Searchable abstracts of presentations at key conferences in endocrinology

ea0086p56 | Metabolism, Obesity and Diabetes | SFEBES2022

Macrophage-specific SHIP2 knockdown mice display sex-dependent liver steatosis

Chabrier Gwladys , Pineda-Torra Ines , Yuldasheva Nadira , Kearney Mark , Gage Matthew

Background: Non-alcoholic fatty liver disease (NAFLD) is a spectrum of progressive liver diseases driven in part by macrophages, occurring in the absence of excessive alcohol consumption that ranges from simple steatosis to non-alcoholic steato-hepatitis (NASH), ultimately progressing to fibrosis/cirrhosis and hepatocellular carcinoma. NAFLD is associated with insulin resistance and confers an increased risk of cardiovascular disease. Pre-menopausal women are protected against...

ea0094op2.1 | Metabolism, Obesity and Diabetes | SFEBES2023

Insulin resistance in macrophages impacts cholesterol biosynthesis and interferon gene expression and reduces foam cell formation capacity

Chabrier Gwladys , Pineda-Torra Ines , Hobson Sam , Yuldasheva Nadira , Kearney Mark , Schurmans Stephane , Gage Matthew

Background: Insulin resistance and ageing are risk factors for the development of type 2 diabetes and atherosclerosis. Insulin signalling in macrophages affects their inflammatory responses and foam cell formation capacity, yet the mechanisms linking these remain unclear. Recent evidence has emerged linking macrophage lipid metabolism and inflammatory response such as an interferon-cholesterol pathway flux axis. Insulin has been shown to directly regulate chol...

ea0086p213 | Metabolism, Obesity and Diabetes | SFEBES2022

Differentially expressed genes in insulin resistant macrophages are shared across multiple diabetes associated morbidities

Goodhew Katie , Grammatopoulos Kyriakos , Jackson Amy , Makahamadze Ayanteh , Pineda-Torra Ines , Yuldasheva Nadira , Kearney Mark , Gage Matthew

Authors 1-4 contributed equally to this work.Background: Insulin resistance is the central defining feature of type 2 diabetes and increases with age. People with type 2 diabetes are at an increased risk of cardiovascular disease, non-alcoholic fatty liver disease (NAFLD), Alzheimer’s disease and arthritis. Macrophages are phagocytotic leukocytes which play a central role in the development of type 2 diabetes and the chronic inflammatory di...

ea0065p170 | Metabolism and Obesity | SFEBES2019

Chronic disruption of endothelial Insulin/IGF1 signaling pathway enhances whole body insulin sensitivity

Viswambharan Hema , Yuldasheva Nadira , Imrie Helen , Cubbon Richard , Bridge Katherine , Haywood Natalie , Skromna Anna , Porter Karen , Hemmings Karen , Clark Emily , Gatenby Victoria , Abudushalamu Yilizila , Cordell Paul , Simmons Katie , Makava Natallia , Walker Andrew , Futers Simon , Shah Ajay , Beech David , Wheatcroft Stephen , Kearney Mark , Sukumar Piruthivi

Type 2 diabetes is preceded by insulin resistance, followed by increased endothelial cell production of superoxide and reduction in bioavailability of the vasoprotective signalling molecule, nitric oxide (NO). We demonstrated in preclinical models that type 2 diabetes also causes resistance to insulin-like growth factor-1 (IGF-1) mediated glucose lowering and endothelial NO release. This study aimed to examine the effect of the endothelial cell-specific combination of insulin ...