abstract pollution is a world problem with serious consequences. heavy metals are an important group of these contaminants and enter aquatic ecosystems from anthropogenic and natural sources and animal health and systems are affected. in this study, the effect of lead exposure (3 mg/l concentration, 30 days) on activity of tissue enzymes, including acetyl cholinesterase, alanine aminotransferas...

Objective: The present study aims to investigate the effect of emotions (negative and positive affects) and gender on the activity of different brain regions and their relationship with personality traits of extraversion, introversion, neuroticism, and stability. Methods: The study participants were 33 right-handed volunteer undergraduate students (17 males and 16 females). Our stimuli were tw...

background: toxoplasma gondii is the most common parasite causing latent cerebral infections in human. it has been shown that some anti-psychotic drugs are able to inhibit the proliferation of the parasite in in vitro study. there is very limited data regarding the inhibitory effect of anti-psychotics on toxoplasma in in vivo . in this study, we evaluated anti- toxoplasma activity of fluphenazi...

Functional magnetic resonance imaging (fMRI) is a safe and non-invasive way to assess brain functions by using signal changes associated with brain activity. The technique has become a ubiquitous tool in basic, clinical and cognitive neuroscience. This method can measure little metabolism changes that occur in active part of the brain. We process the fMRI data to be able to find the parts of br...

the activity of aspartate aminotransferase a vitamin b6 containing enzyme was measured in the laysed synaptosomes prepared from rat brain, during development. administration of vitamin b6 increased the enzyme activity throughout development. the stimulating effect of this vitamin was prevented when the animals were previously treated with d-penicillamine. however, penicillamine alone had no eff...

cytomegalovirus is the leading viral cause of congenital disease, often producing serious neurological deficits. cmv attacks the developing central nervous system (cns) resulting in serious brain disorders that include microencephaly, epilepsy, deafness, microgyria, mental retardation, sensory loss, motor problems, and psychiatric disturbances. in addition, cmv is a clinically important opportu...

The activity of aspartate aminotransferase a vitamin B6 containing enzyme was measured in the laysed synaptosomes prepared from rat brain, during development. Administration of vitamin B6 increased the enzyme activity throughout development. The stimulating effect of this vitamin was prevented when the animals were previously treated with D-penicillamine. However, penicillamine alone had n...