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https://www.readbyqxmd.com/read/28645128/-headache-news
#1
Hans-Christoph Diener, Charly Gaul, Dagny Holle-Lee, Lazaros Lazaridis, Steffen Nägel, Mark Obermann
A review of the latest and most relevant information on different disorders of head and facial pain is presented. News from epidemiologic studies regarding the relationship between migraine and patent foramen ovale, the cardiovascular risk in migraine, and migraine behavior during menopause, and the development of white matter lesions or migraine genetics are presented. Regarding pathophysiology there are very recent insights regarding the role of the hypothalamus during prodromal phase and the interplay of brain-stem and hypothalamus during the attack...
June 2017: Fortschritte der Neurologie-Psychiatrie
https://www.readbyqxmd.com/read/28645115/a-comprehensive-review-of-heregulins-her3-and-her4-as-potential-therapeutic-targets-in-cancer
#2
REVIEW
Jose Mauricio Mota, Katharine Ann Collier, Ricardo Lima Barros Costa, Timothy Taxter, Aparna Kalyan, Caio A Leite, Young Kwang Chae, Francis J Giles, Benedito A Carneiro
Heregulins (HRGs) bind to the receptors HER3 or HER4, induce receptor dimerization, and trigger downstream signaling that leads to tumor progression and resistance to targeted therapies. Increased expression of HRGs has been associated with worse clinical prognosis; therefore, attempts to block HRG-dependent tumor growth have been pursued. This manuscript summarizes the function and signaling of HRGs and review the preclinical evidence of its involvement in carcinogenesis, prognosis, and treatment resistance in several malignancies such as colorectal cancer, non-small cell lung cancer, ovarian cancer, and breast cancer...
June 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28644885/organic-anion-transporting-polypeptide-1b3-can-form-homo-and-hetero-oligomers
#3
Yuchen Zhang, Kelli H Boxberger, Bruno Hagenbuch
OATP1B3 is a 12 transmembrane domain protein expressed at the basolateral membrane of human hepatocytes where it mediates the uptake of numerous drugs and endogenous compounds. Previous western blot results suggest the formation of OATP1B3 multimers. In order to better understand the function of OATP1B3 under normal physiological conditions, we investigated its oligomerization status. We transiently transfected OATP1B3 with a C-terminal His-, FLAG- or HA-tag in HEK293 cells and used co-immunoprecipitation and a Proximity Ligation Assay to detect interactions between the different constructs...
2017: PloS One
https://www.readbyqxmd.com/read/28644774/cd33-splicing-polymorphism-determines-gemtuzumab-ozogamicin-response-in-de-novo-acute-myeloid-leukemia-report-from-randomized-phase-iii-children-s-oncology-group-trial-aaml0531
#4
Jatinder K Lamba, Lata Chauhan, Miyoung Shin, Michael R Loken, Jessica A Pollard, Yi-Cheng Wang, Rhonda E Ries, Richard Aplenc, Betsy A Hirsch, Susana C Raimondi, Roland B Walter, Irwin D Bernstein, Alan S Gamis, Todd A Alonzo, Soheil Meshinchi
Purpose Gemtuzumab ozogamicin (GO), a CD33-targeted immunoconjugate, is a re-emerging therapy for acute myeloid leukemia (AML). CD33 single nucleotide polymorphism rs12459419 C>T in the splice enhancer region regulates the expression of an alternatively spliced CD33 isoform lacking exon2 (D2-CD33), thus eliminating the CD33 IgV domain, which is the antibody-binding site for GO, as well as diagnostic immunophenotypic panels. We aimed to determine the impact of the genotype of this splicing polymorphism in patients with AML treated with GO-containing chemotherapy...
June 23, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28644752/expression-and-purification-of-swine-rag2-in-e-coli-for-production-of-porcine-rag2-polyclonal-antibodies
#5
Yu-Bei Jin, Wen-Tao Yang, Ke-Yan Huang, Hong-Liang Chen, Seria-Masole Shonyela, Jing Liu, Qiong Liu, Bo Feng, You Zhou, Shu-Li Zhi, Yan-Long Jiang, Jian-Zhong Wang, Hai-Bin Huang, Chun-Wei Shi, Gui-Lian Yang, Chun-Feng Wang
Recombination activating gene 2 (RAG2) is necessary for immature B cell differentiation. Antibodies to human and rabbit RAG2 are currently commercially available, but antibodies to swine RAG remain unavailable to date. In this study, the swine RAG2 genes sequence was synthesized and then cloned into a pET-28a vector. The recombinant fusion protein was successfully expressed in E. coli, purified through nickel column chromatography, and further digested with Tobacco Etch Virus protease. The cleaved protein was purified by molecular-exclusion chromatography and named pRAG2...
June 23, 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28644688/intraosseous-administration-of-antidotes-a-systematic-review
#6
Audrée Elliott, Pierre-André Dubé, Amélie Cossette-Côté, Laura Patakfalvi, Eric Villeneuve, Martin Morris, Sophie Gosselin
CONTEXT: Intraosseous (IO) access is an established route of administration in resuscitation situations. Patients with serious poisoning presenting to the emergency department may require urgent antidote therapy. However, intravenous (IV) access is not always readily available. OBJECTIVE: This study reviews the current evidence for IO administration of antidotes that could be used in poisoning. The primary outcome was mortality as a surrogate of efficacy. Secondary outcomes included hemodynamic variables, electrocardiographic variables, neurological status, pharmacokinetics outcomes, and adverse effects as defined by each article...
June 23, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28644609/galnac-tyrosine-is-a-ligand-of-plant-lectins-antibodies-and-human-and-murine-macrophage-galactose-type-lectins
#7
Ruslan Gibadullin, David Wayne Farnsworth, Joseph J Barchi, Jeffrey C Gildersleeve
In 2011, a new type of protein O-glycosylation was discovered in which N-acetylgalactosamine is attached to the side chain of tyrosine (GalNAc-Tyr). While present on dozens of proteins, the biological roles of GalNAc-Tyr are unknown. To gain insight into this new type of modification, we synthesized a group of GalNAc-Tyr glycopeptides, constructed microarrays, and evaluated potential recognition of GalNAc-Tyr by a series of glycan-binding proteins. Through a series of >150 microarray experiments, we assessed binding properties of a variety of plant lectins, monoclonal antibodies, and endogenous lectins...
June 23, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28644480/a-polymer-nanoparticle-with-engineered-affinity-for-a-vascular-endothelial-growth-factor-vegf165
#8
Hiroyuki Koide, Keiichi Yoshimatsu, Yu Hoshino, Shih-Hui Lee, Ai Okajima, Saki Ariizumi, Yudai Narita, Yusuke Yonamine, Adam C Weisman, Yuri Nishimura, Naoto Oku, Yoshiko Miura, Kenneth J Shea
Protein affinity reagents are widely used in basic research, diagnostics and separations and for clinical applications, the most common of which are antibodies. However, they often suffer from high cost, and difficulties in their development, production and storage. Here we show that a synthetic polymer nanoparticle (NP) can be engineered to have many of the functions of a protein affinity reagent. Polymer NPs with nM affinity to a key vascular endothelial growth factor (VEGF165) inhibit binding of the signalling protein to its receptor VEGFR-2, preventing receptor phosphorylation and downstream VEGF165-dependent endothelial cell migration and invasion into the extracellular matrix...
July 2017: Nature Chemistry
https://www.readbyqxmd.com/read/28644352/elevated-serum-tissue-transglutaminase-antibodies-in-children-with-eosinophilic-esophagitis
#9
Anna K Le Fevre, Marjorie M Walker, Amir Hadjiashrafy, Rani Bhatia, Joerg Mattes, Nicholas J Talley, Scott Nightingale
OBJECTIVES: This study compared the clinical and histopathological characteristics of children with eosinophilic esophagitis (EoE) and elevated anti-transglutaminase (TTG Ab) with those with EoE and normal TTG Ab titres. METHODS: Single-center chart and blinded histopathological review of patients diagnosed with EoE for a 4-year period, who had esophageal and duodenal biopsies taken at time of endoscopy, and TTG Ab measured within 6 months of biopsy. Patients with histology-proven CD were excluded...
July 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28644258/multifocal-motor-neuropathy-associated-with-infliximab-a-case-report-and-a-literature-review
#10
Ayse O Bayrak, Hasan Ulusoy, Necdet Bolat, Baki Doğan, Taner Ozbenli
Multifocal motor neuropathy with conduction block (MMN-CB) is purely a motor neuropathy with progressive weakness that is characteristically caused by conduction blocks. Association with antiganglioside antibodies and a good response to immunomodulating therapies suggest an autoimmune etiology. In rare cases, MMN-CB has been reported as an adverse effect of infliximab, a tumor necrosis factor-α blocker. We present a case of MMN-CB due to infliximab in a 45-year-old man with psoriatic arthritis who was exposed to the drug for 2 years because of a delayed diagnosis...
July 2017: Neurologist
https://www.readbyqxmd.com/read/28644256/cluster-like-headache-secondary-to-focal-cervical-myelitis
#11
Dong-Eun Kim, Ji-Yun Park, Hyeonuk Ha, Geum-Jin Yoon, Bang-Hoon Cho, Seung-Han Lee
BACKGROUND: Cluster headache (CH) is characterized by attacks of severe periorbital pain associated with autonomic symptoms. As with other forms of primary headache, structural lesions should be excluded, particularly if the headache presents with an atypical pattern. CASE: We report a 41-year-old woman who had no previous history of primary headache and showed a poor response to medication for CH. The patient was finally diagnosed as secondary headache with CH feature due to focal myelitis at the cervical level of the spinal cord...
July 2017: Neurologist
https://www.readbyqxmd.com/read/28644255/periodic-paralysis-and-encephalopathy-as-initial-manifestations-of-graves-disease-case-report-and-review-of-the-literature
#12
Theocharis Tsironis, Athanasios Tychalas, Dimitrios Kiourtidis, Jannis Kountouras, Georgia Xiromerisiou, Jobst Rudolf, Georgia Deretzi
BACKGROUND: Thyrotoxic periodic paralysis (TPP) is an uncommon complication of Graves' disease, characterized by the triad of acute hypokalemia without total body potassium deficit, episodic muscle paralysis, and thyrotoxicosis. Graves' encephalopathy is an extremely rare form of encephalopathy associated with autoimmune thyroid disease (EAATD), characterized by neuropsychiatric symptoms, increased antithyroid antibodies and cerebrospinal fluid protein concentration, nonspecific electroencephalogram abnormalities, and cortico-responsiveness...
July 2017: Neurologist
https://www.readbyqxmd.com/read/28644254/sporadic-creutzfeldt-jakob-disease-with-unilateral-symptoms-in-the-setting-of-metastatic-renal-cell-carcinoma
#13
Kyle C Rossi, Christine M Stahl, Pengfei Zhang, John W Liang, Lara V Marcuse, Fred Lublin
INTRODUCTION: Although it is not rare for magnetic resonance imaging findings in Creutzfeldt-Jakob disease to be asymmetric, unilateral clinical syndromes are uncommonly reported and may confound diagnosis. In addition, neurological paraneoplastic syndromes are not common in renal cell carcinoma, though there are cases reported, often without an offending antibody isolated. CASE REPORT: A 66-year-old man was admitted with 1 month of left-sided numbness and "loss of control" of the left arm...
July 2017: Neurologist
https://www.readbyqxmd.com/read/28644160/calcitonin-gene-related-peptide-targeted-therapies-for-migraine-and-cluster-headache-a-review
#14
Nathaniel M Schuster, Alan M Rapoport
Calcitonin gene-related peptide (CGRP) is a signaling neuropeptide released from activated trigeminal sensory afferents in headache and facial pain disorders. There are a handful of CGRP-targeted therapies currently in phase 3 studies for migraine acute treatment or prevention. Currently, 4 monoclonal antibodies targeting either the CGRP ligand or receptor are being studied for migraine prevention: ALD403 (eptinezumab), AMG 334 (erenumab), LY2951742 (galcanezumab), and TEV-48125 (fremanezumab). Meanwhile, 1 small-molecule CGRP receptor antagonist (ubrogepant, MK-1602) is currently in phase 3 studies for the acute treatment of migraine...
June 21, 2017: Clinical Neuropharmacology
https://www.readbyqxmd.com/read/28644129/anti-cd47-antibodies-induce-phagocytosis-of-live-malignant-b-cells-by-macrophages-via-the-fc-domain-resulting-in-cell-death-by-phagoptosis
#15
Lucy E Métayer, Anna Vilalta, G A Amos Burke, Guy C Brown
When expressed on the surface of cells, CD47 inhibits phagocytosis of these cells by phagocytes. Most human cancers overexpress CD47, and antibodies to CD47 have shown a remarkable ability to clear a range of cancers in animal models. However, the mechanism by which these antibodies cause cancer cell death is unclear. We find that CD47 is expressed on the surface of three B-cell lines from human malignancies: 697 (pre-B-ALL lymphoblasts), Ramos and DG-75 (both mature B-cells, Burkitt's lymphoma), and anti-CD47 antibodies greatly increase the phagocytosis of all three cell line by macrophages...
June 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28644104/the-association-between-blood-eosinophil-count-and-benralizumab-efficacy-for-patients-with-severe-uncontrolled-asthma-subanalyses-of-the-phase-iii-sirocco-and-calima-studies
#16
Mitchell Goldman, Ian Hirsch, James G Zangrilli, Paul Newbold, Xiao Xu
OBJECTIVE: Benralizumab, an anti-eosinophilic monoclonal antibody, in combination with high-dosage inhaled corticosteroids and long-acting β2-agonists (ICS/LABA) significantly reduced asthma exacerbations, improved lung function, and reduced symptoms for patients with severe, uncontrolled asthma with blood eosinophil counts ≥300 cells/µL in the Phase III SIROCCO and CALIMA studies. To understand the efficacy and safety of benralizumab for patients with eosinophil-driven disease with blood eosinophil counts lower than 300 cells/µL, we evaluated the effect of applying an eosinophil cutoff of ≥150 cells/µL...
June 23, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28643937/proinflammatory-effects-and-mechanisms-of-calprotectin-on-human-gingival-fibroblasts
#17
H Gao, J Hou, H Meng, X Zhang, Y Zheng, L Peng
BACKGROUND AND OBJECTIVE: Calprotectin (S100A8/A9) is a heterodimer of S100A8 and S100A9 and is associated with multiple inflammatory diseases, including Crohn's disease, rheumatoid arthritis and periodontitis. Levels of calprotectin are elevated in the gingival crevicular fluid of patients with periodontitis; however, the effects of calprotectin on human gingival fibroblasts (HGFs) remain unknown. This study investigated the proinflammatory activity of calprotectin on HGFs and the functional receptors and signaling pathways engaged by calprotectin...
June 23, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28643898/identification-of-cross-reactive-b-cell-epitopes-between-bos-d-9-0101-bos-taurus-and-gly-m-5-0101-glycine-max-by-epitope-mapping-maldi-tof-ms
#18
Ángela María Candreva, Mario Ferrer-Navarro, Silvia Bronsoms, Alejandra Quiroga, Renata Curciarello, Ana Cauerhff, Silvana Petruccelli, Guillermo Horacio Docena, Sebastián Alejandro Trejo
Exposure to cow's milk constitutes one of the most common causes of food allergy. In addition, exposure to soy proteins has become relevant in a restricted proportion of milk allergic pediatric patients treated with soy formulae as a dairy substitute, because of the cross-allergenicity described between soy and milk proteins . We have previously identified several cross-reactive allergens between milk and soy that may explain this intolerance. The purpose of the present work was to identify epitopes in the purified αS1-casein and the recombinant soy allergen Gly m 5...
June 23, 2017: Proteomics
https://www.readbyqxmd.com/read/28643867/transfusion-transmitted-cmv-infection%C3%A2-%C3%A2-current-knowledge-and-future-perspectives
#19
REVIEW
M Ziemann, T Thiele
Transmission of human cytomegalovirus (CMV) via transfusion (TT-CMV) may still occur and remains a challenge in the treatment of immunocompromised CMV-seronegative patients, e.g. after stem cell transplantation, and for low birthweight infants. Measures to reduce the risk of TT-CMV have been evaluated in clinical studies, including leucocyte depletion of cellular blood products and/or the selection of CMV-IgG-negative donations. Studies in large blood donor cohorts indicate that donations from newly CMV-IgG-positive donors should bear the highest risk for transmitting CMV infections because they contain the highest levels of CMV-DNA, and early CMV antibodies cannot neutralise CMV...
June 23, 2017: Transfusion Medicine
https://www.readbyqxmd.com/read/28643862/tumor-angiogenesis-revisited-regulators-and-clinical-implications
#20
REVIEW
Roberto Ronca, Mohammed Benkheil, Stefania Mitola, Sofie Struyf, Sandra Liekens
Since Judah Folkman hypothesized in 1971 that angiogenesis is required for solid tumor growth, numerous studies have been conducted to unravel the angiogenesis process, analyze its role in primary tumor growth, metastasis and angiogenic diseases, and to develop inhibitors of proangiogenic factors. These studies have led in 2004 to the approval of the first antiangiogenic agent (bevacizumab, a humanized antibody targeting vascular endothelial growth factor) for the treatment of patients with metastatic colorectal cancer...
June 23, 2017: Medicinal Research Reviews
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