Bioactivity of Argentinean Essential Oils Against Permethrin-Resistant Head Lice,<i>Pediculus humanus capitis</i>

Toloza, Ariel Ceferino; Zygadlo, Julio Alberto; Biurrun, Fernando; Rotman, Alicia D.; Picollo, María Inés

doi:10.1673/031.010.14145

Cited by 34 publications

(29 citation statements)

References 29 publications

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“…All head lice of the negative control group survived during the observation period. Significant differences in fumigant activity against head lice were found among the essential oils from the native and exotic plant species and the most effective essential oils were Cinnamomum porphyrium, followed by Aloysia citriodora (chemotype 2), and Myrcianthes pseudomato, with KT(50) values of 1.12, 3.02 and 4.09, respectively (Toloza et al 2010a). The fumigant and repellent properties of essential oils tested against permethrin-resistant head lice and the most effective oil was from Myrcianthes cisplatensis (Myrtaceae) with a time to 50% knockdown (KT 50 ) of 1.3 min, followed by Eucalyptus cinerea, Eucalyptus viminalis, and Eucalyptus saligna with KT 50 values of 12.0, 14.9, and 17.4 min, respectively (Toloza et al 2006).…”

Section: Resultsmentioning

confidence: 99%

Synthesis of pediculocidal and larvicidal silver nanoparticles by leaf extract from heartleaf moonseed plant, Tinospora cordifolia Miers

Jayaseelan¹,

Rahuman²,

Rajakumar³

et al. 2011

Parasitol Res

206

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Insecticide resistance and inadequate attention to the application instructions of topical pediculicides are common reasons for treatment failure. Essential oils or plant extracts are good and safe alternatives due to their low toxicity to mammals and easy biodegradability. The present study was carried out to establish the pediculocidal and larvicidal activity of synthesized silver nanoparticles (AgNPs) using leaf aqueous extract of Tinospora cordifolia Miers (Menispermaceae) against the head louse Pediculus humanus capitis De Geer (Phthiraptera: Pediculidae) and fourth instar larvae of malaria vector, Anopheles subpictus Grassi and filariasis vector, Culex quinquefasciatus Say (Diptera: Culicidae). We reported the aqueous plant extract and synthesized AgNPs against head lice and vectors. Direct contact method was conducted to determine the potential of pediculocidal activity. The synthesized AgNPs characterized by UV-vis spectrum, scanning electron microscopy, Fourier transform infrared, and X-ray diffraction. Head lice and mosquito larvae were exposed to varying concentrations of aqueous extracts and synthesized AgNPs for 24 h. The results suggest that the optimal times for measuring mortality effects of synthesized AgNPs were 33% at 5 min, 67% at 15 min, and 100% after 1 h. The maximum activity was observed in the synthesized AgNPs against lice, A. subpictus and C. quinquefasciatus (LC(50) = 12.46, 6.43 and 6.96 mg/L; r (2) = 0.978, 0.773 and 0.828), respectively. The findings revealed that synthesized AgNPs possess excellent anti-lice and mosquito larvicidal activity. These results suggest that the green synthesis of AgNPs have the potential to be used as an ideal ecofriendly approach for the control of head lice and vectors.

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Section: Resultsmentioning

confidence: 99%

Synthesis of pediculocidal and larvicidal silver nanoparticles by leaf extract from heartleaf moonseed plant, Tinospora cordifolia Miers

Jayaseelan¹,

Rahuman²,

Rajakumar³

et al. 2011

Parasitol Res

206

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“…Consequently, the use of naturally occurring insecticidal compounds could be an attractive alternative to control head lice, including those which are resistant to pesticides [14]. Many scientific studies have proposed the use of various natural compounds, with essential oils having been shown to have different activities such as repellent, ovicidal, and adulticide properties in a variety of insect species, including head lice [3,11,13,[15][16][17][18][19][20][21][22][23][24][25][26][27]. Essential oils and terpenes have also been used in combination with conventional insecticides, and the results of these experiments have demonstrated an increase in the pediculicide properties of synthetic compounds [15,28].…”

Section: Licementioning

confidence: 99%

“…shown different results as pediculicidal agents [3,11,20,22,[24][25][26][28][29][30][31][32][33]. Among the components of essential oils, 1,8-cineole, anisole, limonene, -pinene, linalool, menthone, -pinene, pulegone, and myrcene have demonstrated fumigant activity (KT 50 < 53 min) whereas eugenol, borneol, menthol, isomenthol, anethole, camphor, carvone, menthyl acetate, linalyl acetate, thymol, p-cymene, -terpinene, -terpineol, and 4-terpineol had no effect (KT 50 > 60 min) [3,11,13,19,20].…”

Section: Terpenes Against Adult Head Lice Essential Oils Havementioning

confidence: 99%

Terpenes: Natural Products for Controlling Insects of Importance to Human Health—A Structure-Activity Relationship Study

Dambolena

Zunino

Herrera

et al. 2016

Psyche: A Journal of Entomology

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Many insects affect food production and human health, and in an attempt to control these insects the use of synthetic insecticides has become widespread. However, this has resulted in the development of resistance in these organisms, human diseases, contamination of food, and pollution of the environment. Plants natural products and essential oil components such as terpenes and phenylpropenes have been shown to have a significant potential for insect control. However, the molecular properties related to their insecticidal activity are not well understood. The purpose of this review is to provide an overview of the toxicity of terpene compounds against three insects of importance to human health: lice, cockroaches, and Triatominae bugs and to evaluate which molecular descriptors are important in the bioactivity of terpenes. For the insects studied, quantitative structure-activity relationship (QSAR) studies were performed in order to predict the insecticidal activity of terpene compounds. The obtained QSAR models indicated that the activity of these compounds depends on their ability to reach the targets and to interact with them. The QSAR analysis can be used to predict the bioactivities of other structurally related molecules. Our findings may provide an important contribution in the search for new compounds with insecticidal activity.

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“…ectoparasites of humans and house animals. 3 Essential oils/extracts from natural sources have exhibited significant pediculicidal activity in filter paper diffusion bioassay. 7 Hence, in this research work filter paper diffusion bioassay was used to evaluate pediculicidal activity of HEACL.…”

Section: Safety and Pediculicidal Activity Of Heaclmentioning

confidence: 99%

“…2e4 Traditionally, the main treatment to control head lice is chemicals which include a wide variety of neurotoxic synthetic insecticides such as DDT, lindane, malathion, carbaryl, permethrin and d-phenothrin. 3 Besides the side effects, repeated use of these insecticides has often resulted in the development of resistance and may lead to multiple treatments including overdoses which raise serious human health concerns. 4 Other most common strategies currently available include formulations of pesticides, combinations of herbs and use of lice combs.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of quality and efficacy of an ethnomedicinal plant Ageratum conyzoides L. in the management of pediculosis

Shailajan¹,

Wadke²,

Joshi³

et al. 2013

Journal of Young Pharmacists

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a b s t r a c tBackground: Infestation with the head louse, Pediculus humanus capitis, is one of the most common parasitic infestations of human worldwide. Traditionally, the main treatment for control of head lice is chemical control that includes wide variety of neurotoxic synthetic insecticides. The main difficulty posed in controlling the head louse infestation is increasing lice resistance to synthetic pediculicidal drugs. Plant-based drugs; especially essential oil components and standardized extracts have been suggested as an alternative source of materials for insect control. Ageratum conyzoides L. (Asteraceae) has been reported to possess antifungal and insecticidal properties. In the present research work, an attempt has been made to evaluate in vitro pediculicidal activity of A. conyzoides. Methods: A filter paper diffusion bioassay was carried out in order to determine the pediculicidal activity of different extracts of A. conyzoides. Results: The study elucidates the active plant part and suitable extract responsible for the therapeutic efficacy of this plant in the management of pediculosis. Conclusion: Findings of the present study indicate the potential of A. conyzoides extract to be included in the formulations as a pediculicidal agent.

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Bioactivity of Argentinean Essential Oils Against Permethrin-Resistant Head Lice,Pediculus humanus capitis

Cited by 34 publications

References 29 publications

Synthesis of pediculocidal and larvicidal silver nanoparticles by leaf extract from heartleaf moonseed plant, Tinospora cordifolia Miers

Synthesis of pediculocidal and larvicidal silver nanoparticles by leaf extract from heartleaf moonseed plant, Tinospora cordifolia Miers

Terpenes: Natural Products for Controlling Insects of Importance to Human Health—A Structure-Activity Relationship Study

Evaluation of quality and efficacy of an ethnomedicinal plant Ageratum conyzoides L. in the management of pediculosis

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