Publications by authors named "MACLEOD A"

Background: International guidelines give greatly varying definitions of 25-hydroxyvitamin D (25OHD) insufficiency and deficiency. Vitamin D testing is increasing despite 2016 UK guidance for adults advising routine vitamin D supplementation October-March and year-round for high risk groups. A service evaluation of vitamin D testing and biochemical osteomalacia in the North-East of Scotland (57-58°N) could inform definitions and testing guidance.

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Speech sound disorders (SSD) are associated with difficulties in communication, social participation, literacy, and learning. An early identification process is therefore necessary. Our study was aimed at determining the utility and accuracy of parent's and teacher's concerns in screening for SSD.

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Results from applying an advanced spatial-unfolding technique to outdoor-trial data acquired with a Silicon photomultiplier-based Compton Telescope for Safety and Security (SCoTSS) gamma imager during perimeter survey of a distributed La-140 source lying within a 500 m x 500 m exclusion zone are presented. A synthetic-data version of the experiment was also modelled using Monte Carlo simulations and reconstructed. For both experimental and synthetic data the method faithfully reproduces the shape of the activity distribution, and for synthetic data the total activity is reproduced as well.

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We are pleased to present our Special Issue on Participatory Research. In this editorial, we outline how the disability rights movement has been instrumental to the development of participatory approaches, before giving consideration to some of the debates and criticisms associated with participatory research in practice. We summarise the contributions offered by the studies within this issue and propose four areas of consideration, drawn from the body of included research, to inform future developments.

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Article Synopsis
  • Dynamic assessment can serve as a diagnostic tool and broaden its application as a curriculum-based measure to observe teaching moments and intervention elements in speech sound disorder treatment.
  • The study used the Glaspey Dynamic Assessment of Phonology to analyze teaching moments and children's skill development among two boys with speech sound disorders, while noting differences in treatment outcomes.
  • Results showed that dynamic assessment effectively tracked progress during treatment and suggested a need for further research to establish clearer goals, indicating its potential to enhance both assessment and intervention strategies.
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Aberrant activation of NLRP3 due to persistent tissue damage, misfolded proteins or crystal deposits has been linked to multiple chronic inflammatory disorders such as cryopyrin-associated periodic syndrome (CAPS), neurodegenerative diseases, gouty arthritis, and numerous others. Hence, there has been an increasing interest in NLRP3 inhibitors as therapeutics. A first generation of NLRP3 inhibitors bearing a sulfonylurea core such as MCC950 (developed by Pfizer) were discovered by phenotypic screening, however their mode of action was only elucidated later.

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  • Schistosomiasis is a widespread disease in Côte d'Ivoire, and a study compared the conventional Kato Katz (KK) test with the more sensitive point-of-care circulating cathodic antigen (POC-CCA) test to improve control strategies for intestinal schistosomiasis.
  • A survey involving 554 schoolchildren from eight elementary schools found that the prevalence of intestinal schistosomiasis was significantly higher when using the POC-CCA (67%) compared to the KK test (10%), highlighting the need for more effective diagnostic methods.
  • Activities such as swimming and fishing were linked to higher infection rates, indicating a strong association between lifestyle choices and schistosomiasis prevalence, suggesting the necessity for targeted interventions.
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  • A six-year-old spayed female Siberian Husky presented with cervical pain, ataxia, respiratory changes, and significant weight loss, leading to a battery of diagnostic tests.
  • Findings indicated serious health issues, including spinal myelopathy and signs suggestive of metastatic carcinoma, prompting humane euthanasia and further investigation through necropsy.
  • The necropsy revealed multiple tumors consistent with cholangiocellular carcinoma, highlighting challenges in prior diagnostics and an unusual presentation with cervical pain likely linked to spinal metastasis.
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Food fraud is an ever-present threat that regulators, food business operators (FBOs), and consumers need to be aware of, prevent where possible, and address by developing mitigation strategies to detect and reduce its negative consequences. While extant literature focuses on food fraud detection, there is less attention given to prevention strategies, a knowledge gap this review seeks to address. The aim of this review was to consider food-related fraud prevention initiatives, understand what has worked well, and develop a series of recommendations on preventing food fraud, both policy related and for future research.

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The prospect of death is everywhere, but seldom directly addressed, in undergraduate medical education (UGME). Despite calls for UGME curricula to address the complex social and emotional aspects of death and dying, most curricula focus on biomedical, legal, and logistical aspects, or concentrate these topics within palliative care content and/or in simulations with simulated patients and manikins. We aimed to add to death education scholarship by exploring the complexities of death and dying within two dimensional simulations-i.

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Physiologists may play critical roles in the development of clinician-scientists who aspire to an academic career. The complexity of contemporary biomedical science and economic matters regarding postgraduate education pose real conundrums. We report a more than 22-year follow-up of surgical trainees pursuing bench laboratory science experience through a collaboration between a physiology postgraduate program and a surgical researcher program within a single public medical school.

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  • The EFSA Panel on Plant Health conducted an assessment of non-EU Scolytinae species that affect non-coniferous plants in the EU, highlighting 5220 relevant species out of an initial 6495.
  • These beetles primarily target weakened or dead trees, with behaviors ranging from monogamous to polygynous mating systems, and many species are associated with fungi that help them weaken their hosts.
  • A database was created documenting host plants, feeding habits, geographic distribution, and climate types, ultimately identifying 88 species that significantly impact plant health, categorized by their level of threat.
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In accordance with the EFSA Strategy 2027 outlining the need for fit-for-purpose protocols for EFSA generic scientific assessments, the EFSA Panel on Plant Health (PLH Panel) developed standard protocols to harmonise the problem formulation process and outputs for mandates addressing recurrent scientific questions. Three types of recurring EFSA plant health mandates require generic scientific assessments: (i) pest categorisation; (ii) commodity risk assessment for the purpose of derogation to provisions of the EU plant health law and (iii) quantitative pest risk assessment. The three standard protocols are tailored to the appropriate level of detail and build on the existing guidance documents laying out the methods for conducting risk assessment in the plant health domain.

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Purpose: Enhanced histological detection of clinically significant prostate cancer is the goal of the prebiopsy imaging pathway. Risk stratification at a prebiopsy meeting can facilitate optimization of lesion targeting. We aimed to evaluate the feasibility of cognitive registration, freehand transperineal prostate biopsy in a biopsy-naïve population following biparametric MRI for the detection of clinically significant disease (International Society of Urological Pathology Grade Group ≥2).

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  • The study investigates the presence of African trypanosomes in the skin of individuals at risk for gambiense Human African Trypanosomiasis (gHAT) in Guinea, finding that a significant number of seropositive individuals carry the parasites in their dermal layers.
  • Out of nearly 19,000 screened participants, 96 were included, revealing dermatological symptoms to be more common in seropositive individuals compared to seronegative ones.
  • Follow-up showed a decrease in skin parasite detection post-treatment, but a notable percentage of untreated seropositive individuals continued to test positive, highlighting potential challenges in achieving gHAT elimination.
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  • Palmoplantar pustulosis (PPP), palmoplantar psoriasis (palmPP), and dyshidrotic palmoplantar eczema (DPE) are inflammatory skin conditions that can be difficult to distinguish from one another due to similar clinical presentations.
  • Recent RNA sequencing studies of these conditions revealed overlapping inflammatory responses, particularly involving proinflammatory cytokines and immune processes, alongside unique features for each disease.
  • The findings suggest that current classifications based on clinical symptoms may be insufficient, emphasizing the need for a better molecular understanding of these diseases to improve diagnosis and treatment.
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The European Commission requested the EFSA Panel on Plant Health to deliver a risk assessment on the likelihood of pest freedom from Union quarantine pests and pests subject to measures adopted pursuant to Article 30 of Regulation (EU) No 2016/2031 for the maple veneer sheets manufactured according to the process set out by Canada, with emphasis on the freedom from and (non-EU isolates). The assessment was conducted for veneer sheets of up to 0.7 mm and up to 6 mm thickness, taking into account the different phases in the veneer production in a systems approach.

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The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in Commission Implementing Regulation (EU) 2018/2019 as 'High risk plants, plant products and other objects'. This Scientific Opinion covers plant health risks posed by potted plants and bundles of bare-root plants or cell grown young plants or graftwood/budwood of imported from the United Kingdom, taking into account the available scientific information, including the technical information provided by the UK. All pests associated with the commodities were evaluated against specific criteria for their relevance for this opinion.

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Pest categorisation of .

EFSA J

July 2024

The EFSA Panel on Plant Health performed a pest categorisation of (Hemiptera: Matsucoccidae), the Massonian pine bast scale, for the EU territory. This pest categorisation was initiated following the commodity risk assessment of artificially dwarfed plants from China consisting of (Japanese white pine) grafted on (Japanese black pine) performed by EFSA, in which was identified as a pest of possible concern. However, its identity is not firmly established due to uncertainty regarding its taxonomic relationship with (Green), a species widespread in Europe.

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An advanced spatial-unfolding technique capable of reconstructing the activity distribution within an exclusion zone from Compton gamma imager measurements taken outside of it is introduced. Although the method is generally applicable to extended sources, we demonstrate it here on a calibrated Cs-137 point source through Monte Carlo simulation studies as well as with measurements made using a Silicon Compton Telescope for Safety and Security (SCoTSS) gamma imager. For synthetic data the method accurately reconstructs the total activity contained within the mapped zone of interest, even when the size of the basis elements used to reconstruct the activity distribution is larger than the source itself.

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Pest categorisation of .

EFSA J

July 2024

Article Synopsis
  • The European Commission asked the EFSA Panel on Plant Health to categorize the pest Maskell, also known as the pink wax scale, identified as a potential threat to the EU due to commodity risk assessments of plants from China.
  • This pest originates from Africa, attacks over 193 types of plants, mainly tropical and subtropical species, and has been in Germany since 2010, posing significant risks to various crops and ornamental plants.
  • With its ability to reproduce parthenogenetically and potentially spread via trade and natural means, introductions of this pest into the EU could lead to outbreaks, but effective phytosanitary measures exist to control its entry and spread.
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Pest categorisation of .

EFSA J

July 2024

The EFSA Panel on Plant Health performed a pest categorisation of (Lepidoptera, Limacodidae), following the commodity risk assessment of plants grafted on from China, in which was identified as a pest of possible concern to the European Union. This species can be identified by morphological taxonomic keys and by barcoding. The adults of the overwintering generation emerge from late June to late August.

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Pest categorisation of .

EFSA J

July 2024

The European Commission requested the EFSA Panel on Plant Health to conduct a pest categorisation of (Ellis & Everh) Sutton, following commodity risk assessments of , , and plants from the UK, in which was identified as a pest of possible concern to the EU. When first described, was a clearly defined fungus of the family Schizoparmaceae, but due to lack of a curated type-derived DNA sequence, current identification based only on DNA sequence is uncertain and taxa previously reported to be this fungus based on molecular identification must be confirmed. The uncertainty on the reported identification of this species translates into uncertainty on all the sections of this categorisation.

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Following a request from the European Commission, the EFSA Panel on Plant Health performed a quantitative risk assessment for the EU of (Coleoptera: Curculionidae), a polyphagous pest occurring in Australia, New Zealand and South Africa. The current risk assessment focused on potential pathways for entry, the climatic conditions allowing establishment, the expected spread capacity and the impact considering a time horizon of 10 years (2023-2032). The Panel identified the import of apples, cut flowers and table grapes as the most relevant entry pathways.

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