Publications by authors named "Nixon J"

Background: Cardiovascular disease causes vascular dementia and contributes to most clinical dementia. This is embodied in the concept of vascular contributions to cognitive impairment and dementia (VCID). The potent endogenous peptide endothelin-1 (ET1) causes small artery vasoconstriction and fibrosis.

View Article and Find Full Text PDF

Background: Noseband adjustment should avoid discomfort and allow some jaw movement.

Objectives: To determine pressure beneath a cavesson noseband at five tightness levels during standing and chewing. It was hypothesised that increased noseband tightness is associated with increases in nasal and mandibular pressures while standing and chewing, accompanied by increases in eye temperature and blink rate.

View Article and Find Full Text PDF

The U.S. Sergeant First Class Heath Robinson Honoring our Promise to Address Comprehensive Toxics (PACT) Act expands benefits and services to U.

View Article and Find Full Text PDF

Introduction: Partnering with Consumers in healthcare systems is now widely accepted and mandated in many countries. Despite this acceptance, there is minimal information regarding the best practice of how to successfully establish systems to embed this practice into healthcare systems.

Methods: This evaluation used the RE-AIM implementation framework to retrospectively analyse data from a 3-year timeline to review the events relating to the transition of Consumer Partnering into a Clinical Governance Unit.

View Article and Find Full Text PDF
Article Synopsis
  • Asynchronous optical sampling (ASOPS) is effectively used to measure terahertz (THz) bandwidth pulses in coplanar waveguides with integrated photoconductive switches for signal excitation and detection.
  • The ASOPS technique shows high performance, able to capture full THz time-domain traces at up to 100 Hz, with a dynamic range that peaks at 40 dB for short measurements and increases to 88 dB for longer durations.
  • This research paves the way for advancements in real-time video-rate imaging and THz sensing applications, demonstrating the capability of ASOPS to achieve sufficient dynamic range for future THz spectroscopy measurements.
View Article and Find Full Text PDF
Article Synopsis
  • U.S. troops deployed to the Middle East were exposed to toxic airborne hazards and burn pits, which release harmful emissions containing particulate matter, toxic gases, and heavy metals.
  • Ongoing research shows these exposures can lead to significant and lasting health issues, particularly concerning lung health, though data on long-term consequences is still limited.
  • The 2022 PACT Act aims to enhance benefits for affected Veterans, mandates toxic exposure screenings, and promotes further research and education on the health impacts of these toxic exposures.
View Article and Find Full Text PDF
Article Synopsis
  • The study focuses on the rising rates of obesity and the challenges young adults face with dietary recommendations during the transition to higher education, a time often associated with weight gain.
  • Researchers explored whether providing personalized dietary and exercise advice based on individual genotypes would enhance healthy eating motivation among young adults aged 18-25.
  • Findings revealed that genotype-based personalized advice did not significantly influence healthy eating motivation compared to non-genotype advice or no advice, suggesting this approach may not be effective in preventing obesity in this demographic.*
View Article and Find Full Text PDF
Article Synopsis
  • Hand eczema is a common skin problem that can be painful and make it hard for people to work, and there isn’t a clear treatment plan agreed on by doctors in the UK.
  • This study aimed to compare two treatments, alitretinoin and ultraviolet therapy, to see which works better after 12 weeks for patients with severe hand eczema that didn't improve with regular medicine.
  • The results showed that while both treatments helped, alitretinoin was less effective than ultraviolet therapy in reducing the severity of the eczema after 12 weeks.
View Article and Find Full Text PDF

Recent studies in mice have indicated that the gut microbiome can regulate bone tissue strength. However, prior work involved modifications to the gut microbiome in growing animals and it is unclear if the same changes in the microbiome, applied later in life, would change matrix strength. Here we changed the composition of the gut microbiome before and/or after skeletal maturity (16 weeks of age) using oral antibiotics (ampicillin + neomycin).

View Article and Find Full Text PDF

Purpose: The effects of low-intensity exercise, heat-induced hypo-hydration and rehydration on maximal strength and the underlying neurophysiological mechanisms are not well understood.

Methods: To assess this, 12 participants took part in a randomised crossover study, in a prolonged (3 h) submaximal (60 W) cycling protocol under 3 conditions: (i) in 45 °C (achieving ~ 5% body mass reduction), with post-exercise rehydration in 2 h (RHY2), (ii) with rehydration across 24 h (RHY24), and (iii) a euhydrated trial in 25 °C (CON). Dependent variables included maximal voluntary contractions (MVC), maximum motor unit potential (M), motor evoked potential (MEP) amplitude and cortical silent period (cSP) duration.

View Article and Find Full Text PDF

Military burn pits, used for waste disposal in combat zones, involve the open-air burning of waste materials, including plastics, metals, chemicals, and medical waste. The pits release a complex mixture of occupational toxic substances, including particulate matter (PM), volatile organic compounds (VOCs), heavy metals, dioxins, and polycyclic aromatic hydrocarbons (PAHs). Air pollution significantly impacts brain health through mechanisms involving neuroinflammation.

View Article and Find Full Text PDF

Background: Poor noseband adjustment could create high pressures that may risk pain or tissue damage.

Objectives: To quantify sub-noseband pressures dorsally over the nasal bone and ventrally over the mandibular rami for a Cavesson, Swedish (crank), Drop and Flash noseband at five tightness levels (2.0 to 0.

View Article and Find Full Text PDF

Aim: To develop a Theory of Change (ToC) pathway to facilitate the development of a multi-component intervention package supporting pressure Ulcer (PU) risk identification and management, in partnership with people with Long Term Neurological Conditions (LTNC) who self-manage care and live at home, their informal carers and PAs.

Methods: A participatory approach, with extensive input from those whose lives are the focus of the research, was used throughout the 4 interlinked work packages (WP): Iterative data analysis was undertaken with emerging findings from each WP informing subsequent stages of the study.

Findings: Overall, 74 participants contributed across the 4 WPs, incorporating 31 Service Users (SU), 8 carers, 9 Personal Assistants (PAs) and 26 professional stakeholders.

View Article and Find Full Text PDF
Article Synopsis
  • - Diabetes affects 537 million people globally, and 34% are at risk of developing foot ulcers, prompting the need for standard outcomes in treatment studies.
  • - A Core Outcome Set (COS) was created through a structured process involving systematic reviews, patient interviews, and a two-round Delphi survey with input from patients and experts.
  • - The COS includes 8 critical outcomes, such as wound healing and quality of life, which will help improve the consistency of research assessing diabetes-related foot ulcer treatments.
View Article and Find Full Text PDF

Introduction: Head and neck cancer (HNC) care was significantly impacted by the COVID-19 pandemic. The current study aimed to explore the functional outcomes and service experiences of patients with HNC treated during and prior the COVID-19 pandemic.

Methods: Mixed methods were used to (1) retrospectively compare HNC patients' functional outcomes and allied health service usage across two time-controlled cohorts and (2) understand the experiences of HNC care using validated surveys and qualitative interviews.

View Article and Find Full Text PDF
Article Synopsis
  • Ovine pulmonary adenocarcinoma (OPA) is a serious lung disease in sheep that affects their health and costs farmers money.* -
  • Scientists created a model to study OPA by giving sheep a virus called JSRV, and they found that different amounts of the virus led to various types of tumors.* -
  • They used imaging techniques like CT scans and ultrasounds to monitor the tumors, discovering that these tools can effectively track the disease's progress, which helps improve research.*
View Article and Find Full Text PDF

Markers of social health, including kinlessness, social isolation and loneliness, have important implications for quality of life and health for older adults. As the population ages, there is a growing cohort of kinless older adults without living partners or children, particularly among disadvantaged groups. Kinlessness has been associated with worse mental and physical health, significant unmet care needs, increased risk of dementia, higher rates of long-term placement, and higher mortality rates than those for patients with kin.

View Article and Find Full Text PDF

Coccidiosis and necrotic enteritis (NE) are prevalent poultry ailments worldwide, leading to decreased live performance and elevated mortality rates without antibiotic usage. This study evaluated (black cumin) seeds (BCS) and kefir as alternatives to antibiotics for broilers. An in vivo study over a 28-day period, using 384 Cobb 500 male broilers organized into six treatment groups as part of a completely randomized block experimental design was conducted.

View Article and Find Full Text PDF

Background: We describe the recent temporal patterns of respiratory syncytial virus (RSV) and influenza virus detections in the Northern Territory (NT) of Australia, between 2020 and 2023.

Methods: This retrospective analysis of patients presenting with respiratory diseases utilised a multiplex viral nucleic acid detection assay for RSV, influenza and SARS Cov2 (COVID-19) to determine the relative frequency of non-COVID-19 respiratory viral detections by age and month during the study period.

Results: During this period of the NT COVID-19 epidemic, disruption of the usual annual wet season RSV outbreak patterns occurred, and the yearly influenza peak was absent for two annual cycles.

View Article and Find Full Text PDF

Aim: To explain how the clinical and organisational context influenced the way the Pressure Ulcer Risk Primary or Secondary Evaluation Tool (PURPOSE-T) is used by nursing staff to support their clinical judgement and decision making about care planning and delivery.

Methods: A realist process evaluation was undertaken in a large acute hospital trust using mixed methods incorporating organisational policy review, staff semi-structured, ethnographic observation of clinical care and patient record review. Approximately 75 h of ethnographic field work involving 72 patients, 15 patient record reviews and 16 staff interviews were undertaken on 4 wards.

View Article and Find Full Text PDF

This retrospective study reviewed the macrolide resistance rates of Group A Streptococcus (GAS) isolates in the Northern Territory from 2012 to 2023. Clindamycin and erythromycin resistance rates peaked in 2021, at 6.0% and 12.

View Article and Find Full Text PDF

In a recent study examining the effects of manipulating the gut microbiome on bone, a control group of mice in which the microbiome was altered using a non-caloric, aspartame-based sweetener resulted in whole bone strength being 40% greater than expected from geometry alone, implicating enhanced bone tissue strength. However, the study was not designed to detect changes in bone in this control group and was limited to young male mice. Here we report a replication study examining how changes in the gut microbiome caused by aspartame-based sweetener influence bone.

View Article and Find Full Text PDF

The annual meeting for the Intermountain Branch was held in April 2024 on the campus of Brigham Young University. There were 127 branch members from Utah, Idaho, and Nevada who attended the meeting and were composed of undergraduate students, graduate or medical students, and faculty. This report highlights the diversity of, and the emerging trends in, the research conducted by American Society for Microbiology members in the Intermountain Branch.

View Article and Find Full Text PDF

Background: No in-shoe systems, measuring both components of plantar load (plantar pressure and shear stress) are available for use in patients with diabetes. The STAMPS (STrain Analysis and Mapping of the Plantar Surface) system utilises digital image correlation (DIC) to determine the strain sustained by a deformable insole, providing a more complete understanding of plantar shear load at the foot-surface interface.

Research Questions: What is the normal range and pattern of strain at the foot-surface interface within a healthy population as measured by the STAMPS system? Is STAMPS a valid tool to measure the effects of plantar load?

Methods: A cross-sectional study of healthy participants was undertaken.

View Article and Find Full Text PDF

Background: Foot complications in diabetes are common and destructive, resulting in substantial healthcare costs and high rates of morbidity. Coastal areas have a significantly higher burden of disease. People with diabetes experience disproportionately high rates of psychological health issues, including anxiety, depression and diabetes distress.

View Article and Find Full Text PDF