The positive
effect on the crystallization of PVDF may be ascribed to not only due to the existence GS-9973 of pi-cation interaction between the imidazolium cation and the aromatic multiwall carbon nanotubes structure, but also due to the electrostatic interaction between the bigger than CF2 of the polymer backbone and imidazolium cation, which speed up the crystallization kinetics.”
“Glaucoma may develop or worsen after ocular surface transplantation and often requires surgical management for adequate intraocular pressure control. Traditional glaucoma filtering procedures in patients with prior ocular surface transplant may be problematic for several reasons, which include mechanical disruption of the pre-existing graft, epithelial and stem cell toxicity induced by antifibrotic agents, and increased risk of future corneal transplantation failure. We describe the implantation of a glaucoma drainage implant via a limbal-based conjunctival incision with tube placement in the ciliary sulcus in three eyes of two patients with prior ocular surface transplantation. At a follow-up interval of 3-7 months, all three eyes have excellent postoperative control of intraocular pressure, stable vision, and healthy ocular surface grafts.”
“The Kaposi sarcoma-associated
herpesvirus (KSHV) is the causative agent of Kaposi sarcoma (KS), the most common HIV/AIDS-associated tumor worldwide. Involvement of the oral cavity portends a poor prognosis for patients with KS, but mechanisms for KSHV regulation of the oral tumor microenvironment are largely unknown. Infiltrating fibroblasts
AC220 concentration are found with KS lesions, and KSHV establishes latent infection within human primary fibroblasts in vitro, but contributions for KSHV-infected fibroblasts to the KS microenvironment have not been previously characterized. Secretion of pro-migratory factors and intra-tumoral invasion are characteristics of tumor-associated fibroblasts (TAF) found in the microenvironment of non-viral malignancies. In the present study, we show that latent KSHV infection of primary human fibroblasts isolated from the oral cavity enhances their find more secretion of KS-promoting cytokines and intrinsic invasiveness through VEGF-dependent mechanisms. Moreover, we find that KSHV induces these effects through Sp1- and Egr2-dependent transcriptional activation of the Extracellular Matrix MetalloPRoteinase INducer (emmprin). These data implicate KSHV activation of emmprin in the induction of a “TAF-like” phenotype for oral fibroblasts in the KS microenvironment and support the potential utility of targeting TAFs and/or emmprin in the treatment of oral KS. (C) 2011 Elsevier Ireland Ltd. All rights reserved.”
“During the period 2007-2008 several epizootics of Yellow fever with dead of monkeys occurred in southeastern Brasil, Paraguay, and northeastern Argentina.