BACKGROUND There is no ideal procedure for the treatment of chronic skin ulcers. The use of platelet gel (PG) in this indication is raising interest. OBJECTIVE To evaluate the safety and efficacy of a new procedure combining allogeneic single-donor PG and fibrin glue (FG) to enhance skin graft take for treating recalcitrant ulcers. MATERIALS & METHODS Fifteen patients with 17 ulcers of vari...

Lipoteichoic acid (LTA) is a major immunostimulatory molecule in the cell wall of Gram-positive bacteria. Adhesion of LTA to a polystyrene surface drastically increased its immunostimulatory potency in human whole blood in comparison to soluble LTA, although only 1% of the LTA had bound, as determined using rhodamine-labelled LTA. The release of the proinflammatory cytokines IL-1beta, TNF and I...

Giant cell tumor (GCT) remains as major health problem. GCT which located at the lower end of the radius tends to be more aggressive. Wide excision and reconstruction of the wrist in stage 3 of distal radius GCT lesion is an optimal modality to prevent tumor recurrence. However, dislocation often occurs as its complication. We are reporting patient with GCT of distal radius treated with wide ex...

Current studies on microplastic pollution mainly focus marine systems. However, few have investigated microplastics in an urban lake. This research intends to use lake (Songshan Lake) as example explore the characteristics of and principal component well heat map analysis discuss relationships between different shapes microplastics. According this study, average abundance surface water sediment...

2010 platform (Roche Diagnostics). Ionized calcium and 25-hydroxyvita-min D (Nichols Advantage) were also measured in all samples. Results for the healthy individuals are presented in Fig. 1. The bio-intact PTH values measured by the IRMA and chemiluminescence immunoas-say were, on average, 50% and 30% lower, respectively, than the PTH measured by the Elecsys. Regression analysis demonstrated s...

Synthesis of densely grafted polymer brushes from good solvent polymer solutions is difficult when the surface interaction is only weakly attractive because of the strong stenc repulsion between the polymer chains To circumvent this difficulty we graft polymer layers in a poor solvent to exploit attractive polymer-polymer interactions which largely nullify the repulsive stenc interactions. This...

Certain styrenic thermoplastic block copolymer elastomers can be processed to exhibit anisotropic mechanical properties which may be desirable for imitating biological tissues. The ex-vivo hemocompatibility of four triblock (hard-soft-hard) copolymers with polystyrene hard blocks and polyethylene, polypropylene, polyisoprene, polybutadiene or polyisobutylene soft blocks are tested using the mod...

Microplastic (MP) pollution represents a novel environmental pressure acting on freshwater ecosystems. Improving our understanding of the dynamics MP in ecosystems is therefore prerequisite for managing and limiting this pollution. In study, we quantified spatial temporal variability (size range 700 ?m – 5 mm) surface water 14 sites located across Garonne river catchment (Southwestern France, 6...

This contribution presents an updated overview of the different copolymers containing stereoregular polystyrene blocks. Special emphasis is placed on syndiospecific and isospecific copolymerization of styrene with co-monomers (ethylene and α-olefins, conjugated and non-conjugated dienes, styrene derivatives, etc.). The catalytic systems involved are described and the polymerization mechanisms a...