Obituary: Priv.-Doz. Dr. phil. Gary Anthony Brook (1959–2025)

It is with great sadness that we announce the sudden passing of Priv.-Doz. Dr. phil. Gary Anthony Brook, a respected senior scientist at the Institute of Neuropathology, RWTH Aachen University, who passed away unexpectedly at his home in Aubel, Belgium, on July 20, 2025, at the age of 65.

Throughout his distinguished career, Dr. Brook established an internationally renowned research group at RWTH Aachen University’s Medical Faculty, where he focused on the regeneration of nerve fibers in the central and peripheral nervous systems. His pioneering work in neuroscience and neuropathology has left a lasting impact on both the scientific community and the many individuals whose lives have been touched by his research.

Dr. Brook began his academic journey with a B.Sc. in Pharmacology from the University of Aberdeen in 1982. He completed his Ph.D. in Neuropathology at the National Hospital for Nervous Diseases in London in 1985, under the supervision of Prof. Leo W. Duchen. He went on to complete postdoctoral work at the same institution before moving to the National Institute for Medical Research in London with Dr. G. Raisman. In 1994, he joined the Department of Neurology to set up a Central Nervous System regeneration group, laying the groundwork for his later work also on the regeneration of the peripheral nervous system.

Dr. Brook was instrumental in fostering cross-disciplinary collaborations, bringing together experts from fields like neurosurgery, neurology, cell biology, chemistry, and engineering. His work continued to evolve with the introduction of innovative biomaterials, including collagen scaffolds and hydrogels, to advance nerve fiber regeneration research. In 2006, he brought his expertise to the Institute of Neuropathology, where he expanded his groundbreaking research.

Dr. Brook was known for his ability to unite people from various disciplines, creating a collaborative atmosphere that enriched the research environment. His leadership in guiding projects with clear, actionable goals resulted in reliable, reproducible outcomes that garnered international recognition. He was also an exceptional mentor to younger researchers, inspiring many to pursue careers in science and research.

In addition to his research, Dr. Brook was a cherished lecturer and educator. He received multiple awards for his contributions to the Biomedical Engineering course and earned the respect and admiration of his students. His wisdom, patience, and advice were sought after not only for research matters but also for life’s broader challenges.

An avid sportsman, Dr. Brook played a key role in the victory of the Institute's soccer team in the 2014 NeuroCup, a highlight of his team spirit and leadership outside of the lab. Despite his many accomplishments, Dr. Brook remained modest, never seeking personal recognition. He preferred to focus on advancing his research and supporting the work of his colleagues.

Above all, Dr. Brook was defined by his character—calm, positive, fair, and with a quiet but genuine sense of humor. He was a true gentleman. His dedication to his family was equally evident, as he always prioritized the well-being of his wife and children.

Even as he planned for his eventual retirement, Dr. Brook was preparing the next generation of leaders in his field. Though his life was tragically cut short, his legacy will live on in the research he pioneered, the people he mentored, and the many lives he touched through his work.

Dr. Brook is survived by his loving wife and sons, and our deepest condolences go out to them at this difficult time. His contributions to science and his lasting influence on those who had the privilege to work with him will never be forgotten.

Univ.-Prof. Dr. med. Joachim Weis