1,512 research outputs found

    HEN1 recognizes 21-24 nt small RNA duplexes and deposits a methyl group onto the 2' OH of the 3' terminal nucleotide.

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    microRNAs (miRNAs) and small interfering RNAs (siRNAs) in plants bear a methyl group on the ribose of the 3' terminal nucleotide. We showed previously that the methylation of miRNAs and siRNAs requires the protein HEN1 in vivo and that purified HEN1 protein methylates miRNA/miRNA* duplexes in vitro. In this study, we show that HEN1 methylates both miRNA/miRNA* and siRNA/siRNA* duplexes in vitro with a preference for 21-24 nt RNA duplexes with 2 nt overhangs. We also demonstrate that HEN1 deposits the methyl group on to the 2' OH of the 3' terminal nucleotide. Among various modifications that can occur on the ribose of the terminal nucleotide, such as 2'-deoxy, 3'-deoxy, 2'-O-methyl and 3'-O-methyl, only 2'-O-methyl on a small RNA inhibits the activity of yeast poly(A) polymerase (PAP). These findings indicate that HEN1 specifically methylates miRNAs and siRNAs and implicate the importance of the 2'-O-methyl group in the biology of RNA silencing

    Voices of chief nursing executives informing a doctor of nursing practice program

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    The purpose of this article is to describe the business case framework used to guide doctor of nursing practice (DNP) program enhancements and to discuss methods used to gain chief nurse executives' (CNEs) perspectives for desired curricular and experiential content for doctor of nursing practice nurses in health care system executive roles. Principal results of CNE interview responses were closely aligned to the knowledge, skills and/or attitudes identified by the national leadership organizations. Major conclusions of this article are that curriculum change should include increased emphasis on leadership, implementation science, and translation of evidence into practice methods. Business, information and technology management, policy, and health care law content would also need to be re-balanced to facilitate DNP graduates' health care system level practice

    Lessons Learned: Nurses’ Experiences with Errors in Nursing

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    Background Health care organizations seek to maximize the reporting of medical errors to improve patient safety. Purpose This study explored licensed nurses' decision-making with regard to reporting medical errors. Methods Grounded theory methods guided the study. Thirty nurses from adult intensive care units were interviewed, and qualitative analysis was used to develop a theoretical framework based on their narratives. Discussion The theoretical model was titled “Learning Lessons from the Error.” The concept of learning lessons was central to the theoretical model. The model included five stages: Being Off-Kilter, Living the Error, Reporting or Telling About the Error, Living the Aftermath, and Lurking in Your Mind. Conclusion This study illuminates the unique experiences of licensed nurses who have made medical errors. The findings can inform initiatives to improve error reporting and to support nurses who have made errors

    Highly efficient 5\u27 capping of mitochondrial RNA with NAD+ and NADH by yeast and human mitochondrial RNA polymerase

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    Bacterial and eukaryotic nuclear RNA polymerases (RNAPs) cap RNA with the oxidized and reduced forms of the metabolic effector nicotinamide adenine dinucleotide, NAD+ and NADH, using NAD+ and NADH as non-canonical initiating nucleotides for transcription initiation. Here, we show that mitochondrial RNAPs (mtRNAPs) cap RNA with NAD+ and NADH, and do so more efficiently than nuclear RNAPs. Direct quantitation of NAD+- and NADH-capped RNA demonstrates remarkably high levels of capping in vivo: up to ~60% NAD+ and NADH capping of yeast mitochondrial transcripts, and up to ~15% NAD+ capping of human mitochondrial transcripts. The capping efficiency is determined by promoter sequence at, and upstream of, the transcription start site and, in yeast and human cells, by intracellular NAD+ and NADH levels. Our findings indicate mtRNAPs serve as both sensors and actuators in coupling cellular metabolism to mitochondrial transcriptional outputs, sensing NAD+ and NADH levels and adjusting transcriptional outputs accordingly. © 2018, Bird et al

    Outcomes of Adding Patient and Family Engagement Education to Fall Prevention Bundled Interventions.

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    Nurses strive to reduce risk and ensure patient safety from falls in health care systems. Patients and their families are able to take a more active role in reducing falls. The focus of this article is on the use of bundled fall prevention interventions highlighted by a patient/family engagement educational video. The implementation of this quality improvement intervention across 2 different patient populations was successful in achieving unit benchmarks

    “Anybody on this list that you're more worried about?” Qualitative analysis exploring the functions of questions during end of shift handoffs

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    Background Shift change handoffs are known to be a point of vulnerability in the quality, safety and outcomes of healthcare. Despite numerous efforts to improve handoff reliability, few interventions have produced lasting change. Although the opportunity to ask questions during patient handoff has been required by some regulatory bodies, the function of questions during handoff has been less well explored and understood. Objective To investigate questions and the functions they serve in nursing and medicine handoffs. Research design Qualitative thematic analysis based on audio recordings of nurse-to-nurse, medical resident-to-resident and surgical intern-to-intern handoffs. Subjects Twenty-seven nurse handoff dyads and 18 medical resident and surgical intern handoff dyads at one VA Medical Center. Results Our analysis revealed that the vast majority of questions were asked by the Incoming Providers. Although topics varied widely, the bulk of Incoming Provider questions requested information that would best help them understand individual patient conditions and plan accordingly. Other question types sought consensus on clinical reasoning or framing and alignment between the two professionals. Conclusions Handoffs are a type of socially constructed work. Questions emerge with some frequency in virtually all handoffs but not in a linear or predictable way. Instead, they arise in the moment, as necessary, and without preplanning. A checklist cannot model this process element because it is a static memory aid and questions occur in a relational context that is emergent. Studying the different functions of questions during end of shift handoffs provides insights into the interface between the technical context in which information is transferred and the social context in which meaning is created

    Inhibiting the oncogenic translation program is an effective therapeutic strategy in multiple myeloma

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    Published in final edited form as: Sci Transl Med. 2017 May 10; 9(389). https://doi.org/10.1126/scitranslmed.aal2668.Multiple myeloma (MM) is a frequently incurable hematological cancer in which overactivity of MYC plays a central role, notably through up-regulation of ribosome biogenesis and translation. To better understand the oncogenic program driven by MYC and investigate its potential as a therapeutic target, we screened a chemically diverse small-molecule library for anti-MM activity. The most potent hits identified were rocaglate scaffold inhibitors of translation initiation. Expression profiling of MM cells revealed reversion of the oncogenic MYC-driven transcriptional program by CMLD010509, the most promising rocaglate. Proteome-wide reversion correlated with selective depletion of short-lived proteins that are key to MM growth and survival, most notably MYC, MDM2, CCND1, MAF, and MCL-1. The efficacy of CMLD010509 in mouse models of MM confirmed the therapeutic relevance of these findings in vivo and supports the feasibility of targeting the oncogenic MYC-driven translation program in MM with rocaglates

    The Jews in England during the 13th century

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    M.A. University of Missouri 1907"Approved by N.M. Trenholm, Prof. of History and director of this research."Typescript.There has been much difference of opinion as to when the Jews first appeared in England. Most historians say they were brought over from the Continent by William the Conqueror upon pecuniary consideration. But there are some who contend that Jews were in England before the Conquest. This evidence is none too convincing on either side, but it seemingly proves that Jews were residents of England earlier than the Norman invasion. But their number was no doubt small, and their influence slight, which, coupled with the fact that such great numbers are known to have come over with William, has led writers to infer that the Conqueror brought the first Jews into England.Includes bibliographical reference

    A Critique of Functional Services In Relation To The Central Task Of Evangelism

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    https://place.asburyseminary.edu/firstfruitspapers/1114/thumbnail.jp
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