Publications by authors named "Larsen D"

In the past 20 years, sulfur hexafluoride (SF) has been considered a highly reliable tracer for assessing modern water (< 65 yrs old) in groundwater. However, modern-air contamination may introduce complications in interpreting data obtained using current sampling methods. A new airtight methodology isolates the sample from modern ambient air; thus, returning more reproducible and reliable results when compared to two traditional (air-sensitive and non-airtight) methods.

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Endometriosis, though not classified as a carcinogenic condition, shares features such as oxidative stress, migration, invasion, angiogenesis, and inflammation with tumor cells. This study aims to review the effects of flavonoids on these processes and their molecular mechanisms in preventing and treating endometriosis. A comprehensive review was conducted, involving a literature search in online databases using keywords like "endometriosis," "endometrioma," and "flavonoid.

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Background/objectives: L. is rich in mucilage and is traditionally used for the management of numerous ailments including gastrointestinal disorders. Functional constipation (FC) is a gastrointestinal condition characterized by defecation anomalies such as infrequent stools, difficulty in stool passage, or both in the absence of pathological abnormalities.

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Infectious disease surveillance systems, including wastewater surveillance, can alert communities to the threat of emerging pathogens. We need methods to infer understanding of transmission dynamics from non-detection. We estimate a sensitivity of detection of poliovirus in wastewater to inform the sensitivity of wastewater surveillance for poliovirus using both a clinical epidemiology and fecal shedding approach.

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Purpose: To examine the outcome of palliative endoscopic treatment of malignant central airway obstruction (CAO) and identify predictors for Days Alive and Out of Hospital (DAOH), overall survival and treatment related complications.

Methods: Consecutive adult patients treated endoscopically for malignant CAO at Aarhus University Hospital from 2012 to 2022 were included in the study. Statistical analyses were carried out to identify predictors for DAOH, survival and complications.

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High frequency repetitive transcranial magnetic stimulation (rTMS) to the posterior-superior insula (PSI) may produce analgesic effects. However, the alterations in cortical activity during PSI-rTMS analgesia remain poorly understood. The present study aimed to determine whether tonic capsaicin-induced pain and cortical inhibition (indexed using TMS-electroencephalography) are modulated by PSI-rTMS.

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Cancer is a significant global health concern, responsible for mortality and morbidity of individuals. It is characterized by uncontrolled cellular growth, tumor formation, and potential metastasis. The immune system is pivotal in recognizing and eliminating cancerous cells, with immune cells such as T cells, B cells, natural killer cells (NK), and dendritic cells playing critical roles.

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Chronic kidney disease (CKD) is common and leads to significant morbidity and mortality. Early detection and deployment of effective therapies could prevent CKD progression and related cardiovascular diseases. This review provides a case-based overview of key issues surrounding the diagnosis, staging, and management of CKD.

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Article Synopsis
  • Large wastewater-based epidemiology (WBE) projects require spatial data aggregation for effective reporting, but this can introduce a statistical bias known as the modifiable areal unit problem (MAUP).
  • A study focused on a New York State COVID-19 wastewater surveillance project revealed that MAUP can obscure high-risk areas while enhancing the correlation between wastewater data and clinical indicators by 26.02%.
  • This research is the first to assess MAUP's effect in the WBE context, suggesting that future projects should account for MAUP to improve data representation and accuracy.
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In 2021, an ultra-rapid rollout vaccination campaign in the Schwaz district, Tyrol, Austria, delivered the COVID-19 vaccine BNT162b2 to 66.9% of eligible residents (dose 1: March 11-16, dose 2: April 8-13). Alongside the campaign, we recruited 11,955 residents into the prospective study REDUCE, of whom 3,859 participated in a booster vaccination initiative (November 20-28, 2021).

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  • Wastewater-based surveillance has emerged since 2020 as a valuable and economical method for tracking public health, but must prioritize justice to ensure global health equity.
  • Current ethics discussions on this topic have mainly focused on privacy and legality in North America and Western Europe, neglecting broader global implications.
  • The authors propose a justice-centered framework using Nancy Fraser's theories to address issues like community definition, transparency, and inequalities, advocating for fair outcomes rather than strict regulations in varying contexts.
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The risk of cardiovascular disease (CVD) is approximately doubled in subjects with hypercholesterolemia compared to those with normal blood cholesterol levels. Monacolin K (MK), the main active substance in rice fermented by the , acts on cholesterol metabolism. Rice also contains other bioactive compounds such as γ-oryzanol (OZ) and γ-aminobutyric acid (GABA).

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  • * In healthy cells, the homologous recombination (HR) process for rDNA stability is similar to that in other parts of the genome but is disrupted in BLM-deficient cells.
  • * Without Bloom helicase (BLM), rDNA can still attract RAD51, which causes genomic instability and micronuclei formation, indicating broader implications for genome integrity.
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The Institute for Healthcare Improvement Framework for Improving Joy at Work includes self-care as a strategy to support happy, healthy, and productive people; however, this relationship has not previously been empirically demonstrated. The purpose of this study was to describe self-care practices and levels of meaning and joy in work (MJW) in a sample of registered nurses and to explore the relationship between self-care and MJW. Registered nurses (n = 122) from a regional health system completed a survey during a nursing recognition event.

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  • Treatment with glucocorticoids after cataract surgery in children is important to avoid inflammation but can increase the risk of secondary glaucoma.
  • This study compared outcomes of high-dose versus low-dose glucocorticoid treatment in Danish children after cataract surgery, analyzing data from over 267 cases.
  • Results indicated that low-dose treatment was linked to a lower risk of glaucoma for children with larger axial lengths (≥18 mm), while high-dose glucocorticoids may need to be restricted in these patients.
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A study on 81 individuals (18-75 years old) with mildly impaired fasting blood glucose (FBG) concentrations (98-125 mg/dL) was undertaken to investigate the tolerability of a food supplement (FS) based on and extracts, zinc, and chromium and its efficacy on glucose and lipid metabolism. The subjects were randomized into three groups (27 in each group) and supplemented with one or two tablet(s)/day of FS (groups 1 and 2, respectively), or two tablets/day of placebo (group 3). Blood sampling was carried out at baseline (t0) and after a 3-month treatment (t1), and biochemical parameters associated with glucose and lipid metabolism and kidney and liver toxicity were evaluated.

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Structural disorder in proteins is central to cellular signaling, where conformational plasticity equips molecules to promiscuously interact with different partners. By engaging with multiple binding partners via the rearrangement of its three helices, the nuclear coactivator binding domain (NCBD) of the CBP/p300 transcription factor is a paradigmatic example of promiscuity. Recently, molecular simulations and experiments revealed that, through the establishment of long-range electrostatic interactions, intended as salt-bridges formed between the post-translationally inserted phosphate and positively charged residues in helix H3 of NCBD, phosphorylation triggers NCBD compaction, lowering its affinity for binding partners.

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Eukaryotic nuclei are structured into sub-compartments orchestrating various cellular functions. The nucleolus is the largest nuclear organelle: a biomolecular condensate with an architecture composed of immiscible fluids facilitating ribosome biogenesis. The nucleolus forms upon the transcription of the repetitive ribosomal RNA genes (rDNA) that cluster in this compartment.

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Objectives: The primary objective of this study is to investigate if false vocal folds (FVF) or simultaneous FVF with thyroarytenoid (FVF+TA) Botox® injections achieve comparable treatment effects to standard TA injections. This study also aims to determine how patient-reported outcomes contribute to the transition to, and continuation of, FVF or FVF+TA injections.

Methods: Retrospective chart review was performed for all patients receiving Botox® for adductor spasmodic dysphonia at a laryngology practice between 2005 and 2018.

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Homeostatic plasticity is a mechanism that stabilizes cortical excitability within a physiological range. Most homeostatic plasticity protocols have primed and tested the homeostatic response of the primary motor cortex (M1). This study investigated if a homeostatic response could be recorded from the primary sensory cortex (S1) after inducing homeostatic plasticity in M1.

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  • Newly diagnosed type 2 diabetes patients need to quickly learn self-care and management skills, making effective assessment by clinicians essential for teaching.
  • A study developed a 12-item Diabetes Management Skills Knowledge Assessment (DM-SKA) based on existing research and feedback from clinicians, patients, and caregivers.
  • The DM-SKA was found to be important for patient education and was deemed accessible, with participants of diverse ethnic backgrounds showing a similar willingness and understanding level.
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Wastewater-based epidemiology (WBE) has been widely implemented around the world as a complementary tool to conventional surveillance techniques to inform and improve public health responses. Currently, wastewater surveillance programs in the U.S.

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  • Understanding protein-protein interactions is vital for drug design, and several techniques like CryoEM, X-ray spectroscopy, and mass spectrometry are used to identify protein binding sites.
  • The study proposes a new method for epitope mapping using Fenton chemistry, emphasizing the need for control experiments, particularly negative antibody controls, and employs TMT labeling for better quantification and fewer false positives.
  • Findings from analyzing the SARS-CoV-2 Spike Protein RBD highlight significant structural changes when mixed with a negative control antibody, reinforcing the importance of control experiments and enhancing the reliability of the method in a typical mass spectrometry lab.
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Patients undergoing cardiopulmonary bypass procedures require inotropic support to improve hemodynamic function and cardiac output. Current inotropes such as dobutamine, can promote arrhythmias, prompting a demand for improved inotropes with little effect on intracellular Ca flux. Low-dose carbon monoxide (CO) induces inotropic effects in perfused hearts.

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