In Memoriam: Nihal de Lanerolle, DPhil, DSc

This obituary was prepared by his family together with Tore Eid, MD, and Dennis Spencer, MD.

It is with deep sadness that we announce the passing of Nihal C. de Lanerolle, DPhil, DSc, who died on March 25, 2026, at Smilow Cancer Hospital in New Haven, Conn. He was 80 years old. He was born on April 16, 1945, in Colombo, Sri Lanka, where he completed his early education and earned a BSc (Honors) in zoology from the University of Ceylon. He began his academic career as an assistant lecturer in zoology before pursuing doctoral studies in the United Kingdom. He earned a Doctor of Philosophy (DPhil) in neuroethology from the University of Sussex in 1972, and subsequently studied theology and philosophy at the University of Cambridge, where he received a BA (Honors) and later an MA. He was awarded the higher doctoral degree of Doctor of Science (DSc) from the University of Sussex in 1995 in recognition of his distinguished and sustained contributions to science.

Following postdoctoral training at the University of Minnesota and Yale University, de Lanerolle joined the faculty at Yale School of Medicine in 1979. Over a career spanning more than three decades at Yale, he rose through the academic ranks to become professor of neurosurgery and neurobiology. He also served as visiting professor in biology and neuroscience at Wesleyan University and, during a leave from Yale, as college chaplain and adjunct professor of neuroscience at Trinity College in Hartford, Conn.

In collaboration with Dennis D. Spencer, MD, and colleagues, de Lanerolle pioneered studies on the neuropathology of epilepsy, particularly temporal lobe epilepsy. His work led to fundamental discoveries regarding alterations in neuronal subtypes, synaptic organization, astrocytes, and vascular structures within epileptic brain tissue. He demonstrated that temporal lobe epilepsy comprises multiple distinct pathological entities, advancing the understanding that this condition reflects diverse underlying disease mechanisms. His research also extended to experimental models of epilepsy, molecular and genetic alterations in the epileptic brain, and the neuropathology of explosive blast traumatic brain injury.

He authored an extensive body of scholarly work, including more than 75 peer-reviewed publications and numerous book chapters, which significantly advanced the field of human epilepsy research. He was among the early adopters of immunohistochemistry and molecular approaches to investigate the cellular and biochemical basis of neurological disease. His work helped define the modern understanding of the epileptogenic hippocampus and the role of glial and neuronal dysfunction in seizure disorders.

A Fulbright Senior Scholar and corresponding member of the German League Against Epilepsy, de Lanerolle received numerous distinctions recognizing his scientific contributions. He served on several national and international review panels, including the National Institute of Mental Health study section on cognitive functional neuroscience, the Sensory, Motor, and Cognitive Neuroscience Fellowships study section, and advisory roles related to traumatic brain injury research. He was an active participant in national and international symposia and a frequent reviewer for leading scientific journals.

At Yale, he was a valued member of the Yale Epilepsy Surgery Research Program and the Yale Interdepartmental Neuroscience Graduate Program. A dedicated educator and mentor, he trained and influenced generations of undergraduate students, medical students, graduate students, and postdoctoral fellows, many of whom went on to distinguished careers in medicine and science.

In parallel with his scientific career, de Lanerolle pursued a deeply meaningful vocation in the Episcopal Church. He completed theological training at Jesus College and Ridley Hall at the University of Cambridge, earning a Master of Arts in theology and religious studies, and was ordained as an Episcopal priest.

He ministered at St. Paul’s Episcopal Church in Westbrook, Conn., for more than three decades. He began his service in 1994 as a presbyter within the Middlesex Area Cluster Ministry and, following the church’s return to independent status in 2010, served as priest-in-charge. His broader ministry included roles as curate at St. Matthew’s in St. Paul, Minn.; supply priest at numerous parishes; priest associate and interim rector at St. Paul’s Episcopal Church in New Haven; college chaplain at Trinity College (1999–2002); and chaplain to the Episcopal Church at Yale (2002–2013). Through his ministry, de Lanerolle offered guidance, compassion, and spiritual support to diverse communities, uniquely bridging the worlds of science and faith.

He will be remembered not only for his pioneering scientific contributions, but also for his humility, intellectual depth, generosity, and unwavering commitment to helping others. Outside of his professional life, he enjoyed reading, listening to classical music, playing squash and badminton, traveling, and hiking.

He is survived by his brother, Ralph, and his nephew, Trishan.