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https://www.readbyqxmd.com/read/28109197/everolimus-is-better-than-rapamycin-in-attenuating-neuroinflammation-in-kainic-acid-induced-seizures
#1
Ming-Tao Yang, Yi-Chin Lin, Whae-Hong Ho, Chao-Lin Liu, Wang-Tso Lee
BACKGROUND: Microglia is responsible for neuroinflammation, which may aggravate brain injury in diseases like epilepsy. Mammalian target of rapamycin (mTOR) kinase is related to microglial activation with subsequent neuroinflammation. In the present study, rapamycin and everolimus, both as mTOR inhibitors, were investigated in models of kainic acid (KA)-induced seizure and lipopolysaccharide (LPS)-induced neuroinflammation. METHODS: In vitro, we treated BV2 cells with KA and LPS...
January 21, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28109186/interleukin-1-as-a-mediator-of-fatigue-in-disease-a-narrative-review
#2
REVIEW
Megan E Roerink, Marieke E van der Schaaf, Charles A Dinarello, Hans Knoop, Jos W M van der Meer
Fatigue is commonly reported in a variety of illnesses, and it has major impact on quality of life. Previously, it was thought that fatigue originates in the skeletal muscles, leading to cessation of activity. However, more recently, it has become clear that the brain is the central regulator of fatigue perception. It has been suggested that pro-inflammatory cytokines, especially interleukin-1 alpha (IL-1α) and interleukin-1 beta (IL-1β), play a prominent role in the development of central fatigue, and several studies have been performed to elucidate the connection between inflammation and these central processes...
January 21, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28108988/blood-brain-barrier-closure-time-after-controlled-ultrasound-induced-opening-is-independent-of-opening-volume
#3
Meaghan A O'Reilly, Olivia Hough, Kullervo Hynynen
OBJECTIVES: Microbubble-mediated focused ultrasound (US) opening of the blood-brain barrier (BBB) has shown promising results for the treatment of brain tumors and conditions such as Alzheimer disease. Practical clinical implementation of focused US treatments would aim to treat a substantial portion of the brain; thus, the safety of opening large volumes must be investigated. This study investigated whether the opened volume affects the time for the BBB to be restored after treatment...
January 21, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28108911/traditional-chinese-medicine-for-modern-treatment-of-parkinson-s-disease
#4
REVIEW
Lu Han, Yuan-Hong Xie, Rong Wu, Chen Chen, Yan Zhang, Xiao-Ping Wang
Parkinson's disease (PD) is a chronic and progressive degenerative disorder of brain commonly seen among the elderly. As conventionally medical therapy is of limited relief and potential side effects, complementary and alternative medicine (CAM) has attracted growing public and professional attention. Therapies such as acupuncture, musical/rhythmic therapy and deep brain stimulation have been gradually proved positively in clinic. In this review, we retrospected the scientific or evidence-based-medicine advances of application and research for modern treatment of PD by CAM, especially traditional Chinese medicine in categories...
January 20, 2017: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28108859/the-arc-gene-confers-genetic-susceptibility-to-alzheimer-s-disease-in-han-chinese
#5
Rui Bi, Li-Li Kong, Min Xu, Guo-Dong Li, Deng-Feng Zhang, Tao Li, Yiru Fang, Chen Zhang, Buchang Zhang, Yong-Gang Yao
Alzheimer's disease (AD) is the most common form of dementia. The deposition of β-amyloid (Aβ) plaques in the brain was considered one of the main neuropathological hallmarks of AD. As the loss of synapses always occurs during AD progression, AD has been gradually regarded as a "synaptopathy." The activity-regulated cytoskeleton-associated protein (Arc) was recently identified as a key factor for AD due to its active roles in synaptic plasticity, learning, memory, and Aβ generation. However, there is little evidence to support the association of the Arc gene with AD...
January 20, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28108849/toll-like-receptor-4-affects-the-cerebral-biochemical-changes-induced-by-mptp-treatment
#6
Carmela Conte, Luca Roscini, Roccaldo Sardella, Giuseppina Mariucci, Stefania Scorzoni, Tommaso Beccari, Laura Corte
The etiology and pathogenesis of Parkinson's disease (PD) are still unclear. However, multiple lines of evidence suggest a critical role of the toll like receptor 4 (TLR4) in inflammatory response and neuronal death. Neuroinflammation may be associated with the misfolding and aggregation of proteins accompanied by a change in their secondary structure. Recent findings also suggest that biochemical perturbations in cerebral lipid content could contribute to the pathogenesis of central nervous system (CNS) disorders, including PD...
January 21, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28108838/clinical-impact-of-preoperative-brain-mr-angiography-and-mr-imaging-in-candidates-for-liver-transplantation-a-propensity-score-matching-study-in-a-single-institution
#7
Mi Sun Chung, Ho Sung Kim, Young-Suk Lim, Sang-Beom Jeon, Seon-Ok Kim, Hwa Jung Kim, Shin Hwang, Seung Chai Jung, Choong Gon Choi, Sang Joon Kim
OBJECTIVES: To investigate the prevalence of cerebrovascular stenosis and white matter lesions on preoperative magnetic resonance angiography (MRA) and magnetic resonance imaging (MRI) in liver transplantation candidates. METHODS: This retrospective study included 1,460 consecutive patients with liver cirrhosis (LC) who underwent MRA with/without brain MRI for pretransplantation evaluation. These patients were matched with 5,331 controls using propensity scores, and the prevalences of significant cerebrovascular stenosis and white matter lesions were compared...
January 20, 2017: European Radiology
https://www.readbyqxmd.com/read/28108637/tomm40-523-variant-and-cognitive-decline-in-older-persons-with-apoe-%C3%AE%C2%B53-3-genotype
#8
Lei Yu, Michael W Lutz, Robert S Wilson, Daniel K Burns, Allen D Roses, Ann M Saunders, Chris Gaiteri, Philip L De Jager, Lisa L Barnes, David A Bennett
OBJECTIVE: To interrogate a poly-T variant (rs10524523, '523) in TOMM40, a gene adjacent to the APOE gene on chromosome 19, in older persons with APOE ε3/3 homozygosity for association with cognitive decline, the clinical hallmark of Alzheimer disease (AD). METHODS: Data came from participants in 2 cohort studies of aging and dementia who underwent annual clinical evaluations for up to 21 years. APOE and TOMM40'523 genotypes were determined from DNA from blood or brain samples...
January 20, 2017: Neurology
https://www.readbyqxmd.com/read/28108572/use-of-ldl-receptor-targeting-peptide-vectors-for-in-vitro-and-in-vivo-cargo-transport-across-the-blood-brain-barrier
#9
Yves Molino, Marion David, Karine Varini, Françoise Jabès, Nicolas Gaudin, Aude Fortoul, Karima Bakloul, Maxime Masse, Anne Bernard, Lucile Drobecq, Pascaline Lécorché, Jamal Temsamani, Guillaume Jacquot, Michel Khrestchatisky
The blood-brain barrier (BBB) prevents the entry of many drugs into the brain and, thus, is a major obstacle in the treatment of CNS diseases. There is some evidence that the LDL receptor (LDLR) is expressed at the BBB and may participate in the transport of endogenous ligands from blood to brain, a process referred to as receptor-mediated transcytosis. We previously described a family of peptide vectors that were developed to target the LDLR. In the present study, in vitro BBB models that were derived from either wild-type and LDLR knockout animals (ldlr(-/-)) were used to validate the specific LDLR-dependent transcytosis of LDL via a nondegradative route...
January 20, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28108567/role-of-the-frozen-elephant-trunk-procedure-for-chronic-aortic-dissection
#10
Eric E Roselli, Faisal G Bakaeen, Douglas R Johnston, Edward G Soltesz, Michael Z Tong
OBJECTIVES: Considering the chronic and progressive nature of aortic dissection, operative planning must anticipate the need for later interventions. We have increasingly used a modified version of the frozen elephant trunk repair operation to treat these patients. We review the indications, considerations for planning, and important operative details for performing frozen elephant trunk repair for chronic aortic dissection. METHODS: Frozen elephant trunk repair is performed using selective antegrade brain perfusion, direct placement of commercially available stent grafts with suture fixation in the aortic arch, and proximal aortic replacement...
January 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28108533/noncerebral-amyloidoses-aspects-on-seeding-cross-seeding-and-transmission
#11
Gunilla T Westermark, Marcus Fändrich, Katarzyna Lundmark, Per Westermark
More than 30 proteins form amyloid in humans, most of them outside of the brain. Deposition of amyloid in extracerebral tissues is very common and seems inevitable for an aging person. Most deposits are localized, small, and probably without consequence, but in some instances, they are associated with diseases such as type 2 diabetes. Other extracerebral amyloidoses are systemic, with life-threatening effects on the heart, kidneys, and other organs. Here, we review how amyloid may spread through seeding and whether transmission of amyloid diseases may occur between humans...
January 20, 2017: Cold Spring Harbor Perspectives in Medicine
https://www.readbyqxmd.com/read/28108532/tdp-43-prions
#12
Takashi Nonaka, Masato Hasegawa
The most common neurodegenerative diseases, such as Alzheimer's, Parkinson's, and amyotrophic lateral sclerosis, are all protein-misfolding diseases and are characterized by the presence of disease-specific protein aggregates in affected neuronal cells. Recent studies have shown that, like tau and α-synuclein, TAR-DNA binding protein of 43 kDa (TDP-43) can form aggregates in vitro in a seed-dependent, self-templating, prion-like manner. Insoluble TDP-43 prepared from the brains of patients has been classified into several strains, which can be transferred from cell to cell in vitro, suggesting the involvement of mechanisms reminiscent of those by which prions spread through the nervous system...
January 20, 2017: Cold Spring Harbor Perspectives in Medicine
https://www.readbyqxmd.com/read/28108398/association-between-butyrylcholinesterase-and-cerebrospinal-fluid-biomarkers-in-alzheimer-s-disease-patients
#13
António José Gabriel, Maria Rosário Almeida, Maria Helena Ribeiro, João Durães, Miguel Tábuas-Pereira, Ana Cristina Pinheiro, Rui Pascoal, Isabel Santana, Inês Baldeiras
The deficit of cholinergic activity is one of the main findings in Alzheimer's disease (AD), and is related to the synthesis of acetylcholine, and the hydrolysing enzymes, acetylcholinesterase and butyrylcholinesterase (BuChE). Together with the Apolipoprotein E-ε4 allele (ApoE-ε4), the BuChE-K variant has been proposed to increase AD risk in certain populations. In addition, this polymorphism has been associated with a lower capacity to attenuate β-amyloid aggregation. In the present study we explored the interaction of the BuChE-K variant with its activity in CSF, conventional AD biomarkers and ApoE genotype...
January 17, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28108334/a-study-of-glutamate-levels-nr1-nr2a-nr2b-receptors-and-oxidative-stress-in-rat-model-of-japanese-encephalitis
#14
Prashant Singh Chauhan, Usha Kant Misra, Jayantee Kalita
There is paucity of studies on the role of glutamate excitotoxicity in cell damage in Japanese encephalitis. In this study the glutamate levels, its NMDA receptors, oxidative stress markers in different brain regions have been evaluated and correlated with neurobehavioral changes at different time points. Twelve day old Wistar rats were inoculated with 3×10(6)pfu/ml intracerebrally. The neurobehavioral effects were evaluated by spontaneous locomotor activity (SLA), grip strength and rota rod test on 10, 33 and 48days post inoculation (dpi)...
January 17, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28108320/modulation-on-brain-gray-matter-activity-and-white-matter-integrity-by-apoe-%C3%AE%C2%B54-risk-gene-in-cognitively-intact-elderly-a-multimodal-neuroimaging-study
#15
Suping Cai, Yuanyuan Jiang, Yubo Wang, Xiaoming Wu, Junchan Ren, Min Seob Lee, Sunghoon Lee, Liyu Huang
Apolipoprotein E (APOE) ε4 allele is the genetic risk factor with the most established evidence for sporadic Alzheimer's disease. Previous neuroimaging studies have demonstrated insufficiently consistent functional and structural changes among healthy APOE ε4 carriers when compared to non-carriers. Here, in a cognitively intact elderly group (a total of 110: 45 APOE ε4 carriers, 65 non-carriers), we aimed to investigate the potential role of APOE ε4 in the modulation of grey matter activity, white matter integrity, and brain morphology before the development of clinically significant symptoms and signs, by methods of: amplitude of low frequency fluctuations and regional homogeneity analysis based on resting state fMRI, and fiber tractography approach based on diffusion tensor imaging...
January 17, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28108276/hydrogen-sulfide-reduces-rage-toxicity-through-inhibition-of-its-dimer-formation
#16
Hong Zhou, Lei Ding, Zhiyuan Wu, Xu Cao, Qichun Zhang, Li Lin, Jin-Song Bian
RAGE is important in the development of neurodegenerative diseases. The present study was designed to investigate the effect of hydrogen sulfide (H2S, an endogenous gaseous mediator) on the cytotoxicity caused by RAGE activation during the chronic oxidative stress. Aβ1-42 decreased cell viability and induced cell senescence in SH-SY5Y cells. Treatment with advanced glycation end products (AGEs) induced cell injury in HEK293 cells stably expressing RAGE (HEK293-RAGE) and stimulated inflammatory responses in SH-SY5Y cells...
January 17, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28108264/iron-accumulation-and-microglia-activation-contribute-to-substantia-nigra-hyperechogenicity-in-the-6-ohda-induced-rat-model-of-parkinson-s-disease
#17
Yaqin Zhu, Bao Wang, Kai Tao, Hengli Yang, Yixiao Wang, Tian Zhou, Yilin Yang, Lijun Yuan, Xi Liu, Yunyou Duan
INTRODUCTION: This study aims to explain the mechanisms for the formation of sonographic features of Parkinson's disease (PD) using a 6-hydroxydopamine (6-OHDA) rat model of PD. The iron chelator deferiprone (DFP) was used in the PD model rat to examine the relationship between iron and the echo signal. METHODS: Rat models were created using stereotactic injections of 6-OHDA. DFP was administered intragastrically. Transcranial sonography (TCS) was performed to observe the substantia nigra (SN) echo signal of the brain...
January 6, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28108227/cerebral-blood-flow-autoregulation-is-impaired-in-schizophrenia-a-pilot-study
#18
Hsiao-Lun Ku, Jiunn-Kae Wang, Hsin-Chien Lee, Timothy Joseph Lane, I-Chao Liu, Yung-Chan Chen, Yao-Tung Lee, I-Cheng Lin, Chia-Pei Lin, Chaur-Jong Hu, Nai-Fang Chi
Patients with schizophrenia have a higher risk of cardiovascular diseases and higher mortality from them than does the general population; however, the underlying mechanism remains unclear. Impaired cerebral autoregulation is associated with cerebrovascular diseases and their mortality. Increased or decreased cerebral blood flow in different brain regions has been reported in patients with schizophrenia, which implies impaired cerebral autoregulation. This study investigated the cerebral autoregulation in 21 patients with schizophrenia and 23 age- and sex-matched healthy controls...
January 17, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28108112/the-olfactory-neural-epithelium-as-a-tool-in-neuroscience
#19
Joëlle Lavoie, Patricia Gassó Astorga, Hadar Segal-Gavish, YeeWen Candace Wu, Youjin Chung, Nicola G Cascella, Akira Sawa, Koko Ishizuka
Capturing both dynamic changes (state) and persistent signatures (trait) directly associated with disease at the molecular level is crucial in modern medicine. The olfactory neural epithelium, easily accessible in clinical settings, is a promising surrogate model in translational brain medicine, complementing the limitations in current engineered cell models.
January 17, 2017: Trends in Molecular Medicine
https://www.readbyqxmd.com/read/28107789/open-access-platforms-in-spinal-cord-injury
#20
John L K Kramer, Fred Geisler, Leanne Ramer, Ward Plunet, Jacquelyn J Cragg
Recovery from acute spinal cord injury (SCI) is characterized by extensive heterogeneity, resulting in uncertain prognosis. Reliable prediction of recovery in the acute phase benefits patients and their families directly, as well as improves the likelihood of detecting efficacy in clinical trials. This issue of heterogeneity is not unique to SCI. In fields such as traumatic brain injury, Parkinson's disease, and amyotrophic lateral sclerosis, one approach to understand variability in recovery has been to make clinical trial data widely available to the greater research community...
January 1, 2017: Neurorehabilitation and Neural Repair
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