J Soc Cardiovasc Angiogr Interv
December 2024
Background: Advancements in cardiac catheterization have improved survival for pediatric congenital heart disease patients, but the associated ionizing radiation risks necessitate ethical consideration.
Methods: This study presents an empirical model, developed from 3131 unique pediatric procedures, to establish alert levels based on a patient's lateral thickness of the thorax for various procedural categories during diagnostic or interventional cardiac catheterization. The model uses linear regression of logarithmic reference air kinetic energy released per unit mass (KERMA) and air KERMA area product, also referred to as dose area product, to set alert levels at the top 95% and 99% of patient data.
Insulin-secreting allogeneic cell therapies are a promising treatment for type 1 diabetes, with the potential to eliminate hypoglycemia and long-term complications of the disease. However, chronic systemic immunosuppression is necessary to prevent graft rejection, and the acute risks associated with immunosuppression limit the number of patients who can be treated with allogeneic cell therapies. Islet macroencapsulation in a hydrogel biomaterial is one proposed method to reduce or eliminate immune suppression; however, macroencapsulation devices suffer from poor oxygen transport and limited efficacy as they scale to large animal model preclinical studies and clinical trials.
View Article and Find Full Text PDFPlant cells are defined by their walls, which, in addition to providing structural support and shape, are an integral component of the nonliving extracellular space called the apoplast. Cell wall thickenings are present in many different root cell types. They come in a variety of simple and more complex structures with varying composition of lignin and suberin and can change in response to environmental stressors.
View Article and Find Full Text PDFThe role of muscle biopsy in the investigation of neuromuscular disease remains firmly established but has evolved. Expertise in diagnostic myopathology remains relevant and supports clinical practice. Neuromuscular disease is rare; thus clinicopathological correlation, or better, collaboration is important.
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