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... TheChongmyungtang (CMT; the combination ofAcorus gramineus, polygala tenuifolia andPoria cocos) has been recognized to possess the preventive effect against several neurologic disorders in human. In this study, we examined the effect of CMT on the three parameters associated with kainic acid (KA)-induced neurotoxicities; seizure/mortality, increased fos-related antigen (FRA) and glial fibrillary a ...
dietary minerals; trace elements; mineral metabolism; energy metabolism; health promotion; immunity; neuroprotective effect; brain; insulin secretion; glucose tolerance; lipolysis; glycemic effect; nutrition knowledge
Abstract:
... The term ultratrace element has been defined as an element with an established, estimated, or suspected requirement generally indicated by μg/day for humans. Between 1970 and 1984, it was suggested that 11 elements should be added to the list of ultratrace elements that included chromium, molybdenum, and selenium; these elements were arsenic, boron, bromine, cadmium, fluorine, lead, lithium, nicke ...
... Acute treatment with valproate and Li⁺ was found to protect cultured cerebellar granule cells against apoptosis induced by low K⁺ (5 mm). Because the protection was unaffected by MK801 (N‐methyl‐d‐aspartate receptor inhibitor), an increase in glutamate release cannot be responsible for the observed neuroprotection. Insulin also protects against low‐K⁺‐induced apoptosis of cerebellar granule cells. ...
... The female sex hormone estrogen (17βâestradiol; E2) may function as a neurohormone and has multiple neuromodulatory functions in the brain. Its potent neuroprotective activities can be dependent and independent of estrogen receptors (ERs). In addition, E2 influences the processing of the amyloid β precursor protein (APP), one central step in the pathogenesis of Alzheimer's disease. Here, we sh ...
Withania somnifera; albino; brain; neuroprotective effect; powders; rats; roots; India
Abstract:
... The neuroprotective effects of W. somnifera were studied on stressed adult female Swiss albino rats. Experimental rats were subjected to immobilization stress for 14 h and were treated with a root powder extract of W. somnifera available as Stresscom capsules (Dabur India Ltd). Control rats were maintained in completely, non stressed conditions. Thionin stained serial coronal sections (7 μm) of br ...
... With the increasing demands placed on our society to perform better for longer, in addition to the large increase in the old segment of our population, a race has begun to forestall or reverse the ubiquitous declines that emerge from growing old. Currently, little is known about the mechanisms responsible for the neuronal degeneration seen during both normal aging and neurodegenerative disease; ho ...
manganese; neuroprotective effect; neurophysiology; cocoa butter; mineral metabolism; dietary fat; women; nutrient excess; nutrient deficiencies; dietary energy sources; young adults; psychology; intestinal absorption; dietary nutrient sources; lipolysis; corn oil; toxicity; dietary minerals; dietary mineral supplements
Abstract:
... Because manganese (Mn) is potentially toxic, and because dietary fat type may affect Mn absorption, the objectives of the current study were to determine whether diets containing very low or very high amounts of Mn and enriched in either saturated or unsaturated fats affected measures of neuropsychological and basic metabolic function. Healthy young women were fed for 8 wk each, in a crossover des ...
... The protective effect of Piper betle, a commonly used masticatory, has been examined in the brain of ethanol-administered Wistar rats. Brain of ethanol-treated rats exhibited increased levels of lipids, lipid peroxidation, and disturbances in antioxidant defense. Subsequent to the experimental induction of toxicity (i.e., the initial period of 30 days), aqueous P. betle extract was simultaneously ...
... The neuroprotective effects of a water fraction from the methanol extract of Ixeris dentata (WFID) against oxidative stress in the brain of mice challenged with kainic acid were examined by evaluating behavioral characteristics and biochemical parameters of oxidative stress. Male ICR mice were divided into three groups: a control group that received no treatment and two groups challenged with kain ...
... The neuroprotective mechanism of p-terphenyl leucomentins from the mushroom Paxillus panuoides was studied. Leucomentins showed potent inhibition of lipid peroxidation and H₂O₂ neurotoxicity, but free from any role as reactive oxygen species (ROS) scavengers. Iron-mediated oxidative damage has been implicated in these processes, as a provider of ROS via iron. Leucomentins can chelate iron when DNA ...
... The neuroprotective effect of the butanol fraction from the methanol extract of Aster scaber Thunb. (rough aster butanol fraction) on oxidative damage in the brain of mice challenged with kainic acid was examined using behavioral signs and biochemical parameters of oxidative stress. The rough aster butanol fraction (0.4−1.0 g/kg) was administered to ICR male mice, 6−8 weeks, through a gavage for 4 ...
... Parkinson’s disease (PD) is a frequent neurological disorder of the basal ganglia, which is characterized by the progressive loss of dopaminergic neurons mainly in the substantia nigra pars compacta (SNpc). Inflammatory processes have been shown to be associated with the pathogenesis of PD. Activated microglia, as well as to a lesser extent reactive astrocytes, are found in the area associated wit ...
... The release of the inhibitory neuromodulator taurine in the hippocampus is markedly enhanced under various neural cell-damaging conditions, including ischemia and exposure to free radicals. The properties and regulation of the release evoked by a medium containing free radicals was investigated in hippocampal slices from adult (3-month-old) and developing (7-day-old) mice, using a superfusion syst ...
... During the last decade deep brain stimulation (DBS) has become a routine method for the treatment of advanced Parkinson’s disease (PD), leading to striking improvements in motor function and quality of life of PD patients. It is associated with minimal morbidity. The rationale of targeting specific structures within basal ganglia such as the subthalamic nucleus (STN) or the internal segment of the ...
... Over the past few years there has been an exponential growth in the number of reports describing the effects of nutritional modulation on aging and age-related diseases. Specific attention has been directed toward the beneficial effects afforded by dietary antioxidants, in particular those from fruit and vegetables, in ameliorating age-related deficits in brain performance. The rationale for study ...
... The present study investigated the effects of gossypin, 3,3′,4′,5,7,8-hexahydroxyflavone 8-glu-coside, on the toxicity induced by oxidative stress or β-amyloid (Aᵦ) in primary cultured rat cortical cells. The antioxidant properties of gossypin were also evaluated by cell-free assays. Gossypin was found to inhibit the oxidative neuronal damage induced by xanthine/xanthine oxidase or by a glutathion ...
... Clinical trials of several neurodegenerative diseases have increasingly targeted the evaluation of various antioxidants' effectiveness. The human diet contains several thousand phytochemicals, many of which have significant bioactivities. Vitamin C, a naturally occurring antioxidant, is known to reduce the risk of neurodegenerative disorders such as Alzheimer's disease. Quercetin, one of the major ...
... Dietary supplements such as grape seed extract (GSE) enriched in proanthocyanidins (PA) (oligomeric polyphenols) have been suggested to have multiple health benefits, due to antioxidant and other beneficial activities of the PA. However, a systematic analysis of the molecular basis of these benefits has not been demonstrated. Because the brain is vulnerable to age-related oxidative damage and othe ...
... The molecular basis for the beneficial impact of essential omega-3 (nâ3) FA remains of interest. Recently, we identified novel mediators generated from eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) that displayed potent bioactions identified first in resolving inflammatory exudates and in tissues enriched with DHA. The trivial names resolvin (resolution phase interaction products) a ...
... DBA/2J (D2) mice develop a form of progressive pigmentary glaucoma with increasing age. We have compared retinal cell populations of D2 mice with those in control C57BL/6J mice to provide information on retinal histopathology in the D2 mouse. The D2 mouse retina is characterized by a reduction in retinal thickness caused mainly by a thinning of the inner retinal layers. Immunocytochemical staining ...
memory; neurophysiology; polyphenols; black currants; cranberries; fruit composition; dietary supplements; oxidative stress; second messengers; biomarkers; dietary nutrient sources; cognition; hippocampus; neurons; nutritional intervention; physical activity; boysenberries; rats; antioxidant activity; antioxidants; neuroprotective effect; chemical composition; cyanin; vegetable extracts; physical fitness; inflammation; fruit extracts; animal models; chemical constituents of plants; vegetables; blueberries
Abstract:
... Dietary supplementation with fruit or vegetable extracts can ameliorate age-related declines in measures of learning, memory, motor performance, and neuronal signal transduction in a rat model. To date, blueberries have proved most effective at improving measures of motor performance, spatial learning and memory, and neuronal functioning in old rats. In an effort to further characterize the bioact ...
... beta-Amyloid (betaA)-induced oxidative toxicity on neuronal cells is a principal route in Alzheimer's disease (AD), and its toxicity occurs after fibril formation. Inhibitory or promoting effects of naturally occurring compounds on betaA fibril formation were evaluated. Among 214 tested compounds, curcuminoids, flavone type flavonoids, and naphthoquinones were shown to be potent inhibitors of beta ...
... The neuroprotective effect of petaslignolide A (PA), a furfuran lignan isolated from butanol fraction of Petasites japonicus (Sieb. et Zucc.) Maxim. (Compositae) leaves, on the oxidative damage in the brain of mice challenged with kainic acid was examined using behavioral signs and biochemical parameters of oxidative stress. PA (40 mg/kg) was administered to ICR male mice through a gavage for 4 da ...
... Because strawberries are known to contain higher concentrations of phytochemicals and have higher antioxidant capacity among common fruits, their neuroprotective activity was tested in vitro on PC12 cells treated with H2O2. Their protective effect and antioxidant capacity were also compared with those of banana and orange, which are the fresh fruits consumed at highest levels in the United States. ...
neuroprotective effect; polyphenols; neurophysiology; motor neurons; humans; reactive oxygen species; inflammation; signal transduction; hippocampus; nervous system diseases; cognition; blueberries; oxidative stress
Abstract:
... Brain aging is characterized by the continual concession to battle against insults accumulated over the years. One of the major insults is oxidative stress, which is the inability to balance and to defend against the cellular generation of reactive oxygen species (ROS). These ROS cause oxidative damage to nucleic acid, carbohydrate, protein, and lipids. Oxidative damage is particularly detrimental ...
... Gene-specific expansion of polyglutamine-encoding CAG repeats can cause neurodegenerative disorders, including Huntington's disease. It is believed that part of the pathological effect of the expanded protein is due to transcriptional dysregulation. Using Drosophila as a model, we show that cAMP-response element-binding protein (CREB) is involved in expanded polyglutamine-induced toxicity. A mutat ...
... The present study evaluated antioxidant and neuroprotective activities of hesperidin, a flavanone mainly isolated from citrus fruits, and its aglycone hesperetin using cell-free bioassay system and primary cultured rat cortical cells. Both hesperidin and hesperetin exhibited similar patterns of 1,1-diphenyl-2-picrylhydrazyl radical scavenging activities. While hesperidin was inactive, hesperetin w ...
... It is becoming increasingly clear that although there is a great deal of research being devoted to elucidating the molecular mechanisms involved in aging, practical information on how to forestall or reverse the deleterious effects of aging may be years away. Therefore, it may be beneficial to determine other methods to improve the quality of life in the aging population. A plethora of epidemiolog ...
... Dietary supplementation with antioxidant rich foods can decrease the level of oxidative stress in brain regions and can ameliorate age-related deficits in neuronal and behavioral functions. We examined whether short-term supplementation with blueberries might enhance the brain's ability to generate a heat shock protein 70 (HSP70) mediated neuroprotective response to stress. Hippocampal (HC) region ...