Cytotoxic effects of extract of Acmella oleraceae (Jambú) in Rhipicephalus microplus females ticks

@article{deOliveira2016CytotoxicEO,
  title={Cytotoxic effects of extract of Acmella oleraceae (Jamb{\'u}) in Rhipicephalus microplus females ticks},
  author={Patr{\'i}cia Rosa de Oliveira and Karina Neoob de Carvalho Castro and Lu{\'i}s Adriano Anholeto and Maria Izabel Camargo Mathias},
  journal={Microscopy Research and Technique},
  year={2016},
  volume={79}
}
The present study analyzed the effects of different concentrations of the hexane extract of A. oleraceae (HEAO) (Jambú) on the germ cells of semi‐engorged Rhipicephalus microplus female ticks, through a morpho‐histological study, evaluating the effectiveness of the extract in the genesis of the individuals. To perform this analysis, 100 semi‐engorged females were divided into five groups with 20 individuals each: groups I and II, respectively constituted by distilled water control and 50… Expand
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Toxic action of Acmella oleracea extract on the male reproductive system of Amblyomma cajennense ticks.
TLDR
The cytotoxic potential of A. oleracea ethanolic extract (EEAO) (Jambu) was confirmed, signalizing the promising potential of the compound as a strategy to control ectoparasites in the near future. Expand
Morphological alterations in the ovaries of Amblyomma cajennense semi‐engorged ticks exposed to ethanolic extract of Acmella oleracea
TLDR
The results obtained in this study confirm the cytotoxic potential of the ethanolic extract of A. oleracea on the germ cells of semi‐engorged Amblyomma cajennense females, opening up the possibility to use this extract as an alternative to control these ectoparasites. Expand
Acaricidal activity of Acmella oleracea (Asteraceae) extract against Rhipicephalus microplus: What is the influence of spilanthol?
TLDR
The results demonstrate that the presence of spilanthol is an important factor for the acaricidal activity of A. oleracea extract. Expand
Cytotoxic effects of Satureja montana L. essential oil on oocytes of engorged Rhipicephalus microplus female ticks (Acari: Ixodidae)
TLDR
The most remarkable morphological changes found were: cytoplasmic vacuolation of germ cells, irregular and thicker chorion, irregular oocyte shape, ring‐shaped nucleolus, decrease in protein and carbohydrate content in oocytes, in addition to cellular changes in the oviduct and pedicel. Expand
Low concentrations of acetylcarvacrol induce drastic morphological damages in ovaries of surviving Rhipicephalus sanguineus sensu lato ticks (Acari: Ixodidae).
TLDR
The morphological changes in the ovaries may reduce the ticks' offspring production or generate descendants that will struggle to carry out essential biochemical processes during their lives, and acetylcarvacrol may be a promising alternative to control tick infestation by impairing the reproduction of this parasite. Expand
Effects of carvacrol on oocyte development in semi-engorged Rhipicephalus sanguineus sensu lato females ticks (Acari: Ixodidae).
TLDR
Data regarding the inhibition of oocyte development are unprecedented and indicate the use of carvacrol as a natural product with the potential to control R. sanguineus s.l. ticks. Expand
Sublethal concentrations of acetylcarvacrol strongly impact oocyte development of engorged female cattle ticks Rhipicephalus microplus (Canestrini, 1888) (Acari: Ixodidae).
TLDR
Sublethal concentrations of acetylcarvacrol demonstrated to impact the reproductive system of R. microplus by causing several damages in the female germ cells, probably contributing for a long-term control of tick infestation. Expand
In vitro efficacy of essential oils with different concentrations of 1,8-cineole against Rhipicephalus (Boophilus) microplus.
TLDR
Results show that other compounds interfere with 1,8-cineole action against the tick species Rhipicephalus (Boophilus) microplus, and essential oils showed high efficacy on engorged females at the 100.0 mg/mL concentration. Expand
Acaricidal activity of cashew nut shell liquid associated with essential oils from Cordia verbenacea and Psidium guajava on Rhipicephalus microplus
TLDR
CNSL was effective against engorged females and against larvae and in association against Rhipicephalus microplus, while the association at 50.0mg mL−1 had asignificant effect on both life stages of R. microplus. Expand
Botanical acaricides induced morphophysiological changes of reproductive and salivary glands in tick: A mini-review.
TLDR
The present mini-review focuses on studies dealing with morphophysiology changes of the reproductive system and the salivary gland of ticks exposed to botanical acaricides, with a view of expanding knowledge for the future integrative application of botanicals in tick control. Expand
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