Cell growth on in situ photo-cross-linked electrospun acrylated cellulose acetate butyrate.

In this study, electrospinning was combined with UV curing technology for producing in situ photo cross-linked fibers from methacrylated cellulose acetate butyrate (CABIEM). ECV304 and 3T3 cells were seeded on electrospun fibrous scaffolds. Collagen modified CABIEM fibers were also prepared for improving cell adhesion and proliferation.

Preparation of biocompatible, UV-cured fumarated poly(ether-ester)-based tissue-engineering hydrogels.

The aim of this study was to develop biodegradable, photo-polymerizable in situ gel-forming systems prepared from a fumaric acid monoethyl ester (FAME) modified poly(lactide-co-glycolide) (PLGA) co-polymer. By reacting lactide and glycolide in the presence of stannous octoate as a catalyst and 2-ethyl,2-hydroxymethyl 1,3-propanediol as an initiator, hydroxyl terminated branched PLGA was synthesized. Afterwards, at room temperature hydroxyl terminated branched PLGA was reacted with fumaric acid monoethyl ester (FAME).

Preparation of collagen modified photopolymers: a new type of biodegradable gel for cell growth.

In this study a new branched methacrylated poly(propylene glycol-co-lactic acid) (PPG-PLA-IEM) and methacrylated cellulose acetate butyrate resin (CAB-IEM) were synthesized. Hydrogels with various amounts of PPG-PLA-IEM and CAB-IEM (25, 50 and 75 wt% IEM modified) were prepared by photopolymerization. Collagen tethered PEG-monoacrylate (PEGMA-collagen) was prepared and introduced as a bioactive moiety to modify the hydrogel in order to enhance cell affinity.

Photopolymerized injectable RGD-modified fumarated poly(ethylene glycol) diglycidyl ether hydrogels for cell growth.

In this study, photopolymerized hydrogels of fumarated poly(ethylene glycol) diglycidyl-co- poly(ethylene glycol) diacrylate have been synthesized and modified with cell adhesion peptide, Arg-Gly-Asp (RGD). The structural and mechanical properties of the hydrogels are found to be poly(ethylene glycol) diacrylate (PEGDA) dependent. The percentage of gelation is increased from 72 to 89 wt.

An alternative supporting electrolyte for enzyme immobilization in conducting polymers.

In this study an alternative supporting electrolyte was used in enzyme immobilization. Invertase was studied to observe the effect of the supporting electrolyte. Sulfonated poly(arylene ether sulfone) was used as the supporting electrolyte during the electrolysis of pyrrole.

Lymphangioma of the clivus: case report.

Objective: Different clival lesions have been reported in the literature previously. The lymphangioma reported in the present case seems to be the first lesion localized in the clivus.

Clinical Presentation: The patient presented with a history of diplopia and headache.

Imaging of pulsatile tinnitus: a review of 74 patients.

Objective: Our aim was to assess the effectiveness of imaging modalities in detecting the underlying pathologies in patients with pulsatile tinnitus.

Materials And Methods: Seventy-four patients with pulsatile tinnitus were radiologically evaluated. All patients except two are evaluated on a thin-section bone algorithm computed tomography scan covering the temporal bone and skull base, 14 patients with or without contrast-enhanced brain computed tomography, 7 patients with magnetic resonance imaging and magnetic resonance angiography, 5 patients with digital subtraction angiography, and 12 patients with Doppler ultrasonography.

Histopathologic changes in the lacrimal sac of dacryocystorhinostomy patients with and without silicone intubation.

Purpose: To evaluate the histopathologic impact of dacryocystorhinostomy (DCR) and silicone intubation on the lacrimal sac.

Methods: Biopsy materials were taken from the sac wall and fixed (primary biopsy) in 224 patients undergoing DCR between 1995 and 2003 in our institution. A total of 23 patients underwent a second operation as the result of restenosis, and a secondary biopsy specimen was taken from the sac wall.

A case of recurrent subcutaneous emphysema as a complication of endotracheal intubation.

We describe a case of subcutaneous cervicofacial emphysema in a 21-year-old man who had undergone endotracheal intubation while under general anesthesia 2 months earlier. The emphysema had arisen on the right side of the face and neck and extended to the right shoulder and the cubital fossa. The patient was hospitalized and treated with parenteral antibiotics and hyperbaric oxygen.