Organisms have evolved protective strategies that are geared toward limiting cellular damage and enhancing organismal survival in the face of environmental stresses, but how these protective mechanisms are coordinated remains unclear. Here, we define a requirement for neural activity in mobilizing the antioxidant defenses of the nematode both during prolonged oxidative stress and prior to its onset. We show that acetylcholine-deficient mutants are particularly vulnerable to prolonged oxidative stress.
View Article and Find Full Text PDFFluorescence fluctuation spectroscopy experiments were conducted to better understand the complex mass transport dynamics of organic molecules in liquid-filled nanoporous media. Anodic aluminum oxide (AAO) membranes incorporating 10 and 20 nm diameter cylindrical pores were employed as model materials. Nile red (NR) dye was used as a fluorescent tracer.
View Article and Find Full Text PDFChlamydiosis is a common infectious disease impacting koalas and is a major cause of population decline due to resulting mortality and infertility. Polymorphisms of major histocompatibility complex (MHC) genes influence chlamydial disease outcomes in several species but koala studies have produced variable results. We aimed to identify the MHC II DAB and DBB repertoire of koalas from Liverpool Plains, NSW, a population heavily impacted by chlamydiosis.
View Article and Find Full Text PDFTremor Other Hyperkinet Mov (N Y)
December 2024
Background: Essential tremor (ET) is among the most common movement disorders, yet there are few treatment options. Medications have limited efficacy and adverse effects; thus, patients often discontinue pharmacotherapy or take several medications in combination. We evaluated the economic correlates (healthcare resource utilization [HCRU] and costs) and comorbidities among adults with and without ET and among subgroups of patients with ET prescribed 0 to ≥3 ET medications.
View Article and Find Full Text PDFIn situ electrochemical liquid phase transmission electron microscopy (LP-TEM) measurements utilize micro-chip three-electrode cells with electron transparent silicon nitride windows that confine the liquid electrolyte. By imaging electrocatalysts deposited on micro-patterned electrodes, LP-TEM provides insight into morphological, phase structure, and compositional changes within electrocatalyst materials under electrochemical reaction conditions, which have practical implications on activity, selectivity, and durability. Despite LP-TEM capabilities becoming more accessible, in situ measurements under electrochemical reaction conditions remain non-trivial, with challenges including electron beam interactions with the electrolyte and electrode, the lack of well-defined experimental workflows, and difficulty interpreting particle behavior within a liquid.
View Article and Find Full Text PDFObjectives: Understanding human tooth structure fluorescence aids clinical and forensic dentistry, enabling tissue/material differentiation and the creation of esthetic restorative materials. Material manufacturers seek to replicate natural tooth fluorescence, necessitating the development of novel techniques to detect them. Procuring human teeth for research is challenging due to ethical and infection control standards, prompting a search for alternative models.
View Article and Find Full Text PDFBackground: Online child sexual victimization is increasingly facilitated by technology, but evidence of its prevalence and characteristics remains scarce. Reliable population-based data is critical to understand the magnitude and nature of the problem, and inform evidence-based prevention.
Objective: To determine the prevalence of nonconsensual sharing of sexual images of the child by any perpetrator, and of online sexual solicitation by any adult perpetrator; and to determine the characteristics of these experiences.
Background: Little population-based evidence exists about prevalence of lifetime disclosure and non-disclosure of child sexual abuse (CSA). Evidence is lacking about disclosure by girls and women compared with boys and men, and gender diverse individuals. It is unclear if disclosure is more common in contemporary society, and if disclosure is influenced by abuse severity and perpetrator type.
View Article and Find Full Text PDFWildlife diseases are major players in local and global extinctions. Effective disease surveillance, management and conservation strategies require accurate estimates of pathogen prevalence. Yet pathogen detection in wild animals remains challenging.
View Article and Find Full Text PDFBackground: Sibling sexual abuse (SSA) is the most common form of intra-familial child sexual abuse yet is largely understudied.
Objective: To systematically review the literature on risk and protective factors, disclosure patterns and responses to disclosure, and therapeutic or other responses to cases of sibling sexual abuse.
Methods: In line with PRISMA guidelines, six key databases were searched along with a systematic search of key grey literature sources.
Purpose: Toxicities associated with stereotactic radiosurgery (SRS) are important when considering treatment and supportive management for patients with brain metastases. We herein assessed the association between brain metastasis location and risk of toxicity after SRS.
Methods: We conducted a retrospective institutional review of patients treated with SRS for brain metastases between 2008 and 2023.
Objective: The COVID-19 pandemic had profound effects on society, including those living with chronic pain. This study sought to examine pandemic impacts on individuals enrolled in pragmatic clinical trials focused on nonpharmacological treatments for chronic pain.
Methods: We evaluated responses to a questionnaire on COVID-19 impacts that had been administered to participants (n=2024) during study enrollment in 3 pragmatic clinical trials for chronic pain treatment.
The National Institutes of Health, U.S. Department of Defense, and U.
View Article and Find Full Text PDFResearch suggests that the dimensions of childhood maltreatment (type, age of onset, duration, frequency and perpetrator) play an important role in determining health and wellbeing outcomes, though little information is available on these dimensions for any care experienced cohorts. This study aimed to determine if any variation in maltreatment dimensions were experienced between two subsets of the nationally representative Australian Child Maltreatment Study, both of which reported childhood maltreatment histories: care-experienced ( = 358) and non-care-experienced ( = 4922). Using a series of independent t-tests and chi-square tests, we compared the two groups on seven dimensions (number of maltreatment types, range of maltreatment items, age of onset, duration, frequency, perpetrator number, and perpetrator type) for the five child maltreatment types (physical, emotional, sexual abuse, neglect, and exposure to domestic violence).
View Article and Find Full Text PDFQ fever is a zoonosis caused by , primarily affecting those in close contact with domestic ruminants, the main source of human infection. has also been detected in various wildlife species globally. In Australia, serological and molecular studies have shown exposure to and infection by in macropods, bandicoots, and koalas.
View Article and Find Full Text PDFClin Neurol Neurosurg
November 2024
Background: The incidence of brain metastases from gastric origin is less than 1% in those with primary gastric cancer. Given this exceedingly rare presentation, there is limited literature describing the outcomes of their neurosurgical treatment. We wish to identify the role of surgical intervention for brain lesions in metastatic gastric cancer via institutional case series and systematic review.
View Article and Find Full Text PDFDeposition of atom-precise nanoclusters onto solid supports is a promising route to synthesize model heterogeneous catalysts. However, to enhance nanocluster-support interactions, activation of the nanoclusters by removal of surface ligands is necessary. Thermal treatment to remove surface ligands from supported metal nanoclusters can yield highly active heterogeneous catalysts, however, the high temperatures employed can lead to poor control over the final size and speciation of the nanoclusters.
View Article and Find Full Text PDFObjective: Understanding how glioma patients value cognitive outcomes is essential to personalizing their treatment plans. The purpose of this study was to identify the modifiable cognitive functions most affected by treatment and most important to patient quality of life.
Methods: Patients with gliomas were prospectively enrolled in focus groups and individual interviews using a standardized guide focusing on cognitive functions until saturation was achieved.
Objective: Pediatric coronavirus disease 2019 (COVID-19) vaccination rates remain low in rural areas. A strong clinician recommendation improves vaccine uptake, but the pediatric COVID-19 vaccine recommendation practices of rural primary care clinicians have not been reported. Our objectives were to describe, among rural Colorado pediatric clinicians: 1) recommendation practices for COVID-19 vaccine compared to influenza and school-entry required vaccines, and 2) personal attitudes.
View Article and Find Full Text PDFGlioma cells hijack developmental programs to control cell state. Here, we uncover a glioma cell state-specific metabolic liability that can be therapeutically targeted. To model cell conditions at brain tumor inception, we generated genetically engineered murine gliomas, with deletion of p53 alone (p53) or with constitutively active Notch signaling (N1IC), a pathway critical in controlling astrocyte differentiation during brain development.
View Article and Find Full Text PDFDry eye disease (DED) is a common, multifactorial ocular disease impacting 5% to 20% of people in Western countries and 45% to 70% in Asian countries. Despite the prevalence of DED and the number of treatment approaches available, signs and symptoms of the disease continue to limit the quality of life for many patients. Standard over-the-counter treatment approaches and behavior/environmental modifications may help some cases but more persistent forms often require pharmacological interventions.
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