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https://www.readbyqxmd.com/read/28441836/-clinical-value-of-prenatal-mri-in-the-diagnosis-of-fetal-simple-expansion-of-lateral-ventricle-and-follow-up-after-birth
#1
Z Li, P Y He, Z Q Luo, L M Pan, Y N Chen, G S Shen, Z H Fei, M Y Li, X M Fang, L H Qi, M S Liu
Objective: To explore the value of prenatal MRI in the diagnosis of fetal simple expansion of lateral ventricle (ventriculomegaly) , and follow up the nervous system development status after birth. Methods: Simple expansion of the lateral ventricle fetus by prenatal MRI examination were collected in Huzhou Maternal and Child Care Hospital from May 2013 to June 2015, 126 cases of live births in expansion group, 50 normal cases were recruited in the same period as the control group. In expansion group, fetal subgroup analysis was done: (1) unilateral or bilateral lateral ventricle expasion: one group was 98 cases was lateral ventricle expansion (77...
April 25, 2017: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/28441776/gold-nanoparticles-for-modulating-neuronal-behavior
#2
REVIEW
Chiara Paviolo, Paul R Stoddart
Understanding the detailed functioning and pathophysiology of the brain and the nervous system continues to challenge the scientific community, particularly in terms of scaling up techniques for monitoring and interfacing with complex 3D networks. Nanotechnology has the potential to support this scaling up, where the eventual goal would be to address individual nerve cells within functional units of both the central and peripheral nervous system. Gold nanoparticles provide a variety of physical and chemical properties that have attracted attention as a light-activated nanoscale neuronal interface...
April 24, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28441632/emergency-computed-tomography-in-patients-with-first-seizure
#3
Kaisa Kotisaari, Pekka Virtanen, Nina Forss, Daniel Strbian, Filip Scheperjans
PURPOSE: To determine the frequency of emergent imaging findings on head computed tomography (CT) in an adult population of first seizure (FS) patients presenting to an emergency department (ED); and to search for associations between clinical features and emergent imaging findings among these patients. METHODS: For this retrospective registry-based study, adult FS patients presenting to Helsinki University Hospital ED in 2006 were identified based on ICD-10 diagnosis...
April 17, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28441631/up-regulated-baff-and-baff-receptor-expression-in-patients-with-intractable-temporal-lobe-epilepsy-and-a-pilocarpine-induced-epilepsy-rat-model
#4
Limin Ma, Ruohan Li, Hao Huang, Jinxian Yuan, Shu Ou, Tao Xu, Xinyuan Yu, Xi Liu, Yangmei Chen
PURPOSE: Some studies have suggested that BAFF and BAFFR are highly expressed in the central nervous system (CNS) and participate in inflammatory and immune associated diseases. However, whether BAFF and BAFFR are involved in the pathogenesis of epilepsy remains unknown. This study aimed to investigate the expression of BAFF and BAFFR proteins in the brains of patients with temporal lobe epilepsy (TLE) and in a pilocarpine-induced rat model of TLE to identify possible roles of the BAFF-BAFFR signaling pathway in epileptogenesis...
April 8, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28441531/myrf-er-bound-transcription-factors-drive-c-%C3%A2-elegans-synaptic-plasticity-via-cleavage-dependent-nuclear-translocation
#5
Jun Meng, Xiaoxia Ma, Huaping Tao, Xia Jin, Daniel Witvliet, James Mitchell, Ming Zhu, Meng-Qiu Dong, Mei Zhen, Yishi Jin, Yingchuan B Qi
Synaptic refinement is a critical step in nervous system maturation, requiring a carefully timed reorganization and refinement of neuronal connections. We have identified myrf-1 and myrf-2, two C. elegans homologs of Myrf family transcription factors, as key regulators of synaptic rewiring. MYRF-1 and its paralog MYRF-2 are functionally redundant specifically in synaptic rewiring. They co-exist in the same protein complex and act cooperatively to regulate synaptic rewiring. We find that the MYRF proteins localize to the ER membrane and that they are cleaved into active N-terminal fragments, which then translocate into the nucleus to drive synaptic rewiring...
April 24, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28441409/a-hypomorphic-piga-gene-mutation-causes-severe-defects-in-neuron-development-and-susceptibility-to-complement-mediated-toxicity-in-a-human-ipsc-model
#6
Xuan Yuan, Zhe Li, Andrea C Baines, Eleni Gavriilaki, Zhaohui Ye, Zhexing Wen, Evan M Braunstein, Leslie G Biesecker, Linzhao Cheng, Xinzhong Dong, Robert A Brodsky
Mutations in genes involved in glycosylphosphatidylinositol (GPI) anchor biosynthesis underlie a group of congenital syndromes characterized by severe neurodevelopmental defects. GPI anchored proteins have diverse roles in cell adhesion, signaling, metabolism and complement regulation. Over 30 enzymes are required for GPI anchor biosynthesis and PIGA is involved in the first step of this process. A hypomorphic mutation in the X-linked PIGA gene (c.1234C>T) causes multiple congenital anomalies hypotonia seizure syndrome 2 (MCAHS2), indicating that even partial reduction of GPI anchored proteins dramatically impairs central nervous system development, but the mechanism is unclear...
2017: PloS One
https://www.readbyqxmd.com/read/28440987/-tumors-of-the-central-nervous-system
#7
Marco Antonio Alegría-Loyola, Javier Andrés Galnares-Olalde, Moisés Mercado
Central nervous system (CNS) tumors constitute a heterogeneous group of neoplasms that share a considerable morbidity and mortality rate. Recent advances in the underlying oncogenic mechanisms of these tumors have led to new classification systems, which, in turn, allow for a better diagnostic approach and therapeutic planning. Most of these neoplasms occur sporadically and several risk factors have been found to be associated with their development, such as exposure to ionizing radiation or electromagnetic fields and the concomitant presence of conditions like diabetes, hypertension and Parkinson's disease...
May 2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28440972/a-comparison-between-the-diagnostic-accuracy-of-frozen-section-and-permanent-section-analyses-in-central-nervous-system
#8
Razie Amraei, Afshin Moradi, Hanieh Zham, Mahsa Ahadi, Maryam Baikpour, Azadeh Rakhshan
Objective: Using diagnostic pathological methods during surgery is a valuable means of determining the appropriate management for patients. Application of Frozen Section in CNS surgeries might face challenges due to friability of brain tissue and its relative inaccessibility. Various studies have evaluated the diagnostic acuity of frozen section compared to gold standard but results have been quite inconsistent. We conducted the present study to evaluate the accuracy of cryostat in diagnosing central nervous system tumors compared to the Gold Standard method...
March 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28440493/the-extracellular-signal-regulated-kinase-1-2-pathway-in-neurological-diseases-a-potential-therapeutic-target-review
#9
Jing Sun, Guangxian Nan
Signaling pathways are critical modulators of a variety of physiological and pathological processes, and the abnormal activation of some signaling pathways can contribute to disease progression in various conditions. As a result, signaling pathways have emerged as an important tool through which the occurrence and development of diseases can be studied, which may then lead to the development of novel drugs. Accumulating evidence supports a key role for extracellular signal-regulated kinase 1/2 (ERK1/2) signaling in the embryonic development of the central nervous system (CNS) and in the regulation of adult brain function...
April 21, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28440461/the-role-of-mir-451-in-the-switching-between-proliferation-and-migration-in-malignant-glioma-cells-ampk-signaling-mtor-modulation-and-rac1-activation-required
#10
Kai Zhao, Leilei Wang, Tao Li, Meng Zhu, Chen Zhang, Lei Chen, Pengfei Zhao, Hua Zhou, Shengping Yu, Xuejun Yang
Glioblastoma multiforme (GBM), WHO grade IV astrocytoma, is the most common primary neoplasm of the central nervous system (CNS) and has the highest malignancy and mortality rates. The invasive nature of GBM complicates surgical resection and restricts chemotherapeutic access, contributing to poor patient prognosis. The migration of tumor cells is closely related to the tumor cell proliferation. The acquisition of migratory capability, in addition to intracellular factors, is proposed to be a crucial mechanism during the progression of invasion...
April 21, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28440450/comprehensive-analysis-of-a-microrna-expression-profile-in-pediatric-medulloblastoma
#11
Junqiang Dai, Qiao Li, Zhitong Bing, Yinian Zhang, Liang Niu, Hang Yin, Guoqiang Yuan, Yawen Pan
Medulloblastoma is the most common malignant brain tumor of the central nervous system among children. Medulloblastoma is an embryonal tumor, of which little is known about the pathogenesis. Several efforts have been made to understand the molecular aspects of its tumorigenic pathways; however, these are poorly understood. microRNA (miRNA), a type of non‑coding short RNA, has been proven to be associated with a number of physiological processes and pathological processes of serious diseases, including brain tumors...
April 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28440296/gold-nanoclusters-assisted-delivery-of-ngf-sirna-for-effective-treatment-of-pancreatic-cancer
#12
Yifeng Lei, Lixue Tang, Yangzhouyun Xie, Yunlei Xianyu, Lingmin Zhang, Peng Wang, Yoh Hamada, Kai Jiang, Wenfu Zheng, Xingyu Jiang
Pancreatic cancer is one of the deadliest human cancers, whose progression is highly dependent on the nervous microenvironment. The suppression of gene expression of nerve growth factor (NGF) may have great potential in pancreatic cancer treatment. Here we show that gold nanocluster-assisted delivery of siRNA of NGF (GNC-siRNA) allows efficient NGF gene silencing and pancreatic cancer treatment. The GNC-siRNA complex increases the stability of siRNA in serum, prolongs the circulation lifetime of siRNA in blood and enhances the cellular uptake and tumour accumulation of siRNA...
April 25, 2017: Nature Communications
https://www.readbyqxmd.com/read/28440247/circulating-biomarkers-in-glaucoma-age-related-macular-degeneration-and-diabetic-retinopathy
#13
Madhu Nath, Nabanita Halder, Thirumurthy Velpandian
Biomarkers to predict the altering physiological conditions over the period leading toward the ocular disorders are of major importance in therapeutics. Isolation and validation of the biomarkers specific to ocular diseases are a challenging task. Glaucoma is a neurodegenerative disease of the eye where the correlation of biomarkers in circulating fluid may be made specific for the eye. However, conditions such as wet age-related macular degeneration (AMD) and proliferative diabetic retinopathy (DR), circulating biomarkers might be having some degree of overlap with other conditions like cancer where a common factor such as angiogenesis is involved...
March 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28439783/dourine-a-neglected-disease-of-equids
#14
REVIEW
Yonas Gizaw, Mulisa Megersa, Teka Fayera
Dourine is a venereal transmitted trypanosomosis causing a major health problem threatening equines worldwide. The origin and identification of Trypanosoma equiperdum within the subgenus Trypanozoon is still a subject of debate. Unlike other trypanosomal infections, dourine is transmitted almost exclusively by coitus. Diagnosis of dourine has continued to be a challenge, due to limited knowledge about the parasite and host-parasite interaction following infection. The pathological lesions caused by the diseases are poorly described and are observed mainly in the reproductive organs, in the nervous system, and on the skin...
April 24, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28439779/searching-for-an-internal-representation-of-stimulus-kinematics-in-the-response-of-ventral-paraflocculus-purkinje-cells
#15
Pablo M Blazquez, GyuTae Kim, Tatyana A Yakusheva
Motor control theories propose that the central nervous system builds internal representations of the motion of both our body and external objects. These representations, called forward models, are essential for accurate motor control. For instance, to produce a precise reaching movement to catch a flying ball, the central nervous system must build predictions of the current and future states of both the arm and the ball. Accumulating evidence suggests that the cerebellar cortex contains a forward model of an individual's body movement...
April 24, 2017: Cerebellum
https://www.readbyqxmd.com/read/28439722/dna-methylation-age-acceleration-is-associated-with-disease-duration-and-age-at-onset-in-c9orf72-patients
#16
Ming Zhang, Maria Carmela Tartaglia, Danielle Moreno, Christine Sato, Paul McKeever, Anna Weichert, Julia Keith, Janice Robertson, Lorne Zinman, Ekaterina Rogaeva
The repeat expansion in C9orf72 is the most common cause of amyotrophic lateral sclerosis and frontotemporal dementia. C9orf72 patients present with a wide range in disease duration and age of onset. The strongest risk factor for both syndromes is aging, which was linked to DNA methylation (DNAm) age based on the cumulative assessment of the methylation levels of 353 CpGs included on the genome-wide 450k BeadChip. DNAm age may reflect biological age better than chronological age. We conducted a genome-wide blood DNA methylation study of 46 unrelated C9orf72 patients...
April 24, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28439461/quantitative-assessment-of-fibroblast-growth-factor-receptor-1-expression-in-neurons-and-glia
#17
Lisha Choubey, Jantzen C Collette, Karen Müller Smith
BACKGROUND: Fibroblast growth factors (FGFs) and their receptors (FGFRs) have numerous functions in the developing and adult central nervous system (CNS). For example, the FGFR1 receptor is important for proliferation and fate specification of radial glial cells in the cortex and hippocampus, oligodendrocyte proliferation and regeneration, midline glia morphology and soma translocation, Bergmann glia morphology, and cerebellar morphogenesis. In addition, FGFR1 signaling in astrocytes is required for postnatal maturation of interneurons expressing parvalbumin (PV)...
2017: PeerJ
https://www.readbyqxmd.com/read/28439420/an-unusual-cause-of-fatal-rapid-onset-ataxia-plus-syndrome
#18
Ivan Kmezic, Jan Weinberg, Dan Hauzenberger, Farouk Hashim, Evangelia Kollia, Monika Klimkowska, Inger Nennesmo, Martin Paucar
BACKGROUND: Progressive multifocal leukoencephalopathy (PML) is a demyelinating disorder of the central nervous system caused by reactivation of the JC-virus and is in most cases associated with underlying immunosuppression. Acquired immune deficiency syndrome (AIDS) and hematological malignancies are well-known predisposing factors for PML. However, in the past ten years, various pharmacological agents have been associated with increased risk of PML. Based on the phenomenology PML can be divided into the cerebral form and the rare cerebellar form...
2017: Cerebellum & Ataxias
https://www.readbyqxmd.com/read/28439409/serial-deletion-reveals-structural-basis-and-stability-for-the-core-enzyme-activity-of-human-glutaminase-1-isoforms-relevance-to-excitotoxic-neurodegeneration
#19
Yuju Li, Justin Peer, Runze Zhao, Yinghua Xu, Beiqing Wu, Yi Wang, Changhai Tian, Yunlong Huang, Jialin Zheng
BACKGROUND: Glutaminase 1 is a phosphate-activated metabolic enzyme that catalyzes the first step of glutaminolysis, which converts glutamine into glutamate. Glutamate is the major neurotransmitter of excitatory synapses, executing important physiological functions in the central nervous system. There are two isoforms of glutaminase 1, KGA and GAC, both of which are generated through alternative splicing from the same gene. KGA and GAC both transcribe 1-14 exons in the N-terminal, but each has its unique C-terminal in the coding sequence...
2017: Translational Neurodegeneration
https://www.readbyqxmd.com/read/28439322/susceptibility-imaging-in-glial-tumor-grading-using-3-tesla-magnetic-resonance-mr-system-and-32-channel-head-coil
#20
Omer Aydin, Ramazan Buyukkaya, Bahattin Hakyemez
BACKGROUND: Susceptibility weighted imaging (SWI) is a velocity compensated, high-resolution three-dimensional (3D) spoiled gradient-echo sequence that uses magnitude and filtered-phase data. SWI seems to be a valuable tool for non-invasive evaluation of central nervous system gliomas. Relative cerebral blood volume (rCBV) ratio is one of the best noninvasive methods for glioma grading. Degree of intratumoral susceptibility signal (ITSS) on SWI correlates with rCBV ratio and histopathological grade...
2017: Polish Journal of Radiology
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