Selection for robust metabolism in domesticated yeasts is driven by adaptation to Hsp90 stress.

Protein folding both promotes and constrains adaptive evolution. We uncover this surprising duality in the role of the protein-folding chaperone heat shock protein 90 (Hsp90) in maintaining the integrity of yeast metabolism amid proteotoxic stressors within industrial domestication niches. Ethanol disrupts critical Hsp90-dependent metabolic pathways and exerts strong selective pressure for redundant duplications of key genes within these pathways, yielding the classical genomic signatures of beer and bread domestication.

Ethanol Drives Evolution of Hsp90-Dependent Robustness by Redundancy in Yeast Domestication.

Protein folding promotes and constrains adaptive evolution. We uncover this surprising duality in the role the protein-folding chaperone Hsp90 plays in mediating the interplay between proteome and the genome which acts to maintain the integrity of yeast metabolism in the face of proteotoxic stressors in anthropic niches. Of great industrial relevance, ethanol concentrations generated by fermentation in the making of beer and bread disrupt critical Hsp90-dependent nodes of metabolism and exert strong selective pressure for increased copy number of key genes encoding components of these nodes, yielding the classical genetic signatures of beer and bread domestication.

Secure smartphone application-based text messaging in emergency department, a system implementation and review of literature.

Background: The utilization of smartphone-based technology and applications to streamline patient care provides an exciting opportunity for quality improvement research. As traditional communication methods such as paging have repeatedly been shown to be susceptible to errors and inefficiency that can delay patient care, smartphones continue to be investigated as means of improving inter-hospital communication and patient outcomes.

Methods And Materials: We conducted a systematic literature review in PubMed, MEDLINE using the keywords Health Insurance Portability and Accountability Act (HIPAA) Compliant Group Messaging (HCGM), text paging communication, secure hospital text message, HIPAA text message, and secure hospital communication.

Emergency department approach to QTc prolongation.

QTc prolongation has been associated with increased risk of developing ventricular tachydysrhythmias, particularly Torsades de Pointes (TdP). QTc prolongation is influenced by many factors including congenital causes, heart rate, metabolic imbalances, and pharmacotherapy. Several commonly used medications in the emergency department (ED), such as antipsychotics and antiemetics, are known to prolong the QT interval.