Publications by authors named "M I Bolgov"

Increased thyroid cancer incidence has been one of the principal adverse health effects of the Chornobyl (Chernobyl) nuclear power plant accident. Accurate dose estimation is critical for assessing the radiation dose-response relationship. Current dosimetry estimates for individuals from the Chornobyl Tissue Bank (CTB) are based only on the limited information on their places of residence at the time of the accident and/or at the time of surgery for thyroid cancer.

View Article and Find Full Text PDF

Introduction: The radioiodine-refractory (RAI-R) recurrent papillary thyroid carcinomas (PTCs) are more frequent in elderly patients and have an unfavorable prognosis. Data on the prevalence and characteristics of RAI-R recurrent PTCs in patients of young and middle age with or without a history of radiation exposure in childhood are poorly described. The aim of the current study was: i) to determine the frequency of RAI-R recurrent PTCs among donors of the Chornobyl Tissue Bank (CTB) and analyze the clinicopathological features of primary tumors (PTs), primary metastases (PMTSs), recurrent metastases (RMTSs) and risk factors for RMTS, and ii) to determine the immune checkpoint status (ICS) of the RAI-R recurrent PTCs and to assess the factors associated with ICS positivity.

View Article and Find Full Text PDF

Objective: To evaluate the impact of psychosomatic and anxiety symptoms of depression on the formation of postmorbid adaptation in patients who have undergone SARS-CoV-2 infection.

Material And Methods: The data of 54 patients, aged 18-55 years, with a current depressive episode who had outpatient SARS-CoV-2 infection were analyzed. The Hamilton depression rating scale (HDRS) was used and somatic condition was assessed using a general assessment of the patient's function limitation at the stage of reconvalescence.

View Article and Find Full Text PDF
Article Synopsis
  • The increase in thyroid cancer globally, especially papillary thyroid microcarcinomas (MPTCs), raises questions on how certain factors like radiation exposure impact tumor characteristics and prognosis after the Chornobyl disaster.
  • A study involving 465 patients from highly contaminated areas revealed that longer latency periods correlated with a lower probability of causation from radiation and larger tumor sizes.
  • Despite changes in tumor characteristics, such as increased invasiveness and the frequency of certain mutations, latency, probability of causation, and tumor size did not affect disease recurrence rates after treatment.
View Article and Find Full Text PDF

The potential overtreatment of patients with papillary thyroid microcarcinoma (MPTC) has been an important clinical problem in endocrine oncology over the past decade. At the same time, current clinical guidelines tend to consider prior radiation exposure as a contraindication to less extensive surgery, even for low-risk thyroid carcinomas, which primarily include microcarcinomas. This study aims to determine whether there are differences in the behavior of MPTC of two etiological forms (radiogenic and sporadic), including invasive properties, clinical data, and recurrence in patients aged up to 30 years.

View Article and Find Full Text PDF