Geoffrey Iain Warnock, PhD

Research Fellow / Imaging Specialist

Geoff specializes in quantification of biomedical images and splits his time between industry and academia. He has worked in imaging for nearly 15 years, with experience in both small animals and humans, and now focuses on fully quantitative positron Emission Tomography (PET) with blood-based kinetic modelling. He was involved in the development and evaluation of 18F-UCB-H for synaptic vesicle protein 2A, an exciting new target for imaging neurodegeneration, and more recently in first-in-man studies with 18F-PSS232 for mGluR5. On top of his roles in Bruker’s image analysis software branch PMOD Technologies (CH)and Swisstrace GmbH (CH), Geoff is proud to be part of the Gebhard Lab. Out of the office, Geoff loves to be on the move in the mountains, either mountain biking or ski-touring.



Hazem Ahmed, PhD

Reserach Fellow / Radiopharmacist

Hazem is a pharmacist by training with a background in Quality Management and drug development. He completed his PhD in 2020 at Swiss Federal Institute of Technology Zurich (ETHZ, CH) in Pharmaceutical Sciences with a concentration in Neuroimaging and Radiopharmaceutical Chemistry. His work spanned the fields of basic and applied pharmaceutical sciences from development of new labeling methods of complex biomolecules to brain tracers development and clinical translation. As of now, he joined the GebhardLab as a fellow and is stepping with anticipation into the field of cardiac imaging and clinical studies.

ORCID 0000-0001-7047-5202


Vera Regitz-Zagrosek, MD, PhD

Guest Professor

Vera is the founding director of the Berlin Institute for Gender in Medicine (GIM) at Charité University Medicine (DE). From 2011 to 2018, she was the coordinator for the partner site Berlin in the German Center for Cardiovascular Research (DZHK), a centre of excellence in German cardiovascular research. Her research focusses on sex and gender differences in cardiovascular diseases, in basic and clinical science and public health. She is the founding president of the German and International Society for Gender Medicine, and was twice, in 2012 and 2018, the coordinator for the European Society of Cardiology Guidelines for cardiovascular diseases in pregnancy. In 2018, she received the First-Class Cross of Merit of the Federal Republic of Germany for her achievements in gender medicine. As a pioneer in gender medicine in Germany, Vera advises the Medical Faculty of the University of Zurich (CH) on the implementation of knowledge for sex- and gender-specific differences in medicine. She is currently also a visiting professor and senior consultant at the University of Zurich (CH) where she supports the Gebhard Lab and the implementation of sex- and gender-specific knowledge in research, teaching, and medical practice.

Pubmed   ORCID 0000-0002-3566-3467

University Hospital Inselspital Bern

Department of Cardiology
Freiburgstrasse 18
CH-3010 Bern

University Hospital Zurich

Department of Nuclear Medicine
Cardiovascular Gender Medicine
Rämistrasse 100
CH-8091 Zurich

University Hospital Basel

Department of Acute Medicine
Intensive Care Unit
Petersgraben 4
CH-4031 Basel