Mykola Oleksandrovych Druzhyna (1940–2020)
Summary. On September 2, 2020, passed away Mykola Oleksandrovych Druzhyna, known Ukrainian scientist, radiobiologist and oncologist, doctor of sciences in biology, senior researcher of the RE Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology, the National Academy of Sciences of Ukraine.
Mykola Oleksandrovych Druzhyna (1940–2020)On September 2, 2020, passed away Mykola Oleksandrovych Druzhyna, known Ukrainian scientist, radiobiologist and oncologist, doctor of sciences in biology, senior researcher of the RE Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology, the National Academy of Sciences of Ukraine.
Mykola Druzhyna was born in 1940 in Grebinka, Poltava region. His scientific career started in O.O.Bogomolets Institute of Physiology in 1965 after graduating from Taras Shevchenko Kyiv State University. In 1969–1973, he worked at the Institute of Molecular Biology and Genetics and then, Mykola Druzhyna devoted his scientific life to RE Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology. Since 2002, Dr. Druzhyna headed Radiobiology Department. Later he worked as senior researcher at the Department of Biological Effects of Ionizing and Non-Ionizing Radiation.
For twenty years, he was engaged in the radiobiological studies, in particular the biological efficacy of fast neutrons, their role in radiation carcinogenesis, mechanisms of radiation-induced lesions, the stochastic effects of the low doses of ionizing radiation, biochemical and biophysical methods for detecting the radiation damage. His studies of the effects of reactive oxygen species on the oxidative metabolism of normal and tumor-bearing animals are well known among the specialists in the field. Dr. Druzhyna co-authored the monographs “Neutrons and Organism” (1982), “Oxidative Processes in Gamma-Neutron Irradiation of the Body” (1986) and “Chemiluminescence of Blood upon Radiation Exposure” (1989) summarizing the results of these studies.
Since 1986, Dr. Druzhyna took the active part in scientific studies performed directly in the area affected by Chernobyl accident. He was among the organizers of the long-term experiment on radiation carcinogenesis in the real setting of the Chernobyl exclusion zone. Based on the findings of these studies, the monograph “Radiobiological Aspects of Chernobyl NPS accident” was published in 1992.
In the late years of his studies, Mykola Druzhyna focused on the development of the novel approaches to the prevention of the deleterious effects of long-term exposure to the low doses of ionizing radiation.
Mykola Druzhyna’s scientific, organizational and pedagogical activities were multifaceted. For several years, he taught biophysics in Kyiv-Mohyla Academy and radiobiology in Taras Shevchenko Kyiv National University. For several years, Mykola Druzhyna was in office as Scientific Secretary of the Coordination Committee on Radiobiology Problems in Academy of Sciences of Ukraine.
Mykola Oleksandrovych Druzhyna remains forever in the hearts of all who knew him as intelligent scientist, original thinker, interesting character. Our Institute has lost a real enthusiast of science and a wonderful person.
Administration and team of the R.E. Kavetsky Institute of Experimental Pathology,
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