79, = .94, and = .21, respectively). There was no significant difference in intraocular pressure change between the two groups during the follow-up period (P > .05).\n\nCONCLUSION: The current pilot study suggests that postoperative intravitreal injection of triamcinolone acetonide does not lead to better visual outcomes in patients undergoing pars plana vitrectomy for the treatment of idiopathic epiretinal membranes.”
“The 3-O-methylquercetin (3-MQ) is a flavonoid aglycone with important antioxidant, antiviral, and anticancer properties. The presence of 3-MQ in Nicotiana tabacum L trichomes is well known as the species’ response to environmental stress factors. Although 3-MQ has

been synthesized, its yield has been low and toxic by-products are formed that are difficult to separate. The present work reports the use of a simple method for extracting and isolating 3-MQ from organic S3I-201 cost N. tabacum trichomes to make it available in higher amounts and greater purity for biological tests or pharmaceutical applications. The influence of some parameters related to plant variety, cultivation, extraction, and isolation on the yield of this flavonoid is herein reported. The highest 3-MQyield was obtained using ethanol in the extraction with a plant:solvent ratio of 1:15 (w/v) and 30-min extraction time.

Isolating 3-MQ from the ethanol extract was successfully performed from the corresponding dry residue by normal phase column chromatography (CC). The younger leaves of the Dark variety, cultivated in Entinostat mw vase and collected at night, showed the highest 3-MQ yield. Thus, the Dark variety, ethanol extraction in a plant:solvent ratio of 1:15 (w/v) for 30 min, followed by CC isolation, were the best conditions for obtaining selleck 3-MQ with over 90% purity and 60% yield. These excellent results may be useful as an alternative, promising use of tobacco. (C) 2014 The Authors. Published by Elsevier B.V. All rights reserved.”
“Recently, the new trend in the second-generation ethanol industry is to use mild pretreatments, in order to reduce costs and to keep higher content of hemicellulose in the biomass. Nevertheless, a high enzyme dosage

is still required in the conversion of (hemi)cellulose. The interaction between cellulases and xylanases seems to be an effective alternative to reduce enzyme loading in the saccharification process. At first, to evaluate the synergism of xylanases on bagasse degradation, we have produced two xylanases from glycoside hydrolase family 10 (GH10) and three xylanases from glycoside hydrolase family11 (GH11),from two thermophilic organisms, Thermobifida fusca and Clostridium thermocellum, and one mesophilic organism, Streptomyces lividans. Peracetic acid (PAA) pretreated bagasse was used as substrate. The combination of XynZ-C (GH10, from C. thermocellum), and XlnB (GH11, from S. lividans) presented the highest degree of synergy after 6 h (3,62).