181,756 results match your criteria: "The University of Melbourne; frenchc@unimelb.edu.au.[Affiliation]"

Rebooting artificial intelligence for health.

PLOS Glob Public Health

January 2025

Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Boston, Massachusetts, United States of America.

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Objective: Wearable technology has potential benefits for clinical measurement with children who have neurodevelopmental disorders (NDDs). However, this cohort may experience sensory processing disorder, behavioral dysregulation, and cognitive challenges. For effective and considerate implementation, the experiences and views of parents of children with NDDs on this topic need in-depth investigation.

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Jasmonic acid (JA), ethylene (ET) and salicylic acid (SA) are the three major phytohormones coordinating plant defense responses, and all three are implicated in the defense against the fungal pathogen Fusarium oxysporum. However, their distinct modes of action and possible interactions remain unknown, in part because all spatial information on their activity is lacking. Here, we set out to probe this spatial aspect of plant immunity by using live-microscopy with newly developed fluorescence-based transcriptional reporter lines.

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Background: The bird cherry-oat aphid, Rhopalosiphum padi, is a major pest of agriculture due to its ability to directly damage crops and transmit plant viruses. As industries move away from chemical pest control, there is interest in exploring new options to suppress the impact of this pest.

Results: We describe the production of a transinfected line of R.

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Although electrostatic catalysis can enhance the kinetics and selectivity of reactions to produce greener synthetic processes, the highly directional nature of electrostatic interactions has limited widespread application. In this study, the influence of oriented electric fields (OEF) on radical addition and atom abstraction reactions are systematically explored with ion-trap mass spectrometry using structurally diverse distonic radical ions that maintain spatially separated charge and radical moieties. When installed on rigid molecular scaffolds, charged functional groups lock the magnitude and orientation of the internal electric field with respect to the radical site, creating an OEF which tunes the reactivity across the set of gas-phase carbon-centred radical reactions.

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Amidst the COVID-19 pandemic, telehealth (TH) has gained increasing relevance in colorectal patient care, prompting an audit of the TH clinic at a tertiary colorectal unit. This study evaluated telephone-based consultations' clinical efficacy and diagnostic thresholds for new lower gastrointestinal (LGI) bleeding referrals. We conducted a quality assurance audit of the per rectal (PR) bleeding TH clinic at Northern Hospital Victoria, evaluating new LGI bleeding referrals.

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Introduction: Melanopsin is a photopigment with roles in mediating sleep and circadian-related processes, which are often disrupted in Alzheimer's disease (AD). Melanopsin also impacts cognition and synaptogenesis. This study investigated the associations between melanopsin genetic variants, sleep, and markers of brain health.

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Tail Tales: How Ecological Context Mediates Signal Effectiveness in a Lizard.

Integr Zool

January 2025

Animal Behaviour Group, Department of Environment and Genetics, La Trobe University, Melbourne, Victoria, Australia.

Animal signals are complex, comprising multiple components influenced by ecological factors and viewing perspectives that together impact their overall effectiveness. Our study explores how these factors affect the efficacy of multi-component signals in the Qinghai toad-headed agama, Phrynocephalus vlangalii. Using 3D animations, we simulated natural environments to evaluate how tail coiling and tail lashing-two primary tail displays-vary in effectiveness from both conspecific and predator perspectives under different ecological conditions.

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Background: In Australia, during the COVID-19 pandemic many routine pregnancy visits were replaced by telehealth, along with changes to routine screening and visitor policies. Many providers plan to continue these changes.

Aims: Describe changes to maternity care provision across the state of Victoria during the COVID-19 pandemic.

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Large-scale and long-term wildlife research and monitoring using camera traps: a continental synthesis.

Biol Rev Camb Philos Soc

January 2025

Wildlife Observatory of Australia (WildObs), Queensland Cyber Infrastructure Foundation (QCIF), Brisbane, Queensland, 4072, Australia.

Camera traps are widely used in wildlife research and monitoring, so it is imperative to understand their strengths, limitations, and potential for increasing impact. We investigated a decade of use of wildlife cameras (2012-2022) with a case study on Australian terrestrial vertebrates using a multifaceted approach. We (i) synthesised information from a literature review; (ii) conducted an online questionnaire of 132 professionals; (iii) hosted an in-person workshop of 28 leading experts representing academia, non-governmental organisations (NGOs), and government; and (iv) mapped camera trap usage based on all sources.

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Differential recruitment drives pathogen-mediated competition between species in an amphibian chytridiomycosis system.

Ecol Appl

January 2025

Centre for Planetary Health and Food Security, and School of Environment and Science, Griffith University, Southport, Queensland, Australia.

Pathogens that infect multiple host species have an increased capacity to cause extinctions through parasite-mediated apparent competition. Given unprecedented and continuing losses of biodiversity due to Batrachochytrium dendrobatidis (Bd), the causative fungus of the amphibian skin disease chytridiomycosis, a robust understanding of the mechanisms driving cross-species infection dynamics is essential. Here, we used stage-structured, susceptible-infected compartmental models to explore drivers of Bd-mediated apparent competition between two sympatric amphibians, the critically endangered Litoria spenceri and the non-threatened Litoria lesueurii.

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Human nasal epithelium (HNE) organoid models of SARS-CoV-2 infection were adopted globally during the COVID-19 pandemic once it was recognized that the Vero cell line commonly used by virologists did not recapitulate human infection. However, the widespread use of HNE organoid infection models was hindered by the high cost of media and consumables, and the inherent limitation of basal cells as a scalable continuous source of cells. The human Calu-3 cell line, generated from a lung adenocarcinoma, was shown to largely recapitulate infection of the human epithelium and to preserve the SARS-CoV-2 genomic fidelity.

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CLN2 and CLN3 diseases, the most common types of Batten disease (also known as neuronal ceroid lipofuscinosis), are childhood dementias associated with progressive loss of speech, language and feeding skills. Here we delineate speech, language, non-verbal communication and feeding phenotypes in 33 individuals (19 females) with a median age of 9.5 years (range 3-28 years); 16 had CLN2 and 17 CLN3 disease; 8/15 (53%) participants with CLN2 and 8/17 (47%) participants with CLN3 disease had speech and language impairments prior to genetic diagnosis.

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Background: Sepsis-associated acute kidney injury (SA-AKI) is common among patients admitted to the intensive care unit (ICU) with sepsis.

Aims: This study aimed to demonstrate an association between an episode of SA-AKI and progression to dialysis dependence, with a view to identifying a cohort who may be suitable for intensive nephrology follow-up.

Methods: Design: Retrospective data-linkage cohort study.

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Objectives: To determine the correlation between the ultrasound finding of cystic spaces in the endometrium and endometrial hyperplasia or cancer.

Materials And Methods: We performed a retrospective cohort study at a tertiary teaching hospital in Victoria, Australia, between January 2014 and December 2016. Patients who had a tertiary ultrasound where the endometrium was assessed and underwent endometrial sampling in the subsequent year were included.

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About one-third of Australians use the services of complementary and alternative medicine (CAM); but debate about the role of CAM in public healthcare is vociferous. Despite this, the mechanisms driving CAM healthcare choices are not well understood, especially in rural Australia. From 2016 to 2018, 2,679 persons from the Goulburn Valley, northern Victoria, were surveyed, 28% (755) of whom reporting visiting CAM practitioners.

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Objectives: To examine demographics and in-hospital outcomes for patients admitted to Australian intensive care units (ICUs) following cystectomy of the urinary bladder. Additionally, to compare outcomes between metropolitan and rural hospitals.

Patients And Methods: A retrospective cohort analysis was undertaken of all adult patients admitted to participating Australian ICUs (Australian and New Zealand Intensive Care Society Adult Patient Database) following cystectomy/cystoprostatectomy between January 2011 and December 2021.

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We assessed the use of magnesium sulphate prior to preterm birth for preventing cerebral palsy in an Australian and New Zealand registry study. Use increased markedly from 32.3% (2012) to 78.

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As teeth develop, their mineralised composition is a bio-recorder of diet, environment, and growth. High-resolution elemental mapping provides a tool to reveal records of life history within teeth. The relative concentrations of a range of trace elements change between in utero development, birth, and weaning in eutherian mammals.

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Background: The transition from primary to secondary school presents a challenging developmental milestone which often marks a decline in academic performance. Social-emotional skills are recognized as fundamental to academic success but longitudinal research is needed to determine the extent of their association over this transition period.

Aim: This study sought to determine the association between self-reported social-emotional competencies of students in their final year of primary school (Year 6; age ~11 years) and reading and numeracy performance in their first year of secondary school (Year 7; age ~12 years).

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Background: Epidermolysis bullosa (EB) is a group of rare, severe, genetic disorders characterised by persistent skin fragility and open wounds. EB manifests as cutaneous and mucosal blistering, erosions and impaired wound healing.

Objectives: To determine the long-term efficacy, tolerability and safety of Oleogel-S10 (birch bark extract) in dystrophic (DEB) and junctional (JEB) EB in the 24-months open-label phase (OLP) of the EASE study.

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Low indoor light in urban housing can disrupt health and wellbeing, especially in older adults who experience reduced light sensitivity and sleep/circadian disruptions with natural aging. While controlled studies suggest that enhancing indoor lighting may alleviate the negative effects of reduced light sensitivity, evidence for this to be effective in the real world is lacking. This study investigates the effects of two light conditions on actigraphic rest-activity rhythms and subjective sleep in healthy older adults (≥ 60 years) living at home.

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Cells-of-Origin of Breast Cancer and Intertumoral Heterogeneity.

Adv Exp Med Biol

January 2025

Cancer Biology and Stem Cells Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Wurundjeri Country, Melbourne, Australia.

Both intrinsic and extrinsic mechanisms underpin the profound intertumoral heterogeneity in breast cancer. Increasing evidence suggests that the intrinsic characteristics of breast epithelial precursor cells may influence tumour phenotype. These "cells-of-origin" of cancer preside in normal breast tissue and are uniquely susceptible to mutagenesis upon exposure to distinct oncogenic stimuli.

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Substance use disorders (SUDs) pose a significant global health challenge, with relapse being a major obstacle in achieving successful treatment outcomes. In recent years, drug delivery strategies have emerged as promising tools to improve treatment efficacy and patient compliance in the context of SUD. Here we explore a diverse range of drug delivery strategies that have been investigated for addressing relapse behavior in SUD.

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The synthesis and structural characterisation of [Ln(Tp)]I (1-Ln; Ln = La, Ce, Pr, Nd) (Tp = hydrotris(3-(2'-furyl)-pyrazol-1-yl)borate) have been reported as an isomorphous series adopting pseudo-icosahedral ligand field geometries. Continuous shape measurement (CShM) analyses on the crystal field environments of 1-Ln show the smallest values yet reported for complexes employing two hexadentate ligands (-scorpionate environments), with the smallest belonging to 1-La. Single-ion magnetism for 1-Ce, 1-Pr and 1-Nd was probed with ac magnetic susceptibility studies revealing slow magnetic relaxation for 1-Nd in applied magnetic fields and in zero-applied field for 1-Ce, which is a rare observation for Ce(III)-based single-ion magnets.

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