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https://www.readbyqxmd.com/read/28734272/glycosylation-patterns-of-selected-proteins-in-individual-serum-and-cerebrospinal-fluid-samples
#1
Isabella Karlsson, Lorena Ndreu, Alessandro Quaranta, Gunnar Thorsén
A method we previously developed has been applied to the determination of the glycosylation pattern of specific proteins in biological samples. Six proteins (alpha-1-antitrypsin, transferrin, haptoglobin, C1 inhibitor, alpha-1 acid glycoprotein, and immunoglobulin G) were studied in serum samples from five individuals and cerebrospinal fluid (CSF) samples from three individuals, to investigate the expected normal distribution of glycosylation patterns and to assess whether this methodology can be used to discriminate between samples from different individuals...
April 25, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28732079/lmp1-mediated-glycolysis-induces-myeloid-derived-suppressor-cell-expansion-in-nasopharyngeal-carcinoma
#2
Ting-Ting Cai, Shu-Biao Ye, Yi-Na Liu, Jia He, Qiu-Yan Chen, Hai-Qiang Mai, Chuan-Xia Zhang, Jun Cui, Xiao-Shi Zhang, Pierre Busson, Yi-Xin Zeng, Jiang Li
Myeloid-derived suppressor cells (MDSCs) are expanded in tumor microenvironments, including that of Epstein-Barr virus (EBV)-associated nasopharyngeal carcinoma (NPC). The link between MDSC expansion and EBV infection in NPC is unclear. Here, we show that EBV latent membrane protein 1 (LMP1) promotes MDSC expansion in the tumor microenvironment by promoting extra-mitochondrial glycolysis in malignant cells, which is a scenario for immune escape initially suggested by the frequent, concomitant detection of abundant LMP1, glucose transporter 1 (GLUT1) and CD33+ MDSCs in tumor sections...
July 21, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28731449/cerebrospinal-fluid-neurogranin-as-a-biomarker-of-neurodegenerative-diseases-a-cross-sectional-study
#3
Simone Lista, Nicola Toschi, Filippo Baldacci, Henrik Zetterberg, Kaj Blennow, Ingo Kilimann, Stefan J Teipel, Enrica Cavedo, Antonio Melo Dos Santos, Stéphane Epelbaum, Foudil Lamari, Bruno Dubois, Robert Nisticò, Roberto Floris, Francesco Garaci, Harald Hampel
We investigated cerebrospinal fluid (CSF) concentrations of the postsynaptic biomarker neurogranin at baseline in cognitively healthy controls (HC) compared to individuals with mild cognitive impairment (MCI), patients with Alzheimer's disease (AD) dementia, and patients with frontotemporal dementia (FTD). CSF neurogranin was quantified using an in-house immunoassay in a cross-sectional multicenter study of 108 participants [AD dementia (n = 35), FTD (n = 9), MCI (n = 41), cognitively HC (n = 23)]...
July 18, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28731403/safe-and-sustainable-the-extracranial-approach-toward-frontoethmoidal-meningoencephalocele-repair
#4
Paul I Heidekrueger, Myat Thu, Wolfgang Mühlbauer, Charlotte Holm-Mühlbauer, Philippe Schucht, Hans Anderl, Heinrich Schoeneich, Kyawzwa Aung, Mg Mg Ag, Ag Thu Soe Myint, Sabrina Juran, Thiha Aung, Denis Ehrl, Milomir Ninkovic, P Niclas Broer
OBJECTIVE Although rare, frontoethmoidal meningoencephaloceles continue to pose a challenge to neurosurgeons and plastic reconstructive surgeons. Especially when faced with limited infrastructure and resources, establishing reliable and safe surgical techniques is of paramount importance. The authors present a case series in order to evaluate a previously proposed concise approach for meningoencephalocele repair, with a focus on sustainability of internationally driven surgical efforts. METHODS Between 2001 and 2016, a total of 246 patients with frontoethmoidal meningoencephaloceles were treated using a 1-stage extracranial approach by a single surgeon in the Department of Neurosurgery of the Yangon General Hospital in Yangon, Myanmar, initially assisted by European surgeons...
July 21, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28731400/letter-to-the-editor-expression-of-tissue-pro-renin-receptor-and-concentrations-of-its-soluble-form-in-csf-in-adult-diffuse-gliomas
#5
Vladislav Pavlov, Pascale Varlet, Fabrice Chretien, Geneviève Nguyen, Johan Pallud
No abstract text is available yet for this article.
July 21, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28731396/contralateral-posterior-interhemispheric-approach-to-deep-medial-parietooccipital-vascular-malformations-surgical-technique-and-results
#6
Jan-Karl Burkhardt, Ethan A Winkler, Michael T Lawton
OBJECTIVE Deep medial parietooccipital arteriovenous malformations (AVMs) and cerebral cavernous malformations (CCMs) are traditionally resected through an ipsilateral posterior interhemispheric approach (IPIA), which creates a deep, perpendicular perspective with limited access to the lateral margins of the lesion. The contralateral posterior interhemispheric approach (CPIA) flips the positioning, with the midline positioned horizontally for retraction due to gravity, but with the AVM on the upper side and the approach from the contralateral, lower side...
July 21, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28731395/nasoseptal-flap-necrosis-a-rare-complication-of-endoscopic-endonasal-surgery
#7
Joseph D Chabot, Chirag R Patel, Marion A Hughes, Eric W Wang, Carl H Snyderman, Paul A Gardner, Juan C Fernandez-Miranda
OBJECTIVE The vascularized nasoseptal flap (NSF) has become the workhorse for skull base reconstruction during endoscopic endonasal surgery (EES) of the ventral skull base. Although infrequently reported, as with any vascularized flap the NSF may undergo ischemic necrosis and become a nidus for infection. The University of Pittsburgh Medical Center's experience with NSF was reviewed to determine the incidence of necrotic NSF in patients following EES and describe the clinical presentation, imaging characteristics, and risk factors associated with this complication...
July 21, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28730535/the-recombead-borrelia-antibody-index-cxcl13-and-total-igm-index-for-laboratory-diagnosis-of-lyme-neuroborreliosis-in-children
#8
B H Skogman, M Lager, A J Henningsson, I Tjernberg
For laboratory diagnostics of Lyme neuroborreliosis (LNB), the recomBead Borrelia antibody index (AI) assay has shown promising results in a mixed age population, but has not previously been evaluated with specific focus on paediatric patients. The aim of the study was to evaluate the recomBead Borrelia AI assay in cerebrospinal fluid (CSF) for the laboratory diagnosis of LNB in children. We also wanted to explore whether early markers, such as CXCL13 in CSF and/or total IgM index could be useful as complementary diagnostic tools...
July 20, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28729294/characteristics-of-csf-velocity-time-profile-in-posttraumatic-syringomyelia
#9
J Yeo, S Cheng, S Hemley, B B Lee, M Stoodley, L Bilston
BACKGROUND AND PURPOSE: The development of syringomyelia has been associated with changes in CSF flow dynamics in the spinal subarachnoid space. However, differences in CSF flow velocity between patients with posttraumatic syringomyelia and healthy participants remains unclear. The aim of this work was to define differences in CSF flow above and below a syrinx in participants with posttraumatic syringomyelia and compare the CSF flow with that in healthy controls. MATERIALS AND METHODS: Six participants with posttraumatic syringomyelia were recruited for this study...
July 20, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28729061/biomarkers-for-alzheimer-disease-classical-and-novel-candidates-review
#10
REVIEW
Nadia El Kadmiri, Nadia Said, Ilham Slassi, Bouchra El Moutawakil, Sellama Nadifi
The biomarkers may be useful for predictive diagnosis of Alzheimer's disease (AD). The current challenge is to diagnose it in its preclinical phase. The combination of cerebrospinal fluid (CSF) biomarkers and imaging has been investigated extensively for a number of years. It can provide an increased diagnostic accuracy. This review discusses the contribution of classical biomarkers to predict AD and highlightsnovel candidates identified as potential markers for AD. We referred to the electronic databases PubMed/Medline and Web of Science to search for articles that were published until February 2016...
July 17, 2017: Neuroscience
https://www.readbyqxmd.com/read/28728117/alzheimer-s-disease-markers-in-the-aged-sheep-ovis-aries
#11
Suzanne J Reid, Natasha E Mckean, Kristen Henty, Erik Portelius, Kaj Blennow, Skye R Rudiger, C Simon Bawden, Renee R Handley, Paul J Verma, Richard L M Faull, Henry J Waldvogel, Henrik Zetterberg, Russell G Snell
This study reports the identification and characterization of markers of Alzheimer's disease (AD) in aged sheep (Ovis aries) as a preliminary step toward making a genetically modified large animal model of AD. Importantly, the sequences of key proteins involved in AD pathogenesis are highly conserved between sheep and human. The processing of the amyloid-β (Aβ) protein is conserved between sheep and human, and sheep Aβ1-42/Aβ1-40 ratios in cerebrospinal fluid (CSF) are also very similar to human. In addition, total tau and neurofilament light levels in CSF are comparable with those found in human...
June 24, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28727817/immunogenicity-of-a-novel-clade-b-hiv-1-vaccine-combination-results-of-phase-1-randomized-placebo-controlled-trial-of-an-hiv-1-gm-csf-expressing-dna-prime-with-a-modified-vaccinia-ankara-vaccine-boost-in-healthy-hiv-1-uninfected-adults
#12
Susan P Buchbinder, Nicole A Grunenberg, Brittany J Sanchez, Kelly E Seaton, Guido Ferrari, M Anthony Moody, Nicole Frahm, David C Montefiori, Christine M Hay, Paul A Goepfert, Lindsey R Baden, Harriet L Robinson, Xuesong Yu, Peter B Gilbert, M Juliana McElrath, Yunda Huang, Georgia D Tomaras
BACKGROUND: A phase 1 trial of a clade B HIV vaccine in HIV-uninfected adults evaluated the safety and immunogenicity of a DNA prime co-expressing GM-CSF (Dg) followed by different numbers and intervals of modified vaccinia Ankara Boosts (M). Both vaccines produce virus-like particles presenting membrane-bound Env. METHODS: Four US sites randomized 48 participants to receiving 1/10th the DNA dose as DgDgMMM given at 0, 2, 4, 6 and 8 months, or full dose DgDgM_M or DgDgMM_M regimens, given at 0, 2, 4, and 8 months, and 0, 2, 4, 6, and 10 months, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28727770/cerebrospinal-fluid-humoral-immunity-in-the-differential-diagnosis-of-multiple-sclerosis
#13
Evanthia Bernitsas, Omar Khan, Sara Razmjou, Alexandros Tselis, Fen Bao, Christina Caon, Scott Millis, Navid Seraji-Bozorgzad
BACKGROUND: The diagnostic accuracy of cerebrospinal fluid oligoclonal bands (CSF-OCB) detected by isoelectric focusing (IEF) in patients with multiple sclerosis (MS) was evaluated in our study. METHODS: Three hundred and twenty-one patients with MS and other central nervous system (CNS) immune mediated disorders were assessed (CIMD). Cerebrospinal fluid and matched serum samples were examined for the presence of OCB by IEF-IB (isoelectric focusing with immunoblotting)...
2017: PloS One
https://www.readbyqxmd.com/read/28727710/management-of-symptomatic-tarlov-cysts-a-retrospective-observational-study
#14
Wei Jiang, Zhenming Hu, Jie Hao
BACKGROUND: Symptomatic Tarlov cysts are a common cause of chronic pain. Many methods have been reported to treat this disease, with variable results. Most previous reports concerning the treatment methods of symptomatic Tarlov cysts were either sporadic case reports or series of limited cases. OBJECTIVE: This study aimed to further optimize the management for patients with symptomatic Tarlov cysts (TCs) by analyzing the results of 82 patients who were treated with different strategies...
July 2017: Pain Physician
https://www.readbyqxmd.com/read/28726587/repair-of-tympanic-membrane-perforations-with-customized-bioprinted-ear-grafts-using-chinchilla-models
#15
Che-Ying Kuo, Emmanuel Wilson, Andrew Fuson, Nidhi Gandhi, Reza Monfaredi, Audrey Jenkins, Maria Romero, Marco Santoro, John P Fisher, Kevin Cleary, Brian Reilly
The goal of this work is to develop an innovative method that combines bioprinting and endoscopic imaging to repair tympanic membrane perforations (TMPs). TMPs are a serious health issue because they can lead to both conductive hearing loss and repeated otitis media. TMPs occur in 3 to 5% of cases after ear tube placement as well as in cases of acute otitis media (the second most common infection in pediatrics), chronic otitis media with or without cholesteatoma, or as a result of barotrauma to the ear. About 55,000 tympanoplasties, the surgery performed to reconstruct TMPs, are performed every year and the commonly used cartilage grafting technique has a success rate between 43% to 100%...
July 20, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28726050/a-single-center-study-a%C3%AE-42-p-tau181-csf-ratio-to-discriminate-ad-from-ftd-in-clinical-setting
#16
Andrea Vergallo, Cecilia Carlesi, Cristina Pagni, Filippo Sean Giorgi, Filippo Baldacci, Lucia Petrozzi, Roberto Ceravolo, Gloria Tognoni, Gabriele Siciliano, Ubaldo Bonuccelli
Abnormal levels of beta amyloid (Aβ42) and tau protein concentrations in the cerebral spinal fluid (CSF) have been largely described in Alzheimer's disease (AD). Thus, CSF analysis of these biomarkers has been incorporated in recent AD diagnostic criteria, and it is increasingly performed for neurodegenerative dementia diagnostic workout in clinical setting. Nevertheless, the precise biomarkers CSF features in neurodegenerative dementia, either AD or Frontotemporal dementia (FTD), are still not fully clear today...
July 19, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28725210/multicenter-analytical-validation-of-a%C3%AE-40-immunoassays
#17
Linda J C van Waalwijk van Doorn, Luka Kulic, Marleen J A Koel-Simmelink, H Bea Kuiperij, Alexandra A M Versleijen, Hanne Struyfs, Harry A M Twaalfhoven, Anthony Fourier, Sebastiaan Engelborghs, Armand Perret-Liaudet, Sylvain Lehmann, Marcel M Verbeek, Eugeen J M Vanmechelen, Charlotte E Teunissen
BACKGROUND: Before implementation in clinical practice, biomarker assays need to be thoroughly analytically validated. There is currently a strong interest in implementation of the ratio of amyloid-β peptide 1-42 and 1-40 (Aβ42/Aβ40) in clinical routine. Therefore, in this study, we compared the analytical performance of six assays detecting Aβ40 in cerebrospinal fluid (CSF) in six laboratories according to a recently standard operating procedure (SOP) developed for implementation of ELISA assays for clinical routine...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28724967/a-balancing-act-rna-binding-protein-hur-ttp-axis-in-endometriosis-patients
#18
Kasra Khalaj, Soo Hyun Ahn, Mallikarjun Bidarimath, Yasmin Nasirzadeh, Sukhbir S Singh, Asgerally T Fazleabas, Steven L Young, Bruce A Lessey, Madhuri Koti, Chandrakant Tayade
Endometriosis, a major reproductive pathology affecting 8-10% of women is characterized by chronic inflammation and immune dysfunction. Human antigen R (HuR) and Tristetraprolin (TTP) are RNA binding proteins that competitively bind to cytokines involved in inflammation including: tumor necrosis factor alpha (TNF-α), granulocyte macrophage colony stimulating factor (GM-CSF), interleukin 6 (IL-6) among others, and stabilize and destabilize them, respectively. The aim of this study was to examine RNA binding protein (RNABP) HuR/TTP axis in endometriosis patients compared to menstrual stage matched healthy fertile controls in hopes of better understanding their contribution to the pathogenesis of endometriosis...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724665/the-c-1085a-g-genetic-variant-of-csf1r-gene-regulates-tumor-immunity-by-altering-the-proliferation-polarization-and-function-of-macrophages
#19
Yu-Min Yeh, Shan-Ju Hsu, Peng-Chan Lin, Keng-Fu Hsu, Pei-Ying Wu, Wu-Chou Su, Jang-Yang Chang, Meng-Ru Shen
Purpose: <p>Targeting tumor-associated macrophages with CSF-1R inhibition reveals a strategy for cancer therapy. Here, we studied the impact of CSF1R germline genetic variant on CSF-1R signaling and the susceptibility to CSF-1R inhibitors.</p> <p>Experimental designs: </p> <p>CSF1R germline genetic variants were studied in 140 cancer patients. CSF-1R phosphorylation, endocytosis and macrophage polarization were measured as the response to CSF-1 stimulation. Tumor-associated macrophages in surgical specimens and sensitivity to CSF-1R inhibitors were used to determine macrophage function...
July 19, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28724384/deficiency-of-pi3-kinase-catalytic-isoforms-p110%C3%AE-and-p110%C3%AE-in-mice-enhances-the-il-17-g-csf-axis-and-induces-neutrophilia
#20
Kirsten Bucher, Fee Schmitt, Benedikt Mothes, Carolin Blumendeller, Daniel Schäll, Roland Piekorz, Emilio Hirsch, Bernd Nürnberg, Sandra Beer-Hammer
BACKGROUND: Phosphoinositide 3-kinase γ (PI3Kγ) and PI3Kδ are second messenger-generating enzymes with key roles in proliferation, differentiation, survival, and function of leukocytes. Deficiency of the catalytic subunits p110γ and p110δ of PI3Kγ and PI3Kδ in p110γ/δ(-/-) mice leads to defective B- and T-cell homeostasis. Here we examined the role of p110γ and p110δ in the homeostasis of neutrophils by analyzing p110γ(-/-), p110δ(-/-) and p110γ/δ(-/-) mice. METHODS: Neutrophils and T cells in leukocyte suspensions from the bone marrow (BM), blood, spleen and lung were analyzed by flow cytometry...
July 19, 2017: Cell Communication and Signaling: CCS
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