60 research outputs found

    Results of studying pro- and anti-atherogenic immune factors in the persons chronically exposed to ionising radiation

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    It is well established that cohorts of individuals exposed to ionizing radiation exhibit increased risks for cardiovascular diseases. Currently, the role of immune system in pathogenesis of atherosclerosis is actively studied. Meanwhile, the immunomodulatory effects of irradiation in pathogenesis of atherosclerosis in the persons exposed to ionizing radiation still remain unclear. The aim of this research was to study the effect of ionizing radiation upon lymphocyte subpopulations involved in pathogenesis of atherosclerosis. The lymphocyte subpopulations were studied in peripheral blood of the workers chronically exposed to occupational combined radiation versus a control group. The study considered 72 workers of the Russian nuclear production facility, the Mayak Industrial Association (mean age of 72.1Β±10.9 years), and 72 control individuals (mean age of 70.7Β±9.2 years). All the workers were chronically exposed to combined radiation (external gamma-rays and internal alpha-particles). The mean cumulative dose absorbed by red bone marrow from external gamma-ray exposure was 0.750Β±0.699 Gy; the mean cumulative absorbed dose to red bone marrow from internal alpha-particles was 0.072Β±0.092 Gy. The relative and absolute numbers of lymphocyte subpopulations (total T-cells, T-helpers, T-cytotoxic, total B-cells, NK-cells and T-NK-cells) were detected by flow cytofluorometry. The absolute number of CD3+CD19+T-lymphocytes was significantly lower in the individuals exposed to chronic irradiation, compared with the controls (1658.8Β±694.3 x 106/l and 1988.4Β±1045.4 x 106/l, respectively). The relative number of CD3+CD4+T-helpers and CD3+CD8+T-cytotoxic lymphocytes was significantly higher in individuals exposed to chronic irradiation. Relative number of T-helpers in the main group was 42.4Β±8.8% vs 35.3Β±8.7% in controls; the relative number of T-cytotoxic lymphocytes was 27.6Β±9.5%, and 23.3Β±6.5%, respectively. A significant negative correlation was revealed between absolute number of T-lymphocytes and cumulative absorbed doses to bone marrow from external gamma irradiation (correlation quotient r = -0,53565, p = 0,000001) and internal alpha sources (r = -0.54804, p = 0.0000006). This correlation may indicate a relationship between these changes (decreased absolute numbers of T cells) and occupational exposure rates. The increased relative number of T-helpers and cytotoxic T-lymphocytes confirm an assumption that specific antigens may cause an enhanced immune response during the development of atherosclerosis in exposed individuals

    Is Lone Hypertension a Risk Factor for More Severe COVID-19 Outcomes?

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    Background Based on current evidence, it is not clear whether lone hypertension increases the risk for severe illness from COVID-19, or if increased risk is mainly associated with age, obesity and diabetes. The objective of the study was to evaluate whether lone hypertension is associated with increase mortality or a more severe course of COVID-19, and if treatment and control of hypertension mitigates this risk. Methods This is a prospective multi-center observational cohort study with 30-day outcomes of 9,531 consecutive SARS-CoV-2 PCR-positive patients β‰₯ 18 years old (41.9 Β± 9.7 years, 49.2% male), Uzbekistan, June 1-September 30, 2020. Patients were subclassified according to JNC8 criteria into six blood pressure stages. Univariable and multiple logistic regression was conducted to examine how variables predict outcomes. Results The 30-days all-cause mortality was 1.18% (n = 112) in the whole cohort. After adjusting for age, sex, history of myocardial infarction (MI), type-2 diabetes, and obesity, none of six JNC8 groups showed any significant difference in all-cause mortality. However, age was associated with an increased risk of 30-days all-cause mortality (OR = 1.09, 95%CI [1.07-1.12], p < 0.001), obesity (OR = 7.18, 95% CI [4.18-12.44], p < 0.001), diabetes (OR 4.18, 95% CI [2.58-6.76], p < 0.001), and history of MI (OR = 2.68, 95% CI [1.67-4.31], p < 0.001). In the sensitivity test, being β‰₯ 65 years old increased mortality 10.56-fold (95% CI [5.89-18.92], p < 0.001). Hospital admission was 12.4% (n = 1,183), ICU admission 1.38% (n = 132). The odds of hospitalization increased having stage-2 untreated hypertension (OR = 4.51, 95%CI [3.21-6.32], p < 0.001), stage-1 untreated hypertension (OR = 1.97, 95%CI [1.52-2.56], p < 0.001), and elevated blood pressure (OR = 1.82, 95% CI [1.42-2.34], p < 0.001). Neither stage-1 nor stage-2 treated hypertension patients were at statistically significant increased risk for hospitalization after adjusting for confounders. Presenting with stage-2 untreated hypertension increased the odds of ICU admission (OR = 3.05, 95 %CI [1.57-5.93], p = 0.001). Conclusions Lone hypertension did not increase COVID-19 mortality or in treated patients risk of hospitalization

    Immunomorphological characteristics markers of apoptosis of pulmonary adenocarcinoma at workers of plutonium manufacture

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    This work is aimed to identify changes in levels of apoptosis and cell proliferation markers in pulmonary tumour tissues in workers following occupational radiation exposure. We analyzed immune and morphological specific characteristics of apoptosis system using autopsy samples of 40 pulmonary adenocarcinomas including 22 samples from Mayak PA radiation workers. Levels of apoptosis regulating proteins were shown to differ considerably in pulmonary adenocarcinoma foci of plutonium workers internally exposed to alpha-particles compared to those in occupationally unexposed individuals.ЦСль Ρ€Π°Π±ΠΎΡ‚Ρ‹ – ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ ΠΈ ΠΎΡ†Π΅Π½ΠΊΠ° ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠΉ Π² содСрТании Π² Ρ‚ΠΊΠ°Π½ΠΈ Π»Π΅Π³ΠΎΡ‡Π½Ρ‹Ρ… ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅ΠΉ ΠΌΠ°Ρ€ΠΊΠ΅Ρ€ΠΎΠ² Π°ΠΏΠΎΠΏΡ‚ΠΎΠ·Π° ΠΈ ΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½ΠΎΠΉ ΠΏΡ€ΠΎΠ»ΠΈΡ„Π΅Ρ€Π°Ρ†ΠΈΠΈ Ρƒ Π»ΠΈΡ†, ΠΏΠΎΠ΄Π²Π΅Ρ€Π³ΡˆΠΈΡ…ΡΡ ΠΏΡ€ΠΎΡ„Π΅ΡΡΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠΌΡƒ ΠΎΠ±Π»ΡƒΡ‡Π΅Π½ΠΈΡŽ. Π˜Π·ΡƒΡ‡Π΅Π½Ρ‹ иммуноморфологичСскиС особСнности систСмы Π°ΠΏΠΎΠΏΡ‚ΠΎΠ·Π° Π½Π° аутопсийном ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Π΅ 40 случаСв Π°Π΄Π΅Π½ΠΎΠΊΠ°Ρ€Ρ†ΠΈΠ½ΠΎΠΌΡ‹ Π»Π΅Π³ΠΊΠΎΠ³ΠΎ, Π² Ρ‚ΠΎΠΌ числС 22 Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ² ядСрного прСдприятия По «Маяк». Показано, Ρ‡Ρ‚ΠΎ содСрТаниС Π±Π΅Π»ΠΊΠΎΠ²-рСгуляторов систСмы Π°ΠΏΠΎΠΏΡ‚ΠΎΠ·Π° Π² ΠΎΡ‡Π°Π³Π°Ρ… Π°Π΄Π΅Π½ΠΎΠΊΠ°Ρ€Ρ†ΠΈΠ½ΠΎΠΌΡ‹ Π»Π΅Π³ΠΊΠΎΠ³ΠΎ Ρƒ Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ² ΠΏΠ»ΡƒΡ‚ΠΎΠ½ΠΈΠ΅Π²ΠΎΠ³ΠΎ производства, ΠΏΠΎΠ΄Π²Π΅Ρ€Π³ΡˆΠΈΡ…ΡΡ Π²Π½ΡƒΡ‚Ρ€Π΅Π½Π½Π΅ΠΌΡƒ Π°Π»ΡŒΡ„Π°-ΠΎΠ±Π»ΡƒΡ‡Π΅Π½ΠΈΡŽ, Π·Π½Π°Ρ‡ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎ отличаСтся ΠΎΡ‚ ΡΠΎΠΎΡ‚Π²Π΅Ρ‚ΡΡ‚Π²ΡƒΡŽΡ‰Π΅Π³ΠΎ показатСля Π² ΠΎΠ±Ρ€Π°Π·Ρ†Π°Ρ… Π°Π΄Π΅Π½ΠΎΠΊΠ°Ρ€Ρ†ΠΈΠ½ΠΎΠΌΡ‹ Π»Π΅Π³ΠΊΠΎΠ³ΠΎ Ρƒ Π»ΠΈΡ†, Π½Π΅ ΠΏΠΎΠ΄Π²Π΅Ρ€Π³Π°Π²ΡˆΠΈΡ…ΡΡ ΠΏΡ€ΠΎΡ„Π΅ΡΡΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠΌΡƒ ΠΎΠ±Π»ΡƒΡ‡Π΅Π½ΠΈΡŽ

    Π”ΠΈΠ½Π°ΠΌΠΈΠΊΠ° ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»Π΅ΠΉ заболСваСмости Ρ€Π°ΠΊΠΎΠΌ толстого ΠΊΠΈΡˆΠ΅Ρ‡Π½ΠΈΠΊΠ° Π² ΠΊΠΎΠ³ΠΎΡ€Ρ‚Π΅ Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ², ΠΏΠΎΠ΄Π²Π΅Ρ€Π³ΡˆΠΈΡ…ΡΡ ΠΏΡ€ΠΎΡ„Π΅ΡΡΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠΌΡƒ ΠΎΠ±Π»ΡƒΡ‡Π΅Π½ΠΈΡŽ

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    Colorectal cancer is one of the most common malignant neoplasms. Main causes inducing this type of cancer are factors related to the life style and occupational exposures to chemical agents. Some studies demonstrated an association of colorectal cancer incidence and mortality with ionizing radiation. The aim of the present study was to assess the trend in colorectal cancer incidence in a cohort of nuclear workers employed at the Mayak Production Association who had been exposed to ionizing radiation over prolonged periods. The cohort comprised 22,377 workers (25% of females) employed at one of the main plants (reactors, radiochemical and plutonium production plants) of the Mayak Production Association in 1948-1982 who had been externally exposed to gamma rays (cumulative absorbed colon doses were 0–5.85 Gy with the corresponding median dose of 0.16 Gy) and those who had inhaled aerosols containing plutonium particles had been also internally exposed to alpha radiation (cumulative absorbed colon doses were 0–0.18 Gy with the corresponding median dose of 0.0002 Gy). Over the period of 1948–2018, 239 colon cancers and 186 rectum cancers were diagnosed in the study cohort. The incidence of colorectal malignancies among workers of the study cohort was shown to increase with age above 50. Age-standardized incidence rates were higher in males than in females. The time trend analysis of age-standardized rates of colorectal malignancies among workers of the study cohort was performed using a spline regression. The trend of age-standardized rates of colorectal cancer incidence in the Mayak Production Association workers over the analyzed period was nonmonotonic. In general, the average annual percent change of incidence growth for colon cancer was less than 0.1% (for both sexes), while the corresponding estimates for rectum cancer were 1.1% in males and 30.3% in females. To assess the effect of occupational radiation exposure on the incidence of colorectal malignancies, a radiogenic risk analysis that would take into account non-radiation risk factors should be performed.Π Π°ΠΊ толстого ΠΊΠΈΡˆΠ΅Ρ‡Π½ΠΈΠΊΠ° Π²Ρ…ΠΎΠ΄ΠΈΡ‚ Π² число Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ распространСнных злокачСствСнных Π½ΠΎΠ²ΠΎΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Π½ΠΈΠΉ. ΠžΡΠ½ΠΎΠ²Π½Ρ‹ΠΌΠΈ ΠΏΡ€ΠΈΡ‡ΠΈΠ½Π°ΠΌΠΈ возникновСния ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅ΠΉ этой Π»ΠΎΠΊΠ°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ ΡΠ²Π»ΡΡŽΡ‚ΡΡ Ρ„Π°ΠΊΡ‚ΠΎΡ€Ρ‹, связанныС с ΠΎΠ±Ρ€Π°Π·ΠΎΠΌ ΠΆΠΈΠ·Π½ΠΈ, Π° Ρ‚Π°ΠΊΠΆΠ΅ ΠΏΡ€ΠΎΡ„Π΅ΡΡΠΈΠΎΠ½Π°Π»ΡŒΠ½Ρ‹ΠΉ ΠΊΠΎΠ½Ρ‚Π°ΠΊΡ‚ с Π½Π΅ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΌΠΈ химичСскими Π°Π³Π΅Π½Ρ‚Π°ΠΌΠΈ. Π’ ΠΎΡ‚Π΄Π΅Π»ΡŒΠ½Ρ‹Ρ… исслСдованиях установлСно влияниС ΠΈΠΎΠ½ΠΈΠ·ΠΈΡ€ΡƒΡŽΡ‰Π΅Π³ΠΎ излучСния Π½Π° Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π΅ΠΌΠΎΡΡ‚ΡŒ ΠΈ ΡΠΌΠ΅Ρ€Ρ‚Π½ΠΎΡΡ‚ΡŒ ΠΎΡ‚ Ρ€Π°ΠΊΠ° толстого ΠΊΠΈΡˆΠ΅Ρ‡Π½ΠΈΠΊΠ°. ЦСлью настоящСго исслСдования являлась ΠΎΡ†Π΅Π½ΠΊΠ° Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠΈ заболСваСмости Ρ€Π°ΠΊΠΎΠΌ толстого ΠΊΠΈΡˆΠ΅Ρ‡Π½ΠΈΠΊΠ° Π² ΠΊΠΎΠ³ΠΎΡ€Ρ‚Π΅ Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ² прСдприятия Π°Ρ‚ΠΎΠΌΠ½ΠΎΠΉ ΠΏΡ€ΠΎΠΌΡ‹ΡˆΠ»Π΅Π½Π½ΠΎΡΡ‚ΠΈ – производствСнного объСдинСния «Маяк»», ΠΏΠΎΠ΄Π²Π΅Ρ€Π³ΡˆΠΈΡ…ΡΡ ΠΏΡ€ΠΎΠ»ΠΎΠ½Π³ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠΌΡƒ ΠΏΡ€ΠΎΡ„Π΅ΡΡΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠΌΡƒ ΠΎΠ±Π»ΡƒΡ‡Π΅Π½ΠΈΡŽ. ΠšΠΎΠ³ΠΎΡ€Ρ‚Π° Π²ΠΊΠ»ΡŽΡ‡Π°Π»Π° 22 377 Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ² (25% – ΠΆΠ΅Π½Ρ‰ΠΈΠ½Ρ‹), нанятых Π½Π° основныС Π·Π°Π²ΠΎΠ΄Ρ‹ производствСнного объСдинСния «Маяк» (Ρ€Π΅Π°ΠΊΡ‚ΠΎΡ€Π½Ρ‹ΠΉ, радиохимичСский, ΠΏΠ»ΡƒΡ‚ΠΎΠ½ΠΈΠ΅Π²Ρ‹ΠΉ) Π² 1948–1982 Π³Π³., ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ ΠΏΠΎΠ΄Π²Π΅Ρ€Π³Π°Π»ΠΈΡΡŒ ΠΏΡ€ΠΎΠ»ΠΎΠ½Π³ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠΌΡƒ ΠΎΠ±Ρ‰Π΅ΠΌΡƒ Π²Π½Π΅ΡˆΠ½Π΅ΠΌΡƒ Π³Π°ΠΌΠΌΠ°-ΠΎΠ±Π»ΡƒΡ‡Π΅Π½ΠΈΡŽ (Π½Π°ΠΊΠΎΠΏΠ»Π΅Π½Π½Ρ‹Π΅ ΠΏΠΎΠ³Π»ΠΎΡ‰Π΅Π½Π½Ρ‹Π΅ Π² стСнкС толстой кишки Π΄ΠΎΠ·Ρ‹ 0–5,85 Π“Ρ€, ΠΌΠ΅Π΄ΠΈΠ°Π½Π° 0,16 Π“Ρ€), Π° Π² случаС ингаляционного поступлСния соСдинСний плутония – Ρ‚Π°ΠΊΠΆΠ΅ Π²Π½ΡƒΡ‚Ρ€Π΅Π½Π½Π΅ΠΌΡƒ Π°Π»ΡŒΡ„Π°-ΠΎΠ±Π»ΡƒΡ‡Π΅Π½ΠΈΡŽ (Π½Π°ΠΊΠΎΠΏΠ»Π΅Π½Π½Ρ‹Π΅ ΠΏΠΎΠ³Π»ΠΎΡ‰Π΅Π½Π½Ρ‹Π΅ Π² стСнкС толстой кишки Π΄ΠΎΠ·Ρ‹ 0–0,18 Π“Ρ€, ΠΌΠ΅Π΄ΠΈΠ°Π½Π° 0,0002 Π“Ρ€). Π’ ΠΏΠ΅Ρ€ΠΈΠΎΠ΄ 1948–2018 Π³Π³. Π² ΠΈΠ·ΡƒΡ‡Π°Π΅ΠΌΠΎΠΉ ΠΊΠΎΠ³ΠΎΡ€Ρ‚Π΅ диагностировано 239 случаСв Ρ€Π°ΠΊΠ° ΠΎΠ±ΠΎΠ΄ΠΎΡ‡Π½ΠΎΠΉ кишки ΠΈ 186 случаСв Ρ€Π°ΠΊΠ° прямой кишки. ΠŸΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»ΠΈ заболСваСмости Ρ€Π°ΠΊΠΎΠΌ толстого ΠΊΠΈΡˆΠ΅Ρ‡Π½ΠΈΠΊΠ° Ρƒ Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ² ΠΈΠ·ΡƒΡ‡Π°Π΅ΠΌΠΎΠΉ ΠΊΠΎΠ³ΠΎΡ€Ρ‚Ρ‹ статистичСски Π·Π½Π°Ρ‡ΠΈΠΌΠΎ ΡƒΠ²Π΅Π»ΠΈΡ‡ΠΈΠ²Π°Π»ΠΈΡΡŒ с возрастом ΡΡ‚Π°Ρ€ΡˆΠ΅ 50 Π»Π΅Ρ‚, стандартизованныС ΠΏΠΎ возрасту ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»ΠΈ Π±Ρ‹Π»ΠΈ Π²Ρ‹ΡˆΠ΅ Ρƒ ΠΌΡƒΠΆΡ‡ΠΈΠ½ ΠΏΠΎ ΡΡ€Π°Π²Π½Π΅Π½ΠΈΡŽ с ΠΆΠ΅Π½Ρ‰ΠΈΠ½Π°ΠΌΠΈ. Анализ Π²Ρ€Π΅ΠΌΠ΅Π½Π½Ρ‹Ρ… Ρ‚Ρ€Π΅Π½Π΄ΠΎΠ² стандартизованных ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»Π΅ΠΉ заболСваСмости Ρ€Π°ΠΊΠΎΠΌ толстого ΠΊΠΈΡˆΠ΅Ρ‡Π½ΠΈΠΊΠ° Ρƒ Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ² ΠΈΠ·ΡƒΡ‡Π°Π΅ΠΌΠΎΠΉ ΠΊΠΎΠ³ΠΎΡ€Ρ‚Ρ‹ Π±Ρ‹Π»Π° Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ сплайн-рСгрСссии. Π”ΠΈΠ½Π°ΠΌΠΈΠΊΠ° стандартизованных ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»Π΅ΠΉ заболСваСмости Ρ€Π°ΠΊΠΎΠΌ толстого ΠΊΠΈΡˆΠ΅Ρ‡Π½ΠΈΠΊΠ° Ρƒ пСрсонала производствСнного объСдинСния «Маяк» Π² ΠΈΠ·ΡƒΡ‡Π°Π΅ΠΌΡ‹ΠΉ ΠΏΠ΅Ρ€ΠΈΠΎΠ΄ Π²Ρ€Π΅ΠΌΠ΅Π½ΠΈ носила Ρ€Π°Π·Π½ΠΎΠ½Π°ΠΏΡ€Π°Π²Π»Π΅Π½Π½Ρ‹ΠΉ Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€. Π’ Ρ†Π΅Π»ΠΎΠΌ, Π² 2014–2018 Π³Π³. срСднСгодовой Ρ‚Π΅ΠΌΠΏ прироста заболСваСмости Ρ€Π°ΠΊΠΎΠΌ ΠΎΠ±ΠΎΠ΄ΠΎΡ‡Π½ΠΎΠΉ кишки составил ΠΌΠ΅Π½Π΅Π΅ 0,1% (ΠΎΠ±Π° ΠΏΠΎΠ»Π°), Π°Π½Π°Π»ΠΎΠ³ΠΈΡ‡Π½Ρ‹ΠΉ ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»ΡŒ для Ρ€Π°ΠΊΠ° прямой кишки Ρƒ ΠΌΡƒΠΆΡ‡ΠΈΠ½ Π±Ρ‹Π» Ρ€Π°Π²Π΅Π½ 1,1%, Π° Ρƒ ΠΆΠ΅Π½Ρ‰ΠΈΠ½ достигал 30,3%. Для ΠΎΡ†Π΅Π½ΠΊΠΈ влияния ΠΏΡ€ΠΎΡ„Π΅ΡΡΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ облучСния Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ² Π½Π° Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π΅ΠΌΠΎΡΡ‚ΡŒ Ρ€Π°ΠΊΠΎΠΌ толстого ΠΊΠΈΡˆΠ΅Ρ‡Π½ΠΈΠΊΠ° трСбуСтся Π°Π½Π°Π»ΠΈΠ· Ρ€Π°Π΄ΠΈΠΎΠ³Π΅Π½Π½ΠΎΠ³ΠΎ риска с ΡƒΡ‡Π΅Ρ‚ΠΎΠΌ дСйствия Π½Π΅Ρ€Π°Π΄ΠΈΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… Ρ„Π°ΠΊΡ‚ΠΎΡ€ΠΎΠ²

    Characteristics of malignant neoplasms of the hepatobiliary system in the cohort of occupationally-exposed workers

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    The aim of the study was to describe cases of hepatobiliary system disease in the cohort of employees hired at the main plants of FSUE Mayak Production Association (PA Β«MayakΒ») in 1948- 1982, who were exposed to occupational chronic radiationЦСль исслСдования β€” характСристика случаСв Π—ΠΠž Π³Π΅ΠΏΠ°Ρ‚ΠΎΠ±ΠΈΠ»ΠΈΠ°Ρ€Π½ΠΎΠΉ систСмы Π² ΠΊΠΎΠ³ΠΎΡ€Ρ‚Π΅ Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ², нанятых Π½Π° основныС Π·Π°Π²ΠΎΠ΄Ρ‹ Π€Π“Π£ΠŸ Β«ΠŸΡ€ΠΎΠΈΠ·Π²ΠΎΠ΄ΡΡ‚Π²Π΅Π½Π½ΠΎΠ΅ объСдинСниС «Маяк» (ПО «Маяк») Π² 1948–1982 Π³Π³., ΠΏΠΎΠ΄Π²Π΅Ρ€Π³Π°Π²ΡˆΠΈΡ…ΡΡ ΠΏΡ€ΠΎΡ„Π΅ΡΡΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠΌΡƒ хроничСскому ΠΎΠ±Π»ΡƒΡ‡Π΅Π½ΠΈ

    ΠŸΡ€ΠΎΠ΄ΠΎΠ»ΠΆΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΡŒ ΠΆΠΈΠ·Π½ΠΈ Ρƒ Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ² ПО «Маяк» послС острой Π»ΡƒΡ‡Π΅Π²ΠΎΠΉ Π±ΠΎΠ»Π΅Π·Π½ΠΈ Ρ€Π°Π·Π½ΠΎΠΉ стСпСни тяТСсти

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    Assessment of the impact of radiation exposure on human lifetime is an actual problem in radiation medicine. The aim of the study was to assess lifetime in Mayak PA workers who had developed acute radiation syndrome following accidental acute high-dose external exposure and in those individuals who had taken part in nuclear accidents but had not developed the syndrome. Study analyses considered 58 deceased Mayak PA workers (50 males and 8 females) and were performed using STATISTICA 10 software. Five indicators of lifetime were studied: static – before and after acute exposure, total lifetime, as well as potential – potential years of life lost and the proportion of people who lived less than 35 years. The study demonstrated significant decrease in static indicators excluding lifetime before acute exposure and increase in potential indicators of lifetime in workers with severe and especially with extreme acute radiation syndrome compared to workers with moderate and modest acute radiation syndrome and to workers free of the syndrome. The reason for the decrease of lifetime in workers with extreme acute radiation syndrome was extremely severe course of the disease. Decrease of lifetime in cases with severe level of the syndrome was mainly due to early death from malignancies. A significant linear regression association with natural logarithm of acute radiation dose in Gy was observed for lifetime indicators. At 1 logarithm of the radiation dose, the lifetime after acute exposure was reduced by 8.3 years, total lifetime by 8.8 years, and potential years of life lost increased by 8.4 years. The relative risk of the increase of the proportion of workers with less than 35 years of life was considerably higher in workers with extreme and severe acute radiation syndrome and in workers with acute radiation doses above 10 Gy compared to other groups of workers: 26.8 and 18.8 (95% CI: 3.8–191.1 and 2.7–129.8; p&lt;0.001), respectively. Thus, for the first time, a reduction in lifetime after acute radiation syndrome was found among Mayak PA workers.ΠžΡ†Π΅Π½ΠΊΠ° влияния Ρ€Π°Π΄ΠΈΠ°Ρ†ΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ воздСйствия Π½Π° ΠΏΡ€ΠΎΠ΄ΠΎΠ»ΠΆΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΡŒ ΠΆΠΈΠ·Π½ΠΈ Ρ‡Π΅Π»ΠΎΠ²Π΅ΠΊΠ° – Π°ΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½Π°Ρ ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΠ° Ρ€Π°Π΄ΠΈΠ°Ρ†ΠΈΠΎΠ½Π½ΠΎΠΉ ΠΌΠ΅Π΄ΠΈΡ†ΠΈΠ½Ρ‹. ЦСлью исслСдования явился Π°Π½Π°Π»ΠΈΠ· ΠΏΡ€ΠΎΠ΄ΠΎΠ»ΠΆΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ ΠΆΠΈΠ·Π½ΠΈ Π² Π³Ρ€ΡƒΠΏΠΏΠ΅ Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ² ПО «Маяк» послС острой Π»ΡƒΡ‡Π΅Π²ΠΎΠΉ Π±ΠΎΠ»Π΅Π·Π½ΠΈ, ΠΏΠΎΠ΄Π²Π΅Ρ€Π³ΡˆΠΈΡ…ΡΡ Π² Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π΅ Π°Π²Π°Ρ€ΠΈΠΉΠ½Ρ‹Ρ… ситуаций острому Π²Π½Π΅ΡˆΠ½Π΅ΠΌΡƒ ΠΎΠ±Π»ΡƒΡ‡Π΅Π½ΠΈΡŽ Π² Π·Π½Π°Ρ‡ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹Ρ… Π΄ΠΎΠ·Π°Ρ…, ΠΈ участников Π°Π²Π°Ρ€ΠΈΠΉ Π±Π΅Π· заболСвания. Анализ ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½ Ρƒ 58 ΡƒΠΌΠ΅Ρ€ΡˆΠΈΡ… Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ² ПО «Маяк» (50 ΠΌΡƒΠΆΡ‡ΠΈΠ½ ΠΈ 8 ΠΆΠ΅Π½Ρ‰ΠΈΠ½) с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌΡ‹ STATISTICA 10. Π˜Π·ΡƒΡ‡Π΅Π½Ρ‹ 5 ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»Π΅ΠΉ ΠΏΡ€ΠΎΠ΄ΠΎΠ»ΠΆΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ ΠΆΠΈΠ·Π½ΠΈ: статичныС – Π΄ΠΎ ΠΈ послС острого облучСния, общая ΠΏΡ€ΠΎΠ΄ΠΎΠ»ΠΆΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΡŒ ΠΆΠΈΠ·Π½ΠΈ, Π° Ρ‚Π°ΠΊΠΆΠ΅ ΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½Ρ‹Π΅ – потСрянныС Π³ΠΎΠ΄Ρ‹ ΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ ΠΆΠΈΠ·Π½ΠΈ ΠΈ доля Π»ΠΈΡ†, ΠΏΡ€ΠΎΠΆΠΈΠ²ΡˆΠΈΡ… ΠΌΠ΅Π½Π΅Π΅ 35 Π»Π΅Ρ‚. Π’ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π΅ исслСдования Ρƒ Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ² с тяТСлой ΠΈ особСнно ΠΊΡ€Π°ΠΉΠ½Π΅ тяТСлой ΡΡ‚Π΅ΠΏΠ΅Π½ΡŒΡŽ Π±ΠΎΠ»Π΅Π·Π½ΠΈ ΠΎΡ‚Π½ΠΎΡΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎ Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ² срСднСй ΠΈ Π»Π΅Π³ΠΊΠΎΠΉ стСпСни тяТСсти заболСвания ΠΈ участников Π°Π²Π°Ρ€ΠΈΠΉ установлСно статистичСски Π·Π½Π°Ρ‡ΠΈΠΌΠΎΠ΅ сокращСниС статичных ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»Π΅ΠΉ, Π·Π° ΠΈΡΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΠ΅ΠΌ ΠΏΡ€ΠΎΠ΄ΠΎΠ»ΠΆΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ ΠΆΠΈΠ·Π½ΠΈ Π΄ΠΎ острого облучСния, ΠΈ ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΠ΅ ΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½Ρ‹Ρ… ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»Π΅ΠΉ. ΠŸΡ€ΠΈΡ‡ΠΈΠ½ΠΎΠΉ сокращСния ΠΏΡ€ΠΎΠ΄ΠΎΠ»ΠΆΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ ΠΆΠΈΠ·Π½ΠΈ ΠΏΡ€ΠΈ ΠΊΡ€Π°ΠΉΠ½Π΅ тяТСлой стСпСни заболСвания Π±Ρ‹Π»ΠΎ Π΅Π³ΠΎ ΡΠΊΡΡ‚Ρ€Π΅ΠΌΠ°Π»ΡŒΠ½ΠΎΠ΅ Ρ‚Π΅Ρ‡Π΅Π½ΠΈΠ΅. ΠŸΡ€ΠΈ тяТСлой стСпСни тяТСсти сокращСниС ΠΏΡ€ΠΎΠ΄ΠΎΠ»ΠΆΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ ΠΆΠΈΠ·Π½ΠΈ Π±Ρ‹Π»ΠΎ обусловлСно, Π³Π»Π°Π²Π½Ρ‹ΠΌ ΠΎΠ±Ρ€Π°Π·ΠΎΠΌ, ΠΏΡ€Π΅ΠΆΠ΄Π΅Π²Ρ€Π΅ΠΌΠ΅Π½Π½ΠΎΠΉ ΡΠΌΠ΅Ρ€Ρ‚Π½ΠΎΡΡ‚ΡŒΡŽ ΠΎΡ‚ злокачСствСнных Π½ΠΎΠ²ΠΎΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Π½ΠΈΠΉ. УстановлСна статистичСски значимая линСйная рСгрСссионная Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡ‚ΡŒ ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»Π΅ΠΉ ΠΏΡ€ΠΎΠ΄ΠΎΠ»ΠΆΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ ΠΆΠΈΠ·Π½ΠΈ ΠΎΡ‚ Π½Π°Ρ‚ΡƒΡ€Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ Π»ΠΎΠ³Π°Ρ€ΠΈΡ„ΠΌΠ° Π΄ΠΎΠ·Ρ‹ острого облучСния. На 1 Π»ΠΎΠ³Π°Ρ€ΠΈΡ„ΠΌ Π΄ΠΎΠ·Ρ‹ облучСния ΠΏΡ€ΠΎΠ΄ΠΎΠ»ΠΆΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΡŒ ΠΆΠΈΠ·Π½ΠΈ послС острого облучСния ΡΠΎΠΊΡ€Π°Ρ‰Π°Π»Π°ΡΡŒ Π½Π° 8,3 Π»Π΅Ρ‚, общая – Π½Π° 8,8 Π»Π΅Ρ‚, Π° потСрянныС Π³ΠΎΠ΄Ρ‹ ΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ ΠΆΠΈΠ·Π½ΠΈ ΠΏΠΎΠ²Ρ‹ΡˆΠ°Π»ΠΈΡΡŒ Π½Π° 8,4 Π»Π΅Ρ‚. ΠžΡ‚Π½ΠΎΡΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹ΠΉ риск ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΡ Π΄ΠΎΠ»ΠΈ Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ², ΠΏΡ€ΠΎΠΆΠΈΠ²ΡˆΠΈΡ… ΠΌΠ΅Π½Π΅Π΅ 35 Π»Π΅Ρ‚ ΠΏΡ€ΠΈ Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠΈ тяТСлой ΠΈ ΠΊΡ€Π°ΠΉΠ½Π΅ тяТСлой стСпСни тяТСсти, Π° Ρ‚Π°ΠΊΠΆΠ΅ ΠΏΡ€ΠΈ Π΄ΠΎΠ·Π°Ρ… острого облучСния Π±ΠΎΠ»Π΅Π΅ 10 Π“Ρ€ ΠΏΠΎ ΡΡ€Π°Π²Π½Π΅Π½ΠΈΡŽ с ΠΎΡΡ‚Π°Π»ΡŒΠ½Ρ‹ΠΌΠΈ Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠ°ΠΌΠΈ, Π±Ρ‹Π» сущСствСнно ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½, составив 26,8 ΠΈ 18,8 (Π”Π˜: 3,8–191,1 ΠΈ 2,7–129,8; p &lt;0,001) соотвСтствСнно. Π’Π°ΠΊΠΈΠΌ ΠΎΠ±Ρ€Π°Π·ΠΎΠΌ, Ρƒ Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ² ПО «Маяк» Π²ΠΏΠ΅Ρ€Π²Ρ‹Π΅ установлСно сокращСниС ΠΏΡ€ΠΎΠ΄ΠΎΠ»ΠΆΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ ΠΆΠΈΠ·Π½ΠΈ послС острой Π»ΡƒΡ‡Π΅Π²ΠΎΠΉ Π±ΠΎΠ»Π΅Π·Π½ΠΈ

    Immunomorphological characteristics of pneumofibrosisat workers of plutonium manufacture

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    The purpose of this work was to perform - the comparative morphological analysis of a pneumofibrosis in workers with occupational exposure. We investigated morphological characteristics of pneumofibrosis based on autopsy material taken from 125 Mayak workers taking total absorbed dose frominternal alpha-radiation and duration of irradiationinto account. There is a clear link between internal alpha-radiationfrom incorporated plutonium and specific type of pneumofibrosis. This type of pneumofibrosis differs from pneumofibrosisin terms of chronic obstructive pulmonary disease and congestive heart failure.ЦСль Ρ€Π°Π±ΠΎΡ‚Ρ‹ - ΡΡ€Π°Π²Π½ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹ΠΉ морфологичСский Π°Π½Π°Π»ΠΈΠ· ΠΏΠ½Π΅Π²ΠΌΠΎΡ„ΠΈΠ±Ρ€ΠΎΠ·Π° Ρƒ Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ², ΠΏΠΎΠ΄Π²Π΅Ρ€Π³ΡˆΠΈΡ…ΡΡ ΠΏΡ€ΠΎΡ„Π΅ΡΡΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠΌΡƒ ΠΎΠ±Π»ΡƒΡ‡Π΅Π½ΠΈΡŽ. Π˜Π·ΡƒΡ‡Π΅Π½Ρ‹ морфологичСскиС особСнности ΠΏΠ½Π΅Π²ΠΌΠΎΡ„ΠΈΠ±Ρ€ΠΎΠ·Π° Π½Π° аутопсийном ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Π΅ 125 Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ² ядСрного прСдприятия ПО «Маяк», с ΡƒΡ‡Π΅Ρ‚ΠΎΠΌ суммарной ΠΏΠΎΠ³Π»ΠΎΡ‰Π΅Π½Π½ΠΎΠΉ Π΄ΠΎΠ·Ρ‹ Π²Π½ΡƒΡ‚Ρ€Π΅Π½Π½Π΅Π³ΠΎ Π°Π»ΡŒΡ„Π°-облучСния ΠΈ ΠΏΡ€ΠΎΠ΄ΠΎΠ»ΠΆΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ облучСния. Показано, Ρ‡Ρ‚ΠΎ прослСТиваСтся чСткая связь ΠΌΠ΅ΠΆΠ΄Ρƒ Π²Π½ΡƒΡ‚Ρ€Π΅Π½Π½ΠΈΠΌ Π°Π»ΡŒΡ„Π°-ΠΎΠ±Π»ΡƒΡ‡Π΅Π½ΠΈΠ΅ΠΌ ΠΎΡ‚ ΠΈΠ½ΠΊΠΎΡ€ΠΏΠΎΡ€ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ плутония ΠΈ особым Ρ‚ΠΈΠΏΠΎΠΌ ΠΏΠ½Π΅Π²ΠΌΠΎΡ„ΠΈΠ±Ρ€ΠΎΠ·Π°. Π”Π°Π½Π½Ρ‹ΠΉ Ρ‚ΠΈΠΏ ΠΏΠ½Π΅Π²ΠΌΠΎΡ„ΠΈΠ±Ρ€ΠΎΠ·Π° отличаСтся ΠΎΡ‚ ΠΏΠ½Π΅Π²ΠΌΠΎΡ„ΠΈΠ±Ρ€ΠΎΠ·Π°, Π²ΠΎΠ·Π½ΠΈΠΊΠ°ΡŽΡ‰Π΅Π³ΠΎ Π² исходС хроничСской обструктивной Π±ΠΎΠ»Π΅Π·Π½ΠΈ Π»Π΅Π³ΠΊΠΈΡ… ΠΈ застойной сСрдСчной нСдостаточности

    Immunomorphological characteristics of pulmonary adenocarcinoma at workers of plutonium manufacture

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    The purpose of this work was to perform - the comparative morphological analysis of Π°Π» adenocarcinoma of lung in workers with occupational exposure. We investigated morphological characteristics of pulmonary adenocarcinomas based on autopsy material taken from 57 Mayak workers taking total absorbed dose from internal alpha-radiation and duration of irradiation into account. There is a clear link between internal alpha-radiation from incorporated plutonium and structural changes connective tissue of lung, also cellular renovation system in tumor and pulmonary tissues.ЦСль Ρ€Π°Π±ΠΎΡ‚Ρ‹ - ΡΡ€Π°Π²Π½ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹ΠΉ морфологичСский Π°Π½Π°Π»ΠΈΠ· Π°Π΄Π΅Π½ΠΎΠΊΠ°Ρ€Ρ†ΠΈΠ½ΠΎΠΌ Π»Π΅Π³ΠΊΠΈΡ… Ρƒ Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ², ΠΏΠΎΠ΄Π²Π΅Ρ€Π³ΡˆΠΈΡ…ΡΡ ΠΏΡ€ΠΎΡ„Π΅ΡΡΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠΌΡƒ ΠΎΠ±Π»ΡƒΡ‡Π΅Π½ΠΈΡŽ. Π˜Π·ΡƒΡ‡Π΅Π½Ρ‹ морфологичСскиС особСнности ΠΏΠ½Π΅Π²ΠΌΠΎΡ„ΠΈΠ±Ρ€ΠΎΠ·Π° Π½Π° аутопсийном ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Π΅ 57 Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ² ядСрного прСдприятия ПО «Маяк», с ΡƒΡ‡Π΅Ρ‚ΠΎΠΌ суммарной ΠΏΠΎΠ³Π»ΠΎΡ‰Π΅Π½Π½ΠΎΠΉ Π΄ΠΎΠ·Ρ‹ Π²Π½ΡƒΡ‚Ρ€Π΅Π½Π½Π΅Π³ΠΎ Π°Π»ΡŒΡ„Π°-облучСния ΠΈ ΠΏΡ€ΠΎΠ΄ΠΎΠ»ΠΆΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ облучСния. Показано, Ρ‡Ρ‚ΠΎ прослСТиваСтся чСткая связь ΠΌΠ΅ΠΆΠ΄Ρƒ Π²Π½ΡƒΡ‚Ρ€Π΅Π½Π½ΠΈΠΌ Π°Π»ΡŒΡ„Π°-ΠΎΠ±Π»ΡƒΡ‡Π΅Π½ΠΈΠ΅ΠΌ ΠΎΡ‚ ΠΈΠ½ΠΊΠΎΡ€ΠΏΠΎΡ€ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ плутония ΠΈ структурными измСнСниями ΡΠΎΠ΅Π΄ΠΈΠ½ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ Ρ‚ΠΊΠ°Π½ΠΈ Π»Π΅Π³ΠΊΠΈΡ…, Π° Ρ‚Π°ΠΊΠΆΠ΅ систСмы ΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½ΠΎΠ³ΠΎ обновлСния Π² ΠΎΠΏΡƒΡ…ΠΎΠ»ΠΈ ΠΈ ΠΏΠ΅Ρ€ΠΈΡ„ΠΎΠΊΠ°Π»ΡŒΠ½ΠΎΠΉ Ρ‚ΠΊΠ°Π½ΠΈ Π»Π΅Π³ΠΊΠΈΡ…

    Risks of non-cancer diseases in the cohort of personnel involved in the disposal of nuclear munitions

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    The aim was to estimate the risk of non-tumor disease incidence in the cohort of workers involved in the disposal of nuclear munitions as a function of non-radiational and radiological factors.ЦСль Ρ€Π°Π±ΠΎΡ‚Ρ‹ – ΠΎΡ†Π΅Π½ΠΈΡ‚ΡŒ риск заболСваСмости Π½Π΅ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²Ρ‹ΠΌΠΈ заболСваниями Π² ΠΊΠΎΠ³ΠΎΡ€Ρ‚Π΅ Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ², ΡƒΡ‡Π°ΡΡ‚Π²ΡƒΡŽΡ‰ΠΈΡ… Π² ΡƒΡ‚ΠΈΠ»ΠΈΠ·Π°Ρ†ΠΈΠΈ ядСрных боСприпасов, Π² зависимости ΠΎΡ‚ Π½Π΅Ρ€Π°Π΄ΠΈΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… ΠΈ Ρ€Π°Π΄ΠΈΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… Ρ„Π°ΠΊΡ‚ΠΎΡ€ΠΎΠ²

    Incidence risk for malignant neoplasms of the pancreas in a cohort of atomic industry workers

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    Incidence of malignant neoplasms of the pancreas (PMN) has increased over recent decades. Still the evidence on ionizing radiation impact on pancreas tumorogenesis is inconsistent. The study was aimed to assess the impact of occupational radiation exposure on PMN incidence risk among staff members of an atomic industry enterprise - the Federal State Unitary Enterprise Mayak Production Association (Mayak PA) - taking into account non-radiation factors. The study considered the cohort of workers first employed at one of main Mayak PA facilities in 1948-1982 (with the follow-up period until 31 December 2013). Occupational radiation dose estimates were provided by Mayak Worker Dosimetry System 2008 (external gamma-doses) and Mayak Worker Dosimetry System 2013 (internal alpha-doses from incorporated plutonium). Findings of the study revealed a significant increase of the excess relative risk (ERR) of PMC incidence with increasing doses from internal alpha-particles: ERR/Gy=1.19 (95% confidence interval: 0.36 β€” 2.56). No association of prolonged total gamma-radiation exposure with PMN incidence risk was found. Similarly to the background population, the PMN incidence risk in the study cohort was dependent on sex and age of the workers as well as on smoking status and index.Π’ послСдниС дСсятилСтия Π½Π°Π±Π»ΡŽΠ΄Π°Π΅Ρ‚ΡΡ рост заболСваСмости злокачСствСнными новообразованиями (Π—ΠΠž) ΠΏΠΎΠ΄ΠΆΠ΅Π»ΡƒΠ΄ΠΎΡ‡Π½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹ (ΠŸΠ–). Π”Π°Π½Π½Ρ‹Π΅ ΠΎ влиянии ΠΈΠΎΠ½ΠΈΠ·ΠΈΡ€ΡƒΡŽΡ‰Π΅Π³ΠΎ излучСния Π½Π° Π²ΠΎΠ·Π½ΠΈΠΊΠ½ΠΎΠ²Π΅Π½ΠΈΠ΅ ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅ΠΉ этой Π»ΠΎΠΊΠ°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ Π½Π΅ΠΎΠ΄Π½ΠΎΠ·Π½Π°Ρ‡Π½Ρ‹. ЦСлью настоящСго исслСдования являлось ΠΈΠ·ΡƒΡ‡Π΅Π½ΠΈΠ΅ влияния ΠΏΡ€ΠΎΡ„Π΅ΡΡΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ облучСния Π½Π° риск заболСваСмости Π—ΠΠž ΠŸΠ– Ρƒ пСрсонала прСдприятия Π°Ρ‚ΠΎΠΌΠ½ΠΎΠΉ ΠΏΡ€ΠΎΠΌΡ‹ΡˆΠ»Π΅Π½Π½ΠΎΡΡ‚ΠΈ Π€Π“Π£ΠŸ Β«ΠŸΡ€ΠΎΠΈΠ·Π²ΠΎΠ΄ΡΡ‚Π²Π΅Π½Π½ΠΎΠ΅ объСдинСниС «Маяк» (ПО «Маяк») с ΡƒΡ‡Π΅Ρ‚ΠΎΠΌ дСйствия Π½Π΅Ρ€Π°Π΄ΠΈΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… Ρ„Π°ΠΊΡ‚ΠΎΡ€ΠΎΠ². ИсслСдованиС Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ Π² ΠΊΠΎΠ³ΠΎΡ€Ρ‚Π΅ Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ², Π²ΠΏΠ΅Ρ€Π²Ρ‹Π΅ нанятых Π½Π° ΠΏΡ€ΠΎΡ„ΠΈΠ»ΡŒΠ½Ρ‹Π΅ прСдприятия Π² 1948-1982 Π³Π³. (ΠΏΠ΅Ρ€ΠΈΠΎΠ΄ наблюдСния Π΄ΠΎ 31 дСкабря 2013 Π³.). Π˜ΡΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Π½Ρ‹ ΠΎΡ†Π΅Π½ΠΊΠΈ Π΄ΠΎΠ· ΠΏΡ€ΠΎΡ„Π΅ΡΡΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ облучСния, ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹Π΅ Π½Π° основании дозимСтричСских систСм «ДозимСтричСская систСма Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ² ПО «Маяк»-2008Β» (Π΄ΠΎΠ·Ρ‹ внСшнСго Π³Π°ΠΌΠΌΠ°-облучСния) ΠΈ «ДозимСтричСская систСма Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ² ПО «Маяк»-2013Β» (Π΄ΠΎΠ·Ρ‹ Π²Π½ΡƒΡ‚Ρ€Π΅Π½Π½Π΅Π³ΠΎ Π°Π»ΡŒΡ„Π°-облучСния ΠΎΡ‚ ΠΈΠ½ΠΊΠΎΡ€ΠΏΠΎΡ€ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ плутония). Π’ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π΅ ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½Π½ΠΎΠ³ΠΎ исслСдования ΠΎΠ±Π½Π°Ρ€ΡƒΠΆΠ΅Π½ΠΎ статистичСски Π·Π½Π°Ρ‡ΠΈΠΌΠΎΠ΅ ΡƒΠ²Π΅Π»ΠΈΡ‡Π΅Π½ΠΈΠ΅ ΠΈΠ·Π±Ρ‹Ρ‚ΠΎΡ‡Π½ΠΎΠ³ΠΎ ΠΎΡ‚Π½ΠΎΡΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠ³ΠΎ риска (ИОР) заболСваСмости Π—ΠΠž ΠŸΠ– с ΡƒΠ²Π΅Π»ΠΈΡ‡Π΅Π½ΠΈΠ΅ΠΌ Π΄ΠΎΠ·Ρ‹ Π²Π½ΡƒΡ‚Ρ€Π΅Π½Π½Π΅Π³ΠΎ Π°Π»ΡŒΡ„Π°-облучСния: ИОР/Π“Ρ€ = 1,19 (95% Π΄ΠΎΠ²Π΅Ρ€ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹ΠΉ ΠΈΠ½Ρ‚Π΅Ρ€Π²Π°Π» 0,36 - 2,56). НС выявлСно влияния ΠΏΡ€ΠΎΠ»ΠΎΠ½Π³ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ ΠΎΠ±Ρ‰Π΅Π³ΠΎ внСшнСго Π³Π°ΠΌΠΌΠ°-облучСния Π½Π° риск заболСваСмости Π—ΠΠž ΠŸΠ–. Риск заболСваСмости Π—ΠΠž ΠŸΠ– Π² ΠΈΠ·ΡƒΡ‡Π°Π΅ΠΌΠΎΠΉ ΠΊΠΎΠ³ΠΎΡ€Ρ‚Π΅, ΠΊΠ°ΠΊ ΠΈ Π² ΠΎΠ±Ρ‰Π΅ΠΉ популяции, зависСл ΠΎΡ‚ ΠΏΠΎΠ»Π° ΠΈ возраста Ρ€Π°Π±ΠΎΡ‚Π½ΠΈΠΊΠΎΠ², статуса ΠΈ Π²Π΅Π»ΠΈΡ‡ΠΈΠ½Ρ‹ индСкса курСния
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