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A Metalloproteinase Mirolysin of Tannerella forsythia Inhibits All Pathways of the Complement System.

Recent reports focusing on virulence factors of periodontal pathogens implicated proteinases as major determinants of remarkable pathogenicity of these species, with special emphasis on their capacity to modulate complement activity. In particular, bacteria-mediated cleavage of C5 and subsequent release of C5a seems to be an important phenomenon in the manipulation of the local inflammatory respon

A direct numerical simulation study of interface propagation in homogeneous turbulence

A 3D direct numerical simulation (DNS) study of the evolution of a self-propagating interface in forced constant-density statistically stationary homogeneous isotropic turbulence was performed by solving Navier–Stokes and level-set equations under a wide range of conditions that cover various (from 0.1 to 2.0) ratios of the interface speed SL to the r.m.s. turbulent velocity U′ and various (50, 10

Bratman, Searle, and Simplicity. A comment on Bratman, Shared Agency : A comment on Bratman, Shared Agency: A Planning Theory of Acting Together

Michael Bratman’s work is established as one of the most important philosophical approaches to group agency so far, and Shared Agency, A Planning Theory of Acting Together confirms that impression. In this paper I attempt to challenge the book’s central claim that considerations of theoretical simplicity will favor Bratman’s theory of collective action over its main rivals. I do that, firstly, by

Monomer Distributions and Intrachain Collisions of a Polymer Confined to a Channel

We study the conformations of a self-avoiding polymer confined to a channel by computing the cross-sectional distributions of the positions of its monomers. By means of Monte Carlo simulations for a self-avoiding, freely jointed chain, we determine how the cross-sectional distribution for a given monomer depends on its location in the polymer and how strongly this distribution is affected by self-

Saliva S100B in professional sportsmen: High levels at resting conditions and increased after vigorous physical activity

Background: Neurological dysfunction is a key medical concern in professional sportsmen (PSM). We investigated whether saliva S100B concentrations in PSM and healthy controls are modified before and after training. Methods: We conducted a case-control-study in 75 patients (25 PSM vs 50 controls) in which S100B saliva concentrations were expressed as absolute values and percentage of change (%) fro

Analysis of binding sites on complement factor I using artificial N-linked glycosylation.

Factor I (FI) is a serine protease that inhibits all complement pathways by degrading activated complement components C3b and C4b. FI functions only in the presence of several cofactors such as factor H, C4b-binding protein, complement receptor 1 and membrane cofactor protein. FI is composed of two chains linked by a disulphide bridge; the light chain comprises only the serine protease (SP) domain

The Preparation of School Psychologists and Specialists in Educational Psychology in Sweden

School psychologists have a new and stronger position in Sweden’s educational system than earlier. For example, as of July 2011, all Swedish students ages 6 through 18 have guaranteed access to school psychology services. The school psychologists’ roles are to be active participants and coworker in the student health service team, working to promote student health in the Learning environment. The

Experimental inflammation following dural application of complete Freund's adjuvant or inflammatory soup does not alter brain and trigeminal microvascular passage.

Migraine is a paroxysmal, disabling primary headache that affects 16 % of the adult population. In spite of decades of intense research, the origin and the pathophysiology mechanisms involved are still not fully known. Although triptans and gepants provide effective relief from acute migraine for many patients, their site of action remains unidentified. It has been suggested that during migraine a

Association of HTR2A Polymorphisms With Chronic Widespread Pain and the Extent of Musculoskeletal Pain

Objective. The aim of the current study was to investigate whether genetic variation in genes across the serotoninergic system is associated with chronic widespread pain (CWP) and the number of pain sites reported. Methods. A discovery cohort, with pain data at 3 time points, was used to investigate genetic associations with 2 phenotypes: 1) CWP (at >= 2 time points; n = 164) compared with pain-fr

Development of functional impairment and disability in rheumatoid arthritis patients followed for 20 years - relation to disease activity, joint damage and comorbidity.

Objectives. To study the course of impairment measured by signals of functional impairment (SOFI) and disability measured by health assessment questionnaire (HAQ) over 20 years in rheumatoid arthritis (RA) patients followed from diagnosis. To explore the contribution of disease activity, joint damage and comorbidity to variation of SOFI and HAQ over time. Methods. RA patients diagnosed 1985-1989 w

Bumblebees measure optic flow for position and speed control flexibly within the frontal visual field.

When flying through narrow spaces, insects control their position by balancing the magnitude of apparent image motion (optic flow) experienced in each eye and their speed by holding this value about a desired set-point. Previously, it has been shown that when bumblebees encounter sudden changes in the proximity to nearby surfaces - as indicated by a change in the magnitude of optic flow on each si

Controlled, cross-sectional MRI evaluation of joint status in severe haemophilia A patients treated with prophylaxis vs. on demand

In patients with haemophilia A, factor VIII (FVIII) prophylaxis reduces bleeding frequency and joint damage compared with on-demand therapy. To assess the effect of prophylaxis initiation age, magnetic resonance imaging (MRI) was used to evaluate bone and cartilage damage in patients with severe haemophilia A. In this cross-sectional, multinational investigation, patients aged 12-35years were assi

Compensation for wind drift by migrating swifts

We investigated the orientation in relation to wind of common swifts, Apus apus, during nocturnal spring and autumn migration. Swifts are highly adapted to a life in the air, showing wind-dependent orientation during nocturnal roosting flights, and may be expected to be more efficient in their wind drift/compensation behaviour than nocturnal passerine migrants, which are usually subjected to full

The unique structure of Haemophilus influenzae protein E reveals multiple binding sites for host factors.

Haemophilus influenzae protein E (PE) is a multifunctional adhesin, involved in direct interactions with lung epithelial cells and host proteins, including plasminogen and the extracellular matrix proteins vitronectin and laminin. We recently crystallized PE and successfully collected X-ray diffraction data to 1.8 Å. Here we solved the structure of a recombinant version of PE and analyzed differen

Thin InAs membranes and GaSb buffer layers on GaAs(001) substrates

Thin InAs layers and membranes are fabricated on GaAs substrates using GaSb buffer layers grown by MOVPE. The quality of the GaSb buffer layers is optimized and epitaxial InAs layers are grown on GaSb layers of various thickness. The best GaSb buffer layers are obtained for a nucleation temperature of 450 degrees C and a subsequent growth temperature of 570 degrees C with a V/III ratio of 3, as co

Children with Atopic Dermatitis Should Always be Patch-tested if They Have Hand or Foot Dermatitis.

In industrialised countries atopic dermatitis (AD) is the most common chronic inflammatory disease among children. Many factors influence this disease in a negative way and contact allergy is one such factor. The aim of the study was to examine the frequency of contact allergy among children with the diagnosis AD in Malmö, Sweden and to evaluate if a significant degree of contact allergies in thes