Searchable abstracts of presentations at key conferences in endocrinology

ea0041ep208 | Cardiovascular Endocrinology and Lipid Metabolism | ECE2016

Optimising human hepatocyte models for metabolic phenotype: effects of treatment with DMSO

Nikolaou Nikolaos , Green Charlotte , Gunn Pippa , Hodson Leanne , Tomlinson Jeremy

Primary human hepatocytes are considered the ‘gold standard’ to explore metabolic phenotype within the liver, however they come with limitations, such as donor variability, lack of proliferation and rapid phenotype loss. The human hepatoma cell line, HepG2, has been used extensively in cell-based metabolic studies but there are significant limitations including their malignant origin and inherent low rates of triglyceride secretion. The aim of this study was to inves...

ea0059p173 | Obesity & metabolism | SFEBES2018

Fructose is metabolised by human subcutaneous adipocytes and can be used as a substrate for de novo lipogenesis

Pinnick Katherine , Cornfield Thomas , Green Charlotte , Hodson Leanne

Introduction: Excessive consumption of free sugars (glucose and fructose) is linked to an increased risk of developing chronic metabolic diseases. Current knowledge of fructose metabolism has focussed on the liver where it is implicated in impaired insulin sensitivity, increased fat accumulation and dyslipidaemia. The long-term effects of elevated fructose consumption on human health are poorly defined and fructose metabolism in subcutaneous adipose tissue, the largest human f...

ea0038p195 | Obesity, diabetes, metabolism and cardiovascular | SFEBES2015

Establishing human liver cell models to investigate the effects of exogenous metabolic substrates on fatty acid partitioning

Green Charlotte , McNeil Catriona , Morten Karl , Hodson Leanne

Hepatic steatosis, accumulation of intracellular triglyceride (TG) (>5% of hepatic tissue), is the prerequisite for the development of non-alcoholic fatty liver disease (NAFLD). NAFLD represents a spectrum of liver diseases and is associated with obesity and obesity-related metabolic diseases such as type 2 diabetes and cardiovascular disease. Steatosis occurs due to an imbalance between fatty acid input and removal (fatty acid partitioning) which can be affected by geneti...

ea0065oc1.2 | Metabolism and Obesity | SFEBES2019

Hepatic de novo lipogenesis is suppressed and fat oxidation is increased by omega-3 fatty acids at the expense of glucose metabolism

Green Charlotte , Pramfalk Camilla , Charlton Catriona , Gunn Pippa , Cornfield Thomas , Pavalides Michael , Karpe Fredrik , Hodson Leanne

Background and Aim: Hepatic de novo lipogenesis (DNL) has been implicated in the development of non-alcoholic fatty liver disease (NAFLD). Supplementation with the omega-3 fatty acids (FA) eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) decreases intrahepatic triacylglycerol (IHTAG) and plasma TAG concentrations, which is suggested to be mediated through changes in hepatic DNL. We investigated the effects of omega-3 FA supplementation on intrahepatic DNL an...

ea0049gp69 | Developmental & 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...

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...

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 ...

ea0041gp174 | Receptors &amp; Signalling | ECE2016

5β-reductase (AKR1D1) is a regulator of glucose homeostasis in human hepatocytes and development of model systems to define its role in metabolic liver disease

Nikolaos Nikolaou , Dunford James , Green Charlotte , Lee Wenhwa , Lim Reina , Gathercole Laura , McKeating Jane , Oppermann Udo , Hodson Leanne , Tomlinson Jeremy

Non-alcoholic fatty liver disease is the hepatic manifestation of the global epidemic of metabolic disease. Steroid hormones, including glucocorticoids and sex steroids, regulate metabolic phenotype, and in addition, bile acids have recently been identified as potent metabolic regulators. 5β-reductase (AKR1D1) is predominantly expressed in the liver and is a crucial regulator of steroid hormone clearance as well as bile acid synthesis. Its role in pathogenesis of metaboli...

ea0059oc3.6 | Obesity &amp; diabetes | SFEBES2018

5β-reductase (AKR1D1) is a potent regulator of hepatic insulin sensitivity, carbohydrate and lipid metabolism in vitro and in vivo

Nikolaou Nikolaos , Gathercole Laura , Marchand Lea , Althari Sara , Green Charlotte , McNeil Catriona , Harris Shelley , van de Bunt Martijn , Arlt Wiebke , Hodson Leanne , Tomlinson Jeremy

Steroid hormones and BAs are established regulators of metabolic phenotype. 5β-reductase (AKR1D1) is highly expressed in the liver where it inactivates steroid hormones and catalyses a fundamental step in bile acid (BA) synthesis. We have hypothesised that AKR1D1 plays a crucial regulatory role in hepatic metabolic homeostasis. Genetic manipulation of AKR1D1 was performed in human liver HepG2 and Huh7 cells. Expression changes were confirmed by qPCR and western blotting, ...