Publications by authors named "A J Muslin"

Background: Eluxadoline, a peripherally acting, mixed µ- and κ-opioid receptor (OR) agonist and δ-OR antagonist, is approved for treatment of adults with irritable bowel syndrome-diarrhea (IBS-D). About a third of IBS-D patients has bile acid diarrhea (BAD); opioids may stimulate TGR5 (bile acid) receptors.

Aim: To evaluate eluxadoline's efficacy on altered bowel functions and safety in IBS-D patients with or without BAD.

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Aims: SAR247799 is a G-protein-biased sphingosine-1 phosphate receptor-1 (S1P ) agonist designed to activate endothelial S1P and provide endothelial-protective properties, while limiting S1P desensitization and consequent lymphocyte-count reduction associated with higher doses. The aim was to show whether S1P activation can promote endothelial effects in patients and, if so, select SAR247799 doses for further clinical investigation.

Methods: Type-2 diabetes patients, enriched for endothelial dysfunction (flow-mediated dilation, FMD <7%; n = 54), were randomized, in 2 sequential cohorts, to 28-day once-daily treatment with SAR247799 (1 or 5 mg in ascending cohorts), placebo or 50 mg sildenafil (positive control) in a 5:2:2 ratio per cohort.

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Aims: SAR247799 is a selective G-protein-biased sphingosine-1 phosphate receptor-1 (S1P ) agonist with potential to restore endothelial function in vascular pathologies. SAR247799, a first-in-class molecule differentiated from previous S1P -desensitizing molecules developed for multiple sclerosis, can activate S1P without desensitization and consequent lymphopenia. The aim was to characterize SAR247799 for its safety, tolerability, pharmacokinetics and pharmacodynamics (activation and desensitization).

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Article Synopsis
  • * Researchers identified a selective drug called SAR247799 that activates S1P without triggering receptor desensitization, promoting protective pathways in endothelial cells and improving blood flow in models of coronary and renal injury.
  • * Unlike existing S1P antagonists that can worsen tissue damage, SAR247799 retains immune function while offering a potential new treatment strategy for conditions linked to endothelial dysfunction and vascular problems.
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Aims: Despite improvements in patient identification and management, heart failure (HF) remains a major public health burden and an important clinical challenge. A variety of animal and human studies have provided evidence suggesting a central role of calcium/calmodulin-dependent protein kinase II (CaMKII) in the development of pathological cardiac remodelling and HF. Here, we describe a new potent, selective, and orally available CaMKII inhibitor.

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