Reference stars compiled catalogue around extragalactic radio sources. Reduction techniques and the first results

Some differential reference stars catalogues around extragalactic radio sources obtained from photographic and CCD-observations at different observatories are considered. Compiled catalogue of star positions in fields of 30 ×30 is intended for reduction of ERS optical observations using the telescopes equipped with CCD-cameras. Photographic observations of the fields around 74 ERS were made at the Pulkovo Observatory, around 115 ERS – at the AO KNU, around 188 ERS – at the AIRA in Bucharest. The 208 fields around ERS at NAO using the telescope equipped with a CCD-camera were obtained. The first results of the creation of uniform compiled catalogue are given. Astrometric positions for stars brighter than 16 magnitude in more than 20 fields around ERS are presented. A comparison of our results with those of other authors is made

Monocyte chemoattractant protein-1 and matrix metalloproteinase-9 in patients with type 2 cardiorenal syndrome with chronic heart failure and diabetes type 2 depending on the rate of glomerular filtration

Aim. The purpose of this study was to analyze changes in MCP-1 as a marker of fibrosis and MMP-9 as an indicator of fibrolysis in patients with CRS and with a background of CHF and type 2 diabetes, depending on the level of glomerular filtration rate. Methods and results. 80 patients with CHF FC II-III with coronary heart disease (CHD) and who were treated in the cardiology department of the Kharkiv City Clinical Hospital № 27 were examined (mean age 65,13±8,66 years). The first group included 46 patients with CHF diagnosed with type 2 diabetes, the second - 34 CHF patients without diabetes. The study excluded patients with acute coronary syndrome and acute myocardial infarction. MCP-1 was determined by ELISA using a reagent kit «HUMAN MCP-1» (eBiocience,Austria). MMP-9 was determined by ELISA using a reagent kit «HUMAN MMP-9» (eBiocience,Austria). Conclusion. Progression in patients with type 2 CRS on a background of heart failure and type 2 diabetes associated with a proportional increase fibrosis marker MCP-1, indicating its involvement in tubulointerstitial renal disease. High levels of MMP-9 in patients with type 2 CRS on a background of heart failure and type 2 diabetes in the presence of GFR> 60 mL/min were detected. Reduced GFR <60 mL/min. was not accompanied by a further increase in the activity of an antifibrotic factor. MCP-1 hyperactivity resulted in a cascade of reactions of the progression of interstitial sclerosis

Astrometric measurement and reduction of Pulkovo photographic observations of the main Saturnian satellites from 1972 to 2007 in the

Context. We present a remeasurement of old photographic plates, providing important raw data for dynamical studies of the Saturnian satellite system. The unprecedentedly accurate realization of the Gaia reference frame allows us to make a precise calibration of digitized astronegatives of the Saturnian satellite images. Aims. We reprocessed 357 astronegatives taken with the 26-inch refractor and the normal astrograph of the Pulkovo Observatory between 1972 and 2007 to obtain the positions of the main Saturnian moons in the second Gaia data release (Gaia DR2) system. Methods. Photographic plates were digitized with the Pulkovo Mobile Digitizing Device scanner. The New Astrometric Reduction of Old Observations digitizer at the Paris Observatory was used to calibrate the scanned images. Satellite image centering and astrometric reduction were performed. Results. In total, 6487 positions (equatorial coordinates) have been determined with an accuracy of 50 mas. This is confirmed by a comparison of our data with modern ephemerides. The verification of the results was performed using data from past close approaches by Saturnian satellites to Gaia reference stars, showing the adequacy of the current residual analysis. A joint review of the Pulkovo and the United States Naval Observatory intersatellite positions allows us to conclude about the existence of faint systematic effects in the satellite theories of motions at the 10 mas level