Publications by authors named "Smirnova D"

The new HLA-B*38:01:26 allele showed one synonymous nucleotide difference compared to the HLA-B*38:01:01:01 allele in codon 101.

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The new HLA-C*12:02:55 allele showed one synonymous nucleotide difference compared to the HLA-С*12:02:02:01 allele in codon 134.

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Osteoporosis is characterized by increased resorption and decreased bone formation; it is predominantly influenced by genetic factors. G-protein coupled receptors (GPCRs) play a vital role in bone homeostasis, and mutations in these genes are associated with osteoporosis. This study aimed to investigate the impact of single nucleotide polymorphism (SNP) rs1042713 in the gene, encoding the beta-2-adrenergic receptor, on osteoblastogenesis.

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Four novel HLA-B alleles are described from bone marrow volunteers of Russian Registry.

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Dendritic spine morphology is associated with the current state of the synapse and neuron, and changes during synaptic plasticity in response to stimulus. At the same time, dendritic spine alterations are reported during various neurodegenerative and neurodevelopmental disorders and other brain states. Accurate and informative analysis of spine shape has an urgent need for studying the synaptic processes and molecular pathways in normal and pathological conditions, and for testing synapto-protective strategies during preclinical studies.

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All-optical tunability of semiconductor metasurfaces offers unique opportunities for novel time-varying effects, including frequency conversion and light trapping. However, the all-optical processes often induce optical absorption that fundamentally limits the possible dynamic increase of their quality factor (Q-boosting). Here, we propose and numerically demonstrate the concept of large Q-boosting in a single-material metasurface by dynamically reducing its structural anisotropy on a femtosecond timescale.

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  • The study demonstrates the application of machine learning for classifying topological phases in finite leaky photonic lattices using minimal measurement data.
  • The proposed method relies on a single real-space bulk intensity image, avoiding complex phase retrieval techniques.
  • A fully connected neural network is designed to identify topological properties from intensity distributions in waveguide arrays after a localized excitation, mimicking realistic experimental conditions.
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Influenza A viruses (IAVs), which belong to the Orthomyxoviridae family, are RNA viruses characterized by a segmented genome that allows them to evolve and adapt rapidly. These viruses are mainly transmitted by wild waterfowl. In this study, we investigated the evolutionary processes of H7Nx (H7N1, H7N2, H7N3, H7N4, H7N5, H7N6, H7N7, H7N8, H7N9) viruses, which pose a significant pandemic risk due to the known cases of human infection and their potential for rapid genetic evolution and reassortment.

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  • Sclerosing oleogranuloma of the penis is a rare, benign condition resulting from the injection of foreign substances for penile augmentation, leading to painful lesions and quality of life issues in affected males.
  • Diagnosis involves patient history, physical examination, and histological analysis, while treatment typically requires surgical excision followed by reconstruction.
  • A clinical case detailing the one-stage Sapozhkov-Reich procedure was performed on a 21-year-old man to address a giant oleogranuloma with multiple lesions and ulceration.
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Calciprotein particles (CPPs) are essential circulating scavengers of excessive Ca and PO ions, representing a vehicle that removes them from the human body and precludes extraskeletal calcification. Having been internalised by endothelial cells (ECs), CPPs induce their dysfunction, which is accompanied by a remarkable molecular reconfiguration, although little is known about this process's extracellular signatures. Here, we applied ultra-high performance liquid chromatography-tandem mass spectrometry to perform a secretome-wide profiling of the cell culture supernatant from primary human coronary artery ECs (HCAECs) and internal thoracic artery ECs (HITAECs) treated with primary CPPs (CPP-P), secondary CPPs (CPP-S), magnesiprotein particles (MPPs), or Ca/Mg-free Dulbecco's phosphate-buffered saline (DPBS) for 24 h.

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  • * The study evaluated the effects of infusion therapy on microcirculation in sepsis patients, using advanced monitoring techniques and involving a comparison between bacterial and COVID-19-related sepsis.
  • * Results showed that patients with bacterial sepsis had worse microcirculation dysfunction and higher serum lactate levels than those with COVID-19, emphasizing the importance of monitoring microcirculation and using tools like remote photoplethysmography (rPPG) and automated capillary refill time (aCRT) in treatment.
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  • A study was conducted to compare the effects of mild and moderate hypothermic circulatory arrest (MMHCA) versus deep and profound hypothermic circulatory arrest (DPHCA) during acute type A aortic dissection repairs on blood loss and mortality.
  • The results showed that the MMHCA group had significantly less chest re-exploration due to bleeding, reduced post-surgery blood loss, and lower red blood cell transfusion needs compared to the DPHCA group.
  • Additionally, the MMHCA group experienced lower in-hospital mortality rates and a 25% reduction in long-term mortality compared to those in the DPHCA group, indicating better overall survival outcomes.
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  • There is a recognized link between depression in the elderly and an increased risk of developing Alzheimer's disease, with both conditions potentially influencing each other through shared cognitive and social symptoms.
  • The study reviews existing literature on language disturbances and cognitive impairments in both depression and Alzheimer's disease, utilizing PET imaging to identify underlying neurobiological patterns.
  • Findings suggest that both disorders exhibit similar language issues, such as simplified speech patterns, and share common brain metabolic deficits, indicating that targeted language therapy could help improve cognitive function in patients experiencing both conditions.
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Background: Autism spectrum disorder (ASD) is a complex neurodevelopmental disorder that affects a significant proportion of the world's population, particularly children and adolescents. The sensory processing issues can be an evidence-based target for therapeutic/corrective interventions by controlling the intensity and targeted replacement of maladaptive sensory stimuli with neutral stimuli using virtual reality or augmented reality.

Subjects And Methods: We searched for articles on Pubmed.

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  • The study investigates employee burnout stemming from prolonged workplace stress and aims to develop techniques to address it, specifically using a virtual reality (VR) and biofeedback intervention called ReViSide.
  • In a randomized controlled trial with 140 adult participants experiencing emotional burnout, one group will use the ReViSide technology while the control group receives traditional psychocorrection, measuring outcomes like emotional burnout and mental health symptoms.
  • The hypothesis is that participants using VR will show more significant improvements in burnout levels, including emotional exhaustion and personal accomplishment, along with potential changes in brain activity linked to lower distress levels.
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  • Alzheimer's disease (AD) is a major global health concern with limited treatment options, leading researchers to investigate non-invasive therapies like repetitive transcranial magnetic stimulation (rTMS) to improve cognitive function in patients.
  • A systematic review and meta-analysis of 22 studies found that high-frequency rTMS, especially targeting the dorsolateral prefrontal cortex, significantly enhanced cognitive abilities in AD patients with a moderate effect size.
  • While the findings are promising, they also revealed substantial variability among studies and potential publication bias, indicating the need for further investigation to optimize rTMS treatment parameters.
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Background: We examined the prevalence and spread of conspiracy beliefs about the origins of the COVID-19 pandemic among representatives of the Russian population. Our study aimed to identify belief clusters and develop predictive models to understand the factors that influence conspiracy beliefs, particularly in the context of how they might evolve in response to socio-political events and cause mental disturbances, thus in relation to specific pathways of the infodemic and psychodemic waves that spread among vulnerable population groups.

Methods: Data respondents to the international COMET-G study living in Russia during pandemic period (n=7,777) were analyzed using descriptive statistics, K-means clustering, and various machine learning models, including gradient boosting.

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Background: The prevalence of depressive disorders in the general population increased significantly during the COVID-19 pandemic. The aim of this study is to examine the relationship between history of anxiety and depressive disorders and COVID-19 outcome, hospitalization and severity of anxiety and depression, and whether such relationships are explicable by direct impact of the disease.

Subjects And Methods: We conducted a questionnaire survey among 98 inpatients in the Department of Infectious Diseases of the Clinics of Samara State Medical University.

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Five nucleotide substitutions in exon 3 of HLA-B*35:64:01 results in the novel allele, HLA-B*35:611.

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  • * Recent advancements involve using a pump beam to enhance signal conversion via four-wave mixing (FWM), focusing on resonances at the pump wavelength to achieve better nonlinear imaging.
  • * This approach allows for broadband nonlinear imaging across a wide infrared range (1000-4000 nm) with metasurfaces, representing a significant improvement for future compact photonic devices in all-optical infrared imaging.
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