Publications by authors named "R J Muirhead"

Article Synopsis
  • Squamous cell carcinoma of the anus (SCCA) can come back after treatment, and identifying responses early is key for personalized care, but current data on imaging biomarkers is limited and often conflicting.
  • The study analyzed data from four trials, looking at diffusion-weighted MRI scans to see if changes in the tumor's apparent diffusion coefficient (ADC) could predict treatment failure during chemoradiotherapy.
  • Results showed that while a change in ADC could indicate different rates of locoregional failure, no ADC-based metrics significantly predicted treatment failure overall, highlighting the need for more comprehensive studies on radiological biomarkers in the future.
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Background: Weight loss through lifestyle interventions, notably low-energy diets, offers glycemic benefits in populations with overweight-associated prediabetes. However, >50% of these individuals fail to achieve normoglycemia after weight loss. Circulating lipids hold potential for evaluating dietary impacts and predicting diabetes risk.

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Amyloid-β pathology and neurofibrillary tangles lead to glial activation and neurodegeneration in Alzheimer's disease. In this study, we investigated the relationships between the levels of amyloid-β oligomers, amyloid-β plaques, glial activation and markers related to neurodegeneration in the triple mutation mouse line and in a knock-in line homozygous for the common human amyloid precursor protein ( mouse). The relationships between neuropathological features were characterized with immunohistochemistry and imaging mass cytometry.

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Background: Lifestyle interventions can prevent type 2 diabetes (T2D) by successfully inducing behavioral changes (eg, avoiding physical inactivity and sedentariness, increasing physical activity and/or healthy eating) that reduce body weight and normalize metabolic levels (eg, HbA1c). For interventions to be successful, it is important to influence "behavioral mechanisms" such as self-efficacy, which motivate behavioral changes. Theory-based expectations of how self-efficacy, chronic stress, and mood changed over time were investigated through a group-based behavior change intervention (PREMIT).

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