Dr. Leena Peltonen, an unusually prolific genetics researcher whose team discovered mutated genes responsible for 15 inherited diseases and who established the department of human genetics at UCLA, died of cancer March 11 at her home in Finland. She was 57.
Her "contribution to understanding the genetics of human disease has been a lifelong commitment and is simply outstanding," said Allan Bradley, director of the Wellcome Trust Sanger Institute in England, where Peltonen ended her career.
According to the Academy of Finland, which awarded her the honorary title of Academician of Science in October 2009: "Her team diagnosed genetic mutations associated with dyslipidemias [abnormal cholesterol levels], lactose intolerance, MS disease, schizophrenia, obesity and heart diseases. The team also established how these mutations mechanically lead to the actual onset of disease. Their efforts have paved the way to new diagnostic tests and to screening for disease carriers."
In her 32-year career, she wrote more than 520 original research articles and 70 reviews, specializing in using genetically isolated populations to identify genes that predispose to various diseases. She also mentored more than 70 doctoral candidates. She received several international prizes. On International Women's Day 2010, the Monday before her death, Finland issued a postage stamp commemorating her achievements.