110 research outputs found
Meta-analysis identifies seven susceptibility loci involved in the atopic March
Eczema often precedes the development of asthma in a disease course called the a 'atopic march'. To unravel the genes underlying this characteristic pattern of allergic disease, we conduct a multi-stage genome-wide association study on infantile eczema followed by childhood asthma in 12 populations including 2,428 cases and 17,034 controls. Here we report two novel loci specific for the combined eczema plus asthma phenotype, which are associated with allergic disease for the first time; rs9357733 located in EFHC1 on chromosome 6p12.3 (OR 1.27; P=2.1 Ă 10 a'8) and rs993226 between TMTC2 and SLC6A15 on chromosome 12q21.3 (OR 1.58; P=5.3 Ă 10 a'9). Additional susceptibility loci identified
Defeitos congĂȘnitos em bovinos da RegiĂŁo Central do Rio Grande do Sul
Foram revisados casos de defeitos congĂȘnitos (DCs) diagnosticados em bovinos no LaboratĂłrio de Patologia da Universidade Federal de Santa Maria em 1964-2010. Durante o perĂodo estudado, foram examinados materiais provenientes da necropsia de 7.132 bovinos e foram encontrados 31 bezerros (0,4%) com DCs, os quais foram classificados em 34 tipos e alocados nos sistemas orgĂąnicos primariamente afetados. Os DCs ocorriam isoladamente (19 [61,3%]) ou afetavam mĂșltiplos sĂtios anatĂŽmicos (15 [28,7%]) com frequĂȘncia semelhante em ambos os sexos. Como vĂĄrios terneiros mostraram mĂșltiplos DCs, um total de 53 DCs foi computado. Dos 53 DCs diagnosticados, 15 (28,3%) afetavam o sistema nervoso central (craniĂłsquise [4], abiotrofia cerebelar [2], degeneração esponjosa [2], hidrocefalia [2], meningocele [2], espinha bĂfida [1], hipoplasia cerebelar [1] e hipomielinogĂȘnese [1]); nove (17,0%) afetavam o sistema urogenital (agenesia testicular [1], agenesia vaginal [1], hipoplasia peniana [1], formação de cloaca [1], freemartinismo [1], hamartoma vascular de ovĂĄrio [1], hipoplasia renal [1], cistos renais [1] e Ășraco persistente [1]); oito DCs (15,1%) eram primĂĄrios do sistema musculoesquelĂ©tico (artrogripose [4], escoliose [1], plagiocefalia, [1] schistosomus reflexus [1] e diprosopia [1]); e outros oito (15,1%) foram alocados no sistema digestivo (palatosquise [3], atresia anal [1], atresia anorretal [1], atresia - anocolĂŽnica [1], fĂstula reto-vaginal [1] e fĂstula reto-uretral [1]); em cinco ocasiĂ”es (9,4%) o DC afetava o sistema cardiovascular (persistĂȘncia do ducto arterioso [2], persistĂȘncia do forame oval [2] e defeito do septo ventricular [1]); quatro (7,5%) afetavam o sistema linfĂĄtico e consistiam de hipoplasia ou aplasia de vasos linfĂĄticos e linfonodos associadas a linfedema. Dois casos (3,4%), de hipotricose foram observados afetando o integumento; um caso (1,9%) de estenose traqueal foi encontrado no sistema respiratĂłrio e um caso (1,9%) de bĂłcio envolvia o sistema endĂłcrino. Os resultados indicam que a maioria dos DCs em bovinos na RegiĂŁo Central do Rio Grande do sul Ă© esporĂĄdica. No entanto, seu estudo continuado Ă© importante para o estabelecimento de sua etiologia e controle
Factors Associated with Revision Surgery after Internal Fixation of Hip Fractures
Background: Femoral neck fractures are associated with high rates of revision surgery after management with internal fixation. Using data from the Fixation using Alternative Implants for the Treatment of Hip fractures (FAITH) trial evaluating methods of internal fixation in patients with femoral neck fractures, we investigated associations between baseline and surgical factors and the need for revision surgery to promote healing, relieve pain, treat infection or improve function over 24 months postsurgery. Additionally, we investigated factors associated with (1) hardware removal and (2) implant exchange from cancellous screws (CS) or sliding hip screw (SHS) to total hip arthroplasty, hemiarthroplasty, or another internal fixation device. Methods: We identified 15 potential factors a priori that may be associated with revision surgery, 7 with hardware removal, and 14 with implant exchange. We used multivariable Cox proportional hazards analyses in our investigation. Results: Factors associated with increased risk of revision surgery included: female sex, [hazard ratio (HR) 1.79, 95% confidence interval (CI) 1.25-2.50; P = 0.001], higher body mass index (fo
Measurement of forward charged hadron flow harmonics in peripheral PbPb collisions at âsNN = 5.02 TeV with the LHCb detector
Flow harmonic coefficients,
v
n
, which are the key to studying the hydrodynamics of the quark-gluon plasma (QGP) created in heavy-ion collisions, have been measured in various collision systems and kinematic regions and using various particle species. The study of flow harmonics in a wide pseudorapidity range is particularly valuable to understand the temperature dependence of the shear viscosity to entropy density ratio of the QGP. This paper presents the first LHCb results of the second- and the third-order flow harmonic coefficients of charged hadrons as a function of transverse momentum in the forward region, corresponding to pseudorapidities between 2.0 and 4.9, using the data collected from PbPb collisions in 2018 at a center-of-mass energy of 5.02
TeV
. The coefficients measured using the two-particle angular correlation analysis method are smaller than the central-pseudorapidity measurements at ALICE and ATLAS from the same collision system but share similar features
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