58 research outputs found

    Independent Media in a Small Town 2011-2012

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    This study is part of a larger project on the role of local (independent) press in the development of civil society in small cities. In 2007, a series of research was done in the towns of Dobryanka, Tchaikovsky, Zheleznogorsk, Serpukhov, Kachkanar and Kudymkar.As part of this first phase of our research project, we studied factors and functional conditions that drive the need for the existence of independent media and ensure their independence. Field work was mainly carried out in 2011and completed at the end of 2012. In 2011, the survey covered the towns of Berdsk, Novoaltaisk, Sarapul, Serov, Dubna and Zhukovsky. In 2012, further interviews were conducted in Zhukovsky with representatives of different social groups and the editorial staff of the newspaper "Zhukovskiye news" .For several reasons, this report is completed at the end of 2012. This time was full of political events and changes in the political climate of the country. Therefore, part of the observations of this work have lost their political relevance, but retain sociological interest

    Pathology of porcine peripheral white blood cells during infection with African swine fever virus

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    <p>Abstract</p> <p>Background</p> <p>African swine fever virus (ASFV) is the causative agent of African swine fever (ASF) that is the significant disease of domestic pigs. Several studies showed that ASFV can influence on porcine blood cells in vitro. Thus, we asked ourselves whether ASFV infection results in changes in porcine blood cells in vivo. A series of experiments were performed in order to investigate the effects of ASFV infection on porcine peripheral white blood cells. Nine pigs were inoculated by intramuscular injection with 10<sup>4 </sup>50% hemadsorbing doses of virus (genotype II) distributed in Armenia and Georgia. The total number of fifteen cell types was calculated during experimental infection.</p> <p>Results</p> <p>Although band-to-segmented neutrophils ratio became much higher (3.5) in infected pigs than in control group (0.3), marked neutropenia and lymphopenia were detected from 2 to 3 days post-infection. In addition to band neutrophils, the high number of other immature white blood cells, such as metamyelocytes, was observed during the course of infection. From the beginning of infection, atypical lymphocytes, with altered nuclear shape, arose and became 15% of total cells in the final phase of infection. Image scanning cytometry revealed hyperdiploid DNA content in atypical lymphocytes only from 5 days post-infection, indicating that DNA synthesis in pathological lymphocytes occurred in the later stages of infection.</p> <p>Conclusion</p> <p>From this study, it can be concluded that ASFV infection leads to serious changes in composition of white blood cells. Particularly, acute ASFV infection in vivo is accompanied with the emergence of immature cells and atypical lymphocytes in the host blood. The mechanisms underlying atypical cell formation remain to be elucidated.</p

    A Mitosis Block Links Active Cell Cycle with Human Epidermal Differentiation and Results in Endoreplication

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    How human self-renewal tissues co-ordinate proliferation with differentiation is unclear. Human epidermis undergoes continuous cell growth and differentiation and is permanently exposed to mutagenic hazard. Keratinocytes are thought to arrest cell growth and cell cycle prior to terminal differentiation. However, a growing body of evidence does not satisfy this model. For instance, it does not explain how skin maintains tissue structure in hyperproliferative benign lesions. We have developed and applied novel cell cycle techniques to human skin in situ and determined the dynamics of key cell cycle regulators of DNA replication or mitosis, such as cyclins E, A and B, or members of the anaphase promoting complex pathway: cdc14A, Ndc80/Hec1 and Aurora kinase B. The results show that actively cycling keratinocytes initiate terminal differentiation, arrest in mitosis, continue DNA replication in a special G2/M state, and become polyploid by mitotic slippage. They unambiguously demonstrate that cell cycle progression coexists with terminal differentiation, thus explaining how differentiating cells increase in size. Epidermal differentiating cells arrest in mitosis and a genotoxic-induced mitosis block rapidly pushes epidermal basal cells into differentiation and polyploidy. These observations unravel a novel mitosis-differentiation link that provides new insight into skin homeostasis and cancer. It might constitute a self-defence mechanism against oncogenic alterations such as Myc deregulation

    Management of Recurrent Rectourethral Fistula by York Mason Posterior Transrectal Transsphincteric Approach

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    Rectourethral fistula (RUF) may develop after ureterovesical and rectal intervention or radiation therapy (RT) rarely, but it is associated with significant morbidity and mortality. The patient will typically present with pneumaturia, faecaluria, and urinary drainage from the rectum. Diagnosis can be easily done with digital rectal examination, cystography, and urethrocystoscopy. Conservative supportive management of RUF does not appear to be successful in most patients, and management with surgical intervention remains the best treatment option. Several surgical techniques have been described including transabdominal, transanal, transperineal, combined abdominoperineal, anterior and posterior transsphincteric, transsacral, laparoscopic, robotic, and endoscopic minimally invasive approaches. There have been very few data about treatment of recurrent RUF. We would like to report the management of recurrent RUF following transurethral resection of prostate and RT for prostate carcinoma in an immunosuppressed, 75-year-old patient by York Mason posterior transrectal transsphincteric approach
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