Method for preterm delivery prediction
SUBSTANCE: in pregnant women with retrochoric hematoma (RHG) in the period of 11 weeks to 13 weeks and 6 days the level of β-subunit of placental hormone hCG and protein RAPP-A, expressed in MoM, are analyzed, while for pregnant women with RHG of more than 1 cm3 in volume and PAPP-A level less than 0.7 MoM, the risk of preterm delivery development increases by 9.5 times, and with RHG of the same volume and the level of β-subunit of hCG less than 0.4 MI, the risk of preterm delivery development increases by 5.5 times.
EFFECT: accuracy of prediction of the preterm delivery risk is increased.
4 tbl, 3 ex
SUBSTANCE: invention refers to medicine, namely to transfusion medicine, and is applicable in selecting blood plasma donors. That is ensured by sampling blood plasma to be analysed for antimicrobial peptides defensins. If the male defensin titre is from 180 to 545 ng/ml, and the female one is from 128 to 386 ng/ml, a donor is considered to be suitable for blood plasma drawing.
EFFECT: invention enables using the donor plasma in treating the patients suffering from infectious diseases and postoperative, injury and burn complications.
SUBSTANCE: invention relates to medicine, namely to pediatrics, and can be applied for predicting reduction of child's health level at the age of 12-16. For this purpose an hour after meal and 15 minutes before mouth fluid sampling oral cavity is washed with 0.9% sodium chloride solution. Analysis of child's mouth fluid with determination of ratio of immunoglobulin A concentration to immunoglobulin G concentration is performed. Analysis is carried out twice with difference in 14 days. In case of 1.4 fold and higher reduction of immunoglobulin A concentration to immunoglobulin G concentration ratio during second analysis child is allocated to group of risk of health level reduction.
EFFECT: application of claimed method makes it possible to carry out screening in the process of carrying out prophylactic medical examination to plan health-improving procedures in groups of dispensary observation.
SUBSTANCE: invention refers to medicine, namely to gynaecology, and concerns a method for the prediction of endometrial hyperplasia in the patients with hysteromyoma following uterine artery embolisation (UAE). Substance of the method: all the patients undergo a pre-UEA diagnostic and therapeutic uterine scrapping; 6 months after the UAE, an endometrial pipelle biopsy followed by a pathomorphological study of the biopsy material is conducted. If the study shows no pathology, the biopsy materials are analysed by means of an immune histochemical study using anti-Ki-67 monoclononal antibodies; a percentage of Ki-67 proliferation marker in the uterine gland epithelium (coefficient A) and in the endometrial stroma (coefficient B) is determined; a prognostic index D1 is calculated in initial(pre-UEA) non-atypical hyperplasia, and a prognostic index D2 - in initial (pre-UEA) endometrium in the late proliferation phase: D1=A*0.05-0.74 and D2=B*0.02-0.3. If D1 is 0 or more, recurrent endometrial hyperplasia is predicted, whereas D1 less than 0 enables stating a low risk of recurrent endometrial hyperplasia. If D2 is more than 0, a low risk of developing endometrial hyperplasia is stated, whereas D2 of 0 or less shows developing endometrial hyperplasia.
EFFECT: presented method enables the high-accuracy prediction of the post-UEA endometrial hyperplasia that makes it possible to prescribe the preventive hormone therapy in due time.
SUBSTANCE: claimed invention relates to medicine, namely to immunology, and can be applied for detection of contaminants in glucose polymers. For this purpose analysis of inflammatory response is carried out in vitro with application of cell line, which represents cell line of either macrophages or differentiable in macrophages, or cell, expressing one or several toll-like receptors (TLR) or NOD-like receptors, selected from TLR2, TLR4 and NOD2. Analysis contains the following stages: (a) placing macrophages in presence of preparation of glucose polymers, which can contain anti-inflammatory contaminants, and measuring cytokine RANTES production, with production of RANTES cytokine indicating to the fact that preparation contains contaminants capable of initiating inflammatory reaction, and (b) placing cell line, which makes it possible to detect activity of innate immunity receptor or several receptors of innate immunity, selected from TLR2 and NOD2, in presence of preparation and detection of signal of reporter gene, bound to said receptor, with detection of said activity or said signal indicates presence in preparation of contaminant, which represents receptor agonist.
EFFECT: application of claimed method makes it possible to detect contaminants of glucose polymers, and addition of components, such as MDP or LPS, in tested sample makes it possible to act synergistically with contaminants, which increases sensitivity and reduces threshold of detection, with synergetic response being registered for RANTES.
28 cl, 5 ex, 23 dwg, 5 tbl
SUBSTANCE: peripheral leukocyte blood values before and after a loading test are measured with the use of the gradual submaximal exercise. The method involves the differentiated recovery of different types of leukocytes from the blood to produce a preparation; a total T-cell (Tt) and active T-cell (Ta) count is determined; a Tt/Ta ratio is derived; mononuclear cells are incubated with granulocytes; a granulocyte-binding lymphocyte index (GLI) is determined in accordance with a granulocyte rosette formation (GRL - contact bound to three granulocytes) to granulocyte contact lymphocytes (GCL - contact bound to one granulocyte) ratio in the preparation; leukocyte indices: lymphocyte index (LI), immune reactivity index (IRI), adaptation index, ("CПHP") are determined; immune functional state adaptation coefficients (K) are derived for each value. Total immune functional body state TIFBS is calculated by formula TIFBS = K"спнр"+Kli+Kiri+Kgli+K"итл" before the exercise - TIFBS1 and after the exercise - TIFBS2. A specific immune functional state coefficient SIFSC is calculated by formula SIFSC = (TIFBS1+TIFBS2)/5, and a level of the immune functional SIFSC reserve is determined. If the SIFSC values are above +1.0, the level of the immune functional reserve is considered to be optimal; the SIFSC values falling within the range of 0 to 1.0 show the satisfactory reserve, whereas the SIFSC values below 0 shows the unsatisfactory reserve.
EFFECT: method enables assessing the functional body reserves with the use of combined characteristics including the adaptation body potential, immune reactivity and immune cell interaction.
SUBSTANCE: DNA is recovered from peripheral venous blood. Genetic polymorphisms of tumour necrosis factor α (-308 G/A TNFα), tumour necrosis factor 1 receptor (+36 A/G TNFR1), interferon-inducible T-cell chemoattractant (A/G I-TAC), interleukin 1A (-889 C/T IL-1A), lymphotoxin α (+250 A/G Ltα) are typed by polymerase chain reaction. A high risk of developing hyperplastic processes of endometrium is predicted if detecting a combination of alleles -308 G TNFα, +36 A TNFR1, A I-TAC, -889 T IL-1A and/or a combination of alleles +36 A TNFR1, A I-TAC, -889 T IL-1A and/or a combination of alleles -308 G TNFα,+250 G Ltα, -889 T IL-1A.
EFFECT: higher accuracy.
2 dwg, 1 tbl, 1 ex
SUBSTANCE: chronic infectious-inflammatory diseases (CIIDs) are diagnosed. Clinical blood analysis and bacteriological tests are conducted. A sensibilisation index (SI) and an immune responsiveness index (IRI) are calculated; total microbial count per 1 m3 of the working space air is measured, and the total microbial number (TMN) is derived. If the TMN is less than 500 CFU/m3 with no CIIDs diagnosed accompanied by the SI of less than 1.08 standard units and the IRI of less than 13 standard units, the immunoassay is considered to be inadvisable. If the TMN falls within the range of 500-2,500 CFU/m3 with one CIID diagnosed accompanied by the SI from 1.08 to 1.3 standard units and the IRI from 13.1 to 15.7 standard units, the immunoassay with the first-level tests seems advisable. Whereas the TMN exceeding 2,500 CFU/m3 with at least two CIIDs accompanied by the SI of 1.4-1.5 standard units and the IRI of 15.8-18.3 standard units, the immunoassay with the second-level tests is thought expedient.
EFFECT: invention enables detecting the workers in need of further examination for the purpose of timely immune correction in the setting of mass routine examinations.
1 tbl, 3 ex
SUBSTANCE: DNA from peripheral venous blood is extracted. An analysis of a combination of genetic versions of polymorphous markers of genes of cytokines of the gene regulator of the activity of normal expression and secretion of T-cells (-403 G/A RANTES), macrophage protein -1β (+1931 A/T MIP 1β), factor of stromal cells (-801 G/A SDF1), interleukin -1 (-511 C/T IL-1B), monocyte chemoattractant protein -1 (C/G MCP-1), interleukin -4 (-590 C/T IL-4) is performed. An increased risk of development of a combination of uterine myoma with endometriosis and hyperplastic processes of the endometrium is predicted if the combination of alleles 403 A RANTES, G MCP-1,+1931 A MIP 1β, -590 C IL-4 or the combination of alleles -403 A RANTES,+1931 A MIP 1β, -801 G SDF1, -511 C IL-1B is identified.
EFFECT: application of the claimed method makes it possible to detect a group of patients with a risk of developing a combination of proliferative reproductive system diseases, which makes it possible to prescribe an adequate therapy to prevent further progressing of the diseases.
3 dwg, 2 ex
SUBSTANCE: invention deals with method of predicting level of arterial pressure in women of Russian nationality, born in Central Black Earth region of Russia. Method includes separation of DNA from lymphocytes of peripheral venous blood and analysis of genetic polymorphisms. +46G/A ADRB2 and 4a/4b eNOS by method of polymerase chain reaction Level of systolic arterial pressure in women in late pregnancy is predicted by results of multiple regression equation of the following type: Y1=15,455+2,544x1+9,946x2+0,736x3+4,716x4+0,185x5, where x1 is genetic variant in locus - 4a/4b eNOS, namely 4b4b=1; 4a4b=2; 4a4a=3; x2 is presence of preeclampsia in relatives: yes=0, no=1; x3 is level of systolic arterial pressure before pregnancy, mm Hg; x4 is presence of cardiovascular system pathology: yes=0, no=1; x5 is woman's weight before pregnancy, kg Level of diastolic arterial pressure in women in late pregnancy is predicted, for which purpose multiple regression equation of the following type is used: Y2=14,200+7,768x1-2,877x2+7,500x3+0,414x4+3,668x5, where x1 is genetic variant in locus - 4a4b eNOS, namely 4b4b+4a4b=1, 4a4a=0; x2 is genetic variant in locus +46G/A ADRB2, namely GG+GA=1, AA=0; x3 is presence of preeclapsia in relatives:yes=0, no=1; x4 is systolic arterial pressure before pregnancy, mm Hg; x5 is presence of cardiovascular system pathology: yes=0, no=1.
EFFECT: invention makes it possible to realise early prediction of increase of arterial pressure level in women in late pregnancy, will make it possible to form of women at the stage of pregravidal preparation and at early terms of pregnancy groups of high risk of developing hypertension in late pregnancy, as well as realise required therapeutic-preventive measures aimed at prevention of development of said pregnancy complication in due time.
2 dwg, 2 tbl, 1 ex
SUBSTANCE: method is based on contacting a membrane test strip with an analysed fluid sample and initiating thereby a motion along the test strip membranes of reagents being parts of the sample or coating the membrane, and forming the immune complexes to be detected in the course of reactions in the membrane pores or on the surface thereof. A distinguishing feature of the presented method for antigen detection is that the test strip is coated additionally within the test sample contact area with a certain amount of specific antibodies, which react to the detected antigen expected to be found in the sample, when a fluid front moves and block a certain number of binding sites. The number of the coating free antibodies is specified so that the low content thereof in the analysed sample being of no diagnostic importance ensures blocking the binding sites completely that prevents the antigen from binding in the analysed area of the test strip and from developing a destructive staining in the analysed area.
EFFECT: presented approach enables reliable diagnosing based on the detection results of the antigens of gastrointestinal disorders, avoiding the achievement of positive test results for the low-antigen samples, which testifies to no development of the disease in an individual.
1 tbl, 2 ex
SUBSTANCE: invention relates to investigation and analysis of high-molecular weight materials via infrared spectroscopy when determining the composition of polyacrylate and polyacrylonitrile copolymers to control the quality of carbon fibre. The method includes measuring the infrared absorption spectrum of films of test samples of polyacrylonitrile fibre using Fourier transform infrared spectroscopy in the 3000-800 cm-1 region and determining the content of acrylonitrile and methyl acrylate from normalised spectra based on characteristic peaks thereof. During sample preparation, the number of sample preparation steps is maximally simplified and reduced and dimethyl sulphoxide which does not absorb in the operating infrared region is used. When processing the obtained infrared spectra, the method employs adjustment of the entire base line, smoothing of the shape of the peaks of the investigated compounds and decomposition of the composite peak at 1733±3 cm-1 into components.
EFFECT: invention provides a method for reproducible, precision and sensitive determination of basic components of polyacrylonitrile.
2 cl, 3 tbl, 1 dwg
SUBSTANCE: invention relates to genetic engineering and biotechnology. Disclosed is a method of evaluating bioactivity of chemical compounds, where the first step includes transient transfection of cell line HEK 293 with plasmid vector pX-Y-neo (X is any eukaryote transcription factor, Y is a proteotypic peptide corresponding to said transcription factor), which contains a minimal human adenovirus type 5 promoter; a green fluorescent protein gene; a nucleotide sequence which codes the binding site of the transcription factor; a nucleotide sequence which codes the proteotypic peptide; a neomycin resistance gene; the second step includes determining the activity of the transcription factor via fluorescent analysis and chromatographic-mass spectrometer measurement of the content of the proteotypic peptide in the transfected cell culture in the presence of the test substance compared to a transfected intact cell culture.
EFFECT: invention provides fast and highly sensitive evaluation of bioactivity of chemical compounds.
2 dwg, 1 ex
SUBSTANCE: device for research of physical-mechanical properties of tuberous roots comprises a frame (1) with an electric motor (2) attached to it, on a shaft of which a removable disc (3) is mounted with the surface under study, and the guide (4) on which a movable trolley (5) is mounted. The movable trolley (5) is connected on one side to the screw mechanism (7) through the spring (6), and on the other side to a load (8) through the block (9). The device is provided with a frequency converter (13) which enables to adjust smoothly the speed of rotation of the removable disc (3), and also a screw mechanism (15) with a guide by which the gap between the trolley (5) and the removable disc (3) is implemented.
EFFECT: increase in the accuracy of the results of research on friction process of rest and movement of tuberous roots on different surfaces.
FIELD: measurement equipment.
SUBSTANCE: invention relates to the field of assessment of atmospheric air pollution degree and may be used in monitoring of atmospheric air in background and urbanised territory. The method provides for identification of a test site with size of 25×25 m, detection of external criteria of lichen on the test site, detection of available indicator types of lichen and frequency of their occurrence. On the basis of the produced data the lichenoindex is calculated, according to the provided classification of lichenoindex, they determine degree of atmospheric air pollution.
EFFECT: invention makes it possible to detect degree of atmospheric air pollution by lichen.
4 tbl, 1 ex
SUBSTANCE: object is positioned on porous substrate, fixed to the substrate surface and scanned by probe microscopy method. Substrate with through pores of smaller size than the diameter of a study object is used, and an object is fixated by laminar flow of liquid or gas supplied to the substrate from the side of scanning, with clamping force exerted by the flow on an object within 10-12-10-3 N range.
EFFECT: possible study of structures and mechanical properties of organic and inorganic objects, enhanced information content of nano and micro object studies by probe microscopy.
SUBSTANCE: invention relates to ecology. The invention provides a method of determining the quality of the environment by EPR-spectroscopy of lichens, including the collection of samples of lichen thalli from the trunks of trees growing in an industrial and background area, which is not contaminated by anthropogenic emissions into the environment, cleaning, drying, grinding, which is characterised by the fact, that drying is carried out at a temperature of 85-95°C to constant weight and ground, the EPR spectra are removed, from which the concentration of paramagnetic centres is determined, in the excess of the concentration of the paramagnetic centres in the lichen samples collected in the industrial zone, over the concentration of the paramagnetic centres of the lichen samples from the background area the low quality of the environment in the industrial zone is detected, and in case of equal concentrations of the paramagnetic centres - the acceptable quality of the environment is detected, and in the studies the samples of the same species of lichen are used.
EFFECT: invention provides the improvement of the method of lichenoindication, improvement of the quality of evaluation of the test objects, obtaining objective result.
2 ex, 2 tbl, 3 dwg
SUBSTANCE: method of determining ammonium compounds in the atmosphere of livestock complexes comprises collecting samples of lichen from trees growing in the background zone, which has no emissions of pollutants into the atmosphere. The data for the samples of lichen collected in the zone of pollutants emission to the atmosphere is compared with data for laboratory standards by IR spectroscopy method. For obtaining the standards under laboratory conditions the interaction process of lichen of the background zone with emission of pollutants contributing to formation of ammonium sulphate is simulated. Lichen Parmelia sulcata is used as bioindicator.
EFFECT: invention enables to determine the level of ammonium compounds in the atmosphere of livestock complexes.
2 tbl, 1 dwg
SUBSTANCE: invention relates to ferrous metallurgy and can be used to determine chemical composition of materials containing lump metal and used as raw material in cast iron production. The method involves separation of material into metal and slag fractions, measurement of metal fraction weight, grinding of slag fraction down to the fineness of 5 mm at most and determination of weight ratio of total ferrum and of necessary components in it by complete acid digestion, calculation of weight ratio of total ferrum and of components in the material, after grinding a sample is taken with the fineness of from 0.16 mm to 5 mm at most and chemical analysis is performed.
EFFECT: improved information value and reliability of analysis.
SUBSTANCE: invention refers to medicine and can be used for the prediction of the early stage of lymphocyte apoptosis. That is ensured by isolating cells, incubating for 48 hours at temperature 37°C with 5% CO2 with adding apoptosis inductor, dexamethasone in the concentration of 10-4 mole/ml. A lymphocyte viability is quantified by trypan blue inclusion, the recovered and oxidised glutathione concentrations are measured in lymphocyte lysate after the 30-minute pre-incubation with 2-vinylpyridine 10 mM. The early stage of lymphocyte apoptosis is stated, if observing an integrated decrease of the recovered glutathione concentration by 17% and more and an increase of the oxidised glutathione concentration by 19% and more as compared to the reference.
EFFECT: using the presented method in medical practice enables predicting the antioxidant state of the patient's body accompanying various diseases as shown by the early stage of lymphocyte apoptosis evaluated.
SUBSTANCE: method includes the selection and preparation of samples to be analysed, selection of specified volumes of solutions of a test system components, placement of the samples to be analysed and the test system components into a cuvette, registration of chemiluminiscence with further quantitative estimation of its value with taking into account the background signal of chemiluminiscence. The weight of porting of the sample of the material to be analysed is taken such that corresponds to the value of a specific surface 0.20±0.05 m2/g, and in case when it is not possible to determine the value of the specific surface of the sample to be tested, the weight of the taken portion is 0.010±0.005 g. The portion of the sample of the material to be analysed is placed into a cuvette with the further successive addition of the test system components: 0.01M solution of luminal in 0.5 NaOH solution and a solution of hydrogen peroxide of a 20-30% concentration to fill the working space in the cuvette, keeping the ratio luminal:hydrogen peroxide equal to 2:5. After that, values of chemiluminiscence are registered for 125 minutes and the total value of chemiluminiscence is calculated.
EFFECT: identification of the free-radical activity of solid materials by the method of the chemiluminiscence registration by means of the system of chemical reagents without the application of biological substrates in the test system.
3 tbl, 3 ex
FIELD: technologies for testing properties of materials.
SUBSTANCE: method for determining composition of bi-nonary condensed type systems, in case of core sizes in fractions d1>d2>d3>…>d9>d10 and in case of core dimensions relations d2/d1,d3/d2,…,d10/d9 greater than 0.155 fractions volumes are determined from formulas for binary systems V1=1m3, Y1=1-d2/d1, V2=1m3·Y1·Ve1,m3, for ternary systems Vsm2=1m3, Y2=1-d3/d2av, V3=1m3·Y2·Vemp,m3, for quaternary systems Vsm3=1m3, Y3=1-d4/d3av, V4=1m3·Y3·Vemp3,m3, for quinary systems Vsm4=1m3, Y4=1-d5/d4av, V5=1m3·Y4·Vemp4,m3, for senary systems Vsm5=1m3, Y5=1-d6/d5av, V6=1m3·Y5·Vemp5,m, for septenary systems Vsm6=1m3, Y6=1-d7/d6av, V7=1m3·Y6·Vemp6,m3, for octuple systems Vsm7=1m3, Y7=1-d8/d7av, V8=1m3·Y7·Vemp7,m3, for nonary systems Vsm8=1m3, Y8=1-d9/d8av, V9=1m3·Y8·Vemp8,m3, where V1,V2…,V9 - piled up fraction volume with core sizes respectively d1,d2,…,d9,m3,Vsm2,Vsm3,…,Vsm8 - piled up volume of binary, ternary,…,octuple friable condensed type system, m3, Y1,Y2,…,Y8 - coefficient of condensation level of fraction with core size d1 by fraction with core size d2, condensation of binary friable system with average core size d2av by fraction with core size d3,…, condensations of octuple friable systems with average core size d8av by fraction with core size d9, Ve1 - emptiness of fraction with core size d1, Vemt2, Vemt3,…,Vemt8 - emptiness value for binary, ternary,…, octuple friable condensed type system.
EFFECT: lower laboriousness, higher effectiveness, possible optimization by utilizing computer means.
11 ex, 1 tbl