Endocrine Abstracts

Background: Islet transplantation is an established treatment for type 1 diabetes mellitus. However, many recipients do not achieve independence from exogenous insulin since up to 50–70% of islets are lost post-transplant. An important factor determining transplant success is graft vascularisation. The epidermal growth factor receptor (EGFR) is a key pro-survival and proliferation factor. Here, we investigate for the first time if EGFR overexpression in pancreatic islets ...

Background: William-Beuren region duplication syndrome (WBDS) is a rare multisystem disease caused by the gain on chromosome 7q and transmitted autosomal dominant, with approximately a population frequency of 1 in 13,000-20,000. The age of diagnosis is variable, but generally, it is diagnosed during childhood. It include endocrine (growth hormone deficiency) and non-endocrine (facial dysmorphology, cardiovascular problems, gastrointestinal and genitourinary problems, neurologi...

Background and Aims: β cell connectivity is a feature of pancreatic islets in vitro but its existence in vivo, when innervated and continuously perfused with blood, has not yet been demonstrated. We imaged islets engrafted in the anterior chamber of the mouse eye (ACE) to explore this question.Methods: Mouse (C57BL6, Ins1Cre::GCaM6mf/f) or human islets infected with adenovirus to express GCaMP6m, were engrafted and Ca<su...