The liquid C-13-NMR analysis indicated that methylolureas had the dominant content in MMU with the reaction between urea and formaldehyde Under the alkaline condition. The PUF cocondensed resins had no free formaldehyde. methylolureas were well incorporated into the cocondensed resins by reacting with phenolic units to form cocondensed methylene bridges.
The second formaldehyde influenced the further reaction and the structure of the PUF resins. The resins with the prepared method of PUFB possessed relatively high degree of polymerization and low proportion of unreacted methylol groups. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 112: 2195-2202, 2009″
“Background Hypertrophic DNA Damage inhibitor and contracture scars are common problems after burn injuries and cause functional and cosmetic deformities. A wide variety of treatments has been advocated for postburn selleckchem pathologic scars regression. Unfortunately, the reported efficacy has been variable.
Objectives To investigate the use of extracorporeal shock wave therapy (ESWT), which mainly targets the fibroblasts in scar tissue, as an effective modality for scar treatment in burn patients.
Materials and Methods An experimental study with ESWT was performed in 16 patients with postburn scars contractures, hypertrophic
scars, or keloids twice a week for 6 weeks. Digital photographs were obtained and visual analogue scales were completed before and after treatment. Results Already after the first session, scars appeared more pliable, and color mismatch was less evident. At the end of the study period, all treated scars obtained a more acceptable appearance.
Conclusions Extracorporeal shock wave therapy is a feasible
and cost-effective treatment in the management of postburn pathologic scars.”
“Study Design. Controlled clinical study.
Objective. To compare muscle and platelet calmodulin and melatonin concentrations of scoliotic and nonscoliotic populations.
Summary of Background Data. Melatonin and A-1210477 nmr calmodulin are potential key molecules in scoliosis etiology. Calmodulin is not only a second messenger of melatonin but also has been shown to have effects on muscle contractility. There is a possibility that it may be of importance in the regulation of spinal alignment. Platelets have been defined as mini muscles calmodulin and melatonin levels of which may be the projections of muscle values.
Methods. Twenty patients undergoing posterior surgery for adolescent idiopathic scoliosis (AIS) and 9 thoracic-lumbar trauma patients undergoing posterior surgery constituted the population. Autologous bloods were collected and processed to obtain platelets. Paravertebral muscle tissue samples from both sides were obtained at T12-L1 level intraoperatively.