Abstract:
:Background/aim: Vitamin D has been hypothesized to be main regulator of the aging rate, alongside evidences support its role in neuroprotection. However, data about the protective role of vitamin D against neurophysiologic alterations associated with brain aging is limited. This study investigated the possible protective effects that vitamin D has on brain-derived neurotrophic factor (BDNF), cholinergic function, oxidative stress and apoptosis in aging rat brain. Methods: Male Wister albino rats aged 5 months (young), 12 months (middle aged) and 24 months (old) (n = 20 each) were used. Each age group subdivided to either vitamin D3 supplementation (500 IU/kg/day orally for 5 weeks) or no supplementation (control) group (n = 10 each). Serum 25-hydroxyvitamin D [25(OH)D], brain BDNF and malondialdehyde levels and activities of acetylcholinesterase (AChE), antioxidant enzymes (glutathione reductase, glutathione peroxidase and superoxide dismutase) and caspase-3 were quantified. Results: Vitamin D supplementation significantly mitigated the observed aging-related reduction in brain BDNF level and activities of AChE and antioxidant enzymes and elevation in malondialdehyde level and caspase-3 activity compared to control groups. Brain BDNF level correlated positively with serum 25(OH) D level and brain AChE activity and negatively with brain malondialdehyde level and caspase-3 activity in supplemented groups. Conclusion: Restoring vitamin D levels may, therefore, represent a useful strategy for healthy brain aging. Augmenting brain BDNF seems to be a key mechanism through which vitamin D counteracts age-related brain dysfunction.
journal_name
Nutr Neuroscijournal_title
Nutritional neuroscienceauthors
Khairy EY,Attia MMdoi
10.1080/1028415X.2019.1665854subject
Has Abstractpub_date
2019-09-16 00:00:00pages
1-10eissn
1028-415Xissn
1476-8305pub_type
杂志文章abstract:OBJECTIVE:Coffee is one of the most widely consumed beverages worldwide. Aim of this study was to investigate short-term effects of espresso coffee on heart rate variability (HRV), a marker of vagal activity, in healthy habitual and non-habitual coffee consumers. METHODS:Seventy-seven healthy subjects (38 habitual and...
journal_title:Nutritional neuroscience
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1179/1476830515Y.0000000018
更新日期:2016-05-01 00:00:00
abstract::Objective: We evaluate whether the consumption of fructose for 8 weeks affects enzymes and transcription factors of the lipogenic and inflammatory pathways in the hypothalamus of Wistar rats. Methods: At 30 days, the animals were divided into groups: Control (C) and Fructose (F) and maintained with free access to feed...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.2018.1427659
更新日期:2019-09-01 00:00:00
abstract::The kynurenine (KYN) pathway of tryptophan metabolism produces several neuroactive metabolites, including 3-hydroxykynurenine (3HK). The pathway is subject to regulation by a number of effectors including pregnancy and availability of vitamin B-6. Vitamin B-6 depleted humans and animals excrete abnormally high concent...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.2000.11747309
更新日期:2000-01-01 00:00:00
abstract:OBJECTIVES:Genistein is a plant-derived estrogenic isoflavone commonly found in dietary and therapeutic supplements, due to its potential health benefits. Growth hormone-releasing hormone (GHRH) and somatostatin (SS) are neurosecretory peptides synthesized in neurons of the hypothalamus and regulate the growth hormone ...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1179/1476830514Y.0000000143
更新日期:2016-12-01 00:00:00
abstract:PURPOSE:The Mediterranean diet has been postulated as a protective factor against different diseases including stroke. Thus, an epidemiological study in a Mediterranean country, such as Spain, focused on diet may offer new insights of the potential benefits of this nutritional pattern to prevent the onset of cerebrovas...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/10284150290007047
更新日期:2002-02-01 00:00:00
abstract::Rats given long-term access to a palatable sucrose solution are more sensitive to (1) the analgesic potency of morphine and (2) the anorectic actions of naltrexone. In the present experiment, the ability of naltrexone to antagonize the antinociceptive properties of morphine was examined in sucrose- and chow-fed rats. ...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415042000198807
更新日期:2004-02-01 00:00:00
abstract::Studies using traditional treatment strategies for mild traumatic brain injury (TBI) have produced limited clinical success. Interest in treatment for mild TBI is at an all time high due to its association with the development of chronic traumatic encephalopathy and other neurodegenerative diseases, yet therapeutic op...
journal_title:Nutritional neuroscience
pub_type: 杂志文章,评审
doi:10.1080/1028415X.2016.1236174
更新日期:2018-02-01 00:00:00
abstract::We investigated the components of ginger that are involved in increasing body temperature. Gingerols ([6,8,10]-gingerols) and shogaols ([6,8,10]-shogaols) having different alkyl carbon chain lengths were targeted. All the gingerols and shogaols increased intracellular calcium concentration in rat transient receptor po...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/110284150600955164
更新日期:2006-06-01 00:00:00
abstract:OBJECTIVES:The green seaweed Ulva sp. contains a large amount of ulvans, a family of sulphated polysaccharides. The present study was designed to investigate in rats the antidepressant- and anxiolytic-like effects of a hydrophilic extract of Ulva sp. (MSP) containing about 45% of ulvans. METHODS:After a 14-day adminis...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.2016.1276704
更新日期:2018-05-01 00:00:00
abstract::Background: Adherence to a Mediterranean diet is associated with higher cognitive function and reduced risk of dementia in Mediterranean populations. However, few studies have investigated the association between Mediterranean diet adherence and cognition in populations outside of the Mediterranean basin. Furthermore,...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.2019.1655201
更新日期:2019-08-21 00:00:00
abstract::Background: This study aimed to analyse the impact of des-acyl and acyl ghrelin (AG) on a wide range of muscular and metabolic markers and in order to discover the possible relationships and interactions of des-acylated ghrelin (DAG) on eating disorders.Materials & Methods: A total of 88 subjects (64 women and 24 men,...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.2020.1752997
更新日期:2020-04-15 00:00:00
abstract::Depression is a major public health problem affecting about 12% of the world population. Drugs exist but they have many side effects. In the last few years, natural substances (e.g. flavonoids) have been tested to cure such disorders. Cocoa polyphenolic extract is a complex compound prepared from non-roasted cocoa bea...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1179/147683008X344165
更新日期:2008-12-01 00:00:00
abstract::Adult female rats, receiving a low protein diet at perinatal age and then recovered with balanced chow (D rats), were evaluated in the Open Field Drink Test (OFDT), after different acute and chronic treatments with benzodiazepines (BZD) ligands, as compared with control (C) female rats. Control and D rats showed simil...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.1998.11747253
更新日期:1998-01-01 00:00:00
abstract::While there are many theories on the control of feeding behavior that emphasize a role for energy substrates and their metabolism, the mechanism that couples changes in energy substrate supply and metabolism to alterations in food intake remains unclear. The purpose of the present project was to investigate the possib...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.1999.11747274
更新日期:1999-01-01 00:00:00
abstract:PURPOSE:The aim of this study was investigating the effect of omega-3 fatty acids (ω-3 FAs) on brain-derived neurotrophic factor (BDNF) gene expression, using in vivo and in vitro models, to unravel the potential mechanisms of polyunsaturated fatty acids use in obesity. MATERIALS AND METHODS:Twenty-nine Sprague-Dawley...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.2016.1180859
更新日期:2017-10-01 00:00:00
abstract:OBJECTIVES:Stress in known to alter hormonal systems. Pharmacological doses of tryptophan, the essential amino acid precursor of serotonin, increase circulating leptin and decrease ghrelin in normal healthy adults. Because systemically injected leptin inhibits stress-induced behavioral deficits and systemically injecte...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.2017.1395551
更新日期:2019-06-01 00:00:00
abstract::Objective: Amylin acts on the lateral dorsal tegmental nucleus (LDT), resulting in anorexic and weight-loss effects and activates thermogenesis in the interscapular brown adipose tissue (IBAT). In addition, it induces neuronal nitric oxide synthase (nNOS) and choline acetyltransferase (ChAT)-mediated feeding. However,...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.2020.1752998
更新日期:2020-04-25 00:00:00
abstract::Primary brain injury in stroke is followed by an excitotoxic cascade, oxidative stress and further neural damage. Glutathione is critical and depleted in oxidative stress. Since cysteine is limiting in glutathione synthesis, this study investigated the effect of dietary sulfur amino acid (SAA) deficiency on neural dam...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415021000055952
更新日期:2002-12-01 00:00:00
abstract::Objectives: Apigenin is the most common bioflavonoid known to be biologically active after systemic administration and show multiple pharmacological effects. The present study was designed to explore the role of apigenin in pentylenetetrazole (PTZ) kindling associated cognitive and behavioural impairments in the mouse...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.2018.1478653
更新日期:2020-02-01 00:00:00
abstract::Young children respond to energy dilution achieved using fat or sugar substitutes by compensating for reduced energy within a single meal. The ability to respond to energy dilution in the short term may diminish with age, since adults do not reliably demonstrate accurate caloric compensation in the short term. Two exp...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.2000.11747329
更新日期:2000-01-01 00:00:00
abstract::Newborn rats maintain mother-litter bonds by using olfactory signals. At birth, units in the olfactory glomeruli (OG) are immature and vulnerable to noxious epigenetic factors like undernutrition. Because little is known about the effects of neonatal undernutrition upon the OG morphological organization, different OG ...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/10284150500506042
更新日期:2006-02-01 00:00:00
abstract:OBJECTIVES:Alzheimer's disease (AD) is one of the most common forms of neurodegenerative diseases. Despite vast ongoing researches focusing on the area, little is known about novel treatments. In this study, we aimed to survey the effects of Capparis spinosa (C. spinosa) extract on amyloid-beta peptide (Aβ)-injected ra...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.2016.1238026
更新日期:2018-02-01 00:00:00
abstract::In this article, the second of a series on the analysis of time to event data, we address the case in which multiple predictors (covariates) that may influence the time to an event are taken into account. The hazard function is introduced, and is given in a form useful for assessing the impact of multiple covariates o...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415031000079694
更新日期:2003-04-01 00:00:00
abstract::Introduction: Obesity is a public health problem that is associated with cerebrovascular diseases, such as ischemic stroke. The coexistence of obesity with cerebral ischemia has been suggested to be considerably detrimental to the neurological system. Objective: Hence, in this study, we evaluated the long-term effects...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.2020.1841482
更新日期:2020-11-08 00:00:00
abstract::The effects of noise-induced arousal on chewing, subjective motivation to eat, the pleasantness of sweet food, and food intake were investigated. Twenty-four healthy normal weight male subjects received cookies differing in sucrose content (2%, 11%, 18% or 27%) before, during, and after 10 min of intermittent white no...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.1998.11747231
更新日期:1998-01-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to determine effects of probiotic yogurt and multispecies probiotic capsule supplementation on mental health and hypothalamic-pituitary-adrenal axis in petrochemical workers. METHODS:The present randomized double-blind, placebo-controlled trial was conducted on 70 petrochemical work...
journal_title:Nutritional neuroscience
pub_type: 杂志文章,随机对照试验
doi:10.1179/1476830515Y.0000000023
更新日期:2016-11-01 00:00:00
abstract::Brain glucose and ketone uptake was investigated in Fisher rats subjected to mild experimental ketonemia induced by a ketogenic diet (KD) or by 48 hours fasting (F). Two tracers were used, (11)C-acetoacetate ((11)C-AcAc) for ketones and (18)F-fluorodeoxyglucose for glucose, in a dual-tracer format for each animal. Thu...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1179/1476830510Y.0000000001
更新日期:2011-03-01 00:00:00
abstract:BACKGROUND:Differences in the composition of control diets may confound outcomes in studies investigating dietary effects. OBJECTIVE:We compared the effects of two control diets commonly used in mice studies, chow (SD) and a purified low-fat diet (LFD), in relation to a chronic high-fat diet (HFD). We hypothesized tha...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.2017.1349359
更新日期:2019-01-01 00:00:00
abstract::Background: Multiple sclerosis (MS) is associated with changes in quality of life, disability, fatigue and anthropometric measurements. The important relationship of dietary patterns with such clinical manifestations was not completely investigated. Aims: The goal of this study was to define the dietary patterns and t...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.2019.1580831
更新日期:2020-12-01 00:00:00
abstract::Given that protein malnutrition induces structural, neurochemical and functional changes in the CNS, the present study aimed to investigate the effects of different early periods of protein malnutrition on the behavior and reactivity to diazepam (DZ) in a model of anxiety: the fear-potentiated startle (FPS). Male Wist...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/10284150601168346
更新日期:2007-02-01 00:00:00