Introduction: The incidence of gestational diabetes mellitus (GDM) in Australia has tripled in the last 20 years. Consequently, over 40 000 pregnancies are now diagnosed as 'higher risk' each year. This has increased antenatal surveillance and obstetric intervention, often in the form of delivery earlier than 39 weeks gestation.
View Article and Find Full Text PDFThe goal of this study was to compare the bioaccumulation of the PCB mixture Aroclor 1254 in zebrafish to cardiac and neurologic outcomes. The establishment of effect concentrations (ECs) for cardiac and neurotoxic effects of PCBs in early life stage fish is challenging due to a lack of measured PCB concentrations in test media (e.g.
View Article and Find Full Text PDFBackground: The impact of pre-infection vaccination on the risk of long COVID remains unclear in the pediatric population. We aim to assess the effectiveness of BNT162b2 on long COVID risks with various strains of the SARS-CoV-2 virus in children and adolescents, using comparative effectiveness methods. We further explore if such pre-infection vaccination can mitigate the risk of long COVID beyond its established protective benefits against SARS-CoV-2 infection using causal mediation analysis.
View Article and Find Full Text PDFAs a result of human activity, Earth's atmosphere and climate are changing at an unprecedented pace. Models based on short-term experiments predict major changes will occur in marine phytoplankton communities in the future ocean, but rarely consider how evolution or interactions with other microbes may influence these changes. Here we experimentally evolved several phytoplankton in co-culture with a heterotrophic bacterium, Alteromonas sp.
View Article and Find Full Text PDFBackground And Aims: Public perceptions of alcohol and its related harms and policies are shaped by multiple discourses and can influence behaviour and policy support. As part of a FrameWorks-informed project to test framing approaches to improve public understanding and support for evidence-based alcohol policies in the UK, this research aimed to (i) summarise relevant evidence; (ii) compare how public understanding of alcohol harms differs from those of academic and charity experts; and (iii) develop novel framing approaches.
Methods: (1) a literature review including systematic, scoping and targeted components to understand previous evidence on effective framing from behaviour change, UK alcohol policy and FrameWorks literatures; (2) comparison of public views of alcohol harms and policies from four focus groups (n = 20) with those of public health experts; (3) an iterative process involving workshops and stakeholder consultation to develop 12 novel framing approaches.
The overall goal of the Alzheimer's Disease Neuroimaging Initiative (ADNI) is to optimize and validate biomarkers for clinical trials while sharing all data and biofluid samples with the global scientific community. ADNI has been instrumental in standardizing and validating amyloid beta (Aβ) and tau positron emission tomography (PET) imaging. ADNI data were used for the US Food and Drug Administration (FDA) approval of the Fujirebio and Roche Elecsys cerebrospinal fluid diagnostic tests.
View Article and Find Full Text PDFIntroduction: Intracellular Ca signalling regulates membrane permeabilities, enzyme activity, and gene transcription amongst other functions. Large transmembrane Ca electrochemical gradients and low diffusibility between cell compartments potentially generate short-lived, localised, high-[Ca] microdomains. The highest concentration domains likely form between closely apposed membranes, as at amphibian skeletal muscle transverse tubule-sarcoplasmic reticular (T-SR, triad) junctions.
View Article and Find Full Text PDFPurpose: Meningiomas are the most common primary brain tumour and account for over one-third of cases. Traditionally, estimations of morbidity and mortality following surgical resection have depended on subjective assessments of various factors, including tumour volume, location, WHO grade, extent of resection (Simpson grade) and pre-existing co-morbidities, an approach fraught with subjective variability. This systematic review and meta-analysis seeks to evaluate the efficacy with which machine learning (ML) algorithms predict post-operative outcomes in meningioma patients.
View Article and Find Full Text PDFObjective: The pattern, rate, and natural history of bone flap resorption following cranioplasty with frozen, autologous bone flap has not been fully defined. The authors sought to quantify the progression and natural history of bone flap resorption.
Methods: Patients who had craniectomy and delayed cranioplasty with stored, frozen bone flap between 2012 and 2022 were included in this study.
Introduction: There is significant uncertainty regarding the role that anaemia or red blood cell transfusion (RBCT) plays in the development of gut injury in preterm infants. This study evaluated Near Infrared Spectroscopy (NIRS) together with a range of known biomarkers of gut inflammation to identify their relationship with anaemia and RBCT.
Method: A prospective observational study of preterm infants born at <30 weeks gestation was conducted from birth until either 36 weeks post conceptional age or discharge home.
Introduction: Blood-based biomarkers (BBMs) can enable early detection of brain amyloid beta (Aβ) pathology in cognitively unimpaired individuals. However, the extent to which common medical conditions affect biomarker performance remains unclear.
Methods: Participants (n = 348) included individuals without cognitive impairment.
Aims: For managing malignant upper gastrointestinal bleeding (MUGIB), randomised control trial data have shown the haemostatic powder; Hemospray (TC-325), results in greater immediate haemostasis and lower 30-day rebleeding rates than standard endoscopic therapy (SET). We sought to determine if using TC-325 as a first-line option for patients with MUGIB would be cost-effective compared with SET in the United Kingdom.
Methods: A decision tree was developed among patients with MUGIB, assessing initial therapy with TC-325 or SET over a 30-day time horizon.
The Neurohospitalist Core Competencies comprise a set of competency-based learning objectives that encapsulate the knowledge, skills, and attitudes of neurohospitalitists who specialize in the care of hospitalized patients with neurologic conditions. These competencies serve to characterize the rapidly expanding field of neurohospitalist medicine. The 27 chapters are divided into 3 sections entitled: neurological conditions, clinical interventions and interpretation of ancillary studies, and neurohospitalist role in the healthcare system.
View Article and Find Full Text PDFIntroduction: Two thirds of Alzheimer's disease (AD) patients are female. Genetic and chronic health risk factors for AD affect females more negatively compared to males.
Objective: This exploratory multimodal neuroimaging study aimed to examine sex differences in cognitively unimpaired older adults on: (1) amyloid-β via 18F-AV-45 Florbetapir PET imaging, (2) neurodegeneration via T1 weighted MRI volumetrics, (3) cerebral blood flow via ASL-MRI.
Epigenetic clocks provide powerful tools for estimating health and lifespan but their ability to predict brain degeneration and neuronal damage during the aging process is unknown. In this study, we use GrimAge, an epigenetic clock correlated to several blood plasma proteins, to longitudinally investigate brain cellular microstructure in axonal white matter from a cohort of healthy aging individuals. A specific focus was made on white matter hyperintensities, a visible neurological manifestation of small vessel disease, and the axonal pathways throughout each individual's brain affected by their unique white matter hyperintensity location and volume.
View Article and Find Full Text PDFInt Arch Allergy Immunol
November 2024
Introduction: Anaphylaxis is an acute life-threatening allergy, most commonly provoked by food, venom, or drugs. There is limited data regarding differences in symptomatology between anaphylaxis provoked by different triggers. This study aimed to assess sociodemographic characteristics, clinical symptoms, and management of anaphylaxis, according to triggers in adults.
View Article and Find Full Text PDFBackground And Purpose: Neurohospitalists specialize in the care of hospitalized patients with neurological conditions. As the neurohospitalist model of patient care has grown rapidly and in diverse ways, there has been increasing demand for a formal definition of the field, particularly to support curriculum development for learners at multiple levels.
Methods: The Neurohospitalist Society (NHS) formed a Core Competencies Committee in 2021.