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Chronic iliac vein occlusion: midterm results of endovascular recanalization.

PURPOSE:To evaluate patency and clinical outcome in patients treated with endovascular recanalization and stent placement for chronic iliac vein occlusions. METHODS:During a 14-year period (1994-2008), 59 (38 women; median age 39 years) of 62 patients with chronic occlusion of the iliac vein segment in 66 limbs were successfully treated with endovascular recanalization and stent placement. A prosp

The Hypervariable Region of Streptococcus pyogenes M Protein Escapes Antibody Attack by Antigenic Variation and Weak Immunogenicity.

Sequence variation of antigenic proteins allows pathogens to evade antibody attack. The variable protein commonly includes a hypervariable region (HVR), which represents a key target for antibodies and is therefore predicted to be immunodominant. To understand the mechanism(s) of antibody evasion, we analyzed the clinically important HVR-containing M proteins of the human pathogen Streptococcus py

Gender differences in variables related to B-natriuretic peptide, left ventricular ejection fraction and mass, and peak oxygen consumption, in patients with heart failure.

AIM AND METHODS: We assessed gender differences in variables related to B-natriuretic peptide (BNP), left ventricular ejection fraction (LVEF), peak oxygen consumption (peak-VO2), and LV mass (LVM), among patients recently hospitalized for suspected heart failure (HF). RESULTS: Of 930 consecutive patients, 409 accepted follow-up after discharge, 221 of these had definite HF (90 women, mean age 74.

Evaluation of Lot Sizing Techniques

Standard lot-sizing models are often not directly applicable in practice. Different assumptions in lot-sizing models and the extent to which these assumptions are valid in various practical situations are discussed. Practitioners also tend to prefer simple standard methods even for complex problems, which means that adjustment of the lot sizes may be desirable. The ways in which such adjustments c

Evaluation of Automatic Quantification Programs for Myocardial Perfusion SPECT using Monte Carlo Simulations

Coronary artery disease (CAD) is a condition in which the blood supply to the myocardium is partially or completely blocked due to plaque build-up in the artery wall. Myocardial SPECT imaging is a commonly used technique to assess the blood flow to the myocardium and the function of the heart. The interpretation of the images can be difficult and subjective. Several automatic myocardial SPECT quan

Modified stainless steel surfaces targeted to reduce fouling - surface characterization

The surface properties of several modified stainless steel samples were characterized according to their chemical composition, roughness, topography and wettability. The modifications tested were SiF3+ and MoS22+ ion implantation; diamond-like carbon (DLC) sputtering: DLC. DLC-Si-O and SiOx, plasma enhanced chemical vapor deposition (PECVD); autocatalytic Ni-P-PTFE and silica coating. X-ray photoe

The Ran binding protein RanBPM interacts with Axl and Sky receptor tyrosine kinases.

Axl belongs to a particular subfamily of transmembrane receptor tyrosine kinases, the biological ligand for which is the growth/survival factor Gas6. However, little is known about the molecular mechanisms for Axl activation and signal transduction. We have previously identified a novel interaction between the intracellular domain of Axl and Ran binding protein in microtubule organising centre (Ra

Interactions of the extracellular matrix proteoglycans decorin and biglycan with C1q and collectins

Decorin and biglycan are closely related abundant extracellular matrix proteoglycans that have been shown to bind to C1q. Given the overall structural similarities between C1q and mannose-binding lectin (MBL), the two key recognition molecules of the classical and the lectin complement pathways, respectively, we have examined functional consequences of the interaction of C1q and MBL with decorin a

Stimulation of metazooplankton by photochemically modified dissolved organic matter

We examined the response of bacteria and proto- and metazooplankton to photomodified dissolved organic matter (DOM). Sterile filtered water from a eutrophic and a humic lake, that was either exposed to artificial ultraviolet (UV) radiation or kept dark, was added to semicontinuous laboratory microcosms that lasted for 7 weeks. Bacterial production responded positively to photochemical modification

Gemcitabine Treatment in Pancreatic Cancer – Prognostic Factors and Outcome.

Background: Pancreatic cancer is generally associated with a poor prognosis and often diagnosed in an advanced stage. The aim of the present study was to evaluate gemcitabine treatment concerning prognostic factors, clinical benefit, tolerance/ toxicity and survival. Methods: Patients with surgically nonresectable, locally advanced or metastatic pancreatic cancer treated with gemcitabine were incl

Banks, Repositories and Registries of Stem Cell Lines in Europe: Regulatory and Ethical Aspects.

To overview banks, repositories and registries of stem cell lines in Europe excluding bone marrow and cord blood banks; to concisely discuss the most important scientific, regulatory and ethical aspects of stem cell banking in a manner understandable to a layperson, but remain detailed enough not to compromise thoroughness of information. Review of scientific publications, laws and ethical guideli

The impact of social capital on changes in smoking behaviour: a longitudinal cohort study.

Background: Smoking prevalence across high-income countries such as the United Kingdom has significantly decreased over the past few decades; this decrease, however, has not occurred uniformly across social strata. The highest concentrations of smokers are currently found in lower-income groups. Lack of access to material resources and differing social norms have been cited as possible causes of t

Preoperative platelet-rich plasmapheresis and hemodilution with an autotransfusion device in total hip replacement surgery.

The effectiveness of both preoperative autologous donation (PAD) and intraoperative autotransfusion (IAT) with an autotransfusion device has recently been questioned. Preoperative apheresis, with separation of concentrated platelet rich-plasma (c-PRP) and erythrocyte concentrate (ERC), represents an aggressive use of the autotransfusion device. Can such a procedure replace PAD in total hip replace

Rabbit cortical bone tissue increases its elastic stiffness but becomes less viscoelastic with age

Abstract in Undetermined Bone is dynamic tissue undergoing changes in its composition, structure and functional properties during growth. It has been proposed that especially changes in the collagen phase of bone are responsible for making the bone more fragile, and potentially less viscoelastic with age. Hence, robust methods to measure viscoelasticitiy are needed. This study aimed to characteriz

Atherosclerotic plaques in the internal carotid artery and associations with lung function assessed by different methods.

Background: Previous studies on associations between reduced lung function and cardiovascular disease (CVD) have mainly been based on forced expiratory volume in 1-s (FEV(1) ) and vital capacity (VC). This study examined potential associations between five different lung function variables and plaques in the internal carotid artery (ICA). Methods: Subjects (n = 450) from a previous population-base

Smoking as an independent risk factor for myocardial infarction or stroke in type 2 diabetes: a report from the Swedish National Diabetes Register.

BACKGROUND: Few earlier studies have analysed smoking as a risk factor for myocardial infarction (MI) or stroke in type 2 diabetic patients. DESIGN AND METHODS: A longitudinal study involved 13 087 female and male patients with type 2 diabetes from the Swedish National Diabetes Register with no previous MI or stroke at baseline, aged 30-74 years, and with data available for all analysed variables,