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Institute of Metabolic Science

Metabolic Research Laboratories
 

Research focus

My research focusses on identifying how peri-gestational obesity predisposes metabolic and cardiovascular disease in offspring. My studies use a murine model of maternal obesity to explore the underlying mechanisms responsible for adverse metabolic and cardiovascular outcomes and investigate interventions which could be used translationally to improve outcomes.  I am currently investigating maternal metabolic and cardiovascular dysfunction as potential drivers of preeclampsia in the mother through placental dysfunction, and the consequences for offspring health. 

Background and experience

I worked towards my PhD at the Biochemistry department in Cambridge, studying the G-protein and glucose signalling of Trypsanosomes, the parasitic worms that cause sleeping sickness. My first postdoctoral position was with Prof Nick Hales. I assessed developmental programming of type 2 diabetes and cardiovascular disease in a model of maternal undernutrition. In more recent years, I have worked with Prof Sue Ozanne, using a mouse model of maternal overnutrition and gestational glucose intolerance to characterise cardiometabolic effects on both mother and offspring.  

Working at the IMS-MRL

My current project explores the molecular mechanisms of sex-specific differences in adipose tissue and programmed changes on exposure to maternal obesity. What I enjoy most in my role is the intellectual freedom accorded by my PI and the scientific exchanges with colleagues in the MRL. 

Publications

Key publications: 

Sex-specific effects of maternal metformin intervention during glucose-intolerant obese pregnancy on body composition and metabolic health in aged mouse offspring (Josca M. Schoonejans, Heather L. Blackmore, Thomas J. Ashmore, Lucas C. Pantaleão, Luciana Pellegrini Pisani, Laura Dearden, John A. Tadross, Catherine E. Aiken, Denise S. Fernandez-Twinn, Susan E. Ozanne (Diabetologia, in press) 

2. Sandovici I, Fernandez-Twinn DS, Hufnagel A, Constância M, Ozanne SE. Sex differences in the intergenerational inheritance of metabolic traits. Nat Metab.2022 May;4(5):507-523.  

3. Hufnagel A, Dearden L, Fernandez-Twinn DS, Ozanne SE. Programming of cardiometabolic health: the role of maternal and fetal hyperinsulinaemia. J Endocrinol. 2022 Apr 5;253(2):R47-R63. 

4. Pantaleão LC, Inzani I, Furse S, Loche E, Hufnagel A, Ashmore T, Blackmore HL, Jenkins B, Carpenter AAM, Wilczynska A, Bushell M, Koulman A, Fernandez-Twinn DS, Ozanne SE. Maternal diet-induced obesity during pregnancy alters lipid supply to mouse E18.5 fetuses and changes the cardiac tissue lipidome in a sex-dependent manner. Elife. 2022 Jan 13;11:e69078.  

5. Hufnagel A, Fernandez-Twinn DS, Blackmore HL, Ashmore TJ, Heaton RA, Jenkins B, Koulman A, Hargreaves IP, Aiken CE, Ozanne SE. Maternal but not fetoplacental health can be improved by metformin in a murine diet-induced model of maternal obesity and glucose intolerance. J Physiol. 2022 Feb;600(4):903-919. 

Research Associate
Ozanne Group

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