Publications by authors named "R Ian Fryer"

Portal hypertension (PT) commonly occurs in cirrhosis. Nitric oxide (NO) imbalance contributes to PT via reduced soluble guanylyl cyclase (sGC) activation and cGMP production, resulting in vasoconstriction, endothelial cell dysfunction, and fibrosis. We assessed the effects of BI 685509, an NO-independent sGC activator, on fibrosis and extrahepatic complications in a thioacetamide (TAA)-induced cirrhosis and PT model.

View Article and Find Full Text PDF

Unlabelled: Despite dominating fewer headlines, the opioid epidemic continues to plague society. Surgeons have the responsibility to change their opioid prescribing habits while maintaining adequate patient comfort. This study examines the transition to a multimodal, perioperative protocol in an ambulatory surgery setting for abdominoplasty patients.

View Article and Find Full Text PDF

Introduction: Hard armour plates provide coverage to essential anatomical structures in the torso that, if injured, would likely be responsible for death before damage control surgery can be undertaken. Existing front and rear OSPREY plates in conjunction with Mark 2 plates used at the sides in current UK Armed Forces personal armour systems are provided in a single size, used by both female and male users.

Methods: CT scans of 45 female UK military personnel were analysed.

View Article and Find Full Text PDF

Activation of soluble guanylate cyclase (sGC) to restore cyclic guanosine monophosphate (cGMP) and improve functionality of nitric oxide (NO) pathways impaired by oxidative stress is a potential treatment of diabetic and chronic kidney disease. We report the pharmacology of BI 685509, a novel, orally active small molecule sGC activator with disease-modifying potential. BI 685509 and human sGC 1/1 heterodimer containing a reduced heme group produced concentration-dependent increases in cGMP that were elevated modestly by NO, whereas heme-free sGC and BI 685509 greatly enhanced cGMP with no effect of NO.

View Article and Find Full Text PDF

Diabetic nephropathy is a leading cause of end-stage renal disease, characterized by endothelial dysfunction and a compromised glomerular permeability barrier. Dysregulation of the angiopoietin 1 (ANGPT1)/angiopoietin 2 (ANGPT2) signaling axis is implicated in disease progression. We recently described the discovery of an IgG antibody, O010, with therapeutic potential to elevate circulating endogenous ANGPT1, a tyrosine kinase with Ig and epidermal growth factor (EGF) homology domains-2 (TIE2) agonist.

View Article and Find Full Text PDF