The hippocampus plays an important role in cognitive processes, including memory and spatial orientation, in birds. The hippocampus undergoes seasonal change in food-storing birds and brood parasites, there are changes in the hippocampus during breeding, and further changes occur in some species in association with migration. In food-storing birds, seasonal change in the hippocampus occurs in f...

Methamphetamine (METH) abuse causes neurodegeneration. Medicinal herb such as crocin has neuroprotective properties. The current study evaluates the role of CREB-BDNF signaling pathway in mediating the neuroprotective effects of crocin against METH-induced neurodegeneration in rats. Sixty adult male rats were divided randomly into group 1 and group 2 which received 0.7 mL/rat ...

schizophrenia affects 1% of population. neonatal ventral hippocampus lesion (nvhl) model of schizophrenia designed in 1993 by lipska and is a widely studied developmental animal model of schizophrenia. nvhl rats mimic many of the symptoms of schizophrenia in detail. we studied this model in molecular level and reelin expression in it. reelin is an extracellular matrix glycoprotein that regulate...

hippocampus is essentially involved in learning and memory processes, and is known to be a target for androgen actions. the high density of the androgen receptors in hippocampus shows that there must be some relationship between androgens and memory. androgen effects on spatial memory are complex and contradictory. some evidence suggests a positive correlation between androgens and spatial memo...

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 receiv...

introduction: a close link between spreading depression (sd) and several neurological diseases such as epilepsy could be demonstrated in many experimental studies. epilepsy is among the most common brain disorders. despite a large number of investigations, its mechanisms have not been yet well elucidated. hippocampus is one of the important structures involved in seizures. the aim of this study...

Background and Objective: Temporal lobe epilepsy is hallmarked with neuronal degeneration in some areas of hippocampus and mossy fiber sprouting in dentate area. Considering some evidences on neuroprotective and antioxidant activity of silymarin (SM), this study was undertaken to evaluate the preventive effect of this agent on structural changes in hippocampus of kainate-epileptic rats. Materia...