Исходы новой коронавирусной инфекции COVID-19 у 68 пациентов с воспалительными заболеваниями кишечника

Background. COVID-19 is an infectious respiratory syndrome with a wide range of manifestations and outcomes. Patients with inflammatory bowel disease (IBD) generally have a higher risk of infection, especially if they receive immunosuppressive therapy. Aim to describe the manifestations of COVID-19 in patients with IBD and to determine the risk factors for severe COVID-19. Methods. The analysis included 68 patients with an established diagnosis of Crohns disease (CD) or ulcerative colitis and a confirmed new coronavirus infection. The diagnosis of coronavirus infection was established when SARS-CoV-2 was detected by PCR using nasopharyngeal smears, and computer tomography (CT) of the chest revealed inflammatory changes characteristic of coronavirus lung damage or high IgG and IgM titers based on the results of immunological blood analysis. Results. 68 patients with IBD and COVID-19 were observed in the Department of IBD, including 27 (39.7%) patients with CD, 41 (60.3%) patients with UC. Among patients diagnosed with pneumonia, 100 % of patients received therapy with thiopurines and infliximab. 8 (11.8%) patients were diagnosed with COVID-19 during hospitalization for a severe IBD attack. There was no statistically significant difference between UC and CD patients in terms of disease activity (p = 0.13) during the period of coronavirus infection. In 37 patients (26 UC, 11 BC) with pneumonia (100%), there was an exacerbation of IBD. Statistical significance was found between the development of more severe lung damage (CT 34) and IBD activity at the time of diagnosis of COVID-19 (p 0.001), the presence of comorbidities (p 0.001) and taking GCS (p 0.001) at the time of detection of COVID-19. However, the use of biological and immunosuppressive therapy was not associated with a higher risk of severe lung damage and the need for a ventilator. It was shown that the age of patients over 65 years was statistically correlated with the need for a ventilator (p = 0.02). Conclusion. The exacerbation of the disease, especially in elderly patients with comorbidities, the use of glucocorticosteroids was associated with negative consequences of COVID-19, while biological and immunosuppressant drugs used for the treatment of IBD did not have such a negative effect.Обоснование. COVID-19 это инфекционный респираторный синдром с широким спектром проявлений и исходов. Пациенты с воспалительными заболеваниями кишечника (ВЗК) имеют больший риск инфицирования SARS-CoV-2, в особенности если они получают иммуносупрессивную терапию. Цель исследования описать проявления COVID-19 у пациентов с ВЗК и определить факторы риска тяжелого течения COVID-19. Методы. В анализ были включены 68 пациентов c установленным диагнозом болезни Крона (БК) или язвенного колита (ЯК) и подтвержденной новой коронавирусной инфекцией. Диагноз коронавирусной инфекции устанавливался при выявлении SARS-CoV-2 методом ПЦР назофарингеальных мазков, выявлении при компьютерной томографии (КТ) органов грудной клетки воспалительных изменений, характерных для коронавирусного поражения легких, или высокого титра IgG и IgM по результатам иммунологического анализа крови. Результаты. 68 пациентов с ВЗК и COVID-19 наблюдались в отделении лечения Московского клинического научно-практического центра имени А.С. Логинова, из них 27 (39,7%) пациентов с БК, 41 (60,3%) пациент с ЯК. Не было выявлено статистически значимого различия между пациентами ЯК и БК в отношении активности заболевания (p = 0,13) в период коронавирусной инфекции. У 37 пациентов (26 с ЯК, 11 с БК) с пневмонией (100%) имелось обострение ВЗК. У 8 (11,8%) пациентов был диагностирован COVID-19 во время госпитализации по поводу тяжелой атаки ВЗК. Была выявлена статистическая значимость между развитием более тяжелого поражения легких (КТ 34) и активностью ВЗК на момент диагностирования COVID-19 (p 0,001), наличием сопутствующих заболеваний (p 0,001) и приемом ГКС (p 0,001) на момент выявления COVID-19. При этом применение биологической и иммуносупрессивной терапии не было связано с более высоким риском тяжелого поражения легких и потребностью в ИВЛ. Было показано, что возраст пациентов более 65 лет статистически коррелировал с потребностью в ИВЛ (p = 0,02). Заключение. Обострение заболевания, в особенности у пожилых пациентов с сопутствующей патологией, и прием глюкокортикостероидов имели зависимость с негативными последствиями COVID-19, в то время как препараты биологической и иммуносупрессорной терапии, применяемые для лечения ВЗК, не оказывали такого негативного влияния

Effect of event selection on jetlike correlation measurement in d+Au collisions at sNN=200 GeV

AbstractDihadron correlations are analyzed in sNN=200 GeV d+Au collisions classified by forward charged particle multiplicity and zero-degree neutral energy in the Au-beam direction. It is found that the jetlike correlated yield increases with the event multiplicity. After taking into account this dependence, the non-jet contribution on the away side is minimal, leaving little room for a back-to-back ridge in these collisions

J/ψ polarization in p+p collisions at s=200 GeV in STAR

AbstractWe report on a polarization measurement of inclusive J/ψ mesons in the di-electron decay channel at mid-rapidity at 2<pT<6 GeV/c in p+p collisions at s=200 GeV. Data were taken with the STAR detector at RHIC. The J/ψ polarization measurement should help to distinguish between different models of the J/ψ production mechanism since they predict different pT dependences of the J/ψ polarization. In this analysis, J/ψ polarization is studied in the helicity frame. The polarization parameter λθ measured at RHIC becomes smaller towards high pT, indicating more longitudinal J/ψ polarization as pT increases. The result is compared with predictions of presently available models

Beam-energy Dependence Of Charge Balance Functions From Au + Au Collisions At Energies Available At The Bnl Relativistic Heavy Ion Collider

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Balance functions have been measured in terms of relative pseudorapidity (Δη) for charged particle pairs at the BNL Relativistic Heavy Ion Collider from Au + Au collisions at sNN=7.7GeV to 200 GeV using the STAR detector. These results are compared with balance functions measured at the CERN Large Hadron Collider from Pb + Pb collisions at sNN=2.76TeV by the ALICE Collaboration. The width of the balance function decreases as the collisions become more central and as the beam energy is increased. In contrast, the widths of the balance functions calculated using shuffled events show little dependence on centrality or beam energy and are larger than the observed widths. Balance function widths calculated using events generated by UrQMD are wider than the measured widths in central collisions and show little centrality dependence. The measured widths of the balance functions in central collisions are consistent with the delayed hadronization of a deconfined quark gluon plasma (QGP). The narrowing of the balance function in central collisions at sNN=7.7 GeV implies that a QGP is still being created at this relatively low energy. © 2016 American Physical Society.942CNPq, Conselho Nacional de Desenvolvimento Científico e TecnológicoMinistry of Education and Science of the Russian FederationMOE, Ministry of Education of the People's Republic of ChinaMOST, Ministry of Science and Technology of the People's Republic of ChinaNRF-2012004024, National Research FoundationNSF, National Stroke FoundationConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq

Long-range Angular Correlations On The Near And Away Side In P-pb Collisions At √snn=5.02 Tev

7191/Mar294

J/ψ Production At Low Pt In Au+au And Cu+cu Collisions At Snn =200 Gev With The Star Detector

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Dielectron Azimuthal Anisotropy At Mid-rapidity In Au+au Collisions At Snn =200 Gev

We report on the first measurement of the azimuthal anisotropy (v2) of dielectrons (e+e- pairs) at mid-rapidity from sNN=200 GeV Au+Au collisions with the STAR detector at the Relativistic Heavy Ion Collider (RHIC), presented as a function of transverse momentum (pT) for different invariant-mass regions. In the mass region Mee<1.1 GeV/c2 the dielectron v2 measurements are found to be consistent with expectations from π0,η,ω, and φ decay contributions. In the mass region 1.1<Mee<2.9GeV/c2, the measured dielectron v2 is consistent, within experimental uncertainties, with that from the cc¯ contributions.906Adams, J., (2005) Nucl. Phys. A, 757, p. 102. , NUPABL 0375-9474Arsene, I., (2005) Nucl. Phys. A, 757, p. 1. , NUPABL 0375-9474Adcox, K., (2005) Nucl. Phys. A, 757, p. 184. , NUPABL 0375-9474Back, B.B., (2005) Nucl. Phys. A, 757, p. 28. , NUPABL 0375-9474Rapp, R., Wambach, J., (2002) Adv. Nucl. Phys., 25, p. 1. , 0065-2970David, G., Rapp, R., Xu, Z., (2008) Phys. 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Beam-energy Dependence Of Charge Separation Along The Magnetic Field In Au+au Collisions At Rhic

Local parity-odd domains are theorized to form inside a quark-gluon plasma which has been produced in high-energy heavy-ion collisions. The local parity-odd domains manifest themselves as charge separation along the magnetic field axis via the chiral magnetic effect. The experimental observation of charge separation has previously been reported for heavy-ion collisions at the top RHIC energies. In this Letter, we present the results of the beam-energy dependence of the charge correlations in Au+Au collisions at midrapidity for center-of-mass energies of 7.7, 11.5, 19.6, 27, 39, and 62.4 GeV from the STAR experiment. After background subtraction, the signal gradually reduces with decreased beam energy and tends to vanish by 7.7 GeV. 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ЭКОЛОГИЧЕСКИЙ СЛЕД ГОРОДОВ

L'essor urbain est concomitant avec « la grande accélération » de la consommation des ressources à l'échelle planétaire. Nous pouvons nous interroger sur la parenté de ces phénomènes pour tenter de nous forger une opinion sur le devenir des villes : les conditions nécessaires au maintien de la formidable prééminence urbaine seront-elles garanties au cours des décennies à venir ? Les mégalopoles multimillionnaires capables de gérer durablement les ressources représentent-elles un avenir plausible ? «J'aurais tendance à penser que c'est l'exode rural vers les centres urbains denses et décarbonés qui constitue aujourd'hui la vraie révolution écologique. » Cette allocution récente de l'écrivain Aurélien Bellanger sur France Culture illustre une idée largement répandue au sein de la sphère politique et médiatique : les grandes villes permettraient la rationalisation de l'usage des ressources (logements collectifs) et la mutualisation des services (mobilité, équipements publics). Ainsi, la concentration de la population au sein des villes constituerait le mode d'organisation du territoire écologiquement le plus soutenable