He is known for his work in the fields of xenotransplantation, the advancement of artificial hearts, extracorporeal membrane oxygenation (ECMO) and lung transplantation.
[8] Cardiac xenotransplantation (from pig to man), which was studied by Brenner and Reichart since 1997, has reached a preclinical status despite a higher immunological complexity than allotransplantation due to preexisting and new-built antibodies against whole organs.
In times of massively increasing shortage of donor organs and yet major problems with artificial hearts (cable connections, batteries, strokes and infections) this makes xenotransplantation highly interesting in the area of organ/cell transplantation.
In view of 45 original papers, over 110 national and international oral presentations, two highly prized international research awards and as an advising tutor of 20 postdocs and postgraduates,[12] Brenner did pioneer work and substantially contributed to the scientific progress of the LMU, especially due to his know-how in the area of xenotransplantation[13] and mechanical circulatory support systems.
In his teaching activity since 2004 Brenner was involved in the introduction of the practical MECUM student educational program[16] of the LMU oriented to the Harvard-University concept.