11 research outputs found

    Utilising an innovative digital software to grade pre-clinical crown preparation exercise

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    Accurate assessment of dental students’ pre-clinical work is the most critical component of the dental education process. Thus, this study came to investigate the effectiveness of using technology in students’ pre-clinical work evaluation; by comparing grades generated from a digital assessment software of a prepared tooth and a traditional visual inspection carried out by four calibrated faculty members

    Mellitin peptide quantification in seasonally collected crude bee venom and its anticancer effects on myelogenous K562 human leukaemia cell line

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    Abstract Background Apitherapy is an emerging field in cancer research, particularly in developing communities. The potency of Melittin (MEL), a major constituent in bee venom is accounted for the cytotoxic capacity against cancer cells. It is postulated that the genotype of bees and the time of venom collection influences its specific activity against certain types of cancer. Method Hereby, Jordanian crude bee venom (JCBV) was collected during different seasons of the year, specifically spring, summer and autumn and investigated for in vitro antitumour effects. Venom collected during springtime comprised the highest quantity of MEL in comparison to venom collected some other time. Springtime-collected JCBV extract and MEL were tested on an immortal myelogenous leukaemia cell line, namely K562 leukemic cells. Treated cells were examined for cell modality via flow cytometry analysis and cell death mediating gene expressions. Results Springtime-collected JCBV extract and MEL showed an IC50 of 3.7 ± 0.37Β ΞΌg/ml and 1.84 ± 0.75Β ΞΌg/ml, respectively. In comparison to JCBV and positive control, MEL-treated cells exhibited late apoptotic death with a moderate cellular arrest at G0/G1 and an increase of cell number at G2/M phase. Expression of NF-ΞΊB/MAPK14 axis was inhibited in MEL and JCBV-treated cells, as well as expression of c-MYC and CDK4. Moreover, marked upregulation in ABL1, JUN and TNF was observed. In conclusion, springtime-collected JCBV showed the highest content of MEL while both JCBV and pure MEL showed apoptotic, necrotic, and cell cycle arrest efficiency against K562 leukemic cells. Conclusion Integration of bee venom in chemotherapy needs more investigation and should be carefully translated into clinical use. During such translation, the correlation of bee genotype, collection time and concentration of MEL in CBV should be profiled

    Π”Π˜ΠΠ“ΠΠžΠ‘Π’Π˜Π§Π•Π‘ΠšΠ˜Π• ΠžΠŸΠ•Π ΠΠ¦Π˜Π˜ Π£ Π‘ΠžΠ›Π¬ΠΠ«Π₯ Π‘ Π’Π˜Π§-Π˜ΠΠ€Π•ΠšΠ¦Π˜Π•Π™ Π‘ ΠŸΠžΠ ΠΠ–Π•ΠΠ˜Π•Πœ ΠžΠ Π“ΠΠΠžΠ’ Π“Π Π£Π”ΠΠžΠ™ ΠšΠ›Π•Π’ΠšΠ˜

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    The current epidemiological situation in the world, characterized by a constant increase in the number of HIV-infected. The steady progression of HIV infection, even in the presence of antiretroviral therapy (ART), is accompanied by the development of opportunistic diseases. Tubercolosis most often affects patients with HIV infection, as the risk of their illness is 20–37 times higher. Basically, radiation tests and immunological tests are used for the diagnostic of tuberculosis. The main diagnostic criterion for establishing the diagnosis of tuberculosis is detection of the causative agent (Mycobacterium tuberculosis by bacteriological or molecular genetic method. Other diseases with respiratory organs, pleura, and hilar lymph nodes may also occur In patients with HIV infection, which requires differential diagnostic, including surgical methods. It is often necessary to resort to a biopsy of pulmonary tissue, pleura, and hilar lymph nodes to establish a diagnosis. Among surgical methods, the use of minimally invasive operations using endoscopic techniques is most justified. Purpose of the study. Study of safety and effectiveness of the use of surgical methods in the diagnostic of chest diseases in patients with HIV infection. Materials and methods. The results of 105 diagnostic thoracic surgeries in patients with HIV infection which were performed in Moscow Research andClinicalCenterfor Tuberculosis Control of Moscow city Department in period between 2014–2017 were studied. All patients underwent diagnostic surgical interventions. Minimally invasive methods were predominantly used. The obtained diagnostic material was subjected to morphological, molecular-genetic and bacteriological analysis. Results of the research. After surgical interventions in patients with HIV infection with pathological changes in chest organs, unclear etiology, diagnosis of tuberculosis was established in 74 (70,5%) patients, nontuberculous etiology of the disease was detected in 31 (29,5%). Differential diagnosis of chest diseases in patients with HIV infection is an integral part of the work of phthisiatrician, pulmonologist and infectiologist. Surgical interventions in HIV-infected patients do not create a significant risk of changes in the immune status, respectively, their performance is independent of the level of lymphocytes and produced even with severe immunodeficiency. The use of surgical methods in diagnostic of chest diseases is safe, effective and does not lead to a significant number of complications and mortality in patients with HIV infection, regardless of the initial immune status. In addition, in number of patients, the operation is not only diagnostic, but also therapeutic, allowing significantly shortening the duration of treatment, avoiding the appointment of trial therapy. The conclusion. In case of tuberculosis, morphological verification of pathological changes in combination with bacteriological and molecular genetic research of the operation material makes it possible to assign an adequate regime of antituberculous chemotherapy in accordance with the sensitivity of the pathogen. The establishment of non-tuberculous etiology of the identified changes, changes the routing of an HIV-infected patient from an anti-tuberculosis institution to a specialized medical organization of the appropriate profile.БоврСмСнная эпидСмиологичСская ситуация Π² ΠΌΠΈΡ€Π΅ характСризуСтся постоянным ΡƒΠ²Π΅Π»ΠΈΡ‡Π΅Π½ΠΈΠ΅ΠΌ числа Π’Π˜Π§-ΠΈΠ½Ρ„ΠΈΡ†ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Ρ… людСй. НСуклонноС прогрСссированиС Π’Π˜Π§-ΠΈΠ½Ρ„Π΅ΠΊΡ†ΠΈΠΈ, Π΄Π°ΠΆΠ΅ Π² присутствии антирСтровирусной Ρ‚Π΅Ρ€Π°ΠΏΠΈΠΈ, сопровоТдаСтся Ρ€Π°Π·Π²ΠΈΡ‚ΠΈΠ΅ΠΌ оппортунистичСских ΠΈ Π²Ρ‚ΠΎΡ€ΠΈΡ‡Π½Ρ‹Ρ… Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠΉ. Π’ΡƒΠ±Π΅Ρ€ΠΊΡƒΠ»Π΅Π· Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ часто ΠΏΠΎΡ€Π°ΠΆΠ°Π΅Ρ‚ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… с Π’Π˜Π§-ΠΈΠ½Ρ„Π΅ΠΊΡ†ΠΈΠ΅ΠΉ, Ρ‚Π°ΠΊ ΠΊΠ°ΠΊ риск заболСвания Ρƒ Π½ΠΈΡ… Π² 20–37 Ρ€Π°Π· Π²Ρ‹ΡˆΠ΅. Π’ основном для диагностики Ρ‚ΡƒΠ±Π΅Ρ€ΠΊΡƒΠ»Π΅Π·Π° ΠΏΡ€ΠΈΠΌΠ΅Π½ΡΡŽΡ‚ΡΡ Π»ΡƒΡ‡Π΅Π²Ρ‹Π΅ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ ΠΈ иммунологичСскиС тСсты. ΠžΡΠ½ΠΎΠ²Π½Ρ‹ΠΌ диагностичСским ΠΊΡ€ΠΈΡ‚Π΅Ρ€ΠΈΠ΅ΠΌ установлСния Π΄ΠΈΠ°Π³Π½ΠΎΠ·Π° Ρ‚ΡƒΠ±Π΅Ρ€ΠΊΡƒΠ»Π΅Π·Π° являСтся выявлСниС возбудитСля (Mycobacterium tuberculosis ΠΈΠ»ΠΈ ΠœΠ‘Π’) бактСриологичСским ΠΈΠ»ΠΈ молСкулярно-гСнСтичСским ΠΌΠ΅Ρ‚ΠΎΠ΄Π°ΠΌΠΈ. Π£ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… с Π’Π˜Π§-ΠΈΠ½Ρ„Π΅ΠΊΡ†ΠΈΠ΅ΠΉ Ρ‚Π°ΠΊΠΆΠ΅ ΠΌΠΎΠ³ΡƒΡ‚ Π²ΡΡ‚Ρ€Π΅Ρ‡Π°Ρ‚ΡŒΡΡ ΠΈΠ½Ρ‹Π΅ заболСвания с ΠΏΠΎΡ€Π°ΠΆΠ΅Π½ΠΈΠ΅ΠΌ ΠΎΡ€Π³Π°Π½ΠΎΠ² дыхания, ΠΏΠ»Π΅Π²Ρ€Ρ‹, Π²Π½ΡƒΡ‚Ρ€ΠΈΠ³Ρ€ΡƒΠ΄Π½Ρ‹Ρ… лимфатичСских ΡƒΠ·Π»ΠΎΠ², Ρ‚Ρ€Π΅Π±ΡƒΡŽΡ‰ΠΈΠ΅ провСдСния Π΄ΠΈΡ„Ρ„Π΅Ρ€Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ диагностики, Π² Ρ‚ΠΎΠΌ числС с ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ хирургичСских ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ². Π”ΠΎΠ²ΠΎΠ»ΡŒΠ½ΠΎ часто для установлСния Π΄ΠΈΠ°Π³Π½ΠΎΠ·Π° приходится ΠΏΡ€ΠΈΠ±Π΅Π³Π°Ρ‚ΡŒ ΠΊ биопсии Π»Π΅Π³ΠΎΡ‡Π½ΠΎΠΉ Ρ‚ΠΊΠ°Π½ΠΈ, ΠΏΠ»Π΅Π²Ρ€Ρ‹, Π²Π½ΡƒΡ‚Ρ€ΠΈΠ³Ρ€ΡƒΠ΄Π½Ρ‹Ρ… Π»ΠΈΠΌΡ„ΠΎΡƒΠ·Π»ΠΎΠ². Π‘Ρ€Π΅Π΄ΠΈ хирургичСских ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ² Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ ΠΎΠΏΡ€Π°Π²Π΄Π°Π½ΠΎ ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΠΌΠ°Π»ΠΎΠΈΠ½Π²Π°Π·ΠΈΠ²Π½Ρ‹Ρ… ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΉ с ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ эндоскопичСской Ρ‚Π΅Ρ…Π½ΠΈΠΊΠΈ. ЦСль исслСдования: ΠΈΠ·ΡƒΡ‡Π΅Π½ΠΈΠ΅ бСзопасности ΠΈ эффСктивности примСнСния хирургичСских ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ² Π² диагностикС Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠΉ ΠΎΡ€Π³Π°Π½ΠΎΠ² Π³Ρ€ΡƒΠ΄Π½ΠΎΠΉ ΠΊΠ»Π΅Ρ‚ΠΊΠΈ Ρƒ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… с Π’Π˜Π§-ΠΈΠ½Ρ„Π΅ΠΊΡ†ΠΈΠ΅ΠΉ. ΠœΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Ρ‹ ΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹. Π˜Π·ΡƒΡ‡Π΅Π½Ρ‹ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ 105 диагностичСских Ρ‚ΠΎΡ€Π°ΠΊΠ°Π»ΡŒΠ½Ρ‹Ρ… ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΉ Ρƒ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… с Π’Π˜Π§-ΠΈΠ½Ρ„Π΅ΠΊΡ†ΠΈΠ΅ΠΉ, Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½Π½Ρ‹Ρ… Π² Π“Π‘Π£Π— «МНПЦ Π±ΠΎΡ€ΡŒΠ±Ρ‹ с Ρ‚ΡƒΠ±Π΅Ρ€ΠΊΡƒΠ»Π΅Π·ΠΎΠΌ Π”Π—ΠœΒ» Π·Π° ΠΏΠ΅Ρ€ΠΈΠΎΠ΄ 2014–2017 Π³ΠΎΠ΄ΠΎΠ². ВсСм Π±ΠΎΠ»ΡŒΠ½Ρ‹ΠΌ Π±Ρ‹Π»ΠΈ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½Ρ‹ диагностичСскиС хирургичСскиС Π²ΠΌΠ΅ΡˆΠ°Ρ‚Π΅Π»ΡŒΡΡ‚Π²Π°; прСимущСствСнно ΠΏΡ€ΠΈΠΌΠ΅Π½ΡΠ»ΠΈΡΡŒ ΠΌΠ°Π»ΠΎΠΈΠ½Π²Π°Π·ΠΈΠ²Π½Ρ‹Π΅ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹. ΠŸΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹ΠΉ диагностичСский ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π» Π±Ρ‹Π» ΠΏΠΎΠ΄Π²Π΅Ρ€Π³Π½ΡƒΡ‚ морфологичСскому, молСкулярно-гСнСтичСскому ΠΈ бактСриологичСскому ΠΌΠ΅Ρ‚ΠΎΠ΄Π°ΠΌ Π°Π½Π°Π»ΠΈΠ·Π°. Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ исслСдования. ПослС провСдСния хирургичСских Π²ΠΌΠ΅ΡˆΠ°Ρ‚Π΅Π»ΡŒΡΡ‚Π² Ρƒ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… с Π’Π˜Π§-ΠΈΠ½Ρ„Π΅ΠΊΡ†ΠΈΠ΅ΠΉ с измСнСниями Π² Π³Ρ€ΡƒΠ΄Π½ΠΎΠΉ ΠΊΠ»Π΅Ρ‚ΠΊΠ΅ нСясной этиологии Π΄ΠΈΠ°Π³Π½ΠΎΠ· Ρ‚ΡƒΠ±Π΅Ρ€ΠΊΡƒΠ»Π΅Π·Π° Π±Ρ‹Π» установлСн Ρƒ 74 (70,5%) Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ…, нСтубСркулСзная этиология заболСвания выявлСна Ρƒ 31 (29,5%). Π”ΠΈΡ„Ρ„Π΅Ρ€Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½Π°Ρ диагностика Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠΉ ΠΎΡ€Π³Π°Π½ΠΎΠ² Π³Ρ€ΡƒΠ΄Π½ΠΎΠΉ ΠΊΠ»Π΅Ρ‚ΠΊΠΈ Ρƒ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… с Π’Π˜Π§-ΠΈΠ½Ρ„Π΅ΠΊΡ†ΠΈΠ΅ΠΉ являСтся Π½Π΅ΠΎΡ‚ΡŠΠ΅ΠΌΠ»Π΅ΠΌΠΎΠΉ Ρ‡Π°ΡΡ‚ΡŒΡŽ Ρ€Π°Π±ΠΎΡ‚Ρ‹ Ρ„Ρ‚ΠΈΠ·ΠΈΠ°Ρ‚Ρ€Π°, ΠΏΡƒΠ»ΡŒΠΌΠΎΠ½ΠΎΠ»ΠΎΠ³Π° ΠΈ инфСкциониста. ΠžΠΏΠ΅Ρ€Π°Ρ‚ΠΈΠ²Π½Ρ‹Π΅ Π²ΠΌΠ΅ΡˆΠ°Ρ‚Π΅Π»ΡŒΡΡ‚Π²Π° Ρƒ Π’Π˜Π§-ΠΈΠ½Ρ„ΠΈΡ†ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Ρ… ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² Π½Π΅ ΡΠΎΠ·Π΄Π°ΡŽΡ‚ сущСствСнного риска ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠΉ ΠΈΠΌΠΌΡƒΠ½Π½ΠΎΠ³ΠΎ статуса, соотвСтствСнно, ΠΈΡ… Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΈΠ΅ Π½Π΅ зависит ΠΎΡ‚ уровня Π»ΠΈΠΌΡ„ΠΎΡ†ΠΈΡ‚ΠΎΠ² ΠΈ производится Π΄Π°ΠΆΠ΅ ΠΏΡ€ΠΈ Π²Ρ‹Ρ€Π°ΠΆΠ΅Π½Π½ΠΎΠΌ ΠΈΠΌΠΌΡƒΠ½ΠΎΠ΄Π΅Ρ„ΠΈΡ†ΠΈΡ‚Π΅. ИспользованиС хирургичСских ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ² Π² диагностикС Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠΉ ΠΎΡ€Π³Π°Π½ΠΎΠ² Π³Ρ€ΡƒΠ΄Π½ΠΎΠΉ ΠΊΠ»Π΅Ρ‚ΠΊΠΈ являСтся бСзопасным ΠΈ эффСктивным ΠΈ Π½Π΅ ΠΏΡ€ΠΈΠ²ΠΎΠ΄ΠΈΡ‚ ΠΊ Π·Π½Π°Ρ‡ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΌΡƒ числу ослоТнСний ΠΈ Π»Π΅Ρ‚Π°Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ срСди Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… с Π’Π˜Π§-ΠΈΠ½Ρ„Π΅ΠΊΡ†ΠΈΠ΅ΠΉ Π²Π½Π΅ зависимости ΠΎΡ‚ исходного ΠΈΠΌΠΌΡƒΠ½Π½ΠΎΠ³ΠΎ статуса. ΠšΡ€ΠΎΠΌΠ΅ Ρ‚ΠΎΠ³ΠΎ, Ρƒ ряда ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² опСрация носит Π½Π΅ Ρ‚ΠΎΠ»ΡŒΠΊΠΎ диагностичСский, Π½ΠΎ ΠΈ Π»Π΅Ρ‡Π΅Π±Π½Ρ‹ΠΉ Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€, позволяя Π·Π½Π°Ρ‡ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎ ΡΠΎΠΊΡ€Π°Ρ‚ΠΈΡ‚ΡŒ сроки лСчСния, ΠΈΠ·Π±Π΅ΠΆΠ°Ρ‚ΡŒ назначСния ΠΏΡ€ΠΎΠ±Π½ΠΎΠΉ Ρ‚Π΅Ρ€Π°ΠΏΠΈΠΈ. Π—Π°ΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΠ΅. ΠŸΡ€ΠΈ Ρ‚ΡƒΠ±Π΅Ρ€ΠΊΡƒΠ»Π΅Π·Π΅ морфологичСская вСрификация патологичСских ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠΉ Π² сочСтании с бактСриологичСским ΠΈ молСкулярно-гСнСтичСским ΠΌΠ΅Ρ‚ΠΎΠ΄Π°ΠΌΠΈ исслСдования ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Π° позволяСт Π½Π°Π·Π½Π°Ρ‡ΠΈΡ‚ΡŒ Π°Π΄Π΅ΠΊΠ²Π°Ρ‚Π½Ρ‹ΠΉ Ρ€Π΅ΠΆΠΈΠΌ ΠΏΡ€ΠΎΡ‚ΠΈΠ²ΠΎΡ‚ΡƒΠ±Π΅Ρ€ΠΊΡƒΠ»Π΅Π·Π½ΠΎΠΉ Ρ…ΠΈΠΌΠΈΠΎΡ‚Π΅Ρ€Π°ΠΏΠΈΠΈ Π² соотвСтствии с Ρ‡ΡƒΠ²ΡΡ‚Π²ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΡŒΡŽ возбудитСля. УстановлСниС Π½Π΅Ρ‚ΡƒΠ±Π΅Ρ€ΠΊΡƒΠ»Π΅Π·Π½ΠΎΠΉ этиологии выявлСнных ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠΉ мСняСт ΠΌΠ°Ρ€ΡˆΡ€ΡƒΡ‚ΠΈΠ·Π°Ρ†ΠΈΡŽ Π’Π˜Π§-ΠΈΠ½Ρ„ΠΈΡ†ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚Π° ΠΈΠ· ΠΏΡ€ΠΎΡ‚ΠΈΠ²ΠΎΡ‚ΡƒΠ±Π΅Ρ€ΠΊΡƒΠ»Π΅Π·Π½ΠΎΠ³ΠΎ учрСТдСния Π² ΡΠΏΠ΅Ρ†ΠΈΠ°Π»ΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Π½Π½ΡƒΡŽ ΠΌΠ΅Π΄ΠΈΡ†ΠΈΠ½ΡΠΊΡƒΡŽ ΠΎΡ€Π³Π°Π½ΠΈΠ·Π°Ρ†ΠΈΡŽ ΡΠΎΠΎΡ‚Π²Π΅Ρ‚ΡΡ‚Π²ΡƒΡŽΡ‰Π΅Π³ΠΎ профиля.</p
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