Publications by authors named "J Figge"

Molecular testing (MT) is commonly used to refine cancer probability in thyroid nodules with indeterminate cytology. Whether or not ultrasound (US) patterns and clinical parameters can further inform the risk of thyroid cancer in nodules predicted to be positive or negative by MT remains unknown. The aim of this study was to test if clinical parameters, including patient age, sex, nodule size (by US), Bethesda category (III, IV, V), US pattern (American Thyroid Association [ATA] vs.

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Article Synopsis
  • About 20% of fine-needle aspirations (FNAs) of thyroid nodules yield indeterminate results, often classified under Bethesda categories III or IV, and diagnosing these nodules accurately can potentially reduce unnecessary surgeries.
  • A study was conducted involving 782 patients with 1013 thyroid nodules to assess the effectiveness of a multigene classifier test (ThyroSeq v3) in distinguishing benign from malignant nodules.
  • The results showed that the test had a high sensitivity of 94% and a specificity of 82%, with a negative predictive value of 97%, effectively identifying benign nodules and helping to prevent surgery in low-risk cases.
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B-1 cells constitute a unique subpopulation of lymphocytes residing mainly in body cavities like the peritoneal cavity (PerC) but are also found in spleen and bone marrow (BM). As innate-like B cells, they mediate first line immune defense through low-affinity natural IgM (nIgM) antibodies. PerC B-1 cells can egress to the spleen and differentiate into nIgM antibody-secreting plasma cells that recognize conserved exogenous and endogenous cellular structures.

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Background: Quantitative relationships among plasma [Lactate], [Pi], [Albumin], unmeasured anions ([UA]) and the anion gap (AG) in lactic acidosis (LA) are not well defined.

Methods: A mathematical model featuring compensatory potassium and chloride shifts and respiratory changes in LA demonstrated: (1) AG=[Lactate]+Zp×[Pi]+2.4×[Albumin]+constant1+e, where Zp is a function of pH, and e reflects unmeasured anions and cations plus pH-related variations.

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The biological significance of C5a receptor [(C5aR)2/C5L2], a seven-transmembrane receptor binding C5a and C5adesArg, remains ill-defined. Specific ligation of C5aR2 inhibits C5a-induced ERK1/2 activation, strengthening the view that C5aR2 regulates C5aR1-mediated effector functions. Although C5aR2 and C5aR1 are often coexpressed, a detailed picture of C5aR2 expression in murine cells and tissues is still lacking.

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