The Team

 Carolina Arancibia


Dr. Carolina Arancibia is the Translational Medicine Lead at the TGU and a Research Fellow in Wolfson College, Oxford

She trained at Imperial College, Harvard Medical School and University of Oxford, with funds from the Arthritis Foundation of America, the Broad Medical Research Programme and the BBSRC Diet and Health Research Industry Club.

Carolina is an immunologist whose research interests include dissecting the pathways that lead to inflammatory bowel disease, specifically the characterisation of specialized subsets of cells in the gut and how they might change under the disease environment.

As part of the management team she is the point of contact for academic-industry collaborations.

  James Chivenga


James Chivenga is the IBD Cohort and Database Manager

James graduated in Zimbabwe in 1999 with a BSc honours degree in Biology and Biochemistry and obtained a MSc in Biotechnology degree from Oxford Brookes University in 2012.

His role in the unit involves managing the IBD Cohort database as well as consenting and collecting samples from hospital patients and processing these samples in the lab. James is often the first contact point for patients involved in the TGU's IBD and GI research.  He quite enjoys the aspect of his work which allows him to interact with our study participants and this enables him to keep the TGU's ultimate goal foremost in sight: to provide better care for IBD patients.

Jennifer Hollis

30x Jennifer Hollis photo

Jennifer is the Database Administrator for the IBD database

Jennifer graduated with a BSc Hons in Psychology from Middlesex University.

She joined the TGU in 2015 and finds it very rewarding to work as part of the team and learn about such an interesting area of medicine.

Jennifer is responsible for database design and operational issues and the extraction and manipulation of data for research and clinical purposes.


Borgel Greenaway

8x borgel

Borgel is a Lab Technician in the TGU BioBank Team.

Borgel did an MSc in Immunology at Imperial College, London, and completed his PhD at the University of Nottingham with the Helicobacter pylori Group.

He then trained as a Science teacher at the University of Oxford, and taught for two years in a state comprehensive secondary school. 

Borgel joins the TGU group as a lab technician, he works to provide research support, help with the day-to-day running of the laboratory and collaborates with the BioBank team.

He is particularly passionate about how science can be translated to improve patient care.

Roxanne Williams

Roxanne W.

Roxanne is a member of  the TGU BioBank Team.

I have a BSc (Hons) in Microbiology from Rhodes University in South Africa. I am really excited to work with the unit and am particularly excited to begin working with patients. Up until now my work experience has included working as a medical scientist in a clinical research laboratory in South Africa, doing mostly molecular lab work, DNA/RNA extractions, running qPCR assays and processing human samples. In my spare time, I love to bake and enjoy the sightseeing in my new home (the UK).

My role in the team will be consenting patients, collecting samples, extracting DNA and recording information on the relevant databases. It is likely that I will be focusing on collection of resections from colorectal cancer and IBD surgeries. 

Michael Johnson

Michael Johnson

Michael is the Assistant Database Administrator for the IBD cohort database.

Michael graduated with a BSc from Florida State University in 2009 in Anthropology and obtained an MSc from University of York in Archaeological Information Systems. At university he focused on the use of drones and photogrammetry on archaeological sites.

He is involved with the creation of a surveillance and research database for IBD patients with intestinal neoplasia including polyps and cancer. Michael is very interested in how the collection and organization of medical data can help better people’s lives.