The Toxicity of Essential Oils From Three Origanum Species Against Head Louse, Pediculus humanus capitis.

Autor: Arserim SK; Vocational School of Health Services, Manisa Celal Bayar University, Manisa, Turkey. suhaarserim@hotmail.com., Cetin H; Department of Biology, Faculty of Science, Akdeniz University, Antalya, Turkey., Yildirim A; Department of Parasitology, Faculty of Medicine, Manisa Celal Bayar University, Manisa, Turkey., Limoncu ME; Vocational School of Health Services, Manisa Celal Bayar University, Manisa, Turkey., Cinbilgel I; Department of Tourism Guidance, Manavgat Tourism Faculty, Akdeniz University, Antalya, Turkey., Kaya T; Department of Parasitology, Faculty of Medicine, Mustafa Kemal University, Hatay, Turkey., Ozbel Y; Department of Parasitology, Faculty of Medicine, Ege University, Izmir, Turkey., Balcioglu IC; Department of Parasitology, Faculty of Medicine, Manisa Celal Bayar University, Manisa, Turkey.
Jazyk: angličtina
Zdroj: Acta parasitologica [Acta Parasitol] 2021 Sep; Vol. 66 (3), pp. 1003-1011. Date of Electronic Publication: 2021 Mar 26.
DOI: 10.1007/s11686-021-00370-y
Abstrakt: Purpose: Pediculosis caused by human head louse, Pediculus humanus capitis De Geer (Anoplura: Pediculidae) is a public health problem with a high prevalence, especially among children in school age. Different chemical pediculicides (insecticides) are used against lice but the repeated application of these pediculicides for the treatment of P. humanus capitis infestation in the past decades has resulted in the development of resistance. The plant essential oils have been used as alternative sources of lice treatment agents. Pediculicidal activity of the essential oils of three Origanum species (O. onites, O. majorana and O. minutiflorum) against P. humanus capitis adults was examined in this study.
Methods: Essential oils from aerial parts of three Origanum species were obtained by hydrodistillation using a Clevenger-type apparatus. P. humanus capitis specimens used were obtained from infested children by combing method at primary schools. Adult lice were exposed to three dilutions (1%, 0.5% and 0.1% w/v) of tested oils for 5 min using the adult immersion test.
Results: According to the results, all Origanum essential oils at 1% concentration have been shown to significantly decrease the rate of limb, bowel and abdomen movements, producing more than 90% mortality after 12 h.
Conclusion: Our results indicated that Origanum essential oils can be used for the development of new pediculicides against head louse.
(© 2021. Witold Stefański Institute of Parasitology, Polish Academy of Sciences.)
Databáze: MEDLINE
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