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Calcium-induced generation of reactive oxygen species in brain mitochondria is mediated by permeability transition.

Mitochondrial uptake of calcium in excitotoxicity is associated with subsequent increase in reactive oxygen species (ROS) generation and delayed cellular calcium deregulation in ischemic and neurodegenerative insults. The mechanisms linking mitochondrial calcium uptake and ROS production remain unknown but activation of the mitochondrial permeability transition (mPT) may be one such mechanism. In

SIX1 protein expression selectively identifies blastemal elements in Wilms tumor.

BACKGROUND: Wilms tumor (WT) is the most common renal neoplasm in children. Histologically, most WTs consist of three tissue elements: blastema, epithelium, and stroma. Some cases also show diffuse or focal anaplastic features. Previous studies have shown that a predominance of blastemal cells in post-chemotherapy WT specimens is associated with a poor clinical course. However, there is currently

WNT-5a-CKIalpha signaling promotes beta -catenin/E-cadherin complex formation and intercellular adhesion in human breast epithelial cells.

Wnt-5a is a non-transforming Wnt protein that is implicated in cell-polarity, adhesion and motility. We have previously shown that low expression of Wnt-5a is a predictor of shorter disease-free survival in human breast cancer. Here, we investigated whether ss-catenin/E-cadherin mediated cell-cell adhesion was affected by loss of Wnt-5a in breast carcinomas, thereby promoting a metastatic behavior

Unpleasant and pleasant memories of intensive care in adult mechanically ventilated patients-Findings from 250 interviews.

AIM: In order to improve the patients' comfort and well-being during and after a stay in the intensive care unit (ICU), the patients' perspective on the intensive care experience in terms of memories is essential. The aim of this study was to describe unpleasant and pleasant memories of the ICU stay in adult mechanically ventilated patients. METHOD: Mechanically ventilated adults admitted for more

Identification and assignment of the absolute configuration of biologically active methyl-branched ketones from limnephilid caddisflies

Glands of the 4th and 5th abdominal sternite of the caddis flies Potamophylax latipennis, Potamophylax cingulatus, and Glyphotaelius pellucidus contain (S)-4-methyl-3-heptanone (4a), (4S,6S)-4,6-dimethyl-3-octanone (4b), and (4S,6S)-4,6-dimethyl-3-nonanone (4c). As shown by gas chromatography coupled with electrophysiological recordings, these ketones elicit a strong response in the insects' anten

Proximal placement of limb electrodes: a potential solution for acquiring standard electrocardiogram waveforms from monitoring electrode positions.

There is currently a challenge to produce an electrocardiogram (ECG) recording of waveforms that are "standard" and also achieve the "noise immunity" required for continuous monitoring. The potential solutions that have been considered are to label each torso-recorded ECG as "nonstandard, torso-recorded," designate torso placement as "standard," or to reconstruct the "equivalent distally recorded

Vitronectin binds to the head region of Moraxella catarrhalis ubiquitous surface protein A2 and confers complement-inhibitory activity.

Summary The serum resistance of the common respiratory pathogen Moraxella catarrhalis is mainly dependent on ubiquitous surface proteins (Usp) A1 and A2 that interact with complement factor 3 (C3) and complement inhibitor C4b binding protein (C4BP) preventing the alternative and classical pathways of the complement system respectively. UspA2 also has the capacity to attract vitronectin that in tur

Time-resolved Studies of Light-propagation In Paper

A method for time-resolved recording of light scattering in thin, highly scattering media is described. Subpicosecond pulses from a high-power Ti:sapphire laser are used, and single-shot recordings of the scattered light are made with a fast streak camera. The method is applied to the study of light scattering in paper, and a 1-ps resolution is demonstrated. The dependence of the light scattering

IgA nephropathy associated with a novel N-terminal mutation in factor H.

Most patients with IgA nephropathy exhibit complement deposition in the glomerular mesangium. Certain cases of IgA nephropathy have been associated with reduced levels of complement factor H. A recent study could not demonstrate mutations at the C-terminal of factor H. We describe a novel heterozygous mutation in factor H, position A48S (nucleotide position 142 G > T, alanine > serine), detected i

Interpain A, a Cysteine Proteinase from Prevotella intermedia, Inhibits Complement by Degrading Complement Factor C3.

Periodontitis is an inflammatory disease of the supporting structures of the teeth caused by, among other pathogens, Prevotella intermedia. Many strains of P. intermedia are resistant to killing by the human complement system, which is present at up to 70% of serum concentration in gingival crevicular fluid. Incubation of human serum with recombinant cysteine protease of P. intermedia (interpain A

A psycho-ecological model for the simulation of interpersonal relations: system development and some empirical results from teacher training

When a society plans the upbringing and education of its members, irrespective of age and level, one absolute requirement must be that it develops their ability of self-determination. A psycho-ecological approach to a study of the individual’s self-cognition (perception and evaluation) and self-determination (i.e. development of plans of action) focuses on the mutual relations existing between the

Delivery outcome after maternal use of drugs for migraine: a register study in sweden.

Background: The use of drugs for migraine during pregnancy may have adverse effects on delivery outcome, and warnings exist for such drugs regarding use during pregnancy. Most information in the literature concerns triptans. Objective: The aim of the study was to describe the delivery outcome when a woman had used drugs for migraine during pregnancy. Study Design: A register study where exposure f

Electromagnetic scattering from buried inhomogeneities - a general three-dimensional formalism

We will in the present paper derive a general three-dimensional formalism for electromagnetic scattering from buried inhomogeneities. We will exploit the transition matrix formalism, originally given by Waterman, to electromagnetic scattering in the presence of an infinite surface and a buried bounded inhomogeneity. The analysis explicitly assumes that the sources are located above the ground, but

Estimation of diurnal air temperature using MSG SEVIRI data in West Africa

Spatially distributed air temperature data with high temporal resolution are desired for several modeling applications. By exploiting the thermal split window channels in combination with the red and near infrared channels of the geostationary MSG SEVIRI sensor, multiple daily air temperature estimates can be achieved using the contextual temperature-vegetation index method. Air temperature was es