Zvi Laron

Israeli physician and discoverer of Laron syndrom

In 1966, Zvi Laron identified a specific type of dwarfism characterized by elevated serum growth hormone levels alongside deficient IGF-I concentrations. This discovery, now known as Laron syndrome, fundamentally changed the understanding of the growth hormone-IGF-I axis and pioneered new therapeutic applications using recombinant hormones for children suffering from this genetic condition.

Early Education and Professional Training

Born in 1927 in Chernivtsi, Romania, Zvi Laron began his medical education in 1945 at the Institutul medico-farmaceutic in Timișoara. After arriving in Israel in 1947, he continued his studies at the Hebrew University of Jerusalem, earning his Doctor of Sciences in Medicine in 1952. His postgraduate clinical training included fellowships in pediatric endocrinology at Massachusetts General Hospital, Harvard Medical School, and the Children's Hospital in Pittsburgh between 1954 and 1957.

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Academic and Institutional Contributions

Returning to Israel in 1957, Laron became a pivotal figure in the development of pediatric endocrinology at Tel Aviv University. He helped found the Rogoff Research Institute in 1958 and established the Institute for Pediatric and Adolescent Endocrinology at Beilinson Medical Center. He served as the incumbent of the Irene and Nicholas Marsh Chair in Endocrinology and Juvenile Diabetes and helped create the pediatric teaching program at the university, eventually becoming a Professor Emeritus.

Clinical Innovation and Research

Laron’s research focused on hormonal imbalances and juvenile diabetes. His work enabled the production of human-grade growth hormone and the clinical use of IGF-I for treatment. Beyond his laboratory research at the Felsenstein Institute, he founded professional organizations including the Growth Hormone Research Society and served as a leader for the European Society of Pediatric Endocrinology and the International Society for Pediatric and Adolescent Diabetes. He further influenced the field as the editor of several journals, including Pediatric Endocrinology Reviews.

Recognition and Awards

Throughout his career, Laron received global recognition for his contributions to clinical investigation. Major honors include the Israel Prize in 2009, the Endocrine Society’s Outstanding Clinical Investigator Award in 2001, and being named a Knight First Class of the Order of the White Rose of Finland. He is also a member of the German Academy of Sciences Leopoldina and has received numerous honorary degrees from institutions in Romania and Italy.

Fast facts

Questions readers ask

What is Laron syndrome?

It is a form of dwarfism identified by Zvi Laron in 1966, defined by high levels of growth hormone and low levels of IGF-I.

Which major awards has Zvi Laron received?

He has received the Israel Prize, the Knight First Class of the Order of the White Rose of Finland, and the Outstanding Clinical Investigator Award.

Achievements

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