359 results match your criteria: "Mater Research Institute-University of Queensland[Affiliation]"

HUSH, retrotransposon RNA, you're NEXT to decay.

Mol Cell

May 2022

Mater Research Institute - University of Queensland, Woolloongabba, QLD, 4102, Australia; Queensland Brain Institute, University of Queensland, St. Lucia, QLD, 4067, Australia. Electronic address:

Garland et al. (2022) discover a physical and functional connection between the HUSH silencing complex and the NEXT nuclear RNA decay complex in mouse embryonic stem cells and conclude HUSH recruits NEXT to degrade prematurely terminated retrotransposon RNAs.

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Background: Few studies of health impacts of parental death focus on the developmental stage of adolescence and young adulthood and in particular, expected parental death from terminal illness.

Aim: To systematically review the health impact of expected parental death on adolescent and young adult children aged 15-25 years and provide a basis for further research and clinical practice.

Design: Systematic review registered on PROSPERO (CRD42017080282).

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Methylartist: tools for visualizing modified bases from nanopore sequence data.

Bioinformatics

May 2022

Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St Lucia, Australia.

Summary: Methylartist is a consolidated suite of tools for processing, visualizing and analysing nanopore-derived modified base calls. All detectable methylation types (e.g.

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Reduced chromatin accessibility correlates with resistance to Notch activation.

Nat Commun

April 2022

The Gurdon Institute and Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK.

The Notch signalling pathway is a master regulator of cell fate transitions in development and disease. In the brain, Notch promotes neural stem cell (NSC) proliferation, regulates neuronal migration and maturation and can act as an oncogene or tumour suppressor. How NOTCH and its transcription factor RBPJ activate distinct gene regulatory networks in closely related cell types in vivo remains to be determined.

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Improving the productivity of the allied health workforce is a global priority in response to the increasing incidence of chronic disease, associated healthcare costs, and insufficient workforce volume. Team-based healthcare, specifically allied health transdisciplinary teams, might be a solution to improve the utilization of workforce while maintaining high-quality and value-based healthcare. Allied health transdisciplinary teams can be a valuable solution in settings where care is delivered by different allied health professionals.

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Amino acid substitutions in the kinase domain of the human CSF1R gene are associated with autosomal dominant adult-onset leukoencephalopathy with axonal spheroids and pigmented glia (ALSP). To model the human disease, we created a disease-associated mutation (pGlu631Lys; E631K) in the mouse Csf1r locus. Homozygous mutation (Csf1rE631K/E631K) phenocopied the Csf1r knockout, with prenatal mortality or severe postnatal growth retardation and hydrocephalus.

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Genome-wide association studies (GWAS) have been highly informative in discovering disease-associated loci but are not designed to capture all structural variations in the human genome. Using long-read sequencing data, we discovered widespread structural variation within SINE-VNTR- (SVA) elements, a class of great ape-specific transposable elements with gene-regulatory roles, which represents a major source of structural variability in the human population. We highlight the presence of structurally variable SVAs (SV-SVAs) in neurological disease-associated loci, and we further associate SV-SVAs to disease-associated SNPs and differential gene expression using luciferase assays and expression quantitative trait loci data.

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Article Synopsis
  • Long-term macrolide therapy, such as azithromycin and erythromycin, is commonly used to prevent exacerbations in chronic respiratory diseases, but its effects on the oral microbiome and transmission of resistance are not well understood.
  • A study with healthy adults and their close contacts showed that while macrolide use increased resistance in their oropharyngeal streptococci, the overall microbiota composition remained largely unchanged.
  • No evidence was found for the transmission of macrolide resistance to close contacts, as their resistance gene levels did not show corresponding changes.
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Generation and network analysis of an RNA-seq transcriptional atlas for the rat.

NAR Genom Bioinform

March 2022

Mater Research Institute-University of Queensland, Translational Research Institute, 37 Kent St, Woolloongabba, QLD 4102, Australia.

The laboratory rat is an important model for biomedical research. To generate a comprehensive rat transcriptomic atlas, we curated and downloaded 7700 rat RNA-seq datasets from public repositories, downsampled them to a common depth and quantified expression. Data from 585 rat tissues and cells, averaged from each BioProject, can be visualized and queried at http://biogps.

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Relationship between placental elastography, maternal pre-pregnancy body mass index and gestational weight gain.

Placenta

April 2022

School of Clinical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, QLD, 4000, Australia; Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, QLD, 4000, Australia.

Introduction: Maternal obesity is a significant risk factor for poor pregnancy outcomes. Obesity is linked to abnormalities in placental tissue at term. The purpose of this study was to correlate changes in placental stiffness, measured via ultrasound elastography, with maternal pre-pregnancy body mass index and gestational weight gain.

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Inhibition of BMP signaling with LDN 193189 can influence bone marrow stromal cell fate but does not prevent hypertrophy during chondrogenesis.

Stem Cell Reports

March 2022

Centre for Biomedical Technologies, School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology (QUT), Brisbane, Australia; Translational Research Institute, Brisbane, Australia; Skeletal Biology Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA. Electronic address:

Bone morphogenetic protein (BMP) cascades are upregulated during bone marrow-derived stromal cell (BMSC) chondrogenesis, contributing to hypertrophy and preventing effective BMSC-mediated cartilage repair. Previous work demonstrated that a proprietary BMP inhibitor prevented BMSC hypertrophy, yielding stable cartilage tissue. Because of the significant therapeutic potential of a molecule capable of hypertrophy blockade, we evaluated the capacity of a commercially available BMP type I receptor inhibitor with similar properties, LDN 193189, to prevent BMSC hypertrophy.

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Introduction: Stillbirth is associated with significant physical, psychosocial and economic consequences for parents, families, wider society and the healthcare system. There is emerging momentum to design and evaluate interventions for care after stillbirth and in subsequent pregnancies. However, there is insufficient evidence to inform clinical practice compounded by inconsistent outcome reporting in research studies.

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When repairing cartilage defects a major challenge is achieving high-quality integration between the repair tissue and adjacent native cartilage. Matrix-rich cartilage is not easily remodeled, motivating several studies to trial enzyme treatment of the tissue interface to facilitate remodeling and integration. Studying and optimizing such processes is tedious, as well as potentially expensive, and thus simpler models are needed to evaluate the merits of enzyme treatment on cartilage tissue integration.

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Objective: To conduct a review of the literature on foetal volvulus with emphasis on prenatal imaging, pregnancy characteristics and clinical outcomes.

Methods: A review of all published cases of foetal volvulus diagnosed prenatally and indexed in Medline, EBSCOhost, CINAHL, SOCIndex and Healthy Policy Reference Centre. Studies without antenatal sonographic signs of foetal volvulus and without a postpartum surgical diagnosis were excluded.

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Background: Involving patients and consumers in research design helps ensure relevance for those affected by the problem being investigated and can optimize recruitment to clinical trials. This is particularly important when conducting research involving pregnant women.

Aims: We investigated women's motivations to participate in a hypothetical randomized control trial (RCT) of a third-trimester screening test for intrapartum fetal compromise (IFC) and adverse perinatal outcomes.

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Background: Queensland introduced a colour-coded cardiotocograph (CTG) classification system (green, blue, yellow and red) to complement the Royal Australian and New Zealand College of Obstetricians and Gynaecologists prose-based classification system of 'low, unlikely, maybe or likely' fetal compromise.

Aims: The aim of the study was to determine the clinical impact of the introduction of the colour-coded CTG classification system compared to the prose-based system. We hypothesised there would be no change in the rate of operative delivery for intrapartum fetal compromise (OD-IFC).

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The alarmins IL-33 and HMGB1 (high mobility group box 1) contribute to type 2 inflammation and asthma pathogenesis. To determine whether P2Y-R (P2Y receptor), a purinergic GPCR (G protein-coupled receptor) and risk allele for asthma, regulates the release of IL-33 and HMGB1. Bronchial biopsy specimens were obtained from healthy subjects and subjects with asthma.

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Article Synopsis
  • Conventional dendritic cells (cDC) are crucial for connecting the body's innate and adaptive immune responses and efficiently present antigens to T cells, promoting immune responses.
  • In this study, researchers developed new tools, including a monoclonal antibody to FLT3, to identify chicken cDCs, which are currently not well understood due to a lack of resources.
  • Their findings showed that chicken cDCs express specific surface markers like FLT3 and XCR1 and differ in expression of CSF1R and CSF2R compared to mammalian cDCs, paving the way for better understanding of chicken immunity.
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Background: Fetal supraventricular tachycardia is a relatively uncommon cardiac rhythm abnormality which is often associated with adverse perinatal outcomes if untreated. Although there are several treatment modalities and protocols in use globally, there is no consensus as to the most effective antiarrhythmic to manage this condition.

Aim: This study aimed to evaluate perinatal outcomes following prenatal maternal therapy for fetal supraventricular tachycardia.

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Functions of macrophage colony-stimulating factor (CSF1) in development, homeostasis, and tissue repair.

Semin Immunol

April 2021

Mater Research Institute-University of Queensland, Translational Research Institute, Brisbane, Queensland, Australia. Electronic address:

Macrophage colony-stimulating factor (CSF1) is the primary growth factor required for the control of monocyte and macrophage differentiation, survival, proliferation and renewal. Although the cDNAs encoding multiple isoforms of human CSF1 were cloned in the 1980s, and recombinant proteins were available for testing in humans, CSF1 has not yet found substantial clinical application. Here we present an overview of CSF1 biology, including evolution, regulation and functions of cell surface and secreted isoforms.

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Introduction And Aims: Dissemination and local adaptation of best practice models of care are often poorly achieved in knowledge translation processes. Understanding and documenting the iterative cycles of improvement can elucidate barriers, enablers and benefits of the process for future adoption and service integration improvements. This project examined the process of local adaptation for a third stage translation of a gestational diabetes dietetic model of care through collaboration with two Queensland (Australia) hospitals.

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Hopeful dying? The meanings and practice of hope in palliative care family meetings.

Soc Sci Med

December 2021

Department of Palliative Care, St Vincent's Private Hospital, Brisbane, Australia; Department of Palliative and Supportive Care Mater Health Services, Brisbane, Australia; Mater Research Institute - University of Queensland, Brisbane, Australia.

Hope can carry considerable allure for people facing imminent mortality and for those who care for them. Yet, how hope is variously and relationally (re)produced within end-of-life care settings, remains under-researched. In this study, we aimed to better understand hope as it circulates within palliative care, drawing on video recorded family meetings and pre- and post-meeting qualitative interviews, within two hospitals in Queensland, Australia.

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Article Synopsis
  • Selective SGLT2 inhibition can lower the risk of worsening heart failure and cardiovascular death, regardless of whether patients have diabetes.
  • This study explored the impact of dual SGLT1/2 inhibition using sotagliflozin on heart conditions in normal diet and high-fat diet mice experiencing cardiac pressure overload.
  • Results showed that sotagliflozin improved cardiac health in normal diet mice but had limited effectiveness in high-fat diet mice due to impaired kidney function and lower drug response.
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Objective: Adoptive regulatory T cell (Treg) therapy is being trialled for the treatment of different autoimmune disorders, including inflammatory bowel diseases (IBD). In-depth understanding of the biological variability of Treg in the human blood may be required to improve IBD immune monitoring and treatment strategies.

Methods: Through a combination of quantitative proteomic, multiparametric flow cytometry, RNA-sequencing data analysis and functional assays on Treg enriched from the blood of ulcerative colitis (UC) patients and healthy controls, we investigated the association between CD49f expression, Treg phenotype and function, and UC disease activity.

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