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Metabolic Brain Disease

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https://www.readbyqxmd.com/read/29151151/long-term-treatment-of-diabetic-rats-with-vanadyl-sulfate-or-insulin-attenuate-acute-focal-cerebral-ischemia-reperfusion-injury-via-their-antiglycemic-effect
#1
Hossein Ahmadi-Eslamloo, Gholam Abbas Dehghani, Seyed Mostafa Shid Moosavi
It is well-known that patients with diabetes mellitus have worse clinical outcomes following acute ischemic stroke. The intensifying effects of diabetes on ischemic brain injury have been shown to be mostly due to hyperglycemia, rather than the lack of insulin direct effects on brain. It is also well-approved that vanadium compounds have insulin-like and anti-diabetic effects, and the present study was designed to compare the protective effects of diabetes treatment with vanadium or insulin on ischemic/reperfused brain injury...
November 19, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29138968/mitochondrial-dysfunctions-contribute-to-energy-deficits-in-rodent-model-of-hepatic-encephalopathy
#2
Saurabh Dhanda, Aditya Sunkaria, Avishek Halder, Rajat Sandhir
Perturbations in the cerebral energy metabolism are anticipated to be an important factor by which ammonia may exert its toxic effects on the central nervous system. The present study was designed to investigate the role of impaired mitochondrial functions and cerebral energy metabolism in the development hepatic encephalopathy (HE) induced by of bile duct ligation (BDL). After four weeks of BDL, a significant increase in hepatic hydroxyproline and collagen content was observed which confirmed biliary fibrosis...
November 14, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29134344/a-cross-sectional-study-of-the-relationship-between-blood-lead-levels-and-reported-attention-deficit-disorder-an-assessment-of-the-economic-impact-on-the-united-states
#3
David A Geier, Janet K Kern, Mark R Geier
Attention deficit disorder (ADD) is characterized by a pattern of inattention and/or impulsivity that is inconsistent with developmental level and interferes with normal functioning in at least two settings. A recent meta-analysis suggested a significant relationship between lead (Pb) exposure and attention deficit symptoms. This study evaluated the potential relationship between increasing blood Pb levels and the risk of a reported ADD diagnosis. This cross-sectional study examined a sample of 2109 persons (32,762,158 weighted-persons) between 10 and 19 years-old from the 2003-2004 National Health and Nutritional Examination Survey (NHANES)...
November 13, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29116603/leigh-syndrome-in-individuals-bearing-m-9185t-c-mtatp6-variant-is-hyperventilation-a-factor-which-starts-its-development
#4
Dorota Piekutowska-Abramczuk, Rafał Rutyna, Elżbieta Czyżyk, Elżbieta Jurkiewicz, Katarzyna Iwanicka-Pronicka, Dariusz Rokicki, Sylwia Stachowicz, Joanna Strzemecka, Wiesław Guz, Michał Gawroński, Aneta Kosierb, Joanna Ligas, Mateusz Puchala, Anna Drelich-Zbroja, Małgorzata Bednarska-Makaruk, Wojciech Dąbrowski, Elżbieta Ciara, Janusz B Książyk, Ewa Pronicka
Leigh syndrome (LS), subacute necrotizing encephalomyelopathy is caused by various genetic defects, including m.9185T>C MTATP6 variant. Mechanism of LS development remains unknown. We report on the acid-base status of three patients with m.9185T>C related LS. At the onset, it showed respiratory alkalosis, reflecting excessive respiration effort (hyperventilation with low pCO2). In patient 1, the deterioration occurred in temporal relation to passive oxygen therapy. To the contrary, on the recovery, she demonstrated a relatively low respiratory drive, suggesting that a "hypoventilation" might be beneficial for m...
November 7, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29101603/hypothalamic-pituitary-adrenal-axis-variants-and-childhood-trauma-influence-anxiety-sensitivity-in-south-african-adolescents
#5
Jacqueline S Womersley, Lindi I Martin, Lize van der Merwe, Soraya Seedat, Sian M J Hemmings
Anxiety sensitivity (AS) is characterised by the fear of anxiety-related symptoms and is a risk factor for the development of anxiety-related disorders. We examined whether genetic variation in three stress response genes, CRHR1, NR3C1, and FKBP5, interact with childhood trauma (CT) to predict AS in South African adolescents. Xhosa (n = 634) and Coloured (n = 317) students completed self-report measures of AS and CT, and a total of eighteen polymorphisms within CRHR1, NR3C1, and FKBP5 were genotyped. Differences in AS based on genetic variation and CT were analysed within population and gender groups using multiple linear regression...
November 4, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29101602/garcinia-mangostana-linn-displays-antidepressant-like-and-pro-cognitive-effects-in-a-genetic-animal-model-of-depression-a-bio-behavioral-study-in-the-flinders-sensitive-line-rat
#6
Inge Oberholzer, Marisa Möller, Brendan Holland, Olivia M Dean, Michael Berk, Brian H Harvey
There is abundant evidence for both disorganized redox balance and cognitive deficits in major depressive disorder (MDD). Garcinia mangostana Linn (GM) has anti-oxidant activity. We studied the antidepressant-like and pro-cognitive effects of raw GM rind in Flinders Sensitive Line (FSL) rats, a genetic model of depression, following acute and chronic treatment compared to a reference antidepressant, imipramine (IMI). The chemical composition of the GM extract was analysed for levels of α- and γ-mangostin...
November 3, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29101601/resting-regional-brain-metabolism-in-social-anxiety-disorder-and-the-effect-of-moclobemide-therapy
#7
Alex Doruyter, Patrick Dupont, Lian Taljaard, Dan J Stein, Christine Lochner, James M Warwick
While there is mounting evidence of abnormal reactivity of several brain regions in social anxiety disorder, and disrupted functional connectivity between these regions at rest, relatively little is known regarding resting regional neural activity in these structures, or how such activity is affected by pharmacotherapy. Using 2-deoxy-2-(F-18)fluoro-D-glucose positron emission tomography, we compared resting regional brain metabolism between SAD and healthy control groups; and in SAD participants before and after moclobemide therapy...
November 3, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29101600/normal-diet-vs-high-fat-diet-a-comparative-study-behavioral-and-neuroimmunological-changes-in-adolescent-male-mice
#8
Huali Wu, Qiongzhen Liu, Praveen Kumar Kalavagunta, Qiaoling Huang, Wenting Lv, Xiaohong An, Haijuan Chen, Tao Wang, Rakotomalala Manda Heriniaina, Tong Qiao, Jing Shang
Recent evidence has established that consumption of High-fat diet (HFD)-induced obesity is associated with deficits in hippocampus-dependent memory/learning and mood states. Nevertheless the link between obesity and emotional disorders still remains to be elucidated. This issue is of particular interest during adolescence, which is important period for shaping learning/memory and mood regulation that can be sensitive to the detrimental effects of HFD. Our present study is focused to investigate behavioral and metabolic influences of short-term HFD intake in adolescent C57BL/6 mice...
November 3, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29101599/the-anxiolytic-like-effects-of-puerarin-are-associated-with-the-changes-of-monoaminergic-neurotransmitters-and-biosynthesis-of-allopregnanolone-in-the-brain
#9
Zhi-Kun Qiu, De-Sheng Zhong, Jia-Li He, Xu Liu, Ji-Sheng Chen, Hong Nie
Anxiety disorder is a serious and burdensome psychiatric illness that frequently turn into chronic clinical conditions. Puerarin have been shown to be effective in the therapy of depression. However, few studies are concerned about the anxiolytic-like effects of puerarin. The current study aimed to evaluate the anxiolytic-like effects of puerarin and its possible mechanism. To evaluate this, the behavioral tests, i.e. Vogel-type conflict test (VTCT), elevated plus-maze test (EPMT), and open-field test (OFT) were conducted...
November 3, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29094233/a-chinese-case-of-prevotella-intermedia-and-streptococcus-constellatus-intracranial-mixed-infection
#10
Shanying Mo, Liuhua Wei, Hongmou Chen, Rui Li, Shuping Li, Guolan Luo
Streptococcal Species is increasingly recognized as a potentially preventable emerging infection in human's brain with high prevalence around the world. Streptococcus constellatus is one of the most common pathogens. Meanwhile, anaerobic bacteria are the rare causes for intracranial infection. To date, intracranial mixed infection caused by Prevotella intermedia and Streptococcus constellatus has not been reported. We reported a Chinese case to raise the global awareness of severity of the intracranial mixed infection...
November 2, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29090380/central-nervous-system-aquaporin4-autoimmunity-revealed-by-a-single-pseudotumoral-encephalic-lesion
#11
Guillaume Fargeot, J Aboab, J Savatovsky, R Marignier, A Lecler, O Gout
The radiological spectrum of neuromyelitis optica has become broader since the detection of aquaporin4 antibodies. We report a case of neuromyelitis optica patient with pseudotumoral encephalic lesion. A 66 year-old woman presented with sudden left lateral homonymous hemianopsia. A brain MRI showed an isolated and extensive right temporo-parieto-occipital lesion, involving periventricular white matter and the corpus callosum, with strong enhancement on post-gadolinium T1 weighted images, highly suggestive of lymphoma...
October 31, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29086235/asiatic-acid-prevents-the-quinolinic-acid-induced-oxidative-stress-and-cognitive-impairment
#12
Chitra Loganathan, Palvannan Thayumanavan
Increased accumulation of endogenous neurotoxin quinolinic acid has been found in various neurodegenerative diseases. Oxidative stress caused by quinolinic acid is considered as imperative factor for its toxicity. Asiatic acid, a natural triterpene is widely studied for its various medicinal values. In the present study the effects of asiatic acid in preventing the cognitive impairment and oxidative stress caused by quinolinic acid was investigated. Male Spraque-Dawley rats were orally administered asiatic acid (30 mg/kg/day) for 28 days, while quinolinic acid toxicity-induced animals received quinolinic acid (1...
October 31, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29086102/the-anxiolytic-like-effect-of-6-styryl-2-pyrone-in-mice-involves-gabaergic-mechanism-of-action
#13
Edna Maria Camelo Chaves, Jose Eduardo Ribeiro Honório-Júnior, Caren Nádia Soares Sousa, Valdécio Silveira Monteiro, Dayanne Terra Tenório Nonato, Leonardo Pimentel Dantas, Ana Silvia Suassuna Carneiro Lúcio, José Maria Barbosa-Filho, Manoel Cláudio Azevedo Patrocínio, Glauce Socorro Barros Viana, Silvânia Maria Mendes Vasconcelos
The present work aims to investigate the anxiolytic activity of 6-styryl-2-pyrone (STY), obtained from Aniba panurensis, in behavioral tests and amino acids dosage on male Swiss mice. The animals were treated with STY (1, 10 or 20 mg), diazepam (DZP 1 or 2 mg/kg) or imipramine (IMI 30 mg/kg). Some groups were administered with flumazenil, 30 min before administration of the STYor DZP. The behavioral tests performed were open field, rota rod, elevated plus maze (EPM), hole-board (HB) and tail suspension test (TST)...
October 30, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29080930/dysfunction-of-gabaergic-neurons-in-the-parafacial-zone-mediates-sleep-disturbances-in-a-streptozotocin-induced-rat-model-of-sporadic-alzheimer-s-disease
#14
Jin-Zhi Song, Su-Ying Cui, Xiang-Yu Cui, Xiao Hu, Yu-Nu Ma, Hui Ding, Hui Ye, Yong-He Zhang
Sleep disturbances are prevalent among patients with Alzheimer's disease (AD) and often precede the onset and progression of dementia. However, there are no reliable animal models for investigating sleep disturbances in patients with sporadic AD (sAD), which accounts for more than 90% of all AD cases. In the present study, we characterize the sleep/wake cycles and explore a potential mechanism underlying sleep disturbance in a rat model of sAD induced via intracerebroventricular (icv) injection of streptozotocin (STZ)...
October 28, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29080085/dual-mtorc1-mtorc2-blocker-as-a-possible-therapy-for-tauopathy-in-cellular-model
#15
Mohamed Salama, Mahmoud Elhussiny, Alshimaa Magdy, Ahmed G Omran, Aziza Alsayed, Ramy Ashry, Wael Mohamed
Tauopathy comprises a group of disorders caused by abnormal aggregates of tau protein. In these disorders phosphorylated tau protein tends to accumulate inside neuronal cells (soma) instead of the normal axonal distribution of tau. A suggested therapeutic strategy for tauopathy is to induce autophagy to increase the ability to get rid of the unwanted tau aggregates. One of the key controllers of autophagy is mTOR. Blocking mTOR leads to stimulation of autophagy. Recently, unravelling molecular structure of mTOR showed that it is formed of two subunits: mTORC1/C2...
October 27, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29080084/up-regulation-of-fos-like-antigen-1-contributes-to-neuronal-apoptosis-in-the-cortex-of-rat-following-traumatic-brain-injury
#16
Xide Xu, Rui Jiang, Peipei Gong, Qianqian Liu, Yinan Chen, Shiqiang Hou, Debin Yuan, Jiansheng Shi, Qing Lan
Neuronal apoptosis is an important process of secondary brain injury which is induced by neurochemical signaling cascades after traumatic brain injury (TBI). Present study was designed to investigate whether FOS-like antigen 1 (Fra-1) is involved in the neuronal apoptosis. Western blot analysis and immunohistochemistry in a rat TBI model revealed a significant increase in the expression of Fra-1 in the ipsilateral brain cortex, which was in parallel with increase in the expression of active caspase-3. With immunofluorescence double-labeling, Fra-1 was colocalized with active caspase-3 and with NeuN, a neuronal marker...
October 27, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29080083/evaluation-of-metformin-effects-in-the-chronic-phase-of-spontaneous-seizures-in-pilocarpine-model-of-temporal-lobe-epilepsy
#17
Soraya Mehrabi, Nima Sanadgol, Mahmood Barati, Ali Shahbazi, Gelareh Vahabzadeh, Mitra Barzroudi, Morteza Seifi, Mazaher Gholipourmalekabadi, Fereshteh Golab
Temporal lobe epilepsy (TLE) is a common form of drug-resistant epilepsy that sometimes responds to dietary manipulation such as the 'ketogenic diet'. Here we have investigated the effects of metformin in the rat pilocaroin model of TLE. Male rats were treated with intra peritoneal injection of pilocarpine hydrochloride, in dose of 360 mg/kg to induce status epilepticus (SE). At 45 day after induction of SE, metformin was injected intraperitoneally in dose of 250 mg/kg/day for 5 days. We show that metformin potently reduces the progression of seizures and blocks seizure-induced over-expression of brain-derived neurotropic factor (BDNF) and its receptor, Tropomyosin receptor kinase B (TrkB)...
October 27, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29063448/prenatal-methamphetamine-exposure-is-associated-with-corticostriatal-white-matter-changes-in-neonates
#18
Fleur L Warton, Paul A Taylor, Christopher M R Warton, Christopher D Molteno, Pia Wintermark, Nadine M Lindinger, Lilla Zöllei, Andre van der Kouwe, Joseph L Jacobson, Sandra W Jacobson, Ernesta M Meintjes
Diffusion tensor imaging (DTI) studies have shown that prenatal exposure to methamphetamine is associated with alterations in white matter microstructure, but to date no tractography studies have been performed in neonates. The striato-thalamo-orbitofrontal circuit and its associated limbic-striatal areas, the primary circuit responsible for reinforcement, has been postulated to be dysfunctional in drug addiction. This study investigated potential white matter changes in the striatal-orbitofrontal circuit in neonates with prenatal methamphetamine exposure...
October 23, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29052075/dopamine-d1-receptor-activation-maintains-motor-coordination-and-balance-in-rats
#19
Alberto Avila-Luna, Arturo Gálvez-Rosas, Alfredo Durand-Rivera, Laura-Elisa Ramos-Languren, Camilo Ríos, José-Antonio Arias-Montaño, Antonio Bueno-Nava
Dopamine (DA) modulates motor coordination, and its depletion, as in Parkinson's disease, produces motor impairment. The basal ganglia, cerebellum and cerebral cortex are interconnected, have functional roles in motor coordination, and possess dopamine D1 receptors (D1Rs), which are expressed at a particularly high density in the basal ganglia. In this study, we examined whether the activation of D1Rs modulates motor coordination and balance in the rat using a beam-walking test that has previously been used to detect motor coordination deficits...
October 19, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29047041/a-profound-computational-study-to-prioritize-the-disease-causing-mutations-in-prps1-gene
#20
Ashish Kumar Agrahari, P Sneha, C George Priya Doss, R Siva, Hatem Zayed
Charcot-Marie-Tooth disease (CMT) is one of the most commonly inherited congenital neurological disorders, affecting approximately 1 in 2500 in the US. About 80 genes were found to be in association with CMT. The phosphoribosyl pyrophosphate synthetase 1 (PRPS1) is an essential enzyme in the primary stage of de novo and salvage nucleotide synthesis. The mutations in the PRPS1 gene leads to X-linked Charcot-Marie-Tooth neuropathy type 5 (CMTX5), PRS super activity, Arts syndrome, X-linked deafness-1, breast cancer, and colorectal cancer...
October 18, 2017: Metabolic Brain Disease
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