Injectable filling agents offer the promise of a better appearance without surgery and, among them, hyaluronic acid is the most commonly used. Although complications are rare, it is necessary to know the possible side effects and complications in order to be prepared for their management. That is why many researchers have been focusing on the interactions between hyaluronic acid and pathogens, ...

BACKGROUND Bioengineered hyaluronic acid derivatives are currently available that provide for safe and effective soft-tissue augmentation in the comprehensive approach to nonsurgical facial rejuvenation. Current hyaluronic acid fillers do not require preinjection skin testing and produce reproducible, longer-lasting, nonpermanent results compared with other fillers, such as collagen. METHODS ...

Abstract The ultra-high pressure-assisted extraction (UHPE) of total phenols from Eucommia ulmoides leaves (TPEU) was optimized and its antioxidant activity on seed oil studied. effects UHPE pressure, time, ethanol concentration the yield TPEU were examined by response surface methodology. In addition, added to oil, (acid value, peroxide value) during storage optimal conditions as follows: 406 ...

PURPOSE In the treatment of interstitial cystitis, intravesical hyaluronic acid application may be suggested as a treatment option. In this randomized prospective study, the authors aimed to identify whether instilling the hyaluronic acid with electromotive drug administration (EMDA) would increase the tissue uptake and improve the efficacy. MATERIALS AND METHODS The data of 31 patients who h...

ABS TRACT Introduction: Cutaneous fillings are a common procedure in today’s dermatology, with the majority being carried out with hyaluronic acid isolated or combined with other substances. Objective: To study the effects of adding hyaluronic acid and polyethylene glycol to cultures of human dermal fibroblasts. Methods: The study evaluated: cell proliferation and production of type 1 collagen ...

UNLABELLED The vibration of the vocal fold lamina propria is an important factor involved in vocal production and aging may change the amount of hyaluronic acid in the vocal fold leading to dysphonia. AIMS This study compares the concentration of hyaluronic acid in vocal folds of aged and young female rats. STUDY DESIGN experimental. MATERIALS AND METHODS We used the vocal cords of 13 fem...

INTRODUCTION To protect residents from tobacco smoke exposure (TSE), the Boston Housing Authority (BHA) prohibited smoking in BHA-owned apartments beginning in 2012. Our goal was to determine if the smoke-free policy reduced TSE for non-smoking BHA residents. METHODS We compared TSE before the smoke-free policy (2012) and one year later among BHA residents as well as residents of the neighbor...

Scheelite associated with calcium-containing minerals such as calcite and fluorite is difficult to separate by flotation because of the Ca ions contained in mineral lattices, which cause scheelite have similar surface properties floatability gangue minerals. Traditional collectors oleic acid need add a large amount sodium silicate inhibitors, causes difficulties for settlement tailings. In addi...

It has been demonstrated in vitro that low concentrations of ascorbic acid rapidly depolymerize purified hyaluronic acid as judged from viscosity measurements (Skanse and Sundblad, 1943; Pigman, Rizvi, and Holley, 1961). Abrams and Sandson (1964) reported that the hyaluronic acid in rheumatoid synovial fluid is resistant to depolymerization by ascorbic acid in vitro. Serum proteins have been sh...

Although the vital roles of structures containing sialic acid in biomolecular recognition are well documented, limited information is available on how sialic acid structural modifications, sialyl linkages, and the underlying glycan structures affect the binding or the activity of sialic acid-recognizing proteins and related downstream biological processes. A novel combinatorial chemoenzymatic m...