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Searching for early breast cancer biomarkers by serum protein profiling of pre-diagnostic serum; a nested case-control study

Background: Serum protein profiles have been investigated frequently to discover early biomarkers for breast cancer. So far, these studies used biological samples collected at or after diagnosis. This may limit these studies' value in the search for cancer biomarkers because of the often advanced tumor stage, and consequently risk of reverse causality. We present for the first time pre-diagnostic

Rising methane emissions from northern wetlands associated with sea ice decline

The Arctic is rapidly transitioning toward a seasonal sea ice-free state, perhaps one of the most apparent examples of climate change in the world. This dramatic change has numerous consequences, including a large increase in air temperatures, which in turn may affect terrestrial methane emissions. Nonetheless, terrestrial and marine environments are seldom jointly analyzed. By comparing satellite

A1M/α1-microglobulin is proteolytically activated by myeloperoxidase, binds its heme group and inhibits low density lipoprotein oxidation.

α1-microglobulin (A1M) is a 26 kDa plasma and tissue protein with reductase activity and radical- and heme-binding anti-oxidative functions. In addition, exposure of A1M to hemoglobin has been shown to induce proteolytic elimination of a C-terminal tetrapeptide yielding a heme-degrading form, truncated A1M (t-A1M). Myeloperoxidase (MPO), a heme-containing enzyme that catalyzes the production of fr

IKAROS and LEUKEMIA

Popular Abstract in Swedish Den vanligaste barncancerformen är akut leukemi, en form av blodcancer som uppstår i immunförsvarets celler och som drabbar cirka 75 barn i Sverige varje år. Även om de flesta av barnen idag botas får en av fem återfall och då minskar överlevnaden drastiskt trots intensiv behandling. Vad det är som gör leukemin mer motståndskraftig när den återkommer vet man ännu inte iAcute lymphoblastic leukemia (ALL) is characterized by an accumulation of immature lymphoid cells in the bone marrow and is the most common cancer type in children. It is an immunophenotypically, morphologically, clinically, and genetically heterogeneous disorder that comprises several distinct subtypes. Proper classification is important because determining the correct subtype plays a vital role

Low carotid calcium score is associated with higher levels of glycosaminoglycans, tumor necrosis factor-alpha, and parathyroid hormone in human carotid plaques.

BACKGROUND AND PURPOSE: Computed tomography (CT) is used to study coronary artery plaques, but little is known about its potential to characterize plaque composition. This study assesses the relation between carotid calcium score (CCS) by CT and plaque composition, namely extracellular matrix, inflammatory mediators, and calcium metabolites. METHODS: Thirty patients with significant carotid sten

Appropriate Tone Accent Production in L2-Swedish by L1-Speakers of Somali

It has been suggested that speakers with an L1 with lexical tones may have an advantage when it comes to perceptually discriminating between different tones in another tone language (Kaan, Wayland, Bao & Barkley, 2007). Other studies in L2-learning show that this is not entirely the case (van Dommelen & Husby 2009, So & Best 2010). A model of typological pitch prominence (Schaefer &

Exploring policy evaluation approaches addressing micro-economic decisions to improve energy efficiency in the residential sector

Abstract in UndeterminedThe objective of the report is to analyse simulation results coming from the use of a policy evaluation method that encompasses a wider set of determinants for technology choice. To that end, we use the EEB_Sweden model v1.0. Still in an early stage of development, the model offers an opportunity to capture or integrate critical modelling aspects that justify our research p

Kinetics of Ligand Binding to Membrane Receptors from Equilibrium Fluctuation Analysis of Single Binding Events

Equilibrium fluctuation analysis of single binding events has been used to extract binding kinetics of ligand interactions with cell-membrane bound receptors. Time-dependent total internal reflection fluorescence (TIRF) imaging was used to extract residence-time statistics of fluorescently stained liposomes derived directly from cell membranes upon their binding to surface-immobilized antibody fra

Conformity assessment for machine graded timber by using output control

In the Nordic countries machine strength grading of structural timber is becoming increasingly important. A new standard, EN 14081, which allows CE-marking of strength graded structural timber was recently accepted. This standard allows both machine

control and output control as methods for controlling the graded timber. Machine control is most commonly used in Europe. The project reporte

Availability of exercise facilities and physical activity in 2,037 adults: cross-sectional results from the Swedish neighborhood and physical activity (SNAP) study

Background: Exercise facilities may have the potential to promote physical activity among residents, and to support an active lifestyle throughout the year. We investigated the association between objectively assessed availability of exercise facilities and objectively assessed physical activity outcomes, and whether time of year had a modifying effect on these associations. Methods: A total of 2,

A NEMO potential that includes the dipole-quadrupole and quadrupole-quadrupole polarizability.

To increase the accuracy of molecular force fields a systematical and balanced improvement of the various terms included is needed. In this work, we have followed this strategy to improve the quality of the NEMO potential for the formaldehyde dimer by introducing local quadrupole moments and higher-order polarizabilities. It is found that inclusion of the quadrupole moment significantly improves t

A beta 40 Oligomers Identified as a Potential Biomarker for the Diagnosis of Alzheimer's Disease

Alzheimer's Disease (AD) is the most prevalent form of dementia worldwide, yet the development of therapeutics has been hampered by the absence of suitable biomarkers to diagnose the disease in its early stages prior to the formation of amyloid plaques and the occurrence of irreversible neuronal damage. Since oligomeric A beta species have been implicated in the pathophysiology of AD, we reasoned

Early changes in myocardial repolarization and coronary perfusion after cardiopulmonary bypass surgery for ASD repair in children

Background: In adults, impaired myocardial repolarization and increased risk of arrhythmia are known consequences of open heart surgery. Little is known, however, about post-operative consequences of cardiopulmonary bypass surgery in children. The aim of this study was to assess ventricular repolarization and coronary perfusion after bypass surgery for atrial septal defect (ASD) repair in children

Inter-domain electron transfer in cellobiose dehydrogenase: modulation by pH and divalent cations

The flavocytochrome cellobiose dehydrogenase (CDH) is secreted by wood-decomposing fungi, and is the only known extracellular enzyme with the characteristics of an electron transfer protein. Its proposed function is reduction of lytic polysaccharide mono-oxygenase for subsequent cellulose depolymerization. Electrons are transferred from FADH(2) in the catalytic flavodehydrogenase domain of CDH to

Neuroinflammation in Lyme neuroborreliosis affects amyloid metabolism

Background: The metabolism of amyloid precursor protein (APP) and beta-amyloid (A beta) is widely studied in Alzheimer's disease, where A beta deposition and plaque development are essential components of the pathogenesis. However, the physiological role of amyloid in the adult nervous system remains largely unknown. We have previously found altered cerebral amyloid metabolism in other neuroinflam