spreading depression (sd), discovered by leao in 1944, is a pathophysiological wave which propagates slowly in the brain (3 mm/min) and cause dramatic ionic and hemodynamic changes. sd appears to act through several mechanisms and receptors which have not completely understood. here, we studied the effect of inhibitory system in animal model of sd using immunohistochemistry technique. after imp...

introduction: the aim of this study was to get to a neurological evaluation of one of the persian music scales, homayoun, on brain activation of non-musician subjects. we selected this scale because homayoun is one of the main scales in persian classical music which is similar to minor mode in western scales. methods: this study was performed on 19 right handed subjects, aging 22-31. here some ...

The analysis of evoked potentials of sensorimotor cortex in response to electrical stimulation of n. ischiadicus shows that the extremal factor hypokinesia has a negative impact on the dynamics of formation of amplitudal and temporal characteristics since eyes openning in 2-weeks old rats. The most vulnerable process to the impact of hypokinesia is the first-positive phase, which disappears in ...

The present study included seroprevalence detection of Toxoplasma gondii in human and chickens (Gallus domesticus) AL-Door district, Salahdin province, the histological effects T. on some internal organs (brain, kidneys, liver muscles) from chickens. Positive result for toxoplasmosis was recorded 22.3% with highest prevalence positive IgG that reported 14.1%. Based gender, significant increasin...

Objective(s): Diabetes mellitus (DM) is a widespread metabolic disorder worldwide. Clinical physicians have found diabetic patients have mild to middle cognitive dysfunction and an alteration of brain monoaminergic function. This study explored the change in various patterns of behavioral models and brain monoamine function under streptozotocin (STZ)-induced type 1 diabetes.Materials and Method...

The knowledge of the optical properties biological tissues in a wide spectral range is highly important for development noninvasive diagnostic or treatment procedures. absorption coefficient one those properties, from which various information about tissue components can be retrieved. Using transmittance and reflectance measurements acquired ex vivo rabbit brain cortex samples allowed to calcul...

science-based or scientific interpretation of koran, that is, the accordance of koran to empirical sciences is of greater attraction for educated people specially the youth. for the man’s brilliant developments to achieve new horizons in sciences and discover the unknown in the past centuries, not only dominated him on nature more, but also had a deep effect on a muslim’s viewpoint of the world...

introduction: this study was conducted to determine the possible beneficial results of l-arginine on prefrontal cortex of rats which impressed by immobilization stress to define the synchronous impression of stress and nitric oxide (no) on evolution of prefrontal cortex of rats after birth. methods: forty-eight one month, male wistar rats were divided into two groups: stressed and non-stressed....

Objective(s) Psychotropic medications produce their effects, in part, through increasing neurotrophin levels in the brain. Since studies concerning nerve growth factor (NGF) analysis have been limited in scope, in the current experiments we investigated the effects of diverse psychotropic agents on NGF protein levels in various brain regions of rat. Materials and Methods Male Wistar rats rec...