24 research outputs found

    Π˜ΠΌΠΌΡƒΠ½ΠΎΠ³ΠΈΡΡ‚ΠΎΡ…ΠΈΠΌΠΈΡ‡Π΅ΡΠΊΠΎΠ΅ исслСдованиС ΠΏΡ€ΠΎΠ»ΠΈΡ„Π΅Ρ€Π°Ρ‚ΠΈΠ²Π½ΠΎΠΉ активности ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²Ρ‹Ρ… ΠΊΠ»Π΅Ρ‚ΠΎΠΊ ΠΏΡ€ΠΈ Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… градациях Π°Π΄Π΅Π½ΠΎΠΊΠ°Ρ€Ρ†ΠΈΠ½ΠΎΠΌΡ‹ ΠΏΡ€Π΅Π΄ΡΡ‚Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹

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    Prostate cancer is one of the leading causes of men death in developed countries. Modern diagnostic methods, including a puncture biopsy of the prostate gland, make it possible to verify oncology in the early stages, however, routine studies do not always allow to predict the course of the disease and outcome. The aim of our study was to analyze the clinical, morphological and immunohistochemical features of the proliferative activity of adenocarcinoma cells using the Ki-67 marker, to compare the degree of proliferative activity in tumors of various degrees of malignancy (according to Gleason’s classification), as well as to compare this indicator with the clinical stage of the disease, the level of prostate-specific antigen in the blood, the size of the prostate gland. Materials and Methods: On the basis of the City Clinical Hospital No. 31 and the Veteran Hospital No. 2, paraffin blocks with material obtained as a result of prostate biopsy, transurethral resection, and radical prostatectomy were selected. A morphological and immunohistochemical study of the material with the Ki-67 marker and a quantitative assessment of the degree of proliferative activity were carried out. Data were analyzed using the STATISTICA 10.0 program using estimates of the normality of the data distribution according to the Shapiro-Wilk W-test, the significance of differences was estimated using the Mann-Whitney U-test, and correlation relationships using Spearman’s correlation coefficient. Results: Statistically significant differences in the degree of proliferative activity in groups differing in the degree of differentiation were revealed. A statistically significant direct correlation of moderate severity was revealed when comparing proliferative activity with the degree of differentiation according to the Gleason system (rs = 0.523) and the clinical stage of the disease (rs = 0.646). No statistically significant correlation was found between indicators such as prostate-specific antigen level, age, prostate volume, and proliferative activity index. Conclusion: taking into account the proliferative activity index in addition to clinical and morphological studies helps to diagnose and subsequently predict the course of prostate cancer.ΠΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½ΠΎΡΡ‚ΡŒ. Π Π°ΠΊ ΠΏΡ€Π΅Π΄ΡΡ‚Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹ являСтся ΠΎΠ΄Π½ΠΎΠΉ ΠΈΠ· Π²Π΅Π΄ΡƒΡ‰ΠΈΡ… ΠΏΡ€ΠΈΡ‡ΠΈΠ½ смСрти муТского насСлСния ΠΎΡ‚ онкологичСских Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠΉ Π² Ρ€Π°Π·Π²ΠΈΡ‚Ρ‹Ρ… странах. Π‘ΠΎΠ²Ρ€Π΅ΠΌΠ΅Π½Π½Ρ‹Π΅ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ диагностики, Π² Ρ‚ΠΎΠΌ числС пункционная биопсия ΠΏΡ€Π΅Π΄ΡΡ‚Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹, ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡŽΡ‚ Π²Π΅Ρ€ΠΈΡ„ΠΈΡ†ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ онкологию Π½Π° Ρ€Π°Π½Π½ΠΈΡ… стадиях, ΠΎΠ΄Π½Π°ΠΊΠΎ Ρ€ΡƒΡ‚ΠΈΠ½Π½Ρ‹Π΅ исслСдования Π½Π΅ всСгда ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡŽΡ‚ ΡΠΏΡ€ΠΎΠ³Π½ΠΎΠ·ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ Ρ‚Π΅Ρ‡Π΅Π½ΠΈΠ΅ ΠΈ исход заболСвания. ЦСль: провСсти Π°Π½Π°Π»ΠΈΠ· ΠΊΠ»ΠΈΠ½ΠΈΠΊΠΎ-морфологичСских ΠΈ иммуногистохимичСских особСнностСй ΠΊΠ»Π΅Ρ‚ΠΎΠΊ Π°Π΄Π΅Π½ΠΎΠΊΠ°Ρ€Ρ†ΠΈΠ½ΠΎΠΌΡ‹, с использованиСм ΠΌΠ°Ρ€ΠΊΠ΅Ρ€Π° Ki-67, сопоставлСниС стСпСни ΠΏΡ€ΠΎΠ»ΠΈΡ„Π΅Ρ€Π°Ρ‚ΠΈΠ²Π½ΠΎΠΉ активности Π² опухолях Ρ€Π°Π·Π»ΠΈΡ‡Π½ΠΎΠΉ стСпСни злокачСствСнности (ΠΏΠΎ классификации Глисона), Π° Ρ‚Π°ΠΊΠΆΠ΅ сравнСниС Π΄Π°Π½Π½ΠΎΠ³ΠΎ показатСля с клиничСской стадиСй заболСвания, ΡƒΡ€ΠΎΠ²Π½Π΅ΠΌ простатспСцифичСского Π°Π½Ρ‚ΠΈΠ³Π΅Π½Π° Π² ΠΊΡ€ΠΎΠ²ΠΈ, объСмом ΠΏΡ€Π΅Π΄ΡΡ‚Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹. ΠœΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Ρ‹ ΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹: На Π±Π°Π·Π΅ Π“Π‘Π£Π— Π”Π—Πœ «Городская клиничСская Π±ΠΎΠ»ΡŒΠ½ΠΈΡ†Π° β„– 31Β» ΠΈ Β«Π“ΠΎΡΠΏΠΈΡ‚Π°Π»ΡŒ для Π²Π΅Ρ‚Π΅Ρ€Π°Π½ΠΎΠ² Π²ΠΎΠΈΠ½ β„– 2Β» Π±Ρ‹Π»ΠΈ ΠΎΡ‚ΠΎΠ±Ρ€Π°Π½Ρ‹ ΠΏΠ°Ρ€Π°Ρ„ΠΈΠ½ΠΎΠ²Ρ‹Π΅ Π±Π»ΠΎΠΊΠΈ с ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»ΠΎΠΌ, ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹ΠΌ Π² Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π΅ биопсии ΠΏΡ€Π΅Π΄ΡΡ‚Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹, Ρ‚Ρ€Π°Π½ΡΡƒΡ€Π΅Ρ‚Ρ€Π°Π»ΡŒΠ½ΠΎΠΉ Ρ€Π΅Π·Π΅ΠΊΡ†ΠΈΠΈ ΠΈ Ρ€Π°Π΄ΠΈΠΊΠ°Π»ΡŒΠ½ΠΎΠΉ простатэктомии. ΠŸΡ€ΠΎΠ²Π΅Π΄Π΅Π½ΠΎ морфологичСскоС ΠΈ иммуногистохимичСскоС исслСдованиС ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Π° с ΠΌΠ°Ρ€ΠΊΠ΅Ρ€ΠΎΠΌ Ki-67. ΠŸΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹Π΅ Π΄Π°Π½Π½Ρ‹Π΅ ΠΏΡ€ΠΎΠ°Π½Π°Π»ΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Π½Ρ‹ ΠΏΡ€ΠΈ ΠΏΠΎΠΌΠΎΡ‰ΠΈ ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌΡ‹ STATISTICA 10.0 с использованиСм ΠΎΡ†Π΅Π½ΠΊΠΈ Π½ΠΎΡ€ΠΌΠ°Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ распрСдСлСния Π΄Π°Π½Π½Ρ‹Ρ… ΠΏΠΎ W-ΠΊΡ€ΠΈΡ‚Π΅Ρ€ΠΈΡŽ Π¨Π°ΠΏΠΈΡ€ΠΎ-Π£ΠΈΠ»ΠΊΠ°, Π΄ΠΎΡΡ‚ΠΎΠ²Π΅Ρ€Π½ΠΎΡΡ‚ΡŒ Ρ€Π°Π·Π»ΠΈΡ‡ΠΈΠΉ ΠΎΡ†Π΅Π½ΠΈΠ²Π°Π»Π°ΡΡŒ с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ U-критСрия Манна-Π£ΠΈΡ‚Π½ΠΈ, Π° коррСляционныС Π²Π·Π°ΠΈΠΌΠΎΠΎΡ‚Π½ΠΎΡˆΠ΅Π½ΠΈΡ с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ коэффициСнта коррСляции Π‘ΠΏΠΈΡ€ΠΌΠ΅Π½Π°. Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹: ВыявлСны статистичСски Π·Π½Π°Ρ‡ΠΈΠΌΡ‹Π΅ отличия ΠΏΡ€ΠΎΠ»ΠΈΡ„Π΅Ρ€Π°Ρ‚ΠΈΠ²Π½ΠΎΠΉ активности Π² Π³Ρ€ΡƒΠΏΠΏΠ°Ρ… злокачСствСнной ΠΎΠΏΡƒΡ…ΠΎΠ»ΠΈ с Ρ€Π°Π·Π½ΠΎΠΉ ΡΡ‚Π΅ΠΏΠ΅Π½ΡŒΡŽ Π΄ΠΈΡ„Ρ„Π΅Ρ€Π΅Π½Ρ†ΠΈΡ€ΠΎΠ²ΠΊΠΈ. БтатистичСски значимая прямая коррСляция ΡƒΠΌΠ΅Ρ€Π΅Π½Π½ΠΎΠΉ выраТСнности Π±Ρ‹Π»Π° выявлСна ΠΏΡ€ΠΈ сопоставлСнии ΠΏΡ€ΠΎΠ»ΠΈΡ„Π΅Ρ€Π°Ρ‚ΠΈΠ²Π½ΠΎΠΉ активности со ΡΡ‚Π΅ΠΏΠ΅Π½ΡŒΡŽ Π΄ΠΈΡ„Ρ„Π΅Ρ€Π΅Π½Ρ†ΠΈΡ€ΠΎΠ²ΠΊΠΈ ΠΏΠΎ систСмС Глисона (rs = 0,523) ΠΈ клиничСской стадиСй заболСвания (rs = 0,646). ΠœΠ΅ΠΆΠ΄Ρƒ Ρ‚Π°ΠΊΠΈΠΌΠΈ показатСлями, ΠΊΠ°ΠΊ ΡƒΡ€ΠΎΠ²Π΅Π½ΡŒ простатспСцифичСского Π°Π½Ρ‚ΠΈΠ³Π΅Π½Π°, возраст, объСм ΠΏΡ€Π΅Π΄ΡΡ‚Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹ ΠΈ индСксом ΠΏΡ€ΠΎΠ»ΠΈΡ„Π΅Ρ€Π°Ρ‚ΠΈΠ²Π½ΠΎΠΉ активности статистичСски Π·Π½Π°Ρ‡ΠΈΠΌΡ‹Ρ… коррСляционных зависимостСй ΠΎΠ±Π½Π°Ρ€ΡƒΠΆΠ΅Π½ΠΎ Π½Π΅ Π±Ρ‹Π»ΠΎ. Π—Π°ΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΠ΅: ΡƒΡ‡Π΅Ρ‚ индСкса ΠΏΡ€ΠΎΠ»ΠΈΡ„Π΅Ρ€Π°Ρ‚ΠΈΠ²Π½ΠΎΠΉ активности Π² Π΄ΠΎΠΏΠΎΠ»Π½Π΅Π½ΠΈΠ΅ ΠΊ ΠΊΠ»ΠΈΠ½ΠΈΠΊΠΎ-морфологичСскому исслСдованию способствуСт диагностикС ΠΈ ΠΏΠΎΡΠ»Π΅Π΄ΡƒΡŽΡ‰Π΅ΠΌΡƒ ΠΏΡ€ΠΎΠ³Π½ΠΎΠ·ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΡŽ тСчСния Ρ€Π°ΠΊΠ° ΠΏΡ€Π΅Π΄ΡΡ‚Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹

    Immunohistochemical study of Ki-67, p53 and Notch1 expressions in prostate cancer of different grades [Immunogistokhimicheskoe issledovanie ekspressii Ki-67, p53 i Notch1 v adenokartsinomakh predstatel'noi zhelezy razlichnoi stepeni zlokachestvennosti]

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    OBJECTIVE: To determine the prognostic value of the expression of Ki-67, p53, and Notch1 in the diagnosis of prostate cancer. MATERIAL AND METHODS: Surgical and diagnostic materials obtained from patients with benign prostatic hyperplasia, prostate intraepithelial neoplasia, and prostate cancer of different grades underwent studies; a total of 98 patients were examined. Cell antigens were determined using rabbit anti-Ki-67 monoclonal antibodies (Clone SP6), mouse anti-p53 monoclonal antibodies (Clone Y5), and recombinant anti-Notch1 antibodies (Clone EP1238Y). RESULTS: Comparing Ki-67, p53, and Notch1 expression indices revealed statistically significant differences. There was a significant direct correlation between Ki-67 and p53 expression indices and prostate cancer grade groups based on the morphological Gleason grading system (rs=0.736; p<0.001; rs=0.682; p=0.035, respectively) and a strong inverse correlation between Notch1 expression and prostate cancer grade groups (rs= -0.425, p<0.001). CONCLUSION: Notch1 expression in conjunction with the low proliferative activity of cells and the absence of p53 (Y5) protein may suggest that the mechanism of apoptosis is preserved in tumor cells, which expands indications for medical treatment of prostate cancer.Π¦Π•Π›Π¬ Π˜Π‘Π‘Π›Π•Π”ΠžΠ’ΠΠΠ˜Π―: ΠžΠΏΡ€Π΅Π΄Π΅Π»ΠΈΡ‚ΡŒ ΠΏΡ€ΠΎΠ³Π½ΠΎΡΡ‚ΠΈΡ‡Π΅ΡΠΊΡƒΡŽ Π·Π½Π°Ρ‡ΠΈΠΌΠΎΡΡ‚ΡŒ экспрСссии Ki-67, p53 ΠΈ Notch1 Π² диагностикС Ρ€Π°ΠΊΠ° ΠΏΡ€Π΅Π΄ΡΡ‚Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹. ΠœΠΠ’Π•Π Π˜ΠΠ› И ΠœΠ•Π’ΠžΠ”Π«: ИсслСдован ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΎΠ½Π½Ρ‹ΠΉ ΠΈ диагностичСский ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π», ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹ΠΉ ΠΎΡ‚ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² с доброкачСствСнной Π³ΠΈΠΏΠ΅Ρ€ΠΏΠ»Π°Π·ΠΈΠ΅ΠΉ, простатичСской ΠΈΠ½Ρ‚Ρ€Π°ΡΠΏΠΈΡ‚Π΅Π»ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ Π½Π΅ΠΎΠΏΠ»Π°Π·ΠΈΠ΅ΠΉ ΠΈ Ρ€Π°ΠΊΠΎΠΌ ΠΏΡ€Π΅Π΄ΡΡ‚Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹ Ρ€Π°Π·Π»ΠΈΡ‡Π½ΠΎΠΉ стСпСни злокачСствСнности, всСго 98 ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ². ΠžΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ ΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½Ρ‹Ρ… Π°Π½Ρ‚ΠΈΠ³Π΅Π½ΠΎΠ² ΠΎΡΡƒΡ‰Π΅ΡΡ‚Π²Π»ΡΠ»ΠΎΡΡŒ ΠΏΡ€ΠΈ ΠΏΠΎΠΌΠΎΡ‰ΠΈ ΠΌΠΎΠ½ΠΎΠΊΠ»ΠΎΠ½Π°Π»ΡŒΠ½Ρ‹Ρ… ΠΊΡ€ΠΎΠ»ΠΈΡ‡ΡŒΠΈΡ… Π°Π½Ρ‚ΠΈΡ‚Π΅Π» ΠΊ Π±Π΅Π»ΠΊΡƒ Ki-67 (Clone SP6), ΠΌΡ‹ΡˆΠΈΠ½Ρ‹Ρ… Π°Π½Ρ‚ΠΈΡ‚Π΅Π» ΠΊ Π±Π΅Π»ΠΊΡƒ p53 (Clone Y5), Ρ€Π΅ΠΊΠΎΠΌΠ±ΠΈΠ½Π°Π½Ρ‚Π½Ρ‹Ρ… Π°Π½Ρ‚ΠΈΡ‚Π΅Π» ΠΊ Π±Π΅Π»ΠΊΡƒ Notch1 (Clone EP1238Y). РЕЗУЛЬВАВЫ: ВыявлСны статистичСски Π·Π½Π°Ρ‡ΠΈΠΌΡ‹Π΅ различия ΠΏΡ€ΠΈ сравнСнии ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»Π΅ΠΉ экспрСссии Ki-67, p53 ΠΈ Notch1. УстановлСна достовСрная прямая коррСляционная связь ΠΌΠ΅ΠΆΠ΄Ρƒ показатСлями экспрСссии Ki-67, p53 ΠΈ прогностичСскими Π³Ρ€ΡƒΠΏΠΏΠ°ΠΌΠΈ Ρ€Π°ΠΊΠ° ΠΏΡ€Π΅Π΄ΡΡ‚Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹, основанными Π½Π° морфологичСской классификации ΠΏΠΎ Глисону (rs=0,736, p<0,001; rs=0,682, p=0,035 соотвСтствСнно), Π° Ρ‚Π°ΠΊΠΆΠ΅ выявлСна сильная обратная связь ΠΌΠ΅ΠΆΠ΄Ρƒ экспрСссиСй Notch1 ΠΈ прогностичСскими Π³Ρ€ΡƒΠΏΠΏΠ°ΠΌΠΈ Ρ€Π°ΠΊΠ° ΠΏΡ€Π΅Π΄ΡΡ‚Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹ (rs=–0,425, p<0,001). Π—Π°ΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΠ΅. ЭкспрСссия Notch1 Π² сочСтании с Π½ΠΈΠ·ΠΊΠΎΠΉ ΠΏΡ€ΠΎΠ»ΠΈΡ„Π΅Ρ€Π°Ρ‚ΠΈΠ²Π½ΠΎΠΉ Π°ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒΡŽ ΠΊΠ»Π΅Ρ‚ΠΎΠΊ ΠΈ отсутствиСм Π±Π΅Π»ΠΊΠ° p53 (Y5) ΠΌΠΎΠΆΠ΅Ρ‚ ΡΠ²ΠΈΠ΄Π΅Ρ‚Π΅Π»ΡŒΡΡ‚Π²ΠΎΠ²Π°Ρ‚ΡŒ ΠΎ сохранности ΠΌΠ΅Ρ…Π°Π½ΠΈΠ·ΠΌΠ° Π°ΠΏΠΎΠΏΡ‚ΠΎΠ·Π° Π² ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²Ρ‹Ρ… ΠΊΠ»Π΅Ρ‚ΠΊΠ°Ρ…, Ρ‡Ρ‚ΠΎ Ρ€Π°ΡΡˆΠΈΡ€ΡΠ΅Ρ‚ показания ΠΊ консСрвативному Π»Π΅Ρ‡Π΅Π½ΠΈΡŽ Ρ€Π°ΠΊΠ° ΠΏΡ€Π΅Π΄ΡΡ‚Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹

    Spectroscopic and morphologic characteristics of diamonds from Kimberlite pipe named after V.P. Grib

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    Comparative EPR analysis of paramagnetic centers in diamonds from Kimberlite pipe named after V.P. Grib (KPG) and other tubes of Archangelsc diamond-bearing province is presented. In the KPG samples, diamonds with EPR spectra of 1 group were present in much less content than diamonds from other pipes. The diamonds in KPG samples are mostly those of 2 group (with predominant center P2). Since P2 centers are formed (as known) upon crystals' elastic deformation, it's concluded, that epigenetic processes of elastic deformation in KPG diamonds have manifested stronger than in diamonds of other considered tubes

    Spectroscopic and morphologic characteristics of diamonds from Kimberlite pipe named after V.P. Grib

    No full text
    Comparative EPR analysis of paramagnetic centers in diamonds from Kimberlite pipe named after V.P. Grib (KPG) and other tubes of Archangelsc diamond-bearing province is presented. In the KPG samples, diamonds with EPR spectra of 1 group were present in much less content than diamonds from other pipes. The diamonds in KPG samples are mostly those of 2 group (with predominant center P2). Since P2 centers are formed (as known) upon crystals' elastic deformation, it's concluded, that epigenetic processes of elastic deformation in KPG diamonds have manifested stronger than in diamonds of other considered tubes

    The cinnamyl alcohol dehydrogenase gene family is involved in the response to Fusarium oxysporum in resistant and susceptible flax genotypes

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    Flax (Linum usitatissimurn L.) is used for the production of textile, oils, pharmaceuticals, and composite materials. Fusarium wilt, caused by the fungus Fusarium oxysporum f. sp. lini, is a very harmful disease that reduces flax production. Flax cultivars that are resistant to Fusarium wilt have been developed, and the genes that are involved in the host response to F. oxysporum have been identified. However, the mechanisms underlying resistance to this pathogen remain unclear. In the present study, we used transcriptome sequencing data obtained from susceptible and resistant flax genotypes grown under control conditions or F. oxysporum infection. Approximately 250 million reads, generated with an Illumina NextSeq instrument, were analyzed. After filtering to exclude the F. oxysporum transcriptome, the remaining reads were mapped to the L. usitatissimum genome and quantified. Then, the expression levels of cinnamyl alcohol dehydrogenase (CAD) family genes, which are known to be involved in the response to F. oxysporum, were evaluated in resistant and susceptible flax genotypes. Expression alterations in response to the pathogen were detected for all 13 examined CAD genes. The most significant differences in expression between control and infected plants were observed for CADIB, CAD4A, CAD5A, and CAD5B, with strong upregulation of CAD1B, CAD5A, and CAD5B and strong downregulation of CAD4A. When plants were grown under the same conditions, the expression levels were similar in all studied flax genotypes for most CAD genes, and statistically significant differences in expression between resistant and susceptible genotypes were only observed for CAD1A. Our study indicates the strong involvement of CAD genes in flax response to F. oxysporum but brings no evidence of their role as resistance gene candidates. These findings contribute to the understanding of the mechanisms underlying the response of flax to F. oxysporum infection and the role of CAD genes in stress resistance

    Immunohistochemical expression of nanog protein in prostate cancer cells of distinct grade groups [Π˜ΠœΠœΠ£ΠΠžΠ“Π˜Π‘Π’ΠžΠ₯Π˜ΠœΠ˜Π§Π•Π‘ΠšΠΠ― Π­ΠšΠ‘ΠŸΠ Π•Π‘Π‘Π˜Π― Π‘Π•Π›ΠšΠ NANOG Π’ ΠšΠ›Π•Π’ΠšΠΠ₯ РАКА ΠŸΠ Π•Π”Π‘Π’ΠΠ’Π•Π›Π¬ΠΠžΠ™ Π–Π•Π›Π•Π—Π« Π ΠΠ—Π›Π˜Π§ΠΠ«Π₯ ΠŸΠ ΠžΠ“ΠΠžΠ‘Π’Π˜Π§Π•Π‘ΠšΠ˜Π₯ Π“Π Π£ΠŸΠŸ]

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    Prostate cancer is the most common type of cancer among men, which is mainly due to extensive use of screening tests and high total number of prostate biopsies. Verification of tumors with poorer prognosis is the primary goal of prostate cancer management. The study was aimed to determine the clinical and morphological associations and the prognostic value of the Nanog protein expression in prostate cancer of distinct Grade Groups. We used the prostate tissue specimens obtained during surgery, and the biopsy specimens, the total of 89 cases. Histological and immunohistochemical assessment was performed using antibodies to Ki-67 and Nanog. Correlations between the expression of markers and the Grade Groups were revealed using the Spearman's rank correlation coefficient, and the correlation with clinical and morphological characteristics was determined using the chi-squared test (Ο‡2). There was a positive correlation between the expression of Ki-67 and Nanog, and the Grade Group numerical order (rs = 0.619, p &lt; 0.001 and rs = 0.786, p &lt; 0.001 respectively). We managed to find the relationship between the high Nanog expression and the extraprostatic extension (p = 0.041). High expression of Nanog protein in the prostate cancer cells was associated with a higher-grade adenocarcinoma and indicated a poor prognosis. Β© 2020 Pirogov Russian National Research Medical University. All rights reserved

    Einfluss der Waermebehandlung auf Struktur und Eigenschaften von Hartmetallen auf der Basis von Wolframcarbid mit Eisen-Nickel-Binder

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    Translated from Russian: Vliyanie termoobrabotki na strukturu i svoistva tverdogo splava na osnove karbida vol'frama s zhelezonikelevoi svyazkoi. Published in: Nauchnye trudy. Vsesoyuznyi nauchno-issledovatel'skii i proektnyi institut tugoplavkikh metallov i tverdykh splavov (1977) no. 17 p. 20-25.SIGLEDEGerman

    ВлияниС ΠΏΡ€ΠΎΡ‚ΠΈΠ²ΠΎΠΈΡˆΠ΅ΠΌΠΈΡ‡Π΅ΡΠΊΠΎΠΉ Ρ‚Π΅Ρ€Π°ΠΏΠΈΠΈ Π½Π° восстановлСниС Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΈ ΠΌΠΎΡ‡Π΅Π²ΠΎΠ³ΠΎ пузыря послС острой Π·Π°Π΄Π΅Ρ€ΠΆΠΊΠΈ ΠΌΠΎΡ‡ΠΈ

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    Introduction. Chronic ischemia is an important pathogenic factor of urination disorders in patients with benign prostatic hyperplasia (BPH). The aim of this study was to investigate the rationale for administering the drugs with anti-ischemic action in order to improve the urinary bladder function after acute urinary retention (AUR). Materials and methods. In our study, we investigated the effectiveness of anti-ischemic drugs approved for clinical trials (alpha-tocopherol, mexidol, pentoxyphyllinum and diltiazemum) on lowering the intensity of urinary bladder lesion and on the recovery of urination to a adequate level, in comparison with traditional alpha blocker therapy. We modelled AUR on 35 female rats and also used the case records of 90 patients with BPH accompanied by AUR. Results. According to the experimental studies, modelling of four-hour AUR was accompanied by significant damage of the detrusor smooth muscle mitochondria caused by reactive oxygen species production. These changes are cytotoxic and may stay behind urinary bladder dysfunction, due to the release of enzymes into the urine and the decrease of enzymatic activity in the detrusor cells. Anti-ischemic therapy preserves functional activity of smooth muscle mitochondria and prevents the excessive production of oxygen radicals. Consequently, there is a significant decrease of enzymeuria and maintenance of high enzymatic activity of in detrusor cells, especially creatine phosphokinase (CPK), which participates in energy supply for muscle contraction. The effectiveness of anti-ischemic therapy was comparable to protective action of doxazosin, an alpha-blocker; and several characteristics of the therapy were even better, in particular, with respect to CPK activity. Clinical results indicate that anti-ischemic therapy more effectively promotes the recovery of self-assisted urination, especially in patients with a larger residual urine volume and long anamnesis of the disease, in comparison with tamsulosin alpha-blocker therapy of patients with AUR. In addition, it prevents the damage of detrusor cells caused by AUR and more effectively lowers its negative effect on kidney function. Conclusion. Our results indicate the rationale for further research on the necessity of administering the anti-ischemic drugs in order to improve urination in patients with BPH.Π’Π²Π΅Π΄Π΅Π½ΠΈΠ΅. Π₯роничСская ишСмия признаСтся Π²Π°ΠΆΠ½Ρ‹ΠΌ патогСнСтичСским Ρ„Π°ΠΊΡ‚ΠΎΡ€ΠΎΠΌ расстройств мочСиспускания Ρƒ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… Π”Π“ΠŸΠ–. ЦСлью Π΄Π°Π½Π½ΠΎΠΉ Ρ€Π°Π±ΠΎΡ‚Ρ‹ Π±Ρ‹Π»ΠΎ ΠΈΠ·ΡƒΡ‡Π΅Π½ΠΈΠ΅ цСлСсообразности Π²ΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΡ Ρ„Π°Ρ€ΠΌΠ°ΠΊΠΎΠΏΠ΅ΠΉΠ½Ρ‹Ρ… ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚ΠΎΠ² с ΠΏΡ€ΠΎΡ‚ΠΈΠ²ΠΎΠΈΡˆΠ΅ΠΌΠΈΡ‡Π΅ΡΠΊΠΈΠΌ дСйствиСм для восстановлСния Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΈ ΠΌΠΎΡ‡Π΅Π²ΠΎΠ³ΠΎ пузыря послС острой Π·Π°Π΄Π΅Ρ€ΠΆΠΊΠΈ ΠΌΠΎΡ‡ΠΈ (ΠžΠ—Πœ). ΠœΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Ρ‹ ΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ исслСдования. Π’ ΠΎΠΏΡ‹Ρ‚Π°Ρ… Π½Π° 35 самках крыс, Ρƒ ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Ρ… ΠΌΠΎΠ΄Π΅Π»ΠΈΡ€ΠΎΠ²Π°Π»ΠΈ ΠžΠ—Πœ, ΠΈ ΠΏΠΎ Π΄Π°Π½Π½Ρ‹ΠΌ историй Π±ΠΎΠ»Π΅Π·Π½ΠΈ 60 Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… Π”Π“ΠŸΠ–, ослоТнившСйся ΠžΠ—Πœ, ΠΈΠ·ΡƒΡ‡Π΅Π½Π° ΡΡ„Ρ„Π΅ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ использования ΠΏΡ€ΠΎΡ‚ΠΈΠ²ΠΎΠΈΡˆΠ΅ΠΌΠΈΡ‡Π΅ΡΠΊΠΎΠΉ Ρ‚Π΅Ρ€Π°ΠΏΠΈΠΈ комплСксом Ρ„Π°Ρ€ΠΌΠ°ΠΊΠΎΠΏΠ΅ΠΉΠ½Ρ‹Ρ… ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚ΠΎΠ², Ρ€Π°Π·Ρ€Π΅ΡˆΠ΅Π½Π½Ρ‹Ρ… для клиничСского использования (Π°-Ρ‚ΠΎΠΊΠΎΡ„Π΅Ρ€ΠΎΠ», мСксидол, пСнтоксифиллин, Π΄ΠΈΠ»Ρ‚ΠΈΠ°Π·Π΅ΠΌ) для ΡƒΠΌΠ΅Π½ΡŒΡˆΠ΅Π½ΠΈΡ выраТСнности поврСТдСния ΠΌΠΎΡ‡Π΅Π²ΠΎΠ³ΠΎ пузыря ΠΈ восстановлСния Π°Π΄Π΅ΠΊΠ²Π°Ρ‚Π½ΠΎΠ³ΠΎ мочСиспускания Π² сравнСнии с Ρ‚Ρ€Π°Π΄ΠΈΡ†ΠΈΠΎΠ½Π½ΠΎ ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠ΅ΠΌΠΎΠΉ Ρ‚Π΅Ρ€Π°ΠΏΠΈΠ΅ΠΉ Ξ±-Π°Π΄Ρ€Π΅Π½ΠΎΠ±Π»ΠΎΠΊΠ°Ρ‚ΠΎΡ€Π°ΠΌΠΈ. Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹. Π­ΠΊΡΠΏΠ΅Ρ€ΠΈΠΌΠ΅Π½Ρ‚Π°Π»ΡŒΠ½Ρ‹Π΅ исслСдования ΠΏΠΎΠΊΠ°Π·Π°Π»ΠΈ, Ρ‡Ρ‚ΠΎ ΠΌΠΎΠ΄Π΅Π»ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ 4-Ρ… часовой ΠžΠ—Πœ сопровоТдаСтся Π²Ρ‹Ρ€Π°ΠΆΠ΅Π½Π½Ρ‹ΠΌ ΠΏΠΎΠ²Ρ€Π΅ΠΆΠ΄Π΅Π½ΠΈΠ΅ΠΌ ΠΌΠΈΡ‚ΠΎΡ…ΠΎΠ½Π΄Ρ€ΠΈΠΉ Π³Π»Π°Π΄ΠΊΠΎΠΌΡ‹ΡˆΠ΅Ρ‡Π½Ρ‹Ρ… ΠΊΠ»Π΅Ρ‚ΠΎΠΊ Π΄Π΅Ρ‚Ρ€ΡƒΠ·ΠΎΡ€Π° ΠΏΡ€ΠΈ Π°ΠΊΡ‚ΠΈΠ²Π°Ρ†ΠΈΠΈ ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ†ΠΈΠΈ ΠΈΠΌΠΈ Π°ΠΊΡ‚ΠΈΠ²Π½Ρ‹Ρ… Ρ„ΠΎΡ€ΠΌ кислорода. Π­Ρ‚ΠΈ измСнСния ΠΎΠΊΠ°Π·Ρ‹Π²Π°ΡŽΡ‚ цитотоксичСский эффСкт, ΠΏΡ€ΠΎΡΠ²Π»ΡΡŽΡ‰ΠΈΠΉΡΡ Π² Π²Ρ‹Ρ…ΠΎΠ΄Π΅ Ρ„Π΅Ρ€ΠΌΠ΅Π½Ρ‚ΠΎΠ² ΠΈΠ· ΠΊΠ»Π΅Ρ‚ΠΎΠΊ Π² ΠΌΠΎΡ‡Ρƒ ΠΈ сниТСниСм Ρ„Π΅Ρ€ΠΌΠ΅Π½Ρ‚Π°Ρ‚ΠΈΠ²Π½ΠΎΠΉ активности Π² ΠΊΠ»Π΅Ρ‚ΠΊΠ°Ρ… Π΄Π΅Ρ‚Ρ€ΡƒΠ·ΠΎΡ€Π°, Ρ‡Ρ‚ΠΎ ΠΌΠΎΠΆΠ΅Ρ‚ Π»Π΅ΠΆΠ°Ρ‚ΡŒ Π² основС дисфункции ΠΌΠΎΡ‡Π΅Π²ΠΎΠ³ΠΎ пузыря. ΠŸΡ€ΠΎΡ‚ΠΈΠ²ΠΎΠΈΡˆΠ΅ΠΌΠΈΡ‡Π΅ΡΠΊΠ°Ρ тСрапия сохраняСт Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½ΡƒΡŽ ΠΏΠΎΠ»Π½ΠΎΡ†Π΅Π½Π½ΠΎΡΡ‚ΡŒ ΠΌΠΈΡ‚ΠΎΡ…ΠΎΠ½Π΄Ρ€ΠΈΠΉ Π³Π»Π°Π΄ΠΊΠΎΠΌΡ‹ΡˆΠ΅Ρ‡Π½Ρ‹Ρ… ΠΊΠ»Π΅Ρ‚ΠΎΠΊ ΠΈ ΠΏΡ€Π΅Π΄ΠΎΡ‚Π²Ρ€Π°Ρ‰Π°Π΅Ρ‚ ΠΈΠ·Π±Ρ‹Ρ‚ΠΎΡ‡Π½ΡƒΡŽ ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ†ΠΈΡŽ кислородных Ρ€Π°Π΄ΠΈΠΊΠ°Π»ΠΎΠ² ΠΈ оксидативный стрСсс, слСдствиСм Ρ‡Π΅Π³ΠΎ являСтся достовСрноС ΡƒΠΌΠ΅Π½ΡŒΡˆΠ΅Π½ΠΈΠ΅ Π³ΠΈΠΏΠ΅Ρ€Ρ„Π΅Ρ€ΠΌΠ΅Π½Ρ‚ΡƒΡ€ΠΈΠΈ ΠΈ сохранСниС высокой Ρ„Π΅Ρ€ΠΌΠ΅Π½Ρ‚Π°Ρ‚ΠΈΠ²Π½ΠΎΠΉ активности Π² ΠΊΠ»Π΅Ρ‚ΠΊΠ°Ρ… Π΄Π΅Ρ‚Ρ€ΡƒΠ·ΠΎΡ€Π°, Π² Ρ‚ΠΎΠΌ числС крСатинфосфокиназы (КЀК), ΡƒΡ‡Π°ΡΡ‚Π²ΡƒΡŽΡ‰Π΅ΠΉ Π² энСргСтичСском обСспСчСнии ΠΈΡ… ΡΠΎΠΊΡ€Π°Ρ‚ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ активности. Π­Ρ„Ρ„Π΅ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ ΠΏΡ€ΠΎΡ‚ΠΈΠ²ΠΎΠΈΡˆΠ΅ΠΌΠΈΡ‡Π΅ΡΠΊΠΎΠΉ Ρ‚Π΅Ρ€Π°ΠΏΠΈΠΈ оказалась сопоставимой с ΠΏΡ€ΠΎΡ‚Π΅ΠΊΡ‚ΠΈΠ²Π½Ρ‹ΠΌ дСйствиСм Ξ±-Π°Π΄Ρ€Π΅Π½ΠΎΠ±Π»ΠΎΠΊΠ°Ρ‚ΠΎΡ€Π° доксазозина, Π° ΠΏΠΎ ряду ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ², Π² частности Π² ΠΎΡ‚Π½ΠΎΡˆΠ΅Π½ΠΈΠΈ КЀК, Π΄Π°ΠΆΠ΅ ΠΏΡ€Π΅Π²Ρ‹ΡˆΠ°Π»Π° Π΅Π³ΠΎ дСйствиС. Π’ клиничСской части исслСдования ΠΏΠΎΠΊΠ°Π·Π°Π½ΠΎ, Ρ‡Ρ‚ΠΎ ΠΏΡ€ΠΎΡ‚ΠΈΠ²ΠΎΠΈΡˆΠ΅ΠΌΠΈΡ‡Π΅ΡΠΊΠ°Ρ тСрапия Π² большСй стСпСни, Ρ‡Π΅ΠΌ тСрапия Ξ±-Π°Π΄Ρ€Π΅Π½ΠΎΠ±Π»ΠΎΠΊΠ°Ρ‚ΠΎΡ€ΠΎΠΌ тамсулозином Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… с ΠžΠ—Πœ способствуСт Π²ΠΎΡΡΡ‚Π°Π½ΠΎΠ²Π»Π΅Π½ΠΈΡŽ ΡΠ°ΠΌΠΎΡΡ‚ΠΎΡΡ‚Π΅Π»ΡŒΠ½ΠΎΠ³ΠΎ мочСиспускания, особСнно Ρƒ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… с большим объСмом остаточной ΠΌΠΎΡ‡ΠΈ ΠΈ Π΄Π»ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹ΠΌ Π°Π½Π°ΠΌΠ½Π΅Π·ΠΎΠΌ. ΠŸΡ€ΠΈ этом ΠΎΠ½Π° ΠΏΡ€Π΅Π΄ΠΎΡ‚Π²Ρ€Π°Ρ‰Π°Π΅Ρ‚ прогрСссированиС поврСТдСния ΠΊΠ»Π΅Ρ‚ΠΎΠΊ Π΄Π΅Ρ‚Ρ€ΡƒΠ·ΠΎΡ€Π°, Π²Ρ‹Π·Π²Π°Π½Π½ΠΎΠ΅ ΠžΠ—Πœ, ΠΈ ΡƒΠΌΠ΅Π½ΡŒΡˆΠ°Π΅Ρ‚ Π΅Π΅ Π½Π΅Π³Π°Ρ‚ΠΈΠ²Π½Ρ‹Π΅ послСдствия Π½Π° Ρ„ΡƒΠ½ΠΊΡ†ΠΈΡŽ ΠΏΠΎΡ‡Π΅ΠΊ Π² большСй стСпСни, Ρ‡Π΅ΠΌ тСрапия тамсулозином. Π—Π°ΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΠ΅. ΠŸΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹Π΅ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ ΡΠ²ΠΈΠ΄Π΅Ρ‚Π΅Π»ΡŒΡΡ‚Π²ΡƒΡŽΡ‚ ΠΎ пСрспСктивности Π΄Π°Π»ΡŒΠ½Π΅ΠΉΡˆΠΈΡ… исслСдований цСлСсообразности использования ΠΏΡ€ΠΎΡ‚ΠΈΠ²ΠΎΠΈΡˆΠ΅ΠΌΠΈΡ‡Π΅ΡΠΊΠΈΡ… ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚ΠΎΠ² для ΡƒΠ»ΡƒΡ‡ΡˆΠ΅Π½ΠΈΡ мочСиспускания Ρƒ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… Π”Π“ΠŸΠ–
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