[The mobile applications developed for self-control arterial pressure: systematic review and content-analysis].

The high prevalence of arterial hypertension and necessity for permanent monitoring of blood pressure requires implementation of new methods of interaction between patient and physician in order to optimize medical care. The purpose of the study was to describe and to evaluate functional possibilities of Russian-speaking mobile applications utilized in collecting blood pressure readings to monitor efficiency of arterial hypertension treatment. The study was carried out in June 2023 in three mobile application stores: Apple Store, Google Play and RuStore. The Russian-speaking applications applied to hypertension self-controlling were considered. For final analysis 45 mobile applications were selected out of 380 applications tested. The most common functions, besides fixing blood pressure levels, were ability of fixing pulse rate (n=41), weight (n=21), sugar level (n=10), blood oxygen saturation (n=8), cholesterol (n=6), rhythm disturbances (n=6) and body temperature (n=5). Additionally, applications made it possible to add tags (n=33), to view statistics (n=41) (including average blood pressure (n=8), pulse pressure (n=9), average daily blood pressure (n=6) and to compare data for different periods of time (n=6), to filter data by tags (n=17), to export statistics (n=32). The 6 applications also supported technology of wireless reception of blood pressure and emergency data. The educational information about blood pressure was enclosed in 17 applications and dietary advice in 12 applications. The content included basic information about blood pressure, treatment, diet, and physical activity. No clinical studies that proved efficiency or inefficiency of analyzed applications were found. None of descriptions comprised both involvement of physicians in development of application and use of clinical recommendations. The results demonstrated large choice of applications used in recording blood pressure with purpose of hypertension self-control. Besides, mobile applications contain various functions and their combinations that can help patient to control blood pressure more effectively. The physicians are to be aware of capabilities of mobile applications developed with purpose of monitoring health of patients.

[Outpatient urodynamic monitoring in patients with BPH: world and russian experience].

Outpatient urodynamic monitoring (AUM) - registration of the patients urination parameters for a certain time (for example, during the day), which is carried out in natural conditions for him. Monitoring allows you to identify hidden or periodically occurring (circadian) changes, which are not always possible to record with a single study. The research was searched in the PubMed and Elibrary.ru databases using the keywords "home uroflowmetry", "outpatient urodynamic examination", "outpatient urodynamic monitoring", "outpatient uroflowmetric monitoring". The difficulties in performing AUM lie not only in the hardware (the presence of a portable device, minimally invasive or non-invasive research, software that guarantees the storage and transmission of data), but also the difficulties associated with teaching patients and overcoming conservatism on the part of medical personnel. Today, there are several urodynamic devices and uroflowmeters designed for research at home. Outpatient (home) urodynamic monitoring is one of the most promising studies for implementation in everyday clinical practice in the provision of medical care to patients with urination disorders on the background of benign prostatic hyperplasia. The integration of home uroflowmetric monitoring into the eHealth system, of course, remains an inevitable trend in the development of modern healthcare.

[The methodology of remote monitoring of patients with urinary stone disease: development and primary approbation].

INTRODUCTION: Urolithiasis is a clinically and socially significant disease that requires long-term follow-up in order to prevent stone recurrence. Currently, telemedicine consultations in the "patient-doctor" format are actively used in urology, however, the methodology, technological base and assessment of the efficiency of remote monitoring of the patient's health status are virtually not developed. AIM: To provide basics for the methodology of remote monitoring of patients with urolithiasis for detailed comprehensive examination and comprehensive metaphylaxis of recurrent stone formation. MATERIALS AND METHODS: A comprehensive clinical examination was carried out on the basis of the Institute of Urology and Human Reproductive Health, the National Medical Research Center on Urology and the Institute of Digital Medicine of FGAOU VO I.M. Sechenov First Moscow State Medical University during the period from 1st February to 1st December 2020. A total of 30 patients with urolithiasis were included in the study. Remote monitoring of health status was carried out using a portable analyzer "ETTA AMP-01" on dipstick. Data transmission was performed through a mobile application, which is part of the "NetHealth" information system (www.nethealth.ru). The values and frequency of urine tests performed by the patient independently, as well as patient satisfaction and adherence to the monitoring technology were evaluated. Analytical, clinical, sociological and statistical research methods were used. RESULTS: By systematizing published data and our own clinical experience, we have developed a model for remote monitoring of the health status of patients with urinary stone disease, which included a system of indications and contraindications, a program and an order of the monitoring, as well as a basic technological solution (medical devices and a hardware-software complex). In this study, median duration of remote monitoring was 168 days. According to the questionnaire, general positive assessment and desire to continue telemonitoring was seen in 100.0% of cases, while 86.7% of patients positively evaluated the technical accessibility and reliability of the system and 93.3% considered the quality and availability of medical care as high. CONCLUSION: A methodology for remote monitoring of patients with urolithiasis has been developed with the aim of preventing recurrent stone formation. There was a high adherence of patients to remote monitoring with a tendency to decrease in values after 4 and 6 months. During these periods, it is necessary to carry out routine consultations by the physician who appointed remote monitoring in order to continue the follow-up program. There was a high satisfaction of patients with remote monitoring, and they pointed out the quality and availability of urological care owing to telemedicine technologies.

Levels of the endosymbiont Rickettsia in the whitefly Bemisia tabaci are influenced by the expression of vitellogenin.

Bacterial endosymbionts play essential roles in the biology of their arthropod hosts by interacting with internal factors in the host. The whitefly Bemisia tabaci is a worldwide agricultural pest and a supervector for more than 100 plant viruses. Like many other arthropods, Be. tabaci harbours a primary endosymbiont, Porteira aleyrodidarum, and an array of secondary endosymbionts that coexist with Portiera inside bacteriocyte cells. Unlike all of the other secondary symbionts that infect Be. tabaci, Rickettsia has been shown to be an exception by infecting insect organs and not colocalizing with Portiera, and has been shown to significantly impact the insect biology and its interactions with the environment. Little is known about the molecular interactions that underlie insect-symbiont interactions in general, and particularly Be. tabaci-Rickettsia interactions. Here we performed transcriptomic analysis and identified vitellogenin as an important protein that influences the levels of Rickettsia in Be. tabaci. Vitellogenin expression levels were lower in whole insects, but higher in midguts of Rickettsia-infected insects. Immunocapture-PCR assay showed interaction between vitellogenin and Rickettsia, whereas silencing of vitellogenin resulted in nearly complete disappearance of Rickettsia from midguts. Altogether, these results suggest that vitellogenin plays an important role in influencing the levels of Rickettsia in Be. tabaci.

[Correlation between the receptor specificity of pandemic influenza A (H1N1)pdm09 virus strains isolated in 2009-2011 and the structure of the receptor-binding site and the probability of fatal primary viral pneumonia].

The receptor specificity (RS) of pandemic influenza A(H1N1) pdm09 virus strains deposited into the State Collection of Viruses of the Russian Federation, D. I. Ivanovsky Research Institute of Virology, Ministry of Health and Social Development of Russia, in the 2009-2010 and 2010-2011 epidemic seasons to a panel of 9 sialoglycopolymers (SGP). The strains were divided into 3 groups according to the W(3/6) index proposed by the authors, which was equal to the amount of reactivities to unbranched alpha2-3-SGP to that of reactivities to unbranched alphal-6-SGP: W(3/6) < or = 1.0; 1.0 < W(3/6) < or = 1.5. The W(3/6) < or = 1.5 group showed a predominance of a2-3-RS, attended by the high incidence of fatal primary viral pneumonias (FPVP) (60.0%) and amino acid replacements in the HA1 receptor-binding site (RBS) (80.0%): D222{G, N} and Q223R. The 1.0 < W(3/6) < or = 1.5 group was characterized by mixed alpha2-3/alpha2-6-RS with the incidence of FPVP (29.7%) and amino acid replacements in the HA1 RBS (40.5%) (D222{G, N, V} and Q223), respectively. In the W(3/6) < or = 1.0 group, alpha2-6-RS was prevalent, FPVPs were absent and amino acid replacements in HA1 RBS (D222{G, E}) were seen only in 6.0% of cases. The number of strains with increased specificity to alpha2-3-sialosides increased in the 2010-2011 epidemic season as compared to the previous season. With their further spread among the population, there may be a rise in cases of severe primary viral pneumonias with possible fatal outcomes, which can be, however, accompanied by a decrease in the capacity of mutants to air-dropwise transmission.

[Peculiarities of exposure to polychlorinated biphenyls (PCBS) in the indigenous population of the coastal and mainland Chukotka].

The indigenous people of coastal areas show a low percentage of low chlorinated and dioxin-like PCB congeners (as opposed to mainland aborigines) with a significant proportion of the "triad" in the amount of PCBs. 5 years after the first survey the ratio of the analyzed groups of PCB congeners in the blood of parturients - mothers, as well as in the fetus - child in the coastal Chukotka remained unchanged, indicating that the equal share rate of clearance-accumulation of congeners and is almost equal share content of PCB congeners in the mother and child. The average duration of half-lives of PCB congeners (#105-187) from the mother's body was 4-6 years (for the sum of PCBs - 5.7 years), which is broadly consistent with the results of foreign studies. The composition of PCB congeners in the blood of the continental population significantly differs from those in the food, while coastal residents--similar to the composition of PCBs in marine mammals. The content of PCB congeners in the domestic sources of pollution has no resemblance to the composition of PCBs in the blood of the natives.

[Specificity of exposure of the indigenous dwellers of coastal and inland Chukotka to dichlorodiphenyltrichloroethane].

In the indigenous dwellers of coastal Chukotka, blood DDT levels are 1.5-2 times higher than those of continental areas, which is due to the higher global DDT pollution of a sea food chain. The blood levels of 4,4-DDE in the reproductive-age women of coastal Chukotka are comparable to those in other Russian Arctic regions, slightly lower than in Greenland, but essentially higher than in Canada, Alaska and Scandinavian countries. Blood DDE/DDT ratio in the coastal indigenous dwellers is almost twice higher than that in the inland inhabitants, which is indicative of the "older" exposure of coastal people to DDT. There was an about equal (70-75%) decrease in 4,4-DDE and 4,4-DDT levels with a practically invariable ratio (12-15) and a nearly equal elimination half-life period (about 3.5 years) in the mothers of coastal Chukotka 5 years after the first examination. The elevated 4,4-DDE/4,4-DDT ratios in the tissues of sea mammals generally correspond to higher isomer ratios in the blood of coastal natives and relatively low 4,4-DDE/4,4-DDT ratios in the venison, fowl, and fish predetermine lower ratios in the blood of inland inhabitants. The extremely low of DDE/DDT ratio (0.4) in the washouts and scrapes from the kitchen walls of dwellings are conclusively associated with the recent application of DDT as a household insecticide.

[The blood levels of stable toxic substances in the native residents of costal Chukotka and their children's infection morbidity].

A considerable reduction in the blood levels of stable organic pollutants (SOP) has been noted in the mothers of native ethnicities of costal Chukotka during a 5-year period, which may be accounted for by certain purification of food chains, altered diet with emphasis on delivered products, and long-term breastfeeding. The elevated level of SOP in children from birth to age 5 years is explained by long-term breastfeeding and the early consumption of local foods. The content of heavy metals (mercury and lead) in both maternal and children's blood has unchanged for 5 years. The children's infection morbidity has been quite high; at the same time no associations of the children's blood levels of toxic substances with the incidence of infectious diseases have been found. However, two children maximally exposed to SOP and metals have been observed to be rarely susceptible to diseases.

[Reduction of a risk of the deleterious effects of persistent toxic substances on the health of the far north population].

The paper presents the general principles and procedure of the development and implementation of measures to decrease and prevent environmental pollution with persistent toxic substances (PTS) in the Russian Arctic and, accordingly, to reduce a risk of the deleterious effects of PTS on human health. Based on the results of a study of PTS in the Russian Arctic (from the Kola Peninsula to Chukotka), the authors first systematized the basic lines and actions and formulated specific measures to reduce the North population's exposure to PTSs, such as polychlorinated biphenyls, organic chlorine pesticides (dichlorodiphenyltrichloroethane, hexachlorocyclohexane, hexachlorobenzene, etc.), and heavy metals (mercury, lead, cadmium). A package of measures is aimed at maximally reducing the presence of PTS-containing objects and materials in the north (via detection, collection, and extermination), at neutralizing the soils in settlement lands, at setting up safe water consumption systems, at organizing effective control over the safe use of chemicals and the levels of PTS in raw food materials and foodstuffs, and at working out recommendations on safe procedures for food purchase, storage, and cooking.

[Blood heavy metals in women of indigenous ethnic groups in the Far North].

The paper presents the results of an investigation of the blood levels of mercury, lead, and cadmium in women of indigenous ethnic groups in the Far North. A certain correlation was found between the higher incidence of some poor pregnancy outcomes and fetal maldevelopment upon increased maternal exposure to heavy metals. The found correlations were statistically insignificant. There was no significant association of female exposure to heavy metals with menstrual irregularities and the sex ratio of neonates.

Nutrition of Chukotka Native children.

We estimated nutrient and food intakes of adolescents aged 14 to 17 who inhabit the coastal and tundra zones of the Chukotka Autonomous Region, Russia, and developed approaches to improving their diet. We reassessed the dietary intakes of Native (n = 162) and non-Native (n = 155) adolescents of both sexes. We found that mean energy and nutrient intakes (protein, fat, carbohydrates) among schoolchildren were similar in different ethnic and sex groups. The diet of the subjects studied is high in sugar (18-19% of energy) and has an unfavorable fat composition, with saturated fatty acids (SFAs) contributing 14-15% of energy, and polyunsaturated fatty acids (PUFAs) contributing 5-6% of energy. Our results demonstrate that the children's diet approaches that of "Western society" to a greater extent than that of adults. A program on nutrition based on the national government project "Children of the North" has been developed at the Institute of Internal Medicine in collaboration with the Chukotka Sanitary and Epidemiology Supervision Services. This program includes the list of food products recommended for children. Some ecological factors and ethnic idiosyncrasies are considered.

[Isolation of parahemolytic vibrions from persons with acute gastrointestinal diseases]. / O vydelenii paragemoliticheskikh vibrionov ot liudei s ostrymi zheludochno-kishechnymi zabolevaniiami

Galophilic vibrios were for the first time in the Soviet Union isolated from the patients with gastrointestinal diseases in Novorossiisk during the summer-autumn period of 1973. The greatest number of strains of the parahemolytic vibrios was isolated in August and September, during intensive fishing season, from the patients in whom the disease usually developed 6 to 12 hours after eating the sea fish. The parahemolytic vibrios isolated from the patients were typical by all signs and produced a marked hemolysis on the Wagatsuma medium. The halophilic vibrios are inhabitants of the Black Sea. During the years of 1972-1973 there were isolated 109 strains of V. paraheamolyticus and 133 strains of V. alginolyticus from the sea water and various hydrobionts.

[Methodological approaches to complex assessment of health impairment due to unfavorable factors in the environment]. / Metodicheskie podkhody k kompleksnoi otsenke ushcherba zdorov'iu , nastupivshego pod vliianiem neblagopriiatnykh faktorov sredy obitaniia.

The paper is devoted to an urgent problem of estimating human health damage as a result of violating hygienic regulations. The problem should be solved by using multifactor evaluation of physical, mental and social health of population and by creating National Safety (Risk) Register.

[Epidemiological evaluation of long-term effects of hazardous substances]. / Epidemiologicheskaia otsenka otdalennykh posledstvii vozdeistviia vrednykh khimicheskikh veshchestv.

The article deals with epidemiologic evaluation of long-term chemical effects. The authors stress difficulties in setting the "cause-effect" relationships and define some typical mistakes in such research.

[The spread of the principal socially important parasitic disease on the territory of the Chukot Autonomous Okrug (ChAO)]. / O rasprostranenii osnovnykh sotsial'no znachimykh parazitarnykh boleznei na territorii Chukotskogo Avtonomnogo Okruga (ChAO).

The paper provides the examination findings of helminthiases in the population of the town of Anadyr, the settlements of Kanchalan, Krasneno, and in the reindeer-breeding teams of the Anadyr District, CAD. The children infected with enterobiasis were shown to amount to 15.1 to 22.9%, diphyllobothriasis was detected in 12.9 - 33.7% of the examinees. Single cases of ascariasis were revealed. Analysis of 232 cases with echinococcosis demonstrates that the infection is prevalent over the whole Chukotka territory. Infection with Echinococcus multilocularis is more common in the indigenous population in the north-east of the District and that with Echinococcus granulosus in the central and northern regions. High extensive and intensive parasitic contamination rates of environmental objects, such as soil, sewage, household appliances, fish, etc., were noted, indicating a constant risk for Chukotka population's infection with parasites.

A high-efficiency spin-resolved photoemission spectrometer combining time-of-flight spectroscopy with exchange-scattering polarimetry.

We describe a spin-resolved electron spectrometer capable of uniquely efficient and high energy resolution measurements. Spin analysis is obtained through polarimetry based on low-energy exchange scattering from a ferromagnetic thin-film target. This approach can achieve a similar analyzing power (Sherman function) as state-of-the-art Mott scattering polarimeters, but with as much as 100 times improved efficiency due to increased reflectivity. Performance is further enhanced by integrating the polarimeter into a time-of-flight (TOF) based energy analysis scheme with a precise and flexible electrostatic lens system. The parallel acquisition of a range of electron kinetic energies afforded by the TOF approach results in an order of magnitude (or more) increase in efficiency compared to hemispherical analyzers. The lens system additionally features a 90 degrees bandpass filter, which by removing unwanted parts of the photoelectron distribution allows the TOF technique to be performed at low electron drift energy and high energy resolution within a wide range of experimental parameters. The spectrometer is ideally suited for high-resolution spin- and angle-resolved photoemission spectroscopy (spin-ARPES), and initial results are shown. The TOF approach makes the spectrometer especially ideal for time-resolved spin-ARPES experiments.