Publications by authors named "I A Korotkevich"

Aim: Because of the COVID-19 pandemic, many support programs for tuberculosis (TB) patients have been discontinued and TB mass screening activities decreased worldwide, resulting in a decrease in new case detection and an increase in TB deaths (WHO, WHO global lists of high burden countries for TB, multidrug/rifampicin-resistant TB (MDR/RR-TB) and TB/HIV, 2021-2025, 2021). The study aimed to assess changes in epidemiological indicators of tuberculosis in the Russian Federation and to simulate these indicators in the post-COVID-19 period.

Materials And Methods: The main epidemiological indicators of tuberculosis were analyzed with the use of government statistical data for the period from 2009 to 2021.

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Purpose Of The Study: To analyze a correlation between sino-atrial node automatic activity and atrio-ventricular conductivity in patients with lower acute myocardial infarction (AMI) and atrio-ventricular blockade II-III (AVB) during infusion therapy.

Materials And Methods: Retrospective analysis of care for patients with AMI and AVB was carried out. Infusion therapy effects were studied in 12 patients with right coronary artery disease and AVB.

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Investigations of microbial contamination and species composition of the Enterobacteriaceae family in fresh vegetables and lettuce has been conducted. The objects of study were new types of fresh ready-to-eat vegetable foods - salads, sliced vegetables and mixtures thereof, sampled at the main stages of production, including washing, antimicrobial treatment with sodium hypochlorite, and packaging in the film under vacuum. Quantitative analysis of Enterobacteriaceae levels in fresh and packaged vegetables and salads showed that their part in the total amount of microbial contaminants is large enough.

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The improvement of the Fusarium DNA extraction method has been undertaken in order to reduce the error of PCR analysis for detection of toxigenic Fusarium species, including those contained in the grain in the uncultureted state, directly in the grain. The efficiency of Fusarium DNA extraction methods (nucleotides sorption and CTAB method) has been compared. The efficiency of CTAB method combined with 10-fold weight increase of milled grain sample has been demonstrated.

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Currently contamination of food grains with Fusarium spp. is determined by conventional mycological methods and can last up to 30-40 days. The method specificity is highly dependent on the subjective evaluation of the researchers.

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