Olga V. Kalashnikova

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OBJECTIVES The purpose of our study was to detect early clinical and laboratory signs that help to discriminate macrophage activation syndrome (MAS) from active systemic juvenile idiopathic arthritis (SJIA) without MAS. METHODS Our retrospective study was based on reviewing the medical charts of the children admitted to the rheumatology department with(More)
BACKGROUND Systemic juvenile idiopathic arthritis (SoJIA) is the most striking form of juvenile idiopathic arthritis. The aim of our study was to evaluate the clinical responses and outcomes of children with SoJIA to IL-6 blockade using two different tocilizumab (TCZ) treatment protocols designed for milder and more severe SoJIA patient groups, and evaluate(More)
OBJECTIVES To re-evaluate the ability of methotrexate (MTX) to prevent the onset of uveitis in Russian children with juvenile idiopathic arthritis (JIA). METHODS The clinical charts for all consecutive patients who received a stable management for at least 2 years with or without MTX were reviewed. Patients who were given systemic medications other than(More)
An anomalously high chlorophyll-a (Chl-a) event (>2 mg/m3) during June 2015 in the South Central Red Sea (17.5◦ to 22◦N, 37◦ to 42◦E) was observed using Moderate Resolution Imaging Spectroradiometer (MODIS) data from the Terra and Aqua satellite platforms. This differs from the low Chl-a values (<0.5 mg/m3) usually encountered over the same region during(More)
1. INTRODUCTION The Multi-angle Imaging SpectroRadiometer (MISR) instrument was launched into polar Earth orbit aboard NASA's Terra satellite on December 18, 1999. MISR contains 9 pushbroom cameras pointed at nadir and along-track view angles of 70.5º, 60º, 46.1º, 26.1º forward and backward of nadir, each with spectral bands at 446, 558, 672, and 866 nm.(More)
During the twentieth century, the southeast United States cooled, in direct contrast with widespread global and hemispheric warming. While the existing literature is divided on the cause of this so-called “warming hole,” anthropogenic aerosols have been hypothesized as playing a primary role in its occurrence. In this study, unique satellite-based(More)
We carry out an investigation of the influence of particle alignment on the scattering properties of mineral dust layers. Our modelling indicates that in addition to modifying optical thickness, the alignment can significantly alter the scattering properties, including polarization. Influence of the alignment on remote sensing retrievals is also examined,(More)
We use CALIOP nighttime measurements of lidar backscatter, color and depolarization ratios, as well as particulate retrievals during the summer of 2007 to study transatlantic dust properties downwind of Saharan sources, and to examine the influence of nearby clouds on dust. Our analysis suggests that (1) under clear skies, while lidar backscatter and color(More)
BACKGROUND/PURPOSE The CCR5 protein is a chemokine receptor, and is known to be expressed on T cells, macrophages, dendritic and microglia cells. It is believed that different prevalence of HLA and CCR5- delta32-a 32 base pair deletion in the coding region-in various ethnic groups is associated with the severity and prevalence of chemokine-mediated(More)