Publications by authors named "James Mitchell"

Studies in SIV-infected macaques show that the virus reservoir is particularly refractory to conventional suppressive antiretroviral therapy (ART). We posit that optimized ART regimens designed to have robust penetration in tissue reservoirs and long-lasting antiviral activity may be advantageous for HIV or SIV remission. Here we treat macaques infected with RT-SHIV with oral emtricitabine/tenofovir alafenamide and long-acting cabotegravir/rilpivirine without (n = 4) or with (n = 4) the immune activator vesatolimod after the initial onset of viremia.

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  • - This study is the first large-scale examination of rare copy number variants (CNVs) in anorexia nervosa (AN), involving data from 7,414 AN cases and 5,044 controls to explore their potential genetic links to the disorder.
  • - The researchers investigated both well-known syndromic CNVs and those associated with other diseases but found no significant links between these variants and AN; however, they identified 21 potential CNV regions that may play a role in AN risk, particularly in areas related to metabolic and neurodevelopmental factors.
  • - Ultimately, the findings suggest that rare CNVs have a limited impact on the development of AN, aligning it with other psychiatric disorders like bipolar disorder, and indicate that
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Short-term preoperative methionine restriction (MetR) is a promising translatable strategy to mitigate surgical injury response. However, its application to improve post-interventional vascular remodeling remains underexplored. Here we find that MetR protects from arterial intimal hyperplasia in a focal stenosis model and pathologic vascular remodeling following vein graft surgery in male mice.

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Objective: Metabolic and bariatric surgery (MBS) is associated with substantial, but variable, weight outcomes. The gut microbiome may be a factor in determining weight trajectory, but examination has been limited by a lack of longitudinal studies with robust microbiome sequencing. This study aimed to describe changes in the microbiome and associations with weight outcomes more than 2 years post surgery.

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This is the sixth contribution in a series devoted to the phylogeny and taxonomy of powdery mildews. This part includes our third treatment of the species of the genus . It continues the previous contribution on the phylogenetic-taxonomic assessment of the species belonging to the " lineage.

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Background: Outcome measurement is essential to determine the effectiveness of health interventions and improve the quality of services. The interplay of social, individual, and biological factors makes this a complex process in the psychiatry of people with intellectual disability (PwID).

Aim: Review of outcome measures which are validated in PwID.

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Epilepsy care generates multiple sources of high-dimensional data, including clinical, imaging, electroencephalographic, genomic, and neuropsychological information, that are collected routinely to establish the diagnosis and guide management. Thanks to high-performance computing, sophisticated graphics processing units, and advanced analytics, we are now on the cusp of being able to use these data to significantly improve individualized care for people with epilepsy. Despite this, many clinicians, health care providers, and people with epilepsy are apprehensive about implementing Big Data and accompanying technologies such as artificial intelligence (AI).

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  • Chronic headaches are a common issue for military Veterans after experiencing traumatic brain injuries (TBI), and their treatment is often complicated and costly.
  • A study of 141,125 Veterans post-9/11 revealed that those with specific types of headache combinations, especially post-TBI migraines, faced significantly higher healthcare costs.
  • There's a need for further research to understand if the high costs correlate with better treatment results or indicate persistent, harder-to-treat headaches.
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  • Cancer cells, particularly in head and neck squamous cell carcinoma (HNSCC), resist treatment via the TNFα/NF-κB signaling pathway, with genomic changes seen in about 40% of cases.
  • Researchers performed an RNAi screen, revealing that key cellular pathways (WNT, NOTCH, TGFβ) and specific cell cycle kinases (like AURKA and TTK) play significant roles in regulating NF-κB activation and cancer cell viability when exposed to TNFα.
  • Focusing on the TTK protein, they found that inhibiting it enhances cell death and sensitivity to radiation therapy, highlighting potential therapeutic targets that could improve treatment outcomes in HNSCC.
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  • - The study aimed to differentiate between reactive atypia and dysplasia in cholecystectomy specimens using immunostains for IMP3, p53, and S100P in a sample of 54 cases.
  • - Results indicated that normal and reactive atypia cases mostly showed negative IMP3 and wild-type p53, while dysplasia cases had significant positivity in IMP3 and aberrant p53 patterns.
  • - The findings suggest that positive IMP3 or abnormal p53 expression could help pathologists distinguish dysplasia from reactive atypia in challenging cases.
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Purpose Of Review: Recent literature suggests a potential causal link between metabolic bariatric surgery (MBS) and an increased risk of eating disorders. However, the available literature offers unclear results regarding the definition of eating problems among MBS patients, their potential impact on weight outcomes, and the efficacy of adjunctive treatment.

Recent Findings: Although eating disorders may be rare phenomena after surgery, disordered eating behaviors are more common and tend to be more consistently associated with suboptimal weight loss.

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The rationale of this study stems from the concern of a radiation-induced accident or terrorist-mediated nuclear attack resulting in large populations of people exposed to nonlethal radiation doses or after a course of definitive radiation therapy which could substantially increase the risk for cancer induction after exposure. Currently, there are no safe and effective interventions to reduce this increased cancer risk to humans. We have tested the hypothesis that the mTOR inhibitor, rapamycin, administered in the diet of mice would reduce or delay radiation-induced cancer when given after radiation exposure.

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A Special-purpose Committee on Fungal Names with the Same Epithet was established at the XIX International Botanical Congress (IBC) in Shenzhen, China in 2017, with a mandate to report to the 12th International Mycological Congress (IMC) with recommendations on a preferred course of action with respect to names of pleomorphic fungi sharing the same epithet under the International Code of Nomenclature for algae, fungi, and plants. This report provides a synthesis of the deliberations from the Special-purpose Committee. We discuss the arguments for and against the proposed solution to the problems that have arisen regarding the nomenclature of fungi described in multiple morphs using the same epithet.

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Introduction: Mild traumatic brain injury (TBI) affects a significant number of military personnel, primarily because of physical impact, vehicle incidents, and blast exposure. Post-traumatic headache (PTH) is the most common symptom reported following mild TBI and can persist for several years. However, the current International Classification of Headache Disorders lacks phenotypic characterization for this specific headache disorder.

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  • Anion sensing technology is essential for understanding biological systems and environmental interactions, yet traditional electrochemical methods are limited in distinguishing various anions in mixtures.
  • This study introduces a novel approach using nanocrystalline films of the metal-organic framework (MOF) Cr(1,2,3-triazolate) to differentiate anions based on their size, which influences the reversible oxidation process of the MOF.
  • The research demonstrates the effectiveness of this method by creating a highly sensitive and recyclable electrochemical sensor for ClO in water that can detect concentrations as low as 100 nM, showcasing the potential of MOFs for advanced anion sensing applications.
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Dietary restriction of the sulfur-containing amino acids methionine and cysteine (SAAR) improves body composition, enhances insulin sensitivity, and extends lifespan; benefits seen also with endurance exercise. Yet, the impact of SAAR on skeletal muscle remains largely unexplored. Here we demonstrate that one week of SAAR in sedentary, young, male mice increases endurance exercise capacity.

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Nicotinamide adenine dinucleotide (NAD) is essential for many enzymatic reactions, including those involved in energy metabolism, DNA repair and the activity of sirtuins, a family of defensive deacylases. During aging, levels of NAD can decrease by up to 50% in some tissues, the repletion of which provides a range of health benefits in both mice and humans. Whether or not the NAD precursor nicotinamide mononucleotide (NMN) extends lifespan in mammals is not known.

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Despite the extensive research successes and continuous developments in modern medicine in terms of diagnosis, prevention, and treatment, the lack of clinically useful disease-modifying drugs or immunotherapeutic agents that can successfully treat or prevent neurodegenerative diseases is an ongoing challenge. To date, only one of the 244 drugs in clinical trials for the treatment of neurodegenerative diseases has been approved in the past decade, indicating a failure rate of 99.6%.

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At present, there is no internationally accepted set of core outcomes or measurement methods for epilepsy clinical practice. The International Consortium for Health Outcomes Measurement (ICHOM) convened an international working group of experts in epilepsy, people with epilepsy, and their representatives to develop minimum sets of standardized outcomes and outcome measurement methods for clinical practice. Using modified Delphi consensus methods with consecutive rounds of online voting over 12 months, a core set of outcomes and corresponding measurement tool packages to capture the outcomes were identified for infants, children, and adolescents with epilepsy.

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Genetically heterogeneous UM-HET3 mice born in 2020 were used to test possible lifespan effects of alpha-ketoglutarate (AKG), 2,4-dinitrophenol (DNP), hydralazine (HYD), nebivolol (NEBI), 16α-hydroxyestriol (OH_Est), and sodium thiosulfate (THIO), and to evaluate the effects of canagliflozin (Cana) when started at 16 months of age. OH_Est produced a 15% increase (p = 0.0001) in median lifespan in males but led to a significant (7%) decline in female lifespan.

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