Fortification of food with micronutrients: development of methodological and regulatory framework in the Russian Federation

The available scientific literature, domestic and international regulatory codes of normative documents concerning the fortification of various types of food products have been analyzed. The groups of food products of conventional and regular consumption included into the diets of all categories of consumers, recommended for fortification with essential micronutrients, have been determined: wheat and cereal flour (spelt wheat, buckwheat, oat, corn flour, etc.); pastry; milk and dairy products, including ice cream; non-alcoholic soft drinks; mineralized drinking water; fruit and vegetable juices; fat and oil products (vegetable oils, margarines, spreads, mayonnaise); confectionery and sweets (pastry, sugar, chocolate); cereals (breakfast cereals, muesli, ready-to-eat extruded cereals, instant pasta and cereals, mixtures for bakery, flour for sweet pastry); food concentrates (jelly, instant drinks, concentrates of sweet foods, instant food, instant cereal concentrates); table salt. The groups of food products assigned for certain categories of population are used as part of therapeutic diets for patients with various diseases (metabolic disorder syndrome, cardio-vascular system pathology with atherosclerotic vascular injury, type 2 diabetes mellitus, gastrointestinal tract diseases, non-alcoholic fatty liver disease, diabetic nephropathy, etc.), as well as assigned to reduce the risk of diseases developing, the nutrients are recommended for targeted fortification of certain types of food. Examples of micronutrients fortification of sausages and minced meat semifinished products are given below. Requirements for fortification of mass consumption food products and for fortification of foods for special dietary uses are formulated in this article, the amount of fortifying components in the various groups of food products are justified, ensuring their efficiency for improving the micronutrient status and safety of its consumption. Based on the analysis of the available scientific literature, domestic and international regulatory framework of normative documents on fortification of various types of food products, recommendations have been developed for fortification of food with micronutrients

Climate changes in East Siberia (Russia) in the Holocene based on diatom, chironomid and pollen records from the sediments of Lake Kotokel

We analysed a 620-cm-long sediment record from Lake Kotokel located in East Siberia (Russia) for subfossil diatoms, chironomids and pollen to provide a reconstruction of the climate history of the area for the last 12. 2 kyr. The subfossil records show differing time lags in their responses to climate change; diatoms and chironomids were more sensitive to climate change than the pollen record. Changes in the biogenic proxies seem related with changes in insolation, the temperature of the North Atlantic and solar activity. The chironomids Chironomus plumosus-type and Einfeldia carbonaria-type and the diatom Aulacoseira granulata were interpreted as markers of warm climate condition. The proxy records were divided into four periods (A, B, C and D) suggesting differing climate in East Siberia during the Holocene. Period D (12. 2-9. 5 kyr BP) at the beginning of the Holocene, according to chironomid and diatom records, was characterized by warm climate with summer temperatures close to modern. However, forest vegetation had not become fully established yet. During Period C (9. 5-5. 8 kyr BP), the climate seemed to gradually become colder and wetter from the beginning of Period C to 7 kyr BP. From 7 to 5. 8 kyr BP, the climate seemed to remain cold, but aridity increased. Period B (5. 8-1. 7 kyr BP) was characterised by frequent and sharp alternations between warm and cold conditions. Unstable conditions during this time are also registered in records from Lakes Baikal, Khubsugul and various other shallow lakes of the region. Optimal warm and wet conditions seemed to occur ca. 4 kyr BP. During Period A (the last 1. 5 kyr) the diatom and chironomid records show evidence of cold conditions at 1. 5-1 kyr BP, but the forest vegetation did not change significantly. © 2012 Springer Science+Business Media B.V

Political activity of modern russian youth and marginal political practices

The article presents a typology and analysis of the most typical marginal political practices, describes the general political activity of young people, their attitude to certain types of political practices and their willingness to use them in their own models of behavior.В статье представлена типология и анализ наиболее типичных маргинальных политических практик, описана общая политическая активность молодежи, ее отношение к отдельным видам политических практик и готовность к их включению в собственные модели поведения

THE STUDY OF THE TENDENCY TO ADDICTIVE BEHAVIOR OF STUDENTS USING THE PSYCHOPHYSIOLOGICAL METHOD

The problem of diagnostics of addictive behavior of students is considered, for the solution of which it is proposed to use the method of oculography, which allows to fix a person’s involuntary attention to stimuli that are significant for him. The results of an experiment conducted to identify the propensity of students to addictive behavior are described.Рассматривается проблема диагностики аддиктивного поведения обучающихся, для решения которой предлагается использовать метод окулографии, позволяющий зафиксировать непроизвольное внимание человека к значимым для него стимулам. Описываются результаты проведенного эксперимента по выявлению склонности студентов к аддиктивному поведению

ИММУНОХРОМАТОГРАФИЧЕСКИЙ МЕТОД В ДИАГНОСТИКЕ ПНЕВМОКОККОВЫХ ЗАБОЛЕВАНИЙ РЕСПИРАТОРНОГО ТРАКТА

Streptococcus pneumonia – one of the reasons for the appearance of complications from influenza and acute respiratory diseases, occurring with a lesion of ENT organs and respiratory system. In this regard, there is a substantial need for the use of additional methods of laboratory testing for verification of pathogen. Diagnostics of complications from respiratory diseases caused by pneumococcal flora has been carried out by immunochromatographic assay. Microbiological examination revealed the pneumococcal etiology of complications only in 14,0% of cases, but verification of diagnosis by detection of Streptococcus pneumonia antigen in the urine in 29,8%.Streptococcus pneumonia – одна из причин возникновения осложнений при гриппе и острых респираторных заболеваниях, протекающих с поражением ЛОР- органов и дыхательной системы. В связи с этим возникает существенная необходимость использования дополнительных методов лабораторного исследования для верификации возбудителя. Проведена диагностика осложнений респираторных заболеваний, вызванных пневмококковой флорой, с помощью иммунохроматографического анализа. Микробиологическое исследование позволило выявить пневмококковую этиологию осложнений только в 14,0% случаев, а верификация диагноза  утем определения антигена Streptococcus pneumonia в моче –в 29,8%

Применение поликлональных антител у доноров со смертью мозга при пересадке почек

Objective. The objective of this study is to develop a therapeutic strategy for protecting grafts in order to improve the efficiency of kidney transplantation (KT) using polyclonal antibodies (pAbs) through elimination of activated forms of neutrophils, chemo- and cytokines from the donor’s bloodstream, and a decrease in the level of expression of adhesion molecules on the renal vascular endothelium at the pre-transplant stage.Materials and methods. In 2017, we developed and for the first time applied a therapeutic strategy for ischemia-reperfusion injury (IRI) in a brain-dead donor (BDD). Given the limited time interval after brain death has been diagnosed, Timoglobulin (Sanofi Genzyme, France) was administered to the donor at a dose of 8 mg/kg intravenously for 6 hours. Before drug administration and immediately before the start of cold perfusion, a complete blood count and renal transplant biopsy were performed. The study group included 10 BDDs (mean age 39.3 ± 4.4 years) who received anti-thymocyte globulin (ATG). The comparison group included 10 BDDs (mean age 38.5 ± 4.3 years) who did not undergo the new strategy. Donor kidneys were transplanted to 40 recipients (average age 47.5 ± 4.3 years), who were also divided into 2 groups, depending on the graft received (with and without ATG). At the organ donation center, a biobank of specimens from donors of various categories, including those using the IRI therapeutic strategy and recipients for retrospective assessment of the effectiveness of pAbs, was formed.Results. Clinical blood test results show that in the ATG group, there was stable leukopenia (neutropenia and lymphopenia) of 1.46 ± 0.18x109/l. Fifteen (75%) recipients of kidneys obtained from donors with ATG had immediate graft function; in the control group – 10 (50%) recipients.Conclusion. Data obtained testify to the prospects of implementing the proposed strategy in clinical practice, which will improve the quality of the resulting grafts and their suitability for subsequent transplantation, prolong graft functioning due to elimination of leukocytes as a factor of IRI, prevention of early allograft nephropathy, increase in the donor pool by using expanded criteria donors (ECDs).Целью данного исследования явилась разработка протокола медикаментозной защиты трансплантатов для повышения эффективности пересадки почек с помощью применения препарата поликлональных антител (ПКАТ) за счет элиминации из кровотока донора активированных форм нейтрофилов, хемо- и цитокинов, снижения уровня экспрессии молекул адгезии на эндотелии сосудов почек на предтрансплантационном этапе.Материалы и методы. В 2017 году нами был разработан и впервые применен протокол лекарственной коррекции ишемически-реперфузионного повреждения (ИРП) у донора с установленным диагнозом «смерть головного мозга» (ДСМ). Учитывая ограниченный временной интервал после процедуры диагностики смерти мозга, препарат «Тимоглобулин» (Sanofi Genzyme, Франция) вводился в организм донора в дозе 8 мг/кг внутривенно в течение 6 часов. Перед введением препарата и непосредственно перед началом холодовой перфузии выполнялся развернутый клинический анализ крови и биопсии трансплантатов почек. В исследуемую группу были включены 10 ДСМ (ср. возраст – 39,3 ± 4,4 года), которым вводился антитимоцитарный иммуноглобулин (АТГ), группой сравнения были 10 ДСМ (ср. возраст – 38,5 ± 4,3 года) без применения нового протокола. Донорские почки были пересажены 40 реципиентам (ср. возраст – 47,5 ± 4,3 года), которые также были разделены на 2 группы, в зависимости от полученного трансплантата (с АТГ и без АТГ). В центре органного донорства сформирован биобанк образцов от доноров различных категорий, в т. ч. с применением протокола терапевтической коррекции ИРП, и реципиентов для ретроспективной оценки эффективности применения ПКАТ.Результаты. По данным проведенной оценки результатов клинического анализа крови, в группе с введением АТГ наблюдалась устойчивая лейкопения (нейтропения и лимфопения) 1,46 ± 0,18 × 109/л. У 15 (75%) реципиентов почек, полученных от доноров с введением АТГ, наблюдалась немедленная функция трансплантата, в контрольной группе – у 10 (50%) реципиентов.Выводы. Полученные данные свидетельствуют о перспективности внедрения предложенного протокола в клиническую практику, что позволит улучшить качество получаемых трансплантатов, их пригодность к дальнейшей пересадке, увеличить срок функционирования трансплантата за счет элиминации лейкоцитов как фактора возникновения ИРП, предупреждения развития ранней трансплантационной нефропатии, увеличения «донорского пула» за счет использования доноров с расширенными критериями (ДРК)

Удовлетворенность качеством медицинской помощи: «всем не угодишь» или «пациент всегда прав»?

Patients’ evaluation of medical care is becoming more and more important due to expanding patient-centered care. For this purpose a complex index of patient satisfaction with healthcare is used. This parameter reflects the correspondence of actual healthcare services to patient’s expectations that were formed under the influence of cultural, social, economic factors, and personal experience of each patient. Satisfaction is a subjective parameter, thus, a grade of satisfaction is barely connected with quality of healthcare services itself. Moreover, medical organizations should always take into account specific features of each patient, since they can have an influence on customer attitude to medical services.This article comprises the review of publications studying determinants of patient satisfaction. In the course of the study, we analyzed data received by research teams from different countries.According to the review, we made some conclusions. First, determinants of patient satisfaction with healthcare can be divided in two groups. The first group of factors includes patients’ characteristics such as age, gender, ethnical and cultural features. However, researches from different countries revealed that there is a difference in the importance of factors belonging to this group and their influence on satisfaction of certain patient cohorts. The second group includes factors that belong to the process of healthcare services delivery and its organization. Moreover, it was found that patient satisfaction level is changing in a waveform. Thus, medical organization should not only try to increase patient satisfaction level but also maintain it. AS a result, it necessary to monitor patient satisfaction with healthcare services. That is why there is a distinct need for the development of a new tool or adaptation of existing instrument of satisfaction measurement, which would be unitized for all medical organizations in the Russian Federation В рамках реализации концепции пациент-ориентированного здравоохранения все большее значение приобретает оценка качества услуг медицинских организации с позиции пациента. С этой целью используется комплексный показатель удовлетворенности пациентов качеством медицинской помощи, который отражает степень соответствия реальных условий оказания медицинской помощи ожиданиям пациента, сформированным под влиянием социокультурных, экономических факторов, а также личного опыта каждого потребителя медицинских услуг. Показатель удовлетворенности является субъективным, при этом степень удовлетворенности не связана непосредственно с качеством медицинской помощи. Кроме того, необходимо всегда учитывать особенности пациента, его социально-культурный и экономический статус, которые могут оказывать влияние на отношение потребителя к полученным услугам.В данной статье был проведен обзор публикаций, посвященных вопросу факторов, оказывающих влияние на уровень удовлетворенности населения медицинской помощью. В ходе работы были проанализированы данные научных коллективов разных стран с участием различных групп населения.На основании обзора был сделан ряд выводов о том, что факторы, определяющие удовлетворенность пациентов, могут быть разделены на две группы. В первую группу входят факторы, являющиеся характеристиками непосредственно пациентов, такие как пол, возраст, этнические и культурные особенности. При этом исследователи в разных странах выявляют различную значимость факторов данной группы для конкретных групп населения и медицинских организаций. Вторую группу составляют факторы, относящиеся к процессу оказания медицинской помощи, ее организации и образуют группу модифицируемых факторов. Кроме того, отмечено, что изменение удовлетворенности пациентов носит волнообразный характер с подъемами и спадами, по этой причине целесообразно проводить политику поддержания определенного уровня удовлетворенности наравне с его увеличением. С этой целью необходимо осуществлять мониторинг уровня удовлетворенности пациентов, для чего требуется разработка нового или адаптация существующего опросника по оценке удовлетворенности, который был бы унифицированным для всех медицинских организаций Российской Федерации.

A critical appraisal of appendage disparity and homology in fishes

Fishes are both extremely diverse and morphologically disparate. Part of this disparity can be observed in the numerous possible fin configurations that may differ in terms of the number of fins as well as fin shapes, sizes and relative positions on the body. Here, we thoroughly review the major patterns of disparity in fin configurations for each major group of fishes and discuss how median and paired fin homologies have been interpreted over time. When taking into account the entire span of fish diversity, including both extant and fossil taxa, the disparity in fin morphologies greatly complicates inferring homologies for individual fins. Given the phylogenetic scope of this review, structural and topological criteria appear to be the most useful indicators of fin identity. We further suggest that it may be advantageous to consider some of these fin homologies as nested within the larger framework of homologous fin‐forming morphogenetic fields. We also discuss scenarios of appendage evolution and suggest that modularity may have played a key role in appendage disparification. Fin modules re‐expressed within the boundaries of fin‐forming fields could explain how some fins may have evolved numerous times independently in separate lineages (e.g., adipose fin), or how new fins may have evolved over time (e.g., anterior and posterior dorsal fins, pectoral and pelvic fins). We favour an evolutionary scenario whereby median appendages appeared from a unique field of competence first positioned throughout the dorsal and ventral midlines, which was then redeployed laterally leading to paired appendages.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/151971/1/faf12402_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/151971/2/faf12402.pd

Surface Enhanced Raman Spectroscopy of Lactoferrin Adsorbed on Silvered Porous Silicon Covered with Graphene

We registered surface enhanced Raman scattering (SERS) spectra of the human lactoferrin molecules adsorbed on a silvered porous silicon (por-Si) from 106–1018 M solutions. It was found that the por-Si template causes a negative surface potential of silver particles and their chemical resistivity to oxidation. These properties provided to attract positively charged lactoferrin molecules and prevent their interaction with metallic particles upon 473 nm laser excitation. The SERS spectra of lactoferrin adsorbed from 106 M solution were rather weak but a decrease of the concentration to 10-10 M led to an enormous growth of the SERS signal. This effect took place as oligomers of lactoferrin were broken down to monomeric units while its concentration was reduced. Oligomers are too large for a uniform overlap with electromagnetic field from silver particles. They cannot provide an intensive SERS signal from the top part of the molecules in contrast to monomers that can be completely covered by the electromagnetic field. The SERS spectra of lactoferrin at the 10-14 and 10-16 M concentrations were less intensive and started to change due to increasing contribution from the laser burned molecules. To prevent overheating the analyte molecules on the silvered por-Si were protected with graphene, which allowed the detection of lactoferrin adsorbed from the 10-18 M solution