-medication). Our results show that differences in sociality and physiology between the two species may influence mechanisms that discriminate between plants for nutrition and plants with potential therapeutic dietary components. We conclude that self-medication may have appeared in our ancestors in association with high social tolerance and lack of herbivorous gut specialization.
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Affiliation(s)
- Shelly Masi
- Muséum national d'histoire naturelle, Département Hommes, Natures, Sociétés UMR 7206 Éco-anthropologie et Ethnobiologie, CP 135, 43 rue Buffon, 75 005 Paris, France.
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Teke GN, Kuiate JR, Kueté V, Teponno RB, Tapondjou LA, Vilarem G. Antidiarrheal activity of extracts and compound from Trilepisium madagascariense stem bark. Indian J Pharmacol 2011; 42:157-63. [PMID: 20871767 PMCID: PMC2937317 DOI: 10.4103/0253-7613.66839] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2010] [Revised: 05/13/2010] [Accepted: 06/09/2010] [Indexed: 11/19/2022] Open
Abstract
Objective: The present study was performed to evaluate the preventive and curative antidiarrheal effects of the methanol extract, fractions and compound from the stem bark of Trilepisium madagascariense in rats. Materials and Methods: The methanol extract from the stem bark of T. madagascariense, its fractions (n-hexane, ethyl acetate, n-butanol and aqueous residue) and compound (obtained from further column chromatography of the ethyl acetate fraction) were evaluated for the antidiarrheal activity in rats. These test samples (at 100, 200 and 400 mg/kg for the extract and fractions and 2.5 mg/kg for compound) were assayed on the latent periods, purging indices and fecal frequencies in castor oil-induced diarrhea. Gastrointestinal transit and castor oil-induced enteropooling assays were conducted. Shigella-induced diarrhea was assayed. Blood chemistry and fecal Shigella load were examined. Results: The fractionation of the ethyl acetate fraction from the methanol extract of T. madagascariense afforded a known compound [isoliquiritigenin (1)]. Compound 1 increased the latent period of diarrhea induction (179.40 min) compared to the saline control (60.80 min). The purging indices, fecal frequencies and intestinal enteropooling decreased with an increase in the dose of test samples. The blood cell counts, sera creatinine and fecal Shigella load decreased significantly (P ≤ 0.05) in the plant extract-treated rats compared to the saline control. Conclusion: The results of our study, being reported for the first time, provide clear evidence that the methanol extract, fractions and isoliquiritigenin from T. madagascariense stem bark possess antidiarrheal activities.
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Affiliation(s)
- Gerald Ngo Teke
- Laboratory of Microbiology and Antimicrobial Substances, Faculty of Sciences, University of Dschang, PO Box 67 Dschang, Cameroon
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Kemgne EAM, Mbacham WF, Boyom FF, Zollo PHA, Tsamo E, Rosenthal PJ. In vitro sensitivity of Plasmodium falciparum field isolates to extracts from Cameroonian Annonaceae plants. Parasitol Res 2011; 110:109-17. [DOI: 10.1007/s00436-011-2456-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2011] [Accepted: 05/11/2011] [Indexed: 11/24/2022]
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Gustafsson E, Krief S, Saint Jalme M. Neophobia and learning mechanisms: how captive orangutans discover medicinal plants. ACTA ACUST UNITED AC 2011; 82:45-55. [PMID: 21525772 DOI: 10.1159/000326796] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2010] [Accepted: 02/16/2011] [Indexed: 11/19/2022]
Abstract
Great apes sometimes feed on items of low nutritional value with bioactive secondary compounds. These molecules may be toxic and neophobia is presumed to be an essential factor in avoiding the ingestion of noxious items. The aim of this study is to investigate, in captive orangutans, individual and social learning involved in the discovery and ingestion of new items. We presented novel aromatic plants - 11 fresh plants and 4 infused plants - to 4 captive weaned Bornean orangutans, both under isolated and group conditions, and recorded their behaviour and interactions between group members. All animals tasted by nibbling or ingested most of the plants presented. Regardless of the experimental condition, individual responses did not vary visibly across the sessions, despite numerous close observations, and food transfers between individuals were observed. Our results suggest that a low level of neophobia and a strong propensity to look to conspecifics for information allow Bornean orangutans to expand their diet after weaning. Our results also provide some evidence that olfaction is a key sense in determining food edibility based on previous experience.
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Affiliation(s)
- Erik Gustafsson
- Muséum National d'Histoire Naturelle, Paris, France. gustafsson @ mnhn.fr
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MacIntosh AJJ, Huffman MA. Topic 3: Toward Understanding the Role of Diet in Host–Parasite Interactions: The Case for Japanese Macaques. THE JAPANESE MACAQUES 2010. [DOI: 10.1007/978-4-431-53886-8_15] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Boyom FF, Kemgne EM, Tepongning R, Ngouana V, Mbacham WF, Tsamo E, Zollo PHA, Gut J, Rosenthal PJ. Antiplasmodial activity of extracts from seven medicinal plants used in malaria treatment in Cameroon. JOURNAL OF ETHNOPHARMACOLOGY 2009; 123:483-488. [PMID: 19442463 DOI: 10.1016/j.jep.2009.03.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2008] [Revised: 02/19/2009] [Accepted: 03/05/2009] [Indexed: 05/27/2023]
Abstract
AIM OF THE STUDY In a search for new plant-derived biologically active compounds against malaria parasites, we have carried out an ethnopharmacological study to evaluate the susceptibility of cultured Plasmodium falciparum to extracts and fractions from seven Cameroonian medicinal plants used in malaria treatment. We have also explored the inhibition of the Plasmodium falciparum cysteine protease Falcipain-2. MATERIALS AND METHODS Plant materials were extracted by maceration in organic solvents, and subsequently partitioned or fractionated to afford test fractions. The susceptibility of erythrocytes and the W2 strain of Plasmodium falciparum to plant extracts was evaluated in culture. In addition, the ability of annonaceous extracts to inhibit recombinant cysteine protease Falcipain-2 was also assessed. RESULTS AND DISCUSSION The extracts showed no toxicity against erythrocytes. The majority of plant extracts were highly active against Plasmodium falciparumin vitro, with IC(50) values lower than 5 microg/ml. Annonaceous extracts (acetogenin-rich fractions and interface precipitates) exhibited the highest potency. Some of these extracts exhibited modest inhibition of Falcipain-2. CONCLUSION These results support continued investigation of components of traditional medicines as potential new antimalarial agents.
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Affiliation(s)
- Fabrice Fekam Boyom
- Laboratory of Phytobiochemistry and Medicinal Plants Study, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon.
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Forbey JS, Harvey AL, Huffman MA, Provenza FD, Sullivan R, Tasdemir D. Exploitation of secondary metabolites by animals: A response to homeostatic challenges. Integr Comp Biol 2009; 49:314-28. [PMID: 21665822 DOI: 10.1093/icb/icp046] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
We propose that the exploitation of the bioactive properties of secondary metabolites (SMs) by animals can provide a "treatment" against various challenges that perturb homeostasis in animals. The unified theoretical framework for the exploitation of SMs by animals is based on a synthesis of research from a wide range of fields and although it is focused on providing generalized predictions for herbivores that exploit SMs of plants, predictions can be applied to understand the exploitation of SMs by many animals. In this review, we argue that the probability of SM exploitation is determined by the relative difference between the cost of a homeostatic challenge and the toxicity of the SM and we provide various predictions that can be made when considering behavior under a homeostatic perspective. The notion that animals experience and respond to costly challenges by exploiting therapeutic SMs provides a relatively novel perspective to explain foraging behavior in herbivores, specifically, and behavior of animals in general. We provide evidence that animals can exploit the biological activity of SMs to mitigate the costs of infection by parasites, enhance reproduction, moderate thermoregulation, avoid predation, and increase alertness. We stress that a better understanding of animal behavior requires that ecologists look beyond their biases that SMs elicit punishment and consider a broader view of avoidance or selection of SMs relative to the homeostatic state. Finally, we explain how understanding exploitation of SMs by animals could be applied to advance practices of animal management and lead to discovery of new drugs.
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Affiliation(s)
- Jennifer S Forbey
- Department of Biological Sciences, Boise State University, Boise, ID 83725, USA.
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Vogel ER, van Woerden JT, Lucas PW, Utami Atmoko SS, van Schaik CP, Dominy NJ. Functional ecology and evolution of hominoid molar enamel thickness: Pan troglodytes schweinfurthii and Pongo pygmaeus wurmbii. J Hum Evol 2008; 55:60-74. [DOI: 10.1016/j.jhevol.2007.12.005] [Citation(s) in RCA: 132] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2007] [Revised: 11/19/2007] [Accepted: 12/17/2007] [Indexed: 10/22/2022]
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Krief S, Jamart A, Mahé S, Leendertz FH, Mätz-Rensing K, Crespeau F, Bain O, Guillot J. Clinical and pathologic manifestation of oesophagostomosis in African great apes: does self-medication in wild apes influence disease progression? J Med Primatol 2008; 37:188-95. [PMID: 18331558 DOI: 10.1111/j.1600-0684.2008.00285.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Nodular worms (Oesophagostomum spp.) are common intestinal parasites found in cattle, pig, and primates including humans. In human, they are responsible for serious clinical disease called oesophagostomosis resulting from the formation of granulomas, caseous lesions or abscesses in intestinal walls. In wild great apes, the fecal prevalence of this parasite is high, but little information is available concerning the clinical signs and lesions associated. In the present study, we describe six cases of multinodular oesophagostomosis in free-ranging and ex-captive chimpanzees and captive gorillas caused by Oesophagostomum stephanostomum. While severe clinical signs associated with this infection were observed in great apes raised in sanctuaries, nodules found in wild chimpanzees do not seem to affect their health status. One hypothesis to explain this difference would be that in wild chimpanzees, access to natural environment and behavior such as rough leaves swallowing combined with ingestion of plants having pharmacological properties would prevent severe infection and decrease potential symptoms.
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Affiliation(s)
- Sabrina Krief
- USM 104 Eco-anthropologie et Ethnobiologie, Département Hommes, Natures, Sociétés, Muséum National d'Histoire Naturelle, Paris, France.
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Klein N, Fröhlich F, Krief S. Geophagy: soil consumption enhances the bioactivities of plants eaten by chimpanzees. Naturwissenschaften 2008; 95:325-31. [DOI: 10.1007/s00114-007-0333-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2007] [Revised: 11/08/2007] [Accepted: 11/17/2007] [Indexed: 11/30/2022]
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Potterat O, Hamburger M. Drug discovery and development with plant-derived compounds. PROGRESS IN DRUG RESEARCH. FORTSCHRITTE DER ARZNEIMITTELFORSCHUNG. PROGRES DES RECHERCHES PHARMACEUTIQUES 2007; 65:45, 47-118. [PMID: 18084913 DOI: 10.1007/978-3-7643-8117-2_2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An overview is given on current efforts in drug development based on plant-derived natural products. Emphasis is on projects which have advanced to clinical development. Therapeutic areas covered include cancer, viral infections including HIV, malaria, inflammatory diseases, nociception and vaccine adjuvants, metabolic disorders, and neurodegenerative diseases. Aspects which are specific to plant-based drug discovery and development are also addressed, such as supply issues in the commercial development, and the Convention on Biological Diversity.
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Affiliation(s)
- Olivier Potterat
- University of Basel, Institute of Pharmaceutical Biology, Klingelbergstrasse 50, 4056 Basel, Switzerland
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Meunier H, Petit O, Deneubourg JL. Resource influence on the form of fur rubbing behaviour in white-faced capuchins. Behav Processes 2007; 77:320-6. [PMID: 17766057 DOI: 10.1016/j.beproc.2007.07.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2006] [Revised: 07/24/2007] [Accepted: 07/25/2007] [Indexed: 11/17/2022]
Abstract
Self-medicative behaviours have been largely documented in vertebrates and, in particular, the use of plants for pharmacological purposes has been mainly reported in primates. White-faced capuchins are known to rub specifically chosen plants and other substances on their fur. To better understand the mechanisms underlying this phenomenon and investigate the influence of different plant resources on the form of fur rubbing activity, we conducted experiments using different randomly selected plant items: oranges and onions. We found that (1) capuchins showed different degrees of interest in the materials used to fur rub; (2) the mean group dynamics differ drastically according to the resource supplied; and (3) individuals present strong differences in their social behaviour, i.e. they spent more or less time fur rubbing in spatial proximity of conspecifics according to the material used for fur rubbing. We propose hypotheses on possible proximal causes for these differences and highlight that some precautions have to be taken in behavioural studies including only one resource type.
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Affiliation(s)
- H Meunier
- Ethologie des Primates, IPHC, DEPE, UMR 7178 CNRS-ULP, 23 rue Becquerel, 67087 Strasbourg cedex 2, France.
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