نتایج جستجو برای: passive avoidance memory
تعداد نتایج: 361109 فیلتر نتایج به سال:
Introduction: Alzheimer’s disease (AD) is a common progressive, neurodegenerative disorder with no preventive or curative therapy until now. Use of natural products as an important source of neuroprotective flavonoids against AD has been considered recently. In this study, the effect of Mespilus germanica leaves (MGL) flavonoids treatment on memory dysfunction and apoptosis in the amyloid beta ...
Objective(s) Since diabetes mellitus is accompanied by cognitive impairment in diabetic patient and animal models and since lipids play important roles in neuronal membrane composition, structure and function; we intended to evaluate the effect of dietary butter oil on passive avoidance memory of streptoztosin (STZ)-induced diabetic rats in this study. Materials and Methods Thirty six adult ...
Background: The brain in exposure to irritating factors may lead to production of some chemical factors and proinflammatory cytokines and neuroinflammation. Over time, the chronic neuroinflammation will cause some cognitive disorders and neurodegenerative diseases. The present study studied the effect of acetyl L -carnitine on cognitive and cellular disorders derived from lipopolysaccharide (LP...
Introduction: Aging is the major risk factor for neurodegenerative diseases and oxidative stress is involved in the pathophysiology of these diseases. Oxidative stress can induce neuronal damages and modulate intracellular signaling, ultimately leading to neuronal death by apoptosis or necrosis. Methods: In this study, we investigated the possible antioxidant and neuroprotective properties o...
Background and Objective: Diabetes mellitus (DM) affects synaptic plasticity in the hippocampus, leading to impairments in learning and memory. L-carnosine, an endogenous dipeptide, is reported to exhibit anti-diabetic and antioxidant effects. Therefore, this study was designed to evaluate its effect on learning and memory in diabetic rats. Materials and Methods: In the present study, male Wis...
The effect of saffranal on intracerebroventricular strepto-zotocin-induced cognitive deficits in rat
Background and Objective: Intracerebroventricular (ICV) injection of streptozotocin (STZ) causes cognitive impairment in rats. The beneficial effect of saffron main component, safranal was investigated on ICV STZ-induced learning, memory, and cognitive impairment in male rats. Materials and Methods: For this purpose, rats were injected with ICV STZ bilaterally, on days 1 and 3 (3 mg/kg). The ST...
OBJECTIVE: Diabetes is a metabolic disorder which impairs carbohydrate and lipid metabolism. It is accompanied by cognition impairment in diabetic patients and animal models. Lipids play an important role in nerve membrane composition, structure and function. This study was designed to evaluate the effect of dietary butter and sesame oils on passive avoidance memory of streptozotocin (STZ) diab...
Previous work has shown that the effect of opioid-receptor blockade on memory modulation is critically dependent upon the intensity of stress. The current study determined the effect of adrenergic-receptor blockade on memory modulation under varied levels of stress and then compared the effect of adrenergic-receptor blockade under intense stress to that of a) opioid-receptor blockade and b) con...
Background and Objective: Epileptic seizures lead to a problem in learning and memory. In view of the protective effect of ascorbic acid (vitamin C), the aim of this study was to investigate the effect of this substance on impairment of learning and memory in an experimental model of temporal lobe epilepsy in kainate-epileptic rat. Materials and Methods: In this experimental study, rats were...
PURPOSE Previous studies have shown that physical activity improves learning and memory. Present study was performed to determine the effects of short term and long term treadmill exercise on learning, memory consolidation and retrieval of passive avoidance learning in an animal model. METHODS In this study fifty male Wistar rats with 3-4 months of age were randomly divided into five groups (...
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