Vascularised fatty tissue: its role in prevention of the symptoms of Frey syndrome after parotidectomy.

We studied 37 consecutive patients who had parotidectomies between 2008 and 2017 and who had vascular fat flaps inserted to replace the excised parotid tissue and prevent Frey syndrome. They were followed up for 1-9 years to check for the relevant symptoms. We studied 17 female and 20 male patients, mean age 52 (range 19-78) years.

Nanostructured composite layers of mussel adhesive protein and ceria nanoparticles.

Mussel adhesive proteins are known for their high affinity to a range of different surfaces, and they therefore appear as ideal candidates for producing thin inorganic-organic composite films with high robustness. In this work we explore the possibility of making cohesive films utilizing layer-by-layer deposition of the highly positively charged mussel adhesive protein, Mefp-1, and negatively charged ceria nanoparticles. This particular material combination was chosen due to recent findings that such films provide good corrosion protection.

In situ investigations of Fe3+ induced complexation of adsorbed Mefp-1 protein film on iron substrate.

A range of in situ analytical techniques and theoretical calculations were applied to gain insights into the formation and properties of the Mefp-1 film on iron substrate, as well as the protein complexation with Fe(3+) ions. Adsorption kinetics of Mefp-1 and the complexation were investigated using QCM-D. The results suggest an initially fast adsorption, with the molecules oriented preferentially parallel to the surface, followed by a structural change within the film leading to molecules extending toward solution.

Structural and nanomechanical properties of paperboard coatings studied by peak force tapping atomic force microscopy.

Paper coating formulations containing starch, latex, and clay were applied to paperboard and have been investigated by scanning electron microscopy and Peak Force tapping atomic force microscopy. A special focus has been on the measurement of the variation of the surface topography and surface material properties with a nanometer scaled spatial resolution. The effects of coating composition and drying conditions were investigated.

COX inhibition excites enteric nerves that affect motility, alkaline secretion, and permeability in rat duodenum.

In anesthetized rats, the cyclooxygenase (COX) inhibitor indomethacin induces duodenal motility, increases duodenal mucosal alkaline secretion (DMAS), and evokes a transient increase in duodenal paracellular permeability (DPP). To examine whether enteric nerves influence these responses, the duodenum was perfused with lidocaine. Motility was assessed by measuring intraluminal pressure, and DPP was determined as blood-to-lumen clearance of (51)Cr-EDTA.