Eukaryotic organisms have dynamic genomes, with transposable elements (TEs) as a major contributing factor. Although the large autonomous TEs can significantly shape genomic structures during evolution, genomes often harbor more miniature nonautonomous TEs that can infest genomic niches where large TEs are rare. In spite of their cut-and-paste transposition mechanisms that do not inherently favor copy number increase, miniature inverted-repeat transposable elements (MITEs) are abundant in eukaryotic genomes and exist in high copy numbers. Based on the large number of MITE families revealed in previous studies, accurate annotation of MITEs, particularly in newly sequenced genomes, will identify more genomes highly rich in these elements. Novel families identified from these analyses, together with the currently known families, will further deepen our understanding of the origins, transposase sources, and dramatic amplification of these elements.

BackgroundDetection, monitoring and treatment of adverse drug reactions (ADRs) are paramount to patient safety. The use of a comprehensive electronic health record (EHR) system has the potential to address inadequacies in ADR documentation and to facilitate ADR reporting to health agencies. However, effective methods to maintain the quality of documented ADRs within an EHR have not been well studied.ObjectiveTo evaluate the accuracy and effectiveness of ADR documentation transfer throughout the implementation of a comprehensive EHR system.MethodsRetrospective analysis of ADR documentation at a tertiary care pediatric hospital between January 2013 and June 2014. ADRs documented in the newly implemented ambulatory EHR, pharmacy system and hybrid health record system were extracted. Documentation inconsistencies and processes for managing ADR documentation within the EHR were reviewed.ResultsA total of 115 patients with 260 unique ADRs were identified. Only 155 (60 %) of the identified ADRs were found in the ambulatory EHR system. The remaining 105 ADRs (40 %) were missing from the EHR when it was compared with the other systems. Seventy-two patients (63 %) returned for a follow-up visit, and each had their ADR documentation reviewed in the ambulatory EHR. Following the visit, 44 % of these ambulatory EHR records still included incorrect information.ConclusionsWe identified discrepancies in ADR documentation within hospital systems, which need to be addressed as healthcare institutions transition to EHRs. Processes related to the transfer of ADR information into the EHR should be clearly defined. To improve the quality of ADR documentation, steps to force complete and continual ADR verification should be introduced at early stages of implementation of a new EHR, and all responsible providers should play a role.Electronic supplementary materialThe online version of this article (doi:10.1007/s40801-016-0071-8) contains supplementary material, which is available to authorized users.

Miniature inverted repeat transposable elements (MITEs) lack protein coding capacity and often share very limited sequence similarity with potential autonomous elements. Their capability of efficient transposition and dramatic amplification led to the proposition that MITEs are an untapped rich source of materials for transposable element (TE) based genetic tools. To test the concept of using MITE sequence in gene transfer, a rice Stowaway MITE previously shown to excise efficiently in yeast was engineered to carry cargo genes (neo and gfp) for delivery into the budding yeast genome. Efficient excision of the cargo gene cassettes was observed even though the excision frequency generally decreases with the increase of the cargo sizes. Excised elements insert into new genomic loci efficiently, with about 65% of the obtained insertion sites located in genes. Elements at the primary insertion sites can be remobilized, frequently resulting in copy number increase of the element. Surprisingly, the orientation of a cargo gene (neo) on a construct bearing dual reporter genes (gfp and neo) was found to have a dramatic effect on transposition frequency. These results demonstrated the concept that MITE sequences can be useful in engineering genetic tools to deliver cargo genes into eukaryotic genomes.