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Information × Registration Number 0223U001727, 0122U001311 , R & D reports Title Study of changes in the proliferative activity of breast tumors, functional and structural changes in the thyroid gland in response to neoadjuvant chemotherapy in patients with breast cancer with different molecular genetic phenotypes affected by the Chernobyl accident popup.stage_title Head Lytvynenko Oleksandr O., д.мед.н. Registration Date 02-02-2023 Organization State Institution "National Research Centre For Radiation Medicine of National Academy of Medical Sciences of Ukraine" popup.description2  In patients with breast cancer who were affected by the accident at the Chernobyl nuclear power plant, indicators of the proliferative activity of Ki-67 below 20% were recorded in 21.9% of patients, from 20 to 30% in 28.1% of patients, from 31 to 50% in 21, 9%, and more than 50% in 28.1% of the total number of patients. The obtained data indicate that in the vast majority - 78.1% of patients, tumor cells were at the stage of active division. The study of changes in the proliferative activity of tumors as a result of neoadjuvant polychemotherapy in patients with breast cancer showed that a decrease in Ki-67 indicators under the action of neoadjuvant cytostatic therapy was noted in 71.9% of patients, in another 15.6% of patients a complete pathomorphological and clinical tumor regression. Thus, according to the values of proliferative activity, positive dynamics for carrying out neoadjuvant cytostatic polychemotherapy were recorded in 87.5% of patients. Product Description popup.authors Antonenko Yuriy Vitaliyovych Kruglikova Alina Lischenko Oleksii Рolischuk Valentyn Vitaliyovych popup.nrat_date 2023-02-02 Close