Impact of a rural interprofessional health professions summer preceptorship educational experience on participants' attitudes and knowledge.

Background: A six-week rural interprofessional health professions summer preceptorship provided an interprofessional training experience (IPE) for upper level baccalaureate and post-baccalaureate/graduate level health professions students in Dixon, Illinois, USA. There are three distinct yet complementary components of this forty hours per week summer preceptorship: Numerous interprofessional clinical shadowing experiences, a community service-learning project carried out as a team and weekly classroom sessions. This study assesses knowledge and attitude changes about IPE among students who participated in this Rural Interprofessional Health Professions Summer Preceptorship between 2006 and 2011.

The enhancement of guided tissue regeneration by altering root surface topography.

The periodontal fenestration model was used in four young mongrel dogs to evaluate the ability of vertical root surface grooving to enhance and direct cell outgrowth and subsequent formation of new attachment at 2- and 6-week healing intervals. In each dog, three fenestration wounds were made on each side of the mandible. On the control side, the roots were planed to dentin, a barrier membrane was sutured over the wound, and the flaps were replaced over the membrane.

Controlled tissue expansion with guided bone regeneration.

Guided tissue regeneration techniques are used to create new bone around implant defects and to augment edentulous ridges prior to implant placement. A new technique, tested successfully in baboons, utilizes soft tissue expanders prior to implant placement and tissue regeneration procedures.

The use of collagen membrane barriers in conjunction with combined demineralized bone-collagen gel implants in human infrabony defects.

The present study evaluated the clinical efficacy of a combined graft of autolysed antigen-extracted allogeneic (AAA) bone and microfibrillar collagen (Zyderm) covered with a resorbable collagen membrane in human infrabony defects. The results were compared at 1 year with debrided controls, AAA bone grafts alone, combined AAA bone-collagen grafts (without membrane), and debrided defects covered only with collagen membranes. Ten adult patients having moderate periodontitis and one or more radiographically detectable angular defects probing 6 mm to 7 mm in each quadrant were included.

Sequence analysis of bovine lens aldose reductase.

The covalent structure of bovine lens aldose reductase (alditol-NADP+ oxidoreductase, EC 1.1.1.

Alginate production by the mucoid Pseudomonas aeruginosa associated with cystic fibrosis.

Pseudomonas aeruginosa is an important human pathogen. Mucoid, alginate producing strains are specifically selected in the lungs of patients with cystic fibrosis. Advances in our understanding of the biochemistry, genetics and molecular biology of alginate synthesis in these organisms is discussed.

Characterization of the Pseudomonas aeruginosa alginate (alg) gene region II.

Pseudomonas aeruginosa region II alginate genes are involved in the biosynthesis of the uronic acid containing exopolysaccharide, alginic acid. We have subcloned and overexpressed various DNA fragments contained within region II in an attempt to further characterize and more precisely localize the genes involved in alginate production. Overexpression of the genes controlling alginate biosynthesis within region II was accomplished by placing various cloned restriction fragments under the transcriptional control of the hybrid trp-lac (tac) promoter, and plasmid encoded proteins were examined in a maxicell expression system.