[Comparative evaluation of transscleral laser exposure in anatomical experiment]. / Sravnitel'naya otsenka lazernogo transskleral'nogo vozdeistviya v usloviyakh anatomicheskogo eksperimenta.

PURPOSE: This study comparatively analyzed the morphology of eye tissues after laser exposure using the latest generation of transscleral laser techniques - micropulse transscleral cyclophotocoagulation (MP-TSCPC) and laser activation of scleral hydropermeability (LASH) - in an anatomical experiment. MATERIAL AND METHODS: The study used pulsed-periodic radiation of an Er-glass fiber laser (λ=1.56 µm) and radiation of a diode laser (λ=0.81 µm) in the micropulse mode. A comparative morphological evaluation of histological preparations of target scleral and ciliary body (CB) tissues was performed with the study of laser-induced changes occurring after LASH and MP-TSCPC. RESULTS: The study of histological preparations obtained after MP-TSCPC and LASH did not reveal any noticeable signs of an inflammatory reaction or significant destructive changes. There were no signs of pronounced coagulative changes in the form of disorganization of connective and muscle tissue in the exposure area. At the same time, MP-TSCPC was accompanied by thinning and discontinuity of the CB pigment epithelium in the projection of its flat part and expansion of the gaps between the anterior connective tissue fibers fixing the CB to the sclera, which is likely a factor contributing to uveoscleral outflow. After LASH, in the irradiated areas at the level of the outer layers of the sclera (¾ of its thickness) located in the projection of the flat part of the ciliary body, multiple slit-like cavities and enlargements (stretching) of interfiber spaces were revealed with simultaneous compaction of the inner part of the sclera (» of its thickness). CONCLUSION: The identified morphological changes may indicate certain differences in the mechanisms of intraocular pressure (IOP) reduction after MP-TSCPC and LASH. The results of this study suggest that the enhancement of uveoscleral outflow of intraocular fluid and the hypotensive effect after MP-TSCPC may be associated with laser-induced expansion of the interspaces between the anterior connective tissue fibers of the CB in the suprachoroidal space. With LASH, the possible mechanism of lowering IOP may be related rather to an increase in transscleral filtration due to the appearance of slit-like interfiber spaces in the sclera, caused by local contraction of scleral fibers in the area of laser exposure. The absence of pronounced destructive changes at the histological level indicates the gentle nature of both laser techniques and the possibility of expanding the indications for the use of LASH in the treatment of glaucoma, including at its earlier stages.

Intense charge transfer plasmons in golden nanoparticle dimers connected by conductive molecular linkers.

Golden nanoparticle dimers connected by conjugated molecular linkers 1,2-bis(2-pyridyl)ethylene are produced. The formation of stable dimers with 22 nm diameter nanoparticles is confirmed by transmission electron microphotography. The possibility of charge transfer through the linkers between the particles in the dimers is shown by the density functional theory calculations. In addition to localized plasmon resonance of solitary nanoparticles with a wavelength of 530 nm, the optical spectra exhibit a new intense absorption peak in the near-infrared range with a wavelength of ∼780 nm. The emergent absorption peak is attributed to the charge-transfer plasmon (CTP) mode; the spectra simulated within the CTP developed model agree with the experimental ones. This resonant absorption may be of interest to biomedical applications due to its position in the so-called transmission window of biological tissues. The in vitro heating of CTP dimer solution by a laser diode with a wavelength of 792 nm proved the efficiency of CTP dimers for achieving a temperature increase of ΔT = 6 °C, which is sufficient for hyperthermia treatment of malignant tumors. This indicates the possibility of using hyperthermia to treat malignant tumors using the material we synthesized.

Early change in apparent diffusion coefficient as a predictor of response to neoadjuvant androgen deprivation and external beam radiation therapy for intermediate- to high-risk prostate cancer.

AIM: To determine the role of serial apparent diffusion coefficient (ADC) as a biomarker for response to neoadjuvant androgen deprivation therapy (nADT) followed by external beam radiation therapy (EBRT) in intermediate- to high-risk prostate cancer (PCa) patients. METHODS: This Health Insurance Portability and Accountability Act (HIPAA)-compliant, institutional review board (IRB)-approved prospective study included 12 patients with intermediate- to high-risk PCa patients prior to nADT and EBRT, who underwent serial serum prostate-specific antigen (PSA) and multiparametric prostate magnetic resonance imaging (mpMRI) at baseline (BL), 8-weeks after nADT initiation (time point [TP]1), 6-weeks into EBRT delivery (TP2), and 6-months after nADT initiation (TP3). Tumour volume (tVOL) and tumour and normal tissue ADC (tADC and nlADC) were determined at all TPs. tADC and nlADC dynamics were correlated with post-treatment PSA using Pearson's correlation coefficient. Paired t-tests compared pre/post-treatment ADC. RESULTS: There was a sequential decrease in PSA at all TPs, reaching their lowest values at TP3 post-treatment completion. Mean tADC increased significantly from baseline to TP1 (917.8 ± 107.7 × 10-6 versus 1033.8 ± 139.3 × 10-6 mm2/s; p<0.01), with no subsequent change at TP2 or TP3. Both percentage and absolute change in tADC from BL to TP1 correlated with post-treatment PSA (r=-0.666, r=-0.674; p=0.02). Post-treatment PSA in good responders (<0.1 ng/ml) versus poor responders (≥ 0.1 ng/ml) was associated with a greater increase in tADC from BL to TP1 (169.2 ± 122.4 × 10-6 versus 22.9 ± 75.5 × 10-6 mm2/s, p=0.03). CONCLUSION: This pilot study demonstrates the potential for early ADC metrics as a biomarker of response to nADT and EBRT in intermediate to high-risk PCA.

A hybrid quantum-classical theory for predicting terahertz charge-transfer plasmons in metal nanoparticles on graphene.

Metal nanoparticle (NP) complexes lying on a single-layer graphene surface are studied with a developed original hybrid quantum-classical theory using the Finite Element Method (FEM) that is computationally cheap. Our theory is based on the motivated assumption that the carrier charge density in the doped graphene does not vary significantly during the plasmon oscillations. Charge transfer plasmon (CTP) frequencies, eigenvectors, quality factors, energy loss in the NPs and in graphene, and the absorption power are aspects that are theoretically studied and numerically calculated. It is shown the CTP frequencies reside in the terahertz range and can be represented as a product of two factors: the Fermi level of graphene and the geometry of the NP complex. The energy losses in the NPs are predicted to be inversely dependent on the radius R of the nanoparticle, while the loss in graphene is proportional to R and the interparticle distance. The CTP quality factors are predicted to be in the range ∼10-100. The absorption power under CTP excitation is proportional to the scalar product of the CTP dipole moment and the external electromagnetic field. The developed theory makes it possible to simulate different properties of CTPs 3-4 orders of magnitude faster compared to the original FEM or the finite-difference time domain method, providing possibilities for predicting the plasmonic properties of very large systems for different applications.

[Role of Mitochondria in Intestinal Epithelial Barrier Dysfunction in Inflammatory Bowel Disease].

Inflammatory bowel disease (IBD) is widespread in industrial countries with every 20th citizen being affected. Dysregulation of the epithelial barrier function is considered to play a key role in IBD. Permeability of the intestinal epithelium depends mostly on its self-renewal potential and the condition of intercellular junctions. Mitochondria are involved in regulating various intracellular processes in addition to their energy function. Recent data implicate mitochondria in intestinal epithelial barrier regulation and IBD. Mitochondrial dysfunction is possibly one of the factors that underlie the structural abnormalities of tight junctions and the cytoskeleton in intestinal epithelial cells and decrease the self-renewal capacity of the epithelium. The barrier function of the intestinal epithelium is consequently distorted, and IBD develops. The mechanisms of these processes are still unclear and require further research.

Measurement of polarization observables T, P, and H in π0 and η photoproduction off quasi-free nucleons.

The target asymmetry T, recoil asymmetry P, and beam-target double polarization observable H were determined in exclusive π0 and η photoproduction off quasi-free protons and, for the first time, off quasi-free neutrons. The experiment was performed at the electron stretcher accelerator ELSA in Bonn, Germany, with the Crystal Barrel/TAPS detector setup, using a linearly polarized photon beam and a transversely polarized deuterated butanol target. Effects from the Fermi motion of the nucleons within deuterium were removed by a full kinematic reconstruction of the final state invariant mass. A comparison of the data obtained on the proton and on the neutron provides new insight into the isospin structure of the electromagnetic excitation of the nucleon. Earlier measurements of polarization observables in the γp→π0p and γp→ηp reactions are confirmed. The data obtained on the neutron are of particular relevance for clarifying the origin of the narrow structure in the ηn system at W=1.68GeV. A comparison with recent partial wave analyses favors the interpretation of this structure as arising from interference of the S11(1535) and S11(1650) resonances within the S11-partial wave.

SWAP and Fredkin gates for OAM optical beams via the sandwich of anisotropic optical fibers.

We study the propagation of circularly-polarized optical vortices of higher order topological charges ℓ ≥ 2 in a sandwich of multihelical - anisotropic - multihelical fibers on the basis of the Jones formalism for modes with orbital angular momentum. We demonstrate that such a system can operate as the all - fiber two - bit SWAP as well as universal tree - bit controlled-SWAP (Fredkin) gates over states of optical vortices, in which the mode radial number carries the control bit, while circular polarization and topological charge are the controlled bits.

[Prospects for development of laparoscopic surgery in the Central Federal District of the Russian Federation]. / O perspektive razvitiya laparoskopicheskoi khirurgii v Tsentral'nom federal'nom okruge Rossiiskoi Federatsii.

OBJECTIVE: To analyze the achievements of laparoscopic surgery in the Central Federal District of Russia and outline perspective trends for further application. MATERIAL AND METHODS: The study included adult patients with abdominal surgical diseases hospitalized in general surgical departments of the Central Federal District between 2014 and 2021. We analyzed the prevalence of elective and emergency laparoscopic surgeries. Incidence and results of laparoscopic interventions between 2018 and 2021 were estimated considering primary statistical data presented in the annual collections of the Chief Surgeon of the Ministry of Health of Russia «Surgical care in the Russian Federation¼. RESULTS: The absolute number of laparoscopic surgeries in the Central Federal District increased from 23.686 to 80.489 (by 3.4 times) between 2014 and 2021. The annual number of elective laparoscopic surgeries exceeded the number of emergency ones up to 2019. In 2020-2021, this situation changed in favor of emergency abdominal procedures. Laparoscopic surgeries are the most common for in acute cholecystitis (71.06-81.10% of all laparoscopic interventions annually) and acute appendicitis (46.85-55.60%). In 2020 and 2021, the absolute number of laparoscopic appendectomies exceeded the number of laparoscopic cholecystectomies. These values are lower for perforated ulcers (15.44-20.39%) and acute pancreatitis (32.40-36.71%). Laparoscopic operations are rare for acute intestinal obstruction, strangulated hernia and ulcerative gastroduodenal bleeding. In elective surgery, high availability of laparoscopic surgeries was noted in patients with cholelithiasis (89.40-93.78%), hiatal hernia (62.12-77.27%) and adrenal gland diseases (64.23-87.25%). The most intensive increment of availability (by 2.4 times) was noted for inguinal hernia from minimum level (10.98%) in 2018 to 26.00% in 2021. Mortality after some laparoscopic operations decreased in comparison with laparotomy by 12-45 times (2018-2021). However, this aspect and results of laparoscopic surgeries in case of delayed hospitalization require additional study. CONCLUSION: Analysis of laparoscopic surgery showed the timeliness of beginning and development of this direction In Russia. The prospect of further development of laparoscopic surgery for abdominal diseases is determined by modern trends. These are increase in the number of laparoscopic operations for acute appendicitis, acute cholecystitis and perforated ulcers, as well as higher number of early (after admission) operations.

Preparation of a Single-Cell Suspension from Tumor Biopsy Samples for Single-Cell RNA Sequencing.

An essential requirement for single-cell RNA sequencing in cancer is the preparation of high-quality single-cell suspensions from the tumor tissue. In this work, various methods of dissociation of tumor biopsy specimens were analyzed and developed to obtain a cell suspension with at least 80% viability. It was found that the optimal conditions for sample preparation are mechanical dissociation followed by incubation with a collagenase/hyaluronidase mixture with addition of DNAase I for 60 min. Thus, we optimize the approach for preparing single-cell suspensions from the tumor biopsy tissue for single-cell RNA sequencing.

[Enteral nutrition in the treatment of acute pancreatitis]. / Enteral'noe pitanie v lechenii ostrogo pankreatita.

The review presents literature data on enteral nutrition in the treatment of acute pancreatitis. The authors provide pathophysiological substantiations of the need for nutritional support in patients with various forms of acute pancreatitis and basic principles of enteral nutrition in this disease. The results of numerous studies evaluating the outcomes of enteral nutrition are presented. These data indicate advisability of early enteral nutrition in acute pancreatitis because this approach reduces systemic inflammatory response, risk of bacterial translocation and purulent-septic complications, improves treatment outcomes.

[History of congresses of surgeons in Russia (1900-2022)]. / Istoriya s"ezdov khirurgov Rossii (1900­2022).

The authors describe a history of surgical congresses in the Russian Empire, the USSR and the Russian Federation from the I Congress of Russian Surgeons held on December 28-30, 1900 in Moscow in the building of the Moscow Meeting of Doctors to the XLVIII (XIV) Congress of Surgeons of Russia held on November 25-27, 2022 in Moscow in the hotel «Cosmos¼. The time and place of congresses, as well as chairmen are named. The main issues are listed. Scientific issues of congresses between 1900 and 1986 are summarized in tables. The authors present a brief history of Russian surgical societies including the current Russian Society of Surgeons. Surgical forums of the 21st century are considered in detail (Congresses of Surgeons of Russia, National Surgical Congresses, All-Russian Surgical Forums). Finally, the authors came to conclusion that 55 surgical forums have been held in Russia for more than 120 years. Surgeons presented all aspects of surgery in Russia. Their issues are essentially the history of Russian surgery, and their works are sources for analysis of the past and present of Russian surgery.

Insight into the Temperature-Dependent Canting of 4f Magnetic Moments from 4f Photoemission.

The orientation of the 4f moments offers an additional degree of freedom for engineering the spin-related properties in spintronic nanostructures of lanthanides. Yet, precise monitoring of the direction of magnetic moments remains a challenge. Here, on the example of the antiferromagnets HoRh2Si2 and DyRh2Si2, we investigate the temperature-dependent canting of the 4f moments near the surface. We demonstrate that this canting can be understood in the framework of crystal electric field theory and the exchange magnetic interaction. Using photoelectron spectroscopy, we disclose subtle but certain temperature-dependent changes in the line shape of the 4f multiplet. These changes are directly linked to the canting of the 4f moments, which is different for the individual lanthanide layers near the surface. Our results illustrate the opportunity to monitor the orientation of the 4f-moments with high precision, which is essential for development of novel lanthanide-based nanostructures, interfaces, supramolecular complexes, and single-molecule magnets for various applications.

Hybrid quantum-classical machine learning for generative chemistry and drug design.

Deep generative chemistry models emerge as powerful tools to expedite drug discovery. However, the immense size and complexity of the structural space of all possible drug-like molecules pose significant obstacles, which could be overcome with hybrid architectures combining quantum computers with deep classical networks. As the first step toward this goal, we built a compact discrete variational autoencoder (DVAE) with a Restricted Boltzmann Machine (RBM) of reduced size in its latent layer. The size of the proposed model was small enough to fit on a state-of-the-art D-Wave quantum annealer and allowed training on a subset of the ChEMBL dataset of biologically active compounds. Finally, we generated 2331 novel chemical structures with medicinal chemistry and synthetic accessibility properties in the ranges typical for molecules from ChEMBL. The presented results demonstrate the feasibility of using already existing or soon-to-be-available quantum computing devices as testbeds for future drug discovery applications.

Topological Faraday Effect for Optical Vortices in Magnetic Films.

Here we experimentally demonstrate the topological Faraday effect-the polarization rotation caused by the orbital angular momentum of light. It is found that the Faraday effect of the optical vortex beam passing through a transparent magnetic dielectric film differs from the Faraday effect for a plane wave. The additional contribution to the Faraday rotation depends linearly on the topological charge and radial number of the beam. The effect is explained in terms of the optical spin-orbit interaction. These findings underline the importance of using the optical vortex beams for studies of magnetically ordered materials.

[Laparoscopic versus laparoscopy-assisted suturing of perforated peptic ulcers (meta-analysis)]. / Laparoskopicheskoe i laparoskopicheski assistirovannoe ushivanie probodnoi yazvy (metaanaliz).

OBJECTIVE: To compare laparoscopic and laparoscopy-assisted repair of perforated peptic ulcer using evidence-based methods. MATERIAL AND METHODS: A systematic review and meta-analysis were carried out in accordance with the recommendations of the Ministry of Health of Russian Federation and Cochrane Handbook for Systematic Reviews.Data searching was carried out in Russian and English languages using the E-library, Cochrane Library and PubMed databases. We analyzed titles and references in specialized journals and thematic reviews, respectively. Clarifying information was obtained via personal contacts with the heads of surgical hospitals. The RevMan 5.4 software was used for statistical analysis. RESULTS: We found no randomized trials devoted to comparison of laparoscopic and laparoscopy-assisted surgeries in patients with perforated peptic ulcer. Meta-analysis was based on non-randomized trials with satisfactory methodological quality according to the I-ROBINS formalized assessment. Overall clinical material included 478 observations: 229 (47.9%) laparoscopic surgeries and 249 (52.1%) laparoscopy-assisted procedures via minimally invasive access. There were no conversions. Incidence of postoperative complications was 4.36 and 8.83% (OR=0.39, 95% CI 0.08, 1.87), postoperative mortality 0.87 and 0.81%, respectively (OR=1.26, 95% CI 0.08, 8.24). Laparoscopic surgeries were shorter (MD= -8 min, 95% CI -9.7, -6.4). Length of hospital-stay was also shorter after laparoscopic surgery (MD= -4.6, 95% CI -9.7, -6.4). CONCLUSION: Laparoscopic operations are shorter and accompanied by lower incidence of postoperative complications and less hospital-stay. Large statistical power is required to confirm these differences.

Synthesis of conjugates of (aR,7S)-colchicine with monoterpenoids and investigation of their biological activity.

Conjugates of the natural alkaloid (aR,7S)-colchicine with bicyclic monoterpenoids and their derivatives were synthesized for the first time. Molecular docking of the synthesized agents in the active site of the main viral protease of the SARS-CoV-2 virus was carried out. The cytotoxic properties of the agents against different cell lines and the ability to inhibit the main viral protease 3CLPro were studied.

[High-tone therapy in complex rehabilitation of patients with post-sternotomy syndrome after coronary artery bypass surgery. (Open-label, prospective, randomized controlled trial)]. / Vysokotonovaya terapiya v kompleksnoi reabilitatsii bol'nykh s poststernotomicheskim sindromom posle aortokoronarnogo shuntirovaniya. (Otkrytoe prospektivnoe randomizirovannoe kontroliruemoe issledovanie).

INTRODUCTION: At present it remains relevant to develop new rehabilitation technologies for patients with circulatory system diseases who have undergone a cardiac surgery to restore the functions of the cardiorespiratory system more quickly, improve physical and mental health, and prevent the development of the atherosclerotic process. AIM: To study the effectiveness and safety of the new rehabilitation technology for the inpatient stage of medical rehabilitation of patients with post-sternotomy syndrome after coronary artery bypass surgery (CABS) using high-tone therapy. MATERIAL AND METHODS: The study included 85 men (the average age was 56.8±2.46 years old) with post-sternotomy syndrome after CABS. They were divided into two groups by simple randomization: the first/main (42 patients) and the second/control (43 patients). The control group of the patients had a standard rehabilitation complex; the main group was additionally prescribed a high-tone therapy according to a local method. The immediate results of the treatment were assessed by the dynamics of the clinical picture, the six-minute walk test, respiratory function, echocardiography, the level of cytokines, C-reactive protein and natriuretic peptide (NT-proBNP); distant - by QOL endpoints (questionnaire MOS SF-36). RESULTS: The groups of the patients were comparable in all baseline parameters. After the course of the procedures in the main group of patients there were positive reliable (p<0.05-0.001) shifts in clinical (pain, shortness of breath, general weakness), functional (forced expiratory vital capacity, forced expiratory volume1, effusion separation) and laboratory parameters (leukocytes, interleukin-2 and 10, NT-proBNP). The intergroup analysis of long-term results registered significant (p<0.05) differences in the QOL of patients in the main group by subscales: the role of somatic problems, vitality and mental health. Compliance to the III stage of medical rehabilitation (outpatient/home) was noted with 95.2% of the patients in the first group and 93.0% in the second. CONCLUSION: The additional appointment of a high-tone therapy to the rehabilitation standard for the patients with post-sternotomy syndrome after CABS significantly improves the immediate and long-term results of the treatment (QOL) contributing to a more pronounced reverse development of inflammatory and edematous syndromes, an increase in physical activity and psychosomatic health. The absence of adverse reactions with all the patients indicates the safety of rehabilitation complexes.

[Therapeutic physical factors in chronic inflammatory diseases of the pelvic organs. (A wounded home-controlled study)]. / Lechebnye fizicheskie faktory pri khronicheskikh vospalitel'nykh zabolevaniyakh organov malogo taza. (Randomizirovannoe kontroliruemoe issledovanie).

INTRODUCTION: In case of chronic inflammatory diseases of the pelvic organs (CID) in women, it is advisable to use therapeutic physical factors that have a sanogenetic effect in rehabilitation treatment programs. AIM: To study the effectiveness of complex restorative treatment of patients with chronic salpingoophoritis with the consistent use of therapeutic physical factors. MATERIAL AND METHODS: The study included 96 patients with chronic salpingoophoritis at the age of 18 to 49 years. Two groups were formed by a simple sampling method: in the main group (MG/n=44), against the background of standardized treatment in inpatient conditions, patients received intravaginal ultrasound therapy, in non-hospital settings - interference therapy; in the control group (CG/n=41) - women received only standardized therapy. The criteria for the effectiveness of treatment were: determination of markers of pain and inflammation; ultrasound examination of the ovarian arteries with their Doppler measurements; assessment of quality of life criteria. RESULTS: Comprehensive restorative treatment of patients with chronic salpingoophoritis with sequential use of curative physical factors (CPF), according to direct and long-term observations, provides a significant reduction in pain intensity (p<0.01), inflammation (p<0.01), peripheral blood flow (p<0.01), physical and mental health (p<0.01). CONCLUSION: The implementation of a new developed method of restorative treatment of patients with chronic salpingoophoritis with sequential use of CPF provided a significant increase of 10-12% in the effectiveness of therapeutic measures in comparison with standardized therapy (p<0.05-<0.01).

[The effect of internal course intake of selenium-modified mineral water on bone mineral density after long-term diet-induced metabolic disorders in the experiment. (Randomized controlled trial)]. / Vliyanie vnutrennego kursovogo priema modifitsirovannykh selenom mineral'nykh vod na mineral'nuyu plotnost' kostnoi tkani posle dlitel'nogo diet-indutsirovannogo narusheniya metabolizma v eksperimente. (Randomizirovannoe kontroliruemoe issledovanie).

INTRODUCTION: The phenomenon of therapeutic and prophylactic effect of natural mineral waters (MW) used to restore tissue tolerance to glucose and normalize basal insulin secretion in metabolic syndrome is well known. At the same time, the use of selenium-enriched MW is promising due to its multitarget action including participation in the regulation of the protein-synthesizing function of cells. AIM: To study the effect of internal course intake of selenium-modified mineral waters of different composition on bone mineral density after long-term diet-induced metabolic disorders in the experiment. MATERIAL AND METHODS: The study was carried out on outbred male white rats that were distributed into 3 control groups (CG) and 4 main groups (MG). In CG1 14 animals received laboratory food and drinking water; in CG2 14 animals were modeled for diet-induced metabolic disorders, and they were withdrawn from the experiment the day after the cancellation of the hypercaloric diet (180 days); after the cancellation of the hypercaloric diet 180 days later 14 animals with diet-induced metabolic disorders in CG3 had a standard diet (laboratory food and drinking water) for 30 days. In the experimental groups (EG), the animals similarly to CG3 were modeled diet-induced metabolic disorders, after the cancellation of the diet they had a standard diet and watering with MW. In MG1 18 animals were given MW1 (Essentuki-4); in MG2 19 animals had a course of MW1Se (Essentuki-4 enriched with selenium); in MG3 14 animals had a course of MW2 (Slavyanovskaya); in MG4 18 animals had a course of MB2Se (Slavyanovskaya enriched with selenium). The weight (body weight) of the animals was monitored monthly. Biochemical studies, densitometry and computed microtomography were used to determine the effectiveness of MW. RESULTS: The characteristics of spongy bone tissue of femoral metaphysis of the rats of the control groups revealed disorders of varying degrees, but, despite this, the bone tissue structure of the examined vertebral bodies in animals without a hyper caloric diet (CG1) was preserved. The analysis of the study results demonstrated a significant effectiveness of selenium-enriched MW in regulating metabolic processes (p<0.05-p<0.01), bone mineral density (p<0.05), reduced bone resorption (p<0.05), that is, the characteristics of spongy bone tissue of femoral metaphysis and vertebral bodies of animals showed a clear tendency to restore bone structure. CONCLUSION: The results of this study make it possible to predict an increase in the effectiveness of medical rehabilitation of patients with somatic diseases when selenium-enriched MW is included in the programmes.

BepiColombo mission confirms stagnation region of Venus and reveals its large extent.

The second Venus flyby of the BepiColombo mission offer a unique opportunity to make a complete tour of one of the few gas-dynamics dominated interaction regions between the supersonic solar wind and a Solar System object. The spacecraft pass through the full Venusian magnetosheath following the plasma streamlines, and cross the subsolar stagnation region during very stable solar wind conditions as observed upstream by the neighboring Solar Orbiter mission. These rare multipoint synergistic observations and stable conditions experimentally confirm what was previously predicted for the barely-explored stagnation region close to solar minimum. Here, we show that this region has a large extend, up to an altitude of 1900 km, and the estimated low energy transfer near the subsolar point confirm that the atmosphere of Venus, despite being non-magnetized and less conductive due to lower ultraviolet flux at solar minimum, is capable of withstanding the solar wind under low dynamic pressure.