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Intestinal damage in enterohemorrhagic Escherichia coli infection.

Enterohemorrhagic Escherichia coli (EHEC) infection leads to marked intestinal injury. Sigmoid colon obtained from two children during EHEC infection exhibited abundant TUNEL-positive cells. To define which bacterial virulence factors contribute to intestinal injury the presence of Shiga toxin-2 (Stx2), intimin and the type III secretion system were correlated with symptoms and intestinal damage.

Stabilins are expressed in bone marrow sinusoidal endothelial cells and mediate scavenging and cell adhesive functions.

Bone marrow sinusoidal endothelial cells have a specific function as a site of transmigration of hematopoietic stem and progenitor cells and mature blood cells between bone marrow and blood stream. However, the specific characteristics of bone marrow sinusoidal endothelial cells are still largely unclear. We here report that these cells express stabilin-1 and stabilin-2, which in liver sinusoidal

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Review of Göran Gruber, "Medeltider. Samtida moblliseringsprocesser kring det förflutnas värden" (Linköping 2010)

Revealing user behaviour on the world-wide web

This paper presents the results of a qualitative study of user behaviour on the World-Wide Web. Eight participants were filmed whilst performing user-defined tasks and then asked to review the video-taped session during prompted recall. This data forms the basis for a series of descriptions of user behaviour and the postulation of a number of underlying cognitive mechanisms. Our results indicate t

Common variant in MTNR1B associated with increased risk of type 2 diabetes and impaired early insulin secretion.

Genome-wide association studies have shown that variation in MTNR1B (melatonin receptor 1B) is associated with insulin and glucose concentrations. Here we show that the risk genotype of this SNP predicts future type 2 diabetes (T2D) in two large prospective studies. Specifically, the risk genotype was associated with impairment of early insulin response to both oral and intravenous glucose and wit

Den fria men begränsade rörligheten

Rätten att röra sig fritt, inom och över nationsgränser, är ett ideal intimt förknippat med det moderna samhällets självförståelse. Att man kan bryta upp från en plats för att söka en annan, tillfällig eller permanent, vistelseort är en central del av vårt samhälles demokratiuppfattning. I synnerhet i dag är det påfallande hur starkt detta ideal framhävs. Berlinmurens fall och globaliseringen av a

FGF2 Specifies hESC-Derived Definitive Endoderm into Foregut/Midgut Cell Lineages in a Concentration-Dependent Manner.

Fibroblast growth factor (FGF) signaling controls axis formation during endoderm development. Studies in lower vertebrates have demonstrated that FGF2 primarily patterns the ventral foregut endoderm into liver and lung, whereas FGF4 exhibits broad anterior-posterior and left-right patterning activities. Furthermore, an inductive role of FGF2 during dorsal pancreas formation has been shown. However

Glutaredoxin-1 mediates NADPH-dependent stimulation of calcium-dependent insulin secretion.

Nicotinamide adenine dinucleotide phosphate (NADPH) enhances Ca(2+)-induced exocytosis in pancreatic beta-cells, an effect suggested to involve the cytosolic redox protein glutaredoxin-1 (GRX-1). We here detail the role of GRX-1 in NADPH-stimulated beta-cell exocytosis and glucose-stimulated insulin secretion. Silencing of GRX-1 by RNA interference reduced glucose-stimulated insulin secretion in b