Backflux of ammonia from brain to blood in human subjects with and without hepatic encephalopathy.

abstract：:Amyloid-beta (Aβ) interacts with the serine/threonine protein kinase AKT (also known as protein kinase B)/glycogen synthase kinase 3β (GSK3β) pathway and deactivates GSK3β signaling, which result in microtubule protein tau phosphorylation. Atorvastatin, a HMG-CoA reductase inhibitor, has been proven to improve learnin...

journal_title：Metabolic brain disease

authors： Zhou D,Liu H,Li C,Wang F,Shi Y,Liu L,Zhao X,Liu A,Zhang J,Wang C,Chen Z

更新日期：2016-06-01 00:00:00

abstract：:Hepatic encephalopathy is a common complication of hepatic cirrhosis. The clinical diagnosis is based on two concurrent types of symptoms: impaired mental status and impaired neuromotor function. Impaired mental status is characterized by deterioration in mental status with psychomotor dysfunction, impaired memory, an...

journal_title：Metabolic brain disease

authors： Malaguarnera M

更新日期：2013-06-01 00:00:00

abstract：:Hepatic encephalopathy (HE) is an important cause of morbidity and mortality in patients with severe liver disease. Although the mechanisms responsible for HE remain elusive, ammonia is generally considered to be involved in its pathogenesis, and astrocytes are thought to be the principal target of ammonia neurotoxici...

journal_title：Metabolic brain disease

authors： Rama Rao KV,Jayakumar AR,Norenberg DM

更新日期：2003-06-01 00:00:00

abstract：:The permeability of the blood-brain barrier to glutamate was measured by quantitative autoradiography in brains of 7-day-old rats (average plasma glutamate 114 microM) and rats injected subcutaneously with glutamate (average plasma glutamate 2,670 microM). Measurements of glutamate permeability were initiated by the i...

journal_title：Metabolic brain disease

authors： Viña JR,DeJoseph MR,Hawkins PA,Hawkins RA

更新日期：1997-09-01 00:00:00

abstract：:While risk factors for konzo are known, determinants of cognitive impairment in konzo-affected children remain unknown. We anchored cognitive performance (KABC-II scores) to serum levels of free-thyroxine (free-T4), thyroid-stimulating hormone (TSH), albumin, and motor proficiency (BOT-2 scores) in 40 children includi...

journal_title：Metabolic brain disease

authors： Bumoko GM,Sombo MT,Okitundu LD,Mumba DN,Kazadi KT,Tamfum-Muyembe JJ,Lasarev MR,Boivin MJ,Banea JP,Tshala-Katumbay DD

更新日期：2014-06-01 00:00:00

abstract：:We report reversible abnormalities in magnetic resonance spectra acquired from a patient with AIDS undergoing antibiotic and corticosteroid therapy for disseminated nocardiosis, a rare opportunistic infection of immunosuppressed patients which can cause cerebral abscess formation. There was no clinical, CT or MRI evid...

journal_title：Metabolic brain disease

authors： Marcus CD,Taylor-Robinson SD,Cox IJ,Sargentoni J,Shaunak S

更新日期：1999-12-01 00:00:00

abstract：:There is abundant evidence showing that repeated use of MDMA (3, 4-Methylenedioxymethamphetamine, ecstasy) has been associated with depression, anxiety and deficits in learning and memory, suggesting detrimental effects on hippocampus. Adenosine is an endogenous purine nucleoside that has a neuromodulatory role in the...

journal_title：Metabolic brain disease

authors： Kermanian F,Mehdizadeh M,Soleimani M,Ebrahimzadeh Bideskan AR,Asadi-Shekaari M,Kheradmand H,Haghir H

更新日期：2012-12-01 00:00:00

abstract：:Minimal hepatic encephalopathy (MHE) is the earliest form of hepatic encephalopathy (HE) and affects up to 80 % of patients with liver cirrhosis. By definition, MHE is characterized by psychomotor slowing and subtle cognitive deficits,  but obvious clinical manifestations are lacking. Given its covert nature, MHE is o...

journal_title：Metabolic brain disease

authors： Nardone R,De Blasi P,Höller Y,Brigo F,Golaszewski S,Frey VN,Orioli A,Trinka E

更新日期：2016-10-01 00:00:00

abstract：:α-asarone (ASR) is a major bioactive compound isolated from the rhizome of Acorus tatarinowii Schott and it has extensive biological effects. Clinically, anxiety disorder is a common comorbidity of chronic pain. However, limited information is available regarding the effects of ASR on chronic pain-related anxiety. Thi...

journal_title：Metabolic brain disease

authors： Tian J,Tian Z,Qin SL,Zhao PY,Jiang X,Tian Z

更新日期：2017-12-01 00:00:00

abstract：:To investigate the hypothesis that neurotoxic metals can exert their toxicity through the direct inhibition of monoamine oxidases (MAOs), the effects of several neurotoxic metal ions on type A (MAO-A) and type B (MAO-B) monoamine oxidase activities in rat forebrain nonsynaptic mitochondria and rat liver mitochondria w...

journal_title：Metabolic brain disease

authors： Leung TK,Lim L,Lai JC

更新日期：1992-09-01 00:00:00

abstract：:At the present time alcoholism is recognized as a metabolic disease exhibiting the clinical features of craving for alcohol, loss of control over drinking, tolerance and physical dependence on alcohol, while both epidemiological and experimental studies have demonstrated that genetic factors may be important in determ...

journal_title：Metabolic brain disease

authors： Gianoulakis C,de Waele JP

更新日期：1994-06-01 00:00:00

abstract：:This study aimed to examine the neuroprotective effects of Nigella sativa (N. sativa) in the hippocampus of propylthiouracil (PTU)-induced hypothyroid rats during neonatal and juvenile growth. Twenty- five pregnant rats from early gestation (GD 0) were divided into five groups: (1) control (received drinking water), (...

journal_title：Metabolic brain disease

authors： Asiaei F,Fazel A,Rajabzadeh AA,Hosseini M,Beheshti F,Seghatoleslam M

更新日期：2017-10-01 00:00:00

abstract：:Mobile phone providers use electromagnetic radiation (EMR) with frequencies ranging from 900 to 1800 MHz. The increasing use of mobile phones has been accompanied by several potentially pathological consequences, such as neurological diseases related to hippocampal (HIPPON) and dorsal root ganglion neuron (DRGN). The ...

journal_title：Metabolic brain disease

authors： Ertilav K,Uslusoy F,Ataizi S,Nazıroğlu M

更新日期：2018-06-01 00:00:00

abstract：:Transient cerebral ischemia causes long-lasting inhibition of protein synthesis despite recovery of energy metabolism. We investigated the question if this inhibition is due to the formation of a suppression factor which interferes with the function of the protein synthesizing machinery. For this purpose rats were sub...

journal_title：Metabolic brain disease

authors： Erdogdu G,Uto A,Hossmann KA

更新日期：1993-12-01 00:00:00

abstract：:It has been suggested that antidepressants, including the selective serotonin reuptake inhibitors have neurotrophic effects. Nevertheless, the impact of treatment with a selective serotonin re-uptake inhibitor on regional brain volumes in social anxiety disorder has not been studied. 11 subjects with social anxiety di...

journal_title：Metabolic brain disease

authors： Cassimjee N,Fouche JP,Burnett M,Lochner C,Warwick J,Dupont P,Stein DJ,Cloete KJ,Carey PD

更新日期：2010-12-01 00:00:00

abstract：:Hyperammonemia is necessary for development of the cerebral complications to liver disease including hepatic encephalopathy and cerebral edema but the mechanisms are unclear. Ammonia is taken up by the brain in proportion to its arterial concentration. The flux into the brain is most likely by both diffusion of NH3 an...

journal_title：Metabolic brain disease

authors： Ott P,Vilstrup H

更新日期：2014-12-01 00:00:00

abstract：:As studies of brain metabolism grow in complexity, investigators turn increasingly to nuclear magnetic resonance spectroscopy combined with 13C isotopic labeling. The unique ability to detect labeling non-destructively in specific carbon positions of individual compounds has opened the way to investigate brain metabol...

journal_title：Metabolic brain disease

authors： Mason GF,Behar KL,Lai JC

更新日期：1996-12-01 00:00:00

abstract：:The effects of chronic and repeated radiofrequency electromagnetic radiation (RFEMR) exposure on spatial cognition and hippocampal architecture were investigated in prepubescent rats. Four weeks old male Wistar rats were exposed to RF-EMR (900 MHz; SAR-1.15 W/kg with peak power density of 146.60 μW/cm(2)) for 1 h/day,...

journal_title：Metabolic brain disease

authors： Narayanan SN,Kumar RS,Karun KM,Nayak SB,Bhat PG

更新日期：2015-10-01 00:00:00

abstract：:A rat model of glucose-precipitated Wernicke's encephalopathy (WE) has been developed in which glucose loading (10 g/kg, i.p.) of ataxic thiamin-deficient (TD) rats induced episodes of gross neurological dysfunction and sometimes death. The acute effects of a glucose load on the neurological state of thiamin-replete c...

journal_title：Metabolic brain disease

authors： Zimitat C,Nixon PF

更新日期：1999-03-01 00:00:00

abstract：:Intracerebroventricular (ICV) injection of streptozotocin (STZ) is a well established procedure to induce neuroinflammation leading to dementia in experimental animals. However, the optimal dose of STZ has not been determined. In the present study, rats were ICV injected with 1.5, 3 and 6 mg of STZ per kg of body weig...

journal_title：Metabolic brain disease

authors： Ghosh R,Sil S,Gupta P,Ghosh T

更新日期：2020-12-01 00:00:00

abstract：:Microglia--the macrophage equivalent of the CNS--safeguards and supports neuronal functions. Threats to the CNS homeostasis can trigger a rapid transformation of these cells from a normally "resting" into alerted and "activated" states. Microglia primarily serves the tissue defence and protection when participating in...

journal_title：Metabolic brain disease

authors： van Rossum D,Hanisch UK

更新日期：2004-12-01 00:00:00

abstract：:The effect of factors released from N2A neuroblastoma cells on the expression of myelin protein genes in glioma C6 cells, i.e., proteolipid protein (PLP) and myelin-associated glycoprotein (MAG), was studied. Both cells lines were propagated in serum-free DMEM-F10 (1:1) medium. The addition of 50% N2A conditioned medi...

journal_title：Metabolic brain disease

authors： Kanoh M,Wiggins RC,Konat G

更新日期：1992-09-01 00:00:00

abstract：:Alzheimer's Disease (AD) is a complex neurodegenerative disorder often associated with aging and characterized by several critical molecular changes that take place in the brain. Among the molecular hallmarks of AD, increased levels of amyloid β-peptide (Aβ) and the subsequent Aβ-derived damage are the most well-studi...

journal_title：Metabolic brain disease

authors： Zolezzi JM,Inestrosa NC

更新日期：2014-09-01 00:00:00

abstract：:Homocystinuria is a metabolic disorder caused by deficiency of cystathione beta-synthase activity leading to tissue accumulation of homocysteine (Hcy); affected patients present neurological dysfunction. Considering that Hcy induces free radical formation and that memory is impaired by oxidative stress, in the present...

journal_title：Metabolic brain disease

authors： Reis EA,Zugno AI,Franzon R,Tagliari B,Matté C,Lammers ML,Netto CA,Wyse AT

更新日期：2002-09-01 00:00:00

abstract：:Hypoxic-ischemia (HI) is a widely used animal model to mimic the preterm or perinatal sublethal hypoxia, including hypoxic-ischemic encephalopathy. It causes diffuse neurodegeneration in the brain and results in mental retardation, hyperactivity, cerebral palsy, epilepsy and neuroendocrine disturbances. Herein, we exa...

journal_title：Metabolic brain disease

authors： Kartal Ö,Aydınöz S,Kartal AT,Kelestemur T,Caglayan AB,Beker MC,Karademir F,Süleymanoğlu S,Kul M,Yulug B,Kilic E

更新日期：2016-08-01 00:00:00

abstract：:Type 2 diabetes (T2D) and Alzheimer's disease (AD) are two progressive disorders with high prevalence worldwide. Polymorphisms in tumor necrosis factor-alpha (TNF-α) and apolipoprotein E (ApoE) genes might be associated with both T2D and AD, representing possible genetic markers for the development of the AD in subjec...

journal_title：Metabolic brain disease

authors： Mustapic M,Popovic Hadzija M,Pavlovic M,Pavkovic P,Presecki P,Mrazovac D,Mimica N,Korolija M,Pivac N,Muck-Seler D

更新日期：2012-12-01 00:00:00

abstract：:Today, due to technology development and aversive events of daily life, Human exposure to both radiofrequency and stress is unavoidable. This study investigated the co-exposure to repeated restraint stress and WiFi signal on cognitive function and oxidative stress in brain of male rats. Animals were divided into four ...

journal_title：Metabolic brain disease

authors： Othman H,Ammari M,Sakly M,Abdelmelek H

更新日期：2017-10-01 00:00:00

abstract：:Increased benzodiazepine (BZ) receptor density has been reported in brains of rabbits with hepatic encephalopathy (HE) due to galactosamine (GalN)-induced fulminant hepatic failure (FHF). These data were generated using detergent-Triton X-100-treated neural membranes. While performing further studies it was noted that...

journal_title：Metabolic brain disease

authors： Rössle M,Mullen KD,Jones EA

更新日期：1989-09-01 00:00:00

abstract：:This study presents further research into the spectrum of variants in genes responsible for the development of phenylketonuria (PKU) and hyperphenylalaninemia (HPA) in patients in Russia. After a study of 25 frequent variants, 293 patients (327 chromosomes without detected variants) from among 1265 probands still had ...

journal_title：Metabolic brain disease

authors： Kuznetcova I,Gundorova P,Ryzhkova O,Polyakov A

更新日期：2019-12-01 00:00:00

abstract：:Menkes disease is a very rare X-linked copper metabolism disorder that results from an ATP7A gene mutation. With the advent of subcutaneous copper-histidine therapy, the early diagnosis of Menkes disease becomes of utmost importance for patients' prognosis. In the present study, the clinical characteristics of 12 Kore...

journal_title：Metabolic brain disease

authors： Kim JH,Lee BH,Kim YM,Choi JH,Kim GH,Cheon CK,Yoo HW

更新日期：2015-02-01 00:00:00