Publications by authors named "West L"

Parainfluenza virus type 5 (PIV5) can cause either persistent or acute/lytic infections in a wide range of mammalian tissue culture cells. Here, we have generated PIV5 fusion (F)-expressing helper cell lines that support the replication of F-deleted viruses. As proof of the principle that F-deleted single-cycle infectious viruses can be used as safe and efficient expression vectors, we have cloned and expressed a humanized (Hu) version of the mouse anti-V5 tag antibody (clone SV5-Pk1).

View Article and Find Full Text PDF

Actively avoiding danger is necessary for survival. Most research on active avoidance has focused on the behavioral and neurobiological processes when individuals learn to avoid alone, within a solitary context. Therefore, little is known about how social context affects active avoidance.

View Article and Find Full Text PDF

Objective: Deep brain stimulation (DBS) targeting the subthalamic nucleus (STN) is a common treatment for motor symptoms of Parkinson's disease but its influence on non-motor symptoms is less clear. Sleep spindles are known to be reduced in patients with Parkinson's disease, but the effect of STN DBS is unknown. The objective of our study was to address this knowledge gap.

View Article and Find Full Text PDF

Background: Sex, as a biological construct, and gender, defined as the cultural attitudes and behaviours attributed by society, may be associated with allograft loss, death, cancer, and rejection. Other factors, such as recipient age and donor sex, may modify the association between sex/gender and post-transplant outcomes.

Objectives: We sought to evaluate the prognostic effects of recipient sex and, separately, gender as independent predictors of graft loss, death, cancer, and allograft rejection following kidney or simultaneous pancreas-kidney (SPK) transplantation.

View Article and Find Full Text PDF

Elevated circulating hepcidin levels have been reported in patients with pulmonary artery hypertension (PAH). Hepcidin has been shown to promote proliferation of human pulmonary artery smooth muscle cells (PASMCs) in vitro, suggesting a potential role in PAH pathogenesis. However, the role of human pulmonary artery endothelial cells (PAECs) as either a source of hepcidin, or the effect of hepcidin on PAEC function is not as well described.

View Article and Find Full Text PDF

Context: Digital exposure notification (EN) systems were widely used to supplement public health case investigations and contact tracing during the 2019 coronavirus disease (COVID-19) pandemic. In Washington State, the state Department of Health (DOH) implemented one such system, WA Notify, which generated ENs based on smartphone Bluetooth proximity detection. However, the privacy preserving measures of this technology prevented collection of information on how users responded after seeing an EN on their device.

View Article and Find Full Text PDF
Article Synopsis
  • A new platform using surface-enhanced Raman spectroscopy (SERS) is developed to selectively detect electrolyte cations by manipulating the position of chromoionophore I (CHI) molecules on silver nanoparticles based on the target ions.* -
  • The detection mechanism involves a conformational change in the CHI molecule due to protonation and deprotonation, enhancing the SERS signal by improving molecular coupling with the electromagnetic field.* -
  • This method can accurately detect calcium and sodium at low concentrations (0.1 μM and 1 μM, respectively) and has been successfully applied to measure calcium levels in undiluted human serum despite potential interference from other substances.*
View Article and Find Full Text PDF

Impulsive choice, defined as choices of a smaller-sooner reward over a larger-later reward, can be reduced by time-based interventions that expose rats to delayed rewards. These interventions improve temporal processing concurrent with reducing impulsive choice. Exposure to delayed reinforcement has produced improvements in self-control after 30 sessions of intervention exposure (Renda et al.

View Article and Find Full Text PDF

Droughts are increasing in frequency and severity globally due to climate change, leading to changes in resource availability that may have cascading effects on animal ecology. Resource availability is a key driver of animal space use, which in turn influences interspecific interactions like intraguild competition. Understanding how climate-induced changes in resource availability influence animal space use, and how species-specific responses scale up to affect intraguild dynamics, is necessary for predicting broader community-level responses to climatic changes.

View Article and Find Full Text PDF
Article Synopsis
  • Amino acids in human milk are crucial for infant development, and maternal lifestyle may affect their composition, but it's unclear how maternal dietary intake influences this.
  • This study analyzed data from the Amsterdam Mother's Milk study involving 123 lactating women to investigate the relationship between maternal amino acid intake and their concentration in breast milk during the first month after childbirth.
  • Results indicated some negative and positive associations between maternal intake and specific amino acids in milk, but these findings were less significant after adjusting for multiple tests, suggesting that protein intake may not significantly impact breast milk amino acid composition in affluent settings.
View Article and Find Full Text PDF

Introduction: Digital exposure notifications are a novel public health intervention used during the COVID-19 pandemic to alert users of possible COVID-19 exposure. We seek to quantify the effectiveness of Washington State's digital exposure notification system, WA Notify, as measured by the number of COVID-19 cases averted during a 1-year period.

Methods: While maintaining individuals' privacy, WA Notify collected data that could be used to evaluate the system's effectiveness.

View Article and Find Full Text PDF

Cultural humility is an oft-studied construct in psychotherapy and supervision and, as such, has multiple definitions and frameworks and is frequently contextualized as the organizing pillar of the multicultural orientation framework (MCO; alongside cultural comfort and cultural opportunities; Davis et al., 2018; Owen, 2013). Many definitions of cultural humility emphasize a high level of self-awareness, openness to feedback, empathy, and curiosity toward others' cultural experiences (Davis et al.

View Article and Find Full Text PDF

Flow-cytometric immune phenotyping is influenced by cryopreservation and inter-laboratory variability limiting comparability in multicenter studies. We assessed a system of optimized, pre-mixed dry-antibody panel tubes requiring small amounts of whole blood for validity, reliability and challenges in a Canadian multicenter study (POSITIVE) with long-distance sample shipping, using standardized protocols. Thirty-seven children awaiting solid-organ transplant were enrolled for parallel immune-phenotyping with both validated, optimized in-house panels and the dry-antibody system.

View Article and Find Full Text PDF

Strontium-90 (Sr) is a major contaminant at nuclear legacy sites. The mobility of Sr is primarily governed by sorption reactions with sediments controlled by high surface area phases such as clay and iron oxides. Sr adsorption was investigated in heterogeneous unconsolidated aquifer sediments, analogous to those underlying the UK Sellafield nuclear site, with grainsizes ranging from gravels to clays.

View Article and Find Full Text PDF

Extreme weather events across coastal environments are expected to increase in frequency under predicted climate change scenarios. These events can impact coastal recreational fisheries and their supporting ecosystems by influencing the productivity of fish stocks or altering behaviours and decision-making among fishers. Using off-site telephone/diary survey data on estuarine and oceanic recreational fishing activity in eastern Australia, we analyse interannual and geographic variability in bream (Acanthopagrus spp) and snapper (Chrysophrys auratus) catch, total effort and total catch per unit effort (CPUE) through a period (2013/2014, 2017/2018 and 2019/2020) that encompassed severe drought, bushfires and flooding.

View Article and Find Full Text PDF

Antipsychotics carry a higher-risk profile than other psychotropic medications and may be prescribed for youth with conditions in which other first-line treatments are more appropriate. This study aimed to evaluate the population-level effect of the Safer Use of Antipsychotics in Youth (SUAY) trial, which aimed to reduce person-days of antipsychotic use among participants. We conducted an interrupted time series analysis using segmented regression to measure changes in prescribing trends of antipsychotic initiation rates pre-SUAY and post-SUAY trial at four U.

View Article and Find Full Text PDF
Article Synopsis
  • * A comprehensive review of 11 randomized controlled trials highlighted significant differences in ARDS definitions and study methods, making it difficult to combine results and analyze outcomes effectively.
  • * To address these issues, researchers created a master protocol template that standardizes trial components and links to common data elements, aiming to improve future pediatric ARDS study consistency and collaboration among researchers.
View Article and Find Full Text PDF
Article Synopsis
  • The study investigates whether deep brain stimulation (DBS) for Parkinson's disease can improve sleep quality, particularly in the early stages of treatment.
  • Polysomnography was conducted over three nights with 14 patients, and sleep patterns were analyzed to see if immediate improvements occurred with the start of DBS.
  • Results showed significant sleep disruptions persisted despite stimulation, suggesting one night of treatment is not enough to affect sleep architecture in these patients.
View Article and Find Full Text PDF

Background: Patients with intermediate-risk prostate cancer are faced with the decision of whether to undergo radical treatment. Decision-making aids, such as Predict Prostate, can empower both clinicians and patients to make treatment decisions with personalised information, but their impact on multi-disciplinary team (MDT) decision-making and uptake of radical treatment remains unknown.

Objective: The objective of this study is to assess the utilisation and utility of Predict Prostate in informing treatment decisions for patients with intermediate-risk prostate cancer.

View Article and Find Full Text PDF

•Adverse events of pembrolizumab have been documented, but more severe gastrointestinal effects are not as well described.•We report a case of a patient with cervical cancer treated with pembrolizumab who developed small bowel obstruction (SBO)•Histological analysis and gastrointestinal workup points to pembrolizumab as likely cause of SBO.

View Article and Find Full Text PDF

In the 1990s, neonates born with severe congenital heart disease faced more than 50% mortality awaiting an ABO-compatible (ABOc) transplant donor. This desperate situation, together with knowledge of gaps in the adaptive immune system in early childhood, led to the clinical exploration of intentional ABO-incompatible (ABOi) heart transplantation. In 2001, West et al.

View Article and Find Full Text PDF

Background: Pediatric heart (HTx) and kidney transplant (KTx) recipients may have lower physical fitness than healthy children. This study sought to quantify fitness levels in transplant recipients, investigate associations to clinical factors and quality of life, and identify whether a quick, simple wall-sit test is feasible as a surrogate for overall fitness for longitudinal assessment.

Methods: Aerobic capacity (6-min walk test, 6MWT), normalized muscle strength, muscle endurance, physical activity questionnaire (PAQ), and quality of life (PedsQL™) were prospectively assessed in transplanted children and matched healthy controls.

View Article and Find Full Text PDF

The zebra finch () is a songbird sold in the pet trade and commonly used in research. In this report, we describe a set of partially overlapping traits shared by 3 birds in 2 broods from the same nest box that included atypical morphologic, developmental, and behavioral characteristics. The most obvious feature of this novel phenotype was feathers exhibiting a clumped appearance, which was accompanied by slow growth, delayed expression of adult plumage traits, and tameness, which we define as a lack of escape response upon handling without behavioral indicators of stress such as rapid breathing.

View Article and Find Full Text PDF

Background: WA Notify was Washington State's smartphone-based COVID-19 digital exposure notification (EN) tool, which was used to help limit the spread of COVID-19 between November 30, 2020, and May 11, 2023. Following the 2022 Washington State Public Health Association Annual Conference, attendees who had WA Notify activated began receiving ENs alerting them to a possible COVID-19 exposure during the conference. A survey was emailed to all conference attendees to measure WA Notify adoption, mechanisms through which attendees received ENs, and self-reported engagement in protective behaviors postexposure.

View Article and Find Full Text PDF