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    11β-Hydroxysteroid dehydrogenase 1 (11βHSD1) is a drug target to attenuate adverse effects of chronic glucocorticoid excess. It catalyses intracellular regeneration of active glucocorticoids in tissues including brain, liver and adipose tissue (coupled to hexose-6-phosphate dehydrogenase, H6PDH). 11βHSD1 activity in individual tissues is thought to contribute significantly to glucocorticoid levels at those sites, but its local contribution vs glucocorticoid delivery via the circulation is unknown. Here, we hypothesised that hepatic 11βHSD1 would contribute significantly to the circulating pool. This was studied in mice with Cre-mediated disruption of Hsd11b1 in liver (Alac-Cre) vs adipose tissue (aP2-Cre) or whole-body disruption of H6pdh. Regeneration of [9,12,12-2H3]-cortisol (d3F) from [9,12,12-2H3]-cortisone (d3E), measuring 11βHSD1 reductase activity was assessed at steady state following infusion of [9,11,12,12-2H4]-cortisol (d4F) in male mice. Concentrations of steroids in plasm

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    • 📢 New reasearch: Contribution of local regeneration of #glucocorticoids to tissue steroid pools By S Khan (@shazias51) et al. @EdinUniCVS @EdinburghUni @RuthAndrewMSEd Read this open-access article 🆓👉 https://t.co/bB68ne3gNu https://t.co/oEBg422isl

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    Objectives Macrophage activation syndrome (MAS) is a severe, life-threatening complication of systemic juvenile idiopathic arthritis (sJIA) and adult-onset Still’s disease (AOSD). The objective of this study was to confirm the adequacy of an emapalumab dosing regimen in relation to interferon-γ (IFNγ) activity by assessing efficacy and safety. The efficacy outcome was MAS remission by week 8,…

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    • ⚠️ #MAS is a life-threatening complication of #sJIA & #AOSD 🔥 ⚗️ #emapalumab -anti-IFNγ- was administered to 14 pts who had previously failed high-dose #glucocorticoids, with or without #anakinra and/or #ciclosporin 📉 remission in 13/14 pts 👉 Link: https://t.co/L96b8wdXjX https://t.co/kv2K1DwPAh

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    Glucocorticoids are sometimes used as “bridging” therapy to alleviate symptoms in newly diagnosed patients with rheumatoid arthritis until a disease-modifying antirheumatic drug (DMARD) kicks in. Test your knowledge of bridging therapy with this quiz.

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    • #Glucocorticoids are sometimes used as “bridging” therapy to alleviate symptoms in newly diagnosed patients with #RheumatoidArthritis until a disease-modifying antirheumatic drug (DMARD) kicks in. Test your knowledge of bridging therapy with this quiz. https://t.co/55pCbkDkH2