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 injected serotonin modulates leptin release from the adipocytes, we used tryptophan as a pharmacological tool to modulate hormonal and behavioral responses in unstressed and stressed rats. METHODS:Leptin, ghrelin, serotonin, tryptophan, and behavior were studied in unstressed and stressed rats following oral administration of 0, 100, 200, and 300 mg/kg of tryptophan. RESULTS:Following oral administration of tryptophan at a dose of 300 mg/kg, circulating levels of serotonin and leptin increased and those of ghrelin decreased in unstressed animals. No effect occurred on 24-hours cumulative food intake and elevated plus maze performance. Exposure to 2 hours immobilization stress decreased 24 hours cumulative food intake and impaired performance in elevated plus maze monitored next day. Serum serotonin decreased, leptin increased, and no effect occurred on ghrelin. Stress effects on serotonin, leptin, food intake, and elevated plus maze performance did not occur in tryptophan-pretreated animals. Tryptophan-induced decreases of ghrelin also did not occur in stressed animals. CONCLUSION:The findings show an important role of serum serotonin, leptin, and ghrelin in responses to stress and suggest that the essential amino acid tryptophan can improve therapeutics in stress-induced hormonal and behavioral disorders.
journal_name
Nutr Neuroscijournal_title
Nutritional neuroscienceauthors
Gul S,Saleem D,Haleem MA,Haleem DJdoi
10.1080/1028415X.2017.1395551subject
Has Abstractpub_date
2019-06-01 00:00:00pages
409-417issue
6eissn
1028-415Xissn
1476-8305journal_volume
22pub_type
杂志文章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::Carnosine (beta-alanyl-L-histidine) and its derivative anserine (beta-alanyl-1-methyl-L-histidine) are antioxidants and putative neurotransmitters in the brain. These dipeptides are rich in the commercially available supplement chicken breast extract (CBEX). To clarify the effects of CBEX on the brain, we examined whe...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/10284150701587338
更新日期:2007-06-01 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::We examined whether diabetes mellitus (DM) affects the acute ethanol (EtOH)-induced increase in serotonin (5-HT) release from the rat hippocampus, and compared the findings with those obtained from non-DM rats. Hippocampal 5-HT was measured by using in vivo microdialysis. Rats were rendered diabetic by an injection of...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1179/1476830511Y.0000000006
更新日期:2011-05-01 00:00:00
abstract::Dietary sulfur amino acid content is a major determinant of glutathione concentration in some tissues. We examined whether brain glutathione (GSH), a key component of antioxidant defense important for minimizing ischemic injury, was also responsive to short-term sulfur amino acid deficiency. Female Long-Evans adult ra...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415x.2001.11747364
更新日期:2001-01-01 00:00:00
abstract::Objectives: A strong rise of the fructose content in the human diet occurred in the last decade, as corn syrup is widely used as a sweetener for beverages and processed food. Since young people make a widespread consumption of added sugars, we evaluated the effects of a two weeks fructose-rich diet on brain redox home...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.2018.1501532
更新日期:2020-04-01 00:00:00
abstract::The preschool years (i.e. 1-5 years of age) is a time of rapid and dramatic postnatal brain development (i.e. neural plasticity), and of fundamental acquisition of cognitive development (i.e. working memory, attention and inhibitory control). Also, it is a time of transition from a direct maternal mediation/selection ...
journal_title:Nutritional neuroscience
pub_type: 杂志文章,评审
doi:10.1179/147683009X423454
更新日期:2009-10-01 00:00:00
abstract::Food intake decreases and a conditioned taste aversion is induced when rats are fed a diet that is devoid of an indispensable amino acid. The purpose of this study was to characterize the meal patterns associated with (1) the onset of anorexia after the initial recognition of a threonine deficiency and (2) after the d...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/10284150290032003
更新日期:2002-09-01 00:00:00
abstract:OBJECTIVES:Coenzyme Q10 (CoQ10, ubiquinone) stands among the safest supplements in the elderly to protect against cardiovascular disorders. Noteworthy, CoQ10 deficiency is common in many surviving stroke patients as they are mostly prescribed statins for the secondary prevention of stroke incidence lifelong. Accordingl...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.2017.1376928
更新日期:2019-04-01 00:00:00
abstract:OBJECTIVE:This study was designed to review the effect of chronic aluminium exposure on interleukin-6 (IL-6) secretion in the posterior brain and test the putative modulating effect of fenugreek seeds. METHODS:Female Wistar rats were divided into four groups: control; AlCl3 during 5 months (500 mg/kg body weight, intr...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1179/1476830512Y.0000000048
更新日期:2013-09-01 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::Background: Essential fatty acids (EFAs) and non-essential fatty acids (nEFAs) exert experimental and clinical neuroprotection in neurodegenerative diseases. The main EFAs, eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), nEFAs, and oleic acid (OA) contained in olive and fish oils are inserted into the cell me...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.2019.1584692
更新日期:2021-01-01 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::Objective: The association between vitamin E supplementation and Alzheimer's disease (AD) was controversial because of conflicting data in the literature. This study was designed to systematically evaluate evidence about the efficacy of vitamin E supplementation not only on the risk but also on the progression of AD. ...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.2019.1585506
更新日期:2021-01-01 00:00:00
abstract:OBJECTIVES:Sodium metabisulfite as a food preservative can affect the central nervous system. Curcumin, the main ingredient of turmeric has neuroprotective activity. This study was designed to evaluate the effects of sulfite and curcumin on the medial prefrontal cortex (mPFC) using stereological methods. METHODS:Thirt...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1179/1476830514Y.0000000123
更新日期:2015-08-01 00:00:00
abstract:OBJECTIVES:Hypnotic, analgesic, anticonvulsant, and antioxidant effects of Rosa damascena have been reported. This study, investigated the effect of R. damascena hydroalcoholic extract on memory performance in a scopolamine-induced memory impairment model. METHODS:The rats were divided into control group received just...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1179/1476830514Y.0000000137
更新日期:2015-10-01 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::Mitochondrial decay due to oxidative damage is a contributor to brain aging and age-related neurodegenerative diseases, such as Alzheimer's disease (AD) and Parkinson's disease (PD). One type of mitochondrial decay is oxidative modification of key mitochondrial enzymes. Enzyme dysfunction, that is due to poor binding ...
journal_title:Nutritional neuroscience
pub_type: 杂志文章,评审
doi:10.1080/10284150500047161
更新日期:2005-04-01 00:00:00
abstract::Organophosphorus compounds are widely used in agriculture. Epidemiological studies propose that pesticide exposure is a risk factor for Alzheimer's disease (AD), but the mechanisms are unclear. Here, we investigated the impact of malathion exposure on the cognitive ability and the underlying mechanisms in rats. Moreov...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.2018.1492772
更新日期:2020-03-01 00:00:00
abstract::Objectives: This study was designed to investigate the vitamin A (VA) and vitamin D (VD) levels in children with autism spectrum disorders (ASD) and to determine whether co-deficiency of VA and VD exacerbates clinical symptoms in autistic children. Methods: The Autism Behavior Checklist, Childhood Autism Rating Scale ...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.2017.1423268
更新日期:2019-09-01 00:00:00
abstract:BACKGROUND AND RATIONALE:Certain nutritional supplements are being marketed for the management of Alzheimer's disease (AD), but the evidence for their effectiveness is not established. The objective of this review was to evaluate the evidence from randomized clinical trial (RCTs) examining the effect of Souvenaid in pa...
journal_title:Nutritional neuroscience
pub_type: 杂志文章,meta分析,评审
doi:10.1080/1028415X.2015.1110899
更新日期:2017-05-01 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: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::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::Cognitive and motor performance are critical in many circumstances and are impaired by sleep deprivation. We administered placebo, tyrosine 150 mg/kg, caffeine 300 mg/70 kg, phentermine 37.5 mg and D-amphetamine 20 mg at 15.30 h following overnight sleep deprivation and compare their effects on cognitive and motor per...
journal_title:Nutritional neuroscience
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1080/1028415031000120552
更新日期:2003-08-01 00:00:00
abstract:OBJECTIVES:Somatic symptoms are common in depressive disorder and are similar to sickness behaviors due to inflammatory activation after cytokine administration. Omega-3 polyunsaturated fatty acids (PUFAs) are natural anti-inflammatory agents and may reduce inflammation-induced behavioral changes. The aim of this study...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.2015.1123378
更新日期:2017-06-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to assess the association between cerebral infarction (CI), nutritional status, and depression. METHODS:Subjects with and without CI (n = 146; 73 CI vs. 73 non-CI) were recruited from Kyung Hee University Medical Center (Seoul, Korea) and were matched according to age and gende...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1179/1476830511Y.0000000023
更新日期:2012-01-01 00:00:00
abstract::Objectives: Postpartum depression (PPD) is a major depressive disorder. Vitamin D deficiency may play a role in PPD pathogenesis. This study was designed to determine the effect of vitamin D and calcium supplementation on the severity of symptoms and some related inflammatory biomarkers in women with PPD.Materials and...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.2019.1707396
更新日期:2020-01-03 00:00:00
abstract:OBJECTIVES:Combat deployments are characterized by high operational demands with limited opportunities for sleep leading to fatigue and degraded cognitive and operational performance. Caffeine in moderate doses is recognized as an effective intervention for physical and cognitive decrements associated with sleep loss. ...
journal_title:Nutritional neuroscience
pub_type: 杂志文章
doi:10.1080/1028415X.2018.1443996
更新日期:2019-11-01 00:00:00