Cheilitis granulomatosa is a rare disorder of unknown etiology. The condition produces chronic and persistent swelling of one or both lips. The treatment of cheilitis granulomatosa is usually ineffective. Various forms of treatment have been used with variable success. Here I report a 40-year old woman from suburbs of Ahwaz, with persistent swelling of lower lip from 8 months ago, who had not r...

Despite the important role that mechanical forces play in tumor growth and therapy, the contribution of swelling to tumor mechanopathology remains unexplored. Tumors rich in hyaluronan exhibit a highly negative fixed charge density. Repulsive forces among these negative charges as well as swelling of cancer cells due to regulation of intracellular tonicity can cause tumor swelling and developme...

Lymphangioma is an extremely rare cause of scrotal swelling. We are reporting such a tumor in a one and half year old child presenting with a painless, progressive scrotal swelling. The mass was evaluated and excised completely. Histopathology confirmed it as Lymphangioma.

When the available statistical information is imperfect, it is dangerous to follow standard optimisation procedures to construct an optimal portfolio, which usually leads to a strong concentration of the weights on very few assets. We propose a new way, based on gener-alised entropies, to ensure a minimal degree of diversiication.

Glucose-sensitive hydrogels were prepared by the copolymerization of diethylaminoethyl methacrylate (DEAEM), poly(ethylene glycol) monomethacrylate (PEGMA) and functionalized glucose oxidase (GOD) and catalase in solution. Tetra(ethylene glycol) dimethacrylate (TEGDMA) was used as the crosslinking agent. The equilibrium and dynamic swelling properties were studied to investigate the pHsensitive...

Hybrid polymeric networks composed of polyacrylamide and chitosan were developed to determine their swelling and ascorbic acid delivery kinetics at various chitosan concentrations. The hybrid acrylamide/chitosan hydrogels were synthesized in aqueous itaconic acid solution (1% w/w). Young’s modulus was also evaluated for the hydrogels, and the results were correlated with the swelling properties...

Drug release from a swelling hydrogel matrix is a complicated process where diffusion of drug molecules is coupled to the swelling kinetics. The swelling influences the diffusional flux of drug molecules by increasing the diffusion coefficient and diffusional pathlength. Release of phenylpropanolamine from apoly(hydroxyethy1 methacrylate-co-methacrylic acid) hydrogel, initially at low pH, is hi...

Angular light-scattering studies have been carried out on suspensions of isolated rat liver mitochondria. The angular scatter pattern has a large forward component, typical of large particles. Changes in dissymmetry and in the intensity of light scattered at 90 degrees have been correlated with changes in optical density during the course of mitochondrial swelling and contraction. Such changes ...