Information-analytical assessment systems for perinatal outcomes and children's health status born by assisted reproductive technologies

Purpose: To integrate clinical databases based on the information and analytical systems of medical organizations (MO) and to evaluate outcomes and health of children born by assisted reproductive technologies (ART). Research methods: To form database by integrating information and analytical systems of the medical organizations. To search and unify the data by means of freeware relational database management system (DBMS) - MySQL. Results. A prototype application for the management and support of a unified clinical database to analyze and evaluate the outcomes of ART. To compare information from individual databases of MO one need to match fields in the form of unique personal records, field validation, processing of missing data. Significant (p <0.001) differences in gestational age and anthropometric data in the databases of medical organizations (76% of full-term children from the Automated System “Regional obstetric monitoring” (AS ROM) database compared with 18% according to the IS “Register of Children requiring Early Care”) were determined by the introduction of the conception of ART, along with the presence of perinatal risk factors in children. The created software can be used to create registers of medical organizations, as well as to support clinical decision-making in forecasting, modeling outcomes and children's health after ART, developing personalized treatment and rehabilitation programs. Conclusion. It is necessary to develop and implement information systems, to create ART registers on the basis of regional and national registers, to analyze the outcomes of the use of reproduction methods. © 2020 National Academy of Pediatric Science and Innovation. All rights reserved

Local conductivity of the (0001) surface of topological insulators based on Bi2Te3

Обнаружена возможность переключать проводимость контакта зонда с поверхностью с уменьшением сопротивления на пять и более порядков по величине. В отличие от локального эффекта на пленке, на микрочешуйке создаваемая область повышенной проводимости могла распространяться на всю ее поверхность.It has been found possible to switch the conductivity of the contact between the probe and the surface with decreasing resistance by five or more orders of magnitude. In contrast to the local effect on the film, on the micro flake, the created region of increased conductivity could propagate to the entire surface of the film

Malignant neoplasms associated with pregnancy

The purpose of the study is to estimate the incidence of malignant neoplasms associated with pregnancy at the population level.Цель исследования — оценка частоты встречаемости злокачественных новообразований, ассоциированных с беременностью на популяционном уровне

Spectroscopic and Mechanistic Studies of Heterodimetallic Forms of Metallo-β-lactamase NDM-1

In an effort to characterize the roles of each metal ion in metallo-β-lactamase NDM-1, heterodimetallic analogues (CoCo-, ZnCo-, and CoCd-) of the enzyme were generated and characterized. UV–vis, 1H NMR, EPR, and EXAFS spectroscopies were used to confirm the fidelity of the metal substitutions, including the presence of a homogeneous, heterodimetallic cluster, with a single-atom bridge. This marks the first preparation of a metallo-β-lactamase selectively substituted with a paramagnetic metal ion, Co(II), either in the Zn1 (CoCd-NDM-1) or in the Zn2 site (ZnCo-NDM-1), as well as both (CoCo-NDM-1). We then used these metal-substituted forms of the enzyme to probe the reaction mechanism, using steady-state and stopped-flow kinetics, stopped-flow fluorescence, and rapid-freeze-quench EPR. Both metal sites show significant effects on the kinetic constants, and both paramagnetic variants (CoCd- and ZnCo-NDM-1) showed significant structural changes on reaction with substrate. These changes are discussed in terms of a minimal kinetic mechanism that incorporates all of the data

Злокачественные новообразования, ассоциированные с беременностью: популяционное исследование

Introduction: Pregnancy-associated cancers are malignant neoplasms (MNs) diagnosed during pregnancy or within 12 months after delivery. The study aimed to evaluate the prevalence of pregnancy-associated cancers at the population level.Materials and methods: The population database was created from databases of two regional systems: the automated system Pregnancy Monitoring Program and the ONCOR system.Results: Overall, 357 female patients with pregnancy-associated cancers were identified. The incidence rate was 1.659 per 1,000 pregnancies. The most common MN localizations were cervix, breast, thyroid, and ovary. Most female patients were between 45 and 49 years of age. Stage IV breast cancer was identified in a large proportion of women undergoing delivery. Conversely, cervical and ovarian cancers were commonly diagnosed at early stages. The 1-year survival rate of patients with pregnancy-associated cancers was higher than in the entire cancer population.Conclusions: Pregnancy-associated cancers are still a complex and poorly understood issue that requires additional studies, disease-specific monitoring and treatment protocols.Введение: К злокачественным новообразованиям (ЗНО), ассоциированным с беременностью, относят ЗНО, выявленные во время беременности или в течение 12 месяцев после родов. Целью работы была оценка частоты встречаемости ЗНО, ассоциированных с беременностью, на популяционном уровне.Материалы и методы: Для формирования популяционной базы данных использовались информационные массивы из двух региональных систем: автоматизированной системы «Программа мониторинга беременных» и системы «ОНКОР».Результаты: ЗНО, ассоциированные с беременностью, были выявлены у 357 пациенток. Заболеваемость составила 1,659 на 1000 беременностей. Наиболее распространенными локализациями ЗНО были шейка матки, молочная железа, щитовидная железа, яичник. Наибольшая заболеваемость пришлась на возрастную группу 45–49 лет. В случае рака молочной железы у женщин на фоне родов заболевание часто выявлялось на IV стадии. При ЗНО шейки матки и яичников, наоборот, отмечен высокий процент начальных стадий. Сравнение 1‑годичной выживаемости у больных с ЗНО, ассоциированными с беременностью, и в общей популяции показало, что выживаемость при беременности была выше.Выводы: Ассоциирование ЗНО с беременностью остается сложным и малоизученным вопросом, требующим проведения дополнительных исследований и формирования протоколов наблюдения и лечения по каждой нозологии

Pressure-induced amorphous-to-amorphous configuration change in Ca-Al metallic glasses

Pressure-induced amorphous-to-amorphous configuration changes in Ca-Al metallic glasses (MGs) were studied by performing in-situ room-temperature high-pressure x-ray diffraction up to about 40 GPa. Changes in compressibility at about 18 GPa, 15.5 GPa and 7.5 GPa during compression are detected in Ca80Al20, Ca72.7Al27.3, and Ca66.4Al33.6 MGs, respectively, whereas no clear change has been detected in the Ca50Al50 MG. The transfer of s electrons into d orbitals under pressure, reported for the pressure-induced phase transformations in pure polycrystalline Ca, is suggested to explain the observation of an amorphous-to-amorphous configuration change in this Ca-Al MG system. Results presented here show that the pressure induced amorphous-to-amorphous configuration is not limited to f electron-containing MGs

Intermediate-Valence Tautomerism in Decamethylytterbocene Complexes of Methyl-Substituted Bipyridines

Multiconfigurational, intermediate valent ground states are established in several methyl-substituted bipyridine complexes of bispentamethylcyclopentadienylytterbium, Cp*{sub 2} Yb(Me{sub x}-bipy). In contrast to Cp*{sub 2} Yb(bipy) and other substituted-bipy complexes, the nature of both the ground state and the first excited state are altered by changing the position of the methyl or dimethyl substitutions on the bipyridine rings. In particular, certain substitutions result in multiconfigurational, intermediate valent open-shell singlet states in both the ground state and the first excited state. These conclusions are reached after consideration of single-crystal x-ray diffraction (XRD), the temperature dependence of x-ray absorption near-edge structure (XANES), extended x-ray absorption fine-structure (EXAFS), and magnetic susceptibility data, and are supported by CASSCF-MP2 calculations. These results place the various Cp*{sub 2}Yb(bipy) complexes in a new tautomeric class, that is, intermediate-valence tautomers