Репозиторий Университета

© COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only. In this paper, we demonstrate instruments for laser radiation delivery based on sapphire capillary needles. Such sapphire irradiators (introducers) can be used for various medical applications, such as photodynamic therapy, laser hyperthermia, laser interstitial thermal therapy, and ablation of tumors of various organs. Unique properties of sapphire allow for effective redistribution of the heat, generated in biological tissues during their exposure to laser radiation. This leads to homogeneous distribution of the laser irradiation around the needle, and lower possibility of formation of the overheating focuses, as well as the following non-transparent thrombi.

© 2018 Frontiers in Bioscience. All Rights Reserved. We review the progression of aging as a sequential development of multiple syndromes analogous to other diseases. This generalized approach may allow practicing physicians to consider the signs of aging as manifestations of a poly-syndrome disease and facilitate prevention, diagnosis and treatment of common aging-related dysfunctions.

© 2018 Media Sfera. All rights reserved. Endocrine ophthalmopathy (EOP) is a severe chronic autoimmune disease associated with autoimmune thyroid pathology that leads to loss of sight, cosmetic defects and quality of life decrease. EOP is difficult to give prognosis for due to various factors affecting its course and outcome. Purpose - to develop a reliable and precise prognosis method for EOP activity and severity based on personalized combination of risk factors in specific patients by multidimensional linear regression modeling. Material and methods. A group of 139 patients (278 orbits) with newly diagnosed EOP associated with toxic diffuse goiter was observed during 1 year by an ophthalmologist and an endocrinologist; patient examination interval was 6 months. More than 250 indices were dynamically analyzed in the course of the study. Linear regression analysis was chosen as the research method; it allowed detection of linear dependencies between dependent and explanatory variables. Results. More than 600 various linear regression equations were derived that enabled prediction of EOP onset risk and development timeline, estimation of activity and/or severity of the disease, duration of active period in specific patients for the immediate and long-term outcome. From the derived models, the most reliable and safest for practical application were picked out. The present study introduces nine optimized models that can be used for patient follow-up since day one. Conclusion. The onset risk, progression and outcome of the disease can be determined by a combination of factors revealed in the study.

© 2018 Nutritec. All rights reserved. Research objective: studying of features of nutrition in elderly patients with removable stomatologic orthopedic constructions. 1388 patients aged from 60 up to 75 years which addressed in a city dental out-patient department were examined. Patients were divided into three groups: group 1 -The persons having only fixed stomatologic orthopedic constructions (n=419); group 2 -The persons having at least one partially removable stomatologic orthopedic construction and not havingfull-removable orthopedic constructions (n=512); group 3 -The persons having at least one full-removable stomatologic orthopedic construction (n=457). Patients were interviewed about nutrition features (frequency of consumption). Anthropometric researches were conducted. There were 2.2 and 1.3 fold more persons in group 3 with a concomitant increase in waist circumference and waist-hip ratio compared to groups 1 and 2 (p=0.0013). Persons from group 3 consumed meat significantly less often than patients in groups 1 and 2. A similar trend was observed for meat products, vegetables and fruits (p<0.05). Compared to patients in groups 1 and 2, patients from group 3 more often consumed cereals, potatoes, rice, pasta, as well as sauces, mayonnaises, margarines. AU examined elderly patients rarely consumed fish and seafood (76.0-89.9% persons consumed once a month and less often).

© 2018, Media Sphera Publishing Group. All rights reserved. Objective. A pharmacoeconomic analysis of direct costs on treatment with high dose intravenous immunoglobulins (IVIG) and plasmapheresis (PP) in children. Material and methods. Literature data on the pathogenesis of Guillain—Barre syndrome (GBS) were analyzed. The results of pharmacoeconomic analysis of direct costs on treatment of GBS using IVIG and PP are presented. Risks for complications during treatment with IVIG and PP are calculated. Results and conclusion. The pharmacoeconomic analysis demonstrates comparable costs of treatment with IVIG or PP in the Russian Federation. Nevertheless, a less number of complications, convenience in use and the good safety and tolerability profile make it more preferable to this group of patients. In a clinical case of a 7-year child described in the article, treatment with 10% IVIG — privigen in dose 2 g/kg during 5 days started in the 3rd week of disease showed a marked positive effect.

© 2018 Stavropol State Medical University. All rights reserved. To improve the diagnostics of erectile dysfunction (ED) 138 men with the trouble of erection quality have been examined using ultrasound dopplerography of the penis and phalloscintigraphy. In 7.8 % of cases no pathology was found. In 28.1 % of patients arterial ED has been identified by phalloscintigraphy, in 23.4 % - venoocclusive ED and in 40.6 % - disruption of the microcirculation within the corpora cavernosa of the penis. Phalloscintigraphy demonstrated high sensitivity (91 %) and specificity (94 %) in identification of various forms of vasculogenic ED.

© 2018 Morozov et al. Trans-acting small interfering RNAs (ta-siRNAs) are transcribed from protein noncoding genomic TAS loci and belong to a plant-specific class of endogenous small RNAs. These siRNAs have been found to regulate gene expression in most taxa including seed plants, gymnosperms, ferns and mosses. In this study, bioinformatic and experimental PCR-based approaches were used as tools to analyze TAS3 and TAS6 loci in transcriptomes and genomic DNAs from representatives of evolutionary distant non-vascular plant taxa such as Bryophyta, Marchantiophyta and Anthocerotophyta. We revealed previously undiscovered TAS3 loci in plant classes Sphagnopsida and Anthocerotopsida, as well as TAS6 loci in Bryophyta classes Tetraphidiopsida, Polytrichopsida, Andreaeopsida and Takakiopsida. These data further unveil the evolutionary pathway of the miR390-dependent TAS3 loci in land plants. We also identified charophyte alga sequences coding for SUPPRESSOR OF GENE SILENCING 3 (SGS3), which is required for generation of ta-siRNAs in plants, and hypothesized that the appearance of TAS3-related sequences could take place at a very early step in evolutionary transition from charophyte algae to an earliest common ancestor of land plants.

Rheumatoid arthritis (RA) is a multifactorial disease, in which the interaction of the genetic component and environmental factors, determines not only the development of the disease, but also its pronounced clinical polymorphism. We assume that the high inflammatory activity of RA may be determined by the genes, the products of which trigger inflammatory processes. Objective: to investigate allele and genotype distribution of gene polymorphic variants in active anti-cyclic citrullinated peptide (aCCP)-positive patients with RA from the REMARCA program versus a control group of healthy blood donors. Subjects and methods. A molecular genetic study enrolled 146 aCCP-positive patients from the REMARCA program and a control group of 314 healthy blood donors without autoimmune diseases and their presence in the history, who were matched with the study group for gender and sex. The polymorphic variants of the genes PTPN22 (+1858C>T, rs2476601), TNFAIP3 (rs6920220, rs10499194), CTLA4 (+49A>G, rs231775), TNF? (-308A>G, rs1800629), IL6 (-174G>C, rs1800795), IL6R (+358A>C, rs8192284), IL10 (-592A>C, rs1800872, -892 C>T, rs1800871, -1082 A>G, rs1800896), and MCP1/CCL2 (+2518A>G, rs1024611) were genotyped by a real-time polymerase chain reaction assay. Results and discussion. The genotype and allele frequencies of polymorphic variants of the genes CTLA4 (+49A>G), IL-6R (+358A>C), and IL10 (- 592A>C) in the RA group significantly differed from those in the control group. When comparing with the control group, the minor alleles of the CTLA4 and IL10 genes were markers for the risk of aCCP-positive RA with a high inflammatory activity (OR=1.4 [1.1; 1.9], p=0.02 and OR=1.9 [1.4; 2.5]; p=0.0001, respectively). At the same time, the minor C allele of the IL6R gene served as a marker of protection (OR=0.7 [0.5; 0.9]; p=0.03). Logistic regression analysis revealed that there was a statistically significant correlation of the high inflammatory activity indices SDAI, CDAI, and DAS28 with the minor homozygous GG genotype of the CTLA4 gene (OR=2.5 [1.1; 6.0]; p=0.03, OR=2.6 [1.1–6.4], p=0.03 and OR=3.4 [1.3–8.8]; p=0.01, respectively). In addition, the inflammatory activity indices SDAI and CDAI rather than DAS28-ESR were associated with at least one minor A allele (the AA/AC genotypes) of the IL10 gene (OR=2.4 [1.2; 5.1], p=0.02 and OR=2.2 [1.1; 4.7]; p=0.03, respectively). The levels of ESR and CRP were not associated with the examined polymorphisms. Conclusion. The findings may suggest that there is a relationship of the polymorphisms of the genes CTLA4 (+49A>G, rs231775), IL6R (+358A>C, rs8192284), and IL10 (-592A>C, rs1800872) to high inflammatory activity in the group of aCCP-positive patients from the REMARCA study.

© 2018 Media Sphera Publishing Group. All rights reserved. Forensic medical expertise carried out with a view to reconstruction of an event is a time-consuming procedure because it requires collection of a large amounts of various materials for the institution of a criminal investigation including physical evidence, photoboards of the site of an occurrence, etc. A forensic medical expert may encounter difficulties when reconstructing and scrutinizing the scene of action at a single computer monitor in order to analyze the behaviour of each participant of the event. Of great help in such situations are modern software programs allowing to visualize the site of an occurrence with a maximum approximation to reality, simulate the actions of the victim(s) and alleged offender(s), perform a large number of other forensic studies. The present article provides the practical examples illustrating the possibilities of reconstruction of various events with the use of the three-dimensional modeling based on the MicroSmith Poser and Agisoft PhotoScan software packages for clarifying various circumstances, facts, and conditions of special interest for the preliminary investigation and inquiries.

© 2017 Elsevier B.V. gem-Difluorinated phosphonium salts, generated from aldehydes and difluorinated phosphobetaine reagent, were converted into corresponding silicon reagents. The reductive silylation of carbon-phosphorus bond is carried out using a combination of magnesium and chlorotrimethylsilane in dimethylformamide. For a model difluoroined phosphonium salt, X-ray structure and reduction potential are provided.

© 2018 Elsevier Inc. Objectives One of the most reliable methods for diagnosing bladder cancer is cystoscopy. Depending on the findings, this may be followed by a referral to a more experienced urologist or a biopsy and histological analysis of suspicious lesion. In this work, we explore whether computer-assisted triage of cystoscopy findings can identify low-risk lesions and reduce the number of referrals or biopsies, associated complications, and costs, although reducing subjectivity of the procedure and indicating when the risk of a lesion being malignant is minimal. Materials and methods Cystoscopy images taken during routine clinical patient evaluation and supported by biopsy were interpreted by an expert clinician. They were further subjected to an automated image analysis developed to best capture cancer characteristics. The images were transformed and divided into segments, using a specialised color segmentation system. After the selection of a set of highly informative features, the segments were separated into 4 classes: healthy, veins, inflammation, and cancerous. The images were then classified as healthy and diseased, using a linear discriminant, the naïve Bayes, and the quadratic linear classifiers. Performance of the classifiers was measured by using receiver operation characteristic curves. Results The classification system developed here, with the quadratic classifier, yielded 50% false-positive rate and zero false-negative rate, which means, that no malignant lesions would be missed by this classifier. Conclusions Based on criteria used for assessment of cystoscopy images by medical specialists and features that human visual system is less sensitive to, we developed a computer program that carries out automated analysis of cystoscopy images. Our program could be used as a triage to identify patients who do not require referral or further testing.

BACKGROUND: The high level of physical activity is known to contribute to the harmonious development of children and adolescents: moreover; it is a factor promoting prevention of hypodynamia. The low level of physical activity is a risk factor for the development of many non-communicable diseases. However, physical education is not considered by many students as an attractive subject. AIM: The objective of the present study was the enhancement of the motivational aspects of physical activity for the prevention of hypodynamia among students. MATERIAL AND METHODS: Physical education of the students was carried out with the use of the standard and modified methods. A total of 206 students (including 133 girls and 73 boys) at the mean age of 17.5±1.5 years were available for the examination. The study was conducted before the intervention (1st year) after the termination of the physical culture lessons envisaged by the academic curriculum (3rd year). The evaluation of the physical conditions and fitness of the students was conducted on the basis of the Russian Physical Culture and Sport Complex (GTO), bioimpedance analysis making use of the 'Medass' ABC-01 device; the functional reserves of the organism were assessed by means of hardware-software programs; the changes in food preferences were estimated on the basis of the FLLANK, questionnaire preliminarily adapted to the specific conditions of this country, and the characteristics of the metabolic processes were evaluated by laser correlation spectroscopy. RESULTS: Dynamics of the successful performance of the GTO normatives in the girls manifested itself in the in reduction of time they spent to run the 100 meter distance; the same was true for the boys who had to overcome the distance of 3000 meters. The students of both sexes became capable of increasing the number of repetitions of crunch and jumping rope exercises. The basal metabolism in the girls was increased within one year after the start of classes, and in the boys two years after the onset of the exercises; simultaneously, the positive changes in the metabolic profile were documented in the students of either sex. No adverse events related to the application of the modified training methods were recorded. CONCLUSION: An important aspect of the present study was the impact of new methods of teaching physical education on the composite body composition. The modified methods were found to shift dietary preferences and metabolic processes in the body of the students after the termination of the educational program.

© 2018 Stavropol State Medical University. All Rights Reserved. The review presents modern methods of therapeutic treatment of periodontal disease using a variety of drugs. The advantages and disadvantages of the use of drugs in various dosage forms and medical devices are presented. The actual direction in development of new means of hygiene and care of the oral cavity based on the use of natural mineral salts for non-drug therapy of periodontal diseases is revealed.

© 2018 Ruslania. All rights reserved. The frequency of resistance of pathogens to antimicrobial drugs is on continued rise with a threat of returning to the "pre-antibiotic" era. This has led to the appearance of bacterial infections which are essentially untreatable by the current spectrum of available modem preparations. The presence of cross-group resistance inspires the search of new targets for antibacterial drugs both in the pathogen body and in the human body. This review considers potential strategies for the search of the new generation of antimicrobial agents for treating drug-resistant pathogens.

[This corrects the article DOI: 10.3389/fimmu.2018.02515.].

© 2018 by the authors; licensee Modestum Ltd., UK. Objective: The article is devoted to the study of attributive components of people diagnosed with Ischemic heart disease. Effort angina. The results of empirical studies of the attributive process are discussed in the article. Now more and more researchers, both domestic and foreign, are beginning to consider attribution as one of the principles of human existence. Attributive processes initially began to be developed in line with the cognitive orientation of social psychology. Currently, they are actively considered in the framework of the psychology of social cognition. Method: We conducted a study on 24 subjects with an average cholesterol level of 7.426 mmol / l (concomitant diseases-hypertension, diabetes, obesity, metabolic syndrome), who underwent treatment in the Central City Clinical Hospital in the rehabilitation department with the diagnosis of Ischemic Heart Disease. Effort Angina. Initially, we conducted the survey of subjects in order to identify their subjective judgment about the cause of the disease. They were asked a question: “In your opinion, what is the cause of your heart disease?” Results: The results of the survey conducted testify that only a small percentage of the subjects believe that they could exert any influence on their health and, for example, to reduce environmental or biological factors. One would assume that such results may be a specific demonstration of the fact that an individual gains experience that it is precisely human health that is difficult to correct and change and simply does not solve it due to the complexity of the problem. However, data obtained in the course of other experiments and studies [19] show that a person is inclined to explain what is happening by circumstances or situational causes, rather than personal ones. The results obtained with the help of T. Dembo’s cognitive self-assessment technique indicate that women believe that they actually have much less physical exertion and their daily routine is more correct than people who are close to them, in their opinion, think about it. We can assume that introjects are more often peculiar to women than men that are related to housekeeping, which sometimes requires considerable physical activity and time. When a woman has to, at the insistence of a doctor, reduce her physical activity and somehow comply with the daily regimen, she feels discomfort because of which she believes that she “does nothing at all”, although her relatives continue to persuade her to have a rest. Here it is appropriate, in our opinion, to raise the problem of accepting oneself and, as a sequence, to take adequate care of oneself. Significant differences in the self-attributive and reflexive components were also discovered in the emotional sphere of the female subjects. In their opinion, they experience low intensity of negative emotions, such as fear and anger, but at the same time they believe that their close relatives radically disagree. This situation can be explained either by the fact that they assume that they have negative emotions more strongly than they would like (and what they admit to this in the study), or they are judged by the words of relatives who can also make their judgments by interpreting the facts with varying degrees of adequacy. Conclusion: In conclusion, it should be noted that during the analysis we encountered at least two facts that require further empirical research. Firstly, we identified three types of explanations (attributions) in the subjects’ answers: adverbial, subjective and personal, and the latter type of causal attribution is not expressed clearly in the subjects of the study. This poses new questions: does a particular type of situation contribute to this perception, or are there any other factors (including personal ones) playing the role here. Secondly, the following questions arise: how exactly does a subject choose only one alternative from a variety of explanatory reasons. All these questions will be understood as a part of our further research.

© 2018 by the authors; licensee Modestum Ltd., UK. Objective: The study of the features of the higher mental functions of the brain in patients suffering from addiction to psychoactive substances is very important for narcology. It is necessary not only to uncover the mechanisms of addiction, a complete understanding of the neurophysiological processes that determine the nature of the development and severity of the disease, but also to solve practical problems related to the development of treatment methods and the implementation of preventive measures. Method: In the study of patients, a specially designed map was used containing information on the hereditary and demographic characteristics, on the course of the disease, as well as on the socio-cultural status of patients. To determine the functional state of cortical activity in the process of perception of unconscious signals, a special technique was used. The obtained results were subjected to dispersive analysis and the significance of differences was calculated according to Student’s t-criterion. Results: An analysis of premorbid personality traits made it possible to establish the prevalence of instability, pathological conformity, and hysteroidal features in patients. It should be noted that a large percentage of the surveyed had a hereditary burden of alcoholism, mainly in the line of the father. Curiosity, passive submission, imitation of friends were among the motives of the first drug use. All patients in the process of addiction formed the following features: increased excitability, increasing effective disorders (depression, dysphoria), aggravated by exacerbation of craving for the drug, a decline in morals and ethics (egoism, deceit, indifference to one’s fate, hedonism, loss of sense of duty), disorders of the emotional-volitional sphere (emotional instability, hypersensitivity, vulnerability). Conclusion: The analysis of the duration of latent periods and magnitude of the amplitudes of the late positive R3OO wave in patients with heroin addiction revealed clear differences between the data obtained upon presentation of an unconscious neutral and motivationally significant word. Patients who use psychoactive substances, using the method of recording induced potentials of the brain, which is a sensitive indicator of the activity of brain structures in relation to the substance used, revealed a clear diffuse activation of the cerebral cortex in response to an unconscious verbal stimulus related to the motivation prevailing in patients, in particular to “heroin”. Such activation, as well as the difficult dying out of the developed reactions to an unconscious stimulus, indicate certain neurophysiological foundations of the mechanism underlying the changes in the motivational sphere and the stability of the pathological craving for the psychoactive substance.

© 2018, Media Sphera Publishing Group. All rights reserved. The objective of the present study was the criminalistics evaluation of the changes in the structure of the illegal drug market and the volume of drug sales that took place during the recent years. One of the most challenging problems associated with the new situation is the extensive distribution of synthetic cannabimimetics that constitutes one of the most serious threats to the public security. The criminological analysis of the forensic expert practice provided materials for the criminalistics characteristic of the recent events at the criminal drug market in several regions of this country as of 2014 with special reference to the cases of mass poisoning of the young people attributable to the use of the new psychoactive agents. The authors emphasize the important role of forensic medical and other forensic expertises for the identification and comprehensive evaluation of all the factors and circumstances associated with the current situation and characterizing the level of social unsafety under the conditions of the illegal trafficking of the new psychoactive substances. It is concluded that the further improvement of the criminal legislation is urgently needed to strengthen the responsibility for the participation in the subversive and terrorist activities.

© 2018, Econjournals. All rights reserved. An upward trend in conventional energy consumption and the exhaustibility of its resources, volatility of the prices for hydrocarbons in the global energy market update the development of scientific approaches to justification of the commercial efficiency of alternative energy in the Russian Federation. Integrated economic performance and environmental safety coefficients for generating companies in Russia were calculated through taxonomic analysis. Trends in the expenditure level for energy production in the context of alternative and conventional energy resources were forecasted by means of neural modeling technologies. Using an integrated assessment method, global priorities for the use of energy resources in Russia that would enhance the national energy system operation efficiency were identified. A forecasting integrated model of the Russian energy system development was elaborated, taking into account the commercial efficiency of alternative energy. Measures to stimulate energy production based on the use of alternative energy sources were proposed. Practical implementation of the research findings would contribute to Russia’s energy system restructuring and meeting the energy needs of the national economy to the fullest extent possible.

Copyright © 2018 by Mutaz B. Habal, MD. Modern clinical protocols in implantology aim at shortening the treatment time and reducing duration and discomfort of the surgical phase, while maintaining optimal treatment outcomes. The purpose of this study was to evaluate clinical outcomes of implants immediately placed in extraction sites, using a single drilling step for implant site preparation. One-hundred thirty-three patients (mean age 55.3 ± 12.7 [SD] years, range 20 – 83 years) were treated at 2 clinical centers. Two-hundred sixty-one implants were inserted in fresh postextraction sockets. One-hundred sixty-five implants were immediately loaded (IL) and 96 underwent delayed loading (DL). Implant survival, peri-implant bone level change and patients’ satisfaction were assessed after at least 3 years of function. No patient dropout occurred. The mean follow-up was 63.61 ± 11.52 months (range 39.71 – 85.71 months) from prosthesis delivery. Two IL and 1 DL implant failed in 3 patients. Implant survival was 98.8% and 99% for IL and DL group, respectively. The mean marginal bone loss after 1 year was 0.48 ± 0.40 mm and 0.52 ± 0.34 mm for IL and DL group. No biological nor mechanical complications occurred. All patients demonstrated full satisfaction. The present protocol with single burs for site preparation produced satisfactory clinical outcomes independent of the loading timing. Further long-term comparative studies are needed to confirm the present findings.