3153965]”
“Infections with Mycobacterium tuberculosis (MTb) are globally prevalent in many countries, yet descriptions of placental pathology in tuberculous patients are scanty. The usual necrotizing granulomatous response associated with tuberculous infections requires an activation of the adaptive immune system. However, before this system is turned on, the 1st encounter with the tubercle bacillus is mediated by the innate immune system. This pathway utilizes innate surface

receptors in neutrophils and histiocytes predominantly and does not produce a PF-562271 granulomatous pattern of inflammation. In this report we describe 2 cases of placental involvement with MTb in which an acute abscess-like inflammatory response with Myeloperoxidase

and CD68-positive neutrophils and histiocytes causing acute villitis and intervillitis, with abundant acid-fast mycobacteria, were identified. Other cellular markers consistent with adaptive immunity were negative. These nongranulomatous lesions are seen AG-881 concentration in primary tuberculous infections occurring in a naive woman and, obviously, a naive fetus. These cases with early response inflammation in the placenta are frequently missed precisely because the mother is not known to be infected or has been recently diagnosed and because the symptoms in the newborn may not develop for several weeks, by which time the placenta may have been discarded. This report also shows that the differential diagnosis of acute villitis and intervillitis in the placenta

should include tuberculosis aside from the more common bacterial infections such as listeriosis.”
“Microcapsule/nanocapsule and encapsulation techniques have great potential for devices Of functional materials. Also, electrospinning has attracted great attention for the fabrication Of microstructures and nanostructures. The fluidity after melting limits the application of phase-transformation STA-9090 research buy thermochromic materials. In this study, with the melt coaxial electrospinning technique, a phase-transformation thermochromic material was encapsulated in poly(methyl methacrylate) nanofibers. A device of this phase-transformation thermochromic material was realized. With a poly(methyl methacrylate) shell with good optical transmission and a thermoresponsive core made of crystal violet lactone, bisphenol A, and 1-tetradecanol core, the fibers had good thermal energy management, fluorescent thermochromism, and reversibility. The fabrication of thermochromic core-shell nanofibers has further potential in the preparation of temperature sensors with good fluorescence signals and body-temperature calefactive materials with intelligent thermal energy absorption, retention, and release. (c) 2008 Wiley Periodicals, Inc. J Appl Polym Sci 412: 269-274, 2009″
“We report on the intrinsically limited low-field mobility of the two-dimensional electron gas (2DEG) in gated AlGaN/GaN and AlGaN/AlN/GaN heterostructures.