Publications by authors named "J Mark Madison"

Clinical tools that can aid in the diagnostic differentiation of juvenile dermatomyositis from muscular dystrophy.

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  • - Leptospirosis, a disease caused by bacteria prevalent mostly in tropical areas, is transmitted through contact with infected rat urine or contaminated environments, with brown rats being key urban reservoirs.
  • - A study conducted in Boston from 2016-2022 involved analyzing DNA from 328 rat kidney samples, revealing that 59 rats were positive for leptospirosis and indicating significant genetic structure and limited dispersal among rat populations.
  • - The researchers discovered distinct genetic clades of the bacteria linked to specific rat groups, suggesting that rat movement influences the spread of leptospirosis, and indicated a connection between the disease in humans and urban rat populations based on genomic analysis.
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  • Neutrophil hyperactivity and NET release are key factors in the autoimmune disease antiphospholipid syndrome (APS).
  • Research shows that neutrophils from APS patients have a higher reliance on glycolysis compared to those from healthy individuals, particularly in cases linked to microvascular disease.
  • Inhibiting glycolysis or the pentose phosphate pathway (PPP) not only reduces NET release and reactive oxygen species production in neutrophils but also significantly decreases thrombosis in mice models of APS.
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Our study aimed to evaluate the presence, clinical associations, and potential mechanistic roles of non-criteria antiphospholipid antibodies (aPL) and circulating calprotectin, a highly stable marker of neutrophil extracellular trap release (NETosis), in pediatric APS patients. We found that 79% of pediatric APS patients had at least one non-criteria aPL at moderate-to-high titer. Univariate logistic regression demonstrated that positive anti-beta-2 glycoprotein I domain 1 (anti-D1) IgG (p = 0.

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In this issue of , Maher et al. report the results of a randomized, controlled, 22-day treatment crossover trial comparing the antitussive effect of extended-release nalbuphine, an opioid agonist-antagonist, with placebo in a cohort of patients with definite or probable idiopathic pulmonary fibrosis (IPF). In this small, short-term trial of 38 evaluable patients, the active drug was associated with a 75.

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