Publications by authors named "M Le Gal"

Article Synopsis
  • - The Wales COVID-19 Evidence Centre (WCEC) was created from 2021-23 to provide timely research evidence to inform health and social care decisions amidst the fast-paced challenges of the pandemic.
  • - The WCEC employed flexible knowledge mobilisation methods, including stakeholder co-production and public engagement, to ensure that relevant findings reached the right decision-makers effectively.
  • - Results showed that WCEC's processes successfully facilitated the use of rapid evidence reviews, although realizing public benefits from this work will require additional time and resources.
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In this study, a phytochemical investigation on the methanol extract of Potentilla chinensis led to the isolation of eleven triterpenoids including ursolic acid (1), pomolic acid (2), tormentic acid (3), 2-epi-corosolic acid (4), 3-epi-corosolic acid (ECA, 5), 3β-hydroxyurs-11-en-13β(28)-olide (6), euscaphic acid (7), 2-epi-tormentic acid (8), corosolic acid (9), uvaol (10), and 3-O-acetylpomolic acid (11). Among them, ECA (5) showed potential anti-osteoclastogenic activity. To the best of our knowledge, this represents the first isolation of ECA (5) from P.

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Ubiquitin (Ub) signals are recognized and decoded into cellular responses by Ub-receptors, proteins that tether the Ub-binding domain(s) (UBDs) with response elements. Typically, UBDs bind mono-Ub in highly dynamic and weak affinity manners, presenting challenges in identifying and characterizing their binding interfaces. Here, we report the development of a new approach to facilitate the detection of these weak interactions using split-reporter systems where two interacting proteins are proximally co-translated from a single mRNA.

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Article Synopsis
  • - Cysteine is crucial for making glutathione, which protects plants from stress, and methionine, important for cell growth and protein synthesis.
  • - Under oxidative stress, glutathione competes with methionine for cysteine, with elevated oxidized glutathione (GSSG) levels suppressing methionine production by accelerating the breakdown of a key enzyme involved in its synthesis.
  • - This study uncovers a feedback loop where glutathione promotes cysteine’s use for stress protection at the expense of methionine production, revealing a complex relationship affecting plant growth and nutritional quality under stress.
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The rapid and accurate detection of SARS-CoV-2, particularly its spike receptor-binding domain (S-RBD), was crucial for managing the COVID-19 pandemic. This study presents the development and optimization of two types of aptasensors: quartz crystal microbalance (QCM) and electrochemical sensors, both employing thiol-modified DNA aptamers for S-RBD detection. The QCM aptasensor demonstrated exceptional sensitivity, achieved by optimizing aptamer concentration, buffer composition, and pre-treatment conditions, with a limit of detection (LOD) of 0.

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