Searchable abstracts of presentations at key conferences in endocrinology

ea0065oc1.3 | Metabolism and Obesity | SFEBES2019

Metabolic and functional effects of fatty acid overload on in vitro tissue engineered skeletal muscle

Turner Mark , Rimington Rowan , Martin Neil , Fleming Jacob , Capel Andrew , Hodson Leanne , Lewis Mark

Introduction: Efficient fuel selection between glucose and fatty acids in insulin-sensitive organs is a key feature which determines metabolic health in humans. In skeletal muscle, lipid storage and utilisation can differ between healthy and diseased individuals, however to date there are limited in vitro models to explore this. Therefore, aim of this work was to investigate the effects of nutrition on engineered skeletal muscle health and metabolism.<p class="abs...

ea0049gp69 | Developmental &amp; Protein Endocrinology | ECE2017

5β-reductase (AKR1D1) is a potent regulator of carbohydrate and lipid metabolism and inflammation in human liver

Nikolaou Nikolaos , Gathercole Laura , Green Charlotte , McNeil Catriona , Arlt Wiebke , Hodson Leanne , Tomlinson Jeremy

Non-alcoholic fatty liver disease (NAFLD) is the hepatic manifestation of metabolic disease. 5β-reductase (AKR1D1) is highly expressed in human liver where it inactivates steroid hormones and catalyzes a fundamental step in bile acid synthesis. Steroid hormones, including glucocorticoids, as well as bile acids are established regulators of metabolic phenotype. We hypothesized that AKR1D1 plays a crucial regulatory role in hepatic metabolic homeostasis. Genetic manipulatio...

ea0049gp70 | Developmental &amp; Protein Endocrinology | ECE2017

The adverse effects of prescribed glucocorticoids are worsened by co-administration of 5α-reductase inhibitors

Marjot Tom , Othonos Nantia , Woods Conor , Hazlehurst Jonathan , Moola Ahmad , Hodson Leanne , Tomlinson Jeremy

Introduction: Glucocorticoids (GC) are prescribed to 2–3% of the population of the UK and USA. Their use is associated with a significant side effect profile that includes the development of central obesity, insulin resistance and type 2 diabetes. 5α-reductase (5αR) inhibitors (Finasteride and Dutasteride) are also commonly prescribed in the context of prostate disease, where they inhibit the conversion of testosterone to dihydrotestosterone. Additionally, they ...

ea0044oc5.5 | Diabetes Mellitus and Metabolism | SFEBES2016

5β-reductase (AKR1D1) is a potent regulator of carbohydrate and lipid metabolism in human and rodent liver

Nikolaou Nikolaos , Gathercole Laura , Green Charlotte , McNeil Catriona , Hodson Leanne , Tomlinson Jeremy

Non-alcoholic fatty liver disease is the hepatic manifestation of metabolic disease. 5β-reductase (AKR1D1) is highly expressed in human and rodent liver where it inactivates steroid hormones and catalyzes a fundamental step in bile acid synthesis. Steroid hormones, including glucocorticoids, as well as bile acids are established regulators of metabolic phenotype. We have hypothesized that AKR1D1 plays a crucial regulatory role in hepatic metabolic homeostasis.<p class...

ea0070aep405 | Diabetes, Obesity, Metabolism and Nutrition | ECE2020

Aldo-keto reductase (AKR) 1C1 – a potential driver of cell cycle progression in hepatocellular carcinoma

da Conceição Ismael , Nikolaou Nikolaos , Arvaniti Anastasia , Gathercole Laura , Hodson Leanne , Tomlinson Jeremy

The health burden associated with non-alcoholic fatty liver disease (NAFLD), the hepatic manifestation of the metabolic syndrome, continues to escalate. Not only is NAFLD associated with significant liver-specific and cardiovascular morbidity and mortality, but patients are at risk of the development of hepatocellular carcinoma (HCC); a malignancy where the incidence continues to rise and there are very limited therapeutic strategies.Aldo-keto reductase ...

ea0094op2.2 | Metabolism, Obesity and Diabetes | SFEBES2023

An acute upregulation of hepatic de novo lipogenesis does not attenuate the partitioning of polyunsaturated fatty acids into oxidation pathways

Srnic Nikola , Dearlove David , Jonhson Elspeth , O'Rourke Paige , Parry Sion , Hodson Leanne

Background: Intrahepatic triglyceride (IHTG) accumulation, a cardiometabolic disease risk factor, is greater in individuals consuming saturated-fat (SFA) compared to polyunsaturated-fat (PUFA) enriched diets. We have demonstrated that compared to SFA, PUFA are preferentially partitioned into oxidation pathways, which may, in part, explain the divergence in IHTG accumulation. However, it remains unclear if this preferential handling is maintained when hepatocel...

ea0094p205 | Metabolism, Obesity and Diabetes | SFEBES2023

Metabolic signatures of selective hepatic insulin resistance are not evident in humans across a range of liver fat content

Westcott Felix , Nagarajan Shilpa , Parry Sion , Johnson Elspeth , O'Rourke Paige , Hodson Leanne

Background: Fasting hyperglycaemia and hypertriglyceridemia are characteristic of insulin resistance (IR), type 2 diabetes, and non-alcoholic fatty liver disease, but the underlying mechanisms remain unclear. Rodent work has suggested this is due to selective hepatic IR; defined by increased hepatic gluconeogenesis (GNG) and de novo lipogenesis (DNL). The aim of this study was to determine if signatures of selective hepatic IR were associated with hyp...

ea0081p608 | Diabetes, Obesity, Metabolism and Nutrition | ECE2022

Dysregulation of cytochrome P450 oxidoreductase (POR) in NAFLD and hepatocellular carcinoma; evidence from clinical, rodent and cellular models

da Conceicao Ismael , Nikolaou Nikolaos , Gathercole Laura , Harris Shelley , Dempster Niall , Moolla Ahmad , Hodson Leanne , Tomlinson Jeremy

The incidence of non-alcoholic fatty liver disease (NAFLD), the hepatic manifestation of the metabolic syndrome, continues to rise. NAFLD is associated with significant liver-specific and cardiovascular morbidity and mortality, including hepatocellular carcinoma (HCC). Currently, there are no licensed therapies, highlighting the importance of understanding the pathogenic mechanisms that drive the condition. Cytochrome p450 oxidoreductase (POR) plays an essential role in activa...

ea0050p318 | Obesity and Metabolism | SFEBES2017

5β-reductase (AKR1D1) is a potent regulator of carbohydrate and lipid metabolism and inflammation in human liver

Nikolaou Nikolaos , Gathercole Laura , Althari Sara , Green Charlotte , McNeil Catriona , Hughes Beverly , Arlt Wiebke , Hodson Leanne , Tomlinson Jeremy

Non-alcoholic fatty liver disease (NAFLD) is the hepatic manifestation of metabolic disease. Steroid hormones and bile acids are established regulators of metabolic phenotype. 5β-reductase (AKR1D1) is highly expressed in human liver where it inactivates steroid hormones and catalyzes a fundamental step in bile acid synthesis. We hypothesized that AKR1D1 plays a key role in hepatic metabolic homeostasis. Genetic manipulation of AKR1D1 ...

ea0050p318 | Obesity and Metabolism | SFEBES2017

5β-reductase (AKR1D1) is a potent regulator of carbohydrate and lipid metabolism and inflammation in human liver

Nikolaou Nikolaos , Gathercole Laura , Althari Sara , Green Charlotte , McNeil Catriona , Hughes Beverly , Arlt Wiebke , Hodson Leanne , Tomlinson Jeremy

Non-alcoholic fatty liver disease (NAFLD) is the hepatic manifestation of metabolic disease. Steroid hormones and bile acids are established regulators of metabolic phenotype. 5β-reductase (AKR1D1) is highly expressed in human liver where it inactivates steroid hormones and catalyzes a fundamental step in bile acid synthesis. We hypothesized that AKR1D1 plays a key role in hepatic metabolic homeostasis. Genetic manipulation of AKR1D1 ...