background: this study aims to investigate the patterns of bioaccumulation and depuration of copper in the selected kidney and liver of capoeta fusca. methods: the fish were collected between september and november 2010 from a qanat in birjand. they were exposed to two types treatments with copper (0.25 and 0.75 mg/l) for a period of 41 days. the fish under study were exposed to the above-menti...

objective: chlorpyrifos (cpf) is a neurotoxic organophosphorus (op) insecticide. its mechanism of action includes oxidative stress, excitotoxicity, and inhibition of the acetylcholinesterase enzyme (ache). the aim of the present study is to investigate cpf toxicity in mature and immature cerebellar granule neurons (cgns), as well as its effect on glutamate induced excitotoxicity. materials and ...

The study determined the effect of intravenous administration of acutely toxic or sub-lethal doses of Na-oleate-coated Fe3O4 (OC-Fe3O4) nanoparticles (NPs) on liver structure and function in Wistar rats, compared to titanium dioxide (TiO2) NPs and saline-injected controls. The acute study, using a modified OECD 425 progressive dosing procedure, found LD50 values of 59.22 and 36.42 mg/kg for TiO...

Results: Flies exposed to multiple (sub-lethal) dose of PQ showed movement disorder characteristic of Parkinson’s disease (PD). The four natural antioxidants showed ameliorative effects against PQ neurotoxicity in the sub-acute model as seen in survivability, locomotor activity as well as oxidative stress markers including reactive oxygen species (ROS), lipid peroxidation and the endogenous ant...

background: there is unprecedented increase in the processing and packaging of many plant materials into food supplements, herbal medicine, skincare and cosmetic products for human needs. baphia nitida is used for topical skincare products. toluene, a toxic aromatic solvent, is increasingly being used in the production of these skincare and cosmetic products in many industries. this study asses...

Lethal and sub-lethal effects of a novel sulfoximine insecticide, sulfoxaflor, against Asian citrus psyllid and its primary parasitoid under laboratory and field conditions Gurpreet S. Brar, Xavier Martini & Lukasz L. Stelinski To cite this article: Gurpreet S. Brar, Xavier Martini & Lukasz L. Stelinski (2017) Lethal and sublethal effects of a novel sulfoximine insecticide, sulfoxaflor, against...

Innate attack to Schistosoma mansoni cercariae was evaluated in irradiated mice. It was observed that 70% of the larvae from mice sacrificed one day after whole body irradiation with 400 or 800 rads were surrounded by cluster reactivities, without difference from controls. Differences were apparent on day 5 after irradiation with sub lethal (400 rads) or lethal doses (800 rads) suggesting that ...