Ramirezfreedman8461

odstream infection the BHM (liquid and agar) are able to create the optimal conditions for the increase of the wide range pathogen growth.Were studied the genes encoding the virulence factors of 221 strains E. coli O6H1 (194) and E. coli O25H4 (27), isolated in 2014-2018 from stool samples of children and adults examined according to epidemic indications. Molecular methods included PCR with hybridization-fluorescence and electrophoresis detection of amplified products. The strains did not have virulence genes for diarrheagenic E. coli (DEC) pathogroups EPEC, ETEC, EIEC, EHEC, EAggEC, and belonged to the phylogenetic group B2. They contained from four to eight genes encoding virulence factors of ExPEC E. coli O6H1 - pap (68,6%), sfa (87,6%), fimH (96,4%), hly (62,4%), cnf (74,7%), iutA (97,9%), fyuA (95,9%), chu (100%); E. coli O25H4 - pap (66,7%), afa (22,2%), fimH (100%), hly (44,4%), cnf (44,4%), iutA (100%) , fyuA (100%), chu (100%). The antimicrobial susceptibility testing to 6 classes of antimicrobials (beta-lactams, fluoroquinolones, aminoglycosides, nitrofurantoin, sulfanilamide, trimethoprim / sulfamethoxazole) according the EUCAST. 60,3% of E. coli O6H1 were sensitive to antibiotics, E. coli O25H4 remained sensitive to carbapenems and nitrofurans. Extended-spectrum cephalosporins resistance was due to the production ESBL (CTX-M). The 57,1% resistant strains of E. coli O6H1 and 100% of E. coli O25H4 strains belonged to the MDR phenotype. The XDR phenotype had one in five MDR strains of E. coli O6H1 and E. coli O25H4. All strains of E. coli O25H4 belonged to ST131. Given the important role of E. coli in human pathology, detection of virulence genes should be performed to confirm the etiological significance of the isolated strain.A new original domestic set of reagents has been developed for the determination of class G immunoglobulins to individual human herpes virus antigens of type 7 by the method of immune blotting in the "Western-blot" format. Preliminary clinical trials were conducted using 134 serums of healthy children aged 1-16 years who underwent diagnostic testing. Stud y of diagnostic efficiency ofthe new kit showed high sensitivity, comparable to the sensitivity of the reaction indirect immunofluorescence and high specificity, which is manifested in the absence of false positive results when testing samples containing immunoglobulin G to herpes virus 6 type.The serum of 1006 children aged 0-18 years and elderly people aged 60 to 90 years and older for the presence of specific class G immunoglobulins to the Epstein-Barr virus was studied using enzyme immunoassay. The dependence of seropositivity of children on their age and seropositivity of more than 98% of all surveyed elderly people is shown.Comparative analysis of serum concentrations of chorionic gonadotropin (hCG) associated with the pregnancy of plasma protein A (PAPP-A) and alpha-fetoprotein (AFP), based on the results of a survey of women as part of a standard screening program (the results were expressed as a MoM - multiply of the median), found a significant increase in the performance of all the studied specific pregnancy proteins in women with a scar on the uterus and placenta acctera (75 patients) compared with the data of the group of pregnant women without scar on the uterus and without abnormalities of attachment of the placenta (150 women). AFP indices were 1.68 ± 0.76 and 1.19 ± 0.43 MoM (p = 0.0018), hCG - 1.62 ± 1.48 and 1.23 ± 0.76 MoM (p = 0, 0112), PAPP-A - 1.93 ± 1.24 and 1.23 ± 0.67 MoM (p less then 0.0001). Using the ROC analysis, the diagnostic thresholds for the concentrations of AFP, hCG and PAPP-A were calculated. The risk of placenta accreta in women with a scar on the uterus in cases of exceeding the diagnostic threshold of AFP concentration (1.64 MoM) increased 2.5 times (RR = 2.5; 95% CI 1.17-5.36, p = 0, 0185), hCG (1.41 MoM) - 1.6 times (RR = 1.59; 95% CI 1.09-2.32, p = 0.0147), PAPP-A (1.41 MoM) - 2.65 times (RR = 2.65; 95% CI 1.76-3.99, p less then 0.0001). Determination of the level of specific pregnancy proteins can be used in the system of complex prediction of placental growth in pregnant women with a scar on the uterus as an addition to the assessment of clinical and anamnestic risk factors.Results of comparative ELISA investigation of pretreatment sPD-1 and sPD-L1 content in blood plasma of 100 gastric cancer patients at various disease stages aged 25 to 81 years are presented. Control group included 60 practically healthy donors aged 18 - 68 years. Plasma sPD-L1 concentrations did not differ between gastric cancer patients and control group, and sPD-1 levels were statistically significantly lower in patients than in healthy donors (p less then 0.0001). Positive correlation (R=0.38; p=0.003) was revealed between plasma sPD-1 и sPD-L1 levels in control group and negative (R= -0.26; p=0,009) - in gastric cancer patients. ROC curve revealed the best sPD-1 cut-off level ( less then 21 pg/ml) with 77% sensitivity and 63.3% specificity, which is not sufficient for its application as diagnostic marker. Statistically significant increase of plasma sPD-L1 from stage I to stage IIIC (R=0.50; p=0.000011) was found. Analysis of associations between the evaluated markers' levels and indices of gastric canctreatment efficiency.Almost all known stress stimuli, including inflammatory agonists, chemotherapeutic agents and saturated fatty acids, cause the synthesis of ceramide and its metabolites. In recent studies, it has been shown that excessive synthesis of ceramides causes the development of various metabolic diseases, such as obesity, diabetes and cardiovascular diseases. find more Currently, the role of cеramids in the development of obesity and diabetes has been studied quite well. At the same time, studies devoted to the study of lipid data in the development of cardiovascular disease are not large. In this review, we generalize the data on this new class of bioactive lipids for understanding their role in the development of cardiovascular diseases.Lithium (Li) metal is promising for high energy density batteries due to its low electrochemical potential (-3.04 V) and high specific capacity (3860 mAh g-1 ). However, the safety issues impede the commercialization of Li anode batteries. In this work, research of hierarchical structure designs for Li anodes to suppress Li dendrite growth and alleviate volume expansion from the interior (by the 3D current collector and host matrix) to the exterior (by the artificial solid electrolyte interphase (SEI), protective layer, separator, and solid state electrolyte) is concluded. The basic principles for achieving Li dendrite and volume expansion free Li anode are summarized. Following these principles, 3D porous current collector and host matrix are designed to suppress the Li dendrite growth from the interior. Second, artificial SEI, the protective layer, and separator as well as solid-state electrolyte are constructed to regulate the distribution of current and control the Li nucleation and deposition homogeneously for suppressing the Li dendrite growth from exterior of Li anode.