Background: One area of nanoscience deals with nanoscopic interactions between nanostructured materials and biological systems. To elucidate the effects of the substrate surface morphology and viscoelasticity on cell proliferation, fractal analysis was performed on endothelial cells cultured on nanocomposite samples based on silicone rubber (SR) and various concentrations of organomodified nano...

Background: Vascular endothelial growth factor-A (VEGF-A), an endothelial cell-specific mitogen produced by various cell types, plays important roles in cell differentiation and proliferation. In this study we investigated the effect of recombinant VEGF-A on differentiation of mesenchymal stem cells (MSCs) to endothelial cells (ECs). Methods: VEGF-A was expressed in E. coli BL21 (DE3) and BL21...

BACKGROUND Patients with endothelial disease also often have scarring or surface corneal disease. This study examined the outcomes of phototherapeutic keratectomy (PTK) performed in patients with prior Descemet's stripping endothelial keratoplasty (DSEK). METHODS This retrospective case series examined all patients undergoing PTK after DSEK in a single private practice. The primary outcome wa...

purpose : to determine and evaluate the visual acuity (va) and refracion of correcting compound severe myopic astigmatism with the artisan toric intraocular lenses (iols) methods : in this noncontrolled clinical trial, 15 patients with severe astigmatism and at least 2.0 diopters (d) of astigmatism were enrolled. all patients met the inclusion criteria. artisan toric iol implantation was recomm...

Background: Pre-eclampsia is a complex disease process originating at the maternal- fetal interface that affects multiple organ systems. The exact pathophysiology of preeclampsia not known but it considered to be associated with endothelial cell dysfunction, increased inflammatory responses and hypercoagulability. receptors located on platelets are activated in pre-eclampsia by several protease...

Note: Ten chapters were prepared as background for the work of the Maize Advisory Group and for input to the public symposium, held 11 March 2004, in Oaxaca as part of the CEC Article 13 study on maize and biodiversity. These chapters were later reviewed and revised prior to this release, based on comments received at the symposium and during the subsequent comment period. Responses to reviewer...

Note: Ten chapters were prepared as background for the work of the Maize Advisory Group and for input to the public symposium, held 11 March 2004, in Oaxaca as part of the CEC Article 13 study on maize and biodiversity. These chapters were later reviewed and revised prior to this release, based on comments received at the symposium and during the subsequent comment period. Responses to reviewer...

Purpose Descemet's membrane endothelial keratoplasty (DMEK) is a minimally invasive partial corneal transplant procedure used in patients with failing endothelial membranes. This study aims to identify those factors which influence the need for a rebubble of the corneal graft. Methods A total of 94 eyes that received DMEK between March 2014 and January 2016 at Vance Thompson Vision were used ...

Note: Ten chapters were prepared as background for the work of the Maize Advisory Group and for input to the public symposium, held 11 March 2004, in Oaxaca as part of the CEC Article 13 study on maize and biodiversity. These chapters were later reviewed and revised prior to this release, based on comments received at the symposium and during the subsequent comment period. Responses to reviewer...