Publications by authors named "Fuller A"

The T cell antigen presentation platform MR1 consists of 6 allomorphs in humans that differ by no more than 5 amino acids. The principal function of this highly conserved molecule involves presenting microbial metabolites to the abundant mucosal-associated invariant T (MAIT) cell subset. Recent developments suggest that the role of MR1 extends to presenting antigens from cancer cells, a function dependent on the K43 residue in the MR1 antigen binding cleft.

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  • The study investigates the optimal timing for surgery after traumatic brain injury (TBI) and its effect on inflammatory cytokine levels.
  • It involved 82 TBI patients with depressed skull fractures, analyzing pre-and postoperative serum samples using a specialized assay to measure cytokine levels.
  • Results indicated that surgeries performed after 48 hours post-injury were associated with significantly higher TNF-α levels, while factors like post-traumatic seizures and neurological deficits influenced cytokine responses.
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Background: Epilepsy is a chronic condition that confers social stigma, reduced engagement in work and social activities, increased risks of comorbidities, and premature death. It is often treated with medications, but in about a third of patients, epilepsy may be refractory to medications. It is estimated that each year 211,456 new individuals across Africa meet criteria for surgically treatable epilepsy, and the current volume of surgically treatable epilepsy is 1,819,067 cases across the region.

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Objective: The Endoscopic Third Ventriculostomy Success Score (ETVSS) is a useful decision-making heuristic when considering the probability of surgical success, defined traditionally as no repeat cerebrospinal fluid diversion surgery needed within 6 months. Nonetheless, the performance of the logistic regression (LR) model in the original 2009 study was modest, with an area under the receiver operating characteristic curve (AUROC) of 0.68.

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  • Heat stress (HS) negatively affects water balance in broiler chickens by disrupting kidney function, specifically the aquaporins (AQPs) that help regulate water permeability.
  • The study evaluated the expression of kidney AQPs and blood composition in broilers under different conditions, including thermoneutral settings and cyclic heat stress, with and without glucose supplementation.
  • Results showed higher expressions of AQPs in heat-stressed birds, increased water consumption, and elevated blood glucose levels, indicating that AQPs play a crucial role in water management during heat stress in chickens.
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  • - Species interactions significantly impact biodiversity and wildlife dynamics, but current models often overlook the importance of population size, focusing instead on occupancy states.
  • - The research illustrates that using occupancy data can lead to incorrect inferences about species interactions, and therefore proposes a new modeling framework that incorporates abundance for more accurate results.
  • - Through simulations and a case study involving coyotes, fishers, and American martens, the study shows that understanding interactions based on abundance can reveal hidden dynamics and transform ecological research approaches.
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BPH is a common urological pathology that affects 2480 per 100,000 men worldwide. With a rising population and increased age expectancy, the prevalence of benign prostatic hyperplasia (BPH) is increasing (Awedew et al. in Lancet Healthy Longev 3(11), 2022).

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Unlabelled: Background A limited number of studies have investigated the effects of lifestyle interventions in hypertrophic cardiomyopathy (HCM). This study evaluated the effect of a novel lifestyle intervention incorporating physical activity (PA) and dietary nitrate supplementation on heart rate variability (HRV) and haemodynamic measures in HCM.

Methods: Twenty-eight individuals with HCM were randomised into either the intervention or control group.

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The age-related decline in appetite and food intake - termed "anorexia of ageing" - is implicated in undernutrition in later life and hence provides a public health challenge for our ageing population. Eating behaviour is controlled, in part, by homeostatic mechanisms which sense nutrient status and provide feedback to appetite control regions of the brain. Such feedback signals, propagated by episodic gut hormones, are dysregulated in some older adults.

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  • Birds exhibit molecular differences in water intake, categorized as high residual water intake (HRWI) and low residual water intake (LRWI), based on their actual water consumption versus what is expected given their metabolic rates.
  • In LRWI birds, there is a notable increase in kidney metabolites like glucose and fructose, while specific sodium-glucose cotransporters (SGLTs) show altered expression levels that suggest a role in water regulation.
  • The increased expression of the SGLT4 transporter and GLUT2 in LRWI birds is hypothesized to enhance water efficiency and glucose retention, influencing their overall drinking behavior.
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Purpose: To investigate longitudinal associations between the presence of early childhood routines- predictable and repeatable functional practices that promote healthy growth, development, and relationships - and adolescent health outcomes.

Design: Secondary data analysis.

Setting: 20 large U.

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  • Leishmania is a protozoan parasite that causes serious diseases such as cutaneous and visceral leishmaniasis, heavily impacting impoverished communities with limited medical resources.
  • Current treatments are toxic and not very effective, prompting the need for research into the parasite's metabolism to find new drug targets.
  • The study focused on the unique enzyme LiAcs1 from Leishmania infantum, which has both acetyl-CoA synthetase and acetoacetyl-CoA synthetase activities, revealing it as a promising target for developing selective inhibitors to disrupt the parasite's critical metabolic pathways.
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  • The SYNAPSE study found that mepolizumab, when combined with standard care, significantly reduced nasal polyp scores in patients suffering from chronic rhinosinusitis with nasal polyps compared to placebo.
  • Researchers aimed to examine the connection between nasal polyp scores, peak nasal inspiratory flow, and patient-reported outcomes.
  • Results indicated that patients who showed improvements in nasal polyp scores also experienced better peak nasal flow and symptom relief compared to those who did not improve.
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Background: Polymorphisms are common in nature, but they are rarely shared among closely related species. Polymorphisms could originate through convergence, ancestral polymorphism, or introgression. Although shared neutral genomic variation across species is commonplace, few examples of shared functional traits exist.

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  • A new subset of macrophages called iron-rich tumor-associated macrophages (iTAMs) was identified, marked by high levels of intracellular iron and involvement in angiogenesis and immunosuppression in tumors.
  • Two types of iTAMs were characterized based on their location and gene expression: perivascular (pviTAM) and stromal (stiTAM).
  • The endothelin receptor type B (Ednrb) was identified as a specific marker for iTAMs, and its deletion reduced tumor growth, while the transcription factor Bach1 was found to regulate iTAM functions by inhibiting Ednrb expression.
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Heart rate variability (HRV) is a non-invasive measure of cardiac autonomic function. A clearer understanding as to whether resting autonomic function represented by HRV could be associated with changes in peak exercise cardiac function remains unanswered. This study evaluated the effect of age and sex on HRV, cardiometabolic function, and determined the correlation between HRV and cardiac function in healthy individuals.

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CD8+ T cells destroy insulin-producing pancreatic β cells in type 1 diabetes through HLA class I-restricted presentation of self-antigens. Combinatorial peptide library screening was used to produce a preferred peptide recognition landscape for a patient-derived T cell receptor (TCR) that recognized the preproinsulin-derived (PPI-derived) peptide sequence LWMRLLPLL in the context of disease risk allele HLA A*24:02. Data were used to generate a strong superagonist peptide, enabling production of an autoimmune HLA A*24:02-peptide-TCR structure by crystal seeding.

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  • - The study addresses disparities in neurosurgical care globally and examines how collaborations have shifted from traditional mission trips to partnerships, analyzing the impact of research funding on these collaborations using a graph theoretical approach.
  • - A bibliometric search found 307 neurosurgical articles published from 1985 to 2020, revealing that co-authorship rates between high-income and low- or middle-income countries have increased significantly, especially after 2015, with LMIC-LMIC partnerships rising at a faster pace than others.
  • - Research funding plays a crucial role in fostering collaborations, as funding from charitable organizations and government grants was linked to increased co-authorship between LMIC and HIC authors, while most LMIC-LMIC co-authorship
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This article delves into academic global neurosurgeons' role in addressing the inequities in neurosurgical care globally. It outlines a comprehensive training framework incorporating global health education, research, and leadership development into neurosurgery residency programs. The article highlights the importance of interdisciplinary collaboration, cultural humility, and sustainable partnerships and advocates for a holistic approach to global neurosurgery.

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This article explores the transformative partnership between Duke Global Neurosurgery and Neurology (DGNN) and Uganda, emphasizing the power of dyads in international collaboration. It details the partnership's focus on service, research, and training, highlighting key accomplishments like the establishment of a neurosurgery residency program, expansion of services, and an epilepsy clinic. Challenges such as resource constraints and cross-cultural collaboration are addressed.

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Human cytomegalovirus (HCMV) glycoprotein B (gB) is a class III membrane fusion protein required for viral entry. HCMV vaccine candidates containing gB have demonstrated moderate clinical efficacy, but no HCMV vaccine has been approved. Here, we used structure-based design to identify and characterize amino acid substitutions that stabilize gB in its metastable prefusion conformation.

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Background: Previous community-wide physical activity trials have been criticized for methodological limitations, lack of population-level changes, and insufficient reach among underserved communities. Social marketing is an effective technique for community-wide behavior change and can coincide with principles of community-based participatory research (CBPR).

Purpose: A systematic scoping review of community-wide interventions (system-level) targeting physical activity and/or weight loss was conducted to (i) describe and critically discuss how social marketing strategies are implemented; (ii) identify which populations have been targeted, including underserved communities; (iii) evaluate the use of CBPR frameworks; (iv) assess retention rates; and (v) identify gaps in the literature and formulate future recommendations.

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After discharge from a neonatal unit, families of preterm infants may require therapeutic support to address challenges related to their infant/s' development, changed family circumstances, and/or parent wellbeing. This integrative review (IR) sought to examine the impact of music therapy on preterm infants and their families post-hospital discharge. A systematic search encompassing seven databases resulted in 83 citations, with six studies initially meeting the inclusion criteria.

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