Polyethylene implants in nasal septal restoration.

Importance: Numerous techniques have been described to repair nasal septal perforations (SPs). However, many are technically challenging, with varying degrees of success.

Objective: To evaluate the use of polyethylene (Medpor; Porex Technologies) implants in the closure of nasal SPs.

Proteome resolution by two-dimensional gel electrophoresis varies with the commercial source of IPG strips.

By facilitating reproducible first dimension separations, commercial immobilized pH gradient (IPG) strips enable high throughput and high-resolution proteomic analyses using two-dimensional gel electrophoresis (2DE). Amersham, Biorad, Invitrogen, and Sigma all market linear pH 3-10 IPG strips. We have applied optimized 2DE protocols with both membrane and soluble brain protein extracts to critically evaluate all four products.