Publications by authors named "M I Popkova"

Unlabelled: was to develop an experimental version of a DNA microarray for parallel detection of community-acquired pneumonia bacterial pathogens.

Materials And Methods: We studied the samples of the pharyngeal mucosa smears taken from children aged 1-15 years with X-ray confirmed pneumonia. The selection of DNA probes for specific detection of community-acquired pneumonia pathogens (, , , , and ) and development of the microarray design were carried out using the disprose program.

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Climate changes influence seasonal tree-ring formation. The result is a specific cell structure dependent on internal processes and external environmental factors. One way to investigate and analyze these relationships is to apply diverse simulation models of tree-ring growth.

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Article Synopsis
  • Animal models are useful for testing new cardiac devices and studying heart rhythm diseases and related heart failure.
  • A new small mammal model was developed using New Zealand white rabbits where a pacing lead was successfully implanted in the right ventricular apex for research purposes.
  • The study demonstrated stable pacing and potential for chronic use, making it a valuable tool for understanding arrhythmia-induced heart failure.
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Article Synopsis
  • The study examined the impact of acute cardiac failure (CF) on heart rate variability (HRV) using 24 female pigs subjected to global myocardial hypoxia.
  • The results indicated a significant drop in cardiac output and left ventricular ejection fraction, along with an increased heart rate after severe CF was induced.
  • Key findings showed a marked reduction in HRV measurements across various analytical methods, highlighting the adverse effects of acute CF on autonomic nervous system function.
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Venoarterial extracorporeal membrane oxygenation (VA-ECMO) is widely used in the treatment of patients experiencing cardiogenic shock (CS). However, increased VA-ECMO blood flow (EBF) may significantly impair left ventricular (LV) performance. The objective of the present study was to assess the effect of VA-ECMO on LV function in acute CS with concomitant severe aortic stenosis (AS) or mitral regurgitation (MR) in a porcine model.

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