نتایج جستجو برای: passive avoidance memory
تعداد نتایج: 361109 فیلتر نتایج به سال:
background: it has been reported that epilepsy is a disorder of the central nervous system that causes memory impairment. this study examines the role of the aqueous extract of boswellia on the learning disability of the pentylenetetrazol (ptz)‑induced kindled rats. methods: in this experimental study, 64 male rats were used. kindling seizures were induced by three injections of 25 mg/kg of ptz...
Introduction: Cholinergic systems are involved in learning and memory. Scopolamine, a muscarinic acetylcholine receptor antagonist, is used as a standard/ reference drug for inducing cognitive deficits in healthy humans and animals. The purpose of this study was to evaluate the effects of scopolamine on avoidance memory and number of neurons in rat’s hippocampus. . Methods: Thirty five male alb...
Introduction: Evidence indicates that morphine impairs memory process. Ghrelin hormone has been linked to learning and memory processes and modulates reward properties of addictive drugs. In this study we examined the role of middle septal ghrelin receptors in the effects of morphine on memory consolidation in passive avoidance learning. Materials & Methods: In this experimental study, 91 ma...
Background: Excitotoxicity is a common pathological process in neurodegenerative diseases associated with overactivity of N-methyl-D-aspartate (NMDA) and P/Q type voltage-gated calcium (Cav2.1) channels. Omega-lycotoxin-Gsp2671g is a therapeutic tool to modulate overactive Cav2.1 (P/Q type) channels. Omega-lycotoxin binds to Cav2.1 channels with high affinity and selectivity. This study aimed t...
Introduction: Alzheimer’s disease (AD) is a enfeeble neurodegenerative disorder characterized by increased β-amyloid (Aβ) deposition and neuronal dysfunction leading to impaired learning and recall. Among proposed risk factors, impaired cholinergic transmission is a main cause for incidence of disease. Methods: In the present study, effects of the intracerebroventricularly administration of an ...
There is growing interest in flavonoids for their wide array of biological actions. In neurodegenerative disorders these naturally occurring polyphenolic compounds, are known to inhibit proinflammatory mediators such as in TNF–? and IL-6 in lipopolysaccharide (LPS) stimulated neuronal degeneration, which are associated with Alzheimer’s and Parkinson’s disease. Recent studies on flavonoids have ...
Background and Objective: Antioxidants along with other active biological effects of Green Tea and Zataria multiflora boiss deserve paramount consideration. This study was an attempt to evaluate the effects of Green Tea and Zataria multiflora boiss on passive avoidance learning and hippocampus neurogenesis in Wister male rats. Materials and Methods: Upon assigning the rats to three groups of...
Introduction: Sub-chronic swim stress is known to induce a prolonged hyperalgesia, which is mediated through NMDA and opioid systems. Nitric oxide is a soluble gas, which acts as a retrograde messenger that modulates the release of mentioned neurotransmitters. It is also involved in nociception and memory. The aim of this study was to evaluate the role of NO pathway in nociception and memory...
Introduction: Trimethyltin (TMT) intoxication is associated with damage to the cholinergic system in the hippocampus. The aim of this study was to evaluate the effect of trans-cinnamic acid on cognitive deficit and cell damage in CA1/CA3 regions of the hippocampus, as well as measure the activity of acetyl choline esterase (AChE) in the hippocampus of a rat model of Alzheimer’s disease (AD). Ma...
There is growing interest in flavonoids for their wide array of biological actions. In neurodegenerative disorders these naturally occurring polyphenolic compounds, are known to inhibit proinflammatory mediators such as in TNF–? and IL-6 in lipopolysaccharide (LPS) stimulated neuronal degeneration, which are associated with Alzheimer’s and Parkinson’s disease. Recent studies on flavonoids have ...
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