Plant extracts and their components as potential control agents against human head lice

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Plant extracts and their components as potential control agents against human head lice

Tema

PEDICULOSIS
PRODUCTOS NATURALES
ENFERMEDADES PARASITARIAS
2008
BIBLIOGRAFÍA NACIONAL QUÍMICA

Abstract

The head lice, Pediculus humanus capitis (Phthiraptera:Pediculidae), is an obligate ectoparasite of humans that causes pediculosis capitis, a nuisance for millions of people worldwide, with high prevalence in children. Pediculosis capitis has been treated by methods that include the physical remotion of lice, various domestic treatments and conventional insecticides. None of these methods render complete protection, and there is clear evidence for the evolution of resistance and cross-resistance to conventional insecticides. Non-toxic alternative options are hence needed for head lice treatment and/or prevention, and natural products from plants, especially essential oils (EOs), are good candidates for safer control agents that may provide good anti-lice activity and low levels of evolved resistance. A few EOs have been tested as repellents with promissory results, although often in vitro tests and clinical trials produce contradictory results. A handful of fixed extracts and several EOs and their individual components have also been tested as contact pediculicides or fumigants. The studies have focused mainly on plant families characterized for the production of EOs. While many EOs and individual compounds showed pediculicide activity, comparing results is difficult due to the diverse bioassay methodologies. Studies of anti-lice activity of individual EO components provide the basis for preliminary conclusions of structure–activity relationships, although no clear patterns can yet be drawn. We here attempt to provide a concise compilation of the available information on anti-lice activity of plant extracts and plant-derived compounds, which we hope may be of help for future developments in this area.

Autor

Gonzalez, Lucia

Fuente

Phytochemistry Reviews v.7, no.1, 2008. -- p.51-63

Editor

Springer Netherlands

Fecha

2008

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Tipo

Artículo

Identificador

DOI :10.1007/s11101-006-9026-0
Fecha de agregación
November 13, 2014
Colección
Bibliografía Nacional Química
Tipo de Elemento
Document
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Citación
Rossini, Carmen, “Plant extracts and their components as potential control agents against human head lice,” RIQUIM - Repositorio Institucional de la Facultad de Química - UdelaR, accessed September 30, 2020, http://riquim.fq.edu.uy/items/show/2014.
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