1
|
Leung AKC, Barankin B, Lam JM, Leong KF, Hon KL. Tinea pedis: an updated review. Drugs Context 2023; 12:2023-5-1. [PMID: 37415917 PMCID: PMC10321471 DOI: 10.7573/dic.2023-5-1] [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: 05/06/2023] [Accepted: 06/02/2023] [Indexed: 07/08/2023] Open
Abstract
Background Tinea pedis is one of the most common superficial fungal infections of the skin, with various clinical manifestations. This review aims to familiarize physicians with the clinical features, diagnosis and management of tinea pedis. Methods A search was conducted in April 2023 in PubMed Clinical Queries using the key terms 'tinea pedis' OR 'athlete's foot'. The search strategy included all clinical trials, observational studies and reviews published in English within the past 10 years. Results Tinea pedis is most often caused by Trichophyton rubrum and Trichophyton interdigitale. It is estimated that approximately 3% of the world population have tinea pedis. The prevalence is higher in adolescents and adults than in children. The peak age incidence is between 16 and 45 years of age. Tinea pedis is more common amongst males than females. Transmission amongst family members is the most common route, and transmission can also occur through indirect contact with contaminated belongings of the affected patient. Three main clinical forms of tinea pedis are recognized: interdigital, hyperkeratotic (moccasin-type) and vesiculobullous (inflammatory). The accuracy of clinical diagnosis of tinea pedis is low. A KOH wet-mount examination of skin scrapings of the active border of the lesion is recommended as a point-of-care testing. The diagnosis can be confirmed, if necessary, by fungal culture or culture-independent molecular tools of skin scrapings. Superficial or localized tinea pedis usually responds to topical antifungal therapy. Oral antifungal therapy should be reserved for severe disease, failed topical antifungal therapy, concomitant presence of onychomycosis or in immunocompromised patients. Conclusion Topical antifungal therapy (once to twice daily for 1-6 weeks) is the mainstay of treatment for superficial or localized tinea pedis. Examples of topical antifungal agents include allylamines (e.g. terbinafine), azoles (e.g. ketoconazole), benzylamine, ciclopirox, tolnaftate and amorolfine. Oral antifungal agents used for the treatment of tinea pedis include terbinafine, itraconazole and fluconazole. Combined therapy with topical and oral antifungals may increase the cure rate. The prognosis is good with appropriate antifungal treatment. Untreated, the lesions may persist and progress.
Collapse
Affiliation(s)
- Alexander KC Leung
- Department of Pediatrics, The University of Calgary and The Alberta Children’s Hospital, Calgary, Alberta, Canada
| | | | - Joseph M Lam
- Department of Pediatrics and Department of Dermatology and Skin Sciences, University of British Columbia and BC Children’s Hospital, Vancouver, British Columbia, Canada
| | - Kin Fon Leong
- Pediatric Institute, Kuala Lumpur General Hospital, Kuala Lumpur, Malaysia
| | - Kam Lun Hon
- Department of Paediatrics, Chinese University of Hong Kong Medical Centre, The Chinese University of Hong Kong, Shatin, Hong Kong
| |
Collapse
|
2
|
Solanum dulcamara L. Berries: A Convenient Model System to Study Redox Processes in Relation to Fruit Ripening. Antioxidants (Basel) 2023; 12:antiox12020346. [PMID: 36829905 PMCID: PMC9952312 DOI: 10.3390/antiox12020346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/25/2023] [Accepted: 01/29/2023] [Indexed: 02/04/2023] Open
Abstract
The present study provides, for the first time, a physicochemical and biochemical characterization of the redox processes associated with the ripening of Solanum dulcamara L. (bittersweet) berries. Electron Paramagnetic Resonance Spectroscopy (EPRS) and Imaging (EPRI) measurements of reactive oxygen species (ROS) were performed in parallel with the tissue-specific metabolic profiling of major antioxidants and assessment of antioxidant enzymes activity. Fruit transition from the mature green (MG) to ripe red (RR) stage involved changes in the qualitative and quantitative content of antioxidants and the associated cellular oxidation and peroxidation processes. The skin of bittersweet berries, which was the major source of antioxidants, exhibited the highest antioxidant potential against DPPH radicals and nitroxyl spin probe 3CP. The efficient enzymatic antioxidant system played a critical protective role against the deleterious effects of progressive oxidative stress during ripening. Here, we present the EPRI methodology to assess the redox status of fruits and to discriminate between the redox states of different tissues. Interestingly, the intracellular reoxidation of cell-permeable nitroxide probe 3CP was observed for the first time in fruits or any other plant tissue, and its intensity is herein proposed as a reliable indicator of oxidative stress during ripening. The described noninvasive EPRI technique has the potential to have broader application in the study of redox processes associated with the development, senescence, and postharvest storage of fruits, as well as other circumstances in which oxidative stress is implicated.
Collapse
|
3
|
Zhang H, Yang Q, Zhao J, Chen J, Wang S, Ma M, Liu H, Zhang Q, Zhao H, Zhou D, Wang X, Gao J, Zhao H. Metabolites from Bacillus subtilis J-15 Affect Seedling Growth of Arabidopsis thaliana and Cotton Plants. PLANTS (BASEL, SWITZERLAND) 2022; 11:3205. [PMID: 36501248 PMCID: PMC9739671 DOI: 10.3390/plants11233205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/16/2022] [Accepted: 11/19/2022] [Indexed: 06/17/2023]
Abstract
Bacillus subtilis J-15 is a plant growth-promoting rhizobacteria isolated from the soil rhizosphere of cotton and is resistant to cotton verticillium wilt. This study evaluated the effects of metabolites of J-15 (J-15-Ms), including mycosubtilin, on plant growth using Arabidopsis and cotton plants. The results showed that J-15-Ms promoted Arabidopsis seeding growth at lower concentrations of 0.2 μg/mL but inhibited the growth at higher concentrations, such as 20 μg/mL. Similar results were obtained in cotton. Thus, J-15-Ms-treated plants showed low-concentration-induced growth promotion and high-concentration-induced growth inhibition. The J-15-Ms components were analyzed by liquid chromatography-mass spectrometry. Correlation analysis using the J-15 genomic databases suggested that J-15 may synthesize indoleacetic acid via the indole-3-pymvate pathway and indole-3-acetamide pathway. Treatment with mycosubtilin, a purified peptide from J-15-Ms, showed that the peptide promoted Arabidopsis growth at a low concentration (0.1 μg/mL) and inhibited plant growth at high concentrations (higher than 1 μg/mL), which also significantly increased plant lateral root number. Transcriptomic analysis showed that mycosubtilin might promote lateral root development and inhibit plant primary root growth by regulating the expression of the plant hormone signaling pathway. This study reveals the mechanism of Bacillus subtilis J-15 in affecting plant growth.
Collapse
Affiliation(s)
- Hui Zhang
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China
| | - Qilin Yang
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China
| | - Jingjing Zhao
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China
| | - Jiayi Chen
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China
| | - Shiqi Wang
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China
| | - Mingyue Ma
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China
| | - Huan Liu
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China
| | - Qi Zhang
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing 100875, China
| | - Heping Zhao
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing 100875, China
| | - Dongyuan Zhou
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China
| | - Xianxian Wang
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China
| | - Jie Gao
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China
| | - Huixin Zhao
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China
| |
Collapse
|
4
|
Valencia-Mejía E, León-Wilchez YY, Monribot-Villanueva JL, Ramírez-Vázquez M, Bonilla-Landa I, Guerrero-Analco JA. Isolation and Identification of Pennogenin Tetraglycoside from Cestrum nocturnum (Solanaceae) and Its Antifungal Activity against Fusarium kuroshium, Causal Agent of Fusarium Dieback. Molecules 2022; 27:molecules27061860. [PMID: 35335224 PMCID: PMC8951829 DOI: 10.3390/molecules27061860] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 03/04/2022] [Accepted: 03/08/2022] [Indexed: 02/01/2023] Open
Abstract
Antifungal assay-guided fractionation of the methanolic crude extract of Cestrum nocturnum (Solanaceae), popular known as ‘lady of the night’, led the isolation and identification of the steroidal saponin named pennogenin tetraglycoside, which was identified for the first time in this plant species by spectroscopic means. The crude extract, fractions and pennogenin tetraglycoside exhibited mycelial growth inhibition of Fusarium solani and F. kuroshium. F. solani is a cosmopolitan fungal phytopathogen that affects several economically important crops. However, we highlight the antifungal activity displayed by pennogenin tetraglycoside against F. kuroshium, since it is the first plant natural product identified as active for this phytopathogen. This fungus along with its insect symbiont known as Kuroshio shot hole borer (Euwallacea kuroshio) are the causal agents of the plant disease Fusarium dieback that affects more than 300 plant species including avocado (Persea americana) among others of ecological relevance. Scanning electron microscopy showed morphological alterations of the fungal hyphae after exposure with the active fractions and 12 phenolic compounds were also identified by mass spectrometry dereplication as part of potential active molecules present in C. nocturnum leaves.
Collapse
Affiliation(s)
- Erika Valencia-Mejía
- Laboratorio de Química de Productos Naturales, Red de Estudios Moleculares Avanzados, Instituto de Ecología A.C. (INECOL)—Clúster Científico y Tecnológico BioMimic, Carretera Antigua a Coatepec N. 351, Xalapa 91073, Veracruz, Mexico; (E.V.-M.); (Y.Y.L.-W.); (J.L.M.-V.)
| | - Yeli Y. León-Wilchez
- Laboratorio de Química de Productos Naturales, Red de Estudios Moleculares Avanzados, Instituto de Ecología A.C. (INECOL)—Clúster Científico y Tecnológico BioMimic, Carretera Antigua a Coatepec N. 351, Xalapa 91073, Veracruz, Mexico; (E.V.-M.); (Y.Y.L.-W.); (J.L.M.-V.)
| | - Juan L. Monribot-Villanueva
- Laboratorio de Química de Productos Naturales, Red de Estudios Moleculares Avanzados, Instituto de Ecología A.C. (INECOL)—Clúster Científico y Tecnológico BioMimic, Carretera Antigua a Coatepec N. 351, Xalapa 91073, Veracruz, Mexico; (E.V.-M.); (Y.Y.L.-W.); (J.L.M.-V.)
| | - Mónica Ramírez-Vázquez
- Unidad de Microscopía Avanzada, Red de Estudios Moleculares Avanzados, Instituto de Ecología A.C. (INECOL)—Clúster Científico y Tecnológico BioMimic, Carretera Antigua a Coatepec N. 351, Xalapa 91073, Veracruz, Mexico;
- Facultad de Ciencias, Universidad Nacional Autónoma de México (UNAM), Circuito Exterior, Cd. Universitaria, Copilco, Coyoacán, Ciudad de México 04510, Mexico
| | - Israel Bonilla-Landa
- Laboratorio de Química Orgánica, Red de Estudios Moleculares Avanzados, Instituto de Ecología A.C. (INECOL)—Clúster Científico y Tecnológico BioMimic, Carretera Antigua a Coatepec N. 351, Xalapa 91073, Veracruz, Mexico;
| | - José A. Guerrero-Analco
- Laboratorio de Química de Productos Naturales, Red de Estudios Moleculares Avanzados, Instituto de Ecología A.C. (INECOL)—Clúster Científico y Tecnológico BioMimic, Carretera Antigua a Coatepec N. 351, Xalapa 91073, Veracruz, Mexico; (E.V.-M.); (Y.Y.L.-W.); (J.L.M.-V.)
- Correspondence: ; Tel.: +52-228-8421-800 (ext. 3514)
| |
Collapse
|
5
|
Iguchi T, Takahashi N, Mimaki Y. A Total of Eight Novel Steroidal Glycosides Based on Spirostan, Furostan, Pseudofurostan, and Cholestane from the Leaves of Cestrum newellii. Molecules 2020; 25:molecules25194462. [PMID: 32998410 PMCID: PMC7582601 DOI: 10.3390/molecules25194462] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 09/16/2020] [Accepted: 09/26/2020] [Indexed: 11/16/2022] Open
Abstract
Previously, various steroidal glycosides were reported from plants of Cestrum species. However, phytochemical investigation has not been conducted on Cestrum newellii. A systematic phytochemical investigation of the leaves of C. newellii resulted in the isolation of eight novel steroidal glycosides (1-8), which were classified into three spirostanol glycosides (1-3), two furostanol glycosides (4 and 5), two pseudofurostanol glycosides (6 and 7), and one cholestane glycoside (8). In addition, three known cholestane glycosides (9-11) were isolated and identified. The structures of the new compounds were determined based on spectroscopic data and chemical transformations. Compounds 1 and 2 are spirostanol glycosides having hydroxy groups at C-2, C-3, C-12, and C-24 of the aglycone moiety. Although C. newellii is known to be a poisonous plant, the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide assay exhibited that none of the isolated compounds were cytotoxic to HL-60 human promyelocytic leukemia cells.
Collapse
|
6
|
Antifungal polyketide derivatives from the endophytic fungus Aplosporella javeedii. Bioorg Med Chem 2020; 28:115456. [PMID: 32238320 DOI: 10.1016/j.bmc.2020.115456] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Accepted: 03/16/2020] [Indexed: 11/23/2022]
Abstract
Six new polyketides aplojaveediins A-F (1-6) were isolated from the endophytic fungus Aplosporella javeedii associated with the host plant Orychophragmus violaceus (Brassicaceae). The structures of the new metabolites were elucidated by analysis of their NMR and MS data. Compound 1 exhibited antifungal activity against the hyphae form of Candida albicans strain ATCC 24433 in the agar plate diffusion assay and the microbroth dilution assay. The kinetic of killing of C. albicans cells for compound 1 was considerably faster than that of the positive control hygromycin B. Compounds 1 and 6 also exhibited moderate antibacterial activities against sensitive (ATCC 29213) and drug-resistant (ATCC 700699) strains of Staphylococcus aureus.
Collapse
|
7
|
Salazar-Magallón JA, Huerta de la Peña A. Production of antifungal saponins in an airlift bioreactor with a cell line transformed from Solanum chrysotrichum and its activity against strawberry phytopathogens. Prep Biochem Biotechnol 2020; 50:204-214. [PMID: 31935152 DOI: 10.1080/10826068.2019.1676781] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Biotechnology through plant cell cultures in bioreactors is a tool that allows increasing the production of secondary metabolites of commercial interest. The hydrodynamic characterization, in addition to the transfer (OTR) and uptake (OUR) of oxygen through the dynamic method with different aeration rate, were used to see their influence on the production of biomass and saponins. The culture poisoning technique was used to determine the antifungal activity of the SC-2 and SC-3 saponins in vitro. Likewise, the shear or hydrodynamic stress of 273.6 mN/m2 were calculated based on the Reynolds Number. The oxygen supply (OTR) was always greater than the demand (OUR) for all the aeration rate evaluated. Dry weight values of 8.6 gDW/L and a concentration of 2.7 mg/L and 187.3 mg/L of the saponins SC-2 and SC-3 respectively were obtained with an air flow of 0.1 vvm. In addition, it was possible to inhibit the growth of phytopathogenic fungi in vitro by up to 93%, while in vivo it was possible to reduce the infections of strawberry seeds inoculated with phytopathogens, obtaining up to 94% of germinated seeds. This information will facilitate the rational operation of the bioreactor culture system that produces secondary metabolites.
Collapse
Affiliation(s)
- Jesús Antonio Salazar-Magallón
- Colegio de Postgraduados Campus Puebla, Unidad en Desarrollo para la Investigación y Transferencia de Tecnología en Control Biológico, San Pedro Cholula, México
| | - Arturo Huerta de la Peña
- Colegio de Postgraduados Campus Puebla, Unidad en Desarrollo para la Investigación y Transferencia de Tecnología en Control Biológico, San Pedro Cholula, México
| |
Collapse
|
8
|
Ramírez-Reyes TI, Aguilar-Colorado ÁS, Murrieta-León DL, Licona-Velázquez LS, Bonilla-Landa I, Durán-Espinosa C, Avendaño-Reyes S, Monribot-Villanueva JL, Guerrero-Analco JA. Identification of Antibacterial Phenolics in Selected Plant Species from Mexican Cloud Forest by Mass Spectrometry Dereplication. Chem Biodivers 2019; 16:e1800603. [PMID: 30658017 DOI: 10.1002/cbdv.201800603] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 01/18/2019] [Indexed: 01/02/2023]
Abstract
Fifteen plant species from a protected cloud forest (CF) in Veracruz, Mexico, were screened for their in vitro capacity to inhibit the growth of the phytopathogenic bacteria Chryseobacterium sp., Pseudomonas cichorii, Pectobacterium carotovorum and Pantoea stewartii, causal agents of damage to crops like 'chayote', lettuce, potato and corn. As a result, the bioactivity of Turpinia insignis and Leandra cornoides is reported for the first time against Chryseobacterium sp. and P. cichorii. In addition, 24 and 18 compounds not described for these species were dereplicated by an UPLC/MS-MS method, respectively. The identified compounds included simple phenols, hydroxycinnamic acids, flavonoids and coumarins. The antibacterial assay of 12 of them demonstrated the bacteriostatic effect of vanillin, trans-cinnamic acid, scopoletin and umbelliferone against Chryseobacterium sp. These findings confirm for the first time the value of the CF plants from Veracruz as sources of bioactive natural products with antimicrobial properties against phytopathogenic bacteria.
Collapse
Affiliation(s)
- Thalía I Ramírez-Reyes
- Laboratorio de Química de Productos Naturales, Red de Estudios Moleculares Avanzados, Instituto de Ecología A.C.-Clúster Científico y Tecnológico BioMimic®, 91070, Xalapa, Veracruz, México.,Cátedra CONACyT-Instituto de Agroindustrias, Universidad Tecnológica de la Mixteca, 69000, Huajuapan de León, Oaxaca, México
| | - Ángel S Aguilar-Colorado
- Laboratorio de Química de Productos Naturales, Red de Estudios Moleculares Avanzados, Instituto de Ecología A.C.-Clúster Científico y Tecnológico BioMimic®, 91070, Xalapa, Veracruz, México
| | - Diana L Murrieta-León
- Laboratorio de Química de Productos Naturales, Red de Estudios Moleculares Avanzados, Instituto de Ecología A.C.-Clúster Científico y Tecnológico BioMimic®, 91070, Xalapa, Veracruz, México
| | - Laura S Licona-Velázquez
- Laboratorio de Química de Productos Naturales, Red de Estudios Moleculares Avanzados, Instituto de Ecología A.C.-Clúster Científico y Tecnológico BioMimic®, 91070, Xalapa, Veracruz, México
| | - Israel Bonilla-Landa
- Laboratorio de Química de Productos Naturales, Red de Estudios Moleculares Avanzados, Instituto de Ecología A.C.-Clúster Científico y Tecnológico BioMimic®, 91070, Xalapa, Veracruz, México
| | - Carlos Durán-Espinosa
- Herbario-XAL, Instituto de Ecología A.C.-Clúster Científico y Tecnológico BioMimic®, 91070, Xalapa, Veracruz, México
| | - Sergio Avendaño-Reyes
- Herbario-XAL, Instituto de Ecología A.C.-Clúster Científico y Tecnológico BioMimic®, 91070, Xalapa, Veracruz, México
| | - Juan L Monribot-Villanueva
- Laboratorio de Química de Productos Naturales, Red de Estudios Moleculares Avanzados, Instituto de Ecología A.C.-Clúster Científico y Tecnológico BioMimic®, 91070, Xalapa, Veracruz, México
| | - José A Guerrero-Analco
- Laboratorio de Química de Productos Naturales, Red de Estudios Moleculares Avanzados, Instituto de Ecología A.C.-Clúster Científico y Tecnológico BioMimic®, 91070, Xalapa, Veracruz, México
| |
Collapse
|
9
|
Vargas JM, Andrade-Cetto A. Ethnopharmacological Field Study of Three Q'eqchi Communities in Guatemala. Front Pharmacol 2018; 9:1246. [PMID: 30483122 PMCID: PMC6240767 DOI: 10.3389/fphar.2018.01246] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 10/12/2018] [Indexed: 11/13/2022] Open
Abstract
Mesoamerica is well known for the Mayan civilization, which flourished in this region during pre-Columbian times and made use of plant diversity for medicinal purposes. Currently, there are 21 Mayan ethnic groups in Guatemala, including the Q'eqchi'. The use of medicinal plants is still prevalent among them, they have been an important medicinal source for the population. The present study aims to compile traditional knowledge of the use of medicinal plants from three Q'eqchi' communities in Alta Verapaz, Guatemala and identify the important medicinal plants that are currently being used to treat relevant diseases. The study also aims to determine the relative importance of the identified species to propose new species for further pharmacological studies. Based on the cultural richness and the low level of perturbation of the vegetation, we selected the Q'eqchi' communities of Sanimtaqá, Santo Domingo de las Cuevas, and Chirrepec in Alta Verapaz, Guatemala. There, semi-structured interviews were conducted between June 2013 and December 2014 with common people. Plant-related questions and certain sociocultural contexts of the informants were included. Herbarium specimens for identification were collected with the help of the informants in their gardens with people from each community. The data were analyzed in two forms, the first non-quantitative based on the interpretation of the interviews (emic concepts of diseases) the second by following quantitative methods: informant consensus factor (Fic), Friedman's fidelity index (Fl), and use-reports (Ur). A total of 169 interviews were conducted. One hundred thirty-seven species of plants with medicinal uses were identified, which were described 2,055 times. These species belong to 59 families and 117 genera. Gastrointestinal conditions and pain/fever had the highest number of plant species uses for treatment. The main gastrointestinal conditions included diarrhea (Nume'sa'), stomach pain and worms (Luqum), while the pain/fever classification included headaches (rail jolom), and fevers (Tiq'). The most important cultural condition is called Chaquiq'yaj, the symptoms of the disease; diarrhea, vomiting, fever, lack of appetite, and thirst could be associated with a gastrointestinal. Conclusions: After analyzing the data, we can conclude that; Ageratina ligustrina, Catopheria chiapensis, Baccharis inamoena, Peperomia maculosa, Baccharis salicina, Clinopodium brownei, Calea integrifolia, and Smallanthus maculatus var. maculatus are the most culturally relevant species.
Collapse
Affiliation(s)
- Jorge Mario Vargas
- Laboratorio de Etnofarmacología, Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico, Mexico
| | - Adolfo Andrade-Cetto
- Laboratorio de Etnofarmacología, Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico, Mexico
| |
Collapse
|
10
|
Ngo HX, Garneau-Tsodikova S, Green KD. A complex game of hide and seek: the search for new antifungals. MEDCHEMCOMM 2016; 7:1285-1306. [PMID: 27766140 PMCID: PMC5067021 DOI: 10.1039/c6md00222f] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Fungal infections directly affect millions of people each year. In addition to the invasive fungal infections of humans, the plants and animals that comprise our primary food source are also susceptible to diseases caused by these eukaryotic microbes. The need for antifungals, not only for our medical needs, but also for use in agriculture and livestock causes a high demand for novel antimycotics. Herein, we provide an overview of the most commonly used antifungals in medicine and agriculture. We also present a summary of the recent progress (from 2010-2016) in the discovery/development of new agents against fungal strains of medical/agricultural relevance, as well as information related to their biological activity, their mode(s) of action, and their mechanism(s) of resistance.
Collapse
Affiliation(s)
- Huy X. Ngo
- University of Kentucky, Department of Pharmaceutical Sciences, 789 South Limestone Street, Lexington, KY, USA. Fax: 859-257-7585; Tel: 859-218-1686
| | - Sylvie Garneau-Tsodikova
- University of Kentucky, Department of Pharmaceutical Sciences, 789 South Limestone Street, Lexington, KY, USA. Fax: 859-257-7585; Tel: 859-218-1686
| | - Keith D. Green
- University of Kentucky, Department of Pharmaceutical Sciences, 789 South Limestone Street, Lexington, KY, USA. Fax: 859-257-7585; Tel: 859-218-1686
| |
Collapse
|