1
|
Devillers J, Larghi A, Sartor V, Setier-Rio ML, Lagneau C, Devillers H. Nonlinear SAR Modelling of Mosquito Repellents for Skin Application. TOXICS 2023; 11:837. [PMID: 37888688 PMCID: PMC10610853 DOI: 10.3390/toxics11100837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 09/28/2023] [Accepted: 09/29/2023] [Indexed: 10/28/2023]
Abstract
Finding new marketable mosquito repellents is a complex and time-consuming process that can be optimized via modelling. In this context, a SAR (Structure-Activity Relationship) model was designed from a set of 2171 molecules whose actual repellent activity against Aedes aegypti was available. Information-rich descriptors were used as input neurons of a three-layer perceptron (TLP) to compute the models. The most interesting classification model was a 20/6/2 TLP showing 94% and 89% accuracy on the training set and test set, respectively. A total of 57 other artificial neural network models based on the same architecture were also computed. This allowed us to consider all chemicals both as training and test set members in order to better interpret the results obtained with the selected model. Most of the wrong predictions were explainable. The 20/6/2 TLP model was then used for predicting the potential repellent activity of new molecules. Among them, two were successfully evaluated in vivo.
Collapse
Affiliation(s)
| | - Adeline Larghi
- EID Méditerranée, Direction Technique, 34184 Montpellier, France
| | - Valérie Sartor
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III-Paul Sabatier, 31062 Toulouse, France
| | | | | | - Hugo Devillers
- SPO, University Montpellier, INRAE, Institut Agro, 34000 Montpellier, France
| |
Collapse
|
2
|
Priya SS, Vasantha-Srinivasan P, Altemimi AB, Keerthana R, Radhakrishnan N, Senthil-Nathan S, Kalaivani K, Chandrasekar N, Karthi S, Ganesan R, Alkanan ZT, Pal T, Verma OP, Proćków J. Bioactive Molecules Derived from Plants in Managing Dengue Vector Aedes aegypti (Linn.). Molecules 2023; 28:molecules28052386. [PMID: 36903635 PMCID: PMC10005433 DOI: 10.3390/molecules28052386] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 02/13/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
Mosquitoes are the potential vectors of several viral diseases such as filariasis, malaria, dengue, yellow fever, Zika fever and encephalitis in humans as well as other species. Dengue, the most common mosquito-borne disease in humans caused by the dengue virus is transmitted by the vector Ae. aegypti. Fever, chills, nausea and neurological disorders are the frequent symptoms of Zika and dengue. Thanks to various anthropogenic activities such as deforestation, industrialized farming and poor drainage facilities there has been a significant rise in mosquitoes and vector-borne diseases. Control measures such as the destruction of mosquito breeding places, a reduction in global warming, as well as the use of natural and chemical repellents, mainly DEET, picaridin, temephos and IR-3535 have proven to be effective in many instances. Although potent, these chemicals cause swelling, rashes, and eye irritation in adults and children, and are also toxic to the skin and nervous system. Due to their shorter protection period and harmful nature towards non-target organisms, the use of chemical repellents is greatly reduced, and more research and development is taking place in the field of plant-derived repellents, which are found to be selective, biodegradable and harmless to non-target species. Many tribal and rural communities across the world have been using plant-based extracts since ancient times for various traditional and medical purposes, and to ward off mosquitoes and various other insects. In this regard, new species of plants are being identified through ethnobotanical surveys and tested for their repellency against Ae. aegypti. This review aims to provide insight into many such plant extracts, essential oils and their metabolites, which have been tested for their mosquitocidal activity against different life cycle forms of Ae. Aegypti, as well as for their efficacy in controlling mosquitoes.
Collapse
Affiliation(s)
- Sridhar Shanmuga Priya
- Department of Biotechnology, St. Peter’s Institute of Higher Education Research, Chennai 600077, India
| | - Prabhakaran Vasantha-Srinivasan
- Department of Bioinformatics, Saveetha School of Engineering, Saveetha Institute of Medical 17 and Technical Sciences (SIMATS), Chennai 602105, India
| | - Ammar B. Altemimi
- Department of Food Science, College of Agriculture, University of Basrah, Basrah 61004, Iraq
- College of Medicine, University of Warith Al-Anbiyaa, Karbala 56001, Iraq
| | - Ramji Keerthana
- Department of Biotechnology, RV College of Engineering, Bangalore 560059, India
| | - Narayanaswamy Radhakrishnan
- Department of Biochemistry, Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai 602105, India
| | - Sengottayan Senthil-Nathan
- Division of Bio-Pesticides and Environmental Toxicology, Sri Paramakalyani Centre for 14 Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, 15, Tirunelveli 627412, India
- Correspondence: (S.S.-N.); (J.P.)
| | - Kandasamy Kalaivani
- Post Graduate and Research Centre, Department of Zoology, Sri Parasakthi College for Women, Courtrallam 627802, India
| | | | - Sengodan Karthi
- Department of Entomology, College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY 40503, USA
| | - Raja Ganesan
- Institute for Liver and Digestive Diseases, College of Medicine, Hallym University, Chuncheon 24252, Republic of Korea
| | - Zina T. Alkanan
- Department of Food Science, College of Agriculture, University of Basrah, Basrah 61004, Iraq
| | - Tarun Pal
- Department of Biotechnology, Vignan’s Foundation for Science, Technology and Research, Vadlamudi, Guntur 522213, India
| | - Om Prakash Verma
- Department of Molecular and Cellular Engineering, Jacob Institute of Biotechnology and Bioengineering, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj 211007, India
| | - Jarosław Proćków
- Department of Plant Biology, Institute of Environmental Biology, Wrocław University of Environmental and Life Sciences, Kożuchowska 5b, 51-631 Wrocław, Poland
- Correspondence: (S.S.-N.); (J.P.)
| |
Collapse
|
3
|
Zulfiqar F, Ali A, Ali Z, Khan IA. Bioassay-Guided Isolation of Iridoid Glucosides from Stenaria nigricans, Their Biting Deterrence against Aedes aegypti (Diptera: Culicidae), and Repellency Assessment against Imported Fire Ants (Hymenoptera: Formicidae). Molecules 2022; 27:7053. [PMID: 36296645 PMCID: PMC9611780 DOI: 10.3390/molecules27207053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/14/2022] [Accepted: 10/17/2022] [Indexed: 11/17/2022] Open
Abstract
In our natural product screening program, we screened natural products for their repellency and toxicity against insect vectors. Methanolic extract of aerial parts of Stenaria nigricans (Lam.), with no published chemistry, was tested for repellency against mosquitoes and imported hybrid fire ants. Methanolic extracts showed biting deterrence similar to DEET (N,N-diethyl-3-methylbenzamide) against Aedes aegypti L. Based on this activity, the crude extract was fractionated into chloroform, ethyl acetate, and methanol subfractions. The active methanolic subfraction was further fractionated into 13 subfractions. These fractions were tested for their biting deterrence against Ae. Aegypti. Active subfractions were further characterized to identify the compounds responsible for this activity. Four undescribed iridoid glucosides (1-4) and three previously reported compounds (5-7) were isolated from active subfractions and tested for their biting deterrent activity. Based on BDI values, compounds 2, 3, 6, and 7, with biting deterrence similar to DEET, showed the potential to be used as repellents against mosquitoes. In an in vitro digging bioassay, none of these compounds showed any repellency against hybrid imported fire ants at a dose of 125 µg/g. This is the first report of biting deterrence and repellency of S. nigricans extract and its pure compounds, iridoid glucosides against mosquitoes and imported fire ants. Further studies will be conducted to explore the repellent potential of these compounds in different formulations under field conditions.
Collapse
Affiliation(s)
- Fazila Zulfiqar
- National Center for Natural Products Research, School of Pharmacy, The University of Mississippi, Oxford, MS 38677, USA
| | - Abbas Ali
- National Center for Natural Products Research, School of Pharmacy, The University of Mississippi, Oxford, MS 38677, USA
| | - Zulfiqar Ali
- National Center for Natural Products Research, School of Pharmacy, The University of Mississippi, Oxford, MS 38677, USA
| | - Ikhlas A. Khan
- National Center for Natural Products Research, School of Pharmacy, The University of Mississippi, Oxford, MS 38677, USA
- Department of BioMolecular Sciences, Division of Pharmacognosy, School of Pharmacy, The University of Mississippi, Oxford, MS 38677, USA
| |
Collapse
|
4
|
Correa de Oliveira PM, Barreto Sousa JP, Albernaz LC, Coelho-Ferreira M, Salmen Espindola L. Bioprospection for new larvicides against Aedes aegypti based on ethnoknowledge from the Amazonian São Sebastião de Marinaú riverside community. JOURNAL OF ETHNOPHARMACOLOGY 2022; 293:115284. [PMID: 35447199 DOI: 10.1016/j.jep.2022.115284] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 04/02/2022] [Accepted: 04/06/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Vector-borne diseases represent a huge global burden impacting health systems. Aedes aegypti is the main vector of arboviral diseases including dengue, Zika, chikungunya and urban yellow fever in both tropical and subtropical areas. Ethnopharmacological investigations provide potential avenues for developing new vector control strategies. AIM OF THE STUDY The objective of this study is to document the São Sebastião de Marinaú riverside community's ethnoknowledge of local plants used to control mosquitoes and perform bioguided fractionation to isolate the compounds active against the arboviral disease vector Ae. aegypti. MATERIALS AND METHODS Semi-structured interviews were conducted with residents of the Marinaú community located in the Caxiuanã National Forest, in the Amazon biome, Pará, Brazil. The plants used to control mosquitoes were subjected to phytochemical studies guided by Ae. aegypti assays. Extracts were obtained from seven species using distinct organic solvents. Active extracts and fractions were separated by chromatographic techniques. Isolated compounds were characterized by NMR, LC/MS and GC/MS. Sample activity against Ae. aegypti larvae and pupae was evaluated after 24, 48 and 72 h exposure. The extracts were also investigated against adult female mosquitoes. The LC50 values were determined by diluting each sample to obtain different concentrations in the respective activity range. RESULTS The Marinaú community uses more than ten plants as a repellent, most of which are trees native to the region. The primary applications of these plants to protect against insect bites were: burning plants (fumigation), application of body oils and bathing in macerated plants. Carapa guianensis is the predominant species used as a repellent. Extracts from Diospyros guianensis fruits, Carapa guianensis seed shells and Aspidosperma nitidum wood demonstrated Ae. aegypti larvicidal activity. The C. guianensis seed shell extract demonstrated a residual larvicidal effect. Plumbagin, stigmasterol, β-sitosterol, betulinic, ursolic and oleanolic acids, and betulin were identified in the D. guianensis extract. The plumbagin, ursolic and oleanolic acids displayed larvicidal activity. Oleanolic, ursolic and betulinic acids, and betulin were considered pupicidal. Aricine, the major alkaloid isolated from A. nitidum wood, also presented larvicidal activity. CONCLUSIONS Ten plant species traditionally used by the Marinaú community to afford protection against mosquitoes were reported. C. guianensis, D. guianensis and A. nitidum extracts were considered larvicidal against Ae. aegypti. Four triterpenes stood out as very active compounds against pupae. Aricine, an indole alkaloid, displayed larvicidal activity. Therefore, traditional knowledge of Amazonian plants combined with bioguided fractionation constitutes a strategy for the development of eco-friendly insecticides to control Ae. aegypti, an arbovirus vector.
Collapse
Affiliation(s)
- Paula Maria Correa de Oliveira
- Universidade Federal do Pará, Programa de Pós-Graduação em Biodiversidade e Biotecnologia, R. Augusto Corrêa, 01 - Guamá, 66075-110, Belém, PA, Brazil; Universidade de Brasília, Laboratório de Farmacognosia, Campus Universitário Darcy Ribeiro, 70910-900, Brasília, DF, Brazil.
| | - João Paulo Barreto Sousa
- Universidade de Brasília, Laboratório de Farmacognosia, Campus Universitário Darcy Ribeiro, 70910-900, Brasília, DF, Brazil.
| | - Lorena C Albernaz
- Universidade de Brasília, Laboratório de Farmacognosia, Campus Universitário Darcy Ribeiro, 70910-900, Brasília, DF, Brazil.
| | - Márlia Coelho-Ferreira
- Universidade Federal do Pará, Programa de Pós-Graduação em Biodiversidade e Biotecnologia, R. Augusto Corrêa, 01 - Guamá, 66075-110, Belém, PA, Brazil; Instituto Nacional da Mata Atlântica, Av. José Ruschi, Centro, 29650-000, Santa Teresa, ES, Brazil.
| | - Laila Salmen Espindola
- Universidade de Brasília, Laboratório de Farmacognosia, Campus Universitário Darcy Ribeiro, 70910-900, Brasília, DF, Brazil.
| |
Collapse
|
5
|
Luo DY, Yan ZT, Che LR, Zhu JJ, Chen B. Repellency and insecticidal activity of seven Mugwort (Artemisia argyi) essential oils against the malaria vector Anopheles sinensis. Sci Rep 2022; 12:5337. [PMID: 35351963 PMCID: PMC8964668 DOI: 10.1038/s41598-022-09190-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 03/14/2022] [Indexed: 11/28/2022] Open
Abstract
Anopheles sinensis is the main vector of malaria with a wide distribution in China and its adjacent countries. The smoke from burning dried mugwort leaves has been commonly used to repel and kill mosquito adults especially in southern Chinese provinces. In this study, the essential oils of mugwort leaves collected from seven provinces in China were extracted by steam distillation and their chemical compositions were analyzed. Among a total of 56–87 chemical constituents confirmed by GC–MS analyses, four compounds, eucalyptol, β-caryophyllene, phytol and caryophyllene oxide, were identified with appearances from all seven distilled essential oils. The effectiveness varied in larvicidal, fumigant and repellent activities against An. sinensis from these seven essential oils with different geographic origins. The essential oil from Hubei province showed the highest larvicidal activity against the 4th instar larvae of An. sinensis, with a median lethal concentration at 40.23 µg/mL. For fumigation toxicity, essential oils from 4 provinces (Gansu, Shandong, Sichuan and Henan) were observed with less than 10 min in knockdown time. The essential oil distilled from Gansu province displayed the highest repellent activity against Anopheles mosquitoes and provided similar level of protection as observed from DEET. Eucalyptol was the most toxic fumigant compound and phytol showed the strongest larvicidal activity among all tested mugwort essential oil constituents.
Collapse
Affiliation(s)
- De-Yue Luo
- Chongqing Key Laboratory of Vector Insects, Institute of Entomology and Molecular Biology, Chongqing Normal University, Chongqing, 401331, China
| | - Zhen-Tian Yan
- Chongqing Key Laboratory of Vector Insects, Institute of Entomology and Molecular Biology, Chongqing Normal University, Chongqing, 401331, China
| | - Lin-Rong Che
- Chongqing Key Laboratory of Vector Insects, Institute of Entomology and Molecular Biology, Chongqing Normal University, Chongqing, 401331, China
| | | | - Bin Chen
- Chongqing Key Laboratory of Vector Insects, Institute of Entomology and Molecular Biology, Chongqing Normal University, Chongqing, 401331, China.
| |
Collapse
|
6
|
Şengül Demirak MŞ, Canpolat E. Plant-Based Bioinsecticides for Mosquito Control: Impact on Insecticide Resistance and Disease Transmission. INSECTS 2022; 13:162. [PMID: 35206735 PMCID: PMC8878986 DOI: 10.3390/insects13020162] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/30/2022] [Accepted: 01/31/2022] [Indexed: 11/30/2022]
Abstract
The use of synthetic insecticides has been a solution to reduce mosquito-borne disease transmission for decades. Currently, no single intervention is sufficient to reduce the global disease burden caused by mosquitoes. Problems associated with extensive usage of synthetic compounds have increased substantially which makes mosquito-borne disease elimination and prevention more difficult over the years. Thus, it is crucial that much safer and effective mosquito control strategies are developed. Natural compounds from plants have been efficiently used to fight insect pests for a long time. Plant-based bioinsecticides are now considered a much safer and less toxic alternative to synthetic compounds. Here, we discuss candidate plant-based compounds that show larvicidal, adulticidal, and repellent properties. Our discussion also includes their mode of action and potential impact in mosquito disease transmission and circumvention of resistance. This review improves our knowledge on plant-based bioinsecticides and the potential for the development of state-of-the-art mosquito control strategies.
Collapse
Affiliation(s)
- Meryem Ş. Şengül Demirak
- Department of Molecular Biology and Genetics, Tokat Gaziosmanpaşa University, Tokat 60150, Turkey;
| | | |
Collapse
|
7
|
Gou Y, Li Z, Fan R, Guo C, Wang L, Sun H, Li J, Zhou C, Wang C, Wang Y. Ethnobotanical survey and evaluation of traditional mosquito repellent plants of Dai people in Xishuangbanna, Yunnan Province, China. JOURNAL OF ETHNOPHARMACOLOGY 2020; 262:113124. [PMID: 32730874 DOI: 10.1016/j.jep.2020.113124] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 06/15/2020] [Accepted: 06/17/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Dengue is one of the most important pervasive diseases in many regions of the world, including China. There is an urgent need for new repellents, including plant derivatives, due to the resistance, toxicity, and non-degradability of synthetic insecticides. Traditional plant-based remedies may provide potential avenues for developing new strategies. AIMS OF THE STUDY The aims of this study were to 1) document the traditional mosquitoes repellent plants used by the Dai people of Xishuangbanna, China; 2) screen out new efficient mosquito repellent plants as candidates for further study. MATERIALS AND METHODS During the period August 2016 to July 2017, five field surveys were conducted in 16 villages of Xishuangbanna. A total of 81 informants (44 males and 37 females) were interviewed using semi-structured questions to collect detailed information on the plants they use to prevent mosquito bites. Ten plants with higher popularity and larger resource were collected and extracts were prepared by hydro-distillation or with petroleum ether. Extracts were tested for adult Aedes albopictus repellency using a human-bait cage. Firstly, repellency was determined as the Minimum Effective Dosage (MED) per minute at which 1% of the mosquito bite through the treated cloth. Secondly, five plant extracts with lower MEDs were tested the repellent longevity of different concentrations. RESULTS Eighteen plants were documented as being used in traditional remedies against mosquitoes. The methods for controlling mosquitoes were diverse: direct burning was used for most plants (16 species), followed by smearing (5 species), and placing (5 species). Laboratory analyses confirmed that ten plants did exhibit mosquito repellent activity. Of them, Artemisia indica, Nicotiana tabacum, Blumea balsamifera, Vitex trifolia, and Chromolaena odorata showed good mosquito repellency with MEDs of 0.015, 0.061, 0.090, 0.090, and 0.105 mg/cm2, respectively. The protection rate provided by A. indica is also the highest among five plants. Although it provides complete protection time of only 30 min at 0.45 mg/cm2 concentration, its repellency within 2 h is not significantly different from that of DEET. CONCLUSION Dai villagers in Xishuangbanna have a rich, diverse and scientific knowledge of plant-based mosquito repellents. Laboratory experiments screened out several plants as candidates for mosquito repellents, of which Artemisia indica was the most promising candidate plant.
Collapse
Affiliation(s)
- Yi Gou
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
| | - Zhennan Li
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Ruyan Fan
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
| | - Changan Guo
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Lu Wang
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Hongzheng Sun
- Kunming City Center for Disease Control and Prevention, Kunming, 650201, China.
| | - Jiping Li
- Kunming City Center for Disease Control and Prevention, Kunming, 650201, China.
| | - Chengpeng Zhou
- Kunming City Center for Disease Control and Prevention, Kunming, 650201, China.
| | - Chen Wang
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
| | - Yuhua Wang
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
| |
Collapse
|
8
|
Insecticidal and Biting Deterrent Activities of Magnolia grandiflora Essential Oils and Selected Pure Compounds against Aedes aegypti. Molecules 2020; 25:molecules25061359. [PMID: 32192065 PMCID: PMC7144101 DOI: 10.3390/molecules25061359] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 03/10/2020] [Accepted: 03/14/2020] [Indexed: 11/16/2022] Open
Abstract
In our natural products screening program for mosquitoes, we tested essential oils extracted from different plant parts of Magnolia grandiflora L. for their insecticidal and biting deterrent activities against Aedes aegypti. Biting deterrence of seeds essential oil with biting deterrence index value of 0.89 was similar to N,N-diethyl-3-methylbenzamide (DEET). All the other oils were active above the solvent control but the activity was significantly lower than DEET. Based on GC-MS analysis, three pure compounds that were only present in the essential oil of seed were further investigated to identify the compounds responsible for biting deterrent activity. 1-Decanol with PNB value of 0.8 was similar to DEET (PNB = 0.8), whereas 1-octanol with PNB value of 0.64 showed biting deterrence lower than 1-decanol and DEET. The activity of 1-heptanol with PNB value of 0.36 was similar to the negative control. Since 1-decanol, which was 3.3% of the seed essential oil, showed biting deterrence similar to DEET as a pure compound, this compound might be responsible for the activity of this oil. In in vitro A & K bioassay, 1-decanol with MED value of 6.25 showed higher repellency than DEET (MED = 12.5). Essential oils of immature and mature fruit showed high toxicity whereas leaf, flower, and seeds essential oils gave only 20%, 0%, and 50% mortality, respectively, at the highest dose of 125 ppm. 1-Decanol with LC50 of 4.8 ppm was the most toxic compound.
Collapse
|
9
|
Islam MT, Mubarak MS. Diterpenes and their derivatives as promising agents against dengue virus and dengue vectors: A literature‐based review. Phytother Res 2019; 34:674-684. [DOI: 10.1002/ptr.6562] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 10/13/2019] [Accepted: 11/08/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Muhammad Torequl Islam
- Department for Management of Science and Technology DevelopmentTon Duc Thang University Ho Chi Minh City Vietnam
- Faculty of PharmacyTon Duc Thang University Ho Chi Minh City Vietnam
| | | |
Collapse
|
10
|
Evaluation of Larvicidal and Repellent Activity of Nanocrystal Emulsion Synthesized from F. glomerata and Neem Oil Against Mosquitoes. J CLUST SCI 2019. [DOI: 10.1007/s10876-019-01611-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
11
|
Cantrell CL, Ali A, Jones AMP. Isolation and identification of mosquito biting deterrents from the North American mosquito repelling folk remedy plant, Matricaria discoidea DC. PLoS One 2018; 13:e0206594. [PMID: 30379955 PMCID: PMC6209309 DOI: 10.1371/journal.pone.0206594] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 10/16/2018] [Indexed: 12/04/2022] Open
Abstract
Matricaria discoidea DC. (Asteraceae) has documented use as an insect repellent by Blackfoot Indians and other indigenous groups of North America. This investigation was conducted to evaluate this practice and systematically identify chemical constituents responsible for any insect repelling effect by utilizing a mosquito (Aedes aegypti (Linnaeus)) biting deterrent bioactivity-directed purification approach. Hydrodistilled oil from dried aerial parts of M. discoidea was the most bioactive crude extract generated and was as. Fractionation of this extract, followed by re-evaluation for mosquito biting deterrence using the K & D (Klun and Debboun) bioassay, produced many active fractions that were subsequently evaluated by spectroscopic techniques and the most active compounds were determined to be α-terpineol, spathulenol, and neryl isovalerate. A & K (Ali and Khan) large cage in vitro evaluation of pure compounds isolated from M. discoidea indicated α-terpineol to be the most active compound providing complete protection at 25 μg/cm2. This is the first report on the mosquito repellency of neryl isovalerate and scientific evidence reported here validates the traditional use of M. discoidea as a biting-insect deterrent.
Collapse
Affiliation(s)
- Charles L. Cantrell
- Natural Products Utilization Research Unit, United States Department of Agriculture, Agricultural Research Service, University, Mississippi, United States of America
- * E-mail:
| | - Abbas Ali
- National Center for Natural Products Research, The University of Mississippi, University, Mississippi, United States of America
| | - A. Maxwell P. Jones
- Gosling Research Institute for Plant Preservation, Department of Plant Agriculture, University of Guelph, Guelph, Ontario, Canada
| |
Collapse
|
12
|
El-Gamal A, Al-Massarani S, Fawzy G, Ati H, Al-Rehaily A, Basudan O, Abdel-Kader M, Tabanca N, Becnel J. Chemical Composition of Buddleja polystachya Aerial Parts and its Bioactivity against Aedes aegypti. Nat Prod Res 2017; 32:2775-2782. [DOI: 10.1080/14786419.2017.1378213] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Ali El-Gamal
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
- Faculty of Pharmacy, Department of Pharmacognosy, Mansoura University, Mansoura, Egypt
| | - Shaza Al-Massarani
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Ghada Fawzy
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
- Faculty of Pharmacy, Department of Pharmacognosy, Cairo University, Cairo, Egypt
| | - Hanan Ati
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Adnan Al-Rehaily
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Omer Basudan
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Maged Abdel-Kader
- Department of Pharmacognosy, College of Pharmacy, Sattam Bin Abdulaziz University, Alkharj, Saudi Arabia
| | - Nurhayat Tabanca
- USDA-ARS, Subtropical Horticulture Research Station, Miami, FL, USA
| | - James Becnel
- USDA, ARS, Center for Medical, Agricultural and Veterinary Entomology, Gainesville, FL, USA
| |
Collapse
|