A pH-Responsive Hydrogel for the Oral Delivery of Ursolic Acid: A Pentacyclic Triterpenoid Phytochemical.

In this study, poly(HEMA-PEGxMEM-IA) hydrogels were prepared by radical copolymerization of poly(ethylene glycol) methyl ether methacrylate (PEGxMEM), 2-hydroxyethyl methacrylate (HEMA), and itaconic acid (IA). The reaction was carried out in ethanolic solution using N,N'-methylenebisacrylamide (MBA) as a crosslinking agent and 1-hydroxycyclohexyl phenyl ketone (HCPK) as a photo-initiator. The poly(HEMA-PEGxMEM-IA) hydrogels (HGx) were evaluated as a delivery system for ursolic acid (UA), a phytochemical extracted from the plant "flor de arena".

Use of an Adipofascial Superficial Circumflex Iliac Artery Perforator Flap to Improve Contour Following Resection of Upper Extremity Amniotic Band Constriction: A Report of Two Patients.

Amniotic band syndrome (ABS) is a congenital disease that causes a variable degree of deformity and tissue disruption. Surgical excision of fibrotic tissue and advancement of local flaps is the gold standard for constriction bands of the upper limb. We report the use of an adipofascial Superficial Circumflex Iliac Artery perforator (SCIP) flap to improve contour following amniotic band resection in the upper extremity in two patients with ABS.