The aim of this study was to investigate the histopathological changes in zebrafish larvae following embryonic exposure to nanoparticles of magnesium oxide (MgONPs). The toxicity of metal oxide nanoparticles is attracting increasing attention. Among these nanomaterials, MgONPs are particularly interesting as a low cost and environmentally-friendly material. Histological investigations are used ...

organophosphate insecticides such as diazinon are common to control pests in many agricultural fields that are located in the vicinity of fresh water resources. in this study male goldfish were exposed for 10 days at concentrations of 3 and 6 mg/ l diazinon (granules 10%) and after that histopathological effects of diazinon on some fish tissues were examined by light microscope. according this ...

background: nowadays use of specific antivenin for latrodectism is considered as the most effective treatment in the world. this study was undertaken to investigate the efficacy of specific antivenom against histopathological complications caused by latrodectus dahli venom on liver, heart and kidneys tissues within 72 h. methods: two groups were selected, each one contained 6 male new zealand r...

argas reflexus is considered obligate blood feeder that may cause skin redness and local swelling. for histopathological evaluation of biting site, pigeons were used as natural host species in this study. adult ticks were collected from urmia, north-west of iran and kept in a desiccator before their use in the experiment. sixteen pigeons were infested experimentally and were divided into 4 grou...

Tongue enlargement and mandibular prognathism are clinically recognized in almost all patients with acromegaly. An acromegaly-like rat model recently developed by exogenous administration of insulin-like growth factor I (IGF-I) was used to investigate morphological and histopathological changes in orofacial structures and to clarify whether these changes were reversible. Exogenous administratio...