Acute titanium dioxide nanoparticles exposure impaired spatial cognitive performance through neurotoxic and oxidative mechanisms in Wistar rats.

Context: Titanium dioxide nanoparticles (TiO-NPs) are used in many commercial products. However, their effects on human and animal organism remained to be clarified.

Objective: The present study aimed to investigate the effects of TiO-NPs on the behavioural performance, monoamine neurotransmitters and oxidative stress in the rat brain.

Aluminium oxide nanoparticles compromise spatial learning and memory performance in rats.

Recently, the biosafety and potential influences of nanoparticles on central nervous system have received more attention. In the present study, we assessed the effect of aluminium oxide nanoparticles (AlO-NPs) on spatial cognition. Male Wistar rats were intravenously administered AlO-NP suspension (20 mg/kg body weight/day) for four consecutive days, after which they were assessed.

Microglial cells (BV-2) internalize titanium dioxide (TiO2) nanoparticles: toxicity and cellular responses.

Because of their whitening and photocatalytic effects, titanium dioxide nanoparticles (TiO2-NPs) are widely used in daily life. These NPs can be found in paints, plastics, papers, sunscreens, foods, medicines (pills), toothpastes, and cosmetics. However, the biological effect of TiO2-NPs on the human body, especially on the central nervous system, is still unclear.

Acute exposure to zinc oxide nanoparticles does not affect the cognitive capacity and neurotransmitters levels in adult rats.

With the industrialization and increasing public exposure, nano-sized materials have received much more concerns. However, the impact of zinc oxide nanoparticles (ZnO-NPs) on the human body, especially on the central nervous system is extremely limited. The aim of this study is to investigate the effects of ZnO-NPs on the behavioral performances and the brain contents of some monoamines neurotransmitters.

Effect of TiO2 nanoparticles on emotional behavior and biochemical parameters in adult Wistar rats.

The rapidly developing field of nanotechnology is becoming a potential source for human exposure to nanoparticles. Titanium dioxide (TiO2) nanoparticles have been widely produced in industrial processes for several years. The aim of this study was to investigate the effects of TiO2 nanoparticles on plasmatic biochemical parameters and the emotional behavior in adult Wistar rats.