Acaricidal activity of extracts of neem (Azadirachta indica) oil against the larvae of the rabbit mite Sarcoptes scabiei var. cuniculi in vitro

Content of trace elements and chromium speciation in Neem powder and tea infusions

“…The composition of the enriched 50 Cr isotope was determined to be 96.04 ± 0.05%, 3.40 ± 0.02%, 0.25 ± 0.01% and 0.03 ± 0.01% for the isotopes 50, 52, 53 and 54, respectively, while of that of the enriched 53 Cr isotope 0.040 ± 0.005%, 2.81 ± 0.02% 52, 95.58 ± 0.02% and 0.160 ± 0.005% for the isotopes 50, 52, 53 and 54, respectively. A natural isotopic abundance Cr(III) solution (Cr(NO 3 ) 3 in 2-3% HNO 3 ) containing 1000 ± 4 mg L −1 of Cr and a natural abundance Cr(VI) solution (K 2 CrO 4 in water) containing 1000 ± 2 mg L −1 of CrO 4 2− were obtained from Merck. Ge (1000 ± 2 mg L −1 in water) and Sc (1000 ± 2 mg L −1 in 5% nitric acid), both purchased from Merck, were used as internal standards.…”

“…In aqueous solutions at pH below 4, Cr(III) exists as the [Cr(H 2 O) 6 ] 3+ species, which is eluted with the solvent front. In the pH range from 6 to 12, Cr(III) is present mainly as neutral Cr(OH) 3 , a precipitate which is strongly adsorbed on the column resin [24,25]. Neutral Cr(III) complexes with different organic ligands are also retained by the column resin, while negatively charged Cr(III) complexes with organic acids are eluted at around 200 s and are well separated from Cr(VI) [22].…”

“…More than 135 chemical compounds have been isolated, but only a few have been tested for their medicinal properties [1]. Extracts from different parts of the Neem plant were found to have antifungal [2], acaricidal [3], antibacterial, antisecretorial, antihaemorrhagic [4], antiviral [5], larvicidal [6], insecticidal and antifeedant [7] activities. Due to its beneficial properties, Neem is widely used in the personal hygiene and cosmetic industry, and in insecticide and pesticide production.…”

Evaluation of Acaricidal Effect of Ethnoveteinary Medicinal Plant by in vivo and in vitro against Sarcoptes scabiei var. caprae of Infected Goats in North Shoa, Oromia Regional State, Ethiopia

“…The seed of this plant was used as purgatives, anthelmintic and molluscicides [53]. In the current study the extract was found to have goodacaricidal efficacy similar to conventional drugs in vitro against Sarcoptes scabiei var.…”

Toxicological evaluation of neem (Azadirachta indica) oil: Acute and subacute toxicity

“…acaricidal, antibacterial, antifungal, antimalarial, antiparasitic, anti-inflammatory as well as immunemodulatory properties in different animal species (Mulla and Su, 1999;Biswas et al, 2002;Brahmachari, 2004;Gossé et al, 2005;Du et al, 2007Du et al, , 2008Du et al, , 2009Xu et al, 2010;Zhang et al, 2010). In the present study, we describe a range of toxicological tests carried out to investigate the biosafety of neem oil.…”