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https://www.readbyqxmd.com/read/29040465/the-fut2-secretor-variant-p-trp154ter-influences-serum-vitamin-b12-concentration-via-holo-haptocorrin-but-not-holo-transcobalamin-and-is-associated-with-haptocorrin-glycosylation
#1
Aneliya Velkova, Jennifer E L Diaz, Faith Pangilinan, Anne M Molloy, James L Mills, Barry Shane, Erica Sanchez, Conal Cunningham, Helen McNulty, Cheryl D Cropp, Joan E Bailey-Wilson, Alexander F Wilson, Lawrence C Brody
Vitamin B12 deficiency is common in older individuals. Circulating vitamin B12 concentration can be used to diagnose deficiency but this test has substantial false positive and false negative rates. We conducted genome-wide association studies (GWAS) in which we resolved total serum vitamin B12 into the fractions bound to transcobalamin and haptocorrin: two carrier proteins with very different biological properties. We replicated reported associations between total circulating vitamin B12 concentrations and a common null variant in FUT2...
October 12, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/29035947/cross-reactivity-of-hiv-vaccine-responses-and-the-microbiome
#2
Wilton B Williams, Qifeng Han, Barton F Haynes
PURPOSE OF REVIEW: A successful HIV-type 1 (HIV-1) vaccine will require immunogens that induce protective immune responses. However, recent studies suggest that the response to HIV-1 and perhaps other viruses may be altered by immune system exposure to intestinal microbiota-antigens. This review will discuss select aspects of these studies. RECENT FINDINGS: Naïve CD4 T and B cell repertoires can be imprinted by intestinal microbiota-antigens to respond to virus epitopes prior to virus infection...
October 14, 2017: Current Opinion in HIV and AIDS
https://www.readbyqxmd.com/read/29035539/three-fold-symmetric-selenium-donor-metallaboratranes-of-cobalt-and-nickel
#3
Stefan Holler, Michael Tüchler, Michaela C Roschger, Ferdinand Belaj, Luis F Veiros, Karl Kirchner, Nadia C Mösch-Zanetti
A novel selenium-containing pyridazinyl-based soft scorpionate ligand (KTnse) was synthesized. It reacts with CoCl2 and NiCl2, yielding the first metallaboratrane complexes with selenium in their donor positions. Further substitution with Ag(OTf) or NaN3 allows isolation of the respective triflate or azide complexes. Reaction with Ag(OTf) leads in the case of nickel to a dinuclear, dicationic complex with a short Ni-Ni distance, while cobalt gave a mononuclear cationic species. Substitution of the chloride by azide yields with both metals the respective azide complexes...
October 16, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/29035123/physiopathology-and-genetics-in-aspirin-exacerbated-respiratory-disease
#4
Gandhi F Pavón-Romero, Fernando Ramírez-Jiménez, Marco Alejandro Roldán-Alvarez, Luis M Terán, Ramcés Falfán-Valencia
INTRODUCTION: Aspirin-exacerbated respiratory disease (AERD) is a clinical entity characterized by hypersensitivity to aspirin leading to asthma and chronic rhinosinusitis with nasosinusal polyposis. The pathophysiology of the disease involves disruption at the level of arachidonic acid metabolism. Therefore, genetic association studies have been focused on the genes coding this pathway. As other mechanisms involved in the genesis of the disease were elucidated, the corresponding genes were also explored...
October 16, 2017: Experimental Lung Research
https://www.readbyqxmd.com/read/29035003/hepatitis-b-core-related-antigen-hbcrag-an-emerging-marker-for-chronic-hepatitis-b-virus-infection
#5
REVIEW
L-Y Mak, D K-H Wong, K-S Cheung, W-K Seto, C-L Lai, M-F Yuen
BACKGROUND: Chronic hepatitis B (CHB) cannot be completely eradicated due to the presence of covalently closed circular DNA (cccDNA) in the nuclei of infected hepatocytes. While quantification of intrahepatic cccDNA requires liver biopsies, serological markers can be non-invasive alternatives to reflect intrahepatic viral replicative activity. Recently, hepatitis B core-related antigen (HBcrAg) has been advocated as a novel serum marker for disease monitoring and prognostication of CHB...
October 16, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29034860/comparison-of-two-automated-instruments-for-epstein-barr-virus-serology-in-a-large-adult-hospital-and-implementation-of-an-epstein-barr-virus-nuclear-antigen-based-testing-algorithm
#6
Hilal Al Sidairi, Khalifa Binkhamis, Colleen Jackson, Catherine Roberts, Charles Heinstein, Jimmy MacDonald, Robert Needle, Todd F Hatchette, Jason J LeBlanc
Serology remains the mainstay for diagnosis of Epstein-Barr virus (EBV) infection. This study compared two automated platforms (BioPlex 2200 and Architect i2000SR) to test three EBV serological markers: viral capsid antigen (VCA) immunoglobulins of class M (IgM), VCA immunoglobulins of class G (IgG) and EBV nuclear antigen-1 (EBNA-1) IgG. Using sera from 65 patients at various stages of EBV disease, BioPlex demonstrated near-perfect agreement for all EBV markers compared to a consensus reference. The agreement for Architect was near-perfect for VCA IgG and EBNA-1 IgG, and substantial for VCA IgM despite five equivocal results...
October 16, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/29033918/dna-sequence-based-typing-of-the-cronobacter-genus-using-mlst-crispr-cas-array-and-capsular-profiling
#7
Pauline Ogrodzki, Stephen J Forsythe
The Cronobacter genus is composed of seven species, within which a number of pathovars have been described. The most notable infections by Cronobacter spp. are of infants through the consumption of contaminated infant formula. The description of the genus has greatly improved in recent years through DNA sequencing techniques, and this has led to a robust means of identification. However some species are highly clonal and this limits the ability to discriminate between unrelated strains by some methods of genotyping...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29033373/evaluating-the-causal-link-between-malaria-infection-and-endemic-burkitt-lymphoma-in-northern-uganda-a-mendelian-randomization-study
#8
Ismail D Legason, Ruth M Pfeiffer, Krizia-Ivana Udquim, Andrew W Bergen, Mateus H Gouveia, Samuel Kirimunda, Isaac Otim, Eric Karlins, Patrick Kerchan, Hadijah Nabalende, Ariunaa Bayanjargal, Benjamin Emmanuel, Paul Kagwa, Ambrose O Talisuna, Kishor Bhatia, Meredith Yeager, Robert J Biggar, Leona W Ayers, Steven J Reynolds, James J Goedert, Martin D Ogwang, Joseph F Fraumeni, Ludmila Prokunina-Olsson, Sam M Mbulaiteye
BACKGROUND: Plasmodium falciparum (Pf) malaria infection is suspected to cause endemic Burkitt Lymphoma (eBL), but the evidence remains unsettled. An inverse relationship between sickle cell trait (SCT) and eBL, which supports that between malaria and eBL, has been reported before, but in small studies with low power. We investigated this hypothesis in children in a population-based study in northern Uganda using Mendelian Randomization. METHODS: Malaria-related polymorphisms (SCT, IL10, IL1A, CD36, SEMA3C, and IFNAR1) were genotyped in 202 eBL cases and 624 controls enrolled during 2010-2015...
October 3, 2017: EBioMedicine
https://www.readbyqxmd.com/read/29033369/fecal-clostridium-symbiosum-for-noninvasive-detection-of-early-and-advanced-colorectal-cancer-test-and-validation-studies
#9
Yuan-Hong Xie, Qin-Yan Gao, Guo-Xiang Cai, Xiao-Ming Sun, Tian-Hui Zou, Hui-Min Chen, Si-Yi Yu, Yi-Wen Qiu, Wei-Qi Gu, Xiao-Yu Chen, Yun Cui, Danfeng Sun, Zhan-Ju Liu, San-Jun Cai, Jie Xu, Ying-Xuan Chen, Jing-Yuan Fang
OBJECTIVE: Current non-invasive early detection of colorectal cancer (CRC) requires improvement. We aimed to identified a fecal Clostridium symbiosum-based biomarker for early and advanced colorectal cancer detection. DESIGN: In the test stage, the relative abundance of Clostridium symbiosum (C. symbiosum) was measured by qPCR in 781 cases including 242 controls, 212 colorectal adenoma (CRA) patients, 109 early CRC (tumor restricted to the submucosa) patients, 218 advanced CRC patients...
October 4, 2017: EBioMedicine
https://www.readbyqxmd.com/read/29032733/car-t-cells-and-allogeneic-hematopoietic-stem-cell-transplantation-for-relapsed-refractory-b-cell-acute-lymphoblastic-leukemia
#10
Jun Liu, Xi Zhang, Jiang F Zhong, Cheng Zhang
Relapsed/refractory acute lymphoblastic leukemia (ALL) has a low remission rate after chemotherapy, a high relapse rate and poor long-term survival even when allogeneic hematopoietic stem cell transplantation (allo-HSCT) is performed. Chimeric antigen receptors redirected T cells (CAR-T cells) can enhance disease remission with a favorable outcome for relapsed/refractory ALL, though some cases quickly relapsed after CAR-T cell treatment. Thus, treatment with CAR-T cells followed by allo-HSCT may be the best way to treat relapsed/refractory ALL...
October 2017: Immunotherapy
https://www.readbyqxmd.com/read/29032573/protein-biomarkers-of-cell-proliferation-determine-prognosis-in-cases-of-equine-large-colon-volvulus
#11
C R Kucera, L W Stranahan, F Hughes, A T Blikslager, L M Gonzalez
BACKGROUND: Progenitor cells play critical roles in epithelial repair following ischaemic injury. Protein biomarkers have been used to identify intestinal progenitor cell subpopulations. This study aims to determine if a critical number of intestinal progenitor cells can predict tissue viability and survival to discharge of large colon volvulus (LCV) cases. OBJECTIVES: The objectives were to (1) identify intestinal progenitor cell subpopulations using biomarkers: proliferating cell nuclear antigen (PCNA), sex determining region Y box 9 (SOX9), phospho-histone H3 (PHH3), and Ki-67, (2) define cutoff values for critical numbers of positive cells and (3) determine if survival to discharge is associated with cutoff values...
October 15, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/29032274/assessment-of-impact-of-human-leukocyte-antigen-hla-type-on-outcomes-of-allogeneic-hematopoietic-stem-cell-transplant-for-chronic-lymphocytic-leukemia-cll
#12
Brian T Hill, Kwang Woo Ahn, Zhen-Huan Hu, Mahmoud Aljurf, Amer Beitinjaneh, Jean-Yves Cahn, Jan Cerny, Mohamed A Kharfan-Dabaja, Siddhartha Ganguly, Nilanjan Ghosh, Michael R Grunwald, Yoshihiro Inamoto, Tamila Kindwall-Keller, Taiga Nishihori, Richard F Olsson, Ayman Saad, Matthew Seftel, Sachiko Seo, Jeffrey Szer, Martin Tallman, Celalettin Ustun, Peter H Wiernik, Richard T Maziarz, Matt Kalaycio, Edwin Alyea, Uday Popat, Ronald Sobecks, Wael Saber
Chronic lymphocytic leukemia (CLL) is a common hematologic malignancy with many highly effective therapies. Chemorefractory disease, often characterized by deletion of chromosome 17p, has historically been associated with very poor outcomes, leading to the application of allogeneic hematopoietic stem cell transplant (allo-HCT) for medically fit patients. Although the use of allo-HCT has reduced since the introduction of novel targeted therapy for the treatment of CLL, there remains significant interest in understanding factors that may influence the efficacy of allo-HCT as it represents the only known curative treatment for CLL...
October 12, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29032173/the-reduced-osteogenic-potential-of-nf1-deficient-osteoprogenitors-is-egfr-independent
#13
S E Tahaei, G Couasnay, Y Ma, N Paria, J Gu, B F Lemoine, X Wang, J J Rios, F Elefteriou
Neurofibromatosis type 1 (NF1) is a common genetic disorder caused by mutations in the NF1 gene. Recalcitrant bone healing following fracture (i.e. pseudarthrosis) is one of the most problematic skeletal complications associated with NF1. The etiology of this condition is still unclear; thus, pharmacological options for clinical management are limited. Multiple studies have shown the reduced osteogenic potential of Nf1-deficient osteoprogenitors. A recent transcriptome profiling investigation revealed that EREG and EGFR, encoding epiregulin and its receptor Epidermal Growth Factor Receptor 1, respectively, were among the top over-expressed genes in cells of the NF1 pseudarthrosis site...
October 11, 2017: Bone
https://www.readbyqxmd.com/read/29031576/acute-and-long-term-effects-of-trophic-exposure-to-silver-nanospheres-in-the-central-nervous-system-of-a-neotropical-fish-hoplias-intermedius
#14
T Klingelfus, J R Lirola, L F Oya Silva, G R Disner, M Vicentini, M J B Nadaline, J C Z Robles, L M Trein, C L Voigt, H C Silva de Assis, M Mela, D M Leme, M M Cestari
Nanotechnologies are at the center of societal interest, due to their broad spectrum of application in different industrial products. The current concern about nanomaterials (NMs) is the potential risks they carry for human health and the environment. Considering that NMs can reach bodies of water, there is a need for studying the toxic effects of NMs on aquatic organisms. Among the NMs' toxic effects on fish, the interactions between NMs and the nervous system are yet to be understood. For this reason, our goal was to assess the neurotoxicity of polyvinylpyrrolidone coated silver nanospheres [AgNS (PVP coated)] and compare their effects in relation to silver ions (Ag(+)) in carnivorous Hoplias intermedius fish after acute and subchronic trophic exposure through the analysis of morphological (retina), biochemical (brain) and genetic biomarkers (brain and blood)...
October 11, 2017: Neurotoxicology
https://www.readbyqxmd.com/read/29031042/humoral-and-cellular-immune-response-of-mice-challenged-with-yersinia-pestis-antigenic-preparations
#15
Elida A Leal, Josimar D Moreira, Fernanda F Nunes, Larissa R Souza, Janaina M Martins, Vicente P C Toledo, Alzira M P Almeida, Tania M P Guimarães
OBJECTIVES: The plague, which is an infectious disease caused by Yersinia pestis, still threatens many populations in several countries. The worldwide increase in human plague cases and the potential use of the bacteria as a biological weapon reinforce the need to study the immunity that is induced by potential vaccine candidates. To determine the immunogenicity of antigenic preparations based on the F1 protein and the total extract from Y. pestis, we assessed the role of these antigens in inducing an immune response...
October 11, 2017: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29030011/influence-of-pasteurella-multocida-toxin-on-the-differentiation-of-dendritic-cells-into-osteoclasts
#16
Sushmita Chakraborty, Bianca Kloos, Nina Roetz, Silke Schmidt, Tatjana Eigenbrod, Shigeki Kamitani, Katharina F Kubatzky
Dendritic cells (DC) are antigen-presenting cells that connect the innate and adaptive immune system to ensure an efficient immune response during the course of an infection. Recently, DC came into the spotlight as a potential source of osteoclast progenitors, especially under (auto)inflammatory conditions. The virulence factor Pasteurella multocida Toxin (PMT) causes atrophic rhinitis in pigs, a disease characterised by a severe reduction of nasal bone. Our group and others have shown the potential of PMT in mediating differentiation of monocytes/macrophages into bone-resorbing osteoclasts...
September 12, 2017: Immunobiology
https://www.readbyqxmd.com/read/29029813/innovative-therapy-monoclonal-antibodies-and-beyond
#17
M Di Nicola, L Apetoh, M Bellone, M P Colombo, G Dotti, S Ferrone, M Muscolini, J Hiscott, A Anichini, S M Pupa, F de Braud, M Del Vecchio
The seventh Edition of "Innovative Therapy, Monoclonal Antibodies and Beyond" Meeting took place in Milan, Italy, on January 27, 2017. The two sessions of the meeting were focused on: 1) Preclinical assays and novel biotargets; and 2) monoclonal antibodies, cell therapies and targeted molecules. Between these two sessions, a lecture entitled "HLA-antigens modulation and response to immune checkpoint inhibitor immunotherapy" was also presented. Despite the impressive successes in cancer immunotherapy in recent years, the response to immune based interventions occurs only in a minority of patients (∼20%)...
October 5, 2017: Cytokine & Growth Factor Reviews
https://www.readbyqxmd.com/read/29029260/an-adjuvanted-postfusion-f-protein-based-vaccine-did-not-prevent-respiratory-syncytial-virus-illness-in-older-adults
#18
Judith Falloon, Jing Yu, Mark T Esser, Tonya Villafana, Li Yu, Filip Dubovsky, Therese Takas, Myron J Levin, Ann R Falsey
Background: Respiratory syncytial virus (RSV) is an important cause of illness in older adults. This study assessed efficacy of a vaccine for prevention of RSV-associated acute respiratory illness (RSV-ARI), defined by specified symptoms with virologic confirmation. Methods: This phase 2b study evaluated RSV postfusion F protein (120 µg) with glucopyranosyl lipid adjuvant (5 µg) in 2% stable emulsion. Subjects aged ≥60 years were randomized 1:1 to vaccine or placebo (all received influenza vaccine)...
September 23, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29028099/the-diagnostic-value-of-determination-of-serum-golph3-associated-with-ca125-ca19-9-in-patients-with-ovarian-cancer
#19
H-Y Fan, D-M Duan, Y-F Liu
OBJECTIVE: To evaluate the value of three tumor markers serum Golgi phosphoprotein-3 (GOLPH3), cancer antigen 125 (CA125) and cancer antigen 19-9 (CA19.9) in the diagnosis and postoperative evaluation of ovarian cancer by detecting these three markers. PATIENTS AND METHODS: A total of 187 patients were studied and included in the ovarian cancer group, benign pelvic mass group, and the normal control group. The levels of serum Golgi phosphoprotein-3 (GOLPH3), cancer antigen 125 (CA125) and cancer antigen 199 (CA19...
September 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29026057/pathological-outcome-for-chinese-patients-with-low-risk-prostate-cancer-eligible-for-active-surveillance-and-undergoing-radical-prostatectomy-comparison-of-six-different-active-surveillance-protocols
#20
C F Tsang, J Hl Tsu, T Ct Lai, K W Wong, B Sh Ho, A Tl Ng, W K Ma, M K Yiu
INTRODUCTION: Active surveillance is one of the therapeutic options for the management of patients with low-risk prostate cancer. This study compared the performance of six different active surveillance protocols for prostate cancer in the Chinese population. METHODS: Patients who underwent radical prostatectomy for prostate cancer from January 1998 to December 2012 at a university teaching hospital in Hong Kong were reviewed. Six active surveillance protocols were applied to the cohort...
October 13, 2017: Hong Kong Medical Journal, Xianggang Yi Xue za Zhi
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