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https://www.readbyqxmd.com/read/27910893/interference-with-protease-activated-receptor-1-alleviates-neuronal-cell-death-induced-by-lipopolysaccharide-stimulated-microglial-cells-through-the-pi3k-akt-pathway
#1
Yuxin Li, Wuyang Yang, Alfredo Quinones-Hinojosa, Baocheng Wang, Shujun Xu, Weijie Zhu, Feng Yu, Shaoji Yuan, Peigang Lu
Excessive microglial cells activation in response to inflammatory stimuli leads to synaptic loss, dysfunction, and neuronal cell death. Activated microglia are involved in the pathogenesis of neurological conditions and frequently contribute to several complications. Accumulating evidence suggests that signaling through PAR-1 is involved in inflammation, however, its function has yet to be fully elucidated. Here, we have demonstrated that the suppression of PAR-1 leads to down-regulation of inflammatory factors including IL-1β, IL-6, TNF-α, NO, as well as the prevention of activation of NF-κB in BV2 cells...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27909400/the-demise-of-the-synapse-as-the-locus-of-memory-a-looming-paradigm-shift
#2
Patrick C Trettenbrein
Synaptic plasticity is widely considered to be the neurobiological basis of learning and memory by neuroscientists and researchers in adjacent fields, though diverging opinions are increasingly being recognized. From the perspective of what we might call "classical cognitive science" it has always been understood that the mind/brain is to be considered a computational-representational system. Proponents of the information-processing approach to cognitive science have long been critical of connectionist or network approaches to (neuro-)cognitive architecture, pointing to the shortcomings of the associative psychology that underlies Hebbian learning as well as to the fact that synapses are practically unfit to implement symbols...
2016: Frontiers in Systems Neuroscience
https://www.readbyqxmd.com/read/27908630/non-linear-dose-response-of-aluminium-hydroxide-adjuvant-particles-selective-low-dose-neurotoxicity
#3
Guillemette Crépeaux, Housam Eidi, Marie-Odile David, Yasmine Baba-Amer, Eleni Tzavara, Bruno Giros, François-Jérôme Authier, Christopher Exley, Christopher A Shaw, Josette Cadusseau, Romain K Gherardi
Aluminium (Al) oxyhydroxide (Alhydrogel(®)), the main adjuvant licensed for human and animal vaccines, consists of primary nanoparticles that spontaneously agglomerate. Concerns about its safety emerged following recognition of its unexpectedly long-lasting biopersistence within immune cells in some individuals, and reports of chronic fatigue syndrome, cognitive dysfunction, myalgia, dysautonomia and autoimmune/inflammatory features temporally linked to multiple Al-containing vaccine administrations. Mouse experiments have documented its capture and slow transportation by monocyte-lineage cells from the injected muscle to lymphoid organs and eventually the brain...
November 28, 2016: Toxicology
https://www.readbyqxmd.com/read/27908533/relevance-of-antiphospholipid-antibodies-in-multiple-sclerosis-a-systematic-review-and-meta-analysis
#4
Mira Merashli, Jose Delgado Alves, Fabrizio Gentile, Paul R J Ames
BACKGROUND: The relationship between antiphospholipid antibodies (aPL) and multiple sclerosis (MS) is unclear. OBJECTIVES: To evaluate a link between aPL and MS. METHODS: EMBASE and PubMed search to August 2016; Peto's odds ratio (OR) meta-analysis. RESULTS: The pooled prevalence of participants positive for IgG and IgM anticardiolipin (aCL) from 12 case-control studies was superior in MS than controls (6.8% vs 1.8%, p = 0...
October 3, 2016: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/27907954/today-s-approach-to-treating-brain-swelling-in-the-neuro-intensive-care-unit
#5
Shreyansh Shah, W Taylor Kimberly
Brain swelling is an urgent clinical problem that frequently accompanies ischemic stroke, brain hemorrhage, and traumatic brain injury; it increases morbidity and mortality associated with them. It occurs due to failure of membrane transporters and leakage of the blood-brain barrier (BBB), resulting in combination of cytotoxic, ionic, and vasogenic edema. Currently, decompressive craniectomy and osmotherapy are the mainstays of management, but these therapies do not halt the underlying molecular cascade leading to brain swelling...
December 2016: Seminars in Neurology
https://www.readbyqxmd.com/read/27907162/simultaneous-11c-methionine-positron-emission-tomography-magnetic-resonance-imaging-of-suspected-primary-brain-tumors
#6
Cornelius Deuschl, Sophia Goericke, Johannes Grueneisen, Lino Morris Sawicki, Juliane Goebel, Nicolai El Hindy, Karsten Wrede, Ina Binse, Thorsten Poeppel, Harald Quick, Michael Forsting, Joerg Hense, Lale Umutlu, Marc Schlamann
INTRODUCTION: The objective of this study was to assess the diagnostic value of integrated 11C- methionine PET/MRI for suspected primary brain tumors, in comparison to MRI alone. MATERIAL AND METHODS: Forty-eight consecutive patients with suspected primary brain tumor were prospectively enrolled for an integrated 11C-methionine PET/MRI. Two neuro-radiologists separately evaluated the MRI alone and the integrated PET/MRI data sets regarding most likely diagnosis and diagnostic confidence on a 5-point scale...
2016: PloS One
https://www.readbyqxmd.com/read/27905341/heidenhain-variant-of-creutzfeldt-jakob-disease-in-a-patient-who-had-bovine-bioprosthetic-valve-implantation
#7
Jehard Hashoul, Waleed Saliba, Irina Bloch, Haneen Jabaly-Habib
Creutzfeldt-Jakob disease (CJD) is a rare neurodegenerative disorder characterized by rapidly progressing dementia, general neurologic deterioration, and death. When the leading symptoms are visual disturbances, it is termed as the Heidenhain variant of CJD (HvCJD). CJD was reported following prion-contaminated pericardium transplants but never after bovine bioprosthetic cardiac valve. In this case report, we describe HvCJD in a patient who had a bovine bioprosthetic cardiac valve implant. An 82-year-old-woman was referred to neuro-ophthalmology clinic for unexplained visual loss that started 1 month previously...
October 2016: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/27904702/ethanol-extracts-from-portulaca-oleracea-l-attenuated-ischemia-reperfusion-induced-rat-neural-injury-through-inhibition-of-hmgb1-induced-inflammation
#8
Chenggang Zheng, Chen Liu, Wanyin Wang, Gusheng Tang, Liwei Dong, Juan Zhou, Zhengrong Zhong
It is well demonstrated that the high mobility group box 1 (HMGB1) mediated inflammation has been implicated as one of the important causes for brain damage induced by cerebral ischemia/reperfusion (I/R). In the present study, we assessed the neuro-protective and anti-inflammation effects of the ethanol extracts from Portulaca oleracea L. (EEPO) against cerebral I/R injury in the rat transient middle cerebral artery occlusion (tMCAO) model. Rats were administrated with their respective treatment for 7 days before the MCA occlusion...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27904478/neuro-rejuvenation-for-neuronal-function
#9
REVIEW
Yuan Liu, Richard K Lee
Neurodegenerative eye diseases, such as glaucoma, cause irreversible vision loss in millions of patients worldwide, creating serious medical, economic and social issues. Like other mammalian central nervous system tracts, optic nerve intrinsically lacks the capacity for axonal growth and its surrounding environment is also non-permissive to regeneration. Any axonal damage also triggers a vicious cycle of retinal ganglion cell (RGC) death. Exploring methods that can enhance RGCs survival and promote axonal regeneration will not only enable vision restoration for millions of patients, but also shed light on the treatment of other neurodegenerative diseases...
October 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/27904107/epidermoid-cyst-in-an-intrapancreatic-accessory-spleen-case-report-and-literature-review-of-the-preoperative-imaging-findings
#10
Shin Kato, Hideki Mori, Moriya Zakimi, Koki Yamada, Kenji Chinen, Masayuki Arashiro, Susumu Shinoura, Kaoru Kikuchi, Takahiro Murakami, Fumihito Kunishima
An epidermoid cyst arising within an intrapancreatic accessory spleen (ECIAS) is rare, and also difficult to correctly diagnose before surgery. It is mostly misdiagnosed as a cystic tumor, such as a mucinous cystic neoplasm or as a solid tumor with cystic degeneration, such as a neuro endocrine tumor. We herein report a case of ECIAS and also perform a literature review of 35 reports of ECIAS. Although the preoperative diagnosis of ECIAS using conventional imaging is relatively difficult to make, careful preoperative examinations of the features on computed tomography and magnetic resonance imaging could lead to a correct preoperative diagnosis of ECIAS which might thereby reduce the number of unnecessary resections...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27902378/neuronal-retrograde-transport-of-borna-disease-virus-occurs-in-signaling-endosomes
#11
Caroline M Charlier, Solène Debaisieux, Charlotte Foret, Anne Thouard, Giampetro Schiavo, Daniel Gonzalez-Dunia, Cécile Evelyne Malnou
Long-range axonal retrograde transport is a key mechanism for the cellular dissemination of neuro-invasive viruses, such as Borna Disease Virus (BDV), for which entry and egress sites are usually distant from the nucleus, where viral replication takes place. Although BDV is known to disseminate very efficiently in neurons, both in vivo and in primary cultures, the modalities of its axonal transport are still poorly characterized. In this work, we combined different methodological approaches, such as confocal microscopy and biochemical purification of endosomes, to study BDV retrograde transport...
November 8, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27897267/increasing-bmi-is-associated-with-reduced-expression-of-p-glycoprotein-abcb1-gene-in-the-human-brain-with-a-stronger-association-in-african-americans-than-caucasians
#12
J Vendelbo, R H Olesen, J K Lauridsen, J Rungby, J E Kleinman, T M Hyde, A Larsen
The efflux pump, p-glycoprotein, controls bioavailability and excretion of pharmaceutical compounds. In the blood-brain barrier, p-glycoprotein regulates the delivery of pharmaceutical substances to the brain, influencing efficacy and side effects for some drugs notably antipsychotics. Common side effects to antipsychotics include obesity and metabolic disease. Polymorphisms in the ABCB1 gene coding for p-glycoprotein are associated with more severe side effects to neuro-pharmaceuticals as well as weight gain, indicating a potential link between p-glycoprotein function and metabolic regulation...
November 29, 2016: Pharmacogenomics Journal
https://www.readbyqxmd.com/read/27896329/myasthenia-gravis-with-acute-respiratory-failure-in-the-emergency-department
#13
Hasan Huseyin Kozak, Ali Ulvi Uca, Turgut Teke, Mustafa Altas, Emine Karatas
Acute respiratory failure (ARF) is defined as a sudden malfunction in the ability of respiratory system to maintain adequate gas exchange. Acute hypercapnic respiratory failure develops as a result of ventilation deficiency and it is defined as an increase of PaCO2 above 45 mmHg. Myasthenia Gravis (MG) is a sporadically developing auto-immune deficiency where the neuro-muscular transmission is affected and it is one of the important reasons for neurologically-induced respiratory distress. Here, we report a case of a 75-year-old male patient previously undiagnosed MG, who presented with ARF...
June 2016: Turkish Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27894933/parasitism-personality-and-cognition-in-fish
#14
REVIEW
I Barber, A B Mora, E M Payne, K L Weinersmith, A Sih
It is well established that parasites can have profound effects on the behaviour of host organisms, and that individual differences in behaviour can influence susceptibility to parasite infections. Recently, two major themes of research have developed. First, there has been a growing interest in the proximate, mechanistic processes underpinning parasite-associated behaviour change, and the interactive roles of the neuro-, immune, and other physiological systems in determining relationships between behaviour and infection susceptibility...
November 25, 2016: Behavioural Processes
https://www.readbyqxmd.com/read/27894901/bilingualism-yields-language-specific-plasticity-in-left-hemisphere-s-circuitry-for-learning-to-read-in-young-children
#15
K K Jasińska, M S Berens, I Kovelman, L A Petitto
How does bilingual exposure impact children's neural circuitry for learning to read? Theories of bilingualism suggests that exposure to two languages may yield a functional and neuroanatomical adaptation to support the learning of two languages (Klein et al., 2014). To test the hypothesis that this neural adaptation may vary as a function of structural and orthographic characteristics of bilinguals' two languages, we compared Spanish-English and French-English bilingual children, and English monolingual children, using functional Near Infrared Spectroscopy neuroimaging (fNIRS, ages 6-10, N = 26)...
November 25, 2016: Neuropsychologia
https://www.readbyqxmd.com/read/27894396/ellagic-acid-ameliorates-cuprizone-induced-acute-cns-inflammation-via-restriction-of-microgliosis-and-down-regulation-of-ccl2-and-ccl3-pro-inflammatory-chemokines
#16
N Sanadgol, F Golab, A Mostafaie, M Mehdizadeh, M Abdollahi, M Sharifzadeh, H Ravan
Ellagic acid (EA) is a natural phenol antioxidant with various therapeutic activities. However, the efficacy of EA has not been examined in neuro-inflammatory conditions. Microglia making the innate immune system of the central nervous system (CNS) and are imperative cellular mediators of neuro-inflammatory processes. In this study, neuro-protective effects of EA on cuprizone (Cup)-induced acute CNS inflammation evaluated. C57BL/6J mice were fed with chow containing 0.2 % Cup for 3 weeks to induce acute neuro-inflammation predominantly in the corpus callosum (CC)...
October 31, 2016: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/27893741/downregulation-of-blood-monocyte-hla-dr-in-icu-patients-is-also-present-in-bone-marrow-cells
#17
Valérie Faivre, Anne-Claire Lukaszewicz, Didier Payen
BACKGROUND: The downregulation of blood monocyte HLA-DR expression also occurs in tissue infiltrative cells in a context of acute clinical inflammation, especially sepsis. This context favors the development of secondary infections and results from various mechanisms. Little is known about HLA-DR expression on bone marrow (BM) cells of the monocyte lineage, the source of circulating monocytes. This study analyzed the BM HLA-DR expression in ICU patients compared to BM monocytes from non-ICU patients and to blood monocytes of control healthy donors...
2016: PloS One
https://www.readbyqxmd.com/read/27892614/validation-of-a-prognostic-index-for-huntington-s-disease
#18
Jeffrey D Long, Douglas R Langbehn, Sarah J Tabrizi, Bernhard G Landwehrmeyer, Jane S Paulsen, John Warner, Cristina Sampaio
BACKGROUND: Characterizing progression in Huntington's disease is important for study the natural course and selecting appropriate participants for clinical trials. OBJECTIVES: The aim was to develop a prognostic index for motor diagnosis in Huntington's disease and examine its predictive performance in external observational studies. METHODS: The prediagnosis Neuro-biological Predictors of Huntington's Disease study (N = 945 gene-positive) was used to select a Cox regression model for computing a prognostic index...
November 28, 2016: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/27891471/comparison-of-gingival-health-and-salivary-parameters-among-autistic-and-non-autistic-school-children-in-riyadh
#19
Hafez M Diab, Suha Saeed Motlaq, Amal Alsharare, Ashwaq Alshammery, Nadia Alshammery, Shabnam Gulzar Khawja, Altaf H Shah
INTRODUCTION: Autism is a neuro-developmental disorder which is manifested as impairment of social interaction, communication and a repetitive behaviour. Autism can obscure dental treatment for the affected patients; furthermore, children with autism commonly have destructive oral habits. AIM: The aims of this study were to evaluate the Modified Gingival Index (MGI), Plaque Index (PI), salivary pH and buffering capacity of the saliva among autistic children compared to normal children in Riyadh City that may provide baseline data to enable comparison and future planning of dental services for autistic children...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27891396/endoscopic-excision-of-symptomatic-simple-bone-cyst-at-skull-base
#20
Prashant Gunawat, Salman Tehran Shaikh, Vikram Karmarkar, Chandrashekhar Deopujari, Nishit Shah
Seizure is a classical feature of intra axial brain parenchymal lesion. Simple bone cyst is an unusual bony pathology at skull base presenting with unexpected symptoms of complex partial seizures. Skull base neuro-endoscopy has managed such lesions more effectively with reduced post-operative morbidity as compared to transcranial approach. This case report discusses a 20-year-old male who presented with 3 episodes of seizure over a time period of 10 months. MRI brain revealed T1 hypo and T2 hyper intense cystic lesion in middle cranial fossa with no enhancement on contrast administration...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
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