Track topics on Twitter Track topics that are important to you
Protocatechuic acid (PCA) is a phenolic compound believed to have neuroprotective and procognitive activity. D-Galactose (D-Gal) is a sugar, which administered to mammals can induce cognitive deficits. The first aim of this study was to confirm the effectiveness of D-Gal administered orally in inducing cognitive impairment in rats and describe how it affects the concentration of neurotransmitters in rats' brain. The second aim was to evaluate the influence of PCA on learning, memory and neurotransmission in D-Gal-exposed rats. Memory impairment was induced by long-term administration of D-Gal (100 mg/kg body weight/day) directly via oral gavage. PCA (50 or 100 mg/kg body weight/day, respectively) was administered in drinking water. Morris Water Maze test (MWM) to assess learning and spatial memory was initiated after 38 days of treatment and lasted for 10 days. The concentrations of monoamines and their metabolites were evaluated in selected brain regions using high performance liquid chromatography. D-Gal significantly impaired cognitive performance during the acquisition and recall of MWM compared to control rats and changed concentrations of cortical serotonin as well as its cortical and hippocampal turnover. The turnover of dopamine was also influenced by D-Gal. Simultaneously, PCA was found to improve retrieval of acquired information in MWM and to restore brain serotonergic and dopaminergic turnover dysregulated by D-Gal. These findings confirm the usefulness of oral D-Gal in eliciting rat model of mild memory impairment and show that long-term administration of PCA can be beneficial in reversing detrimental changes related to cognitive deficiencies.
This article was published in the following journal.
Name: Behavioural brain research
The hippocampus encodes memories for past events, but the nature of the hippocampal code subserving this function remains unclear. A prevailing idea, strongly supported by hippocampal physiology, is t...
Hippocampal oscillations arise from coordinated activity among distinct populations of neurons and are associated with cognitive functions. Much progress has been made toward identifying the contribut...
The loss of cholinergic neurons has been a major issue in researches on Alzheimer's disease (AD) for about 40 years. Therefore, the scopolamine model of amnesia has been widely used in AD researches. ...
This study examined whether selective neonatal hippocampal lesions in monkeys (), which left the surrounding cortical areas (parahippocampal cortex) intact, affect contextual learning and memory compa...
Sleep, in addition to its brain restorative processes, plays an important role in memory transfer from its temporary store in the hippocampus to the more permanent storage in the neocortex. Alzheimer'...
OBJECTIVES: I. Evaluate whether chronic hypercortisolemia is specifically toxic to hippocampal cells and causes structural reduction of hippocampal volume in patients with Cushing's syndr...
The study aimed to investigate the memory preservation and neurocognitive function protection of hippocampal avoidance whole brain radiotherapy (HA-WBRT) among people who speak Mandarin Ch...
Based on the hypothesis that high-frequency repetitive transcranial magnetic stimulation(rTMS) on dorsolateral prefrontal cortex(DLPFC) and left parietal cortex(LPC) could normalise cognit...
Cushing's disease is a state of chronic endogenous glucocorticoid excess. Cushing's disease is responsible for increased morbidity and mortality. Recent studies have pinpointed the frequen...
The purpose of this study is to examine how a part of the brain called the hippocampus contributes to memory changes that occur with aging and Alzheimer's disease (AD). Memory problems ar...
Loss of higher cortical functions with retained awareness due to multiple cortical or subcortical CEREBRAL INFARCTION. Memory, judgment, attention span, and impulse control are often impaired, and may be accompanied by PSEUDOBULBAR PALSY; HEMIPARESIS; reflex abnormalities, and other signs of localized neurologic dysfunction. (From Adams et al., Principles of Neurology, 6th ed, p1060)
Cortical malformations secondary to abnormal cortical maturation after CELL MIGRATION in NEUROGENESIS. This group includes injury to the cortex during later stages of cortical development such as POLYMICROGYRIA and focal cortical dysplasias.
A flavoprotein that catalyzes the synthesis of protocatechuic acid from 4-hydroxybenzoate in the presence of molecular oxygen. EC 18.104.22.168.
Type of declarative memory, consisting of personal memory in contrast to general knowledge.
A curved elevation of gray matter extending the entire length of the floor of the temporal horn of the lateral ventricle. The hippocampus, subiculum, and DENTATE GYRUS constitute the hippocampal formation. Sometimes authors include the ENTORHINAL CORTEX in the hippocampal formation.
Selective serotonin reuptake inhibitors SSRIs
Serotonin and norepinephrine reuptake inhibitors (SNRIs) are a class of medications that are effective at easing depression symptoms. SNRIs are also sometimes used to treat other conditions such as anxiety and nerve pain. How SNRIs work Serotonin (se...
Within medicine, nutrition (the study of food and the effect of its components on the body) has many different roles. Appropriate nutrition can help prevent certain diseases, or treat others. In critically ill patients, artificial feeding by tubes need t...