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Table 1 Major clinical manifestations of Alström syndrome and corresponding pre-clinical effects of PBI-4050

From: Treatment with PBI-4050 in patients with Alström syndrome: study protocol for a phase 2, single-Centre, single-arm, open-label trial

Clinical features of ALMS

Corresponding pre-clinical effects of PBI-4050

Loss of organ function due to fibrosis involving

 Heart

↓ heart fibrosis in suprarenal aortic banding in rats

 Lung

↓ lung fibrosis in bleomycin-induced lung fibrosis in mice

 Liver

↓ liver fibrosis in CCl4-induced liver fibrosis in rats

 Kidneys (renal failure)

↓ kidney fibrosis in various animal models of kidney fibrosis

Type 2 diabetes mellitus

 Early hyperinsulinemia

Reduces insulin resistance in db/db diabetic mice and db/db eNOS−/− diabetic mice

 Severe insulin resistance

Normalizes glycaemia in diabetic mice

 Late pancreatic failure

Maintains (early treatment) or restores (late treatment) insulin content in pancreatic islets

  1. eNOS−/− endothelial nitric oxide synthase knockout (mice)