Reducing severe intraventricular haemorrhage rates in <26-week preterm infants with bedside assessment and care bundle implementation.

Aim: To assess staff adherence to a 'Preterm Brain Injury Prevention Bundle', and its effectiveness in reducing severe intraventricular haemorrhage (IVH) rates and risk factors in extremely preterm infants born at <26 weeks' gestation.

Methods: Adherence to the bundle was assessed using a novel bedside assessment tool, with immediate feedback to bedside staff post-assessment. Data on IVH rates and associated risk factors were stratified by IVH severity, and compared between pre- and post-bundle implementation.

The budding yeast Fkh1 Forkhead associated (FHA) domain promotes a G1-chromatin state and the activity of chromosomal DNA replication origins.

In Saccharomyces cerevisiae, the forkhead (Fkh) transcription factor Fkh1 (forkhead homolog) enhances the activity of many DNA replication origins that act in early S-phase (early origins). Current models posit that Fkh1 acts directly to promote these origins' activity by binding to origin-adjacent Fkh1 binding sites (FKH sites). However, the post-DNA binding functions that Fkh1 uses to promote early origin activity are poorly understood.

Safer Type 1 Diabetes Care at Home: SEIPS-based Process Mapping with Parents and Clinicians.

Introduction: The limited data indicate that pediatric medical errors in the outpatient setting, including at home, are common. This study is the first step of our to address medication errors and treatment delays among children with T1D in the outpatient setting. We aimed to identify failures and potential solutions associated with medication errors and treatment delays among outpatient children with T1D.

The budding yeast Fkh1 Forkhead associated (FHA) domain promoted a G1-chromatin state and the activity of chromosomal DNA replication origins.

In , the forkhead (Fkh) transcription factor Fkh1 (forkhead homolog) enhances the activity of many DNA replication origins that act in early S-phase (early origins). Current models posit that Fkh1 acts directly to promote these origins' activity by binding to origin-adjacent Fkh1 binding sites (FKH sites). However, the post-DNA binding functions that Fkh1 uses to promote early origin activity are poorly understood.

Yeast ORC sumoylation status fine-tunes origin licensing.

Sumoylation is emerging as a posttranslation modification important for regulating chromosome duplication and stability. The origin recognition complex (ORC) that directs DNA replication initiation by loading the MCM replicative helicase onto origins is sumoylated in both yeast and human cells. However, the biological consequences of ORC sumoylation are unclear.

The Fkh1 Forkhead associated domain promotes ORC binding to a subset of DNA replication origins in budding yeast.

The pioneer event in eukaryotic DNA replication is binding of chromosomal DNA by the origin recognitioncomplex (ORC). The ORC-DNA complex directs the formation of origins, the specific chromosomal regions where DNA synthesis initiates. In all eukaryotes, incompletely understood features of chromatin promote ORC-DNA binding.

Why our undergraduate nursing programs need oncology content: Reflections of a nursing instructor.

Undergraduate nursing education programs can play an integral role in developing the next generation of nurses by incorporating more oncology content to meet the needs of the increasing numbers of patients diagnosed with cancer. While oncology nursing is a specialized area of practice, student nurses and new graduates will come in contact with patients who have been diagnosed with cancer whether they work on a specialized unit or not. Increasing the amount of oncology content provided in undergraduate nursing programs can help to encourage interest in this specialty area and improve the ability of new graduates to care for this patient population.

Sir2 mitigates an intrinsic imbalance in origin licensing efficiency between early- and late-replicating euchromatin.

A eukaryotic chromosome relies on the function of multiple spatially distributed DNA replication origins for its stable inheritance. The spatial location of an origin is determined by the chromosomal position of an MCM complex, the inactive form of the DNA replicative helicase that is assembled onto DNA in G1-phase (also known as origin licensing). While the biochemistry of origin licensing is understood, the mechanisms that promote an adequate spatial distribution of MCM complexes across chromosomes are not.

Tissue-Specific DNA Replication Defects in Caused by a Meier-Gorlin Syndrome Mutation in Orc4.

Meier-Gorlin syndrome is a rare recessive disorder characterized by a number of distinct tissue-specific developmental defects. Genes encoding members of the origin recognition complex (ORC) and additional proteins essential for DNA replication (CDC6, CDT1, GMNN, CDC45, MCM5, and DONSON) are mutated in individuals diagnosed with MGS. The essential role of ORC is to license origins during the G1 phase of the cell cycle, but ORC has also been implicated in several nonreplicative functions.

A single KH domain in Bicaudal-C links mRNA binding and translational repression functions to maternal development.

Bicaudal-C (Bicc1) is a conserved RNA-binding protein that represses the translation of selected mRNAs to control development. In embryos, Bicc1 binds and represses specific maternal mRNAs to control anterior-posterior cell fates. However, it is not known how Bicc1 binds its RNA targets or how binding affects Bicc1-dependent embryogenesis.

Yeast heterochromatin regulators Sir2 and Sir3 act directly at euchromatic DNA replication origins.

Most active DNA replication origins are found within euchromatin, while origins within heterochromatin are often inactive or inhibited. In yeast, origin activity within heterochromatin is negatively controlled by the histone H4K16 deacetylase, Sir2, and at some heterochromatic loci also by the nucleosome binding protein, Sir3. The prevailing view has been that direct functions of Sir2 and Sir3 are confined to heterochromatin.

General method for rapid purification of native chromatin fragments.

Biochemical, proteomic, and epigenetic studies of chromatin rely on the ability to efficiently isolate native nucleosomes in high yield and purity. However, isolation of native chromatin suitable for many downstream experiments remains a challenging task. This is especially true for the budding yeast , which continues to serve as an important model organism for the study of chromatin structure and function.

Controlling the Messenger: Regulated Translation of Maternal mRNAs in Xenopus laevis Development.

The selective translation of maternal mRNAs encoding cell-fate determinants drives the earliest decisions of embryogenesis that establish the vertebrate body plan. This chapter will discuss studies in Xenopus laevis that provide insights into mechanisms underlying this translational control. Xenopus has been a powerful model organism for many discoveries relevant to the translational control of maternal mRNAs because of the large size of its oocytes and eggs that allow for microinjection of molecules and the relative ease of manipulating the oocyte to egg transition (maturation) and fertilization in culture.

Acute gastrointestinal compromise in neonates with congenital diaphragmatic hernia prior to repair.

Background: Congenital diaphragmatic hernia (CDH) affects 1 in 3000 live births. Modern management strategies include delayed repair of the diaphragm to permit pre-operative optimization of cardiorespiratory status. We describe a cohort of neonates in whom early emergency operative intervention was required for potentially fatal intestinal compromise.

Binding of the Fkh1 Forkhead Associated Domain to a Phosphopeptide within the Mph1 DNA Helicase Regulates Mating-Type Switching in Budding Yeast.

The Saccharomyces cerevisiae Fkh1 protein has roles in cell-cycle regulated transcription as well as a transcription-independent role in recombination donor preference during mating-type switching. The conserved FHA domain of Fkh1 regulates donor preference by juxtaposing two distant regions on chromosome III to promote their recombination. A model posits that this Fkh1-mediated long-range chromosomal juxtaposition requires an interaction between the FHA domain and a partner protein(s), but to date no relevant partner has been described.

High Throughput Analyses of Budding Yeast ARSs Reveal New DNA Elements Capable of Conferring Centromere-Independent Plasmid Propagation.

The ability of plasmids to propagate in Saccharomyces cerevisiae has been instrumental in defining eukaryotic chromosomal control elements. Stable propagation demands both plasmid replication, which requires a chromosomal replication origin (i.e.

Fkh1 and Fkh2 bind multiple chromosomal elements in the S. cerevisiae genome with distinct specificities and cell cycle dynamics.

Forkhead box (FOX) transcription factors regulate a wide variety of cellular functions in higher eukaryotes, including cell cycle control and developmental regulation. In Saccharomyces cerevisiae, Forkhead proteins Fkh1 and Fkh2 perform analogous functions, regulating genes involved in cell cycle control, while also regulating mating-type silencing and switching involved in gamete development. Recently, we revealed a novel role for Fkh1 and Fkh2 in the regulation of replication origin initiation timing, which, like donor preference in mating-type switching, appears to involve long-range chromosomal interactions, suggesting roles for Fkh1 and Fkh2 in chromatin architecture and organization.

Pigtailed macaques as a model to study long-term safety of lentivirus vector-mediated gene therapy for hemoglobinopathies.

Safely achieving long-term engraftment of genetically modified hematopoietic stem cells (HSCs) that maintain therapeutic transgene expression is the benchmark for successful application of gene therapy for hemoglobinopathies. We used the pigtailed macaque HSC transplantation model to ascertain the long-term safety and stability of a γ-globin lentivirus vector. We observed stable gene-modified cells and fetal hemoglobin expression for 3 years.

A Link between ORC-origin binding mechanisms and origin activation time revealed in budding yeast.

Eukaryotic DNA replication origins are selected in G1-phase when the origin recognition complex (ORC) binds chromosomal positions and triggers molecular events culminating in the initiation of DNA replication (a.k.a.

Consumer's perceptions of Recovery-oriented mental health services: an Australian case-study analysis.

Recovery approaches to health care now feature in the mental health policies of many Western countries. There are, however, continuing challenges to the operationalization of these approaches. This study aimed to identify the nature of these challenges for a public mental health service organization located in a major urban center in southeastern Australia, where Recovery-oriented services have been implemented; and to develop recommendations to address these challenges.

The yeast environmental stress response regulates mutagenesis induced by proteotoxic stress.

Conditions of chronic stress are associated with genetic instability in many organisms, but the roles of stress responses in mutagenesis have so far been elucidated only in bacteria. Here, we present data demonstrating that the environmental stress response (ESR) in yeast functions in mutagenesis induced by proteotoxic stress. We show that the drug canavanine causes proteotoxic stress, activates the ESR, and induces mutagenesis at several loci in an ESR-dependent manner.

Sensory processing issues in young children presenting to an outpatient feeding clinic.

Objectives: The aim of the study was to describe the relation between sensory issues and medical complexity in a series of patients presenting to an outpatient multidisciplinary feeding team for evaluation, by a standardized measure of sensory-processing abilities.

Methods: A retrospective chart review of all of the patients seen from 2004 to 2009 on 2 key variables: medical diagnostic category and short sensory profile (SSP) score.

Results: On the SSP, 67.