Toxin-induced necroptosis is a major mechanism of Staphylococcus aureus lung damage.

Staphylococcus aureus USA300 strains cause a highly inflammatory necrotizing pneumonia. The virulence of this strain has been attributed to its expression of multiple toxins that have diverse targets including ADAM10, NLRP3 and CD11b. We demonstrate that induction of necroptosis through RIP1/RIP3/MLKL signaling is a major consequence of S.

Staphylococcus aureus protein A mediates invasion across airway epithelial cells through activation of RhoA GTPase signaling and proteolytic activity.

Staphyococcus aureus and especially the epidemic methicillin-resistant S. aureus strains cause severe necrotizing pneumonia. The mechanisms whereby these organisms invade across the mucosal epithelial barrier to initiate invasive infection are not well understood.

Differences in diagnosis and treatment using telemedicine versus in-person evaluation of acute illness.

Objective: We designed a telemedicine model for diagnosis of common, acute illness to compare telemedicine and in-person evaluations on reproducibility of diagnosis and treatment.

Methods: Subjects were seen by usual physicians in ambulatory settings. Subjects were also evaluated separately by experienced general pediatricians (study physicians), either in person or via telemedicine, based on random assignment.

Effectiveness of telemedicine in replacing in-person evaluation for acute childhood illness in office settings.

For the purpose of reducing the social and economic burden imposed by common acute childhood illness, we developed a telemedicine model to enable diagnosis and treatment of illness episodes presenting in pediatric office settings. The study objective was to assess the effectiveness of this telemedicine model in replacing illness visits to traditional healthcare settings and to compare effectiveness of this model (base model) with that of alternative models including simple office laboratory tests and albuterol administration (simple model) or a complete complement of tests and procedures (extended model). Eligible subjects had an acute problem and were seen in the pediatric primary care practice or pediatric emergency department of the University of Rochester Medical Center.