This study highlights that metabolomics with global profiling and a highly reliable and reproducible H-1 NMR spectroscopic data set can provide a better understanding of unique changes in tea metabolites during tea fermentation. Nepicastat cost (C) 2010 Elsevier Ltd. All rights reserved.”
“In this work, we described a facile approach to preparing polypropylene (PP) surface functionalized with telechelic poly(lactic-co-glycolic acid) (HO-PLGA-COOH). The PP flakes were first treated with oxygen plasma and then grafted with different molecular weight PLGA (M-w
= 50, 100, and 300 K) in dry dichloromethane solution with the addition of phosphorus pentachloride (PCl5). The attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy measurements were used to characterize the composition of the PP surface. The appearance of 1756 cm(-1) for carbonyl (C=O) stretching and 1090 cm(-1) for C-O-C and the morphologies observations by atomic force microscopy show that PLGA graft covered the surface of PP flake. The IR
intensity at 1756 cm(-1) increases with the decreasing M-w of PLGA, and the molecular weight of PLGA also influence the grafting of PLGA on PP. The contact angle was used to monitor the changes in hydrophilicity of PP flake surface along the treatment procedure. PLGA-grafted PP (PP-g-PLGA) was eventually obtained. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 121: 210-216, 2011″
“Objectives. The aim of this study was to describe buy GDC-0068 the magnetic resonance images (MRIs) of the architecture of metastatic lymph nodes as well as healthy lymph nodes and to correlate the images with the histopathologic architecture of the lymph nodes from oral squamous cell carcinoma.
Study design. The signal intensities of 98 cervical lymph nodes from 20 patients VS-4718 with oral squamous cell carcinoma were evaluated on T2-weighted and diffusion-weighted whole-body imaging with background body signal suppression (DWIBS). The MRI findings were compared with the histopathologic architecture.
Results. On T2-weighted images, very
hyperintense and/or isointense areas were specific findings for lymph nodes containing metastases from oral squamous cell carcinoma. Histopathology indicated that these areas corresponded to cystic degeneration or keratinization. Using DWIBS images with inverted black-and-white image contrast, cystic degeneration, keratinization, fibrous tissue, tumor tissue, and lymphoid tissue were either hypointense or intermediate in intensity.
Conclusions. On T2-weighted images, very hyperintense and/or isointense areas were characteristic findings for lymph nodes containing metastases from oral squamous cell carcinoma. This suggests cystic degeneration or keratinization within the affected lymph nodes.