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https://www.readbyqxmd.com/read/27933753/mass-cytometry-of-follicular-lymphoma-tumors-reveals-intrinsic-heterogeneity-in-proteins-including-hla-dr-and-a-deficit-in-non-malignant-plasmablast-and-germinal-center-b-cell-populations
#1
Cara Ellen Wogsland, Allison Rae Greenplate, Arne Kolstad, June Helen Myklebust, Jonathan Michael Irish, Kanutte Huse
BACKGROUND: Follicular lymphoma (FL) is an indolent non-Hodgkin lymphoma that has a risk of transformation to more aggressive lymphoma. Relatively little is known about the non-malignant B-cell and T-cell subset composition within the tumor microenvironment and whether altered phenotypes are associated with patterns of lymphoma B-cell heterogeneity. METHODS: Two mass cytometry (CyTOF) panels were designed to immunophenotype B and T cells in FL tumors. Populations of malignant B cells, non-malignant B cells, and T cells from each FL tumor were identified and their phenotypes compared to B and T cells from healthy human tonsillar tissue...
December 9, 2016: Cytometry. Part B, Clinical Cytometry
https://www.readbyqxmd.com/read/27933750/comparing-glucose-and-hemoglobin-a1c-diagnostic-tests-among-a-high-metabolic-risk-hispanic-population
#2
Mónica A Vega-Vázquez, Margarita Ramirez-Vick, Francisco J Muñoz-Torres, Loida A González-Rodríguez, Kaumudi Joshipura
AIMS: Compare HbA1c diagnostic tests for pre-diabetes and diabetes with plasma glucose criteria (PGC), and compare the metabolic profiles of people classified by HbA1c versus by glucose levels. METHODS: Participants were recruited for the San Juan Overweight Adults Longitudinal Study (SOALS). Were primarily Hispanic (98%), without previously diagnosed diabetes, and aged 40-65 years. Participants classified as normal glycemic, pre-diabetes or diabetes based on baseline HbA1c and PGC, were compared with respect to baseline cardiometabolic factors...
December 9, 2016: Diabetes/metabolism Research and Reviews
https://www.readbyqxmd.com/read/27933748/exploring-glucocorticoid-receptor-agonists-mechanism-of-action-through-mass-cytometry-and-radial-visualizations
#3
Yann Abraham, Bertran Gerrits, Marie-Gabrielle Ludwig, Michael Rebhan, Caroline Gubser Keller
Recent advances in combining flow cytometry and mass spectrometry have led to the development of mass cytometry, allowing for the interrogation of complex cell populations on an unprecedented scale. The volumes and high dimensionality of mass cytometry data pose significant challenges in terms of analysis and visualization. We implement a method called Radviz (1-3), where multidimensional single cell data can be visualized as a projection that maintains the original dimensions and data complexity whilst facilitating analysis and visualization...
December 9, 2016: Cytometry. Part B, Clinical Cytometry
https://www.readbyqxmd.com/read/27933726/inheritance-of-evolved-clethodim-resistance-in-lolium-rigidum-populations-from-australia
#4
Rupinder Kaur Saini, Jenna Malone, Gurjeet Gill, Christopher Preston
BACKGROUND: In Australia, the extensive use of clethodim for the control of Lolium rigidum has resulted in the evolution of many clethodim-resistant L.rigidum populations. Five clethodim-resistant populations of L. rigidum were analysed for the inheritance of clethodim resistance. RESULTS: Reciprocal crosses were made between resistant (R) and susceptible (S) populations. Within crosses, dose responses of reciprocal F1 families of all populations, except A61 were similar each other, indicating clethodim resistance in these populations is encoded on the nuclear genome...
December 8, 2016: Pest Management Science
https://www.readbyqxmd.com/read/27933718/constipation-in-older-people-a-consensus-statement
#5
Anton Emmanuel, Francesco Mattace-Raso, Maria Cristina Neri, Karl-Uwe Petersen, Enrique Rey, June Rogers
BACKGROUND AND AIMS: Chronic constipation is a serious medical condition that affects 30%-40% of people over 60 years old. Although not normally life threatening, constipation reduces quality of life by the same extent as diabetes and osteoarthritis. There are currently no Europe-wide guidelines for treating constipation in older people, although there is some country-level guidance for the general population. We have evaluated the existing guidance and best clinical practice to improve the care of older people with constipation...
December 9, 2016: International Journal of Clinical Practice
https://www.readbyqxmd.com/read/27933693/heart-transplantation-in-children-with-intellectual-disability-an-analysis-of-the-unos-database
#6
Alexander N Goel, Amit Iyengar, Kenneth Schowengerdt, Andrew C Fiore, Charles B Huddleston
Heart transplantation in children with intellectual disability (ID) is an issue of debate due to the shortage of available donor organs. We sought to perform the first large-scale retrospective cohort study describing the prevalence and outcomes of heart transplantation in this population. The United Network of Organ Sharing database was queried from 2008 to 2015 for pediatric patients (age <19 years) receiving first, isolated heart transplant. Recipients were divided into three subgroups: definite ID, probable ID, and no ID...
December 9, 2016: Pediatric Transplantation
https://www.readbyqxmd.com/read/27933686/risk-of-incident-mycobacterium-tuberculosis-infection-in-patients-with-inflammatory-bowel-disease-a-nationwide-population-based-study-in-south-korea
#7
S N Hong, H J Kim, K H Kim, S-J Han, I M Ahn, H S Ahn
BACKGROUND: The low incidence of Mycobacterium tuberculosis infection and lack of adequate controls have prevented researchers from estimating tuberculosis (TB) risk in inflammatory bowel disease (IBD) patients. AIM: To evaluate the risk of incident TB among IBD patients. METHODS: Using the 2011-2013 data of the South Korean National Health Insurance (NHI) system, we calculated the incidence rates (IRs), standardised incidence ratio (SIR) and number needed to screen (NNS) for incident TB in IBD patients compared to the general population in terms of subtype, age, gender and IBD medications...
January 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27933683/genetics-and-the-conservation-of-natural-populations-allozymes-to-genomes
#8
Fred W Allendorf
I consider how the study of genetic variation has influenced efforts to conserve natural populations over the last 50 years. Studies with allozymes in the 1970s provided the first estimates of the amount of genetic variation within and between natural populations at multiple loci. These early studies played an important role in developing plans to conserve species. The description of genetic variation in mitochondrial DNA in the early 1980s laid the foundation for the field of phylogeography, which provided a deeper look in time of the relationships and connectivity among populations...
December 9, 2016: Molecular Ecology
https://www.readbyqxmd.com/read/27933666/risk-of-stroke-and-recurrence-after-af-ablation-in-patients-with-an-initial-event-free-period-of-12-months
#9
Simon Kochhäuser, Pouria Alipour, Tanjah Haig-Carter, Kathleen Trought, Philip Hache, Yaariv Khaykin, Zaev Wulffhart, Alfredo Pantanomd, Bernice Tsang, David Birnie, Atul Verma
INTRODUCTION: Because of the unclear prognostic effects of ablation of atrial fibrillation (AF), oral anticoagulation (OAC) is often continued after ablation even in asymptomatic patients. We sought to determine the frequency of stroke and AF recurrence in patients on and off therapeutic OAC one year after a successful AF ablation. METHODS AND RESULTS: Patients that underwent AF ablation and were free of AF 12 months after ablation were selected from our AF database...
December 9, 2016: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/27933657/analysis-of-temozolomide-resistance-in-low-grade-gliomas-by-using-a-mechanistic-mathematical-model
#10
Edouard Ollier, Pauline Mazzocco, Damien Ricard, Gentian Kaloshi, Ahmed Idbaih, Agusti Alentorn, Dimitri Psimaras, Jérôme Honnorat, Jean-Yves Delattre, Emmanuel Grenier, François Ducray, Adeline Samson
Understanding how tumours develop resistance to chemotherapy is a major issue in oncology. When treated with temozolomide (TMZ), an oral alkylating chemotherapy drug, most low-grade gliomas (LGG) show an initial volume decrease but this effect is rarely long lasting. In addition, it has been suggested that TMZ may drive tumour progression in a subset of patients as a result of acquired resistance. Using longitudinal tumour size measurements from 121 patients, the aim of the present study was to develop a semi-mechanistic mathematical model to determine whether resistance of LGG to TMZ was more likely to result from primary and/or from chemotherapy-induced acquired resistance that may contribute to tumour progression...
December 9, 2016: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/27933656/change-in-trabecular-bone-score-tbs-with-antiresorptive-therapy-does-not-predict-fracture-in-women-the-manitoba-bmd-cohort
#11
William D Leslie, Sumit R Majumdar, Uzanne N Morin, Didier Hans, Lisa M Lix
Bone mineral density (BMD) and trabecular bone score (TBS), along with additional clinical risk factors, can be used to identify individuals at high fracture risk. Whether change in TBS in untreated or treated women independently affects fracture risk is unclear. Using the Manitoba (Canada) DXA Registry containing all BMD results for the population we identified 9044 women age >40 years with two consecutive DXA scans and who were not receiving osteoporosis treatment at baseline (baseline mean age 62 ± 10 years)...
December 8, 2016: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/27933636/primary-headaches-in-an-elderly-population-seeking-medical-care-for-cognitive-decline
#12
Michele Feleppa, Silvia Fucci, Marcelo E Bigal
OBJECTIVES: To assess the prevalence of specific headache disorders in a population older than 65 years seeking consultation due to memory problems or cognitive impairment. METHODS: We verified the occurrence of headache symptoms and the impact of headaches on daily life. Headaches were classified as per the International Classification of Headache Disorders, 2nd edition (ICHD-2). All patients were screened with the Mini-Mental State Examination (MMSE), followed by the Selective Reminding Test and neuroimaging...
December 9, 2016: Headache
https://www.readbyqxmd.com/read/27933593/inflammation-induced-cd69-kupffer-cell-feedback-inhibits-t-cell-proliferation-via-membrane-bound-tgf-%C3%AE-1
#13
Xiang Zhang, Zhengping Jiang, Yan Gu, Yanfang Liu, Xuetao Cao, Yanmei Han
Kupffer cells, tissue-resident macrophage lineage cell, are enriched in vertebrate liver. The mouse F4/80(+) Kupffer cells have been subclassified into two subpopulations according to their phenotype and function: CD68(+) subpopulation with potent reactive oxygen species (ROS) production and phagocytic capacities, and CD11b(+) subpopulation with a potent capacity to produce T helper 1 cytokines. In addition, CD11b(+) Kupffer cells/macrophages may be migrated from the bone marrow or spleen, especially in inflammatory conditions of the liver...
December 6, 2016: Science China. Life Sciences
https://www.readbyqxmd.com/read/27933579/oligomerization-and-chaperone-like-activity-of-drosophila-melanogaster-small-heat-shock-protein-dmhsp27-and-three-arginine-mutants-in-the-alpha-crystallin-domain
#14
Mohamed Taha Moutaoufik, Geneviève Morrow, Halim Maaroufi, Céline Férard, Stéphanie Finet, Robert M Tanguay
The small Hsp DmHsp27 from Drosophila melanogaster is one of the few small heat shock proteins (sHsps) found within the nucleus. We report that its dimerization is independent of disulfide bond formation and seems to rely on salt bridges. Unlike metazoan sHsps, DmHsp27 forms two populations of oligomers not in equilibrium. Mutations at highly conserved arginine residues in mammalian sHsps have been reported to be associated with protein conformational defects and intracellular aggregation. Independent mutation of three highly conserved arginines (R122, R131, and R135) to glycine in DmHsp27 results in only one population of higher molecular weight form...
December 8, 2016: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/27933566/fracture-incidence-rates-in-norwegian-children-the-troms%C3%A3-study-fit-futures
#15
Tore Christoffersen, Luai A Ahmed, Anne Winther, Ole Andreas Nilsen, Anne-Sofie Furberg, Guri Grimnes, Elaine Dennison, Jacqueline R Center, John A Eisman, Nina Emaus
: This study describes childhood fracture rates in Norway, a country known for high fracture rates in the adult population. Fracture rates correspond with other reports from Scandinavia, although with a slightly higher proportion in girls. Indications of increased vulnerability during stages of puberty require further exploration. INTRODUCTION: Fractures are common injuries during childhood. Incidence rates and patterns vary, but population-based data are scarce...
December 2016: Archives of Osteoporosis
https://www.readbyqxmd.com/read/27933545/the-collaborative-cross-resource-for-systems-genetics-research-of-infectious-diseases
#16
Paul L Maurizio, Martin T Ferris
An increasing body of evidence highlights the role of host genetic variation in driving susceptibility to severe disease following pathogen infection. In order to fully appreciate the importance of host genetics on infection susceptibility and resulting disease, genetically variable experimental model systems should be employed. These systems allow for the identification, characterization, and mechanistic dissection of genetic variants that cause differential disease responses. Herein we discuss application of the Collaborative Cross (CC) panel of recombinant inbred strains to study viral pathogenesis, focusing on practical considerations for experimental design, assessment and analysis of disease responses within the CC, as well as some of the resources developed for the CC...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27933544/dissection-of-host-susceptibility-to-bacterial-infections-and-its-toxins
#17
Aysar Nashef, Mahmoud Agbaria, Ariel Shusterman, Nicola Ivan Lorè, Alessandra Bragonzi, Ervin Wiess, Yael Houri-Haddad, Fuad A Iraqi
Infection is one of the leading causes of human mortality and morbidity. Exposure to microbial agents is obviously required. However, also non-microbial environmental and host factors play a key role in the onset, development and outcome of infectious disease, resulting in large of clinical variability between individuals in a population infected with the same microbe. Controlled and standardized investigations of the genetics of susceptibility to infectious disease are almost impossible to perform in humans whereas mouse models allow application of powerful genomic techniques to identify and validate causative genes underlying human diseases with complex etiologies...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27933541/social-interactions-and-indirect-genetic-effects-on-complex-juvenile-and-adult-traits
#18
David G Ashbrook, Reinmar Hager
Most animal species are social in one form or another, yet many studies in rodent model systems use either individually housed animals or ignore potential confounds caused by group housing. While such social interaction effects on developmental and behavioral traits are well established, the genetic basis of social interactions has not been researched in as much detail. Specifically, the effects of genetic variation in social partners on the phenotype of a focal individual have mostly been studied at the phenotypic level...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27933540/systems-genetics-of-obesity
#19
Gudrun A Brockmann, Danny Arends, Sebastian Heise, Ayca Dogan
Obesity is a complex trait, determined by many genes and influenced by environmental factors. Mapping genomic loci contributing to obesity helps to identify gene variants responsible for differences in the phenotype. However, measuring fat content alone is often not sufficient to identify the underlying gene or genes. Besides in-depth phenotyping, well-designed genetic populations and the combined analysis of data of different origins are necessary to detect one of several genetic determinants. Structured mouse populations and linking information from different experiments help to simplify the complexity in the search for direct genetic effects or factors that are hidden in the genome...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27933538/systems-genetics-of-liver-fibrosis
#20
Rabea A Hall, Frank Lammert
This systems genetics analysis comprises quantitative measurements of hepatic fibrogenesis in mouse models and mapping of quantitative traits in mouse genetic reference populations. It is part of a large mapping project of fibrogenic genes including the analyses of experimental crosses from different inbred mouse strains. Extensive quantitative trait loci (QTL) mapping of fibrosis phenotypes and liver expression profiling in combination with in silico mapping facilitated the identification of QTL regions and underlying candidate genes that confer fibrosis susceptibility also in humans...
2017: Methods in Molecular Biology
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