\n\nCONCLUSIONS. The correlation between structure and function is stronger in FDF and FDT compared with SAP. Correlations are strongest in temporal areas where glaucomatous damage tends to occur first. A better understanding of the structure-function
relationship should allow for improved detection and management of glaucoma patients. (Invest Ophthalmol Vis Sci. 2012; 53: 7553-7559) DOI:10.1167/iovs.12-10892″
“Currently available crosslinking methods for electrospun collagen nanofibers do not preserve the fibrous architecture over prolonged periods of time. In addition, electrospinning of collagen often involves solvents that lead to extensive protein denaturation. In this study, we demonstrate the advantage of acetic acid over 1,1,1,3,3,3 hexafluoroisopropanol (HFP) in preventing collagen denaturation. A novel photochemical https://www.selleckchem.com/products/SB-203580.html crosslinking method using rose bengal as the photoinitiator is also introduced. Using circular dichorism analyses, we demonstrate the fraction of collagen helical structure to
be significantly greater in acetic acid-spun fibers than HFP-spun fibers (28.9 +/- 5.9% vs. 12.5 +/- 2.0%, p < 0.05). GNS-1480 By introducing 0.1% (w/v) rose bengal into collagen fibers and subjecting these scaffolds to laser irradiation at a wavelength of 514 nm for 100 sec, biodegradable crosslinked scaffolds were obtained. Scaffold degradation as evaluated by soaking crosslinked collagen scaffolds in PBS at 37 degrees C, indicated a mass loss of 47.7 +/- 7.4% and 68.9 +/- 24.7% at day 7 and day 15, respectively. However, these scaffolds retained fibrous architecture for at least 21 days under physiological conditions. Neural stem cell line, C17.2, cultured on crosslinked collagen scaffolds proliferated after 7 days by forming a confluent layer of cells with extensive cellular projections that were indicative of neurite outgrowth. Taken together, these findings support the potential of acetic acid-electrospun photochemical crosslinked collagen nanofibers for neural tissue engineering. (C) 2010 Wiley Periodicals,
Inc. J Biomed Mater Res Part A: 95A: 276-282, 2010.”
“Every year about selleck chemicals 7 million people die from of various types of cancer, making this disease responsible for 12.5% of deaths worldwide. Consequently, there is an overwhelming demand to develop new, more potent and effective, anticancer drugs. Natural products represent the most valuable source with inexhaustible reserves, in which the researchers work could identify novel active agents that may serve as the leads and scaffolds for transformation into desperately needed efficacious drugs. This paper is devoted to reviewing some of the most outstanding achievements in the application of natural products as models and precursors for anticancer agents published in the post 2000 literature.